64 static int em28xx_deinit_isoc_audio(struct em28xx *dev)  in em28xx_deinit_isoc_audio()  argument
69 	for (i = 0; i < dev->adev.num_urb; i++) {  in em28xx_deinit_isoc_audio()
70 		struct urb *urb = dev->adev.urb[i];  in em28xx_deinit_isoc_audio()
83 	struct em28xx            *dev = urb->context;  in em28xx_audio_isocirq()  local
93 	if (dev->disconnected) {  in em28xx_audio_isocirq()
95 		atomic_set(&dev->adev.stream_started, 0);  in em28xx_audio_isocirq()
112 	if (atomic_read(&dev->adev.stream_started) == 0)  in em28xx_audio_isocirq()
115 	if (dev->adev.capture_pcm_substream) {  in em28xx_audio_isocirq()
116 		substream = dev->adev.capture_pcm_substream;  in em28xx_audio_isocirq()
129 			oldptr = dev->adev.hwptr_done_capture;  in em28xx_audio_isocirq()
144 			dev->adev.hwptr_done_capture += length;  in em28xx_audio_isocirq()
145 			if (dev->adev.hwptr_done_capture >=  in em28xx_audio_isocirq()
147 				dev->adev.hwptr_done_capture -=  in em28xx_audio_isocirq()
150 			dev->adev.capture_transfer_done += length;  in em28xx_audio_isocirq()
151 			if (dev->adev.capture_transfer_done >=  in em28xx_audio_isocirq()
153 				dev->adev.capture_transfer_done -=  in em28xx_audio_isocirq()
172 static int em28xx_init_audio_isoc(struct em28xx *dev)  in em28xx_init_audio_isoc()  argument
179 	for (i = 0; i < dev->adev.num_urb; i++) {  in em28xx_init_audio_isoc()
180 		memset(dev->adev.transfer_buffer[i], 0x80,  in em28xx_init_audio_isoc()
181 		       dev->adev.urb[i]->transfer_buffer_length);  in em28xx_init_audio_isoc()
183 		errCode = usb_submit_urb(dev->adev.urb[i], GFP_ATOMIC);  in em28xx_init_audio_isoc()
187 			em28xx_deinit_isoc_audio(dev);  in em28xx_init_audio_isoc()
188 			atomic_set(&dev->adev.stream_started, 0);  in em28xx_init_audio_isoc()
252 	struct em28xx *dev = snd_pcm_substream_chip(substream);  in snd_em28xx_capture_open()  local
256 	if (!dev) {  in snd_em28xx_capture_open()
262 	if (dev->disconnected)  in snd_em28xx_capture_open()
269 		if (!mutex_trylock(&dev->lock))  in snd_em28xx_capture_open()
272 		mutex_lock(&dev->lock);  in snd_em28xx_capture_open()
276 	if (dev->adev.users == 0) {  in snd_em28xx_capture_open()
277 		if (dev->alt == 0 || dev->is_audio_only) {  in snd_em28xx_capture_open()
278 			if (dev->is_audio_only)  in snd_em28xx_capture_open()
280 				dev->alt = 1;  in snd_em28xx_capture_open()
283 				dev->alt = 7;  in snd_em28xx_capture_open()
294 				dev->ifnum, dev->alt);  in snd_em28xx_capture_open()
295 			usb_set_interface(dev->udev, dev->ifnum, dev->alt);  in snd_em28xx_capture_open()
299 		dev->mute = 0;  in snd_em28xx_capture_open()
300 		ret = em28xx_audio_analog_set(dev);  in snd_em28xx_capture_open()
305 	kref_get(&dev->ref);  in snd_em28xx_capture_open()
306 	dev->adev.users++;  in snd_em28xx_capture_open()
307 	mutex_unlock(&dev->lock);  in snd_em28xx_capture_open()
312 				     dev->adev.period * 95 / 100,  in snd_em28xx_capture_open()
313 				     dev->adev.period * 105 / 100);  in snd_em28xx_capture_open()
315 	dev->adev.capture_pcm_substream = substream;  in snd_em28xx_capture_open()
319 	mutex_unlock(&dev->lock);  in snd_em28xx_capture_open()
327 	struct em28xx *dev = snd_pcm_substream_chip(substream);  in snd_em28xx_pcm_close()  local
331 	dev->mute = 1;  in snd_em28xx_pcm_close()
