[media] saa7134: cleanup radio/video/empress ioctl handling

The video and empress nodes can share various ioctls.

Drop the input/std ioctls from the radio node (out of spec).

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

3 files changed, 61 insertions, 142 deletions

diff --git a/drivers/media/pci/saa7134/saa7134-empress.c b/drivers/media/pci/saa7134/saa7134-empress.c
index 7c24f44c98bd..8617757604b1 100644
--- a/drivers/media/pci/saa7134/saa7134-empress.c
+++ b/drivers/media/pci/saa7134/saa7134-empress.c
@@ -156,54 +156,6 @@ ts_mmap(struct file *file, struct vm_area_struct * vma)
         return videobuf_mmap_mapper(&dev->empress_tsq, vma);
 }
 
-/*
- * This function is _not_ called directly, but from
- * video_generic_ioctl (and maybe others).  userspace
- * copying is done already, arg is a kernel pointer.
- */
-
-static int empress_querycap(struct file *file, void  *priv,
-                                        struct v4l2_capability *cap)
-{
-        struct saa7134_dev *dev = file->private_data;
-
-        strcpy(cap->driver, "saa7134");
-        strlcpy(cap->card, saa7134_boards[dev->board].name,
-                sizeof(cap->card));
-        sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
-        cap->capabilities =
-                V4L2_CAP_VIDEO_CAPTURE |
-                V4L2_CAP_READWRITE |
-                V4L2_CAP_STREAMING;
-        return 0;
-}
-
-static int empress_enum_input(struct file *file, void *priv,
-                                        struct v4l2_input *i)
-{
-        if (i->index != 0)
-                return -EINVAL;
-
-        i->type = V4L2_INPUT_TYPE_CAMERA;
-        strcpy(i->name, "CCIR656");
-
-        return 0;
-}
-
-static int empress_g_input(struct file *file, void *priv, unsigned int *i)
-{
-        *i = 0;
-        return 0;
-}
-
-static int empress_s_input(struct file *file, void *priv, unsigned int i)
-{
-        if (i != 0)
-                return -EINVAL;
-
-        return 0;
-}
-
 static int empress_enum_fmt_vid_cap(struct file *file, void  *priv,
                                         struct v4l2_fmtdesc *f)
 {
@@ -316,21 +268,6 @@ static int empress_streamoff(struct file *file, void *priv,
         return videobuf_streamoff(&dev->empress_tsq);
 }
 
-static int empress_s_std(struct file *file, void *priv, v4l2_std_id id)
-{
-        struct saa7134_dev *dev = file->private_data;
-
-        return saa7134_s_std_internal(dev, NULL, id);
-}
-
-static int empress_g_std(struct file *file, void *priv, v4l2_std_id *id)
-{
-        struct saa7134_dev *dev = file->private_data;
-
-        *id = dev->tvnorm->id;
-        return 0;
-}
-
 static const struct v4l2_file_operations ts_fops =
 {
         .owner    = THIS_MODULE,
@@ -343,7 +280,7 @@ static const struct v4l2_file_operations ts_fops =
 };
 
 static const struct v4l2_ioctl_ops ts_ioctl_ops = {
-        .vidioc_querycap                = empress_querycap,
+        .vidioc_querycap                = saa7134_querycap,
         .vidioc_enum_fmt_vid_cap        = empress_enum_fmt_vid_cap,
         .vidioc_try_fmt_vid_cap         = empress_try_fmt_vid_cap,
         .vidioc_s_fmt_vid_cap           = empress_s_fmt_vid_cap,
@@ -354,11 +291,15 @@ static const struct v4l2_ioctl_ops ts_ioctl_ops = {
         .vidioc_dqbuf                   = empress_dqbuf,
         .vidioc_streamon                = empress_streamon,
         .vidioc_streamoff               = empress_streamoff,
-        .vidioc_enum_input              = empress_enum_input,
-        .vidioc_g_input                 = empress_g_input,
-        .vidioc_s_input                 = empress_s_input,
-        .vidioc_s_std                   = empress_s_std,
-        .vidioc_g_std                   = empress_g_std,
+        .vidioc_g_frequency             = saa7134_g_frequency,
+        .vidioc_s_frequency             = saa7134_s_frequency,
+        .vidioc_g_tuner                 = saa7134_g_tuner,
+        .vidioc_s_tuner                 = saa7134_s_tuner,
+        .vidioc_enum_input              = saa7134_enum_input,
+        .vidioc_g_input                 = saa7134_g_input,
+        .vidioc_s_input                 = saa7134_s_input,
+        .vidioc_s_std                   = saa7134_s_std,
+        .vidioc_g_std                   = saa7134_g_std,
 };
 
