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Message-ID: <1337039376-15345-1-git-send-email-syahn@gctsemi.com>
Date: Tue, 15 May 2012 08:49:36 +0900
From: Sage Ahn <syahn@...semi.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC: <devel@...verdev.osuosl.org>, <linux-kernel@...r.kernel.org>,
<olofj@...omium.org>, <benchan@...omium.org>,
Sage Ahn <syahn@...semi.com>
Subject: [PATCH] staging: gdm72xx: Add GCT GDM72xx WiMAX driver.
This patch provides the kernel driver for the GDM72xx WiMAX chips
developed by GCT Semiconductor, Inc., which enables mobile WiMAX
connection on the Linux host.
Signed-off-by: Sage Ahn <syahn@...semi.com>
Cc: Ben Chan <benchan@...omium.org>
---
drivers/staging/Kconfig | 2 +
drivers/staging/Makefile | 1 +
drivers/staging/gdm72xx/ChangeLog | 88 +++
drivers/staging/gdm72xx/Kconfig | 45 ++
drivers/staging/gdm72xx/LICENSE | 26 +
drivers/staging/gdm72xx/Makefile | 6 +
drivers/staging/gdm72xx/TODO | 5 +
drivers/staging/gdm72xx/gdm_qos.c | 453 ++++++++++++++++
drivers/staging/gdm72xx/gdm_qos.h | 86 +++
drivers/staging/gdm72xx/gdm_sdio.c | 747 +++++++++++++++++++++++++
drivers/staging/gdm72xx/gdm_sdio.h | 65 +++
drivers/staging/gdm72xx/gdm_usb.c | 797 +++++++++++++++++++++++++++
drivers/staging/gdm72xx/gdm_usb.h | 78 +++
drivers/staging/gdm72xx/gdm_wimax.c | 1018 +++++++++++++++++++++++++++++++++++
drivers/staging/gdm72xx/gdm_wimax.h | 85 +++
drivers/staging/gdm72xx/hci.h | 211 ++++++++
drivers/staging/gdm72xx/netlink_k.c | 143 +++++
drivers/staging/gdm72xx/netlink_k.h | 17 +
drivers/staging/gdm72xx/sdio_boot.c | 152 ++++++
drivers/staging/gdm72xx/sdio_boot.h | 14 +
drivers/staging/gdm72xx/usb_boot.c | 397 ++++++++++++++
drivers/staging/gdm72xx/usb_boot.h | 15 +
drivers/staging/gdm72xx/usb_ids.h | 75 +++
drivers/staging/gdm72xx/wm_ioctl.h | 90 +++
24 files changed, 4616 insertions(+), 0 deletions(-)
create mode 100644 drivers/staging/gdm72xx/ChangeLog
create mode 100644 drivers/staging/gdm72xx/Kconfig
create mode 100644 drivers/staging/gdm72xx/LICENSE
create mode 100644 drivers/staging/gdm72xx/Makefile
create mode 100644 drivers/staging/gdm72xx/TODO
create mode 100644 drivers/staging/gdm72xx/gdm_qos.c
create mode 100644 drivers/staging/gdm72xx/gdm_qos.h
create mode 100644 drivers/staging/gdm72xx/gdm_sdio.c
create mode 100644 drivers/staging/gdm72xx/gdm_sdio.h
create mode 100644 drivers/staging/gdm72xx/gdm_usb.c
create mode 100644 drivers/staging/gdm72xx/gdm_usb.h
create mode 100644 drivers/staging/gdm72xx/gdm_wimax.c
create mode 100644 drivers/staging/gdm72xx/gdm_wimax.h
create mode 100644 drivers/staging/gdm72xx/hci.h
create mode 100644 drivers/staging/gdm72xx/netlink_k.c
create mode 100644 drivers/staging/gdm72xx/netlink_k.h
create mode 100644 drivers/staging/gdm72xx/sdio_boot.c
create mode 100644 drivers/staging/gdm72xx/sdio_boot.h
create mode 100644 drivers/staging/gdm72xx/usb_boot.c
create mode 100644 drivers/staging/gdm72xx/usb_boot.h
create mode 100644 drivers/staging/gdm72xx/usb_ids.h
create mode 100644 drivers/staging/gdm72xx/wm_ioctl.h
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index d6417d11..7e0e5e4 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -130,4 +130,6 @@ source "drivers/staging/ozwpan/Kconfig"
source "drivers/staging/ipack/Kconfig"
+source "drivers/staging/gdm72xx/Kconfig"
+
endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index fd8b7ce..3090105 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -57,3 +57,4 @@ obj-$(CONFIG_ANDROID) += android/
obj-$(CONFIG_PHONE) += telephony/
obj-$(CONFIG_RAMSTER) += ramster/
obj-$(CONFIG_USB_WPAN_HCD) += ozwpan/
+obj-$(CONFIG_WIMAX_GDM72XX) += gdm72xx/
diff --git a/drivers/staging/gdm72xx/ChangeLog b/drivers/staging/gdm72xx/ChangeLog
new file mode 100644
index 0000000..948fe4e
--- /dev/null
+++ b/drivers/staging/gdm72xx/ChangeLog
@@ -0,0 +1,88 @@
+v3.2.3
+ Patch for the message "NOHZ: local_softirq_pending 08" not to be printed.
+ Add code for WiMAX2. To use WiMAX2, change CONFIG_WIMAX2 in Makefile from
+ 'n' to 'y'.
+
+v3.2.2
+ Remaining data is padded with 4bytes in send_sdio_pkt().
+ Remove warning message that is printed when netlink_send API is called.
+ Change scheduling of RX traffic.
+ Support Linux Kernel 2.6.38.
+
+v3.2.1
+ Handle SDU RXs in aggregated SDU RX one by one.
+ Check the validity of the gap between SDU TXs.
+
+v3.2.0
+ Change internal architecture of ioctl.
+ Add debug code for sdu.
+ SDIO packet aggregation for SDU.
+ Support K_mode Scan.
+
+v.3.1.3
+ Fix a bug that complete_info is not freed when device is removed.
+ In gdm_wimax_ioctl_set_data function, if the size requested is the same
+ with nic's data buffer size, the buffer is used again without re-allocation.
+
+v.3.1.2
+ Change the function name of handle_irq to gdm_sdio_irq.
+ In the kernel whose version is greater than 2.6.27, provide net_device
+ net_device_ops variable instead of operation functions.
+
+v.3.1.1
+ Support indicating network interface up/down.
+ If the HCI to let driver stop sending SDU comes from wimax device, cancel
+ all pending SDU tx. If the HCI to let drvier resume sending SDU comes from
+ wimax, send all pending SDU tx.
+ Fix a bug that SDU TX request arrives when there is no avialable tx
+ buffer.
+
+V.3.1.0
+ Support USB Selective Suspend.
+ Fix a bug in SDIO module that spin lock is not unreleased after spin lock
+ is locked.
+
+v.3.0.4
+ In big-endian system, FW loading do not work.
+
+v.3.0.3
+ If the Type-A type of a received packet through SDIO is 2, discard
+ the first 4-bytes of data part.
+
+v.3.0.2
+ Support setting/getting profile-ID.
+
+v.3.0.1
+ Fix a bug that PID's composite bit is not cleared.
+
+v.3.0
+ Remove the code to check the id of a image. This code is valid only for
+ the FW whose VID is GCT's.
+
+v.2.1.2
+ Support setting/getting connection-complte information.
+
+v.2.1.1
+ Fix how to calculate the index of wimax device.
+
+v.2.1
+ Fix a bug that CM is not working on Big-Endian machine.
+
+v.2.0
+ New host interface, SDIO is available.
+
+v.1.1
+ Support emergency downloading f/w.
+
+v.1.0
+ Change HCI interface from netdevive socket to netlink socket.
+
+v.0.2
+ Manage TX buffer.
+
+v.0.1.1
+ Bugfix:
+ 1. System is locked up when device is removed in kernel v.2.4.
+ 2. System is locked up when cm is executed.
+v.0.1
+ First update
diff --git a/drivers/staging/gdm72xx/Kconfig b/drivers/staging/gdm72xx/Kconfig
new file mode 100644
index 0000000..5c37cba
--- /dev/null
+++ b/drivers/staging/gdm72xx/Kconfig
@@ -0,0 +1,45 @@
+#
+# GCT GDM72xx WiMAX driver configuration
+#
+
+menuconfig WIMAX_GDM72XX
+ tristate "GCT GDM72xx WiMAX support"
+ help
+ Support for the GCT GDM72xx WiMAX chip
+
+if WIMAX_GDM72XX
+
+config WIMAX_GDM72XX_QOS
+ bool "Enable QoS support"
+ default n
+
+config WIMAX_GDM72XX_K_MODE
+ bool "Enable K mode"
+ default n
+
+config WIMAX_GDM72XX_WIMAX2
+ bool "Enable WIMAX2 support"
+ default n
+
+choice
+ prompt "Select interface"
+
+config WIMAX_GDM72XX_USB
+ bool "USB interface"
+ depends on USB
+
+config WIMAX_GDM72XX_SDIO
+ bool "SDIO interface"
+ depends on MMC
+
+endchoice
+
+if WIMAX_GDM72XX_USB
+
+config WIMAX_GDM72XX_USB_PM
+ bool "Enable power managerment support"
+ default n
+
+endif # WIMAX_GDM72XX_USB
+
+endif # WIMAX_GDM72XX
diff --git a/drivers/staging/gdm72xx/LICENSE b/drivers/staging/gdm72xx/LICENSE
new file mode 100644
index 0000000..99154af
--- /dev/null
+++ b/drivers/staging/gdm72xx/LICENSE
@@ -0,0 +1,26 @@
+Copyright (c) 2012, GCT Semiconductor, Inc. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+ * Neither the name of GCT Semiconductor, Inc. nor
+ the names of its contributors may be used to endorse or promote
+ products derived from this software without specific prior written
+ permission.
+
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
diff --git a/drivers/staging/gdm72xx/Makefile b/drivers/staging/gdm72xx/Makefile
new file mode 100644
index 0000000..35da7b9
--- /dev/null
+++ b/drivers/staging/gdm72xx/Makefile
@@ -0,0 +1,6 @@
+obj-$(CONFIG_WIMAX_GDM72XX) := gdmwm.o
+
+gdmwm-y += gdm_wimax.o netlink_k.o
+gdmwm-$(CONFIG_WIMAX_GDM72XX_QOS) += gdm_qos.o
+gdmwm-$(CONFIG_WIMAX_GDM72XX_SDIO) += gdm_sdio.o sdio_boot.o
+gdmwm-$(CONFIG_WIMAX_GDM72XX_USB) += gdm_usb.o usb_boot.o
diff --git a/drivers/staging/gdm72xx/TODO b/drivers/staging/gdm72xx/TODO
new file mode 100644
index 0000000..30ac01a
--- /dev/null
+++ b/drivers/staging/gdm72xx/TODO
@@ -0,0 +1,5 @@
+TODO:
+- Replace kernel_thread with kthread in gdm_usb.c
+- Replace hard-coded firmware paths with request_firmware in
+ sdio_boot.c and usb_boot.c
+- Clean up coding style to meet kernel standard.
diff --git a/drivers/staging/gdm72xx/gdm_qos.c b/drivers/staging/gdm72xx/gdm_qos.c
new file mode 100644
index 0000000..2047d23
--- /dev/null
+++ b/drivers/staging/gdm72xx/gdm_qos.c
@@ -0,0 +1,453 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <linux/version.h>
+#include <linux/etherdevice.h>
+#include <asm/byteorder.h>
+
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/if_ether.h>
+
+#include "gdm_wimax.h"
+#include "hci.h"
+#include "gdm_qos.h"
+
+#define B2H(x) __be16_to_cpu(x)
+
+#undef dprintk
+#define dprintk(fmt, args ...) printk(KERN_DEBUG "[QoS] " fmt, ## args)
+#undef wprintk
+#define wprintk(fmt, args ...) \
+ printk(KERN_WARNING "[QoS WARNING] " fmt, ## args)
+#undef eprintk
+#define eprintk(fmt, args ...) printk(KERN_ERR "[QoS ERROR] " fmt, ## args)
+
+
+#define MAX_FREE_LIST_CNT 32
+static struct {
+ struct list_head head;
+ int cnt;
+ spinlock_t lock;
+} qos_free_list;
+
+static void init_qos_entry_list(void)
+{
+ qos_free_list.cnt = 0;
+ INIT_LIST_HEAD(&qos_free_list.head);
+ spin_lock_init(&qos_free_list.lock);
+}
+
+static void *alloc_qos_entry(void)
+{
+ struct qos_entry_s *entry;
+ unsigned long flags;
+
+ spin_lock_irqsave(&qos_free_list.lock, flags);
+ if (qos_free_list.cnt) {
+ entry = list_entry(qos_free_list.head.prev, struct qos_entry_s,
+ list);
+ list_del(&entry->list);
+ qos_free_list.cnt--;
+ spin_unlock_irqrestore(&qos_free_list.lock, flags);
+ return entry;
+ }
+ spin_unlock_irqrestore(&qos_free_list.lock, flags);
+
+ entry = kmalloc(sizeof(struct qos_entry_s), GFP_ATOMIC);
+ return entry;
+}
+
+static void free_qos_entry(void *entry)
+{
+ struct qos_entry_s *qentry = (struct qos_entry_s *) entry;
+ unsigned long flags;
+
+ spin_lock_irqsave(&qos_free_list.lock, flags);
+ if (qos_free_list.cnt < MAX_FREE_LIST_CNT) {
+ list_add(&qentry->list, &qos_free_list.head);
+ qos_free_list.cnt++;
+ spin_unlock_irqrestore(&qos_free_list.lock, flags);
+ return;
+ }
+ spin_unlock_irqrestore(&qos_free_list.lock, flags);
+
+ kfree(entry);
+}
+
+static void free_qos_entry_list(struct list_head *free_list)
+{
+ struct qos_entry_s *entry, *n;
+ int total_free = 0;
+
+ list_for_each_entry_safe(entry, n, free_list, list) {
+ list_del(&entry->list);
+ kfree(entry);
+ total_free++;
+ }
+
+ dprintk("%s: total_free_cnt=%d\n", __func__, total_free);
+}
+
+void gdm_qos_init(void *nic_ptr)
+{
+ struct nic *nic = nic_ptr;
+ struct qos_cb_s *qcb = &nic->qos;
+ int i;
+
+ for (i = 0 ; i < QOS_MAX; i++) {
+ INIT_LIST_HEAD(&qcb->qos_list[i]);
+ qcb->csr[i].QoSBufCount = 0;
+ qcb->csr[i].Enabled = 0;
+ }
+
+ qcb->qos_list_cnt = 0;
+ qcb->qos_null_idx = QOS_MAX-1;
+ qcb->qos_limit_size = 255;
+
+ spin_lock_init(&qcb->qos_lock);
+
+ init_qos_entry_list();
+}
+
+void gdm_qos_release_list(void *nic_ptr)
+{
+ struct nic *nic = nic_ptr;
+ struct qos_cb_s *qcb = &nic->qos;
+ unsigned long flags;
+ struct qos_entry_s *entry, *n;
+ struct list_head free_list;
+ int i;
+
+ INIT_LIST_HEAD(&free_list);
+
+ spin_lock_irqsave(&qcb->qos_lock, flags);
+
+ for (i = 0; i < QOS_MAX; i++) {
+ qcb->csr[i].QoSBufCount = 0;
+ qcb->csr[i].Enabled = 0;
+ }
+
+ qcb->qos_list_cnt = 0;
+ qcb->qos_null_idx = QOS_MAX-1;
+
+ for (i = 0; i < QOS_MAX; i++) {
+ list_for_each_entry_safe(entry, n, &qcb->qos_list[i], list) {
+ list_move_tail(&entry->list, &free_list);
+ }
+ }
+ spin_unlock_irqrestore(&qcb->qos_lock, flags);
+ free_qos_entry_list(&free_list);
+}
+
+static u32 chk_ipv4_rule(struct gdm_wimax_csr_s *csr, u8 *Stream, u8 *port)
+{
+ int i;
+
+ if (csr->ClassifierRuleEnable&IPTYPEOFSERVICE) {
+ if (((Stream[1] & csr->IPToSMask) < csr->IPToSLow) ||
+ ((Stream[1] & csr->IPToSMask) > csr->IPToSHigh))
+ return 1;
+ }
+
+ if (csr->ClassifierRuleEnable&PROTOCOL) {
+ if (Stream[9] != csr->Protocol)
+ return 1;
+ }
+
+ if (csr->ClassifierRuleEnable&IPMASKEDSRCADDRESS) {
+ for (i = 0; i < 4; i++) {
+ if ((Stream[12 + i] & csr->IPSrcAddrMask[i]) !=
+ (csr->IPSrcAddr[i] & csr->IPSrcAddrMask[i]))
+ return 1;
+ }
+ }
+
+ if (csr->ClassifierRuleEnable&IPMASKEDDSTADDRESS) {
+ for (i = 0; i < 4; i++) {
+ if ((Stream[16 + i] & csr->IPDstAddrMask[i]) !=
+ (csr->IPDstAddr[i] & csr->IPDstAddrMask[i]))
+ return 1;
+ }
+ }
+
+ if (csr->ClassifierRuleEnable&PROTOCOLSRCPORTRANGE) {
+ i = ((port[0]<<8)&0xff00)+port[1];
+ if ((i < csr->SrcPortLow) || (i > csr->SrcPortHigh))
+ return 1;
+ }
+
+ if (csr->ClassifierRuleEnable&PROTOCOLDSTPORTRANGE) {
+ i = ((port[2]<<8)&0xff00)+port[3];
+ if ((i < csr->DstPortLow) || (i > csr->DstPortHigh))
+ return 1;
+ }
+
+ return 0;
+}
+
+static u32 get_qos_index(struct nic *nic, u8* iph, u8* tcpudph)
+{
+ u32 IP_Ver, Header_Len, i;
+ struct qos_cb_s *qcb = &nic->qos;
+
+ if (iph == NULL || tcpudph == NULL)
+ return -1;
+
+ IP_Ver = (iph[0]>>4)&0xf;
+ Header_Len = iph[0]&0xf;
+
