usb: gadget: add SS descriptors to Ethernet gadget
Add SuperSpeed descriptors to the Network USB function drivers. This has been lightly tested using a Linux host. I was able to ssh from device to host and host to device, no obvious problems seen. Signed-off-by: Paul Zimmerman <paulz@synopsys.com> Signed-off-by: Felipe Balbi <balbi@ti.com>hifive-unleashed-5.1
Paul Zimmerman
Felipe Balbi
parent
96fe53ef54
commit
04617db7aa
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@ -401,7 +401,7 @@ static struct usb_composite_driver eth_driver = {
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.name = "g_ether",
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.dev = &device_desc,
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.strings = dev_strings,
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.max_speed = USB_SPEED_HIGH,
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.max_speed = USB_SPEED_SUPER,
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.unbind = __exit_p(eth_unbind),
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};
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@ -77,10 +77,12 @@ static inline struct f_ecm *func_to_ecm(struct usb_function *f)
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/* peak (theoretical) bulk transfer rate in bits-per-second */
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static inline unsigned ecm_bitrate(struct usb_gadget *g)
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{
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if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
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if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER)
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return 13 * 1024 * 8 * 1000 * 8;
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else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
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return 13 * 512 * 8 * 1000 * 8;
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else
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return 19 * 64 * 1 * 1000 * 8;
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return 19 * 64 * 1 * 1000 * 8;
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}
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/*-------------------------------------------------------------------------*/
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@ -210,8 +212,10 @@ static struct usb_descriptor_header *ecm_fs_function[] = {
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(struct usb_descriptor_header *) &ecm_header_desc,
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(struct usb_descriptor_header *) &ecm_union_desc,
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(struct usb_descriptor_header *) &ecm_desc,
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/* NOTE: status endpoint might need to be removed */
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(struct usb_descriptor_header *) &fs_ecm_notify_desc,
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/* data interface, altsettings 0 and 1 */
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(struct usb_descriptor_header *) &ecm_data_nop_intf,
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(struct usb_descriptor_header *) &ecm_data_intf,
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@ -231,6 +235,7 @@ static struct usb_endpoint_descriptor hs_ecm_notify_desc = {
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.wMaxPacketSize = cpu_to_le16(ECM_STATUS_BYTECOUNT),
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.bInterval = LOG2_STATUS_INTERVAL_MSEC + 4,
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};
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static struct usb_endpoint_descriptor hs_ecm_in_desc = {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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@ -255,8 +260,10 @@ static struct usb_descriptor_header *ecm_hs_function[] = {
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(struct usb_descriptor_header *) &ecm_header_desc,
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(struct usb_descriptor_header *) &ecm_union_desc,
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(struct usb_descriptor_header *) &ecm_desc,
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/* NOTE: status endpoint might need to be removed */
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(struct usb_descriptor_header *) &hs_ecm_notify_desc,
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/* data interface, altsettings 0 and 1 */
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(struct usb_descriptor_header *) &ecm_data_nop_intf,
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(struct usb_descriptor_header *) &ecm_data_intf,
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@ -265,6 +272,76 @@ static struct usb_descriptor_header *ecm_hs_function[] = {
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NULL,
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};
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/* super speed support: */
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static struct usb_endpoint_descriptor ss_ecm_notify_desc = {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = USB_DIR_IN,
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.bmAttributes = USB_ENDPOINT_XFER_INT,
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.wMaxPacketSize = cpu_to_le16(ECM_STATUS_BYTECOUNT),
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.bInterval = LOG2_STATUS_INTERVAL_MSEC + 4,
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};
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static struct usb_ss_ep_comp_descriptor ss_ecm_intr_comp_desc = {
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.bLength = sizeof ss_ecm_intr_comp_desc,
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.bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
