diff options
Diffstat (limited to 'drivers/usb/gadget/f_subset.c')
| -rw-r--r-- | drivers/usb/gadget/f_subset.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/usb/gadget/f_subset.c b/drivers/usb/gadget/f_subset.c index 93bf676..3dc5375 100644 --- a/drivers/usb/gadget/f_subset.c +++ b/drivers/usb/gadget/f_subset.c @@ -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); |