Esempio n. 1
0
static int isp_video_release(struct file *file)
{
	struct fimc_isp *isp = video_drvdata(file);
	struct fimc_is_video *ivc = &isp->video_capture;
	struct media_entity *entity = &ivc->ve.vdev.entity;
	struct media_device *mdev = entity->graph_obj.mdev;

	mutex_lock(&isp->video_lock);

	if (v4l2_fh_is_singular_file(file) && ivc->streaming) {
		media_entity_pipeline_stop(entity);
		ivc->streaming = 0;
	}

	vb2_fop_release(file);

	if (v4l2_fh_is_singular_file(file)) {
		fimc_pipeline_call(&ivc->ve, close);

		mutex_lock(&mdev->graph_mutex);
		entity->use_count--;
		mutex_unlock(&mdev->graph_mutex);
	}

	pm_runtime_put(&isp->pdev->dev);
	mutex_unlock(&isp->video_lock);

	return 0;
}
Esempio n. 2
0
static int fimc_lite_release(struct file *file)
{
	struct fimc_lite *fimc = video_drvdata(file);
	struct media_entity *entity = &fimc->ve.vdev.entity;

	mutex_lock(&fimc->lock);

	if (v4l2_fh_is_singular_file(file) &&
	    atomic_read(&fimc->out_path) == FIMC_IO_DMA) {
		if (fimc->streaming) {
			media_entity_pipeline_stop(entity);
			fimc->streaming = false;
		}
		fimc_lite_stop_capture(fimc, false);
		fimc_pipeline_call(&fimc->ve, close);
		clear_bit(ST_FLITE_IN_USE, &fimc->state);

		mutex_lock(&entity->parent->graph_mutex);
		entity->use_count--;
		mutex_unlock(&entity->parent->graph_mutex);
	}

	_vb2_fop_release(file, NULL);
	pm_runtime_put(&fimc->pdev->dev);
	clear_bit(ST_FLITE_SUSPENDED, &fimc->state);

	mutex_unlock(&fimc->lock);
	return 0;
}
Esempio n. 3
0
static int rvin_release(struct file *file)
{
	struct rvin_dev *vin = video_drvdata(file);
	bool fh_singular;
	int ret;

	mutex_lock(&vin->lock);

	/* Save the singular status before we call the clean-up helper */
	fh_singular = v4l2_fh_is_singular_file(file);

	/* the release helper will cleanup any on-going streaming */
	ret = _vb2_fop_release(file, NULL);

	/*
	 * If this was the last open file.
	 * Then de-initialize hw module.
	 */
	if (fh_singular) {
		pm_runtime_suspend(&vin->vdev.dev);
		pm_runtime_disable(&vin->vdev.dev);
		rvin_power_off(vin);
	}

	mutex_unlock(&vin->lock);

	return ret;
}
Esempio n. 4
0
/******************************************************************************
 *
 *  cpia2_open
 *
 *****************************************************************************/
static int cpia2_open(struct file *file)
{
	struct camera_data *cam = video_drvdata(file);
	int retval = v4l2_fh_open(file);

	if (retval)
		return retval;

	if (v4l2_fh_is_singular_file(file)) {
		if (cpia2_allocate_buffers(cam)) {
			v4l2_fh_release(file);
			return -ENOMEM;
		}

		/* reset the camera */
		if (cpia2_reset_camera(cam) < 0) {
			v4l2_fh_release(file);
			return -EIO;
		}

		cam->APP_len = 0;
		cam->COM_len = 0;
	}

	cpia2_dbg_dump_registers(cam);
	return 0;
}
Esempio n. 5
0
static int rvin_open(struct file *file)
{
	struct rvin_dev *vin = video_drvdata(file);
	int ret;

	mutex_lock(&vin->lock);

	file->private_data = vin;

	ret = v4l2_fh_open(file);
	if (ret)
		goto unlock;

	if (!v4l2_fh_is_singular_file(file))
		goto unlock;

	if (rvin_initialize_device(file)) {
		v4l2_fh_release(file);
		ret = -ENODEV;
	}

unlock:
	mutex_unlock(&vin->lock);
	return ret;
}
Esempio n. 6
0
/******************************************************************************
 *
 *  cpia2_open
 *
 *****************************************************************************/
static int cpia2_open(struct file *file)
{
	struct camera_data *cam = video_drvdata(file);
	int retval;

	if (mutex_lock_interruptible(&cam->v4l2_lock))
		return -ERESTARTSYS;
	retval = v4l2_fh_open(file);
	if (retval)
		goto open_unlock;

	if (v4l2_fh_is_singular_file(file)) {
		if (cpia2_allocate_buffers(cam)) {
			v4l2_fh_release(file);
			retval = -ENOMEM;
			goto open_unlock;
		}