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/* the following 3 values can be tweaked if necessary */
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/* .bMaxBurst = 0, */
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/* .bmAttributes = 0, */
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.wBytesPerInterval = cpu_to_le16(ECM_STATUS_BYTECOUNT),
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};
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static struct usb_endpoint_descriptor ss_ecm_in_desc = {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = USB_DIR_IN,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = cpu_to_le16(1024),
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};
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static struct usb_endpoint_descriptor ss_ecm_out_desc = {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = USB_DIR_OUT,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = cpu_to_le16(1024),
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};
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static struct usb_ss_ep_comp_descriptor ss_ecm_bulk_comp_desc = {
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.bLength = sizeof ss_ecm_bulk_comp_desc,
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.bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
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/* the following 2 values can be tweaked if necessary */
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/* .bMaxBurst = 0, */
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/* .bmAttributes = 0, */
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};
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static struct usb_descriptor_header *ecm_ss_function[] = {
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/* CDC ECM control descriptors */
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(struct usb_descriptor_header *) &ecm_control_intf,
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(struct usb_descriptor_header *) &ecm_header_desc,
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(struct usb_descriptor_header *) &ecm_union_desc,
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(struct usb_descriptor_header *) &ecm_desc,
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/* NOTE: status endpoint might need to be removed */
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(struct usb_descriptor_header *) &ss_ecm_notify_desc,
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(struct usb_descriptor_header *) &ss_ecm_intr_comp_desc,
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/* data interface, altsettings 0 and 1 */
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(struct usb_descriptor_header *) &ecm_data_nop_intf,
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(struct usb_descriptor_header *) &ecm_data_intf,
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(struct usb_descriptor_header *) &ss_ecm_in_desc,
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(struct usb_descriptor_header *) &ss_ecm_bulk_comp_desc,
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(struct usb_descriptor_header *) &ss_ecm_out_desc,
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(struct usb_descriptor_header *) &ss_ecm_bulk_comp_desc,
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NULL,
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};
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/* string descriptors: */
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static struct usb_string ecm_string_defs[] = {
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@ -679,6 +756,20 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f)
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goto fail;
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}
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if (gadget_is_superspeed(c->cdev->gadget)) {
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ss_ecm_in_desc.bEndpointAddress =
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fs_ecm_in_desc.bEndpointAddress;
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ss_ecm_out_desc.bEndpointAddress =
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fs_ecm_out_desc.bEndpointAddress;
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ss_ecm_notify_desc.bEndpointAddress =
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fs_ecm_notify_desc.bEndpointAddress;
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/* copy descriptors, and track endpoint copies */
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f->ss_descriptors = usb_copy_descriptors(ecm_ss_function);
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if (!f->ss_descriptors)
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goto fail;
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}
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/* NOTE: all that is done without knowing or caring about
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* the network link ... which is unavailable to this code
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* until we're activated via set_alt().
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@ -688,6 +779,7 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f)
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ecm->port.close = ecm_close;
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DBG(cdev, "CDC Ethernet: %s speed IN/%s OUT/%s NOTIFY/%s\n",
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gadget_is_superspeed(c->cdev->gadget) ? "super" :
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gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
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ecm->port.in_ep->name, ecm->port.out_ep->name,
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ecm->notify->name);
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@ -696,6 +788,8 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f)
