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Diffstat (limited to 'linux/drivers/media/video/em28xx/em28xx-video.c')
-rw-r--r--linux/drivers/media/video/em28xx/em28xx-video.c104
1 files changed, 85 insertions, 19 deletions
diff --git a/linux/drivers/media/video/em28xx/em28xx-video.c b/linux/drivers/media/video/em28xx/em28xx-video.c
index 8cb8674c9..c7d723a03 100644
--- a/linux/drivers/media/video/em28xx/em28xx-video.c
+++ b/linux/drivers/media/video/em28xx/em28xx-video.c
@@ -212,15 +212,24 @@ static void em28xx_copy_video(struct em28xx *dev,
startread = p;
remain = len;
- /* Interlaces frame */
- if (buf->top_field)
+ if (dev->progressive)
fieldstart = outp;
- else
- fieldstart = outp + bytesperline;
+ else {
+ /* Interlaces two half frames */
+ if (buf->top_field)
+ fieldstart = outp;
+ else
+ fieldstart = outp + bytesperline;
+ }
linesdone = dma_q->pos / bytesperline;
currlinedone = dma_q->pos % bytesperline;
- offset = linesdone * bytesperline * 2 + currlinedone;
+
+ if (dev->progressive)
+ offset = linesdone * bytesperline + currlinedone;
+ else
+ offset = linesdone * bytesperline * 2 + currlinedone;
+
startwrite = fieldstart + offset;
lencopy = bytesperline - currlinedone;
lencopy = lencopy > remain ? remain : lencopy;
@@ -398,7 +407,7 @@ static inline int em28xx_isoc_copy(struct em28xx *dev, struct urb *urb)
em28xx_isocdbg("Video frame %d, length=%i, %s\n", p[2],
len, (p[2] & 1) ? "odd" : "even");
- if (!(p[2] & 1)) {
+ if (dev->progressive || !(p[2] & 1)) {
if (buf != NULL)
buffer_filled(dev, dma_q, buf);
get_next_buf(dma_q, &buf);
@@ -742,7 +751,10 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
/* FIXME: TOP? NONE? BOTTOM? ALTENATE? */
- f->fmt.pix.field = dev->interlaced ?
+ if (dev->progressive)
+ f->fmt.pix.field = V4L2_FIELD_NONE;
+ else
+ f->fmt.pix.field = dev->interlaced ?
V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
mutex_unlock(&dev->lock);
@@ -806,7 +818,11 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3;
f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
- f->fmt.pix.field = V4L2_FIELD_INTERLACED;
+ if (dev->progressive)
+ f->fmt.pix.field = V4L2_FIELD_NONE;
+ else
+ f->fmt.pix.field = dev->interlaced ?
+ V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
return 0;
}
@@ -899,6 +915,41 @@ static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
return 0;
}
+static int vidioc_g_parm(struct file *file, void *priv,
+ struct v4l2_streamparm *p)
+{
+ struct em28xx_fh *fh = priv;
+ struct em28xx *dev = fh->dev;
+ int rc = 0;
+
+ if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ if (dev->board.is_webcam)
+ rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0,
+ video, g_parm, p);
+ else
+ v4l2_video_std_frame_period(dev->norm,
+ &p->parm.capture.timeperframe);
+
+ return rc;
+}
+
+static int vidioc_s_parm(struct file *file, void *priv,
+ struct v4l2_streamparm *p)
+{
+ struct em28xx_fh *fh = priv;
+ struct em28xx *dev = fh->dev;
+
+ if (!dev->board.is_webcam)
+ return -EINVAL;
+
+ if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ return v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, s_parm, p);
+}
+
static const char *iname[] = {
