Merge branch 'quilt/usb'

Conflicts:
	drivers/usb/gadget/rndis.c

5 files changed, 188 insertions, 34 deletions

diff --git a/include/linux/init.h b/include/linux/init.h
index de994304e0bb..577671c55153 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -46,16 +46,23 @@
 #define __exitdata	__section(.exit.data)
 #define __exit_call	__used __section(.exitcall.exit)
 
-/* modpost check for section mismatches during the kernel build.
+/*
+ * modpost check for section mismatches during the kernel build.
  * A section mismatch happens when there are references from a
  * code or data section to an init section (both code or data).
  * The init sections are (for most archs) discarded by the kernel
  * when early init has completed so all such references are potential bugs.
  * For exit sections the same issue exists.
+ *
  * The following markers are used for the cases where the reference to
  * the *init / *exit section (code or data) is valid and will teach
- * modpost not to issue a warning.
- * The markers follow same syntax rules as __init / __initdata. */
+ * modpost not to issue a warning.  Intended semantics is that a code or
+ * data tagged __ref* can reference code or data from init section without
+ * producing a warning (of course, no warning does not mean code is
+ * correct, so optimally document why the __ref is needed and why it's OK).
+ *
+ * The markers follow same syntax rules as __init / __initdata.
+ */
 #define __ref            __section(.ref.text) noinline
 #define __refdata        __section(.ref.data)
 #define __refconst       __section(.ref.rodata)
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index da2ed77d3e8d..b0f7e9f57176 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -808,4 +808,14 @@ enum usb_device_state {
 	 */
 };
 
+/*-------------------------------------------------------------------------*/
+
+/*
+ * As per USB compliance update, a device that is actively drawing
+ * more than 100mA from USB must report itself as bus-powered in
+ * the GetStatus(DEVICE) call.
+ * http://compliance.usb.org/index.asp?UpdateFile=Electrical&Format=Standard#34
+ */
+#define USB_SELF_POWER_VBUS_MAX_DRAW		100
+
 #endif /* __LINUX_USB_CH9_H */
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index 617068134ae8..3d29a7dcac2d 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -161,8 +161,6 @@ ep_choose(struct usb_gadget *g, struct usb_endpoint_descriptor *hs,
  *	and by language IDs provided in control requests.
  * @descriptors: Table of descriptors preceding all function descriptors.
  *	Examples include OTG and vendor-specific descriptors.
- * @bind: Called from @usb_add_config() to allocate resources unique to this
- *	configuration and to call @usb_add_function() for each function used.
  * @unbind: Reverses @bind; called as a side effect of unregistering the
  *	driver which added this configuration.
  * @setup: Used to delegate control requests that aren't handled by standard
@@ -207,8 +205,7 @@ struct usb_configuration {
 	 * we can't restructure things to avoid mismatching...
 	 */
 
-	/* configuration management:  bind/unbind */
-	int			(*bind)(struct usb_configuration *);
+	/* configuration management: unbind/setup */
 	void			(*unbind)(struct usb_configuration *);
 	int			(*setup)(struct usb_configuration *,
 					const struct usb_ctrlrequest *);
@@ -232,20 +229,24 @@ struct usb_configuration {
 };
 
 int usb_add_config(struct usb_composite_dev *,
-		struct usb_configuration *);
+		struct usb_configuration *,
+		int (*)(struct usb_configuration *));
 
 /**
  * struct usb_composite_driver - groups configurations into a gadget
  * @name: For diagnostics, identifies the driver.
+ * @iProduct: Used as iProduct override if @dev->iProduct is not set.
+ *	If NULL value of @name is taken.
+ * @iManufacturer: Used as iManufacturer override if @dev->iManufacturer is
+ *	not set. If NULL a default "<system> <release> with <udc>" value
+ *	will be used.
  * @dev: Template descriptor for the device, including default device
  *	identifiers.
  * @strings: tables of strings, keyed by identifiers assigned during bind()
  *	and language IDs provided in control requests
- * @bind: (REQUIRED) Used to allocate resources that are shared across the
- *	whole device, such as string IDs, and add its configurations using
- *	@usb_add_config().  This may fail by returning a negative errno
- *	value; it should return zero on successful initialization.
- * @unbind: Reverses @bind(); called as a side effect of unregistering
+ * @needs_serial: set to 1 if the gadget needs userspace to provide
+ * 	a serial number.  If one is not provided, warning will be printed.
+ * @unbind: Reverses bind; called as a side effect of unregistering
  *	this driver.
  * @disconnect: optional driver disconnect method
  * @suspend: Notifies when the host stops sending USB traffic,
@@ -256,7 +257,7 @@ int usb_add_config(struct usb_composite_dev *,
  * Devices default to reporting self powered operation.  Devices which rely
  * on bus powered operation should report this in their @bind() method.
  *
- * Before returning from @bind, various fields in the template descriptor
+ * Before returning from bind, various fields in the template descriptor
  * may be overridden.  These include the idVendor/idProduct/bcdDevice values
  * normally to bind the appropriate host side driver, and the three strings
  * (iManufacturer, iProduct, iSerialNumber) normally used to provide user
@@ -266,15 +267,12 @@ int usb_add_config(struct usb_composite_dev *,
  */
 struct usb_composite_driver {
 	const char				*name;
+	const char				*iProduct;
+	const char				*iManufacturer;
 	const struct usb_device_descriptor	*dev;
 	struct usb_gadget_strings		**strings;
+	unsigned		needs_serial:1;
 