 /* ----------------------------------------------------------- */
diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c
index 7a52259b803d..4f85662cec9b 100644
--- a/drivers/media/pci/saa7134/saa7134-video.c
+++ b/drivers/media/pci/saa7134/saa7134-video.c
@@ -1512,11 +1512,9 @@ static int saa7134_s_fmt_vid_overlay(struct file *file, void *priv,
         return 0;
 }
 
-static int saa7134_enum_input(struct file *file, void *priv,
-                                        struct v4l2_input *i)
+int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i)
 {
-        struct saa7134_fh *fh = priv;
-        struct saa7134_dev *dev = fh->dev;
+        struct saa7134_dev *dev = video_drvdata(file);
         unsigned int n;
 
         n = i->index;
@@ -1543,20 +1541,20 @@ static int saa7134_enum_input(struct file *file, void *priv,
         i->std = SAA7134_NORMS;
         return 0;
 }
+EXPORT_SYMBOL_GPL(saa7134_enum_input);
 
-static int saa7134_g_input(struct file *file, void *priv, unsigned int *i)
+int saa7134_g_input(struct file *file, void *priv, unsigned int *i)
 {
-        struct saa7134_fh *fh = priv;
-        struct saa7134_dev *dev = fh->dev;
+        struct saa7134_dev *dev = video_drvdata(file);
 
         *i = dev->ctl_input;
         return 0;
 }
+EXPORT_SYMBOL_GPL(saa7134_g_input);
 
-static int saa7134_s_input(struct file *file, void *priv, unsigned int i)
+int saa7134_s_input(struct file *file, void *priv, unsigned int i)
 {
-        struct saa7134_fh *fh = priv;
-        struct saa7134_dev *dev = fh->dev;
+        struct saa7134_dev *dev = video_drvdata(file);
 
         if (i >= SAA7134_INPUT_MAX)
                 return -EINVAL;
@@ -1567,12 +1565,12 @@ static int saa7134_s_input(struct file *file, void *priv, unsigned int i)
         mutex_unlock(&dev->lock);
         return 0;
 }
+EXPORT_SYMBOL_GPL(saa7134_s_input);
 
-static int saa7134_querycap(struct file *file, void  *priv,
+int saa7134_querycap(struct file *file, void *priv,
                                         struct v4l2_capability *cap)
 {
-        struct saa7134_fh *fh = priv;
-        struct saa7134_dev *dev = fh->dev;
+        struct saa7134_dev *dev = video_drvdata(file);
         struct video_device *vdev = video_devdata(file);
         u32 radio_caps, video_caps, vbi_caps;
 
@@ -1592,7 +1590,8 @@ static int saa7134_querycap(struct file *file, void  *priv,
                 radio_caps |= V4L2_CAP_RDS_CAPTURE;
 
         video_caps = V4L2_CAP_VIDEO_CAPTURE;
-        if (saa7134_no_overlay <= 0)
+        /* For the empress video node priv == dev */
+        if (saa7134_no_overlay <= 0 && priv != dev)
                 video_caps |= V4L2_CAP_VIDEO_OVERLAY;
 
         vbi_caps = V4L2_CAP_VBI_CAPTURE;
@@ -1618,14 +1617,18 @@ static int saa7134_querycap(struct file *file, void  *priv,
 
         return 0;
 }
+EXPORT_SYMBOL_GPL(saa7134_querycap);
 
