Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (149 commits)
  USB: ohci-pnx4008: Remove unnecessary cast of return value of kzalloc
  USB: additions to the quirk list
  usb-storage: implement autosuspend
  USB: cdc-acm: add new device id to option driver
  USB: goku_udc trivial cleanups
  USB: usb gadget stack can now -DDEBUG with Kconfig
  usb gadget stack: remove usb_ep_*_buffer(), part 2
  usb gadget stack: remove usb_ep_*_buffer(), part 1
  USB: pxa2xx_udc -- cleanups, mostly removing dma hooks
  USB: pxa2xx_udc: use generic gpio layer
  USB: quirk for samsung printer
  USB: usb/dma doc updates
  USB: drivers/usb/storage/unusual_devs.h whitespace cleanup
  USB: remove Makefile reference to obsolete OHCI_AT91
  USB: io_*: remove bogus termios no change checks
  USB: mos7720: remove bogus no termios change check
  USB: visor and whiteheat: remove bogus termios change checks
  USB: pl2303: remove bogus checks and fix speed support to use tty_get_baud_rate()
  USB: mos7840.c: turn this into a serial driver
  USB: make the usb_device numa_node get assigned from controller
  ...

6 files changed, 92 insertions, 60 deletions

diff --git a/include/linux/usb.h b/include/linux/usb.h
index 56aa2ee21f1b..7a60946df3b6 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -146,6 +146,10 @@ struct usb_interface {
                                          * active alternate setting */
         unsigned num_altsetting;        /* number of alternate settings */
 
+        /* If there is an interface association descriptor then it will list
+         * the associated interfaces */
+        struct usb_interface_assoc_descriptor *intf_assoc;
+
         int minor;                      /* minor number this interface is
                                          * bound to */
         enum usb_interface_condition condition;         /* state of binding */
@@ -175,6 +179,7 @@ void usb_put_intf(struct usb_interface *intf);
 
 /* this maximum is arbitrary */
 #define USB_MAXINTERFACES       32
+#define USB_MAXIADS             USB_MAXINTERFACES/2
 
 /**
  * struct usb_interface_cache - long-term representation of a device interface
@@ -245,6 +250,11 @@ struct usb_host_config {
         struct usb_config_descriptor    desc;
 
         char *string;           /* iConfiguration string, if present */
+
+        /* List of any Interface Association Descriptors in this
+         * configuration. */
+        struct usb_interface_assoc_descriptor *intf_assoc[USB_MAXIADS];
+
         /* the interfaces associated with this configuration,
          * stored in no particular order */
         struct usb_interface *interface[USB_MAXINTERFACES];
@@ -403,6 +413,8 @@ struct usb_device {
 
         unsigned auto_pm:1;             /* autosuspend/resume in progress */
         unsigned do_remote_wakeup:1;    /* remote wakeup should be enabled */
+        unsigned reset_resume:1;        /* needs reset instead of resume */
+        unsigned persist_enabled:1;     /* USB_PERSIST enabled for this dev */
         unsigned autosuspend_disabled:1; /* autosuspend and autoresume */
         unsigned autoresume_disabled:1;  /*  disabled by the user */
 #endif
@@ -770,6 +782,28 @@ static inline int usb_endpoint_is_isoc_out(const struct usb_endpoint_descriptor
         .match_flags = USB_DEVICE_ID_MATCH_INT_INFO, .bInterfaceClass = (cl), \
         .bInterfaceSubClass = (sc), .bInterfaceProtocol = (pr)
 
+/**
+ * USB_DEVICE_AND_INTERFACE_INFO - macro used to describe a specific usb device
+ *              with a class of usb interfaces
+ * @vend: the 16 bit USB Vendor ID
+ * @prod: the 16 bit USB Product ID
+ * @cl: bInterfaceClass value
+ * @sc: bInterfaceSubClass value
+ * @pr: bInterfaceProtocol value
+ *
+ * This macro is used to create a struct usb_device_id that matches a
+ * specific device with a specific class of interfaces.
+ *
+ * This is especially useful when explicitly matching devices that have
+ * vendor specific bDeviceClass values, but standards-compliant interfaces.
+ */
+#define USB_DEVICE_AND_INTERFACE_INFO(vend,prod,cl,sc,pr) \
+        .match_flags = USB_DEVICE_ID_MATCH_INT_INFO \
+                | USB_DEVICE_ID_MATCH_DEVICE, \
+        .idVendor = (vend), .idProduct = (prod), \
+        .bInterfaceClass = (cl), \
+        .bInterfaceSubClass = (sc), .bInterfaceProtocol = (pr)
+
 /* ----------------------------------------------------------------------- */
 
