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[media] av7110: fix v4l2_compliance test issues
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Besides the usual inconsistencies in input enumeration there was also a
kernel crash if you tried to poll on a vbi node. The checks for sliced
vbi output vs vbi capture were not complete enough.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Hans Verkuil authored and Mauro Carvalho Chehab committed May 14, 2012
1 parent 7088f4d commit a299e40
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Showing 3 changed files with 41 additions and 15 deletions.
4 changes: 4 additions & 0 deletions drivers/media/common/saa7146_fops.c
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Original file line number Diff line number Diff line change
Expand Up @@ -309,6 +309,8 @@ static int fops_mmap(struct file *file, struct vm_area_struct * vma)
case VFL_TYPE_VBI: {
DEB_EE("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, vma:%p\n",
file, vma);
if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_SLICED_VBI_OUTPUT)
return -ENODEV;
q = &fh->vbi_q;
break;
}
Expand All @@ -331,6 +333,8 @@ static unsigned int fops_poll(struct file *file, struct poll_table_struct *wait)
DEB_EE("file:%p, poll:%p\n", file, wait);

if (vdev->vfl_type == VFL_TYPE_VBI) {
if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_SLICED_VBI_OUTPUT)
return res | POLLOUT | POLLWRNORM;
if( 0 == fh->vbi_q.streaming )
return res | videobuf_poll_stream(file, &fh->vbi_q, wait);
q = &fh->vbi_q;
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4 changes: 2 additions & 2 deletions drivers/media/common/saa7146_video.c
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Original file line number Diff line number Diff line change
Expand Up @@ -458,13 +458,13 @@ static int vidioc_querycap(struct file *file, void *fh, struct v4l2_capability *
V4L2_CAP_READWRITE |
V4L2_CAP_STREAMING;
cap->device_caps |= dev->ext_vv_data->capabilities;
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
if (vdev->vfl_type == VFL_TYPE_GRABBER)
cap->device_caps &=
~(V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_OUTPUT);
else
cap->device_caps &=
~(V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY);
cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
~(V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | V4L2_CAP_AUDIO);
return 0;
}

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48 changes: 35 additions & 13 deletions drivers/media/dvb/ttpci/av7110_v4l.c
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Original file line number Diff line number Diff line change
Expand Up @@ -107,7 +107,7 @@ static struct v4l2_input inputs[4] = {
.index = 1,
.name = "Television",
.type = V4L2_INPUT_TYPE_TUNER,
.audioset = 2,
.audioset = 1,
.tuner = 0,
.std = V4L2_STD_PAL_BG|V4L2_STD_NTSC_M,
.status = 0,
Expand Down Expand Up @@ -494,7 +494,7 @@ static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
dprintk(2, "VIDIOC_S_INPUT: %d\n", input);

if (!av7110->analog_tuner_flags)
return 0;
return input ? -EINVAL : 0;

if (input >= 4)
return -EINVAL;
Expand All @@ -503,19 +503,38 @@ static int vidioc_s_input(struct file *file, void *fh, unsigned int input)
return av7110_dvb_c_switch(fh);
}

static int vidioc_enumaudio(struct file *file, void *fh, struct v4l2_audio *a)
{
dprintk(2, "VIDIOC_G_AUDIO: %d\n", a->index);
if (a->index != 0)
return -EINVAL;
*a = msp3400_v4l2_audio;
return 0;
}

static int vidioc_g_audio(struct file *file, void *fh, struct v4l2_audio *a)
{
struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
struct av7110 *av7110 = (struct av7110 *)dev->ext_priv;

dprintk(2, "VIDIOC_G_AUDIO: %d\n", a->index);
if (a->index != 0)
return -EINVAL;
memcpy(a, &msp3400_v4l2_audio, sizeof(struct v4l2_audio));
if (av7110->current_input >= 2)
return -EINVAL;
*a = msp3400_v4l2_audio;
return 0;
}

static int vidioc_s_audio(struct file *file, void *fh, struct v4l2_audio *a)
{
struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev;
struct av7110 *av7110 = (struct av7110 *)dev->ext_priv;