-int saa7134_s_std_internal(struct saa7134_dev *dev, struct saa7134_fh *fh, v4l2_std_id id)
+int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
 {
+        struct saa7134_dev *dev = video_drvdata(file);
+        /* For the empress video node priv == dev */
+        bool is_empress = priv == dev;
         unsigned long flags;
         unsigned int i;
         v4l2_std_id fixup;
 
-        if (!fh && res_locked(dev, RESOURCE_OVERLAY)) {
+        if (is_empress && res_locked(dev, RESOURCE_OVERLAY)) {
                 /* Don't change the std from the mpeg device
                    if overlay is active. */
                 return -EBUSY;
@@ -1665,7 +1668,7 @@ int saa7134_s_std_internal(struct saa7134_dev *dev, struct saa7134_fh *fh, v4l2_
         id = tvnorms[i].id;
 
         mutex_lock(&dev->lock);
-        if (fh && res_check(fh, RESOURCE_OVERLAY)) {
+        if (!is_empress && res_check(priv, RESOURCE_OVERLAY)) {
                 spin_lock_irqsave(&dev->slock, flags);
                 stop_preview(dev);
                 spin_unlock_irqrestore(&dev->slock, flags);
@@ -1682,23 +1685,16 @@ int saa7134_s_std_internal(struct saa7134_dev *dev, struct saa7134_fh *fh, v4l2_
         mutex_unlock(&dev->lock);
         return 0;
 }
-EXPORT_SYMBOL_GPL(saa7134_s_std_internal);
+EXPORT_SYMBOL_GPL(saa7134_s_std);
 
-static int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
+int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
 {
-        struct saa7134_fh *fh = priv;
-
-        return saa7134_s_std_internal(fh->dev, fh, id);
-}
-
-static int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
-{
-        struct saa7134_fh *fh = priv;
-        struct saa7134_dev *dev = fh->dev;
+        struct saa7134_dev *dev = video_drvdata(file);
 
         *id = dev->tvnorm->id;
         return 0;
 }
+EXPORT_SYMBOL_GPL(saa7134_g_std);
 
 static int saa7134_cropcap(struct file *file, void *priv,
                                         struct v4l2_cropcap *cap)
@@ -1773,11 +1769,10 @@ static int saa7134_s_crop(struct file *file, void *f, const struct v4l2_crop *cr
         return 0;
 }
 
-static int saa7134_g_tuner(struct file *file, void *priv,
+int saa7134_g_tuner(struct file *file, void *priv,
                                         struct v4l2_tuner *t)
 {
-        struct saa7134_fh *fh = priv;
-        struct saa7134_dev *dev = fh->dev;
+        struct saa7134_dev *dev = video_drvdata(file);
         int n;
 
         if (0 != t->index)
@@ -1804,12 +1799,12 @@ static int saa7134_g_tuner(struct file *file, void *priv,
                 t->signal = 0xffff;
         return 0;
 }
+EXPORT_SYMBOL_GPL(saa7134_g_tuner);
 
-static int saa7134_s_tuner(struct file *file, void *priv,
+int saa7134_s_tuner(struct file *file, void *priv,
                                         const struct v4l2_tuner *t)
 {
-        struct saa7134_fh *fh = priv;
-        struct saa7134_dev *dev = fh->dev;
+        struct saa7134_dev *dev = video_drvdata(file);
         int rx, mode;
 
         if (0 != t->index)
@@ -1825,12 +1820,12 @@ static int saa7134_s_tuner(struct file *file, void *priv,
 
         return 0;
 }
+EXPORT_SYMBOL_GPL(saa7134_s_tuner);
 