		/* reset the camera */
		if (cpia2_reset_camera(cam) < 0) {
			v4l2_fh_release(file);
			retval = -EIO;
			goto open_unlock;
		}

		cam->APP_len = 0;
		cam->COM_len = 0;
	}

	cpia2_dbg_dump_registers(cam);
open_unlock:
	mutex_unlock(&cam->v4l2_lock);
	return retval;
}
Esempio n. 7
0
static int fimc_lite_open(struct file *file)
{
	struct fimc_lite *fimc = video_drvdata(file);
	struct media_entity *me = &fimc->ve.vdev.entity;
	int ret;

	mutex_lock(&fimc->lock);
	if (atomic_read(&fimc->out_path) != FIMC_IO_DMA) {
		ret = -EBUSY;
		goto unlock;
	}

	set_bit(ST_FLITE_IN_USE, &fimc->state);
	ret = pm_runtime_get_sync(&fimc->pdev->dev);
	if (ret < 0)
		goto unlock;

	ret = v4l2_fh_open(file);
	if (ret < 0)
		goto err_pm;

	if (!v4l2_fh_is_singular_file(file) ||
	    atomic_read(&fimc->out_path) != FIMC_IO_DMA)
		goto unlock;

	mutex_lock(&me->parent->graph_mutex);

	ret = fimc_pipeline_call(&fimc->ve, open, me, true);

	/* Mark video pipeline ending at this video node as in use. */
	if (ret == 0)
		me->use_count++;

	mutex_unlock(&me->parent->graph_mutex);

	if (!ret) {
		fimc_lite_clear_event_counters(fimc);
		goto unlock;
	}

	v4l2_fh_release(file);
err_pm:
	pm_runtime_put_sync(&fimc->pdev->dev);
	clear_bit(ST_FLITE_IN_USE, &fimc->state);
unlock:
	mutex_unlock(&fimc->lock);
	return ret;
}
static int mxr_video_release(struct file *file)
{
	struct mxr_layer *layer = video_drvdata(file);

	mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);

	/* initialize alpha blending variables */
	layer->layer_blend_en = 0;
	layer->layer_alpha = 0;
	layer->pixel_blend_en = 0;
	layer->chroma_en = 0;
	layer->chroma_val = 0;

	if (v4l2_fh_is_singular_file(file))
		vb2_queue_release(&layer->vb_queue);

	v4l2_fh_release(file);
	return 0;
}
Esempio n. 9
0
/******************************************************************************
 *
 *  cpia2_close
 *
 *****************************************************************************/
static int cpia2_close(struct file *file)
{
	struct video_device *dev = video_devdata(file);
	struct camera_data *cam = video_get_drvdata(dev);

	if (video_is_registered(&cam->vdev) && v4l2_fh_is_singular_file(file)) {
		cpia2_usb_stream_stop(cam);

		/* save camera state for later open */
		cpia2_save_camera_state(cam);

		cpia2_set_low_power(cam);
		cpia2_free_buffers(cam);
	}

	if (cam->stream_fh == file->private_data) {
		cam->stream_fh = NULL;
		cam->mmapped = 0;
	}
	return v4l2_fh_release(file);
}
Esempio n. 10
0
static int isp_video_open(struct file *file)
{
	struct fimc_isp *isp = video_drvdata(file);
	struct exynos_video_entity *ve = &isp->video_capture.ve;
	struct media_entity *me = &ve->vdev.entity;
	int ret;

	if (mutex_lock_interruptible(&isp->video_lock))
		return -ERESTARTSYS;

	ret = v4l2_fh_open(file);
	if (ret < 0)
		goto unlock;

	ret = pm_runtime_get_sync(&isp->pdev->dev);
	if (ret < 0)
		goto rel_fh;

	if (v4l2_fh_is_singular_file(file)) {
		mutex_lock(&me->graph_obj.mdev->graph_mutex);

		ret = fimc_pipeline_call(ve, open, me, true);

