diff options
| author |   Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-04-11 10:34:34 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-05-21 10:01:00 +0300 |
| commit | f62afb4929a83cb7e81bd2ac411f2d4977716cf6 (patch) | |
| tree | 4545eddc81623a57023edf8b2ad94819c10ce6bd /drivers/usb/dwc3/gadget.c | |
| parent | usb: dwc3: gadget: don't issue End Transfer if we have started reqs (diff) | |
| download | linux-dev-f62afb4929a83cb7e81bd2ac411f2d4977716cf6.tar.xz linux-dev-f62afb4929a83cb7e81bd2ac411f2d4977716cf6.zip | |
usb: dwc3: gadget: always start isochronous aligned to dep->interval
We will *always* start transfer to the next uFrame number aligned to
dep->interval.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index e9e0e2805431..abdc3ac24cc6 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -27,6 +27,9 @@ #include "gadget.h" #include "io.h" +#define DWC3_ALIGN_FRAME(d) (((d)->frame_number + (d)->interval) \ + & ~((d)->interval - 1)) + /** * dwc3_gadget_set_test_mode - enables usb2 test modes * @dwc: pointer to our context structure @@ -1267,11 +1270,7 @@ static void __dwc3_gadget_start_isoc(struct dwc3_ep *dep) return; } - /* - * Schedule the first trb for one interval in the future or at - * least 4 microframes. - */ - dep->frame_number += max_t(u32, 4, dep->interval); + dep->frame_number = DWC3_ALIGN_FRAME(dep); __dwc3_gadget_kick_transfer(dep); } @@ -2377,11 +2376,7 @@ static void dwc3_gadget_ep_cleanup_completed_requests(struct dwc3_ep *dep, static void dwc3_gadget_endpoint_frame_from_event(struct dwc3_ep *dep, const struct dwc3_event_depevt *event) { - u32 cur_uf, mask; - - mask = ~(dep->interval - 1); - cur_uf = event->parameters & mask; - dep->frame_number = cur_uf; + dep->frame_number = event->parameters; } static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3_ep *dep, |