332 	mutex_lock(&dev->lock);  in snd_em28xx_pcm_close()
333 	dev->adev.users--;  in snd_em28xx_pcm_close()
334 	if (atomic_read(&dev->adev.stream_started) > 0) {  in snd_em28xx_pcm_close()
335 		atomic_set(&dev->adev.stream_started, 0);  in snd_em28xx_pcm_close()
336 		schedule_work(&dev->adev.wq_trigger);  in snd_em28xx_pcm_close()
339 	em28xx_audio_analog_set(dev);  in snd_em28xx_pcm_close()
345 	mutex_unlock(&dev->lock);  in snd_em28xx_pcm_close()
346 	kref_put(&dev->ref, em28xx_free_device);  in snd_em28xx_pcm_close()
355 	struct em28xx *dev = snd_pcm_substream_chip(substream);  in snd_em28xx_hw_capture_params()  local
357 	if (dev->disconnected)  in snd_em28xx_hw_capture_params()
382 	struct em28xx *dev = snd_pcm_substream_chip(substream);  in snd_em28xx_hw_capture_free()  local
383 	struct em28xx_audio *adev = &dev->adev;  in snd_em28xx_hw_capture_free()
397 	struct em28xx *dev = snd_pcm_substream_chip(substream);  in snd_em28xx_prepare()  local
399 	if (dev->disconnected)  in snd_em28xx_prepare()
402 	dev->adev.hwptr_done_capture = 0;  in snd_em28xx_prepare()
403 	dev->adev.capture_transfer_done = 0;  in snd_em28xx_prepare()
412 	struct em28xx *dev = container_of(adev, struct em28xx, adev);  in audio_trigger()  local
416 		em28xx_init_audio_isoc(dev);  in audio_trigger()
419 		em28xx_deinit_isoc_audio(dev);  in audio_trigger()
426 	struct em28xx *dev = snd_pcm_substream_chip(substream);  in snd_em28xx_capture_trigger()  local
429 	if (dev->disconnected)  in snd_em28xx_capture_trigger()
436 		atomic_set(&dev->adev.stream_started, 1);  in snd_em28xx_capture_trigger()
441 		atomic_set(&dev->adev.stream_started, 0);  in snd_em28xx_capture_trigger()
446 	schedule_work(&dev->adev.wq_trigger);  in snd_em28xx_capture_trigger()
454 	struct em28xx *dev;  in snd_em28xx_capture_pointer()  local
457 	dev = snd_pcm_substream_chip(substream);  in snd_em28xx_capture_pointer()
458 	if (dev->disconnected)  in snd_em28xx_capture_pointer()
461 	spin_lock_irqsave(&dev->adev.slock, flags);  in snd_em28xx_capture_pointer()
462 	hwptr_done = dev->adev.hwptr_done_capture;  in snd_em28xx_capture_pointer()
463 	spin_unlock_irqrestore(&dev->adev.slock, flags);  in snd_em28xx_capture_pointer()
482 	struct em28xx *dev = snd_kcontrol_chip(kcontrol);  in em28xx_vol_info()  local
484 	if (dev->disconnected)  in em28xx_vol_info()
498 	struct em28xx *dev = snd_kcontrol_chip(kcontrol);  in em28xx_vol_put()  local
499 	struct snd_pcm_substream *substream = dev->adev.capture_pcm_substream;  in em28xx_vol_put()
505 	if (dev->disconnected)  in em28xx_vol_put()
511 		if (!mutex_trylock(&dev->lock))  in em28xx_vol_put()
514 		mutex_lock(&dev->lock);  in em28xx_vol_put()
515 	rc = em28xx_read_ac97(dev, kcontrol->private_value);  in em28xx_vol_put()
521 	rc = em28xx_write_ac97(dev, kcontrol->private_value, val);  in em28xx_vol_put()
531 	mutex_unlock(&dev->lock);  in em28xx_vol_put()
538 	struct em28xx *dev = snd_kcontrol_chip(kcontrol);  in em28xx_vol_get()  local
539 	struct snd_pcm_substream *substream = dev->adev.capture_pcm_substream;  in em28xx_vol_get()
543 	if (dev->disconnected)  in em28xx_vol_get()
549 		if (!mutex_trylock(&dev->lock))  in em28xx_vol_get()
552 		mutex_lock(&dev->lock);  in em28xx_vol_get()
553 	val = em28xx_read_ac97(dev, kcontrol->private_value);  in em28xx_vol_get()