 /* Stuff for dynamic usb ids */
@@ -816,10 +850,15 @@ struct usbdrv_wrap {
  *      do (or don't) show up otherwise in the filesystem.
  * @suspend: Called when the device is going to be suspended by the system.
  * @resume: Called when the device is being resumed by the system.
+ * @reset_resume: Called when the suspended device has been reset instead
+ *      of being resumed.
  * @pre_reset: Called by usb_reset_composite_device() when the device
  *      is about to be reset.
  * @post_reset: Called by usb_reset_composite_device() after the device
- *      has been reset.
+ *      has been reset, or in lieu of @resume following a reset-resume
+ *      (i.e., the device is reset instead of being resumed, as might
+ *      happen if power was lost).  The second argument tells which is
+ *      the reason.
  * @id_table: USB drivers use ID table to support hotplugging.
  *      Export this with MODULE_DEVICE_TABLE(usb,...).  This must be set
  *      or your driver's probe function will never get called.
@@ -859,9 +898,10 @@ struct usb_driver {
 
         int (*suspend) (struct usb_interface *intf, pm_message_t message);
         int (*resume) (struct usb_interface *intf);
+        int (*reset_resume)(struct usb_interface *intf);
 
-        void (*pre_reset) (struct usb_interface *intf);
-        void (*post_reset) (struct usb_interface *intf);
+        int (*pre_reset)(struct usb_interface *intf);
+        int (*post_reset)(struct usb_interface *intf);
 
         const struct usb_device_id *id_table;
 
@@ -964,6 +1004,7 @@ extern int usb_disabled(void);
 #define URB_ZERO_PACKET         0x0040  /* Finish bulk OUT with short packet */
 #define URB_NO_INTERRUPT        0x0080  /* HINT: no non-error interrupt
                                          * needed */
+#define URB_FREE_BUFFER         0x0100  /* Free transfer buffer with the URB */
 
 struct usb_iso_packet_descriptor {
         unsigned int offset;
@@ -974,11 +1015,26 @@ struct usb_iso_packet_descriptor {
 
 struct urb;
 
+struct usb_anchor {
+        struct list_head urb_list;
+        wait_queue_head_t wait;
+        spinlock_t lock;
+};
+
+static inline void init_usb_anchor(struct usb_anchor *anchor)
+{
+        INIT_LIST_HEAD(&anchor->urb_list);
+        init_waitqueue_head(&anchor->wait);
+        spin_lock_init(&anchor->lock);
+}
+
 typedef void (*usb_complete_t)(struct urb *);
 
 /**
  * struct urb - USB Request Block
  * @urb_list: For use by current owner of the URB.
+ * @anchor_list: membership in the list of an anchor
+ * @anchor: to anchor URBs to a common mooring
  * @pipe: Holds endpoint number, direction, type, and more.
  *      Create these values with the eight macros available;
  *      usb_{snd,rcv}TYPEpipe(dev,endpoint), where the TYPE is "ctrl"
@@ -1151,6 +1207,8 @@ struct urb
         /* public: documented fields in the urb that can be used by drivers */
         struct list_head urb_list;      /* list head for use by the urb's
                                          * current owner */
+        struct list_head anchor_list;   /* the URB may be anchored by the driver */
+        struct usb_anchor *anchor;
         struct usb_device *dev;         /* (in) pointer to associated device */
         unsigned int pipe;              /* (in) pipe information */
         int status;                     /* (return) non-ISO status */
@@ -1286,6 +1344,11 @@ extern struct urb *usb_get_urb(struct urb *urb);
 extern int usb_submit_urb(struct urb *urb, gfp_t mem_flags);
 extern int usb_unlink_urb(struct urb *urb);
 extern void usb_kill_urb(struct urb *urb);
+extern void usb_kill_anchored_urbs(struct usb_anchor *anchor);
+extern void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor);
+extern void usb_unanchor_urb(struct urb *urb);
+extern int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor,
+                                         unsigned int timeout);
 