+ if (IP_Ver == 4) {
+ for (i = 0; i < QOS_MAX; i++) {
+ if (qcb->csr[i].Enabled) {
+ if (qcb->csr[i].ClassifierRuleEnable) {
+ if (chk_ipv4_rule(&qcb->csr[i], iph,
+ tcpudph) == 0)
+ return i;
+ }
+ }
+ }
+ }
+
+ return -1;
+}
+
+static u32 extract_qos_list(struct nic *nic, struct list_head *head)
+{
+ struct qos_cb_s *qcb = &nic->qos;
+ struct qos_entry_s *entry;
+ int i;
+
+ INIT_LIST_HEAD(head);
+
+ for (i = 0; i < QOS_MAX; i++) {
+ if (qcb->csr[i].Enabled) {
+ if (qcb->csr[i].QoSBufCount < qcb->qos_limit_size) {
+ if (!list_empty(&qcb->qos_list[i])) {
+ entry = list_entry(
+ qcb->qos_list[i].prev,
+ struct qos_entry_s, list);
+ list_move_tail(&entry->list, head);
+ qcb->csr[i].QoSBufCount++;
+
+ if (!list_empty(&qcb->qos_list[i]))
+ wprintk("QoS Index(%d) "
+ "is piled!!\n", i);
+ }
+ }
+ }
+ }
+
+ return 0;
+}
+
+static void send_qos_list(struct nic *nic, struct list_head *head)
+{
+ struct qos_entry_s *entry, *n;
+
+ list_for_each_entry_safe(entry, n, head, list) {
+ list_del(&entry->list);
+ free_qos_entry(entry);
+ gdm_wimax_send_tx(entry->skb, entry->dev);
+ }
+}
+
+int gdm_qos_send_hci_pkt(struct sk_buff *skb, struct net_device *dev)
+{
+ struct nic *nic = netdev_priv(dev);
+ int index;
+ struct qos_cb_s *qcb = &nic->qos;
+ unsigned long flags;
+ struct ethhdr *ethh = (struct ethhdr *) (skb->data + HCI_HEADER_SIZE);
+ struct iphdr *iph = (struct iphdr *) ((char *) ethh + ETH_HLEN);
+ struct tcphdr *tcph;
+ struct qos_entry_s *entry = NULL;
+ struct list_head send_list;
+ int ret = 0;
+
+ tcph = (struct tcphdr *) iph + iph->ihl*4;
+
+ if (B2H(ethh->h_proto) == ETH_P_IP) {
+ if (qcb->qos_list_cnt && !qos_free_list.cnt) {
+ entry = alloc_qos_entry();
+ entry->skb = skb;
+ entry->dev = dev;
+ dprintk("qcb->qos_list_cnt=%d\n", qcb->qos_list_cnt);
+ }
+
+ spin_lock_irqsave(&qcb->qos_lock, flags);
+ if (qcb->qos_list_cnt) {
+ index = get_qos_index(nic, (u8 *)iph, (u8 *) tcph);
+ if (index == -1)
+ index = qcb->qos_null_idx;
+
+ if (!entry) {
+ entry = alloc_qos_entry();
+ entry->skb = skb;
+ entry->dev = dev;
+ }
+
+ list_add_tail(&entry->list, &qcb->qos_list[index]);
+ extract_qos_list(nic, &send_list);
+ spin_unlock_irqrestore(&qcb->qos_lock, flags);
+ send_qos_list(nic, &send_list);
+ goto out;
+ }
+ spin_unlock_irqrestore(&qcb->qos_lock, flags);
+ if (entry)
+ free_qos_entry(entry);
+ }
+
+ ret = gdm_wimax_send_tx(skb, dev);
+out:
+ return ret;
+}
+
+static u32 get_csr(struct qos_cb_s *qcb, u32 SFID, int mode)
+{
+ int i;
+
+ for (i = 0; i < qcb->qos_list_cnt; i++) {
+ if (qcb->csr[i].SFID == SFID)
+ return i;
+ }
+
+ if (mode) {
+ for (i = 0; i < QOS_MAX; i++) {
+ if (qcb->csr[i].Enabled == 0) {
+ qcb->csr[i].Enabled = 1;
+ qcb->qos_list_cnt++;
+ return i;
+ }
+ }
+ }
+ return -1;
+}
+
+#define QOS_CHANGE_DEL 0xFC
+#define QOS_ADD 0xFD
+#define QOS_REPORT 0xFE
+
+void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size)
+{
+ struct nic *nic = nic_ptr;
+ u32 i, SFID, index, pos;
+ u8 subCmdEvt;
+ u8 len;
+ struct qos_cb_s *qcb = &nic->qos;
+ struct qos_entry_s *entry, *n;
+ struct list_head send_list;
+ struct list_head free_list;
+ unsigned long flags;
+
+ subCmdEvt = (u8)buf[4];
+
+ if (subCmdEvt == QOS_REPORT) {
+ len = (u8)buf[5];
+
+ spin_lock_irqsave(&qcb->qos_lock, flags);
+ for (i = 0; i < qcb->qos_list_cnt; i++) {
+ SFID = ((buf[(i*5)+6]<<24)&0xff000000);
+ SFID += ((buf[(i*5)+7]<<16)&0xff0000);
+ SFID += ((buf[(i*5)+8]<<8)&0xff00);
+ SFID += (buf[(i*5)+9]);
+ index = get_csr(qcb, SFID, 0);
+ if (index == -1) {
+ spin_unlock_irqrestore(&qcb->qos_lock, flags);
+ eprintk("QoS ERROR: No SF\n");
+ return;
+ }
+ qcb->csr[index].QoSBufCount = buf[(i*5)+10];
+ }
+
+ extract_qos_list(nic, &send_list);
+ spin_unlock_irqrestore(&qcb->qos_lock, flags);
+ send_qos_list(nic, &send_list);
+ return;
+ } else if (subCmdEvt == QOS_ADD) {
+ pos = 5;
+ len = (u8)buf[pos++];
+
+ SFID = ((buf[pos++]<<24)&0xff000000);
+ SFID += ((buf[pos++]<<16)&0xff0000);
+ SFID += ((buf[pos++]<<8)&0xff00);
+ SFID += (buf[pos++]);
+
+ index = get_csr(qcb, SFID, 1);
+ if (index == -1) {
+ eprintk("QoS ERROR: csr Update Error\n");
+ return;
+ }
+
+ dprintk("QOS_ADD SFID = 0x%x, index=%d\n", SFID, index);
+
+ spin_lock_irqsave(&qcb->qos_lock, flags);
+ qcb->csr[index].SFID = SFID;
+ qcb->csr[index].ClassifierRuleEnable = ((buf[pos++]<<8)&0xff00);
+ qcb->csr[index].ClassifierRuleEnable += buf[pos++];
+ if (qcb->csr[index].ClassifierRuleEnable == 0)
+ qcb->qos_null_idx = index;
+ qcb->csr[index].IPToSMask = buf[pos++];
+ qcb->csr[index].IPToSLow = buf[pos++];
+ qcb->csr[index].IPToSHigh = buf[pos++];
+ qcb->csr[index].Protocol = buf[pos++];
+ qcb->csr[index].IPSrcAddrMask[0] = buf[pos++];
+ qcb->csr[index].IPSrcAddrMask[1] = buf[pos++];
+ qcb->csr[index].IPSrcAddrMask[2] = buf[pos++];
+ qcb->csr[index].IPSrcAddrMask[3] = buf[pos++];
+ qcb->csr[index].IPSrcAddr[0] = buf[pos++];
+ qcb->csr[index].IPSrcAddr[1] = buf[pos++];
+ qcb->csr[index].IPSrcAddr[2] = buf[pos++];
+ qcb->csr[index].IPSrcAddr[3] = buf[pos++];
+ qcb->csr[index].IPDstAddrMask[0] = buf[pos++];
+ qcb->csr[index].IPDstAddrMask[1] = buf[pos++];
+ qcb->csr[index].IPDstAddrMask[2] = buf[pos++];
+ qcb->csr[index].IPDstAddrMask[3] = buf[pos++];
+ qcb->csr[index].IPDstAddr[0] = buf[pos++];
+ qcb->csr[index].IPDstAddr[1] = buf[pos++];
+ qcb->csr[index].IPDstAddr[2] = buf[pos++];
+ qcb->csr[index].IPDstAddr[3] = buf[pos++];
+ qcb->csr[index].SrcPortLow = ((buf[pos++]<<8)&0xff00);
+ qcb->csr[index].SrcPortLow += buf[pos++];
+ qcb->csr[index].SrcPortHigh = ((buf[pos++]<<8)&0xff00);
+ qcb->csr[index].SrcPortHigh += buf[pos++];
+ qcb->csr[index].DstPortLow = ((buf[pos++]<<8)&0xff00);
+ qcb->csr[index].DstPortLow += buf[pos++];
+ qcb->csr[index].DstPortHigh = ((buf[pos++]<<8)&0xff00);
+ qcb->csr[index].DstPortHigh += buf[pos++];
+
+ qcb->qos_limit_size = 254/qcb->qos_list_cnt;
+ spin_unlock_irqrestore(&qcb->qos_lock, flags);
+ } else if (subCmdEvt == QOS_CHANGE_DEL) {
+ pos = 5;
+ len = (u8)buf[pos++];
+ SFID = ((buf[pos++]<<24)&0xff000000);
+ SFID += ((buf[pos++]<<16)&0xff0000);
+ SFID += ((buf[pos++]<<8)&0xff00);
+ SFID += (buf[pos++]);
+ index = get_csr(qcb, SFID, 1);
+ if (index == -1) {
+ eprintk("QoS ERROR: Wrong index(%d)\n", index);
+ return;
+ }
+
+ dprintk("QOS_CHANGE_DEL SFID = 0x%x, index=%d\n", SFID, index);
+
+ INIT_LIST_HEAD(&free_list);
+
+ spin_lock_irqsave(&qcb->qos_lock, flags);
+ qcb->csr[index].Enabled = 0;
+ qcb->qos_list_cnt--;
+ qcb->qos_limit_size = 254/qcb->qos_list_cnt;
+
+ list_for_each_entry_safe(entry, n, &qcb->qos_list[index],
+ list) {
+ list_move_tail(&entry->list, &free_list);
+ }
+ spin_unlock_irqrestore(&qcb->qos_lock, flags);
+ free_qos_entry_list(&free_list);
+ }
+}
diff --git a/drivers/staging/gdm72xx/gdm_qos.h b/drivers/staging/gdm72xx/gdm_qos.h
new file mode 100644
index 0000000..8fc3ba2
--- /dev/null
+++ b/drivers/staging/gdm72xx/gdm_qos.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#if !defined(GDM_QOS_H_20090403)
+#define GDM_QOS_H_20090403
+
+#include <linux/types.h>
+#include <linux/usb.h>
+#include <linux/list.h>
+
+#define BOOLEAN u8
+
+#define QOS_MAX 16
+#define IPTYPEOFSERVICE 0x8000
+#define PROTOCOL 0x4000
+#define IPMASKEDSRCADDRESS 0x2000
+#define IPMASKEDDSTADDRESS 0x1000
+#define PROTOCOLSRCPORTRANGE 0x800
+#define PROTOCOLDSTPORTRANGE 0x400
+#define DSTMACADDR 0x200
+#define SRCMACADDR 0x100
+#define ETHERTYPE 0x80
+#define IEEE802_1DUSERPRIORITY 0x40
+#define IEEE802_1QVLANID 0x10
+
+struct gdm_wimax_csr_s {
+ /* union{
+ U16 all;
+ struct _CS_CLASSIFIER_RULE_ENABLE{
+ IPTypeOfService:1,
+ Protocol:1,
+ IPMaskedSrcAddress:1,
+ IPMaskedDstAddress:1,
+ ProtocolSrcPortRange:1,
+ ProtocolDstPortRange:1,
+ DstMacAddr:1,
+ SrcMacAddr:1,
+ Ethertype:1,
+ IEEE802_1DUserPriority:1,
+ IEEE802_1QVLANID:1,
+ Reserved:5;
+ } fields;
+ } */
+ BOOLEAN Enabled;
+ u32 SFID;
+ u8 QoSBufCount;
+ u16 ClassifierRuleEnable;
+ u8 IPToSLow;
+ u8 IPToSHigh;
+ u8 IPToSMask;
+ u8 Protocol;
+ u8 IPSrcAddr[16];
+ u8 IPSrcAddrMask[16];
+ u8 IPDstAddr[16];
+ u8 IPDstAddrMask[16];
+ u16 SrcPortLow;
+ u16 SrcPortHigh;
+ u16 DstPortLow;
+ u16 DstPortHigh;
+};
+
+struct qos_entry_s {
+ struct list_head list;
+ struct sk_buff *skb;
+ struct net_device *dev;
+
+};
+
+struct qos_cb_s {
+ struct list_head qos_list[QOS_MAX];
+ u32 qos_list_cnt;
+ u32 qos_null_idx;
+ struct gdm_wimax_csr_s csr[QOS_MAX];
+ spinlock_t qos_lock;
+ u32 qos_limit_size;
+};
+
+void gdm_qos_init(void *nic_ptr);
+void gdm_qos_release_list(void *nic_ptr);
+int gdm_qos_send_hci_pkt(struct sk_buff *skb, struct net_device *dev);
+void gdm_recv_qos_hci_packet(void *nic_ptr, u8 *buf, int size);
+
+#endif
diff --git a/drivers/staging/gdm72xx/gdm_sdio.c b/drivers/staging/gdm72xx/gdm_sdio.c
new file mode 100644
index 0000000..1eef5fd
--- /dev/null
+++ b/drivers/staging/gdm72xx/gdm_sdio.c
@@ -0,0 +1,747 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/version.h>
+
+#include <linux/mmc/core.h>
+#include <linux/mmc/card.h>
+#include <linux/mmc/sdio_func.h>
+#include <linux/mmc/sdio_ids.h>
+
+#include "gdm_sdio.h"
+#include "gdm_wimax.h"
+#include "sdio_boot.h"
+#include "hci.h"
+
+#define TYPE_A_HEADER_SIZE 4
+#define TYPE_A_LOOKAHEAD_SIZE 16
+
+#define MAX_NR_RX_BUF 4
+
+#define SDU_TX_BUF_SIZE 2048
+#define TX_BUF_SIZE 2048
+#define TX_CHUNK_SIZE (2048 - TYPE_A_HEADER_SIZE)
+#define RX_BUF_SIZE (25*1024)
+
+#define TX_HZ 2000
+#define TX_INTERVAL (1000000/TX_HZ)
+
+/*#define DEBUG*/
+
+static int init_sdio(struct sdiowm_dev *sdev);
+static void release_sdio(struct sdiowm_dev *sdev);
+
+#ifdef DEBUG
+static void hexdump(char *title, u8 *data, int len)
+{
+ int i;
+
+ printk(KERN_DEBUG "%s: length = %d\n", title, len);
+ for (i = 0; i < len; i++) {
+ printk(KERN_DEBUG "%02x ", data[i]);
+ if ((i & 0xf) == 0xf)
+ printk(KERN_DEBUG "\n");
+ }
+ printk(KERN_DEBUG "\n");
+}
+#endif
+
+static struct sdio_tx *alloc_tx_struct(struct tx_cxt *tx)
+{
+ struct sdio_tx *t = NULL;
+
+ t = kmalloc(sizeof(*t), GFP_ATOMIC);
+ if (t == NULL)
+ goto out;
+
+ memset(t, 0, sizeof(*t));
+
+ t->buf = kmalloc(TX_BUF_SIZE, GFP_ATOMIC);
+ if (t->buf == NULL)
+ goto out;
+
+ t->tx_cxt = tx;
+
+ return t;
+out:
+ if (t) {
+ kfree(t->buf);
+ kfree(t);
+ }
+ return NULL;
+}
+
+static void free_tx_struct(struct sdio_tx *t)
+{
+ if (t) {
+ kfree(t->buf);
+ kfree(t);
+ }
+}
+
+static struct sdio_rx *alloc_rx_struct(struct rx_cxt *rx)
+{
+ struct sdio_rx *r = NULL;
+
+ r = kmalloc(sizeof(*r), GFP_ATOMIC);
+ if (r == NULL)
+ goto out;
+
+ memset(r, 0, sizeof(*r));
+
+ r->rx_cxt = rx;
+
+ return r;
+out:
+ kfree(r);
+ return NULL;
+}
+
+static void free_rx_struct(struct sdio_rx *r)
+{
+ kfree(r);
+}
+
+/* Before this function is called, spin lock should be locked. */
+static struct sdio_tx *get_tx_struct(struct tx_cxt *tx, int *no_spc)
+{
+ struct sdio_tx *t;
+
+ if (list_empty(&tx->free_list))
+ return NULL;
+
+ t = list_entry(tx->free_list.prev, struct sdio_tx, list);
+ list_del(&t->list);
+
+ *no_spc = list_empty(&tx->free_list) ? 1 : 0;
+
+ return t;
+}
+
+/* Before this function is called, spin lock should be locked. */
+static void put_tx_struct(struct tx_cxt *tx, struct sdio_tx *t)
+{
+ list_add_tail(&t->list, &tx->free_list);
+}
+
+/* Before this function is called, spin lock should be locked. */
+static struct sdio_rx *get_rx_struct(struct rx_cxt *rx)
+{
+ struct sdio_rx *r;
+
+ if (list_empty(&rx->free_list))
+ return NULL;
+
+ r = list_entry(rx->free_list.prev, struct sdio_rx, list);
+ list_del(&r->list);
+
+ return r;
+}
+
+/* Before this function is called, spin lock should be locked. */
+static void put_rx_struct(struct rx_cxt *rx, struct sdio_rx *r)
+{
+ list_add_tail(&r->list, &rx->free_list);
+}
+
+static int init_sdio(struct sdiowm_dev *sdev)
+{
+ int ret = 0, i;
+ struct tx_cxt *tx = &sdev->tx;
+ struct rx_cxt *rx = &sdev->rx;
+ struct sdio_tx *t;
+ struct sdio_rx *r;
+
+ INIT_LIST_HEAD(&tx->free_list);
+ INIT_LIST_HEAD(&tx->sdu_list);
+ INIT_LIST_HEAD(&tx->hci_list);
+
+ spin_lock_init(&tx->lock);
+
+ tx->sdu_buf = kmalloc(SDU_TX_BUF_SIZE, GFP_KERNEL);
+ if (tx->sdu_buf == NULL) {
+ printk(KERN_ERR "Failed to allocate SDU tx buffer.\n");
+ goto fail;
+ }
+
+ for (i = 0; i < MAX_NR_SDU_BUF; i++) {
+ t = alloc_tx_struct(tx);
+ if (t == NULL) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+ list_add(&t->list, &tx->free_list);
+ }
+
+ INIT_LIST_HEAD(&rx->free_list);
+ INIT_LIST_HEAD(&rx->req_list);
+
+ spin_lock_init(&rx->lock);
+
+ for (i = 0; i < MAX_NR_RX_BUF; i++) {
+ r = alloc_rx_struct(rx);
+ if (r == NULL) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+ list_add(&r->list, &rx->free_list);
+ }
+
+ rx->rx_buf = kmalloc(RX_BUF_SIZE, GFP_KERNEL);
+ if (rx->rx_buf == NULL) {
+ printk(KERN_ERR "Failed to allocate rx buffer.\n");
+ goto fail;
+ }
+
+ return 0;
+
+fail:
+ release_sdio(sdev);
+ return ret;
+}
+
+static void release_sdio(struct sdiowm_dev *sdev)
+{
+ struct tx_cxt *tx = &sdev->tx;
+ struct rx_cxt *rx = &sdev->rx;
+ struct sdio_tx *t, *t_next;
+ struct sdio_rx *r, *r_next;
+
+ kfree(tx->sdu_buf);
+
+ list_for_each_entry_safe(t, t_next, &tx->free_list, list) {
+ list_del(&t->list);
+ free_tx_struct(t);
+ }
+
+ list_for_each_entry_safe(t, t_next, &tx->sdu_list, list) {
+ list_del(&t->list);
+ free_tx_struct(t);
+ }
+
+ list_for_each_entry_safe(t, t_next, &tx->hci_list, list) {
+ list_del(&t->list);
+ free_tx_struct(t);
+ }
+
+ kfree(rx->rx_buf);
+
