diff options
Diffstat (limited to 'drivers/usb/dwc2/gadget.c')
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 54d242b6d2aa..b8f3661771f0 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -97,6 +97,25 @@ static inline bool using_dma(struct dwc2_hsotg *hsotg) } /** + * dwc2_gadget_incr_frame_num - Increments the targeted frame number. + * @hs_ep: The endpoint + * @increment: The value to increment by + * + * This function will also check if the frame number overruns DSTS_SOFFN_LIMIT. + * If an overrun occurs it will wrap the value and set the frame_overrun flag. + */ +static inline void dwc2_gadget_incr_frame_num(struct dwc2_hsotg_ep *hs_ep) +{ + hs_ep->target_frame += hs_ep->interval; + if (hs_ep->target_frame > DSTS_SOFFN_LIMIT) { + hs_ep->frame_overrun = 1; + hs_ep->target_frame &= DSTS_SOFFN_LIMIT; + } else { + hs_ep->frame_overrun = 0; + } +} + +/** * dwc2_hsotg_en_gsint - enable one or more of the general interrupt * @hsotg: The device state * @ints: A bitmask of the interrupts to enable |