Merge tag 'gadget-for-v3.7' of...

Merge tag 'gadget-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

usb: gadget: patches for v3.7 merge window

This pull request is large but the biggest part is the first part
of the cleanup on the gadget framework so we have a saner setup
to add configfs support for v3.8.

We have also some more conversions to the new udc_start/udc_stop
which makes us closer from dropping the old interfaces.

USB_GADGET_DUALSPEED and USB_GADGET_SUPERSPEED are finally gone,
thanks to Michal for his awesome work.

Other than that, we have the usual set of miscellaneous changes
and cleanups involving improvements to debug messages, removal
of duplicated includes, moving dereference after NULL test,
making renesas_hsbhs' irq handler Shared, unused code being dropped,
prevention of sleep-inside-spinlock bugs and a race condition fix
on udc-core.

drivers/staging/ccg/Kconfig

@@ -17,4 +17,9 @@ config USB_G_CCG
 	  Configurable Composite Gadget can be compiled "M" only
 	  or not at all.
 
+	  BIG FAT NOTE: DON'T RELY ON THIS USERINTERFACE HERE! AS PART
+	  OF THE REWORK DONE HERE WILL BE A NEW USER INTERFACE WITHOUT ANY
+	  COMPATIBILITY TO THIS SYSFS INTERFACE HERE. BE AWARE OF THIS
+	  BEFORE SELECTING THIS.
+
 endif # USB_GADGET

drivers/staging/ccg/Makefile

 g_ccg-y				:= ccg.o
-ccflags-y			+= -Idrivers/usb/gadget
-
 obj-$(CONFIG_USB_G_CCG)		+= g_ccg.o

drivers/staging/ccg/ccg.c

@@ -32,7 +32,7 @@
 #include <linux/platform_device.h>
 
 #include <linux/usb/ch9.h>
-#include <linux/usb/composite.h>
+#include "composite.h"
 #include <linux/usb/gadget.h>
 
 #include "gadget_chips.h"
@@ -44,19 +44,19 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-#include "../../usb/gadget/usbstring.c"
-#include "../../usb/gadget/config.c"
-#include "../../usb/gadget/epautoconf.c"
-#include "../../usb/gadget/composite.c"
-
-#include "../../usb/gadget/f_mass_storage.c"
-#include "../../usb/gadget/u_serial.c"
-#include "../../usb/gadget/f_acm.c"
+#include "usbstring.c"
+#include "config.c"
+#include "epautoconf.c"
+#include "composite.c"
+
+#include "f_mass_storage.c"
+#include "u_serial.c"
+#include "f_acm.c"
 #define USB_ETH_RNDIS y
-#include "../../usb/gadget/f_rndis.c"
-#include "../../usb/gadget/rndis.c"
-#include "../../usb/gadget/u_ether.c"
-#include "../../usb/gadget/f_fs.c"
+#include "f_rndis.c"
+#include "rndis.c"
+#include "u_ether.c"
+#include "f_fs.c"
 
 MODULE_AUTHOR("Mike Lockwood, Andrzej Pietrasiewicz");
 MODULE_DESCRIPTION("Configurable Composite USB Gadget");
@@ -1162,6 +1162,7 @@ static int ccg_usb_unbind(struct usb_composite_dev *cdev)
 static struct usb_composite_driver ccg_usb_driver = {
 	.name		= "configurable_usb",
 	.dev		= &device_desc,
+	.bind		= ccg_bind,
 	.unbind		= ccg_usb_unbind,
 	.needs_serial	= true,
 	.iManufacturer	= "Linux Foundation",
@@ -1275,7 +1276,7 @@ static int __init init(void)
 	composite_driver.setup = ccg_setup;
 	composite_driver.disconnect = ccg_disconnect;
 
-	err = usb_composite_probe(&ccg_usb_driver, ccg_bind);
+	err = usb_composite_probe(&ccg_usb_driver);
 	if (err) {
 		class_destroy(ccg_class);
 		kfree(dev);