+ list_for_each_entry_safe(r, r_next, &rx->free_list, list) {
+ list_del(&r->list);
+ free_rx_struct(r);
+ }
+
+ list_for_each_entry_safe(r, r_next, &rx->req_list, list) {
+ list_del(&r->list);
+ free_rx_struct(r);
+ }
+}
+
+static void send_sdio_pkt(struct sdio_func *func, u8 *data, int len)
+{
+ int n, blocks, ret, remain;
+
+ sdio_claim_host(func);
+
+ blocks = len / func->cur_blksize;
+ n = blocks * func->cur_blksize;
+ if (blocks) {
+ ret = sdio_memcpy_toio(func, 0, data, n);
+ if (ret < 0) {
+ if (ret != -ENOMEDIUM)
+ printk(KERN_ERR "gdmwms: %s error: ret = %d\n",
+ __func__, ret);
+ goto end_io;
+ }
+ }
+
+ remain = len - n;
+ remain = (remain + 3) & ~3;
+
+ if (remain) {
+ ret = sdio_memcpy_toio(func, 0, data + n, remain);
+ if (ret < 0) {
+ if (ret != -ENOMEDIUM)
+ printk(KERN_ERR "gdmwms: %s error: ret = %d\n",
+ __func__, ret);
+ goto end_io;
+ }
+ }
+
+end_io:
+ sdio_release_host(func);
+}
+
+static void send_sdu(struct sdio_func *func, struct tx_cxt *tx)
+{
+ struct list_head *l, *next;
+ struct hci_s *hci;
+ struct sdio_tx *t;
+ int pos, len, i, estlen, aggr_num = 0, aggr_len;
+ u8 *buf;
+ unsigned long flags;
+
+ spin_lock_irqsave(&tx->lock, flags);
+
+ pos = TYPE_A_HEADER_SIZE + HCI_HEADER_SIZE;
+ list_for_each_entry(t, &tx->sdu_list, list) {
+ estlen = ((t->len + 3) & ~3) + 4;
+ if ((pos + estlen) > SDU_TX_BUF_SIZE)
+ break;
+
+ aggr_num++;
+ memcpy(tx->sdu_buf + pos, t->buf, t->len);
+ memset(tx->sdu_buf + pos + t->len, 0, estlen - t->len);
+ pos += estlen;
+ }
+ aggr_len = pos;
+
+ hci = (struct hci_s *)(tx->sdu_buf + TYPE_A_HEADER_SIZE);
+ hci->cmd_evt = H2B(WIMAX_TX_SDU_AGGR);
+ hci->length = H2B(aggr_len - TYPE_A_HEADER_SIZE - HCI_HEADER_SIZE);
+
+ spin_unlock_irqrestore(&tx->lock, flags);
+
+#ifdef DEBUG
+ hexdump("sdio_send", tx->sdu_buf + TYPE_A_HEADER_SIZE,
+ aggr_len - TYPE_A_HEADER_SIZE);
+#endif
+
+ for (pos = TYPE_A_HEADER_SIZE; pos < aggr_len; pos += TX_CHUNK_SIZE) {
+ len = aggr_len - pos;
+ len = len > TX_CHUNK_SIZE ? TX_CHUNK_SIZE : len;
+ buf = tx->sdu_buf + pos - TYPE_A_HEADER_SIZE;
+
+ buf[0] = len & 0xff;
+ buf[1] = (len >> 8) & 0xff;
+ buf[2] = (len >> 16) & 0xff;
+ buf[3] = (pos + len) >= aggr_len ? 0 : 1;
+ send_sdio_pkt(func, buf, len + TYPE_A_HEADER_SIZE);
+ }
+
+ spin_lock_irqsave(&tx->lock, flags);
+
+ for (l = tx->sdu_list.next, i = 0; i < aggr_num; i++, l = next) {
+ next = l->next;
+ t = list_entry(l, struct sdio_tx, list);
+ if (t->callback)
+ t->callback(t->cb_data);
+
+ list_del(l);
+ put_tx_struct(t->tx_cxt, t);
+ }
+
+ do_gettimeofday(&tx->sdu_stamp);
+ spin_unlock_irqrestore(&tx->lock, flags);
+}
+
+static void send_hci(struct sdio_func *func, struct tx_cxt *tx,
+ struct sdio_tx *t)
+{
+ unsigned long flags;
+
+#ifdef DEBUG
+ hexdump("sdio_send", t->buf + TYPE_A_HEADER_SIZE,
+ t->len - TYPE_A_HEADER_SIZE);
+#endif
+ send_sdio_pkt(func, t->buf, t->len);
+
+ spin_lock_irqsave(&tx->lock, flags);
+ if (t->callback)
+ t->callback(t->cb_data);
+ free_tx_struct(t);
+ spin_unlock_irqrestore(&tx->lock, flags);
+}
+
+static void do_tx(struct work_struct *work)
+{
+ struct sdiowm_dev *sdev = container_of(work, struct sdiowm_dev, ws);
+ struct sdio_func *func = sdev->func;
+ struct tx_cxt *tx = &sdev->tx;
+ struct sdio_tx *t = NULL;
+ struct timeval now, *before;
+ int is_sdu = 0;
+ long diff;
+ unsigned long flags;
+
+ spin_lock_irqsave(&tx->lock, flags);
+ if (!tx->can_send) {
+ spin_unlock_irqrestore(&tx->lock, flags);
+ return;
+ }
+
+ if (!list_empty(&tx->hci_list)) {
+ t = list_entry(tx->hci_list.next, struct sdio_tx, list);
+ list_del(&t->list);
+ is_sdu = 0;
+ } else if (!tx->stop_sdu_tx && !list_empty(&tx->sdu_list)) {
+ do_gettimeofday(&now);
+ before = &tx->sdu_stamp;
+
+ diff = (now.tv_sec - before->tv_sec) * 1000000 +
+ (now.tv_usec - before->tv_usec);
+ if (diff >= 0 && diff < TX_INTERVAL) {
+ schedule_work(&sdev->ws);
+ spin_unlock_irqrestore(&tx->lock, flags);
+ return;
+ }
+ is_sdu = 1;
+ }
+
+ if (!is_sdu && t == NULL) {
+ spin_unlock_irqrestore(&tx->lock, flags);
+ return;
+ }
+
+ tx->can_send = 0;
+
+ spin_unlock_irqrestore(&tx->lock, flags);
+
+ if (is_sdu)
+ send_sdu(func, tx);
+ else
+ send_hci(func, tx, t);
+}
+
+static int gdm_sdio_send(void *priv_dev, void *data, int len,
+ void (*cb)(void *data), void *cb_data)
+{
+ struct sdiowm_dev *sdev = priv_dev;
+ struct tx_cxt *tx = &sdev->tx;
+ struct sdio_tx *t;
+ u8 *pkt = data;
+ int no_spc = 0;
+ u16 cmd_evt;
+ unsigned long flags;
+
+ BUG_ON(len > TX_BUF_SIZE - TYPE_A_HEADER_SIZE);
+
+ spin_lock_irqsave(&tx->lock, flags);
+
+ cmd_evt = (pkt[0] << 8) | pkt[1];
+ if (cmd_evt == WIMAX_TX_SDU) {
+ t = get_tx_struct(tx, &no_spc);
+ if (t == NULL) {
+ /* This case must not happen. */
+ spin_unlock_irqrestore(&tx->lock, flags);
+ return -ENOSPC;
+ }
+ list_add_tail(&t->list, &tx->sdu_list);
+
+ memcpy(t->buf, data, len);
+
+ t->len = len;
+ t->callback = cb;
+ t->cb_data = cb_data;
+ } else {
+ t = alloc_tx_struct(tx);
+ if (t == NULL) {
+ spin_unlock_irqrestore(&tx->lock, flags);
+ return -ENOMEM;
+ }
+ list_add_tail(&t->list, &tx->hci_list);
+
+ t->buf[0] = len & 0xff;
+ t->buf[1] = (len >> 8) & 0xff;
+ t->buf[2] = (len >> 16) & 0xff;
+ t->buf[3] = 2;
+ memcpy(t->buf + TYPE_A_HEADER_SIZE, data, len);
+
+ t->len = len + TYPE_A_HEADER_SIZE;
+ t->callback = cb;
+ t->cb_data = cb_data;
+ }
+
+ if (tx->can_send)
+ schedule_work(&sdev->ws);
+
+ spin_unlock_irqrestore(&tx->lock, flags);
+
+ if (no_spc)
+ return -ENOSPC;
+
+ return 0;
+}
+
+/*
+ * Handle the HCI, WIMAX_SDU_TX_FLOW.
+ */
+static int control_sdu_tx_flow(struct sdiowm_dev *sdev, u8 *hci_data, int len)
+{
+ struct tx_cxt *tx = &sdev->tx;
+ u16 cmd_evt;
+ unsigned long flags;
+
+ spin_lock_irqsave(&tx->lock, flags);
+
+ cmd_evt = (hci_data[0] << 8) | (hci_data[1]);
+ if (cmd_evt != WIMAX_SDU_TX_FLOW)
+ goto out;
+
+ if (hci_data[4] == 0) {
+#ifdef DEBUG
+ printk(KERN_DEBUG "WIMAX ==> STOP SDU TX\n");
+#endif
+ tx->stop_sdu_tx = 1;
+ } else if (hci_data[4] == 1) {
+#ifdef DEBUG
+ printk(KERN_DEBUG "WIMAX ==> START SDU TX\n");
+#endif
+ tx->stop_sdu_tx = 0;
+ if (tx->can_send)
+ schedule_work(&sdev->ws);
+ /*
+ * If free buffer for sdu tx doesn't exist, then tx queue
+ * should not be woken. For this reason, don't pass the command,
+ * START_SDU_TX.
+ */
+ if (list_empty(&tx->free_list))
+ len = 0;
+ }
+
+out:
+ spin_unlock_irqrestore(&tx->lock, flags);
+ return len;
+}
+
+static void gdm_sdio_irq(struct sdio_func *func)
+{
+ struct phy_dev *phy_dev = sdio_get_drvdata(func);
+ struct sdiowm_dev *sdev = phy_dev->priv_dev;
+ struct tx_cxt *tx = &sdev->tx;
+ struct rx_cxt *rx = &sdev->rx;
+ struct sdio_rx *r;
+ unsigned long flags;
+ u8 val, hdr[TYPE_A_LOOKAHEAD_SIZE], *buf;
+ u32 len, blocks, n;
+ int ret, remain;
+
+ /* Check interrupt */
+ val = sdio_readb(func, 0x13, &ret);
+ if (val & 0x01)
+ sdio_writeb(func, 0x01, 0x13, &ret); /* clear interrupt */
+ else
+ return;
+
+ ret = sdio_memcpy_fromio(func, hdr, 0x0, TYPE_A_LOOKAHEAD_SIZE);
+ if (ret) {
+ printk(KERN_ERR "Cannot read from function %d\n", func->num);
+ goto done;
+ }
+
+ len = (hdr[2] << 16) | (hdr[1] << 8) | hdr[0];
+ if (len > (RX_BUF_SIZE - TYPE_A_HEADER_SIZE)) {
+ printk(KERN_ERR "Too big Type-A size: %d\n", len);
+ goto done;
+ }
+
+ if (hdr[3] == 1) { /* Ack */
+#ifdef DEBUG
+ u32 *ack_seq = (u32 *)&hdr[4];
+#endif
+ spin_lock_irqsave(&tx->lock, flags);
+ tx->can_send = 1;
+
+ if (!list_empty(&tx->sdu_list) || !list_empty(&tx->hci_list))
+ schedule_work(&sdev->ws);
+ spin_unlock_irqrestore(&tx->lock, flags);
+#ifdef DEBUG
+ printk(KERN_DEBUG "Ack... %0x\n", ntohl(*ack_seq));
+#endif
+ goto done;
+ }
+
+ memcpy(rx->rx_buf, hdr + TYPE_A_HEADER_SIZE,
+ TYPE_A_LOOKAHEAD_SIZE - TYPE_A_HEADER_SIZE);
+
+ buf = rx->rx_buf + TYPE_A_LOOKAHEAD_SIZE - TYPE_A_HEADER_SIZE;
+ remain = len - TYPE_A_LOOKAHEAD_SIZE + TYPE_A_HEADER_SIZE;
+ if (remain <= 0)
+ goto end_io;
+
+ blocks = remain / func->cur_blksize;
+
+ if (blocks) {
+ n = blocks * func->cur_blksize;
+ ret = sdio_memcpy_fromio(func, buf, 0x0, n);
+ if (ret) {
+ printk(KERN_ERR "Cannot read from function %d\n",
+ func->num);
+ goto done;
+ }
+ buf += n;
+ remain -= n;
+ }
+
+ if (remain) {
+ ret = sdio_memcpy_fromio(func, buf, 0x0, remain);
+ if (ret) {
+ printk(KERN_ERR "Cannot read from function %d\n",
+ func->num);
+ goto done;
+ }
+ }
+
+end_io:
+#ifdef DEBUG
+ hexdump("sdio_receive", rx->rx_buf, len);
+#endif
+ len = control_sdu_tx_flow(sdev, rx->rx_buf, len);
+
+ spin_lock_irqsave(&rx->lock, flags);
+
+ if (!list_empty(&rx->req_list)) {
+ r = list_entry(rx->req_list.next, struct sdio_rx, list);
+ spin_unlock_irqrestore(&rx->lock, flags);
+ if (r->callback)
+ r->callback(r->cb_data, rx->rx_buf, len);
+ spin_lock_irqsave(&rx->lock, flags);
+ list_del(&r->list);
+ put_rx_struct(rx, r);
+ }
+
+ spin_unlock_irqrestore(&rx->lock, flags);
+
+done:
+ sdio_writeb(func, 0x00, 0x10, &ret); /* PCRRT */
+ if (!phy_dev->netdev)
+ register_wimax_device(phy_dev);
+}
+
+static int gdm_sdio_receive(void *priv_dev,
+ void (*cb)(void *cb_data, void *data, int len),
+ void *cb_data)
+{
+ struct sdiowm_dev *sdev = priv_dev;
+ struct rx_cxt *rx = &sdev->rx;
+ struct sdio_rx *r;
+ unsigned long flags;
+
+ spin_lock_irqsave(&rx->lock, flags);
+ r = get_rx_struct(rx);
+ if (r == NULL) {
+ spin_unlock_irqrestore(&rx->lock, flags);
+ return -ENOMEM;
+ }
+
+ r->callback = cb;
+ r->cb_data = cb_data;
+
+ list_add_tail(&r->list, &rx->req_list);
+ spin_unlock_irqrestore(&rx->lock, flags);
+
+ return 0;
+}
+
+static int sdio_wimax_probe(struct sdio_func *func,
+ const struct sdio_device_id *id)
+{
+ int ret;
+ struct phy_dev *phy_dev = NULL;
+ struct sdiowm_dev *sdev = NULL;
+
+ printk(KERN_INFO "Found GDM SDIO VID = 0x%04x PID = 0x%04x...\n",
+ func->vendor, func->device);
+ printk(KERN_INFO "GCT WiMax driver version %s\n", DRIVER_VERSION);
+
+ sdio_claim_host(func);
+ sdio_enable_func(func);
+ sdio_claim_irq(func, gdm_sdio_irq);
+
+ ret = sdio_boot(func);
+ if (ret)
+ return ret;
+
+ phy_dev = kmalloc(sizeof(*phy_dev), GFP_KERNEL);
+ if (phy_dev == NULL) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ sdev = kmalloc(sizeof(*sdev), GFP_KERNEL);
+ if (sdev == NULL) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ memset(phy_dev, 0, sizeof(*phy_dev));
+ memset(sdev, 0, sizeof(*sdev));
+
+ phy_dev->priv_dev = (void *)sdev;
+ phy_dev->send_func = gdm_sdio_send;
+ phy_dev->rcv_func = gdm_sdio_receive;
+
+ ret = init_sdio(sdev);
+ if (sdev < 0)
+ goto out;
+
+ sdev->func = func;
+
+ sdio_writeb(func, 1, 0x14, &ret); /* Enable interrupt */
+ sdio_release_host(func);
+
+ INIT_WORK(&sdev->ws, do_tx);
+
+ sdio_set_drvdata(func, phy_dev);
+out:
+ if (ret) {
+ kfree(phy_dev);
+ kfree(sdev);
+ }
+
+ return ret;
+}
+
+static void sdio_wimax_remove(struct sdio_func *func)
+{
+ struct phy_dev *phy_dev = sdio_get_drvdata(func);
+ struct sdiowm_dev *sdev = phy_dev->priv_dev;
+
+ if (phy_dev->netdev)
+ unregister_wimax_device(phy_dev);
+ sdio_claim_host(func);
+ sdio_release_irq(func);
+ sdio_disable_func(func);
+ sdio_release_host(func);
+ release_sdio(sdev);
+
+ kfree(sdev);
+ kfree(phy_dev);
+}
+
+static const struct sdio_device_id sdio_wimax_ids[] = {
+ { SDIO_DEVICE(0x0296, 0x5347) },
+ {0}
+};
+
+MODULE_DEVICE_TABLE(sdio, sdio_wimax_ids);
+
+static struct sdio_driver sdio_wimax_driver = {
+ .probe = sdio_wimax_probe,
+ .remove = sdio_wimax_remove,
+ .name = "sdio_wimax",
+ .id_table = sdio_wimax_ids,
+};
+
+static int __init sdio_gdm_wimax_init(void)
+{
+ return sdio_register_driver(&sdio_wimax_driver);
+}
+
+static void __exit sdio_gdm_wimax_exit(void)
+{
+ sdio_unregister_driver(&sdio_wimax_driver);
+}
+
+module_init(sdio_gdm_wimax_init);
+module_exit(sdio_gdm_wimax_exit);
+
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_DESCRIPTION("GCT WiMax SDIO Device Driver");
+MODULE_AUTHOR("Ethan Park");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/gdm72xx/gdm_sdio.h b/drivers/staging/gdm72xx/gdm_sdio.h
new file mode 100644
index 0000000..c6ecc20
--- /dev/null
+++ b/drivers/staging/gdm72xx/gdm_sdio.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef __GDM_SDIO_H__
+#define __GDM_SDIO_H__
+
+#include <linux/types.h>
+#include <linux/time.h>
+
+#define MAX_NR_SDU_BUF 64
+
+struct sdio_tx {
+ struct list_head list;
+ struct tx_cxt *tx_cxt;
+
+ u8 *buf;
+ int len;
+
+ void (*callback)(void *cb_data);
+ void *cb_data;
+};
+
+struct tx_cxt {
+ struct list_head free_list;
+ struct list_head sdu_list;
+ struct list_head hci_list;
+ struct timeval sdu_stamp;
+
+ u8 *sdu_buf;
+
+ spinlock_t lock;
+ int can_send;
+ int stop_sdu_tx;
+};
+
+struct sdio_rx {
+ struct list_head list;
+ struct rx_cxt *rx_cxt;
+
+ void (*callback)(void *cb_data, void *data, int len);
+ void *cb_data;
+};
+
+struct rx_cxt {
+ struct list_head free_list;
+ struct list_head req_list;
+
+ u8 *rx_buf;
+
+ spinlock_t lock;
+};
+
+struct sdiowm_dev {
+ struct sdio_func *func;
+
+ struct tx_cxt tx;
+ struct rx_cxt rx;
+
+ struct work_struct ws;
+};
+
+#endif /* __GDM_SDIO_H__ */
diff --git a/drivers/staging/gdm72xx/gdm_usb.c b/drivers/staging/gdm72xx/gdm_usb.c
new file mode 100644
index 0000000..1f8c32d
--- /dev/null
+++ b/drivers/staging/gdm72xx/gdm_usb.c
@@ -0,0 +1,797 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/usb.h>
+#include <asm/byteorder.h>
+
+#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
+#ifndef CONFIG_USB_SUSPEND
+#error "USB host doesn't support USB Selective Suspend."
