diff options
Diffstat (limited to 'drivers/media/video/s2255drv.c')
| -rw-r--r-- | drivers/media/video/s2255drv.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c index 561909b65ce6..5b9dce85645c 100644 --- a/drivers/media/video/s2255drv.c +++ b/drivers/media/video/s2255drv.c @@ -394,12 +394,17 @@ static unsigned int vid_limit = 16; /* Video memory limit, in Mb */ /* start video number */ static int video_nr = -1; /* /dev/videoN, -1 for autodetect */ +/* Enable jpeg capture. */ +static int jpeg_enable = 1; + module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Debug level(0-100) default 0"); module_param(vid_limit, int, 0644); MODULE_PARM_DESC(vid_limit, "video memory limit(Mb)"); module_param(video_nr, int, 0644); MODULE_PARM_DESC(video_nr, "start video minor(-1 default autodetect)"); +module_param(jpeg_enable, int, 0644); +MODULE_PARM_DESC(jpeg_enable, "Jpeg enable(1-on 0-off) default 1"); /* USB device table */ #define USB_SENSORAY_VID 0x1943 @@ -413,6 +418,7 @@ MODULE_DEVICE_TABLE(usb, s2255_table); #define BUFFER_TIMEOUT msecs_to_jiffies(400) /* image formats. */ +/* JPEG formats must be defined last to support jpeg_enable parameter */ static const struct s2255_fmt formats[] = { { .name = "4:2:2, planar, YUV422P", @@ -429,13 +435,17 @@ static const struct s2255_fmt formats[] = { .fourcc = V4L2_PIX_FMT_UYVY, .depth = 16 }, { + .name = "8bpp GREY", + .fourcc = V4L2_PIX_FMT_GREY, + .depth = 8 + }, { .name = "JPG", .fourcc = V4L2_PIX_FMT_JPEG, .depth = 24 }, { - .name = "8bpp GREY", - .fourcc = V4L2_PIX_FMT_GREY, - .depth = 8 + .name = "MJPG", + .fourcc = V4L2_PIX_FMT_MJPEG, + .depth = 24 } }; @@ -610,6 +620,9 @@ static const struct s2255_fmt *format_by_fourcc(int fourcc) for (i = 0; i < ARRAY_SIZE(formats); i++) { if (-1 == formats[i].fourcc) continue; + if (!jpeg_enable && ((formats[i].fourcc == V4L2_PIX_FMT_JPEG) || + (formats[i].fourcc == V4L2_PIX_FMT_MJPEG))) + continue; if (formats[i].fourcc == fourcc) return formats + i; } @@ -653,6 +666,7 @@ static void s2255_fillbuff(struct s2255_channel *channel, memcpy(vbuf, tmpbuf, buf->vb.width * buf->vb.height); break; case V4L2_PIX_FMT_JPEG: + case V4L2_PIX_FMT_MJPEG: buf->vb.size = jpgsize; memcpy(vbuf, tmpbuf, buf->vb.size); break; @@ -856,7 +870,9 @@ static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, if (index >= ARRAY_SIZE(formats)) return -EINVAL; - + if (!jpeg_enable && ((formats[index].fourcc == V4L2_PIX_FMT_JPEG) || + (formats[index].fourcc == V4L2_PIX_FMT_MJPEG))) + return -EINVAL; dprintk(4, "name %s\n", formats[index].name); strlcpy(f->description, formats[index].name, sizeof(f->description)); f->pixelformat = formats[index].fourcc; @@ -1037,6 +1053,7 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, mode.color |= COLOR_Y8; break; case V4L2_PIX_FMT_JPEG: + case V4L2_PIX_FMT_MJPEG: mode.color &= ~MASK_COLOR; mode.color |= COLOR_JPG; mode.color |= (channel->jc.quality << 8); @@ -2382,7 +2399,7 @@ static void read_pipe_completion(struct urb *purb) read_pipe_completion, pipe_info); if (pipe_info->state != 0) { - if (usb_submit_urb(pipe_info->stream_urb, GFP_KERNEL)) { + if (usb_submit_urb(pipe_info->stream_urb, GFP_ATOMIC)) { dev_err(&dev->udev->dev, "error submitting urb\n"); } } else { |