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usb: gadget: goku_udc: add goku_match_ep() function

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Add 'match_ep' callback to utilize chip-specific knowledge in endpoint matching
process. Function does the same that was done by chip-specific code inside
of epautoconf. Now this code can be removed from there to separate generic code
from platform specific logic.

[ balbi@ti.com : fix build breakage ]

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Robert Baldyga
2015-08-06 14:11:14 +02:00
committed by Felipe Balbi
parent 3e8b231818
commit 8cc67b7bff
2 changed files with 32 additions and 18 deletions
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30
drivers/usb/gadget/udc/goku_udc.c
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@@ -990,6 +990,35 @@ static int goku_get_frame(struct usb_gadget *_gadget)
return -EOPNOTSUPP;
}
static struct usb_ep *goku_match_ep(struct usb_gadget *g,
struct usb_endpoint_descriptor *desc,
struct usb_ss_ep_comp_descriptor *ep_comp)
{
struct goku_udc *dev = to_goku_udc(g);
struct usb_ep *ep;
switch (usb_endpoint_type(desc)) {
case USB_ENDPOINT_XFER_INT:
/* single buffering is enough */
ep = &dev->ep[3].ep;
if (usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
return ep;
break;
case USB_ENDPOINT_XFER_BULK:
if (usb_endpoint_dir_in(desc)) {
/* DMA may be available */
ep = &dev->ep[2].ep;
if (usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
return ep;
}
break;
default:
/* nothing */ ;
}
return NULL;
}
static int goku_udc_start(struct usb_gadget *g,
struct usb_gadget_driver *driver);
static int goku_udc_stop(struct usb_gadget *g);
@@ -998,6 +1027,7 @@ static const struct usb_gadget_ops goku_ops = {
.get_frame = goku_get_frame,
.udc_start = goku_udc_start,
.udc_stop = goku_udc_stop,
.match_ep = goku_match_ep,
// no remote wakeup
// not selfpowered
};