+#endif
+#endif
+
+#include "gdm_usb.h"
+#include "gdm_wimax.h"
+#include "usb_boot.h"
+#include "hci.h"
+
+#include "usb_ids.h"
+
+MODULE_DEVICE_TABLE(usb, id_table);
+
+#define TX_BUF_SIZE 2048
+#if defined(CONFIG_WIMAX_GDM72XX_WIMAX2)
+#define RX_BUF_SIZE (128*1024) /* For packet aggregation */
+#else
+#define RX_BUF_SIZE 2048
+#endif
+
+#define GDM7205_PADDING 256
+
+#define H2B(x) __cpu_to_be16(x)
+#define B2H(x) __be16_to_cpu(x)
+#define DB2H(x) __be32_to_cpu(x)
+
+#define DOWNLOAD_CONF_VALUE 0x21
+
+#ifdef CONFIG_WIMAX_GDM72XX_K_MODE
+
+static DECLARE_WAIT_QUEUE_HEAD(k_wait);
+static LIST_HEAD(k_list);
+static DEFINE_SPINLOCK(k_lock);
+static int k_mode_stop;
+
+#define K_WAIT_TIME (2 * HZ / 100)
+
+#endif /* CONFIG_WIMAX_GDM72XX_K_MODE */
+
+static int init_usb(struct usbwm_dev *udev);
+static void release_usb(struct usbwm_dev *udev);
+
+/*#define DEBUG */
+#ifdef DEBUG
+static void hexdump(char *title, u8 *data, int len)
+{
+ int i;
+
+ printk(KERN_DEBUG "%s: length = %d\n", title, len);
+ for (i = 0; i < len; i++) {
+ printk(KERN_DEBUG "%02x ", data[i]);
+ if ((i & 0xf) == 0xf)
+ printk(KERN_DEBUG "\n");
+ }
+ printk(KERN_DEBUG "\n");
+}
+#endif
+
+static struct usb_tx *alloc_tx_struct(struct tx_cxt *tx)
+{
+ struct usb_tx *t = NULL;
+
+ t = kmalloc(sizeof(*t), GFP_ATOMIC);
+ if (t == NULL)
+ goto out;
+
+ memset(t, 0, sizeof(*t));
+
+ t->urb = usb_alloc_urb(0, GFP_ATOMIC);
+ t->buf = kmalloc(TX_BUF_SIZE, GFP_ATOMIC);
+ if (t->urb == NULL || t->buf == NULL)
+ goto out;
+
+ t->tx_cxt = tx;
+
+ return t;
+out:
+ if (t) {
+ usb_free_urb(t->urb);
+ kfree(t->buf);
+ kfree(t);
+ }
+ return NULL;
+}
+
+static void free_tx_struct(struct usb_tx *t)
+{
+ if (t) {
+ usb_free_urb(t->urb);
+ kfree(t->buf);
+ kfree(t);
+ }
+}
+
+static struct usb_rx *alloc_rx_struct(struct rx_cxt *rx)
+{
+ struct usb_rx *r = NULL;
+
+ r = kmalloc(sizeof(*r), GFP_ATOMIC);
+ if (r == NULL)
+ goto out;
+
+ memset(r, 0, sizeof(*r));
+
+ r->urb = usb_alloc_urb(0, GFP_ATOMIC);
+ r->buf = kmalloc(RX_BUF_SIZE, GFP_ATOMIC);
+ if (r->urb == NULL || r->buf == NULL)
+ goto out;
+
+ r->rx_cxt = rx;
+ return r;
+out:
+ if (r) {
+ usb_free_urb(r->urb);
+ kfree(r->buf);
+ kfree(r);
+ }
+ return NULL;
+}
+
+static void free_rx_struct(struct usb_rx *r)
+{
+ if (r) {
+ usb_free_urb(r->urb);
+ kfree(r->buf);
+ kfree(r);
+ }
+}
+
+/* Before this function is called, spin lock should be locked. */
+static struct usb_tx *get_tx_struct(struct tx_cxt *tx, int *no_spc)
+{
+ struct usb_tx *t;
+
+ if (list_empty(&tx->free_list)) {
+ *no_spc = 1;
+ return NULL;
+ }
+
+ t = list_entry(tx->free_list.next, struct usb_tx, list);
+ list_del(&t->list);
+
+ *no_spc = list_empty(&tx->free_list) ? 1 : 0;
+
+ return t;
+}
+
+/* Before this function is called, spin lock should be locked. */
+static void put_tx_struct(struct tx_cxt *tx, struct usb_tx *t)
+{
+ list_add_tail(&t->list, &tx->free_list);
+}
+
+/* Before this function is called, spin lock should be locked. */
+static struct usb_rx *get_rx_struct(struct rx_cxt *rx)
+{
+ struct usb_rx *r;
+
+ if (list_empty(&rx->free_list)) {
+ r = alloc_rx_struct(rx);
+ if (r == NULL)
+ return NULL;
+
+ list_add(&r->list, &rx->free_list);
+ }
+
+ r = list_entry(rx->free_list.next, struct usb_rx, list);
+ list_del(&r->list);
+ list_add_tail(&r->list, &rx->used_list);
+
+ return r;
+}
+
+/* Before this function is called, spin lock should be locked. */
+static void put_rx_struct(struct rx_cxt *rx, struct usb_rx *r)
+{
+ list_del(&r->list);
+ list_add(&r->list, &rx->free_list);
+}
+
+static int init_usb(struct usbwm_dev *udev)
+{
+ int ret = 0, i;
+ struct tx_cxt *tx = &udev->tx;
+ struct rx_cxt *rx = &udev->rx;
+ struct usb_tx *t;
+ struct usb_rx *r;
+
+ INIT_LIST_HEAD(&tx->free_list);
+ INIT_LIST_HEAD(&tx->sdu_list);
+ INIT_LIST_HEAD(&tx->hci_list);
+#if defined(CONFIG_WIMAX_GDM72XX_USB_PM) || defined(CONFIG_WIMAX_GDM72XX_K_MODE)
+ INIT_LIST_HEAD(&tx->pending_list);
+#endif
+
+ INIT_LIST_HEAD(&rx->free_list);
+ INIT_LIST_HEAD(&rx->used_list);
+
+ spin_lock_init(&tx->lock);
+ spin_lock_init(&rx->lock);
+
+ for (i = 0; i < MAX_NR_SDU_BUF; i++) {
+ t = alloc_tx_struct(tx);
+ if (t == NULL) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+ list_add(&t->list, &tx->free_list);
+ }
+
+ r = alloc_rx_struct(rx);
+ if (r == NULL) {
+ ret = -ENOMEM;
+ goto fail;
+ }
+
+ list_add(&r->list, &rx->free_list);
+ return ret;
+
+fail:
+ release_usb(udev);
+ return ret;
+}
+
+static void release_usb(struct usbwm_dev *udev)
+{
+ struct tx_cxt *tx = &udev->tx;
+ struct rx_cxt *rx = &udev->rx;
+ struct usb_tx *t, *t_next;
+ struct usb_rx *r, *r_next;
+
+ list_for_each_entry_safe(t, t_next, &tx->sdu_list, list) {
+ list_del(&t->list);
+ free_tx_struct(t);
+ }
+
+ list_for_each_entry_safe(t, t_next, &tx->hci_list, list) {
+ list_del(&t->list);
+ free_tx_struct(t);
+ }
+
+ list_for_each_entry_safe(t, t_next, &tx->free_list, list) {
+ list_del(&t->list);
+ free_tx_struct(t);
+ }
+
+ list_for_each_entry_safe(r, r_next, &rx->free_list, list) {
+ list_del(&r->list);
+ free_rx_struct(r);
+ }
+
+ list_for_each_entry_safe(r, r_next, &rx->used_list, list) {
+ list_del(&r->list);
+ free_rx_struct(r);
+ }
+}
+
+static void gdm_usb_send_complete(struct urb *urb)
+{
+ struct usb_tx *t = urb->context;
+ struct tx_cxt *tx = t->tx_cxt;
+ u8 *pkt = t->buf;
+ u16 cmd_evt;
+ unsigned long flags;
+
+ /* Completion by usb_unlink_urb */
+ if (urb->status == -ECONNRESET)
+ return;
+
+ spin_lock_irqsave(&tx->lock, flags);
+
+ if (t->callback)
+ t->callback(t->cb_data);
+
+ /* Delete from sdu list or hci list. */
+ list_del(&t->list);
+
+ cmd_evt = (pkt[0] << 8) | pkt[1];
+ if (cmd_evt == WIMAX_TX_SDU)
+ put_tx_struct(tx, t);
+ else
+ free_tx_struct(t);
+
+ spin_unlock_irqrestore(&tx->lock, flags);
+}
+
+static int gdm_usb_send(void *priv_dev, void *data, int len,
+ void (*cb)(void *data), void *cb_data)
+{
+ struct usbwm_dev *udev = priv_dev;
+ struct usb_device *usbdev = udev->usbdev;
+ struct tx_cxt *tx = &udev->tx;
+ struct usb_tx *t;
+ int padding = udev->padding;
+ int no_spc = 0, ret;
+ u8 *pkt = data;
+ u16 cmd_evt;
+ unsigned long flags;
+
+ if (!udev->usbdev) {
+ printk(KERN_ERR "%s: No such device\n", __func__);
+ return -ENODEV;
+ }
+
+ BUG_ON(len > TX_BUF_SIZE - padding - 1);
+
+ spin_lock_irqsave(&tx->lock, flags);
+
+ cmd_evt = (pkt[0] << 8) | pkt[1];
+ if (cmd_evt == WIMAX_TX_SDU) {
+ t = get_tx_struct(tx, &no_spc);
+ if (t == NULL) {
+ /* This case must not happen. */
+ spin_unlock_irqrestore(&tx->lock, flags);
+ return -ENOSPC;
+ }
+ list_add_tail(&t->list, &tx->sdu_list);
+ } else {
+ t = alloc_tx_struct(tx);
+ if (t == NULL) {
+ spin_unlock_irqrestore(&tx->lock, flags);
+ return -ENOMEM;
+ }
+ list_add_tail(&t->list, &tx->hci_list);
+ }
+
+ memcpy(t->buf + padding, data, len);
+ t->callback = cb;
+ t->cb_data = cb_data;
+
+ /*
+ * In some cases, USB Module of WiMax is blocked when data size is
+ * the multiple of 512. So, increment length by one in that case.
+ */
+ if ((len % 512) == 0)
+ len++;
+
+ usb_fill_bulk_urb(t->urb,
+ usbdev,
+ usb_sndbulkpipe(usbdev, 1),
+ t->buf,
+ len + padding,
+ gdm_usb_send_complete,
+ t);
+
+#ifdef DEBUG
+ hexdump("usb_send", t->buf, len + padding);
+#endif
+#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
+ if (usbdev->state & USB_STATE_SUSPENDED) {
+ list_add_tail(&t->p_list, &tx->pending_list);
+ schedule_work(&udev->pm_ws);
+ goto out;
+ }
+#endif /* CONFIG_WIMAX_GDM72XX_USB_PM */
+
+#ifdef CONFIG_WIMAX_GDM72XX_K_MODE
+ if (udev->bw_switch) {
+ list_add_tail(&t->p_list, &tx->pending_list);
+ goto out;
+ } else if (cmd_evt == WIMAX_SCAN) {
+ struct rx_cxt *rx;
+ struct usb_rx *r;
+
+ rx = &udev->rx;
+
+ list_for_each_entry(r, &rx->used_list, list)
+ usb_unlink_urb(r->urb);
+ udev->bw_switch = 1;
+
+ spin_lock(&k_lock);
+ list_add_tail(&udev->list, &k_list);
+ spin_unlock(&k_lock);
+
+ wake_up(&k_wait);
+ }
+#endif /* CONFIG_WIMAX_GDM72XX_K_MODE */
+
+ ret = usb_submit_urb(t->urb, GFP_ATOMIC);
+ if (ret)
+ goto send_fail;
+
+#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
+ usb_mark_last_busy(usbdev);
+#endif /* CONFIG_WIMAX_GDM72XX_USB_PM */
+
+#if defined(CONFIG_WIMAX_GDM72XX_USB_PM) || defined(CONFIG_WIMAX_GDM72XX_K_MODE)
+out:
+#endif
+ spin_unlock_irqrestore(&tx->lock, flags);
+
+ if (no_spc)
+ return -ENOSPC;
+
+ return 0;
+
+send_fail:
+ t->callback = NULL;
+ gdm_usb_send_complete(t->urb);
+ spin_unlock_irqrestore(&tx->lock, flags);
+ return ret;
+}
+
+static void gdm_usb_rcv_complete(struct urb *urb)
+{
+ struct usb_rx *r = urb->context;
+ struct rx_cxt *rx = r->rx_cxt;
+ struct usbwm_dev *udev = container_of(r->rx_cxt, struct usbwm_dev, rx);
+ struct tx_cxt *tx = &udev->tx;
+ struct usb_tx *t;
+ u16 cmd_evt;
+ unsigned long flags;
+
+#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
+ struct usb_device *dev = urb->dev;
+#endif
+
+ /* Completion by usb_unlink_urb */
+ if (urb->status == -ECONNRESET)
+ return;
+
+ spin_lock_irqsave(&tx->lock, flags);
+
+ if (!urb->status) {
+ cmd_evt = (r->buf[0] << 8) | (r->buf[1]);
+#ifdef DEBUG
+ hexdump("usb_receive", r->buf, urb->actual_length);
+#endif
+ if (cmd_evt == WIMAX_SDU_TX_FLOW) {
+ if (r->buf[4] == 0) {
+#ifdef DEBUG
+ printk(KERN_DEBUG "WIMAX ==> STOP SDU TX\n");
+#endif
+ list_for_each_entry(t, &tx->sdu_list, list)
+ usb_unlink_urb(t->urb);
+ } else if (r->buf[4] == 1) {
+#ifdef DEBUG
+ printk(KERN_DEBUG "WIMAX ==> START SDU TX\n");
+#endif
+ list_for_each_entry(t, &tx->sdu_list, list) {
+ usb_submit_urb(t->urb, GFP_ATOMIC);
+ }
+ /*
+ * If free buffer for sdu tx doesn't
+ * exist, then tx queue should not be
+ * woken. For this reason, don't pass
+ * the command, START_SDU_TX.
+ */
+ if (list_empty(&tx->free_list))
+ urb->actual_length = 0;
+ }
+ }
+ }
+
+ if (!urb->status && r->callback)
+ r->callback(r->cb_data, r->buf, urb->actual_length);
+
+ spin_lock(&rx->lock);
+ put_rx_struct(rx, r);
+ spin_unlock(&rx->lock);
+
+ spin_unlock_irqrestore(&tx->lock, flags);
+
+#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
+ usb_mark_last_busy(dev);
+#endif
+}
+
+static int gdm_usb_receive(void *priv_dev,
+ void (*cb)(void *cb_data, void *data, int len),
+ void *cb_data)
+{
+ struct usbwm_dev *udev = priv_dev;
+ struct usb_device *usbdev = udev->usbdev;
+ struct rx_cxt *rx = &udev->rx;
+ struct usb_rx *r;
+ unsigned long flags;
+
+ if (!udev->usbdev) {
+ printk(KERN_ERR "%s: No such device\n", __func__);
+ return -ENODEV;
+ }
+
+ spin_lock_irqsave(&rx->lock, flags);
+ r = get_rx_struct(rx);
+ spin_unlock_irqrestore(&rx->lock, flags);
+
+ if (r == NULL)
+ return -ENOMEM;
+
+ r->callback = cb;
+ r->cb_data = cb_data;
+
+ usb_fill_bulk_urb(r->urb,
+ usbdev,
+ usb_rcvbulkpipe(usbdev, 0x82),
+ r->buf,
+ RX_BUF_SIZE,
+ gdm_usb_rcv_complete,
+ r);
+
+ return usb_submit_urb(r->urb, GFP_ATOMIC);
+}
+
+#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
+static void do_pm_control(struct work_struct *work)
+{
+ struct usbwm_dev *udev = container_of(work, struct usbwm_dev, pm_ws);
+ struct tx_cxt *tx = &udev->tx;
+ int ret;
+ unsigned long flags;
+
+ ret = usb_autopm_get_interface(udev->intf);
+ if (!ret)
+ usb_autopm_put_interface(udev->intf);
+
+ spin_lock_irqsave(&tx->lock, flags);
+ if (!(udev->usbdev->state & USB_STATE_SUSPENDED)
+ && (!list_empty(&tx->hci_list) || !list_empty(&tx->sdu_list))) {
+ struct usb_tx *t, *temp;
+
+ list_for_each_entry_safe(t, temp, &tx->pending_list, p_list) {
+ list_del(&t->p_list);
+ ret = usb_submit_urb(t->urb, GFP_ATOMIC);
+
+ if (ret) {
+ t->callback = NULL;
+ gdm_usb_send_complete(t->urb);
+ }
+ }
+ }
+ spin_unlock_irqrestore(&tx->lock, flags);
+}
+#endif /* CONFIG_WIMAX_GDM72XX_USB_PM */
+
+static int gdm_usb_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ int ret = 0;
+ u8 bConfigurationValue;
+ struct phy_dev *phy_dev = NULL;
+ struct usbwm_dev *udev = NULL;
+ u16 idVendor, idProduct, bcdDevice;
+
+ struct usb_device *usbdev = interface_to_usbdev(intf);
+
+ usb_get_dev(usbdev);
+ bConfigurationValue = usbdev->actconfig->desc.bConfigurationValue;
+
+ /*USB description is set up with Little-Endian*/
+ idVendor = L2H(usbdev->descriptor.idVendor);
+ idProduct = L2H(usbdev->descriptor.idProduct);
+ bcdDevice = L2H(usbdev->descriptor.bcdDevice);
+
+ printk(KERN_INFO "Found GDM USB VID = 0x%04x PID = 0x%04x...\n",
+ idVendor, idProduct);
+ printk(KERN_INFO "GCT WiMax driver version %s\n", DRIVER_VERSION);
+
+
+ if (idProduct == EMERGENCY_PID) {
+ ret = usb_emergency(usbdev);
+ goto out;
+ }
+
+ /* Support for EEPROM bootloader */
+ if (bConfigurationValue == DOWNLOAD_CONF_VALUE ||
+ idProduct & B_DOWNLOAD) {
+ ret = usb_boot(usbdev, bcdDevice);
+ goto out;
+ }
+
+ phy_dev = kmalloc(sizeof(*phy_dev), GFP_KERNEL);
+ if (phy_dev == NULL) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ udev = kmalloc(sizeof(*udev), GFP_KERNEL);
+ if (udev == NULL) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ memset(phy_dev, 0, sizeof(*phy_dev));
+ memset(udev, 0, sizeof(*udev));
+
+ if (idProduct == 0x7205 || idProduct == 0x7206)
+ udev->padding = GDM7205_PADDING;
+ else
+ udev->padding = 0;
+
+ phy_dev->priv_dev = (void *)udev;
+ phy_dev->send_func = gdm_usb_send;
+ phy_dev->rcv_func = gdm_usb_receive;
+
+ ret = init_usb(udev);
+ if (ret < 0)
+ goto out;
+
+ udev->usbdev = usbdev;
+
+#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
+ udev->intf = intf;
+
+ intf->needs_remote_wakeup = 1;
+ device_init_wakeup(&intf->dev, 1);
+
+ pm_runtime_set_autosuspend_delay(&usbdev->dev, 10 * 1000); /* msec */
+
+ INIT_WORK(&udev->pm_ws, do_pm_control);
+#endif /* CONFIG_WIMAX_GDM72XX_USB_PM */
+
+ ret = register_wimax_device(phy_dev);
+
+out:
+ if (ret) {
+ kfree(phy_dev);
+ kfree(udev);
+ }
+ usb_set_intfdata(intf, phy_dev);
+ return ret;
+}
+
+static void gdm_usb_disconnect(struct usb_interface *intf)
+{
+ u8 bConfigurationValue;
+ struct phy_dev *phy_dev;
+ struct usbwm_dev *udev;
+ u16 idProduct;
+ struct usb_device *usbdev = interface_to_usbdev(intf);
+
+ bConfigurationValue = usbdev->actconfig->desc.bConfigurationValue;
+ phy_dev = usb_get_intfdata(intf);
+
+ /*USB description is set up with Little-Endian*/
+ idProduct = L2H(usbdev->descriptor.idProduct);
+
+ if (idProduct != EMERGENCY_PID &&
+ bConfigurationValue != DOWNLOAD_CONF_VALUE &&
+ (idProduct & B_DOWNLOAD) == 0) {
+ udev = phy_dev->priv_dev;
+ udev->usbdev = NULL;
+
+ unregister_wimax_device(phy_dev);
+ release_usb(udev);
+ kfree(udev);
+ kfree(phy_dev);
+ }
+
+ usb_put_dev(usbdev);
+}
+
+#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
+static int gdm_suspend(struct usb_interface *intf, pm_message_t pm_msg)
+{