		/* Mark the video pipeline as in use. */
		if (ret == 0)
			me->use_count++;

		mutex_unlock(&me->graph_obj.mdev->graph_mutex);
	}
	if (!ret)
		goto unlock;
rel_fh:
	v4l2_fh_release(file);
unlock:
	mutex_unlock(&isp->video_lock);
	return ret;
}
Esempio n. 11
0
static int vivid_fop_release(struct file *file)
{
	struct vivid_dev *dev = video_drvdata(file);
	struct video_device *vdev = video_devdata(file);

	mutex_lock(&dev->mutex);
	if (!no_error_inj && v4l2_fh_is_singular_file(file) &&
	    !video_is_registered(vdev) && vivid_is_last_user(dev)) {
		/*
		 * I am the last user of this driver, and a disconnect
		 * was forced (since this video_device is unregistered),
		 * so re-register all video_device's again.
		 */
		v4l2_info(&dev->v4l2_dev, "reconnect\n");
		set_bit(V4L2_FL_REGISTERED, &dev->vid_cap_dev.flags);
		set_bit(V4L2_FL_REGISTERED, &dev->vid_out_dev.flags);
		set_bit(V4L2_FL_REGISTERED, &dev->vbi_cap_dev.flags);
		set_bit(V4L2_FL_REGISTERED, &dev->vbi_out_dev.flags);
		set_bit(V4L2_FL_REGISTERED, &dev->sdr_cap_dev.flags);
		set_bit(V4L2_FL_REGISTERED, &dev->radio_rx_dev.flags);
		set_bit(V4L2_FL_REGISTERED, &dev->radio_tx_dev.flags);
	}
	mutex_unlock(&dev->mutex);
	if (file->private_data == dev->overlay_cap_owner)
		dev->overlay_cap_owner = NULL;
	if (file->private_data == dev->radio_rx_rds_owner) {
		dev->radio_rx_rds_last_block = 0;
		dev->radio_rx_rds_owner = NULL;
	}
	if (file->private_data == dev->radio_tx_rds_owner) {
		dev->radio_tx_rds_last_block = 0;
		dev->radio_tx_rds_owner = NULL;
	}
	if (vdev->queue)
		return vb2_fop_release(file);
	return v4l2_fh_release(file);
}
static int mxr_video_open(struct file *file)
{
	struct mxr_layer *layer = video_drvdata(file);
	struct mxr_device *mdev = layer->mdev;
	int ret = 0;

	mxr_dbg(mdev, "%s:%d\n", __func__, __LINE__);
	/* assure device probe is finished */
	wait_for_device_probe();
	/* creating context for file descriptor */
	ret = v4l2_fh_open(file);
	if (ret) {
		mxr_err(mdev, "v4l2_fh_open failed\n");
		return ret;
	}

	/* leaving if layer is already initialized */
	if (!v4l2_fh_is_singular_file(file))
		return 0;

	ret = vb2_queue_init(&layer->vb_queue);
	if (ret != 0) {
		mxr_err(mdev, "failed to initialize vb2 queue\n");
		goto fail_fh_open;
	}
	/* set default format, first on the list */
	layer->fmt = layer->fmt_array[0];
	/* setup default geometry */
	mxr_layer_default_geo(layer);

	return 0;

fail_fh_open:
	v4l2_fh_release(file);

	return ret;
}
Esempio n. 13
0
static int ivtv_open(struct file *filp)
{
	struct video_device *vdev = video_devdata(filp);
	struct ivtv_stream *s = video_get_drvdata(vdev);
	struct ivtv *itv = s->itv;
	struct ivtv_open_id *item;
	int res = 0;

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

	if (ivtv_init_on_first_open(itv)) {
		IVTV_ERR("Failed to initialize on device %s\n",
			 video_device_node_name(vdev));
		return -ENXIO;
	}

#ifdef CONFIG_VIDEO_ADV_DEBUG
	/* Unless ivtv_fw_debug is set, error out if firmware dead. */
	if (ivtv_fw_debug) {
		IVTV_WARN("Opening %s with dead firmware lockout disabled\n",
			  video_device_node_name(vdev));
		IVTV_WARN("Selected firmware errors will be ignored\n");
	} else {
#else
	if (1) {
#endif
		res = ivtv_firmware_check(itv, "ivtv_serialized_open");
		if (res == -EAGAIN)
			res = ivtv_firmware_check(itv, "ivtv_serialized_open");
		if (res < 0)
			return -EIO;
	}

	if (s->type == IVTV_DEC_STREAM_TYPE_MPG &&
		test_bit(IVTV_F_S_CLAIMED, &itv->streams[IVTV_DEC_STREAM_TYPE_YUV].s_flags))
		return -EBUSY;

	if (s->type == IVTV_DEC_STREAM_TYPE_YUV &&
		test_bit(IVTV_F_S_CLAIMED, &itv->streams[IVTV_DEC_STREAM_TYPE_MPG].s_flags))
		return -EBUSY;

	if (s->type == IVTV_DEC_STREAM_TYPE_YUV) {
		if (read_reg(0x82c) == 0) {
			IVTV_ERR("Tried to open YUV output device but need to send data to mpeg decoder before it can be used\n");
			/* return -ENODEV; */
		}
		ivtv_udma_alloc(itv);
	}