drivers/staging/ccg/composite.h

+/*
+ * composite.h -- framework for usb gadgets which are composite devices
+ *
+ * Copyright (C) 2006-2008 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that 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	__LINUX_USB_COMPOSITE_H
+#define	__LINUX_USB_COMPOSITE_H
+
+/*
+ * This framework is an optional layer on top of the USB Gadget interface,
+ * making it easier to build (a) Composite devices, supporting multiple
+ * functions within any single configuration, and (b) Multi-configuration
+ * devices, also supporting multiple functions but without necessarily
+ * having more than one function per configuration.
+ *
+ * Example:  a device with a single configuration supporting both network
+ * link and mass storage functions is a composite device.  Those functions
+ * might alternatively be packaged in individual configurations, but in
+ * the composite model the host can use both functions at the same time.
+ */
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+
+/*
+ * USB function drivers should return USB_GADGET_DELAYED_STATUS if they
+ * wish to delay the data/status stages of the control transfer till they
+ * are ready. The control transfer will then be kept from completing till
+ * all the function drivers that requested for USB_GADGET_DELAYED_STAUS
+ * invoke usb_composite_setup_continue().
+ */
+#define USB_GADGET_DELAYED_STATUS       0x7fff	/* Impossibly large value */
+
+struct usb_configuration;
+
+/**
+ * struct usb_function - describes one function of a configuration
+ * @name: For diagnostics, identifies the function.
+ * @strings: tables of strings, keyed by identifiers assigned during bind()
+ *	and by language IDs provided in control requests
+ * @descriptors: Table of full (or low) speed descriptors, using interface and
+ *	string identifiers assigned during @bind().  If this pointer is null,
+ *	the function will not be available at full speed (or at low speed).
+ * @hs_descriptors: Table of high speed descriptors, using interface and
+ *	string identifiers assigned during @bind().  If this pointer is null,
+ *	the function will not be available at high speed.
+ * @ss_descriptors: Table of super speed descriptors, using interface and
+ *	string identifiers assigned during @bind(). If this
+ *	pointer is null after initiation, the function will not
+ *	be available at super speed.
+ * @config: assigned when @usb_add_function() is called; this is the
+ *	configuration with which this function is associated.
+ * @bind: Before the gadget can register, all of its functions bind() to the
+ *	available resources including string and interface identifiers used
+ *	in interface or class descriptors; endpoints; I/O buffers; and so on.
+ * @unbind: Reverses @bind; called as a side effect of unregistering the
+ *	driver which added this function.
+ * @set_alt: (REQUIRED) Reconfigures altsettings; function drivers may
+ *	initialize usb_ep.driver data at this time (when it is used).
+ *	Note that setting an interface to its current altsetting resets
+ *	interface state, and that all interfaces have a disabled state.
+ * @get_alt: Returns the active altsetting.  If this is not provided,
+ *	then only altsetting zero is supported.
+ * @disable: (REQUIRED) Indicates the function should be disabled.  Reasons
+ *	include host resetting or reconfiguring the gadget, and disconnection.
+ * @setup: Used for interface-specific control requests.
+ * @suspend: Notifies functions when the host stops sending USB traffic.
+ * @resume: Notifies functions when the host restarts USB traffic.
+ * @get_status: Returns function status as a reply to
+ *	GetStatus() request when the recepient is Interface.
+ * @func_suspend: callback to be called when
+ *	SetFeature(FUNCTION_SUSPEND) is reseived
+ *
+ * A single USB function uses one or more interfaces, and should in most
+ * cases support operation at both full and high speeds.  Each function is
+ * associated by @usb_add_function() with a one configuration; that function
+ * causes @bind() to be called so resources can be allocated as part of
+ * setting up a gadget driver.  Those resources include endpoints, which
+ * should be allocated using @usb_ep_autoconfig().
+ *
+ * To support dual speed operation, a function driver provides descriptors
+ * for both high and full speed operation.  Except in rare cases that don't
+ * involve bulk endpoints, each speed needs different endpoint descriptors.
+ *
+ * Function drivers choose their own strategies for managing instance data.
+ * The simplest strategy just declares it "static', which means the function
+ * can only be activated once.  If the function needs to be exposed in more
+ * than one configuration at a given speed, it needs to support multiple
+ * usb_function structures (one for each configuration).
+ *
+ * A more complex strategy might encapsulate a @usb_function structure inside
+ * a driver-specific instance structure to allows multiple activations.  An
+ * example of multiple activations might be a CDC ACM function that supports
+ * two or more distinct instances within the same configuration, providing
+ * several independent logical data links to a USB host.
+ */
+struct usb_function {
+	const char			*name;
+	struct usb_gadget_strings	**strings;
+	struct usb_descriptor_header	**descriptors;
+	struct usb_descriptor_header	**hs_descriptors;
+	struct usb_descriptor_header	**ss_descriptors;
+
+	struct usb_configuration	*config;
+
+	/* REVISIT:  bind() functions can be marked __init, which
+	 * makes trouble for section mismatch analysis.  See if
+	 * we can't restructure things to avoid mismatching.
+	 * Related:  unbind() may kfree() but bind() won't...
+	 */
+
+	/* configuration management:  bind/unbind */
+	int			(*bind)(struct usb_configuration *,
+					struct usb_function *);
+	void			(*unbind)(struct usb_configuration *,
+					struct usb_function *);
+
+	/* runtime state management */
+	int			(*set_alt)(struct usb_function *,
+					unsigned interface, unsigned alt);
+	int			(*get_alt)(struct usb_function *,
+					unsigned interface);
+	void			(*disable)(struct usb_function *);
+	int			(*setup)(struct usb_function *,
+					const struct usb_ctrlrequest *);
+	void			(*suspend)(struct usb_function *);
+	void			(*resume)(struct usb_function *);
+
+	/* USB 3.0 additions */
+	int			(*get_status)(struct usb_function *);
+	int			(*func_suspend)(struct usb_function *,
+						u8 suspend_opt);
+	/* private: */
+	/* internals */
+	struct list_head		list;
+	DECLARE_BITMAP(endpoints, 32);
+};
+
+int usb_add_function(struct usb_configuration *, struct usb_function *);
+
+int usb_function_deactivate(struct usb_function *);
+int usb_function_activate(struct usb_function *);
+
+int usb_interface_id(struct usb_configuration *, struct usb_function *);
+
+int config_ep_by_speed(struct usb_gadget *g, struct usb_function *f,
+			struct usb_ep *_ep);
+
+#define	MAX_CONFIG_INTERFACES		16	/* arbitrary; max 255 */
+
+/**
+ * struct usb_configuration - represents one gadget configuration
+ * @label: For diagnostics, describes the configuration.
+ * @strings: Tables of strings, keyed by identifiers assigned during @bind()
+ *	and by language IDs provided in control requests.
+ * @descriptors: Table of descriptors preceding all function descriptors.
+ *	Examples include OTG and vendor-specific descriptors.
+ * @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
+ *	device infrastructure or directed at a specific interface.