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fail:
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if (f->descriptors)
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usb_free_descriptors(f->descriptors);
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if (f->hs_descriptors)
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usb_free_descriptors(f->hs_descriptors);
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if (ecm->notify_req) {
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kfree(ecm->notify_req->buf);
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@ -722,6 +816,8 @@ ecm_unbind(struct usb_configuration *c, struct usb_function *f)
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DBG(c->cdev, "ecm unbind\n");
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if (gadget_is_superspeed(c->cdev->gadget))
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usb_free_descriptors(f->ss_descriptors);
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if (gadget_is_dualspeed(c->cdev->gadget))
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usb_free_descriptors(f->hs_descriptors);
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usb_free_descriptors(f->descriptors);
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@ -115,6 +115,45 @@ static struct usb_descriptor_header *eem_hs_function[] __initdata = {
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NULL,
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};
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/* super speed support: */
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static struct usb_endpoint_descriptor eem_ss_in_desc __initdata = {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = USB_DIR_IN,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = cpu_to_le16(1024),
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};
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static struct usb_endpoint_descriptor eem_ss_out_desc __initdata = {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = USB_DIR_OUT,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = cpu_to_le16(1024),
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};
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static struct usb_ss_ep_comp_descriptor eem_ss_bulk_comp_desc __initdata = {
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.bLength = sizeof eem_ss_bulk_comp_desc,
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.bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
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/* the following 2 values can be tweaked if necessary */
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/* .bMaxBurst = 0, */
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/* .bmAttributes = 0, */
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};
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static struct usb_descriptor_header *eem_ss_function[] __initdata = {
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/* CDC EEM control descriptors */
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(struct usb_descriptor_header *) &eem_intf,
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(struct usb_descriptor_header *) &eem_ss_in_desc,
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(struct usb_descriptor_header *) &eem_ss_bulk_comp_desc,
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(struct usb_descriptor_header *) &eem_ss_out_desc,
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(struct usb_descriptor_header *) &eem_ss_bulk_comp_desc,
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NULL,
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};
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/* string descriptors: */
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static struct usb_string eem_string_defs[] = {
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@ -265,7 +304,20 @@ eem_bind(struct usb_configuration *c, struct usb_function *f)
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goto fail;
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}
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if (gadget_is_superspeed(c->cdev->gadget)) {
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eem_ss_in_desc.bEndpointAddress =
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eem_fs_in_desc.bEndpointAddress;
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eem_ss_out_desc.bEndpointAddress =
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eem_fs_out_desc.bEndpointAddress;
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/* copy descriptors, and track endpoint copies */
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f->ss_descriptors = usb_copy_descriptors(eem_ss_function);
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if (!f->ss_descriptors)
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goto fail;
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}
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DBG(cdev, "CDC Ethernet (EEM): %s speed IN/%s OUT/%s\n",
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gadget_is_superspeed(c->cdev->gadget) ? "super" :
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gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
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eem->port.in_ep->name, eem->port.out_ep->name);
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return 0;
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@ -273,6 +325,8 @@ eem_bind(struct usb_configuration *c, struct usb_function *f)
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fail:
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if (f->descriptors)
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usb_free_descriptors(f->descriptors);
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if (f->hs_descriptors)
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usb_free_descriptors(f->hs_descriptors);
