27 static void saa7164_vbi_configure(struct saa7164_port *port)  in saa7164_vbi_configure()  argument
29 	struct saa7164_dev *dev = port->dev;  in saa7164_vbi_configure()
32 	port->vbi_params.width = port->enc_port->width;  in saa7164_vbi_configure()
33 	port->vbi_params.height = port->enc_port->height;  in saa7164_vbi_configure()
34 	port->vbi_params.is_50hz =  in saa7164_vbi_configure()
35 		(port->enc_port->encodernorm.id & V4L2_STD_625_50) != 0;  in saa7164_vbi_configure()
38 	saa7164_api_initialize_dif(port);  in saa7164_vbi_configure()
42 static int saa7164_vbi_buffers_dealloc(struct saa7164_port *port)  in saa7164_vbi_buffers_dealloc()  argument
45 	struct saa7164_dev *dev = port->dev;  in saa7164_vbi_buffers_dealloc()
50 	mutex_lock(&port->dmaqueue_lock);  in saa7164_vbi_buffers_dealloc()
52 	dprintk(DBGLVL_VBI, "%s(port=%d) dmaqueue\n", __func__, port->nr);  in saa7164_vbi_buffers_dealloc()
53 	list_for_each_safe(c, n, &port->dmaqueue.list) {  in saa7164_vbi_buffers_dealloc()
59 	dprintk(DBGLVL_VBI, "%s(port=%d) used\n", __func__, port->nr);  in saa7164_vbi_buffers_dealloc()
60 	list_for_each_safe(p, q, &port->list_buf_used.list) {  in saa7164_vbi_buffers_dealloc()
66 	dprintk(DBGLVL_VBI, "%s(port=%d) free\n", __func__, port->nr);  in saa7164_vbi_buffers_dealloc()
67 	list_for_each_safe(l, v, &port->list_buf_free.list) {  in saa7164_vbi_buffers_dealloc()
73 	mutex_unlock(&port->dmaqueue_lock);  in saa7164_vbi_buffers_dealloc()
74 	dprintk(DBGLVL_VBI, "%s(port=%d) done\n", __func__, port->nr);  in saa7164_vbi_buffers_dealloc()
80 static int saa7164_vbi_buffers_alloc(struct saa7164_port *port)  in saa7164_vbi_buffers_alloc()  argument
82 	struct saa7164_dev *dev = port->dev;  in saa7164_vbi_buffers_alloc()
85 	struct tmHWStreamParameters *params = &port->hw_streamingparams;  in saa7164_vbi_buffers_alloc()
104 	params->numpagetableentries = port->hwcfg.buffercount;  in saa7164_vbi_buffers_alloc()
107 	for (i = 0; i < port->hwcfg.buffercount; i++) {  in saa7164_vbi_buffers_alloc()
108 		buf = saa7164_buffer_alloc(port,  in saa7164_vbi_buffers_alloc()
120 			mutex_lock(&port->dmaqueue_lock);  in saa7164_vbi_buffers_alloc()
121 			list_add_tail(&buf->list, &port->dmaqueue.list);  in saa7164_vbi_buffers_alloc()
122 			mutex_unlock(&port->dmaqueue_lock);  in saa7164_vbi_buffers_alloc()
141 			mutex_lock(&port->dmaqueue_lock);  in saa7164_vbi_buffers_alloc()
142 			list_add_tail(&ubuf->list, &port->list_buf_free.list);  in saa7164_vbi_buffers_alloc()
143 			mutex_unlock(&port->dmaqueue_lock);  in saa7164_vbi_buffers_alloc()
155 static int saa7164_vbi_initialize(struct saa7164_port *port)  in saa7164_vbi_initialize()  argument
157 	saa7164_vbi_configure(port);  in saa7164_vbi_initialize()
166 	return saa7164_s_std(fh->port->enc_port, id);  in vidioc_s_std()
173 	return saa7164_g_std(fh->port->enc_port, id);  in vidioc_g_std()
180 	return saa7164_g_input(fh->port->enc_port, i);  in vidioc_g_input()
187 	return saa7164_s_input(fh->port->enc_port, i);  in vidioc_s_input()
195 	return saa7164_g_frequency(fh->port->enc_port, f);  in vidioc_g_frequency()
202 	int ret = saa7164_s_frequency(fh->port->enc_port, f);  in vidioc_s_frequency()
205 		saa7164_vbi_initialize(fh->port);  in vidioc_s_frequency()
213 	struct saa7164_port *port = fh->port;  in vidioc_querycap()  local
214 	struct saa7164_dev *dev = port->dev;  in vidioc_querycap()
233 static int saa7164_vbi_stop_port(struct saa7164_port *port)  in saa7164_vbi_stop_port()  argument
235 	struct saa7164_dev *dev = port->dev;  in saa7164_vbi_stop_port()
238 	ret = saa7164_api_transition_port(port, SAA_DMASTATE_STOP);  in saa7164_vbi_stop_port()
251 static int saa7164_vbi_acquire_port(struct saa7164_port *port)  in saa7164_vbi_acquire_port()  argument
