usb/usx2y/usbusx2yaudio.c

28 #include "usx2y.h"
65 	struct usx2ydev	*usx2y = subs->usx2y;
75 		len = urb->iso_frame_desc[i].actual_length / usx2y->stride;
84 			blen = cnt * usx2y->stride;
85 			memcpy(runtime->dma_area + hwptr_done * usx2y->stride, cp, blen);
86 			memcpy(runtime->dma_area, cp + blen, len * usx2y->stride - blen);
88 			memcpy(runtime->dma_area + hwptr_done * usx2y->stride, cp,
89 			       len * usx2y->stride);
121 	struct usx2ydev *usx2y = subs->usx2y;
128 		counts = cap_urb->iso_frame_desc[pack].actual_length / usx2y->stride;
149 			       subs->hwptr * usx2y->stride, len * usx2y->stride);
150 			memcpy(subs->tmpbuf + len * usx2y->stride,
151 			       runtime->dma_area, (count - len) * usx2y->stride);
156 			urb->transfer_buffer = runtime->dma_area + subs->hwptr * usx2y->stride;
164 	urb->transfer_buffer_length = count * usx2y->stride;
176 	int		len = urb->actual_length / subs->usx2y->stride;
196 	urb->dev = subs->usx2y->dev; /* we need to set this at each time */
258 static void usx2y_clients_stop(struct usx2ydev *usx2y)
265 		subs = usx2y->subs[s];
272 		subs = usx2y->subs[s];
284 	usx2y->prepare_subs = NULL;
285 	wake_up(&usx2y->prepare_wait_queue);
288 static void usx2y_error_urb_status(struct usx2ydev *usx2y,
293 	usx2y_clients_stop(usx2y);
299 	struct usx2ydev *usx2y = subs->usx2y;
304 			    usb_get_current_frame_number(usx2y->dev),
310 		usx2y_error_urb_status(usx2y, subs, urb);
316 	capsubs = usx2y->subs[SNDRV_PCM_STREAM_CAPTURE];
317 	playbacksubs = usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK];
324 			usx2y->wait_iso_frame += nr_of_packs();
327 			usx2y_clients_stop(usx2y);
332 static void usx2y_urbs_set_complete(struct usx2ydev *usx2y,
340 		subs = usx2y->subs[s];
351 static void usx2y_subs_startup_finish(struct usx2ydev *usx2y)
353 	usx2y_urbs_set_complete(usx2y, i_usx2y_urb_complete);
354 	usx2y->prepare_subs = NULL;
360 	struct usx2ydev *usx2y = subs->usx2y;
361 	struct snd_usx2y_substream *prepare_subs = usx2y->prepare_subs;
365 			usx2y_subs_startup_finish(usx2y);
367 			wake_up(&usx2y->prepare_wait_queue);
405 				  subs != subs->usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK]);
418 	int is_playback = subs == subs->usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK];
419 	struct usb_device *dev = subs->usx2y->dev;
467 	struct usx2ydev *usx2y = subs->usx2y;
469 	usx2y->prepare_subs = subs;
472 	usx2y_urbs_set_complete(usx2y, i_usx2y_subs_startup);
478 	struct usx2ydev *usx2y = subs->usx2y;
487 		struct snd_usx2y_substream *subs = usx2y->subs[i];
500 			urb->dev = usx2y->dev;
513 					usx2y->wait_iso_frame = urb->start_frame;
522 	wait_event(usx2y->prepare_wait_queue, !usx2y->prepare_subs);
528 		usx2y_subs_startup_finish(usx2y);
529 		usx2y_clients_stop(usx2y);	// something is completely wrong > stop everything
555 		    atomic_read(&subs->usx2y->subs[SNDRV_PCM_STREAM_CAPTURE]->state) >= STATE_PREPARED) {
661 	struct usx2ydev *usx2y = urb->context;
665 	if (!--usx2y->us04->len)
666 		wake_up(&usx2y->in04_wait_queue);
669 static int usx2y_rate_set(struct usx2ydev *usx2y, int rate)
677 	if (usx2y->rate != rate) {
699 			usb_fill_bulk_urb(us->urb[i], usx2y->dev, usb_sndbulkpipe(usx2y->dev, 4),
700 					  usbdata + i, 2, i_usx2y_04int, usx2y);
706 		usx2y->us04 =	us;
707 		wait_event_timeout(usx2y->in04_wait_queue, !us->len, HZ);
708 		usx2y->us04 =	NULL;
725 			usx2y->us04 = NULL;
729 				usx2y->rate = rate;
736 static int usx2y_format_set(struct usx2ydev *usx2y, snd_pcm_format_t format)
743 		usx2y->stride = 6;
746 		usx2y->stride = 4;
748 	list_for_each(p, &usx2y->midi_list) {
751 	usb_kill_urb(usx2y->in04_urb);
752 	err = usb_set_interface(usx2y->dev, 0, alternate);
757 	usx2y->in04_urb->dev = usx2y->dev;
758 	err = usb_submit_urb(usx2y->in04_urb, GFP_KERNEL);
759 	list_for_each(p, &usx2y->midi_list) {
762 	usx2y->format = format;
763 	usx2y->rate = 0;
775 	struct usx2ydev	*dev = usx2y(card);
780 	mutex_lock(&usx2y(card)->pcm_mutex);
782 	/* all pcm substreams off one usx2y have to operate at the same
803 	mutex_unlock(&usx2y(card)->pcm_mutex);
816 	mutex_lock(&subs->usx2y->pcm_mutex);
820 		cap_subs = subs->usx2y->subs[SNDRV_PCM_STREAM_CAPTURE];
830 		playback_subs = subs->usx2y->subs[SNDRV_PCM_STREAM_PLAYBACK];
836 	mutex_unlock(&subs->usx2y->pcm_mutex);
849 	struct usx2ydev *usx2y = subs->usx2y;
850 	struct snd_usx2y_substream *capsubs = subs->usx2y->subs[SNDRV_PCM_STREAM_CAPTURE];
855 	mutex_lock(&usx2y->pcm_mutex);
860 		if (usx2y->format != runtime->format) {
861 			err = usx2y_format_set(usx2y, runtime->format);
865 		if (usx2y->rate != runtime->rate) {
866 			err = usx2y_rate_set(usx2y, runtime->rate);
880 	mutex_unlock(&usx2y->pcm_mutex);
910 	if (subs->usx2y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS)
966 		usx2y(card)->subs + 2 * usx2y(card)->pcm_devs;
974 		usx2y_substream[i]->usx2y = usx2y(card);
981 	err = snd_pcm_new(card, NAME_ALLCAPS" Audio", usx2y(card)->pcm_devs,
997 	sprintf(pcm->name, NAME_ALLCAPS" Audio #%d", usx2y(card)->pcm_devs);
1010 	usx2y(card)->pcm_devs++;
1025 	if (le16_to_cpu(usx2y(card)->dev->descriptor.idProduct) == USB_ID_US428) {
1030 	if (le16_to_cpu(usx2y(card)->dev->descriptor.idProduct) != USB_ID_US122)
1031 		err = usx2y_rate_set(usx2y(card), 44100);	// Lets us428 recognize output-volume settings, disturbs us122.