usb/line6/pcm.c

33 	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
35 	ucontrol->value.integer.value[0] = line6pcm->impulse_volume;
42 	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
46 	if (line6pcm->impulse_volume == value)
49 	line6pcm->impulse_volume = value;
51 		err = line6_pcm_acquire(line6pcm, LINE6_STREAM_IMPULSE, true);
53 			line6pcm->impulse_volume = 0;
57 		line6_pcm_release(line6pcm, LINE6_STREAM_IMPULSE);
76 	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
78 	ucontrol->value.integer.value[0] = line6pcm->impulse_period;
85 	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
88 	if (line6pcm->impulse_period == value)
91 	line6pcm->impulse_period = value;
98 static void line6_unlink_audio_urbs(struct snd_line6_pcm *line6pcm,
103 	for (i = 0; i < line6pcm->line6->iso_buffers; i++) {
114 static void line6_wait_clear_audio_urbs(struct snd_line6_pcm *line6pcm,
123 		for (i = 0; i < line6pcm->line6->iso_buffers; i++) {
133 		dev_err(line6pcm->line6->ifcdev,
138 get_stream(struct snd_line6_pcm *line6pcm, int direction)
141 		&line6pcm->out : &line6pcm->in;
145  * call this in line6pcm.state_mutex
147 static int line6_buffer_acquire(struct snd_line6_pcm *line6pcm,
152 			line6pcm->max_packet_size_out :
153 			line6pcm->max_packet_size_in;
158 			kmalloc(array3_size(line6pcm->line6->iso_buffers,
168  * call this in line6pcm.state_mutex
170 static void line6_buffer_release(struct snd_line6_pcm *line6pcm,
175 		line6_wait_clear_audio_urbs(line6pcm, pstr);
182 static int line6_stream_start(struct snd_line6_pcm *line6pcm, int direction,
186 	struct line6_pcm_stream *pstr = get_stream(line6pcm, direction);
195 			ret = line6_submit_audio_out_all_urbs(line6pcm);
197 			ret = line6_submit_audio_in_all_urbs(line6pcm);
207 static void line6_stream_stop(struct snd_line6_pcm *line6pcm, int direction,
211 	struct line6_pcm_stream *pstr = get_stream(line6pcm, direction);
217 		line6_unlink_audio_urbs(line6pcm, pstr);
220 			line6pcm->prev_fbuf = NULL;
221 			line6pcm->prev_fsize = 0;
230 	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
234 	clear_bit(LINE6_FLAG_PREPARED, &line6pcm->flags);
244 				(line6pcm->line6->properties->capabilities &
246 				err = line6_stream_start(line6pcm, SNDRV_PCM_STREAM_PLAYBACK,
251 			err = line6_stream_start(line6pcm, s->stream,
260 				(line6pcm->line6->properties->capabilities &
262 				line6_stream_stop(line6pcm, SNDRV_PCM_STREAM_PLAYBACK,
265 			line6_stream_stop(line6pcm, s->stream,
272 			set_bit(LINE6_FLAG_PAUSE_PLAYBACK, &line6pcm->flags);
278 			clear_bit(LINE6_FLAG_PAUSE_PLAYBACK, &line6pcm->flags);
292 	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
293 	struct line6_pcm_stream *pstr = get_stream(line6pcm, substream->stream);
301 int line6_pcm_acquire(struct snd_line6_pcm *line6pcm, int type, bool start)
307 	mutex_lock(&line6pcm->state_mutex);
309 		pstr = get_stream(line6pcm, dir);
310 		ret = line6_buffer_acquire(line6pcm, pstr, dir, type);
314 			line6_wait_clear_audio_urbs(line6pcm, pstr);
318 			ret = line6_stream_start(line6pcm, dir, type);
324 	mutex_unlock(&line6pcm->state_mutex);