-	/* REVISIT:  bind() functions can be marked __init, which
-	 * makes trouble for section mismatch analysis.  See if
-	 * we can't restructure things to avoid mismatching...
-	 */
-
-	int			(*bind)(struct usb_composite_dev *);
 	int			(*unbind)(struct usb_composite_dev *);
 
 	void			(*disconnect)(struct usb_composite_dev *);
@@ -284,8 +282,9 @@ struct usb_composite_driver {
 	void			(*resume)(struct usb_composite_dev *);
 };
 
-extern int usb_composite_register(struct usb_composite_driver *);
-extern void usb_composite_unregister(struct usb_composite_driver *);
+extern int usb_composite_probe(struct usb_composite_driver *driver,
+			       int (*bind)(struct usb_composite_dev *cdev));
+extern void usb_composite_unregister(struct usb_composite_driver *driver);
 
 
 /**
@@ -334,6 +333,9 @@ struct usb_composite_dev {
 	struct list_head		configs;
 	struct usb_composite_driver	*driver;
 	u8				next_string_id;
+	u8				manufacturer_override;
+	u8				product_override;
+	u8				serial_override;
 
 	/* the gadget driver won't enable the data pullup
 	 * while the deactivation count is nonzero.
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index d3ef42d7d2f0..006412ce2303 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -705,11 +705,6 @@ static inline int usb_gadget_disconnect(struct usb_gadget *gadget)
  * struct usb_gadget_driver - driver for usb 'slave' devices
  * @function: String describing the gadget's function
  * @speed: Highest speed the driver handles.
- * @bind: Invoked when the driver is bound to a gadget, usually
- *	after registering the driver.
- *	At that point, ep0 is fully initialized, and ep_list holds
- *	the currently-available endpoints.
- *	Called in a context that permits sleeping.
  * @setup: Invoked for ep0 control requests that aren't handled by
  *	the hardware level driver. Most calls must be handled by
  *	the gadget driver, including descriptor and configuration
@@ -774,7 +769,6 @@ static inline int usb_gadget_disconnect(struct usb_gadget *gadget)
 struct usb_gadget_driver {
 	char			*function;
 	enum usb_device_speed	speed;
-	int			(*bind)(struct usb_gadget *);
 	void			(*unbind)(struct usb_gadget *);
 	int			(*setup)(struct usb_gadget *,
 					const struct usb_ctrlrequest *);
@@ -798,17 +792,19 @@ struct usb_gadget_driver {
  */
 
 /**
- * usb_gadget_register_driver - register a gadget driver
- * @driver:the driver being registered
+ * usb_gadget_probe_driver - probe a gadget driver
+ * @driver: the driver being registered
+ * @bind: the driver's bind callback
  * Context: can sleep
  *
  * Call this in your gadget driver's module initialization function,
  * to tell the underlying usb controller driver about your driver.
- * The driver's bind() function will be called to bind it to a
- * gadget before this registration call returns.  It's expected that
- * the bind() functions will be in init sections.
+ * The @bind() function will be called to bind it to a gadget before this
+ * registration call returns.  It's expected that the @bind() function will
+ * be in init sections.
  */
-int usb_gadget_register_driver(struct usb_gadget_driver *driver);
+int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
+		int (*bind)(struct usb_gadget *));
 