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/* we might as well release our claims on endpoints */
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if (eem->port.out_ep->desc)
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@ -292,6 +346,8 @@ eem_unbind(struct usb_configuration *c, struct usb_function *f)
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DBG(c->cdev, "eem unbind\n");
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if (gadget_is_superspeed(c->cdev->gadget))
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usb_free_descriptors(f->ss_descriptors);
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if (gadget_is_dualspeed(c->cdev->gadget))
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usb_free_descriptors(f->hs_descriptors);
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usb_free_descriptors(f->descriptors);
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@ -95,10 +95,12 @@ static inline struct f_rndis *func_to_rndis(struct usb_function *f)
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/* peak (theoretical) bulk transfer rate in bits-per-second */
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static unsigned int bitrate(struct usb_gadget *g)
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{
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if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
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if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER)
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return 13 * 1024 * 8 * 1000 * 8;
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else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH)
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return 13 * 512 * 8 * 1000 * 8;
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else
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return 19 * 64 * 1 * 1000 * 8;
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return 19 * 64 * 1 * 1000 * 8;
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}
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/*-------------------------------------------------------------------------*/
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@ -216,6 +218,7 @@ static struct usb_endpoint_descriptor fs_out_desc = {
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static struct usb_descriptor_header *eth_fs_function[] = {
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(struct usb_descriptor_header *) &rndis_iad_descriptor,
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/* control interface matches ACM, not Ethernet */
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(struct usb_descriptor_header *) &rndis_control_intf,
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(struct usb_descriptor_header *) &header_desc,
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@ -223,6 +226,7 @@ static struct usb_descriptor_header *eth_fs_function[] = {
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(struct usb_descriptor_header *) &rndis_acm_descriptor,
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(struct usb_descriptor_header *) &rndis_union_desc,
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(struct usb_descriptor_header *) &fs_notify_desc,
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/* data interface has no altsetting */
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(struct usb_descriptor_header *) &rndis_data_intf,
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(struct usb_descriptor_header *) &fs_in_desc,
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@ -241,6 +245,7 @@ static struct usb_endpoint_descriptor hs_notify_desc = {
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.wMaxPacketSize = cpu_to_le16(STATUS_BYTECOUNT),
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.bInterval = LOG2_STATUS_INTERVAL_MSEC + 4,
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};
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static struct usb_endpoint_descriptor hs_in_desc = {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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@ -261,6 +266,7 @@ static struct usb_endpoint_descriptor hs_out_desc = {
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static struct usb_descriptor_header *eth_hs_function[] = {
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(struct usb_descriptor_header *) &rndis_iad_descriptor,
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/* control interface matches ACM, not Ethernet */
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(struct usb_descriptor_header *) &rndis_control_intf,
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(struct usb_descriptor_header *) &header_desc,
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@ -268,6 +274,7 @@ static struct usb_descriptor_header *eth_hs_function[] = {
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(struct usb_descriptor_header *) &rndis_acm_descriptor,
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(struct usb_descriptor_header *) &rndis_union_desc,
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(struct usb_descriptor_header *) &hs_notify_desc,
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/* data interface has no altsetting */
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(struct usb_descriptor_header *) &rndis_data_intf,
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(struct usb_descriptor_header *) &hs_in_desc,
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@ -275,6 +282,76 @@ static struct usb_descriptor_header *eth_hs_function[] = {
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NULL,
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};
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/* super speed support: */
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static struct usb_endpoint_descriptor ss_notify_desc = {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = USB_DIR_IN,