+ struct phy_dev *phy_dev;
+ struct usbwm_dev *udev;
+ struct rx_cxt *rx;
+ struct usb_rx *r;
+
+ phy_dev = usb_get_intfdata(intf);
+ udev = phy_dev->priv_dev;
+ rx = &udev->rx;
+
+ list_for_each_entry(r, &rx->used_list, list)
+ usb_unlink_urb(r->urb);
+
+ return 0;
+}
+
+static int gdm_resume(struct usb_interface *intf)
+{
+ struct phy_dev *phy_dev;
+ struct usbwm_dev *udev;
+ struct rx_cxt *rx;
+ struct usb_rx *r;
+
+ phy_dev = usb_get_intfdata(intf);
+ udev = phy_dev->priv_dev;
+ rx = &udev->rx;
+
+ list_for_each_entry(r, &rx->used_list, list)
+ usb_submit_urb(r->urb, GFP_ATOMIC);
+
+ return 0;
+}
+
+#endif /* CONFIG_WIMAX_GDM72XX_USB_PM */
+
+#ifdef CONFIG_WIMAX_GDM72XX_K_MODE
+static int k_mode_thread(void *arg)
+{
+ struct usbwm_dev *udev;
+ struct tx_cxt *tx;
+ struct rx_cxt *rx;
+ struct usb_tx *t, *temp;
+ struct usb_rx *r;
+ unsigned long flags, flags2, expire;
+ int ret;
+
+ daemonize("k_mode_wimax");
+
+ while (!k_mode_stop) {
+
+ spin_lock_irqsave(&k_lock, flags2);
+ while (!list_empty(&k_list)) {
+
+ udev = list_entry(k_list.next, struct usbwm_dev, list);
+ tx = &udev->tx;
+ rx = &udev->rx;
+
+ list_del(&udev->list);
+ spin_unlock_irqrestore(&k_lock, flags2);
+
+ expire = jiffies + K_WAIT_TIME;
+ while (jiffies < expire)
+ schedule_timeout(K_WAIT_TIME);
+
+ list_for_each_entry(r, &rx->used_list, list)
+ usb_submit_urb(r->urb, GFP_ATOMIC);
+
+ spin_lock_irqsave(&tx->lock, flags);
+
+ list_for_each_entry_safe(t, temp, &tx->pending_list,
+ p_list) {
+ list_del(&t->p_list);
+ ret = usb_submit_urb(t->urb, GFP_ATOMIC);
+
+ if (ret) {
+ t->callback = NULL;
+ gdm_usb_send_complete(t->urb);
+ }
+ }
+
+ udev->bw_switch = 0;
+ spin_unlock_irqrestore(&tx->lock, flags);
+
+ spin_lock_irqsave(&k_lock, flags2);
+ }
+ spin_unlock_irqrestore(&k_lock, flags2);
+
+ interruptible_sleep_on(&k_wait);
+ }
+ return 0;
+}
+#endif /* CONFIG_WIMAX_GDM72XX_K_MODE */
+
+static struct usb_driver gdm_usb_driver = {
+ .name = "gdm_wimax",
+ .probe = gdm_usb_probe,
+ .disconnect = gdm_usb_disconnect,
+ .id_table = id_table,
+#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
+ .supports_autosuspend = 1,
+ .suspend = gdm_suspend,
+ .resume = gdm_resume,
+ .reset_resume = gdm_resume,
+#endif
+};
+
+static int __init usb_gdm_wimax_init(void)
+{
+#ifdef CONFIG_WIMAX_GDM72XX_K_MODE
+ kernel_thread(k_mode_thread, NULL, CLONE_KERNEL);
+#endif /* CONFIG_WIMAX_GDM72XX_K_MODE */
+ return usb_register(&gdm_usb_driver);
+}
+
+static void __exit usb_gdm_wimax_exit(void)
+{
+#ifdef CONFIG_WIMAX_GDM72XX_K_MODE
+ k_mode_stop = 1;
+ wake_up(&k_wait);
+#endif
+ usb_deregister(&gdm_usb_driver);
+}
+
+module_init(usb_gdm_wimax_init);
+module_exit(usb_gdm_wimax_exit);
+
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_DESCRIPTION("GCT WiMax Device Driver");
+MODULE_AUTHOR("Ethan Park");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/gdm72xx/gdm_usb.h b/drivers/staging/gdm72xx/gdm_usb.h
new file mode 100644
index 0000000..fa11024
--- /dev/null
+++ b/drivers/staging/gdm72xx/gdm_usb.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef __GDM_USB_H__
+#define __GDM_USB_H__
+
+#include <linux/types.h>
+#include <linux/usb.h>
+#include <linux/list.h>
+
+#define B_DIFF_DL_DRV (1<<4)
+#define B_DOWNLOAD (1 << 5)
+#define MAX_NR_SDU_BUF 64
+
+struct usb_tx {
+ struct list_head list;
+#if defined(CONFIG_WIMAX_GDM72XX_USB_PM) || defined(CONFIG_WIMAX_GDM72XX_K_MODE)
+ struct list_head p_list;
+#endif
+ struct tx_cxt *tx_cxt;
+
+ struct urb *urb;
+ u8 *buf;
+
+ void (*callback)(void *cb_data);
+ void *cb_data;
+};
+
+struct tx_cxt {
+ struct list_head free_list;
+ struct list_head sdu_list;
+ struct list_head hci_list;
+#if defined(CONFIG_WIMAX_GDM72XX_USB_PM) || defined(CONFIG_WIMAX_GDM72XX_K_MODE)
+ struct list_head pending_list;
+#endif
+
+ spinlock_t lock;
+};
+
+struct usb_rx {
+ struct list_head list;
+ struct rx_cxt *rx_cxt;
+
+ struct urb *urb;
+ u8 *buf;
+
+ void (*callback)(void *cb_data, void *data, int len);
+ void *cb_data;
+};
+
+struct rx_cxt {
+ struct list_head free_list;
+ struct list_head used_list;
+ spinlock_t lock;
+};
+
+struct usbwm_dev {
+ struct usb_device *usbdev;
+#ifdef CONFIG_WIMAX_GDM72XX_USB_PM
+ struct work_struct pm_ws;
+
+ struct usb_interface *intf;
+#endif
+#ifdef CONFIG_WIMAX_GDM72XX_K_MODE
+ int bw_switch;
+ struct list_head list;
+#endif
+
+ struct tx_cxt tx;
+ struct rx_cxt rx;
+
+ int padding;
+};
+
+#endif /* __GDM_USB_H__ */
diff --git a/drivers/staging/gdm72xx/gdm_wimax.c b/drivers/staging/gdm72xx/gdm_wimax.c
new file mode 100644
index 0000000..0bc84c1
--- /dev/null
+++ b/drivers/staging/gdm72xx/gdm_wimax.c
@@ -0,0 +1,1018 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <linux/version.h>
+#include <linux/etherdevice.h>
+#include <asm/byteorder.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/udp.h>
+#include <linux/in.h>
+
+#include "gdm_wimax.h"
+#include "hci.h"
+#include "wm_ioctl.h"
+#include "netlink_k.h"
+
+#define gdm_wimax_send(n, d, l) \
+ (n->phy_dev->send_func)(n->phy_dev->priv_dev, d, l, NULL, NULL)
+#define gdm_wimax_send_with_cb(n, d, l, c, b) \
+ (n->phy_dev->send_func)(n->phy_dev->priv_dev, d, l, c, b)
+#define gdm_wimax_rcv_with_cb(n, c, b) \
+ (n->phy_dev->rcv_func)(n->phy_dev->priv_dev, c, b)
+
+#define EVT_MAX_SIZE 2048
+
+struct evt_entry {
+ struct list_head list;
+ struct net_device *dev;
+ char evt_data[EVT_MAX_SIZE];
+ int size;
+};
+
+static void __gdm_wimax_event_send(struct work_struct *work);
+static inline struct evt_entry *alloc_event_entry(void);
+static inline void free_event_entry(struct evt_entry *e);
+static struct evt_entry *get_event_entry(void);
+static void put_event_entry(struct evt_entry *e);
+
+static struct {
+ int ref_cnt;
+ struct sock *sock;
+ struct list_head evtq;
+ spinlock_t evt_lock;
+
+ struct list_head freeq;
+ struct work_struct ws;
+} wm_event;
+
+static u8 gdm_wimax_macaddr[6] = {0x00, 0x0a, 0x3b, 0xf0, 0x01, 0x30};
+
+static void gdm_wimax_ind_fsm_update(struct net_device *dev, struct fsm_s *fsm);
+static void gdm_wimax_ind_if_updown(struct net_device *dev, int if_up);
+
+#if defined(DEBUG_SDU)
+static void printk_hex(u8 *buf, u32 size)
+{
+ int i;
+
+ for (i = 0; i < size; i++) {
+ if (i && i % 16 == 0)
+ printk(KERN_DEBUG "\n%02x ", *buf++);
+ else
+ printk(KERN_DEBUG "%02x ", *buf++);
+ }
+
+ printk(KERN_DEBUG "\n");
+}
+
+static const char *get_protocol_name(u16 protocol)
+{
+ static char buf[32];
+ const char *name = "-";
+
+ switch (protocol) {
+ case ETH_P_ARP:
+ name = "ARP";
+ break;
+ case ETH_P_IP:
+ name = "IP";
+ break;
+ case ETH_P_IPV6:
+ name = "IPv6";
+ break;
+ }
+
+ sprintf(buf, "0x%04x(%s)", protocol, name);
+ return buf;
+}
+
+static const char *get_ip_protocol_name(u8 ip_protocol)
+{
+ static char buf[32];
+ const char *name = "-";
+
+ switch (ip_protocol) {
+ case IPPROTO_TCP:
+ name = "TCP";
+ break;
+ case IPPROTO_UDP:
+ name = "UDP";
+ break;
+ case IPPROTO_ICMP:
+ name = "ICMP";
+ break;
+ }
+
+ sprintf(buf, "%u(%s)", ip_protocol, name);
+ return buf;
+}
+
+static const char *get_port_name(u16 port)
+{
+ static char buf[32];
+ const char *name = "-";
+
+ switch (port) {
+ case 67:
+ name = "DHCP-Server";
+ break;
+ case 68:
+ name = "DHCP-Client";
+ break;
+ case 69:
+ name = "TFTP";
+ break;
+ }
+
+ sprintf(buf, "%u(%s)", port, name);
+ return buf;
+}
+
+static void dump_eth_packet(const char *title, u8 *data, int len)
+{
+ struct iphdr *ih = NULL;
+ struct udphdr *uh = NULL;
+ u16 protocol = 0;
+ u8 ip_protocol = 0;
+ u16 port = 0;
+
+ protocol = (data[12]<<8) | data[13];
+ ih = (struct iphdr *) (data+ETH_HLEN);
+
+ if (protocol == ETH_P_IP) {
+ uh = (struct udphdr *) ((char *)ih + sizeof(struct iphdr));
+ ip_protocol = ih->protocol;
+ port = ntohs(uh->dest);
+ } else if (protocol == ETH_P_IPV6) {
+ struct ipv6hdr *i6h = (struct ipv6hdr *) data;
+ uh = (struct udphdr *) ((char *)i6h + sizeof(struct ipv6hdr));
+ ip_protocol = i6h->nexthdr;
+ port = ntohs(uh->dest);
+ }
+
+ printk(KERN_DEBUG "[%s] len=%d, %s, %s, %s\n",
+ title, len,
+ get_protocol_name(protocol),
+ get_ip_protocol_name(ip_protocol),
+ get_port_name(port));
+
+ #if 1
+ if (!(data[0] == 0xff && data[1] == 0xff)) {
+ if (protocol == ETH_P_IP) {
+ printk(KERN_DEBUG " src=%u.%u.%u.%u\n",
+ NIPQUAD(ih->saddr));
+ } else if (protocol == ETH_P_IPV6) {
+ #ifdef NIP6
+ printk(KERN_DEBUG " src=%x:%x:%x:%x:%x:%x:%x:%x\n",
+ NIP6(ih->saddr));
+ #else
+ printk(KERN_DEBUG " src=%pI6\n", &ih->saddr);
+ #endif
+ }
+ }
+ #endif
+
+ #if (DUMP_PACKET & DUMP_SDU_ALL)
+ printk_hex(data, len);
+ #else
+ #if (DUMP_PACKET & DUMP_SDU_ARP)
+ if (protocol == ETH_P_ARP)
+ printk_hex(data, len);
+ #endif
+ #if (DUMP_PACKET & DUMP_SDU_IP)
+ if (protocol == ETH_P_IP || protocol == ETH_P_IPV6)
+ printk_hex(data, len);
+ #else
+ #if (DUMP_PACKET & DUMP_SDU_IP_TCP)
+ if (ip_protocol == IPPROTO_TCP)
+ printk_hex(data, len);
+ #endif
+ #if (DUMP_PACKET & DUMP_SDU_IP_UDP)
+ if (ip_protocol == IPPROTO_UDP)
+ printk_hex(data, len);
+ #endif
+ #if (DUMP_PACKET & DUMP_SDU_IP_ICMP)
+ if (ip_protocol == IPPROTO_ICMP)
+ printk_hex(data, len);
+ #endif
+ #endif
+ #endif
+}
+#endif
+
+
+static inline int gdm_wimax_header(struct sk_buff **pskb)
+{
+ u16 buf[HCI_HEADER_SIZE / sizeof(u16)];
+ struct sk_buff *skb = *pskb;
+ int ret = 0;
+
+ if (unlikely(skb_headroom(skb) < HCI_HEADER_SIZE)) {
+ struct sk_buff *skb2;
+
+ skb2 = skb_realloc_headroom(skb, HCI_HEADER_SIZE);
+ if (skb2 == NULL)
+ return -ENOMEM;
+ if (skb->sk)
+ skb_set_owner_w(skb2, skb->sk);
+ kfree_skb(skb);
+ skb = skb2;
+ }
+
+ skb_push(skb, HCI_HEADER_SIZE);
+ buf[0] = H2B(WIMAX_TX_SDU);
+ buf[1] = H2B(skb->len - HCI_HEADER_SIZE);
+ memcpy(skb->data, buf, HCI_HEADER_SIZE);
+
+ *pskb = skb;
+ return ret;
+}
+
+static void gdm_wimax_event_rcv(struct net_device *dev, u16 type, void *msg,
+ int len)
+{
+ struct nic *nic = netdev_priv(dev);
+
+ #if defined(DEBUG_HCI)
+ u8 *buf = (u8 *) msg;
+ u16 hci_cmd = (buf[0]<<8) | buf[1];
+ u16 hci_len = (buf[2]<<8) | buf[3];
+ printk(KERN_DEBUG "H=>D: 0x%04x(%d)\n", hci_cmd, hci_len);
+ #endif
+
+ gdm_wimax_send(nic, msg, len);
+}
+
+static int gdm_wimax_event_init(void)
+{
+ if (wm_event.ref_cnt == 0) {
+ wm_event.sock = netlink_init(NETLINK_WIMAX,
+ gdm_wimax_event_rcv);
+ INIT_LIST_HEAD(&wm_event.evtq);
+ INIT_LIST_HEAD(&wm_event.freeq);
+ INIT_WORK(&wm_event.ws, __gdm_wimax_event_send);
+ spin_lock_init(&wm_event.evt_lock);
+ }
+
+ if (wm_event.sock) {
+ wm_event.ref_cnt++;
+ return 0;
+ }
+
+ printk(KERN_ERR "Creating WiMax Event netlink is failed\n");
+ return -1;
+}
+
+static void gdm_wimax_event_exit(void)
+{
+ if (wm_event.sock && --wm_event.ref_cnt == 0) {
+ struct evt_entry *e, *temp;
+ unsigned long flags;
+
+ spin_lock_irqsave(&wm_event.evt_lock, flags);
+
+ list_for_each_entry_safe(e, temp, &wm_event.evtq, list) {
+ list_del(&e->list);
+ free_event_entry(e);
+ }
+ list_for_each_entry_safe(e, temp, &wm_event.freeq, list) {
+ list_del(&e->list);
+ free_event_entry(e);
+ }
+
+ spin_unlock_irqrestore(&wm_event.evt_lock, flags);
+ netlink_exit(wm_event.sock);
+ wm_event.sock = NULL;
+ }
+}
+
+static inline struct evt_entry *alloc_event_entry(void)
+{
+ return kmalloc(sizeof(struct evt_entry), GFP_ATOMIC);
+}
+
+static inline void free_event_entry(struct evt_entry *e)
+{
+ kfree(e);
+}
+
+static struct evt_entry *get_event_entry(void)
+{
+ struct evt_entry *e;
+
+ if (list_empty(&wm_event.freeq))
+ e = alloc_event_entry();
+ else {
+ e = list_entry(wm_event.freeq.next, struct evt_entry, list);
+ list_del(&e->list);
+ }
+
+ return e;
+}
+
+static void put_event_entry(struct evt_entry *e)
+{
+ BUG_ON(!e);
+
+ list_add_tail(&e->list, &wm_event.freeq);
+}
+
+static void __gdm_wimax_event_send(struct work_struct *work)
+{
+ int idx;
+ unsigned long flags;
+ struct evt_entry *e;
+
+ spin_lock_irqsave(&wm_event.evt_lock, flags);
+
+ while (!list_empty(&wm_event.evtq)) {
+ e = list_entry(wm_event.evtq.next, struct evt_entry, list);
+ spin_unlock_irqrestore(&wm_event.evt_lock, flags);
+
+ sscanf(e->dev->name, "wm%d", &idx);
+ netlink_send(wm_event.sock, idx, 0, e->evt_data, e->size);
+
+ spin_lock_irqsave(&wm_event.evt_lock, flags);
+ list_del(&e->list);
+ put_event_entry(e);
+ }
+
+ spin_unlock_irqrestore(&wm_event.evt_lock, flags);
+}
+
+static int gdm_wimax_event_send(struct net_device *dev, char *buf, int size)
+{
+ struct evt_entry *e;
+ unsigned long flags;
+
+ #if defined(DEBUG_HCI)
+ u16 hci_cmd = ((u8)buf[0]<<8) | (u8)buf[1];
+ u16 hci_len = ((u8)buf[2]<<8) | (u8)buf[3];
+ printk(KERN_DEBUG "D=>H: 0x%04x(%d)\n", hci_cmd, hci_len);
+ #endif
+
+ spin_lock_irqsave(&wm_event.evt_lock, flags);
+
+ e = get_event_entry();
+ if (!e) {
+ printk(KERN_ERR "%s: No memory for event\n", __func__);
+ spin_unlock_irqrestore(&wm_event.evt_lock, flags);
+ return -ENOMEM;
+ }
+
+ e->dev = dev;
+ e->size = size;
+ memcpy(e->evt_data, buf, size);
+
+ list_add_tail(&e->list, &wm_event.evtq);
+ spin_unlock_irqrestore(&wm_event.evt_lock, flags);
+
+ schedule_work(&wm_event.ws);
+
+ return 0;
+}
+
+static void tx_complete(void *arg)
+{
+ struct nic *nic = arg;
+
+ if (netif_queue_stopped(nic->netdev))
+ netif_wake_queue(nic->netdev);
+}
+
+int gdm_wimax_send_tx(struct sk_buff *skb, struct net_device *dev)
+{
+ int ret = 0;
+ struct nic *nic = netdev_priv(dev);
+
+ ret = gdm_wimax_send_with_cb(nic, skb->data, skb->len, tx_complete,
+ nic);
+ if (ret == -ENOSPC) {
+ netif_stop_queue(dev);
+ ret = 0;
+ }
+
+ if (ret) {
+ skb_pull(skb, HCI_HEADER_SIZE);
+ return ret;
+ }
+
+ nic->stats.tx_packets++;
+ nic->stats.tx_bytes += skb->len - HCI_HEADER_SIZE;
+ kfree_skb(skb);
+ return ret;
+}
+
+static int gdm_wimax_tx(struct sk_buff *skb, struct net_device *dev)
+{
+ int ret = 0;
+ struct nic *nic = netdev_priv(dev);
+ struct fsm_s *fsm = (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf;
+
+ #if defined(DEBUG_SDU)
+ dump_eth_packet("TX", skb->data, skb->len);
+ #endif
+
+ ret = gdm_wimax_header(&skb);
+ if (ret < 0) {
+ skb_pull(skb, HCI_HEADER_SIZE);
+ return ret;
+ }
+
+ #if !defined(LOOPBACK_TEST)
+ if (!fsm)
+ printk(KERN_ERR "ASSERTION ERROR: fsm is NULL!!\n");
+ else if (fsm->m_status != M_CONNECTED) {
+ printk(KERN_EMERG "ASSERTION ERROR: Device is NOT ready. status=%d\n",
+ fsm->m_status);
+ kfree_skb(skb);
+ return 0;
+ }
+ #endif
+
+#if defined(CONFIG_WIMAX_GDM72XX_QOS)
+ ret = gdm_qos_send_hci_pkt(skb, dev);
+#else
+ ret = gdm_wimax_send_tx(skb, dev);
+#endif
+ return ret;
+}
+
+static int gdm_wimax_set_config(struct net_device *dev, struct ifmap *map)
+{
+ if (dev->flags & IFF_UP)
+ return -EBUSY;
+
+ return 0;
+}
+
+static void __gdm_wimax_set_mac_addr(struct net_device *dev, char *mac_addr)
