Пример #1
0
int ivtv_v4l2_close(struct file *filp)
{
	struct ivtv_open_id *id = filp->private_data;
	struct ivtv *itv = id->itv;
	struct ivtv_stream *s = &itv->streams[id->type];

	IVTV_DEBUG_FILE("close %s\n", s->name);

	v4l2_prio_close(&itv->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(&itv->serialize_lock);
	if (id->type == IVTV_ENC_STREAM_TYPE_RAD) {
		/* Closing radio device, return to TV mode */
		ivtv_mute(itv);
		/* Mark that the radio is no longer in use */
		clear_bit(IVTV_F_I_RADIO_USER, &itv->i_flags);
		/* Switch tuner to TV */
		ivtv_call_all(itv, core, s_std, itv->std);
		/* Select correct audio input (i.e. TV tuner or Line in) */
		ivtv_audio_set_io(itv);
		if (itv->hw_flags & IVTV_HW_SAA711X) {
			ivtv_call_hw(itv, IVTV_HW_SAA711X, video, s_crystal_freq,
					SAA7115_FREQ_32_11_MHZ, 0);
		}
		if (atomic_read(&itv->capturing) > 0) {
			/* Undo video mute */
			ivtv_vapi(itv, CX2341X_ENC_MUTE_VIDEO, 1,
				itv->params.video_mute | (itv->params.video_mute_yuv << 8));
		}
		/* Done! Unmute and continue. */
		ivtv_unmute(itv);
		ivtv_release_stream(s);
	} else if (s->type >= IVTV_DEC_STREAM_TYPE_MPG) {
		struct ivtv_stream *s_vout = &itv->streams[IVTV_DEC_STREAM_TYPE_VOUT];

		ivtv_stop_decoding(id, VIDEO_CMD_STOP_TO_BLACK | VIDEO_CMD_STOP_IMMEDIATELY, 0);

		/* If all output streams are closed, and if the user doesn't have
		   IVTV_DEC_STREAM_TYPE_VOUT open, then disable CC on TV-out. */
		if (itv->output_mode == OUT_NONE && !test_bit(IVTV_F_S_APPL_IO, &s_vout->s_flags)) {
			/* disable CC on TV-out */
			ivtv_disable_cc(itv);
		}
	} else {
		ivtv_stop_capture(id, 0);
	}
	kfree(id);
	mutex_unlock(&itv->serialize_lock);
	return 0;
}
Пример #2
0
void v4l2_fh_del(struct v4l2_fh *fh)
{
	unsigned long flags;

	spin_lock_irqsave(&fh->vdev->fh_lock, flags);
	list_del_init(&fh->list);
	spin_unlock_irqrestore(&fh->vdev->fh_lock, flags);
	if (test_bit(V4L2_FL_USE_FH_PRIO, &fh->vdev->flags))
		v4l2_prio_close(fh->vdev->prio, fh->prio);
}
Пример #3
0
/**
 * vpif_release : function to clean up file close
 * @filep: file pointer
 *
 * This function deletes buffer queue, frees the buffers and the vpfe file
 * handle
 */
static int vpif_release(struct file *filep)
{
	struct vpif_fh *fh = filep->private_data;
	struct channel_obj *ch = fh->channel;
	struct common_obj *common;

	vpif_dbg(2, debug, "vpif_release\n");

	common = &ch->common[VPIF_VIDEO_INDEX];

	if (mutex_lock_interruptible(&common->lock))
		return -ERESTARTSYS;

	/* if this instance is doing IO */
	if (fh->io_allowed[VPIF_VIDEO_INDEX]) {
		/* Reset io_usrs member of channel object */
		common->io_usrs = 0;
		/* Disable channel as per its device type and channel id */
		if (VPIF_CHANNEL0_VIDEO == ch->channel_id) {
			enable_channel0(0);
			channel0_intr_enable(0);
		}
		if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) ||
		    (2 == common->started)) {
			enable_channel1(0);
			channel1_intr_enable(0);
		}
		common->started = 0;
		/* Free buffers allocated */
		videobuf_queue_cancel(&common->buffer_queue);
		videobuf_mmap_free(&common->buffer_queue);
	}

	/* Decrement channel usrs counter */
	ch->usrs--;

	/* unlock mutex on channel object */
	mutex_unlock(&common->lock);

	/* Close the priority */
	v4l2_prio_close(&ch->prio, fh->prio);

	if (fh->initialized)
		ch->initialized = 0;

	filep->private_data = NULL;
	kfree(fh);
	return 0;
}
static int vpif_release(struct file *filep)
{
	struct vpif_fh *fh = filep->private_data;
	struct channel_obj *ch = fh->channel;
	struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];

	if (mutex_lock_interruptible(&common->lock))
		return -ERESTARTSYS;

	/* if this instance is doing IO */
	if (fh->io_allowed[VPIF_VIDEO_INDEX]) {
		/* Reset io_usrs member of channel object */
		common->io_usrs = 0;
		/* Disable channel */
		if (VPIF_CHANNEL2_VIDEO == ch->channel_id) {
			enable_channel2(0);
			channel2_intr_enable(0);
		}
		if ((VPIF_CHANNEL3_VIDEO == ch->channel_id) ||
		    (2 == common->started)) {
			enable_channel3(0);
			channel3_intr_enable(0);
		}
		common->started = 0;
		/* Free buffers allocated */
		videobuf_queue_cancel(&common->buffer_queue);
		videobuf_mmap_free(&common->buffer_queue);
		common->numbuffers =
		    config_params.numbuffers[ch->channel_id];
	}

	mutex_unlock(&common->lock);

	/* Decrement channel usrs counter */
	atomic_dec(&ch->usrs);
	/* If this file handle has initialize encoder device, reset it */
	if (fh->initialized)
		ch->initialized = 0;

	/* Close the priority */
	v4l2_prio_close(&ch->prio, fh->prio);
	filep->private_data = NULL;
	fh->initialized = 0;
	kfree(fh);

	return 0;
}
Пример #5
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;
}
static int vpif_release(struct file *filep)
{
	struct vpif_fh *fh = filep->private_data;
	struct channel_obj *ch = fh->channel;
	struct common_obj *common;

	vpif_dbg(2, debug, "vpif_release\n");

	common = &ch->common[VPIF_VIDEO_INDEX];

	
	if (fh->io_allowed[VPIF_VIDEO_INDEX]) {
		
		common->io_usrs = 0;
		
		if (VPIF_CHANNEL0_VIDEO == ch->channel_id) {
			enable_channel0(0);
			channel0_intr_enable(0);
		}
		if ((VPIF_CHANNEL1_VIDEO == ch->channel_id) ||
		    (2 == common->started)) {
			enable_channel1(0);
			channel1_intr_enable(0);
		}
		common->started = 0;
		
		videobuf_queue_cancel(&common->buffer_queue);
		videobuf_mmap_free(&common->buffer_queue);
	}

	
	ch->usrs--;

	
	v4l2_prio_close(&ch->prio, fh->prio);

	if (fh->initialized)
		ch->initialized = 0;

	filep->private_data = NULL;
	kfree(fh);
	return 0;
}