soc/uniphier/aio-dma.c

28 static void aiodma_pcm_irq(struct uniphier_aio_sub *sub)
30 	struct snd_pcm_runtime *runtime = sub->substream->runtime;
35 	spin_lock(&sub->lock);
36 	ret = aiodma_rb_set_threshold(sub, runtime->dma_bytes,
37 				      sub->threshold + bytes);
39 		sub->threshold += bytes;
41 	aiodma_rb_sync(sub, runtime->dma_addr, runtime->dma_bytes, bytes);
42 	aiodma_rb_clear_irq(sub);
43 	spin_unlock(&sub->lock);
45 	snd_pcm_period_elapsed(sub->substream);
48 static void aiodma_compr_irq(struct uniphier_aio_sub *sub)
50 	struct snd_compr_runtime *runtime = sub->cstream->runtime;
54 	spin_lock(&sub->lock);
55 	ret = aiodma_rb_set_threshold(sub, sub->compr_bytes,
56 				      sub->threshold + bytes);
58 		sub->threshold += bytes;
60 	aiodma_rb_sync(sub, sub->compr_addr, sub->compr_bytes, bytes);
61 	aiodma_rb_clear_irq(sub);
62 	spin_unlock(&sub->lock);
64 	snd_compr_fragment_elapsed(sub->cstream);
77 		for (j = 0; j < ARRAY_SIZE(aio->sub); j++) {
78 			struct uniphier_aio_sub *sub = &aio->sub[j];
81 			if (!sub->running || !aiodma_rb_is_irq(sub))
84 			if (sub->substream)
85 				aiodma_pcm_irq(sub);
86 			if (sub->cstream)
87 				aiodma_compr_irq(sub);
113 	struct uniphier_aio_sub *sub = &aio->sub[substream->stream];
119 	ret = aiodma_ch_set_param(sub);
123 	spin_lock_irqsave(&sub->lock, flags);
124 	ret = aiodma_rb_set_buffer(sub, runtime->dma_addr,
127 	spin_unlock_irqrestore(&sub->lock, flags);
140 	struct uniphier_aio_sub *sub = &aio->sub[substream->stream];
146 	spin_lock_irqsave(&sub->lock, flags);
149 		aiodma_rb_sync(sub, runtime->dma_addr, runtime->dma_bytes,
151 		aiodma_ch_set_enable(sub, 1);
152 		sub->running = 1;
156 		sub->running = 0;
157 		aiodma_ch_set_enable(sub, 0);
164 	spin_unlock_irqrestore(&sub->lock, flags);
176 	struct uniphier_aio_sub *sub = &aio->sub[substream->stream];
182 	spin_lock_irqsave(&sub->lock, flags);
183 	aiodma_rb_sync(sub, runtime->dma_addr, runtime->dma_bytes, bytes);
185 	if (sub->swm->dir == PORT_DIR_OUTPUT)
186 		pos = bytes_to_frames(runtime, sub->rd_offs);
188 		pos = bytes_to_frames(runtime, sub->wr_offs);
189 	spin_unlock_irqrestore(&sub->lock, flags);