5 files changed, 152 insertions, 77 deletions

diff --git a/include/linux/usb.h b/include/linux/usb.h
index 4f33a58fa9d1..c5c8f169d3cf 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -52,6 +52,7 @@ struct ep_device;
  * @ep_dev: ep_device for sysfs info
  * @extra: descriptors following this endpoint in the configuration
  * @extralen: how many bytes of "extra" are valid
+ * @enabled: URBs may be submitted to this endpoint
  *
  * USB requests are always queued to a given endpoint, identified by a
  * descriptor within an active interface in a given USB configuration.
@@ -64,6 +65,7 @@ struct usb_host_endpoint {
 
         unsigned char *extra;   /* Extra descriptors */
         int extralen;
+        int enabled;
 };
 
 /* host-side wrapper for one interface setting's parsed descriptors */
@@ -344,6 +346,11 @@ struct usb_tt;
  *
  * Usbcore drivers should not set usbdev->state directly.  Instead use
  * usb_set_device_state().
+ *
+ * @authorized: (user space) policy determines if we authorize this
+ *              device to be used or not. By default, wired USB
+ *              devices are authorized. WUSB devices are not, until we
+ *              authorize them from user space. FIXME -- complete doc
  */
 struct usb_device {
         int             devnum;         /* Address on USB bus */
@@ -376,8 +383,11 @@ struct usb_device {
         u8 portnum;                     /* Parent port number (origin 1) */
         u8 level;                       /* Number of USB hub ancestors */
 
+        unsigned can_submit:1;          /* URBs may be submitted */
         unsigned discon_suspended:1;    /* Disconnected while suspended */
         unsigned have_langid:1;         /* whether string_langid is valid */
+        unsigned authorized:1;          /* Policy has determined we can use it */
+        unsigned wusb:1;                /* Device is Wireless USB */
         int string_langid;              /* language ID for strings */
 
         /* static strings from the device */
@@ -405,6 +415,7 @@ struct usb_device {
 
         int pm_usage_cnt;               /* usage counter for autosuspend */
         u32 quirks;                     /* quirks of the whole device */
+        atomic_t urbnum;                /* number of URBs submitted for the whole device */
 
 #ifdef CONFIG_PM
         struct delayed_work autosuspend; /* for delayed autosuspends */
@@ -419,6 +430,7 @@ struct usb_device {
         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 */
+        unsigned skip_sys_resume:1;     /* skip the next system resume */
 #endif
 };
 #define to_usb_device(d) container_of(d, struct usb_device, dev)
@@ -555,6 +567,29 @@ static inline int usb_make_path (struct usb_device *dev, char *buf,
 /*-------------------------------------------------------------------------*/
 
 /**
+ * usb_endpoint_num - get the endpoint's number
+ * @epd: endpoint to be checked
+ *
+ * Returns @epd's number: 0 to 15.
+ */
+static inline int usb_endpoint_num(const struct usb_endpoint_descriptor *epd)
+{
+        return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+}
+
+/**
+ * usb_endpoint_type - get the endpoint's transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according
+ * to @epd's transfer type.
+ */
+static inline int usb_endpoint_type(const struct usb_endpoint_descriptor *epd)
+{
+        return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
+}
+
+/**
  * usb_endpoint_dir_in - check if the endpoint has IN direction
  * @epd: endpoint to be checked
  *
@@ -996,6 +1031,8 @@ extern int usb_disabled(void);
 
 /*
  * urb->transfer_flags:
+ *
+ * Note: URB_DIR_IN/OUT is automatically set in usb_submit_urb().
  */
 #define URB_SHORT_NOT_OK        0x0001  /* report short reads as errors */
 #define URB_ISO_ASAP            0x0002  /* iso-only, urb->start_frame
@@ -1008,6 +1045,10 @@ extern int usb_disabled(void);
                                          * needed */
 #define URB_FREE_BUFFER         0x0100  /* Free transfer buffer with the URB */
 