253 	struct saa7164_dev *dev = port->dev;  in saa7164_vbi_acquire_port()
256 	ret = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);  in saa7164_vbi_acquire_port()
269 static int saa7164_vbi_pause_port(struct saa7164_port *port)  in saa7164_vbi_pause_port()  argument
271 	struct saa7164_dev *dev = port->dev;  in saa7164_vbi_pause_port()
274 	ret = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);  in saa7164_vbi_pause_port()
293 static int saa7164_vbi_stop_streaming(struct saa7164_port *port)  in saa7164_vbi_stop_streaming()  argument
295 	struct saa7164_dev *dev = port->dev;  in saa7164_vbi_stop_streaming()
301 	dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr);  in saa7164_vbi_stop_streaming()
303 	ret = saa7164_vbi_pause_port(port);  in saa7164_vbi_stop_streaming()
304 	ret = saa7164_vbi_acquire_port(port);  in saa7164_vbi_stop_streaming()
305 	ret = saa7164_vbi_stop_port(port);  in saa7164_vbi_stop_streaming()
308 		port->nr);  in saa7164_vbi_stop_streaming()
311 	mutex_lock(&port->dmaqueue_lock);  in saa7164_vbi_stop_streaming()
314 	list_for_each_safe(c, n, &port->dmaqueue.list) {  in saa7164_vbi_stop_streaming()
320 	list_for_each_safe(c, n, &port->list_buf_used.list) {  in saa7164_vbi_stop_streaming()
323 		list_move_tail(&ubuf->list, &port->list_buf_free.list);  in saa7164_vbi_stop_streaming()
326 	mutex_unlock(&port->dmaqueue_lock);  in saa7164_vbi_stop_streaming()
329 	saa7164_vbi_buffers_dealloc(port);  in saa7164_vbi_stop_streaming()
331 	dprintk(DBGLVL_VBI, "%s(port=%d) Released\n", __func__, port->nr);  in saa7164_vbi_stop_streaming()
336 static int saa7164_vbi_start_streaming(struct saa7164_port *port)  in saa7164_vbi_start_streaming()  argument
338 	struct saa7164_dev *dev = port->dev;  in saa7164_vbi_start_streaming()
341 	dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr);  in saa7164_vbi_start_streaming()
343 	port->done_first_interrupt = 0;  in saa7164_vbi_start_streaming()
349 	saa7164_vbi_buffers_alloc(port);  in saa7164_vbi_start_streaming()
353 	saa7164_api_set_encoder(port);  in saa7164_vbi_start_streaming()
354 	saa7164_api_get_encoder(port);  in saa7164_vbi_start_streaming()
358 	saa7164_buffer_cfg_port(port);  in saa7164_vbi_start_streaming()
361 	if (saa7164_api_set_vbi_format(port) != SAA_OK) {  in saa7164_vbi_start_streaming()
368 	result = saa7164_api_transition_port(port, SAA_DMASTATE_ACQUIRE);  in saa7164_vbi_start_streaming()
379 	result = saa7164_api_transition_port(port, SAA_DMASTATE_PAUSE);  in saa7164_vbi_start_streaming()
385 		result = saa7164_vbi_stop_port(port);  in saa7164_vbi_start_streaming()
397 	result = saa7164_api_transition_port(port, SAA_DMASTATE_RUN);  in saa7164_vbi_start_streaming()
403 		result = saa7164_vbi_acquire_port(port);  in saa7164_vbi_start_streaming()
404 		result = saa7164_vbi_stop_port(port);  in saa7164_vbi_start_streaming()
438 	struct saa7164_port *port;  in fops_open()  local
441 	port = (struct saa7164_port *)video_get_drvdata(video_devdata(file));  in fops_open()
442 	if (!port)  in fops_open()
445 	dev = port->dev;  in fops_open()
454 	fh->port = port;  in fops_open()
465 	struct saa7164_port *port = fh->port;  in fops_release()  local
466 	struct saa7164_dev *dev = port->dev;  in fops_release()
472 		if (atomic_dec_return(&port->v4l_reader_count) == 0) {  in fops_release()
474 			saa7164_vbi_stop_streaming(port);  in fops_release()
486 saa7164_user_buffer *saa7164_vbi_next_buf(struct saa7164_port *port)  in saa7164_vbi_next_buf()  argument
489 	struct saa7164_dev *dev = port->dev;  in saa7164_vbi_next_buf()
492 	mutex_lock(&port->dmaqueue_lock);  in saa7164_vbi_next_buf()
493 	if (!list_empty(&port->list_buf_used.list)) {  in saa7164_vbi_next_buf()
494 		ubuf = list_first_entry(&port->list_buf_used.list,  in saa7164_vbi_next_buf()
