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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2015-03-03 17:32:11 +0100 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2015-04-14 05:48:12 +0200 |
| commit | 16bece51c58a7758309918daecdc0c4bb45e271b (patch) | |
| tree | b1bf48a2bf5ee9d636dd16076e583ab83be5a0be | |
| parent | 5dc4538bf3fea0baf4ca2e4191e0e62991fbd779 (diff) | |
| download | u-boot-imx-16bece51c58a7758309918daecdc0c4bb45e271b.zip u-boot-imx-16bece51c58a7758309918daecdc0c4bb45e271b.tar.gz u-boot-imx-16bece51c58a7758309918daecdc0c4bb45e271b.tar.bz2 | |
usb: dwc3: gadget: add common endpoint configuration for dwc3 udc driver
This patch adds code to select standard, commonly used usb endpoint
configuration (ep1in-bulk, ep2out-bulk, ep3in-int) to dwc3 driver. This
ensures compatibility with old userspace and windows drivers, which
expects hardcoded endpoint numbers.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
| -rw-r--r-- | drivers/usb/gadget/epautoconf.c | 24 | ||||
| -rw-r--r-- | drivers/usb/gadget/gadget_chips.h | 8 |
2 files changed, 31 insertions, 1 deletions
diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c index 0df4b2a..6ddbe83 100644 --- a/drivers/usb/gadget/epautoconf.c +++ b/drivers/usb/gadget/epautoconf.c @@ -220,7 +220,7 @@ struct usb_ep *usb_ep_autoconfig( struct usb_endpoint_descriptor *desc ) { - struct usb_ep *ep; + struct usb_ep *ep = NULL; u8 type; type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; @@ -261,6 +261,28 @@ struct usb_ep *usb_ep_autoconfig( ep = find_ep(gadget, "ep1-bulk"); if (ep && ep_matches(gadget, ep, desc)) return ep; + } else if (gadget_is_dwc3(gadget)) { + const char *name = NULL; + /* + * First try standard, common configuration: ep1in-bulk, + * ep2out-bulk, ep3in-int to match other udc drivers to avoid + * confusion in already deployed software (endpoint numbers + * hardcoded in userspace software/drivers) + */ + if ((desc->bEndpointAddress & USB_DIR_IN) && + type == USB_ENDPOINT_XFER_BULK) + name = "ep1in"; + else if ((desc->bEndpointAddress & USB_DIR_IN) == 0 && + type == USB_ENDPOINT_XFER_BULK) + name = "ep2out"; + else if ((desc->bEndpointAddress & USB_DIR_IN) && + type == USB_ENDPOINT_XFER_INT) + name = "ep3in"; + + if (name) + ep = find_ep(gadget, name); + if (ep && ep_matches(gadget, ep, desc)) + return ep; } /* Second, look at endpoints until an unclaimed one looks usable */ diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h index cc94771..c859df2 100644 --- a/drivers/usb/gadget/gadget_chips.h +++ b/drivers/usb/gadget/gadget_chips.h @@ -156,6 +156,14 @@ #define gadget_is_fotg210(g) 0 #endif +#ifdef CONFIG_USB_DWC3_GADGET +#define gadget_is_dwc3(g) (!strcmp("dwc3-gadget", (g)->name)) +#else +#define gadget_is_dwc3(g) 0 +#endif + + + /* * CONFIG_USB_GADGET_SX2 * CONFIG_USB_GADGET_AU1X00 |