+{
+ u16 hci_pkt_buf[32 / sizeof(u16)];
+ u8 *pkt = (u8 *) &hci_pkt_buf[0];
+ struct nic *nic = netdev_priv(dev);
+
+ /* Since dev is registered as a ethernet device,
+ * ether_setup has made dev->addr_len to be ETH_ALEN
+ */
+ memcpy(dev->dev_addr, mac_addr, dev->addr_len);
+
+ /* Let lower layer know of this change by sending
+ * SetInformation(MAC Address)
+ */
+ hci_pkt_buf[0] = H2B(WIMAX_SET_INFO); /* cmd_evt */
+ hci_pkt_buf[1] = H2B(8); /* size */
+ pkt[4] = 0; /* T */
+ pkt[5] = 6; /* L */
+ memcpy(pkt + 6, mac_addr, dev->addr_len); /* V */
+
+ gdm_wimax_send(nic, pkt, HCI_HEADER_SIZE + 8);
+}
+
+/* A driver function */
+static int gdm_wimax_set_mac_addr(struct net_device *dev, void *p)
+{
+ struct sockaddr *addr = p;
+
+ if (netif_running(dev))
+ return -EBUSY;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ __gdm_wimax_set_mac_addr(dev, addr->sa_data);
+
+ return 0;
+}
+
+static struct net_device_stats *gdm_wimax_stats(struct net_device *dev)
+{
+ struct nic *nic = netdev_priv(dev);
+
+ return &nic->stats;
+}
+
+static int gdm_wimax_open(struct net_device *dev)
+{
+ struct nic *nic = netdev_priv(dev);
+ struct fsm_s *fsm = (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf;
+
+ netif_start_queue(dev);
+
+ if (fsm && fsm->m_status != M_INIT)
+ gdm_wimax_ind_if_updown(dev, 1);
+ return 0;
+}
+
+static int gdm_wimax_close(struct net_device *dev)
+{
+ struct nic *nic = netdev_priv(dev);
+ struct fsm_s *fsm = (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf;
+
+ netif_stop_queue(dev);
+
+ if (fsm && fsm->m_status != M_INIT)
+ gdm_wimax_ind_if_updown(dev, 0);
+ return 0;
+}
+
+static void kdelete(void **buf)
+{
+ if (buf && *buf) {
+ kfree(*buf);
+ *buf = NULL;
+ }
+}
+
+static int gdm_wimax_ioctl_get_data(struct data_s *dst, struct data_s *src)
+{
+ int size;
+
+ size = dst->size < src->size ? dst->size : src->size;
+
+ dst->size = size;
+ if (src->size) {
+ if (!dst->buf)
+ return -EINVAL;
+ if (copy_to_user(dst->buf, src->buf, size))
+ return -EFAULT;
+ }
+ return 0;
+}
+
+static int gdm_wimax_ioctl_set_data(struct data_s *dst, struct data_s *src)
+{
+ if (!src->size) {
+ dst->size = 0;
+ return 0;
+ }
+
+ if (!src->buf)
+ return -EINVAL;
+
+ if (!(dst->buf && dst->size == src->size)) {
+ kdelete(&dst->buf);
+ dst->buf = kmalloc(src->size, GFP_KERNEL);
+ if (dst->buf == NULL)
+ return -ENOMEM;
+ }
+
+ if (copy_from_user(dst->buf, src->buf, src->size)) {
+ kdelete(&dst->buf);
+ return -EFAULT;
+ }
+ dst->size = src->size;
+ return 0;
+}
+
+static void gdm_wimax_cleanup_ioctl(struct net_device *dev)
+{
+ struct nic *nic = netdev_priv(dev);
+ int i;
+
+ for (i = 0; i < SIOC_DATA_MAX; i++)
+ kdelete(&nic->sdk_data[i].buf);
+}
+
+static void gdm_update_fsm(struct net_device *dev, struct fsm_s *new_fsm)
+{
+ struct nic *nic = netdev_priv(dev);
+ struct fsm_s *cur_fsm =
+ (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf;
+
+ if (!cur_fsm)
+ return;
+
+ if (cur_fsm->m_status != new_fsm->m_status ||
+ cur_fsm->c_status != new_fsm->c_status) {
+ if (new_fsm->m_status == M_CONNECTED)
+ netif_carrier_on(dev);
+ else if (cur_fsm->m_status == M_CONNECTED) {
+ netif_carrier_off(dev);
+ #if defined(CONFIG_WIMAX_GDM72XX_QOS)
+ gdm_qos_release_list(nic);
+ #endif
+ }
+ gdm_wimax_ind_fsm_update(dev, new_fsm);
+ }
+}
+
+static int gdm_wimax_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct wm_req_s *req = (struct wm_req_s *) ifr;
+ struct nic *nic = netdev_priv(dev);
+ int ret;
+
+ if (cmd != SIOCWMIOCTL)
+ return -EOPNOTSUPP;
+
+ switch (req->cmd) {
+ case SIOCG_DATA:
+ case SIOCS_DATA:
+ if (req->data_id >= SIOC_DATA_MAX) {
+ printk(KERN_ERR
+ "%s error: data-index(%d) is invalid!!\n",
+ __func__, req->data_id);
+ return -EOPNOTSUPP;
+ }
+ if (req->cmd == SIOCG_DATA) {
+ ret = gdm_wimax_ioctl_get_data(&req->data,
+ &nic->sdk_data[req->data_id]);
+ if (ret < 0)
+ return ret;
+ } else if (req->cmd == SIOCS_DATA) {
+ if (req->data_id == SIOC_DATA_FSM) {
+ /*NOTE: gdm_update_fsm should be called
+ before gdm_wimax_ioctl_set_data is called*/
+ gdm_update_fsm(dev,
+ (struct fsm_s *) req->data.buf);
+ }
+ ret = gdm_wimax_ioctl_set_data(
+ &nic->sdk_data[req->data_id], &req->data);
+ if (ret < 0)
+ return ret;
+ }
+ break;
+ default:
+ printk(KERN_ERR "%s: %x unknown ioctl\n", __func__, cmd);
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static void gdm_wimax_prepare_device(struct net_device *dev)
+{
+ struct nic *nic = netdev_priv(dev);
+ u16 buf[32 / sizeof(u16)];
+ struct hci_s *hci = (struct hci_s *) buf;
+ u16 len = 0;
+ u32 val = 0;
+
+ #define BIT_MULTI_CS 0
+ #define BIT_WIMAX 1
+ #define BIT_QOS 2
+ #define BIT_AGGREGATION 3
+
+ /* GetInformation mac address */
+ len = 0;
+ hci->cmd_evt = H2B(WIMAX_GET_INFO);
+ hci->data[len++] = TLV_T(T_MAC_ADDRESS);
+ hci->length = H2B(len);
+ gdm_wimax_send(nic, hci, HCI_HEADER_SIZE+len);
+
+ val = (1<<BIT_WIMAX) | (1<<BIT_MULTI_CS);
+ #if defined(CONFIG_WIMAX_GDM72XX_QOS)
+ val |= (1<<BIT_QOS);
+ #endif
+ #if defined(CONFIG_WIMAX_GDM72XX_WIMAX2)
+ val |= (1<<BIT_AGGREGATION);
+ #endif
+
+ /* Set capability */
+ len = 0;
+ hci->cmd_evt = H2B(WIMAX_SET_INFO);
+ hci->data[len++] = TLV_T(T_CAPABILITY);
+ hci->data[len++] = TLV_L(T_CAPABILITY);
+ val = DH2B(val);
+ memcpy(&hci->data[len], &val, TLV_L(T_CAPABILITY));
+ len += TLV_L(T_CAPABILITY);
+ hci->length = H2B(len);
+ gdm_wimax_send(nic, hci, HCI_HEADER_SIZE+len);
+
+ printk(KERN_INFO "GDM WiMax Set CAPABILITY: 0x%08X\n", DB2H(val));
+}
+
+static int gdm_wimax_hci_get_tlv(u8 *buf, u8 *T, u16 *L, u8 **V)
+{
+ #define __U82U16(b) ((u16)((u8 *)(b))[0] | ((u16)((u8 *)(b))[1] << 8))
+ int next_pos;
+
+ *T = buf[0];
+ if (buf[1] == 0x82) {
+ *L = B2H(__U82U16(&buf[2]));
+ next_pos = 1/*type*/+3/*len*/;
+ } else {
+ *L = buf[1];
+ next_pos = 1/*type*/+1/*len*/;
+ }
+ *V = &buf[next_pos];
+
+ next_pos += *L/*length of val*/;
+ return next_pos;
+}
+
+static int gdm_wimax_get_prepared_info(struct net_device *dev, char *buf,
+ int len)
+{
+ u8 T, *V;
+ u16 L;
+ u16 cmd_evt, cmd_len;
+ int pos = HCI_HEADER_SIZE;
+
+ cmd_evt = B2H(*(u16 *)&buf[0]);
+ cmd_len = B2H(*(u16 *)&buf[2]);
+
+ if (len < cmd_len + HCI_HEADER_SIZE) {
+ printk(KERN_ERR "%s: invalid length [%d/%d]\n", __func__,
+ cmd_len + HCI_HEADER_SIZE, len);
+ return -1;
+ }
+
+ if (cmd_evt == WIMAX_GET_INFO_RESULT) {
+ if (cmd_len < 2) {
+ printk(KERN_ERR "%s: len is too short [%x/%d]\n",
+ __func__, cmd_evt, len);
+ return -1;
+ }
+
+ pos += gdm_wimax_hci_get_tlv(&buf[pos], &T, &L, &V);
+ if (T == TLV_T(T_MAC_ADDRESS)) {
+ if (L != dev->addr_len) {
+ printk(KERN_ERR
+ "%s Invalid inofrmation result T/L "
+ "[%x/%d]\n", __func__, T, L);
+ return -1;
+ }
+ printk(KERN_INFO
+ "MAC change [%02x:%02x:%02x:%02x:%02x:%02x]"
+ "->[%02x:%02x:%02x:%02x:%02x:%02x]\n",
+ dev->dev_addr[0], dev->dev_addr[1],
+ dev->dev_addr[2], dev->dev_addr[3],
+ dev->dev_addr[4], dev->dev_addr[5],
+ V[0], V[1], V[2], V[3], V[4], V[5]);
+ memcpy(dev->dev_addr, V, dev->addr_len);
+ return 1;
+ }
+ }
+
+ gdm_wimax_event_send(dev, buf, len);
+ return 0;
+}
+
+static void gdm_wimax_netif_rx(struct net_device *dev, char *buf, int len)
+{
+ struct nic *nic = netdev_priv(dev);
+ struct sk_buff *skb;
+ int ret;
+
+ #if defined(DEBUG_SDU)
+ dump_eth_packet("RX", buf, len);
+ #endif
+
+ skb = dev_alloc_skb(len + 2);
+ if (!skb) {
+ printk(KERN_ERR "%s: dev_alloc_skb failed!\n", __func__);
+ return;
+ }
+ skb_reserve(skb, 2);
+
+ nic->stats.rx_packets++;
+ nic->stats.rx_bytes += len;
+
+ memcpy(skb_put(skb, len), buf, len);
+
+ skb->dev = dev;
+ skb->protocol = eth_type_trans(skb, dev); /* what will happen? */
+
+ ret = in_interrupt() ? netif_rx(skb) : netif_rx_ni(skb);
+ if (ret == NET_RX_DROP)
+ printk(KERN_ERR "%s skb dropped\n", __func__);
+}
+
+static void gdm_wimax_transmit_aggr_pkt(struct net_device *dev, char *buf,
+ int len)
+{
+ #define HCI_PADDING_BYTE 4
+ #define HCI_RESERVED_BYTE 4
+ struct hci_s *hci;
+ int length;
+
+ while (len > 0) {
+ hci = (struct hci_s *) buf;
+
+ if (B2H(hci->cmd_evt) != WIMAX_RX_SDU) {
+ printk(KERN_ERR "Wrong cmd_evt(0x%04X)\n",
+ B2H(hci->cmd_evt));
+ break;
+ }
+
+ length = B2H(hci->length);
+ gdm_wimax_netif_rx(dev, hci->data, length);
+
+ if (length & 0x3) {
+ /* Add padding size */
+ length += HCI_PADDING_BYTE - (length & 0x3);
+ }
+
+ length += HCI_HEADER_SIZE + HCI_RESERVED_BYTE;
+ len -= length;
+ buf += length;
+ }
+}
+
+static void gdm_wimax_transmit_pkt(struct net_device *dev, char *buf, int len)
+{
+ #if defined(CONFIG_WIMAX_GDM72XX_QOS)
+ struct nic *nic = netdev_priv(dev);
+ #endif
+ u16 cmd_evt, cmd_len;
+
+ /* This code is added for certain rx packet to be ignored. */
+ if (len == 0)
+ return;
+
+ cmd_evt = B2H(*(u16 *)&buf[0]);
+ cmd_len = B2H(*(u16 *)&buf[2]);
+
+ if (len < cmd_len + HCI_HEADER_SIZE) {
+ if (len)
+ printk(KERN_ERR "%s: invalid length [%d/%d]\n",
+ __func__, cmd_len + HCI_HEADER_SIZE, len);
+ return;
+ }
+
+ switch (cmd_evt) {
+ case WIMAX_RX_SDU_AGGR:
+ gdm_wimax_transmit_aggr_pkt(dev, &buf[HCI_HEADER_SIZE],
+ cmd_len);
+ break;
+ case WIMAX_RX_SDU:
+ gdm_wimax_netif_rx(dev, &buf[HCI_HEADER_SIZE], cmd_len);
+ break;
+ #if defined(CONFIG_WIMAX_GDM72XX_QOS)
+ case WIMAX_EVT_MODEM_REPORT:
+ gdm_recv_qos_hci_packet(nic, buf, len);
+ break;
+ #endif
+ case WIMAX_SDU_TX_FLOW:
+ if (buf[4] == 0) {
+ if (!netif_queue_stopped(dev))
+ netif_stop_queue(dev);
+ } else if (buf[4] == 1) {
+ if (netif_queue_stopped(dev))
+ netif_wake_queue(dev);
+ }
+ break;
+ default:
+ gdm_wimax_event_send(dev, buf, len);
+ break;
+ }
+}
+
+static void gdm_wimax_ind_fsm_update(struct net_device *dev, struct fsm_s *fsm)
+{
+ u16 buf[32 / sizeof(u16)];
+ u8 *hci_pkt_buf = (u8 *)&buf[0];
+
+ /* Indicate updating fsm */
+ buf[0] = H2B(WIMAX_FSM_UPDATE);
+ buf[1] = H2B(sizeof(struct fsm_s));
+ memcpy(&hci_pkt_buf[HCI_HEADER_SIZE], fsm, sizeof(struct fsm_s));
+
+ gdm_wimax_event_send(dev, hci_pkt_buf,
+ HCI_HEADER_SIZE + sizeof(struct fsm_s));
+}
+
+static void gdm_wimax_ind_if_updown(struct net_device *dev, int if_up)
+{
+ u16 buf[32 / sizeof(u16)];
+ struct hci_s *hci = (struct hci_s *) buf;
+ unsigned char up_down;
+
+ up_down = if_up ? WIMAX_IF_UP : WIMAX_IF_DOWN;
+
+ /* Indicate updating fsm */
+ hci->cmd_evt = H2B(WIMAX_IF_UPDOWN);
+ hci->length = H2B(sizeof(up_down));
+ hci->data[0] = up_down;
+
+ gdm_wimax_event_send(dev, (char *)hci, HCI_HEADER_SIZE+sizeof(up_down));
+}
+
+static void rx_complete(void *arg, void *data, int len)
+{
+ struct nic *nic = arg;
+
+ gdm_wimax_transmit_pkt(nic->netdev, data, len);
+ gdm_wimax_rcv_with_cb(nic, rx_complete, nic);
+}
+
+static void prepare_rx_complete(void *arg, void *data, int len)
+{
+ struct nic *nic = arg;
+ int ret;
+
+ ret = gdm_wimax_get_prepared_info(nic->netdev, data, len);
+ if (ret == 1)
+ gdm_wimax_rcv_with_cb(nic, rx_complete, nic);
+ else {
+ if (ret < 0)
+ printk(KERN_ERR "get_prepared_info failed(%d)\n", ret);
+ gdm_wimax_rcv_with_cb(nic, prepare_rx_complete, nic);
+ #if 0
+ /* Re-prepare WiMax device */
+ gdm_wimax_prepare_device(nic->netdev);
+ #endif
+ }
+}
+
+static void start_rx_proc(struct nic *nic)
+{
+ gdm_wimax_rcv_with_cb(nic, prepare_rx_complete, nic);
+}
+
+static struct net_device_ops gdm_netdev_ops = {
+ .ndo_open = gdm_wimax_open,
+ .ndo_stop = gdm_wimax_close,
+ .ndo_set_config = gdm_wimax_set_config,
+ .ndo_start_xmit = gdm_wimax_tx,
+ .ndo_get_stats = gdm_wimax_stats,
+ .ndo_set_mac_address = gdm_wimax_set_mac_addr,
+ .ndo_do_ioctl = gdm_wimax_ioctl,
+};
+
+int register_wimax_device(struct phy_dev *phy_dev)
+{
+ struct nic *nic = NULL;
+ struct net_device *dev;
+ int ret;
+
+ dev = (struct net_device *)alloc_netdev(sizeof(*nic),
+ "wm%d", ether_setup);
+
+ if (dev == NULL) {
+ printk(KERN_ERR "alloc_etherdev failed\n");
+ return -ENOMEM;
+ }
+
+ dev->mtu = 1400;
+ dev->netdev_ops = &gdm_netdev_ops;
+ dev->flags &= ~IFF_MULTICAST;
+ memcpy(dev->dev_addr, gdm_wimax_macaddr, sizeof(gdm_wimax_macaddr));
+
+ nic = netdev_priv(dev);
+ memset(nic, 0, sizeof(*nic));
+
+ nic->netdev = dev;
+ nic->phy_dev = phy_dev;
+ phy_dev->netdev = dev;
+
+ /* event socket init */
+ ret = gdm_wimax_event_init();
+ if (ret < 0) {
+ printk(KERN_ERR "Cannot create event.\n");
+ goto cleanup;
+ }
+
+ ret = register_netdev(dev);
+ if (ret)
+ goto cleanup;
+
+ #if defined(LOOPBACK_TEST)
+ netif_start_queue(dev);
+ netif_carrier_on(dev);
+ #else
+ netif_carrier_off(dev);
+ #endif
+
+#ifdef CONFIG_WIMAX_GDM72XX_QOS
+ gdm_qos_init(nic);
+#endif
+
+ start_rx_proc(nic);
+
+ /* Prepare WiMax device */
+ gdm_wimax_prepare_device(dev);
+
+ return 0;
+
+cleanup:
+ printk(KERN_ERR "register_netdev failed\n");
+ free_netdev(dev);
+ return ret;
+}
+
+void unregister_wimax_device(struct phy_dev *phy_dev)
+{
+ struct nic *nic = netdev_priv(phy_dev->netdev);
+ struct fsm_s *fsm = (struct fsm_s *) nic->sdk_data[SIOC_DATA_FSM].buf;
+
+ if (fsm)
+ fsm->m_status = M_INIT;
+ unregister_netdev(nic->netdev);
+
+ gdm_wimax_event_exit();
+
+#if defined(CONFIG_WIMAX_GDM72XX_QOS)
+ gdm_qos_release_list(nic);
+#endif
+
+ gdm_wimax_cleanup_ioctl(phy_dev->netdev);
+
+ free_netdev(nic->netdev);
+}
diff --git a/drivers/staging/gdm72xx/gdm_wimax.h b/drivers/staging/gdm72xx/gdm_wimax.h
new file mode 100644
index 0000000..bb6826f
--- /dev/null
+++ b/drivers/staging/gdm72xx/gdm_wimax.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef __GDM_WIMAX_H__
+#define __GDM_WIMAX_H__
+
+#include <linux/netdevice.h>
+#include <linux/version.h>
+#include <linux/types.h>
+#include "wm_ioctl.h"
+#if defined(CONFIG_WIMAX_GDM72XX_QOS)
+#include "gdm_qos.h"
+#endif
+
+#define DRIVER_VERSION "3.2.3"
+
+/*#define ETH_P_IP 0x0800 */
+/*#define ETH_P_ARP 0x0806 */
+/*#define ETH_P_IPV6 0x86DD */
+
+#define H2L(x) __cpu_to_le16(x)
+#define L2H(x) __le16_to_cpu(x)
+#define DH2L(x) __cpu_to_le32(x)
+#define DL2H(x) __le32_to_cpu(x)
+
+#define H2B(x) __cpu_to_be16(x)
+#define B2H(x) __be16_to_cpu(x)
+#define DH2B(x) __cpu_to_be32(x)
+#define DB2H(x) __be32_to_cpu(x)
+
+struct phy_dev {
+ void *priv_dev;
+ struct net_device *netdev;
+
+ int (*send_func)(void *priv_dev, void *data, int len,
+ void (*cb)(void *cb_data), void *cb_data);
+ int (*rcv_func)(void *priv_dev,
+ void (*cb)(void *cb_data, void *data, int len),
+ void *cb_data);
+};
+
+struct nic {
+ struct net_device *netdev;
+ struct phy_dev *phy_dev;
+
+ struct net_device_stats stats;
+
+ struct data_s sdk_data[SIOC_DATA_MAX];
+
+#if defined(CONFIG_WIMAX_GDM72XX_QOS)
+ struct qos_cb_s qos;
+#endif
+
+};
+
+
+#if 0
+#define dprintk(fmt, args ...) printk(KERN_DEBUG " [GDM] " fmt, ## args)
+#else
+#define dprintk(...)
