USB: Add super speed descriptors for android functions
Update android function drivers like diag, adb, modem, rmnet, mtp
and accessory to operate in super speed. The burst capability is
not enabled for now.
Change-Id: Ie95cbfc9444c56c8268b70e2916713190699c71a
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
diff --git a/drivers/usb/gadget/f_mtp.c b/drivers/usb/gadget/f_mtp.c
index ccbc330..82ffbba 100644
--- a/drivers/usb/gadget/f_mtp.c
+++ b/drivers/usb/gadget/f_mtp.c
@@ -129,6 +129,40 @@
.bInterfaceProtocol = 1,
};
+static struct usb_endpoint_descriptor mtp_superspeed_in_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = USB_DIR_IN,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ .wMaxPacketSize = __constant_cpu_to_le16(1024),
+};
+
+static struct usb_ss_ep_comp_descriptor mtp_superspeed_in_comp_desc = {
+ .bLength = sizeof mtp_superspeed_in_comp_desc,
+ .bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
+
+ /* the following 2 values can be tweaked if necessary */
+ /* .bMaxBurst = 0, */
+ /* .bmAttributes = 0, */
+};
+
+static struct usb_endpoint_descriptor mtp_superspeed_out_desc = {
+ .bLength = USB_DT_ENDPOINT_SIZE,
+ .bDescriptorType = USB_DT_ENDPOINT,
+ .bEndpointAddress = USB_DIR_OUT,
+ .bmAttributes = USB_ENDPOINT_XFER_BULK,
+ .wMaxPacketSize = __constant_cpu_to_le16(1024),
+};
+
+static struct usb_ss_ep_comp_descriptor mtp_superspeed_out_comp_desc = {
+ .bLength = sizeof mtp_superspeed_out_comp_desc,
+ .bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
+
+ /* the following 2 values can be tweaked if necessary */
+ /* .bMaxBurst = 0, */
+ /* .bmAttributes = 0, */
+};
+
static struct usb_endpoint_descriptor mtp_highspeed_in_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
.bDescriptorType = USB_DT_ENDPOINT,
@@ -168,6 +202,16 @@
.bInterval = 6,
};
+static struct usb_ss_ep_comp_descriptor mtp_superspeed_intr_comp_desc = {
+ .bLength = sizeof mtp_superspeed_intr_comp_desc,
+ .bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
+
+ /* the following 3 values can be tweaked if necessary */
+ /* .bMaxBurst = 0, */
+ /* .bmAttributes = 0, */
+ .wBytesPerInterval = cpu_to_le16(INTR_BUFFER_SIZE),
+};
+
static struct usb_descriptor_header *fs_mtp_descs[] = {
(struct usb_descriptor_header *) &mtp_interface_desc,
(struct usb_descriptor_header *) &mtp_fullspeed_in_desc,
@@ -184,6 +228,17 @@
NULL,
};
+static struct usb_descriptor_header *ss_mtp_descs[] = {
+ (struct usb_descriptor_header *) &mtp_interface_desc,
+ (struct usb_descriptor_header *) &mtp_superspeed_in_desc,
+ (struct usb_descriptor_header *) &mtp_superspeed_in_comp_desc,
+ (struct usb_descriptor_header *) &mtp_superspeed_out_desc,
+ (struct usb_descriptor_header *) &mtp_superspeed_out_comp_desc,
+ (struct usb_descriptor_header *) &mtp_intr_desc,
+ (struct usb_descriptor_header *) &mtp_superspeed_intr_comp_desc,
+ NULL,
+};
+
static struct usb_descriptor_header *fs_ptp_descs[] = {
(struct usb_descriptor_header *) &ptp_interface_desc,
(struct usb_descriptor_header *) &mtp_fullspeed_in_desc,
@@ -200,6 +255,17 @@
NULL,
};
+static struct usb_descriptor_header *ss_ptp_descs[] = {
+ (struct usb_descriptor_header *) &ptp_interface_desc,
+ (struct usb_descriptor_header *) &mtp_superspeed_in_desc,
+ (struct usb_descriptor_header *) &mtp_superspeed_in_comp_desc,
+ (struct usb_descriptor_header *) &mtp_superspeed_out_desc,
+ (struct usb_descriptor_header *) &mtp_superspeed_out_comp_desc,
+ (struct usb_descriptor_header *) &mtp_intr_desc,
+ (struct usb_descriptor_header *) &mtp_superspeed_intr_comp_desc,
+ NULL,
+};
+
static struct usb_string mtp_string_defs[] = {
/* Naming interface "MTP" so libmtp will recognize us */
[INTERFACE_STRING_INDEX].s = "MTP",
@@ -1126,6 +1192,14 @@
mtp_fullspeed_out_desc.bEndpointAddress;
}
+ /* support super speed hardware */
+ if (gadget_is_superspeed(c->cdev->gadget)) {
+ mtp_superspeed_in_desc.bEndpointAddress =
+ mtp_fullspeed_in_desc.bEndpointAddress;
+ mtp_superspeed_out_desc.bEndpointAddress =
+ mtp_fullspeed_out_desc.bEndpointAddress;
+ }
+
DBG(cdev, "%s speed %s: IN/%s, OUT/%s\n",
gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
f->name, dev->ep_in->name, dev->ep_out->name);
@@ -1239,9 +1313,13 @@
if (ptp_config) {
dev->function.descriptors = fs_ptp_descs;
dev->function.hs_descriptors = hs_ptp_descs;
+ if (gadget_is_superspeed(c->cdev->gadget))
+ dev->function.ss_descriptors = ss_ptp_descs;
} else {
dev->function.descriptors = fs_mtp_descs;
dev->function.hs_descriptors = hs_mtp_descs;
+ if (gadget_is_superspeed(c->cdev->gadget))
+ dev->function.ss_descriptors = ss_mtp_descs;
}
dev->function.bind = mtp_function_bind;
dev->function.unbind = mtp_function_unbind;