 void *usb_buffer_alloc (struct usb_device *dev, size_t size,
         gfp_t mem_flags, dma_addr_t *dma);
diff --git a/include/linux/usb/Kbuild b/include/linux/usb/Kbuild
index 43f160cfe003..6ce42bf9f743 100644
--- a/include/linux/usb/Kbuild
+++ b/include/linux/usb/Kbuild
@@ -1,5 +1,6 @@
 unifdef-y += audio.h
 unifdef-y += cdc.h
 unifdef-y += ch9.h
+unifdef-y += gadgetfs.h
 unifdef-y += midi.h
 
diff --git a/include/linux/usb_gadgetfs.h b/include/linux/usb/gadgetfs.h
index 8086d5a9b94e..e8654c338729 100644
--- a/include/linux/usb_gadgetfs.h
+++ b/include/linux/usb/gadgetfs.h
@@ -1,3 +1,5 @@
+#ifndef __LINUX_USB_GADGETFS_H
+#define __LINUX_USB_GADGETFS_H
 
 #include <asm/types.h>
 #include <asm/ioctl.h>
@@ -7,11 +9,12 @@
 /*
  * Filesystem based user-mode API to USB Gadget controller hardware
  *
- * Almost everything can be done with only read and write operations,
+ * Other than ep0 operations, most things are done by read() and write()
  * on endpoint files found in one directory.  They are configured by
  * writing descriptors, and then may be used for normal stream style
  * i/o requests.  When ep0 is configured, the device can enumerate;
- * when it's closed, the device disconnects from usb.
+ * when it's closed, the device disconnects from usb.  Operations on
+ * ep0 require ioctl() operations.
  *
  * Configuration and device descriptors get written to /dev/gadget/$CHIP,
  * which may then be used to read usb_gadgetfs_event structs.  The driver
@@ -21,9 +24,9 @@
  */
 
 /*
- * Events are delivered on the ep0 file descriptor, if the user mode driver
+ * Events are delivered on the ep0 file descriptor, when the user mode driver
  * reads from this file descriptor after writing the descriptors.  Don't
- * stop polling this descriptor, if you write that kind of driver.
+ * stop polling this descriptor.
  */
 
 enum usb_gadgetfs_event_type {
@@ -36,8 +39,10 @@ enum usb_gadgetfs_event_type {
         // and likely more !
 };
 
+/* NOTE:  this structure must stay the same size and layout on
+ * both 32-bit and 64-bit kernels.
+ */
 struct usb_gadgetfs_event {
-        enum usb_gadgetfs_event_type    type;
         union {
                 // NOP, DISCONNECT, SUSPEND: nothing
                 // ... some hardware can't report disconnection
@@ -46,19 +51,20 @@ struct usb_gadgetfs_event {
                 enum usb_device_speed   speed;
 
                 // SETUP: packet; DATA phase i/o precedes next event
-                // (setup.bmRequestType & USB_DIR_IN) flags direction 
+                // (setup.bmRequestType & USB_DIR_IN) flags direction
                 // ... includes SET_CONFIGURATION, SET_INTERFACE
                 struct usb_ctrlrequest  setup;
         } u;
+        enum usb_gadgetfs_event_type    type;
 };
 
 
 /* endpoint ioctls */
 
 /* IN transfers may be reported to the gadget driver as complete
- *      when the fifo is loaded, before the host reads the data;
+ *      when the fifo is loaded, before the host reads the data;
  * OUT transfers may be reported to the host's "client" driver as
- *      complete when they're sitting in the FIFO unread.
+ *      complete when they're sitting in the FIFO unread.
  * THIS returns how many bytes are "unclaimed" in the endpoint fifo
  * (needed for precise fault handling, when the hardware allows it)
  */
@@ -72,4 +78,4 @@ struct usb_gadgetfs_event {
  */
 #define GADGETFS_CLEAR_HALT     _IO('g',3)
 
-
+#endif /* __LINUX_USB_GADGETFS_H */
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index 6bac8faacbc6..8da374caf582 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -9,3 +9,6 @@
 
 /* string descriptors must not be fetched using a 255-byte read */
 #define USB_QUIRK_STRING_FETCH_255      0x00000002
+
+/* device can't resume correctly so reset it instead */
+#define USB_QUIRK_RESET_RESUME          0x00000004
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 32acbae28d24..e8b8928232c8 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -221,6 +221,9 @@ struct usb_serial_driver {
         int (*port_probe) (struct usb_serial_port *port);
         int (*port_remove) (struct usb_serial_port *port);
 
