usb: dwc2: gadget: add TEST_MODE feature support
Handle SET_FEATURE TEST_MODE request sent by the host.
Slightly rework FEATURE request handling to allow parsing
other request types than Endpoint.
Also add a debugfs to change test mode value from user space.
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index f09b3de..c750fd3 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -567,12 +567,14 @@
* @num_of_eps: Number of available EPs (excluding EP0)
* @debug_root: Root directrory for debugfs.
* @debug_file: Main status file for debugfs.
+ * @debug_testmode: Testmode status file for debugfs.
* @debug_fifo: FIFO status file for debugfs.
* @ep0_reply: Request used for ep0 reply.
* @ep0_buff: Buffer for EP0 reply data, if needed.
* @ctrl_buff: Buffer for EP0 control requests.
* @ctrl_req: Request for EP0 control packets.
* @ep0_state: EP0 control transfers state
+ * @test_mode: USB test mode requested by the host
* @last_rst: Time of last reset
* @eps: The endpoints being supplied to the gadget framework
* @g_using_dma: Indicate if dma usage is enabled
@@ -610,6 +612,7 @@
struct dentry *debug_root;
struct dentry *debug_file;
+ struct dentry *debug_testmode;
struct dentry *debug_fifo;
/* DWC OTG HW Release versions */
@@ -706,6 +709,7 @@
void *ep0_buff;
void *ctrl_buff;
enum dwc2_ep0_state ep0_state;
+ u8 test_mode;
struct usb_gadget gadget;
unsigned int enabled:1;