| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20250407191756.3584261-1-robh@kernel.org>
Date: Mon, 7 Apr 2025 14:17:39 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Lubomir Rintel <lkundrak@...sk>,
Arnd Bergmann <arnd@...db.de>,
linux-kernel@...r.kernel.org,
linux-usb@...r.kernel.org
Subject: [PATCH v2] usb: Remove orphaned UDC drivers
These drivers have no way to probe as there are no match tables nor
devices created with a matching name in the kernel tree.
Marvell UDC was only ever supported by board files which were removed
in 2022.
For Marvell U3D, which was added in 2012, the PXA2128 aka MMP3 support
was never upstreamed with board files and only revived in 2019 with DT
support. No U3D DT support has been added since then.
The PLX net2272 driver was formerly used on blackfin. It also has PCI
support, but that appears to be only for a development board which is
likely unused given this device dates back to 2006.
Cc: Lubomir Rintel <lkundrak@...sk>
Acked-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
v2:
- Add fusb300 and net2272 to removals
---
drivers/usb/gadget/udc/Kconfig | 44 -
drivers/usb/gadget/udc/Makefile | 5 -
drivers/usb/gadget/udc/fusb300_udc.c | 1516 --------------
drivers/usb/gadget/udc/fusb300_udc.h | 675 -------
drivers/usb/gadget/udc/mv_u3d.h | 317 ---
drivers/usb/gadget/udc/mv_u3d_core.c | 2062 -------------------
drivers/usb/gadget/udc/mv_udc.h | 309 ---
drivers/usb/gadget/udc/mv_udc_core.c | 2426 -----------------------
drivers/usb/gadget/udc/net2272.c | 2723 --------------------------
drivers/usb/gadget/udc/net2272.h | 584 ------
drivers/usb/phy/Kconfig | 12 -
drivers/usb/phy/Makefile | 1 -
drivers/usb/phy/phy-mv-usb.c | 881 ---------
13 files changed, 11555 deletions(-)
delete mode 100644 drivers/usb/gadget/udc/fusb300_udc.c
delete mode 100644 drivers/usb/gadget/udc/fusb300_udc.h
delete mode 100644 drivers/usb/gadget/udc/mv_u3d.h
delete mode 100644 drivers/usb/gadget/udc/mv_u3d_core.c
delete mode 100644 drivers/usb/gadget/udc/mv_udc.h
delete mode 100644 drivers/usb/gadget/udc/mv_udc_core.c
delete mode 100644 drivers/usb/gadget/udc/net2272.c
delete mode 100644 drivers/usb/gadget/udc/net2272.h
delete mode 100644 drivers/usb/phy/phy-mv-usb.c
diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig
index aae1787320d4..26460340fbc9 100644
--- a/drivers/usb/gadget/udc/Kconfig
+++ b/drivers/usb/gadget/udc/Kconfig
@@ -102,12 +102,6 @@ config USB_FSL_USB2
dynamically linked module called "fsl_usb2_udc" and force
all gadget drivers to also be dynamically linked.
-config USB_FUSB300
- tristate "Faraday FUSB300 USB Peripheral Controller"
- depends on !PHYS_ADDR_T_64BIT && HAS_DMA
- help
- Faraday usb device controller FUSB300 driver
-
config USB_GR_UDC
tristate "Aeroflex Gaisler GRUSBDC USB Peripheral Controller Driver"
depends on HAS_DMA
@@ -228,21 +222,6 @@ config USB_PXA27X
dynamically linked module called "pxa27x_udc" and force all
gadget drivers to also be dynamically linked.
-config USB_MV_UDC
- tristate "Marvell USB2.0 Device Controller"
- depends on HAS_DMA
- help
- Marvell Socs (including PXA and MMP series) include a high speed
- USB2.0 OTG controller, which can be configured as high speed or
- full speed USB peripheral.
-
-config USB_MV_U3D
- depends on HAS_DMA
- tristate "MARVELL PXA2128 USB 3.0 controller"
- help
- MARVELL PXA2128 Processor series include a super speed USB3.0 device
- controller, which support super speed USB peripheral.
-
config USB_SNP_CORE
depends on (USB_AMD5536UDC || USB_SNP_UDC_PLAT)
depends on HAS_DMA
@@ -326,29 +305,6 @@ config USB_FSL_QE
Set CONFIG_USB_GADGET to "m" to build this driver as a
dynamically linked module called "fsl_qe_udc".
-config USB_NET2272
- depends on HAS_IOMEM
- tristate "PLX NET2272"
- help
- PLX NET2272 is a USB peripheral controller which supports
- both full and high speed USB 2.0 data transfers.
-
- It has three configurable endpoints, as well as endpoint zero
- (for control transfer).
- Say "y" to link the driver statically, or "m" to build a
- dynamically linked module called "net2272" and force all
- gadget drivers to also be dynamically linked.
-
-config USB_NET2272_DMA
- bool "Support external DMA controller"
- depends on USB_NET2272 && HAS_DMA
- help
- The NET2272 part can optionally support an external DMA
- controller, but your board has to have support in the
- driver itself.
-
- If unsure, say "N" here. The driver works fine in PIO mode.
-
config USB_NET2280
tristate "NetChip NET228x / PLX USB3x8x"
depends on USB_PCI
diff --git a/drivers/usb/gadget/udc/Makefile b/drivers/usb/gadget/udc/Makefile
index b52f93e9c61d..1b9b1a4f9c57 100644
--- a/drivers/usb/gadget/udc/Makefile
+++ b/drivers/usb/gadget/udc/Makefile
@@ -9,7 +9,6 @@ udc-core-y := core.o trace.o
#
obj-$(CONFIG_USB_GADGET) += udc-core.o
obj-$(CONFIG_USB_DUMMY_HCD) += dummy_hcd.o
-obj-$(CONFIG_USB_NET2272) += net2272.o
obj-$(CONFIG_USB_NET2280) += net2280.o
obj-$(CONFIG_USB_SNP_CORE) += snps_udc_core.o
obj-$(CONFIG_USB_AMD5536UDC) += amd5536udc_pci.o
@@ -31,10 +30,6 @@ obj-$(CONFIG_USB_RENESAS_USBF) += renesas_usbf.o
obj-$(CONFIG_USB_FSL_QE) += fsl_qe_udc.o
obj-$(CONFIG_USB_LPC32XX) += lpc32xx_udc.o
obj-$(CONFIG_USB_EG20T) += pch_udc.o
-obj-$(CONFIG_USB_MV_UDC) += mv_udc.o
-mv_udc-y := mv_udc_core.o
-obj-$(CONFIG_USB_FUSB300) += fusb300_udc.o
-obj-$(CONFIG_USB_MV_U3D) += mv_u3d_core.o
obj-$(CONFIG_USB_GR_UDC) += gr_udc.o
obj-$(CONFIG_USB_GADGET_XILINX) += udc-xilinx.o
obj-$(CONFIG_USB_SNP_UDC_PLAT) += snps_udc_plat.o
diff --git a/drivers/usb/gadget/udc/fusb300_udc.c b/drivers/usb/gadget/udc/fusb300_udc.c
deleted file mode 100644
index 5e94a99b3e53..000000000000
--- a/drivers/usb/gadget/udc/fusb300_udc.c
+++ /dev/null
@@ -1,1516 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Fusb300 UDC (USB gadget)
- *
- * Copyright (C) 2010 Faraday Technology Corp.
- *
- * Author : Yuan-hsin Chen <yhchen@...aday-tech.com>
- */
-#include <linux/dma-mapping.h>
-#include <linux/err.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/usb/ch9.h>
-#include <linux/usb/gadget.h>
-
-#include "fusb300_udc.h"
-
-MODULE_DESCRIPTION("FUSB300 USB gadget driver");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Yuan-Hsin Chen, Feng-Hsin Chiang <john453@...aday-tech.com>");
-MODULE_ALIAS("platform:fusb300_udc");
-
-#define DRIVER_VERSION "20 October 2010"
-
-static const char udc_name[] = "fusb300_udc";
-static const char * const fusb300_ep_name[] = {
- "ep0", "ep1", "ep2", "ep3", "ep4", "ep5", "ep6", "ep7", "ep8", "ep9",
- "ep10", "ep11", "ep12", "ep13", "ep14", "ep15"
-};
-
-static void done(struct fusb300_ep *ep, struct fusb300_request *req,
- int status);
-
-static void fusb300_enable_bit(struct fusb300 *fusb300, u32 offset,
- u32 value)
-{
- u32 reg = ioread32(fusb300->reg + offset);
-
- reg |= value;
- iowrite32(reg, fusb300->reg + offset);
-}
-
-static void fusb300_disable_bit(struct fusb300 *fusb300, u32 offset,
- u32 value)
-{
- u32 reg = ioread32(fusb300->reg + offset);
-
- reg &= ~value;
- iowrite32(reg, fusb300->reg + offset);
-}
-
-
-static void fusb300_ep_setting(struct fusb300_ep *ep,
- struct fusb300_ep_info info)
-{
- ep->epnum = info.epnum;
- ep->type = info.type;
-}
-
-static int fusb300_ep_release(struct fusb300_ep *ep)
-{
- if (!ep->epnum)
- return 0;
- ep->epnum = 0;
- ep->stall = 0;
- ep->wedged = 0;
- return 0;
-}
-
-static void fusb300_set_fifo_entry(struct fusb300 *fusb300,
- u32 ep)
-{
- u32 val = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
-
- val &= ~FUSB300_EPSET1_FIFOENTRY_MSK;
- val |= FUSB300_EPSET1_FIFOENTRY(FUSB300_FIFO_ENTRY_NUM);
- iowrite32(val, fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
-}
-
-static void fusb300_set_start_entry(struct fusb300 *fusb300,
- u8 ep)
-{
- u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
- u32 start_entry = fusb300->fifo_entry_num * FUSB300_FIFO_ENTRY_NUM;
-
- reg &= ~FUSB300_EPSET1_START_ENTRY_MSK ;
- reg |= FUSB300_EPSET1_START_ENTRY(start_entry);
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
- if (fusb300->fifo_entry_num == FUSB300_MAX_FIFO_ENTRY) {
- fusb300->fifo_entry_num = 0;
- fusb300->addrofs = 0;
- pr_err("fifo entry is over the maximum number!\n");
- } else
- fusb300->fifo_entry_num++;
-}
-
-/* set fusb300_set_start_entry first before fusb300_set_epaddrofs */
-static void fusb300_set_epaddrofs(struct fusb300 *fusb300,
- struct fusb300_ep_info info)
-{
- u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum));
-
- reg &= ~FUSB300_EPSET2_ADDROFS_MSK;
- reg |= FUSB300_EPSET2_ADDROFS(fusb300->addrofs);
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum));
- fusb300->addrofs += (info.maxpacket + 7) / 8 * FUSB300_FIFO_ENTRY_NUM;
-}
-
-static void ep_fifo_setting(struct fusb300 *fusb300,
- struct fusb300_ep_info info)
-{
- fusb300_set_fifo_entry(fusb300, info.epnum);
- fusb300_set_start_entry(fusb300, info.epnum);
- fusb300_set_epaddrofs(fusb300, info);
-}
-
-static void fusb300_set_eptype(struct fusb300 *fusb300,
- struct fusb300_ep_info info)
-{
- u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
-
- reg &= ~FUSB300_EPSET1_TYPE_MSK;
- reg |= FUSB300_EPSET1_TYPE(info.type);
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
-}
-
-static void fusb300_set_epdir(struct fusb300 *fusb300,
- struct fusb300_ep_info info)
-{
- u32 reg;
-
- if (!info.dir_in)
- return;
- reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
- reg &= ~FUSB300_EPSET1_DIR_MSK;
- reg |= FUSB300_EPSET1_DIRIN;
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
-}
-
-static void fusb300_set_ep_active(struct fusb300 *fusb300,
- u8 ep)
-{
- u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
-
- reg |= FUSB300_EPSET1_ACTEN;
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(ep));
-}
-
-static void fusb300_set_epmps(struct fusb300 *fusb300,
- struct fusb300_ep_info info)
-{
- u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum));
-
- reg &= ~FUSB300_EPSET2_MPS_MSK;
- reg |= FUSB300_EPSET2_MPS(info.maxpacket);
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET2(info.epnum));
-}
-
-static void fusb300_set_interval(struct fusb300 *fusb300,
- struct fusb300_ep_info info)
-{
- u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
-
- reg &= ~FUSB300_EPSET1_INTERVAL(0x7);
- reg |= FUSB300_EPSET1_INTERVAL(info.interval);
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
-}
-
-static void fusb300_set_bwnum(struct fusb300 *fusb300,
- struct fusb300_ep_info info)
-{
- u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
-
- reg &= ~FUSB300_EPSET1_BWNUM(0x3);
- reg |= FUSB300_EPSET1_BWNUM(info.bw_num);
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET1(info.epnum));
-}
-
-static void set_ep_reg(struct fusb300 *fusb300,
- struct fusb300_ep_info info)
-{
- fusb300_set_eptype(fusb300, info);
- fusb300_set_epdir(fusb300, info);
- fusb300_set_epmps(fusb300, info);
-
- if (info.interval)
- fusb300_set_interval(fusb300, info);
-
- if (info.bw_num)
- fusb300_set_bwnum(fusb300, info);
-
- fusb300_set_ep_active(fusb300, info.epnum);
-}
-
-static int config_ep(struct fusb300_ep *ep,
- const struct usb_endpoint_descriptor *desc)
-{
- struct fusb300 *fusb300 = ep->fusb300;
- struct fusb300_ep_info info;
-
- ep->ep.desc = desc;
-
- info.interval = 0;
- info.addrofs = 0;
- info.bw_num = 0;
-
- info.type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
- info.dir_in = (desc->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ? 1 : 0;
- info.maxpacket = usb_endpoint_maxp(desc);
- info.epnum = desc->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
-
- if ((info.type == USB_ENDPOINT_XFER_INT) ||
- (info.type == USB_ENDPOINT_XFER_ISOC)) {
- info.interval = desc->bInterval;
- if (info.type == USB_ENDPOINT_XFER_ISOC)
- info.bw_num = usb_endpoint_maxp_mult(desc);
- }
-
- ep_fifo_setting(fusb300, info);
-
- set_ep_reg(fusb300, info);
-
- fusb300_ep_setting(ep, info);
-
- fusb300->ep[info.epnum] = ep;
-
- return 0;
-}
-
-static int fusb300_enable(struct usb_ep *_ep,
- const struct usb_endpoint_descriptor *desc)
-{
- struct fusb300_ep *ep;
-
- ep = container_of(_ep, struct fusb300_ep, ep);
-
- if (ep->fusb300->reenum) {
- ep->fusb300->fifo_entry_num = 0;
- ep->fusb300->addrofs = 0;
- ep->fusb300->reenum = 0;
- }
-
- return config_ep(ep, desc);
-}
-
-static int fusb300_disable(struct usb_ep *_ep)
-{
- struct fusb300_ep *ep;
- struct fusb300_request *req;
- unsigned long flags;
-
- ep = container_of(_ep, struct fusb300_ep, ep);
-
- BUG_ON(!ep);
-
- while (!list_empty(&ep->queue)) {
- req = list_entry(ep->queue.next, struct fusb300_request, queue);
- spin_lock_irqsave(&ep->fusb300->lock, flags);
- done(ep, req, -ECONNRESET);
- spin_unlock_irqrestore(&ep->fusb300->lock, flags);
- }
-
- return fusb300_ep_release(ep);
-}
-
-static struct usb_request *fusb300_alloc_request(struct usb_ep *_ep,
- gfp_t gfp_flags)
-{
- struct fusb300_request *req;
-
- req = kzalloc(sizeof(struct fusb300_request), gfp_flags);
- if (!req)
- return NULL;
- INIT_LIST_HEAD(&req->queue);
-
- return &req->req;
-}
-
-static void fusb300_free_request(struct usb_ep *_ep, struct usb_request *_req)
-{
- struct fusb300_request *req;
-
- req = container_of(_req, struct fusb300_request, req);
- kfree(req);
-}
-
-static int enable_fifo_int(struct fusb300_ep *ep)
-{
- struct fusb300 *fusb300 = ep->fusb300;
-
- if (ep->epnum) {
- fusb300_enable_bit(fusb300, FUSB300_OFFSET_IGER0,
- FUSB300_IGER0_EEPn_FIFO_INT(ep->epnum));
- } else {
- pr_err("can't enable_fifo_int ep0\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int disable_fifo_int(struct fusb300_ep *ep)
-{
- struct fusb300 *fusb300 = ep->fusb300;
-
- if (ep->epnum) {
- fusb300_disable_bit(fusb300, FUSB300_OFFSET_IGER0,
- FUSB300_IGER0_EEPn_FIFO_INT(ep->epnum));
- } else {
- pr_err("can't disable_fifo_int ep0\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
-static void fusb300_set_cxlen(struct fusb300 *fusb300, u32 length)
-{
- u32 reg;
-
- reg = ioread32(fusb300->reg + FUSB300_OFFSET_CSR);
- reg &= ~FUSB300_CSR_LEN_MSK;
- reg |= FUSB300_CSR_LEN(length);
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_CSR);
-}
-
-/* write data to cx fifo */
-static void fusb300_wrcxf(struct fusb300_ep *ep,
- struct fusb300_request *req)
-{
- int i = 0;
- u8 *tmp;
- u32 data;
- struct fusb300 *fusb300 = ep->fusb300;
- u32 length = req->req.length - req->req.actual;
-
- tmp = req->req.buf + req->req.actual;
-
- if (length > SS_CTL_MAX_PACKET_SIZE) {
- fusb300_set_cxlen(fusb300, SS_CTL_MAX_PACKET_SIZE);
- for (i = (SS_CTL_MAX_PACKET_SIZE >> 2); i > 0; i--) {
- data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16 |
- *(tmp + 3) << 24;
- iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
- tmp += 4;
- }
- req->req.actual += SS_CTL_MAX_PACKET_SIZE;
- } else { /* length is less than max packet size */
- fusb300_set_cxlen(fusb300, length);
- for (i = length >> 2; i > 0; i--) {
- data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16 |
- *(tmp + 3) << 24;
- printk(KERN_DEBUG " 0x%x\n", data);
- iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
- tmp = tmp + 4;
- }
- switch (length % 4) {
- case 1:
- data = *tmp;
- printk(KERN_DEBUG " 0x%x\n", data);
- iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
- break;
- case 2:
- data = *tmp | *(tmp + 1) << 8;
- printk(KERN_DEBUG " 0x%x\n", data);
- iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
- break;
- case 3:
- data = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16;
- printk(KERN_DEBUG " 0x%x\n", data);
- iowrite32(data, fusb300->reg + FUSB300_OFFSET_CXPORT);
- break;
- default:
- break;
- }
- req->req.actual += length;
- }
-}
-
-static void fusb300_set_epnstall(struct fusb300 *fusb300, u8 ep)
-{
- fusb300_enable_bit(fusb300, FUSB300_OFFSET_EPSET0(ep),
- FUSB300_EPSET0_STL);
-}
-
-static void fusb300_clear_epnstall(struct fusb300 *fusb300, u8 ep)
-{
- u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET0(ep));
-
- if (reg & FUSB300_EPSET0_STL) {
- printk(KERN_DEBUG "EP%d stall... Clear!!\n", ep);
- reg |= FUSB300_EPSET0_STL_CLR;
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET0(ep));
- }
-}
-
-static void ep0_queue(struct fusb300_ep *ep, struct fusb300_request *req)
-{
- if (ep->fusb300->ep0_dir) { /* if IN */
- if (req->req.length) {
- fusb300_wrcxf(ep, req);
- } else
- printk(KERN_DEBUG "%s : req->req.length = 0x%x\n",
- __func__, req->req.length);
- if ((req->req.length == req->req.actual) ||
- (req->req.actual < ep->ep.maxpacket))
- done(ep, req, 0);
- } else { /* OUT */
- if (!req->req.length)
- done(ep, req, 0);
- else
- fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_IGER1,
- FUSB300_IGER1_CX_OUT_INT);
- }
-}
-
-static int fusb300_queue(struct usb_ep *_ep, struct usb_request *_req,
- gfp_t gfp_flags)
-{
- struct fusb300_ep *ep;
- struct fusb300_request *req;
- unsigned long flags;
- int request = 0;
-
- ep = container_of(_ep, struct fusb300_ep, ep);
- req = container_of(_req, struct fusb300_request, req);
-
- if (ep->fusb300->gadget.speed == USB_SPEED_UNKNOWN)
- return -ESHUTDOWN;
-
- spin_lock_irqsave(&ep->fusb300->lock, flags);
-
- if (list_empty(&ep->queue))
- request = 1;
-
- list_add_tail(&req->queue, &ep->queue);
-
- req->req.actual = 0;
- req->req.status = -EINPROGRESS;
-
- if (ep->ep.desc == NULL) /* ep0 */
- ep0_queue(ep, req);
- else if (request && !ep->stall)
- enable_fifo_int(ep);
-
- spin_unlock_irqrestore(&ep->fusb300->lock, flags);
-
- return 0;
-}
-
-static int fusb300_dequeue(struct usb_ep *_ep, struct usb_request *_req)
-{
- struct fusb300_ep *ep;
- struct fusb300_request *req;
- unsigned long flags;
-
- ep = container_of(_ep, struct fusb300_ep, ep);
- req = container_of(_req, struct fusb300_request, req);
-
- spin_lock_irqsave(&ep->fusb300->lock, flags);
- if (!list_empty(&ep->queue))
- done(ep, req, -ECONNRESET);
- spin_unlock_irqrestore(&ep->fusb300->lock, flags);
-
- return 0;
-}
-
-static int fusb300_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedge)
-{
- struct fusb300_ep *ep;
- struct fusb300 *fusb300;
- unsigned long flags;
- int ret = 0;
-
- ep = container_of(_ep, struct fusb300_ep, ep);
-
- fusb300 = ep->fusb300;
-
- spin_lock_irqsave(&ep->fusb300->lock, flags);
-
- if (!list_empty(&ep->queue)) {
- ret = -EAGAIN;
- goto out;
- }
-
- if (value) {
- fusb300_set_epnstall(fusb300, ep->epnum);
- ep->stall = 1;
- if (wedge)
- ep->wedged = 1;
- } else {
- fusb300_clear_epnstall(fusb300, ep->epnum);
- ep->stall = 0;
- ep->wedged = 0;
- }
-
-out:
- spin_unlock_irqrestore(&ep->fusb300->lock, flags);
- return ret;
-}
-
-static int fusb300_set_halt(struct usb_ep *_ep, int value)
-{
- return fusb300_set_halt_and_wedge(_ep, value, 0);
-}
-
-static int fusb300_set_wedge(struct usb_ep *_ep)
-{
- return fusb300_set_halt_and_wedge(_ep, 1, 1);
-}
-
-static void fusb300_fifo_flush(struct usb_ep *_ep)
-{
-}
-
-static const struct usb_ep_ops fusb300_ep_ops = {
- .enable = fusb300_enable,
- .disable = fusb300_disable,
-
- .alloc_request = fusb300_alloc_request,
- .free_request = fusb300_free_request,
-
- .queue = fusb300_queue,
- .dequeue = fusb300_dequeue,
-
- .set_halt = fusb300_set_halt,
- .fifo_flush = fusb300_fifo_flush,
- .set_wedge = fusb300_set_wedge,
-};
-
-/*****************************************************************************/
-static void fusb300_clear_int(struct fusb300 *fusb300, u32 offset,
- u32 value)
-{
- iowrite32(value, fusb300->reg + offset);
-}
-
-static void fusb300_reset(void)
-{
-}
-
-static void fusb300_set_cxstall(struct fusb300 *fusb300)
-{
- fusb300_enable_bit(fusb300, FUSB300_OFFSET_CSR,
- FUSB300_CSR_STL);
-}
-
-static void fusb300_set_cxdone(struct fusb300 *fusb300)
-{
- fusb300_enable_bit(fusb300, FUSB300_OFFSET_CSR,
- FUSB300_CSR_DONE);
-}
-
-/* read data from cx fifo */
-static void fusb300_rdcxf(struct fusb300 *fusb300,
- u8 *buffer, u32 length)
-{
- int i = 0;
- u8 *tmp;
- u32 data;
-
- tmp = buffer;
-
- for (i = (length >> 2); i > 0; i--) {
- data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT);
- printk(KERN_DEBUG " 0x%x\n", data);
- *tmp = data & 0xFF;
- *(tmp + 1) = (data >> 8) & 0xFF;
- *(tmp + 2) = (data >> 16) & 0xFF;
- *(tmp + 3) = (data >> 24) & 0xFF;
- tmp = tmp + 4;
- }
-
- switch (length % 4) {
- case 1:
- data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT);
- printk(KERN_DEBUG " 0x%x\n", data);
- *tmp = data & 0xFF;
- break;
- case 2:
- data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT);
- printk(KERN_DEBUG " 0x%x\n", data);
- *tmp = data & 0xFF;
- *(tmp + 1) = (data >> 8) & 0xFF;
- break;
- case 3:
- data = ioread32(fusb300->reg + FUSB300_OFFSET_CXPORT);
- printk(KERN_DEBUG " 0x%x\n", data);
- *tmp = data & 0xFF;
- *(tmp + 1) = (data >> 8) & 0xFF;
- *(tmp + 2) = (data >> 16) & 0xFF;
- break;
- default:
- break;
- }
-}
-
-static void fusb300_rdfifo(struct fusb300_ep *ep,
- struct fusb300_request *req,
- u32 length)
-{
- int i = 0;
- u8 *tmp;
- u32 data, reg;
- struct fusb300 *fusb300 = ep->fusb300;
-
- tmp = req->req.buf + req->req.actual;
- req->req.actual += length;
-
- if (req->req.actual > req->req.length)
- printk(KERN_DEBUG "req->req.actual > req->req.length\n");
-
- for (i = (length >> 2); i > 0; i--) {
- data = ioread32(fusb300->reg +
- FUSB300_OFFSET_EPPORT(ep->epnum));
- *tmp = data & 0xFF;
- *(tmp + 1) = (data >> 8) & 0xFF;
- *(tmp + 2) = (data >> 16) & 0xFF;
- *(tmp + 3) = (data >> 24) & 0xFF;
- tmp = tmp + 4;
- }
-
- switch (length % 4) {
- case 1:
- data = ioread32(fusb300->reg +
- FUSB300_OFFSET_EPPORT(ep->epnum));
- *tmp = data & 0xFF;
- break;
- case 2:
- data = ioread32(fusb300->reg +
- FUSB300_OFFSET_EPPORT(ep->epnum));
- *tmp = data & 0xFF;
- *(tmp + 1) = (data >> 8) & 0xFF;
- break;
- case 3:
- data = ioread32(fusb300->reg +
- FUSB300_OFFSET_EPPORT(ep->epnum));
- *tmp = data & 0xFF;
- *(tmp + 1) = (data >> 8) & 0xFF;
- *(tmp + 2) = (data >> 16) & 0xFF;
- break;
- default:
- break;
- }
-
- do {
- reg = ioread32(fusb300->reg + FUSB300_OFFSET_IGR1);
- reg &= FUSB300_IGR1_SYNF0_EMPTY_INT;
- if (i)
- printk(KERN_INFO "sync fifo is not empty!\n");
- i++;
- } while (!reg);
-}
-
-static u8 fusb300_get_epnstall(struct fusb300 *fusb300, u8 ep)
-{
- u8 value;
- u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPSET0(ep));
-
- value = reg & FUSB300_EPSET0_STL;
-
- return value;
-}
-
-static u8 fusb300_get_cxstall(struct fusb300 *fusb300)
-{
- u8 value;
- u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_CSR);
-
- value = (reg & FUSB300_CSR_STL) >> 1;
-
- return value;
-}
-
-static void request_error(struct fusb300 *fusb300)
-{
- fusb300_set_cxstall(fusb300);
- printk(KERN_DEBUG "request error!!\n");
-}
-
-static void get_status(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
-__releases(fusb300->lock)
-__acquires(fusb300->lock)
-{
- u8 ep;
- u16 status = 0;
- u16 w_index = ctrl->wIndex;
-
- switch (ctrl->bRequestType & USB_RECIP_MASK) {
- case USB_RECIP_DEVICE:
- status = 1 << USB_DEVICE_SELF_POWERED;
- break;
- case USB_RECIP_INTERFACE:
- status = 0;
- break;
- case USB_RECIP_ENDPOINT:
- ep = w_index & USB_ENDPOINT_NUMBER_MASK;
- if (ep) {
- if (fusb300_get_epnstall(fusb300, ep))
- status = 1 << USB_ENDPOINT_HALT;
- } else {
- if (fusb300_get_cxstall(fusb300))
- status = 0;
- }
- break;
-
- default:
- request_error(fusb300);
- return; /* exit */
- }
-
- fusb300->ep0_data = cpu_to_le16(status);
- fusb300->ep0_req->buf = &fusb300->ep0_data;
- fusb300->ep0_req->length = 2;
-
- spin_unlock(&fusb300->lock);
- fusb300_queue(fusb300->gadget.ep0, fusb300->ep0_req, GFP_KERNEL);
- spin_lock(&fusb300->lock);
-}
-
-static void set_feature(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
-{
- u8 ep;
-
- switch (ctrl->bRequestType & USB_RECIP_MASK) {
- case USB_RECIP_DEVICE:
- fusb300_set_cxdone(fusb300);
- break;
- case USB_RECIP_INTERFACE:
- fusb300_set_cxdone(fusb300);
- break;
- case USB_RECIP_ENDPOINT: {
- u16 w_index = le16_to_cpu(ctrl->wIndex);
-
- ep = w_index & USB_ENDPOINT_NUMBER_MASK;
- if (ep)
- fusb300_set_epnstall(fusb300, ep);
- else
- fusb300_set_cxstall(fusb300);
- fusb300_set_cxdone(fusb300);
- }
- break;
- default:
- request_error(fusb300);
- break;
- }
-}
-
-static void fusb300_clear_seqnum(struct fusb300 *fusb300, u8 ep)
-{
- fusb300_enable_bit(fusb300, FUSB300_OFFSET_EPSET0(ep),
- FUSB300_EPSET0_CLRSEQNUM);
-}
-
-static void clear_feature(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
-{
- struct fusb300_ep *ep =
- fusb300->ep[ctrl->wIndex & USB_ENDPOINT_NUMBER_MASK];
-
- switch (ctrl->bRequestType & USB_RECIP_MASK) {
- case USB_RECIP_DEVICE:
- fusb300_set_cxdone(fusb300);
- break;
- case USB_RECIP_INTERFACE:
- fusb300_set_cxdone(fusb300);
- break;
- case USB_RECIP_ENDPOINT:
- if (ctrl->wIndex & USB_ENDPOINT_NUMBER_MASK) {
- if (ep->wedged) {
- fusb300_set_cxdone(fusb300);
- break;
- }
- if (ep->stall) {
- ep->stall = 0;
- fusb300_clear_seqnum(fusb300, ep->epnum);
- fusb300_clear_epnstall(fusb300, ep->epnum);
- if (!list_empty(&ep->queue))
- enable_fifo_int(ep);
- }
- }
- fusb300_set_cxdone(fusb300);
- break;
- default:
- request_error(fusb300);
- break;
- }
-}
-
-static void fusb300_set_dev_addr(struct fusb300 *fusb300, u16 addr)
-{
- u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_DAR);
-
- reg &= ~FUSB300_DAR_DRVADDR_MSK;
- reg |= FUSB300_DAR_DRVADDR(addr);
-
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_DAR);
-}
-
-static void set_address(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
-{
- if (ctrl->wValue >= 0x0100)
- request_error(fusb300);
- else {
- fusb300_set_dev_addr(fusb300, ctrl->wValue);
- fusb300_set_cxdone(fusb300);
- }
-}
-
-#define UVC_COPY_DESCRIPTORS(mem, src) \
- do { \
- const struct usb_descriptor_header * const *__src; \
- for (__src = src; *__src; ++__src) { \
- memcpy(mem, *__src, (*__src)->bLength); \
- mem += (*__src)->bLength; \
- } \
- } while (0)
-
-static int setup_packet(struct fusb300 *fusb300, struct usb_ctrlrequest *ctrl)
-{
- u8 *p = (u8 *)ctrl;
- u8 ret = 0;
- u8 i = 0;
-
- fusb300_rdcxf(fusb300, p, 8);
- fusb300->ep0_dir = ctrl->bRequestType & USB_DIR_IN;
- fusb300->ep0_length = ctrl->wLength;
-
- /* check request */
- if ((ctrl->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
- switch (ctrl->bRequest) {
- case USB_REQ_GET_STATUS:
- get_status(fusb300, ctrl);
- break;
- case USB_REQ_CLEAR_FEATURE:
- clear_feature(fusb300, ctrl);
- break;
- case USB_REQ_SET_FEATURE:
- set_feature(fusb300, ctrl);
- break;
- case USB_REQ_SET_ADDRESS:
- set_address(fusb300, ctrl);
- break;
- case USB_REQ_SET_CONFIGURATION:
- fusb300_enable_bit(fusb300, FUSB300_OFFSET_DAR,
- FUSB300_DAR_SETCONFG);
- /* clear sequence number */
- for (i = 1; i <= FUSB300_MAX_NUM_EP; i++)
- fusb300_clear_seqnum(fusb300, i);
- fusb300->reenum = 1;
- ret = 1;
- break;
- default:
- ret = 1;
- break;
- }
- } else
- ret = 1;
-
- return ret;
-}
-
-static void done(struct fusb300_ep *ep, struct fusb300_request *req,
- int status)
-{
- list_del_init(&req->queue);
-
- /* don't modify queue heads during completion callback */
- if (ep->fusb300->gadget.speed == USB_SPEED_UNKNOWN)
- req->req.status = -ESHUTDOWN;
- else
- req->req.status = status;
-
- spin_unlock(&ep->fusb300->lock);
- usb_gadget_giveback_request(&ep->ep, &req->req);
- spin_lock(&ep->fusb300->lock);
-
- if (ep->epnum) {
- disable_fifo_int(ep);
- if (!list_empty(&ep->queue))
- enable_fifo_int(ep);
- } else
- fusb300_set_cxdone(ep->fusb300);
-}
-
-static void fusb300_fill_idma_prdtbl(struct fusb300_ep *ep, dma_addr_t d,
- u32 len)
-{
- u32 value;
- u32 reg;
-
- /* wait SW owner */
- do {
- reg = ioread32(ep->fusb300->reg +
- FUSB300_OFFSET_EPPRD_W0(ep->epnum));
- reg &= FUSB300_EPPRD0_H;
- } while (reg);
-
- iowrite32(d, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W1(ep->epnum));
-
- value = FUSB300_EPPRD0_BTC(len) | FUSB300_EPPRD0_H |
- FUSB300_EPPRD0_F | FUSB300_EPPRD0_L | FUSB300_EPPRD0_I;
- iowrite32(value, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W0(ep->epnum));
-
- iowrite32(0x0, ep->fusb300->reg + FUSB300_OFFSET_EPPRD_W2(ep->epnum));
-
- fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_EPPRDRDY,
- FUSB300_EPPRDR_EP_PRD_RDY(ep->epnum));
-}
-
-static void fusb300_wait_idma_finished(struct fusb300_ep *ep)
-{
- u32 reg;
-
- do {
- reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_IGR1);
- if ((reg & FUSB300_IGR1_VBUS_CHG_INT) ||
- (reg & FUSB300_IGR1_WARM_RST_INT) ||
- (reg & FUSB300_IGR1_HOT_RST_INT) ||
- (reg & FUSB300_IGR1_USBRST_INT)
- )
- goto IDMA_RESET;
- reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_IGR0);
- reg &= FUSB300_IGR0_EPn_PRD_INT(ep->epnum);
- } while (!reg);
-
- fusb300_clear_int(ep->fusb300, FUSB300_OFFSET_IGR0,
- FUSB300_IGR0_EPn_PRD_INT(ep->epnum));
- return;
-
-IDMA_RESET:
- reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_IGER0);
- reg &= ~FUSB300_IGER0_EEPn_PRD_INT(ep->epnum);
- iowrite32(reg, ep->fusb300->reg + FUSB300_OFFSET_IGER0);
-}
-
-static void fusb300_set_idma(struct fusb300_ep *ep,
- struct fusb300_request *req)
-{
- int ret;
-
- ret = usb_gadget_map_request(&ep->fusb300->gadget,
- &req->req, DMA_TO_DEVICE);
- if (ret)
- return;
-
- fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_IGER0,
- FUSB300_IGER0_EEPn_PRD_INT(ep->epnum));
-
- fusb300_fill_idma_prdtbl(ep, req->req.dma, req->req.length);
- /* check idma is done */
- fusb300_wait_idma_finished(ep);
-
- usb_gadget_unmap_request(&ep->fusb300->gadget,
- &req->req, DMA_TO_DEVICE);
-}
-
-static void in_ep_fifo_handler(struct fusb300_ep *ep)
-{
- struct fusb300_request *req = list_entry(ep->queue.next,
- struct fusb300_request, queue);
-
- if (req->req.length)
- fusb300_set_idma(ep, req);
- done(ep, req, 0);
-}
-
-static void out_ep_fifo_handler(struct fusb300_ep *ep)
-{
- struct fusb300 *fusb300 = ep->fusb300;
- struct fusb300_request *req = list_entry(ep->queue.next,
- struct fusb300_request, queue);
- u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_EPFFR(ep->epnum));
- u32 length = reg & FUSB300_FFR_BYCNT;
-
- fusb300_rdfifo(ep, req, length);
-
- /* finish out transfer */
- if ((req->req.length == req->req.actual) || (length < ep->ep.maxpacket))
- done(ep, req, 0);
-}
-
-static void check_device_mode(struct fusb300 *fusb300)
-{
- u32 reg = ioread32(fusb300->reg + FUSB300_OFFSET_GCR);
-
- switch (reg & FUSB300_GCR_DEVEN_MSK) {
- case FUSB300_GCR_DEVEN_SS:
- fusb300->gadget.speed = USB_SPEED_SUPER;
- break;
- case FUSB300_GCR_DEVEN_HS:
- fusb300->gadget.speed = USB_SPEED_HIGH;
- break;
- case FUSB300_GCR_DEVEN_FS:
- fusb300->gadget.speed = USB_SPEED_FULL;
- break;
- default:
- fusb300->gadget.speed = USB_SPEED_UNKNOWN;
- break;
- }
- printk(KERN_INFO "dev_mode = %d\n", (reg & FUSB300_GCR_DEVEN_MSK));
-}
-
-
-static void fusb300_ep0out(struct fusb300 *fusb300)
-{
- struct fusb300_ep *ep = fusb300->ep[0];
- u32 reg;
-
- if (!list_empty(&ep->queue)) {
- struct fusb300_request *req;
-
- req = list_first_entry(&ep->queue,
- struct fusb300_request, queue);
- if (req->req.length)
- fusb300_rdcxf(ep->fusb300, req->req.buf,
- req->req.length);
- done(ep, req, 0);
- reg = ioread32(fusb300->reg + FUSB300_OFFSET_IGER1);
- reg &= ~FUSB300_IGER1_CX_OUT_INT;
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_IGER1);
- } else
- pr_err("%s : empty queue\n", __func__);
-}
-
-static void fusb300_ep0in(struct fusb300 *fusb300)
-{
- struct fusb300_request *req;
- struct fusb300_ep *ep = fusb300->ep[0];
-
- if ((!list_empty(&ep->queue)) && (fusb300->ep0_dir)) {
- req = list_entry(ep->queue.next,
- struct fusb300_request, queue);
- if (req->req.length)
- fusb300_wrcxf(ep, req);
- if ((req->req.length - req->req.actual) < ep->ep.maxpacket)
- done(ep, req, 0);
- } else
- fusb300_set_cxdone(fusb300);
-}
-
-static void fusb300_grp2_handler(void)
-{
-}
-
-static void fusb300_grp3_handler(void)
-{
-}
-
-static void fusb300_grp4_handler(void)
-{
-}
-
-static void fusb300_grp5_handler(void)
-{
-}
-
-static irqreturn_t fusb300_irq(int irq, void *_fusb300)
-{
- struct fusb300 *fusb300 = _fusb300;
- u32 int_grp1 = ioread32(fusb300->reg + FUSB300_OFFSET_IGR1);
- u32 int_grp1_en = ioread32(fusb300->reg + FUSB300_OFFSET_IGER1);
- u32 int_grp0 = ioread32(fusb300->reg + FUSB300_OFFSET_IGR0);
- u32 int_grp0_en = ioread32(fusb300->reg + FUSB300_OFFSET_IGER0);
- struct usb_ctrlrequest ctrl;
- u8 in;
- u32 reg;
- int i;
-
- spin_lock(&fusb300->lock);
-
- int_grp1 &= int_grp1_en;
- int_grp0 &= int_grp0_en;
-
- if (int_grp1 & FUSB300_IGR1_WARM_RST_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_WARM_RST_INT);
- printk(KERN_INFO"fusb300_warmreset\n");
- fusb300_reset();
- }
-
- if (int_grp1 & FUSB300_IGR1_HOT_RST_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_HOT_RST_INT);
- printk(KERN_INFO"fusb300_hotreset\n");
- fusb300_reset();
- }
-
- if (int_grp1 & FUSB300_IGR1_USBRST_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_USBRST_INT);
- fusb300_reset();
- }
- /* COMABT_INT has a highest priority */
-
- if (int_grp1 & FUSB300_IGR1_CX_COMABT_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_CX_COMABT_INT);
- printk(KERN_INFO"fusb300_ep0abt\n");
- }
-
- if (int_grp1 & FUSB300_IGR1_VBUS_CHG_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_VBUS_CHG_INT);
- printk(KERN_INFO"fusb300_vbus_change\n");
- }
-
- if (int_grp1 & FUSB300_IGR1_U3_EXIT_FAIL_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_U3_EXIT_FAIL_INT);
- }
-
- if (int_grp1 & FUSB300_IGR1_U2_EXIT_FAIL_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_U2_EXIT_FAIL_INT);
- }
-
- if (int_grp1 & FUSB300_IGR1_U1_EXIT_FAIL_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_U1_EXIT_FAIL_INT);
- }
-
- if (int_grp1 & FUSB300_IGR1_U2_ENTRY_FAIL_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_U2_ENTRY_FAIL_INT);
- }
-
- if (int_grp1 & FUSB300_IGR1_U1_ENTRY_FAIL_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_U1_ENTRY_FAIL_INT);
- }
-
- if (int_grp1 & FUSB300_IGR1_U3_EXIT_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_U3_EXIT_INT);
- printk(KERN_INFO "FUSB300_IGR1_U3_EXIT_INT\n");
- }
-
- if (int_grp1 & FUSB300_IGR1_U2_EXIT_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_U2_EXIT_INT);
- printk(KERN_INFO "FUSB300_IGR1_U2_EXIT_INT\n");
- }
-
- if (int_grp1 & FUSB300_IGR1_U1_EXIT_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_U1_EXIT_INT);
- printk(KERN_INFO "FUSB300_IGR1_U1_EXIT_INT\n");
- }
-
- if (int_grp1 & FUSB300_IGR1_U3_ENTRY_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_U3_ENTRY_INT);
- printk(KERN_INFO "FUSB300_IGR1_U3_ENTRY_INT\n");
- fusb300_enable_bit(fusb300, FUSB300_OFFSET_SSCR1,
- FUSB300_SSCR1_GO_U3_DONE);
- }
-
- if (int_grp1 & FUSB300_IGR1_U2_ENTRY_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_U2_ENTRY_INT);
- printk(KERN_INFO "FUSB300_IGR1_U2_ENTRY_INT\n");
- }
-
- if (int_grp1 & FUSB300_IGR1_U1_ENTRY_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_U1_ENTRY_INT);
- printk(KERN_INFO "FUSB300_IGR1_U1_ENTRY_INT\n");
- }
-
- if (int_grp1 & FUSB300_IGR1_RESM_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_RESM_INT);
- printk(KERN_INFO "fusb300_resume\n");
- }
-
- if (int_grp1 & FUSB300_IGR1_SUSP_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_SUSP_INT);
- printk(KERN_INFO "fusb300_suspend\n");
- }
-
- if (int_grp1 & FUSB300_IGR1_HS_LPM_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_HS_LPM_INT);
- printk(KERN_INFO "fusb300_HS_LPM_INT\n");
- }
-
- if (int_grp1 & FUSB300_IGR1_DEV_MODE_CHG_INT) {
- fusb300_clear_int(fusb300, FUSB300_OFFSET_IGR1,
- FUSB300_IGR1_DEV_MODE_CHG_INT);
- check_device_mode(fusb300);
- }
-
- if (int_grp1 & FUSB300_IGR1_CX_COMFAIL_INT) {
- fusb300_set_cxstall(fusb300);
- printk(KERN_INFO "fusb300_ep0fail\n");
- }
-
- if (int_grp1 & FUSB300_IGR1_CX_SETUP_INT) {
- printk(KERN_INFO "fusb300_ep0setup\n");
- if (setup_packet(fusb300, &ctrl)) {
- spin_unlock(&fusb300->lock);
- if (fusb300->driver->setup(&fusb300->gadget, &ctrl) < 0)
- fusb300_set_cxstall(fusb300);
- spin_lock(&fusb300->lock);
- }
- }
-
- if (int_grp1 & FUSB300_IGR1_CX_CMDEND_INT)
- printk(KERN_INFO "fusb300_cmdend\n");
-
-
- if (int_grp1 & FUSB300_IGR1_CX_OUT_INT) {
- printk(KERN_INFO "fusb300_cxout\n");
- fusb300_ep0out(fusb300);
- }
-
- if (int_grp1 & FUSB300_IGR1_CX_IN_INT) {
- printk(KERN_INFO "fusb300_cxin\n");
- fusb300_ep0in(fusb300);
- }
-
- if (int_grp1 & FUSB300_IGR1_INTGRP5)
- fusb300_grp5_handler();
-
- if (int_grp1 & FUSB300_IGR1_INTGRP4)
- fusb300_grp4_handler();
-
- if (int_grp1 & FUSB300_IGR1_INTGRP3)
- fusb300_grp3_handler();
-
- if (int_grp1 & FUSB300_IGR1_INTGRP2)
- fusb300_grp2_handler();
-
- if (int_grp0) {
- for (i = 1; i < FUSB300_MAX_NUM_EP; i++) {
- if (int_grp0 & FUSB300_IGR0_EPn_FIFO_INT(i)) {
- reg = ioread32(fusb300->reg +
- FUSB300_OFFSET_EPSET1(i));
- in = (reg & FUSB300_EPSET1_DIRIN) ? 1 : 0;
- if (in)
- in_ep_fifo_handler(fusb300->ep[i]);
- else
- out_ep_fifo_handler(fusb300->ep[i]);
- }
- }
- }
-
- spin_unlock(&fusb300->lock);
-
- return IRQ_HANDLED;
-}
-
-static void fusb300_set_u2_timeout(struct fusb300 *fusb300,
- u32 time)
-{
- u32 reg;
-
- reg = ioread32(fusb300->reg + FUSB300_OFFSET_TT);
- reg &= ~0xff;
- reg |= FUSB300_SSCR2_U2TIMEOUT(time);
-
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_TT);
-}
-
-static void fusb300_set_u1_timeout(struct fusb300 *fusb300,
- u32 time)
-{
- u32 reg;
-
- reg = ioread32(fusb300->reg + FUSB300_OFFSET_TT);
- reg &= ~(0xff << 8);
- reg |= FUSB300_SSCR2_U1TIMEOUT(time);
-
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_TT);
-}
-
-static void init_controller(struct fusb300 *fusb300)
-{
- u32 reg;
- u32 mask = 0;
- u32 val = 0;
-
- /* split on */
- mask = val = FUSB300_AHBBCR_S0_SPLIT_ON | FUSB300_AHBBCR_S1_SPLIT_ON;
- reg = ioread32(fusb300->reg + FUSB300_OFFSET_AHBCR);
- reg &= ~mask;
- reg |= val;
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_AHBCR);
-
- /* enable high-speed LPM */
- mask = val = FUSB300_HSCR_HS_LPM_PERMIT;
- reg = ioread32(fusb300->reg + FUSB300_OFFSET_HSCR);
- reg &= ~mask;
- reg |= val;
- iowrite32(reg, fusb300->reg + FUSB300_OFFSET_HSCR);
-
- /*set u1 u2 timer*/
- fusb300_set_u2_timeout(fusb300, 0xff);
- fusb300_set_u1_timeout(fusb300, 0xff);
-
- /* enable all grp1 interrupt */
- iowrite32(0xcfffff9f, fusb300->reg + FUSB300_OFFSET_IGER1);
-}
-/*------------------------------------------------------------------------*/
-static int fusb300_udc_start(struct usb_gadget *g,
- struct usb_gadget_driver *driver)
-{
- struct fusb300 *fusb300 = to_fusb300(g);
-
- /* hook up the driver */
- fusb300->driver = driver;
-
- return 0;
-}
-
-static int fusb300_udc_stop(struct usb_gadget *g)
-{
- struct fusb300 *fusb300 = to_fusb300(g);
-
- init_controller(fusb300);
- fusb300->driver = NULL;
-
- return 0;
-}
-/*--------------------------------------------------------------------------*/
-
-static int fusb300_udc_pullup(struct usb_gadget *_gadget, int is_active)
-{
- return 0;
-}
-
-static const struct usb_gadget_ops fusb300_gadget_ops = {
- .pullup = fusb300_udc_pullup,
- .udc_start = fusb300_udc_start,
- .udc_stop = fusb300_udc_stop,
-};
-
-static void fusb300_remove(struct platform_device *pdev)
-{
- struct fusb300 *fusb300 = platform_get_drvdata(pdev);
- int i;
-
- usb_del_gadget_udc(&fusb300->gadget);
- iounmap(fusb300->reg);
- free_irq(platform_get_irq(pdev, 0), fusb300);
- free_irq(platform_get_irq(pdev, 1), fusb300);
-
- fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req);
- for (i = 0; i < FUSB300_MAX_NUM_EP; i++)
- kfree(fusb300->ep[i]);
- kfree(fusb300);
-}
-
-static int fusb300_probe(struct platform_device *pdev)
-{
- struct resource *res, *ires, *ires1;
- void __iomem *reg = NULL;
- struct fusb300 *fusb300 = NULL;
- struct fusb300_ep *_ep[FUSB300_MAX_NUM_EP];
- int ret = 0;
- int i;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- ret = -ENODEV;
- pr_err("platform_get_resource error.\n");
- goto clean_up;
- }
-
- ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!ires) {
- ret = -ENODEV;
- dev_err(&pdev->dev,
- "platform_get_resource IORESOURCE_IRQ error.\n");
- goto clean_up;
- }
-
- ires1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
- if (!ires1) {
- ret = -ENODEV;
- dev_err(&pdev->dev,
- "platform_get_resource IORESOURCE_IRQ 1 error.\n");
- goto clean_up;
- }
-
- reg = ioremap(res->start, resource_size(res));
- if (reg == NULL) {
- ret = -ENOMEM;
- pr_err("ioremap error.\n");
- goto clean_up;
- }
-
- /* initialize udc */
- fusb300 = kzalloc(sizeof(struct fusb300), GFP_KERNEL);
- if (fusb300 == NULL) {
- ret = -ENOMEM;
- goto clean_up;
- }
-
- for (i = 0; i < FUSB300_MAX_NUM_EP; i++) {
- _ep[i] = kzalloc(sizeof(struct fusb300_ep), GFP_KERNEL);
- if (_ep[i] == NULL) {
- ret = -ENOMEM;
- goto clean_up;
- }
- fusb300->ep[i] = _ep[i];
- }
-
- spin_lock_init(&fusb300->lock);
-
- platform_set_drvdata(pdev, fusb300);
-
- fusb300->gadget.ops = &fusb300_gadget_ops;
-
- fusb300->gadget.max_speed = USB_SPEED_HIGH;
- fusb300->gadget.name = udc_name;
- fusb300->reg = reg;
-
- ret = request_irq(ires->start, fusb300_irq, IRQF_SHARED,
- udc_name, fusb300);
- if (ret < 0) {
- pr_err("request_irq error (%d)\n", ret);
- goto clean_up;
- }
-
- ret = request_irq(ires1->start, fusb300_irq,
- IRQF_SHARED, udc_name, fusb300);
- if (ret < 0) {
- pr_err("request_irq1 error (%d)\n", ret);
- goto err_request_irq1;
- }
-
- INIT_LIST_HEAD(&fusb300->gadget.ep_list);
-
- for (i = 0; i < FUSB300_MAX_NUM_EP ; i++) {
- struct fusb300_ep *ep = fusb300->ep[i];
-
- if (i != 0) {
- INIT_LIST_HEAD(&fusb300->ep[i]->ep.ep_list);
- list_add_tail(&fusb300->ep[i]->ep.ep_list,
- &fusb300->gadget.ep_list);
- }
- ep->fusb300 = fusb300;
- INIT_LIST_HEAD(&ep->queue);
- ep->ep.name = fusb300_ep_name[i];
- ep->ep.ops = &fusb300_ep_ops;
- usb_ep_set_maxpacket_limit(&ep->ep, HS_BULK_MAX_PACKET_SIZE);
-
- if (i == 0) {
- ep->ep.caps.type_control = true;
- } else {
- ep->ep.caps.type_iso = true;
- ep->ep.caps.type_bulk = true;
- ep->ep.caps.type_int = true;
- }
-
- ep->ep.caps.dir_in = true;
- ep->ep.caps.dir_out = true;
- }
- usb_ep_set_maxpacket_limit(&fusb300->ep[0]->ep, HS_CTL_MAX_PACKET_SIZE);
- fusb300->ep[0]->epnum = 0;
- fusb300->gadget.ep0 = &fusb300->ep[0]->ep;
- INIT_LIST_HEAD(&fusb300->gadget.ep0->ep_list);
-
- fusb300->ep0_req = fusb300_alloc_request(&fusb300->ep[0]->ep,
- GFP_KERNEL);
- if (fusb300->ep0_req == NULL) {
- ret = -ENOMEM;
- goto err_alloc_request;
- }
-
- init_controller(fusb300);
- ret = usb_add_gadget_udc(&pdev->dev, &fusb300->gadget);
- if (ret)
- goto err_add_udc;
-
- dev_info(&pdev->dev, "version %s\n", DRIVER_VERSION);
-
- return 0;
-
-err_add_udc:
- fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req);
-
-err_alloc_request:
- free_irq(ires1->start, fusb300);
-
-err_request_irq1:
- free_irq(ires->start, fusb300);
-
-clean_up:
- if (fusb300) {
- if (fusb300->ep0_req)
- fusb300_free_request(&fusb300->ep[0]->ep,
- fusb300->ep0_req);
- for (i = 0; i < FUSB300_MAX_NUM_EP; i++)
- kfree(fusb300->ep[i]);
- kfree(fusb300);
- }
- if (reg)
- iounmap(reg);
-
- return ret;
-}
-
-static struct platform_driver fusb300_driver = {
- .probe = fusb300_probe,
- .remove = fusb300_remove,
- .driver = {
- .name = udc_name,
- },
-};
-
-module_platform_driver(fusb300_driver);
diff --git a/drivers/usb/gadget/udc/fusb300_udc.h b/drivers/usb/gadget/udc/fusb300_udc.h
deleted file mode 100644
index eb3d6d379ba7..000000000000
--- a/drivers/usb/gadget/udc/fusb300_udc.h
+++ /dev/null
@@ -1,675 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Fusb300 UDC (USB gadget)
- *
- * Copyright (C) 2010 Faraday Technology Corp.