+#endif
+
+/*#define DEBUG_SDU */
+#if defined(DEBUG_SDU)
+#define DUMP_SDU_ALL (1<<0)
+#define DUMP_SDU_ARP (1<<1)
+#define DUMP_SDU_IP (1<<2)
+#define DUMP_SDU_IP_TCP (1<<8)
+#define DUMP_SDU_IP_UDP (1<<9)
+#define DUMP_SDU_IP_ICMP (1<<10)
+#define DUMP_PACKET (DUMP_SDU_ALL)
+#endif
+
+/*#define DEBUG_HCI */
+
+/*#define LOOPBACK_TEST */
+
+extern int register_wimax_device(struct phy_dev *phy_dev);
+extern int gdm_wimax_send_tx(struct sk_buff *skb, struct net_device *dev);
+extern void unregister_wimax_device(struct phy_dev *phy_dev);
+
+#endif
diff --git a/drivers/staging/gdm72xx/hci.h b/drivers/staging/gdm72xx/hci.h
new file mode 100644
index 0000000..651d7b5
--- /dev/null
+++ b/drivers/staging/gdm72xx/hci.h
@@ -0,0 +1,211 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef HCI_H_20080801
+#define HCI_H_20080801
+
+#define HCI_HEADER_SIZE 4
+#define HCI_VALUE_OFFS (HCI_HEADER_SIZE)
+#define HCI_MAX_PACKET 2048
+#define HCI_MAX_PARAM (HCI_MAX_PACKET-HCI_HEADER_SIZE)
+#define HCI_MAX_TLV 32
+
+/* CMD-EVT */
+
+/* Category 0 */
+#define WIMAX_RESET 0x0000
+#define WIMAX_SET_INFO 0x0001
+#define WIMAX_GET_INFO 0x0002
+#define WIMAX_GET_INFO_RESULT 0x8003
+#define WIMAX_RADIO_OFF 0x0004
+#define WIMAX_RADIO_ON 0x0006
+#define WIMAX_WIMAX_RESET 0x0007 /* Is this still here */
+
+/* Category 1 */
+#define WIMAX_NET_ENTRY 0x0100
+#define WIMAX_NET_DISCONN 0x0102
+#define WIMAX_ENTER_SLEEP 0x0103
+#define WIMAX_EXIT_SLEEP 0x0104
+#define WIMAX_ENTER_IDLE 0x0105
+#define WIMAX_EXIT_IDLE 0x0106
+#define WIMAX_MODE_CHANGE 0x8108
+#define WIMAX_HANDOVER 0x8109 /* obsolete */
+
+#define WIMAX_SCAN 0x010d
+#define WIMAX_SCAN_COMPLETE 0x810e
+#define WIMAX_SCAN_RESULT 0x810f
+
+#define WIMAX_CONNECT 0x0110
+#define WIMAX_CONNECT_START 0x8111
+#define WIMAX_CONNECT_COMPLETE 0x8112
+#define WIMAX_ASSOC_START 0x8113
+#define WIMAX_ASSOC_COMPLETE 0x8114
+#define WIMAX_DISCONN_IND 0x8115
+#define WIMAX_ENTRY_IND 0x8116
+#define WIMAX_HO_START 0x8117
+#define WIMAX_HO_COMPLETE 0x8118
+#define WIMAX_RADIO_STATE_IND 0x8119
+#define WIMAX_IP_RENEW_IND 0x811a
+
+#define WIMAX_DISCOVER_NSP 0x011d
+#define WIMAX_DISCOVER_NSP_RESULT 0x811e
+
+#define WIMAX_SDU_TX_FLOW 0x8125
+
+/* Category 2 */
+#define WIMAX_TX_EAP 0x0200
+#define WIMAX_RX_EAP 0x8201
+#define WIMAX_TX_SDU 0x0202
+#define WIMAX_RX_SDU 0x8203
+#define WIMAX_RX_SDU_AGGR 0x8204
+#define WIMAX_TX_SDU_AGGR 0x0205
+
+/* Category 3 */
+#define WIMAX_DM_CMD 0x030a
+#define WIMAX_DM_RSP 0x830b
+
+#define WIMAX_CLI_CMD 0x030c
+#define WIMAX_CLI_RSP 0x830d
+
+#define WIMAX_DL_IMAGE 0x0310
+#define WIMAX_DL_IMAGE_STATUS 0x8311
+#define WIMAX_UL_IMAGE 0x0312
+#define WIMAX_UL_IMAGE_RESULT 0x8313
+#define WIMAX_UL_IMAGE_STATUS 0x0314
+
+#define WIMAX_EVT_MODEM_REPORT 0x8325
+
+/* Category 0xF */
+#define WIMAX_FSM_UPDATE 0x8F01
+#define WIMAX_IF_UPDOWN 0x8F02
+ #define WIMAX_IF_UP 1
+ #define WIMAX_IF_DOWN 2
+
+/* WIMAX mode */
+#define W_NULL 0
+#define W_STANDBY 1
+#define W_OOZ 2
+#define W_AWAKE 3
+#define W_IDLE 4
+#define W_SLEEP 5
+#define W_WAIT 6
+
+#define W_NET_ENTRY_RNG 0x80
+#define W_NET_ENTRY_SBC 0x81
+#define W_NET_ENTRY_PKM 0x82
+#define W_NET_ENTRY_REG 0x83
+#define W_NET_ENTRY_DSX 0x84
+
+#define W_NET_ENTRY_RNG_FAIL 0x1100100
+#define W_NET_ENTRY_SBC_FAIL 0x1100200
+#define W_NET_ENTRY_PKM_FAIL 0x1102000
+#define W_NET_ENTRY_REG_FAIL 0x1103000
+#define W_NET_ENTRY_DSX_FAIL 0x1104000
+
+/* Scan Type */
+#define W_SCAN_ALL_CHANNEL 0
+#define W_SCAN_ALL_SUBSCRIPTION 1
+#define W_SCAN_SPECIFIED_SUBSCRIPTION 2
+
+/*
+ * TLV
+ *
+ * [31:31] indicates the type is composite.
+ * [30:16] is the length of the type. 0 length means length is variable.
+ * [15:0] is the actual type.
+ *
+ */
+#define TLV_L(x) (((x) >> 16) & 0xff)
+#define TLV_T(x) ((x) & 0xff)
+#define TLV_COMPOSITE(x) ((x) >> 31)
+
+/* GENERAL */
+#define T_MAC_ADDRESS (0x00 | (6 << 16))
+#define T_BSID (0x01 | (6 << 16))
+#define T_MSK (0x02 | (64 << 16))
+#define T_RSSI_THRSHLD (0x03 | (1 << 16))
+#define T_FREQUENCY (0x04 | (4 << 16))
+#define T_CONN_CS_TYPE (0x05 | (1 << 16))
+#define T_HOST_IP_VER (0x06 | (1 << 16))
+#define T_STBY_SCAN_INTERVAL (0x07 | (4 << 16))
+#define T_OOZ_SCAN_INTERVAL (0x08 | (4 << 16))
+#define T_IMEI (0x09 | (8 << 16))
+#define T_PID (0x0a | (12 << 16))
+
+#define T_CAPABILITY (0x1a | (4 << 16))
+#define T_RELEASE_NUMBER (0x1b | (4 << 16))
+#define T_DRIVER_REVISION (0x1c | (4 << 16))
+#define T_FW_REVISION (0x1d | (4 << 16))
+#define T_MAC_HW_REVISION (0x1e | (4 << 16))
+#define T_PHY_HW_REVISION (0x1f | (4 << 16))
+
+/* HANDOVER */
+#define T_SCAN_INTERVAL (0x20 | (1 << 16))
+
+#define T_RSC_RETAIN_TIME (0x2f | (2 << 16))
+
+/* SLEEP */
+#define T_TYPE1_ISW (0x40 | (1 << 16))
+
+#define T_SLP_START_TO (0x4a | (2 << 16))
+
+/* IDLE */
+#define T_IDLE_MODE_TO (0x50 | (2 << 16))
+
+#define T_IDLE_START_TO (0x54 | (2 << 16))
+
+/* MONITOR */
+#define T_RSSI (0x60 | (1 << 16))
+#define T_CINR (0x61 | (1 << 16))
+#define T_TX_POWER (0x6a | (1 << 16))
+#define T_CUR_FREQ (0x7f | (4 << 16))
+
+
+/* WIMAX */
+#define T_MAX_SUBSCRIPTION (0xa1 | (1 << 16))
+#define T_MAX_SF (0xa2 | (1 << 16))
+#define T_PHY_TYPE (0xa3 | (1 << 16))
+#define T_PKM (0xa4 | (1 << 16))
+#define T_AUTH_POLICY (0xa5 | (1 << 16))
+#define T_CS_TYPE (0xa6 | (2 << 16))
+#define T_VENDOR_NAME (0xa7 | (0 << 16))
+#define T_MOD_NAME (0xa8 | (0 << 16))
+#define T_PACKET_FILTER (0xa9 | (1 << 16))
+#define T_NSP_CHANGE_COUNT (0xaa | (4 << 16))
+#define T_RADIO_STATE (0xab | (1 << 16))
+#define T_URI_CONTACT_TYPE (0xac | (1 << 16))
+#define T_URI_TEXT (0xad | (0 << 16))
+#define T_URI (0xae | (0 << 16))
+#define T_ENABLE_AUTH (0xaf | (1 << 16))
+#define T_TIMEOUT (0xb0 | (2 << 16))
+#define T_RUN_MODE (0xb1 | (1 << 16))
+#define T_OMADMT_VER (0xb2 | (4 << 16))
+/* This is measured in seconds from 00:00:00 GMT January 1, 1970. */
+#define T_RTC_TIME (0xb3 | (4 << 16))
+#define T_CERT_STATUS (0xb4 | (4 << 16))
+#define T_CERT_MASK (0xb5 | (4 << 16))
+#define T_EMSK (0xb6 | (64 << 16))
+
+/* Subscription TLV */
+#define T_SUBSCRIPTION_LIST (0xd1 | (0 << 16) | (1 << 31))
+#define T_H_NSPID (0xd2 | (3 << 16))
+#define T_NSP_NAME (0xd3 | (0 << 16))
+#define T_SUBSCRIPTION_NAME (0xd4 | (0 << 16))
+#define T_SUBSCRIPTION_FLAG (0xd5 | (2 << 16))
+#define T_V_NSPID (0xd6 | (3 << 16))
+#define T_NAP_ID (0xd7 | (3 << 16))
+#define T_PREAMBLES (0xd8 | (15 << 16))
+#define T_BW (0xd9 | (4 << 16))
+#define T_FFTSIZE (0xda | (4 << 16))
+#define T_DUPLEX_MODE (0xdb | (4 << 16))
+
+struct hci_s {
+ unsigned short cmd_evt;
+ unsigned short length;
+ unsigned char data[0];
+} __packed;
+
+#endif
diff --git a/drivers/staging/gdm72xx/netlink_k.c b/drivers/staging/gdm72xx/netlink_k.c
new file mode 100644
index 0000000..aaa1451
--- /dev/null
+++ b/drivers/staging/gdm72xx/netlink_k.c
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/etherdevice.h>
+#include <linux/netlink.h>
+#include <asm/byteorder.h>
+#include <net/sock.h>
+
+#if !defined(NLMSG_HDRLEN)
+#define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
+#endif
+
+#define ND_MAX_GROUP 30
+#define ND_IFINDEX_LEN sizeof(int)
+#define ND_NLMSG_SPACE(len) (NLMSG_SPACE(len) + ND_IFINDEX_LEN)
+#define ND_NLMSG_DATA(nlh) \
+ ((void *)((char *)NLMSG_DATA(nlh) + ND_IFINDEX_LEN))
+#define ND_NLMSG_S_LEN(len) (len+ND_IFINDEX_LEN)
+#define ND_NLMSG_R_LEN(nlh) (nlh->nlmsg_len-ND_IFINDEX_LEN)
+#define ND_NLMSG_IFIDX(nlh) NLMSG_DATA(nlh)
+#define ND_MAX_MSG_LEN 8096
+
+#if defined(DEFINE_MUTEX)
+static DEFINE_MUTEX(netlink_mutex);
+#else
+static struct semaphore netlink_mutex;
+#define mutex_lock(x) down(x)
+#define mutex_unlock(x) up(x)
+#endif
+
+static void (*rcv_cb)(struct net_device *dev, u16 type, void *msg, int len);
+
+static void netlink_rcv_cb(struct sk_buff *skb)
+{
+ struct nlmsghdr *nlh;
+ struct net_device *dev;
+ u32 mlen;
+ void *msg;
+ int ifindex;
+
+ if (skb->len >= NLMSG_SPACE(0)) {
+ nlh = (struct nlmsghdr *)skb->data;
+
+ if (skb->len < nlh->nlmsg_len ||
+ nlh->nlmsg_len > ND_MAX_MSG_LEN) {
+ printk(KERN_ERR "Invalid length (%d,%d)\n", skb->len,
+ nlh->nlmsg_len);
+ return;
+ }
+
+ memcpy(&ifindex, ND_NLMSG_IFIDX(nlh), ND_IFINDEX_LEN);
+ msg = ND_NLMSG_DATA(nlh);
+ mlen = ND_NLMSG_R_LEN(nlh);
+
+ if (rcv_cb) {
+ dev = dev_get_by_index(&init_net, ifindex);
+ if (dev) {
+ rcv_cb(dev, nlh->nlmsg_type, msg, mlen);
+ dev_put(dev);
+ } else
+ printk(KERN_ERR "dev_get_by_index(%d) "
+ "is not found.\n", ifindex);
+ } else
+ printk(KERN_ERR "Unregistered Callback\n");
+ }
+}
+
+static void netlink_rcv(struct sk_buff *skb)
+{
+ mutex_lock(&netlink_mutex);
+ netlink_rcv_cb(skb);
+ mutex_unlock(&netlink_mutex);
+}
+
+struct sock *netlink_init(int unit, void (*cb)(struct net_device *dev, u16 type,
+ void *msg, int len))
+{
+ struct sock *sock;
+
+#if !defined(DEFINE_MUTEX)
+ init_MUTEX(&netlink_mutex);
+#endif
+
+ sock = netlink_kernel_create(&init_net, unit, 0, netlink_rcv, NULL,
+ THIS_MODULE);
+
+ if (sock)
+ rcv_cb = cb;
+
+ return sock;
+}
+
+void netlink_exit(struct sock *sock)
+{
+ sock_release(sock->sk_socket);
+}
+
+int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len)
+{
+ static u32 seq;
+ struct sk_buff *skb = NULL;
+ struct nlmsghdr *nlh;
+ int ret = 0;
+
+ if (group > ND_MAX_GROUP) {
+ printk(KERN_ERR "Group %d is invalied.\n", group);
+ printk(KERN_ERR "Valid group is 0 ~ %d.\n", ND_MAX_GROUP);
+ return -EINVAL;
+ }
+
+ skb = alloc_skb(NLMSG_SPACE(len), GFP_ATOMIC);
+ if (!skb) {
+ printk(KERN_ERR "netlink_broadcast ret=%d\n", ret);
+ return -ENOMEM;
+ }
+
+ seq++;
+ nlh = NLMSG_PUT(skb, 0, seq, type, len);
+ memcpy(NLMSG_DATA(nlh), msg, len);
+
+ NETLINK_CB(skb).pid = 0;
+ NETLINK_CB(skb).dst_group = 0;
+
+ ret = netlink_broadcast(sock, skb, 0, group+1, GFP_ATOMIC);
+
+ if (!ret)
+ return len;
+ else {
+ if (ret != -ESRCH) {
+ printk(KERN_ERR "netlink_broadcast g=%d, t=%d, l=%d, r=%d\n",
+ group, type, len, ret);
+ }
+ ret = 0;
+ }
+
+nlmsg_failure:
+ return ret;
+}
diff --git a/drivers/staging/gdm72xx/netlink_k.h b/drivers/staging/gdm72xx/netlink_k.h
new file mode 100644
index 0000000..5c04532
--- /dev/null
+++ b/drivers/staging/gdm72xx/netlink_k.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#if !defined(NETLINK_H_20081202)
+#define NETLINK_H_20081202
+#include <linux/netdevice.h>
+#include <net/sock.h>
+
+struct sock *netlink_init(int unit,
+ void (*cb)(struct net_device *dev, u16 type, void *msg, int len));
+void netlink_exit(struct sock *sock);
+int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len);
+
+#endif
diff --git a/drivers/staging/gdm72xx/sdio_boot.c b/drivers/staging/gdm72xx/sdio_boot.c
new file mode 100644
index 0000000..e5c9714
--- /dev/null
+++ b/drivers/staging/gdm72xx/sdio_boot.c
@@ -0,0 +1,152 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/uaccess.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include <linux/mmc/core.h>
+#include <linux/mmc/card.h>
+#include <linux/mmc/sdio_func.h>
+
+#include "gdm_sdio.h"
+
+#define TYPE_A_HEADER_SIZE 4
+#define TYPE_A_LOOKAHEAD_SIZE 16
+#define YMEM0_SIZE 0x8000 /* 32kbytes */
+#define DOWNLOAD_SIZE (YMEM0_SIZE - TYPE_A_HEADER_SIZE)
+
+#define KRN_PATH "/lib/firmware/gdm72xx/gdmskrn.bin"
+#define RFS_PATH "/lib/firmware/gdm72xx/gdmsrfs.bin"
+
+static u8 *tx_buf;
+
+static int ack_ready(struct sdio_func *func)
+{
+ unsigned long start = jiffies;
+ u8 val;
+ int ret;
+
+ while ((jiffies - start) < HZ) {
+ val = sdio_readb(func, 0x13, &ret);
+ if (val & 0x01)
+ return 1;
+ schedule();
+ }
+
+ return 0;
+}
+
+static int download_image(struct sdio_func *func, char *img_name)
+{
+ int ret = 0, len, size, pno;
+ struct file *filp = NULL;
+ struct inode *inode = NULL;
+ u8 *buf = tx_buf;
+ loff_t pos = 0;
+
+ filp = filp_open(img_name, O_RDONLY | O_LARGEFILE, 0);
+ if (IS_ERR(filp)) {
+ printk(KERN_ERR "Can't find %s.\n", img_name);
+ return -ENOENT;
+ }
+
+ if (filp->f_dentry)
+ inode = filp->f_dentry->d_inode;
+ if (!inode || !S_ISREG(inode->i_mode)) {
+ printk(KERN_ERR "Invalid file type: %s\n", img_name);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ size = i_size_read(inode->i_mapping->host);
+ if (size <= 0) {
+ printk(KERN_ERR "Unable to find file size: %s\n", img_name);
+ ret = size;
+ goto out;
+ }
+
+ pno = 0;
+ while ((len = filp->f_op->read(filp, buf + TYPE_A_HEADER_SIZE,
+ DOWNLOAD_SIZE, &pos))) {
+ if (len < 0) {
+ ret = -1;
+ goto out;
+ }
+
+ buf[0] = len & 0xff;
+ buf[1] = (len >> 8) & 0xff;
+ buf[2] = (len >> 16) & 0xff;
+
+ if (pos >= size) /* The last packet */
+ buf[3] = 2;
+ else
+ buf[3] = 0;
+
+ ret = sdio_memcpy_toio(func, 0, buf, len + TYPE_A_HEADER_SIZE);
+ if (ret < 0) {
+ printk(KERN_ERR "gdmwm: send image error: "
+ "packet number = %d ret = %d\n", pno, ret);
+ goto out;
+ }
+ if (buf[3] == 2) /* The last packet */
+ break;
+ if (!ack_ready(func)) {
+ ret = -EIO;
+ printk(KERN_ERR "gdmwm: Ack is not ready.\n");
+ goto out;
+ }
+ ret = sdio_memcpy_fromio(func, buf, 0, TYPE_A_LOOKAHEAD_SIZE);
+ if (ret < 0) {
+ printk(KERN_ERR "gdmwm: receive ack error: "
+ "packet number = %d ret = %d\n", pno, ret);
+ goto out;
+ }
+ sdio_writeb(func, 0x01, 0x13, &ret);
+ sdio_writeb(func, 0x00, 0x10, &ret); /* PCRRT */
+
+ pno++;
+ }
+out:
+ filp_close(filp, current->files);
+ return ret;
+}
+
+int sdio_boot(struct sdio_func *func)
+{
+ static mm_segment_t fs;
+ int ret;
+
+ tx_buf = kmalloc(YMEM0_SIZE, GFP_KERNEL);
+ if (tx_buf == NULL) {
+ printk(KERN_ERR "Error: kmalloc: %s %d\n", __func__, __LINE__);
+ return -ENOMEM;
+ }
+
+ fs = get_fs();
+ set_fs(get_ds());
+
+ ret = download_image(func, KRN_PATH);
+ if (ret)
+ goto restore_fs;
+ printk(KERN_INFO "GCT: Kernel download success.\n");
+
+ ret = download_image(func, RFS_PATH);
+ if (ret)
+ goto restore_fs;
