static int cx18_encoder_cmd(struct file *file, void *fh,
struct v4l2_encoder_cmd *enc)
{
struct cx18_open_id *id = fh;
struct cx18 *cx = id->cx;
u32 h;
switch (enc->cmd) {
case V4L2_ENC_CMD_START:
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
enc->flags = 0;
return cx18_start_capture(id);
case V4L2_ENC_CMD_STOP:
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
cx18_stop_capture(id,
enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
break;
case V4L2_ENC_CMD_PAUSE:
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
enc->flags = 0;
if (!atomic_read(&cx->ana_capturing))
return -EPERM;
if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
return 0;
h = cx18_find_handle(cx);
if (h == CX18_INVALID_TASK_HANDLE) {
CX18_ERR("Can't find valid task handle for "
"V4L2_ENC_CMD_PAUSE\n");
return -EBADFD;
}
cx18_mute(cx);
cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h);
break;
case V4L2_ENC_CMD_RESUME:
CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
enc->flags = 0;
if (!atomic_read(&cx->ana_capturing))
return -EPERM;
if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
return 0;
h = cx18_find_handle(cx);
if (h == CX18_INVALID_TASK_HANDLE) {
CX18_ERR("Can't find valid task handle for "
"V4L2_ENC_CMD_RESUME\n");
return -EBADFD;
}
cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h);
cx18_unmute(cx);
break;
default:
CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
return -EINVAL;
}
return 0;
}
int cx18_v4l2_close(struct inode *inode, struct file *filp)
{
struct cx18_open_id *id = filp->private_data;
struct cx18 *cx = id->cx;
struct cx18_stream *s = &cx->streams[id->type];
CX18_DEBUG_IOCTL("close() of %s\n", s->name);
v4l2_prio_close(&cx->prio, &id->prio);
/* Easy case first: this stream was never claimed by us */
if (s->id != id->open_id) {
kfree(id);
return 0;
}
/* 'Unclaim' this stream */
/* Stop radio */
mutex_lock(&cx->serialize_lock);
if (id->type == CX18_ENC_STREAM_TYPE_RAD) {
/* Closing radio device, return to TV mode */
cx18_mute(cx);
/* Mark that the radio is no longer in use */
clear_bit(CX18_F_I_RADIO_USER, &cx->i_flags);
/* Switch tuner to TV */
cx18_call_i2c_clients(cx, VIDIOC_S_STD, &cx->std);
/* Select correct audio input (i.e. TV tuner or Line in) */
cx18_audio_set_io(cx);
if (atomic_read(&cx->ana_capturing) > 0) {
/* Undo video mute */
cx18_vapi(cx, CX18_CPU_SET_VIDEO_MUTE, 2, s->handle,
cx->params.video_mute |
(cx->params.video_mute_yuv << 8));
}
/* Done! Unmute and continue. */
cx18_unmute(cx);
cx18_release_stream(s);
} else {
cx18_stop_capture(id, 0);
}
kfree(id);
mutex_unlock(&cx->serialize_lock);
return 0;
}