+ * @bConfigurationValue: Copied into configuration descriptor.
+ * @iConfiguration: Copied into configuration descriptor.
+ * @bmAttributes: Copied into configuration descriptor.
+ * @bMaxPower: Copied into configuration descriptor.
+ * @cdev: assigned by @usb_add_config() before calling @bind(); this is
+ *	the device associated with this configuration.
+ *
+ * Configurations are building blocks for gadget drivers structured around
+ * function drivers.  Simple USB gadgets require only one function and one
+ * configuration, and handle dual-speed hardware by always providing the same
+ * functionality.  Slightly more complex gadgets may have more than one
+ * single-function configuration at a given speed; or have configurations
+ * that only work at one speed.
+ *
+ * Composite devices are, by definition, ones with configurations which
+ * include more than one function.
+ *
+ * The lifecycle of a usb_configuration includes allocation, initialization
+ * of the fields described above, and calling @usb_add_config() to set up
+ * internal data and bind it to a specific device.  The configuration's
+ * @bind() method is then used to initialize all the functions and then
+ * call @usb_add_function() for them.
+ *
+ * Those functions would normally be independent of each other, but that's
+ * not mandatory.  CDC WMC devices are an example where functions often
+ * depend on other functions, with some functions subsidiary to others.
+ * Such interdependency may be managed in any way, so long as all of the
+ * descriptors complete by the time the composite driver returns from
+ * its bind() routine.
+ */
+struct usb_configuration {
+	const char			*label;
+	struct usb_gadget_strings	**strings;
+	const struct usb_descriptor_header **descriptors;
+
+	/* REVISIT:  bind() functions can be marked __init, which
+	 * makes trouble for section mismatch analysis.  See if
+	 * we can't restructure things to avoid mismatching...
+	 */
+
+	/* configuration management: unbind/setup */
+	void			(*unbind)(struct usb_configuration *);
+	int			(*setup)(struct usb_configuration *,
+					const struct usb_ctrlrequest *);
+
+	/* fields in the config descriptor */
+	u8			bConfigurationValue;
+	u8			iConfiguration;
+	u8			bmAttributes;
+	u8			bMaxPower;
+
+	struct usb_composite_dev	*cdev;
+
+	/* private: */
+	/* internals */
+	struct list_head	list;
+	struct list_head	functions;
+	u8			next_interface_id;
+	unsigned		superspeed:1;
+	unsigned		highspeed:1;
+	unsigned		fullspeed:1;
+	struct usb_function	*interface[MAX_CONFIG_INTERFACES];
+};
+
+int usb_add_config(struct usb_composite_dev *,
+		struct usb_configuration *,
+		int (*)(struct usb_configuration *));
+
+void usb_remove_config(struct usb_composite_dev *,
+		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.
+ * @iSerialNumber: Used as iSerialNumber override if @dev->iSerialNumber is
+ *	not set.
+ * @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
+ * @max_speed: Highest speed the driver supports.
+ * @needs_serial: set to 1 if the gadget needs userspace to provide
+ * 	a serial number.  If one is not provided, warning will be printed.
+ * @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
+ *	this driver.
+ * @disconnect: optional driver disconnect method
+ * @suspend: Notifies when the host stops sending USB traffic,
+ *	after function notifications
+ * @resume: Notifies configuration when the host restarts USB traffic,
+ *	before function notifications
+ *
+ * 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
+ * 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
+ * meaningful device identifiers.  (The strings will not be defined unless
+ * they are defined in @dev and @strings.)  The correct ep0 maxpacket size
+ * is also reported, as defined by the underlying controller driver.
+ */
+struct usb_composite_driver {
+	const char				*name;
+	const char				*iProduct;
+	const char				*iManufacturer;
+	const char				*iSerialNumber;
+	const struct usb_device_descriptor	*dev;
+	struct usb_gadget_strings		**strings;
+	enum usb_device_speed			max_speed;
+	unsigned		needs_serial:1;
+
+	int			(*bind)(struct usb_composite_dev *cdev);
+	int			(*unbind)(struct usb_composite_dev *);
+
+	void			(*disconnect)(struct usb_composite_dev *);
+
+	/* global suspend hooks */
+	void			(*suspend)(struct usb_composite_dev *);
+	void			(*resume)(struct usb_composite_dev *);
+};
+
+extern int usb_composite_probe(struct usb_composite_driver *driver);
+extern void usb_composite_unregister(struct usb_composite_driver *driver);
+extern void usb_composite_setup_continue(struct usb_composite_dev *cdev);
+
+
+/**
+ * struct usb_composite_device - represents one composite usb gadget
+ * @gadget: read-only, abstracts the gadget's usb peripheral controller
+ * @req: used for control responses; buffer is pre-allocated
+ * @bufsiz: size of buffer pre-allocated in @req
+ * @config: the currently active configuration
+ *
+ * One of these devices is allocated and initialized before the
+ * associated device driver's bind() is called.
+ *
+ * OPEN ISSUE:  it appears that some WUSB devices will need to be
+ * built by combining a normal (wired) gadget with a wireless one.
+ * This revision of the gadget framework should probably try to make
+ * sure doing that won't hurt too much.
+ *
+ * One notion for how to handle Wireless USB devices involves:
+ * (a) a second gadget here, discovery mechanism TBD, but likely
+ *     needing separate "register/unregister WUSB gadget" calls;
+ * (b) updates to usb_gadget to include flags "is it wireless",
+ *     "is it wired", plus (presumably in a wrapper structure)
+ *     bandgroup and PHY info;
+ * (c) presumably a wireless_ep wrapping a usb_ep, and reporting
+ *     wireless-specific parameters like maxburst and maxsequence;
+ * (d) configurations that are specific to wireless links;
+ * (e) function drivers that understand wireless configs and will
+ *     support wireless for (additional) function instances;
+ * (f) a function to support association setup (like CBAF), not
+ *     necessarily requiring a wireless adapter;
+ * (g) composite device setup that can create one or more wireless
+ *     configs, including appropriate association setup support;
+ * (h) more, TBD.
+ */
+struct usb_composite_dev {
+	struct usb_gadget		*gadget;
+	struct usb_request		*req;
+	unsigned			bufsiz;
+
+	struct usb_configuration	*config;
+
+	/* private: */
+	/* internals */
+	unsigned int			suspended:1;
+	struct usb_device_descriptor	desc;
+	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.
+	 */
+	unsigned			deactivations;
+
+	/* the composite driver won't complete the control transfer's
+	 * data/status stages till delayed_status is zero.
+	 */
+	int				delayed_status;
+
+	/* protects deactivations and delayed_status counts*/
+	spinlock_t			lock;
+};
+
+extern int usb_string_id(struct usb_composite_dev *c);
+extern int usb_string_ids_tab(struct usb_composite_dev *c,
+			      struct usb_string *str);
+extern int usb_string_ids_n(struct usb_composite_dev *c, unsigned n);
+
+
+/* messaging utils */
+#define DBG(d, fmt, args...) \
+	dev_dbg(&(d)->gadget->dev , fmt , ## args)
+#define VDBG(d, fmt, args...) \
+	dev_vdbg(&(d)->gadget->dev , fmt , ## args)
+#define ERROR(d, fmt, args...) \
+	dev_err(&(d)->gadget->dev , fmt , ## args)
+#define WARNING(d, fmt, args...) \
+	dev_warn(&(d)->gadget->dev , fmt , ## args)
+#define INFO(d, fmt, args...) \
+	dev_info(&(d)->gadget->dev , fmt , ## args)
+
+#endif	/* __LINUX_USB_COMPOSITE_H */

