[media] tm6000: fix querycap and input/tuner compliance issues

- add device_caps support
- fix bus_info
- fix numerous tuner-related problems due to incorrect tests
  and setting v4l2_tuner fields to wrong values.
- remove (audio) input support from the radio: it doesn't belong
  there. This also fixed a nasty issue where opening the radio
  would set dev->input to 5 for no good reason. This was never
  set back to a valid TV input after closing the radio device,
  thus leaving it at 5 which is out of bounds of the vinput
  card array.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 31 insertions, 116 deletions

diff --git a/drivers/media/usb/tm6000/tm6000-video.c b/drivers/media/usb/tm6000/tm6000-video.c
index e3c567c27918..7a653b263678 100644
--- a/drivers/media/usb/tm6000/tm6000-video.c
+++ b/drivers/media/usb/tm6000/tm6000-video.c
@@ -948,16 +948,21 @@ static int vidioc_querycap(struct file *file, void  *priv,
                                         struct v4l2_capability *cap)
 {
         struct tm6000_core *dev = ((struct tm6000_fh *)priv)->dev;
+        struct video_device *vdev = video_devdata(file);
 
         strlcpy(cap->driver, "tm6000", sizeof(cap->driver));
         strlcpy(cap->card, "Trident TVMaster TM5600/6000/6010", sizeof(cap->card));
-        cap->capabilities =     V4L2_CAP_VIDEO_CAPTURE |
-                                V4L2_CAP_STREAMING     |
-                                V4L2_CAP_AUDIO         |
-                                V4L2_CAP_READWRITE;
-
+        usb_make_path(dev->udev, cap->bus_info, sizeof(cap->bus_info));
         if (dev->tuner_type != TUNER_ABSENT)
-                cap->capabilities |= V4L2_CAP_TUNER;
+                cap->device_caps |= V4L2_CAP_TUNER;
+        if (vdev->vfl_type == VFL_TYPE_GRABBER)
+                cap->device_caps |= V4L2_CAP_VIDEO_CAPTURE |
+                                V4L2_CAP_STREAMING |
+                                V4L2_CAP_READWRITE;
+        else
+                cap->device_caps |= V4L2_CAP_RADIO;
+        cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS |
+                V4L2_CAP_RADIO | V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE;
 
         return 0;
 }
@@ -965,7 +970,7 @@ static int vidioc_querycap(struct file *file, void  *priv,
 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
                                         struct v4l2_fmtdesc *f)
 {
-        if (unlikely(f->index >= ARRAY_SIZE(format)))
+        if (f->index >= ARRAY_SIZE(format))
                 return -EINVAL;
 
         strlcpy(f->description, format[f->index].name, sizeof(f->description));
@@ -1301,14 +1306,14 @@ static int vidioc_g_tuner(struct file *file, void *priv,
         struct tm6000_fh   *fh  = priv;
         struct tm6000_core *dev = fh->dev;
 
-        if (unlikely(UNSET == dev->tuner_type))
-                return -EINVAL;
+        if (UNSET == dev->tuner_type)
+                return -ENOTTY;
         if (0 != t->index)
                 return -EINVAL;
 
         strcpy(t->name, "Television");
         t->type       = V4L2_TUNER_ANALOG_TV;
-        t->capability = V4L2_TUNER_CAP_NORM;
+        t->capability = V4L2_TUNER_CAP_NORM | V4L2_TUNER_CAP_STEREO;
         t->rangehigh  = 0xffffffffUL;
         t->rxsubchans = V4L2_TUNER_SUB_STEREO;
 
@@ -1326,11 +1331,14 @@ static int vidioc_s_tuner(struct file *file, void *priv,
         struct tm6000_core *dev = fh->dev;
 
         if (UNSET == dev->tuner_type)
-                return -EINVAL;
+                return -ENOTTY;
         if (0 != t->index)
                 return -EINVAL;
 
-        dev->amode = t->audmode;
+        if (t->audmode > V4L2_TUNER_MODE_STEREO)
+                dev->amode = V4L2_TUNER_MODE_STEREO;
+        else
+                dev->amode = t->audmode;
         dprintk(dev, 3, "audio mode: %x\n", t->audmode);
 
         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
@@ -1344,10 +1352,11 @@ static int vidioc_g_frequency(struct file *file, void *priv,
         struct tm6000_fh   *fh  = priv;
         struct tm6000_core *dev = fh->dev;
 
-        if (unlikely(UNSET == dev->tuner_type))
+        if (UNSET == dev->tuner_type)
+                return -ENOTTY;
+        if (f->tuner)
                 return -EINVAL;
 
-        f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
         f->frequency = dev->freq;
 
         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_frequency, f);
@@ -1361,13 +1370,9 @@ static int vidioc_s_frequency(struct file *file, void *priv,
         struct tm6000_fh   *fh  = priv;
         struct tm6000_core *dev = fh->dev;
 
