usb: gadget: uvc: Add super-speed support to UVC webcam gadget

This patch adds super-speed support to UVC webcam gadget.

Also in this patch:
	- We add the configurability to pass bInterval, bMaxBurst, mult
	  factors for video streaming endpoint (ISOC IN) through module
	  parameters.

	- We use config_ep_by_speed helper routine to configure video
	  streaming endpoint.

Signed-off-by: Bhupesh Sharma <bhupesh.sharma@st.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 25 insertions, 4 deletions

diff --git a/drivers/usb/gadget/webcam.c b/drivers/usb/gadget/webcam.c
index 668fe128f2ef..120e134e805e 100644
--- a/drivers/usb/gadget/webcam.c
+++ b/drivers/usb/gadget/webcam.c
@@ -272,7 +272,15 @@ static const struct uvc_color_matching_descriptor uvc_color_matching = {
         .bMatrixCoefficients    = 4,
 };
 
-static const struct uvc_descriptor_header * const uvc_control_cls[] = {
+static const struct uvc_descriptor_header * const uvc_fs_control_cls[] = {
+        (const struct uvc_descriptor_header *) &uvc_control_header,
+        (const struct uvc_descriptor_header *) &uvc_camera_terminal,
+        (const struct uvc_descriptor_header *) &uvc_processing,
+        (const struct uvc_descriptor_header *) &uvc_output_terminal,
+        NULL,
+};
+
+static const struct uvc_descriptor_header * const uvc_ss_control_cls[] = {
         (const struct uvc_descriptor_header *) &uvc_control_header,
         (const struct uvc_descriptor_header *) &uvc_camera_terminal,
         (const struct uvc_descriptor_header *) &uvc_processing,
@@ -304,6 +312,18 @@ static const struct uvc_descriptor_header * const uvc_hs_streaming_cls[] = {
         NULL,
 };
 
+static const struct uvc_descriptor_header * const uvc_ss_streaming_cls[] = {
+        (const struct uvc_descriptor_header *) &uvc_input_header,
+        (const struct uvc_descriptor_header *) &uvc_format_yuv,
+        (const struct uvc_descriptor_header *) &uvc_frame_yuv_360p,
+        (const struct uvc_descriptor_header *) &uvc_frame_yuv_720p,
+        (const struct uvc_descriptor_header *) &uvc_format_mjpg,
+        (const struct uvc_descriptor_header *) &uvc_frame_mjpg_360p,
+        (const struct uvc_descriptor_header *) &uvc_frame_mjpg_720p,
+        (const struct uvc_descriptor_header *) &uvc_color_matching,
+        NULL,
+};
+
 /* --------------------------------------------------------------------------
  * USB configuration
  */
@@ -311,8 +331,9 @@ static const struct uvc_descriptor_header * const uvc_hs_streaming_cls[] = {
 static int __init
 webcam_config_bind(struct usb_configuration *c)
 {
-        return uvc_bind_config(c, uvc_control_cls, uvc_fs_streaming_cls,
-                               uvc_hs_streaming_cls);
+        return uvc_bind_config(c, uvc_fs_control_cls, uvc_ss_control_cls,
+                uvc_fs_streaming_cls, uvc_hs_streaming_cls,
+                uvc_ss_streaming_cls);
 }
 
 static struct usb_configuration webcam_config_driver = {
@@ -373,7 +394,7 @@ static struct usb_composite_driver webcam_driver = {
         .name           = "g_webcam",
         .dev            = &webcam_device_descriptor,
         .strings        = webcam_device_strings,
-        .max_speed      = USB_SPEED_HIGH,
+        .max_speed      = USB_SPEED_SUPER,
         .unbind         = webcam_unbind,
 };