+#define URB_DIR_IN              0x0200  /* Transfer from device to host */
+#define URB_DIR_OUT             0
+#define URB_DIR_MASK            URB_DIR_IN
+
 struct usb_iso_packet_descriptor {
         unsigned int offset;
         unsigned int length;            /* expected length */
@@ -1037,6 +1078,8 @@ typedef void (*usb_complete_t)(struct urb *);
  * @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
+ * @ep: Points to the endpoint's data structure.  Will eventually
+ *      replace @pipe.
  * @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"
@@ -1201,10 +1244,10 @@ struct urb
 {
         /* private: usb core and host controller only fields in the urb */
         struct kref kref;               /* reference count of the URB */
-        spinlock_t lock;                /* lock for the URB */
         void *hcpriv;                   /* private data for host controller */
         atomic_t use_count;             /* concurrent submissions counter */
         u8 reject;                      /* submissions will fail */
+        int unlinked;                   /* unlink error code */
 
         /* 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
@@ -1212,6 +1255,7 @@ struct urb
         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 */
+        struct usb_host_endpoint *ep;   /* (internal) pointer to endpoint struct */
         unsigned int pipe;              /* (in) pipe information */
         int status;                     /* (return) non-ISO status */
         unsigned int transfer_flags;    /* (in) URB_SHORT_NOT_OK | ...*/
@@ -1257,7 +1301,6 @@ static inline void usb_fill_control_urb (struct urb *urb,
                                          usb_complete_t complete_fn,
                                          void *context)
 {
-        spin_lock_init(&urb->lock);
         urb->dev = dev;
         urb->pipe = pipe;
         urb->setup_packet = setup_packet;
@@ -1288,7 +1331,6 @@ static inline void usb_fill_bulk_urb (struct urb *urb,
                                       usb_complete_t complete_fn,
                                       void *context)
 {
-        spin_lock_init(&urb->lock);
         urb->dev = dev;
         urb->pipe = pipe;
         urb->transfer_buffer = transfer_buffer;
@@ -1324,7 +1366,6 @@ static inline void usb_fill_int_urb (struct urb *urb,
                                      void *context,
                                      int interval)
 {
-        spin_lock_init(&urb->lock);
         urb->dev = dev;
         urb->pipe = pipe;
         urb->transfer_buffer = transfer_buffer;
@@ -1352,6 +1393,30 @@ extern void usb_unanchor_urb(struct urb *urb);
 extern int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor,
                                          unsigned int timeout);
 
+/**
+ * usb_urb_dir_in - check if an URB describes an IN transfer
+ * @urb: URB to be checked
+ *
+ * Returns 1 if @urb describes an IN transfer (device-to-host),
+ * otherwise 0.
+ */
+static inline int usb_urb_dir_in(struct urb *urb)
+{
+        return (urb->transfer_flags & URB_DIR_MASK) == URB_DIR_IN;
+}
+
+/**
+ * usb_urb_dir_out - check if an URB describes an OUT transfer
+ * @urb: URB to be checked
+ *
+ * Returns 1 if @urb describes an OUT transfer (host-to-device),
+ * otherwise 0.
+ */
+static inline int usb_urb_dir_out(struct urb *urb)
+{
+        return (urb->transfer_flags & URB_DIR_MASK) == URB_DIR_OUT;
+}
+
 void *usb_buffer_alloc (struct usb_device *dev, size_t size,
         gfp_t mem_flags, dma_addr_t *dma);
 void usb_buffer_free (struct usb_device *dev, size_t size,
@@ -1364,13 +1429,13 @@ void usb_buffer_unmap (struct urb *urb);
 #endif
 
 struct scatterlist;
-int usb_buffer_map_sg(const struct usb_device *dev, unsigned pipe,
+int usb_buffer_map_sg(const struct usb_device *dev, int is_in,
                       struct scatterlist *sg, int nents);
 #if 0
-void usb_buffer_dmasync_sg(const struct usb_device *dev, unsigned pipe,
+void usb_buffer_dmasync_sg(const struct usb_device *dev, int is_in,
                            struct scatterlist *sg, int n_hw_ents);
 #endif
-void usb_buffer_unmap_sg(const struct usb_device *dev, unsigned pipe,
+void usb_buffer_unmap_sg(const struct usb_device *dev, int is_in,
                          struct scatterlist *sg, int n_hw_ents);
 
