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authorAmit Blay <ablay@codeaurora.org>2011-07-03 17:29:31 +0300
committerFelipe Balbi <balbi@ti.com>2011-07-08 13:57:54 +0300
commit57c97c02de0e7a59cb48d3d7666f4afaf9968e84 (patch)
tree93cabb75526859842ee1f0846aee10e3bff0b245 /drivers/usb/gadget/f_loopback.c
parent04617db7aa688598ebd3fce20691d31a5e778b45 (diff)
usb: gadget: zero: add superspeed support
This patch adds SuperSpeed descriptors to the g_zero gadget. The SuperSpeed descriptors were added both for f_soursesink and f_loopback function drivers. Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org> Signed-off-by: Amit Blay <ablay@codeaurora.org> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/f_loopback.c')
-rw-r--r--drivers/usb/gadget/f_loopback.c55
1 files changed, 54 insertions, 1 deletions
diff --git a/drivers/usb/gadget/f_loopback.c b/drivers/usb/gadget/f_loopback.c
index 375632659a0..ca660d40b11 100644
--- a/drivers/usb/gadget/f_loopback.c
+++ b/drivers/usb/gadget/f_loopback.c
@@ -118,6 +118,49 @@ static struct usb_descriptor_header *hs_loopback_descs[] = {
NULL,
};
+/* super speed support: */
+
+static struct usb_endpoint_descriptor ss_loop_source_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ .wMaxPacketSize = cpu_to_le16(1024),
+};
+
+struct usb_ss_ep_comp_descriptor ss_loop_source_comp_desc = {
+ .bLength = USB_DT_SS_EP_COMP_SIZE,
+ .bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
+ .bMaxBurst = 0,
+ .bmAttributes = 0,
+ .wBytesPerInterval = 0,
+};
+
+static struct usb_endpoint_descriptor ss_loop_sink_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ .wMaxPacketSize = cpu_to_le16(1024),
+};
+
+struct usb_ss_ep_comp_descriptor ss_loop_sink_comp_desc = {
+ .bLength = USB_DT_SS_EP_COMP_SIZE,
+ .bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
+ .bMaxBurst = 0,
+ .bmAttributes = 0,
+ .wBytesPerInterval = 0,
+};
+
+static struct usb_descriptor_header *ss_loopback_descs[] = {
+ (struct usb_descriptor_header *) &loopback_intf,
+ (struct usb_descriptor_header *) &ss_loop_source_desc,
+ (struct usb_descriptor_header *) &ss_loop_source_comp_desc,
+ (struct usb_descriptor_header *) &ss_loop_sink_desc,
+ (struct usb_descriptor_header *) &ss_loop_sink_comp_desc,
+ NULL,
+};
+
/* function-specific strings: */
static struct usb_string strings_loopback[] = {
@@ -175,8 +218,18 @@ autoconf_fail:
f->hs_descriptors = hs_loopback_descs;
}
+ /* support super speed hardware */
+ if (gadget_is_superspeed(c->cdev->gadget)) {
+ ss_loop_source_desc.bEndpointAddress =
+ fs_loop_source_desc.bEndpointAddress;
+ ss_loop_sink_desc.bEndpointAddress =
+ fs_loop_sink_desc.bEndpointAddress;
+ f->ss_descriptors = ss_loopback_descs;
+ }
+
DBG(cdev, "%s speed %s: IN/%s, OUT/%s\n",
- gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
+ (gadget_is_superspeed(c->cdev->gadget) ? "super" :
+ (gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full")),
f->name, loop->in_ep->name, loop->out_ep->name);
return 0;
}