38 		struct tw686x_audio_channel *ac = &dev->audio_channels[ch];  in tw686x_audio_irq()  local
45 		spin_lock_irqsave(&ac->lock, flags);  in tw686x_audio_irq()
48 		if (!ac->ss || !ac->curr_bufs[0] || !ac->curr_bufs[1]) {  in tw686x_audio_irq()
49 			spin_unlock_irqrestore(&ac->lock, flags);  in tw686x_audio_irq()
53 		if (!list_empty(&ac->buf_list)) {  in tw686x_audio_irq()
54 			next = list_first_entry(&ac->buf_list,  in tw686x_audio_irq()
56 			list_move_tail(&next->list, &ac->buf_list);  in tw686x_audio_irq()
57 			done = ac->curr_bufs[!pb];  in tw686x_audio_irq()
58 			ac->curr_bufs[pb] = next;  in tw686x_audio_irq()
60 		spin_unlock_irqrestore(&ac->lock, flags);  in tw686x_audio_irq()
68 		desc = &ac->dma_descs[pb];  in tw686x_audio_irq()
76 		ac->ptr = done->dma - ac->buf[0].dma;  in tw686x_audio_irq()
77 		snd_pcm_period_elapsed(ac->ss);  in tw686x_audio_irq()
107 	struct tw686x_audio_channel *ac = &dev->audio_channels[ss->number];  in tw686x_pcm_open()  local
111 	ac->ss = ss;  in tw686x_pcm_open()
124 	struct tw686x_audio_channel *ac = &dev->audio_channels[ss->number];  in tw686x_pcm_close()  local
126 	ac->ss = NULL;  in tw686x_pcm_close()
133 	struct tw686x_audio_channel *ac = &dev->audio_channels[ss->number];  in tw686x_pcm_prepare()  local
149 	tw686x_disable_channel(dev, AUDIO_CHANNEL_OFFSET + ac->ch);  in tw686x_pcm_prepare()
177 	spin_lock_irqsave(&ac->lock, flags);  in tw686x_pcm_prepare()
178 	INIT_LIST_HEAD(&ac->buf_list);  in tw686x_pcm_prepare()
181 		ac->buf[i].dma = rt->dma_addr + period_size * i;  in tw686x_pcm_prepare()
182 		ac->buf[i].virt = rt->dma_area + period_size * i;  in tw686x_pcm_prepare()
183 		INIT_LIST_HEAD(&ac->buf[i].list);  in tw686x_pcm_prepare()
184 		list_add_tail(&ac->buf[i].list, &ac->buf_list);  in tw686x_pcm_prepare()
187 	p_buf =	list_first_entry(&ac->buf_list, struct tw686x_audio_buf, list);  in tw686x_pcm_prepare()
188 	list_move_tail(&p_buf->list, &ac->buf_list);  in tw686x_pcm_prepare()
190 	b_buf =	list_first_entry(&ac->buf_list, struct tw686x_audio_buf, list);  in tw686x_pcm_prepare()
191 	list_move_tail(&b_buf->list, &ac->buf_list);  in tw686x_pcm_prepare()
193 	ac->curr_bufs[0] = p_buf;  in tw686x_pcm_prepare()
194 	ac->curr_bufs[1] = b_buf;  in tw686x_pcm_prepare()
195 	ac->ptr = 0;  in tw686x_pcm_prepare()
198 		reg_write(dev, ADMA_P_ADDR[ac->ch], p_buf->dma);  in tw686x_pcm_prepare()
199 		reg_write(dev, ADMA_B_ADDR[ac->ch], b_buf->dma);  in tw686x_pcm_prepare()
202 	spin_unlock_irqrestore(&ac->lock, flags);  in tw686x_pcm_prepare()
214 	struct tw686x_audio_channel *ac = &dev->audio_channels[ss->number];  in tw686x_pcm_trigger()  local
220 		if (ac->curr_bufs[0] && ac->curr_bufs[1]) {  in tw686x_pcm_trigger()
224 				AUDIO_CHANNEL_OFFSET + ac->ch);  in tw686x_pcm_trigger()
236 		tw686x_disable_channel(dev, AUDIO_CHANNEL_OFFSET + ac->ch);  in tw686x_pcm_trigger()
239 		spin_lock_irqsave(&ac->lock, flags);  in tw686x_pcm_trigger()
240 		ac->curr_bufs[0] = NULL;  in tw686x_pcm_trigger()
241 		ac->curr_bufs[1] = NULL;  in tw686x_pcm_trigger()
242 		spin_unlock_irqrestore(&ac->lock, flags);  in tw686x_pcm_trigger()
253 	struct tw686x_audio_channel *ac = &dev->audio_channels[ss->number];  in tw686x_pcm_pointer()  local
255 	return bytes_to_frames(ss->runtime, ac->ptr);  in tw686x_pcm_pointer()
296 				  struct tw686x_audio_channel *ac)  in tw686x_audio_dma_free()  argument
301 		if (!ac->dma_descs[pb].virt)  in tw686x_audio_dma_free()
303 		pci_free_consistent(dev->pci_dev, ac->dma_descs[pb].size,  in tw686x_audio_dma_free()
304 				    ac->dma_descs[pb].virt,  in tw686x_audio_dma_free()
305 				    ac->dma_descs[pb].phys);  in tw686x_audio_dma_free()
306 		ac->dma_descs[pb].virt = NULL;  in tw686x_audio_dma_free()
311 				  struct tw686x_audio_channel *ac)  in tw686x_audio_dma_alloc()  argument
324 		u32 reg = pb ? ADMA_B_ADDR[ac->ch] : ADMA_P_ADDR[ac->ch];  in tw686x_audio_dma_alloc()
328 					    &ac->dma_descs[pb].phys);  in tw686x_audio_dma_alloc()
332 				ac->ch, pb ? "B" : "P");  in tw686x_audio_dma_alloc()
335 		ac->dma_descs[pb].virt = virt;  in tw686x_audio_dma_alloc()
336 		ac->dma_descs[pb].size = AUDIO_DMA_SIZE_MAX;  in tw686x_audio_dma_alloc()
337 		reg_write(dev, reg, ac->dma_descs[pb].phys);  in tw686x_audio_dma_alloc()
383 		struct tw686x_audio_channel *ac;  in tw686x_audio_init()  local
385 		ac = &dev->audio_channels[ch];  in tw686x_audio_init()
386 		spin_lock_init(&ac->lock);  in tw686x_audio_init()
387 		ac->dev = dev;  in tw686x_audio_init()
388 		ac->ch = ch;  in tw686x_audio_init()
390 		err = tw686x_audio_dma_alloc(dev, ac);  in tw686x_audio_init()