From: Thierry Merle Date: Sun, 27 May 2007 20:21:17 +0000 (-0300) Subject: V4L/DVB (5720): Usbvision: fix urb allocation and submits X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fe818d1d9a50930aa7e1ce7169fb42e1e0c45882;p=linux-beck.git V4L/DVB (5720): Usbvision: fix urb allocation and submits - fixed the urb allocation part that was not taking into account the current alternate setting this fixes usb_submit_urb returning -90 errno in isocIrq. - fixed usb_submit_urb returning -1 errno in isocIrq (need to ignore usb urb with status==-ENOENT) Acked-by: Dwaine P. Garden Signed-off-by: Thierry Merle Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/usbvision/usbvision-core.c b/drivers/media/video/usbvision/usbvision-core.c index 9118a6227ea6..7df071eb0a3b 100644 --- a/drivers/media/video/usbvision/usbvision-core.c +++ b/drivers/media/video/usbvision/usbvision-core.c @@ -1414,6 +1414,11 @@ static void usbvision_isocIrq(struct urb *urb) if (!USBVISION_IS_OPERATIONAL(usbvision)) return; + /* any urb with wrong status is ignored without acknowledgement */ + if (urb->status == -ENOENT) { + return; + } + f = &usbvision->curFrame; /* Manage streaming interruption */ @@ -1436,18 +1441,21 @@ static void usbvision_isocIrq(struct urb *urb) if (usbvision->streaming == Stream_On) { /* If we collected enough data let's parse! */ - if (scratch_len(usbvision) > USBVISION_HEADER_LENGTH) { /* 12 == header_length */ - /*If we don't have a frame we're current working on, complain */ - if(!list_empty(&(usbvision->inqueue))) { - if (!(*f)) { - (*f) = list_entry(usbvision->inqueue.next,struct usbvision_frame, frame); - } - usbvision_parse_data(usbvision); - } - else { - PDEBUG(DBG_IRQ, "received data, but no one needs it"); - scratch_reset(usbvision); + if ((scratch_len(usbvision) > USBVISION_HEADER_LENGTH) && + (!list_empty(&(usbvision->inqueue))) ) { + if (!(*f)) { + (*f) = list_entry(usbvision->inqueue.next, + struct usbvision_frame, + frame); } + usbvision_parse_data(usbvision); + } + else { + /*If we don't have a frame + we're current working on, complain */ + PDEBUG(DBG_IRQ, + "received data, but no one needs it"); + scratch_reset(usbvision); } } else { @@ -1466,10 +1474,10 @@ static void usbvision_isocIrq(struct urb *urb) urb->dev = usbvision->dev; errCode = usb_submit_urb (urb, GFP_ATOMIC); - /* Disable this warning. By design of the driver. */ - // if(errCode) { - // err("%s: usb_submit_urb failed: error %d", __FUNCTION__, errCode); - // } + if(errCode) { + err("%s: usb_submit_urb failed: error %d", + __FUNCTION__, errCode); + } return; } @@ -2394,7 +2402,7 @@ int usbvision_init_isoc(struct usb_usbvision *usbvision) { struct usb_device *dev = usbvision->dev; int bufIdx, errCode, regValue; - const int sb_size = USBVISION_URB_FRAMES * USBVISION_MAX_ISOC_PACKET_SIZE; + int sb_size; if (!USBVISION_IS_OPERATIONAL(usbvision)) return -EFAULT; @@ -2408,11 +2416,14 @@ int usbvision_init_isoc(struct usb_usbvision *usbvision) usbvision->last_error = errCode; return -EBUSY; } + sb_size = USBVISION_URB_FRAMES * usbvision->isocPacketSize; - regValue = (16 - usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F; + regValue = (16 - usbvision_read_reg(usbvision, + USBVISION_ALTER_REG)) & 0x0F; usbvision->usb_bandwidth = regValue >> 1; - PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", usbvision->usb_bandwidth); + PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", + usbvision->usb_bandwidth); @@ -2428,7 +2439,11 @@ int usbvision_init_isoc(struct usb_usbvision *usbvision) return -ENOMEM; } usbvision->sbuf[bufIdx].urb = urb; - usbvision->sbuf[bufIdx].data = usb_buffer_alloc(usbvision->dev, sb_size, GFP_KERNEL,&urb->transfer_dma); + usbvision->sbuf[bufIdx].data = + usb_buffer_alloc(usbvision->dev, + sb_size, + GFP_KERNEL, + &urb->transfer_dma); urb->dev = dev; urb->context = usbvision; urb->pipe = usb_rcvisocpipe(dev, usbvision->video_endp); @@ -2442,21 +2457,26 @@ int usbvision_init_isoc(struct usb_usbvision *usbvision) for (j = k = 0; j < USBVISION_URB_FRAMES; j++, k += usbvision->isocPacketSize) { urb->iso_frame_desc[j].offset = k; - urb->iso_frame_desc[j].length = usbvision->isocPacketSize; + urb->iso_frame_desc[j].length = + usbvision->isocPacketSize; } } /* Submit all URBs */ for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) { - errCode = usb_submit_urb(usbvision->sbuf[bufIdx].urb, GFP_KERNEL); + errCode = usb_submit_urb(usbvision->sbuf[bufIdx].urb, + GFP_KERNEL); if (errCode) { - err("%s: usb_submit_urb(%d) failed: error %d", __FUNCTION__, bufIdx, errCode); + err("%s: usb_submit_urb(%d) failed: error %d", + __FUNCTION__, bufIdx, errCode); } } usbvision->streaming = Stream_Idle; - PDEBUG(DBG_ISOC, "%s: streaming=1 usbvision->video_endp=$%02x", __FUNCTION__, usbvision->video_endp); + PDEBUG(DBG_ISOC, "%s: streaming=1 usbvision->video_endp=$%02x", + __FUNCTION__, + usbvision->video_endp); return 0; } @@ -2470,7 +2490,7 @@ int usbvision_init_isoc(struct usb_usbvision *usbvision) void usbvision_stop_isoc(struct usb_usbvision *usbvision) { int bufIdx, errCode, regValue; - const int sb_size = USBVISION_URB_FRAMES * USBVISION_MAX_ISOC_PACKET_SIZE; + int sb_size = USBVISION_URB_FRAMES * usbvision->isocPacketSize; if ((usbvision->streaming == Stream_Off) || (usbvision->dev == NULL)) return; @@ -2499,15 +2519,19 @@ void usbvision_stop_isoc(struct usb_usbvision *usbvision) errCode = usb_set_interface(usbvision->dev, usbvision->iface, usbvision->ifaceAlt); if (errCode < 0) { - err("%s: usb_set_interface() failed: error %d", __FUNCTION__, errCode); + err("%s: usb_set_interface() failed: error %d", + __FUNCTION__, errCode); usbvision->last_error = errCode; } - regValue = (16 - usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F; - usbvision->isocPacketSize = (regValue == 0) ? 0 : (regValue * 64) - 1; - PDEBUG(DBG_ISOC, "ISO Packet Length:%d", usbvision->isocPacketSize); + regValue = (16-usbvision_read_reg(usbvision, USBVISION_ALTER_REG)) & 0x0F; + usbvision->isocPacketSize = + (regValue == 0) ? 0 : (regValue * 64) - 1; + PDEBUG(DBG_ISOC, "ISO Packet Length:%d", + usbvision->isocPacketSize); usbvision->usb_bandwidth = regValue >> 1; - PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", usbvision->usb_bandwidth); + PDEBUG(DBG_ISOC, "USB Bandwidth Usage: %dMbit/Sec", + usbvision->usb_bandwidth); } } diff --git a/drivers/media/video/usbvision/usbvision.h b/drivers/media/video/usbvision/usbvision.h index bd6f6422ed54..c759d00d7014 100644 --- a/drivers/media/video/usbvision/usbvision.h +++ b/drivers/media/video/usbvision/usbvision.h @@ -146,7 +146,6 @@ #define USBVISION_CLIPMASK_SIZE (MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT / 8) //bytesize of clipmask #define USBVISION_URB_FRAMES 32 -#define USBVISION_MAX_ISOC_PACKET_SIZE 959 // NT1003 Specs Document says 1023 #define USBVISION_NUM_HEADERMARKER 20 #define USBVISION_NUMFRAMES 3 /* Maximum number of frames an application can get */