[EM28XX_VMUX_COMPOSITE1] = "Composite1",
[EM28XX_VMUX_COMPOSITE2] = "Composite2",
@@ -976,6 +1027,9 @@ static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
struct em28xx_fh *fh = priv;
struct em28xx *dev = fh->dev;
+ if (!dev->audio_mode.has_audio)
+ return -EINVAL;
+
switch (a->index) {
case EM28XX_AMUX_VIDEO:
strcpy(a->name, "Television");
@@ -1022,6 +1076,9 @@ static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
return -EINVAL;
#else
+ if (!dev->audio_mode.has_audio)
+ return -EINVAL;
+
if (a->index >= MAX_EM28XX_INPUT)
return -EINVAL;
if (0 == INPUT(a->index)->type)
@@ -1136,15 +1193,12 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
switch (ctrl->id) {
case V4L2_CID_AUDIO_MUTE:
dev->mute = ctrl->value;
- return em28xx_audio_analog_set(dev);
+ rc = em28xx_audio_analog_set(dev);
break;
case V4L2_CID_AUDIO_VOLUME:
dev->volume = ctrl->value;
- return em28xx_audio_analog_set(dev);
+ rc = em28xx_audio_analog_set(dev);
}
-
- /* FIXME: should be returning a meaninful value */
- rc = 0;
}
mutex_unlock(&dev->lock);
@@ -1288,8 +1342,9 @@ static int vidioc_g_register(struct file *file, void *priv,
v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg);
return 0;
case V4L2_CHIP_MATCH_I2C_ADDR:
- /* Not supported yet */
- return -EINVAL;
+ /* TODO: is this correct? */
+ v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg);
+ return 0;
default:
if (!v4l2_chip_match_host(&reg->match))
return -EINVAL;
@@ -1340,8 +1395,9 @@ static int vidioc_s_register(struct file *file, void *priv,
v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg);
return 0;
case V4L2_CHIP_MATCH_I2C_ADDR:
- /* Not supported yet */
- return -EINVAL;
+ /* TODO: is this correct? */
+ v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg);
+ return 0;
default:
if (!v4l2_chip_match_host(&reg->match))
return -EINVAL;
@@ -1447,9 +1503,11 @@ static int vidioc_querycap(struct file *file, void *priv,
#endif
V4L2_CAP_SLICED_VBI_CAPTURE |
V4L2_CAP_VIDEO_CAPTURE |
- V4L2_CAP_AUDIO |
V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
+ if (dev->audio_mode.has_audio)
+ cap->capabilities |= V4L2_CAP_AUDIO;
+
if (dev->tuner_type != TUNER_ABSENT)
cap->capabilities |= V4L2_CAP_TUNER;
@@ -1725,6 +1783,7 @@ static int em28xx_v4l2_open(struct file *filp)
struct em28xx *dev;
enum v4l2_buf_type fh_type;
struct em28xx_fh *fh;
+ enum v4l2_field field;
dev = em28xx_get_device(minor, &fh_type, &radio);
@@ -1781,8 +1840,13 @@ static int em28xx_v4l2_open(struct file *filp)
dev->users++;
+ if (dev->progressive)
+ field = V4L2_FIELD_NONE;
+ else
+ field = V4L2_FIELD_INTERLACED;
+
videobuf_queue_vmalloc_init(&fh->vb_vidq, &em28xx_video_qops,
- NULL, &dev->slock, fh->type, V4L2_FIELD_INTERLACED,
+ NULL, &dev->slock, fh->type, field,
sizeof(struct em28xx_buffer), fh);
mutex_unlock(&dev->lock);
@@ -2006,6 +2070,8 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_qbuf = vidioc_qbuf,
.vidioc_dqbuf = vidioc_dqbuf,
.vidioc_s_std = vidioc_s_std,
+ .vidioc_g_parm = vidioc_g_parm,
+ .vidioc_s_parm = vidioc_s_parm,
.vidioc_enum_input = vidioc_enum_input,
.vidioc_g_input = vidioc_g_input,
.vidioc_s_input = vidioc_s_input,
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-30 20:14:17 +0000