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Clarify receive_packet comment, add SOF handling.

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This commit is contained in:
William D. Jones
2019-02-08 11:51:29 -05:00
parent 5645d44127
commit c7a52829f4
1 changed files with 10 additions and 1 deletions
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11
src/portable/stm/stm32f4/dcd_stm32f4.c
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@@ -154,7 +154,8 @@ bool dcd_init (uint8_t rhport)
/* USB_OTG_FS->GINTMSK |= USB_OTG_GINTMSK_USBRST | USB_OTG_GINTMSK_ENUMDNEM | \
USB_OTG_GINTMSK_ESUSPM | USB_OTG_GINTMSK_USBSUSPM | \
USB_OTG_GINTMSK_SOFM; */
USB_OTG_FS->GINTMSK |= USB_OTG_GINTMSK_USBRST | USB_OTG_GINTMSK_ENUMDNEM | USB_OTG_GINTMSK_RXFLVLM;
USB_OTG_FS->GINTMSK |= USB_OTG_GINTMSK_USBRST | USB_OTG_GINTMSK_ENUMDNEM | \
USB_OTG_GINTMSK_SOFM | USB_OTG_GINTMSK_RXFLVLM;
// Enable pullup, enable peripheral.
USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBUSBSEN | USB_OTG_GCCFG_PWRDWN;
@@ -412,6 +413,9 @@ static void receive_packet(xfer_ctl_t * xfer, /* USB_OTG_OUTEndpointTypeDef * ou
}
xfer->queued_len += xfer_size;
// Per USB spec, a short OUT packet (including length 0) is always
// indicative of the end of a transfer (at least for ctl, bulk, int).
xfer->short_packet = (xfer_size < xfer->max_size);
}
@@ -479,6 +483,11 @@ void OTG_FS_IRQHandler(void) {
dcd_event_bus_signal(0, DCD_EVENT_BUS_RESET, true);
}
if(int_status & USB_OTG_GINTSTS_SOF) {
USB_OTG_FS->GINTSTS = USB_OTG_GINTSTS_SOF;
dcd_event_bus_signal(0, DCD_EVENT_SOF, true);
}
if(int_status & USB_OTG_GINTSTS_RXFLVL) {
USB_OTG_FS->GINTSTS = USB_OTG_GINTSTS_RXFLVL;