diff options
Diffstat (limited to 'sys/dev/usb/controller/dwc_otg.c')
| -rw-r--r-- | sys/dev/usb/controller/dwc_otg.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/sys/dev/usb/controller/dwc_otg.c b/sys/dev/usb/controller/dwc_otg.c index 744321b..14cf5ce 100644 --- a/sys/dev/usb/controller/dwc_otg.c +++ b/sys/dev/usb/controller/dwc_otg.c @@ -2559,6 +2559,7 @@ dwc_otg_interrupt_poll_locked(struct dwc_otg_softc *sc) struct usb_xfer *xfer; uint32_t count; uint32_t temp; + uint32_t haint; uint8_t got_rx_status; uint8_t x; @@ -2576,14 +2577,18 @@ repeat: DPRINTF("Yield\n"); return; } + /* get all host channel interrupts */ - for (x = 0; x != sc->sc_host_ch_max; x++) { + haint = DWC_OTG_READ_4(sc, DOTG_HAINT); + while (1) { + x = ffs(haint) - 1; + if (x >= sc->sc_host_ch_max) + break; temp = DWC_OTG_READ_4(sc, DOTG_HCINT(x)); - if (temp != 0) { - DWC_OTG_WRITE_4(sc, DOTG_HCINT(x), temp); - temp &= ~HCINT_SOFTWARE_ONLY; - sc->sc_chan_state[x].hcint |= temp; - } + DWC_OTG_WRITE_4(sc, DOTG_HCINT(x), temp); + temp &= ~HCINT_SOFTWARE_ONLY; + sc->sc_chan_state[x].hcint |= temp; + haint &= ~(1U << x); } if (sc->sc_last_rx_status == 0) { |