- *
- * Author : Yuan-hsin Chen <yhchen@...aday-tech.com>
- */
-
-
-#ifndef __FUSB300_UDC_H__
-#define __FUSB300_UDC_H__
-
-#include <linux/kernel.h>
-
-#define FUSB300_OFFSET_GCR 0x00
-#define FUSB300_OFFSET_GTM 0x04
-#define FUSB300_OFFSET_DAR 0x08
-#define FUSB300_OFFSET_CSR 0x0C
-#define FUSB300_OFFSET_CXPORT 0x10
-#define FUSB300_OFFSET_EPSET0(n) (0x20 + (n - 1) * 0x30)
-#define FUSB300_OFFSET_EPSET1(n) (0x24 + (n - 1) * 0x30)
-#define FUSB300_OFFSET_EPSET2(n) (0x28 + (n - 1) * 0x30)
-#define FUSB300_OFFSET_EPFFR(n) (0x2c + (n - 1) * 0x30)
-#define FUSB300_OFFSET_EPSTRID(n) (0x40 + (n - 1) * 0x30)
-#define FUSB300_OFFSET_HSPTM 0x300
-#define FUSB300_OFFSET_HSCR 0x304
-#define FUSB300_OFFSET_SSCR0 0x308
-#define FUSB300_OFFSET_SSCR1 0x30C
-#define FUSB300_OFFSET_TT 0x310
-#define FUSB300_OFFSET_DEVNOTF 0x314
-#define FUSB300_OFFSET_DNC1 0x318
-#define FUSB300_OFFSET_CS 0x31C
-#define FUSB300_OFFSET_SOF 0x324
-#define FUSB300_OFFSET_EFCS 0x328
-#define FUSB300_OFFSET_IGR0 0x400
-#define FUSB300_OFFSET_IGR1 0x404
-#define FUSB300_OFFSET_IGR2 0x408
-#define FUSB300_OFFSET_IGR3 0x40C
-#define FUSB300_OFFSET_IGR4 0x410
-#define FUSB300_OFFSET_IGR5 0x414
-#define FUSB300_OFFSET_IGER0 0x420
-#define FUSB300_OFFSET_IGER1 0x424
-#define FUSB300_OFFSET_IGER2 0x428
-#define FUSB300_OFFSET_IGER3 0x42C
-#define FUSB300_OFFSET_IGER4 0x430
-#define FUSB300_OFFSET_IGER5 0x434
-#define FUSB300_OFFSET_DMAHMER 0x500
-#define FUSB300_OFFSET_EPPRDRDY 0x504
-#define FUSB300_OFFSET_DMAEPMR 0x508
-#define FUSB300_OFFSET_DMAENR 0x50C
-#define FUSB300_OFFSET_DMAAPR 0x510
-#define FUSB300_OFFSET_AHBCR 0x514
-#define FUSB300_OFFSET_EPPRD_W0(n) (0x520 + (n - 1) * 0x10)
-#define FUSB300_OFFSET_EPPRD_W1(n) (0x524 + (n - 1) * 0x10)
-#define FUSB300_OFFSET_EPPRD_W2(n) (0x528 + (n - 1) * 0x10)
-#define FUSB300_OFFSET_EPRD_PTR(n) (0x52C + (n - 1) * 0x10)
-#define FUSB300_OFFSET_BUFDBG_START 0x800
-#define FUSB300_OFFSET_BUFDBG_END 0xBFC
-#define FUSB300_OFFSET_EPPORT(n) (0x1010 + (n - 1) * 0x10)
-
-/*
- * * Global Control Register (offset = 000H)
- * */
-#define FUSB300_GCR_SF_RST (1 << 8)
-#define FUSB300_GCR_VBUS_STATUS (1 << 7)
-#define FUSB300_GCR_FORCE_HS_SUSP (1 << 6)
-#define FUSB300_GCR_SYNC_FIFO1_CLR (1 << 5)
-#define FUSB300_GCR_SYNC_FIFO0_CLR (1 << 4)
-#define FUSB300_GCR_FIFOCLR (1 << 3)
-#define FUSB300_GCR_GLINTEN (1 << 2)
-#define FUSB300_GCR_DEVEN_FS 0x3
-#define FUSB300_GCR_DEVEN_HS 0x2
-#define FUSB300_GCR_DEVEN_SS 0x1
-#define FUSB300_GCR_DEVDIS 0x0
-#define FUSB300_GCR_DEVEN_MSK 0x3
-
-
-/*
- * *Global Test Mode (offset = 004H)
- * */
-#define FUSB300_GTM_TST_DIS_SOFGEN (1 << 16)
-#define FUSB300_GTM_TST_CUR_EP_ENTRY(n) ((n & 0xF) << 12)
-#define FUSB300_GTM_TST_EP_ENTRY(n) ((n & 0xF) << 8)
-#define FUSB300_GTM_TST_EP_NUM(n) ((n & 0xF) << 4)
-#define FUSB300_GTM_TST_FIFO_DEG (1 << 1)
-#define FUSB300_GTM_TSTMODE (1 << 0)
-
-/*
- * * Device Address Register (offset = 008H)
- * */
-#define FUSB300_DAR_SETCONFG (1 << 7)
-#define FUSB300_DAR_DRVADDR(x) (x & 0x7F)
-#define FUSB300_DAR_DRVADDR_MSK 0x7F
-
-/*
- * *Control Transfer Configuration and Status Register
- * (CX_Config_Status, offset = 00CH)
- * */
-#define FUSB300_CSR_LEN(x) ((x & 0xFFFF) << 8)
-#define FUSB300_CSR_LEN_MSK (0xFFFF << 8)
-#define FUSB300_CSR_EMP (1 << 4)
-#define FUSB300_CSR_FUL (1 << 3)
-#define FUSB300_CSR_CLR (1 << 2)
-#define FUSB300_CSR_STL (1 << 1)
-#define FUSB300_CSR_DONE (1 << 0)
-
-/*
- * * EPn Setting 0 (EPn_SET0, offset = 020H+(n-1)*30H, n=1~15 )
- * */
-#define FUSB300_EPSET0_STL_CLR (1 << 3)
-#define FUSB300_EPSET0_CLRSEQNUM (1 << 2)
-#define FUSB300_EPSET0_STL (1 << 0)
-
-/*
- * * EPn Setting 1 (EPn_SET1, offset = 024H+(n-1)*30H, n=1~15)
- * */
-#define FUSB300_EPSET1_START_ENTRY(x) ((x & 0xFF) << 24)
-#define FUSB300_EPSET1_START_ENTRY_MSK (0xFF << 24)
-#define FUSB300_EPSET1_FIFOENTRY(x) ((x & 0x1F) << 12)
-#define FUSB300_EPSET1_FIFOENTRY_MSK (0x1f << 12)
-#define FUSB300_EPSET1_INTERVAL(x) ((x & 0x7) << 6)
-#define FUSB300_EPSET1_BWNUM(x) ((x & 0x3) << 4)
-#define FUSB300_EPSET1_TYPEISO (1 << 2)
-#define FUSB300_EPSET1_TYPEBLK (2 << 2)
-#define FUSB300_EPSET1_TYPEINT (3 << 2)
-#define FUSB300_EPSET1_TYPE(x) ((x & 0x3) << 2)
-#define FUSB300_EPSET1_TYPE_MSK (0x3 << 2)
-#define FUSB300_EPSET1_DIROUT (0 << 1)
-#define FUSB300_EPSET1_DIRIN (1 << 1)
-#define FUSB300_EPSET1_DIR(x) ((x & 0x1) << 1)
-#define FUSB300_EPSET1_DIRIN (1 << 1)
-#define FUSB300_EPSET1_DIR_MSK ((0x1) << 1)
-#define FUSB300_EPSET1_ACTDIS 0
-#define FUSB300_EPSET1_ACTEN 1
-
-/*
- * *EPn Setting 2 (EPn_SET2, offset = 028H+(n-1)*30H, n=1~15)
- * */
-#define FUSB300_EPSET2_ADDROFS(x) ((x & 0x7FFF) << 16)
-#define FUSB300_EPSET2_ADDROFS_MSK (0x7fff << 16)
-#define FUSB300_EPSET2_MPS(x) (x & 0x7FF)
-#define FUSB300_EPSET2_MPS_MSK 0x7FF
-
-/*
- * * EPn FIFO Register (offset = 2cH+(n-1)*30H)
- * */
-#define FUSB300_FFR_RST (1 << 31)
-#define FUSB300_FF_FUL (1 << 30)
-#define FUSB300_FF_EMPTY (1 << 29)
-#define FUSB300_FFR_BYCNT 0x1FFFF
-
-/*
- * *EPn Stream ID (EPn_STR_ID, offset = 040H+(n-1)*30H, n=1~15)
- * */
-#define FUSB300_STRID_STREN (1 << 16)
-#define FUSB300_STRID_STRID(x) (x & 0xFFFF)
-
-/*
- * *HS PHY Test Mode (offset = 300H)
- * */
-#define FUSB300_HSPTM_TSTPKDONE (1 << 4)
-#define FUSB300_HSPTM_TSTPKT (1 << 3)
-#define FUSB300_HSPTM_TSTSET0NAK (1 << 2)
-#define FUSB300_HSPTM_TSTKSTA (1 << 1)
-#define FUSB300_HSPTM_TSTJSTA (1 << 0)
-
-/*
- * *HS Control Register (offset = 304H)
- * */
-#define FUSB300_HSCR_HS_LPM_PERMIT (1 << 8)
-#define FUSB300_HSCR_HS_LPM_RMWKUP (1 << 7)
-#define FUSB300_HSCR_CAP_LPM_RMWKUP (1 << 6)
-#define FUSB300_HSCR_HS_GOSUSP (1 << 5)
-#define FUSB300_HSCR_HS_GORMWKU (1 << 4)
-#define FUSB300_HSCR_CAP_RMWKUP (1 << 3)
-#define FUSB300_HSCR_IDLECNT_0MS 0
-#define FUSB300_HSCR_IDLECNT_1MS 1
-#define FUSB300_HSCR_IDLECNT_2MS 2
-#define FUSB300_HSCR_IDLECNT_3MS 3
-#define FUSB300_HSCR_IDLECNT_4MS 4
-#define FUSB300_HSCR_IDLECNT_5MS 5
-#define FUSB300_HSCR_IDLECNT_6MS 6
-#define FUSB300_HSCR_IDLECNT_7MS 7
-
-/*
- * * SS Controller Register 0 (offset = 308H)
- * */
-#define FUSB300_SSCR0_MAX_INTERVAL(x) ((x & 0x7) << 4)
-#define FUSB300_SSCR0_U2_FUN_EN (1 << 1)
-#define FUSB300_SSCR0_U1_FUN_EN (1 << 0)
-
-/*
- * * SS Controller Register 1 (offset = 30CH)
- * */
-#define FUSB300_SSCR1_GO_U3_DONE (1 << 8)
-#define FUSB300_SSCR1_TXDEEMPH_LEVEL (1 << 7)
-#define FUSB300_SSCR1_DIS_SCRMB (1 << 6)
-#define FUSB300_SSCR1_FORCE_RECOVERY (1 << 5)
-#define FUSB300_SSCR1_U3_WAKEUP_EN (1 << 4)
-#define FUSB300_SSCR1_U2_EXIT_EN (1 << 3)
-#define FUSB300_SSCR1_U1_EXIT_EN (1 << 2)
-#define FUSB300_SSCR1_U2_ENTRY_EN (1 << 1)
-#define FUSB300_SSCR1_U1_ENTRY_EN (1 << 0)
-
-/*
- * *SS Controller Register 2 (offset = 310H)
- * */
-#define FUSB300_SSCR2_SS_TX_SWING (1 << 25)
-#define FUSB300_SSCR2_FORCE_LINKPM_ACCEPT (1 << 24)
-#define FUSB300_SSCR2_U2_INACT_TIMEOUT(x) ((x & 0xFF) << 16)
-#define FUSB300_SSCR2_U1TIMEOUT(x) ((x & 0xFF) << 8)
-#define FUSB300_SSCR2_U2TIMEOUT(x) (x & 0xFF)
-
-/*
- * *SS Device Notification Control (DEV_NOTF, offset = 314H)
- * */
-#define FUSB300_DEVNOTF_CONTEXT0(x) ((x & 0xFFFFFF) << 8)
-#define FUSB300_DEVNOTF_TYPE_DIS 0
-#define FUSB300_DEVNOTF_TYPE_FUNCWAKE 1
-#define FUSB300_DEVNOTF_TYPE_LTM 2
-#define FUSB300_DEVNOTF_TYPE_BUSINT_ADJMSG 3
-
-/*
- * *BFM Arbiter Priority Register (BFM_ARB offset = 31CH)
- * */
-#define FUSB300_BFMARB_ARB_M1 (1 << 3)
-#define FUSB300_BFMARB_ARB_M0 (1 << 2)
-#define FUSB300_BFMARB_ARB_S1 (1 << 1)
-#define FUSB300_BFMARB_ARB_S0 1
-
-/*
- * *Vendor Specific IO Control Register (offset = 320H)
- * */
-#define FUSB300_VSIC_VCTLOAD_N (1 << 8)
-#define FUSB300_VSIC_VCTL(x) (x & 0x3F)
-
-/*
- * *SOF Mask Timer (offset = 324H)
- * */
-#define FUSB300_SOF_MASK_TIMER_HS 0x044c
-#define FUSB300_SOF_MASK_TIMER_FS 0x2710
-
-/*
- * *Error Flag and Control Status (offset = 328H)
- * */
-#define FUSB300_EFCS_PM_STATE_U3 3
-#define FUSB300_EFCS_PM_STATE_U2 2
-#define FUSB300_EFCS_PM_STATE_U1 1
-#define FUSB300_EFCS_PM_STATE_U0 0
-
-/*
- * *Interrupt Group 0 Register (offset = 400H)
- * */
-#define FUSB300_IGR0_EP15_PRD_INT (1 << 31)
-#define FUSB300_IGR0_EP14_PRD_INT (1 << 30)
-#define FUSB300_IGR0_EP13_PRD_INT (1 << 29)
-#define FUSB300_IGR0_EP12_PRD_INT (1 << 28)
-#define FUSB300_IGR0_EP11_PRD_INT (1 << 27)
-#define FUSB300_IGR0_EP10_PRD_INT (1 << 26)
-#define FUSB300_IGR0_EP9_PRD_INT (1 << 25)
-#define FUSB300_IGR0_EP8_PRD_INT (1 << 24)
-#define FUSB300_IGR0_EP7_PRD_INT (1 << 23)
-#define FUSB300_IGR0_EP6_PRD_INT (1 << 22)
-#define FUSB300_IGR0_EP5_PRD_INT (1 << 21)
-#define FUSB300_IGR0_EP4_PRD_INT (1 << 20)
-#define FUSB300_IGR0_EP3_PRD_INT (1 << 19)
-#define FUSB300_IGR0_EP2_PRD_INT (1 << 18)
-#define FUSB300_IGR0_EP1_PRD_INT (1 << 17)
-#define FUSB300_IGR0_EPn_PRD_INT(n) (1 << (n + 16))
-
-#define FUSB300_IGR0_EP15_FIFO_INT (1 << 15)
-#define FUSB300_IGR0_EP14_FIFO_INT (1 << 14)
-#define FUSB300_IGR0_EP13_FIFO_INT (1 << 13)
-#define FUSB300_IGR0_EP12_FIFO_INT (1 << 12)
-#define FUSB300_IGR0_EP11_FIFO_INT (1 << 11)
-#define FUSB300_IGR0_EP10_FIFO_INT (1 << 10)
-#define FUSB300_IGR0_EP9_FIFO_INT (1 << 9)
-#define FUSB300_IGR0_EP8_FIFO_INT (1 << 8)
-#define FUSB300_IGR0_EP7_FIFO_INT (1 << 7)
-#define FUSB300_IGR0_EP6_FIFO_INT (1 << 6)
-#define FUSB300_IGR0_EP5_FIFO_INT (1 << 5)
-#define FUSB300_IGR0_EP4_FIFO_INT (1 << 4)
-#define FUSB300_IGR0_EP3_FIFO_INT (1 << 3)
-#define FUSB300_IGR0_EP2_FIFO_INT (1 << 2)
-#define FUSB300_IGR0_EP1_FIFO_INT (1 << 1)
-#define FUSB300_IGR0_EPn_FIFO_INT(n) (1 << n)
-
-/*
- * *Interrupt Group 1 Register (offset = 404H)
- * */
-#define FUSB300_IGR1_INTGRP5 (1 << 31)
-#define FUSB300_IGR1_VBUS_CHG_INT (1 << 30)
-#define FUSB300_IGR1_SYNF1_EMPTY_INT (1 << 29)
-#define FUSB300_IGR1_SYNF0_EMPTY_INT (1 << 28)
-#define FUSB300_IGR1_U3_EXIT_FAIL_INT (1 << 27)
-#define FUSB300_IGR1_U2_EXIT_FAIL_INT (1 << 26)
-#define FUSB300_IGR1_U1_EXIT_FAIL_INT (1 << 25)
-#define FUSB300_IGR1_U2_ENTRY_FAIL_INT (1 << 24)
-#define FUSB300_IGR1_U1_ENTRY_FAIL_INT (1 << 23)
-#define FUSB300_IGR1_U3_EXIT_INT (1 << 22)
-#define FUSB300_IGR1_U2_EXIT_INT (1 << 21)
-#define FUSB300_IGR1_U1_EXIT_INT (1 << 20)
-#define FUSB300_IGR1_U3_ENTRY_INT (1 << 19)
-#define FUSB300_IGR1_U2_ENTRY_INT (1 << 18)
-#define FUSB300_IGR1_U1_ENTRY_INT (1 << 17)
-#define FUSB300_IGR1_HOT_RST_INT (1 << 16)
-#define FUSB300_IGR1_WARM_RST_INT (1 << 15)
-#define FUSB300_IGR1_RESM_INT (1 << 14)
-#define FUSB300_IGR1_SUSP_INT (1 << 13)
-#define FUSB300_IGR1_HS_LPM_INT (1 << 12)
-#define FUSB300_IGR1_USBRST_INT (1 << 11)
-#define FUSB300_IGR1_DEV_MODE_CHG_INT (1 << 9)
-#define FUSB300_IGR1_CX_COMABT_INT (1 << 8)
-#define FUSB300_IGR1_CX_COMFAIL_INT (1 << 7)
-#define FUSB300_IGR1_CX_CMDEND_INT (1 << 6)
-#define FUSB300_IGR1_CX_OUT_INT (1 << 5)
-#define FUSB300_IGR1_CX_IN_INT (1 << 4)
-#define FUSB300_IGR1_CX_SETUP_INT (1 << 3)
-#define FUSB300_IGR1_INTGRP4 (1 << 2)
-#define FUSB300_IGR1_INTGRP3 (1 << 1)
-#define FUSB300_IGR1_INTGRP2 (1 << 0)
-
-/*
- * *Interrupt Group 2 Register (offset = 408H)
- * */
-#define FUSB300_IGR2_EP6_STR_ACCEPT_INT (1 << 29)
-#define FUSB300_IGR2_EP6_STR_RESUME_INT (1 << 28)
-#define FUSB300_IGR2_EP6_STR_REQ_INT (1 << 27)
-#define FUSB300_IGR2_EP6_STR_NOTRDY_INT (1 << 26)
-#define FUSB300_IGR2_EP6_STR_PRIME_INT (1 << 25)
-#define FUSB300_IGR2_EP5_STR_ACCEPT_INT (1 << 24)
-#define FUSB300_IGR2_EP5_STR_RESUME_INT (1 << 23)
-#define FUSB300_IGR2_EP5_STR_REQ_INT (1 << 22)
-#define FUSB300_IGR2_EP5_STR_NOTRDY_INT (1 << 21)
-#define FUSB300_IGR2_EP5_STR_PRIME_INT (1 << 20)
-#define FUSB300_IGR2_EP4_STR_ACCEPT_INT (1 << 19)
-#define FUSB300_IGR2_EP4_STR_RESUME_INT (1 << 18)
-#define FUSB300_IGR2_EP4_STR_REQ_INT (1 << 17)
-#define FUSB300_IGR2_EP4_STR_NOTRDY_INT (1 << 16)
-#define FUSB300_IGR2_EP4_STR_PRIME_INT (1 << 15)
-#define FUSB300_IGR2_EP3_STR_ACCEPT_INT (1 << 14)
-#define FUSB300_IGR2_EP3_STR_RESUME_INT (1 << 13)
-#define FUSB300_IGR2_EP3_STR_REQ_INT (1 << 12)
-#define FUSB300_IGR2_EP3_STR_NOTRDY_INT (1 << 11)
-#define FUSB300_IGR2_EP3_STR_PRIME_INT (1 << 10)
-#define FUSB300_IGR2_EP2_STR_ACCEPT_INT (1 << 9)
-#define FUSB300_IGR2_EP2_STR_RESUME_INT (1 << 8)
-#define FUSB300_IGR2_EP2_STR_REQ_INT (1 << 7)
-#define FUSB300_IGR2_EP2_STR_NOTRDY_INT (1 << 6)
-#define FUSB300_IGR2_EP2_STR_PRIME_INT (1 << 5)
-#define FUSB300_IGR2_EP1_STR_ACCEPT_INT (1 << 4)
-#define FUSB300_IGR2_EP1_STR_RESUME_INT (1 << 3)
-#define FUSB300_IGR2_EP1_STR_REQ_INT (1 << 2)
-#define FUSB300_IGR2_EP1_STR_NOTRDY_INT (1 << 1)
-#define FUSB300_IGR2_EP1_STR_PRIME_INT (1 << 0)
-
-#define FUSB300_IGR2_EP_STR_ACCEPT_INT(n) (1 << (5 * n - 1))
-#define FUSB300_IGR2_EP_STR_RESUME_INT(n) (1 << (5 * n - 2))
-#define FUSB300_IGR2_EP_STR_REQ_INT(n) (1 << (5 * n - 3))
-#define FUSB300_IGR2_EP_STR_NOTRDY_INT(n) (1 << (5 * n - 4))
-#define FUSB300_IGR2_EP_STR_PRIME_INT(n) (1 << (5 * n - 5))
-
-/*
- * *Interrupt Group 3 Register (offset = 40CH)
- * */
-#define FUSB300_IGR3_EP12_STR_ACCEPT_INT (1 << 29)
-#define FUSB300_IGR3_EP12_STR_RESUME_INT (1 << 28)
-#define FUSB300_IGR3_EP12_STR_REQ_INT (1 << 27)
-#define FUSB300_IGR3_EP12_STR_NOTRDY_INT (1 << 26)
-#define FUSB300_IGR3_EP12_STR_PRIME_INT (1 << 25)
-#define FUSB300_IGR3_EP11_STR_ACCEPT_INT (1 << 24)
-#define FUSB300_IGR3_EP11_STR_RESUME_INT (1 << 23)
-#define FUSB300_IGR3_EP11_STR_REQ_INT (1 << 22)
-#define FUSB300_IGR3_EP11_STR_NOTRDY_INT (1 << 21)
-#define FUSB300_IGR3_EP11_STR_PRIME_INT (1 << 20)
-#define FUSB300_IGR3_EP10_STR_ACCEPT_INT (1 << 19)
-#define FUSB300_IGR3_EP10_STR_RESUME_INT (1 << 18)
-#define FUSB300_IGR3_EP10_STR_REQ_INT (1 << 17)
-#define FUSB300_IGR3_EP10_STR_NOTRDY_INT (1 << 16)
-#define FUSB300_IGR3_EP10_STR_PRIME_INT (1 << 15)
-#define FUSB300_IGR3_EP9_STR_ACCEPT_INT (1 << 14)
-#define FUSB300_IGR3_EP9_STR_RESUME_INT (1 << 13)
-#define FUSB300_IGR3_EP9_STR_REQ_INT (1 << 12)
-#define FUSB300_IGR3_EP9_STR_NOTRDY_INT (1 << 11)
-#define FUSB300_IGR3_EP9_STR_PRIME_INT (1 << 10)
-#define FUSB300_IGR3_EP8_STR_ACCEPT_INT (1 << 9)
-#define FUSB300_IGR3_EP8_STR_RESUME_INT (1 << 8)
-#define FUSB300_IGR3_EP8_STR_REQ_INT (1 << 7)
-#define FUSB300_IGR3_EP8_STR_NOTRDY_INT (1 << 6)
-#define FUSB300_IGR3_EP8_STR_PRIME_INT (1 << 5)
-#define FUSB300_IGR3_EP7_STR_ACCEPT_INT (1 << 4)
-#define FUSB300_IGR3_EP7_STR_RESUME_INT (1 << 3)
-#define FUSB300_IGR3_EP7_STR_REQ_INT (1 << 2)
-#define FUSB300_IGR3_EP7_STR_NOTRDY_INT (1 << 1)
-#define FUSB300_IGR3_EP7_STR_PRIME_INT (1 << 0)
-
-#define FUSB300_IGR3_EP_STR_ACCEPT_INT(n) (1 << (5 * (n - 6) - 1))
-#define FUSB300_IGR3_EP_STR_RESUME_INT(n) (1 << (5 * (n - 6) - 2))
-#define FUSB300_IGR3_EP_STR_REQ_INT(n) (1 << (5 * (n - 6) - 3))
-#define FUSB300_IGR3_EP_STR_NOTRDY_INT(n) (1 << (5 * (n - 6) - 4))
-#define FUSB300_IGR3_EP_STR_PRIME_INT(n) (1 << (5 * (n - 6) - 5))
-
-/*
- * *Interrupt Group 4 Register (offset = 410H)
- * */
-#define FUSB300_IGR4_EP15_RX0_INT (1 << 31)
-#define FUSB300_IGR4_EP14_RX0_INT (1 << 30)
-#define FUSB300_IGR4_EP13_RX0_INT (1 << 29)
-#define FUSB300_IGR4_EP12_RX0_INT (1 << 28)
-#define FUSB300_IGR4_EP11_RX0_INT (1 << 27)
-#define FUSB300_IGR4_EP10_RX0_INT (1 << 26)
-#define FUSB300_IGR4_EP9_RX0_INT (1 << 25)
-#define FUSB300_IGR4_EP8_RX0_INT (1 << 24)
-#define FUSB300_IGR4_EP7_RX0_INT (1 << 23)
-#define FUSB300_IGR4_EP6_RX0_INT (1 << 22)
-#define FUSB300_IGR4_EP5_RX0_INT (1 << 21)
-#define FUSB300_IGR4_EP4_RX0_INT (1 << 20)
-#define FUSB300_IGR4_EP3_RX0_INT (1 << 19)
-#define FUSB300_IGR4_EP2_RX0_INT (1 << 18)
-#define FUSB300_IGR4_EP1_RX0_INT (1 << 17)
-#define FUSB300_IGR4_EP_RX0_INT(x) (1 << (x + 16))
-#define FUSB300_IGR4_EP15_STR_ACCEPT_INT (1 << 14)
-#define FUSB300_IGR4_EP15_STR_RESUME_INT (1 << 13)
-#define FUSB300_IGR4_EP15_STR_REQ_INT (1 << 12)
-#define FUSB300_IGR4_EP15_STR_NOTRDY_INT (1 << 11)
-#define FUSB300_IGR4_EP15_STR_PRIME_INT (1 << 10)
-#define FUSB300_IGR4_EP14_STR_ACCEPT_INT (1 << 9)
-#define FUSB300_IGR4_EP14_STR_RESUME_INT (1 << 8)
-#define FUSB300_IGR4_EP14_STR_REQ_INT (1 << 7)
-#define FUSB300_IGR4_EP14_STR_NOTRDY_INT (1 << 6)
-#define FUSB300_IGR4_EP14_STR_PRIME_INT (1 << 5)
-#define FUSB300_IGR4_EP13_STR_ACCEPT_INT (1 << 4)
-#define FUSB300_IGR4_EP13_STR_RESUME_INT (1 << 3)
-#define FUSB300_IGR4_EP13_STR_REQ_INT (1 << 2)
-#define FUSB300_IGR4_EP13_STR_NOTRDY_INT (1 << 1)
-#define FUSB300_IGR4_EP13_STR_PRIME_INT (1 << 0)
-
-#define FUSB300_IGR4_EP_STR_ACCEPT_INT(n) (1 << (5 * (n - 12) - 1))
-#define FUSB300_IGR4_EP_STR_RESUME_INT(n) (1 << (5 * (n - 12) - 2))
-#define FUSB300_IGR4_EP_STR_REQ_INT(n) (1 << (5 * (n - 12) - 3))
-#define FUSB300_IGR4_EP_STR_NOTRDY_INT(n) (1 << (5 * (n - 12) - 4))
-#define FUSB300_IGR4_EP_STR_PRIME_INT(n) (1 << (5 * (n - 12) - 5))
-
-/*
- * *Interrupt Group 5 Register (offset = 414H)
- * */
-#define FUSB300_IGR5_EP_STL_INT(n) (1 << n)
-
-/*
- * *Interrupt Enable Group 0 Register (offset = 420H)
- * */
-#define FUSB300_IGER0_EEP15_PRD_INT (1 << 31)
-#define FUSB300_IGER0_EEP14_PRD_INT (1 << 30)
-#define FUSB300_IGER0_EEP13_PRD_INT (1 << 29)
-#define FUSB300_IGER0_EEP12_PRD_INT (1 << 28)
-#define FUSB300_IGER0_EEP11_PRD_INT (1 << 27)
-#define FUSB300_IGER0_EEP10_PRD_INT (1 << 26)
-#define FUSB300_IGER0_EEP9_PRD_INT (1 << 25)
-#define FUSB300_IGER0_EP8_PRD_INT (1 << 24)
-#define FUSB300_IGER0_EEP7_PRD_INT (1 << 23)
-#define FUSB300_IGER0_EEP6_PRD_INT (1 << 22)
-#define FUSB300_IGER0_EEP5_PRD_INT (1 << 21)
-#define FUSB300_IGER0_EEP4_PRD_INT (1 << 20)
-#define FUSB300_IGER0_EEP3_PRD_INT (1 << 19)
-#define FUSB300_IGER0_EEP2_PRD_INT (1 << 18)
-#define FUSB300_IGER0_EEP1_PRD_INT (1 << 17)
-#define FUSB300_IGER0_EEPn_PRD_INT(n) (1 << (n + 16))
-
-#define FUSB300_IGER0_EEP15_FIFO_INT (1 << 15)
-#define FUSB300_IGER0_EEP14_FIFO_INT (1 << 14)
-#define FUSB300_IGER0_EEP13_FIFO_INT (1 << 13)
-#define FUSB300_IGER0_EEP12_FIFO_INT (1 << 12)
-#define FUSB300_IGER0_EEP11_FIFO_INT (1 << 11)
-#define FUSB300_IGER0_EEP10_FIFO_INT (1 << 10)
-#define FUSB300_IGER0_EEP9_FIFO_INT (1 << 9)
-#define FUSB300_IGER0_EEP8_FIFO_INT (1 << 8)
-#define FUSB300_IGER0_EEP7_FIFO_INT (1 << 7)
-#define FUSB300_IGER0_EEP6_FIFO_INT (1 << 6)
-#define FUSB300_IGER0_EEP5_FIFO_INT (1 << 5)
-#define FUSB300_IGER0_EEP4_FIFO_INT (1 << 4)
-#define FUSB300_IGER0_EEP3_FIFO_INT (1 << 3)
-#define FUSB300_IGER0_EEP2_FIFO_INT (1 << 2)
-#define FUSB300_IGER0_EEP1_FIFO_INT (1 << 1)
-#define FUSB300_IGER0_EEPn_FIFO_INT(n) (1 << n)
-
-/*
- * *Interrupt Enable Group 1 Register (offset = 424H)
- * */
-#define FUSB300_IGER1_EINT_GRP5 (1 << 31)
-#define FUSB300_IGER1_VBUS_CHG_INT (1 << 30)
-#define FUSB300_IGER1_SYNF1_EMPTY_INT (1 << 29)
-#define FUSB300_IGER1_SYNF0_EMPTY_INT (1 << 28)
-#define FUSB300_IGER1_U3_EXIT_FAIL_INT (1 << 27)
-#define FUSB300_IGER1_U2_EXIT_FAIL_INT (1 << 26)
-#define FUSB300_IGER1_U1_EXIT_FAIL_INT (1 << 25)
-#define FUSB300_IGER1_U2_ENTRY_FAIL_INT (1 << 24)
-#define FUSB300_IGER1_U1_ENTRY_FAIL_INT (1 << 23)
-#define FUSB300_IGER1_U3_EXIT_INT (1 << 22)
-#define FUSB300_IGER1_U2_EXIT_INT (1 << 21)
-#define FUSB300_IGER1_U1_EXIT_INT (1 << 20)
-#define FUSB300_IGER1_U3_ENTRY_INT (1 << 19)
-#define FUSB300_IGER1_U2_ENTRY_INT (1 << 18)
-#define FUSB300_IGER1_U1_ENTRY_INT (1 << 17)
-#define FUSB300_IGER1_HOT_RST_INT (1 << 16)
-#define FUSB300_IGER1_WARM_RST_INT (1 << 15)
-#define FUSB300_IGER1_RESM_INT (1 << 14)
-#define FUSB300_IGER1_SUSP_INT (1 << 13)
-#define FUSB300_IGER1_LPM_INT (1 << 12)
-#define FUSB300_IGER1_HS_RST_INT (1 << 11)
-#define FUSB300_IGER1_EDEV_MODE_CHG_INT (1 << 9)
-#define FUSB300_IGER1_CX_COMABT_INT (1 << 8)
-#define FUSB300_IGER1_CX_COMFAIL_INT (1 << 7)
-#define FUSB300_IGER1_CX_CMDEND_INT (1 << 6)
-#define FUSB300_IGER1_CX_OUT_INT (1 << 5)
-#define FUSB300_IGER1_CX_IN_INT (1 << 4)
-#define FUSB300_IGER1_CX_SETUP_INT (1 << 3)
-#define FUSB300_IGER1_INTGRP4 (1 << 2)
-#define FUSB300_IGER1_INTGRP3 (1 << 1)
-#define FUSB300_IGER1_INTGRP2 (1 << 0)
-
-/*
- * *Interrupt Enable Group 2 Register (offset = 428H)
- * */
-#define FUSB300_IGER2_EEP_STR_ACCEPT_INT(n) (1 << (5 * n - 1))
-#define FUSB300_IGER2_EEP_STR_RESUME_INT(n) (1 << (5 * n - 2))
-#define FUSB300_IGER2_EEP_STR_REQ_INT(n) (1 << (5 * n - 3))
-#define FUSB300_IGER2_EEP_STR_NOTRDY_INT(n) (1 << (5 * n - 4))
-#define FUSB300_IGER2_EEP_STR_PRIME_INT(n) (1 << (5 * n - 5))
-
-/*
- * *Interrupt Enable Group 3 Register (offset = 42CH)
- * */
-
-#define FUSB300_IGER3_EEP_STR_ACCEPT_INT(n) (1 << (5 * (n - 6) - 1))
-#define FUSB300_IGER3_EEP_STR_RESUME_INT(n) (1 << (5 * (n - 6) - 2))
-#define FUSB300_IGER3_EEP_STR_REQ_INT(n) (1 << (5 * (n - 6) - 3))
-#define FUSB300_IGER3_EEP_STR_NOTRDY_INT(n) (1 << (5 * (n - 6) - 4))
-#define FUSB300_IGER3_EEP_STR_PRIME_INT(n) (1 << (5 * (n - 6) - 5))
-
-/*
- * *Interrupt Enable Group 4 Register (offset = 430H)
- * */
-
-#define FUSB300_IGER4_EEP_RX0_INT(n) (1 << (n + 16))
-#define FUSB300_IGER4_EEP_STR_ACCEPT_INT(n) (1 << (5 * (n - 6) - 1))
-#define FUSB300_IGER4_EEP_STR_RESUME_INT(n) (1 << (5 * (n - 6) - 2))
-#define FUSB300_IGER4_EEP_STR_REQ_INT(n) (1 << (5 * (n - 6) - 3))
-#define FUSB300_IGER4_EEP_STR_NOTRDY_INT(n) (1 << (5 * (n - 6) - 4))
-#define FUSB300_IGER4_EEP_STR_PRIME_INT(n) (1 << (5 * (n - 6) - 5))
-
-/* EP PRD Ready (EP_PRD_RDY, offset = 504H) */
-
-#define FUSB300_EPPRDR_EP15_PRD_RDY (1 << 15)
-#define FUSB300_EPPRDR_EP14_PRD_RDY (1 << 14)
-#define FUSB300_EPPRDR_EP13_PRD_RDY (1 << 13)
-#define FUSB300_EPPRDR_EP12_PRD_RDY (1 << 12)
-#define FUSB300_EPPRDR_EP11_PRD_RDY (1 << 11)
-#define FUSB300_EPPRDR_EP10_PRD_RDY (1 << 10)
-#define FUSB300_EPPRDR_EP9_PRD_RDY (1 << 9)
-#define FUSB300_EPPRDR_EP8_PRD_RDY (1 << 8)
-#define FUSB300_EPPRDR_EP7_PRD_RDY (1 << 7)
-#define FUSB300_EPPRDR_EP6_PRD_RDY (1 << 6)
-#define FUSB300_EPPRDR_EP5_PRD_RDY (1 << 5)
-#define FUSB300_EPPRDR_EP4_PRD_RDY (1 << 4)
-#define FUSB300_EPPRDR_EP3_PRD_RDY (1 << 3)
-#define FUSB300_EPPRDR_EP2_PRD_RDY (1 << 2)
-#define FUSB300_EPPRDR_EP1_PRD_RDY (1 << 1)
-#define FUSB300_EPPRDR_EP_PRD_RDY(n) (1 << n)
-
-/* AHB Bus Control Register (offset = 514H) */
-#define FUSB300_AHBBCR_S1_SPLIT_ON (1 << 17)
-#define FUSB300_AHBBCR_S0_SPLIT_ON (1 << 16)
-#define FUSB300_AHBBCR_S1_1entry (0 << 12)
-#define FUSB300_AHBBCR_S1_4entry (3 << 12)
-#define FUSB300_AHBBCR_S1_8entry (5 << 12)
-#define FUSB300_AHBBCR_S1_16entry (7 << 12)
-#define FUSB300_AHBBCR_S0_1entry (0 << 8)
-#define FUSB300_AHBBCR_S0_4entry (3 << 8)
-#define FUSB300_AHBBCR_S0_8entry (5 << 8)
-#define FUSB300_AHBBCR_S0_16entry (7 << 8)
-#define FUSB300_AHBBCR_M1_BURST_SINGLE (0 << 4)
-#define FUSB300_AHBBCR_M1_BURST_INCR (1 << 4)
-#define FUSB300_AHBBCR_M1_BURST_INCR4 (3 << 4)
-#define FUSB300_AHBBCR_M1_BURST_INCR8 (5 << 4)
-#define FUSB300_AHBBCR_M1_BURST_INCR16 (7 << 4)
-#define FUSB300_AHBBCR_M0_BURST_SINGLE 0
-#define FUSB300_AHBBCR_M0_BURST_INCR 1
-#define FUSB300_AHBBCR_M0_BURST_INCR4 3
-#define FUSB300_AHBBCR_M0_BURST_INCR8 5
-#define FUSB300_AHBBCR_M0_BURST_INCR16 7
-#define FUSB300_IGER5_EEP_STL_INT(n) (1 << n)
-
-/* WORD 0 Data Structure of PRD Table */
-#define FUSB300_EPPRD0_M (1 << 30)
-#define FUSB300_EPPRD0_O (1 << 29)
-/* The finished prd */
-#define FUSB300_EPPRD0_F (1 << 28)
-#define FUSB300_EPPRD0_I (1 << 27)
-#define FUSB300_EPPRD0_A (1 << 26)
-/* To decide HW point to first prd at next time */
-#define FUSB300_EPPRD0_L (1 << 25)
-#define FUSB300_EPPRD0_H (1 << 24)
-#define FUSB300_EPPRD0_BTC(n) (n & 0xFFFFFF)
-
-/*----------------------------------------------------------------------*/
-#define FUSB300_MAX_NUM_EP 16
-
-#define FUSB300_FIFO_ENTRY_NUM 8
-#define FUSB300_MAX_FIFO_ENTRY 8
-
-#define SS_CTL_MAX_PACKET_SIZE 0x200
-#define SS_BULK_MAX_PACKET_SIZE 0x400
-#define SS_INT_MAX_PACKET_SIZE 0x400
-#define SS_ISO_MAX_PACKET_SIZE 0x400
-
-#define HS_BULK_MAX_PACKET_SIZE 0x200
-#define HS_CTL_MAX_PACKET_SIZE 0x40
-#define HS_INT_MAX_PACKET_SIZE 0x400
-#define HS_ISO_MAX_PACKET_SIZE 0x400
-
-struct fusb300_ep_info {
- u8 epnum;
- u8 type;
- u8 interval;
- u8 dir_in;
- u16 maxpacket;
- u16 addrofs;
- u16 bw_num;
-};
-
-struct fusb300_request {
-
- struct usb_request req;
- struct list_head queue;
-};
-
-
-struct fusb300_ep {
- struct usb_ep ep;
- struct fusb300 *fusb300;
-
- struct list_head queue;
- unsigned stall:1;
- unsigned wedged:1;
- unsigned use_dma:1;
-
- unsigned char epnum;
- unsigned char type;
-};
-
-struct fusb300 {
- spinlock_t lock;
- void __iomem *reg;
-
- unsigned long irq_trigger;
-
- struct usb_gadget gadget;
- struct usb_gadget_driver *driver;
-
- struct fusb300_ep *ep[FUSB300_MAX_NUM_EP];
-
- struct usb_request *ep0_req; /* for internal request */
- __le16 ep0_data;
- u32 ep0_length; /* for internal request */
- u8 ep0_dir; /* 0/0x80 out/in */
-
- u8 fifo_entry_num; /* next start fifo entry */
- u32 addrofs; /* next fifo address offset */
- u8 reenum; /* if re-enumeration */
-};
-
-#define to_fusb300(g) (container_of((g), struct fusb300, gadget))
-
-#endif
diff --git a/drivers/usb/gadget/udc/mv_u3d.h b/drivers/usb/gadget/udc/mv_u3d.h
deleted file mode 100644
index 66b84f792f64..000000000000
--- a/drivers/usb/gadget/udc/mv_u3d.h
+++ /dev/null
@@ -1,317 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
- */
-
-#ifndef __MV_U3D_H
-#define __MV_U3D_H
-
-#define MV_U3D_EP_CONTEXT_ALIGNMENT 32
-#define MV_U3D_TRB_ALIGNMENT 16
-#define MV_U3D_DMA_BOUNDARY 4096
-#define MV_U3D_EP0_MAX_PKT_SIZE 512
-
-/* ep0 transfer state */
-#define MV_U3D_WAIT_FOR_SETUP 0
-#define MV_U3D_DATA_STATE_XMIT 1
-#define MV_U3D_DATA_STATE_NEED_ZLP 2
-#define MV_U3D_WAIT_FOR_OUT_STATUS 3
-#define MV_U3D_DATA_STATE_RECV 4
-#define MV_U3D_STATUS_STAGE 5
-
-#define MV_U3D_EP_MAX_LENGTH_TRANSFER 0x10000
-
-/* USB3 Interrupt Status */
-#define MV_U3D_USBINT_SETUP 0x00000001
-#define MV_U3D_USBINT_RX_COMPLETE 0x00000002
-#define MV_U3D_USBINT_TX_COMPLETE 0x00000004
-#define MV_U3D_USBINT_UNDER_RUN 0x00000008
-#define MV_U3D_USBINT_RXDESC_ERR 0x00000010
-#define MV_U3D_USBINT_TXDESC_ERR 0x00000020
-#define MV_U3D_USBINT_RX_TRB_COMPLETE 0x00000040
-#define MV_U3D_USBINT_TX_TRB_COMPLETE 0x00000080
-#define MV_U3D_USBINT_VBUS_VALID 0x00010000
-#define MV_U3D_USBINT_STORAGE_CMD_FULL 0x00020000
-#define MV_U3D_USBINT_LINK_CHG 0x01000000
-
-/* USB3 Interrupt Enable */
-#define MV_U3D_INTR_ENABLE_SETUP 0x00000001
-#define MV_U3D_INTR_ENABLE_RX_COMPLETE 0x00000002
-#define MV_U3D_INTR_ENABLE_TX_COMPLETE 0x00000004
-#define MV_U3D_INTR_ENABLE_UNDER_RUN 0x00000008
-#define MV_U3D_INTR_ENABLE_RXDESC_ERR 0x00000010
-#define MV_U3D_INTR_ENABLE_TXDESC_ERR 0x00000020
-#define MV_U3D_INTR_ENABLE_RX_TRB_COMPLETE 0x00000040
-#define MV_U3D_INTR_ENABLE_TX_TRB_COMPLETE 0x00000080
-#define MV_U3D_INTR_ENABLE_RX_BUFFER_ERR 0x00000100
-#define MV_U3D_INTR_ENABLE_VBUS_VALID 0x00010000
-#define MV_U3D_INTR_ENABLE_STORAGE_CMD_FULL 0x00020000
-#define MV_U3D_INTR_ENABLE_LINK_CHG 0x01000000
-#define MV_U3D_INTR_ENABLE_PRIME_STATUS 0x02000000
-
-/* USB3 Link Change */
-#define MV_U3D_LINK_CHANGE_LINK_UP 0x00000001
-#define MV_U3D_LINK_CHANGE_SUSPEND 0x00000002
-#define MV_U3D_LINK_CHANGE_RESUME 0x00000004
-#define MV_U3D_LINK_CHANGE_WRESET 0x00000008
-#define MV_U3D_LINK_CHANGE_HRESET 0x00000010
-#define MV_U3D_LINK_CHANGE_VBUS_INVALID 0x00000020
-#define MV_U3D_LINK_CHANGE_INACT 0x00000040
-#define MV_U3D_LINK_CHANGE_DISABLE_AFTER_U0 0x00000080
-#define MV_U3D_LINK_CHANGE_U1 0x00000100
-#define MV_U3D_LINK_CHANGE_U2 0x00000200
-#define MV_U3D_LINK_CHANGE_U3 0x00000400
-
-/* bridge setting */
-#define MV_U3D_BRIDGE_SETTING_VBUS_VALID (1 << 16)
-
-/* Command Register Bit Masks */
-#define MV_U3D_CMD_RUN_STOP 0x00000001
-#define MV_U3D_CMD_CTRL_RESET 0x00000002
-
-/* ep control register */
-#define MV_U3D_EPXCR_EP_TYPE_CONTROL 0
-#define MV_U3D_EPXCR_EP_TYPE_ISOC 1
-#define MV_U3D_EPXCR_EP_TYPE_BULK 2
-#define MV_U3D_EPXCR_EP_TYPE_INT 3
-#define MV_U3D_EPXCR_EP_ENABLE_SHIFT 4
-#define MV_U3D_EPXCR_MAX_BURST_SIZE_SHIFT 12
-#define MV_U3D_EPXCR_MAX_PACKET_SIZE_SHIFT 16
-#define MV_U3D_USB_BULK_BURST_OUT 6
-#define MV_U3D_USB_BULK_BURST_IN 14
-
-#define MV_U3D_EPXCR_EP_FLUSH (1 << 7)
-#define MV_U3D_EPXCR_EP_HALT (1 << 1)
-#define MV_U3D_EPXCR_EP_INIT (1)
-
-/* TX/RX Status Register */
-#define MV_U3D_XFERSTATUS_COMPLETE_SHIFT 24
-#define MV_U3D_COMPLETE_INVALID 0
-#define MV_U3D_COMPLETE_SUCCESS 1
-#define MV_U3D_COMPLETE_BUFF_ERR 2
-#define MV_U3D_COMPLETE_SHORT_PACKET 3
-#define MV_U3D_COMPLETE_TRB_ERR 5
-#define MV_U3D_XFERSTATUS_TRB_LENGTH_MASK (0xFFFFFF)
-
-#define MV_U3D_USB_LINK_BYPASS_VBUS 0x8
-
-#define MV_U3D_LTSSM_PHY_INIT_DONE 0x80000000
-#define MV_U3D_LTSSM_NEVER_GO_COMPLIANCE 0x40000000
-
-#define MV_U3D_USB3_OP_REGS_OFFSET 0x100
-#define MV_U3D_USB3_PHY_OFFSET 0xB800
-
-#define DCS_ENABLE 0x1
-
-/* timeout */
-#define MV_U3D_RESET_TIMEOUT 10000
-#define MV_U3D_FLUSH_TIMEOUT 100000
-#define MV_U3D_OWN_TIMEOUT 10000
-#define LOOPS_USEC_SHIFT 4
-#define LOOPS_USEC (1 << LOOPS_USEC_SHIFT)
-#define LOOPS(timeout) ((timeout) >> LOOPS_USEC_SHIFT)
-
-/* ep direction */
-#define MV_U3D_EP_DIR_IN 1
-#define MV_U3D_EP_DIR_OUT 0
-#define mv_u3d_ep_dir(ep) (((ep)->ep_num == 0) ? \
- ((ep)->u3d->ep0_dir) : ((ep)->direction))
-
-/* usb capability registers */
-struct mv_u3d_cap_regs {
- u32 rsvd[5];
- u32 dboff; /* doorbell register offset */
- u32 rtsoff; /* runtime register offset */
- u32 vuoff; /* vendor unique register offset */
-};
-
-/* operation registers */
-struct mv_u3d_op_regs {
- u32 usbcmd; /* Command register */
- u32 rsvd1[11];
- u32 dcbaapl; /* Device Context Base Address low register */
- u32 dcbaaph; /* Device Context Base Address high register */
- u32 rsvd2[243];
- u32 portsc; /* port status and control register*/
- u32 portlinkinfo; /* port link info register*/
- u32 rsvd3[9917];
- u32 doorbell; /* doorbell register */
-};
-
-/* control endpoint enable registers */
-struct epxcr {
- u32 epxoutcr0; /* ep out control 0 register */
- u32 epxoutcr1; /* ep out control 1 register */
- u32 epxincr0; /* ep in control 0 register */
- u32 epxincr1; /* ep in control 1 register */
-};
-
-/* transfer status registers */
-struct xferstatus {
- u32 curdeqlo; /* current TRB pointer low */
- u32 curdeqhi; /* current TRB pointer high */
- u32 statuslo; /* transfer status low */
- u32 statushi; /* transfer status high */
-};
-
-/* vendor unique control registers */
-struct mv_u3d_vuc_regs {
- u32 ctrlepenable; /* control endpoint enable register */
- u32 setuplock; /* setup lock register */
- u32 endcomplete; /* endpoint transfer complete register */
- u32 intrcause; /* interrupt cause register */
- u32 intrenable; /* interrupt enable register */
- u32 trbcomplete; /* TRB complete register */
- u32 linkchange; /* link change register */
- u32 rsvd1[5];
- u32 trbunderrun; /* TRB underrun register */
- u32 rsvd2[43];
- u32 bridgesetting; /* bridge setting register */
- u32 rsvd3[7];
- struct xferstatus txst[16]; /* TX status register */
- struct xferstatus rxst[16]; /* RX status register */
- u32 ltssm; /* LTSSM control register */
- u32 pipe; /* PIPE control register */
- u32 linkcr0; /* link control 0 register */
- u32 linkcr1; /* link control 1 register */
- u32 rsvd6[60];
- u32 mib0; /* MIB0 counter register */
- u32 usblink; /* usb link control register */
- u32 ltssmstate; /* LTSSM state register */
- u32 linkerrorcause; /* link error cause register */
- u32 rsvd7[60];
- u32 devaddrtiebrkr; /* device address and tie breaker */
- u32 itpinfo0; /* ITP info 0 register */
- u32 itpinfo1; /* ITP info 1 register */
- u32 rsvd8[61];
- struct epxcr epcr[16]; /* ep control register */
- u32 rsvd9[64];
- u32 phyaddr; /* PHY address register */
- u32 phydata; /* PHY data register */
-};
-
-/* Endpoint context structure */
-struct mv_u3d_ep_context {
- u32 rsvd0;
- u32 rsvd1;
- u32 trb_addr_lo; /* TRB address low 32 bit */
- u32 trb_addr_hi; /* TRB address high 32 bit */
- u32 rsvd2;
- u32 rsvd3;
- struct usb_ctrlrequest setup_buffer; /* setup data buffer */
-};
-
-/* TRB control data structure */
-struct mv_u3d_trb_ctrl {
- u32 own:1; /* owner of TRB */
- u32 rsvd1:3;
- u32 chain:1; /* associate this TRB with the
- next TRB on the Ring */
- u32 ioc:1; /* interrupt on complete */
- u32 rsvd2:4;
- u32 type:6; /* TRB type */
-#define TYPE_NORMAL 1
-#define TYPE_DATA 3
-#define TYPE_LINK 6
- u32 dir:1; /* Working at data stage of control endpoint
- operation. 0 is OUT and 1 is IN. */
- u32 rsvd3:15;
-};
-
-/* TRB data structure
- * For multiple TRB, all the TRBs' physical address should be continuous.
