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authorKishon Vijay Abraham I <kishon@ti.com>2015-02-23 18:39:58 +0530
committerMarek Vasut <marex@denx.de>2015-04-14 05:48:09 +0200
commit747a0a5b387fd7caab2d9a61b23386d5cd42c7d7 (patch)
tree330ba32c809b0f0d20de69da815ac489d04081a3 /include/linux/usb
parent18be4cb151f066cc0ffff40819a258376717f8ed (diff)
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usb: dwc3: gadget: make dwc3 gadget build in uboot
Did a bunch of things to get dwc3/gadget.c compile in u-boot without build errors and warnings *) Changed the included header files to that used in u-boot. *) Used dma_alloc_coherent and dma_free_coherent APIs of u-boot *) removed sg support *) remove jiffies and used a simple while loop *) removed irq support and added a function to call these interrupt handler. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Diffstat (limited to 'include/linux/usb')
-rw-r--r--include/linux/usb/gadget.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 1960958..93a5ffc 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -31,6 +31,7 @@ struct usb_ep;
* @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.
+ * @stream_id: The stream id, when USB3.0 bulk streams are being used
* @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
@@ -85,6 +86,7 @@ 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;
@@ -121,6 +123,7 @@ struct usb_ep_ops {
int (*dequeue) (struct usb_ep *ep, struct usb_request *req);
int (*set_halt) (struct usb_ep *ep, int value);
+ int (*set_wedge)(struct usb_ep *ep);
int (*fifo_status) (struct usb_ep *ep);
void (*fifo_flush) (struct usb_ep *ep);
};
@@ -133,8 +136,18 @@ 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.
+ * @maxpacket_limit:The maximum packet size value which can be handled by this
+ * endpoint. It's set once by UDC driver when endpoint is initialized, and
+ * should not be changed. Should not be confused with maxpacket.
+ * @max_streams: The maximum number of streams supported
+ * by this EP (0 - 16, actual number is 2^n)
+ * @maxburst: the maximum number of bursts supported by this EP (for usb3)
* @driver_data:for use by the gadget driver. all other fields are
* read-only to gadget drivers.
+ * @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,
@@ -146,11 +159,31 @@ struct usb_ep {
const struct usb_ep_ops *ops;
struct list_head ep_list;
unsigned maxpacket:16;
+ unsigned maxpacket_limit:16;
+ unsigned max_streams:16;
+ unsigned maxburst:5;
+ const struct usb_endpoint_descriptor *desc;
+ const struct usb_ss_ep_comp_descriptor *comp_desc;
};
/*-------------------------------------------------------------------------*/
/**
+ * usb_ep_set_maxpacket_limit - set maximum packet size limit for endpoint
+ * @ep:the endpoint being configured
+ * @maxpacket_limit:value of maximum packet size limit
+ *
+ * This function shoud be used only in UDC drivers to initialize endpoint
+ * (usually in probe function).
+ */
+static inline void usb_ep_set_maxpacket_limit(struct usb_ep *ep,
+ unsigned maxpacket_limit)
+{
+ ep->maxpacket_limit = maxpacket_limit;
+ ep->maxpacket = maxpacket_limit;
+}
+
+/**
* 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.
@@ -422,6 +455,8 @@ struct usb_gadget_ops {
* driver setup() requests
* @ep_list: List of other endpoints supported by the device.
* @speed: Speed of current connection to USB host.
+ * @max_speed: Maximal speed the UDC can handle. UDC must support this
+ * and all slower speeds.
* @is_dualspeed: true if the controller supports both high and full speed
* operation. If it does, the gadget driver must also support both.
* @is_otg: true if the USB device port uses a Mini-AB jack, so that the
@@ -438,6 +473,8 @@ struct usb_gadget_ops {
* @name: Identifies the controller hardware type. Used in diagnostics
* and sometimes configuration.
* @dev: Driver model state for this abstract device.
+ * @quirk_ep_out_aligned_size: epout requires buffer size to be aligned to
+ * MaxPacketSize.
*
* Gadgets have a mostly-portable "gadget driver" implementing device
* functions, handling all usb configurations and interfaces. Gadget
@@ -463,6 +500,7 @@ struct usb_gadget {
struct usb_ep *ep0;
struct list_head ep_list; /* of usb_ep */
enum usb_device_speed speed;
+ enum usb_device_speed max_speed;
enum usb_device_state state;
unsigned is_dualspeed:1;
unsigned is_otg:1;
@@ -472,6 +510,7 @@ struct usb_gadget {
unsigned a_alt_hnp_support:1;
const char *name;
struct device dev;
+ unsigned quirk_ep_out_aligned_size:1;
};
static inline void set_gadget_data(struct usb_gadget *gadget, void *data)