 /**
  * usb_gadget_unregister_driver - unregister a gadget driver
diff --git a/include/linux/usb/langwell_otg.h b/include/linux/usb/langwell_otg.h
new file mode 100644
index 000000000000..a6562f1d4e2b
--- /dev/null
+++ b/include/linux/usb/langwell_otg.h
@@ -0,0 +1,139 @@
+/*
+ * Intel Langwell USB OTG transceiver driver
+ * Copyright (C) 2008, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef __LANGWELL_OTG_H
+#define __LANGWELL_OTG_H
+
+#include <linux/usb/intel_mid_otg.h>
+
+#define CI_USBCMD		0x30
+#	define USBCMD_RST		BIT(1)
+#	define USBCMD_RS		BIT(0)
+#define CI_USBSTS		0x34
+#	define USBSTS_SLI		BIT(8)
+#	define USBSTS_URI		BIT(6)
+#	define USBSTS_PCI		BIT(2)
+#define CI_PORTSC1		0x74
+#	define PORTSC_PP		BIT(12)
+#	define PORTSC_LS		(BIT(11) | BIT(10))
+#	define PORTSC_SUSP		BIT(7)
+#	define PORTSC_CCS		BIT(0)
+#define CI_HOSTPC1		0xb4
+#	define HOSTPC1_PHCD		BIT(22)
+#define CI_OTGSC		0xf4
+#	define OTGSC_DPIE		BIT(30)
+#	define OTGSC_1MSE		BIT(29)
+#	define OTGSC_BSEIE		BIT(28)
+#	define OTGSC_BSVIE		BIT(27)
+#	define OTGSC_ASVIE		BIT(26)
+#	define OTGSC_AVVIE		BIT(25)
+#	define OTGSC_IDIE		BIT(24)
+#	define OTGSC_DPIS		BIT(22)
+#	define OTGSC_1MSS		BIT(21)
+#	define OTGSC_BSEIS		BIT(20)
+#	define OTGSC_BSVIS		BIT(19)
+#	define OTGSC_ASVIS		BIT(18)
+#	define OTGSC_AVVIS		BIT(17)
+#	define OTGSC_IDIS		BIT(16)
+#	define OTGSC_DPS		BIT(14)
+#	define OTGSC_1MST		BIT(13)
+#	define OTGSC_BSE		BIT(12)
+#	define OTGSC_BSV		BIT(11)
+#	define OTGSC_ASV		BIT(10)
+#	define OTGSC_AVV		BIT(9)
+#	define OTGSC_ID			BIT(8)
+#	define OTGSC_HABA		BIT(7)
+#	define OTGSC_HADP		BIT(6)
+#	define OTGSC_IDPU		BIT(5)
+#	define OTGSC_DP			BIT(4)
+#	define OTGSC_OT			BIT(3)
+#	define OTGSC_HAAR		BIT(2)
+#	define OTGSC_VC			BIT(1)
+#	define OTGSC_VD			BIT(0)
+#	define OTGSC_INTEN_MASK		(0x7f << 24)
+#	define OTGSC_INT_MASK		(0x5f << 24)
+#	define OTGSC_INTSTS_MASK	(0x7f << 16)
+#define CI_USBMODE		0xf8
+#	define USBMODE_CM		(BIT(1) | BIT(0))
+#	define USBMODE_IDLE		0
+#	define USBMODE_DEVICE		0x2
+#	define USBMODE_HOST		0x3
+#define USBCFG_ADDR			0xff10801c
+#define USBCFG_LEN			4
+#	define USBCFG_VBUSVAL		BIT(14)
+#	define USBCFG_AVALID		BIT(13)
+#	define USBCFG_BVALID		BIT(12)
+#	define USBCFG_SESEND		BIT(11)
+
+#define INTR_DUMMY_MASK (USBSTS_SLI | USBSTS_URI | USBSTS_PCI)
+
+enum langwell_otg_timer_type {
+	TA_WAIT_VRISE_TMR,
+	TA_WAIT_BCON_TMR,
+	TA_AIDL_BDIS_TMR,
+	TB_ASE0_BRST_TMR,
+	TB_SE0_SRP_TMR,
+	TB_SRP_INIT_TMR,
+	TB_SRP_FAIL_TMR,
+	TB_BUS_SUSPEND_TMR
+};
+
+#define TA_WAIT_VRISE	100
+#define TA_WAIT_BCON	30000
+#define TA_AIDL_BDIS	15000
+#define TB_ASE0_BRST	5000
+#define TB_SE0_SRP	2
+#define TB_SRP_INIT	100
+#define TB_SRP_FAIL	5500
+#define TB_BUS_SUSPEND	500
+
+struct langwell_otg_timer {
+	unsigned long expires;	/* Number of count increase to timeout */
+	unsigned long count;	/* Tick counter */
+	void (*function)(unsigned long);	/* Timeout function */
+	unsigned long data;	/* Data passed to function */
+	struct list_head list;
+};
+
+struct langwell_otg {
+	struct intel_mid_otg_xceiv	iotg;
+	struct device			*dev;
+
+	void __iomem			*usbcfg;	/* SCCBUSB config Reg */
+
+	unsigned			region;
+	unsigned			cfg_region;
+
+	struct work_struct		work;
+	struct workqueue_struct		*qwork;
+	struct timer_list		hsm_timer;
+
+	spinlock_t			lock;
+	spinlock_t			wq_lock;
+
+	struct notifier_block		iotg_notifier;
+};
+
+static inline
+struct langwell_otg *mid_xceiv_to_lnw(struct intel_mid_otg_xceiv *iotg)
+{
+	return container_of(iotg, struct langwell_otg, iotg);
+}
+
+#endif /* __LANGWELL_OTG_H__ */