 /*-------------------------------------------------------------------*
diff --git a/include/linux/usb_gadget.h b/include/linux/usb/gadget.h
index 4f59b2aa8a9e..46705e91573d 100644
--- a/include/linux/usb_gadget.h
+++ b/include/linux/usb/gadget.h
@@ -1,5 +1,5 @@
 /*
- * <linux/usb_gadget.h>
+ * <linux/usb/gadget.h>
  *
  * We call the USB code inside a Linux-based peripheral device a "gadget"
  * driver, except for the hardware-specific bus glue.  One USB host can
@@ -22,10 +22,10 @@ struct usb_ep;
 /**
  * struct usb_request - describes one i/o request
  * @buf: Buffer used for data.  Always provide this; some controllers
- *      only use PIO, or don't use DMA for some endpoints.
+ *      only use PIO, or don't use DMA for some endpoints.
  * @dma: DMA address corresponding to 'buf'.  If you don't set this
- *      field, and the usb controller needs one, it is responsible
- *      for mapping and unmapping the buffer.
+ *      field, and the usb controller needs one, it is responsible
+ *      for mapping and unmapping the buffer.
  * @length: Length of that data
  * @no_interrupt: If true, hints that no completion irq is needed.
  *      Helpful sometimes with deep request queues that are handled
@@ -45,16 +45,16 @@ struct usb_ep;
  * @context: For use by the completion callback
  * @list: For use by the gadget driver.
  * @status: Reports completion code, zero or a negative errno.
- *      Normally, faults block the transfer queue from advancing until
- *      the completion callback returns.
- *      Code "-ESHUTDOWN" indicates completion caused by device disconnect,
- *      or when the driver disabled the endpoint.
+ *      Normally, faults block the transfer queue from advancing until
+ *      the completion callback returns.
+ *      Code "-ESHUTDOWN" indicates completion caused by device disconnect,
+ *      or when the driver disabled the endpoint.
  * @actual: Reports bytes transferred to/from the buffer.  For reads (OUT
- *      transfers) this may be less than the requested length.  If the
- *      short_not_ok flag is set, short reads are treated as errors
- *      even when status otherwise indicates successful completion.
- *      Note that for writes (IN transfers) some data bytes may still
- *      reside in a device-side FIFO when the request is reported as
+ *      transfers) this may be less than the requested length.  If the
+ *      short_not_ok flag is set, short reads are treated as errors
+ *      even when status otherwise indicates successful completion.
+ *      Note that for writes (IN transfers) some data bytes may still
+ *      reside in a device-side FIFO when the request is reported as
  *      complete.
  *
  * These are allocated/freed through the endpoint they're used with.  The
@@ -128,7 +128,7 @@ struct usb_ep_ops {
  *      value can sometimes be reduced (hardware allowing), according to
  *      the endpoint descriptor used to configure the endpoint.
  * @driver_data:for use by the gadget driver.  all other fields are
- *      read-only to gadget drivers.
+ *      read-only to gadget drivers.
  *
  * the bus controller driver lists all the general purpose endpoints in
  * gadget->ep_list.  the control endpoint (gadget->ep0) is not in that list,
@@ -148,10 +148,10 @@ struct usb_ep {
 /**
  * usb_ep_enable - configure endpoint, making it usable
  * @ep:the endpoint being configured.  may not be the endpoint named "ep0".
- *      drivers discover endpoints through the ep_list of a usb_gadget.
+ *      drivers discover endpoints through the ep_list of a usb_gadget.
  * @desc:descriptor for desired behavior.  caller guarantees this pointer
- *      remains valid until the endpoint is disabled; the data byte order
- *      is little-endian (usb-standard).
+ *      remains valid until the endpoint is disabled; the data byte order
+ *      is little-endian (usb-standard).
  *
  * when configurations are set, or when interface settings change, the driver
  * will enable or disable the relevant endpoints.  while it is enabled, an
@@ -232,7 +232,7 @@ usb_ep_free_request (struct usb_ep *ep, struct usb_request *req)
  * @ep:the endpoint associated with the request
  * @req:the request being submitted
  * @gfp_flags: GFP_* flags to use in case the lower level driver couldn't
- *      pre-allocate all necessary memory with the request.
+ *      pre-allocate all necessary memory with the request.
  *
  * This tells the device controller to perform the specified request through
  * that endpoint (reading or writing a buffer).  When the request completes,
@@ -415,7 +415,7 @@ struct usb_gadget_ops {
  * struct usb_gadget - represents a usb slave device
  * @ops: Function pointers used to access hardware-specific operations.
  * @ep0: Endpoint zero, used when reading or writing responses to
- *      driver setup() requests
+ *      driver setup() requests
  * @ep_list: List of other endpoints supported by the device.
  * @speed: Speed of current connection to USB host.
  * @is_dualspeed: True if the controller supports both high and full speed
@@ -432,7 +432,7 @@ struct usb_gadget_ops {
  * @b_hnp_enable: OTG device feature flag, indicating that the A-Host
  *      enabled HNP support.
  * @name: Identifies the controller hardware type.  Used in diagnostics
- *      and sometimes configuration.
+ *      and sometimes configuration.
  * @dev: Driver model state for this abstract device.
  *
  * Gadgets have a mostly-portable "gadget driver" implementing device
@@ -480,6 +480,39 @@ static inline void *get_gadget_data (struct usb_gadget *gadget)
 