	/* Allocate memory */
	item = kzalloc(sizeof(struct ivtv_open_id), GFP_KERNEL);
	if (NULL == item) {
		IVTV_DEBUG_WARN("nomem on v4l2 open\n");
		return -ENOMEM;
	}
	v4l2_fh_init(&item->fh, &s->vdev);
	item->itv = itv;
	item->type = s->type;

	filp->private_data = &item->fh;
	v4l2_fh_add(&item->fh);

	if (item->type == IVTV_ENC_STREAM_TYPE_RAD &&
			v4l2_fh_is_singular_file(filp)) {
		if (!test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags)) {
			if (atomic_read(&itv->capturing) > 0) {
				/* switching to radio while capture is
				   in progress is not polite */
				v4l2_fh_del(&item->fh);
				v4l2_fh_exit(&item->fh);
				kfree(item);
				return -EBUSY;
			}
		}
		/* Mark that the radio is being used. */
		set_bit(IVTV_F_I_RADIO_USER, &itv->i_flags);
		/* We have the radio */
		ivtv_mute(itv);
		/* Switch tuner to radio */
		ivtv_call_all(itv, tuner, s_radio);
		/* Select the correct audio input (i.e. radio tuner) */
		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, SAA7115_FREQ_FL_APLL);
		}
		/* Done! Unmute and continue. */
		ivtv_unmute(itv);
	}

	/* YUV or MPG Decoding Mode? */
	if (s->type == IVTV_DEC_STREAM_TYPE_MPG) {
		clear_bit(IVTV_F_I_DEC_YUV, &itv->i_flags);
	} else if (s->type == IVTV_DEC_STREAM_TYPE_YUV) {
		set_bit(IVTV_F_I_DEC_YUV, &itv->i_flags);
		/* For yuv, we need to know the dma size before we start */
		itv->dma_data_req_size =
				1080 * ((itv->yuv_info.v4l2_src_h + 31) & ~31);
		itv->yuv_info.stream_size = 0;
	}
	return 0;
}

int ivtv_v4l2_open(struct file *filp)
{
	struct video_device *vdev = video_devdata(filp);
	int res;

	if (mutex_lock_interruptible(vdev->lock))
		return -ERESTARTSYS;
	res = ivtv_open(filp);
	mutex_unlock(vdev->lock);
	return res;
}

void ivtv_mute(struct ivtv *itv)
{
	if (atomic_read(&itv->capturing))
		ivtv_vapi(itv, CX2341X_ENC_MUTE_AUDIO, 1, 1);
	IVTV_DEBUG_INFO("Mute\n");
}

void ivtv_unmute(struct ivtv *itv)
{
	if (atomic_read(&itv->capturing)) {
		ivtv_msleep_timeout(100, 0);
		ivtv_vapi(itv, CX2341X_ENC_MISC, 1, 12);
		ivtv_vapi(itv, CX2341X_ENC_MUTE_AUDIO, 1, 0);
	}
	IVTV_DEBUG_INFO("Unmute\n");
}
Esempio n. 14
0
int ivtv_v4l2_close(struct file *filp)
{
	struct v4l2_fh *fh = filp->private_data;
	struct ivtv_open_id *id = fh2id(fh);
	struct ivtv *itv = id->itv;
	struct ivtv_stream *s = &itv->streams[id->type];

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

	mutex_lock(&itv->serialize_lock);

	/* Stop radio */
	if (id->type == IVTV_ENC_STREAM_TYPE_RAD &&
			v4l2_fh_is_singular_file(filp)) {
		/* 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, video, 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,
					v4l2_ctrl_g_ctrl(itv->cxhdl.video_mute) |
					(v4l2_ctrl_g_ctrl(itv->cxhdl.video_mute_yuv) << 8));
		}
		/* Done! Unmute and continue. */
		ivtv_unmute(itv);
	}

	v4l2_fh_del(fh);
	v4l2_fh_exit(fh);

	/* Easy case first: this stream was never claimed by us */
	if (s->fh != &id->fh)
		goto close_done;

	/* 'Unclaim' this stream */

	if (s->type >= IVTV_DEC_STREAM_TYPE_MPG) {
		struct ivtv_stream *s_vout = &itv->streams[IVTV_DEC_STREAM_TYPE_VOUT];

		ivtv_stop_decoding(id, V4L2_DEC_CMD_STOP_TO_BLACK | V4L2_DEC_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);
	}
close_done:
	kfree(id);
	mutex_unlock(&itv->serialize_lock);
	return 0;
}