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.bmAttributes = USB_ENDPOINT_XFER_INT,
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.wMaxPacketSize = cpu_to_le16(STATUS_BYTECOUNT),
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.bInterval = LOG2_STATUS_INTERVAL_MSEC + 4,
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};
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static struct usb_ss_ep_comp_descriptor ss_intr_comp_desc = {
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.bLength = sizeof ss_intr_comp_desc,
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.bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
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/* the following 3 values can be tweaked if necessary */
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/* .bMaxBurst = 0, */
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/* .bmAttributes = 0, */
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.wBytesPerInterval = cpu_to_le16(STATUS_BYTECOUNT),
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};
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static struct usb_endpoint_descriptor ss_in_desc = {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = USB_DIR_IN,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = cpu_to_le16(1024),
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};
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static struct usb_endpoint_descriptor ss_out_desc = {
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.bLength = USB_DT_ENDPOINT_SIZE,
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.bDescriptorType = USB_DT_ENDPOINT,
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.bEndpointAddress = USB_DIR_OUT,
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.bmAttributes = USB_ENDPOINT_XFER_BULK,
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.wMaxPacketSize = cpu_to_le16(1024),
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};
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static struct usb_ss_ep_comp_descriptor ss_bulk_comp_desc = {
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.bLength = sizeof ss_bulk_comp_desc,
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.bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
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/* the following 2 values can be tweaked if necessary */
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/* .bMaxBurst = 0, */
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/* .bmAttributes = 0, */
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};
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static struct usb_descriptor_header *eth_ss_function[] = {
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(struct usb_descriptor_header *) &rndis_iad_descriptor,
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/* control interface matches ACM, not Ethernet */
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(struct usb_descriptor_header *) &rndis_control_intf,
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(struct usb_descriptor_header *) &header_desc,
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(struct usb_descriptor_header *) &call_mgmt_descriptor,
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(struct usb_descriptor_header *) &rndis_acm_descriptor,
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(struct usb_descriptor_header *) &rndis_union_desc,
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(struct usb_descriptor_header *) &ss_notify_desc,
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(struct usb_descriptor_header *) &ss_intr_comp_desc,
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/* data interface has no altsetting */
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(struct usb_descriptor_header *) &rndis_data_intf,
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(struct usb_descriptor_header *) &ss_in_desc,
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(struct usb_descriptor_header *) &ss_bulk_comp_desc,
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(struct usb_descriptor_header *) &ss_out_desc,
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(struct usb_descriptor_header *) &ss_bulk_comp_desc,
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NULL,
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};
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/* string descriptors: */
|
||||
|
||||
static struct usb_string rndis_string_defs[] = {
|
||||
|
|
@ -670,11 +747,24 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f)
|
|||
|
||||
/* copy descriptors, and track endpoint copies */
|
||||
f->hs_descriptors = usb_copy_descriptors(eth_hs_function);
|
||||
|
||||
if (!f->hs_descriptors)
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (gadget_is_superspeed(c->cdev->gadget)) {
|
||||
ss_in_desc.bEndpointAddress =
|
||||
fs_in_desc.bEndpointAddress;
|
||||
ss_out_desc.bEndpointAddress =
|
||||
fs_out_desc.bEndpointAddress;
|
||||
ss_notify_desc.bEndpointAddress =
|
||||
fs_notify_desc.bEndpointAddress;
|
||||
|
||||
/* copy descriptors, and track endpoint copies */
|
||||
f->ss_descriptors = usb_copy_descriptors(eth_ss_function);
|
||||
if (!f->ss_descriptors)
|
||||
goto fail;
|
||||
}
|
||||
|
||||
rndis->port.open = rndis_open;
|
||||
rndis->port.close = rndis_close;
|
||||
|
||||
|
|
@ -699,12 +789,15 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f)
|
|||
*/
|
||||
|
||||
DBG(cdev, "RNDIS: %s speed IN/%s OUT/%s NOTIFY/%s\n",
|
||||
gadget_is_superspeed(c->cdev->gadget) ? "super" :
|
||||
gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
|
||||
rndis->port.in_ep->name, rndis->port.out_ep->name,
|
||||
rndis->notify->name);
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
if (gadget_is_superspeed(c->cdev->gadget) && f->ss_descriptors)
|
||||
usb_free_descriptors(f->ss_descriptors);
|
||||
if (gadget_is_dualspeed(c->cdev->gadget) && f->hs_descriptors)
|