326 		line6_pcm_release(line6pcm, type);
332 void line6_pcm_release(struct snd_line6_pcm *line6pcm, int type)
337 	mutex_lock(&line6pcm->state_mutex);
339 		line6_stream_stop(line6pcm, dir, type);
341 		pstr = get_stream(line6pcm, dir);
342 		line6_buffer_release(line6pcm, pstr, type);
344 	mutex_unlock(&line6pcm->state_mutex);
353 	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
354 	struct line6_pcm_stream *pstr = get_stream(line6pcm, substream->stream);
356 	mutex_lock(&line6pcm->state_mutex);
357 	ret = line6_buffer_acquire(line6pcm, pstr, substream->stream,
364 	mutex_unlock(&line6pcm->state_mutex);
371 	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
372 	struct line6_pcm_stream *pstr = get_stream(line6pcm, substream->stream);
374 	mutex_lock(&line6pcm->state_mutex);
375 	line6_buffer_release(line6pcm, pstr, LINE6_STREAM_PCM);
376 	mutex_unlock(&line6pcm->state_mutex);
397 	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
400 		ucontrol->value.integer.value[i] = line6pcm->volume_playback[i];
410 	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
413 		if (line6pcm->volume_playback[i] !=
415 			line6pcm->volume_playback[i] =
471 	struct snd_line6_pcm *line6pcm = snd_pcm_chip(pcm);
473 	cleanup_urbs(&line6pcm->out, line6pcm->line6->iso_buffers);
474 	cleanup_urbs(&line6pcm->in, line6pcm->line6->iso_buffers);
475 	kfree(line6pcm);
505 void line6_pcm_disconnect(struct snd_line6_pcm *line6pcm)
507 	line6_unlink_audio_urbs(line6pcm, &line6pcm->out);
508 	line6_unlink_audio_urbs(line6pcm, &line6pcm->in);
509 	line6_wait_clear_audio_urbs(line6pcm, &line6pcm->out);
510 	line6_wait_clear_audio_urbs(line6pcm, &line6pcm->in);
524 	struct snd_line6_pcm *line6pcm;
533 	line6pcm = kzalloc(sizeof(*line6pcm), GFP_KERNEL);
534 	if (!line6pcm)
537 	mutex_init(&line6pcm->state_mutex);
538 	line6pcm->pcm = pcm;
539 	line6pcm->properties = properties;
540 	line6pcm->volume_playback[0] = line6pcm->volume_playback[1] = 255;
541 	line6pcm->volume_monitor = 255;
542 	line6pcm->line6 = line6;
544 	spin_lock_init(&line6pcm->out.lock);
545 	spin_lock_init(&line6pcm->in.lock);
546 	line6pcm->impulse_period = LINE6_IMPULSE_DEFAULT_PERIOD;
548 	line6->line6pcm = line6pcm;
550 	pcm->private_data = line6pcm;
553 	line6pcm->max_packet_size_in =
556 	line6pcm->max_packet_size_out =
559 	if (!line6pcm->max_packet_size_in || !line6pcm->max_packet_size_out) {
560 		dev_err(line6pcm->line6->ifcdev,
565 	err = line6_create_audio_out_urbs(line6pcm);
569 	err = line6_create_audio_in_urbs(line6pcm);
576 				  snd_ctl_new1(&line6_controls[i], line6pcm));
588 	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
589 	struct line6_pcm_stream *pstr = get_stream(line6pcm, substream->stream);
591 	mutex_lock(&line6pcm->state_mutex);
593 		line6_wait_clear_audio_urbs(line6pcm, pstr);
595 	if (!test_and_set_bit(LINE6_FLAG_PREPARED, &line6pcm->flags)) {
596 		line6pcm->out.count = 0;
597 		line6pcm->out.pos = 0;
598 		line6pcm->out.pos_done = 0;
599 		line6pcm->out.bytes = 0;
600 		line6pcm->in.count = 0;
601 		line6pcm->in.pos_done = 0;
602 		line6pcm->in.bytes = 0;
605 	mutex_unlock(&line6pcm->state_mutex);