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Date: Sat, 19 Jan 2008 16:37:26 +0200
From: Felipe Balbi <me@...ipebalbi.com>
To: linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org
Cc: david-b@...bell.net, tony@...mide.com,
Felipe Balbi <me@...ipebalbi.com>
Subject: [PATCH] USB: OTG: Make otg_tpl come from platform_data
This is applicable to n8X0. It makes otg tpl come
from musb_platform_data and be initialized in otg.c
This provides a better code style and better handling
of otg capable devices.
Signed-off-by: Felipe Balbi <me@...ipebalbi.com>
---
arch/arm/mach-omap2/board-n800-usb.c | 14 +++++++++++
drivers/usb/core/otg.c | 43 ++++------------------------------
drivers/usb/musb/musb_core.c | 4 +++
include/linux/usb/musb.h | 5 ++++
include/linux/usb/otg.h | 5 ++++
5 files changed, 33 insertions(+), 38 deletions(-)
diff --git a/arch/arm/mach-omap2/board-n800-usb.c b/arch/arm/mach-omap2/board-n800-usb.c
index 7599f64..a2ea1a0 100644
--- a/arch/arm/mach-omap2/board-n800-usb.c
+++ b/arch/arm/mach-omap2/board-n800-usb.c
@@ -15,6 +15,7 @@
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/usb/musb.h>
+#include <linux/usb.h>
#include <asm/arch/gpmc.h>
#include <asm/arch/gpio.h>
#include <asm/arch/pm.h>
@@ -35,6 +36,16 @@ static int tusb_set_clock(struct clk *osc_ck, int state);
# define BOARD_MODE MUSB_HOST
#endif
+#ifdef CONFIG_USB_OTG_WHITELIST
+struct usb_device_id otg_tpl[] __initdata = {
+ /* Support known mass storage devices */
+ { USB_DEVICE(0x0421, 0x0431), }, /* N770 */
+ { USB_DEVICE(0x0421, 0x04c3), }, /* N800 */
+ { USB_DEVICE(0x0421, 0x0096), }, /* RX44 */
+ { } /* Terminating entry */
+};
+#endif
+
static struct musb_hdrc_platform_data tusb_data = {
.mode = BOARD_MODE,
.multipoint = 1,
@@ -43,6 +54,9 @@ static struct musb_hdrc_platform_data tusb_data = {
.min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */
.power = 100, /* Max 100 mA VBUS for host mode */
.clock = "osc_ck",
+#ifdef CONFIG_USB_OTG_WHITELIST
+ .otg_tpl = otg_tpl,
+#endif
};
/*
diff --git a/drivers/usb/core/otg.c b/drivers/usb/core/otg.c
index 9a2ce7e..8795382 100644
--- a/drivers/usb/core/otg.c
+++ b/drivers/usb/core/otg.c
@@ -13,6 +13,7 @@
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/usb/otg.h>
+#include <linux/platform_device.h>
static struct otg_transceiver *xceiv;
@@ -60,43 +61,6 @@ EXPORT_SYMBOL(otg_set_error);
#ifdef CONFIG_USB_OTG_WHITELIST
-/*
- * This OTG Whitelist is the OTG "Targeted Peripheral List". It should
- * mostly use of USB_DEVICE() or USB_DEVICE_VER() entries..
- *
- * YOU _SHOULD_ CHANGE THIS LIST TO MATCH YOUR PRODUCT AND ITS TESTING!
- */
-
-static struct usb_device_id whitelist_table [] __initdata = {
-
-/* hubs are optional in OTG, but very handy ... */
-{ USB_DEVICE_INFO(USB_CLASS_HUB, 0, 0), },
-{ USB_DEVICE_INFO(USB_CLASS_HUB, 0, 1), },
-
-#ifdef CONFIG_USB_PRINTER /* ignoring nonstatic linkage! */
-/* FIXME actually, printers are NOT supposed to use device classes;
- * they're supposed to use interface classes...
- */
-{ USB_DEVICE_INFO(7, 1, 1) },
-{ USB_DEVICE_INFO(7, 1, 2) },
-{ USB_DEVICE_INFO(7, 1, 3) },
-#endif
-
-#ifdef CONFIG_USB_NET_CDCETHER
-/* Linux-USB CDC Ethernet gadget */
-{ USB_DEVICE(0x0525, 0xa4a1), },
-/* Linux-USB CDC Ethernet + RNDIS gadget */
-{ USB_DEVICE(0x0525, 0xa4a2), },
-#endif
-
-#if defined(CONFIG_USB_TEST) || defined(CONFIG_USB_TEST_MODULE)
-/* gadget zero, for testing */
-{ USB_DEVICE(0x0525, 0xa4a0), },
-#endif
-
-{ } /* Terminating entry */
-};
-
struct otg_device {
struct list_head list;
struct usb_device_id id;
@@ -220,10 +184,13 @@ targeted:
static int __init tpl_init(void)
{
INIT_LIST_HEAD(&tpl_devices);
- tpl_add_devices(whitelist_table);
+
if (xceiv)
xceiv->tpl_enabled = 1;
+ if (xceiv->otg_tpl != NULL)
+ tpl_add_devices(xceiv->otg_tpl);
+
return 0;
}
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index fb37e2c..cf29bde 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1939,6 +1939,10 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
musb->set_clock = plat->set_clock;
musb->min_power = plat->min_power;
+#ifdef CONFIG_USB_OTG_WHITELIST
+ musb->xceiv.otg_tpl = plat->otg_tpl;
+#endif
+
/* Clock usage is chip-specific ... functional clock (DaVinci,
* OMAP2430), or PHY ref (some TUSB6010 boards). All this core
* code does is make sure a clock handle is available; platform
diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
index d325a0d..76f21b7 100644
--- a/include/linux/usb/musb.h
+++ b/include/linux/usb/musb.h
@@ -7,6 +7,8 @@
* key configuration differences between boards.
*/
+#include <linux/mod_devicetable.h>
+
/* The USB role is defined by the connector used on the board, so long as
* standards are being followed. (Developer boards sometimes won't.)
*/
@@ -26,6 +28,9 @@ struct musb_hdrc_platform_data {
/* for clk_get() */
const char *clock;
+ /* OTG Targeted Peripheral List */
+ struct usb_device_id *otg_tpl;
+
/* (HOST or OTG) switch VBUS on/off */
int (*set_vbus)(struct device *dev, int is_on);
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index e748030..79c36fc 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -1,5 +1,7 @@
// include/linux/usb/otg.h
+#include <linux/mod_devicetable.h>
+
/*
* These APIs may be used between USB controllers. USB device drivers
* (for either host or peripheral roles) don't use these calls; they
@@ -57,6 +59,9 @@ struct otg_transceiver {
struct usb_bus *host;
struct usb_gadget *gadget;
+ /* OTG Target Peripheral List */
+ struct usb_device_id *otg_tpl;
+
/* to pass extra port status to the root hub */
u16 port_status;
u16 port_change;
--
1.5.4.rc3.24.gb53139
--
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