43 #define MAKE_CHECKBYTE(cdev,stream,i) \  argument
44 	(stream << 1) | (~(i / (cdev->n_streams * BYTES_PER_SAMPLE_USB)) & 1)
69 	if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)  in activate_substream()
84 	if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)  in deactivate_substream()
215 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {  in snd_usb_caiaq_pcm_prepare()
328 	if (sub->stream == SNDRV_PCM_STREAM_PLAYBACK)  in snd_usb_caiaq_pcm_pointer()
357 	int stream, pb, *cnt;  in check_for_elapsed_periods()  local
360 	for (stream = 0; stream < cdev->n_streams; stream++) {  in check_for_elapsed_periods()
361 		sub = subs[stream];  in check_for_elapsed_periods()
366 		cnt = (sub->stream == SNDRV_PCM_STREAM_PLAYBACK) ?  in check_for_elapsed_periods()
367 					&cdev->period_out_count[stream] :  in check_for_elapsed_periods()
368 					&cdev->period_in_count[stream];  in check_for_elapsed_periods()
383 	int stream, i;  in read_in_urb_mode0()  local
389 		for (stream = 0; stream < cdev->n_streams; stream++, i++) {  in read_in_urb_mode0()
390 			sub = cdev->sub_capture[stream];  in read_in_urb_mode0()
395 				audio_buf[cdev->audio_in_buf_pos[stream]++]  in read_in_urb_mode0()
397 				cdev->period_in_count[stream]++;  in read_in_urb_mode0()
398 				if (cdev->audio_in_buf_pos[stream] == sz)  in read_in_urb_mode0()
399 					cdev->audio_in_buf_pos[stream] = 0;  in read_in_urb_mode0()
412 	int stream, i;  in read_in_urb_mode2()  local
416 			for (stream = 0;  in read_in_urb_mode2()
417 			     stream < cdev->n_streams;  in read_in_urb_mode2()
418 			     stream++, i++) {  in read_in_urb_mode2()
422 				check_byte = MAKE_CHECKBYTE(cdev, stream, i);  in read_in_urb_mode2()
433 		for (stream = 0; stream < cdev->n_streams; stream++, i++) {  in read_in_urb_mode2()
434 			sub = cdev->sub_capture[stream];  in read_in_urb_mode2()
442 				audio_buf[cdev->audio_in_buf_pos[stream]++] =  in read_in_urb_mode2()
444 				cdev->period_in_count[stream]++;  in read_in_urb_mode2()
445 				if (cdev->audio_in_buf_pos[stream] == sz)  in read_in_urb_mode2()
446 					cdev->audio_in_buf_pos[stream] = 0;  in read_in_urb_mode2()
458 	int stream, i;  in read_in_urb_mode3()  local
465 		for (stream = 0; stream < cdev->n_streams; stream++) {  in read_in_urb_mode3()
466 			struct snd_pcm_substream *sub = cdev->sub_capture[stream];  in read_in_urb_mode3()
480 						audio_buf[cdev->audio_in_buf_pos[stream]++] = usb_buf[i+n];  in read_in_urb_mode3()
482 						if (cdev->audio_in_buf_pos[stream] == sz)  in read_in_urb_mode3()
483 							cdev->audio_in_buf_pos[stream] = 0;  in read_in_urb_mode3()
486 					cdev->period_in_count[stream] += BYTES_PER_SAMPLE;  in read_in_urb_mode3()
491 				if (usb_buf[i] != ((stream << 1) | c) &&  in read_in_urb_mode3()
495 							 ((stream << 1) | c), usb_buf[i], c, stream, i);  in read_in_urb_mode3()
546 	int stream, i;  in fill_out_urb_mode_0()  local
549 		for (stream = 0; stream < cdev->n_streams; stream++, i++) {  in fill_out_urb_mode_0()
550 			sub = cdev->sub_playback[stream];  in fill_out_urb_mode_0()
556 					audio_buf[cdev->audio_out_buf_pos[stream]];  in fill_out_urb_mode_0()
557 				cdev->period_out_count[stream]++;  in fill_out_urb_mode_0()
558 				cdev->audio_out_buf_pos[stream]++;  in fill_out_urb_mode_0()
559 				if (cdev->audio_out_buf_pos[stream] == sz)  in fill_out_urb_mode_0()
560 					cdev->audio_out_buf_pos[stream] = 0;  in fill_out_urb_mode_0()
569 			for (stream = 0; stream < cdev->n_streams; stream++, i++)  in fill_out_urb_mode_0()
570 				usb_buf[i] = MAKE_CHECKBYTE(cdev, stream, i);  in fill_out_urb_mode_0()
579 	int stream, i;  in fill_out_urb_mode_3()  local
582 		for (stream = 0; stream < cdev->n_streams; stream++) {  in fill_out_urb_mode_3()
583 			struct snd_pcm_substream *sub = cdev->sub_playback[stream];  in fill_out_urb_mode_3()
596 						usb_buf[i+n] = audio_buf[cdev->audio_out_buf_pos[stream]++];  in fill_out_urb_mode_3()
598 						if (cdev->audio_out_buf_pos[stream] == sz)  in fill_out_urb_mode_3()
599 							cdev->audio_out_buf_pos[stream] = 0;  in fill_out_urb_mode_3()
606 					cdev->period_out_count[stream] += BYTES_PER_SAMPLE;  in fill_out_urb_mode_3()
611 				usb_buf[i++] = (stream << 1) | c;  in fill_out_urb_mode_3()