554 	mutex_unlock(&dev->lock);  in em28xx_vol_get()
572 	struct em28xx *dev = snd_kcontrol_chip(kcontrol);  in em28xx_vol_put_mute()  local
574 	struct snd_pcm_substream *substream = dev->adev.capture_pcm_substream;  in em28xx_vol_put_mute()
578 	if (dev->disconnected)  in em28xx_vol_put_mute()
584 		if (!mutex_trylock(&dev->lock))  in em28xx_vol_put_mute()
587 		mutex_lock(&dev->lock);  in em28xx_vol_put_mute()
588 	rc = em28xx_read_ac97(dev, kcontrol->private_value);  in em28xx_vol_put_mute()
597 	rc = em28xx_write_ac97(dev, kcontrol->private_value, rc);  in em28xx_vol_put_mute()
607 	mutex_unlock(&dev->lock);  in em28xx_vol_put_mute()
614 	struct em28xx *dev = snd_kcontrol_chip(kcontrol);  in em28xx_vol_get_mute()  local
615 	struct snd_pcm_substream *substream = dev->adev.capture_pcm_substream;  in em28xx_vol_get_mute()
619 	if (dev->disconnected)  in em28xx_vol_get_mute()
625 		if (!mutex_trylock(&dev->lock))  in em28xx_vol_get_mute()
628 		mutex_lock(&dev->lock);  in em28xx_vol_get_mute()
629 	val = em28xx_read_ac97(dev, kcontrol->private_value);  in em28xx_vol_get_mute()
630 	mutex_unlock(&dev->lock);  in em28xx_vol_get_mute()
649 static int em28xx_cvol_new(struct snd_card *card, struct em28xx *dev,  in em28xx_cvol_new()  argument
667 	kctl = snd_ctl_new1(&tmp, dev);  in em28xx_cvol_new()
685 	kctl = snd_ctl_new1(&tmp, dev);  in em28xx_cvol_new()
710 static void em28xx_audio_free_urb(struct em28xx *dev)  in em28xx_audio_free_urb()  argument
714 	for (i = 0; i < dev->adev.num_urb; i++) {  in em28xx_audio_free_urb()
715 		struct urb *urb = dev->adev.urb[i];  in em28xx_audio_free_urb()
720 		usb_free_coherent(dev->udev, urb->transfer_buffer_length,  in em28xx_audio_free_urb()
721 				  dev->adev.transfer_buffer[i],  in em28xx_audio_free_urb()
726 	kfree(dev->adev.urb);  in em28xx_audio_free_urb()
727 	kfree(dev->adev.transfer_buffer);  in em28xx_audio_free_urb()
728 	dev->adev.num_urb = 0;  in em28xx_audio_free_urb()
743 static int em28xx_audio_urb_init(struct em28xx *dev)  in em28xx_audio_urb_init()  argument
751 	if (dev->ifnum)  in em28xx_audio_urb_init()
756 	intf = usb_ifnum_to_if(dev->udev, dev->ifnum);  in em28xx_audio_urb_init()
760 			      dev->ifnum, alt);  in em28xx_audio_urb_init()
779 	ep_size = em28xx_audio_ep_packet_size(dev->udev, ep);  in em28xx_audio_urb_init()
783 		    EM28XX_EP_AUDIO, usb_speed_string(dev->udev->speed),  in em28xx_audio_urb_init()
784 		     dev->ifnum, alt,  in em28xx_audio_urb_init()
827 	dev->adev.period = urb_size * npackets;  in em28xx_audio_urb_init()
831 	dev->adev.transfer_buffer = kcalloc(num_urb,  in em28xx_audio_urb_init()
832 					    sizeof(*dev->adev.transfer_buffer),  in em28xx_audio_urb_init()
834 	if (!dev->adev.transfer_buffer) {  in em28xx_audio_urb_init()
838 	dev->adev.urb = kcalloc(num_urb, sizeof(*dev->adev.urb), GFP_ATOMIC);  in em28xx_audio_urb_init()
839 	if (!dev->adev.urb) {  in em28xx_audio_urb_init()
840 		kfree(dev->adev.transfer_buffer);  in em28xx_audio_urb_init()
845 	dev->adev.num_urb = num_urb;  in em28xx_audio_urb_init()
854 			em28xx_audio_free_urb(dev);  in em28xx_audio_urb_init()
857 		dev->adev.urb[i] = urb;  in em28xx_audio_urb_init()
859 		buf = usb_alloc_coherent(dev->udev, npackets * ep_size, GFP_ATOMIC,  in em28xx_audio_urb_init()