dprintk(2, "VIDIOC_S_AUDIO: %d\n", a->index);
return 0;
if (av7110->current_input >= 2)
return -EINVAL;
return a->index ? -EINVAL : 0;
}

static int vidioc_g_sliced_vbi_cap(struct file *file, void *fh,
Expand Down Expand Up @@ -809,29 +828,32 @@ int av7110_init_v4l(struct av7110 *av7110)
vv_data->vid_ops.vidioc_s_tuner = vidioc_s_tuner;
vv_data->vid_ops.vidioc_g_frequency = vidioc_g_frequency;
vv_data->vid_ops.vidioc_s_frequency = vidioc_s_frequency;
vv_data->vid_ops.vidioc_enumaudio = vidioc_enumaudio;
vv_data->vid_ops.vidioc_g_audio = vidioc_g_audio;
vv_data->vid_ops.vidioc_s_audio = vidioc_s_audio;
vv_data->vid_ops.vidioc_g_fmt_vbi_cap = NULL;

vv_data->vbi_ops.vidioc_enum_input = vidioc_enum_input;
vv_data->vbi_ops.vidioc_g_input = vidioc_g_input;
vv_data->vbi_ops.vidioc_s_input = vidioc_s_input;
vv_data->vbi_ops.vidioc_g_tuner = vidioc_g_tuner;
vv_data->vbi_ops.vidioc_s_tuner = vidioc_s_tuner;
vv_data->vbi_ops.vidioc_g_frequency = vidioc_g_frequency;
vv_data->vbi_ops.vidioc_s_frequency = vidioc_s_frequency;
vv_data->vbi_ops.vidioc_g_audio = vidioc_g_audio;
vv_data->vbi_ops.vidioc_s_audio = vidioc_s_audio;
vv_data->vbi_ops.vidioc_g_fmt_vbi_cap = NULL;
vv_data->vbi_ops.vidioc_g_sliced_vbi_cap = vidioc_g_sliced_vbi_cap;
vv_data->vbi_ops.vidioc_g_fmt_sliced_vbi_out = vidioc_g_fmt_sliced_vbi_out;
vv_data->vbi_ops.vidioc_s_fmt_sliced_vbi_out = vidioc_s_fmt_sliced_vbi_out;

if (FW_VERSION(av7110->arm_app) < 0x2623)
vv_data->capabilities &= ~V4L2_CAP_SLICED_VBI_OUTPUT;

if (saa7146_register_device(&av7110->v4l_dev, dev, "av7110", VFL_TYPE_GRABBER)) {
ERR("cannot register capture device. skipping\n");
saa7146_vv_release(dev);
return -ENODEV;
}
if (saa7146_register_device(&av7110->vbi_dev, dev, "av7110", VFL_TYPE_VBI))
ERR("cannot register vbi v4l2 device. skipping\n");
if (FW_VERSION(av7110->arm_app) >= 0x2623) {
if (saa7146_register_device(&av7110->vbi_dev, dev, "av7110", VFL_TYPE_VBI))
ERR("cannot register vbi v4l2 device. skipping\n");
}
return 0;
}

Expand Down Expand Up @@ -915,7 +937,7 @@ static int std_callback(struct saa7146_dev* dev, struct saa7146_standard *std)
static struct saa7146_ext_vv av7110_vv_data_st = {
.inputs = 1,
.audios = 1,
.capabilities = V4L2_CAP_SLICED_VBI_OUTPUT,
.capabilities = V4L2_CAP_SLICED_VBI_OUTPUT | V4L2_CAP_AUDIO,
.flags = 0,

.stds = &standard[0],
Expand All @@ -930,7 +952,7 @@ static struct saa7146_ext_vv av7110_vv_data_st = {
static struct saa7146_ext_vv av7110_vv_data_c = {
.inputs = 1,
.audios = 1,
.capabilities = V4L2_CAP_TUNER | V4L2_CAP_SLICED_VBI_OUTPUT,
.capabilities = V4L2_CAP_TUNER | V4L2_CAP_SLICED_VBI_OUTPUT | V4L2_CAP_AUDIO,
.flags = SAA7146_USE_PORT_B_FOR_VBI,

.stds = &standard[0],
Expand Down

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