||||
usb_free_descriptors(f->hs_descriptors);
|
||||
if (f->descriptors)
|
||||
|
|
@ -736,6 +829,8 @@ rndis_unbind(struct usb_configuration *c, struct usb_function *f)
|
|||
rndis_deregister(rndis->config);
|
||||
rndis_exit();
|
||||
|
||||
if (gadget_is_superspeed(c->cdev->gadget))
|
||||
usb_free_descriptors(f->ss_descriptors);
|
||||
if (gadget_is_dualspeed(c->cdev->gadget))
|
||||
usb_free_descriptors(f->hs_descriptors);
|
||||
usb_free_descriptors(f->descriptors);
|
||||
|
|
|
|||
|
|
@ -201,6 +201,46 @@ static struct usb_descriptor_header *hs_eth_function[] __initdata = {
|
|||
NULL,
|
||||
};
|
||||
|
||||
/* super speed support: */
|
||||
|
||||
static struct usb_endpoint_descriptor ss_subset_in_desc __initdata = {
|
||||
.bLength = USB_DT_ENDPOINT_SIZE,
|
||||
.bDescriptorType = USB_DT_ENDPOINT,
|
||||
|
||||
.bmAttributes = USB_ENDPOINT_XFER_BULK,
|
||||
.wMaxPacketSize = cpu_to_le16(1024),
|
||||
};
|
||||
|
||||
static struct usb_endpoint_descriptor ss_subset_out_desc __initdata = {
|
||||
.bLength = USB_DT_ENDPOINT_SIZE,
|
||||
.bDescriptorType = USB_DT_ENDPOINT,
|
||||
|
||||
.bmAttributes = USB_ENDPOINT_XFER_BULK,
|
||||
.wMaxPacketSize = cpu_to_le16(1024),
|
||||
};
|
||||
|
||||
static struct usb_ss_ep_comp_descriptor ss_subset_bulk_comp_desc __initdata = {
|
||||
.bLength = sizeof ss_subset_bulk_comp_desc,
|
||||
.bDescriptorType = USB_DT_SS_ENDPOINT_COMP,
|
||||
|
||||
/* the following 2 values can be tweaked if necessary */
|
||||
/* .bMaxBurst = 0, */
|
||||
/* .bmAttributes = 0, */
|
||||
};
|
||||
|
||||
static struct usb_descriptor_header *ss_eth_function[] __initdata = {
|
||||
(struct usb_descriptor_header *) &subset_data_intf,
|
||||
(struct usb_descriptor_header *) &mdlm_header_desc,
|
||||
(struct usb_descriptor_header *) &mdlm_desc,
|
||||
(struct usb_descriptor_header *) &mdlm_detail_desc,
|
||||
(struct usb_descriptor_header *) ðer_desc,
|
||||
(struct usb_descriptor_header *) &ss_subset_in_desc,
|
||||
(struct usb_descriptor_header *) &ss_subset_bulk_comp_desc,
|
||||
(struct usb_descriptor_header *) &ss_subset_out_desc,
|
||||
(struct usb_descriptor_header *) &ss_subset_bulk_comp_desc,
|
||||
NULL,
|
||||
};
|
||||
|
||||
/* string descriptors: */
|
||||
|
||||
static struct usb_string geth_string_defs[] = {
|
||||
|
|
@ -290,6 +330,8 @@ geth_bind(struct usb_configuration *c, struct usb_function *f)
|
|||
|
||||
/* copy descriptors, and track endpoint copies */
|
||||
f->descriptors = usb_copy_descriptors(fs_eth_function);
|
||||
if (!f->descriptors)
|
||||
goto fail;
|
||||
|
||||
/* support all relevant hardware speeds... we expect that when
|
||||
* hardware is dual speed, all bulk-capable endpoints work at
|
||||
|
|
@ -303,6 +345,20 @@ geth_bind(struct usb_configuration *c, struct usb_function *f)
|
|||
|
||||
/* copy descriptors, and track endpoint copies */
|
||||
f->hs_descriptors = usb_copy_descriptors(hs_eth_function);
|
||||
if (!f->hs_descriptors)
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (gadget_is_superspeed(c->cdev->gadget)) {
|
||||
ss_subset_in_desc.bEndpointAddress =
|
||||
fs_subset_in_desc.bEndpointAddress;
|
||||
ss_subset_out_desc.bEndpointAddress =
|
||||
fs_subset_out_desc.bEndpointAddress;
|
||||
|
||||
/* copy descriptors, and track endpoint copies */
|
||||
f->ss_descriptors = usb_copy_descriptors(ss_eth_function);
|
||||
if (!f->ss_descriptors)
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* NOTE: all that is done without knowing or caring about
|
||||
|
|
@ -311,11 +367,17 @@ geth_bind(struct usb_configuration *c, struct usb_function *f)
|
|||
*/
|
||||
|
||||
DBG(cdev, "CDC Subset: %s speed IN/%s OUT/%s\n",
|
||||
gadget_is_superspeed(c->cdev->gadget) ? "super" :
|
||||
gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full",
|
||||
geth->port.in_ep->name, geth->port.out_ep->name);
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
if (f->descriptors)
|
||||
usb_free_descriptors(f->descriptors);
|
||||
if (f->hs_descriptors)
|
||||
usb_free_descriptors(f->hs_descriptors);
|
||||
|
||||
/* we might as well release our claims on endpoints */
|
||||
if (geth->port.out_ep->desc)
|
||||
geth->port.out_ep->driver_data = NULL;
|
||||
|
|
@ -330,6 +392,8 @@ fail:
|
|||
static void
|
||||
geth_unbind(struct usb_configuration *c, struct usb_function *f)
|
||||
{
|
||||
if (gadget_is_superspeed(c->cdev->gadget))
|
||||
usb_free_descriptors(f->ss_descriptors);
|
||||
if (gadget_is_dualspeed(c->cdev->gadget))
|
||||
usb_free_descriptors(f->hs_descriptors);
|
||||
usb_free_descriptors(f->descriptors);
|
||||
|
|
|
|||
|
|
@ -97,16 +97,17 @@ struct eth_dev {
|
|||
|
||||
static unsigned qmult = 5;
|
||||
module_param(qmult, uint, S_IRUGO|S_IWUSR);
|
||||
MODULE_PARM_DESC(qmult, "queue length multiplier at high speed");
|
||||
MODULE_PARM_DESC(qmult, "queue length multiplier at high/super speed");
|
||||
|
||||
#else /* full speed (low speed doesn't do bulk) */
|
||||
#define qmult 1
|
||||
#endif
|
||||
|
||||
/* for dual-speed hardware, use deeper queues at highspeed */
|
||||
/* for dual-speed hardware, use deeper queues at high/super speed */
|
||||
static inline int qlen(struct usb_gadget *gadget)
|
||||
{
|
||||
if (gadget_is_dualspeed(gadget) && gadget->speed == USB_SPEED_HIGH)
|
||||
if (gadget_is_dualspeed(gadget) && (gadget->speed == USB_SPEED_HIGH ||
|
||||
gadget->speed == USB_SPEED_SUPER))
|
||||
return qmult * DEFAULT_QLEN;
|
||||
else
|
||||
return DEFAULT_QLEN;
|
||||
|
|
@ -598,9 +599,10 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb,
|
|||
|
||||
req->length = length;
|
||||
|
||||
/* throttle highspeed IRQ rate back slightly */
|
||||
/* throttle high/super speed IRQ rate back slightly */
|
||||
if (gadget_is_dualspeed(dev->gadget))
|
||||
req->no_interrupt = (dev->gadget->speed == USB_SPEED_HIGH)
|
||||
req->no_interrupt = (dev->gadget->speed == USB_SPEED_HIGH ||
|
||||
dev->gadget->speed == USB_SPEED_SUPER)
|
||||
? ((atomic_read(&dev->tx_qlen) % qmult) != 0)
|
||||
: 0;
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue