V4L/DVB (8818): gspca: Reinitialize the device on resume.

[safe/jmp/linux-2.6] / drivers / media / video / saa7134 / saa7134-empress.c

diff --git a/drivers/media/video/saa7134/saa7134-empress.c b/drivers/media/video/saa7134/saa7134-empress.c
index 8b3f951..c0c5d75 100644 (file)
--- a/drivers/media/video/saa7134/saa7134-empress.c
+++ b/drivers/media/video/saa7134/saa7134-empress.c
@@ -89,14 +89,14 @@ static int ts_open(struct inode *inode, struct file *file)
        err = -EBUSY;
        if (!mutex_trylock(&dev->empress_tsq.vb_lock))
                goto done;
-       if (dev->empress_users)
+       if (atomic_read(&dev->empress_users))
                goto done_up;
 
        /* Unmute audio */
        saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
                saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6));
 
-       dev->empress_users++;
+       atomic_inc(&dev->empress_users);
        file->private_data = dev;
        err = 0;
 
@@ -110,8 +110,6 @@ static int ts_release(struct inode *inode, struct file *file)
 {
        struct saa7134_dev *dev = file->private_data;
 
-       mutex_lock(&dev->empress_tsq.vb_lock);
-
        videobuf_stop(&dev->empress_tsq);
        videobuf_mmap_free(&dev->empress_tsq);
 
@@ -122,9 +120,7 @@ static int ts_release(struct inode *inode, struct file *file)
        saa_writeb(SAA7134_AUDIO_MUTE_CTRL,
                saa_readb(SAA7134_AUDIO_MUTE_CTRL) | (1 << 6));
 
-       dev->empress_users--;
-
-       mutex_unlock(&dev->empress_tsq.vb_lock);
+       atomic_dec(&dev->empress_users);
 
        return 0;
 }
@@ -333,6 +329,22 @@ static int empress_g_ext_ctrls(struct file *file, void *priv,
        return saa7134_i2c_call_saa6752(dev, VIDIOC_G_EXT_CTRLS, ctrls);
 }
 
+static int empress_g_ctrl(struct file *file, void *priv,
+                                       struct v4l2_control *c)
+{
+       struct saa7134_dev *dev = file->private_data;
+
+       return saa7134_g_ctrl_internal(dev, NULL, c);
+}
+
+static int empress_s_ctrl(struct file *file, void *priv,
+                                       struct v4l2_control *c)
+{
+       struct saa7134_dev *dev = file->private_data;
+
+       return saa7134_s_ctrl_internal(dev, NULL, c);
+}
+
 static int empress_queryctrl(struct file *file, void *priv,
                                        struct v4l2_queryctrl *c)
 {
@@ -419,16 +431,14 @@ static const struct v4l2_ioctl_ops ts_ioctl_ops = {
 
        .vidioc_queryctrl               = empress_queryctrl,
        .vidioc_querymenu               = empress_querymenu,
-       .vidioc_g_ctrl                  = saa7134_g_ctrl,
-       .vidioc_s_ctrl                  = saa7134_s_ctrl,
+       .vidioc_g_ctrl                  = empress_g_ctrl,
+       .vidioc_s_ctrl                  = empress_s_ctrl,
 };
 
 /* ----------------------------------------------------------- */
 
 static struct video_device saa7134_empress_template = {
        .name          = "saa7134-empress",
-       .type          = 0 /* FIXME */,
-       .type2         = 0 /* FIXME */,
        .fops          = &ts_fops,
        .minor         = -1,
        .ioctl_ops     = &ts_ioctl_ops,
@@ -447,7 +457,7 @@ static void empress_signal_update(struct work_struct *work)
                ts_reset_encoder(dev);
        } else {
                dprintk("video signal acquired\n");
-               if (dev->empress_users)
+               if (atomic_read(&dev->empress_users))
                        ts_init_encoder(dev);
        }
 }