diff options
| -rw-r--r-- | drivers/usb/musb/musb_udc.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/usb/musb/musb_udc.c b/drivers/usb/musb/musb_udc.c index 28719cc3f6..41fff94df4 100644 --- a/drivers/usb/musb/musb_udc.c +++ b/drivers/usb/musb/musb_udc.c @@ -104,6 +104,8 @@ struct usb_endpoint_instance *ep0_endpoint; static struct usb_device_instance *udc_device; static int enabled; +static u16 pending_intrrx; + #ifdef MUSB_DEBUG static void musb_db_regs(void) { @@ -664,7 +666,10 @@ static void musb_peri_rx_ep(unsigned int ep) /* The common musb fifo reader */ read_fifo(ep, length, data); - musb_peri_rx_ack(ep); + if (length == peri_rxcount) + musb_peri_rx_ack(ep); + else + pending_intrrx |= (1 << ep); /* * urb's actual_length is updated in @@ -677,18 +682,24 @@ static void musb_peri_rx_ep(unsigned int ep) serial_printf("ERROR : %s %d no space " "in rcv buffer\n", __PRETTY_FUNCTION__, ep); + + pending_intrrx |= (1 << ep); } } else { if (debug_level > 0) serial_printf("ERROR : %s %d problem with " "endpoint\n", __PRETTY_FUNCTION__, ep); + + pending_intrrx |= (1 << ep); } } else { if (debug_level > 0) serial_printf("ERROR : %s %d with nothing to do\n", __PRETTY_FUNCTION__, ep); + + musb_peri_rx_ack(ep); } } @@ -770,6 +781,9 @@ void udc_irq(void) intrrx = readw(&musbr->intrrx); intrtx = readw(&musbr->intrtx); + intrrx |= pending_intrrx; + pending_intrrx = 0; + if (intrrx) musb_peri_rx(intrrx); |