-        if (unlikely(UNSET == dev->tuner_type))
-                return -EINVAL;
-        if (unlikely(f->tuner != 0))
-                return -EINVAL;
-        if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
-                return -EINVAL;
-        if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
+        if (UNSET == dev->tuner_type)
+                return -ENOTTY;
+        if (f->tuner != 0)
                 return -EINVAL;
 
         dev->freq = f->frequency;
@@ -1376,27 +1381,6 @@ static int vidioc_s_frequency(struct file *file, void *priv,
         return 0;
 }
 
-static int radio_querycap(struct file *file, void *priv,
-                                        struct v4l2_capability *cap)
-{
-        struct tm6000_fh *fh = file->private_data;
-        struct tm6000_core *dev = fh->dev;
-
-        strcpy(cap->driver, "tm6000");
-        strlcpy(cap->card, dev->name, sizeof(dev->name));
-        sprintf(cap->bus_info, "USB%04x:%04x",
-                le16_to_cpu(dev->udev->descriptor.idVendor),
-                le16_to_cpu(dev->udev->descriptor.idProduct));
-        cap->version = dev->dev_type;
-        cap->capabilities = V4L2_CAP_TUNER |
-                        V4L2_CAP_AUDIO     |
-                        V4L2_CAP_RADIO     |
-                        V4L2_CAP_READWRITE |
-                        V4L2_CAP_STREAMING;
-
-        return 0;
-}
-
 static int radio_g_tuner(struct file *file, void *priv,
                                         struct v4l2_tuner *t)
 {
@@ -1409,7 +1393,9 @@ static int radio_g_tuner(struct file *file, void *priv,
         memset(t, 0, sizeof(*t));
         strcpy(t->name, "Radio");
         t->type = V4L2_TUNER_RADIO;
+        t->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
         t->rxsubchans = V4L2_TUNER_SUB_STEREO;
+        t->audmode = V4L2_TUNER_MODE_STEREO;
 
         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, g_tuner, t);
 
@@ -1424,78 +1410,14 @@ static int radio_s_tuner(struct file *file, void *priv,
 
         if (0 != t->index)
                 return -EINVAL;
+        if (t->audmode > V4L2_TUNER_MODE_STEREO)
+                t->audmode = V4L2_TUNER_MODE_STEREO;
 
         v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_tuner, t);
 
         return 0;
 }
 
-static int radio_enum_input(struct file *file, void *priv,
-                                        struct v4l2_input *i)
-{
-        struct tm6000_fh *fh = priv;
-        struct tm6000_core *dev = fh->dev;
-
-        if (i->index != 0)
-                return -EINVAL;
-
-        if (!dev->rinput.type)
-                return -EINVAL;
-
-        strcpy(i->name, "Radio");
-        i->type = V4L2_INPUT_TYPE_TUNER;
-
-        return 0;
-}
-
-static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
-{
-        struct tm6000_fh *fh = priv;
-        struct tm6000_core *dev = fh->dev;
-
-        if (dev->input != 5)
-                return -EINVAL;
-
-        *i = dev->input - 5;
-
-        return 0;
-}
-
-static int radio_g_audio(struct file *file, void *priv,
-                                        struct v4l2_audio *a)
-{
-        memset(a, 0, sizeof(*a));
-        strcpy(a->name, "Radio");
-        return 0;
-}
-
-static int radio_s_audio(struct file *file, void *priv,
-                                        const struct v4l2_audio *a)
-{
-        return 0;
-}
-
-static int radio_s_input(struct file *filp, void *priv, unsigned int i)
-{
-        struct tm6000_fh *fh = priv;
-        struct tm6000_core *dev = fh->dev;
-
-        if (i)
-                return -EINVAL;
-
-        if (!dev->rinput.type)
-                return -EINVAL;
-
-        dev->input = i + 5;
-
-        return 0;
-}
-
-static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
-{
-        return 0;
-}
-
 static int radio_queryctrl(struct file *file, void *priv,
                                         struct v4l2_queryctrl *c)
 {
@@ -1599,7 +1521,6 @@ static int __tm6000_open(struct file *file)
                                 sizeof(struct tm6000_buffer), fh, &dev->lock);
         } else {
                 dprintk(dev, V4L2_DEBUG_OPEN, "video_open: setting radio device\n");
-                dev->input = 5;
                 tm6000_set_audio_rinput(dev);
                 v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio);
                 tm6000_prepare_isoc(dev);
@@ -1789,16 +1710,10 @@ static const struct v4l2_file_operations radio_fops = {
 };
 
 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
-        .vidioc_querycap        = radio_querycap,
+        .vidioc_querycap        = vidioc_querycap,
         .vidioc_g_tuner         = radio_g_tuner,
-        .vidioc_enum_input      = radio_enum_input,
-        .vidioc_g_audio         = radio_g_audio,
         .vidioc_s_tuner         = radio_s_tuner,
-        .vidioc_s_audio         = radio_s_audio,
-        .vidioc_s_input         = radio_s_input,
-        .vidioc_s_std           = radio_s_std,
         .vidioc_queryctrl       = radio_queryctrl,
-        .vidioc_g_input         = radio_g_input,
         .vidioc_g_ctrl          = vidioc_g_ctrl,
         .vidioc_s_ctrl          = vidioc_s_ctrl,
         .vidioc_g_frequency     = vidioc_g_frequency,