863 			em28xx_audio_free_urb(dev);  in em28xx_audio_urb_init()
866 		dev->adev.transfer_buffer[i] = buf;  in em28xx_audio_urb_init()
868 		urb->dev = dev->udev;  in em28xx_audio_urb_init()
869 		urb->context = dev;  in em28xx_audio_urb_init()
870 		urb->pipe = usb_rcvisocpipe(dev->udev, EM28XX_EP_AUDIO);  in em28xx_audio_urb_init()
887 static int em28xx_audio_init(struct em28xx *dev)  in em28xx_audio_init()  argument
889 	struct em28xx_audio *adev = &dev->adev;  in em28xx_audio_init()
895 	if (dev->usb_audio_type != EM28XX_USB_AUDIO_VENDOR) {  in em28xx_audio_init()
904 	kref_get(&dev->ref);  in em28xx_audio_init()
911 	err = snd_card_new(&dev->udev->dev, index[devnr], "Em28xx Audio",  in em28xx_audio_init()
918 	adev->udev = dev->udev;  in em28xx_audio_init()
926 	pcm->private_data = dev;  in em28xx_audio_init()
935 	if (dev->audio_mode.ac97 != EM28XX_NO_AC97) {  in em28xx_audio_init()
936 		em28xx_cvol_new(card, dev, "Video", AC97_VIDEO);  in em28xx_audio_init()
937 		em28xx_cvol_new(card, dev, "Line In", AC97_LINE);  in em28xx_audio_init()
938 		em28xx_cvol_new(card, dev, "Phone", AC97_PHONE);  in em28xx_audio_init()
939 		em28xx_cvol_new(card, dev, "Microphone", AC97_MIC);  in em28xx_audio_init()
940 		em28xx_cvol_new(card, dev, "CD", AC97_CD);  in em28xx_audio_init()
941 		em28xx_cvol_new(card, dev, "AUX", AC97_AUX);  in em28xx_audio_init()
942 		em28xx_cvol_new(card, dev, "PCM", AC97_PCM);  in em28xx_audio_init()
944 		em28xx_cvol_new(card, dev, "Master", AC97_MASTER);  in em28xx_audio_init()
945 		em28xx_cvol_new(card, dev, "Line", AC97_HEADPHONE);  in em28xx_audio_init()
946 		em28xx_cvol_new(card, dev, "Mono", AC97_MASTER_MONO);  in em28xx_audio_init()
947 		em28xx_cvol_new(card, dev, "LFE", AC97_CENTER_LFE_MASTER);  in em28xx_audio_init()
948 		em28xx_cvol_new(card, dev, "Surround", AC97_SURROUND_MASTER);  in em28xx_audio_init()
951 	err = em28xx_audio_urb_init(dev);  in em28xx_audio_init()
963 	em28xx_audio_free_urb(dev);  in em28xx_audio_init()
972 static int em28xx_audio_fini(struct em28xx *dev)  in em28xx_audio_fini()  argument
974 	if (dev == NULL)  in em28xx_audio_fini()
977 	if (dev->usb_audio_type != EM28XX_USB_AUDIO_VENDOR) {  in em28xx_audio_fini()
986 	if (dev->adev.sndcard) {  in em28xx_audio_fini()
987 		snd_card_disconnect(dev->adev.sndcard);  in em28xx_audio_fini()
988 		flush_work(&dev->adev.wq_trigger);  in em28xx_audio_fini()
990 		em28xx_audio_free_urb(dev);  in em28xx_audio_fini()
992 		snd_card_free(dev->adev.sndcard);  in em28xx_audio_fini()
993 		dev->adev.sndcard = NULL;  in em28xx_audio_fini()
996 	kref_put(&dev->ref, em28xx_free_device);  in em28xx_audio_fini()
1000 static int em28xx_audio_suspend(struct em28xx *dev)  in em28xx_audio_suspend()  argument
1002 	if (dev == NULL)  in em28xx_audio_suspend()
1005 	if (dev->usb_audio_type != EM28XX_USB_AUDIO_VENDOR)  in em28xx_audio_suspend()
1009 	em28xx_deinit_isoc_audio(dev);  in em28xx_audio_suspend()
1010 	atomic_set(&dev->adev.stream_started, 0);  in em28xx_audio_suspend()
1014 static int em28xx_audio_resume(struct em28xx *dev)  in em28xx_audio_resume()  argument
1016 	if (dev == NULL)  in em28xx_audio_resume()
1019 	if (dev->usb_audio_type != EM28XX_USB_AUDIO_VENDOR)  in em28xx_audio_resume()
1024 	schedule_work(&dev->adev.wq_trigger);  in em28xx_audio_resume()