- */
-struct mv_u3d_trb_hw {
- u32 buf_addr_lo; /* data buffer address low 32 bit */
- u32 buf_addr_hi; /* data buffer address high 32 bit */
- u32 trb_len; /* transfer length */
- struct mv_u3d_trb_ctrl ctrl; /* TRB control data */
-};
-
-/* TRB structure */
-struct mv_u3d_trb {
- struct mv_u3d_trb_hw *trb_hw; /* point to the trb_hw structure */
- dma_addr_t trb_dma; /* dma address for this trb_hw */
- struct list_head trb_list; /* trb list */
-};
-
-/* device data structure */
-struct mv_u3d {
- struct usb_gadget gadget;
- struct usb_gadget_driver *driver;
- spinlock_t lock; /* device lock */
- struct completion *done;
- struct device *dev;
- int irq;
-
- /* usb controller registers */
- struct mv_u3d_cap_regs __iomem *cap_regs;
- struct mv_u3d_op_regs __iomem *op_regs;
- struct mv_u3d_vuc_regs __iomem *vuc_regs;
- void __iomem *phy_regs;
-
- unsigned int max_eps;
- struct mv_u3d_ep_context *ep_context;
- size_t ep_context_size;
- dma_addr_t ep_context_dma;
-
- struct dma_pool *trb_pool; /* for TRB data structure */
- struct mv_u3d_ep *eps;
-
- struct mv_u3d_req *status_req; /* ep0 status request */
- struct usb_ctrlrequest local_setup_buff; /* store setup data*/
-
- unsigned int resume_state; /* USB state to resume */
- unsigned int usb_state; /* USB current state */
- unsigned int ep0_state; /* Endpoint zero state */
- unsigned int ep0_dir;
-
- unsigned int dev_addr; /* device address */
-
- unsigned int errors;
-
- unsigned softconnect:1;
- unsigned vbus_active:1; /* vbus is active or not */
- unsigned remote_wakeup:1; /* support remote wakeup */
- unsigned clock_gating:1; /* clock gating or not */
- unsigned active:1; /* udc is active or not */
- unsigned vbus_valid_detect:1; /* udc vbus detection */
-
- struct mv_usb_addon_irq *vbus;
- unsigned int power;
-
- struct clk *clk;
-};
-
-/* endpoint data structure */
-struct mv_u3d_ep {
- struct usb_ep ep;
- struct mv_u3d *u3d;
- struct list_head queue; /* ep request queued hardware */
- struct list_head req_list; /* list of ep request */
- struct mv_u3d_ep_context *ep_context; /* ep context */
- u32 direction;
- char name[14];
- u32 processing; /* there is ep request
- queued on haredware */
- spinlock_t req_lock; /* ep lock */
- unsigned wedge:1;
- unsigned enabled:1;
- unsigned ep_type:2;
- unsigned ep_num:8;
-};
-
-/* request data structure */
-struct mv_u3d_req {
- struct usb_request req;
- struct mv_u3d_ep *ep;
- struct list_head queue; /* ep requst queued on hardware */
- struct list_head list; /* ep request list */
- struct list_head trb_list; /* trb list of a request */
-
- struct mv_u3d_trb *trb_head; /* point to first trb of a request */
- unsigned trb_count; /* TRB number in the chain */
- unsigned chain; /* TRB chain or not */
-};
-
-#endif
diff --git a/drivers/usb/gadget/udc/mv_u3d_core.c b/drivers/usb/gadget/udc/mv_u3d_core.c
deleted file mode 100644
index 062f43e146aa..000000000000
--- a/drivers/usb/gadget/udc/mv_u3d_core.c
+++ /dev/null
@@ -1,2062 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
- */
-
-#include <linux/module.h>
-#include <linux/dma-mapping.h>
-#include <linux/dmapool.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/timer.h>
-#include <linux/list.h>
-#include <linux/notifier.h>
-#include <linux/interrupt.h>
-#include <linux/moduleparam.h>
-#include <linux/device.h>
-#include <linux/usb/ch9.h>
-#include <linux/usb/gadget.h>
-#include <linux/pm.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-#include <linux/platform_device.h>
-#include <linux/platform_data/mv_usb.h>
-#include <linux/clk.h>
-
-#include "mv_u3d.h"
-
-#define DRIVER_DESC "Marvell PXA USB3.0 Device Controller driver"
-
-static const char driver_name[] = "mv_u3d";
-
-static void mv_u3d_nuke(struct mv_u3d_ep *ep, int status);
-static void mv_u3d_stop_activity(struct mv_u3d *u3d,
- struct usb_gadget_driver *driver);
-
-/* for endpoint 0 operations */
-static const struct usb_endpoint_descriptor mv_u3d_ep0_desc = {
- .bLength = USB_DT_ENDPOINT_SIZE,
- .bDescriptorType = USB_DT_ENDPOINT,
- .bEndpointAddress = 0,
- .bmAttributes = USB_ENDPOINT_XFER_CONTROL,
- .wMaxPacketSize = MV_U3D_EP0_MAX_PKT_SIZE,
-};
-
-static void mv_u3d_ep0_reset(struct mv_u3d *u3d)
-{
- struct mv_u3d_ep *ep;
- u32 epxcr;
- int i;
-
- for (i = 0; i < 2; i++) {
- ep = &u3d->eps[i];
- ep->u3d = u3d;
-
- /* ep0 ep context, ep0 in and out share the same ep context */
- ep->ep_context = &u3d->ep_context[1];
- }
-
- /* reset ep state machine */
- /* reset ep0 out */
- epxcr = ioread32(&u3d->vuc_regs->epcr[0].epxoutcr0);
- epxcr |= MV_U3D_EPXCR_EP_INIT;
- iowrite32(epxcr, &u3d->vuc_regs->epcr[0].epxoutcr0);
- udelay(5);
- epxcr &= ~MV_U3D_EPXCR_EP_INIT;
- iowrite32(epxcr, &u3d->vuc_regs->epcr[0].epxoutcr0);
-
- epxcr = ((MV_U3D_EP0_MAX_PKT_SIZE
- << MV_U3D_EPXCR_MAX_PACKET_SIZE_SHIFT)
- | (1 << MV_U3D_EPXCR_MAX_BURST_SIZE_SHIFT)
- | (1 << MV_U3D_EPXCR_EP_ENABLE_SHIFT)
- | MV_U3D_EPXCR_EP_TYPE_CONTROL);
- iowrite32(epxcr, &u3d->vuc_regs->epcr[0].epxoutcr1);
-
- /* reset ep0 in */
- epxcr = ioread32(&u3d->vuc_regs->epcr[0].epxincr0);
- epxcr |= MV_U3D_EPXCR_EP_INIT;
- iowrite32(epxcr, &u3d->vuc_regs->epcr[0].epxincr0);
- udelay(5);
- epxcr &= ~MV_U3D_EPXCR_EP_INIT;
- iowrite32(epxcr, &u3d->vuc_regs->epcr[0].epxincr0);
-
- epxcr = ((MV_U3D_EP0_MAX_PKT_SIZE
- << MV_U3D_EPXCR_MAX_PACKET_SIZE_SHIFT)
- | (1 << MV_U3D_EPXCR_MAX_BURST_SIZE_SHIFT)
- | (1 << MV_U3D_EPXCR_EP_ENABLE_SHIFT)
- | MV_U3D_EPXCR_EP_TYPE_CONTROL);
- iowrite32(epxcr, &u3d->vuc_regs->epcr[0].epxincr1);
-}
-
-static void mv_u3d_ep0_stall(struct mv_u3d *u3d)
-{
- u32 tmp;
- dev_dbg(u3d->dev, "%s\n", __func__);
-
- /* set TX and RX to stall */
- tmp = ioread32(&u3d->vuc_regs->epcr[0].epxoutcr0);
- tmp |= MV_U3D_EPXCR_EP_HALT;
- iowrite32(tmp, &u3d->vuc_regs->epcr[0].epxoutcr0);
-
- tmp = ioread32(&u3d->vuc_regs->epcr[0].epxincr0);
- tmp |= MV_U3D_EPXCR_EP_HALT;
- iowrite32(tmp, &u3d->vuc_regs->epcr[0].epxincr0);
-
- /* update ep0 state */
- u3d->ep0_state = MV_U3D_WAIT_FOR_SETUP;
- u3d->ep0_dir = MV_U3D_EP_DIR_OUT;
-}
-
-static int mv_u3d_process_ep_req(struct mv_u3d *u3d, int index,
- struct mv_u3d_req *curr_req)
-{
- struct mv_u3d_trb *curr_trb;
- int actual, remaining_length = 0;
- int direction, ep_num;
- int retval = 0;
- u32 tmp, status, length;
-
- direction = index % 2;
- ep_num = index / 2;
-
- actual = curr_req->req.length;
-
- while (!list_empty(&curr_req->trb_list)) {
- curr_trb = list_entry(curr_req->trb_list.next,
- struct mv_u3d_trb, trb_list);
- if (!curr_trb->trb_hw->ctrl.own) {
- dev_err(u3d->dev, "%s, TRB own error!\n",
- u3d->eps[index].name);
- return 1;
- }
-
- curr_trb->trb_hw->ctrl.own = 0;
- if (direction == MV_U3D_EP_DIR_OUT)
- tmp = ioread32(&u3d->vuc_regs->rxst[ep_num].statuslo);
- else
- tmp = ioread32(&u3d->vuc_regs->txst[ep_num].statuslo);
-
- status = tmp >> MV_U3D_XFERSTATUS_COMPLETE_SHIFT;
- length = tmp & MV_U3D_XFERSTATUS_TRB_LENGTH_MASK;
-
- if (status == MV_U3D_COMPLETE_SUCCESS ||
- (status == MV_U3D_COMPLETE_SHORT_PACKET &&
- direction == MV_U3D_EP_DIR_OUT)) {
- remaining_length += length;
- actual -= remaining_length;
- } else {
- dev_err(u3d->dev,
- "complete_tr error: ep=%d %s: error = 0x%x\n",
- index >> 1, direction ? "SEND" : "RECV",
- status);
- retval = -EPROTO;
- }
-
- list_del_init(&curr_trb->trb_list);
- }
- if (retval)
- return retval;
-
- curr_req->req.actual = actual;
- return 0;
-}
-
-/*
- * mv_u3d_done() - retire a request; caller blocked irqs
- * @status : request status to be set, only works when
- * request is still in progress.
- */
-static
-void mv_u3d_done(struct mv_u3d_ep *ep, struct mv_u3d_req *req, int status)
- __releases(&ep->udc->lock)
- __acquires(&ep->udc->lock)
-{
- struct mv_u3d *u3d = (struct mv_u3d *)ep->u3d;
-
- dev_dbg(u3d->dev, "mv_u3d_done: remove req->queue\n");
- /* Removed the req from ep queue */
- list_del_init(&req->queue);
-
- /* req.status should be set as -EINPROGRESS in ep_queue() */
- if (req->req.status == -EINPROGRESS)
- req->req.status = status;
- else
- status = req->req.status;
-
- /* Free trb for the request */
- if (!req->chain)
- dma_pool_free(u3d->trb_pool,
- req->trb_head->trb_hw, req->trb_head->trb_dma);
- else {
- dma_unmap_single(ep->u3d->gadget.dev.parent,
- (dma_addr_t)req->trb_head->trb_dma,
- req->trb_count * sizeof(struct mv_u3d_trb_hw),
- DMA_BIDIRECTIONAL);
- kfree(req->trb_head->trb_hw);
- }
- kfree(req->trb_head);
-
- usb_gadget_unmap_request(&u3d->gadget, &req->req, mv_u3d_ep_dir(ep));
-
- if (status && (status != -ESHUTDOWN)) {
- dev_dbg(u3d->dev, "complete %s req %p stat %d len %u/%u",
- ep->ep.name, &req->req, status,
- req->req.actual, req->req.length);
- }
-
- spin_unlock(&ep->u3d->lock);
-
- usb_gadget_giveback_request(&ep->ep, &req->req);
-
- spin_lock(&ep->u3d->lock);
-}
-
-static int mv_u3d_queue_trb(struct mv_u3d_ep *ep, struct mv_u3d_req *req)
-{
- u32 tmp, direction;
- struct mv_u3d *u3d;
- struct mv_u3d_ep_context *ep_context;
- int retval = 0;
-
- u3d = ep->u3d;
- direction = mv_u3d_ep_dir(ep);
-
- /* ep0 in and out share the same ep context slot 1*/
- if (ep->ep_num == 0)
- ep_context = &(u3d->ep_context[1]);
- else
- ep_context = &(u3d->ep_context[ep->ep_num * 2 + direction]);
-
- /* check if the pipe is empty or not */
- if (!list_empty(&ep->queue)) {
- dev_err(u3d->dev, "add trb to non-empty queue!\n");
- retval = -ENOMEM;
- WARN_ON(1);
- } else {
- ep_context->rsvd0 = cpu_to_le32(1);
- ep_context->rsvd1 = 0;
-
- /* Configure the trb address and set the DCS bit.
- * Both DCS bit and own bit in trb should be set.
- */
- ep_context->trb_addr_lo =
- cpu_to_le32(req->trb_head->trb_dma | DCS_ENABLE);
- ep_context->trb_addr_hi = 0;
-
- /* Ensure that updates to the EP Context will
- * occure before Ring Bell.
- */
- wmb();
-
- /* ring bell the ep */
- if (ep->ep_num == 0)
- tmp = 0x1;
- else
- tmp = ep->ep_num * 2
- + ((direction == MV_U3D_EP_DIR_OUT) ? 0 : 1);
-
- iowrite32(tmp, &u3d->op_regs->doorbell);
- }
- return retval;
-}
-
-static struct mv_u3d_trb *mv_u3d_build_trb_one(struct mv_u3d_req *req,
- unsigned *length, dma_addr_t *dma)
-{
- u32 temp;
- unsigned int direction;
- struct mv_u3d_trb *trb;
- struct mv_u3d_trb_hw *trb_hw;
- struct mv_u3d *u3d;
-
- /* how big will this transfer be? */
- *length = req->req.length - req->req.actual;
- BUG_ON(*length > (unsigned)MV_U3D_EP_MAX_LENGTH_TRANSFER);
-
- u3d = req->ep->u3d;
-
- trb = kzalloc(sizeof(*trb), GFP_ATOMIC);
- if (!trb)
- return NULL;
-
- /*
- * Be careful that no _GFP_HIGHMEM is set,
- * or we can not use dma_to_virt
- * cannot use GFP_KERNEL in spin lock
- */
- trb_hw = dma_pool_alloc(u3d->trb_pool, GFP_ATOMIC, dma);
- if (!trb_hw) {
- kfree(trb);
- dev_err(u3d->dev,
- "%s, dma_pool_alloc fail\n", __func__);
- return NULL;
- }
- trb->trb_dma = *dma;
- trb->trb_hw = trb_hw;
-
- /* initialize buffer page pointers */
- temp = (u32)(req->req.dma + req->req.actual);
-
- trb_hw->buf_addr_lo = cpu_to_le32(temp);
- trb_hw->buf_addr_hi = 0;
- trb_hw->trb_len = cpu_to_le32(*length);
- trb_hw->ctrl.own = 1;
-
- if (req->ep->ep_num == 0)
- trb_hw->ctrl.type = TYPE_DATA;
- else
- trb_hw->ctrl.type = TYPE_NORMAL;
-
- req->req.actual += *length;
-
- direction = mv_u3d_ep_dir(req->ep);
- if (direction == MV_U3D_EP_DIR_IN)
- trb_hw->ctrl.dir = 1;
- else
- trb_hw->ctrl.dir = 0;
-
- /* Enable interrupt for the last trb of a request */
- if (!req->req.no_interrupt)
- trb_hw->ctrl.ioc = 1;
-
- trb_hw->ctrl.chain = 0;
-
- wmb();
- return trb;
-}
-
-static int mv_u3d_build_trb_chain(struct mv_u3d_req *req, unsigned *length,
- struct mv_u3d_trb *trb, int *is_last)
-{
- u32 temp;
- unsigned int direction;
- struct mv_u3d *u3d;
-
- /* how big will this transfer be? */
- *length = min(req->req.length - req->req.actual,
- (unsigned)MV_U3D_EP_MAX_LENGTH_TRANSFER);
-
- u3d = req->ep->u3d;
-
- trb->trb_dma = 0;
-
- /* initialize buffer page pointers */
- temp = (u32)(req->req.dma + req->req.actual);
-
- trb->trb_hw->buf_addr_lo = cpu_to_le32(temp);
- trb->trb_hw->buf_addr_hi = 0;
- trb->trb_hw->trb_len = cpu_to_le32(*length);
- trb->trb_hw->ctrl.own = 1;
-
- if (req->ep->ep_num == 0)
- trb->trb_hw->ctrl.type = TYPE_DATA;
- else
- trb->trb_hw->ctrl.type = TYPE_NORMAL;
-
- req->req.actual += *length;
-
- direction = mv_u3d_ep_dir(req->ep);
- if (direction == MV_U3D_EP_DIR_IN)
- trb->trb_hw->ctrl.dir = 1;
- else
- trb->trb_hw->ctrl.dir = 0;
-
- /* zlp is needed if req->req.zero is set */
- if (req->req.zero) {
- if (*length == 0 || (*length % req->ep->ep.maxpacket) != 0)
- *is_last = 1;
- else
- *is_last = 0;
- } else if (req->req.length == req->req.actual)
- *is_last = 1;
- else
- *is_last = 0;
-
- /* Enable interrupt for the last trb of a request */
- if (*is_last && !req->req.no_interrupt)
- trb->trb_hw->ctrl.ioc = 1;
-
- if (*is_last)
- trb->trb_hw->ctrl.chain = 0;
- else {
- trb->trb_hw->ctrl.chain = 1;
- dev_dbg(u3d->dev, "chain trb\n");
- }
-
- wmb();
-
- return 0;
-}
-
-/* generate TRB linked list for a request
- * usb controller only supports continous trb chain,
- * that trb structure physical address should be continous.
- */
-static int mv_u3d_req_to_trb(struct mv_u3d_req *req)
-{
- unsigned count;
- int is_last;
- struct mv_u3d_trb *trb;
- struct mv_u3d_trb_hw *trb_hw;
- struct mv_u3d *u3d;
- dma_addr_t dma;
- unsigned length;
- unsigned trb_num;
-
- u3d = req->ep->u3d;
-
- INIT_LIST_HEAD(&req->trb_list);
-
- length = req->req.length - req->req.actual;
- /* normally the request transfer length is less than 16KB.
- * we use buil_trb_one() to optimize it.
- */
- if (length <= (unsigned)MV_U3D_EP_MAX_LENGTH_TRANSFER) {
- trb = mv_u3d_build_trb_one(req, &count, &dma);
- list_add_tail(&trb->trb_list, &req->trb_list);
- req->trb_head = trb;
- req->trb_count = 1;
- req->chain = 0;
- } else {
- trb_num = length / MV_U3D_EP_MAX_LENGTH_TRANSFER;
- if (length % MV_U3D_EP_MAX_LENGTH_TRANSFER)
- trb_num++;
-
- trb = kcalloc(trb_num, sizeof(*trb), GFP_ATOMIC);
- if (!trb)
- return -ENOMEM;
-
- trb_hw = kcalloc(trb_num, sizeof(*trb_hw), GFP_ATOMIC);
- if (!trb_hw) {
- kfree(trb);
- return -ENOMEM;
- }
-
- do {
- trb->trb_hw = trb_hw;
- if (mv_u3d_build_trb_chain(req, &count,
- trb, &is_last)) {
- dev_err(u3d->dev,
- "%s, mv_u3d_build_trb_chain fail\n",
- __func__);
- return -EIO;
- }
-
- list_add_tail(&trb->trb_list, &req->trb_list);
- req->trb_count++;
- trb++;
- trb_hw++;
- } while (!is_last);
-
- req->trb_head = list_entry(req->trb_list.next,
- struct mv_u3d_trb, trb_list);
- req->trb_head->trb_dma = dma_map_single(u3d->gadget.dev.parent,
- req->trb_head->trb_hw,
- trb_num * sizeof(*trb_hw),
- DMA_BIDIRECTIONAL);
- if (dma_mapping_error(u3d->gadget.dev.parent,
- req->trb_head->trb_dma)) {
- kfree(req->trb_head->trb_hw);
- kfree(req->trb_head);
- return -EFAULT;
- }
-
- req->chain = 1;
- }
-
- return 0;
-}
-
-static int
-mv_u3d_start_queue(struct mv_u3d_ep *ep)
-{
- struct mv_u3d *u3d = ep->u3d;
- struct mv_u3d_req *req;
- int ret;
-
- if (!list_empty(&ep->req_list) && !ep->processing)
- req = list_entry(ep->req_list.next, struct mv_u3d_req, list);
- else
- return 0;
-
- ep->processing = 1;
-
- /* set up dma mapping */
- ret = usb_gadget_map_request(&u3d->gadget, &req->req,
- mv_u3d_ep_dir(ep));
- if (ret)
- goto break_processing;
-
- req->req.status = -EINPROGRESS;
- req->req.actual = 0;
- req->trb_count = 0;
-
- /* build trbs */
- ret = mv_u3d_req_to_trb(req);
- if (ret) {
- dev_err(u3d->dev, "%s, mv_u3d_req_to_trb fail\n", __func__);
- goto break_processing;
- }
-
- /* and push them to device queue */
- ret = mv_u3d_queue_trb(ep, req);
- if (ret)
- goto break_processing;
-
- /* irq handler advances the queue */
- list_add_tail(&req->queue, &ep->queue);
-
- return 0;
-
-break_processing:
- ep->processing = 0;
- return ret;
-}
-
-static int mv_u3d_ep_enable(struct usb_ep *_ep,
- const struct usb_endpoint_descriptor *desc)
-{
- struct mv_u3d *u3d;
- struct mv_u3d_ep *ep;
- u16 max = 0;
- unsigned maxburst = 0;
- u32 epxcr, direction;
-
- if (!_ep || !desc || desc->bDescriptorType != USB_DT_ENDPOINT)
- return -EINVAL;
-
- ep = container_of(_ep, struct mv_u3d_ep, ep);
- u3d = ep->u3d;
-
- if (!u3d->driver || u3d->gadget.speed == USB_SPEED_UNKNOWN)
- return -ESHUTDOWN;
-
- direction = mv_u3d_ep_dir(ep);
- max = le16_to_cpu(desc->wMaxPacketSize);
-
- if (!_ep->maxburst)
- _ep->maxburst = 1;
- maxburst = _ep->maxburst;
-
- /* Set the max burst size */
- switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
- case USB_ENDPOINT_XFER_BULK:
- if (maxburst > 16) {
- dev_dbg(u3d->dev,
- "max burst should not be greater "
- "than 16 on bulk ep\n");
- maxburst = 1;
- _ep->maxburst = maxburst;
- }
- dev_dbg(u3d->dev,
- "maxburst: %d on bulk %s\n", maxburst, ep->name);
- break;
- case USB_ENDPOINT_XFER_CONTROL:
- /* control transfer only supports maxburst as one */
- maxburst = 1;
- _ep->maxburst = maxburst;
- break;
- case USB_ENDPOINT_XFER_INT:
- if (maxburst != 1) {
- dev_dbg(u3d->dev,
- "max burst should be 1 on int ep "
- "if transfer size is not 1024\n");
- maxburst = 1;
- _ep->maxburst = maxburst;
- }
- break;
- case USB_ENDPOINT_XFER_ISOC:
- if (maxburst != 1) {
- dev_dbg(u3d->dev,
- "max burst should be 1 on isoc ep "
- "if transfer size is not 1024\n");
- maxburst = 1;
- _ep->maxburst = maxburst;
- }
- break;
- default:
- goto en_done;
- }
-
- ep->ep.maxpacket = max;
- ep->ep.desc = desc;
- ep->enabled = 1;
-
- /* Enable the endpoint for Rx or Tx and set the endpoint type */
- if (direction == MV_U3D_EP_DIR_OUT) {
- epxcr = ioread32(&u3d->vuc_regs->epcr[ep->ep_num].epxoutcr0);
- epxcr |= MV_U3D_EPXCR_EP_INIT;
- iowrite32(epxcr, &u3d->vuc_regs->epcr[ep->ep_num].epxoutcr0);
- udelay(5);
- epxcr &= ~MV_U3D_EPXCR_EP_INIT;
- iowrite32(epxcr, &u3d->vuc_regs->epcr[ep->ep_num].epxoutcr0);
-
- epxcr = ((max << MV_U3D_EPXCR_MAX_PACKET_SIZE_SHIFT)
- | ((maxburst - 1) << MV_U3D_EPXCR_MAX_BURST_SIZE_SHIFT)
- | (1 << MV_U3D_EPXCR_EP_ENABLE_SHIFT)
- | (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK));
- iowrite32(epxcr, &u3d->vuc_regs->epcr[ep->ep_num].epxoutcr1);
- } else {
- epxcr = ioread32(&u3d->vuc_regs->epcr[ep->ep_num].epxincr0);
- epxcr |= MV_U3D_EPXCR_EP_INIT;
- iowrite32(epxcr, &u3d->vuc_regs->epcr[ep->ep_num].epxincr0);
- udelay(5);
- epxcr &= ~MV_U3D_EPXCR_EP_INIT;
- iowrite32(epxcr, &u3d->vuc_regs->epcr[ep->ep_num].epxincr0);
-
- epxcr = ((max << MV_U3D_EPXCR_MAX_PACKET_SIZE_SHIFT)
- | ((maxburst - 1) << MV_U3D_EPXCR_MAX_BURST_SIZE_SHIFT)
- | (1 << MV_U3D_EPXCR_EP_ENABLE_SHIFT)
- | (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK));
- iowrite32(epxcr, &u3d->vuc_regs->epcr[ep->ep_num].epxincr1);
- }
-
- return 0;
-en_done:
- return -EINVAL;
-}
-
-static int mv_u3d_ep_disable(struct usb_ep *_ep)
-{
- struct mv_u3d *u3d;
- struct mv_u3d_ep *ep;
- u32 epxcr, direction;
- unsigned long flags;
-
- if (!_ep)
- return -EINVAL;
-
- ep = container_of(_ep, struct mv_u3d_ep, ep);
- if (!ep->ep.desc)
- return -EINVAL;
-
- u3d = ep->u3d;
-
- direction = mv_u3d_ep_dir(ep);
-
- /* nuke all pending requests (does flush) */
- spin_lock_irqsave(&u3d->lock, flags);
- mv_u3d_nuke(ep, -ESHUTDOWN);
- spin_unlock_irqrestore(&u3d->lock, flags);
-
- /* Disable the endpoint for Rx or Tx and reset the endpoint type */
- if (direction == MV_U3D_EP_DIR_OUT) {
- epxcr = ioread32(&u3d->vuc_regs->epcr[ep->ep_num].epxoutcr1);
- epxcr &= ~((1 << MV_U3D_EPXCR_EP_ENABLE_SHIFT)
- | USB_ENDPOINT_XFERTYPE_MASK);
- iowrite32(epxcr, &u3d->vuc_regs->epcr[ep->ep_num].epxoutcr1);
- } else {
- epxcr = ioread32(&u3d->vuc_regs->epcr[ep->ep_num].epxincr1);
- epxcr &= ~((1 << MV_U3D_EPXCR_EP_ENABLE_SHIFT)
- | USB_ENDPOINT_XFERTYPE_MASK);
- iowrite32(epxcr, &u3d->vuc_regs->epcr[ep->ep_num].epxincr1);
- }
-
- ep->enabled = 0;
-
- ep->ep.desc = NULL;
- return 0;
-}
-
-static struct usb_request *
-mv_u3d_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags)
-{
- struct mv_u3d_req *req;
-
- req = kzalloc(sizeof *req, gfp_flags);
- if (!req)
- return NULL;
-
- INIT_LIST_HEAD(&req->queue);
-
- return &req->req;
-}
-
-static void mv_u3d_free_request(struct usb_ep *_ep, struct usb_request *_req)
-{
- struct mv_u3d_req *req = container_of(_req, struct mv_u3d_req, req);
-
- kfree(req);
-}
-
-static void mv_u3d_ep_fifo_flush(struct usb_ep *_ep)
-{
- struct mv_u3d *u3d;
- u32 direction;
- struct mv_u3d_ep *ep = container_of(_ep, struct mv_u3d_ep, ep);
- unsigned int loops;
- u32 tmp;
-
- /* if endpoint is not enabled, cannot flush endpoint */
- if (!ep->enabled)
- return;
-
- u3d = ep->u3d;
- direction = mv_u3d_ep_dir(ep);
-
- /* ep0 need clear bit after flushing fifo. */
- if (!ep->ep_num) {
- if (direction == MV_U3D_EP_DIR_OUT) {
- tmp = ioread32(&u3d->vuc_regs->epcr[0].epxoutcr0);
- tmp |= MV_U3D_EPXCR_EP_FLUSH;
- iowrite32(tmp, &u3d->vuc_regs->epcr[0].epxoutcr0);
- udelay(10);
- tmp &= ~MV_U3D_EPXCR_EP_FLUSH;
- iowrite32(tmp, &u3d->vuc_regs->epcr[0].epxoutcr0);
- } else {
- tmp = ioread32(&u3d->vuc_regs->epcr[0].epxincr0);
- tmp |= MV_U3D_EPXCR_EP_FLUSH;
- iowrite32(tmp, &u3d->vuc_regs->epcr[0].epxincr0);
- udelay(10);
- tmp &= ~MV_U3D_EPXCR_EP_FLUSH;
- iowrite32(tmp, &u3d->vuc_regs->epcr[0].epxincr0);
- }
- return;
- }
-
- if (direction == MV_U3D_EP_DIR_OUT) {
- tmp = ioread32(&u3d->vuc_regs->epcr[ep->ep_num].epxoutcr0);
- tmp |= MV_U3D_EPXCR_EP_FLUSH;
- iowrite32(tmp, &u3d->vuc_regs->epcr[ep->ep_num].epxoutcr0);
-
- /* Wait until flushing completed */
- loops = LOOPS(MV_U3D_FLUSH_TIMEOUT);
- while (ioread32(&u3d->vuc_regs->epcr[ep->ep_num].epxoutcr0) &
- MV_U3D_EPXCR_EP_FLUSH) {
- /*
- * EP_FLUSH bit should be cleared to indicate this
- * operation is complete
- */
- if (loops == 0) {
- dev_dbg(u3d->dev,
- "EP FLUSH TIMEOUT for ep%d%s\n", ep->ep_num,
- direction ? "in" : "out");
- return;
- }
- loops--;
- udelay(LOOPS_USEC);
- }
- } else { /* EP_DIR_IN */
- tmp = ioread32(&u3d->vuc_regs->epcr[ep->ep_num].epxincr0);
- tmp |= MV_U3D_EPXCR_EP_FLUSH;
- iowrite32(tmp, &u3d->vuc_regs->epcr[ep->ep_num].epxincr0);
-
- /* Wait until flushing completed */
- loops = LOOPS(MV_U3D_FLUSH_TIMEOUT);
- while (ioread32(&u3d->vuc_regs->epcr[ep->ep_num].epxincr0) &
- MV_U3D_EPXCR_EP_FLUSH) {
- /*
- * EP_FLUSH bit should be cleared to indicate this
- * operation is complete
- */
- if (loops == 0) {
- dev_dbg(u3d->dev,
- "EP FLUSH TIMEOUT for ep%d%s\n", ep->ep_num,
- direction ? "in" : "out");
- return;
- }
- loops--;
- udelay(LOOPS_USEC);
- }
- }
-}
-
-/* queues (submits) an I/O request to an endpoint */
-static int
-mv_u3d_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
-{
- struct mv_u3d_ep *ep;
- struct mv_u3d_req *req;
- struct mv_u3d *u3d;
- unsigned long flags;
- int is_first_req = 0;
-
- if (unlikely(!_ep || !_req))
- return -EINVAL;
-
- ep = container_of(_ep, struct mv_u3d_ep, ep);
- u3d = ep->u3d;
-
- req = container_of(_req, struct mv_u3d_req, req);
-
- if (!ep->ep_num
- && u3d->ep0_state == MV_U3D_STATUS_STAGE
- && !_req->length) {
- dev_dbg(u3d->dev, "ep0 status stage\n");
- u3d->ep0_state = MV_U3D_WAIT_FOR_SETUP;
- return 0;
- }
-
- dev_dbg(u3d->dev, "%s: %s, req: 0x%p\n",
- __func__, _ep->name, req);
-
- /* catch various bogus parameters */
- if (!req->req.complete || !req->req.buf
- || !list_empty(&req->queue)) {
- dev_err(u3d->dev,
- "%s, bad params, _req: 0x%p,"
- "req->req.complete: 0x%p, req->req.buf: 0x%p,"
- "list_empty: 0x%x\n",
- __func__, _req,
- req->req.complete, req->req.buf,
- list_empty(&req->queue));
- return -EINVAL;
- }
- if (unlikely(!ep->ep.desc)) {
- dev_err(u3d->dev, "%s, bad ep\n", __func__);
- return -EINVAL;
- }
- if (ep->ep.desc->bmAttributes == USB_ENDPOINT_XFER_ISOC) {
- if (req->req.length > ep->ep.maxpacket)
- return -EMSGSIZE;
- }
-
- if (!u3d->driver || u3d->gadget.speed == USB_SPEED_UNKNOWN) {
- dev_err(u3d->dev,
- "bad params of driver/speed\n");
- return -ESHUTDOWN;
- }
-
- req->ep = ep;
-
- /* Software list handles usb request. */
- spin_lock_irqsave(&ep->req_lock, flags);
- is_first_req = list_empty(&ep->req_list);
- list_add_tail(&req->list, &ep->req_list);
- spin_unlock_irqrestore(&ep->req_lock, flags);
- if (!is_first_req) {
- dev_dbg(u3d->dev, "list is not empty\n");
- return 0;
- }
-
- dev_dbg(u3d->dev, "call mv_u3d_start_queue from usb_ep_queue\n");
- spin_lock_irqsave(&u3d->lock, flags);
- mv_u3d_start_queue(ep);
- spin_unlock_irqrestore(&u3d->lock, flags);
- return 0;
-}
-
-/* dequeues (cancels, unlinks) an I/O request from an endpoint */
-static int mv_u3d_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
-{
- struct mv_u3d_ep *ep;
- struct mv_u3d_req *req = NULL, *iter;
- struct mv_u3d *u3d;
- struct mv_u3d_ep_context *ep_context;
- struct mv_u3d_req *next_req;
-
- unsigned long flags;
- int ret = 0;
-
- if (!_ep || !_req)
- return -EINVAL;
-
- ep = container_of(_ep, struct mv_u3d_ep, ep);
- u3d = ep->u3d;
-
- spin_lock_irqsave(&ep->u3d->lock, flags);
-
- /* make sure it's actually queued on this endpoint */
- list_for_each_entry(iter, &ep->queue, queue) {
- if (&iter->req != _req)
- continue;
- req = iter;
- break;
- }
- if (!req) {
- ret = -EINVAL;
- goto out;
- }
-
- /* The request is in progress, or completed but not dequeued */
- if (ep->queue.next == &req->queue) {
- _req->status = -ECONNRESET;
- mv_u3d_ep_fifo_flush(_ep);
-
- /* The request isn't the last request in this ep queue */
- if (req->queue.next != &ep->queue) {
- dev_dbg(u3d->dev,
- "it is the last request in this ep queue\n");
- ep_context = ep->ep_context;
- next_req = list_entry(req->queue.next,
- struct mv_u3d_req, queue);
-
- /* Point first TRB of next request to the EP context. */
- iowrite32((unsigned long) next_req->trb_head,
- &ep_context->trb_addr_lo);
- } else {
- struct mv_u3d_ep_context *ep_context;
- ep_context = ep->ep_context;
- ep_context->trb_addr_lo = 0;
- ep_context->trb_addr_hi = 0;
- }
-
- } else
- WARN_ON(1);
-
- mv_u3d_done(ep, req, -ECONNRESET);
-
- /* remove the req from the ep req list */
- if (!list_empty(&ep->req_list)) {
- struct mv_u3d_req *curr_req;
- curr_req = list_entry(ep->req_list.next,
- struct mv_u3d_req, list);
- if (curr_req == req) {
- list_del_init(&req->list);
- ep->processing = 0;
- }
- }
-
-out:
- spin_unlock_irqrestore(&ep->u3d->lock, flags);
- return ret;
-}
-
-static void
-mv_u3d_ep_set_stall(struct mv_u3d *u3d, u8 ep_num, u8 direction, int stall)
-{
- u32 tmp;
- struct mv_u3d_ep *ep = u3d->eps;
-
- dev_dbg(u3d->dev, "%s\n", __func__);
- if (direction == MV_U3D_EP_DIR_OUT) {
- tmp = ioread32(&u3d->vuc_regs->epcr[ep->ep_num].epxoutcr0);
- if (stall)
- tmp |= MV_U3D_EPXCR_EP_HALT;
- else
- tmp &= ~MV_U3D_EPXCR_EP_HALT;
- iowrite32(tmp, &u3d->vuc_regs->epcr[ep->ep_num].epxoutcr0);
- } else {
- tmp = ioread32(&u3d->vuc_regs->epcr[ep->ep_num].epxincr0);
- if (stall)
- tmp |= MV_U3D_EPXCR_EP_HALT;
- else
- tmp &= ~MV_U3D_EPXCR_EP_HALT;
- iowrite32(tmp, &u3d->vuc_regs->epcr[ep->ep_num].epxincr0);
- }
-}
-
-static int mv_u3d_ep_set_halt_wedge(struct usb_ep *_ep, int halt, int wedge)
-{
- struct mv_u3d_ep *ep;
- unsigned long flags;
- int status = 0;
- struct mv_u3d *u3d;
-
- ep = container_of(_ep, struct mv_u3d_ep, ep);
- u3d = ep->u3d;
- if (!ep->ep.desc) {
- status = -EINVAL;
- goto out;
- }
-
- if (ep->ep.desc->bmAttributes == USB_ENDPOINT_XFER_ISOC) {
- status = -EOPNOTSUPP;
- goto out;
- }
-
- /*
- * Attempt to halt IN ep will fail if any transfer requests
- * are still queue
- */
- if (halt && (mv_u3d_ep_dir(ep) == MV_U3D_EP_DIR_IN)
- && !list_empty(&ep->queue)) {
- status = -EAGAIN;
- goto out;
- }
-
- spin_lock_irqsave(&ep->u3d->lock, flags);
- mv_u3d_ep_set_stall(u3d, ep->ep_num, mv_u3d_ep_dir(ep), halt);
- if (halt && wedge)
- ep->wedge = 1;
- else if (!halt)
- ep->wedge = 0;
- spin_unlock_irqrestore(&ep->u3d->lock, flags);
-
- if (ep->ep_num == 0)
- u3d->ep0_dir = MV_U3D_EP_DIR_OUT;
-out:
- return status;
-}
-
-static int mv_u3d_ep_set_halt(struct usb_ep *_ep, int halt)
-{
- return mv_u3d_ep_set_halt_wedge(_ep, halt, 0);
-}
-
-static int mv_u3d_ep_set_wedge(struct usb_ep *_ep)
-{
- return mv_u3d_ep_set_halt_wedge(_ep, 1, 1);
-}
-
-static const struct usb_ep_ops mv_u3d_ep_ops = {
- .enable = mv_u3d_ep_enable,
- .disable = mv_u3d_ep_disable,
-
- .alloc_request = mv_u3d_alloc_request,
- .free_request = mv_u3d_free_request,
-
- .queue = mv_u3d_ep_queue,
- .dequeue = mv_u3d_ep_dequeue,
-
- .set_wedge = mv_u3d_ep_set_wedge,
- .set_halt = mv_u3d_ep_set_halt,
- .fifo_flush = mv_u3d_ep_fifo_flush,
-};
-
-static void mv_u3d_controller_stop(struct mv_u3d *u3d)
-{
- u32 tmp;
-
- if (!u3d->clock_gating && u3d->vbus_valid_detect)
- iowrite32(MV_U3D_INTR_ENABLE_VBUS_VALID,
- &u3d->vuc_regs->intrenable);
- else
- iowrite32(0, &u3d->vuc_regs->intrenable);
- iowrite32(~0x0, &u3d->vuc_regs->endcomplete);
- iowrite32(~0x0, &u3d->vuc_regs->trbunderrun);
- iowrite32(~0x0, &u3d->vuc_regs->trbcomplete);
- iowrite32(~0x0, &u3d->vuc_regs->linkchange);
- iowrite32(0x1, &u3d->vuc_regs->setuplock);
-
- /* Reset the RUN bit in the command register to stop USB */
- tmp = ioread32(&u3d->op_regs->usbcmd);
- tmp &= ~MV_U3D_CMD_RUN_STOP;
- iowrite32(tmp, &u3d->op_regs->usbcmd);
- dev_dbg(u3d->dev, "after u3d_stop, USBCMD 0x%x\n",
- ioread32(&u3d->op_regs->usbcmd));
-}
-
-static void mv_u3d_controller_start(struct mv_u3d *u3d)
-{
- u32 usbintr;
- u32 temp;
-
- /* enable link LTSSM state machine */
- temp = ioread32(&u3d->vuc_regs->ltssm);
- temp |= MV_U3D_LTSSM_PHY_INIT_DONE;
- iowrite32(temp, &u3d->vuc_regs->ltssm);
-
- /* Enable interrupts */
- usbintr = MV_U3D_INTR_ENABLE_LINK_CHG | MV_U3D_INTR_ENABLE_TXDESC_ERR |
- MV_U3D_INTR_ENABLE_RXDESC_ERR | MV_U3D_INTR_ENABLE_TX_COMPLETE |
- MV_U3D_INTR_ENABLE_RX_COMPLETE | MV_U3D_INTR_ENABLE_SETUP |
- (u3d->vbus_valid_detect ? MV_U3D_INTR_ENABLE_VBUS_VALID : 0);
- iowrite32(usbintr, &u3d->vuc_regs->intrenable);
-
- /* Enable ctrl ep */
- iowrite32(0x1, &u3d->vuc_regs->ctrlepenable);
-
- /* Set the Run bit in the command register */
- iowrite32(MV_U3D_CMD_RUN_STOP, &u3d->op_regs->usbcmd);
- dev_dbg(u3d->dev, "after u3d_start, USBCMD 0x%x\n",
- ioread32(&u3d->op_regs->usbcmd));
-}
-
-static int mv_u3d_controller_reset(struct mv_u3d *u3d)
-{
- unsigned int loops;
- u32 tmp;
-
- /* Stop the controller */
- tmp = ioread32(&u3d->op_regs->usbcmd);
- tmp &= ~MV_U3D_CMD_RUN_STOP;
- iowrite32(tmp, &u3d->op_regs->usbcmd);
-
- /* Reset the controller to get default values */
- iowrite32(MV_U3D_CMD_CTRL_RESET, &u3d->op_regs->usbcmd);
-
- /* wait for reset to complete */
- loops = LOOPS(MV_U3D_RESET_TIMEOUT);
- while (ioread32(&u3d->op_regs->usbcmd) & MV_U3D_CMD_CTRL_RESET) {
- if (loops == 0) {
- dev_err(u3d->dev,
- "Wait for RESET completed TIMEOUT\n");
- return -ETIMEDOUT;
- }
- loops--;
- udelay(LOOPS_USEC);
- }
-
- /* Configure the Endpoint Context Address */
- iowrite32(u3d->ep_context_dma, &u3d->op_regs->dcbaapl);
- iowrite32(0, &u3d->op_regs->dcbaaph);
-
- return 0;
-}
-
-static int mv_u3d_enable(struct mv_u3d *u3d)
-{
- struct mv_usb_platform_data *pdata = dev_get_platdata(u3d->dev);
- int retval;
-
- if (u3d->active)
- return 0;
-
- if (!u3d->clock_gating) {
- u3d->active = 1;
- return 0;
- }
-
- dev_dbg(u3d->dev, "enable u3d\n");
- clk_enable(u3d->clk);
- if (pdata->phy_init) {
- retval = pdata->phy_init(u3d->phy_regs);
- if (retval) {
- dev_err(u3d->dev,
- "init phy error %d\n", retval);
- clk_disable(u3d->clk);
- return retval;
- }
- }
- u3d->active = 1;
-
- return 0;
-}
-
-static void mv_u3d_disable(struct mv_u3d *u3d)
-{
- struct mv_usb_platform_data *pdata = dev_get_platdata(u3d->dev);
- if (u3d->clock_gating && u3d->active) {
- dev_dbg(u3d->dev, "disable u3d\n");
- if (pdata->phy_deinit)
- pdata->phy_deinit(u3d->phy_regs);
- clk_disable(u3d->clk);
- u3d->active = 0;
- }
-}
-
-static int mv_u3d_vbus_session(struct usb_gadget *gadget, int is_active)
-{
- struct mv_u3d *u3d;
- unsigned long flags;
- int retval = 0;
-
- u3d = container_of(gadget, struct mv_u3d, gadget);
-
- spin_lock_irqsave(&u3d->lock, flags);
-
- u3d->vbus_active = (is_active != 0);
- dev_dbg(u3d->dev, "%s: softconnect %d, vbus_active %d\n",
- __func__, u3d->softconnect, u3d->vbus_active);
- /*
- * 1. external VBUS detect: we can disable/enable clock on demand.
- * 2. UDC VBUS detect: we have to enable clock all the time.
- * 3. No VBUS detect: we have to enable clock all the time.
- */
- if (u3d->driver && u3d->softconnect && u3d->vbus_active) {
- retval = mv_u3d_enable(u3d);
- if (retval == 0) {
- /*
- * after clock is disabled, we lost all the register
- * context. We have to re-init registers
- */
- mv_u3d_controller_reset(u3d);
- mv_u3d_ep0_reset(u3d);
- mv_u3d_controller_start(u3d);
- }
- } else if (u3d->driver && u3d->softconnect) {
- if (!u3d->active)
- goto out;
-
- /* stop all the transfer in queue*/
- mv_u3d_stop_activity(u3d, u3d->driver);
- mv_u3d_controller_stop(u3d);
- mv_u3d_disable(u3d);
- }
-
-out:
- spin_unlock_irqrestore(&u3d->lock, flags);
- return retval;
-}
-
-/* constrain controller's VBUS power usage
- * This call is used by gadget drivers during SET_CONFIGURATION calls,
- * reporting how much power the device may consume. For example, this
- * could affect how quickly batteries are recharged.
- *
- * Returns zero on success, else negative errno.
- */
-static int mv_u3d_vbus_draw(struct usb_gadget *gadget, unsigned mA)
-{
- struct mv_u3d *u3d = container_of(gadget, struct mv_u3d, gadget);
-
- u3d->power = mA;
-
- return 0;
-}
-
-static int mv_u3d_pullup(struct usb_gadget *gadget, int is_on)
-{
- struct mv_u3d *u3d = container_of(gadget, struct mv_u3d, gadget);
- unsigned long flags;
- int retval = 0;
-
- spin_lock_irqsave(&u3d->lock, flags);
-
- dev_dbg(u3d->dev, "%s: softconnect %d, vbus_active %d\n",
- __func__, u3d->softconnect, u3d->vbus_active);
- u3d->softconnect = (is_on != 0);
- if (u3d->driver && u3d->softconnect && u3d->vbus_active) {
- retval = mv_u3d_enable(u3d);
- if (retval == 0) {
- /*
- * after clock is disabled, we lost all the register
- * context. We have to re-init registers
- */
- mv_u3d_controller_reset(u3d);
- mv_u3d_ep0_reset(u3d);
- mv_u3d_controller_start(u3d);
- }
- } else if (u3d->driver && u3d->vbus_active) {
- /* stop all the transfer in queue*/
- mv_u3d_stop_activity(u3d, u3d->driver);
- mv_u3d_controller_stop(u3d);
- mv_u3d_disable(u3d);
- }
-
- spin_unlock_irqrestore(&u3d->lock, flags);
-
- return retval;
-}
-
-static int mv_u3d_start(struct usb_gadget *g,
- struct usb_gadget_driver *driver)
-{
- struct mv_u3d *u3d = container_of(g, struct mv_u3d, gadget);
- struct mv_usb_platform_data *pdata = dev_get_platdata(u3d->dev);
- unsigned long flags;
-
- if (u3d->driver)
- return -EBUSY;
-
- spin_lock_irqsave(&u3d->lock, flags);
-
- if (!u3d->clock_gating) {
- clk_enable(u3d->clk);
- if (pdata->phy_init)
- pdata->phy_init(u3d->phy_regs);
- }
-
- /* hook up the driver ... */
- u3d->driver = driver;
-
- u3d->ep0_dir = USB_DIR_OUT;
-
- spin_unlock_irqrestore(&u3d->lock, flags);
-
- u3d->vbus_valid_detect = 1;
-
- return 0;
-}
-
-static int mv_u3d_stop(struct usb_gadget *g)
-{
- struct mv_u3d *u3d = container_of(g, struct mv_u3d, gadget);
- struct mv_usb_platform_data *pdata = dev_get_platdata(u3d->dev);
- unsigned long flags;
-
- u3d->vbus_valid_detect = 0;
- spin_lock_irqsave(&u3d->lock, flags);
-
- /* enable clock to access controller register */
- clk_enable(u3d->clk);
- if (pdata->phy_init)
- pdata->phy_init(u3d->phy_regs);
-
- mv_u3d_controller_stop(u3d);
- /* stop all usb activities */
- u3d->gadget.speed = USB_SPEED_UNKNOWN;
- mv_u3d_stop_activity(u3d, NULL);
- mv_u3d_disable(u3d);
-
- if (pdata->phy_deinit)
- pdata->phy_deinit(u3d->phy_regs);
- clk_disable(u3d->clk);
-
- spin_unlock_irqrestore(&u3d->lock, flags);
-
- u3d->driver = NULL;
-
- return 0;
-}
-
-/* device controller usb_gadget_ops structure */
-static const struct usb_gadget_ops mv_u3d_ops = {
- /* notify controller that VBUS is powered or not */
- .vbus_session = mv_u3d_vbus_session,
-
- /* constrain controller's VBUS power usage */
- .vbus_draw = mv_u3d_vbus_draw,
-
- .pullup = mv_u3d_pullup,
- .udc_start = mv_u3d_start,
- .udc_stop = mv_u3d_stop,
-};
-
-static int mv_u3d_eps_init(struct mv_u3d *u3d)
-{
- struct mv_u3d_ep *ep;
- char name[14];
- int i;
-
- /* initialize ep0, ep0 in/out use eps[1] */
- ep = &u3d->eps[1];
- ep->u3d = u3d;
- strscpy(ep->name, "ep0");
- ep->ep.name = ep->name;
- ep->ep.ops = &mv_u3d_ep_ops;
- ep->wedge = 0;
- usb_ep_set_maxpacket_limit(&ep->ep, MV_U3D_EP0_MAX_PKT_SIZE);
- ep->ep.caps.type_control = true;
- ep->ep.caps.dir_in = true;
- ep->ep.caps.dir_out = true;
- ep->ep_num = 0;
- ep->ep.desc = &mv_u3d_ep0_desc;
- INIT_LIST_HEAD(&ep->queue);
- INIT_LIST_HEAD(&ep->req_list);
- ep->ep_type = USB_ENDPOINT_XFER_CONTROL;
-
- /* add ep0 ep_context */
- ep->ep_context = &u3d->ep_context[1];
-
- /* initialize other endpoints */
- for (i = 2; i < u3d->max_eps * 2; i++) {
- ep = &u3d->eps[i];
- if (i & 1) {
- snprintf(name, sizeof(name), "ep%din", i >> 1);
- ep->direction = MV_U3D_EP_DIR_IN;
- ep->ep.caps.dir_in = true;
- } else {
- snprintf(name, sizeof(name), "ep%dout", i >> 1);
- ep->direction = MV_U3D_EP_DIR_OUT;
- ep->ep.caps.dir_out = true;
- }
- ep->u3d = u3d;
- strscpy(ep->name, name);
- ep->ep.name = ep->name;
-
- ep->ep.caps.type_iso = true;
- ep->ep.caps.type_bulk = true;
- ep->ep.caps.type_int = true;
-
- ep->ep.ops = &mv_u3d_ep_ops;
- usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
- ep->ep_num = i / 2;
-
- INIT_LIST_HEAD(&ep->queue);
- list_add_tail(&ep->ep.ep_list, &u3d->gadget.ep_list);
-
- INIT_LIST_HEAD(&ep->req_list);
- spin_lock_init(&ep->req_lock);
- ep->ep_context = &u3d->ep_context[i];
- }
-
- return 0;
-}
-
-/* delete all endpoint requests, called with spinlock held */
-static void mv_u3d_nuke(struct mv_u3d_ep *ep, int status)
-{
- /* endpoint fifo flush */
- mv_u3d_ep_fifo_flush(&ep->ep);
-
- while (!list_empty(&ep->queue)) {
- struct mv_u3d_req *req = NULL;
- req = list_entry(ep->queue.next, struct mv_u3d_req, queue);
- mv_u3d_done(ep, req, status);
- }
-}
-
-/* stop all USB activities */
-static
-void mv_u3d_stop_activity(struct mv_u3d *u3d, struct usb_gadget_driver *driver)
-{
- struct mv_u3d_ep *ep;
-
- mv_u3d_nuke(&u3d->eps[1], -ESHUTDOWN);
-
- list_for_each_entry(ep, &u3d->gadget.ep_list, ep.ep_list) {
- mv_u3d_nuke(ep, -ESHUTDOWN);
- }
-
- /* report disconnect; the driver is already quiesced */
- if (driver) {
- spin_unlock(&u3d->lock);
- driver->disconnect(&u3d->gadget);
- spin_lock(&u3d->lock);
- }
-}
-
-static void mv_u3d_irq_process_error(struct mv_u3d *u3d)
-{
- /* Increment the error count */
- u3d->errors++;
- dev_err(u3d->dev, "%s\n", __func__);
-}
-
-static void mv_u3d_irq_process_link_change(struct mv_u3d *u3d)
-{
- u32 linkchange;
-
- linkchange = ioread32(&u3d->vuc_regs->linkchange);
- iowrite32(linkchange, &u3d->vuc_regs->linkchange);
-
- dev_dbg(u3d->dev, "linkchange: 0x%x\n", linkchange);
-
- if (linkchange & MV_U3D_LINK_CHANGE_LINK_UP) {
- dev_dbg(u3d->dev, "link up: ltssm state: 0x%x\n",
- ioread32(&u3d->vuc_regs->ltssmstate));
-
- u3d->usb_state = USB_STATE_DEFAULT;
- u3d->ep0_dir = MV_U3D_EP_DIR_OUT;
- u3d->ep0_state = MV_U3D_WAIT_FOR_SETUP;
-
- /* set speed */
- u3d->gadget.speed = USB_SPEED_SUPER;
- }
-
- if (linkchange & MV_U3D_LINK_CHANGE_SUSPEND) {
- dev_dbg(u3d->dev, "link suspend\n");
- u3d->resume_state = u3d->usb_state;
- u3d->usb_state = USB_STATE_SUSPENDED;
- }
-
- if (linkchange & MV_U3D_LINK_CHANGE_RESUME) {
- dev_dbg(u3d->dev, "link resume\n");
- u3d->usb_state = u3d->resume_state;
- u3d->resume_state = 0;
- }
-
- if (linkchange & MV_U3D_LINK_CHANGE_WRESET) {
- dev_dbg(u3d->dev, "warm reset\n");
- u3d->usb_state = USB_STATE_POWERED;
- }
-
- if (linkchange & MV_U3D_LINK_CHANGE_HRESET) {
- dev_dbg(u3d->dev, "hot reset\n");
- u3d->usb_state = USB_STATE_DEFAULT;
- }
-
- if (linkchange & MV_U3D_LINK_CHANGE_INACT)
- dev_dbg(u3d->dev, "inactive\n");
-
- if (linkchange & MV_U3D_LINK_CHANGE_DISABLE_AFTER_U0)
- dev_dbg(u3d->dev, "ss.disabled\n");
-
- if (linkchange & MV_U3D_LINK_CHANGE_VBUS_INVALID) {
- dev_dbg(u3d->dev, "vbus invalid\n");
- u3d->usb_state = USB_STATE_ATTACHED;
- u3d->vbus_valid_detect = 1;
- /* if external vbus detect is not supported,
- * we handle it here.
