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usb: musb: gadget: add musb_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.

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 14:11:15 +02:00 committed by Felipe Balbi
parent 8cc67b7bff
commit 26b8aa458c
2 changed files with 34 additions and 23 deletions
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23
drivers/usb/gadget/epautoconf.c
View File

@ -83,29 +83,6 @@ struct usb_ep *usb_ep_autoconfig_ss(
goto found_ep;
}
/* First, apply chip-specific "best usage" knowledge.
* This might make a good usb_gadget_ops hook ...
*/
#ifdef CONFIG_BLACKFIN
if (gadget_is_musbhdrc(gadget)) {
if ((USB_ENDPOINT_XFER_BULK == type) ||
(USB_ENDPOINT_XFER_ISOC == type)) {
if (USB_DIR_IN & desc->bEndpointAddress)
ep = gadget_find_ep_by_name(gadget, "ep5in");
else
ep = gadget_find_ep_by_name(gadget, "ep6out");
} else if (USB_ENDPOINT_XFER_INT == type) {
if (USB_DIR_IN & desc->bEndpointAddress)
ep = gadget_find_ep_by_name(gadget, "ep1in");
else
ep = gadget_find_ep_by_name(gadget, "ep2out");
} else
ep = NULL;
if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
goto found_ep;
}
#endif
/* Second, look at endpoints until an unclaimed one looks usable */
list_for_each_entry (ep, &gadget->ep_list, ep_list) {
if (usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))

34
drivers/usb/musb/musb_gadget.c
View File

@ -1684,6 +1684,39 @@ static int musb_gadget_pullup(struct usb_gadget *gadget, int is_on)
return 0;
}
#ifdef CONFIG_BLACKFIN
static struct usb_ep *musb_match_ep(struct usb_gadget *g,
struct usb_endpoint_descriptor *desc,
struct usb_ss_ep_comp_descriptor *ep_comp)
{
struct usb_ep *ep = NULL;
switch (usb_endpoint_type(desc)) {
case USB_ENDPOINT_XFER_ISOC:
case USB_ENDPOINT_XFER_BULK:
if (usb_endpoint_dir_in(desc))
ep = gadget_find_ep_by_name(g, "ep5in");
else
ep = gadget_find_ep_by_name(g, "ep6out");
break;
case USB_ENDPOINT_XFER_INT:
if (usb_endpoint_dir_in(desc))
ep = gadget_find_ep_by_name(g, "ep1in");
else
ep = gadget_find_ep_by_name(g, "ep2out");
break;
default:
}
if (ep && usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
return ep;
return NULL;
}
#else
#define musb_match_ep NULL
#endif
static int musb_gadget_start(struct usb_gadget *g,
struct usb_gadget_driver *driver);
static int musb_gadget_stop(struct usb_gadget *g);
@ -1697,6 +1730,7 @@ static const struct usb_gadget_ops musb_gadget_operations = {
.pullup = musb_gadget_pullup,
.udc_start = musb_gadget_start,
.udc_stop = musb_gadget_stop,
.match_ep = musb_match_ep,
};
/* ----------------------------------------------------------------------- */