+ printk(KERN_INFO "GCT: Filesystem download success.\n");
+
+restore_fs:
+ set_fs(fs);
+ kfree(tx_buf);
+ return ret;
+}
diff --git a/drivers/staging/gdm72xx/sdio_boot.h b/drivers/staging/gdm72xx/sdio_boot.h
new file mode 100644
index 0000000..b4c40cb
--- /dev/null
+++ b/drivers/staging/gdm72xx/sdio_boot.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef __SDIO_BOOT_H__
+#define __SDIO_BOOT_H__
+
+struct sdio_func;
+
+extern int sdio_boot(struct sdio_func *func);
+
+#endif /* __SDIO_BOOT_H__ */
diff --git a/drivers/staging/gdm72xx/usb_boot.c b/drivers/staging/gdm72xx/usb_boot.c
new file mode 100644
index 0000000..0eca205
--- /dev/null
+++ b/drivers/staging/gdm72xx/usb_boot.c
@@ -0,0 +1,397 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <linux/uaccess.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/usb.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+
+#include <asm/byteorder.h>
+#include "gdm_usb.h"
+#include "usb_boot.h"
+
+#define DN_KERNEL_MAGIC_NUMBER 0x10760001
+#define DN_ROOTFS_MAGIC_NUMBER 0x10760002
+
+#define DOWNLOAD_SIZE 1024
+
+#define DH2B(x) __cpu_to_be32(x)
+#define DL2H(x) __le32_to_cpu(x)
+
+#define MIN(a, b) ((a) > (b) ? (b) : (a))
+
+#define MAX_IMG_CNT 16
+#define UIMG_PATH "/lib/firmware/gdm72xx/gdmuimg.bin"
+#define KERN_PATH "/lib/firmware/gdm72xx/zImage"
+#define FS_PATH "/lib/firmware/gdm72xx/ramdisk.jffs2"
+
+struct dn_header {
+ u32 magic_num;
+ u32 file_size;
+};
+
+struct img_header {
+ u32 magic_code;
+ u32 count;
+ u32 len;
+ u32 offset[MAX_IMG_CNT];
+ char hostname[32];
+ char date[32];
+};
+
+struct fw_info {
+ u32 id;
+ u32 len;
+ u32 kernel_len;
+ u32 rootfs_len;
+ u32 kernel_offset;
+ u32 rootfs_offset;
+ u32 fw_ver;
+ u32 mac_ver;
+ char hostname[32];
+ char userid[16];
+ char date[32];
+ char user_desc[128];
+};
+
+static void array_le32_to_cpu(u32 *arr, int num)
+{
+ int i;
+ for (i = 0; i < num; i++, arr++)
+ *arr = DL2H(*arr);
+}
+
+static u8 *tx_buf;
+
+static int gdm_wibro_send(struct usb_device *usbdev, void *data, int len)
+{
+ int ret;
+ int actual;
+
+ ret = usb_bulk_msg(usbdev, usb_sndbulkpipe(usbdev, 1), data, len,
+ &actual, 1000);
+
+ if (ret < 0) {
+ printk(KERN_ERR "Error : usb_bulk_msg ( result = %d )\n", ret);
+ return ret;
+ }
+ return 0;
+}
+
+static int gdm_wibro_recv(struct usb_device *usbdev, void *data, int len)
+{
+ int ret;
+ int actual;
+
+ ret = usb_bulk_msg(usbdev, usb_rcvbulkpipe(usbdev, 2), data, len,
+ &actual, 5000);
+
+ if (ret < 0) {
+ printk(KERN_ERR "Error : usb_bulk_msg(recv) ( result = %d )\n",
+ ret);
+ return ret;
+ }
+ return 0;
+}
+
+static int download_image(struct usb_device *usbdev, struct file *filp,
+ loff_t *pos, u32 img_len, u32 magic_num)
+{
+ struct dn_header h;
+ int ret = 0;
+ u32 size;
+ int len, readn;
+
+ size = (img_len + DOWNLOAD_SIZE - 1) & ~(DOWNLOAD_SIZE - 1);
+ h.magic_num = DH2B(magic_num);
+ h.file_size = DH2B(size);
+
+ ret = gdm_wibro_send(usbdev, &h, sizeof(h));
+ if (ret < 0)
+ goto out;
+
+ readn = 0;
+ while ((len = filp->f_op->read(filp, tx_buf, DOWNLOAD_SIZE, pos))) {
+
+ if (len < 0) {
+ ret = -1;
+ goto out;
+ }
+ readn += len;
+
+ ret = gdm_wibro_send(usbdev, tx_buf, DOWNLOAD_SIZE);
+ if (ret < 0)
+ goto out;
+ if (readn >= img_len)
+ break;
+ }
+
+ if (readn < img_len) {
+ printk(KERN_ERR "gdmwm: Cannot read to the requested size. "
+ "Read = %d Requested = %d\n", readn, img_len);
+ ret = -EIO;
+ }
+out:
+
+ return ret;
+}
+
+int usb_boot(struct usb_device *usbdev, u16 pid)
+{
+ int i, ret = 0;
+ struct file *filp = NULL;
+ struct inode *inode = NULL;
+ static mm_segment_t fs;
+ struct img_header hdr;
+ struct fw_info fw_info;
+ loff_t pos = 0;
+ char *img_name = UIMG_PATH;
+ int len;
+
+ tx_buf = kmalloc(DOWNLOAD_SIZE, GFP_KERNEL);
+ if (tx_buf == NULL) {
+ printk(KERN_ERR "Error: kmalloc\n");
+ return -ENOMEM;
+ }
+
+ fs = get_fs();
+ set_fs(get_ds());
+
+ filp = filp_open(img_name, O_RDONLY | O_LARGEFILE, 0);
+ if (IS_ERR(filp)) {
+ printk(KERN_ERR "Can't find %s.\n", img_name);
+ set_fs(fs);
+ ret = -ENOENT;
+ goto restore_fs;
+ }
+
+ if (filp->f_dentry)
+ inode = filp->f_dentry->d_inode;
+ if (!inode || !S_ISREG(inode->i_mode)) {
+ printk(KERN_ERR "Invalid file type: %s\n", img_name);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ len = filp->f_op->read(filp, (u8 *)&hdr, sizeof(hdr), &pos);
+ if (len != sizeof(hdr)) {
+ printk(KERN_ERR "gdmwm: Cannot read the image info.\n");
+ ret = -EIO;
+ goto out;
+ }
+
+ array_le32_to_cpu((u32 *)&hdr, 19);
+#if 0
+ if (hdr.magic_code != 0x10767fff) {
+ printk(KERN_ERR "gdmwm: Invalid magic code 0x%08x\n",
+ hdr.magic_code);
+ ret = -EINVAL;
+ goto out;
+ }
+#endif
+ if (hdr.count > MAX_IMG_CNT) {
+ printk(KERN_ERR "gdmwm: Too many images. %d\n", hdr.count);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ for (i = 0; i < hdr.count; i++) {
+ if (hdr.offset[i] > hdr.len) {
+ printk(KERN_ERR "gdmwm: Invalid offset. "
+ "Entry = %d Offset = 0x%08x "
+ "Image length = 0x%08x\n",
+ i, hdr.offset[i], hdr.len);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ pos = hdr.offset[i];
+ len = filp->f_op->read(filp, (u8 *)&fw_info, sizeof(fw_info),
+ &pos);
+ if (len != sizeof(fw_info)) {
+ printk(KERN_ERR "gdmwm: Cannot read the FW info.\n");
+ ret = -EIO;
+ goto out;
+ }
+
+ array_le32_to_cpu((u32 *)&fw_info, 8);
+#if 0
+ if ((fw_info.id & 0xfffff000) != 0x10767000) {
+ printk(KERN_ERR "gdmwm: Invalid FW id. 0x%08x\n",
+ fw_info.id);
+ ret = -EIO;
+ goto out;
+ }
+#endif
+
+ if ((fw_info.id & 0xffff) != pid)
+ continue;
+
+ pos = hdr.offset[i] + fw_info.kernel_offset;
+ ret = download_image(usbdev, filp, &pos, fw_info.kernel_len,
+ DN_KERNEL_MAGIC_NUMBER);
+ if (ret < 0)
+ goto out;
+ printk(KERN_INFO "GCT: Kernel download success.\n");
+
+ pos = hdr.offset[i] + fw_info.rootfs_offset;
+ ret = download_image(usbdev, filp, &pos, fw_info.rootfs_len,
+ DN_ROOTFS_MAGIC_NUMBER);
+ if (ret < 0)
+ goto out;
+ printk(KERN_INFO "GCT: Filesystem download success.\n");
+
+ break;
+ }
+
+ if (i == hdr.count) {
+ printk(KERN_ERR "Firmware for gsk%x is not installed.\n", pid);
+ ret = -EINVAL;
+ }
+out:
+ filp_close(filp, current->files);
+
+restore_fs:
+ set_fs(fs);
+ kfree(tx_buf);
+ return ret;
+}
+
+/*#define GDM7205_PADDING 256 */
+#define DOWNLOAD_CHUCK 2048
+#define KERNEL_TYPE_STRING "linux"
+#define FS_TYPE_STRING "rootfs"
+
+static int em_wait_ack(struct usb_device *usbdev, int send_zlp)
+{
+ int ack;
+ int ret = -1;
+
+ if (send_zlp) {
+ /*Send ZLP*/
+ ret = gdm_wibro_send(usbdev, NULL, 0);
+ if (ret < 0)
+ goto out;
+ }
+
+ /*Wait for ACK*/
+ ret = gdm_wibro_recv(usbdev, &ack, sizeof(ack));
+ if (ret < 0)
+ goto out;
+out:
+ return ret;
+}
+
+static int em_download_image(struct usb_device *usbdev, char *path,
+ char *type_string)
+{
+ struct file *filp;
+ struct inode *inode;
+ static mm_segment_t fs;
+ char *buf = NULL;
+ loff_t pos = 0;
+ int ret = 0;
+ int len, readn = 0;
+ #if defined(GDM7205_PADDING)
+ const int pad_size = GDM7205_PADDING;
+ #else
+ const int pad_size = 0;
+ #endif
+
+ fs = get_fs();
+ set_fs(get_ds());
+
+ filp = filp_open(path, O_RDONLY | O_LARGEFILE, 0);
+ if (IS_ERR(filp)) {
+ printk(KERN_ERR "Can't find %s.\n", path);
+ set_fs(fs);
+ ret = -ENOENT;
+ goto restore_fs;
+ }
+
+ if (filp->f_dentry) {
+ inode = filp->f_dentry->d_inode;
+ if (!inode || !S_ISREG(inode->i_mode)) {
+ printk(KERN_ERR "Invalid file type: %s\n", path);
+ ret = -EINVAL;
+ goto out;
+ }
+ }
+
+ buf = kmalloc(DOWNLOAD_CHUCK + pad_size, GFP_KERNEL);
+ if (buf == NULL) {
+ printk(KERN_ERR "Error: kmalloc\n");
+ return -ENOMEM;
+ }
+
+ strcpy(buf+pad_size, type_string);
+ ret = gdm_wibro_send(usbdev, buf, strlen(type_string)+pad_size);
+ if (ret < 0)
+ goto out;
+
+ while ((len = filp->f_op->read(filp, buf+pad_size, DOWNLOAD_CHUCK,
+ &pos))) {
+ if (len < 0) {
+ ret = -1;
+ goto out;
+ }
+ readn += len;
+
+ ret = gdm_wibro_send(usbdev, buf, len+pad_size);
+ if (ret < 0)
+ goto out;
+
+ ret = em_wait_ack(usbdev, ((len+pad_size) % 512 == 0));
+ if (ret < 0)
+ goto out;
+ }
+
+ ret = em_wait_ack(usbdev, 1);
+ if (ret < 0)
+ goto out;
+
+out:
+ filp_close(filp, current->files);
+
+restore_fs:
+ set_fs(fs);
+
+ kfree(buf);
+
+ return ret;
+}
+
+static int em_fw_reset(struct usb_device *usbdev)
+{
+ int ret;
+
+ /*Send ZLP*/
+ ret = gdm_wibro_send(usbdev, NULL, 0);
+ return ret;
+}
+
+int usb_emergency(struct usb_device *usbdev)
+{
+ int ret;
+
+ ret = em_download_image(usbdev, KERN_PATH, KERNEL_TYPE_STRING);
+ if (ret < 0)
+ goto out;
+ printk(KERN_INFO "GCT Emergency: Kernel download success.\n");
+
+ ret = em_download_image(usbdev, FS_PATH, FS_TYPE_STRING);
+ if (ret < 0)
+ goto out;
+ printk(KERN_INFO "GCT Emergency: Filesystem download success.\n");
+
+ ret = em_fw_reset(usbdev);
+out:
+ return ret;
+}
diff --git a/drivers/staging/gdm72xx/usb_boot.h b/drivers/staging/gdm72xx/usb_boot.h
new file mode 100644
index 0000000..705b531
--- /dev/null
+++ b/drivers/staging/gdm72xx/usb_boot.h
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef __USB_BOOT_H__
+#define __USB_BOOT_H__
+
+struct usb_device;
+
+extern int usb_boot(struct usb_device *usbdev, u16 pid);
+extern int usb_emergency(struct usb_device *usbdev);
+
+#endif /* __USB_BOOT_H__ */
diff --git a/drivers/staging/gdm72xx/usb_ids.h b/drivers/staging/gdm72xx/usb_ids.h
new file mode 100644
index 0000000..c100ea6
--- /dev/null
+++ b/drivers/staging/gdm72xx/usb_ids.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef __USB_IDS_H__
+#define __USB_IDS_H__
+
+/*You can replace vendor-ID as yours.*/
+#define GCT_VID 0x1076
+
+/*You can replace product-ID as yours.*/
+#define GCT_PID1 0x7e00
+#define GCT_PID2 0x7f00
+
+#define USB_DEVICE_ID_MATCH_DEVICE_INTERFACE \
+ (USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_CLASS)
+
+#define USB_DEVICE_INTF(vend, prod, intf) \
+ .match_flags = USB_DEVICE_ID_MATCH_DEVICE_INTERFACE, \
+ .idVendor = (vend), .idProduct = (prod), .bInterfaceClass = (intf)
+
+#define EMERGENCY_PID 0x720f
+#define BL_PID_MASK 0xffc0
+
+#define USB_DEVICE_BOOTLOADER(vid, pid) \
+ {USB_DEVICE((vid), ((pid)&BL_PID_MASK)|B_DOWNLOAD)}, \
+ {USB_DEVICE((vid), ((pid)&BL_PID_MASK)|B_DOWNLOAD|B_DIFF_DL_DRV)}
+
+#define USB_DEVICE_CDC_DATA(vid, pid) \
+ {USB_DEVICE_INTF((vid), (pid), USB_CLASS_CDC_DATA)}
+
+static const struct usb_device_id id_table[] = {
+ USB_DEVICE_BOOTLOADER(GCT_VID, GCT_PID1),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x1),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x2),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x3),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x4),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x5),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x6),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x7),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x8),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0x9),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0xa),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0xb),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0xc),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0xd),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0xe),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID1+0xf),
+
+ USB_DEVICE_BOOTLOADER(GCT_VID, GCT_PID2),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x1),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x2),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x3),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x4),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x5),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x6),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x7),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x8),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0x9),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0xa),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0xb),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0xc),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0xd),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0xe),
+ USB_DEVICE_CDC_DATA(GCT_VID, GCT_PID2+0xf),
+
+ {USB_DEVICE(GCT_VID, EMERGENCY_PID)},
+ { }
+};
+
+#endif /* __USB_IDS_H__ */
diff --git a/drivers/staging/gdm72xx/wm_ioctl.h b/drivers/staging/gdm72xx/wm_ioctl.h
new file mode 100644
index 0000000..4a88999
--- /dev/null
+++ b/drivers/staging/gdm72xx/wm_ioctl.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#if !defined(WM_IOCTL_H_20080714)
+#define WM_IOCTL_H_20080714
+#if !defined(__KERNEL__)
+#include <net/if.h>
+#endif
+
+#define NETLINK_WIMAX 31
+
+#define SIOCWMIOCTL SIOCDEVPRIVATE
+
+#define SIOCG_DATA 0x8D10
+#define SIOCS_DATA 0x8D11
+
+enum {
+ SIOC_DATA_FSM,
+ SIOC_DATA_NETLIST,
+ SIOC_DATA_CONNNSP,
+ SIOC_DATA_CONNCOMP,
+ SIOC_DATA_PROFILEID,
+
+ SIOC_DATA_END
+};
+
+#define SIOC_DATA_MAX 16
+
+/* FSM */
+enum {
+ M_INIT = 0,
+ M_OPEN_OFF,
+ M_OPEN_ON,
+ M_SCAN,
+ M_CONNECTING,
+ M_CONNECTED,
+ M_FSM_END,
+
+ C_INIT = 0,
+ C_CONNSTART,
+ C_ASSOCSTART,
+ C_RNG,
+ C_SBC,
+ C_AUTH,
+ C_REG,
+ C_DSX,
+ C_ASSOCCOMPLETE,
+ C_CONNCOMPLETE,
+ C_FSM_END,
+
+ D_INIT = 0,
+ D_READY,
+ D_LISTEN,
+ D_IPACQUISITION,
+
+ END_FSM
+};
+
+struct fsm_s {
+ int m_status; /*main status*/
+ int c_status; /*connection status*/
+ int d_status; /*oma-dm status*/
+};
+
+struct data_s {
+ int size;
+ void *buf;
+};
+
+struct wm_req_s {
+ union {
+ char ifrn_name[IFNAMSIZ];
+ } ifr_ifrn;
+
+ unsigned short cmd;
+
+ unsigned short data_id;
+ struct data_s data;
+
+/* NOTE: sizeof(struct wm_req_s) must be less than sizeof(struct ifreq). */
+};
+
+#ifndef ifr_name
+#define ifr_name ifr_ifrn.ifrn_name
+#endif
+
+#endif
--
1.7.7.3
--
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