- */
- if (!u3d->vbus) {
- spin_unlock(&u3d->lock);
- mv_u3d_vbus_session(&u3d->gadget, 0);
- spin_lock(&u3d->lock);
- }
- }
-}
-
-static void mv_u3d_ch9setaddress(struct mv_u3d *u3d,
- struct usb_ctrlrequest *setup)
-{
- u32 tmp;
-
- if (u3d->usb_state != USB_STATE_DEFAULT) {
- dev_err(u3d->dev,
- "%s, cannot setaddr in this state (%d)\n",
- __func__, u3d->usb_state);
- goto err;
- }
-
- u3d->dev_addr = (u8)setup->wValue;
-
- dev_dbg(u3d->dev, "%s: 0x%x\n", __func__, u3d->dev_addr);
-
- if (u3d->dev_addr > 127) {
- dev_err(u3d->dev,
- "%s, u3d address is wrong (out of range)\n", __func__);
- u3d->dev_addr = 0;
- goto err;
- }
-
- /* update usb state */
- u3d->usb_state = USB_STATE_ADDRESS;
-
- /* set the new address */
- tmp = ioread32(&u3d->vuc_regs->devaddrtiebrkr);
- tmp &= ~0x7F;
- tmp |= (u32)u3d->dev_addr;
- iowrite32(tmp, &u3d->vuc_regs->devaddrtiebrkr);
-
- return;
-err:
- mv_u3d_ep0_stall(u3d);
-}
-
-static int mv_u3d_is_set_configuration(struct usb_ctrlrequest *setup)
-{
- if ((setup->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD)
- if (setup->bRequest == USB_REQ_SET_CONFIGURATION)
- return 1;
-
- return 0;
-}
-
-static void mv_u3d_handle_setup_packet(struct mv_u3d *u3d, u8 ep_num,
- struct usb_ctrlrequest *setup)
- __releases(&u3c->lock)
- __acquires(&u3c->lock)
-{
- bool delegate = false;
-
- mv_u3d_nuke(&u3d->eps[ep_num * 2 + MV_U3D_EP_DIR_IN], -ESHUTDOWN);
-
- dev_dbg(u3d->dev, "SETUP %02x.%02x v%04x i%04x l%04x\n",
- setup->bRequestType, setup->bRequest,
- setup->wValue, setup->wIndex, setup->wLength);
-
- /* We process some stardard setup requests here */
- if ((setup->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
- switch (setup->bRequest) {
- case USB_REQ_GET_STATUS:
- delegate = true;
- break;
-
- case USB_REQ_SET_ADDRESS:
- mv_u3d_ch9setaddress(u3d, setup);
- break;
-
- case USB_REQ_CLEAR_FEATURE:
- delegate = true;
- break;
-
- case USB_REQ_SET_FEATURE:
- delegate = true;
- break;
-
- default:
- delegate = true;
- }
- } else
- delegate = true;
-
- /* delegate USB standard requests to the gadget driver */
- if (delegate) {
- /* USB requests handled by gadget */
- if (setup->wLength) {
- /* DATA phase from gadget, STATUS phase from u3d */
- u3d->ep0_dir = (setup->bRequestType & USB_DIR_IN)
- ? MV_U3D_EP_DIR_IN : MV_U3D_EP_DIR_OUT;
- spin_unlock(&u3d->lock);
- if (u3d->driver->setup(&u3d->gadget,
- &u3d->local_setup_buff) < 0) {
- dev_err(u3d->dev, "setup error!\n");
- mv_u3d_ep0_stall(u3d);
- }
- spin_lock(&u3d->lock);
- } else {
- /* no DATA phase, STATUS phase from gadget */
- u3d->ep0_dir = MV_U3D_EP_DIR_IN;
- u3d->ep0_state = MV_U3D_STATUS_STAGE;
- spin_unlock(&u3d->lock);
- if (u3d->driver->setup(&u3d->gadget,
- &u3d->local_setup_buff) < 0)
- mv_u3d_ep0_stall(u3d);
- spin_lock(&u3d->lock);
- }
-
- if (mv_u3d_is_set_configuration(setup)) {
- dev_dbg(u3d->dev, "u3d configured\n");
- u3d->usb_state = USB_STATE_CONFIGURED;
- }
- }
-}
-
-static void mv_u3d_get_setup_data(struct mv_u3d *u3d, u8 ep_num, u8 *buffer_ptr)
-{
- struct mv_u3d_ep_context *epcontext;
-
- epcontext = &u3d->ep_context[ep_num * 2 + MV_U3D_EP_DIR_IN];
-
- /* Copy the setup packet to local buffer */
- memcpy(buffer_ptr, (u8 *) &epcontext->setup_buffer, 8);
-}
-
-static void mv_u3d_irq_process_setup(struct mv_u3d *u3d)
-{
- u32 tmp, i;
- /* Process all Setup packet received interrupts */
- tmp = ioread32(&u3d->vuc_regs->setuplock);
- if (tmp) {
- for (i = 0; i < u3d->max_eps; i++) {
- if (tmp & (1 << i)) {
- mv_u3d_get_setup_data(u3d, i,
- (u8 *)(&u3d->local_setup_buff));
- mv_u3d_handle_setup_packet(u3d, i,
- &u3d->local_setup_buff);
- }
- }
- }
-
- iowrite32(tmp, &u3d->vuc_regs->setuplock);
-}
-
-static void mv_u3d_irq_process_tr_complete(struct mv_u3d *u3d)
-{
- u32 tmp, bit_pos;
- int i, ep_num = 0, direction = 0;
- struct mv_u3d_ep *curr_ep;
- struct mv_u3d_req *curr_req, *temp_req;
- int status;
-
- tmp = ioread32(&u3d->vuc_regs->endcomplete);
-
- dev_dbg(u3d->dev, "tr_complete: ep: 0x%x\n", tmp);
- if (!tmp)
- return;
- iowrite32(tmp, &u3d->vuc_regs->endcomplete);
-
- for (i = 0; i < u3d->max_eps * 2; i++) {
- ep_num = i >> 1;
- direction = i % 2;
-
- bit_pos = 1 << (ep_num + 16 * direction);
-
- if (!(bit_pos & tmp))
- continue;
-
- if (i == 0)
- curr_ep = &u3d->eps[1];
- else
- curr_ep = &u3d->eps[i];
-
- /* remove req out of ep request list after completion */
- dev_dbg(u3d->dev, "tr comp: check req_list\n");
- spin_lock(&curr_ep->req_lock);
- if (!list_empty(&curr_ep->req_list)) {
- struct mv_u3d_req *req;
- req = list_entry(curr_ep->req_list.next,
- struct mv_u3d_req, list);
- list_del_init(&req->list);
- curr_ep->processing = 0;
- }
- spin_unlock(&curr_ep->req_lock);
-
- /* process the req queue until an uncomplete request */
- list_for_each_entry_safe(curr_req, temp_req,
- &curr_ep->queue, queue) {
- status = mv_u3d_process_ep_req(u3d, i, curr_req);
- if (status)
- break;
- /* write back status to req */
- curr_req->req.status = status;
-
- /* ep0 request completion */
- if (ep_num == 0) {
- mv_u3d_done(curr_ep, curr_req, 0);
- break;
- } else {
- mv_u3d_done(curr_ep, curr_req, status);
- }
- }
-
- dev_dbg(u3d->dev, "call mv_u3d_start_queue from ep complete\n");
- mv_u3d_start_queue(curr_ep);
- }
-}
-
-static irqreturn_t mv_u3d_irq(int irq, void *dev)
-{
- struct mv_u3d *u3d = (struct mv_u3d *)dev;
- u32 status, intr;
- u32 bridgesetting;
- u32 trbunderrun;
-
- spin_lock(&u3d->lock);
-
- status = ioread32(&u3d->vuc_regs->intrcause);
- intr = ioread32(&u3d->vuc_regs->intrenable);
- status &= intr;
-
- if (status == 0) {
- spin_unlock(&u3d->lock);
- dev_err(u3d->dev, "irq error!\n");
- return IRQ_NONE;
- }
-
- if (status & MV_U3D_USBINT_VBUS_VALID) {
- bridgesetting = ioread32(&u3d->vuc_regs->bridgesetting);
- if (bridgesetting & MV_U3D_BRIDGE_SETTING_VBUS_VALID) {
- /* write vbus valid bit of bridge setting to clear */
- bridgesetting = MV_U3D_BRIDGE_SETTING_VBUS_VALID;
- iowrite32(bridgesetting, &u3d->vuc_regs->bridgesetting);
- dev_dbg(u3d->dev, "vbus valid\n");
-
- u3d->usb_state = USB_STATE_POWERED;
- u3d->vbus_valid_detect = 0;
- /* if external vbus detect is not supported,
- * we handle it here.
- */
- if (!u3d->vbus) {
- spin_unlock(&u3d->lock);
- mv_u3d_vbus_session(&u3d->gadget, 1);
- spin_lock(&u3d->lock);
- }
- } else
- dev_err(u3d->dev, "vbus bit is not set\n");
- }
-
- /* RX data is already in the 16KB FIFO.*/
- if (status & MV_U3D_USBINT_UNDER_RUN) {
- trbunderrun = ioread32(&u3d->vuc_regs->trbunderrun);
- dev_err(u3d->dev, "under run, ep%d\n", trbunderrun);
- iowrite32(trbunderrun, &u3d->vuc_regs->trbunderrun);
- mv_u3d_irq_process_error(u3d);
- }
-
- if (status & (MV_U3D_USBINT_RXDESC_ERR | MV_U3D_USBINT_TXDESC_ERR)) {
- /* write one to clear */
- iowrite32(status & (MV_U3D_USBINT_RXDESC_ERR
- | MV_U3D_USBINT_TXDESC_ERR),
- &u3d->vuc_regs->intrcause);
- dev_err(u3d->dev, "desc err 0x%x\n", status);
- mv_u3d_irq_process_error(u3d);
- }
-
- if (status & MV_U3D_USBINT_LINK_CHG)
- mv_u3d_irq_process_link_change(u3d);
-
- if (status & MV_U3D_USBINT_TX_COMPLETE)
- mv_u3d_irq_process_tr_complete(u3d);
-
- if (status & MV_U3D_USBINT_RX_COMPLETE)
- mv_u3d_irq_process_tr_complete(u3d);
-
- if (status & MV_U3D_USBINT_SETUP)
- mv_u3d_irq_process_setup(u3d);
-
- spin_unlock(&u3d->lock);
- return IRQ_HANDLED;
-}
-
-static void mv_u3d_remove(struct platform_device *dev)
-{
- struct mv_u3d *u3d = platform_get_drvdata(dev);
-
- BUG_ON(u3d == NULL);
-
- usb_del_gadget_udc(&u3d->gadget);
-
- /* free memory allocated in probe */
- dma_pool_destroy(u3d->trb_pool);
-
- if (u3d->ep_context)
- dma_free_coherent(&dev->dev, u3d->ep_context_size,
- u3d->ep_context, u3d->ep_context_dma);
-
- kfree(u3d->eps);
-
- if (u3d->irq)
- free_irq(u3d->irq, u3d);
-
- if (u3d->cap_regs)
- iounmap(u3d->cap_regs);
- u3d->cap_regs = NULL;
-
- kfree(u3d->status_req);
-
- clk_put(u3d->clk);
-
- kfree(u3d);
-}
-
-static int mv_u3d_probe(struct platform_device *dev)
-{
- struct mv_u3d *u3d;
- struct mv_usb_platform_data *pdata = dev_get_platdata(&dev->dev);
- int retval = 0;
- struct resource *r;
- size_t size;
-
- if (!dev_get_platdata(&dev->dev)) {
- dev_err(&dev->dev, "missing platform_data\n");
- retval = -ENODEV;
- goto err_pdata;
- }
-
- u3d = kzalloc(sizeof(*u3d), GFP_KERNEL);
- if (!u3d) {
- retval = -ENOMEM;
- goto err_alloc_private;
- }
-
- spin_lock_init(&u3d->lock);
-
- platform_set_drvdata(dev, u3d);
-
- u3d->dev = &dev->dev;
- u3d->vbus = pdata->vbus;
-
- u3d->clk = clk_get(&dev->dev, NULL);
- if (IS_ERR(u3d->clk)) {
- retval = PTR_ERR(u3d->clk);
- goto err_get_clk;
- }
-
- r = platform_get_resource_byname(dev, IORESOURCE_MEM, "capregs");
- if (!r) {
- dev_err(&dev->dev, "no I/O memory resource defined\n");
- retval = -ENODEV;
- goto err_get_cap_regs;
- }
-
- u3d->cap_regs = (struct mv_u3d_cap_regs __iomem *)
- ioremap(r->start, resource_size(r));
- if (!u3d->cap_regs) {
- dev_err(&dev->dev, "failed to map I/O memory\n");
- retval = -EBUSY;
- goto err_map_cap_regs;
- } else {
- dev_dbg(&dev->dev, "cap_regs address: 0x%lx/0x%lx\n",
- (unsigned long) r->start,
- (unsigned long) u3d->cap_regs);
- }
-
- /* we will access controller register, so enable the u3d controller */
- retval = clk_enable(u3d->clk);
- if (retval) {
- dev_err(&dev->dev, "clk_enable error %d\n", retval);
- goto err_u3d_enable;
- }
-
- if (pdata->phy_init) {
- retval = pdata->phy_init(u3d->phy_regs);
- if (retval) {
- dev_err(&dev->dev, "init phy error %d\n", retval);
- clk_disable(u3d->clk);
- goto err_phy_init;
- }
- }
-
- u3d->op_regs = (struct mv_u3d_op_regs __iomem *)(u3d->cap_regs
- + MV_U3D_USB3_OP_REGS_OFFSET);
-
- u3d->vuc_regs = (struct mv_u3d_vuc_regs __iomem *)(u3d->cap_regs
- + ioread32(&u3d->cap_regs->vuoff));
-
- u3d->max_eps = 16;
-
- /*
- * some platform will use usb to download image, it may not disconnect
- * usb gadget before loading kernel. So first stop u3d here.
- */
- mv_u3d_controller_stop(u3d);
- iowrite32(0xFFFFFFFF, &u3d->vuc_regs->intrcause);
-
- if (pdata->phy_deinit)
- pdata->phy_deinit(u3d->phy_regs);
- clk_disable(u3d->clk);
-
- size = u3d->max_eps * sizeof(struct mv_u3d_ep_context) * 2;
- size = (size + MV_U3D_EP_CONTEXT_ALIGNMENT - 1)
- & ~(MV_U3D_EP_CONTEXT_ALIGNMENT - 1);
- u3d->ep_context = dma_alloc_coherent(&dev->dev, size,
- &u3d->ep_context_dma, GFP_KERNEL);
- if (!u3d->ep_context) {
- dev_err(&dev->dev, "allocate ep context memory failed\n");
- retval = -ENOMEM;
- goto err_alloc_ep_context;
- }
- u3d->ep_context_size = size;
-
- /* create TRB dma_pool resource */
- u3d->trb_pool = dma_pool_create("u3d_trb",
- &dev->dev,
- sizeof(struct mv_u3d_trb_hw),
- MV_U3D_TRB_ALIGNMENT,
- MV_U3D_DMA_BOUNDARY);
-
- if (!u3d->trb_pool) {
- retval = -ENOMEM;
- goto err_alloc_trb_pool;
- }
-
- size = u3d->max_eps * sizeof(struct mv_u3d_ep) * 2;
- u3d->eps = kzalloc(size, GFP_KERNEL);
- if (!u3d->eps) {
- retval = -ENOMEM;
- goto err_alloc_eps;
- }
-
- /* initialize ep0 status request structure */
- u3d->status_req = kzalloc(sizeof(struct mv_u3d_req) + 8, GFP_KERNEL);
- if (!u3d->status_req) {
- retval = -ENOMEM;
- goto err_alloc_status_req;
- }
- INIT_LIST_HEAD(&u3d->status_req->queue);
-
- /* allocate a small amount of memory to get valid address */
- u3d->status_req->req.buf = (char *)u3d->status_req
- + sizeof(struct mv_u3d_req);
- u3d->status_req->req.dma = virt_to_phys(u3d->status_req->req.buf);
-
- u3d->resume_state = USB_STATE_NOTATTACHED;
- u3d->usb_state = USB_STATE_ATTACHED;
- u3d->ep0_dir = MV_U3D_EP_DIR_OUT;
- u3d->remote_wakeup = 0;
-
- r = platform_get_resource(dev, IORESOURCE_IRQ, 0);
- if (!r) {
- dev_err(&dev->dev, "no IRQ resource defined\n");
- retval = -ENODEV;
- goto err_get_irq;
- }
- u3d->irq = r->start;
-
- /* initialize gadget structure */
- u3d->gadget.ops = &mv_u3d_ops; /* usb_gadget_ops */
- u3d->gadget.ep0 = &u3d->eps[1].ep; /* gadget ep0 */
- INIT_LIST_HEAD(&u3d->gadget.ep_list); /* ep_list */
- u3d->gadget.speed = USB_SPEED_UNKNOWN; /* speed */
-
- /* the "gadget" abstracts/virtualizes the controller */
- u3d->gadget.name = driver_name; /* gadget name */
-
- mv_u3d_eps_init(u3d);
-
- if (request_irq(u3d->irq, mv_u3d_irq,
- IRQF_SHARED, driver_name, u3d)) {
- u3d->irq = 0;
- dev_err(&dev->dev, "Request irq %d for u3d failed\n",
- u3d->irq);
- retval = -ENODEV;
- goto err_request_irq;
- }
-
- /* external vbus detection */
- if (u3d->vbus) {
- u3d->clock_gating = 1;
- dev_err(&dev->dev, "external vbus detection\n");
- }
-
- if (!u3d->clock_gating)
- u3d->vbus_active = 1;
-
- /* enable usb3 controller vbus detection */
- u3d->vbus_valid_detect = 1;
-
- retval = usb_add_gadget_udc(&dev->dev, &u3d->gadget);
- if (retval)
- goto err_unregister;
-
- dev_dbg(&dev->dev, "successful probe usb3 device %s clock gating.\n",
- u3d->clock_gating ? "with" : "without");
-
- return 0;
-
-err_unregister:
- free_irq(u3d->irq, u3d);
-err_get_irq:
-err_request_irq:
- kfree(u3d->status_req);
-err_alloc_status_req:
- kfree(u3d->eps);
-err_alloc_eps:
- dma_pool_destroy(u3d->trb_pool);
-err_alloc_trb_pool:
- dma_free_coherent(&dev->dev, u3d->ep_context_size,
- u3d->ep_context, u3d->ep_context_dma);
-err_alloc_ep_context:
-err_phy_init:
-err_u3d_enable:
- iounmap(u3d->cap_regs);
-err_map_cap_regs:
-err_get_cap_regs:
- clk_put(u3d->clk);
-err_get_clk:
- kfree(u3d);
-err_alloc_private:
-err_pdata:
- return retval;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int mv_u3d_suspend(struct device *dev)
-{
- struct mv_u3d *u3d = dev_get_drvdata(dev);
-
- /*
- * only cable is unplugged, usb can suspend.
- * So do not care about clock_gating == 1, it is handled by
- * vbus session.
- */
- if (!u3d->clock_gating) {
- mv_u3d_controller_stop(u3d);
-
- spin_lock_irq(&u3d->lock);
- /* stop all usb activities */
- mv_u3d_stop_activity(u3d, u3d->driver);
- spin_unlock_irq(&u3d->lock);
-
- mv_u3d_disable(u3d);
- }
-
- return 0;
-}
-
-static int mv_u3d_resume(struct device *dev)
-{
- struct mv_u3d *u3d = dev_get_drvdata(dev);
- int retval;
-
- if (!u3d->clock_gating) {
- retval = mv_u3d_enable(u3d);
- if (retval)
- return retval;
-
- if (u3d->driver && u3d->softconnect) {
- mv_u3d_controller_reset(u3d);
- mv_u3d_ep0_reset(u3d);
- mv_u3d_controller_start(u3d);
- }
- }
-
- return 0;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(mv_u3d_pm_ops, mv_u3d_suspend, mv_u3d_resume);
-
-static void mv_u3d_shutdown(struct platform_device *dev)
-{
- struct mv_u3d *u3d = platform_get_drvdata(dev);
- u32 tmp;
-
- tmp = ioread32(&u3d->op_regs->usbcmd);
- tmp &= ~MV_U3D_CMD_RUN_STOP;
- iowrite32(tmp, &u3d->op_regs->usbcmd);
-}
-
-static struct platform_driver mv_u3d_driver = {
- .probe = mv_u3d_probe,
- .remove = mv_u3d_remove,
- .shutdown = mv_u3d_shutdown,
- .driver = {
- .name = "mv-u3d",
- .pm = &mv_u3d_pm_ops,
- },
-};
-
-module_platform_driver(mv_u3d_driver);
-MODULE_ALIAS("platform:mv-u3d");
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_AUTHOR("Yu Xu <yuxu@...vell.com>");
-MODULE_LICENSE("GPL");
diff --git a/drivers/usb/gadget/udc/mv_udc.h b/drivers/usb/gadget/udc/mv_udc.h
deleted file mode 100644
index b3f759c0962c..000000000000
--- a/drivers/usb/gadget/udc/mv_udc.h
+++ /dev/null
@@ -1,309 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
- */
-
-#ifndef __MV_UDC_H
-#define __MV_UDC_H
-
-#define VUSBHS_MAX_PORTS 8
-
-#define DQH_ALIGNMENT 2048
-#define DTD_ALIGNMENT 64
-#define DMA_BOUNDARY 4096
-
-#define EP_DIR_IN 1
-#define EP_DIR_OUT 0
-
-#define DMA_ADDR_INVALID (~(dma_addr_t)0)
-
-#define EP0_MAX_PKT_SIZE 64
-/* ep0 transfer state */
-#define WAIT_FOR_SETUP 0
-#define DATA_STATE_XMIT 1
-#define DATA_STATE_NEED_ZLP 2
-#define WAIT_FOR_OUT_STATUS 3
-#define DATA_STATE_RECV 4
-
-#define CAPLENGTH_MASK (0xff)
-#define DCCPARAMS_DEN_MASK (0x1f)
-
-#define HCSPARAMS_PPC (0x10)
-
-/* Frame Index Register Bit Masks */
-#define USB_FRINDEX_MASKS 0x3fff
-
-/* Command Register Bit Masks */
-#define USBCMD_RUN_STOP (0x00000001)
-#define USBCMD_CTRL_RESET (0x00000002)
-#define USBCMD_SETUP_TRIPWIRE_SET (0x00002000)
-#define USBCMD_SETUP_TRIPWIRE_CLEAR (~USBCMD_SETUP_TRIPWIRE_SET)
-
-#define USBCMD_ATDTW_TRIPWIRE_SET (0x00004000)
-#define USBCMD_ATDTW_TRIPWIRE_CLEAR (~USBCMD_ATDTW_TRIPWIRE_SET)
-
-/* bit 15,3,2 are for frame list size */
-#define USBCMD_FRAME_SIZE_1024 (0x00000000) /* 000 */
-#define USBCMD_FRAME_SIZE_512 (0x00000004) /* 001 */
-#define USBCMD_FRAME_SIZE_256 (0x00000008) /* 010 */
-#define USBCMD_FRAME_SIZE_128 (0x0000000C) /* 011 */
-#define USBCMD_FRAME_SIZE_64 (0x00008000) /* 100 */
-#define USBCMD_FRAME_SIZE_32 (0x00008004) /* 101 */
-#define USBCMD_FRAME_SIZE_16 (0x00008008) /* 110 */
-#define USBCMD_FRAME_SIZE_8 (0x0000800C) /* 111 */
-
-#define EPCTRL_TX_ALL_MASK (0xFFFF0000)
-#define EPCTRL_RX_ALL_MASK (0x0000FFFF)
-
-#define EPCTRL_TX_DATA_TOGGLE_RST (0x00400000)
-#define EPCTRL_TX_EP_STALL (0x00010000)
-#define EPCTRL_RX_EP_STALL (0x00000001)
-#define EPCTRL_RX_DATA_TOGGLE_RST (0x00000040)
-#define EPCTRL_RX_ENABLE (0x00000080)
-#define EPCTRL_TX_ENABLE (0x00800000)
-#define EPCTRL_CONTROL (0x00000000)
-#define EPCTRL_ISOCHRONOUS (0x00040000)
-#define EPCTRL_BULK (0x00080000)
-#define EPCTRL_INT (0x000C0000)
-#define EPCTRL_TX_TYPE (0x000C0000)
-#define EPCTRL_RX_TYPE (0x0000000C)
-#define EPCTRL_DATA_TOGGLE_INHIBIT (0x00000020)
-#define EPCTRL_TX_EP_TYPE_SHIFT (18)
-#define EPCTRL_RX_EP_TYPE_SHIFT (2)
-
-#define EPCOMPLETE_MAX_ENDPOINTS (16)
-
-/* endpoint list address bit masks */
-#define USB_EP_LIST_ADDRESS_MASK 0xfffff800
-
-#define PORTSCX_W1C_BITS 0x2a
-#define PORTSCX_PORT_RESET 0x00000100
-#define PORTSCX_PORT_POWER 0x00001000
-#define PORTSCX_FORCE_FULL_SPEED_CONNECT 0x01000000
-#define PORTSCX_PAR_XCVR_SELECT 0xC0000000
-#define PORTSCX_PORT_FORCE_RESUME 0x00000040
-#define PORTSCX_PORT_SUSPEND 0x00000080
-#define PORTSCX_PORT_SPEED_FULL 0x00000000
-#define PORTSCX_PORT_SPEED_LOW 0x04000000
-#define PORTSCX_PORT_SPEED_HIGH 0x08000000
-#define PORTSCX_PORT_SPEED_MASK 0x0C000000
-
-/* USB MODE Register Bit Masks */
-#define USBMODE_CTRL_MODE_IDLE 0x00000000
-#define USBMODE_CTRL_MODE_DEVICE 0x00000002
-#define USBMODE_CTRL_MODE_HOST 0x00000003
-#define USBMODE_CTRL_MODE_RSV 0x00000001
-#define USBMODE_SETUP_LOCK_OFF 0x00000008
-#define USBMODE_STREAM_DISABLE 0x00000010
-
-/* USB STS Register Bit Masks */
-#define USBSTS_INT 0x00000001
-#define USBSTS_ERR 0x00000002
-#define USBSTS_PORT_CHANGE 0x00000004
-#define USBSTS_FRM_LST_ROLL 0x00000008
-#define USBSTS_SYS_ERR 0x00000010
-#define USBSTS_IAA 0x00000020
-#define USBSTS_RESET 0x00000040
-#define USBSTS_SOF 0x00000080
-#define USBSTS_SUSPEND 0x00000100
-#define USBSTS_HC_HALTED 0x00001000
-#define USBSTS_RCL 0x00002000
-#define USBSTS_PERIODIC_SCHEDULE 0x00004000
-#define USBSTS_ASYNC_SCHEDULE 0x00008000
-
-
-/* Interrupt Enable Register Bit Masks */
-#define USBINTR_INT_EN (0x00000001)
-#define USBINTR_ERR_INT_EN (0x00000002)
-#define USBINTR_PORT_CHANGE_DETECT_EN (0x00000004)
-
-#define USBINTR_ASYNC_ADV_AAE (0x00000020)
-#define USBINTR_ASYNC_ADV_AAE_ENABLE (0x00000020)
-#define USBINTR_ASYNC_ADV_AAE_DISABLE (0xFFFFFFDF)
-
-#define USBINTR_RESET_EN (0x00000040)
-#define USBINTR_SOF_UFRAME_EN (0x00000080)
-#define USBINTR_DEVICE_SUSPEND (0x00000100)
-
-#define USB_DEVICE_ADDRESS_MASK (0xfe000000)
-#define USB_DEVICE_ADDRESS_BIT_SHIFT (25)
-
-struct mv_cap_regs {
- u32 caplength_hciversion;
- u32 hcsparams; /* HC structural parameters */
- u32 hccparams; /* HC Capability Parameters*/
- u32 reserved[5];
- u32 dciversion; /* DC version number and reserved 16 bits */
- u32 dccparams; /* DC Capability Parameters */
-};
-
-struct mv_op_regs {
- u32 usbcmd; /* Command register */
- u32 usbsts; /* Status register */
- u32 usbintr; /* Interrupt enable */
- u32 frindex; /* Frame index */
- u32 reserved1[1];
- u32 deviceaddr; /* Device Address */
- u32 eplistaddr; /* Endpoint List Address */
- u32 ttctrl; /* HOST TT status and control */
- u32 burstsize; /* Programmable Burst Size */
- u32 txfilltuning; /* Host Transmit Pre-Buffer Packet Tuning */
- u32 reserved[4];
- u32 epnak; /* Endpoint NAK */
- u32 epnaken; /* Endpoint NAK Enable */
- u32 configflag; /* Configured Flag register */
- u32 portsc[VUSBHS_MAX_PORTS]; /* Port Status/Control x, x = 1..8 */
- u32 otgsc;
- u32 usbmode; /* USB Host/Device mode */
- u32 epsetupstat; /* Endpoint Setup Status */
- u32 epprime; /* Endpoint Initialize */
- u32 epflush; /* Endpoint De-initialize */
- u32 epstatus; /* Endpoint Status */
- u32 epcomplete; /* Endpoint Interrupt On Complete */
- u32 epctrlx[16]; /* Endpoint Control, where x = 0.. 15 */
- u32 mcr; /* Mux Control */
- u32 isr; /* Interrupt Status */
- u32 ier; /* Interrupt Enable */
-};
-
-struct mv_udc {
- struct usb_gadget gadget;
- struct usb_gadget_driver *driver;
- spinlock_t lock;
- struct completion *done;
- struct platform_device *dev;
- int irq;
-
- struct mv_cap_regs __iomem *cap_regs;
- struct mv_op_regs __iomem *op_regs;
- void __iomem *phy_regs;
- unsigned int max_eps;
- struct mv_dqh *ep_dqh;
- size_t ep_dqh_size;
- dma_addr_t ep_dqh_dma;
-
- struct dma_pool *dtd_pool;
- struct mv_ep *eps;
-
- struct mv_dtd *dtd_head;
- struct mv_dtd *dtd_tail;
- unsigned int dtd_entries;
-
- struct mv_req *status_req;
- struct usb_ctrlrequest local_setup_buff;
-
- unsigned int resume_state; /* USB state to resume */
- unsigned int usb_state; /* USB current state */
- unsigned int ep0_state; /* Endpoint zero state */
- unsigned int ep0_dir;
-
- unsigned int dev_addr;
- unsigned int test_mode;
-
- int errors;
- unsigned softconnect:1,
- vbus_active:1,
- remote_wakeup:1,
- softconnected:1,
- force_fs:1,
- clock_gating:1,
- active:1,
- stopped:1; /* stop bit is setted */
-
- struct work_struct vbus_work;
- struct workqueue_struct *qwork;
-
- struct usb_phy *transceiver;
-
- struct mv_usb_platform_data *pdata;
-
- /* some SOC has mutiple clock sources for USB*/
- struct clk *clk;
-};
-
-/* endpoint data structure */
-struct mv_ep {
- struct usb_ep ep;
- struct mv_udc *udc;
- struct list_head queue;
- struct mv_dqh *dqh;
- u32 direction;
- char name[14];
- unsigned stopped:1,
- wedge:1,
- ep_type:2,
- ep_num:8;
-};
-
-/* request data structure */
-struct mv_req {
- struct usb_request req;
- struct mv_dtd *dtd, *head, *tail;
- struct mv_ep *ep;
- struct list_head queue;
- unsigned int test_mode;
- unsigned dtd_count;
- unsigned mapped:1;
-};
-
-#define EP_QUEUE_HEAD_MULT_POS 30
-#define EP_QUEUE_HEAD_ZLT_SEL 0x20000000
-#define EP_QUEUE_HEAD_MAX_PKT_LEN_POS 16
-#define EP_QUEUE_HEAD_MAX_PKT_LEN(ep_info) (((ep_info)>>16)&0x07ff)
-#define EP_QUEUE_HEAD_IOS 0x00008000
-#define EP_QUEUE_HEAD_NEXT_TERMINATE 0x00000001
-#define EP_QUEUE_HEAD_IOC 0x00008000
-#define EP_QUEUE_HEAD_MULTO 0x00000C00
-#define EP_QUEUE_HEAD_STATUS_HALT 0x00000040
-#define EP_QUEUE_HEAD_STATUS_ACTIVE 0x00000080
-#define EP_QUEUE_CURRENT_OFFSET_MASK 0x00000FFF
-#define EP_QUEUE_HEAD_NEXT_POINTER_MASK 0xFFFFFFE0
-#define EP_QUEUE_FRINDEX_MASK 0x000007FF
-#define EP_MAX_LENGTH_TRANSFER 0x4000
-
-struct mv_dqh {
- /* Bits 16..26 Bit 15 is Interrupt On Setup */
- u32 max_packet_length;
- u32 curr_dtd_ptr; /* Current dTD Pointer */
- u32 next_dtd_ptr; /* Next dTD Pointer */
- /* Total bytes (16..30), IOC (15), INT (8), STS (0-7) */
- u32 size_ioc_int_sts;
- u32 buff_ptr0; /* Buffer pointer Page 0 (12-31) */
- u32 buff_ptr1; /* Buffer pointer Page 1 (12-31) */
- u32 buff_ptr2; /* Buffer pointer Page 2 (12-31) */
- u32 buff_ptr3; /* Buffer pointer Page 3 (12-31) */
- u32 buff_ptr4; /* Buffer pointer Page 4 (12-31) */
- u32 reserved1;
- /* 8 bytes of setup data that follows the Setup PID */
- u8 setup_buffer[8];
- u32 reserved2[4];
-};
-
-
-#define DTD_NEXT_TERMINATE (0x00000001)
-#define DTD_IOC (0x00008000)
-#define DTD_STATUS_ACTIVE (0x00000080)
-#define DTD_STATUS_HALTED (0x00000040)
-#define DTD_STATUS_DATA_BUFF_ERR (0x00000020)
-#define DTD_STATUS_TRANSACTION_ERR (0x00000008)
-#define DTD_RESERVED_FIELDS (0x00007F00)
-#define DTD_ERROR_MASK (0x68)
-#define DTD_ADDR_MASK (0xFFFFFFE0)
-#define DTD_PACKET_SIZE 0x7FFF0000
-#define DTD_LENGTH_BIT_POS (16)
-
-struct mv_dtd {
- u32 dtd_next;
- u32 size_ioc_sts;
- u32 buff_ptr0; /* Buffer pointer Page 0 */
- u32 buff_ptr1; /* Buffer pointer Page 1 */
- u32 buff_ptr2; /* Buffer pointer Page 2 */
- u32 buff_ptr3; /* Buffer pointer Page 3 */
- u32 buff_ptr4; /* Buffer pointer Page 4 */
- u32 scratch_ptr;
- /* 32 bytes */
- dma_addr_t td_dma; /* dma address for this td */
- struct mv_dtd *next_dtd_virt;
-};
-
-#endif
diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c
deleted file mode 100644
index ff103e6b3048..000000000000
--- a/drivers/usb/gadget/udc/mv_udc_core.c
+++ /dev/null
@@ -1,2426 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
- * Author: Chao Xie <chao.xie@...vell.com>
- * Neil Zhang <zhangwm@...vell.com>
- */
-
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/dmapool.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/ioport.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/err.h>
-#include <linux/timer.h>
-#include <linux/list.h>
-#include <linux/interrupt.h>
-#include <linux/moduleparam.h>
-#include <linux/device.h>
-#include <linux/usb/ch9.h>
-#include <linux/usb/gadget.h>
-#include <linux/usb/otg.h>
-#include <linux/pm.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-#include <linux/platform_data/mv_usb.h>
-#include <linux/unaligned.h>
-
-#include "mv_udc.h"
-
-#define DRIVER_DESC "Marvell PXA USB Device Controller driver"
-
-#define ep_dir(ep) (((ep)->ep_num == 0) ? \
- ((ep)->udc->ep0_dir) : ((ep)->direction))
-
-/* timeout value -- usec */
-#define RESET_TIMEOUT 10000
-#define FLUSH_TIMEOUT 10000
-#define EPSTATUS_TIMEOUT 10000
-#define PRIME_TIMEOUT 10000
-#define READSAFE_TIMEOUT 1000
-
-#define LOOPS_USEC_SHIFT 1
-#define LOOPS_USEC (1 << LOOPS_USEC_SHIFT)
-#define LOOPS(timeout) ((timeout) >> LOOPS_USEC_SHIFT)
-
-static DECLARE_COMPLETION(release_done);
-
-static const char driver_name[] = "mv_udc";
-
-static void nuke(struct mv_ep *ep, int status);
-static void stop_activity(struct mv_udc *udc, struct usb_gadget_driver *driver);
-
-/* for endpoint 0 operations */
-static const struct usb_endpoint_descriptor mv_ep0_desc = {
- .bLength = USB_DT_ENDPOINT_SIZE,
- .bDescriptorType = USB_DT_ENDPOINT,
- .bEndpointAddress = 0,
- .bmAttributes = USB_ENDPOINT_XFER_CONTROL,
- .wMaxPacketSize = EP0_MAX_PKT_SIZE,
-};
-
-static void ep0_reset(struct mv_udc *udc)
-{
- struct mv_ep *ep;
- u32 epctrlx;
- int i = 0;
-
- /* ep0 in and out */
- for (i = 0; i < 2; i++) {
- ep = &udc->eps[i];
- ep->udc = udc;
-
- /* ep0 dQH */
- ep->dqh = &udc->ep_dqh[i];
-
- /* configure ep0 endpoint capabilities in dQH */
- ep->dqh->max_packet_length =
- (EP0_MAX_PKT_SIZE << EP_QUEUE_HEAD_MAX_PKT_LEN_POS)
- | EP_QUEUE_HEAD_IOS;
-
- ep->dqh->next_dtd_ptr = EP_QUEUE_HEAD_NEXT_TERMINATE;
-
- epctrlx = readl(&udc->op_regs->epctrlx[0]);
- if (i) { /* TX */
- epctrlx |= EPCTRL_TX_ENABLE
- | (USB_ENDPOINT_XFER_CONTROL
- << EPCTRL_TX_EP_TYPE_SHIFT);
-
- } else { /* RX */
- epctrlx |= EPCTRL_RX_ENABLE
- | (USB_ENDPOINT_XFER_CONTROL
- << EPCTRL_RX_EP_TYPE_SHIFT);
- }
-
- writel(epctrlx, &udc->op_regs->epctrlx[0]);
- }
-}
-
-/* protocol ep0 stall, will automatically be cleared on new transaction */
-static void ep0_stall(struct mv_udc *udc)
-{
- u32 epctrlx;
-
- /* set TX and RX to stall */
- epctrlx = readl(&udc->op_regs->epctrlx[0]);
- epctrlx |= EPCTRL_RX_EP_STALL | EPCTRL_TX_EP_STALL;
- writel(epctrlx, &udc->op_regs->epctrlx[0]);
-
- /* update ep0 state */
- udc->ep0_state = WAIT_FOR_SETUP;
- udc->ep0_dir = EP_DIR_OUT;
-}
-
-static int process_ep_req(struct mv_udc *udc, int index,
- struct mv_req *curr_req)
-{
- struct mv_dtd *curr_dtd;
- struct mv_dqh *curr_dqh;
- int actual, remaining_length;
- int i, direction;
- int retval = 0;
- u32 errors;
- u32 bit_pos;
-
- curr_dqh = &udc->ep_dqh[index];
- direction = index % 2;
-
- curr_dtd = curr_req->head;
- actual = curr_req->req.length;
-
- for (i = 0; i < curr_req->dtd_count; i++) {
- if (curr_dtd->size_ioc_sts & DTD_STATUS_ACTIVE) {
- dev_dbg(&udc->dev->dev, "%s, dTD not completed\n",
- udc->eps[index].name);
- return 1;
- }
-
- errors = curr_dtd->size_ioc_sts & DTD_ERROR_MASK;
- if (!errors) {
- remaining_length =
- (curr_dtd->size_ioc_sts & DTD_PACKET_SIZE)
- >> DTD_LENGTH_BIT_POS;
- actual -= remaining_length;
-
- if (remaining_length) {
- if (direction) {
- dev_dbg(&udc->dev->dev,
- "TX dTD remains data\n");
- retval = -EPROTO;
- break;
- } else
- break;
- }
- } else {
- dev_info(&udc->dev->dev,
- "complete_tr error: ep=%d %s: error = 0x%x\n",
- index >> 1, direction ? "SEND" : "RECV",
- errors);
- if (errors & DTD_STATUS_HALTED) {
- /* Clear the errors and Halt condition */
- curr_dqh->size_ioc_int_sts &= ~errors;
- retval = -EPIPE;
- } else if (errors & DTD_STATUS_DATA_BUFF_ERR) {
- retval = -EPROTO;
- } else if (errors & DTD_STATUS_TRANSACTION_ERR) {
- retval = -EILSEQ;
- }
- }
- if (i != curr_req->dtd_count - 1)
- curr_dtd = (struct mv_dtd *)curr_dtd->next_dtd_virt;
- }
- if (retval)
- return retval;
-
- if (direction == EP_DIR_OUT)
- bit_pos = 1 << curr_req->ep->ep_num;
- else
- bit_pos = 1 << (16 + curr_req->ep->ep_num);
-
- while (curr_dqh->curr_dtd_ptr == curr_dtd->td_dma) {
- if (curr_dtd->dtd_next == EP_QUEUE_HEAD_NEXT_TERMINATE) {
- while (readl(&udc->op_regs->epstatus) & bit_pos)
- udelay(1);
- break;
- }
- udelay(1);
- }
-
- curr_req->req.actual = actual;
-
- return 0;
-}
-
-/*
- * done() - retire a request; caller blocked irqs
- * @status : request status to be set, only works when
- * request is still in progress.
- */
-static void done(struct mv_ep *ep, struct mv_req *req, int status)
- __releases(&ep->udc->lock)
- __acquires(&ep->udc->lock)
-{
- struct mv_udc *udc = NULL;
- unsigned char stopped = ep->stopped;
- struct mv_dtd *curr_td, *next_td;
- int j;
-
- udc = (struct mv_udc *)ep->udc;
- /* Removed the req from fsl_ep->queue */
- list_del_init(&req->queue);
-
- /* req.status should be set as -EINPROGRESS in ep_queue() */
- if (req->req.status == -EINPROGRESS)
- req->req.status = status;
- else
- status = req->req.status;
-
- /* Free dtd for the request */
- next_td = req->head;
- for (j = 0; j < req->dtd_count; j++) {
- curr_td = next_td;
- if (j != req->dtd_count - 1)
- next_td = curr_td->next_dtd_virt;
- dma_pool_free(udc->dtd_pool, curr_td, curr_td->td_dma);
- }
-
- usb_gadget_unmap_request(&udc->gadget, &req->req, ep_dir(ep));
-
- if (status && (status != -ESHUTDOWN))
- dev_info(&udc->dev->dev, "complete %s req %p stat %d len %u/%u",
- ep->ep.name, &req->req, status,
- req->req.actual, req->req.length);
-
- ep->stopped = 1;
-
- spin_unlock(&ep->udc->lock);
-
- usb_gadget_giveback_request(&ep->ep, &req->req);
-
- spin_lock(&ep->udc->lock);
- ep->stopped = stopped;
-}
-
-static int queue_dtd(struct mv_ep *ep, struct mv_req *req)
-{
- struct mv_udc *udc;
- struct mv_dqh *dqh;
- u32 bit_pos, direction;
- u32 usbcmd, epstatus;
- unsigned int loops;
- int retval = 0;
-
- udc = ep->udc;
- direction = ep_dir(ep);
- dqh = &(udc->ep_dqh[ep->ep_num * 2 + direction]);
- bit_pos = 1 << (((direction == EP_DIR_OUT) ? 0 : 16) + ep->ep_num);
-
- /* check if the pipe is empty */
- if (!(list_empty(&ep->queue))) {
- struct mv_req *lastreq;
- lastreq = list_entry(ep->queue.prev, struct mv_req, queue);
- lastreq->tail->dtd_next =
- req->head->td_dma & EP_QUEUE_HEAD_NEXT_POINTER_MASK;
-
- wmb();
-
- if (readl(&udc->op_regs->epprime) & bit_pos)
- goto done;
-
- loops = LOOPS(READSAFE_TIMEOUT);
- while (1) {
- /* start with setting the semaphores */
- usbcmd = readl(&udc->op_regs->usbcmd);
- usbcmd |= USBCMD_ATDTW_TRIPWIRE_SET;
- writel(usbcmd, &udc->op_regs->usbcmd);
-
- /* read the endpoint status */
- epstatus = readl(&udc->op_regs->epstatus) & bit_pos;
-
- /*
- * Reread the ATDTW semaphore bit to check if it is
- * cleared. When hardware see a hazard, it will clear
- * the bit or else we remain set to 1 and we can
- * proceed with priming of endpoint if not already
- * primed.
- */
- if (readl(&udc->op_regs->usbcmd)
- & USBCMD_ATDTW_TRIPWIRE_SET)
- break;
-
- loops--;
- if (loops == 0) {
- dev_err(&udc->dev->dev,
- "Timeout for ATDTW_TRIPWIRE...\n");
- retval = -ETIME;
- goto done;
- }
- udelay(LOOPS_USEC);
- }
-
- /* Clear the semaphore */
- usbcmd = readl(&udc->op_regs->usbcmd);
- usbcmd &= USBCMD_ATDTW_TRIPWIRE_CLEAR;
- writel(usbcmd, &udc->op_regs->usbcmd);
-
- if (epstatus)
- goto done;
- }
-
- /* Write dQH next pointer and terminate bit to 0 */
- dqh->next_dtd_ptr = req->head->td_dma
- & EP_QUEUE_HEAD_NEXT_POINTER_MASK;
-
- /* clear active and halt bit, in case set from a previous error */
- dqh->size_ioc_int_sts &= ~(DTD_STATUS_ACTIVE | DTD_STATUS_HALTED);
-
- /* Ensure that updates to the QH will occur before priming. */
- wmb();
-
- /* Prime the Endpoint */
- writel(bit_pos, &udc->op_regs->epprime);
-
-done:
- return retval;
-}
-
-static struct mv_dtd *build_dtd(struct mv_req *req, unsigned *length,
- dma_addr_t *dma, int *is_last)
-{
- struct mv_dtd *dtd;
- struct mv_udc *udc;
- struct mv_dqh *dqh;
- u32 temp, mult = 0;
-
- /* how big will this transfer be? */
- if (usb_endpoint_xfer_isoc(req->ep->ep.desc)) {
- dqh = req->ep->dqh;
- mult = (dqh->max_packet_length >> EP_QUEUE_HEAD_MULT_POS)
- & 0x3;
- *length = min(req->req.length - req->req.actual,
- (unsigned)(mult * req->ep->ep.maxpacket));
- } else
- *length = min(req->req.length - req->req.actual,
- (unsigned)EP_MAX_LENGTH_TRANSFER);
-
- udc = req->ep->udc;
-
- /*
- * Be careful that no _GFP_HIGHMEM is set,
- * or we can not use dma_to_virt
- */
- dtd = dma_pool_alloc(udc->dtd_pool, GFP_ATOMIC, dma);
- if (dtd == NULL)
- return dtd;
-
- dtd->td_dma = *dma;
- /* initialize buffer page pointers */
- temp = (u32)(req->req.dma + req->req.actual);
- dtd->buff_ptr0 = cpu_to_le32(temp);
- temp &= ~0xFFF;
- dtd->buff_ptr1 = cpu_to_le32(temp + 0x1000);
- dtd->buff_ptr2 = cpu_to_le32(temp + 0x2000);
- dtd->buff_ptr3 = cpu_to_le32(temp + 0x3000);
- dtd->buff_ptr4 = cpu_to_le32(temp + 0x4000);
-
- req->req.actual += *length;
-
- /* zlp is needed if req->req.zero is set */
- if (req->req.zero) {
- if (*length == 0 || (*length % req->ep->ep.maxpacket) != 0)
- *is_last = 1;
- else
- *is_last = 0;
- } else if (req->req.length == req->req.actual)
- *is_last = 1;
- else
- *is_last = 0;
-
- /* Fill in the transfer size; set active bit */
- temp = ((*length << DTD_LENGTH_BIT_POS) | DTD_STATUS_ACTIVE);
-
- /* Enable interrupt for the last dtd of a request */
- if (*is_last && !req->req.no_interrupt)
- temp |= DTD_IOC;
-
- temp |= mult << 10;
-
- dtd->size_ioc_sts = temp;
-
- mb();
-
- return dtd;
-}
-
-/* generate dTD linked list for a request */
-static int req_to_dtd(struct mv_req *req)
-{
- unsigned count;
- int is_last, is_first = 1;
- struct mv_dtd *dtd, *last_dtd = NULL;
- dma_addr_t dma;
-
- do {
- dtd = build_dtd(req, &count, &dma, &is_last);
- if (dtd == NULL)
- return -ENOMEM;
-
- if (is_first) {
- is_first = 0;
- req->head = dtd;
- } else {
- last_dtd->dtd_next = dma;
- last_dtd->next_dtd_virt = dtd;
- }
- last_dtd = dtd;
- req->dtd_count++;
- } while (!is_last);
-
- /* set terminate bit to 1 for the last dTD */
- dtd->dtd_next = DTD_NEXT_TERMINATE;
-
- req->tail = dtd;
-
- return 0;
-}
-
-static int mv_ep_enable(struct usb_ep *_ep,
- const struct usb_endpoint_descriptor *desc)
-{
- struct mv_udc *udc;
- struct mv_ep *ep;
- struct mv_dqh *dqh;
- u16 max = 0;
- u32 bit_pos, epctrlx, direction;
- const unsigned char zlt = 1;
- unsigned char ios, mult;
- unsigned long flags;
-
- ep = container_of(_ep, struct mv_ep, ep);
- udc = ep->udc;
-
- if (!_ep || !desc
- || desc->bDescriptorType != USB_DT_ENDPOINT)
- return -EINVAL;
-
- if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN)
- return -ESHUTDOWN;
-
- direction = ep_dir(ep);
- max = usb_endpoint_maxp(desc);
-
- /*
- * disable HW zero length termination select
- * driver handles zero length packet through req->req.zero
- */
- bit_pos = 1 << ((direction == EP_DIR_OUT ? 0 : 16) + ep->ep_num);
-
- /* Check if the Endpoint is Primed */
- if ((readl(&udc->op_regs->epprime) & bit_pos)
- || (readl(&udc->op_regs->epstatus) & bit_pos)) {
- dev_info(&udc->dev->dev,
- "ep=%d %s: Init ERROR: ENDPTPRIME=0x%x,"
- " ENDPTSTATUS=0x%x, bit_pos=0x%x\n",
- (unsigned)ep->ep_num, direction ? "SEND" : "RECV",
- (unsigned)readl(&udc->op_regs->epprime),
- (unsigned)readl(&udc->op_regs->epstatus),
- (unsigned)bit_pos);
- goto en_done;
- }
-
- /* Set the max packet length, interrupt on Setup and Mult fields */
- ios = 0;
- mult = 0;
- switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
- case USB_ENDPOINT_XFER_BULK:
- case USB_ENDPOINT_XFER_INT:
- break;
- case USB_ENDPOINT_XFER_CONTROL:
- ios = 1;
- break;
- case USB_ENDPOINT_XFER_ISOC:
- /* Calculate transactions needed for high bandwidth iso */
- mult = usb_endpoint_maxp_mult(desc);
- /* 3 transactions at most */
- if (mult > 3)
- goto en_done;
- break;
- default:
- goto en_done;
- }
-
- spin_lock_irqsave(&udc->lock, flags);
- /* Get the endpoint queue head address */
- dqh = ep->dqh;
- dqh->max_packet_length = (max << EP_QUEUE_HEAD_MAX_PKT_LEN_POS)
- | (mult << EP_QUEUE_HEAD_MULT_POS)
- | (zlt ? EP_QUEUE_HEAD_ZLT_SEL : 0)
- | (ios ? EP_QUEUE_HEAD_IOS : 0);
- dqh->next_dtd_ptr = 1;
- dqh->size_ioc_int_sts = 0;
-
- ep->ep.maxpacket = max;
- ep->ep.desc = desc;
- ep->stopped = 0;
-
- /* Enable the endpoint for Rx or Tx and set the endpoint type */
- epctrlx = readl(&udc->op_regs->epctrlx[ep->ep_num]);
- if (direction == EP_DIR_IN) {
- epctrlx &= ~EPCTRL_TX_ALL_MASK;
- epctrlx |= EPCTRL_TX_ENABLE | EPCTRL_TX_DATA_TOGGLE_RST
- | ((desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
- << EPCTRL_TX_EP_TYPE_SHIFT);
- } else {
- epctrlx &= ~EPCTRL_RX_ALL_MASK;
- epctrlx |= EPCTRL_RX_ENABLE | EPCTRL_RX_DATA_TOGGLE_RST
- | ((desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
- << EPCTRL_RX_EP_TYPE_SHIFT);
- }
- writel(epctrlx, &udc->op_regs->epctrlx[ep->ep_num]);
-
- /*
- * Implement Guideline (GL# USB-7) The unused endpoint type must
- * be programmed to bulk.
