180 	struct uac2_rtd_params *prm = ur->pp;  in agdev_iso_complete()  local
181 	struct snd_uac2_chip *uac2 = prm->uac2;  in agdev_iso_complete()
184 	if (!prm->ep_enabled || req->status == -ESHUTDOWN)  in agdev_iso_complete()
195 	substream = prm->ss;  in agdev_iso_complete()
201 	spin_lock_irqsave(&prm->lock, flags);  in agdev_iso_complete()
227 	pending = prm->hw_ptr % prm->period_size;  in agdev_iso_complete()
229 	if (pending >= prm->period_size)  in agdev_iso_complete()
232 	hw_ptr = prm->hw_ptr;  in agdev_iso_complete()
233 	prm->hw_ptr = (prm->hw_ptr + req->actual) % prm->dma_bytes;  in agdev_iso_complete()
235 	spin_unlock_irqrestore(&prm->lock, flags);  in agdev_iso_complete()
238 	pending = prm->dma_bytes - hw_ptr;  in agdev_iso_complete()
242 			memcpy(req->buf, prm->dma_area + hw_ptr, pending);  in agdev_iso_complete()
243 			memcpy(req->buf + pending, prm->dma_area,  in agdev_iso_complete()
246 			memcpy(req->buf, prm->dma_area + hw_ptr, req->actual);  in agdev_iso_complete()
250 			memcpy(prm->dma_area + hw_ptr, req->buf, pending);  in agdev_iso_complete()
251 			memcpy(prm->dma_area, req->buf + pending,  in agdev_iso_complete()
254 			memcpy(prm->dma_area + hw_ptr, req->buf, req->actual);  in agdev_iso_complete()
272 	struct uac2_rtd_params *prm;  in uac2_pcm_trigger()  local
277 		prm = &uac2->p_prm;  in uac2_pcm_trigger()
279 		prm = &uac2->c_prm;  in uac2_pcm_trigger()
281 	spin_lock_irqsave(&prm->lock, flags);  in uac2_pcm_trigger()
284 	prm->hw_ptr = 0;  in uac2_pcm_trigger()
289 		prm->ss = substream;  in uac2_pcm_trigger()
293 		prm->ss = NULL;  in uac2_pcm_trigger()
299 	spin_unlock_irqrestore(&prm->lock, flags);  in uac2_pcm_trigger()
302 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && !prm->ss)  in uac2_pcm_trigger()
303 		memset(prm->rbuf, 0, prm->max_psize * USB_XFERS);  in uac2_pcm_trigger()
311 	struct uac2_rtd_params *prm;  in uac2_pcm_pointer()  local
314 		prm = &uac2->p_prm;  in uac2_pcm_pointer()
316 		prm = &uac2->c_prm;  in uac2_pcm_pointer()
318 	return bytes_to_frames(substream->runtime, prm->hw_ptr);  in uac2_pcm_pointer()
325 	struct uac2_rtd_params *prm;  in uac2_pcm_hw_params()  local
329 		prm = &uac2->p_prm;  in uac2_pcm_hw_params()
331 		prm = &uac2->c_prm;  in uac2_pcm_hw_params()
336 		prm->dma_bytes = substream->runtime->dma_bytes;  in uac2_pcm_hw_params()
337 		prm->dma_area = substream->runtime->dma_area;  in uac2_pcm_hw_params()
338 		prm->period_size = params_period_bytes(hw_params);  in uac2_pcm_hw_params()
347 	struct uac2_rtd_params *prm;  in uac2_pcm_hw_free()  local
350 		prm = &uac2->p_prm;  in uac2_pcm_hw_free()
352 		prm = &uac2->c_prm;  in uac2_pcm_hw_free()
354 	prm->dma_area = NULL;  in uac2_pcm_hw_free()
355 	prm->dma_bytes = 0;  in uac2_pcm_hw_free()
356 	prm->period_size = 0;  in uac2_pcm_hw_free()
955 free_ep(struct uac2_rtd_params *prm, struct usb_ep *ep)  in free_ep()  argument
957 	struct snd_uac2_chip *uac2 = prm->uac2;  in free_ep()
960 	if (!prm->ep_enabled)  in free_ep()
963 	prm->ep_enabled = false;  in free_ep()
966 		if (prm->ureq[i].req) {  in free_ep()
967 			usb_ep_dequeue(ep, prm->ureq[i].req);  in free_ep()
968 			usb_ep_free_request(ep, prm->ureq[i].req);  in free_ep()
969 			prm->ureq[i].req = NULL;  in free_ep()
1009 	struct uac2_rtd_params *prm;  in afunc_bind()  local
1107 	prm = &agdev->uac2.c_prm;  in afunc_bind()
1108 	prm->max_psize = hs_epout_desc.wMaxPacketSize;  in afunc_bind()
1109 	prm->rbuf = kzalloc(prm->max_psize * USB_XFERS, GFP_KERNEL);  in afunc_bind()
1110 	if (!prm->rbuf) {  in afunc_bind()
1111 		prm->max_psize = 0;  in afunc_bind()
1115 	prm = &agdev->uac2.p_prm;  in afunc_bind()
1116 	prm->max_psize = hs_epin_desc.wMaxPacketSize;  in afunc_bind()
1117 	prm->rbuf = kzalloc(prm->max_psize * USB_XFERS, GFP_KERNEL);  in afunc_bind()
1118 	if (!prm->rbuf) {  in afunc_bind()
1119 		prm->max_psize = 0;  in afunc_bind()
1146 	struct uac2_rtd_params *prm;  in afunc_set_alt()  local
1166 		prm = &uac2->c_prm;  in afunc_set_alt()
1169 		req_len = prm->max_psize;  in afunc_set_alt()
1176 		prm = &uac2->p_prm;  in afunc_set_alt()
1195 					prm->max_psize);  in afunc_set_alt()
1197 		if (uac2->p_pktsize < prm->max_psize)  in afunc_set_alt()
1210 		free_ep(prm, ep);  in afunc_set_alt()
1214 	prm->ep_enabled = true;  in afunc_set_alt()
1218 		if (!prm->ureq[i].req) {  in afunc_set_alt()
1223 			prm->ureq[i].req = req;  in afunc_set_alt()
1224 			prm->ureq[i].pp = prm;  in afunc_set_alt()
1227 			req->context = &prm->ureq[i];  in afunc_set_alt()
1230 			req->buf = prm->rbuf + i * prm->max_psize;  in afunc_set_alt()
1233 		if (usb_ep_queue(ep, prm->ureq[i].req, GFP_ATOMIC))  in afunc_set_alt()
1564 	struct uac2_rtd_params *prm;  in afunc_unbind()  local
1568 	prm = &agdev->uac2.p_prm;  in afunc_unbind()
1569 	kfree(prm->rbuf);  in afunc_unbind()
1571 	prm = &agdev->uac2.c_prm;  in afunc_unbind()
1572 	kfree(prm->rbuf);  in afunc_unbind()