 
 /**
+ * gadget_is_dualspeed - return true iff the hardware handles high speed
+ * @gadget: controller that might support both high and full speeds
+ */
+static inline int gadget_is_dualspeed(struct usb_gadget *g)
+{
+#ifdef CONFIG_USB_GADGET_DUALSPEED
+        /* runtime test would check "g->is_dualspeed" ... that might be
+         * useful to work around hardware bugs, but is mostly pointless
+         */
+        return 1;
+#else
+        return 0;
+#endif
+}
+
+/**
+ * gadget_is_otg - return true iff the hardware is OTG-ready
+ * @gadget: controller that might have a Mini-AB connector
+ *
+ * This is a runtime test, since kernels with a USB-OTG stack sometimes
+ * run on boards which only have a Mini-B (or Mini-A) connector.
+ */
+static inline int gadget_is_otg(struct usb_gadget *g)
+{
+#ifdef CONFIG_USB_OTG
+        return g->is_otg;
+#else
+        return 0;
+#endif
+}
+
+
+/**
  * usb_gadget_frame_number - returns the current frame number
  * @gadget: controller that reports the frame number
  *
@@ -655,23 +688,23 @@ usb_gadget_disconnect (struct usb_gadget *gadget)
  * @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.
+ *      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
- *      management.  The 16 bit members of the setup data are in
- *      USB byte order. Called in_interrupt; this may not sleep.  Driver
+ *      the hardware level driver. Most calls must be handled by
+ *      the gadget driver, including descriptor and configuration
+ *      management.  The 16 bit members of the setup data are in
+ *      USB byte order. Called in_interrupt; this may not sleep.  Driver
  *      queues a response to ep0, or returns negative to stall.
  * @disconnect: Invoked after all transfers have been stopped,
- *      when the host is disconnected.  May be called in_interrupt; this
- *      may not sleep.  Some devices can't detect disconnect, so this might
+ *      when the host is disconnected.  May be called in_interrupt; this
+ *      may not sleep.  Some devices can't detect disconnect, so this might
  *      not be called except as part of controller shutdown.
  * @unbind: Invoked when the driver is unbound from a gadget,
- *      usually from rmmod (after a disconnect is reported).
- *      Called in a context that permits sleeping.
+ *      usually from rmmod (after a disconnect is reported).
+ *      Called in a context that permits sleeping.
  * @suspend: Invoked on USB suspend.  May be called in_interrupt.
  * @resume: Invoked on USB resume.  May be called in_interrupt.
  * @driver: Driver model state for this driver.
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index 8da374caf582..2692ec9389ca 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -4,11 +4,8 @@
  * belong here.
  */
 