- */
- epctrlx = readl(&udc->op_regs->epctrlx[ep->ep_num]);
- if ((epctrlx & EPCTRL_RX_ENABLE) == 0) {
- epctrlx |= (USB_ENDPOINT_XFER_BULK
- << EPCTRL_RX_EP_TYPE_SHIFT);
- writel(epctrlx, &udc->op_regs->epctrlx[ep->ep_num]);
- }
-
- epctrlx = readl(&udc->op_regs->epctrlx[ep->ep_num]);
- if ((epctrlx & EPCTRL_TX_ENABLE) == 0) {
- epctrlx |= (USB_ENDPOINT_XFER_BULK
- << EPCTRL_TX_EP_TYPE_SHIFT);
- writel(epctrlx, &udc->op_regs->epctrlx[ep->ep_num]);
- }
-
- spin_unlock_irqrestore(&udc->lock, flags);
-
- return 0;
-en_done:
- return -EINVAL;
-}
-
-static int mv_ep_disable(struct usb_ep *_ep)
-{
- struct mv_udc *udc;
- struct mv_ep *ep;
- struct mv_dqh *dqh;
- u32 epctrlx, direction;
- unsigned long flags;
-
- ep = container_of(_ep, struct mv_ep, ep);
- if ((_ep == NULL) || !ep->ep.desc)
- return -EINVAL;
-
- udc = ep->udc;
-
- /* Get the endpoint queue head address */
- dqh = ep->dqh;
-
- spin_lock_irqsave(&udc->lock, flags);
-
- direction = ep_dir(ep);
-
- /* Reset the max packet length and the interrupt on Setup */
- dqh->max_packet_length = 0;
-
- /* Disable the endpoint for Rx or Tx and reset the endpoint type */
- epctrlx = readl(&udc->op_regs->epctrlx[ep->ep_num]);
- epctrlx &= ~((direction == EP_DIR_IN)
- ? (EPCTRL_TX_ENABLE | EPCTRL_TX_TYPE)
- : (EPCTRL_RX_ENABLE | EPCTRL_RX_TYPE));
- writel(epctrlx, &udc->op_regs->epctrlx[ep->ep_num]);
-
- /* nuke all pending requests (does flush) */
- nuke(ep, -ESHUTDOWN);
-
- ep->ep.desc = NULL;
- ep->stopped = 1;
-
- spin_unlock_irqrestore(&udc->lock, flags);
-
- return 0;
-}
-
-static struct usb_request *
-mv_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags)
-{
- struct mv_req *req;
-
- req = kzalloc(sizeof *req, gfp_flags);
- if (!req)
- return NULL;
-
- req->req.dma = DMA_ADDR_INVALID;
- INIT_LIST_HEAD(&req->queue);
-
- return &req->req;
-}
-
-static void mv_free_request(struct usb_ep *_ep, struct usb_request *_req)
-{
- struct mv_req *req = NULL;
-
- req = container_of(_req, struct mv_req, req);
-
- if (_req)
- kfree(req);
-}
-
-static void mv_ep_fifo_flush(struct usb_ep *_ep)
-{
- struct mv_udc *udc;
- u32 bit_pos, direction;
- struct mv_ep *ep;
- unsigned int loops;
-
- if (!_ep)
- return;
-
- ep = container_of(_ep, struct mv_ep, ep);
- if (!ep->ep.desc)
- return;
-
- udc = ep->udc;
- direction = ep_dir(ep);
-
- if (ep->ep_num == 0)
- bit_pos = (1 << 16) | 1;
- else if (direction == EP_DIR_OUT)
- bit_pos = 1 << ep->ep_num;
- else
- bit_pos = 1 << (16 + ep->ep_num);
-
- loops = LOOPS(EPSTATUS_TIMEOUT);
- do {
- unsigned int inter_loops;
-
- if (loops == 0) {
- dev_err(&udc->dev->dev,
- "TIMEOUT for ENDPTSTATUS=0x%x, bit_pos=0x%x\n",
- (unsigned)readl(&udc->op_regs->epstatus),
- (unsigned)bit_pos);
- return;
- }
- /* Write 1 to the Flush register */
- writel(bit_pos, &udc->op_regs->epflush);
-
- /* Wait until flushing completed */
- inter_loops = LOOPS(FLUSH_TIMEOUT);
- while (readl(&udc->op_regs->epflush)) {
- /*
- * ENDPTFLUSH bit should be cleared to indicate this
- * operation is complete
- */
- if (inter_loops == 0) {
- dev_err(&udc->dev->dev,
- "TIMEOUT for ENDPTFLUSH=0x%x,"
- "bit_pos=0x%x\n",
- (unsigned)readl(&udc->op_regs->epflush),
- (unsigned)bit_pos);
- return;
- }
- inter_loops--;
- udelay(LOOPS_USEC);
- }
- loops--;
- } while (readl(&udc->op_regs->epstatus) & bit_pos);
-}
-
-/* queues (submits) an I/O request to an endpoint */
-static int
-mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
-{
- struct mv_ep *ep = container_of(_ep, struct mv_ep, ep);
- struct mv_req *req = container_of(_req, struct mv_req, req);
- struct mv_udc *udc = ep->udc;
- unsigned long flags;
- int retval;
-
- /* catch various bogus parameters */
- if (!_req || !req->req.complete || !req->req.buf
- || !list_empty(&req->queue)) {
- dev_err(&udc->dev->dev, "%s, bad params", __func__);
- return -EINVAL;
- }
- if (unlikely(!_ep || !ep->ep.desc)) {
- dev_err(&udc->dev->dev, "%s, bad ep", __func__);
- return -EINVAL;
- }
-
- udc = ep->udc;
- if (!udc->driver || udc->gadget.speed == USB_SPEED_UNKNOWN)
- return -ESHUTDOWN;
-
- req->ep = ep;
-
- /* map virtual address to hardware */
- retval = usb_gadget_map_request(&udc->gadget, _req, ep_dir(ep));
- if (retval)
- return retval;
-
- req->req.status = -EINPROGRESS;
- req->req.actual = 0;
- req->dtd_count = 0;
-
- spin_lock_irqsave(&udc->lock, flags);
-
- /* build dtds and push them to device queue */
- if (!req_to_dtd(req)) {
- retval = queue_dtd(ep, req);
- if (retval) {
- spin_unlock_irqrestore(&udc->lock, flags);
- dev_err(&udc->dev->dev, "Failed to queue dtd\n");
- goto err_unmap_dma;
- }
- } else {
- spin_unlock_irqrestore(&udc->lock, flags);
- dev_err(&udc->dev->dev, "Failed to dma_pool_alloc\n");
- retval = -ENOMEM;
- goto err_unmap_dma;
- }
-
- /* Update ep0 state */
- if (ep->ep_num == 0)
- udc->ep0_state = DATA_STATE_XMIT;
-
- /* irq handler advances the queue */
- list_add_tail(&req->queue, &ep->queue);
- spin_unlock_irqrestore(&udc->lock, flags);
-
- return 0;
-
-err_unmap_dma:
- usb_gadget_unmap_request(&udc->gadget, _req, ep_dir(ep));
-
- return retval;
-}
-
-static void mv_prime_ep(struct mv_ep *ep, struct mv_req *req)
-{
- struct mv_dqh *dqh = ep->dqh;
- u32 bit_pos;
-
- /* Write dQH next pointer and terminate bit to 0 */
- dqh->next_dtd_ptr = req->head->td_dma
- & EP_QUEUE_HEAD_NEXT_POINTER_MASK;
-
- /* clear active and halt bit, in case set from a previous error */
- dqh->size_ioc_int_sts &= ~(DTD_STATUS_ACTIVE | DTD_STATUS_HALTED);
-
- /* Ensure that updates to the QH will occure before priming. */
- wmb();
-
- bit_pos = 1 << (((ep_dir(ep) == EP_DIR_OUT) ? 0 : 16) + ep->ep_num);
-
- /* Prime the Endpoint */
- writel(bit_pos, &ep->udc->op_regs->epprime);
-}
-
-/* dequeues (cancels, unlinks) an I/O request from an endpoint */
-static int mv_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
-{
- struct mv_ep *ep = container_of(_ep, struct mv_ep, ep);
- struct mv_req *req = NULL, *iter;
- struct mv_udc *udc = ep->udc;
- unsigned long flags;
- int stopped, ret = 0;
- u32 epctrlx;
-
- if (!_ep || !_req)
- return -EINVAL;
-
- spin_lock_irqsave(&ep->udc->lock, flags);
- stopped = ep->stopped;
-
- /* Stop the ep before we deal with the queue */
- ep->stopped = 1;
- epctrlx = readl(&udc->op_regs->epctrlx[ep->ep_num]);
- if (ep_dir(ep) == EP_DIR_IN)
- epctrlx &= ~EPCTRL_TX_ENABLE;
- else
- epctrlx &= ~EPCTRL_RX_ENABLE;
- writel(epctrlx, &udc->op_regs->epctrlx[ep->ep_num]);
-
- /* make sure it's actually queued on this endpoint */
- list_for_each_entry(iter, &ep->queue, queue) {
- if (&iter->req != _req)
- continue;
- req = iter;
- break;
- }
- if (!req) {
- ret = -EINVAL;
- goto out;
- }
-
- /* The request is in progress, or completed but not dequeued */
- if (ep->queue.next == &req->queue) {
- _req->status = -ECONNRESET;
- mv_ep_fifo_flush(_ep); /* flush current transfer */
-
- /* The request isn't the last request in this ep queue */
- if (req->queue.next != &ep->queue) {
- struct mv_req *next_req;
-
- next_req = list_entry(req->queue.next,
- struct mv_req, queue);
-
- /* Point the QH to the first TD of next request */
- mv_prime_ep(ep, next_req);
- } else {
- struct mv_dqh *qh;
-
- qh = ep->dqh;
- qh->next_dtd_ptr = 1;
- qh->size_ioc_int_sts = 0;
- }
-
- /* The request hasn't been processed, patch up the TD chain */
- } else {
- struct mv_req *prev_req;
-
- prev_req = list_entry(req->queue.prev, struct mv_req, queue);
- writel(readl(&req->tail->dtd_next),
- &prev_req->tail->dtd_next);
-
- }
-
- done(ep, req, -ECONNRESET);
-
- /* Enable EP */
-out:
- epctrlx = readl(&udc->op_regs->epctrlx[ep->ep_num]);
- if (ep_dir(ep) == EP_DIR_IN)
- epctrlx |= EPCTRL_TX_ENABLE;
- else
- epctrlx |= EPCTRL_RX_ENABLE;
- writel(epctrlx, &udc->op_regs->epctrlx[ep->ep_num]);
- ep->stopped = stopped;
-
- spin_unlock_irqrestore(&ep->udc->lock, flags);
- return ret;
-}
-
-static void ep_set_stall(struct mv_udc *udc, u8 ep_num, u8 direction, int stall)
-{
- u32 epctrlx;
-
- epctrlx = readl(&udc->op_regs->epctrlx[ep_num]);
-
- if (stall) {
- if (direction == EP_DIR_IN)
- epctrlx |= EPCTRL_TX_EP_STALL;
- else
- epctrlx |= EPCTRL_RX_EP_STALL;
- } else {
- if (direction == EP_DIR_IN) {
- epctrlx &= ~EPCTRL_TX_EP_STALL;
- epctrlx |= EPCTRL_TX_DATA_TOGGLE_RST;
- } else {
- epctrlx &= ~EPCTRL_RX_EP_STALL;
- epctrlx |= EPCTRL_RX_DATA_TOGGLE_RST;
- }
- }
- writel(epctrlx, &udc->op_regs->epctrlx[ep_num]);
-}
-
-static int ep_is_stall(struct mv_udc *udc, u8 ep_num, u8 direction)
-{
- u32 epctrlx;
-
- epctrlx = readl(&udc->op_regs->epctrlx[ep_num]);
-
- if (direction == EP_DIR_OUT)
- return (epctrlx & EPCTRL_RX_EP_STALL) ? 1 : 0;
- else
- return (epctrlx & EPCTRL_TX_EP_STALL) ? 1 : 0;
-}
-
-static int mv_ep_set_halt_wedge(struct usb_ep *_ep, int halt, int wedge)
-{
- struct mv_ep *ep;
- unsigned long flags;
- int status = 0;
- struct mv_udc *udc;
-
- ep = container_of(_ep, struct mv_ep, ep);
- udc = ep->udc;
- if (!_ep || !ep->ep.desc) {
- status = -EINVAL;
- goto out;
- }
-
- if (ep->ep.desc->bmAttributes == USB_ENDPOINT_XFER_ISOC) {
- status = -EOPNOTSUPP;
- goto out;
- }
-
- /*
- * Attempt to halt IN ep will fail if any transfer requests
- * are still queue
- */
- if (halt && (ep_dir(ep) == EP_DIR_IN) && !list_empty(&ep->queue)) {
- status = -EAGAIN;
- goto out;
- }
-
- spin_lock_irqsave(&ep->udc->lock, flags);
- ep_set_stall(udc, ep->ep_num, ep_dir(ep), halt);
- if (halt && wedge)
- ep->wedge = 1;
- else if (!halt)
- ep->wedge = 0;
- spin_unlock_irqrestore(&ep->udc->lock, flags);
-
- if (ep->ep_num == 0) {
- udc->ep0_state = WAIT_FOR_SETUP;
- udc->ep0_dir = EP_DIR_OUT;
- }
-out:
- return status;
-}
-
-static int mv_ep_set_halt(struct usb_ep *_ep, int halt)
-{
- return mv_ep_set_halt_wedge(_ep, halt, 0);
-}
-
-static int mv_ep_set_wedge(struct usb_ep *_ep)
-{
- return mv_ep_set_halt_wedge(_ep, 1, 1);
-}
-
-static const struct usb_ep_ops mv_ep_ops = {
- .enable = mv_ep_enable,
- .disable = mv_ep_disable,
-
- .alloc_request = mv_alloc_request,
- .free_request = mv_free_request,
-
- .queue = mv_ep_queue,
- .dequeue = mv_ep_dequeue,
-
- .set_wedge = mv_ep_set_wedge,
- .set_halt = mv_ep_set_halt,
- .fifo_flush = mv_ep_fifo_flush, /* flush fifo */
-};
-
-static int udc_clock_enable(struct mv_udc *udc)
-{
- return clk_prepare_enable(udc->clk);
-}
-
-static void udc_clock_disable(struct mv_udc *udc)
-{
- clk_disable_unprepare(udc->clk);
-}
-
-static void udc_stop(struct mv_udc *udc)
-{
- u32 tmp;
-
- /* Disable interrupts */
- tmp = readl(&udc->op_regs->usbintr);
- tmp &= ~(USBINTR_INT_EN | USBINTR_ERR_INT_EN |
- USBINTR_PORT_CHANGE_DETECT_EN | USBINTR_RESET_EN);
- writel(tmp, &udc->op_regs->usbintr);
-
- udc->stopped = 1;
-
- /* Reset the Run the bit in the command register to stop VUSB */
- tmp = readl(&udc->op_regs->usbcmd);
- tmp &= ~USBCMD_RUN_STOP;
- writel(tmp, &udc->op_regs->usbcmd);
-}
-
-static void udc_start(struct mv_udc *udc)
-{
- u32 usbintr;
-
- usbintr = USBINTR_INT_EN | USBINTR_ERR_INT_EN
- | USBINTR_PORT_CHANGE_DETECT_EN
- | USBINTR_RESET_EN | USBINTR_DEVICE_SUSPEND;
- /* Enable interrupts */
- writel(usbintr, &udc->op_regs->usbintr);
-
- udc->stopped = 0;
-
- /* Set the Run bit in the command register */
- writel(USBCMD_RUN_STOP, &udc->op_regs->usbcmd);
-}
-
-static int udc_reset(struct mv_udc *udc)
-{
- unsigned int loops;
- u32 tmp, portsc;
-
- /* Stop the controller */
- tmp = readl(&udc->op_regs->usbcmd);
- tmp &= ~USBCMD_RUN_STOP;
- writel(tmp, &udc->op_regs->usbcmd);
-
- /* Reset the controller to get default values */
- writel(USBCMD_CTRL_RESET, &udc->op_regs->usbcmd);
-
- /* wait for reset to complete */
- loops = LOOPS(RESET_TIMEOUT);
- while (readl(&udc->op_regs->usbcmd) & USBCMD_CTRL_RESET) {
- if (loops == 0) {
- dev_err(&udc->dev->dev,
- "Wait for RESET completed TIMEOUT\n");
- return -ETIMEDOUT;
- }
- loops--;
- udelay(LOOPS_USEC);
- }
-
- /* set controller to device mode */
- tmp = readl(&udc->op_regs->usbmode);
- tmp |= USBMODE_CTRL_MODE_DEVICE;
-
- /* turn setup lockout off, require setup tripwire in usbcmd */
- tmp |= USBMODE_SETUP_LOCK_OFF;
-
- writel(tmp, &udc->op_regs->usbmode);
-
- writel(0x0, &udc->op_regs->epsetupstat);
-
- /* Configure the Endpoint List Address */
- writel(udc->ep_dqh_dma & USB_EP_LIST_ADDRESS_MASK,
- &udc->op_regs->eplistaddr);
-
- portsc = readl(&udc->op_regs->portsc[0]);
- if (readl(&udc->cap_regs->hcsparams) & HCSPARAMS_PPC)
- portsc &= (~PORTSCX_W1C_BITS | ~PORTSCX_PORT_POWER);
-
- if (udc->force_fs)
- portsc |= PORTSCX_FORCE_FULL_SPEED_CONNECT;
- else
- portsc &= (~PORTSCX_FORCE_FULL_SPEED_CONNECT);
-
- writel(portsc, &udc->op_regs->portsc[0]);
-
- tmp = readl(&udc->op_regs->epctrlx[0]);
- tmp &= ~(EPCTRL_TX_EP_STALL | EPCTRL_RX_EP_STALL);
- writel(tmp, &udc->op_regs->epctrlx[0]);
-
- return 0;
-}
-
-static int mv_udc_enable_internal(struct mv_udc *udc)
-{
- int retval;
-
- if (udc->active)
- return 0;
-
- dev_dbg(&udc->dev->dev, "enable udc\n");
- retval = udc_clock_enable(udc);
- if (retval)
- return retval;
-
- if (udc->pdata->phy_init) {
- retval = udc->pdata->phy_init(udc->phy_regs);
- if (retval) {
- dev_err(&udc->dev->dev,
- "init phy error %d\n", retval);
- udc_clock_disable(udc);
- return retval;
- }
- }
- udc->active = 1;
-
- return 0;
-}
-
-static int mv_udc_enable(struct mv_udc *udc)
-{
- if (udc->clock_gating)
- return mv_udc_enable_internal(udc);
-
- return 0;
-}
-
-static void mv_udc_disable_internal(struct mv_udc *udc)
-{
- if (udc->active) {
- dev_dbg(&udc->dev->dev, "disable udc\n");
- if (udc->pdata->phy_deinit)
- udc->pdata->phy_deinit(udc->phy_regs);
- udc_clock_disable(udc);
- udc->active = 0;
- }
-}
-
-static void mv_udc_disable(struct mv_udc *udc)
-{
- if (udc->clock_gating)
- mv_udc_disable_internal(udc);
-}
-
-static int mv_udc_get_frame(struct usb_gadget *gadget)
-{
- struct mv_udc *udc;
- u16 retval;
-
- if (!gadget)
- return -ENODEV;
-
- udc = container_of(gadget, struct mv_udc, gadget);
-
- retval = readl(&udc->op_regs->frindex) & USB_FRINDEX_MASKS;
-
- return retval;
-}
-
-/* Tries to wake up the host connected to this gadget */
-static int mv_udc_wakeup(struct usb_gadget *gadget)
-{
- struct mv_udc *udc = container_of(gadget, struct mv_udc, gadget);
- u32 portsc;
-
- /* Remote wakeup feature not enabled by host */
- if (!udc->remote_wakeup)
- return -ENOTSUPP;
-
- portsc = readl(&udc->op_regs->portsc);
- /* not suspended? */
- if (!(portsc & PORTSCX_PORT_SUSPEND))
- return 0;
- /* trigger force resume */
- portsc |= PORTSCX_PORT_FORCE_RESUME;
- writel(portsc, &udc->op_regs->portsc[0]);
- return 0;
-}
-
-static int mv_udc_vbus_session(struct usb_gadget *gadget, int is_active)
-{
- struct mv_udc *udc;
- unsigned long flags;
- int retval = 0;
-
- udc = container_of(gadget, struct mv_udc, gadget);
- spin_lock_irqsave(&udc->lock, flags);
-
- udc->vbus_active = (is_active != 0);
-
- dev_dbg(&udc->dev->dev, "%s: softconnect %d, vbus_active %d\n",
- __func__, udc->softconnect, udc->vbus_active);
-
- if (udc->driver && udc->softconnect && udc->vbus_active) {
- retval = mv_udc_enable(udc);
- if (retval == 0) {
- /* Clock is disabled, need re-init registers */
- udc_reset(udc);
- ep0_reset(udc);
- udc_start(udc);
- }
- } else if (udc->driver && udc->softconnect) {
- if (!udc->active)
- goto out;
-
- /* stop all the transfer in queue*/
- stop_activity(udc, udc->driver);
- udc_stop(udc);
- mv_udc_disable(udc);
- }
-
-out:
- spin_unlock_irqrestore(&udc->lock, flags);
- return retval;
-}
-
-static int mv_udc_pullup(struct usb_gadget *gadget, int is_on)
-{
- struct mv_udc *udc;
- unsigned long flags;
- int retval = 0;
-
- udc = container_of(gadget, struct mv_udc, gadget);
- spin_lock_irqsave(&udc->lock, flags);
-
- udc->softconnect = (is_on != 0);
-
- dev_dbg(&udc->dev->dev, "%s: softconnect %d, vbus_active %d\n",
- __func__, udc->softconnect, udc->vbus_active);
-
- if (udc->driver && udc->softconnect && udc->vbus_active) {
- retval = mv_udc_enable(udc);
- if (retval == 0) {
- /* Clock is disabled, need re-init registers */
- udc_reset(udc);
- ep0_reset(udc);
- udc_start(udc);
- }
- } else if (udc->driver && udc->vbus_active) {
- /* stop all the transfer in queue*/
- stop_activity(udc, udc->driver);
- udc_stop(udc);
- mv_udc_disable(udc);
- }
-
- spin_unlock_irqrestore(&udc->lock, flags);
- return retval;
-}
-
-static int mv_udc_start(struct usb_gadget *, struct usb_gadget_driver *);
-static int mv_udc_stop(struct usb_gadget *);
-/* device controller usb_gadget_ops structure */
-static const struct usb_gadget_ops mv_ops = {
-
- /* returns the current frame number */
- .get_frame = mv_udc_get_frame,
-
- /* tries to wake up the host connected to this gadget */
- .wakeup = mv_udc_wakeup,
-
- /* notify controller that VBUS is powered or not */
- .vbus_session = mv_udc_vbus_session,
-
- /* D+ pullup, software-controlled connect/disconnect to USB host */
- .pullup = mv_udc_pullup,
- .udc_start = mv_udc_start,
- .udc_stop = mv_udc_stop,
-};
-
-static int eps_init(struct mv_udc *udc)
-{
- struct mv_ep *ep;
- char name[14];
- int i;
-
- /* initialize ep0 */
- ep = &udc->eps[0];
- ep->udc = udc;
- strncpy(ep->name, "ep0", sizeof(ep->name));
- ep->ep.name = ep->name;
- ep->ep.ops = &mv_ep_ops;
- ep->wedge = 0;
- ep->stopped = 0;
- usb_ep_set_maxpacket_limit(&ep->ep, EP0_MAX_PKT_SIZE);
- ep->ep.caps.type_control = true;
- ep->ep.caps.dir_in = true;
- ep->ep.caps.dir_out = true;
- ep->ep_num = 0;
- ep->ep.desc = &mv_ep0_desc;
- INIT_LIST_HEAD(&ep->queue);
-
- ep->ep_type = USB_ENDPOINT_XFER_CONTROL;
-
- /* initialize other endpoints */
- for (i = 2; i < udc->max_eps * 2; i++) {
- ep = &udc->eps[i];
- if (i % 2) {
- snprintf(name, sizeof(name), "ep%din", i / 2);
- ep->direction = EP_DIR_IN;
- ep->ep.caps.dir_in = true;
- } else {
- snprintf(name, sizeof(name), "ep%dout", i / 2);
- ep->direction = EP_DIR_OUT;
- ep->ep.caps.dir_out = true;
- }
- ep->udc = udc;
- strncpy(ep->name, name, sizeof(ep->name));
- ep->ep.name = ep->name;
-
- ep->ep.caps.type_iso = true;
- ep->ep.caps.type_bulk = true;
- ep->ep.caps.type_int = true;
-
- ep->ep.ops = &mv_ep_ops;
- ep->stopped = 0;
- usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
- ep->ep_num = i / 2;
-
- INIT_LIST_HEAD(&ep->queue);
- list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
-
- ep->dqh = &udc->ep_dqh[i];
- }
-
- return 0;
-}
-
-/* delete all endpoint requests, called with spinlock held */
-static void nuke(struct mv_ep *ep, int status)
-{
- /* called with spinlock held */
- ep->stopped = 1;
-
- /* endpoint fifo flush */
- mv_ep_fifo_flush(&ep->ep);
-
- while (!list_empty(&ep->queue)) {
- struct mv_req *req = NULL;
- req = list_entry(ep->queue.next, struct mv_req, queue);
- done(ep, req, status);
- }
-}
-
-static void gadget_reset(struct mv_udc *udc, struct usb_gadget_driver *driver)
-{
- struct mv_ep *ep;
-
- nuke(&udc->eps[0], -ESHUTDOWN);
-
- list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) {
- nuke(ep, -ESHUTDOWN);
- }
-
- /* report reset; the driver is already quiesced */
- if (driver) {
- spin_unlock(&udc->lock);
- usb_gadget_udc_reset(&udc->gadget, driver);
- spin_lock(&udc->lock);
- }
-}
-/* stop all USB activities */
-static void stop_activity(struct mv_udc *udc, struct usb_gadget_driver *driver)
-{
- struct mv_ep *ep;
-
- nuke(&udc->eps[0], -ESHUTDOWN);
-
- list_for_each_entry(ep, &udc->gadget.ep_list, ep.ep_list) {
- nuke(ep, -ESHUTDOWN);
- }
-
- /* report disconnect; the driver is already quiesced */
- if (driver) {
- spin_unlock(&udc->lock);
- driver->disconnect(&udc->gadget);
- spin_lock(&udc->lock);
- }
-}
-
-static int mv_udc_start(struct usb_gadget *gadget,
- struct usb_gadget_driver *driver)
-{
- struct mv_udc *udc;
- int retval = 0;
- unsigned long flags;
-
- udc = container_of(gadget, struct mv_udc, gadget);
-
- if (udc->driver)
- return -EBUSY;
-
- spin_lock_irqsave(&udc->lock, flags);
-
- /* hook up the driver ... */
- udc->driver = driver;
-
- udc->usb_state = USB_STATE_ATTACHED;
- udc->ep0_state = WAIT_FOR_SETUP;
- udc->ep0_dir = EP_DIR_OUT;
-
- spin_unlock_irqrestore(&udc->lock, flags);
-
- if (udc->transceiver) {
- retval = otg_set_peripheral(udc->transceiver->otg,
- &udc->gadget);
- if (retval) {
- dev_err(&udc->dev->dev,
- "unable to register peripheral to otg\n");
- udc->driver = NULL;
- return retval;
- }
- }
-
- /* When boot with cable attached, there will be no vbus irq occurred */
- if (udc->qwork)
- queue_work(udc->qwork, &udc->vbus_work);
-
- return 0;
-}
-
-static int mv_udc_stop(struct usb_gadget *gadget)
-{
- struct mv_udc *udc;
- unsigned long flags;
-
- udc = container_of(gadget, struct mv_udc, gadget);
-
- spin_lock_irqsave(&udc->lock, flags);
-
- mv_udc_enable(udc);
- udc_stop(udc);
-
- /* stop all usb activities */
- udc->gadget.speed = USB_SPEED_UNKNOWN;
- stop_activity(udc, NULL);
- mv_udc_disable(udc);
-
- spin_unlock_irqrestore(&udc->lock, flags);
-
- /* unbind gadget driver */
- udc->driver = NULL;
-
- return 0;
-}
-
-static void mv_set_ptc(struct mv_udc *udc, u32 mode)
-{
- u32 portsc;
-
- portsc = readl(&udc->op_regs->portsc[0]);
- portsc |= mode << 16;
- writel(portsc, &udc->op_regs->portsc[0]);
-}
-
-static void prime_status_complete(struct usb_ep *ep, struct usb_request *_req)
-{
- struct mv_ep *mvep = container_of(ep, struct mv_ep, ep);
- struct mv_req *req = container_of(_req, struct mv_req, req);
- struct mv_udc *udc;
- unsigned long flags;
-
- udc = mvep->udc;
-
- dev_info(&udc->dev->dev, "switch to test mode %d\n", req->test_mode);
-
- spin_lock_irqsave(&udc->lock, flags);
- if (req->test_mode) {
- mv_set_ptc(udc, req->test_mode);
- req->test_mode = 0;
- }
- spin_unlock_irqrestore(&udc->lock, flags);
-}
-
-static int
-udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty)
-{
- int retval = 0;
- struct mv_req *req;
- struct mv_ep *ep;
-
- ep = &udc->eps[0];
- udc->ep0_dir = direction;
- udc->ep0_state = WAIT_FOR_OUT_STATUS;
-
- req = udc->status_req;
-
- /* fill in the request structure */
- if (empty == false) {
- *((u16 *) req->req.buf) = cpu_to_le16(status);
- req->req.length = 2;
- } else
- req->req.length = 0;
-
- req->ep = ep;
- req->req.status = -EINPROGRESS;
- req->req.actual = 0;
- if (udc->test_mode) {
- req->req.complete = prime_status_complete;
- req->test_mode = udc->test_mode;
- udc->test_mode = 0;
- } else
- req->req.complete = NULL;
- req->dtd_count = 0;
-
- if (req->req.dma == DMA_ADDR_INVALID) {
- req->req.dma = dma_map_single(ep->udc->gadget.dev.parent,
- req->req.buf, req->req.length,
- ep_dir(ep) ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
- req->mapped = 1;
- }
-
- /* prime the data phase */
- if (!req_to_dtd(req)) {
- retval = queue_dtd(ep, req);
- if (retval) {
- dev_err(&udc->dev->dev,
- "Failed to queue dtd when prime status\n");
- goto out;
- }
- } else{ /* no mem */
- retval = -ENOMEM;
- dev_err(&udc->dev->dev,
- "Failed to dma_pool_alloc when prime status\n");
- goto out;
- }
-
- list_add_tail(&req->queue, &ep->queue);
-
- return 0;
-out:
- usb_gadget_unmap_request(&udc->gadget, &req->req, ep_dir(ep));
-
- return retval;
-}
-
-static void mv_udc_testmode(struct mv_udc *udc, u16 index)
-{
- if (index <= USB_TEST_FORCE_ENABLE) {
- udc->test_mode = index;
- if (udc_prime_status(udc, EP_DIR_IN, 0, true))
- ep0_stall(udc);
- } else
- dev_err(&udc->dev->dev,
- "This test mode(%d) is not supported\n", index);
-}
-
-static void ch9setaddress(struct mv_udc *udc, struct usb_ctrlrequest *setup)
-{
- udc->dev_addr = (u8)setup->wValue;
-
- /* update usb state */
- udc->usb_state = USB_STATE_ADDRESS;
-
- if (udc_prime_status(udc, EP_DIR_IN, 0, true))
- ep0_stall(udc);
-}
-
-static void ch9getstatus(struct mv_udc *udc, u8 ep_num,
- struct usb_ctrlrequest *setup)
-{
- u16 status = 0;
- int retval;
-
- if ((setup->bRequestType & (USB_DIR_IN | USB_TYPE_MASK))
- != (USB_DIR_IN | USB_TYPE_STANDARD))
- return;
-
- if ((setup->bRequestType & USB_RECIP_MASK) == USB_RECIP_DEVICE) {
- status = 1 << USB_DEVICE_SELF_POWERED;
- status |= udc->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP;
- } else if ((setup->bRequestType & USB_RECIP_MASK)
- == USB_RECIP_INTERFACE) {
- /* get interface status */
- status = 0;
- } else if ((setup->bRequestType & USB_RECIP_MASK)
- == USB_RECIP_ENDPOINT) {
- u8 ep_num, direction;
-
- ep_num = setup->wIndex & USB_ENDPOINT_NUMBER_MASK;
- direction = (setup->wIndex & USB_ENDPOINT_DIR_MASK)
- ? EP_DIR_IN : EP_DIR_OUT;
- status = ep_is_stall(udc, ep_num, direction)
- << USB_ENDPOINT_HALT;
- }
-
- retval = udc_prime_status(udc, EP_DIR_IN, status, false);
- if (retval)
- ep0_stall(udc);
- else
- udc->ep0_state = DATA_STATE_XMIT;
-}
-
-static void ch9clearfeature(struct mv_udc *udc, struct usb_ctrlrequest *setup)
-{
- u8 ep_num;
- u8 direction;
- struct mv_ep *ep;
-
- if ((setup->bRequestType & (USB_TYPE_MASK | USB_RECIP_MASK))
- == ((USB_TYPE_STANDARD | USB_RECIP_DEVICE))) {
- switch (setup->wValue) {
- case USB_DEVICE_REMOTE_WAKEUP:
- udc->remote_wakeup = 0;
- break;
- default:
- goto out;
- }
- } else if ((setup->bRequestType & (USB_TYPE_MASK | USB_RECIP_MASK))
- == ((USB_TYPE_STANDARD | USB_RECIP_ENDPOINT))) {
- switch (setup->wValue) {
- case USB_ENDPOINT_HALT:
- ep_num = setup->wIndex & USB_ENDPOINT_NUMBER_MASK;
- direction = (setup->wIndex & USB_ENDPOINT_DIR_MASK)
- ? EP_DIR_IN : EP_DIR_OUT;
- if (setup->wValue != 0 || setup->wLength != 0
- || ep_num > udc->max_eps)
- goto out;
- ep = &udc->eps[ep_num * 2 + direction];
- if (ep->wedge == 1)
- break;
- spin_unlock(&udc->lock);
- ep_set_stall(udc, ep_num, direction, 0);
- spin_lock(&udc->lock);
- break;
- default:
- goto out;
- }
- } else
- goto out;
-
- if (udc_prime_status(udc, EP_DIR_IN, 0, true))
- ep0_stall(udc);
-out:
- return;
-}
-
-static void ch9setfeature(struct mv_udc *udc, struct usb_ctrlrequest *setup)
-{
- u8 ep_num;
- u8 direction;
-
- if ((setup->bRequestType & (USB_TYPE_MASK | USB_RECIP_MASK))
- == ((USB_TYPE_STANDARD | USB_RECIP_DEVICE))) {
- switch (setup->wValue) {
- case USB_DEVICE_REMOTE_WAKEUP:
- udc->remote_wakeup = 1;
- break;
- case USB_DEVICE_TEST_MODE:
- if (setup->wIndex & 0xFF
- || udc->gadget.speed != USB_SPEED_HIGH)
- ep0_stall(udc);
-
- if (udc->usb_state != USB_STATE_CONFIGURED
- && udc->usb_state != USB_STATE_ADDRESS
- && udc->usb_state != USB_STATE_DEFAULT)
- ep0_stall(udc);
-
- mv_udc_testmode(udc, (setup->wIndex >> 8));
- goto out;
- default:
- goto out;
- }
- } else if ((setup->bRequestType & (USB_TYPE_MASK | USB_RECIP_MASK))
- == ((USB_TYPE_STANDARD | USB_RECIP_ENDPOINT))) {
- switch (setup->wValue) {
- case USB_ENDPOINT_HALT:
- ep_num = setup->wIndex & USB_ENDPOINT_NUMBER_MASK;
- direction = (setup->wIndex & USB_ENDPOINT_DIR_MASK)
- ? EP_DIR_IN : EP_DIR_OUT;
- if (setup->wValue != 0 || setup->wLength != 0
- || ep_num > udc->max_eps)
- goto out;
- spin_unlock(&udc->lock);
- ep_set_stall(udc, ep_num, direction, 1);
- spin_lock(&udc->lock);
- break;
- default:
- goto out;
- }
- } else
- goto out;
-
- if (udc_prime_status(udc, EP_DIR_IN, 0, true))
- ep0_stall(udc);
-out:
- return;
-}
-
-static void handle_setup_packet(struct mv_udc *udc, u8 ep_num,
- struct usb_ctrlrequest *setup)
- __releases(&ep->udc->lock)
- __acquires(&ep->udc->lock)
-{
- bool delegate = false;
-
- nuke(&udc->eps[ep_num * 2 + EP_DIR_OUT], -ESHUTDOWN);
-
- dev_dbg(&udc->dev->dev, "SETUP %02x.%02x v%04x i%04x l%04x\n",
- setup->bRequestType, setup->bRequest,
- setup->wValue, setup->wIndex, setup->wLength);
- /* We process some standard setup requests here */
- if ((setup->bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
- switch (setup->bRequest) {
- case USB_REQ_GET_STATUS:
- ch9getstatus(udc, ep_num, setup);
- break;
-
- case USB_REQ_SET_ADDRESS:
- ch9setaddress(udc, setup);
- break;
-
- case USB_REQ_CLEAR_FEATURE:
- ch9clearfeature(udc, setup);
- break;
-
- case USB_REQ_SET_FEATURE:
- ch9setfeature(udc, setup);
- break;
-
- default:
- delegate = true;
- }
- } else
- delegate = true;
-
- /* delegate USB standard requests to the gadget driver */
- if (delegate == true) {
- /* USB requests handled by gadget */
- if (setup->wLength) {
- /* DATA phase from gadget, STATUS phase from udc */
- udc->ep0_dir = (setup->bRequestType & USB_DIR_IN)
- ? EP_DIR_IN : EP_DIR_OUT;
- spin_unlock(&udc->lock);
- if (udc->driver->setup(&udc->gadget,
- &udc->local_setup_buff) < 0)
- ep0_stall(udc);
- spin_lock(&udc->lock);
- udc->ep0_state = (setup->bRequestType & USB_DIR_IN)
- ? DATA_STATE_XMIT : DATA_STATE_RECV;
- } else {
- /* no DATA phase, IN STATUS phase from gadget */
- udc->ep0_dir = EP_DIR_IN;
- spin_unlock(&udc->lock);
- if (udc->driver->setup(&udc->gadget,
- &udc->local_setup_buff) < 0)
- ep0_stall(udc);
- spin_lock(&udc->lock);
- udc->ep0_state = WAIT_FOR_OUT_STATUS;
- }
- }
-}
-
-/* complete DATA or STATUS phase of ep0 prime status phase if needed */
-static void ep0_req_complete(struct mv_udc *udc,
- struct mv_ep *ep0, struct mv_req *req)
-{
- u32 new_addr;
-
- if (udc->usb_state == USB_STATE_ADDRESS) {
- /* set the new address */
- new_addr = (u32)udc->dev_addr;
- writel(new_addr << USB_DEVICE_ADDRESS_BIT_SHIFT,
- &udc->op_regs->deviceaddr);
- }
-
- done(ep0, req, 0);
-
- switch (udc->ep0_state) {
- case DATA_STATE_XMIT:
- /* receive status phase */
- if (udc_prime_status(udc, EP_DIR_OUT, 0, true))
- ep0_stall(udc);
- break;
- case DATA_STATE_RECV:
- /* send status phase */
- if (udc_prime_status(udc, EP_DIR_IN, 0 , true))
- ep0_stall(udc);
- break;
- case WAIT_FOR_OUT_STATUS:
- udc->ep0_state = WAIT_FOR_SETUP;
- break;
- case WAIT_FOR_SETUP:
- dev_err(&udc->dev->dev, "unexpect ep0 packets\n");
- break;
- default:
- ep0_stall(udc);
- break;
- }
-}
-
-static void get_setup_data(struct mv_udc *udc, u8 ep_num, u8 *buffer_ptr)
-{
- u32 temp;
- struct mv_dqh *dqh;
-
- dqh = &udc->ep_dqh[ep_num * 2 + EP_DIR_OUT];
-
- /* Clear bit in ENDPTSETUPSTAT */
- writel((1 << ep_num), &udc->op_regs->epsetupstat);
-
- /* while a hazard exists when setup package arrives */
- do {
- /* Set Setup Tripwire */
- temp = readl(&udc->op_regs->usbcmd);
- writel(temp | USBCMD_SETUP_TRIPWIRE_SET, &udc->op_regs->usbcmd);
-
- /* Copy the setup packet to local buffer */
- memcpy(buffer_ptr, (u8 *) dqh->setup_buffer, 8);
- } while (!(readl(&udc->op_regs->usbcmd) & USBCMD_SETUP_TRIPWIRE_SET));
-
- /* Clear Setup Tripwire */
- temp = readl(&udc->op_regs->usbcmd);
- writel(temp & ~USBCMD_SETUP_TRIPWIRE_SET, &udc->op_regs->usbcmd);
-}
-
-static void irq_process_tr_complete(struct mv_udc *udc)
-{
- u32 tmp, bit_pos;
- int i, ep_num = 0, direction = 0;
- struct mv_ep *curr_ep;
- struct mv_req *curr_req, *temp_req;
- int status;
-
- /*
- * We use separate loops for ENDPTSETUPSTAT and ENDPTCOMPLETE
- * because the setup packets are to be read ASAP
- */
-
- /* Process all Setup packet received interrupts */
- tmp = readl(&udc->op_regs->epsetupstat);
-
- if (tmp) {
- for (i = 0; i < udc->max_eps; i++) {
- if (tmp & (1 << i)) {
- get_setup_data(udc, i,
- (u8 *)(&udc->local_setup_buff));
- handle_setup_packet(udc, i,
- &udc->local_setup_buff);
- }
- }
- }
-
- /* Don't clear the endpoint setup status register here.
- * It is cleared as a setup packet is read out of the buffer
- */
-
- /* Process non-setup transaction complete interrupts */
- tmp = readl(&udc->op_regs->epcomplete);
-
- if (!tmp)
- return;
-
- writel(tmp, &udc->op_regs->epcomplete);
-
- for (i = 0; i < udc->max_eps * 2; i++) {
- ep_num = i >> 1;
- direction = i % 2;
-
- bit_pos = 1 << (ep_num + 16 * direction);
-
- if (!(bit_pos & tmp))
- continue;
-
- if (i == 1)
- curr_ep = &udc->eps[0];
- else
- curr_ep = &udc->eps[i];
- /* process the req queue until an uncomplete request */
- list_for_each_entry_safe(curr_req, temp_req,
- &curr_ep->queue, queue) {
- status = process_ep_req(udc, i, curr_req);
- if (status)
- break;
-
- /* write back status to req */
- curr_req->req.status = status;
-
- /* ep0 request completion */
- if (ep_num == 0) {
- ep0_req_complete(udc, curr_ep, curr_req);
- break;
- } else {
- done(curr_ep, curr_req, status);
- }
- }
- }
-}
-
-static void irq_process_reset(struct mv_udc *udc)
-{
- u32 tmp;
- unsigned int loops;
-
- udc->ep0_dir = EP_DIR_OUT;
- udc->ep0_state = WAIT_FOR_SETUP;
- udc->remote_wakeup = 0; /* default to 0 on reset */
-
- /* The address bits are past bit 25-31. Set the address */
- tmp = readl(&udc->op_regs->deviceaddr);
- tmp &= ~(USB_DEVICE_ADDRESS_MASK);
- writel(tmp, &udc->op_regs->deviceaddr);
-
- /* Clear all the setup token semaphores */
- tmp = readl(&udc->op_regs->epsetupstat);
- writel(tmp, &udc->op_regs->epsetupstat);
-
- /* Clear all the endpoint complete status bits */
- tmp = readl(&udc->op_regs->epcomplete);
- writel(tmp, &udc->op_regs->epcomplete);
-
- /* wait until all endptprime bits cleared */
- loops = LOOPS(PRIME_TIMEOUT);
- while (readl(&udc->op_regs->epprime) & 0xFFFFFFFF) {
- if (loops == 0) {
- dev_err(&udc->dev->dev,
- "Timeout for ENDPTPRIME = 0x%x\n",
- readl(&udc->op_regs->epprime));
- break;
- }
- loops--;
- udelay(LOOPS_USEC);
- }
-
- /* Write 1s to the Flush register */
- writel((u32)~0, &udc->op_regs->epflush);
-
- if (readl(&udc->op_regs->portsc[0]) & PORTSCX_PORT_RESET) {
- dev_info(&udc->dev->dev, "usb bus reset\n");
- udc->usb_state = USB_STATE_DEFAULT;
- /* reset all the queues, stop all USB activities */
- gadget_reset(udc, udc->driver);
- } else {
- dev_info(&udc->dev->dev, "USB reset portsc 0x%x\n",
- readl(&udc->op_regs->portsc));
-
- /*
- * re-initialize
- * controller reset
- */
- udc_reset(udc);
-
- /* reset all the queues, stop all USB activities */
- stop_activity(udc, udc->driver);
-
- /* reset ep0 dQH and endptctrl */
- ep0_reset(udc);
-
- /* enable interrupt and set controller to run state */
- udc_start(udc);
-
- udc->usb_state = USB_STATE_ATTACHED;
- }
-}
-
-static void handle_bus_resume(struct mv_udc *udc)
-{
- udc->usb_state = udc->resume_state;
- udc->resume_state = 0;
-
- /* report resume to the driver */
- if (udc->driver) {
- if (udc->driver->resume) {
- spin_unlock(&udc->lock);
- udc->driver->resume(&udc->gadget);
- spin_lock(&udc->lock);
- }
- }
-}
-
-static void irq_process_suspend(struct mv_udc *udc)
-{
- udc->resume_state = udc->usb_state;
- udc->usb_state = USB_STATE_SUSPENDED;
-
- if (udc->driver->suspend) {
- spin_unlock(&udc->lock);
- udc->driver->suspend(&udc->gadget);
- spin_lock(&udc->lock);
- }
-}
-
-static void irq_process_port_change(struct mv_udc *udc)
-{
- u32 portsc;
-
- portsc = readl(&udc->op_regs->portsc[0]);
- if (!(portsc & PORTSCX_PORT_RESET)) {
- /* Get the speed */
- u32 speed = portsc & PORTSCX_PORT_SPEED_MASK;
- switch (speed) {
- case PORTSCX_PORT_SPEED_HIGH:
- udc->gadget.speed = USB_SPEED_HIGH;
- break;
- case PORTSCX_PORT_SPEED_FULL:
- udc->gadget.speed = USB_SPEED_FULL;
- break;
- case PORTSCX_PORT_SPEED_LOW:
- udc->gadget.speed = USB_SPEED_LOW;
- break;
- default:
- udc->gadget.speed = USB_SPEED_UNKNOWN;
- break;
- }
- }
-
- if (portsc & PORTSCX_PORT_SUSPEND) {
- udc->resume_state = udc->usb_state;
- udc->usb_state = USB_STATE_SUSPENDED;
- if (udc->driver->suspend) {
- spin_unlock(&udc->lock);
- udc->driver->suspend(&udc->gadget);
- spin_lock(&udc->lock);
- }
- }
-
- if (!(portsc & PORTSCX_PORT_SUSPEND)
- && udc->usb_state == USB_STATE_SUSPENDED) {
- handle_bus_resume(udc);
- }
-
- if (!udc->resume_state)
- udc->usb_state = USB_STATE_DEFAULT;
-}
-
-static void irq_process_error(struct mv_udc *udc)
-{
- /* Increment the error count */
- udc->errors++;
-}
-
-static irqreturn_t mv_udc_irq(int irq, void *dev)
-{
- struct mv_udc *udc = (struct mv_udc *)dev;
- u32 status, intr;
-
- /* Disable ISR when stopped bit is set */
- if (udc->stopped)
- return IRQ_NONE;
-
- spin_lock(&udc->lock);
-
- status = readl(&udc->op_regs->usbsts);
- intr = readl(&udc->op_regs->usbintr);
- status &= intr;
-
- if (status == 0) {
- spin_unlock(&udc->lock);
- return IRQ_NONE;
- }
-
- /* Clear all the interrupts occurred */
- writel(status, &udc->op_regs->usbsts);
-
- if (status & USBSTS_ERR)
- irq_process_error(udc);
-
- if (status & USBSTS_RESET)
- irq_process_reset(udc);
-
- if (status & USBSTS_PORT_CHANGE)
- irq_process_port_change(udc);
-
- if (status & USBSTS_INT)
- irq_process_tr_complete(udc);
-
- if (status & USBSTS_SUSPEND)
- irq_process_suspend(udc);
-
- spin_unlock(&udc->lock);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t mv_udc_vbus_irq(int irq, void *dev)
-{
- struct mv_udc *udc = (struct mv_udc *)dev;
-
- /* polling VBUS and init phy may cause too much time*/
- if (udc->qwork)
- queue_work(udc->qwork, &udc->vbus_work);
-
- return IRQ_HANDLED;
-}
-
-static void mv_udc_vbus_work(struct work_struct *work)
-{
- struct mv_udc *udc;
- unsigned int vbus;
-
- udc = container_of(work, struct mv_udc, vbus_work);
- if (!udc->pdata->vbus)
- return;
-
- vbus = udc->pdata->vbus->poll();
- dev_info(&udc->dev->dev, "vbus is %d\n", vbus);
-
- if (vbus == VBUS_HIGH)
- mv_udc_vbus_session(&udc->gadget, 1);
- else if (vbus == VBUS_LOW)
- mv_udc_vbus_session(&udc->gadget, 0);
-}
-
-/* release device structure */
-static void gadget_release(struct device *_dev)
-{
- struct mv_udc *udc;
-
- udc = dev_get_drvdata(_dev);
-
- complete(udc->done);
-}
-
-static void mv_udc_remove(struct platform_device *pdev)
-{
- struct mv_udc *udc;
-
- udc = platform_get_drvdata(pdev);
-
- usb_del_gadget_udc(&udc->gadget);
-
- if (udc->qwork)
- destroy_workqueue(udc->qwork);
-
- /* free memory allocated in probe */
- dma_pool_destroy(udc->dtd_pool);
-
- if (udc->ep_dqh)
- dma_free_coherent(&pdev->dev, udc->ep_dqh_size,
- udc->ep_dqh, udc->ep_dqh_dma);
-
- mv_udc_disable(udc);
-
- /* free dev, wait for the release() finished */
- wait_for_completion(udc->done);
-}
-
-static int mv_udc_probe(struct platform_device *pdev)
-{
- struct mv_usb_platform_data *pdata = dev_get_platdata(&pdev->dev);
- struct mv_udc *udc;
- int retval = 0;
- struct resource *r;
- size_t size;
-
- if (pdata == NULL) {
- dev_err(&pdev->dev, "missing platform_data\n");
- return -ENODEV;
- }
-
- udc = devm_kzalloc(&pdev->dev, sizeof(*udc), GFP_KERNEL);
- if (udc == NULL)
- return -ENOMEM;
-
- udc->done = &release_done;
- udc->pdata = dev_get_platdata(&pdev->dev);
- spin_lock_init(&udc->lock);
-
- udc->dev = pdev;
-
- if (pdata->mode == MV_USB_MODE_OTG) {
- udc->transceiver = devm_usb_get_phy(&pdev->dev,
- USB_PHY_TYPE_USB2);
- if (IS_ERR(udc->transceiver)) {
- retval = PTR_ERR(udc->transceiver);
-
- if (retval == -ENXIO)
- return retval;
-
- udc->transceiver = NULL;
- return -EPROBE_DEFER;
- }
- }
-
- /* udc only have one sysclk. */
- udc->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(udc->clk))
- return PTR_ERR(udc->clk);
-
- r = platform_get_resource_byname(udc->dev, IORESOURCE_MEM, "capregs");
- if (r == NULL) {
- dev_err(&pdev->dev, "no I/O memory resource defined\n");
- return -ENODEV;
- }
-
- udc->cap_regs = (struct mv_cap_regs __iomem *)
- devm_ioremap(&pdev->dev, r->start, resource_size(r));
- if (udc->cap_regs == NULL) {
- dev_err(&pdev->dev, "failed to map I/O memory\n");
- return -EBUSY;
- }
-
- r = platform_get_resource_byname(udc->dev, IORESOURCE_MEM, "phyregs");
- if (r == NULL) {
- dev_err(&pdev->dev, "no phy I/O memory resource defined\n");
- return -ENODEV;
- }
-
- udc->phy_regs = devm_ioremap(&pdev->dev, r->start, resource_size(r));
- if (udc->phy_regs == NULL) {
- dev_err(&pdev->dev, "failed to map phy I/O memory\n");
- return -EBUSY;
- }
-
- /* we will acces controller register, so enable the clk */
- retval = mv_udc_enable_internal(udc);
- if (retval)
- return retval;
-
- udc->op_regs =
- (struct mv_op_regs __iomem *)((unsigned long)udc->cap_regs
- + (readl(&udc->cap_regs->caplength_hciversion)
- & CAPLENGTH_MASK));
- udc->max_eps = readl(&udc->cap_regs->dccparams) & DCCPARAMS_DEN_MASK;
-
- /*
- * some platform will use usb to download image, it may not disconnect
- * usb gadget before loading kernel. So first stop udc here.
