diff options
Diffstat (limited to 'drivers/usb/gadget/f_ecm.c')
| -rw-r--r-- | drivers/usb/gadget/f_ecm.c | 100 |
1 files changed, 98 insertions, 2 deletions
diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c index ddedbc83..3691a0c 100644 --- a/drivers/usb/gadget/f_ecm.c +++ b/drivers/usb/gadget/f_ecm.c @@ -77,10 +77,12 @@ static inline struct f_ecm *func_to_ecm(struct usb_function *f) /* peak (theoretical) bulk transfer rate in bits-per-second */ static inline unsigned ecm_bitrate(struct usb_gadget *g) { - if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH) + if (gadget_is_superspeed(g) && g->speed == USB_SPEED_SUPER) + return 13 * 1024 * 8 * 1000 * 8; + else if (gadget_is_dualspeed(g) && g->speed == USB_SPEED_HIGH) return 13 * 512 * 8 * 1000 * 8; else - return 19 * 64 * 1 * 1000 * 8; + return 19 * 64 * 1 * 1000 * 8; } /*-------------------------------------------------------------------------*/ @@ -210,8 +212,10 @@ static struct usb_descriptor_header *ecm_fs_function[] = { (struct usb_descriptor_header *) &ecm_header_desc, (struct usb_descriptor_header *) &ecm_union_desc, (struct usb_descriptor_header *) &ecm_desc, + /* NOTE: status endpoint might need to be removed */ (struct usb_descriptor_header *) &fs_ecm_notify_desc, + /* data interface, altsettings 0 and 1 */ (struct usb_descriptor_header *) &ecm_data_nop_intf, (struct usb_descriptor_header *) &ecm_data_intf, @@ -231,6 +235,7 @@ static struct usb_endpoint_descriptor hs_ecm_notify_desc = { .wMaxPacketSize = cpu_to_le16(ECM_STATUS_BYTECOUNT), .bInterval = LOG2_STATUS_INTERVAL_MSEC + 4, }; + static struct usb_endpoint_descriptor hs_ecm_in_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -255,8 +260,10 @@ static struct usb_descriptor_header *ecm_hs_function[] = { (struct usb_descriptor_header *) &ecm_header_desc, (struct usb_descriptor_header *) &ecm_union_desc, (struct usb_descriptor_header *) &ecm_desc, + /* NOTE: status endpoint might need to be removed */ (struct usb_descriptor_header *) &hs_ecm_notify_desc, + /* data interface, altsettings 0 and 1 */ (struct usb_descriptor_header *) &ecm_data_nop_intf, (struct usb_descriptor_header *) &ecm_data_intf, @@ -265,6 +272,76 @@ static struct usb_descriptor_header *ecm_hs_function[] = { NULL, }; +/* super speed support: */ + +static struct usb_endpoint_descriptor ss_ecm_notify_desc = { + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_INT, + .wMaxPacketSize = cpu_to_le16(ECM_STATUS_BYTECOUNT), + .bInterval = LOG2_STATUS_INTERVAL_MSEC + 4, +}; + +static struct usb_ss_ep_comp_descriptor ss_ecm_intr_comp_desc = { + .bLength = sizeof ss_ecm_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(ECM_STATUS_BYTECOUNT), +}; + +static struct usb_endpoint_descriptor ss_ecm_in_desc = { + .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_ecm_out_desc = { + .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 ss_ecm_bulk_comp_desc = { + .bLength = sizeof ss_ecm_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 *ecm_ss_function[] = { + /* CDC ECM control descriptors */ + (struct usb_descriptor_header *) &ecm_control_intf, + (struct usb_descriptor_header *) &ecm_header_desc, + (struct usb_descriptor_header *) &ecm_union_desc, + (struct usb_descriptor_header *) &ecm_desc, + + /* NOTE: status endpoint might need to be removed */ + (struct usb_descriptor_header *) &ss_ecm_notify_desc, + (struct usb_descriptor_header *) &ss_ecm_intr_comp_desc, + + /* data interface, altsettings 0 and 1 */ + (struct usb_descriptor_header *) &ecm_data_nop_intf, + (struct usb_descriptor_header *) &ecm_data_intf, + (struct usb_descriptor_header *) &ss_ecm_in_desc, + (struct usb_descriptor_header *) &ss_ecm_bulk_comp_desc, + (struct usb_descriptor_header *) &ss_ecm_out_desc, + (struct usb_descriptor_header *) &ss_ecm_bulk_comp_desc, + NULL, +}; + /* string descriptors: */ static struct usb_string ecm_string_defs[] = { @@ -679,6 +756,20 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f) goto fail; } + if (gadget_is_superspeed(c->cdev->gadget)) { + ss_ecm_in_desc.bEndpointAddress = + fs_ecm_in_desc.bEndpointAddress; + ss_ecm_out_desc.bEndpointAddress = + fs_ecm_out_desc.bEndpointAddress; + ss_ecm_notify_desc.bEndpointAddress = + fs_ecm_notify_desc.bEndpointAddress; + + /* copy descriptors, and track endpoint copies */ + f->ss_descriptors = usb_copy_descriptors(ecm_ss_function); + if (!f->ss_descriptors) + goto fail; + } + /* NOTE: all that is done without knowing or caring about * the network link ... which is unavailable to this code * until we're activated via set_alt(). @@ -688,6 +779,7 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f) ecm->port.close = ecm_close; DBG(cdev, "CDC Ethernet: %s speed IN/%s OUT/%s NOTIFY/%s\n", + gadget_is_superspeed(c->cdev->gadget) ? "super" : gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full", ecm->port.in_ep->name, ecm->port.out_ep->name, ecm->notify->name); @@ -696,6 +788,8 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f) fail: if (f->descriptors) usb_free_descriptors(f->descriptors); + if (f->hs_descriptors) + usb_free_descriptors(f->hs_descriptors); if (ecm->notify_req) { kfree(ecm->notify_req->buf); @@ -722,6 +816,8 @@ ecm_unbind(struct usb_configuration *c, struct usb_function *f) DBG(c->cdev, "ecm unbind\n"); + 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); |