drivers/staging/ccg/config.c

+/*
+ * usb/gadget/config.c -- simplify building config descriptors
+ *
+ * Copyright (C) 2003 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/string.h>
+#include <linux/device.h>
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+
+
+/**
+ * usb_descriptor_fillbuf - fill buffer with descriptors
+ * @buf: Buffer to be filled
+ * @buflen: Size of buf
+ * @src: Array of descriptor pointers, terminated by null pointer.
+ *
+ * Copies descriptors into the buffer, returning the length or a
+ * negative error code if they can't all be copied.  Useful when
+ * assembling descriptors for an associated set of interfaces used
+ * as part of configuring a composite device; or in other cases where
+ * sets of descriptors need to be marshaled.
+ */
+int
+usb_descriptor_fillbuf(void *buf, unsigned buflen,
+		const struct usb_descriptor_header **src)
+{
+	u8	*dest = buf;
+
+	if (!src)
+		return -EINVAL;
+
+	/* fill buffer from src[] until null descriptor ptr */
+	for (; NULL != *src; src++) {
+		unsigned		len = (*src)->bLength;
+
+		if (len > buflen)
+			return -EINVAL;
+		memcpy(dest, *src, len);
+		buflen -= len;
+		dest += len;
+	}
+	return dest - (u8 *)buf;
+}
+
+
+/**
+ * usb_gadget_config_buf - builts a complete configuration descriptor
+ * @config: Header for the descriptor, including characteristics such
+ *	as power requirements and number of interfaces.
+ * @desc: Null-terminated vector of pointers to the descriptors (interface,
+ *	endpoint, etc) defining all functions in this device configuration.
+ * @buf: Buffer for the resulting configuration descriptor.
+ * @length: Length of buffer.  If this is not big enough to hold the
+ *	entire configuration descriptor, an error code will be returned.
+ *
+ * This copies descriptors into the response buffer, building a descriptor
+ * for that configuration.  It returns the buffer length or a negative
+ * status code.  The config.wTotalLength field is set to match the length
+ * of the result, but other descriptor fields (including power usage and
+ * interface count) must be set by the caller.
+ *
+ * Gadget drivers could use this when constructing a config descriptor
+ * in response to USB_REQ_GET_DESCRIPTOR.  They will need to patch the
+ * resulting bDescriptorType value if USB_DT_OTHER_SPEED_CONFIG is needed.
+ */
+int usb_gadget_config_buf(
+	const struct usb_config_descriptor	*config,
+	void					*buf,
+	unsigned				length,
+	const struct usb_descriptor_header	**desc
+)
+{
+	struct usb_config_descriptor		*cp = buf;
+	int					len;
+
+	/* config descriptor first */
+	if (length < USB_DT_CONFIG_SIZE || !desc)
+		return -EINVAL;
+	*cp = *config;
+
+	/* then interface/endpoint/class/vendor/... */
+	len = usb_descriptor_fillbuf(USB_DT_CONFIG_SIZE + (u8*)buf,
+			length - USB_DT_CONFIG_SIZE, desc);
+	if (len < 0)
+		return len;
+	len += USB_DT_CONFIG_SIZE;
+	if (len > 0xffff)
+		return -EINVAL;
+
+	/* patch up the config descriptor */
+	cp->bLength = USB_DT_CONFIG_SIZE;
+	cp->bDescriptorType = USB_DT_CONFIG;
+	cp->wTotalLength = cpu_to_le16(len);
+	cp->bmAttributes |= USB_CONFIG_ATT_ONE;
+	return len;
+}
+
+/**
+ * usb_copy_descriptors - copy a vector of USB descriptors
+ * @src: null-terminated vector to copy
+ * Context: initialization code, which may sleep
+ *
+ * This makes a copy of a vector of USB descriptors.  Its primary use
+ * is to support usb_function objects which can have multiple copies,
+ * each needing different descriptors.  Functions may have static
+ * tables of descriptors, which are used as templates and customized
+ * with identifiers (for interfaces, strings, endpoints, and more)
+ * as needed by a given function instance.
+ */
+struct usb_descriptor_header **
+usb_copy_descriptors(struct usb_descriptor_header **src)
+{
+	struct usb_descriptor_header **tmp;
+	unsigned bytes;
+	unsigned n_desc;
+	void *mem;
+	struct usb_descriptor_header **ret;
+
+	/* count descriptors and their sizes; then add vector size */
+	for (bytes = 0, n_desc = 0, tmp = src; *tmp; tmp++, n_desc++)
+		bytes += (*tmp)->bLength;
+	bytes += (n_desc + 1) * sizeof(*tmp);
+
+	mem = kmalloc(bytes, GFP_KERNEL);
+	if (!mem)
+		return NULL;
+
+	/* fill in pointers starting at "tmp",
+	 * to descriptors copied starting at "mem";
+	 * and return "ret"
+	 */
+	tmp = mem;
+	ret = mem;
+	mem += (n_desc + 1) * sizeof(*tmp);
+	while (*src) {
+		memcpy(mem, *src, (*src)->bLength);
+		*tmp = mem;
+		tmp++;
+		mem += (*src)->bLength;
+		src++;
+	}
+	*tmp = NULL;
+
+	return ret;
+}
+

drivers/staging/ccg/epautoconf.c

+/*
+ * epautoconf.c -- endpoint autoconfiguration for usb gadget drivers
+ *
+ * Copyright (C) 2004 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/device.h>
+
+#include <linux/ctype.h>
+#include <linux/string.h>
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+
+#include "gadget_chips.h"
+
+
+/* we must assign addresses for configurable endpoints (like net2280) */
+static unsigned epnum;
+
+// #define MANY_ENDPOINTS
+#ifdef MANY_ENDPOINTS
+/* more than 15 configurable endpoints */
+static unsigned in_epnum;
+#endif
+
+
+/*
+ * This should work with endpoints from controller drivers sharing the
+ * same endpoint naming convention.  By example:
+ *
+ *	- ep1, ep2, ... address is fixed, not direction or type
+ *	- ep1in, ep2out, ... address and direction are fixed, not type
+ *	- ep1-bulk, ep2-bulk, ... address and type are fixed, not direction
+ *	- ep1in-bulk, ep2out-iso, ... all three are fixed
+ *	- ep-* ... no functionality restrictions
+ *
+ * Type suffixes are "-bulk", "-iso", or "-int".  Numbers are decimal.
+ * Less common restrictions are implied by gadget_is_*().
+ *
+ * NOTE:  each endpoint is unidirectional, as specified by its USB
+ * descriptor; and isn't specific to a configuration or altsetting.
+ */
+static int
+ep_matches (
+	struct usb_gadget		*gadget,
+	struct usb_ep			*ep,
+	struct usb_endpoint_descriptor	*desc,
+	struct usb_ss_ep_comp_descriptor *ep_comp
+)
+{
+	u8		type;
+	const char	*tmp;
+	u16		max;
+
+	int		num_req_streams = 0;
+
+	/* endpoint already claimed? */
+	if (NULL != ep->driver_data)
+		return 0;
+
+	/* only support ep0 for portable CONTROL traffic */
+	type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
+	if (USB_ENDPOINT_XFER_CONTROL == type)
+		return 0;
+
+	/* some other naming convention */
+	if ('e' != ep->name[0])
+		return 0;
+
+	/* type-restriction:  "-iso", "-bulk", or "-int".
+	 * direction-restriction:  "in", "out".
+	 */
+	if ('-' != ep->name[2]) {
+		tmp = strrchr (ep->name, '-');
+		if (tmp) {
+			switch (type) {
+			case USB_ENDPOINT_XFER_INT:
+				/* bulk endpoints handle interrupt transfers,
+				 * except the toggle-quirky iso-synch kind
+				 */
+				if ('s' == tmp[2])	// == "-iso"
+					return 0;
+				/* for now, avoid PXA "interrupt-in";
+				 * it's documented as never using DATA1.
+				 */
+				if (gadget_is_pxa (gadget)
+						&& 'i' == tmp [1])
+					return 0;
+				break;
+			case USB_ENDPOINT_XFER_BULK:
+				if ('b' != tmp[1])	// != "-bulk"
+					return 0;
+				break;
+			case USB_ENDPOINT_XFER_ISOC:
+				if ('s' != tmp[2])	// != "-iso"
+					return 0;
+			}
+		} else {
+			tmp = ep->name + strlen (ep->name);
+		}
+
+		/* direction-restriction:  "..in-..", "out-.." */
+		tmp--;
+		if (!isdigit (*tmp)) {
+			if (desc->bEndpointAddress & USB_DIR_IN) {
+				if ('n' != *tmp)
+					return 0;
+			} else {
+				if ('t' != *tmp)
+					return 0;
+			}
+		}
+	}
+
+	/*
+	 * Get the number of required streams from the EP companion
+	 * descriptor and see if the EP matches it
+	 */
+	if (usb_endpoint_xfer_bulk(desc)) {
+		if (ep_comp && gadget->max_speed >= USB_SPEED_SUPER) {
+			num_req_streams = ep_comp->bmAttributes & 0x1f;
+			if (num_req_streams > ep->max_streams)
+				return 0;
+		}
+
+	}
+
+	/*
+	 * If the protocol driver hasn't yet decided on wMaxPacketSize
+	 * and wants to know the maximum possible, provide the info.
+	 */
+	if (desc->wMaxPacketSize == 0)
+		desc->wMaxPacketSize = cpu_to_le16(ep->maxpacket);
+
+	/* endpoint maxpacket size is an input parameter, except for bulk
+	 * where it's an output parameter representing the full speed limit.
+	 * the usb spec fixes high speed bulk maxpacket at 512 bytes.
+	 */
+	max = 0x7ff & usb_endpoint_maxp(desc);
+	switch (type) {
+	case USB_ENDPOINT_XFER_INT:
+		/* INT:  limit 64 bytes full speed, 1024 high/super speed */
+		if (!gadget_is_dualspeed(gadget) && max > 64)
+			return 0;
+		/* FALLTHROUGH */
+
+	case USB_ENDPOINT_XFER_ISOC:
+		/* ISO:  limit 1023 bytes full speed, 1024 high/super speed */
+		if (ep->maxpacket < max)
+			return 0;
+		if (!gadget_is_dualspeed(gadget) && max > 1023)
+			return 0;
+
+		/* BOTH:  "high bandwidth" works only at high speed */
+		if ((desc->wMaxPacketSize & cpu_to_le16(3<<11))) {
+			if (!gadget_is_dualspeed(gadget))
+				return 0;
+			/* configure your hardware with enough buffering!! */
+		}
+		break;
+	}
+
+	/* MATCH!! */
+
+	/* report address */
+	desc->bEndpointAddress &= USB_DIR_IN;
+	if (isdigit (ep->name [2])) {
+		u8	num = simple_strtoul (&ep->name [2], NULL, 10);
+		desc->bEndpointAddress |= num;
+#ifdef	MANY_ENDPOINTS
+	} else if (desc->bEndpointAddress & USB_DIR_IN) {
+		if (++in_epnum > 15)
+			return 0;
+		desc->bEndpointAddress = USB_DIR_IN | in_epnum;
+#endif
+	} else {
+		if (++epnum > 15)
+			return 0;
+		desc->bEndpointAddress |= epnum;
+	}
+
+	/* report (variable) full speed bulk maxpacket */
+	if ((USB_ENDPOINT_XFER_BULK == type) && !ep_comp) {
+		int size = ep->maxpacket;
+
+		/* min() doesn't work on bitfields with gcc-3.5 */
+		if (size > 64)
+			size = 64;
+		desc->wMaxPacketSize = cpu_to_le16(size);
+	}
+	ep->address = desc->bEndpointAddress;
+	return 1;
+}
+
+static struct usb_ep *
+find_ep (struct usb_gadget *gadget, const char *name)
+{
+	struct usb_ep	*ep;
+
+	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
+		if (0 == strcmp (ep->name, name))
+			return ep;
+	}
+	return NULL;
+}
+
+/**
+ * usb_ep_autoconfig_ss() - choose an endpoint matching the ep
+ * descriptor and ep companion descriptor
+ * @gadget: The device to which the endpoint must belong.
+ * @desc: Endpoint descriptor, with endpoint direction and transfer mode
+ *    initialized.  For periodic transfers, the maximum packet
+ *    size must also be initialized.  This is modified on
+ *    success.
+ * @ep_comp: Endpoint companion descriptor, with the required
+ *    number of streams. Will be modified when the chosen EP
+ *    supports a different number of streams.
+ *
+ * This routine replaces the usb_ep_autoconfig when needed
+ * superspeed enhancments. If such enhancemnets are required,
+ * the FD should call usb_ep_autoconfig_ss directly and provide
+ * the additional ep_comp parameter.
+ *
+ * By choosing an endpoint to use with the specified descriptor,
+ * this routine simplifies writing gadget drivers that work with
+ * multiple USB device controllers.  The endpoint would be
+ * passed later to usb_ep_enable(), along with some descriptor.
+ *
+ * That second descriptor won't always be the same as the first one.
+ * For example, isochronous endpoints can be autoconfigured for high
+ * bandwidth, and then used in several lower bandwidth altsettings.
+ * Also, high and full speed descriptors will be different.
+ *
+ * Be sure to examine and test the results of autoconfiguration
+ * on your hardware.  This code may not make the best choices
+ * about how to use the USB controller, and it can't know all
+ * the restrictions that may apply. Some combinations of driver
+ * and hardware won't be able to autoconfigure.
+ *
+ * On success, this returns an un-claimed usb_ep, and modifies the endpoint
+ * descriptor bEndpointAddress.  For bulk endpoints, the wMaxPacket value
+ * is initialized as if the endpoint were used at full speed and
+ * the bmAttribute field in the ep companion descriptor is
+ * updated with the assigned number of streams if it is
+ * different from the original value. To prevent the endpoint
+ * from being returned by a later autoconfig call, claim it by
+ * assigning ep->driver_data to some non-null value.
+ *
+ * On failure, this returns a null endpoint descriptor.
+ */
+struct usb_ep *usb_ep_autoconfig_ss(
+	struct usb_gadget		*gadget,
+	struct usb_endpoint_descriptor	*desc,
+	struct usb_ss_ep_comp_descriptor *ep_comp
+)
+{
+	struct usb_ep	*ep;
+	u8		type;
+
+	type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
+
+	/* First, apply chip-specific "best usage" knowledge.
+	 * This might make a good usb_gadget_ops hook ...
+	 */
+	if (gadget_is_net2280 (gadget) && type == USB_ENDPOINT_XFER_INT) {
+		/* ep-e, ep-f are PIO with only 64 byte fifos */
+		ep = find_ep (gadget, "ep-e");
+		if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			goto found_ep;
+		ep = find_ep (gadget, "ep-f");
+		if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			goto found_ep;
+
+	} else if (gadget_is_goku (gadget)) {
+		if (USB_ENDPOINT_XFER_INT == type) {
+			/* single buffering is enough */
+			ep = find_ep(gadget, "ep3-bulk");
+			if (ep && ep_matches(gadget, ep, desc, ep_comp))
+				goto found_ep;
+		} else if (USB_ENDPOINT_XFER_BULK == type
+				&& (USB_DIR_IN & desc->bEndpointAddress)) {
+			/* DMA may be available */
+			ep = find_ep(gadget, "ep2-bulk");
+			if (ep && ep_matches(gadget, ep, desc,
+					      ep_comp))
+				goto found_ep;
+		}
+
+#ifdef CONFIG_BLACKFIN
+	} else if (gadget_is_musbhdrc(gadget)) {
+		if ((USB_ENDPOINT_XFER_BULK == type) ||
+		    (USB_ENDPOINT_XFER_ISOC == type)) {
+			if (USB_DIR_IN & desc->bEndpointAddress)
+				ep = find_ep (gadget, "ep5in");
+			else
+				ep = find_ep (gadget, "ep6out");
+		} else if (USB_ENDPOINT_XFER_INT == type) {
+			if (USB_DIR_IN & desc->bEndpointAddress)
+				ep = find_ep(gadget, "ep1in");
+			else
+				ep = find_ep(gadget, "ep2out");
+		} else
+			ep = NULL;
+		if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			goto found_ep;
+#endif
+	}
+
+	/* Second, look at endpoints until an unclaimed one looks usable */
+	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
+		if (ep_matches(gadget, ep, desc, ep_comp))
+			goto found_ep;
+	}
+
+	/* Fail */
+	return NULL;
+found_ep:
+	ep->desc = NULL;
+	ep->comp_desc = NULL;
+	return ep;
+}
+
+/**
+ * usb_ep_autoconfig() - choose an endpoint matching the
+ * descriptor
+ * @gadget: The device to which the endpoint must belong.
+ * @desc: Endpoint descriptor, with endpoint direction and transfer mode
+ *	initialized.  For periodic transfers, the maximum packet
+ *	size must also be initialized.  This is modified on success.
+ *
+ * By choosing an endpoint to use with the specified descriptor, this
+ * routine simplifies writing gadget drivers that work with multiple
+ * USB device controllers.  The endpoint would be passed later to
+ * usb_ep_enable(), along with some descriptor.
+ *
+ * That second descriptor won't always be the same as the first one.
+ * For example, isochronous endpoints can be autoconfigured for high
+ * bandwidth, and then used in several lower bandwidth altsettings.
+ * Also, high and full speed descriptors will be different.
+ *
+ * Be sure to examine and test the results of autoconfiguration on your
+ * hardware.  This code may not make the best choices about how to use the
+ * USB controller, and it can't know all the restrictions that may apply.
+ * Some combinations of driver and hardware won't be able to autoconfigure.
+ *
+ * On success, this returns an un-claimed usb_ep, and modifies the endpoint
+ * descriptor bEndpointAddress.  For bulk endpoints, the wMaxPacket value
+ * is initialized as if the endpoint were used at full speed.  To prevent
+ * the endpoint from being returned by a later autoconfig call, claim it
+ * by assigning ep->driver_data to some non-null value.
+ *
+ * On failure, this returns a null endpoint descriptor.
+ */
+struct usb_ep *usb_ep_autoconfig(
+	struct usb_gadget		*gadget,
+	struct usb_endpoint_descriptor	*desc
+)
+{
+	return usb_ep_autoconfig_ss(gadget, desc, NULL);
+}
+
+
+/**
+ * usb_ep_autoconfig_reset - reset endpoint autoconfig state
+ * @gadget: device for which autoconfig state will be reset
+ *
+ * Use this for devices where one configuration may need to assign
+ * endpoint resources very differently from the next one.  It clears
+ * state such as ep->driver_data and the record of assigned endpoints
+ * used by usb_ep_autoconfig().
+ */
+void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
+{
+	struct usb_ep	*ep;
+
+	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
+		ep->driver_data = NULL;
+	}
+#ifdef	MANY_ENDPOINTS
+	in_epnum = 0;
+#endif
+	epnum = 0;
+}
+

