47 #define MAKE_CHECKBYTE(dev,stream,i) \  argument
48 	(stream << 1) | (~(i / (dev->n_streams * BYTES_PER_SAMPLE_USB)) & 1)
95 	int i;  in all_substreams_zero()  local
96 	for (i = 0; i < MAX_STREAMS; i++)  in all_substreams_zero()
97 		if (subs[i] != NULL)  in all_substreams_zero()
104 	int i, ret;  in stream_start()  local
118 	for (i = 0; i < N_URBS; i++) {  in stream_start()
119 		ret = usb_submit_urb(dev->data_urbs_in[i], GFP_ATOMIC);  in stream_start()
121 			log("unable to trigger read #%d! (ret %d)\n", i, ret);  in stream_start()
132 	int i;  in stream_stop()  local
140 	for (i = 0; i < N_URBS; i++) {  in stream_stop()
141 		usb_kill_urb(dev->data_urbs_in[i]);  in stream_stop()
142 		usb_kill_urb(dev->data_urbs_out[i]);  in stream_stop()
196 	int bytes_per_sample, bpp, ret, i;  in snd_usb_caiaq_pcm_prepare()  local
213 	for (i=0; i < ARRAY_SIZE(rates); i++)  in snd_usb_caiaq_pcm_prepare()
214 		if (runtime->rate == rates[i])  in snd_usb_caiaq_pcm_prepare()
215 			dev->pcm_info.rates = 1 << i;  in snd_usb_caiaq_pcm_prepare()
327 	int stream, i;  in read_in_urb_mode0()  local
332 	for (i = 0; i < iso->actual_length;) {  in read_in_urb_mode0()
333 		for (stream = 0; stream < dev->n_streams; stream++, i++) {  in read_in_urb_mode0()
340 					= usb_buf[i];  in read_in_urb_mode0()
356 	int stream, i;  in read_in_urb_mode2()  local
358 	for (i = 0; i < iso->actual_length;) {  in read_in_urb_mode2()
359 		if (i % (dev->n_streams * BYTES_PER_SAMPLE_USB) == 0) {  in read_in_urb_mode2()
362 			     stream++, i++) {  in read_in_urb_mode2()
366 				check_byte = MAKE_CHECKBYTE(dev, stream, i);  in read_in_urb_mode2()
368 				if ((usb_buf[i] & 0x3f) != check_byte)  in read_in_urb_mode2()
371 				if (usb_buf[i] & 0x80)  in read_in_urb_mode2()
377 		for (stream = 0; stream < dev->n_streams; stream++, i++) {  in read_in_urb_mode2()
384 					usb_buf[i];  in read_in_urb_mode2()
422 	int stream, i;  in fill_out_urb()  local
424 	for (i = 0; i < iso->length;) {  in fill_out_urb()
425 		for (stream = 0; stream < dev->n_streams; stream++, i++) {  in fill_out_urb()
431 				usb_buf[i] =  in fill_out_urb()
438 				usb_buf[i] = 0;  in fill_out_urb()
443 		    i % (dev->n_streams * BYTES_PER_SAMPLE_USB) ==   in fill_out_urb()
445 		    for (stream = 0; stream < dev->n_streams; stream++, i++)  in fill_out_urb()
446 		    	usb_buf[i] = MAKE_CHECKBYTE(dev, stream, i);  in fill_out_urb()
522 	int i, frame;  in alloc_urbs()  local
538 	for (i = 0; i < N_URBS; i++) {  in alloc_urbs()
539 		urbs[i] = usb_alloc_urb(FRAMES_PER_URB, GFP_KERNEL);  in alloc_urbs()
540 		if (!urbs[i]) {  in alloc_urbs()
546 		urbs[i]->transfer_buffer =   in alloc_urbs()
548 		if (!urbs[i]->transfer_buffer) {  in alloc_urbs()
556 				&urbs[i]->iso_frame_desc[frame];  in alloc_urbs()
562 		urbs[i]->dev = usb_dev;  in alloc_urbs()
563 		urbs[i]->pipe = pipe;  in alloc_urbs()
564 		urbs[i]->transfer_buffer_length = FRAMES_PER_URB   in alloc_urbs()
566 		urbs[i]->context = &dev->data_cb_info[i];  in alloc_urbs()
567 		urbs[i]->interval = 1;  in alloc_urbs()
568 		urbs[i]->transfer_flags = URB_ISO_ASAP;  in alloc_urbs()
569 		urbs[i]->number_of_packets = FRAMES_PER_URB;  in alloc_urbs()
570 		urbs[i]->complete = (dir == SNDRV_PCM_STREAM_CAPTURE) ?  in alloc_urbs()
580 	int i;  in free_urbs()  local
585 	for (i = 0; i < N_URBS; i++) {  in free_urbs()
586 		if (!urbs[i])  in free_urbs()
589 		usb_kill_urb(urbs[i]);  in free_urbs()
590 		kfree(urbs[i]->transfer_buffer);  in free_urbs()
591 		usb_free_urb(urbs[i]);  in free_urbs()
599 	int i, ret;  in snd_usb_caiaq_audio_init()  local
666 	for (i = 0; i < N_URBS; i++) {  in snd_usb_caiaq_audio_init()
667 		dev->data_cb_info[i].dev = dev;  in snd_usb_caiaq_audio_init()
668 		dev->data_cb_info[i].index = i;  in snd_usb_caiaq_audio_init()