diff options
Diffstat (limited to 'drivers/media/pci/saa7134/saa7134-empress.c')
| -rw-r--r-- | drivers/media/pci/saa7134/saa7134-empress.c | 98 |
1 files changed, 20 insertions, 78 deletions
diff --git a/drivers/media/pci/saa7134/saa7134-empress.c b/drivers/media/pci/saa7134/saa7134-empress.c index 17e5fcdad32a..2ef670d05bda 100644 --- a/drivers/media/pci/saa7134/saa7134-empress.c +++ b/drivers/media/pci/saa7134/saa7134-empress.c @@ -86,20 +86,11 @@ static int ts_open(struct file *file) struct video_device *vdev = video_devdata(file); struct saa7134_dev *dev = video_drvdata(file); struct saa7134_fh *fh; - int err; - - dprintk("open dev=%s\n", video_device_node_name(vdev)); - err = -EBUSY; - if (!mutex_trylock(&dev->empress_tsq.vb_lock)) - return err; - if (atomic_read(&dev->empress_users)) - goto done; /* allocate + initialize per filehandle data */ fh = kzalloc(sizeof(*fh), GFP_KERNEL); - err = -ENOMEM; if (NULL == fh) - goto done; + return -ENOMEM; v4l2_fh_init(&fh->fh, vdev); file->private_data = fh; @@ -110,12 +101,7 @@ static int ts_open(struct file *file) saa_writeb(SAA7134_AUDIO_MUTE_CTRL, saa_readb(SAA7134_AUDIO_MUTE_CTRL) & ~(1 << 6)); - atomic_inc(&dev->empress_users); - err = 0; - -done: - mutex_unlock(&dev->empress_tsq.vb_lock); - return err; + return 0; } static int ts_release(struct file *file) @@ -123,17 +109,17 @@ static int ts_release(struct file *file) struct saa7134_dev *dev = video_drvdata(file); struct saa7134_fh *fh = file->private_data; - videobuf_stop(&dev->empress_tsq); - videobuf_mmap_free(&dev->empress_tsq); + if (res_check(fh, RESOURCE_EMPRESS)) { + videobuf_stop(&dev->empress_tsq); + videobuf_mmap_free(&dev->empress_tsq); - /* stop the encoder */ - ts_reset_encoder(dev); + /* stop the encoder */ + ts_reset_encoder(dev); - /* Mute audio */ - saa_writeb(SAA7134_AUDIO_MUTE_CTRL, - saa_readb(SAA7134_AUDIO_MUTE_CTRL) | (1 << 6)); - - atomic_dec(&dev->empress_users); + /* Mute audio */ + saa_writeb(SAA7134_AUDIO_MUTE_CTRL, + saa_readb(SAA7134_AUDIO_MUTE_CTRL) | (1 << 6)); + } v4l2_fh_del(&fh->fh); v4l2_fh_exit(&fh->fh); @@ -145,6 +131,8 @@ ts_read(struct file *file, char __user *data, size_t count, loff_t *ppos) { struct saa7134_dev *dev = video_drvdata(file); + if (res_locked(dev, RESOURCE_EMPRESS)) + return -EBUSY; if (!dev->empress_started) ts_init_encoder(dev); @@ -235,53 +223,6 @@ static int empress_try_fmt_vid_cap(struct file *file, void *priv, return 0; } -static int empress_reqbufs(struct file *file, void *priv, - struct v4l2_requestbuffers *p) -{ - struct saa7134_dev *dev = video_drvdata(file); - - return videobuf_reqbufs(&dev->empress_tsq, p); -} - -static int empress_querybuf(struct file *file, void *priv, - struct v4l2_buffer *b) -{ - struct saa7134_dev *dev = video_drvdata(file); - - return videobuf_querybuf(&dev->empress_tsq, b); -} - -static int empress_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) -{ - struct saa7134_dev *dev = video_drvdata(file); - - return videobuf_qbuf(&dev->empress_tsq, b); -} - -static int empress_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) -{ - struct saa7134_dev *dev = video_drvdata(file); - - return videobuf_dqbuf(&dev->empress_tsq, b, - file->f_flags & O_NONBLOCK); -} - -static int empress_streamon(struct file *file, void *priv, - enum v4l2_buf_type type) -{ - struct saa7134_dev *dev = video_drvdata(file); - - return videobuf_streamon(&dev->empress_tsq); -} - -static int empress_streamoff(struct file *file, void *priv, - enum v4l2_buf_type type) -{ - struct saa7134_dev *dev = video_drvdata(file); - - return videobuf_streamoff(&dev->empress_tsq); -} - static const struct v4l2_file_operations ts_fops = { .owner = THIS_MODULE, @@ -299,12 +240,12 @@ static const struct v4l2_ioctl_ops ts_ioctl_ops = { .vidioc_try_fmt_vid_cap = empress_try_fmt_vid_cap, .vidioc_s_fmt_vid_cap = empress_s_fmt_vid_cap, .vidioc_g_fmt_vid_cap = empress_g_fmt_vid_cap, - .vidioc_reqbufs = empress_reqbufs, - .vidioc_querybuf = empress_querybuf, - .vidioc_qbuf = empress_qbuf, - .vidioc_dqbuf = empress_dqbuf, - .vidioc_streamon = empress_streamon, - .vidioc_streamoff = empress_streamoff, + .vidioc_reqbufs = saa7134_reqbufs, + .vidioc_querybuf = saa7134_querybuf, + .vidioc_qbuf = saa7134_qbuf, + .vidioc_dqbuf = saa7134_dqbuf, + .vidioc_streamon = saa7134_streamon, + .vidioc_streamoff = saa7134_streamoff, .vidioc_g_frequency = saa7134_g_frequency, .vidioc_s_frequency = saa7134_s_frequency, .vidioc_g_tuner = saa7134_g_tuner, @@ -375,6 +316,7 @@ static int empress_init(struct saa7134_dev *dev) snprintf(dev->empress_dev->name, sizeof(dev->empress_dev->name), "%s empress (%s)", dev->name, saa7134_boards[dev->board].name); + set_bit(V4L2_FL_USE_FH_PRIO, &dev->empress_dev->flags); v4l2_ctrl_handler_init(hdl, 21); v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler, empress_ctrl_filter); if (dev->empress_sd) |