-/* device must not be autosuspended */
-#define USB_QUIRK_NO_AUTOSUSPEND        0x00000001
-
 /* string descriptors must not be fetched using a 255-byte read */
-#define USB_QUIRK_STRING_FETCH_255      0x00000002
+#define USB_QUIRK_STRING_FETCH_255      0x00000001
 
 /* device can't resume correctly so reset it instead */
-#define USB_QUIRK_RESET_RESUME          0x00000004
+#define USB_QUIRK_RESET_RESUME          0x00000002
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index e8b8928232c8..488ce128885c 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -141,7 +141,7 @@ struct usb_serial {
 };
 #define to_usb_serial(d) container_of(d, struct usb_serial, kref)
 
-#define NUM_DONT_CARE   (-1)
+#define NUM_DONT_CARE   99
 
 /* get and set the serial private data pointer helper functions */
 static inline void *usb_get_serial_data (struct usb_serial *serial)
@@ -160,12 +160,18 @@ static inline void usb_set_serial_data (struct usb_serial *serial, void *data)
  *      in the syslog messages when a device is inserted or removed.
  * @id_table: pointer to a list of usb_device_id structures that define all
  *      of the devices this structure can support.
- * @num_interrupt_in: the number of interrupt in endpoints this device will
- *      have.
- * @num_interrupt_out: the number of interrupt out endpoints this device will
- *      have.
- * @num_bulk_in: the number of bulk in endpoints this device will have.
- * @num_bulk_out: the number of bulk out endpoints this device will have.
+ * @num_interrupt_in: If a device doesn't have this many interrupt-in
+ *      endpoints, it won't be sent to the driver's attach() method.
+ *      (But it might still be sent to the probe() method.)
+ * @num_interrupt_out: If a device doesn't have this many interrupt-out
+ *      endpoints, it won't be sent to the driver's attach() method.
+ *      (But it might still be sent to the probe() method.)
+ * @num_bulk_in: If a device doesn't have this many bulk-in
+ *      endpoints, it won't be sent to the driver's attach() method.
+ *      (But it might still be sent to the probe() method.)
+ * @num_bulk_out: If a device doesn't have this many bulk-out
+ *      endpoints, it won't be sent to the driver's attach() method.
+ *      (But it might still be sent to the probe() method.)
  * @num_ports: the number of different ports this device will have.
  * @calc_num_ports: pointer to a function to determine how many ports this
  *      device has dynamically.  It will be called after the probe()
diff --git a/include/linux/usb_sl811.h b/include/linux/usb_sl811.h
deleted file mode 100644
index 4f2d012d7309..000000000000
--- a/include/linux/usb_sl811.h
+++ /dev/null
@@ -1,26 +0,0 @@
-
-/*
- * board initialization should put one of these into dev->platform_data
- * and place the sl811hs onto platform_bus named "sl811-hcd".
- */
-
-struct sl811_platform_data {
-        unsigned        can_wakeup:1;
-
-        /* given port_power, msec/2 after power on till power good */
-        u8              potpg;
-
-        /* mA/2 power supplied on this port (max = default = 250) */
-        u8              power;
-
-        /* sl811 relies on an external source of VBUS current */
-        void            (*port_power)(struct device *dev, int is_on);
-
-        /* pulse sl811 nRST (probably with a GPIO) */
-        void            (*reset)(struct device *dev);
-
-        // some boards need something like these:
-        // int          (*check_overcurrent)(struct device *dev);
-        // void         (*clock_enable)(struct device *dev, int is_on);
-};
-