- */
- udc_stop(udc);
- writel(0xFFFFFFFF, &udc->op_regs->usbsts);
-
- size = udc->max_eps * sizeof(struct mv_dqh) *2;
- size = (size + DQH_ALIGNMENT - 1) & ~(DQH_ALIGNMENT - 1);
- udc->ep_dqh = dma_alloc_coherent(&pdev->dev, size,
- &udc->ep_dqh_dma, GFP_KERNEL);
-
- if (udc->ep_dqh == NULL) {
- dev_err(&pdev->dev, "allocate dQH memory failed\n");
- retval = -ENOMEM;
- goto err_disable_clock;
- }
- udc->ep_dqh_size = size;
-
- /* create dTD dma_pool resource */
- udc->dtd_pool = dma_pool_create("mv_dtd",
- &pdev->dev,
- sizeof(struct mv_dtd),
- DTD_ALIGNMENT,
- DMA_BOUNDARY);
-
- if (!udc->dtd_pool) {
- retval = -ENOMEM;
- goto err_free_dma;
- }
-
- size = udc->max_eps * sizeof(struct mv_ep) *2;
- udc->eps = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
- if (udc->eps == NULL) {
- retval = -ENOMEM;
- goto err_destroy_dma;
- }
-
- /* initialize ep0 status request structure */
- udc->status_req = devm_kzalloc(&pdev->dev, sizeof(struct mv_req),
- GFP_KERNEL);
- if (!udc->status_req) {
- retval = -ENOMEM;
- goto err_destroy_dma;
- }
- INIT_LIST_HEAD(&udc->status_req->queue);
-
- /* allocate a small amount of memory to get valid address */
- udc->status_req->req.buf = devm_kzalloc(&pdev->dev, 8, GFP_KERNEL);
- if (!udc->status_req->req.buf) {
- retval = -ENOMEM;
- goto err_destroy_dma;
- }
- udc->status_req->req.dma = DMA_ADDR_INVALID;
-
- udc->resume_state = USB_STATE_NOTATTACHED;
- udc->usb_state = USB_STATE_POWERED;
- udc->ep0_dir = EP_DIR_OUT;
- udc->remote_wakeup = 0;
-
- r = platform_get_resource(udc->dev, IORESOURCE_IRQ, 0);
- if (r == NULL) {
- dev_err(&pdev->dev, "no IRQ resource defined\n");
- retval = -ENODEV;
- goto err_destroy_dma;
- }
- udc->irq = r->start;
- if (devm_request_irq(&pdev->dev, udc->irq, mv_udc_irq,
- IRQF_SHARED, driver_name, udc)) {
- dev_err(&pdev->dev, "Request irq %d for UDC failed\n",
- udc->irq);
- retval = -ENODEV;
- goto err_destroy_dma;
- }
-
- /* initialize gadget structure */
- udc->gadget.ops = &mv_ops; /* usb_gadget_ops */
- udc->gadget.ep0 = &udc->eps[0].ep; /* gadget ep0 */
- INIT_LIST_HEAD(&udc->gadget.ep_list); /* ep_list */
- udc->gadget.speed = USB_SPEED_UNKNOWN; /* speed */
- udc->gadget.max_speed = USB_SPEED_HIGH; /* support dual speed */
-
- /* the "gadget" abstracts/virtualizes the controller */
- udc->gadget.name = driver_name; /* gadget name */
-
- eps_init(udc);
-
- /* VBUS detect: we can disable/enable clock on demand.*/
- if (udc->transceiver)
- udc->clock_gating = 1;
- else if (pdata->vbus) {
- udc->clock_gating = 1;
- retval = devm_request_threaded_irq(&pdev->dev,
- pdata->vbus->irq, NULL,
- mv_udc_vbus_irq, IRQF_ONESHOT, "vbus", udc);
- if (retval) {
- dev_info(&pdev->dev,
- "Can not request irq for VBUS, "
- "disable clock gating\n");
- udc->clock_gating = 0;
- }
-
- udc->qwork = create_singlethread_workqueue("mv_udc_queue");
- if (!udc->qwork) {
- dev_err(&pdev->dev, "cannot create workqueue\n");
- retval = -ENOMEM;
- goto err_destroy_dma;
- }
-
- INIT_WORK(&udc->vbus_work, mv_udc_vbus_work);
- }
-
- /*
- * When clock gating is supported, we can disable clk and phy.
- * If not, it means that VBUS detection is not supported, we
- * have to enable vbus active all the time to let controller work.
- */
- if (udc->clock_gating)
- mv_udc_disable_internal(udc);
- else
- udc->vbus_active = 1;
-
- retval = usb_add_gadget_udc_release(&pdev->dev, &udc->gadget,
- gadget_release);
- if (retval)
- goto err_create_workqueue;
-
- platform_set_drvdata(pdev, udc);
- dev_info(&pdev->dev, "successful probe UDC device %s clock gating.\n",
- udc->clock_gating ? "with" : "without");
-
- return 0;
-
-err_create_workqueue:
- if (udc->qwork)
- destroy_workqueue(udc->qwork);
-err_destroy_dma:
- dma_pool_destroy(udc->dtd_pool);
-err_free_dma:
- dma_free_coherent(&pdev->dev, udc->ep_dqh_size,
- udc->ep_dqh, udc->ep_dqh_dma);
-err_disable_clock:
- mv_udc_disable_internal(udc);
-
- return retval;
-}
-
-#ifdef CONFIG_PM
-static int mv_udc_suspend(struct device *dev)
-{
- struct mv_udc *udc;
-
- udc = dev_get_drvdata(dev);
-
- /* if OTG is enabled, the following will be done in OTG driver*/
- if (udc->transceiver)
- return 0;
-
- if (udc->pdata->vbus && udc->pdata->vbus->poll)
- if (udc->pdata->vbus->poll() == VBUS_HIGH) {
- dev_info(&udc->dev->dev, "USB cable is connected!\n");
- return -EAGAIN;
- }
-
- /*
- * only cable is unplugged, udc can suspend.
- * So do not care about clock_gating == 1.
- */
- if (!udc->clock_gating) {
- udc_stop(udc);
-
- spin_lock_irq(&udc->lock);
- /* stop all usb activities */
- stop_activity(udc, udc->driver);
- spin_unlock_irq(&udc->lock);
-
- mv_udc_disable_internal(udc);
- }
-
- return 0;
-}
-
-static int mv_udc_resume(struct device *dev)
-{
- struct mv_udc *udc;
- int retval;
-
- udc = dev_get_drvdata(dev);
-
- /* if OTG is enabled, the following will be done in OTG driver*/
- if (udc->transceiver)
- return 0;
-
- if (!udc->clock_gating) {
- retval = mv_udc_enable_internal(udc);
- if (retval)
- return retval;
-
- if (udc->driver && udc->softconnect) {
- udc_reset(udc);
- ep0_reset(udc);
- udc_start(udc);
- }
- }
-
- return 0;
-}
-
-static const struct dev_pm_ops mv_udc_pm_ops = {
- .suspend = mv_udc_suspend,
- .resume = mv_udc_resume,
-};
-#endif
-
-static void mv_udc_shutdown(struct platform_device *pdev)
-{
- struct mv_udc *udc;
- u32 mode;
-
- udc = platform_get_drvdata(pdev);
- /* reset controller mode to IDLE */
- mv_udc_enable(udc);
- mode = readl(&udc->op_regs->usbmode);
- mode &= ~3;
- writel(mode, &udc->op_regs->usbmode);
- mv_udc_disable(udc);
-}
-
-static struct platform_driver udc_driver = {
- .probe = mv_udc_probe,
- .remove = mv_udc_remove,
- .shutdown = mv_udc_shutdown,
- .driver = {
- .name = "mv-udc",
-#ifdef CONFIG_PM
- .pm = &mv_udc_pm_ops,
-#endif
- },
-};
-
-module_platform_driver(udc_driver);
-MODULE_ALIAS("platform:mv-udc");
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_AUTHOR("Chao Xie <chao.xie@...vell.com>");
-MODULE_LICENSE("GPL");
diff --git a/drivers/usb/gadget/udc/net2272.c b/drivers/usb/gadget/udc/net2272.c
deleted file mode 100644
index 7ecddbf5c90d..000000000000
--- a/drivers/usb/gadget/udc/net2272.c
+++ /dev/null
@@ -1,2723 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Driver for PLX NET2272 USB device controller
- *
- * Copyright (C) 2005-2006 PLX Technology, Inc.
- * Copyright (C) 2006-2011 Analog Devices, Inc.
- */
-
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/ioport.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/pci.h>
-#include <linux/platform_device.h>
-#include <linux/prefetch.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/timer.h>
-#include <linux/usb.h>
-#include <linux/usb/ch9.h>
-#include <linux/usb/gadget.h>
-
-#include <asm/byteorder.h>
-#include <linux/unaligned.h>
-
-#include "net2272.h"
-
-#define DRIVER_DESC "PLX NET2272 USB Peripheral Controller"
-
-static const char driver_name[] = "net2272";
-static const char driver_vers[] = "2006 October 17/mainline";
-static const char driver_desc[] = DRIVER_DESC;
-
-static const char ep0name[] = "ep0";
-static const char * const ep_name[] = {
- ep0name,
- "ep-a", "ep-b", "ep-c",
-};
-
-#ifdef CONFIG_USB_NET2272_DMA
-/*
- * use_dma: the NET2272 can use an external DMA controller.
- * Note that since there is no generic DMA api, some functions,
- * notably request_dma, start_dma, and cancel_dma will need to be
- * modified for your platform's particular dma controller.
- *
- * If use_dma is disabled, pio will be used instead.
- */
-static bool use_dma = false;
-module_param(use_dma, bool, 0644);
-
-/*
- * dma_ep: selects the endpoint for use with dma (1=ep-a, 2=ep-b)
- * The NET2272 can only use dma for a single endpoint at a time.
- * At some point this could be modified to allow either endpoint
- * to take control of dma as it becomes available.
- *
- * Note that DMA should not be used on OUT endpoints unless it can
- * be guaranteed that no short packets will arrive on an IN endpoint
- * while the DMA operation is pending. Otherwise the OUT DMA will
- * terminate prematurely (See NET2272 Errata 630-0213-0101)
- */
-static ushort dma_ep = 1;
-module_param(dma_ep, ushort, 0644);
-
-/*
- * dma_mode: net2272 dma mode setting (see LOCCTL1 definition):
- * mode 0 == Slow DREQ mode
- * mode 1 == Fast DREQ mode
- * mode 2 == Burst mode
- */
-static ushort dma_mode = 2;
-module_param(dma_mode, ushort, 0644);
-#else
-#define use_dma 0
-#define dma_ep 1
-#define dma_mode 2
-#endif
-
-/*
- * fifo_mode: net2272 buffer configuration:
- * mode 0 == ep-{a,b,c} 512db each
- * mode 1 == ep-a 1k, ep-{b,c} 512db
- * mode 2 == ep-a 1k, ep-b 1k, ep-c 512db
- * mode 3 == ep-a 1k, ep-b disabled, ep-c 512db
- */
-static ushort fifo_mode;
-module_param(fifo_mode, ushort, 0644);
-
-/*
- * enable_suspend: When enabled, the driver will respond to
- * USB suspend requests by powering down the NET2272. Otherwise,
- * USB suspend requests will be ignored. This is acceptable for
- * self-powered devices. For bus powered devices set this to 1.
- */
-static ushort enable_suspend;
-module_param(enable_suspend, ushort, 0644);
-
-static void assert_out_naking(struct net2272_ep *ep, const char *where)
-{
- u8 tmp;
-
-#ifndef DEBUG
- return;
-#endif
-
- tmp = net2272_ep_read(ep, EP_STAT0);
- if ((tmp & (1 << NAK_OUT_PACKETS)) == 0) {
- dev_dbg(ep->dev->dev, "%s %s %02x !NAK\n",
- ep->ep.name, where, tmp);
- net2272_ep_write(ep, EP_RSPSET, 1 << ALT_NAK_OUT_PACKETS);
- }
-}
-#define ASSERT_OUT_NAKING(ep) assert_out_naking(ep, __func__)
-
-static void stop_out_naking(struct net2272_ep *ep)
-{
- u8 tmp = net2272_ep_read(ep, EP_STAT0);
-
- if ((tmp & (1 << NAK_OUT_PACKETS)) != 0)
- net2272_ep_write(ep, EP_RSPCLR, 1 << ALT_NAK_OUT_PACKETS);
-}
-
-#define PIPEDIR(bAddress) (usb_pipein(bAddress) ? "in" : "out")
-
-static char *type_string(u8 bmAttributes)
-{
- switch ((bmAttributes) & USB_ENDPOINT_XFERTYPE_MASK) {
- case USB_ENDPOINT_XFER_BULK: return "bulk";
- case USB_ENDPOINT_XFER_ISOC: return "iso";
- case USB_ENDPOINT_XFER_INT: return "intr";
- default: return "control";
- }
-}
-
-static char *buf_state_string(unsigned state)
-{
- switch (state) {
- case BUFF_FREE: return "free";
- case BUFF_VALID: return "valid";
- case BUFF_LCL: return "local";
- case BUFF_USB: return "usb";
- default: return "unknown";
- }
-}
-
-static char *dma_mode_string(void)
-{
- if (!use_dma)
- return "PIO";
- switch (dma_mode) {
- case 0: return "SLOW DREQ";
- case 1: return "FAST DREQ";
- case 2: return "BURST";
- default: return "invalid";
- }
-}
-
-static void net2272_dequeue_all(struct net2272_ep *);
-static int net2272_kick_dma(struct net2272_ep *, struct net2272_request *);
-static int net2272_fifo_status(struct usb_ep *);
-
-static const struct usb_ep_ops net2272_ep_ops;
-
-/*---------------------------------------------------------------------------*/
-
-static int
-net2272_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
-{
- struct net2272 *dev;
- struct net2272_ep *ep;
- u32 max;
- u8 tmp;
- unsigned long flags;
-
- ep = container_of(_ep, struct net2272_ep, ep);
- if (!_ep || !desc || ep->desc || _ep->name == ep0name
- || desc->bDescriptorType != USB_DT_ENDPOINT)
- return -EINVAL;
- dev = ep->dev;
- if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)
- return -ESHUTDOWN;
-
- max = usb_endpoint_maxp(desc);
-
- spin_lock_irqsave(&dev->lock, flags);
- _ep->maxpacket = max;
- ep->desc = desc;
-
- /* net2272_ep_reset() has already been called */
- ep->stopped = 0;
- ep->wedged = 0;
-
- /* set speed-dependent max packet */
- net2272_ep_write(ep, EP_MAXPKT0, max & 0xff);
- net2272_ep_write(ep, EP_MAXPKT1, (max & 0xff00) >> 8);
-
- /* set type, direction, address; reset fifo counters */
- net2272_ep_write(ep, EP_STAT1, 1 << BUFFER_FLUSH);
- tmp = usb_endpoint_type(desc);
- if (usb_endpoint_xfer_bulk(desc)) {
- /* catch some particularly blatant driver bugs */
- if ((dev->gadget.speed == USB_SPEED_HIGH && max != 512) ||
- (dev->gadget.speed == USB_SPEED_FULL && max > 64)) {
- spin_unlock_irqrestore(&dev->lock, flags);
- return -ERANGE;
- }
- }
- ep->is_iso = usb_endpoint_xfer_isoc(desc) ? 1 : 0;
- tmp <<= ENDPOINT_TYPE;
- tmp |= ((desc->bEndpointAddress & 0x0f) << ENDPOINT_NUMBER);
- tmp |= usb_endpoint_dir_in(desc) << ENDPOINT_DIRECTION;
- tmp |= (1 << ENDPOINT_ENABLE);
-
- /* for OUT transfers, block the rx fifo until a read is posted */
- ep->is_in = usb_endpoint_dir_in(desc);
- if (!ep->is_in)
- net2272_ep_write(ep, EP_RSPSET, 1 << ALT_NAK_OUT_PACKETS);
-
- net2272_ep_write(ep, EP_CFG, tmp);
-
- /* enable irqs */
- tmp = (1 << ep->num) | net2272_read(dev, IRQENB0);
- net2272_write(dev, IRQENB0, tmp);
-
- tmp = (1 << DATA_PACKET_RECEIVED_INTERRUPT_ENABLE)
- | (1 << DATA_PACKET_TRANSMITTED_INTERRUPT_ENABLE)
- | net2272_ep_read(ep, EP_IRQENB);
- net2272_ep_write(ep, EP_IRQENB, tmp);
-
- tmp = desc->bEndpointAddress;
- dev_dbg(dev->dev, "enabled %s (ep%d%s-%s) max %04x cfg %02x\n",
- _ep->name, tmp & 0x0f, PIPEDIR(tmp),
- type_string(desc->bmAttributes), max,
- net2272_ep_read(ep, EP_CFG));
-
- spin_unlock_irqrestore(&dev->lock, flags);
- return 0;
-}
-
-static void net2272_ep_reset(struct net2272_ep *ep)
-{
- u8 tmp;
-
- ep->desc = NULL;
- INIT_LIST_HEAD(&ep->queue);
-
- usb_ep_set_maxpacket_limit(&ep->ep, ~0);
- ep->ep.ops = &net2272_ep_ops;
-
- /* disable irqs, endpoint */
- net2272_ep_write(ep, EP_IRQENB, 0);
-
- /* init to our chosen defaults, notably so that we NAK OUT
- * packets until the driver queues a read.
- */
- tmp = (1 << NAK_OUT_PACKETS_MODE) | (1 << ALT_NAK_OUT_PACKETS);
- net2272_ep_write(ep, EP_RSPSET, tmp);
-
- tmp = (1 << INTERRUPT_MODE) | (1 << HIDE_STATUS_PHASE);
- if (ep->num != 0)
- tmp |= (1 << ENDPOINT_TOGGLE) | (1 << ENDPOINT_HALT);
-
- net2272_ep_write(ep, EP_RSPCLR, tmp);
-
- /* scrub most status bits, and flush any fifo state */
- net2272_ep_write(ep, EP_STAT0,
- (1 << DATA_IN_TOKEN_INTERRUPT)
- | (1 << DATA_OUT_TOKEN_INTERRUPT)
- | (1 << DATA_PACKET_TRANSMITTED_INTERRUPT)
- | (1 << DATA_PACKET_RECEIVED_INTERRUPT)
- | (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT));
-
- net2272_ep_write(ep, EP_STAT1,
- (1 << TIMEOUT)
- | (1 << USB_OUT_ACK_SENT)
- | (1 << USB_OUT_NAK_SENT)
- | (1 << USB_IN_ACK_RCVD)
- | (1 << USB_IN_NAK_SENT)
- | (1 << USB_STALL_SENT)
- | (1 << LOCAL_OUT_ZLP)
- | (1 << BUFFER_FLUSH));
-
- /* fifo size is handled separately */
-}
-
-static int net2272_disable(struct usb_ep *_ep)
-{
- struct net2272_ep *ep;
- unsigned long flags;
-
- ep = container_of(_ep, struct net2272_ep, ep);
- if (!_ep || !ep->desc || _ep->name == ep0name)
- return -EINVAL;
-
- spin_lock_irqsave(&ep->dev->lock, flags);
- net2272_dequeue_all(ep);
- net2272_ep_reset(ep);
-
- dev_vdbg(ep->dev->dev, "disabled %s\n", _ep->name);
-
- spin_unlock_irqrestore(&ep->dev->lock, flags);
- return 0;
-}
-
-/*---------------------------------------------------------------------------*/
-
-static struct usb_request *
-net2272_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags)
-{
- struct net2272_request *req;
-
- if (!_ep)
- return NULL;
-
- req = kzalloc(sizeof(*req), gfp_flags);
- if (!req)
- return NULL;
-
- INIT_LIST_HEAD(&req->queue);
-
- return &req->req;
-}
-
-static void
-net2272_free_request(struct usb_ep *_ep, struct usb_request *_req)
-{
- struct net2272_request *req;
-
- if (!_ep || !_req)
- return;
-
- req = container_of(_req, struct net2272_request, req);
- WARN_ON(!list_empty(&req->queue));
- kfree(req);
-}
-
-static void
-net2272_done(struct net2272_ep *ep, struct net2272_request *req, int status)
-{
- struct net2272 *dev;
- unsigned stopped = ep->stopped;
-
- if (ep->num == 0) {
- if (ep->dev->protocol_stall) {
- ep->stopped = 1;
- set_halt(ep);
- }
- allow_status(ep);
- }
-
- list_del_init(&req->queue);
-
- if (req->req.status == -EINPROGRESS)
- req->req.status = status;
- else
- status = req->req.status;
-
- dev = ep->dev;
- if (use_dma && ep->dma)
- usb_gadget_unmap_request(&dev->gadget, &req->req,
- ep->is_in);
-
- if (status && status != -ESHUTDOWN)
- dev_vdbg(dev->dev, "complete %s req %p stat %d len %u/%u buf %p\n",
- ep->ep.name, &req->req, status,
- req->req.actual, req->req.length, req->req.buf);
-
- /* don't modify queue heads during completion callback */
- ep->stopped = 1;
- spin_unlock(&dev->lock);
- usb_gadget_giveback_request(&ep->ep, &req->req);
- spin_lock(&dev->lock);
- ep->stopped = stopped;
-}
-
-static int
-net2272_write_packet(struct net2272_ep *ep, u8 *buf,
- struct net2272_request *req, unsigned max)
-{
- u16 __iomem *ep_data = net2272_reg_addr(ep->dev, EP_DATA);
- u16 *bufp;
- unsigned length, count;
- u8 tmp;
-
- length = min(req->req.length - req->req.actual, max);
- req->req.actual += length;
-
- dev_vdbg(ep->dev->dev, "write packet %s req %p max %u len %u avail %u\n",
- ep->ep.name, req, max, length,
- (net2272_ep_read(ep, EP_AVAIL1) << 8) | net2272_ep_read(ep, EP_AVAIL0));
-
- count = length;
- bufp = (u16 *)buf;
-
- while (likely(count >= 2)) {
- /* no byte-swap required; chip endian set during init */
- writew(*bufp++, ep_data);
- count -= 2;
- }
- buf = (u8 *)bufp;
-
- /* write final byte by placing the NET2272 into 8-bit mode */
- if (unlikely(count)) {
- tmp = net2272_read(ep->dev, LOCCTL);
- net2272_write(ep->dev, LOCCTL, tmp & ~(1 << DATA_WIDTH));
- writeb(*buf, ep_data);
- net2272_write(ep->dev, LOCCTL, tmp);
- }
- return length;
-}
-
-/* returns: 0: still running, 1: completed, negative: errno */
-static int
-net2272_write_fifo(struct net2272_ep *ep, struct net2272_request *req)
-{
- u8 *buf;
- unsigned count, max;
- int status;
-
- dev_vdbg(ep->dev->dev, "write_fifo %s actual %d len %d\n",
- ep->ep.name, req->req.actual, req->req.length);
-
- /*
- * Keep loading the endpoint until the final packet is loaded,
- * or the endpoint buffer is full.
- */
- top:
- /*
- * Clear interrupt status
- * - Packet Transmitted interrupt will become set again when the
- * host successfully takes another packet
- */
- net2272_ep_write(ep, EP_STAT0, (1 << DATA_PACKET_TRANSMITTED_INTERRUPT));
- while (!(net2272_ep_read(ep, EP_STAT0) & (1 << BUFFER_FULL))) {
- buf = req->req.buf + req->req.actual;
- prefetch(buf);
-
- /* force pagesel */
- net2272_ep_read(ep, EP_STAT0);
-
- max = (net2272_ep_read(ep, EP_AVAIL1) << 8) |
- (net2272_ep_read(ep, EP_AVAIL0));
-
- if (max < ep->ep.maxpacket)
- max = (net2272_ep_read(ep, EP_AVAIL1) << 8)
- | (net2272_ep_read(ep, EP_AVAIL0));
-
- count = net2272_write_packet(ep, buf, req, max);
- /* see if we are done */
- if (req->req.length == req->req.actual) {
- /* validate short or zlp packet */
- if (count < ep->ep.maxpacket)
- set_fifo_bytecount(ep, 0);
- net2272_done(ep, req, 0);
-
- if (!list_empty(&ep->queue)) {
- req = list_entry(ep->queue.next,
- struct net2272_request,
- queue);
- status = net2272_kick_dma(ep, req);
-
- if (status < 0)
- if ((net2272_ep_read(ep, EP_STAT0)
- & (1 << BUFFER_EMPTY)))
- goto top;
- }
- return 1;
- }
- net2272_ep_write(ep, EP_STAT0, (1 << DATA_PACKET_TRANSMITTED_INTERRUPT));
- }
- return 0;
-}
-
-static void
-net2272_out_flush(struct net2272_ep *ep)
-{
- ASSERT_OUT_NAKING(ep);
-
- net2272_ep_write(ep, EP_STAT0, (1 << DATA_OUT_TOKEN_INTERRUPT)
- | (1 << DATA_PACKET_RECEIVED_INTERRUPT));
- net2272_ep_write(ep, EP_STAT1, 1 << BUFFER_FLUSH);
-}
-
-static int
-net2272_read_packet(struct net2272_ep *ep, u8 *buf,
- struct net2272_request *req, unsigned avail)
-{
- u16 __iomem *ep_data = net2272_reg_addr(ep->dev, EP_DATA);
- unsigned is_short;
- u16 *bufp;
-
- req->req.actual += avail;
-
- dev_vdbg(ep->dev->dev, "read packet %s req %p len %u avail %u\n",
- ep->ep.name, req, avail,
- (net2272_ep_read(ep, EP_AVAIL1) << 8) | net2272_ep_read(ep, EP_AVAIL0));
-
- is_short = (avail < ep->ep.maxpacket);
-
- if (unlikely(avail == 0)) {
- /* remove any zlp from the buffer */
- (void)readw(ep_data);
- return is_short;
- }
-
- /* Ensure we get the final byte */
- if (unlikely(avail % 2))
- avail++;
- bufp = (u16 *)buf;
-
- do {
- *bufp++ = readw(ep_data);
- avail -= 2;
- } while (avail);
-
- /*
- * To avoid false endpoint available race condition must read
- * ep stat0 twice in the case of a short transfer
- */
- if (net2272_ep_read(ep, EP_STAT0) & (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT))
- net2272_ep_read(ep, EP_STAT0);
-
- return is_short;
-}
-
-static int
-net2272_read_fifo(struct net2272_ep *ep, struct net2272_request *req)
-{
- u8 *buf;
- unsigned is_short;
- int count;
- int tmp;
- int cleanup = 0;
-
- dev_vdbg(ep->dev->dev, "read_fifo %s actual %d len %d\n",
- ep->ep.name, req->req.actual, req->req.length);
-
- top:
- do {
- buf = req->req.buf + req->req.actual;
- prefetchw(buf);
-
- count = (net2272_ep_read(ep, EP_AVAIL1) << 8)
- | net2272_ep_read(ep, EP_AVAIL0);
-
- net2272_ep_write(ep, EP_STAT0,
- (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT) |
- (1 << DATA_PACKET_RECEIVED_INTERRUPT));
-
- tmp = req->req.length - req->req.actual;
-
- if (count > tmp) {
- if ((tmp % ep->ep.maxpacket) != 0) {
- dev_err(ep->dev->dev,
- "%s out fifo %d bytes, expected %d\n",
- ep->ep.name, count, tmp);
- cleanup = 1;
- }
- count = (tmp > 0) ? tmp : 0;
- }
-
- is_short = net2272_read_packet(ep, buf, req, count);
-
- /* completion */
- if (unlikely(cleanup || is_short ||
- req->req.actual == req->req.length)) {
-
- if (cleanup) {
- net2272_out_flush(ep);
- net2272_done(ep, req, -EOVERFLOW);
- } else
- net2272_done(ep, req, 0);
-
- /* re-initialize endpoint transfer registers
- * otherwise they may result in erroneous pre-validation
- * for subsequent control reads
- */
- if (unlikely(ep->num == 0)) {
- net2272_ep_write(ep, EP_TRANSFER2, 0);
- net2272_ep_write(ep, EP_TRANSFER1, 0);
- net2272_ep_write(ep, EP_TRANSFER0, 0);
- }
-
- if (!list_empty(&ep->queue)) {
- int status;
-
- req = list_entry(ep->queue.next,
- struct net2272_request, queue);
- status = net2272_kick_dma(ep, req);
- if ((status < 0) &&
- !(net2272_ep_read(ep, EP_STAT0) & (1 << BUFFER_EMPTY)))
- goto top;
- }
- return 1;
- }
- } while (!(net2272_ep_read(ep, EP_STAT0) & (1 << BUFFER_EMPTY)));
-
- return 0;
-}
-
-static void
-net2272_pio_advance(struct net2272_ep *ep)
-{
- struct net2272_request *req;
-
- if (unlikely(list_empty(&ep->queue)))
- return;
-
- req = list_entry(ep->queue.next, struct net2272_request, queue);
- (ep->is_in ? net2272_write_fifo : net2272_read_fifo)(ep, req);
-}
-
-/* returns 0 on success, else negative errno */
-static int
-net2272_request_dma(struct net2272 *dev, unsigned ep, u32 buf,
- unsigned len, unsigned dir)
-{
- dev_vdbg(dev->dev, "request_dma ep %d buf %08x len %d dir %d\n",
- ep, buf, len, dir);
-
- /* The NET2272 only supports a single dma channel */
- if (dev->dma_busy)
- return -EBUSY;
- /*
- * EP_TRANSFER (used to determine the number of bytes received
- * in an OUT transfer) is 24 bits wide; don't ask for more than that.
- */
- if ((dir == 1) && (len > 0x1000000))
- return -EINVAL;
-
- dev->dma_busy = 1;
-
- /* initialize platform's dma */
-#ifdef CONFIG_USB_PCI
- /* NET2272 addr, buffer addr, length, etc. */
- switch (dev->dev_id) {
- case PCI_DEVICE_ID_RDK1:
- /* Setup PLX 9054 DMA mode */
- writel((1 << LOCAL_BUS_WIDTH) |
- (1 << TA_READY_INPUT_ENABLE) |
- (0 << LOCAL_BURST_ENABLE) |
- (1 << DONE_INTERRUPT_ENABLE) |
- (1 << LOCAL_ADDRESSING_MODE) |
- (1 << DEMAND_MODE) |
- (1 << DMA_EOT_ENABLE) |
- (1 << FAST_SLOW_TERMINATE_MODE_SELECT) |
- (1 << DMA_CHANNEL_INTERRUPT_SELECT),
- dev->rdk1.plx9054_base_addr + DMAMODE0);
-
- writel(0x100000, dev->rdk1.plx9054_base_addr + DMALADR0);
- writel(buf, dev->rdk1.plx9054_base_addr + DMAPADR0);
- writel(len, dev->rdk1.plx9054_base_addr + DMASIZ0);
- writel((dir << DIRECTION_OF_TRANSFER) |
- (1 << INTERRUPT_AFTER_TERMINAL_COUNT),
- dev->rdk1.plx9054_base_addr + DMADPR0);
- writel((1 << LOCAL_DMA_CHANNEL_0_INTERRUPT_ENABLE) |
- readl(dev->rdk1.plx9054_base_addr + INTCSR),
- dev->rdk1.plx9054_base_addr + INTCSR);
-
- break;
- }
-#endif
-
- net2272_write(dev, DMAREQ,
- (0 << DMA_BUFFER_VALID) |
- (1 << DMA_REQUEST_ENABLE) |
- (1 << DMA_CONTROL_DACK) |
- (dev->dma_eot_polarity << EOT_POLARITY) |
- (dev->dma_dack_polarity << DACK_POLARITY) |
- (dev->dma_dreq_polarity << DREQ_POLARITY) |
- ((ep >> 1) << DMA_ENDPOINT_SELECT));
-
- (void) net2272_read(dev, SCRATCH);
-
- return 0;
-}
-
-static void
-net2272_start_dma(struct net2272 *dev)
-{
- /* start platform's dma controller */
-#ifdef CONFIG_USB_PCI
- switch (dev->dev_id) {
- case PCI_DEVICE_ID_RDK1:
- writeb((1 << CHANNEL_ENABLE) | (1 << CHANNEL_START),
- dev->rdk1.plx9054_base_addr + DMACSR0);
- break;
- }
-#endif
-}
-
-/* returns 0 on success, else negative errno */
-static int
-net2272_kick_dma(struct net2272_ep *ep, struct net2272_request *req)
-{
- unsigned size;
- u8 tmp;
-
- if (!use_dma || (ep->num < 1) || (ep->num > 2) || !ep->dma)
- return -EINVAL;
-
- /* don't use dma for odd-length transfers
- * otherwise, we'd need to deal with the last byte with pio
- */
- if (req->req.length & 1)
- return -EINVAL;
-
- dev_vdbg(ep->dev->dev, "kick_dma %s req %p dma %08llx\n",
- ep->ep.name, req, (unsigned long long) req->req.dma);
-
- net2272_ep_write(ep, EP_RSPSET, 1 << ALT_NAK_OUT_PACKETS);
-
- /* The NET2272 can only use DMA on one endpoint at a time */
- if (ep->dev->dma_busy)
- return -EBUSY;
-
- /* Make sure we only DMA an even number of bytes (we'll use
- * pio to complete the transfer)
- */
- size = req->req.length;
- size &= ~1;
-
- /* device-to-host transfer */
- if (ep->is_in) {
- /* initialize platform's dma controller */
- if (net2272_request_dma(ep->dev, ep->num, req->req.dma, size, 0))
- /* unable to obtain DMA channel; return error and use pio mode */
- return -EBUSY;
- req->req.actual += size;
-
- /* host-to-device transfer */
- } else {
- tmp = net2272_ep_read(ep, EP_STAT0);
-
- /* initialize platform's dma controller */
- if (net2272_request_dma(ep->dev, ep->num, req->req.dma, size, 1))
- /* unable to obtain DMA channel; return error and use pio mode */
- return -EBUSY;
-
- if (!(tmp & (1 << BUFFER_EMPTY)))
- ep->not_empty = 1;
- else
- ep->not_empty = 0;
-
-
- /* allow the endpoint's buffer to fill */
- net2272_ep_write(ep, EP_RSPCLR, 1 << ALT_NAK_OUT_PACKETS);
-
- /* this transfer completed and data's already in the fifo
- * return error so pio gets used.
- */
- if (tmp & (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT)) {
-
- /* deassert dreq */
- net2272_write(ep->dev, DMAREQ,
- (0 << DMA_BUFFER_VALID) |
- (0 << DMA_REQUEST_ENABLE) |
- (1 << DMA_CONTROL_DACK) |
- (ep->dev->dma_eot_polarity << EOT_POLARITY) |
- (ep->dev->dma_dack_polarity << DACK_POLARITY) |
- (ep->dev->dma_dreq_polarity << DREQ_POLARITY) |
- ((ep->num >> 1) << DMA_ENDPOINT_SELECT));
-
- return -EBUSY;
- }
- }
-
- /* Don't use per-packet interrupts: use dma interrupts only */
- net2272_ep_write(ep, EP_IRQENB, 0);
-
- net2272_start_dma(ep->dev);
-
- return 0;
-}
-
-static void net2272_cancel_dma(struct net2272 *dev)
-{
-#ifdef CONFIG_USB_PCI
- switch (dev->dev_id) {
- case PCI_DEVICE_ID_RDK1:
- writeb(0, dev->rdk1.plx9054_base_addr + DMACSR0);
- writeb(1 << CHANNEL_ABORT, dev->rdk1.plx9054_base_addr + DMACSR0);
- while (!(readb(dev->rdk1.plx9054_base_addr + DMACSR0) &
- (1 << CHANNEL_DONE)))
- continue; /* wait for dma to stabalize */
-
- /* dma abort generates an interrupt */
- writeb(1 << CHANNEL_CLEAR_INTERRUPT,
- dev->rdk1.plx9054_base_addr + DMACSR0);
- break;
- }
-#endif
-
- dev->dma_busy = 0;
-}
-
-/*---------------------------------------------------------------------------*/
-
-static int
-net2272_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
-{
- struct net2272_request *req;
- struct net2272_ep *ep;
- struct net2272 *dev;
- unsigned long flags;
- int status = -1;
- u8 s;
-
- req = container_of(_req, struct net2272_request, req);
- if (!_req || !_req->complete || !_req->buf
- || !list_empty(&req->queue))
- return -EINVAL;
- ep = container_of(_ep, struct net2272_ep, ep);
- if (!_ep || (!ep->desc && ep->num != 0))
- return -EINVAL;
- dev = ep->dev;
- if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)
- return -ESHUTDOWN;
-
- /* set up dma mapping in case the caller didn't */
- if (use_dma && ep->dma) {
- status = usb_gadget_map_request(&dev->gadget, _req,
- ep->is_in);
- if (status)
- return status;
- }
-
- dev_vdbg(dev->dev, "%s queue req %p, len %d buf %p dma %08llx %s\n",
- _ep->name, _req, _req->length, _req->buf,
- (unsigned long long) _req->dma, _req->zero ? "zero" : "!zero");
-
- spin_lock_irqsave(&dev->lock, flags);
-
- _req->status = -EINPROGRESS;
- _req->actual = 0;
-
- /* kickstart this i/o queue? */
- if (list_empty(&ep->queue) && !ep->stopped) {
- /* maybe there's no control data, just status ack */
- if (ep->num == 0 && _req->length == 0) {
- net2272_done(ep, req, 0);
- dev_vdbg(dev->dev, "%s status ack\n", ep->ep.name);
- goto done;
- }
-
- /* Return zlp, don't let it block subsequent packets */
- s = net2272_ep_read(ep, EP_STAT0);
- if (s & (1 << BUFFER_EMPTY)) {
- /* Buffer is empty check for a blocking zlp, handle it */
- if ((s & (1 << NAK_OUT_PACKETS)) &&
- net2272_ep_read(ep, EP_STAT1) & (1 << LOCAL_OUT_ZLP)) {
- dev_dbg(dev->dev, "WARNING: returning ZLP short packet termination!\n");
- /*
- * Request is going to terminate with a short packet ...
- * hope the client is ready for it!
- */
- status = net2272_read_fifo(ep, req);
- /* clear short packet naking */
- net2272_ep_write(ep, EP_STAT0, (1 << NAK_OUT_PACKETS));
- goto done;
- }
- }
-
- /* try dma first */
- status = net2272_kick_dma(ep, req);
-
- if (status < 0) {
- /* dma failed (most likely in use by another endpoint)
- * fallback to pio
- */
- status = 0;
-
- if (ep->is_in)
- status = net2272_write_fifo(ep, req);
- else {
- s = net2272_ep_read(ep, EP_STAT0);
- if ((s & (1 << BUFFER_EMPTY)) == 0)
- status = net2272_read_fifo(ep, req);
- }
-
- if (unlikely(status != 0)) {
- if (status > 0)
- status = 0;
- req = NULL;
- }
- }
- }
- if (likely(req))
- list_add_tail(&req->queue, &ep->queue);
-
- if (likely(!list_empty(&ep->queue)))
- net2272_ep_write(ep, EP_RSPCLR, 1 << ALT_NAK_OUT_PACKETS);
- done:
- spin_unlock_irqrestore(&dev->lock, flags);
-
- return 0;
-}
-
-/* dequeue ALL requests */
-static void
-net2272_dequeue_all(struct net2272_ep *ep)
-{
- struct net2272_request *req;
-
- /* called with spinlock held */
- ep->stopped = 1;
-
- while (!list_empty(&ep->queue)) {
- req = list_entry(ep->queue.next,
- struct net2272_request,
- queue);
- net2272_done(ep, req, -ESHUTDOWN);
- }
-}
-
-/* dequeue JUST ONE request */
-static int
-net2272_dequeue(struct usb_ep *_ep, struct usb_request *_req)
-{
- struct net2272_ep *ep;
- struct net2272_request *req = NULL, *iter;
- unsigned long flags;
- int stopped;
-
- ep = container_of(_ep, struct net2272_ep, ep);
- if (!_ep || (!ep->desc && ep->num != 0) || !_req)
- return -EINVAL;
-
- spin_lock_irqsave(&ep->dev->lock, flags);
- stopped = ep->stopped;
- ep->stopped = 1;
-
- /* make sure it's still queued on this endpoint */
- list_for_each_entry(iter, &ep->queue, queue) {
- if (&iter->req != _req)
- continue;
- req = iter;
- break;
- }
- if (!req) {
- ep->stopped = stopped;
- spin_unlock_irqrestore(&ep->dev->lock, flags);
- return -EINVAL;
- }
-
- /* queue head may be partially complete */
- if (ep->queue.next == &req->queue) {
- dev_dbg(ep->dev->dev, "unlink (%s) pio\n", _ep->name);
- net2272_done(ep, req, -ECONNRESET);
- }
- ep->stopped = stopped;
-
- spin_unlock_irqrestore(&ep->dev->lock, flags);
- return 0;
-}
-
-/*---------------------------------------------------------------------------*/
-
-static int
-net2272_set_halt_and_wedge(struct usb_ep *_ep, int value, int wedged)
-{
- struct net2272_ep *ep;
- unsigned long flags;
- int ret = 0;
-
- ep = container_of(_ep, struct net2272_ep, ep);
- if (!_ep || (!ep->desc && ep->num != 0))
- return -EINVAL;
- if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN)
- return -ESHUTDOWN;
- if (ep->desc /* not ep0 */ && usb_endpoint_xfer_isoc(ep->desc))
- return -EINVAL;
-
- spin_lock_irqsave(&ep->dev->lock, flags);
- if (!list_empty(&ep->queue))
- ret = -EAGAIN;
- else if (ep->is_in && value && net2272_fifo_status(_ep) != 0)
- ret = -EAGAIN;
- else {
- dev_vdbg(ep->dev->dev, "%s %s %s\n", _ep->name,
- value ? "set" : "clear",
- wedged ? "wedge" : "halt");
- /* set/clear */
- if (value) {
- if (ep->num == 0)
- ep->dev->protocol_stall = 1;
- else
- set_halt(ep);
- if (wedged)
- ep->wedged = 1;
- } else {
- clear_halt(ep);
- ep->wedged = 0;
- }
- }
- spin_unlock_irqrestore(&ep->dev->lock, flags);
-
- return ret;
-}
-
-static int
-net2272_set_halt(struct usb_ep *_ep, int value)
-{
- return net2272_set_halt_and_wedge(_ep, value, 0);
-}
-
-static int
-net2272_set_wedge(struct usb_ep *_ep)
-{
- if (!_ep || _ep->name == ep0name)
- return -EINVAL;
- return net2272_set_halt_and_wedge(_ep, 1, 1);
-}
-
-static int
-net2272_fifo_status(struct usb_ep *_ep)
-{
- struct net2272_ep *ep;
- u16 avail;
-
- ep = container_of(_ep, struct net2272_ep, ep);
- if (!_ep || (!ep->desc && ep->num != 0))
- return -ENODEV;
- if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN)
- return -ESHUTDOWN;
-
- avail = net2272_ep_read(ep, EP_AVAIL1) << 8;
- avail |= net2272_ep_read(ep, EP_AVAIL0);
- if (avail > ep->fifo_size)
- return -EOVERFLOW;
- if (ep->is_in)
- avail = ep->fifo_size - avail;
- return avail;
-}
-
-static void
-net2272_fifo_flush(struct usb_ep *_ep)
-{
- struct net2272_ep *ep;
-
- ep = container_of(_ep, struct net2272_ep, ep);
- if (!_ep || (!ep->desc && ep->num != 0))
- return;
- if (!ep->dev->driver || ep->dev->gadget.speed == USB_SPEED_UNKNOWN)
- return;
-
- net2272_ep_write(ep, EP_STAT1, 1 << BUFFER_FLUSH);
-}
-
-static const struct usb_ep_ops net2272_ep_ops = {
- .enable = net2272_enable,
- .disable = net2272_disable,
-
- .alloc_request = net2272_alloc_request,
- .free_request = net2272_free_request,
-
- .queue = net2272_queue,
- .dequeue = net2272_dequeue,
-
- .set_halt = net2272_set_halt,
- .set_wedge = net2272_set_wedge,
- .fifo_status = net2272_fifo_status,
- .fifo_flush = net2272_fifo_flush,
-};
-
-/*---------------------------------------------------------------------------*/
-
-static int
-net2272_get_frame(struct usb_gadget *_gadget)
-{
- struct net2272 *dev;
- unsigned long flags;
- u16 ret;
-
- if (!_gadget)
- return -ENODEV;
- dev = container_of(_gadget, struct net2272, gadget);
- spin_lock_irqsave(&dev->lock, flags);
-
- ret = net2272_read(dev, FRAME1) << 8;
- ret |= net2272_read(dev, FRAME0);
-
- spin_unlock_irqrestore(&dev->lock, flags);
- return ret;
-}
-
-static int
-net2272_wakeup(struct usb_gadget *_gadget)
-{
- struct net2272 *dev;
- u8 tmp;
- unsigned long flags;
-
- if (!_gadget)
- return 0;
- dev = container_of(_gadget, struct net2272, gadget);
-
- spin_lock_irqsave(&dev->lock, flags);
- tmp = net2272_read(dev, USBCTL0);
- if (tmp & (1 << IO_WAKEUP_ENABLE))
- net2272_write(dev, USBCTL1, (1 << GENERATE_RESUME));
-
- spin_unlock_irqrestore(&dev->lock, flags);
-
- return 0;
-}
-
-static int
-net2272_set_selfpowered(struct usb_gadget *_gadget, int value)
-{
- if (!_gadget)
- return -ENODEV;
-
- _gadget->is_selfpowered = (value != 0);
-
- return 0;
-}
-
-static int
-net2272_pullup(struct usb_gadget *_gadget, int is_on)
-{
- struct net2272 *dev;
- u8 tmp;
- unsigned long flags;
-
- if (!_gadget)
- return -ENODEV;
- dev = container_of(_gadget, struct net2272, gadget);
-
- spin_lock_irqsave(&dev->lock, flags);
- tmp = net2272_read(dev, USBCTL0);
- dev->softconnect = (is_on != 0);
- if (is_on)
- tmp |= (1 << USB_DETECT_ENABLE);
- else
- tmp &= ~(1 << USB_DETECT_ENABLE);
- net2272_write(dev, USBCTL0, tmp);
- spin_unlock_irqrestore(&dev->lock, flags);
-
- return 0;
-}
-
-static int net2272_start(struct usb_gadget *_gadget,
- struct usb_gadget_driver *driver);
-static int net2272_stop(struct usb_gadget *_gadget);
-static void net2272_async_callbacks(struct usb_gadget *_gadget, bool enable);
-
-static const struct usb_gadget_ops net2272_ops = {
- .get_frame = net2272_get_frame,
- .wakeup = net2272_wakeup,
- .set_selfpowered = net2272_set_selfpowered,
- .pullup = net2272_pullup,
- .udc_start = net2272_start,
- .udc_stop = net2272_stop,
- .udc_async_callbacks = net2272_async_callbacks,
-};
-
-/*---------------------------------------------------------------------------*/
-
-static ssize_t
-registers_show(struct device *_dev, struct device_attribute *attr, char *buf)
-{
- struct net2272 *dev;
- char *next;
- unsigned size, t;
- unsigned long flags;
- u8 t1, t2;
- int i;
- const char *s;
-
- dev = dev_get_drvdata(_dev);
- next = buf;
- size = PAGE_SIZE;
- spin_lock_irqsave(&dev->lock, flags);
-
- /* Main Control Registers */
- t = scnprintf(next, size, "%s version %s,"
- "chiprev %02x, locctl %02x\n"
- "irqenb0 %02x irqenb1 %02x "
- "irqstat0 %02x irqstat1 %02x\n",
- driver_name, driver_vers, dev->chiprev,
- net2272_read(dev, LOCCTL),
- net2272_read(dev, IRQENB0),
- net2272_read(dev, IRQENB1),
- net2272_read(dev, IRQSTAT0),
- net2272_read(dev, IRQSTAT1));
- size -= t;
- next += t;
-
- /* DMA */
- t1 = net2272_read(dev, DMAREQ);
- t = scnprintf(next, size, "\ndmareq %02x: %s %s%s%s%s\n",
- t1, ep_name[(t1 & 0x01) + 1],
- t1 & (1 << DMA_CONTROL_DACK) ? "dack " : "",
- t1 & (1 << DMA_REQUEST_ENABLE) ? "reqenb " : "",
- t1 & (1 << DMA_REQUEST) ? "req " : "",
- t1 & (1 << DMA_BUFFER_VALID) ? "valid " : "");
- size -= t;
- next += t;
-
- /* USB Control Registers */
- t1 = net2272_read(dev, USBCTL1);
- if (t1 & (1 << VBUS_PIN)) {
- if (t1 & (1 << USB_HIGH_SPEED))
- s = "high speed";
- else if (dev->gadget.speed == USB_SPEED_UNKNOWN)
- s = "powered";
- else
- s = "full speed";
- } else
- s = "not attached";
- t = scnprintf(next, size,
- "usbctl0 %02x usbctl1 %02x addr 0x%02x (%s)\n",
- net2272_read(dev, USBCTL0), t1,
- net2272_read(dev, OURADDR), s);
- size -= t;
- next += t;
-
- /* Endpoint Registers */
- for (i = 0; i < 4; ++i) {
- struct net2272_ep *ep;
-
- ep = &dev->ep[i];
- if (i && !ep->desc)
- continue;
-
- t1 = net2272_ep_read(ep, EP_CFG);
- t2 = net2272_ep_read(ep, EP_RSPSET);
- t = scnprintf(next, size,
- "\n%s\tcfg %02x rsp (%02x) %s%s%s%s%s%s%s%s"
- "irqenb %02x\n",
- ep->ep.name, t1, t2,
- (t2 & (1 << ALT_NAK_OUT_PACKETS)) ? "NAK " : "",
- (t2 & (1 << HIDE_STATUS_PHASE)) ? "hide " : "",
- (t2 & (1 << AUTOVALIDATE)) ? "auto " : "",
- (t2 & (1 << INTERRUPT_MODE)) ? "interrupt " : "",
- (t2 & (1 << CONTROL_STATUS_PHASE_HANDSHAKE)) ? "status " : "",
- (t2 & (1 << NAK_OUT_PACKETS_MODE)) ? "NAKmode " : "",
- (t2 & (1 << ENDPOINT_TOGGLE)) ? "DATA1 " : "DATA0 ",
- (t2 & (1 << ENDPOINT_HALT)) ? "HALT " : "",
- net2272_ep_read(ep, EP_IRQENB));
- size -= t;
- next += t;
-
- t = scnprintf(next, size,
- "\tstat0 %02x stat1 %02x avail %04x "
- "(ep%d%s-%s)%s\n",
- net2272_ep_read(ep, EP_STAT0),
- net2272_ep_read(ep, EP_STAT1),
- (net2272_ep_read(ep, EP_AVAIL1) << 8) | net2272_ep_read(ep, EP_AVAIL0),
- t1 & 0x0f,
- ep->is_in ? "in" : "out",
- type_string(t1 >> 5),
- ep->stopped ? "*" : "");
- size -= t;
- next += t;
-
- t = scnprintf(next, size,
- "\tep_transfer %06x\n",
- ((net2272_ep_read(ep, EP_TRANSFER2) & 0xff) << 16) |
- ((net2272_ep_read(ep, EP_TRANSFER1) & 0xff) << 8) |
- ((net2272_ep_read(ep, EP_TRANSFER0) & 0xff)));
- size -= t;
- next += t;
-
- t1 = net2272_ep_read(ep, EP_BUFF_STATES) & 0x03;
- t2 = (net2272_ep_read(ep, EP_BUFF_STATES) >> 2) & 0x03;
- t = scnprintf(next, size,
- "\tbuf-a %s buf-b %s\n",
- buf_state_string(t1),
- buf_state_string(t2));
- size -= t;
- next += t;
- }
-
- spin_unlock_irqrestore(&dev->lock, flags);
-
- return PAGE_SIZE - size;
-}
-static DEVICE_ATTR_RO(registers);
-
-/*---------------------------------------------------------------------------*/
-
-static void
-net2272_set_fifo_mode(struct net2272 *dev, int mode)
-{
- u8 tmp;
-
- tmp = net2272_read(dev, LOCCTL) & 0x3f;
- tmp |= (mode << 6);
- net2272_write(dev, LOCCTL, tmp);
-
- INIT_LIST_HEAD(&dev->gadget.ep_list);
-
- /* always ep-a, ep-c ... maybe not ep-b */
- list_add_tail(&dev->ep[1].ep.ep_list, &dev->gadget.ep_list);
-
- switch (mode) {
- case 0:
- list_add_tail(&dev->ep[2].ep.ep_list, &dev->gadget.ep_list);
- dev->ep[1].fifo_size = dev->ep[2].fifo_size = 512;
- break;
- case 1:
- list_add_tail(&dev->ep[2].ep.ep_list, &dev->gadget.ep_list);
- dev->ep[1].fifo_size = 1024;
- dev->ep[2].fifo_size = 512;
- break;
- case 2:
- list_add_tail(&dev->ep[2].ep.ep_list, &dev->gadget.ep_list);
- dev->ep[1].fifo_size = dev->ep[2].fifo_size = 1024;
- break;
- case 3:
- dev->ep[1].fifo_size = 1024;
- break;
- }
-
- /* ep-c is always 2 512 byte buffers */
- list_add_tail(&dev->ep[3].ep.ep_list, &dev->gadget.ep_list);
- dev->ep[3].fifo_size = 512;
-}
-
-/*---------------------------------------------------------------------------*/
-
-static void
-net2272_usb_reset(struct net2272 *dev)
-{
- dev->gadget.speed = USB_SPEED_UNKNOWN;
-
- net2272_cancel_dma(dev);
-
- net2272_write(dev, IRQENB0, 0);
- net2272_write(dev, IRQENB1, 0);
-
- /* clear irq state */
- net2272_write(dev, IRQSTAT0, 0xff);
- net2272_write(dev, IRQSTAT1, ~(1 << SUSPEND_REQUEST_INTERRUPT));
-
- net2272_write(dev, DMAREQ,
- (0 << DMA_BUFFER_VALID) |
- (0 << DMA_REQUEST_ENABLE) |
- (1 << DMA_CONTROL_DACK) |
- (dev->dma_eot_polarity << EOT_POLARITY) |
- (dev->dma_dack_polarity << DACK_POLARITY) |
- (dev->dma_dreq_polarity << DREQ_POLARITY) |
- ((dma_ep >> 1) << DMA_ENDPOINT_SELECT));
-
- net2272_cancel_dma(dev);
- net2272_set_fifo_mode(dev, (fifo_mode <= 3) ? fifo_mode : 0);
-
- /* Set the NET2272 ep fifo data width to 16-bit mode and for correct byte swapping
- * note that the higher level gadget drivers are expected to convert data to little endian.
