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authorThierry MERLE <thierry.merle@free.fr>2006-12-15 16:46:53 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2006-12-27 14:19:04 -0200
commit38284ba361d69eca34a3bfc553ebfac81fea2698 (patch)
treeab923c9b82ac8f3be51006ccbd425182f3c07f42 /drivers/media/video/usbvision/usbvision-core.c
parent3a4456a073150c8b0d790daa007d2aab9ebdecb5 (diff)
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 <thierry.merle@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/usbvision/usbvision-core.c')
-rw-r--r--drivers/media/video/usbvision/usbvision-core.c48
1 files changed, 12 insertions, 36 deletions
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;
}