+        int (*suspend) (struct usb_serial *serial, pm_message_t message);
+        int (*resume) (struct usb_serial *serial);
+
         /* serial function calls */
         int  (*open)            (struct usb_serial_port *port, struct file * filp);
         void (*close)           (struct usb_serial_port *port, struct file * filp);
@@ -249,6 +252,9 @@ extern void usb_serial_port_softint(struct usb_serial_port *port);
 extern int usb_serial_probe(struct usb_interface *iface, const struct usb_device_id *id);
 extern void usb_serial_disconnect(struct usb_interface *iface);
 
+extern int usb_serial_suspend(struct usb_interface *intf, pm_message_t message);
+extern int usb_serial_resume(struct usb_interface *intf);
+
 extern int ezusb_writememory (struct usb_serial *serial, int address, unsigned char *data, int length, __u8 bRequest);
 extern int ezusb_set_reset (struct usb_serial *serial, unsigned char reset_bit);
 
@@ -269,6 +275,7 @@ extern void usb_serial_put(struct usb_serial *serial);
 extern int usb_serial_generic_open (struct usb_serial_port *port, struct file *filp);
 extern int usb_serial_generic_write (struct usb_serial_port *port, const unsigned char *buf, int count);
 extern void usb_serial_generic_close (struct usb_serial_port *port, struct file *filp);
+extern int usb_serial_generic_resume (struct usb_serial *serial);
 extern int usb_serial_generic_write_room (struct usb_serial_port *port);
 extern int usb_serial_generic_chars_in_buffer (struct usb_serial_port *port);
 extern void usb_serial_generic_read_bulk_callback (struct urb *urb);
diff --git a/include/linux/usb_gadget.h b/include/linux/usb_gadget.h
index e17186dbcdca..4f59b2aa8a9e 100644
--- a/include/linux/usb_gadget.h
+++ b/include/linux/usb_gadget.h
@@ -110,13 +110,6 @@ struct usb_ep_ops {
                 gfp_t gfp_flags);
         void (*free_request) (struct usb_ep *ep, struct usb_request *req);
 
-        void *(*alloc_buffer) (struct usb_ep *ep, unsigned bytes,
-                dma_addr_t *dma, gfp_t gfp_flags);
-        void (*free_buffer) (struct usb_ep *ep, void *buf, dma_addr_t dma,
-                unsigned bytes);
-        // NOTE:  on 2.6, drivers may also use dma_map() and
-        // dma_sync_single_*() to directly manage dma overhead. 
-
         int (*queue) (struct usb_ep *ep, struct usb_request *req,
                 gfp_t gfp_flags);
         int (*dequeue) (struct usb_ep *ep, struct usb_request *req);
@@ -235,47 +228,6 @@ usb_ep_free_request (struct usb_ep *ep, struct usb_request *req)
 }
 
 /**
- * usb_ep_alloc_buffer - allocate an I/O buffer
- * @ep:the endpoint associated with the buffer
- * @len:length of the desired buffer
- * @dma:pointer to the buffer's DMA address; must be valid
- * @gfp_flags:GFP_* flags to use
- *
- * Returns a new buffer, or null if one could not be allocated.
- * The buffer is suitably aligned for dma, if that endpoint uses DMA,
- * and the caller won't have to care about dma-inconsistency
- * or any hidden "bounce buffer" mechanism.  No additional per-request
- * DMA mapping will be required for such buffers.
- * Free it later with usb_ep_free_buffer().
- *
- * You don't need to use this call to allocate I/O buffers unless you
- * want to make sure drivers don't incur costs for such "bounce buffer"
- * copies or per-request DMA mappings.
- */
-static inline void *
-usb_ep_alloc_buffer (struct usb_ep *ep, unsigned len, dma_addr_t *dma,
-        gfp_t gfp_flags)
-{
-        return ep->ops->alloc_buffer (ep, len, dma, gfp_flags);
-}
-
-/**
- * usb_ep_free_buffer - frees an i/o buffer
- * @ep:the endpoint associated with the buffer
- * @buf:CPU view address of the buffer
- * @dma:the buffer's DMA address
- * @len:length of the buffer
- *
- * reverses the effect of usb_ep_alloc_buffer().
- * caller guarantees the buffer will no longer be accessed
- */
-static inline void
-usb_ep_free_buffer (struct usb_ep *ep, void *buf, dma_addr_t dma, unsigned len)
-{
-        ep->ops->free_buffer (ep, buf, dma, len);
-}
-
-/**
  * usb_ep_queue - queues (submits) an I/O request to an endpoint.
  * @ep:the endpoint associated with the request
  * @req:the request being submitted