- * Enable byte swap for your local bus/cpu if needed by setting BYTE_SWAP in LOCCTL here
- */
- net2272_write(dev, LOCCTL, net2272_read(dev, LOCCTL) | (1 << DATA_WIDTH));
- net2272_write(dev, LOCCTL1, (dma_mode << DMA_MODE));
-}
-
-static void
-net2272_usb_reinit(struct net2272 *dev)
-{
- int i;
-
- /* basic endpoint init */
- for (i = 0; i < 4; ++i) {
- struct net2272_ep *ep = &dev->ep[i];
-
- ep->ep.name = ep_name[i];
- ep->dev = dev;
- ep->num = i;
- ep->not_empty = 0;
-
- if (use_dma && ep->num == dma_ep)
- ep->dma = 1;
-
- if (i > 0 && i <= 3)
- ep->fifo_size = 512;
- else
- ep->fifo_size = 64;
- net2272_ep_reset(ep);
-
- if (i == 0) {
- ep->ep.caps.type_control = true;
- } else {
- ep->ep.caps.type_iso = true;
- ep->ep.caps.type_bulk = true;
- ep->ep.caps.type_int = true;
- }
-
- ep->ep.caps.dir_in = true;
- ep->ep.caps.dir_out = true;
- }
- usb_ep_set_maxpacket_limit(&dev->ep[0].ep, 64);
-
- dev->gadget.ep0 = &dev->ep[0].ep;
- dev->ep[0].stopped = 0;
- INIT_LIST_HEAD(&dev->gadget.ep0->ep_list);
-}
-
-static void
-net2272_ep0_start(struct net2272 *dev)
-{
- struct net2272_ep *ep0 = &dev->ep[0];
-
- net2272_ep_write(ep0, EP_RSPSET,
- (1 << NAK_OUT_PACKETS_MODE) |
- (1 << ALT_NAK_OUT_PACKETS));
- net2272_ep_write(ep0, EP_RSPCLR,
- (1 << HIDE_STATUS_PHASE) |
- (1 << CONTROL_STATUS_PHASE_HANDSHAKE));
- net2272_write(dev, USBCTL0,
- (dev->softconnect << USB_DETECT_ENABLE) |
- (1 << USB_ROOT_PORT_WAKEUP_ENABLE) |
- (1 << IO_WAKEUP_ENABLE));
- net2272_write(dev, IRQENB0,
- (1 << SETUP_PACKET_INTERRUPT_ENABLE) |
- (1 << ENDPOINT_0_INTERRUPT_ENABLE) |
- (1 << DMA_DONE_INTERRUPT_ENABLE));
- net2272_write(dev, IRQENB1,
- (1 << VBUS_INTERRUPT_ENABLE) |
- (1 << ROOT_PORT_RESET_INTERRUPT_ENABLE) |
- (1 << SUSPEND_REQUEST_CHANGE_INTERRUPT_ENABLE));
-}
-
-/* when a driver is successfully registered, it will receive
- * control requests including set_configuration(), which enables
- * non-control requests. then usb traffic follows until a
- * disconnect is reported. then a host may connect again, or
- * the driver might get unbound.
- */
-static int net2272_start(struct usb_gadget *_gadget,
- struct usb_gadget_driver *driver)
-{
- struct net2272 *dev;
- unsigned i;
-
- if (!driver || !driver->setup ||
- driver->max_speed != USB_SPEED_HIGH)
- return -EINVAL;
-
- dev = container_of(_gadget, struct net2272, gadget);
-
- for (i = 0; i < 4; ++i)
- dev->ep[i].irqs = 0;
- /* hook up the driver ... */
- dev->softconnect = 1;
- dev->driver = driver;
-
- /* ... then enable host detection and ep0; and we're ready
- * for set_configuration as well as eventual disconnect.
- */
- net2272_ep0_start(dev);
-
- return 0;
-}
-
-static void
-stop_activity(struct net2272 *dev, struct usb_gadget_driver *driver)
-{
- int i;
-
- /* don't disconnect if it's not connected */
- if (dev->gadget.speed == USB_SPEED_UNKNOWN)
- driver = NULL;
-
- /* stop hardware; prevent new request submissions;
- * and kill any outstanding requests.
- */
- net2272_usb_reset(dev);
- for (i = 0; i < 4; ++i)
- net2272_dequeue_all(&dev->ep[i]);
-
- /* report disconnect; the driver is already quiesced */
- if (dev->async_callbacks && driver) {
- spin_unlock(&dev->lock);
- driver->disconnect(&dev->gadget);
- spin_lock(&dev->lock);
- }
-
- net2272_usb_reinit(dev);
-}
-
-static int net2272_stop(struct usb_gadget *_gadget)
-{
- struct net2272 *dev;
- unsigned long flags;
-
- dev = container_of(_gadget, struct net2272, gadget);
-
- spin_lock_irqsave(&dev->lock, flags);
- stop_activity(dev, NULL);
- spin_unlock_irqrestore(&dev->lock, flags);
-
- dev->driver = NULL;
-
- return 0;
-}
-
-static void net2272_async_callbacks(struct usb_gadget *_gadget, bool enable)
-{
- struct net2272 *dev = container_of(_gadget, struct net2272, gadget);
-
- spin_lock_irq(&dev->lock);
- dev->async_callbacks = enable;
- spin_unlock_irq(&dev->lock);
-}
-
-/*---------------------------------------------------------------------------*/
-/* handle ep-a/ep-b dma completions */
-static void
-net2272_handle_dma(struct net2272_ep *ep)
-{
- struct net2272_request *req;
- unsigned len;
- int status;
-
- if (!list_empty(&ep->queue))
- req = list_entry(ep->queue.next,
- struct net2272_request, queue);
- else
- req = NULL;
-
- dev_vdbg(ep->dev->dev, "handle_dma %s req %p\n", ep->ep.name, req);
-
- /* Ensure DREQ is de-asserted */
- net2272_write(ep->dev, DMAREQ,
- (0 << DMA_BUFFER_VALID)
- | (0 << DMA_REQUEST_ENABLE)
- | (1 << DMA_CONTROL_DACK)
- | (ep->dev->dma_eot_polarity << EOT_POLARITY)
- | (ep->dev->dma_dack_polarity << DACK_POLARITY)
- | (ep->dev->dma_dreq_polarity << DREQ_POLARITY)
- | (ep->dma << DMA_ENDPOINT_SELECT));
-
- ep->dev->dma_busy = 0;
-
- net2272_ep_write(ep, EP_IRQENB,
- (1 << DATA_PACKET_RECEIVED_INTERRUPT_ENABLE)
- | (1 << DATA_PACKET_TRANSMITTED_INTERRUPT_ENABLE)
- | net2272_ep_read(ep, EP_IRQENB));
-
- /* device-to-host transfer completed */
- if (ep->is_in) {
- /* validate a short packet or zlp if necessary */
- if ((req->req.length % ep->ep.maxpacket != 0) ||
- req->req.zero)
- set_fifo_bytecount(ep, 0);
-
- net2272_done(ep, req, 0);
- if (!list_empty(&ep->queue)) {
- req = list_entry(ep->queue.next,
- struct net2272_request, queue);
- status = net2272_kick_dma(ep, req);
- if (status < 0)
- net2272_pio_advance(ep);
- }
-
- /* host-to-device transfer completed */
- } else {
- /* terminated with a short packet? */
- if (net2272_read(ep->dev, IRQSTAT0) &
- (1 << DMA_DONE_INTERRUPT)) {
- /* abort system dma */
- net2272_cancel_dma(ep->dev);
- }
-
- /* EP_TRANSFER will contain the number of bytes
- * actually received.
- * NOTE: There is no overflow detection on EP_TRANSFER:
- * We can't deal with transfers larger than 2^24 bytes!
- */
- len = (net2272_ep_read(ep, EP_TRANSFER2) << 16)
- | (net2272_ep_read(ep, EP_TRANSFER1) << 8)
- | (net2272_ep_read(ep, EP_TRANSFER0));
-
- if (ep->not_empty)
- len += 4;
-
- req->req.actual += len;
-
- /* get any remaining data */
- net2272_pio_advance(ep);
- }
-}
-
-/*---------------------------------------------------------------------------*/
-
-static void
-net2272_handle_ep(struct net2272_ep *ep)
-{
- struct net2272_request *req;
- u8 stat0, stat1;
-
- if (!list_empty(&ep->queue))
- req = list_entry(ep->queue.next,
- struct net2272_request, queue);
- else
- req = NULL;
-
- /* ack all, and handle what we care about */
- stat0 = net2272_ep_read(ep, EP_STAT0);
- stat1 = net2272_ep_read(ep, EP_STAT1);
- ep->irqs++;
-
- dev_vdbg(ep->dev->dev, "%s ack ep_stat0 %02x, ep_stat1 %02x, req %p\n",
- ep->ep.name, stat0, stat1, req ? &req->req : NULL);
-
- net2272_ep_write(ep, EP_STAT0, stat0 &
- ~((1 << NAK_OUT_PACKETS)
- | (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT)));
- net2272_ep_write(ep, EP_STAT1, stat1);
-
- /* data packet(s) received (in the fifo, OUT)
- * direction must be validated, otherwise control read status phase
- * could be interpreted as a valid packet
- */
- if (!ep->is_in && (stat0 & (1 << DATA_PACKET_RECEIVED_INTERRUPT)))
- net2272_pio_advance(ep);
- /* data packet(s) transmitted (IN) */
- else if (stat0 & (1 << DATA_PACKET_TRANSMITTED_INTERRUPT))
- net2272_pio_advance(ep);
-}
-
-static struct net2272_ep *
-net2272_get_ep_by_addr(struct net2272 *dev, u16 wIndex)
-{
- struct net2272_ep *ep;
-
- if ((wIndex & USB_ENDPOINT_NUMBER_MASK) == 0)
- return &dev->ep[0];
-
- list_for_each_entry(ep, &dev->gadget.ep_list, ep.ep_list) {
- u8 bEndpointAddress;
-
- if (!ep->desc)
- continue;
- bEndpointAddress = ep->desc->bEndpointAddress;
- if ((wIndex ^ bEndpointAddress) & USB_DIR_IN)
- continue;
- if ((wIndex & 0x0f) == (bEndpointAddress & 0x0f))
- return ep;
- }
- return NULL;
-}
-
-/*
- * USB Test Packet:
- * JKJKJKJK * 9
- * JJKKJJKK * 8
- * JJJJKKKK * 8
- * JJJJJJJKKKKKKK * 8
- * JJJJJJJK * 8
- * {JKKKKKKK * 10}, JK
- */
-static const u8 net2272_test_packet[] = {
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA,
- 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE, 0xEE,
- 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
- 0x7F, 0xBF, 0xDF, 0xEF, 0xF7, 0xFB, 0xFD,
- 0xFC, 0x7E, 0xBF, 0xDF, 0xEF, 0xF7, 0xFD, 0x7E
-};
-
-static void
-net2272_set_test_mode(struct net2272 *dev, int mode)
-{
- int i;
-
- /* Disable all net2272 interrupts:
- * Nothing but a power cycle should stop the test.
- */
- net2272_write(dev, IRQENB0, 0x00);
- net2272_write(dev, IRQENB1, 0x00);
-
- /* Force tranceiver to high-speed */
- net2272_write(dev, XCVRDIAG, 1 << FORCE_HIGH_SPEED);
-
- net2272_write(dev, PAGESEL, 0);
- net2272_write(dev, EP_STAT0, 1 << DATA_PACKET_TRANSMITTED_INTERRUPT);
- net2272_write(dev, EP_RSPCLR,
- (1 << CONTROL_STATUS_PHASE_HANDSHAKE)
- | (1 << HIDE_STATUS_PHASE));
- net2272_write(dev, EP_CFG, 1 << ENDPOINT_DIRECTION);
- net2272_write(dev, EP_STAT1, 1 << BUFFER_FLUSH);
-
- /* wait for status phase to complete */
- while (!(net2272_read(dev, EP_STAT0) &
- (1 << DATA_PACKET_TRANSMITTED_INTERRUPT)))
- ;
-
- /* Enable test mode */
- net2272_write(dev, USBTEST, mode);
-
- /* load test packet */
- if (mode == USB_TEST_PACKET) {
- /* switch to 8 bit mode */
- net2272_write(dev, LOCCTL, net2272_read(dev, LOCCTL) &
- ~(1 << DATA_WIDTH));
-
- for (i = 0; i < sizeof(net2272_test_packet); ++i)
- net2272_write(dev, EP_DATA, net2272_test_packet[i]);
-
- /* Validate test packet */
- net2272_write(dev, EP_TRANSFER0, 0);
- }
-}
-
-static void
-net2272_handle_stat0_irqs(struct net2272 *dev, u8 stat)
-{
- struct net2272_ep *ep;
- u8 num, scratch;
-
- /* starting a control request? */
- if (unlikely(stat & (1 << SETUP_PACKET_INTERRUPT))) {
- union {
- u8 raw[8];
- struct usb_ctrlrequest r;
- } u;
- int tmp = 0;
- struct net2272_request *req;
-
- if (dev->gadget.speed == USB_SPEED_UNKNOWN) {
- if (net2272_read(dev, USBCTL1) & (1 << USB_HIGH_SPEED))
- dev->gadget.speed = USB_SPEED_HIGH;
- else
- dev->gadget.speed = USB_SPEED_FULL;
- dev_dbg(dev->dev, "%s\n",
- usb_speed_string(dev->gadget.speed));
- }
-
- ep = &dev->ep[0];
- ep->irqs++;
-
- /* make sure any leftover interrupt state is cleared */
- stat &= ~(1 << ENDPOINT_0_INTERRUPT);
- while (!list_empty(&ep->queue)) {
- req = list_entry(ep->queue.next,
- struct net2272_request, queue);
- net2272_done(ep, req,
- (req->req.actual == req->req.length) ? 0 : -EPROTO);
- }
- ep->stopped = 0;
- dev->protocol_stall = 0;
- net2272_ep_write(ep, EP_STAT0,
- (1 << DATA_IN_TOKEN_INTERRUPT)
- | (1 << DATA_OUT_TOKEN_INTERRUPT)
- | (1 << DATA_PACKET_TRANSMITTED_INTERRUPT)
- | (1 << DATA_PACKET_RECEIVED_INTERRUPT)
- | (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT));
- net2272_ep_write(ep, EP_STAT1,
- (1 << TIMEOUT)
- | (1 << USB_OUT_ACK_SENT)
- | (1 << USB_OUT_NAK_SENT)
- | (1 << USB_IN_ACK_RCVD)
- | (1 << USB_IN_NAK_SENT)
- | (1 << USB_STALL_SENT)
- | (1 << LOCAL_OUT_ZLP));
-
- /*
- * Ensure Control Read pre-validation setting is beyond maximum size
- * - Control Writes can leave non-zero values in EP_TRANSFER. If
- * an EP0 transfer following the Control Write is a Control Read,
- * the NET2272 sees the non-zero EP_TRANSFER as an unexpected
- * pre-validation count.
- * - Setting EP_TRANSFER beyond the maximum EP0 transfer size ensures
- * the pre-validation count cannot cause an unexpected validatation
- */
- net2272_write(dev, PAGESEL, 0);
- net2272_write(dev, EP_TRANSFER2, 0xff);
- net2272_write(dev, EP_TRANSFER1, 0xff);
- net2272_write(dev, EP_TRANSFER0, 0xff);
-
- u.raw[0] = net2272_read(dev, SETUP0);
- u.raw[1] = net2272_read(dev, SETUP1);
- u.raw[2] = net2272_read(dev, SETUP2);
- u.raw[3] = net2272_read(dev, SETUP3);
- u.raw[4] = net2272_read(dev, SETUP4);
- u.raw[5] = net2272_read(dev, SETUP5);
- u.raw[6] = net2272_read(dev, SETUP6);
- u.raw[7] = net2272_read(dev, SETUP7);
- /*
- * If you have a big endian cpu make sure le16_to_cpus
- * performs the proper byte swapping here...
- */
- le16_to_cpus(&u.r.wValue);
- le16_to_cpus(&u.r.wIndex);
- le16_to_cpus(&u.r.wLength);
-
- /* ack the irq */
- net2272_write(dev, IRQSTAT0, 1 << SETUP_PACKET_INTERRUPT);
- stat ^= (1 << SETUP_PACKET_INTERRUPT);
-
- /* watch control traffic at the token level, and force
- * synchronization before letting the status phase happen.
- */
- ep->is_in = (u.r.bRequestType & USB_DIR_IN) != 0;
- if (ep->is_in) {
- scratch = (1 << DATA_PACKET_TRANSMITTED_INTERRUPT_ENABLE)
- | (1 << DATA_OUT_TOKEN_INTERRUPT_ENABLE)
- | (1 << DATA_IN_TOKEN_INTERRUPT_ENABLE);
- stop_out_naking(ep);
- } else
- scratch = (1 << DATA_PACKET_RECEIVED_INTERRUPT_ENABLE)
- | (1 << DATA_OUT_TOKEN_INTERRUPT_ENABLE)
- | (1 << DATA_IN_TOKEN_INTERRUPT_ENABLE);
- net2272_ep_write(ep, EP_IRQENB, scratch);
-
- if ((u.r.bRequestType & USB_TYPE_MASK) != USB_TYPE_STANDARD)
- goto delegate;
- switch (u.r.bRequest) {
- case USB_REQ_GET_STATUS: {
- struct net2272_ep *e;
- u16 status = 0;
-
- switch (u.r.bRequestType & USB_RECIP_MASK) {
- case USB_RECIP_ENDPOINT:
- e = net2272_get_ep_by_addr(dev, u.r.wIndex);
- if (!e || u.r.wLength > 2)
- goto do_stall;
- if (net2272_ep_read(e, EP_RSPSET) & (1 << ENDPOINT_HALT))
- status = cpu_to_le16(1);
- else
- status = cpu_to_le16(0);
-
- /* don't bother with a request object! */
- net2272_ep_write(&dev->ep[0], EP_IRQENB, 0);
- writew(status, net2272_reg_addr(dev, EP_DATA));
- set_fifo_bytecount(&dev->ep[0], 0);
- allow_status(ep);
- dev_vdbg(dev->dev, "%s stat %02x\n",
- ep->ep.name, status);
- goto next_endpoints;
- case USB_RECIP_DEVICE:
- if (u.r.wLength > 2)
- goto do_stall;
- if (dev->gadget.is_selfpowered)
- status = (1 << USB_DEVICE_SELF_POWERED);
-
- /* don't bother with a request object! */
- net2272_ep_write(&dev->ep[0], EP_IRQENB, 0);
- writew(status, net2272_reg_addr(dev, EP_DATA));
- set_fifo_bytecount(&dev->ep[0], 0);
- allow_status(ep);
- dev_vdbg(dev->dev, "device stat %02x\n", status);
- goto next_endpoints;
- case USB_RECIP_INTERFACE:
- if (u.r.wLength > 2)
- goto do_stall;
-
- /* don't bother with a request object! */
- net2272_ep_write(&dev->ep[0], EP_IRQENB, 0);
- writew(status, net2272_reg_addr(dev, EP_DATA));
- set_fifo_bytecount(&dev->ep[0], 0);
- allow_status(ep);
- dev_vdbg(dev->dev, "interface status %02x\n", status);
- goto next_endpoints;
- }
-
- break;
- }
- case USB_REQ_CLEAR_FEATURE: {
- struct net2272_ep *e;
-
- if (u.r.bRequestType != USB_RECIP_ENDPOINT)
- goto delegate;
- if (u.r.wValue != USB_ENDPOINT_HALT ||
- u.r.wLength != 0)
- goto do_stall;
- e = net2272_get_ep_by_addr(dev, u.r.wIndex);
- if (!e)
- goto do_stall;
- if (e->wedged) {
- dev_vdbg(dev->dev, "%s wedged, halt not cleared\n",
- ep->ep.name);
- } else {
- dev_vdbg(dev->dev, "%s clear halt\n", ep->ep.name);
- clear_halt(e);
- }
- allow_status(ep);
- goto next_endpoints;
- }
- case USB_REQ_SET_FEATURE: {
- struct net2272_ep *e;
-
- if (u.r.bRequestType == USB_RECIP_DEVICE) {
- if (u.r.wIndex != NORMAL_OPERATION)
- net2272_set_test_mode(dev, (u.r.wIndex >> 8));
- allow_status(ep);
- dev_vdbg(dev->dev, "test mode: %d\n", u.r.wIndex);
- goto next_endpoints;
- } else if (u.r.bRequestType != USB_RECIP_ENDPOINT)
- goto delegate;
- if (u.r.wValue != USB_ENDPOINT_HALT ||
- u.r.wLength != 0)
- goto do_stall;
- e = net2272_get_ep_by_addr(dev, u.r.wIndex);
- if (!e)
- goto do_stall;
- set_halt(e);
- allow_status(ep);
- dev_vdbg(dev->dev, "%s set halt\n", ep->ep.name);
- goto next_endpoints;
- }
- case USB_REQ_SET_ADDRESS: {
- net2272_write(dev, OURADDR, u.r.wValue & 0xff);
- allow_status(ep);
- break;
- }
- default:
- delegate:
- dev_vdbg(dev->dev, "setup %02x.%02x v%04x i%04x "
- "ep_cfg %08x\n",
- u.r.bRequestType, u.r.bRequest,
- u.r.wValue, u.r.wIndex,
- net2272_ep_read(ep, EP_CFG));
- if (dev->async_callbacks) {
- spin_unlock(&dev->lock);
- tmp = dev->driver->setup(&dev->gadget, &u.r);
- spin_lock(&dev->lock);
- }
- }
-
- /* stall ep0 on error */
- if (tmp < 0) {
- do_stall:
- dev_vdbg(dev->dev, "req %02x.%02x protocol STALL; stat %d\n",
- u.r.bRequestType, u.r.bRequest, tmp);
- dev->protocol_stall = 1;
- }
- /* endpoint dma irq? */
- } else if (stat & (1 << DMA_DONE_INTERRUPT)) {
- net2272_cancel_dma(dev);
- net2272_write(dev, IRQSTAT0, 1 << DMA_DONE_INTERRUPT);
- stat &= ~(1 << DMA_DONE_INTERRUPT);
- num = (net2272_read(dev, DMAREQ) & (1 << DMA_ENDPOINT_SELECT))
- ? 2 : 1;
-
- ep = &dev->ep[num];
- net2272_handle_dma(ep);
- }
-
- next_endpoints:
- /* endpoint data irq? */
- scratch = stat & 0x0f;
- stat &= ~0x0f;
- for (num = 0; scratch; num++) {
- u8 t;
-
- /* does this endpoint's FIFO and queue need tending? */
- t = 1 << num;
- if ((scratch & t) == 0)
- continue;
- scratch ^= t;
-
- ep = &dev->ep[num];
- net2272_handle_ep(ep);
- }
-
- /* some interrupts we can just ignore */
- stat &= ~(1 << SOF_INTERRUPT);
-
- if (stat)
- dev_dbg(dev->dev, "unhandled irqstat0 %02x\n", stat);
-}
-
-static void
-net2272_handle_stat1_irqs(struct net2272 *dev, u8 stat)
-{
- u8 tmp, mask;
-
- /* after disconnect there's nothing else to do! */
- tmp = (1 << VBUS_INTERRUPT) | (1 << ROOT_PORT_RESET_INTERRUPT);
- mask = (1 << USB_HIGH_SPEED) | (1 << USB_FULL_SPEED);
-
- if (stat & tmp) {
- bool reset = false;
- bool disconnect = false;
-
- /*
- * Ignore disconnects and resets if the speed hasn't been set.
- * VBUS can bounce and there's always an initial reset.
- */
- net2272_write(dev, IRQSTAT1, tmp);
- if (dev->gadget.speed != USB_SPEED_UNKNOWN) {
- if ((stat & (1 << VBUS_INTERRUPT)) &&
- (net2272_read(dev, USBCTL1) &
- (1 << VBUS_PIN)) == 0) {
- disconnect = true;
- dev_dbg(dev->dev, "disconnect %s\n",
- dev->driver->driver.name);
- } else if ((stat & (1 << ROOT_PORT_RESET_INTERRUPT)) &&
- (net2272_read(dev, USBCTL1) & mask)
- == 0) {
- reset = true;
- dev_dbg(dev->dev, "reset %s\n",
- dev->driver->driver.name);
- }
-
- if (disconnect || reset) {
- stop_activity(dev, dev->driver);
- net2272_ep0_start(dev);
- if (dev->async_callbacks) {
- spin_unlock(&dev->lock);
- if (reset)
- usb_gadget_udc_reset(&dev->gadget, dev->driver);
- else
- (dev->driver->disconnect)(&dev->gadget);
- spin_lock(&dev->lock);
- }
- return;
- }
- }
- stat &= ~tmp;
-
- if (!stat)
- return;
- }
-
- tmp = (1 << SUSPEND_REQUEST_CHANGE_INTERRUPT);
- if (stat & tmp) {
- net2272_write(dev, IRQSTAT1, tmp);
- if (stat & (1 << SUSPEND_REQUEST_INTERRUPT)) {
- if (dev->async_callbacks && dev->driver->suspend)
- dev->driver->suspend(&dev->gadget);
- if (!enable_suspend) {
- stat &= ~(1 << SUSPEND_REQUEST_INTERRUPT);
- dev_dbg(dev->dev, "Suspend disabled, ignoring\n");
- }
- } else {
- if (dev->async_callbacks && dev->driver->resume)
- dev->driver->resume(&dev->gadget);
- }
- stat &= ~tmp;
- }
-
- /* clear any other status/irqs */
- if (stat)
- net2272_write(dev, IRQSTAT1, stat);
-
- /* some status we can just ignore */
- stat &= ~((1 << CONTROL_STATUS_INTERRUPT)
- | (1 << SUSPEND_REQUEST_INTERRUPT)
- | (1 << RESUME_INTERRUPT));
- if (!stat)
- return;
- else
- dev_dbg(dev->dev, "unhandled irqstat1 %02x\n", stat);
-}
-
-static irqreturn_t net2272_irq(int irq, void *_dev)
-{
- struct net2272 *dev = _dev;
-#if defined(PLX_PCI_RDK) || defined(PLX_PCI_RDK2)
- u32 intcsr;
-#endif
-#if defined(PLX_PCI_RDK)
- u8 dmareq;
-#endif
- spin_lock(&dev->lock);
-#if defined(PLX_PCI_RDK)
- intcsr = readl(dev->rdk1.plx9054_base_addr + INTCSR);
-
- if ((intcsr & LOCAL_INTERRUPT_TEST) == LOCAL_INTERRUPT_TEST) {
- writel(intcsr & ~(1 << PCI_INTERRUPT_ENABLE),
- dev->rdk1.plx9054_base_addr + INTCSR);
- net2272_handle_stat1_irqs(dev, net2272_read(dev, IRQSTAT1));
- net2272_handle_stat0_irqs(dev, net2272_read(dev, IRQSTAT0));
- intcsr = readl(dev->rdk1.plx9054_base_addr + INTCSR);
- writel(intcsr | (1 << PCI_INTERRUPT_ENABLE),
- dev->rdk1.plx9054_base_addr + INTCSR);
- }
- if ((intcsr & DMA_CHANNEL_0_TEST) == DMA_CHANNEL_0_TEST) {
- writeb((1 << CHANNEL_CLEAR_INTERRUPT | (0 << CHANNEL_ENABLE)),
- dev->rdk1.plx9054_base_addr + DMACSR0);
-
- dmareq = net2272_read(dev, DMAREQ);
- if (dmareq & 0x01)
- net2272_handle_dma(&dev->ep[2]);
- else
- net2272_handle_dma(&dev->ep[1]);
- }
-#endif
-#if defined(PLX_PCI_RDK2)
- /* see if PCI int for us by checking irqstat */
- intcsr = readl(dev->rdk2.fpga_base_addr + RDK2_IRQSTAT);
- if (!(intcsr & (1 << NET2272_PCI_IRQ))) {
- spin_unlock(&dev->lock);
- return IRQ_NONE;
- }
- /* check dma interrupts */
-#endif
- /* Platform/device interrupt handler */
-#if !defined(PLX_PCI_RDK)
- net2272_handle_stat1_irqs(dev, net2272_read(dev, IRQSTAT1));
- net2272_handle_stat0_irqs(dev, net2272_read(dev, IRQSTAT0));
-#endif
- spin_unlock(&dev->lock);
-
- return IRQ_HANDLED;
-}
-
-static int net2272_present(struct net2272 *dev)
-{
- /*
- * Quick test to see if CPU can communicate properly with the NET2272.
- * Verifies connection using writes and reads to write/read and
- * read-only registers.
- *
- * This routine is strongly recommended especially during early bring-up
- * of new hardware, however for designs that do not apply Power On System
- * Tests (POST) it may discarded (or perhaps minimized).
- */
- unsigned int ii;
- u8 val, refval;
-
- /* Verify NET2272 write/read SCRATCH register can write and read */
- refval = net2272_read(dev, SCRATCH);
- for (ii = 0; ii < 0x100; ii += 7) {
- net2272_write(dev, SCRATCH, ii);
- val = net2272_read(dev, SCRATCH);
- if (val != ii) {
- dev_dbg(dev->dev,
- "%s: write/read SCRATCH register test failed: "
- "wrote:0x%2.2x, read:0x%2.2x\n",
- __func__, ii, val);
- return -EINVAL;
- }
- }
- /* To be nice, we write the original SCRATCH value back: */
- net2272_write(dev, SCRATCH, refval);
-
- /* Verify NET2272 CHIPREV register is read-only: */
- refval = net2272_read(dev, CHIPREV_2272);
- for (ii = 0; ii < 0x100; ii += 7) {
- net2272_write(dev, CHIPREV_2272, ii);
- val = net2272_read(dev, CHIPREV_2272);
- if (val != refval) {
- dev_dbg(dev->dev,
- "%s: write/read CHIPREV register test failed: "
- "wrote 0x%2.2x, read:0x%2.2x expected:0x%2.2x\n",
- __func__, ii, val, refval);
- return -EINVAL;
- }
- }
-
- /*
- * Verify NET2272's "NET2270 legacy revision" register
- * - NET2272 has two revision registers. The NET2270 legacy revision
- * register should read the same value, regardless of the NET2272
- * silicon revision. The legacy register applies to NET2270
- * firmware being applied to the NET2272.
- */
- val = net2272_read(dev, CHIPREV_LEGACY);
- if (val != NET2270_LEGACY_REV) {
- /*
- * Unexpected legacy revision value
- * - Perhaps the chip is a NET2270?
- */
- dev_dbg(dev->dev,
- "%s: WARNING: UNEXPECTED NET2272 LEGACY REGISTER VALUE:\n"
- " - CHIPREV_LEGACY: expected 0x%2.2x, got:0x%2.2x. (Not NET2272?)\n",
- __func__, NET2270_LEGACY_REV, val);
- return -EINVAL;
- }
-
- /*
- * Verify NET2272 silicon revision
- * - This revision register is appropriate for the silicon version
- * of the NET2272
- */
- val = net2272_read(dev, CHIPREV_2272);
- switch (val) {
- case CHIPREV_NET2272_R1:
- /*
- * NET2272 Rev 1 has DMA related errata:
- * - Newer silicon (Rev 1A or better) required
- */
- dev_dbg(dev->dev,
- "%s: Rev 1 detected: newer silicon recommended for DMA support\n",
- __func__);
- break;
- case CHIPREV_NET2272_R1A:
- break;
- default:
- /* NET2272 silicon version *may* not work with this firmware */
- dev_dbg(dev->dev,
- "%s: unexpected silicon revision register value: "
- " CHIPREV_2272: 0x%2.2x\n",
- __func__, val);
- /*
- * Return Success, even though the chip rev is not an expected value
- * - Older, pre-built firmware can attempt to operate on newer silicon
- * - Often, new silicon is perfectly compatible
- */
- }
-
- /* Success: NET2272 checks out OK */
- return 0;
-}
-
-static void
-net2272_gadget_release(struct device *_dev)
-{
- struct net2272 *dev = container_of(_dev, struct net2272, gadget.dev);
-
- kfree(dev);
-}
-
-/*---------------------------------------------------------------------------*/
-
-static void
-net2272_remove(struct net2272 *dev)
-{
- if (dev->added)
- usb_del_gadget(&dev->gadget);
- free_irq(dev->irq, dev);
- iounmap(dev->base_addr);
- device_remove_file(dev->dev, &dev_attr_registers);
-
- dev_info(dev->dev, "unbind\n");
-}
-
-static struct net2272 *net2272_probe_init(struct device *dev, unsigned int irq)
-{
- struct net2272 *ret;
-
- if (!irq) {
- dev_dbg(dev, "No IRQ!\n");
- return ERR_PTR(-ENODEV);
- }
-
- /* alloc, and start init */
- ret = kzalloc(sizeof(*ret), GFP_KERNEL);
- if (!ret)
- return ERR_PTR(-ENOMEM);
-
- spin_lock_init(&ret->lock);
- ret->irq = irq;
- ret->dev = dev;
- ret->gadget.ops = &net2272_ops;
- ret->gadget.max_speed = USB_SPEED_HIGH;
-
- /* the "gadget" abstracts/virtualizes the controller */
- ret->gadget.name = driver_name;
- usb_initialize_gadget(dev, &ret->gadget, net2272_gadget_release);
-
- return ret;
-}
-
-static int
-net2272_probe_fin(struct net2272 *dev, unsigned int irqflags)
-{
- int ret;
-
- /* See if there... */
- if (net2272_present(dev)) {
- dev_warn(dev->dev, "2272 not found!\n");
- ret = -ENODEV;
- goto err;
- }
-
- net2272_usb_reset(dev);
- net2272_usb_reinit(dev);
-
- ret = request_irq(dev->irq, net2272_irq, irqflags, driver_name, dev);
- if (ret) {
- dev_err(dev->dev, "request interrupt %i failed\n", dev->irq);
- goto err;
- }
-
- dev->chiprev = net2272_read(dev, CHIPREV_2272);
-
- /* done */
- dev_info(dev->dev, "%s\n", driver_desc);
- dev_info(dev->dev, "irq %i, mem %p, chip rev %04x, dma %s\n",
- dev->irq, dev->base_addr, dev->chiprev,
- dma_mode_string());
- dev_info(dev->dev, "version: %s\n", driver_vers);
-
- ret = device_create_file(dev->dev, &dev_attr_registers);
- if (ret)
- goto err_irq;
-
- ret = usb_add_gadget(&dev->gadget);
- if (ret)
- goto err_add_udc;
- dev->added = 1;
-
- return 0;
-
-err_add_udc:
- device_remove_file(dev->dev, &dev_attr_registers);
- err_irq:
- free_irq(dev->irq, dev);
- err:
- return ret;
-}
-
-#ifdef CONFIG_USB_PCI
-
-/*
- * wrap this driver around the specified device, but
- * don't respond over USB until a gadget driver binds to us
- */
-
-static int
-net2272_rdk1_probe(struct pci_dev *pdev, struct net2272 *dev)
-{
- unsigned long resource, len, tmp;
- void __iomem *mem_mapped_addr[4];
- int ret, i;
-
- /*
- * BAR 0 holds PLX 9054 config registers
- * BAR 1 is i/o memory; unused here
- * BAR 2 holds EPLD config registers
- * BAR 3 holds NET2272 registers
- */
-
- /* Find and map all address spaces */
- for (i = 0; i < 4; ++i) {
- if (i == 1)
- continue; /* BAR1 unused */
-
- resource = pci_resource_start(pdev, i);
- len = pci_resource_len(pdev, i);
-
- if (!request_mem_region(resource, len, driver_name)) {
- dev_dbg(dev->dev, "controller already in use\n");
- ret = -EBUSY;
- goto err;
- }
-
- mem_mapped_addr[i] = ioremap(resource, len);
- if (mem_mapped_addr[i] == NULL) {
- release_mem_region(resource, len);
- dev_dbg(dev->dev, "can't map memory\n");
- ret = -EFAULT;
- goto err;
- }
- }
-
- dev->rdk1.plx9054_base_addr = mem_mapped_addr[0];
- dev->rdk1.epld_base_addr = mem_mapped_addr[2];
- dev->base_addr = mem_mapped_addr[3];
-
- /* Set PLX 9054 bus width (16 bits) */
- tmp = readl(dev->rdk1.plx9054_base_addr + LBRD1);
- writel((tmp & ~(3 << MEMORY_SPACE_LOCAL_BUS_WIDTH)) | W16_BIT,
- dev->rdk1.plx9054_base_addr + LBRD1);
-
- /* Enable PLX 9054 Interrupts */
- writel(readl(dev->rdk1.plx9054_base_addr + INTCSR) |
- (1 << PCI_INTERRUPT_ENABLE) |
- (1 << LOCAL_INTERRUPT_INPUT_ENABLE),
- dev->rdk1.plx9054_base_addr + INTCSR);
-
- writeb((1 << CHANNEL_CLEAR_INTERRUPT | (0 << CHANNEL_ENABLE)),
- dev->rdk1.plx9054_base_addr + DMACSR0);
-
- /* reset */
- writeb((1 << EPLD_DMA_ENABLE) |
- (1 << DMA_CTL_DACK) |
- (1 << DMA_TIMEOUT_ENABLE) |
- (1 << USER) |
- (0 << MPX_MODE) |
- (1 << BUSWIDTH) |
- (1 << NET2272_RESET),
- dev->base_addr + EPLD_IO_CONTROL_REGISTER);
-
- mb();
- writeb(readb(dev->base_addr + EPLD_IO_CONTROL_REGISTER) &
- ~(1 << NET2272_RESET),
- dev->base_addr + EPLD_IO_CONTROL_REGISTER);
- udelay(200);
-
- return 0;
-
- err:
- while (--i >= 0) {
- if (i == 1)
- continue; /* BAR1 unused */
- iounmap(mem_mapped_addr[i]);
- release_mem_region(pci_resource_start(pdev, i),
- pci_resource_len(pdev, i));
- }
-
- return ret;
-}
-
-static int
-net2272_rdk2_probe(struct pci_dev *pdev, struct net2272 *dev)
-{
- unsigned long resource, len;
- void __iomem *mem_mapped_addr[2];
- int ret, i;
-
- /*
- * BAR 0 holds FGPA config registers
- * BAR 1 holds NET2272 registers
- */
-
- /* Find and map all address spaces, bar2-3 unused in rdk 2 */
- for (i = 0; i < 2; ++i) {
- resource = pci_resource_start(pdev, i);
- len = pci_resource_len(pdev, i);
-
- if (!request_mem_region(resource, len, driver_name)) {
- dev_dbg(dev->dev, "controller already in use\n");
- ret = -EBUSY;
- goto err;
- }
-
- mem_mapped_addr[i] = ioremap(resource, len);
- if (mem_mapped_addr[i] == NULL) {
- release_mem_region(resource, len);
- dev_dbg(dev->dev, "can't map memory\n");
- ret = -EFAULT;
- goto err;
- }
- }
-
- dev->rdk2.fpga_base_addr = mem_mapped_addr[0];
- dev->base_addr = mem_mapped_addr[1];
-
- mb();
- /* Set 2272 bus width (16 bits) and reset */
- writel((1 << CHIP_RESET), dev->rdk2.fpga_base_addr + RDK2_LOCCTLRDK);
- udelay(200);
- writel((1 << BUS_WIDTH), dev->rdk2.fpga_base_addr + RDK2_LOCCTLRDK);
- /* Print fpga version number */
- dev_info(dev->dev, "RDK2 FPGA version %08x\n",
- readl(dev->rdk2.fpga_base_addr + RDK2_FPGAREV));
- /* Enable FPGA Interrupts */
- writel((1 << NET2272_PCI_IRQ), dev->rdk2.fpga_base_addr + RDK2_IRQENB);
-
- return 0;
-
- err:
- while (--i >= 0) {
- iounmap(mem_mapped_addr[i]);
- release_mem_region(pci_resource_start(pdev, i),
- pci_resource_len(pdev, i));
- }
-
- return ret;
-}
-
-static int
-net2272_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
-{
- struct net2272 *dev;
- int ret;
-
- dev = net2272_probe_init(&pdev->dev, pdev->irq);
- if (IS_ERR(dev))
- return PTR_ERR(dev);
- dev->dev_id = pdev->device;
-
- if (pci_enable_device(pdev) < 0) {
- ret = -ENODEV;
- goto err_put;
- }
-
- pci_set_master(pdev);
-
- switch (pdev->device) {
- case PCI_DEVICE_ID_RDK1: ret = net2272_rdk1_probe(pdev, dev); break;
- case PCI_DEVICE_ID_RDK2: ret = net2272_rdk2_probe(pdev, dev); break;
- default: BUG();
- }
- if (ret)
- goto err_pci;
-
- ret = net2272_probe_fin(dev, 0);
- if (ret)
- goto err_pci;
-
- pci_set_drvdata(pdev, dev);
-
- return 0;
-
- err_pci:
- pci_disable_device(pdev);
- err_put:
- usb_put_gadget(&dev->gadget);
-
- return ret;
-}
-
-static void
-net2272_rdk1_remove(struct pci_dev *pdev, struct net2272 *dev)
-{
- int i;
-
- /* disable PLX 9054 interrupts */
- writel(readl(dev->rdk1.plx9054_base_addr + INTCSR) &
- ~(1 << PCI_INTERRUPT_ENABLE),
- dev->rdk1.plx9054_base_addr + INTCSR);
-
- /* clean up resources allocated during probe() */
- iounmap(dev->rdk1.plx9054_base_addr);
- iounmap(dev->rdk1.epld_base_addr);
-
- for (i = 0; i < 4; ++i) {
- if (i == 1)
- continue; /* BAR1 unused */
- release_mem_region(pci_resource_start(pdev, i),
- pci_resource_len(pdev, i));
- }
-}
-
-static void
-net2272_rdk2_remove(struct pci_dev *pdev, struct net2272 *dev)
-{
- int i;
-
- /* disable fpga interrupts
- writel(readl(dev->rdk1.plx9054_base_addr + INTCSR) &
- ~(1 << PCI_INTERRUPT_ENABLE),
- dev->rdk1.plx9054_base_addr + INTCSR);
- */
-
- /* clean up resources allocated during probe() */
- iounmap(dev->rdk2.fpga_base_addr);
-
- for (i = 0; i < 2; ++i)
- release_mem_region(pci_resource_start(pdev, i),
- pci_resource_len(pdev, i));
-}
-
-static void
-net2272_pci_remove(struct pci_dev *pdev)
-{
- struct net2272 *dev = pci_get_drvdata(pdev);
-
- net2272_remove(dev);
-
- switch (pdev->device) {
- case PCI_DEVICE_ID_RDK1: net2272_rdk1_remove(pdev, dev); break;
- case PCI_DEVICE_ID_RDK2: net2272_rdk2_remove(pdev, dev); break;
- default: BUG();
- }
-
- pci_disable_device(pdev);
-
- usb_put_gadget(&dev->gadget);
-}
-
-/* Table of matching PCI IDs */
-static struct pci_device_id pci_ids[] = {
- { /* RDK 1 card */
- .class = ((PCI_CLASS_BRIDGE_OTHER << 8) | 0xfe),
- .class_mask = 0,
- .vendor = PCI_VENDOR_ID_PLX,
- .device = PCI_DEVICE_ID_RDK1,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- },
- { /* RDK 2 card */
- .class = ((PCI_CLASS_BRIDGE_OTHER << 8) | 0xfe),
- .class_mask = 0,
- .vendor = PCI_VENDOR_ID_PLX,
- .device = PCI_DEVICE_ID_RDK2,
- .subvendor = PCI_ANY_ID,
- .subdevice = PCI_ANY_ID,
- },
- { }
-};
-MODULE_DEVICE_TABLE(pci, pci_ids);
-
-static struct pci_driver net2272_pci_driver = {
- .name = driver_name,
- .id_table = pci_ids,
-
- .probe = net2272_pci_probe,
- .remove = net2272_pci_remove,
-};
-
-static int net2272_pci_register(void)
-{
- return pci_register_driver(&net2272_pci_driver);
-}
-
-static void net2272_pci_unregister(void)
-{
- pci_unregister_driver(&net2272_pci_driver);
-}
-
-#else
-static inline int net2272_pci_register(void) { return 0; }
-static inline void net2272_pci_unregister(void) { }
-#endif
-
-/*---------------------------------------------------------------------------*/
-
-static int
-net2272_plat_probe(struct platform_device *pdev)
-{
- struct net2272 *dev;
- int ret;
- unsigned int irqflags;
- resource_size_t base, len;
- struct resource *iomem, *iomem_bus, *irq_res;
-
- irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- iomem_bus = platform_get_resource(pdev, IORESOURCE_BUS, 0);
- if (!irq_res || !iomem) {
- dev_err(&pdev->dev, "must provide irq/base addr");
- return -EINVAL;
- }
-
- dev = net2272_probe_init(&pdev->dev, irq_res->start);
- if (IS_ERR(dev))
- return PTR_ERR(dev);
-
- irqflags = 0;
- if (irq_res->flags & IORESOURCE_IRQ_HIGHEDGE)
- irqflags |= IRQF_TRIGGER_RISING;
- if (irq_res->flags & IORESOURCE_IRQ_LOWEDGE)
- irqflags |= IRQF_TRIGGER_FALLING;
- if (irq_res->flags & IORESOURCE_IRQ_HIGHLEVEL)
- irqflags |= IRQF_TRIGGER_HIGH;
- if (irq_res->flags & IORESOURCE_IRQ_LOWLEVEL)
- irqflags |= IRQF_TRIGGER_LOW;
-
- base = iomem->start;
- len = resource_size(iomem);
- if (iomem_bus)
- dev->base_shift = iomem_bus->start;
-
- if (!request_mem_region(base, len, driver_name)) {
- dev_dbg(dev->dev, "get request memory region!\n");
- ret = -EBUSY;
- goto err;
- }
- dev->base_addr = ioremap(base, len);
- if (!dev->base_addr) {
- dev_dbg(dev->dev, "can't map memory\n");
- ret = -EFAULT;
- goto err_req;
- }
-
- ret = net2272_probe_fin(dev, irqflags);
- if (ret)
- goto err_io;
-
- platform_set_drvdata(pdev, dev);
- dev_info(&pdev->dev, "running in 16-bit, %sbyte swap local bus mode\n",
- (net2272_read(dev, LOCCTL) & (1 << BYTE_SWAP)) ? "" : "no ");
-
- return 0;
-
- err_io:
- iounmap(dev->base_addr);
- err_req:
- release_mem_region(base, len);
- err:
- usb_put_gadget(&dev->gadget);
-
- return ret;
-}
-
-static void
-net2272_plat_remove(struct platform_device *pdev)
-{
- struct net2272 *dev = platform_get_drvdata(pdev);
-
- net2272_remove(dev);
-
- release_mem_region(pdev->resource[0].start,
- resource_size(&pdev->resource[0]));
-
- usb_put_gadget(&dev->gadget);
-}
-
-static struct platform_driver net2272_plat_driver = {
- .probe = net2272_plat_probe,
- .remove = net2272_plat_remove,
- .driver = {
- .name = driver_name,
- },
- /* FIXME .suspend, .resume */
-};
-MODULE_ALIAS("platform:net2272");
-
-static int __init net2272_init(void)
-{
- int ret;
-
- ret = net2272_pci_register();
- if (ret)
- return ret;
- ret = platform_driver_register(&net2272_plat_driver);
- if (ret)
- goto err_pci;
- return ret;
-
-err_pci:
- net2272_pci_unregister();
- return ret;
-}
-module_init(net2272_init);
-
-static void __exit net2272_cleanup(void)
-{
- net2272_pci_unregister();
- platform_driver_unregister(&net2272_plat_driver);
-}
-module_exit(net2272_cleanup);
-
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_AUTHOR("PLX Technology, Inc.");
-MODULE_LICENSE("GPL");
diff --git a/drivers/usb/gadget/udc/net2272.h b/drivers/usb/gadget/udc/net2272.h
deleted file mode 100644
index a9994f737588..000000000000
--- a/drivers/usb/gadget/udc/net2272.h
+++ /dev/null
@@ -1,584 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * PLX NET2272 high/full speed USB device controller
- *
- * Copyright (C) 2005-2006 PLX Technology, Inc.
- * Copyright (C) 2006-2011 Analog Devices, Inc.