-static int saa7134_g_frequency(struct file *file, void *priv,
+int saa7134_g_frequency(struct file *file, void *priv,
                                         struct v4l2_frequency *f)
 {
-        struct saa7134_fh *fh = priv;
-        struct saa7134_dev *dev = fh->dev;
+        struct saa7134_dev *dev = video_drvdata(file);
 
         if (0 != f->tuner)
                 return -EINVAL;
@@ -1839,12 +1834,12 @@ static int saa7134_g_frequency(struct file *file, void *priv,
 
         return 0;
 }
+EXPORT_SYMBOL_GPL(saa7134_g_frequency);
 
-static int saa7134_s_frequency(struct file *file, void *priv,
+int saa7134_s_frequency(struct file *file, void *priv,
                                         const struct v4l2_frequency *f)
 {
-        struct saa7134_fh *fh = priv;
-        struct saa7134_dev *dev = fh->dev;
+        struct saa7134_dev *dev = video_drvdata(file);
 
         if (0 != f->tuner)
                 return -EINVAL;
@@ -1856,6 +1851,7 @@ static int saa7134_s_frequency(struct file *file, void *priv,
         mutex_unlock(&dev->lock);
         return 0;
 }
+EXPORT_SYMBOL_GPL(saa7134_s_frequency);
 
 static int saa7134_enum_fmt_vid_cap(struct file *file, void  *priv,
                                         struct v4l2_fmtdesc *f)
@@ -2076,34 +2072,6 @@ static int radio_s_tuner(struct file *file, void *priv,
         return 0;
 }
 
-static int radio_enum_input(struct file *file, void *priv,
-                                        struct v4l2_input *i)
-{
-        if (i->index != 0)
-                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)
-{
-        *i = 0;
-        return 0;
-}
-
-static int radio_s_input(struct file *filp, void *priv, unsigned int i)
-{
-        return 0;
-}
-
-static int radio_s_std(struct file *file, void *fh, v4l2_std_id norm)
-{
-        return 0;
-}
-
 static const struct v4l2_file_operations video_fops =
 {
         .owner    = THIS_MODULE,
@@ -2167,11 +2135,7 @@ static const struct v4l2_file_operations radio_fops = {
 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
         .vidioc_querycap        = saa7134_querycap,
         .vidioc_g_tuner         = radio_g_tuner,
-        .vidioc_enum_input      = radio_enum_input,
         .vidioc_s_tuner         = radio_s_tuner,
-        .vidioc_s_input         = radio_s_input,
-        .vidioc_s_std           = radio_s_std,
-        .vidioc_g_input         = radio_g_input,
         .vidioc_g_frequency     = saa7134_g_frequency,
         .vidioc_s_frequency     = saa7134_s_frequency,
 };
diff --git a/drivers/media/pci/saa7134/saa7134.h b/drivers/media/pci/saa7134/saa7134.h
index e0e5c70fb660..3573aa2f258f 100644
--- a/drivers/media/pci/saa7134/saa7134.h
+++ b/drivers/media/pci/saa7134/saa7134.h
@@ -767,7 +767,21 @@ extern unsigned int video_debug;
 extern struct video_device saa7134_video_template;
 extern struct video_device saa7134_radio_template;
 
-int saa7134_s_std_internal(struct saa7134_dev *dev,  struct saa7134_fh *fh, v4l2_std_id id);
+int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id);
+int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id);
+int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i);
+int saa7134_g_input(struct file *file, void *priv, unsigned int *i);
+int saa7134_s_input(struct file *file, void *priv, unsigned int i);
+int saa7134_querycap(struct file *file, void  *priv,
+                                        struct v4l2_capability *cap);
+int saa7134_g_tuner(struct file *file, void *priv,
+                                        struct v4l2_tuner *t);
+int saa7134_s_tuner(struct file *file, void *priv,
+                                        const struct v4l2_tuner *t);
+int saa7134_g_frequency(struct file *file, void *priv,
+                                        struct v4l2_frequency *f);
+int saa7134_s_frequency(struct file *file, void *priv,
+                                        const struct v4l2_frequency *f);
 
 int saa7134_videoport_init(struct saa7134_dev *dev);
 void saa7134_set_tvnorm_hw(struct saa7134_dev *dev);