drivers/staging/ccg/gadget_chips.h

+/*
+ * USB device controllers have lots of quirks.  Use these macros in
+ * gadget drivers or other code that needs to deal with them, and which
+ * autoconfigures instead of using early binding to the hardware.
+ *
+ * This SHOULD eventually work like the ARM mach_is_*() stuff, driven by
+ * some config file that gets updated as new hardware is supported.
+ * (And avoiding all runtime comparisons in typical one-choice configs!)
+ *
+ * NOTE:  some of these controller drivers may not be available yet.
+ * Some are available on 2.4 kernels; several are available, but not
+ * yet pushed in the 2.6 mainline tree.
+ */
+
+#ifndef __GADGET_CHIPS_H
+#define __GADGET_CHIPS_H
+
+/*
+ * NOTICE: the entries below are alphabetical and should be kept
+ * that way.
+ *
+ * Always be sure to add new entries to the correct position or
+ * accept the bashing later.
+ *
+ * If you have forgotten the alphabetical order let VIM/EMACS
+ * do that for you.
+ */
+#define gadget_is_amd5536udc(g)		(!strcmp("amd5536udc", (g)->name))
+#define gadget_is_at91(g)		(!strcmp("at91_udc", (g)->name))
+#define gadget_is_atmel_usba(g)		(!strcmp("atmel_usba_udc", (g)->name))
+#define gadget_is_bcm63xx(g)		(!strcmp("bcm63xx_udc", (g)->name))
+#define gadget_is_ci13xxx_msm(g)	(!strcmp("ci13xxx_msm", (g)->name))
+#define gadget_is_ci13xxx_pci(g)	(!strcmp("ci13xxx_pci", (g)->name))
+#define gadget_is_dummy(g)		(!strcmp("dummy_udc", (g)->name))
+#define gadget_is_dwc3(g)		(!strcmp("dwc3-gadget", (g)->name))
+#define gadget_is_fsl_qe(g)		(!strcmp("fsl_qe_udc", (g)->name))
+#define gadget_is_fsl_usb2(g)		(!strcmp("fsl-usb2-udc", (g)->name))
+#define gadget_is_goku(g)		(!strcmp("goku_udc", (g)->name))
+#define gadget_is_imx(g)		(!strcmp("imx_udc", (g)->name))
+#define gadget_is_langwell(g)		(!strcmp("langwell_udc", (g)->name))
+#define gadget_is_lpc32xx(g)		(!strcmp("lpc32xx_udc", (g)->name))
+#define gadget_is_m66592(g)		(!strcmp("m66592_udc", (g)->name))
+#define gadget_is_musbhdrc(g)		(!strcmp("musb-hdrc", (g)->name))
+#define gadget_is_net2272(g)		(!strcmp("net2272", (g)->name))
+#define gadget_is_net2280(g)		(!strcmp("net2280", (g)->name))
+#define gadget_is_omap(g)		(!strcmp("omap_udc", (g)->name))
+#define gadget_is_pch(g)		(!strcmp("pch_udc", (g)->name))
+#define gadget_is_pxa(g)		(!strcmp("pxa25x_udc", (g)->name))
+#define gadget_is_pxa27x(g)		(!strcmp("pxa27x_udc", (g)->name))
+#define gadget_is_r8a66597(g)		(!strcmp("r8a66597_udc", (g)->name))
+#define gadget_is_renesas_usbhs(g)	(!strcmp("renesas_usbhs_udc", (g)->name))
+#define gadget_is_s3c2410(g)		(!strcmp("s3c2410_udc", (g)->name))
+#define gadget_is_s3c_hsotg(g)		(!strcmp("s3c-hsotg", (g)->name))
+#define gadget_is_s3c_hsudc(g)		(!strcmp("s3c-hsudc", (g)->name))
+
+/**
+ * usb_gadget_controller_number - support bcdDevice id convention
+ * @gadget: the controller being driven
+ *
+ * Return a 2-digit BCD value associated with the peripheral controller,
+ * suitable for use as part of a bcdDevice value, or a negative error code.
+ *
+ * NOTE:  this convention is purely optional, and has no meaning in terms of
+ * any USB specification.  If you want to use a different convention in your
+ * gadget driver firmware -- maybe a more formal revision ID -- feel free.
+ *
+ * Hosts see these bcdDevice numbers, and are allowed (but not encouraged!)
+ * to change their behavior accordingly.  For example it might help avoiding
+ * some chip bug.
+ */
+static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
+{
+	if (gadget_is_net2280(gadget))
+		return 0x01;
+	else if (gadget_is_dummy(gadget))
+		return 0x02;
+	else if (gadget_is_pxa(gadget))
+		return 0x03;
+	else if (gadget_is_goku(gadget))
+		return 0x06;
+	else if (gadget_is_omap(gadget))
+		return 0x08;
+	else if (gadget_is_pxa27x(gadget))
+		return 0x11;
+	else if (gadget_is_s3c2410(gadget))
+		return 0x12;
+	else if (gadget_is_at91(gadget))
+		return 0x13;
+	else if (gadget_is_imx(gadget))
+		return 0x14;
+	else if (gadget_is_musbhdrc(gadget))
+		return 0x16;
+	else if (gadget_is_atmel_usba(gadget))
+		return 0x18;
+	else if (gadget_is_fsl_usb2(gadget))
+		return 0x19;
+	else if (gadget_is_amd5536udc(gadget))
+		return 0x20;
+	else if (gadget_is_m66592(gadget))
+		return 0x21;
+	else if (gadget_is_fsl_qe(gadget))
+		return 0x22;
+	else if (gadget_is_ci13xxx_pci(gadget))
+		return 0x23;
+	else if (gadget_is_langwell(gadget))
+		return 0x24;
+	else if (gadget_is_r8a66597(gadget))
+		return 0x25;
+	else if (gadget_is_s3c_hsotg(gadget))
+		return 0x26;
+	else if (gadget_is_pch(gadget))
+		return 0x27;
+	else if (gadget_is_ci13xxx_msm(gadget))
+		return 0x28;
+	else if (gadget_is_renesas_usbhs(gadget))
+		return 0x29;
+	else if (gadget_is_s3c_hsudc(gadget))
+		return 0x30;
+	else if (gadget_is_net2272(gadget))
+		return 0x31;
+	else if (gadget_is_dwc3(gadget))
+		return 0x32;
+	else if (gadget_is_lpc32xx(gadget))
+		return 0x33;
+	else if (gadget_is_bcm63xx(gadget))
+		return 0x34;
+
+	return -ENOENT;
+}
+
+
+/**
+ * gadget_supports_altsettings - return true if altsettings work
+ * @gadget: the gadget in question
+ */
+static inline bool gadget_supports_altsettings(struct usb_gadget *gadget)
+{
+	/* PXA 21x/25x/26x has no altsettings at all */
+	if (gadget_is_pxa(gadget))
+		return false;
+
+	/* PXA 27x and 3xx have *broken* altsetting support */
+	if (gadget_is_pxa27x(gadget))
+		return false;
+
+	/* Everything else is *presumably* fine ... */
+	return true;
+}
+
+#endif /* __GADGET_CHIPS_H */

