From 38284ba361d69eca34a3bfc553ebfac81fea2698 Mon Sep 17 00:00:00 2001 From: Thierry MERLE Date: Fri, 15 Dec 2006 16:46:53 -0300 Subject: V4L/DVB (4970): Usbvision memory fixes - fix decompression buffer allocation not done at first driver open - simplification of USB sbuf allocation (use of usb_buffer_alloc) - replaced vmalloc by vmalloc_32 (for homogeneity) - add of saa7111 (i2cAddr=0x48) detection printout in attach_inform Signed-off-by: Thierry MERLE Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/usbvision/usbvision-core.c | 48 +++++++------------------- 1 file changed, 12 insertions(+), 36 deletions(-) (limited to 'drivers/media/video/usbvision/usbvision-core.c') diff --git a/drivers/media/video/usbvision/usbvision-core.c b/drivers/media/video/usbvision/usbvision-core.c index 61268730500..68542f2cf00 100644 --- a/drivers/media/video/usbvision/usbvision-core.c +++ b/drivers/media/video/usbvision/usbvision-core.c @@ -374,7 +374,7 @@ static void scratch_reset(struct usb_usbvision *usbvision) int usbvision_scratch_alloc(struct usb_usbvision *usbvision) { - usbvision->scratch = vmalloc(scratch_buf_size); + usbvision->scratch = vmalloc_32(scratch_buf_size); scratch_reset(usbvision); if(usbvision->scratch == NULL) { err("%s: unable to allocate %d bytes for scratch", @@ -485,7 +485,7 @@ static void usbvision_testpattern(struct usb_usbvision *usbvision, int usbvision_decompress_alloc(struct usb_usbvision *usbvision) { int IFB_size = MAX_FRAME_WIDTH * MAX_FRAME_HEIGHT * 3 / 2; - usbvision->IntraFrameBuffer = vmalloc(IFB_size); + usbvision->IntraFrameBuffer = vmalloc_32(IFB_size); if (usbvision->IntraFrameBuffer == NULL) { err("%s: unable to allocate %d for compr. frame buffer", __FUNCTION__, IFB_size); return -ENOMEM; @@ -2204,6 +2204,7 @@ int usbvision_power_on(struct usb_usbvision *usbvision) usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN); usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN | USBVISION_RES2); + usbvision_write_reg(usbvision, USBVISION_PWR_REG, USBVISION_SSPND_EN | USBVISION_PWR_VID); errCode = usbvision_write_reg(usbvision, USBVISION_PWR_REG, @@ -2351,40 +2352,6 @@ int usbvision_setup(struct usb_usbvision *usbvision,int format) return USBVISION_IS_OPERATIONAL(usbvision); } - -int usbvision_sbuf_alloc(struct usb_usbvision *usbvision) -{ - int i, errCode = 0; - const int sb_size = USBVISION_URB_FRAMES * USBVISION_MAX_ISOC_PACKET_SIZE; - - /* Clean pointers so we know if we allocated something */ - for (i = 0; i < USBVISION_NUMSBUF; i++) - usbvision->sbuf[i].data = NULL; - - for (i = 0; i < USBVISION_NUMSBUF; i++) { - usbvision->sbuf[i].data = kzalloc(sb_size, GFP_KERNEL); - if (usbvision->sbuf[i].data == NULL) { - err("%s: unable to allocate %d bytes for sbuf", __FUNCTION__, sb_size); - errCode = -ENOMEM; - break; - } - } - return errCode; -} - - -void usbvision_sbuf_free(struct usb_usbvision *usbvision) -{ - int i; - - for (i = 0; i < USBVISION_NUMSBUF; i++) { - if (usbvision->sbuf[i].data != NULL) { - kfree(usbvision->sbuf[i].data); - usbvision->sbuf[i].data = NULL; - } - } -} - /* * usbvision_init_isoc() * @@ -2393,6 +2360,7 @@ 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; if (!USBVISION_IS_OPERATIONAL(usbvision)) return -EFAULT; @@ -2428,6 +2396,7 @@ 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); urb->dev = dev; urb->context = usbvision; urb->pipe = usb_rcvisocpipe(dev, usbvision->video_endp); @@ -2469,6 +2438,7 @@ 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; if ((usbvision->streaming == Stream_Off) || (usbvision->dev == NULL)) return; @@ -2476,6 +2446,12 @@ void usbvision_stop_isoc(struct usb_usbvision *usbvision) /* Unschedule all of the iso td's */ for (bufIdx = 0; bufIdx < USBVISION_NUMSBUF; bufIdx++) { usb_kill_urb(usbvision->sbuf[bufIdx].urb); + if (usbvision->sbuf[bufIdx].data){ + usb_buffer_free(usbvision->dev, + sb_size, + usbvision->sbuf[bufIdx].data, + usbvision->sbuf[bufIdx].urb->transfer_dma); + } usb_free_urb(usbvision->sbuf[bufIdx].urb); usbvision->sbuf[bufIdx].urb = NULL; } -- cgit v1.2.3