diff options
| -rw-r--r-- | drivers/usb/gadget/s3c2410_udc.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c index c2448950a8d8..2b025200a69a 100644 --- a/drivers/usb/gadget/s3c2410_udc.c +++ b/drivers/usb/gadget/s3c2410_udc.c @@ -902,7 +902,7 @@ static irqreturn_t s3c2410_udc_irq(int dummy, void *_dev) int pwr_reg; int ep0csr; int i; - u32 idx; + u32 idx, idx2; unsigned long flags; spin_lock_irqsave(&dev->lock, flags); @@ -1017,6 +1017,20 @@ static irqreturn_t s3c2410_udc_irq(int dummy, void *_dev) } } + /* what else causes this interrupt? a receive! who is it? */ + if (!usb_status && !usbd_status && !pwr_reg && !ep0csr) { + for (i = 1; i < S3C2410_ENDPOINTS; i++) { + idx2 = udc_read(S3C2410_UDC_INDEX_REG); + udc_write(i, S3C2410_UDC_INDEX_REG); + + if (udc_read(S3C2410_UDC_OUT_CSR1_REG) & 0x1) + s3c2410_udc_handle_ep(&dev->ep[i]); + + /* restore index */ + udc_write(idx2, S3C2410_UDC_INDEX_REG); + } + } + dprintk(DEBUG_VERBOSE, "irq: %d s3c2410_udc_done.\n", IRQ_USBD); /* Restore old index */ |