1 files changed, 73 insertions, 15 deletions

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index dd1571db55e7..087f4b931833 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -15,7 +15,13 @@
 #ifndef __LINUX_USB_GADGET_H
 #define __LINUX_USB_GADGET_H
 
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/list.h>
 #include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/usb/ch9.h>
 
 struct usb_ep;
 
@@ -27,6 +33,7 @@ struct usb_ep;
  *      field, and the usb controller needs one, it is responsible
  *      for mapping and unmapping the buffer.
  * @length: Length of that data
+ * @stream_id: The stream id, when USB3.0 bulk streams are being used
  * @no_interrupt: If true, hints that no completion irq is needed.
  *      Helpful sometimes with deep request queues that are handled
  *      directly by DMA controllers.
@@ -81,6 +88,7 @@ struct usb_request {
         unsigned                length;
         dma_addr_t              dma;
 
+        unsigned                stream_id:16;
         unsigned                no_interrupt:1;
         unsigned                zero:1;
         unsigned                short_not_ok:1;
@@ -131,8 +139,17 @@ struct usb_ep_ops {
  * @maxpacket:The maximum packet size used on this endpoint.  The initial
  *      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.
+ * @max_streams: The maximum number of streams supported
+ *      by this EP (0 - 16, actual number is 2^n)
+ * @mult: multiplier, 'mult' value for SS Isoc EPs
+ * @maxburst: the maximum number of bursts supported by this EP (for usb3)
+ * @driver_data:for use by the gadget driver.
+ * @address: used to identify the endpoint when finding descriptor that
+ *      matches connection speed
+ * @desc: endpoint descriptor.  This pointer is set before the endpoint is
+ *      enabled and remains valid until the endpoint is disabled.
+ * @comp_desc: In case of SuperSpeed support, this is the endpoint companion
+ *      descriptor that is used to configure the endpoint
  *
  * the bus controller driver lists all the general purpose endpoints in
  * gadget->ep_list.  the control endpoint (gadget->ep0) is not in that list,
@@ -145,6 +162,12 @@ struct usb_ep {
         const struct usb_ep_ops *ops;
         struct list_head        ep_list;
         unsigned                maxpacket:16;
+        unsigned                max_streams:16;
+        unsigned                mult:2;
+        unsigned                maxburst:4;
+        u8                      address;
+        const struct usb_endpoint_descriptor    *desc;
+        const struct usb_ss_ep_comp_descriptor  *comp_desc;
 };
 
 /*-------------------------------------------------------------------------*/
@@ -153,11 +176,8 @@ 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.
- * @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).
  *
- * when configurations are set, or when interface settings change, the driver
+ * When configurations are set, or when interface settings change, the driver
  * will enable or disable the relevant endpoints.  while it is enabled, an
  * endpoint may be used for i/o until the driver receives a disconnect() from
  * the host or until the endpoint is disabled.
@@ -172,10 +192,9 @@ struct usb_ep {
  *
  * returns zero, or a negative error code.
  */
-static inline int usb_ep_enable(struct usb_ep *ep,
-                                const struct usb_endpoint_descriptor *desc)
+static inline int usb_ep_enable(struct usb_ep *ep)
 {
-        return ep->ops->enable(ep, desc);
+        return ep->ops->enable(ep, ep->desc);
 }
 
 /**
@@ -416,7 +435,16 @@ static inline void usb_ep_fifo_flush(struct usb_ep *ep)
 
 /*-------------------------------------------------------------------------*/
 
+struct usb_dcd_config_params {
+        __u8  bU1devExitLat;    /* U1 Device exit Latency */
+#define USB_DEFULT_U1_DEV_EXIT_LAT      0x01    /* Less then 1 microsec */
+        __le16 bU2DevExitLat;   /* U2 Device exit Latency */
+#define USB_DEFULT_U2_DEV_EXIT_LAT      0x1F4   /* Less then 500 microsec */
+};
+
+
 struct usb_gadget;
+struct usb_gadget_driver;
 
 /* the rest of the api to the controller hardware: device operations,
  * which don't involve endpoints (or i/o).
@@ -430,6 +458,16 @@ struct usb_gadget_ops {
         int     (*pullup) (struct usb_gadget *, int is_on);
         int     (*ioctl)(struct usb_gadget *,
                                 unsigned code, unsigned long param);
+        void    (*get_config_params)(struct usb_dcd_config_params *);
+        int     (*udc_start)(struct usb_gadget *,
+                        struct usb_gadget_driver *);
+        int     (*udc_stop)(struct usb_gadget *,
+                        struct usb_gadget_driver *);
+
+        /* Those two are deprecated */
+        int     (*start)(struct usb_gadget_driver *,
+                        int (*bind)(struct usb_gadget *));
+        int     (*stop)(struct usb_gadget_driver *);
 };
 
 /**
@@ -521,6 +559,24 @@ static inline int gadget_is_dualspeed(struct usb_gadget *g)
 }
 
 /**
+ * gadget_is_superspeed() - return true if the hardware handles
+ * supperspeed
+ * @g: controller that might support supper speed
+ */
+static inline int gadget_is_superspeed(struct usb_gadget *g)
+{
+#ifdef CONFIG_USB_GADGET_SUPERSPEED
+        /*
+         * runtime test would check "g->is_superspeed" ... 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
  * @g: controller that might have a Mini-AB connector
  *
@@ -821,6 +877,9 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
  */
 int usb_gadget_unregister_driver(struct usb_gadget_driver *driver);
 
+extern int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget);
+extern void usb_del_gadget_udc(struct usb_gadget *gadget);
+
 /*-------------------------------------------------------------------------*/
 
 /* utility to simplify dealing with string descriptors */
@@ -870,12 +929,6 @@ int usb_gadget_config_buf(const struct usb_config_descriptor *config,
 struct usb_descriptor_header **usb_copy_descriptors(
                 struct usb_descriptor_header **);
 
-/* return copy of endpoint descriptor given original descriptor set */
-struct usb_endpoint_descriptor *usb_find_endpoint(
-        struct usb_descriptor_header **src,
-        struct usb_descriptor_header **copy,
-        struct usb_endpoint_descriptor *match);
-
 /**
  * usb_free_descriptors - free descriptors returned by usb_copy_descriptors()
  * @v: vector of descriptors
@@ -892,6 +945,11 @@ static inline void usb_free_descriptors(struct usb_descriptor_header **v)
 extern struct usb_ep *usb_ep_autoconfig(struct usb_gadget *,
                         struct usb_endpoint_descriptor *);
 
+
+extern struct usb_ep *usb_ep_autoconfig_ss(struct usb_gadget *,
+                        struct usb_endpoint_descriptor *,
+                        struct usb_ss_ep_comp_descriptor *);
+
 extern void usb_ep_autoconfig_reset(struct usb_gadget *);
 
 #endif /* __LINUX_USB_GADGET_H */