- */
-
-#ifndef __NET2272_H__
-#define __NET2272_H__
-
-/* Main Registers */
-#define REGADDRPTR 0x00
-#define REGDATA 0x01
-#define IRQSTAT0 0x02
-#define ENDPOINT_0_INTERRUPT 0
-#define ENDPOINT_A_INTERRUPT 1
-#define ENDPOINT_B_INTERRUPT 2
-#define ENDPOINT_C_INTERRUPT 3
-#define VIRTUALIZED_ENDPOINT_INTERRUPT 4
-#define SETUP_PACKET_INTERRUPT 5
-#define DMA_DONE_INTERRUPT 6
-#define SOF_INTERRUPT 7
-#define IRQSTAT1 0x03
-#define CONTROL_STATUS_INTERRUPT 1
-#define VBUS_INTERRUPT 2
-#define SUSPEND_REQUEST_INTERRUPT 3
-#define SUSPEND_REQUEST_CHANGE_INTERRUPT 4
-#define RESUME_INTERRUPT 5
-#define ROOT_PORT_RESET_INTERRUPT 6
-#define RESET_STATUS 7
-#define PAGESEL 0x04
-#define DMAREQ 0x1c
-#define DMA_ENDPOINT_SELECT 0
-#define DREQ_POLARITY 1
-#define DACK_POLARITY 2
-#define EOT_POLARITY 3
-#define DMA_CONTROL_DACK 4
-#define DMA_REQUEST_ENABLE 5
-#define DMA_REQUEST 6
-#define DMA_BUFFER_VALID 7
-#define SCRATCH 0x1d
-#define IRQENB0 0x20
-#define ENDPOINT_0_INTERRUPT_ENABLE 0
-#define ENDPOINT_A_INTERRUPT_ENABLE 1
-#define ENDPOINT_B_INTERRUPT_ENABLE 2
-#define ENDPOINT_C_INTERRUPT_ENABLE 3
-#define VIRTUALIZED_ENDPOINT_INTERRUPT_ENABLE 4
-#define SETUP_PACKET_INTERRUPT_ENABLE 5
-#define DMA_DONE_INTERRUPT_ENABLE 6
-#define SOF_INTERRUPT_ENABLE 7
-#define IRQENB1 0x21
-#define VBUS_INTERRUPT_ENABLE 2
-#define SUSPEND_REQUEST_INTERRUPT_ENABLE 3
-#define SUSPEND_REQUEST_CHANGE_INTERRUPT_ENABLE 4
-#define RESUME_INTERRUPT_ENABLE 5
-#define ROOT_PORT_RESET_INTERRUPT_ENABLE 6
-#define LOCCTL 0x22
-#define DATA_WIDTH 0
-#define LOCAL_CLOCK_OUTPUT 1
-#define LOCAL_CLOCK_OUTPUT_OFF 0
-#define LOCAL_CLOCK_OUTPUT_3_75MHZ 1
-#define LOCAL_CLOCK_OUTPUT_7_5MHZ 2
-#define LOCAL_CLOCK_OUTPUT_15MHZ 3
-#define LOCAL_CLOCK_OUTPUT_30MHZ 4
-#define LOCAL_CLOCK_OUTPUT_60MHZ 5
-#define DMA_SPLIT_BUS_MODE 4
-#define BYTE_SWAP 5
-#define BUFFER_CONFIGURATION 6
-#define BUFFER_CONFIGURATION_EPA512_EPB512 0
-#define BUFFER_CONFIGURATION_EPA1024_EPB512 1
-#define BUFFER_CONFIGURATION_EPA1024_EPB1024 2
-#define BUFFER_CONFIGURATION_EPA1024DB 3
-#define CHIPREV_LEGACY 0x23
-#define NET2270_LEGACY_REV 0x40
-#define LOCCTL1 0x24
-#define DMA_MODE 0
-#define SLOW_DREQ 0
-#define FAST_DREQ 1
-#define BURST_MODE 2
-#define DMA_DACK_ENABLE 2
-#define CHIPREV_2272 0x25
-#define CHIPREV_NET2272_R1 0x10
-#define CHIPREV_NET2272_R1A 0x11
-/* USB Registers */
-#define USBCTL0 0x18
-#define IO_WAKEUP_ENABLE 1
-#define USB_DETECT_ENABLE 3
-#define USB_ROOT_PORT_WAKEUP_ENABLE 5
-#define USBCTL1 0x19
-#define VBUS_PIN 0
-#define USB_FULL_SPEED 1
-#define USB_HIGH_SPEED 2
-#define GENERATE_RESUME 3
-#define VIRTUAL_ENDPOINT_ENABLE 4
-#define FRAME0 0x1a
-#define FRAME1 0x1b
-#define OURADDR 0x30
-#define FORCE_IMMEDIATE 7
-#define USBDIAG 0x31
-#define FORCE_TRANSMIT_CRC_ERROR 0
-#define PREVENT_TRANSMIT_BIT_STUFF 1
-#define FORCE_RECEIVE_ERROR 2
-#define FAST_TIMES 4
-#define USBTEST 0x32
-#define TEST_MODE_SELECT 0
-#define NORMAL_OPERATION 0
-#define XCVRDIAG 0x33
-#define FORCE_FULL_SPEED 2
-#define FORCE_HIGH_SPEED 3
-#define OPMODE 4
-#define NORMAL_OPERATION 0
-#define NON_DRIVING 1
-#define DISABLE_BITSTUFF_AND_NRZI_ENCODE 2
-#define LINESTATE 6
-#define SE0_STATE 0
-#define J_STATE 1
-#define K_STATE 2
-#define SE1_STATE 3
-#define VIRTOUT0 0x34
-#define VIRTOUT1 0x35
-#define VIRTIN0 0x36
-#define VIRTIN1 0x37
-#define SETUP0 0x40
-#define SETUP1 0x41
-#define SETUP2 0x42
-#define SETUP3 0x43
-#define SETUP4 0x44
-#define SETUP5 0x45
-#define SETUP6 0x46
-#define SETUP7 0x47
-/* Endpoint Registers (Paged via PAGESEL) */
-#define EP_DATA 0x05
-#define EP_STAT0 0x06
-#define DATA_IN_TOKEN_INTERRUPT 0
-#define DATA_OUT_TOKEN_INTERRUPT 1
-#define DATA_PACKET_TRANSMITTED_INTERRUPT 2
-#define DATA_PACKET_RECEIVED_INTERRUPT 3
-#define SHORT_PACKET_TRANSFERRED_INTERRUPT 4
-#define NAK_OUT_PACKETS 5
-#define BUFFER_EMPTY 6
-#define BUFFER_FULL 7
-#define EP_STAT1 0x07
-#define TIMEOUT 0
-#define USB_OUT_ACK_SENT 1
-#define USB_OUT_NAK_SENT 2
-#define USB_IN_ACK_RCVD 3
-#define USB_IN_NAK_SENT 4
-#define USB_STALL_SENT 5
-#define LOCAL_OUT_ZLP 6
-#define BUFFER_FLUSH 7
-#define EP_TRANSFER0 0x08
-#define EP_TRANSFER1 0x09
-#define EP_TRANSFER2 0x0a
-#define EP_IRQENB 0x0b
-#define DATA_IN_TOKEN_INTERRUPT_ENABLE 0
-#define DATA_OUT_TOKEN_INTERRUPT_ENABLE 1
-#define DATA_PACKET_TRANSMITTED_INTERRUPT_ENABLE 2
-#define DATA_PACKET_RECEIVED_INTERRUPT_ENABLE 3
-#define SHORT_PACKET_TRANSFERRED_INTERRUPT_ENABLE 4
-#define EP_AVAIL0 0x0c
-#define EP_AVAIL1 0x0d
-#define EP_RSPCLR 0x0e
-#define EP_RSPSET 0x0f
-#define ENDPOINT_HALT 0
-#define ENDPOINT_TOGGLE 1
-#define NAK_OUT_PACKETS_MODE 2
-#define CONTROL_STATUS_PHASE_HANDSHAKE 3
-#define INTERRUPT_MODE 4
-#define AUTOVALIDATE 5
-#define HIDE_STATUS_PHASE 6
-#define ALT_NAK_OUT_PACKETS 7
-#define EP_MAXPKT0 0x28
-#define EP_MAXPKT1 0x29
-#define ADDITIONAL_TRANSACTION_OPPORTUNITIES 3
-#define NONE_ADDITIONAL_TRANSACTION 0
-#define ONE_ADDITIONAL_TRANSACTION 1
-#define TWO_ADDITIONAL_TRANSACTION 2
-#define EP_CFG 0x2a
-#define ENDPOINT_NUMBER 0
-#define ENDPOINT_DIRECTION 4
-#define ENDPOINT_TYPE 5
-#define ENDPOINT_ENABLE 7
-#define EP_HBW 0x2b
-#define HIGH_BANDWIDTH_OUT_TRANSACTION_PID 0
-#define DATA0_PID 0
-#define DATA1_PID 1
-#define DATA2_PID 2
-#define MDATA_PID 3
-#define EP_BUFF_STATES 0x2c
-#define BUFFER_A_STATE 0
-#define BUFFER_B_STATE 2
-#define BUFF_FREE 0
-#define BUFF_VALID 1
-#define BUFF_LCL 2
-#define BUFF_USB 3
-
-/*---------------------------------------------------------------------------*/
-
-#define PCI_DEVICE_ID_RDK1 0x9054
-
-/* PCI-RDK EPLD Registers */
-#define RDK_EPLD_IO_REGISTER1 0x00000000
-#define RDK_EPLD_USB_RESET 0
-#define RDK_EPLD_USB_POWERDOWN 1
-#define RDK_EPLD_USB_WAKEUP 2
-#define RDK_EPLD_USB_EOT 3
-#define RDK_EPLD_DPPULL 4
-#define RDK_EPLD_IO_REGISTER2 0x00000004
-#define RDK_EPLD_BUSWIDTH 0
-#define RDK_EPLD_USER 2
-#define RDK_EPLD_RESET_INTERRUPT_ENABLE 3
-#define RDK_EPLD_DMA_TIMEOUT_ENABLE 4
-#define RDK_EPLD_STATUS_REGISTER 0x00000008
-#define RDK_EPLD_USB_LRESET 0
-#define RDK_EPLD_REVISION_REGISTER 0x0000000c
-
-/* PCI-RDK PLX 9054 Registers */
-#define INTCSR 0x68
-#define PCI_INTERRUPT_ENABLE 8
-#define LOCAL_INTERRUPT_INPUT_ENABLE 11
-#define LOCAL_INPUT_INTERRUPT_ACTIVE 15
-#define LOCAL_DMA_CHANNEL_0_INTERRUPT_ENABLE 18
-#define LOCAL_DMA_CHANNEL_1_INTERRUPT_ENABLE 19
-#define DMA_CHANNEL_0_INTERRUPT_ACTIVE 21
-#define DMA_CHANNEL_1_INTERRUPT_ACTIVE 22
-#define CNTRL 0x6C
-#define RELOAD_CONFIGURATION_REGISTERS 29
-#define PCI_ADAPTER_SOFTWARE_RESET 30
-#define DMAMODE0 0x80
-#define LOCAL_BUS_WIDTH 0
-#define INTERNAL_WAIT_STATES 2
-#define TA_READY_INPUT_ENABLE 6
-#define LOCAL_BURST_ENABLE 8
-#define SCATTER_GATHER_MODE 9
-#define DONE_INTERRUPT_ENABLE 10
-#define LOCAL_ADDRESSING_MODE 11
-#define DEMAND_MODE 12
-#define DMA_EOT_ENABLE 14
-#define FAST_SLOW_TERMINATE_MODE_SELECT 15
-#define DMA_CHANNEL_INTERRUPT_SELECT 17
-#define DMAPADR0 0x84
-#define DMALADR0 0x88
-#define DMASIZ0 0x8c
-#define DMADPR0 0x90
-#define DESCRIPTOR_LOCATION 0
-#define END_OF_CHAIN 1
-#define INTERRUPT_AFTER_TERMINAL_COUNT 2
-#define DIRECTION_OF_TRANSFER 3
-#define DMACSR0 0xa8
-#define CHANNEL_ENABLE 0
-#define CHANNEL_START 1
-#define CHANNEL_ABORT 2
-#define CHANNEL_CLEAR_INTERRUPT 3
-#define CHANNEL_DONE 4
-#define DMATHR 0xb0
-#define LBRD1 0xf8
-#define MEMORY_SPACE_LOCAL_BUS_WIDTH 0
-#define W8_BIT 0
-#define W16_BIT 1
-
-/* Special OR'ing of INTCSR bits */
-#define LOCAL_INTERRUPT_TEST \
- ((1 << LOCAL_INPUT_INTERRUPT_ACTIVE) | \
- (1 << LOCAL_INTERRUPT_INPUT_ENABLE))
-
-#define DMA_CHANNEL_0_TEST \
- ((1 << DMA_CHANNEL_0_INTERRUPT_ACTIVE) | \
- (1 << LOCAL_DMA_CHANNEL_0_INTERRUPT_ENABLE))
-
-#define DMA_CHANNEL_1_TEST \
- ((1 << DMA_CHANNEL_1_INTERRUPT_ACTIVE) | \
- (1 << LOCAL_DMA_CHANNEL_1_INTERRUPT_ENABLE))
-
-/* EPLD Registers */
-#define RDK_EPLD_IO_REGISTER1 0x00000000
-#define RDK_EPLD_USB_RESET 0
-#define RDK_EPLD_USB_POWERDOWN 1
-#define RDK_EPLD_USB_WAKEUP 2
-#define RDK_EPLD_USB_EOT 3
-#define RDK_EPLD_DPPULL 4
-#define RDK_EPLD_IO_REGISTER2 0x00000004
-#define RDK_EPLD_BUSWIDTH 0
-#define RDK_EPLD_USER 2
-#define RDK_EPLD_RESET_INTERRUPT_ENABLE 3
-#define RDK_EPLD_DMA_TIMEOUT_ENABLE 4
-#define RDK_EPLD_STATUS_REGISTER 0x00000008
-#define RDK_EPLD_USB_LRESET 0
-#define RDK_EPLD_REVISION_REGISTER 0x0000000c
-
-#define EPLD_IO_CONTROL_REGISTER 0x400
-#define NET2272_RESET 0
-#define BUSWIDTH 1
-#define MPX_MODE 3
-#define USER 4
-#define DMA_TIMEOUT_ENABLE 5
-#define DMA_CTL_DACK 6
-#define EPLD_DMA_ENABLE 7
-#define EPLD_DMA_CONTROL_REGISTER 0x800
-#define SPLIT_DMA_MODE 0
-#define SPLIT_DMA_DIRECTION 1
-#define SPLIT_DMA_ENABLE 2
-#define SPLIT_DMA_INTERRUPT_ENABLE 3
-#define SPLIT_DMA_INTERRUPT 4
-#define EPLD_DMA_MODE 5
-#define EPLD_DMA_CONTROLLER_ENABLE 7
-#define SPLIT_DMA_ADDRESS_LOW 0xc00
-#define SPLIT_DMA_ADDRESS_HIGH 0x1000
-#define SPLIT_DMA_BYTE_COUNT_LOW 0x1400
-#define SPLIT_DMA_BYTE_COUNT_HIGH 0x1800
-#define EPLD_REVISION_REGISTER 0x1c00
-#define SPLIT_DMA_RAM 0x4000
-#define DMA_RAM_SIZE 0x1000
-
-/*---------------------------------------------------------------------------*/
-
-#define PCI_DEVICE_ID_RDK2 0x3272
-
-/* PCI-RDK version 2 registers */
-
-/* Main Control Registers */
-
-#define RDK2_IRQENB 0x00
-#define RDK2_IRQSTAT 0x04
-#define PB7 23
-#define PB6 22
-#define PB5 21
-#define PB4 20
-#define PB3 19
-#define PB2 18
-#define PB1 17
-#define PB0 16
-#define GP3 23
-#define GP2 23
-#define GP1 23
-#define GP0 23
-#define DMA_RETRY_ABORT 6
-#define DMA_PAUSE_DONE 5
-#define DMA_ABORT_DONE 4
-#define DMA_OUT_FIFO_TRANSFER_DONE 3
-#define DMA_LOCAL_DONE 2
-#define DMA_PCI_DONE 1
-#define NET2272_PCI_IRQ 0
-
-#define RDK2_LOCCTLRDK 0x08
-#define CHIP_RESET 3
-#define SPLIT_DMA 2
-#define MULTIPLEX_MODE 1
-#define BUS_WIDTH 0
-
-#define RDK2_GPIOCTL 0x10
-#define GP3_OUT_ENABLE 7
-#define GP2_OUT_ENABLE 6
-#define GP1_OUT_ENABLE 5
-#define GP0_OUT_ENABLE 4
-#define GP3_DATA 3
-#define GP2_DATA 2
-#define GP1_DATA 1
-#define GP0_DATA 0
-
-#define RDK2_LEDSW 0x14
-#define LED3 27
-#define LED2 26
-#define LED1 25
-#define LED0 24
-#define PBUTTON 16
-#define DIPSW 0
-
-#define RDK2_DIAG 0x18
-#define RDK2_FAST_TIMES 2
-#define FORCE_PCI_SERR 1
-#define FORCE_PCI_INT 0
-#define RDK2_FPGAREV 0x1C
-
-/* Dma Control registers */
-#define RDK2_DMACTL 0x80
-#define ADDR_HOLD 24
-#define RETRY_COUNT 16 /* 23:16 */
-#define FIFO_THRESHOLD 11 /* 15:11 */
-#define MEM_WRITE_INVALIDATE 10
-#define READ_MULTIPLE 9
-#define READ_LINE 8
-#define RDK2_DMA_MODE 6 /* 7:6 */
-#define CONTROL_DACK 5
-#define EOT_ENABLE 4
-#define EOT_POLARITY 3
-#define DACK_POLARITY 2
-#define DREQ_POLARITY 1
-#define DMA_ENABLE 0
-
-#define RDK2_DMASTAT 0x84
-#define GATHER_COUNT 12 /* 14:12 */
-#define FIFO_COUNT 6 /* 11:6 */
-#define FIFO_FLUSH 5
-#define FIFO_TRANSFER 4
-#define PAUSE_DONE 3
-#define ABORT_DONE 2
-#define DMA_ABORT 1
-#define DMA_START 0
-
-#define RDK2_DMAPCICOUNT 0x88
-#define DMA_DIRECTION 31
-#define DMA_PCI_BYTE_COUNT 0 /* 0:23 */
-
-#define RDK2_DMALOCCOUNT 0x8C /* 0:23 dma local byte count */
-
-#define RDK2_DMAADDR 0x90 /* 2:31 PCI bus starting address */
-
-/*---------------------------------------------------------------------------*/
-
-#define REG_INDEXED_THRESHOLD (1 << 5)
-
-/* DRIVER DATA STRUCTURES and UTILITIES */
-struct net2272_ep {
- struct usb_ep ep;
- struct net2272 *dev;
- unsigned long irqs;
-
- /* analogous to a host-side qh */
- struct list_head queue;
- const struct usb_endpoint_descriptor *desc;
- unsigned num:8,
- fifo_size:12,
- stopped:1,
- wedged:1,
- is_in:1,
- is_iso:1,
- dma:1,
- not_empty:1;
-};
-
-struct net2272 {
- /* each device provides one gadget, several endpoints */
- struct usb_gadget gadget;
- struct device *dev;
- unsigned short dev_id;
-
- spinlock_t lock;
- struct net2272_ep ep[4];
- struct usb_gadget_driver *driver;
- unsigned protocol_stall:1,
- softconnect:1,
- wakeup:1,
- added:1,
- async_callbacks:1,
- dma_eot_polarity:1,
- dma_dack_polarity:1,
- dma_dreq_polarity:1,
- dma_busy:1;
- u16 chiprev;
- u8 pagesel;
-
- unsigned int irq;
- unsigned short fifo_mode;
-
- unsigned int base_shift;
- u16 __iomem *base_addr;
- union {
-#ifdef CONFIG_USB_PCI
- struct {
- void __iomem *plx9054_base_addr;
- void __iomem *epld_base_addr;
- } rdk1;
- struct {
- /* Bar0, Bar1 is base_addr both mem-mapped */
- void __iomem *fpga_base_addr;
- } rdk2;
-#endif
- };
-};
-
-static void __iomem *
-net2272_reg_addr(struct net2272 *dev, unsigned int reg)
-{
- return dev->base_addr + (reg << dev->base_shift);
-}
-
-static void
-net2272_write(struct net2272 *dev, unsigned int reg, u8 value)
-{
- if (reg >= REG_INDEXED_THRESHOLD) {
- /*
- * Indexed register; use REGADDRPTR/REGDATA
- * - Save and restore REGADDRPTR. This prevents REGADDRPTR from
- * changes between other code sections, but it is time consuming.
- * - Performance tips: either do not save and restore REGADDRPTR (if it
- * is safe) or do save/restore operations only in critical sections.
- u8 tmp = readb(dev->base_addr + REGADDRPTR);
- */
- writeb((u8)reg, net2272_reg_addr(dev, REGADDRPTR));
- writeb(value, net2272_reg_addr(dev, REGDATA));
- /* writeb(tmp, net2272_reg_addr(dev, REGADDRPTR)); */
- } else
- writeb(value, net2272_reg_addr(dev, reg));
-}
-
-static u8
-net2272_read(struct net2272 *dev, unsigned int reg)
-{
- u8 ret;
-
- if (reg >= REG_INDEXED_THRESHOLD) {
- /*
- * Indexed register; use REGADDRPTR/REGDATA
- * - Save and restore REGADDRPTR. This prevents REGADDRPTR from
- * changes between other code sections, but it is time consuming.
- * - Performance tips: either do not save and restore REGADDRPTR (if it
- * is safe) or do save/restore operations only in critical sections.
- u8 tmp = readb(dev->base_addr + REGADDRPTR);
- */
- writeb((u8)reg, net2272_reg_addr(dev, REGADDRPTR));
- ret = readb(net2272_reg_addr(dev, REGDATA));
- /* writeb(tmp, net2272_reg_addr(dev, REGADDRPTR)); */
- } else
- ret = readb(net2272_reg_addr(dev, reg));
-
- return ret;
-}
-
-static void
-net2272_ep_write(struct net2272_ep *ep, unsigned int reg, u8 value)
-{
- struct net2272 *dev = ep->dev;
-
- if (dev->pagesel != ep->num) {
- net2272_write(dev, PAGESEL, ep->num);
- dev->pagesel = ep->num;
- }
- net2272_write(dev, reg, value);
-}
-
-static u8
-net2272_ep_read(struct net2272_ep *ep, unsigned int reg)
-{
- struct net2272 *dev = ep->dev;
-
- if (dev->pagesel != ep->num) {
- net2272_write(dev, PAGESEL, ep->num);
- dev->pagesel = ep->num;
- }
- return net2272_read(dev, reg);
-}
-
-static void allow_status(struct net2272_ep *ep)
-{
- /* ep0 only */
- net2272_ep_write(ep, EP_RSPCLR,
- (1 << CONTROL_STATUS_PHASE_HANDSHAKE) |
- (1 << ALT_NAK_OUT_PACKETS) |
- (1 << NAK_OUT_PACKETS_MODE));
- ep->stopped = 1;
-}
-
-static void set_halt(struct net2272_ep *ep)
-{
- /* ep0 and bulk/intr endpoints */
- net2272_ep_write(ep, EP_RSPCLR, 1 << CONTROL_STATUS_PHASE_HANDSHAKE);
- net2272_ep_write(ep, EP_RSPSET, 1 << ENDPOINT_HALT);
-}
-
-static void clear_halt(struct net2272_ep *ep)
-{
- /* ep0 and bulk/intr endpoints */
- net2272_ep_write(ep, EP_RSPCLR,
- (1 << ENDPOINT_HALT) | (1 << ENDPOINT_TOGGLE));
-}
-
-/* count (<= 4) bytes in the next fifo write will be valid */
-static void set_fifo_bytecount(struct net2272_ep *ep, unsigned count)
-{
- /* net2272_ep_write will truncate to u8 for us */
- net2272_ep_write(ep, EP_TRANSFER2, count >> 16);
- net2272_ep_write(ep, EP_TRANSFER1, count >> 8);
- net2272_ep_write(ep, EP_TRANSFER0, count);
-}
-
-struct net2272_request {
- struct usb_request req;
- struct list_head queue;
- unsigned mapped:1,
- valid:1;
-};
-
-#endif
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 5f629d7cad64..b7acf3966cd7 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -126,18 +126,6 @@ config USB_ISP1301
To compile this driver as a module, choose M here: the
module will be called phy-isp1301.
-config USB_MV_OTG
- tristate "Marvell USB OTG support"
- depends on USB_EHCI_MV && USB_MV_UDC && PM && USB_OTG
- depends on USB_GADGET || !USB_GADGET # if USB_GADGET=m, this can't be 'y'
- select USB_PHY
- help
- Say Y here if you want to build Marvell USB OTG transceiver
- driver in kernel (including PXA and MMP series). This driver
- implements role switch between EHCI host driver and gadget driver.
-
- To compile this driver as a module, choose M here.
-
config USB_MXS_PHY
tristate "Freescale MXS USB PHY support"
depends on ARCH_MXC || ARCH_MXS
diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
index e5d619b4d8f6..ceae46c5341d 100644
--- a/drivers/usb/phy/Makefile
+++ b/drivers/usb/phy/Makefile
@@ -18,7 +18,6 @@ obj-$(CONFIG_TWL6030_USB) += phy-twl6030-usb.o
obj-$(CONFIG_USB_TEGRA_PHY) += phy-tegra-usb.o
obj-$(CONFIG_USB_GPIO_VBUS) += phy-gpio-vbus-usb.o
obj-$(CONFIG_USB_ISP1301) += phy-isp1301.o
-obj-$(CONFIG_USB_MV_OTG) += phy-mv-usb.o
obj-$(CONFIG_USB_MXS_PHY) += phy-mxs-usb.o
obj-$(CONFIG_USB_ULPI) += phy-ulpi.o
obj-$(CONFIG_USB_ULPI_VIEWPORT) += phy-ulpi-viewport.o
diff --git a/drivers/usb/phy/phy-mv-usb.c b/drivers/usb/phy/phy-mv-usb.c
deleted file mode 100644
index 638fba58420c..000000000000
--- a/drivers/usb/phy/phy-mv-usb.c
+++ /dev/null
@@ -1,881 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
- * Author: Chao Xie <chao.xie@...vell.com>
- * Neil Zhang <zhangwm@...vell.com>
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/io.h>
-#include <linux/iopoll.h>
-#include <linux/uaccess.h>
-#include <linux/device.h>
-#include <linux/proc_fs.h>
-#include <linux/clk.h>
-#include <linux/workqueue.h>
-#include <linux/platform_device.h>
-#include <linux/string_choices.h>
-
-#include <linux/usb.h>
-#include <linux/usb/ch9.h>
-#include <linux/usb/otg.h>
-#include <linux/usb/gadget.h>
-#include <linux/usb/hcd.h>
-#include <linux/platform_data/mv_usb.h>
-
-#include "phy-mv-usb.h"
-
-#define DRIVER_DESC "Marvell USB OTG transceiver driver"
-
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
-
-static const char driver_name[] = "mv-otg";
-
-static char *state_string[] = {
- "undefined",
- "b_idle",
- "b_srp_init",
- "b_peripheral",
- "b_wait_acon",
- "b_host",
- "a_idle",
- "a_wait_vrise",
- "a_wait_bcon",
- "a_host",
- "a_suspend",
- "a_peripheral",
- "a_wait_vfall",
- "a_vbus_err"
-};
-
-static int mv_otg_set_vbus(struct usb_otg *otg, bool on)
-{
- struct mv_otg *mvotg = container_of(otg->usb_phy, struct mv_otg, phy);
- if (mvotg->pdata->set_vbus == NULL)
- return -ENODEV;
-
- return mvotg->pdata->set_vbus(on);
-}
-
-static int mv_otg_set_host(struct usb_otg *otg,
- struct usb_bus *host)
-{
- otg->host = host;
-
- return 0;
-}
-
-static int mv_otg_set_peripheral(struct usb_otg *otg,
- struct usb_gadget *gadget)
-{
- otg->gadget = gadget;
-
- return 0;
-}
-
-static void mv_otg_run_state_machine(struct mv_otg *mvotg,
- unsigned long delay)
-{
- dev_dbg(&mvotg->pdev->dev, "transceiver is updated\n");
- if (!mvotg->qwork)
- return;
-
- queue_delayed_work(mvotg->qwork, &mvotg->work, delay);
-}
-
-static void mv_otg_timer_await_bcon(struct timer_list *t)
-{
- struct mv_otg *mvotg = from_timer(mvotg, t,
- otg_ctrl.timer[A_WAIT_BCON_TIMER]);
-
- mvotg->otg_ctrl.a_wait_bcon_timeout = 1;
-
- dev_info(&mvotg->pdev->dev, "B Device No Response!\n");
-
- if (spin_trylock(&mvotg->wq_lock)) {
- mv_otg_run_state_machine(mvotg, 0);
- spin_unlock(&mvotg->wq_lock);
- }
-}
-
-static int mv_otg_cancel_timer(struct mv_otg *mvotg, unsigned int id)
-{
- struct timer_list *timer;
-
- if (id >= OTG_TIMER_NUM)
- return -EINVAL;
-
- timer = &mvotg->otg_ctrl.timer[id];
-
- if (timer_pending(timer))
- timer_delete(timer);
-
- return 0;
-}
-
-static int mv_otg_set_timer(struct mv_otg *mvotg, unsigned int id,
- unsigned long interval)
-{
- struct timer_list *timer;
-
- if (id >= OTG_TIMER_NUM)
- return -EINVAL;
-
- timer = &mvotg->otg_ctrl.timer[id];
- if (timer_pending(timer)) {
- dev_err(&mvotg->pdev->dev, "Timer%d is already running\n", id);
- return -EBUSY;
- }
-
- timer->expires = jiffies + interval;
- add_timer(timer);
-
- return 0;
-}
-
-static int mv_otg_reset(struct mv_otg *mvotg)
-{
- u32 tmp;
- int ret;
-
- /* Stop the controller */
- tmp = readl(&mvotg->op_regs->usbcmd);
- tmp &= ~USBCMD_RUN_STOP;
- writel(tmp, &mvotg->op_regs->usbcmd);
-
- /* Reset the controller to get default values */
- writel(USBCMD_CTRL_RESET, &mvotg->op_regs->usbcmd);
-
- ret = readl_poll_timeout_atomic(&mvotg->op_regs->usbcmd, tmp,
- (tmp & USBCMD_CTRL_RESET), 10, 10000);
- if (ret < 0) {
- dev_err(&mvotg->pdev->dev,
- "Wait for RESET completed TIMEOUT\n");
- return ret;
- }
-
- writel(0x0, &mvotg->op_regs->usbintr);
- tmp = readl(&mvotg->op_regs->usbsts);
- writel(tmp, &mvotg->op_regs->usbsts);
-
- return 0;
-}
-
-static void mv_otg_init_irq(struct mv_otg *mvotg)
-{
- u32 otgsc;
-
- mvotg->irq_en = OTGSC_INTR_A_SESSION_VALID
- | OTGSC_INTR_A_VBUS_VALID;
- mvotg->irq_status = OTGSC_INTSTS_A_SESSION_VALID
- | OTGSC_INTSTS_A_VBUS_VALID;
-
- if (mvotg->pdata->vbus == NULL) {
- mvotg->irq_en |= OTGSC_INTR_B_SESSION_VALID
- | OTGSC_INTR_B_SESSION_END;
- mvotg->irq_status |= OTGSC_INTSTS_B_SESSION_VALID
- | OTGSC_INTSTS_B_SESSION_END;
- }
-
- if (mvotg->pdata->id == NULL) {
- mvotg->irq_en |= OTGSC_INTR_USB_ID;
- mvotg->irq_status |= OTGSC_INTSTS_USB_ID;
- }
-
- otgsc = readl(&mvotg->op_regs->otgsc);
- otgsc |= mvotg->irq_en;
- writel(otgsc, &mvotg->op_regs->otgsc);
-}
-
-static void mv_otg_start_host(struct mv_otg *mvotg, int on)
-{
-#ifdef CONFIG_USB
- struct usb_otg *otg = mvotg->phy.otg;
- struct usb_hcd *hcd;
-
- if (!otg->host)
- return;
-
- dev_info(&mvotg->pdev->dev, "%s host\n", on ? "start" : "stop");
-
- hcd = bus_to_hcd(otg->host);
-
- if (on) {
- usb_add_hcd(hcd, hcd->irq, IRQF_SHARED);
- device_wakeup_enable(hcd->self.controller);
- } else {
- usb_remove_hcd(hcd);
- }
-#endif /* CONFIG_USB */
-}
-
-static void mv_otg_start_periphrals(struct mv_otg *mvotg, int on)
-{
- struct usb_otg *otg = mvotg->phy.otg;
-
- if (!otg->gadget)
- return;
-
- dev_info(mvotg->phy.dev, "gadget %s\n", str_on_off(on));
-
- if (on)
- usb_gadget_vbus_connect(otg->gadget);
- else
- usb_gadget_vbus_disconnect(otg->gadget);
-}
-
-static void otg_clock_enable(struct mv_otg *mvotg)
-{
- clk_prepare_enable(mvotg->clk);
-}
-
-static void otg_clock_disable(struct mv_otg *mvotg)
-{
- clk_disable_unprepare(mvotg->clk);
-}
-
-static int mv_otg_enable_internal(struct mv_otg *mvotg)
-{
- int retval = 0;
-
- if (mvotg->active)
- return 0;
-
- dev_dbg(&mvotg->pdev->dev, "otg enabled\n");
-
- otg_clock_enable(mvotg);
- if (mvotg->pdata->phy_init) {
- retval = mvotg->pdata->phy_init(mvotg->phy_regs);
- if (retval) {
- dev_err(&mvotg->pdev->dev,
- "init phy error %d\n", retval);
- otg_clock_disable(mvotg);
- return retval;
- }
- }
- mvotg->active = 1;
-
- return 0;
-
-}
-
-static int mv_otg_enable(struct mv_otg *mvotg)
-{
- if (mvotg->clock_gating)
- return mv_otg_enable_internal(mvotg);
-
- return 0;
-}
-
-static void mv_otg_disable_internal(struct mv_otg *mvotg)
-{
- if (mvotg->active) {
- dev_dbg(&mvotg->pdev->dev, "otg disabled\n");
- if (mvotg->pdata->phy_deinit)
- mvotg->pdata->phy_deinit(mvotg->phy_regs);
- otg_clock_disable(mvotg);
- mvotg->active = 0;
- }
-}
-
-static void mv_otg_disable(struct mv_otg *mvotg)
-{
- if (mvotg->clock_gating)
- mv_otg_disable_internal(mvotg);
-}
-
-static void mv_otg_update_inputs(struct mv_otg *mvotg)
-{
- struct mv_otg_ctrl *otg_ctrl = &mvotg->otg_ctrl;
- u32 otgsc;
-
- otgsc = readl(&mvotg->op_regs->otgsc);
-
- if (mvotg->pdata->vbus) {
- if (mvotg->pdata->vbus->poll() == VBUS_HIGH) {
- otg_ctrl->b_sess_vld = 1;
- otg_ctrl->b_sess_end = 0;
- } else {
- otg_ctrl->b_sess_vld = 0;
- otg_ctrl->b_sess_end = 1;
- }
- } else {
- otg_ctrl->b_sess_vld = !!(otgsc & OTGSC_STS_B_SESSION_VALID);
- otg_ctrl->b_sess_end = !!(otgsc & OTGSC_STS_B_SESSION_END);
- }
-
- if (mvotg->pdata->id)
- otg_ctrl->id = !!mvotg->pdata->id->poll();
- else
- otg_ctrl->id = !!(otgsc & OTGSC_STS_USB_ID);
-
- if (mvotg->pdata->otg_force_a_bus_req && !otg_ctrl->id)
- otg_ctrl->a_bus_req = 1;
-
- otg_ctrl->a_sess_vld = !!(otgsc & OTGSC_STS_A_SESSION_VALID);
- otg_ctrl->a_vbus_vld = !!(otgsc & OTGSC_STS_A_VBUS_VALID);
-
- dev_dbg(&mvotg->pdev->dev, "%s: ", __func__);
- dev_dbg(&mvotg->pdev->dev, "id %d\n", otg_ctrl->id);
- dev_dbg(&mvotg->pdev->dev, "b_sess_vld %d\n", otg_ctrl->b_sess_vld);
- dev_dbg(&mvotg->pdev->dev, "b_sess_end %d\n", otg_ctrl->b_sess_end);
- dev_dbg(&mvotg->pdev->dev, "a_vbus_vld %d\n", otg_ctrl->a_vbus_vld);
- dev_dbg(&mvotg->pdev->dev, "a_sess_vld %d\n", otg_ctrl->a_sess_vld);
-}
-
-static void mv_otg_update_state(struct mv_otg *mvotg)
-{
- struct mv_otg_ctrl *otg_ctrl = &mvotg->otg_ctrl;
- int old_state = mvotg->phy.otg->state;
-
- switch (old_state) {
- case OTG_STATE_UNDEFINED:
- mvotg->phy.otg->state = OTG_STATE_B_IDLE;
- fallthrough;
- case OTG_STATE_B_IDLE:
- if (otg_ctrl->id == 0)
- mvotg->phy.otg->state = OTG_STATE_A_IDLE;
- else if (otg_ctrl->b_sess_vld)
- mvotg->phy.otg->state = OTG_STATE_B_PERIPHERAL;
- break;
- case OTG_STATE_B_PERIPHERAL:
- if (!otg_ctrl->b_sess_vld || otg_ctrl->id == 0)
- mvotg->phy.otg->state = OTG_STATE_B_IDLE;
- break;
- case OTG_STATE_A_IDLE:
- if (otg_ctrl->id)
- mvotg->phy.otg->state = OTG_STATE_B_IDLE;
- else if (!(otg_ctrl->a_bus_drop) &&
- (otg_ctrl->a_bus_req || otg_ctrl->a_srp_det))
- mvotg->phy.otg->state = OTG_STATE_A_WAIT_VRISE;
- break;
- case OTG_STATE_A_WAIT_VRISE:
- if (otg_ctrl->a_vbus_vld)
- mvotg->phy.otg->state = OTG_STATE_A_WAIT_BCON;
- break;
- case OTG_STATE_A_WAIT_BCON:
- if (otg_ctrl->id || otg_ctrl->a_bus_drop
- || otg_ctrl->a_wait_bcon_timeout) {
- mv_otg_cancel_timer(mvotg, A_WAIT_BCON_TIMER);
- mvotg->otg_ctrl.a_wait_bcon_timeout = 0;
- mvotg->phy.otg->state = OTG_STATE_A_WAIT_VFALL;
- otg_ctrl->a_bus_req = 0;
- } else if (!otg_ctrl->a_vbus_vld) {
- mv_otg_cancel_timer(mvotg, A_WAIT_BCON_TIMER);
- mvotg->otg_ctrl.a_wait_bcon_timeout = 0;
- mvotg->phy.otg->state = OTG_STATE_A_VBUS_ERR;
- } else if (otg_ctrl->b_conn) {
- mv_otg_cancel_timer(mvotg, A_WAIT_BCON_TIMER);
- mvotg->otg_ctrl.a_wait_bcon_timeout = 0;
- mvotg->phy.otg->state = OTG_STATE_A_HOST;
- }
- break;
- case OTG_STATE_A_HOST:
- if (otg_ctrl->id || !otg_ctrl->b_conn
- || otg_ctrl->a_bus_drop)
- mvotg->phy.otg->state = OTG_STATE_A_WAIT_BCON;
- else if (!otg_ctrl->a_vbus_vld)
- mvotg->phy.otg->state = OTG_STATE_A_VBUS_ERR;
- break;
- case OTG_STATE_A_WAIT_VFALL:
- if (otg_ctrl->id
- || (!otg_ctrl->b_conn && otg_ctrl->a_sess_vld)
- || otg_ctrl->a_bus_req)
- mvotg->phy.otg->state = OTG_STATE_A_IDLE;
- break;
- case OTG_STATE_A_VBUS_ERR:
- if (otg_ctrl->id || otg_ctrl->a_clr_err
- || otg_ctrl->a_bus_drop) {
- otg_ctrl->a_clr_err = 0;
- mvotg->phy.otg->state = OTG_STATE_A_WAIT_VFALL;
- }
- break;
- default:
- break;
- }
-}
-
-static void mv_otg_work(struct work_struct *work)
-{
- struct mv_otg *mvotg;
- struct usb_otg *otg;
- int old_state;
-
- mvotg = container_of(to_delayed_work(work), struct mv_otg, work);
-
-run:
- /* work queue is single thread, or we need spin_lock to protect */
- otg = mvotg->phy.otg;
- old_state = otg->state;
-
- if (!mvotg->active)
- return;
-
- mv_otg_update_inputs(mvotg);
- mv_otg_update_state(mvotg);
-
- if (old_state != mvotg->phy.otg->state) {
- dev_info(&mvotg->pdev->dev, "change from state %s to %s\n",
- state_string[old_state],
- state_string[mvotg->phy.otg->state]);
-
- switch (mvotg->phy.otg->state) {
- case OTG_STATE_B_IDLE:
- otg->default_a = 0;
- if (old_state == OTG_STATE_B_PERIPHERAL)
- mv_otg_start_periphrals(mvotg, 0);
- mv_otg_reset(mvotg);
- mv_otg_disable(mvotg);
- usb_phy_set_event(&mvotg->phy, USB_EVENT_NONE);
- break;
- case OTG_STATE_B_PERIPHERAL:
- mv_otg_enable(mvotg);
- mv_otg_start_periphrals(mvotg, 1);
- usb_phy_set_event(&mvotg->phy, USB_EVENT_ENUMERATED);
- break;
- case OTG_STATE_A_IDLE:
- otg->default_a = 1;
- mv_otg_enable(mvotg);
- if (old_state == OTG_STATE_A_WAIT_VFALL)
- mv_otg_start_host(mvotg, 0);
- mv_otg_reset(mvotg);
- break;
- case OTG_STATE_A_WAIT_VRISE:
- mv_otg_set_vbus(otg, 1);
- break;
- case OTG_STATE_A_WAIT_BCON:
- if (old_state != OTG_STATE_A_HOST)
- mv_otg_start_host(mvotg, 1);
- mv_otg_set_timer(mvotg, A_WAIT_BCON_TIMER,
- T_A_WAIT_BCON);
- /*
- * Now, we directly enter A_HOST. So set b_conn = 1
- * here. In fact, it need host driver to notify us.
- */
- mvotg->otg_ctrl.b_conn = 1;
- break;
- case OTG_STATE_A_HOST:
- break;
- case OTG_STATE_A_WAIT_VFALL:
- /*
- * Now, we has exited A_HOST. So set b_conn = 0
- * here. In fact, it need host driver to notify us.
- */
- mvotg->otg_ctrl.b_conn = 0;
- mv_otg_set_vbus(otg, 0);
- break;
- case OTG_STATE_A_VBUS_ERR:
- break;
- default:
- break;
- }
- goto run;
- }
-}
-
-static irqreturn_t mv_otg_irq(int irq, void *dev)
-{
- struct mv_otg *mvotg = dev;
- u32 otgsc;
-
- otgsc = readl(&mvotg->op_regs->otgsc);
- writel(otgsc, &mvotg->op_regs->otgsc);
-
- /*
- * if we have vbus, then the vbus detection for B-device
- * will be done by mv_otg_inputs_irq().
- */
- if (mvotg->pdata->vbus)
- if ((otgsc & OTGSC_STS_USB_ID) &&
- !(otgsc & OTGSC_INTSTS_USB_ID))
- return IRQ_NONE;
-
- if ((otgsc & mvotg->irq_status) == 0)
- return IRQ_NONE;
-
- mv_otg_run_state_machine(mvotg, 0);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t mv_otg_inputs_irq(int irq, void *dev)
-{
- struct mv_otg *mvotg = dev;
-
- /* The clock may disabled at this time */
- if (!mvotg->active) {
- mv_otg_enable(mvotg);
- mv_otg_init_irq(mvotg);
- }
-
- mv_otg_run_state_machine(mvotg, 0);
-
- return IRQ_HANDLED;
-}
-
-static ssize_t
-a_bus_req_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct mv_otg *mvotg = dev_get_drvdata(dev);
- return scnprintf(buf, PAGE_SIZE, "%d\n",
- mvotg->otg_ctrl.a_bus_req);
-}
-
-static ssize_t
-a_bus_req_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct mv_otg *mvotg = dev_get_drvdata(dev);
-
- if (count > 2)
- return -1;
-
- /* We will use this interface to change to A device */
- if (mvotg->phy.otg->state != OTG_STATE_B_IDLE
- && mvotg->phy.otg->state != OTG_STATE_A_IDLE)
- return -1;
-
- /* The clock may disabled and we need to set irq for ID detected */
- mv_otg_enable(mvotg);
- mv_otg_init_irq(mvotg);
-
- if (buf[0] == '1') {
- mvotg->otg_ctrl.a_bus_req = 1;
- mvotg->otg_ctrl.a_bus_drop = 0;
- dev_dbg(&mvotg->pdev->dev,
- "User request: a_bus_req = 1\n");
-
- if (spin_trylock(&mvotg->wq_lock)) {
- mv_otg_run_state_machine(mvotg, 0);
- spin_unlock(&mvotg->wq_lock);
- }
- }
-
- return count;
-}
-
-static DEVICE_ATTR_RW(a_bus_req);
-
-static ssize_t
-a_clr_err_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct mv_otg *mvotg = dev_get_drvdata(dev);
- if (!mvotg->phy.otg->default_a)
- return -1;
-
- if (count > 2)
- return -1;
-
- if (buf[0] == '1') {
- mvotg->otg_ctrl.a_clr_err = 1;
- dev_dbg(&mvotg->pdev->dev,
- "User request: a_clr_err = 1\n");
- }
-
- if (spin_trylock(&mvotg->wq_lock)) {
- mv_otg_run_state_machine(mvotg, 0);
- spin_unlock(&mvotg->wq_lock);
- }
-
- return count;
-}
-
-static DEVICE_ATTR_WO(a_clr_err);
-
-static ssize_t
-a_bus_drop_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct mv_otg *mvotg = dev_get_drvdata(dev);
- return scnprintf(buf, PAGE_SIZE, "%d\n",
- mvotg->otg_ctrl.a_bus_drop);
-}
-
-static ssize_t
-a_bus_drop_store(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct mv_otg *mvotg = dev_get_drvdata(dev);
- if (!mvotg->phy.otg->default_a)
- return -1;
-
- if (count > 2)
- return -1;
-
- if (buf[0] == '0') {
- mvotg->otg_ctrl.a_bus_drop = 0;
- dev_dbg(&mvotg->pdev->dev,
- "User request: a_bus_drop = 0\n");
- } else if (buf[0] == '1') {
- mvotg->otg_ctrl.a_bus_drop = 1;
- mvotg->otg_ctrl.a_bus_req = 0;
- dev_dbg(&mvotg->pdev->dev,
- "User request: a_bus_drop = 1\n");
- dev_dbg(&mvotg->pdev->dev,
- "User request: and a_bus_req = 0\n");
- }
-
- if (spin_trylock(&mvotg->wq_lock)) {
- mv_otg_run_state_machine(mvotg, 0);
- spin_unlock(&mvotg->wq_lock);
- }
-
- return count;
-}
-
-static DEVICE_ATTR_RW(a_bus_drop);
-
-static struct attribute *inputs_attrs[] = {
- &dev_attr_a_bus_req.attr,
- &dev_attr_a_clr_err.attr,
- &dev_attr_a_bus_drop.attr,
- NULL,
-};
-
-static const struct attribute_group inputs_attr_group = {
- .name = "inputs",
- .attrs = inputs_attrs,
-};
-
-static const struct attribute_group *mv_otg_groups[] = {
- &inputs_attr_group,
- NULL,
-};
-
-static void mv_otg_remove(struct platform_device *pdev)
-{
- struct mv_otg *mvotg = platform_get_drvdata(pdev);
-
- if (mvotg->qwork)
- destroy_workqueue(mvotg->qwork);
-
- mv_otg_disable(mvotg);
-
- usb_remove_phy(&mvotg->phy);
-}
-
-static int mv_otg_probe(struct platform_device *pdev)
-{
- struct mv_usb_platform_data *pdata = dev_get_platdata(&pdev->dev);
- struct mv_otg *mvotg;
- struct usb_otg *otg;
- struct resource *r;
- int retval = 0, i;
-
- if (pdata == NULL) {
- dev_err(&pdev->dev, "failed to get platform data\n");
- return -ENODEV;
- }
-
- mvotg = devm_kzalloc(&pdev->dev, sizeof(*mvotg), GFP_KERNEL);
- if (!mvotg)
- return -ENOMEM;
-
- otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL);
- if (!otg)
- return -ENOMEM;
-
- platform_set_drvdata(pdev, mvotg);
-
- mvotg->pdev = pdev;
- mvotg->pdata = pdata;
-
- mvotg->clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(mvotg->clk))
- return PTR_ERR(mvotg->clk);
-
- mvotg->qwork = create_singlethread_workqueue("mv_otg_queue");
- if (!mvotg->qwork) {
- dev_dbg(&pdev->dev, "cannot create workqueue for OTG\n");
- return -ENOMEM;
- }
-
- INIT_DELAYED_WORK(&mvotg->work, mv_otg_work);
-
- /* OTG common part */
- mvotg->pdev = pdev;
- mvotg->phy.dev = &pdev->dev;
- mvotg->phy.otg = otg;
- mvotg->phy.label = driver_name;
-
- otg->state = OTG_STATE_UNDEFINED;
- otg->usb_phy = &mvotg->phy;
- otg->set_host = mv_otg_set_host;
- otg->set_peripheral = mv_otg_set_peripheral;
- otg->set_vbus = mv_otg_set_vbus;
-
- for (i = 0; i < OTG_TIMER_NUM; i++)
- timer_setup(&mvotg->otg_ctrl.timer[i],
- mv_otg_timer_await_bcon, 0);
-
- r = platform_get_resource_byname(mvotg->pdev,
- IORESOURCE_MEM, "phyregs");
- if (r == NULL) {
- dev_err(&pdev->dev, "no phy I/O memory resource defined\n");
- retval = -ENODEV;
- goto err_destroy_workqueue;
- }
-
- mvotg->phy_regs = devm_ioremap(&pdev->dev, r->start, resource_size(r));
- if (mvotg->phy_regs == NULL) {
- dev_err(&pdev->dev, "failed to map phy I/O memory\n");
- retval = -EFAULT;
- goto err_destroy_workqueue;
- }
-
- r = platform_get_resource_byname(mvotg->pdev,
- IORESOURCE_MEM, "capregs");
- if (r == NULL) {
- dev_err(&pdev->dev, "no I/O memory resource defined\n");
- retval = -ENODEV;
- goto err_destroy_workqueue;
- }
-
- mvotg->cap_regs = devm_ioremap(&pdev->dev, r->start, resource_size(r));
- if (mvotg->cap_regs == NULL) {
- dev_err(&pdev->dev, "failed to map I/O memory\n");
- retval = -EFAULT;
- goto err_destroy_workqueue;
- }
-
- /* we will acces controller register, so enable the udc controller */
- retval = mv_otg_enable_internal(mvotg);
- if (retval) {
- dev_err(&pdev->dev, "mv otg enable error %d\n", retval);
- goto err_destroy_workqueue;
- }
-
- mvotg->op_regs =
- (struct mv_otg_regs __iomem *) ((unsigned long) mvotg->cap_regs
- + (readl(mvotg->cap_regs) & CAPLENGTH_MASK));
-
- if (pdata->id) {
- retval = devm_request_threaded_irq(&pdev->dev, pdata->id->irq,
- NULL, mv_otg_inputs_irq,
- IRQF_ONESHOT, "id", mvotg);
- if (retval) {
- dev_info(&pdev->dev,
- "Failed to request irq for ID\n");
- pdata->id = NULL;
- }
- }
-
- if (pdata->vbus) {
- mvotg->clock_gating = 1;
- retval = devm_request_threaded_irq(&pdev->dev, pdata->vbus->irq,
- NULL, mv_otg_inputs_irq,
- IRQF_ONESHOT, "vbus", mvotg);
- if (retval) {
- dev_info(&pdev->dev,
- "Failed to request irq for VBUS, "
- "disable clock gating\n");
- mvotg->clock_gating = 0;
- pdata->vbus = NULL;
- }
- }
-
- if (pdata->disable_otg_clock_gating)
- mvotg->clock_gating = 0;
-
- mv_otg_reset(mvotg);
- mv_otg_init_irq(mvotg);
-
- r = platform_get_resource(mvotg->pdev, IORESOURCE_IRQ, 0);
- if (r == NULL) {
- dev_err(&pdev->dev, "no IRQ resource defined\n");
- retval = -ENODEV;
- goto err_disable_clk;
- }
-
- mvotg->irq = r->start;
- if (devm_request_irq(&pdev->dev, mvotg->irq, mv_otg_irq, IRQF_SHARED,
- driver_name, mvotg)) {
- dev_err(&pdev->dev, "Request irq %d for OTG failed\n",
- mvotg->irq);
- mvotg->irq = 0;
- retval = -ENODEV;
- goto err_disable_clk;
- }
-
- retval = usb_add_phy(&mvotg->phy, USB_PHY_TYPE_USB2);
- if (retval < 0) {
- dev_err(&pdev->dev, "can't register transceiver, %d\n",
- retval);
- goto err_disable_clk;
- }
-
- spin_lock_init(&mvotg->wq_lock);
- if (spin_trylock(&mvotg->wq_lock)) {
- mv_otg_run_state_machine(mvotg, 2 * HZ);
- spin_unlock(&mvotg->wq_lock);
- }
-
- dev_info(&pdev->dev,
- "successful probe OTG device %s clock gating.\n",
- mvotg->clock_gating ? "with" : "without");
-
- return 0;
-
-err_disable_clk:
- mv_otg_disable_internal(mvotg);
-err_destroy_workqueue:
- destroy_workqueue(mvotg->qwork);
-
- return retval;
-}
-
-#ifdef CONFIG_PM
-static int mv_otg_suspend(struct platform_device *pdev, pm_message_t state)
-{
- struct mv_otg *mvotg = platform_get_drvdata(pdev);
-
- if (mvotg->phy.otg->state != OTG_STATE_B_IDLE) {
- dev_info(&pdev->dev,
- "OTG state is not B_IDLE, it is %d!\n",
- mvotg->phy.otg->state);
- return -EAGAIN;
- }
-
- if (!mvotg->clock_gating)
- mv_otg_disable_internal(mvotg);
-
- return 0;
-}
-
-static int mv_otg_resume(struct platform_device *pdev)
-{
- struct mv_otg *mvotg = platform_get_drvdata(pdev);
- u32 otgsc;
-
- if (!mvotg->clock_gating) {
- mv_otg_enable_internal(mvotg);
-
- otgsc = readl(&mvotg->op_regs->otgsc);
- otgsc |= mvotg->irq_en;
- writel(otgsc, &mvotg->op_regs->otgsc);
-
- if (spin_trylock(&mvotg->wq_lock)) {
- mv_otg_run_state_machine(mvotg, 0);
- spin_unlock(&mvotg->wq_lock);
- }
- }
- return 0;
-}
-#endif
-
-static struct platform_driver mv_otg_driver = {
- .probe = mv_otg_probe,
- .remove = mv_otg_remove,
- .driver = {
- .name = driver_name,
- .dev_groups = mv_otg_groups,
- },
-#ifdef CONFIG_PM
- .suspend = mv_otg_suspend,
- .resume = mv_otg_resume,
-#endif
-};
-module_platform_driver(mv_otg_driver);
--
2.47.2
Powered by blists - more mailing lists