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usb: gadget: add usb_endpoint_descriptor to struct usb_ep

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Change usb_ep_enable() prototype to use endpoint
descriptor from usb_ep.

This optimization spares the FDs from saving the
endpoint chosen descriptor. This optimization is
not full though. To fully exploit this change, one
needs to update all the UDCs as well since in the
current implementation each of them saves the
endpoint descriptor in it's internal (and extended)
endpoint structure.

Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Tatyana Brokhman
2011-06-28 16:33:48 +03:00
committed by Greg Kroah-Hartman
parent 0f91349b89
commit 72c973dd2b
26 changed files with 111 additions and 117 deletions
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15
drivers/usb/gadget/f_rndis.c
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@@ -92,7 +92,6 @@ struct f_rndis {
struct rndis_ep_descs hs;
struct usb_ep *notify;
struct usb_endpoint_descriptor *notify_desc;
struct usb_request *notify_req;
atomic_t notify_count;
};
@@ -486,11 +485,11 @@ static int rndis_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
usb_ep_disable(rndis->notify);
} else {
VDBG(cdev, "init rndis ctrl %d\n", intf);
rndis->notify_desc = ep_choose(cdev->gadget,
rndis->notify->desc = ep_choose(cdev->gadget,
rndis->hs.notify,
rndis->fs.notify);
}
usb_ep_enable(rndis->notify, rndis->notify_desc);
usb_ep_enable(rndis->notify);
rndis->notify->driver_data = rndis;
} else if (intf == rndis->data_id) {
@@ -501,11 +500,11 @@ static int rndis_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
gether_disconnect(&rndis->port);
}
if (!rndis->port.in) {
if (!rndis->port.in_ep->desc) {
DBG(cdev, "init rndis\n");
rndis->port.in = ep_choose(cdev->gadget,
rndis->port.in_ep->desc = ep_choose(cdev->gadget,
rndis->hs.in, rndis->fs.in);
rndis->port.out = ep_choose(cdev->gadget,
rndis->port.out_ep->desc = ep_choose(cdev->gadget,
rndis->hs.out, rndis->fs.out);
}
@@ -738,9 +737,9 @@ fail:
/* we might as well release our claims on endpoints */
if (rndis->notify)
rndis->notify->driver_data = NULL;
if (rndis->port.out)
if (rndis->port.out_ep->desc)
rndis->port.out_ep->driver_data = NULL;
if (rndis->port.in)
if (rndis->port.in_ep->desc)
rndis->port.in_ep->driver_data = NULL;
ERROR(cdev, "%s: can't bind, err %d\n", f->name, status);