drivers/staging/ccg/ndis.h

+/*
+ * ndis.h
+ *
+ * ntddndis.h modified by Benedikt Spranger <b.spranger@pengutronix.de>
+ *
+ * Thanks to the cygwin development team,
+ * espacially to Casper S. Hornstrup <chorns@users.sourceforge.net>
+ *
+ * THIS SOFTWARE IS NOT COPYRIGHTED
+ *
+ * This source code is offered for use in the public domain. You may
+ * use, modify or distribute it freely.
+ */
+
+#ifndef _LINUX_NDIS_H
+#define _LINUX_NDIS_H
+
+enum NDIS_DEVICE_POWER_STATE {
+	NdisDeviceStateUnspecified = 0,
+	NdisDeviceStateD0,
+	NdisDeviceStateD1,
+	NdisDeviceStateD2,
+	NdisDeviceStateD3,
+	NdisDeviceStateMaximum
+};
+
+struct NDIS_PM_WAKE_UP_CAPABILITIES {
+	enum NDIS_DEVICE_POWER_STATE  MinMagicPacketWakeUp;
+	enum NDIS_DEVICE_POWER_STATE  MinPatternWakeUp;
+	enum NDIS_DEVICE_POWER_STATE  MinLinkChangeWakeUp;
+};
+
+struct NDIS_PNP_CAPABILITIES {
+	__le32					Flags;
+	struct NDIS_PM_WAKE_UP_CAPABILITIES	WakeUpCapabilities;
+};
+
+struct NDIS_PM_PACKET_PATTERN {
+	__le32	Priority;
+	__le32	Reserved;
+	__le32	MaskSize;
+	__le32	PatternOffset;
+	__le32	PatternSize;
+	__le32	PatternFlags;
+};
+
+#endif /* _LINUX_NDIS_H */

drivers/staging/ccg/rndis.h

+/*
+ * RNDIS	Definitions for Remote NDIS
+ *
+ * Authors:	Benedikt Spranger, Pengutronix
+ *		Robert Schwebel, Pengutronix
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		version 2, as published by the Free Software Foundation.
+ *
+ *		This software was originally developed in conformance with
+ *		Microsoft's Remote NDIS Specification License Agreement.
+ */
+
+#ifndef _LINUX_RNDIS_H
+#define _LINUX_RNDIS_H
+
+#include <linux/rndis.h>
+#include "ndis.h"
+
+#define RNDIS_MAXIMUM_FRAME_SIZE	1518
+#define RNDIS_MAX_TOTAL_SIZE		1558
+
+typedef struct rndis_init_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	MajorVersion;
+	__le32	MinorVersion;
+	__le32	MaxTransferSize;
+} rndis_init_msg_type;
+
+typedef struct rndis_init_cmplt_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	Status;
+	__le32	MajorVersion;
+	__le32	MinorVersion;
+	__le32	DeviceFlags;
+	__le32	Medium;
+	__le32	MaxPacketsPerTransfer;
+	__le32	MaxTransferSize;
+	__le32	PacketAlignmentFactor;
+	__le32	AFListOffset;
+	__le32	AFListSize;
+} rndis_init_cmplt_type;
+
+typedef struct rndis_halt_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+} rndis_halt_msg_type;
+
+typedef struct rndis_query_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	OID;
+	__le32	InformationBufferLength;
+	__le32	InformationBufferOffset;
+	__le32	DeviceVcHandle;
+} rndis_query_msg_type;
+
+typedef struct rndis_query_cmplt_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	Status;
+	__le32	InformationBufferLength;
+	__le32	InformationBufferOffset;
+} rndis_query_cmplt_type;
+
+typedef struct rndis_set_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	OID;
+	__le32	InformationBufferLength;
+	__le32	InformationBufferOffset;
+	__le32	DeviceVcHandle;
+} rndis_set_msg_type;
+
+typedef struct rndis_set_cmplt_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	Status;
+} rndis_set_cmplt_type;
+
+typedef struct rndis_reset_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	Reserved;
+} rndis_reset_msg_type;
+
+typedef struct rndis_reset_cmplt_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	Status;
+	__le32	AddressingReset;
+} rndis_reset_cmplt_type;
+
+typedef struct rndis_indicate_status_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	Status;
+	__le32	StatusBufferLength;
+	__le32	StatusBufferOffset;
+} rndis_indicate_status_msg_type;
+
+typedef struct rndis_keepalive_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+} rndis_keepalive_msg_type;
+
+typedef struct rndis_keepalive_cmplt_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	RequestID;
+	__le32	Status;
+} rndis_keepalive_cmplt_type;
+
+struct rndis_packet_msg_type
+{
+	__le32	MessageType;
+	__le32	MessageLength;
+	__le32	DataOffset;
+	__le32	DataLength;
+	__le32	OOBDataOffset;
+	__le32	OOBDataLength;
+	__le32	NumOOBDataElements;
+	__le32	PerPacketInfoOffset;
+	__le32	PerPacketInfoLength;
+	__le32	VcHandle;
+	__le32	Reserved;
+} __attribute__ ((packed));
+
+struct rndis_config_parameter
+{
+	__le32	ParameterNameOffset;
+	__le32	ParameterNameLength;
+	__le32	ParameterType;
+	__le32	ParameterValueOffset;
+	__le32	ParameterValueLength;
+};
+
+/* implementation specific */
+enum rndis_state
+{
+	RNDIS_UNINITIALIZED,
+	RNDIS_INITIALIZED,
+	RNDIS_DATA_INITIALIZED,
+};
+
+typedef struct rndis_resp_t
+{
+	struct list_head	list;
+	u8			*buf;
+	u32			length;
+	int			send;
+} rndis_resp_t;
+
+typedef struct rndis_params
+{
+	u8			confignr;
+	u8			used;
+	u16			saved_filter;
+	enum rndis_state	state;
+	u32			medium;
+	u32			speed;
+	u32			media_state;
+
+	const u8		*host_mac;
+	u16			*filter;
+	struct net_device	*dev;
+
+	u32			vendorID;
+	const char		*vendorDescr;
+	void			(*resp_avail)(void *v);
+	void			*v;
+	struct list_head	resp_queue;
+} rndis_params;
+
+/* RNDIS Message parser and other useless functions */
+int  rndis_msg_parser (u8 configNr, u8 *buf);
+int  rndis_register(void (*resp_avail)(void *v), void *v);
+void rndis_deregister (int configNr);
+int  rndis_set_param_dev (u8 configNr, struct net_device *dev,
+			 u16 *cdc_filter);
+int  rndis_set_param_vendor (u8 configNr, u32 vendorID,
+			    const char *vendorDescr);
+int  rndis_set_param_medium (u8 configNr, u32 medium, u32 speed);
+void rndis_add_hdr (struct sk_buff *skb);
+int rndis_rm_hdr(struct gether *port, struct sk_buff *skb,
+			struct sk_buff_head *list);
+u8   *rndis_get_next_response (int configNr, u32 *length);
+void rndis_free_response (int configNr, u8 *buf);
+
+void rndis_uninit (int configNr);
+int  rndis_signal_connect (int configNr);
+int  rndis_signal_disconnect (int configNr);
+int  rndis_state (int configNr);
+extern void rndis_set_host_mac (int configNr, const u8 *addr);
+
+int rndis_init(void);
+void rndis_exit (void);
+
+#endif  /* _LINUX_RNDIS_H */