507 	mutex_unlock(&port->dmaqueue_lock);  in saa7164_vbi_next_buf()
518 	struct saa7164_port *port = fh->port;  in fops_read()  local
520 	struct saa7164_dev *dev = port->dev;  in fops_read()
525 	port->last_read_msecs_diff = port->last_read_msecs;  in fops_read()
526 	port->last_read_msecs = jiffies_to_msecs(jiffies);  in fops_read()
527 	port->last_read_msecs_diff = port->last_read_msecs -  in fops_read()
528 		port->last_read_msecs_diff;  in fops_read()
530 	saa7164_histogram_update(&port->read_interval,  in fops_read()
531 		port->last_read_msecs_diff);  in fops_read()
539 		if (atomic_inc_return(&port->v4l_reader_count) == 1) {  in fops_read()
541 			if (saa7164_vbi_initialize(port) < 0) {  in fops_read()
546 			saa7164_vbi_start_streaming(port);  in fops_read()
553 		if (wait_event_interruptible(port->wait_read,  in fops_read()
554 			saa7164_vbi_next_buf(port))) {  in fops_read()
561 	ubuf = saa7164_vbi_next_buf(port);  in fops_read()
599 			mutex_lock(&port->dmaqueue_lock);  in fops_read()
600 			list_move_tail(&ubuf->list, &port->list_buf_free.list);  in fops_read()
601 			mutex_unlock(&port->dmaqueue_lock);  in fops_read()
605 				if (wait_event_interruptible(port->wait_read,  in fops_read()
606 					saa7164_vbi_next_buf(port))) {  in fops_read()
610 			ubuf = saa7164_vbi_next_buf(port);  in fops_read()
625 	struct saa7164_port *port = fh->port;  in fops_poll()  local
628 	port->last_poll_msecs_diff = port->last_poll_msecs;  in fops_poll()
629 	port->last_poll_msecs = jiffies_to_msecs(jiffies);  in fops_poll()
630 	port->last_poll_msecs_diff = port->last_poll_msecs -  in fops_poll()
631 		port->last_poll_msecs_diff;  in fops_poll()
633 	saa7164_histogram_update(&port->poll_interval,  in fops_poll()
634 		port->last_poll_msecs_diff);  in fops_poll()
636 	if (!video_is_registered(port->v4l_device))  in fops_poll()
640 		if (atomic_inc_return(&port->v4l_reader_count) == 1) {  in fops_poll()
641 			if (saa7164_vbi_initialize(port) < 0)  in fops_poll()
643 			saa7164_vbi_start_streaming(port);  in fops_poll()
650 		if (wait_event_interruptible(port->wait_read,  in fops_poll()
651 			saa7164_vbi_next_buf(port))) {  in fops_poll()
657 	if (!list_empty(&port->list_buf_used.list))  in fops_poll()
696 	struct saa7164_port *port,  in saa7164_vbi_alloc()  argument
702 	struct saa7164_dev *dev = port->dev;  in saa7164_vbi_alloc()
719 int saa7164_vbi_register(struct saa7164_port *port)  in saa7164_vbi_register()  argument
721 	struct saa7164_dev *dev = port->dev;  in saa7164_vbi_register()
726 	if (port->type != SAA7164_MPEG_VBI)  in saa7164_vbi_register()
730 	if (port->hwcfg.BARLocation == 0) {  in saa7164_vbi_register()
741 	port->v4l_device = saa7164_vbi_alloc(port,  in saa7164_vbi_register()
744 	if (!port->v4l_device) {  in saa7164_vbi_register()
751 	port->enc_port = &dev->ports[port->nr - 2];  in saa7164_vbi_register()
752 	video_set_drvdata(port->v4l_device, port);  in saa7164_vbi_register()
753 	result = video_register_device(port->v4l_device,  in saa7164_vbi_register()
765 		dev->name, port->v4l_device->num);  in saa7164_vbi_register()
774 void saa7164_vbi_unregister(struct saa7164_port *port)  in saa7164_vbi_unregister()  argument
776 	struct saa7164_dev *dev = port->dev;  in saa7164_vbi_unregister()
778 	dprintk(DBGLVL_VBI, "%s(port=%d)\n", __func__, port->nr);  in saa7164_vbi_unregister()
780 	if (port->type != SAA7164_MPEG_VBI)  in saa7164_vbi_unregister()
783 	if (port->v4l_device) {  in saa7164_vbi_unregister()
784 		if (port->v4l_device->minor != -1)  in saa7164_vbi_unregister()
785 			video_unregister_device(port->v4l_device);  in saa7164_vbi_unregister()
787 			video_device_release(port->v4l_device);  in saa7164_vbi_unregister()
789 		port->v4l_device = NULL;  in saa7164_vbi_unregister()