[PATCH V2 12/17] usb: fastboot: add super speed support

[peng.fan at nxp.com]

From: Li Jun <jun.li at nxp.com>

Add super speed EP config.

Reviewed-by: Ye Li <ye.li at nxp.com>
Reviewed-by: Peter Chen <peter.chen at nxp.com>
Tested-by: faqiang.zhu <faqiang.zhu at nxp.com>
Signed-off-by: Li Jun <jun.li at nxp.com>
Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 drivers/usb/gadget/f_fastboot.c | 47 ++++++++++++++++++++++++++++++---
 1 file changed, 44 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c
index e330456390..c2abdd66a8 100644
--- a/drivers/usb/gadget/f_fastboot.c
+++ b/drivers/usb/gadget/f_fastboot.c
@@ -128,10 +128,45 @@ static struct usb_descriptor_header *fb_hs_function[] = {
 	NULL,
 };
 
+/* Super speed */
+static struct usb_endpoint_descriptor ss_ep_in = {
+	.bLength		= USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType	= USB_DT_ENDPOINT,
+	.bEndpointAddress	= USB_DIR_IN,
+	.bmAttributes		= USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize		= cpu_to_le16(1024),
+};
+
+static struct usb_endpoint_descriptor ss_ep_out = {
+	.bLength		= USB_DT_ENDPOINT_SIZE,
+	.bDescriptorType	= USB_DT_ENDPOINT,
+	.bEndpointAddress	= USB_DIR_OUT,
+	.bmAttributes		= USB_ENDPOINT_XFER_BULK,
+	.wMaxPacketSize		= cpu_to_le16(1024),
+};
+
+static struct usb_ss_ep_comp_descriptor fb_ss_bulk_comp_desc = {
+	.bLength =		sizeof(fb_ss_bulk_comp_desc),
+	.bDescriptorType =	USB_DT_SS_ENDPOINT_COMP,
+};
+
+static struct usb_descriptor_header *fb_ss_function[] = {
+	(struct usb_descriptor_header *)&interface_desc,
+	(struct usb_descriptor_header *)&ss_ep_in,
+	(struct usb_descriptor_header *)&fb_ss_bulk_comp_desc,
+	(struct usb_descriptor_header *)&ss_ep_out,
+	(struct usb_descriptor_header *)&fb_ss_bulk_comp_desc,
+	NULL,
+};
+
 static struct usb_endpoint_descriptor *
 fb_ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *fs,
-	    struct usb_endpoint_descriptor *hs)
+	    struct usb_endpoint_descriptor *hs,
+	    struct usb_endpoint_descriptor *ss)
 {
+	if (gadget_is_superspeed(g) && g->speed >= USB_SPEED_SUPER)
+		return ss;
+
 	if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
 		return hs;
 	return fs;
@@ -219,6 +254,12 @@ static int fastboot_bind(struct usb_configuration *c, struct usb_function *f)
 		f->hs_descriptors = fb_hs_function;
 	}
 
+	if (gadget_is_superspeed(gadget)) {
+		ss_ep_in.bEndpointAddress = fs_ep_in.bEndpointAddress;
+		ss_ep_out.bEndpointAddress = fs_ep_out.bEndpointAddress;
+		f->ss_descriptors = fb_ss_function;
+	}
+
 	s = env_get("serial#");
 	if (s)
 		g_dnl_set_serialnumber((char *)s);
@@ -283,7 +324,7 @@ static int fastboot_set_alt(struct usb_function *f,
 	debug("%s: func: %s intf: %d alt: %d\n",
 	      __func__, f->name, interface, alt);
 
-	d = fb_ep_desc(gadget, &fs_ep_out, &hs_ep_out);
+	d = fb_ep_desc(gadget, &fs_ep_out, &hs_ep_out, &ss_ep_out);
 	ret = usb_ep_enable(f_fb->out_ep, d);
 	if (ret) {
 		puts("failed to enable out ep\n");
@@ -298,7 +339,7 @@ static int fastboot_set_alt(struct usb_function *f,
 	}
 	f_fb->out_req->complete = rx_handler_command;
 
-	d = fb_ep_desc(gadget, &fs_ep_in, &hs_ep_in);
+	d = fb_ep_desc(gadget, &fs_ep_in, &hs_ep_in, &ss_ep_in);
 	ret = usb_ep_enable(f_fb->in_ep, d);
 	if (ret) {
 		puts("failed to enable in ep\n");
-- 
2.28.0