drivers/staging/ccg/u_serial.h

+/*
+ * u_serial.h - interface to USB gadget "serial port"/TTY utilities
+ *
+ * Copyright (C) 2008 David Brownell
+ * Copyright (C) 2008 by Nokia Corporation
+ *
+ * This software is distributed under the terms of the GNU General
+ * Public License ("GPL") as published by the Free Software Foundation,
+ * either version 2 of that License or (at your option) any later version.
+ */
+
+#ifndef __U_SERIAL_H
+#define __U_SERIAL_H
+
+#include <linux/usb/composite.h>
+#include <linux/usb/cdc.h>
+
+/*
+ * One non-multiplexed "serial" I/O port ... there can be several of these
+ * on any given USB peripheral device, if it provides enough endpoints.
+ *
+ * The "u_serial" utility component exists to do one thing:  manage TTY
+ * style I/O using the USB peripheral endpoints listed here, including
+ * hookups to sysfs and /dev for each logical "tty" device.
+ *
+ * REVISIT at least ACM could support tiocmget() if needed.
+ *
+ * REVISIT someday, allow multiplexing several TTYs over these endpoints.
+ */
+struct gserial {
+	struct usb_function		func;
+
+	/* port is managed by gserial_{connect,disconnect} */
+	struct gs_port			*ioport;
+
+	struct usb_ep			*in;
+	struct usb_ep			*out;
+
+	/* REVISIT avoid this CDC-ACM support harder ... */
+	struct usb_cdc_line_coding port_line_coding;	/* 9600-8-N-1 etc */
+
+	/* notification callbacks */
+	void (*connect)(struct gserial *p);
+	void (*disconnect)(struct gserial *p);
+	int (*send_break)(struct gserial *p, int duration);
+};
+
+/* utilities to allocate/free request and buffer */
+struct usb_request *gs_alloc_req(struct usb_ep *ep, unsigned len, gfp_t flags);
+void gs_free_req(struct usb_ep *, struct usb_request *req);
+
+/* port setup/teardown is handled by gadget driver */
+int gserial_setup(struct usb_gadget *g, unsigned n_ports);
+void gserial_cleanup(void);
+
+/* connect/disconnect is handled by individual functions */
+int gserial_connect(struct gserial *, u8 port_num);
+void gserial_disconnect(struct gserial *);
+
+/* functions are bound to configurations by a config or gadget driver */
+int acm_bind_config(struct usb_configuration *c, u8 port_num);
+int gser_bind_config(struct usb_configuration *c, u8 port_num);
+int obex_bind_config(struct usb_configuration *c, u8 port_num);
+
+#endif /* __U_SERIAL_H */

drivers/staging/ccg/usbstring.c

+/*
+ * Copyright (C) 2003 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/string.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/nls.h>
+
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+
+
+/**
+ * usb_gadget_get_string - fill out a string descriptor 
+ * @table: of c strings encoded using UTF-8
+ * @id: string id, from low byte of wValue in get string descriptor
+ * @buf: at least 256 bytes, must be 16-bit aligned
+ *
+ * Finds the UTF-8 string matching the ID, and converts it into a
+ * string descriptor in utf16-le.
+ * Returns length of descriptor (always even) or negative errno
+ *
+ * If your driver needs stings in multiple languages, you'll probably
+ * "switch (wIndex) { ... }"  in your ep0 string descriptor logic,
+ * using this routine after choosing which set of UTF-8 strings to use.
+ * Note that US-ASCII is a strict subset of UTF-8; any string bytes with
+ * the eighth bit set will be multibyte UTF-8 characters, not ISO-8859/1
+ * characters (which are also widely used in C strings).
+ */
+int
+usb_gadget_get_string (struct usb_gadget_strings *table, int id, u8 *buf)
+{
+	struct usb_string	*s;
+	int			len;
+
+	/* descriptor 0 has the language id */
+	if (id == 0) {
+		buf [0] = 4;
+		buf [1] = USB_DT_STRING;
+		buf [2] = (u8) table->language;
+		buf [3] = (u8) (table->language >> 8);
+		return 4;
+	}
+	for (s = table->strings; s && s->s; s++)
+		if (s->id == id)
+			break;
+
+	/* unrecognized: stall. */
+	if (!s || !s->s)
+		return -EINVAL;
+
+	/* string descriptors have length, tag, then UTF16-LE text */
+	len = min ((size_t) 126, strlen (s->s));
+	len = utf8s_to_utf16s(s->s, len, UTF16_LITTLE_ENDIAN,
+			(wchar_t *) &buf[2], 126);
+	if (len < 0)
+		return -EINVAL;
+	buf [0] = (len + 1) * 2;
+	buf [1] = USB_DT_STRING;
+	return buf [0];
+}
+

drivers/usb/chipidea/Kconfig

@@ -13,7 +13,6 @@ if USB_CHIPIDEA
 config USB_CHIPIDEA_UDC
 	bool "ChipIdea device controller"
 	depends on USB_GADGET=y || USB_GADGET=USB_CHIPIDEA
-	select USB_GADGET_DUALSPEED
 	help
 	  Say Y here to enable device controller functionality of the
 	  ChipIdea driver.