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usb: dwc3: gadget: cache frame number in struct dwc3_ep

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This is in preparation to simplifying prototype of
__dwc3_gadget_kick_transfer().

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Felipe Balbi 2017-09-05 14:36:13 +03:00
parent 64e0108029
commit 502a37b98a
2 changed files with 4 additions and 5 deletions
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2
drivers/usb/dwc3/core.h
View File

@ -529,6 +529,7 @@ struct dwc3_event_buffer {
* @number: endpoint number (1 - 15)
* @type: set to bmAttributes & USB_ENDPOINT_XFERTYPE_MASK
* @resource_index: Resource transfer index
* @frame_number: set to the frame number we want this transfer to start (ISOC)
* @interval: the interval on which the ISOC transfer is started
* @allocated_requests: number of requests allocated
* @queued_requests: number of requests queued for transfer
@ -581,6 +582,7 @@ struct dwc3_ep {
u8 resource_index;
u32 allocated_requests;
u32 queued_requests;
u32 frame_number;
u32 interval;
char name[20];

7
drivers/usb/dwc3/gadget.c
View File

@ -1258,8 +1258,6 @@ static int __dwc3_gadget_get_frame(struct dwc3 *dwc)
static void __dwc3_gadget_start_isoc(struct dwc3 *dwc,
struct dwc3_ep *dep, u32 cur_uf)
{
u32 uf;
if (list_empty(&dep->pending_list)) {
dev_info(dwc->dev, "%s: ran out of requests\n",
dep->name);
@ -1271,9 +1269,8 @@ static void __dwc3_gadget_start_isoc(struct dwc3 *dwc,
* Schedule the first trb for one interval in the future or at
* least 4 microframes.
*/
uf = cur_uf + max_t(u32, 4, dep->interval);
__dwc3_gadget_kick_transfer(dep, uf);
dep->frame_number = cur_uf + max_t(u32, 4, dep->interval);
__dwc3_gadget_kick_transfer(dep, dep->frame_number);
}
static void dwc3_gadget_start_isoc(struct dwc3 *dwc,