Rename variable master_lch to asp_channel Rename variable slave_lch to asp_link[0] Rename local variables: lch to link count to asp_count src to asp_src dst to asp_dst
Signed-off-by: Troy Kisky troy.kisky@boundarydevices.com --- sound/soc/davinci/davinci-pcm.c | 64 +++++++++++++++++++------------------- 1 files changed, 32 insertions(+), 32 deletions(-)
diff --git a/sound/soc/davinci/davinci-pcm.c b/sound/soc/davinci/davinci-pcm.c index c2c2e85..7757010 100644 --- a/sound/soc/davinci/davinci-pcm.c +++ b/sound/soc/davinci/davinci-pcm.c @@ -51,8 +51,8 @@ static struct snd_pcm_hardware davinci_pcm_hardware = { struct davinci_runtime_data { spinlock_t lock; int period; /* current DMA period */ - int master_lch; /* Master DMA channel */ - int slave_lch; /* linked parameter RAM reload slot */ + int asp_channel; /* Master DMA channel */ + int asp_link[2]; /* asp parameter link channel, ping/pong */ struct davinci_pcm_dma_params *params; /* DMA params */ };
@@ -60,7 +60,7 @@ static void davinci_pcm_enqueue_dma(struct snd_pcm_substream *substream) { struct davinci_runtime_data *prtd = substream->runtime->private_data; struct snd_pcm_runtime *runtime = substream->runtime; - int lch = prtd->slave_lch; + int link = prtd->asp_link[0]; unsigned int period_size; unsigned int dma_offset; dma_addr_t dma_pos; @@ -75,7 +75,7 @@ static void davinci_pcm_enqueue_dma(struct snd_pcm_substream *substream) dma_pos = runtime->dma_addr + dma_offset;
pr_debug("davinci_pcm: audio_set_dma_params_play channel = %d " - "dma_ptr = %x period_size=%x\n", lch, dma_pos, period_size); + "dma_ptr = %x period_size=%x\n", link, dma_pos, period_size);
data_type = prtd->params->data_type; count = period_size / data_type; @@ -93,23 +93,23 @@ static void davinci_pcm_enqueue_dma(struct snd_pcm_substream *substream) }
acnt = prtd->params->acnt; - edma_set_src(lch, src, INCR, W8BIT); - edma_set_dest(lch, dst, INCR, W8BIT); - edma_set_src_index(lch, src_bidx, 0); - edma_set_dest_index(lch, dst_bidx, 0); - edma_set_transfer_params(lch, acnt, count, 1, 0, ASYNC); + edma_set_src(link, src, INCR, W8BIT); + edma_set_dest(link, dst, INCR, W8BIT); + edma_set_src_index(link, src_bidx, 0); + edma_set_dest_index(link, dst_bidx, 0); + edma_set_transfer_params(link, acnt, count, 1, 0, ASYNC);
prtd->period++; if (unlikely(prtd->period >= runtime->periods)) prtd->period = 0; }
-static void davinci_pcm_dma_irq(unsigned lch, u16 ch_status, void *data) +static void davinci_pcm_dma_irq(unsigned link, u16 ch_status, void *data) { struct snd_pcm_substream *substream = data; struct davinci_runtime_data *prtd = substream->runtime->private_data;
- pr_debug("davinci_pcm: lch=%d, status=0x%x\n", lch, ch_status); + pr_debug("davinci_pcm: link=%d, status=0x%x\n", link, ch_status);
if (unlikely(ch_status != DMA_COMPLETE)) return; @@ -135,15 +135,15 @@ static int davinci_pcm_dma_request(struct snd_pcm_substream *substream) EVENTQ_0); if (ret < 0) return ret; - prtd->master_lch = ret; + prtd->asp_channel = ret;
/* Request parameter RAM reload slot */ - ret = edma_alloc_slot(EDMA_CTLR(prtd->master_lch), EDMA_SLOT_ANY); + ret = edma_alloc_slot(EDMA_CTLR(prtd->asp_channel), EDMA_SLOT_ANY); if (ret < 0) { - edma_free_channel(prtd->master_lch); + edma_free_channel(prtd->asp_channel); return ret; } - prtd->slave_lch = ret; + prtd->asp_link[0] = ret;
/* Issue transfer completion IRQ when the channel completes a * transfer, then always reload from the same slot (by a kind @@ -154,10 +154,10 @@ static int davinci_pcm_dma_request(struct snd_pcm_substream *substream) * the buffer and its length (ccnt) ... use it as a template * so davinci_pcm_enqueue_dma() takes less time in IRQ. */ - edma_read_slot(prtd->slave_lch, &p_ram); - p_ram.opt |= TCINTEN | EDMA_TCC(EDMA_CHAN_SLOT(prtd->master_lch)); - p_ram.link_bcntrld = EDMA_CHAN_SLOT(prtd->slave_lch) << 5; - edma_write_slot(prtd->slave_lch, &p_ram); + edma_read_slot(prtd->asp_link[0], &p_ram); + p_ram.opt |= TCINTEN | EDMA_TCC(EDMA_CHAN_SLOT(prtd->asp_channel)); + p_ram.link_bcntrld = EDMA_CHAN_SLOT(prtd->asp_link[0]) << 5; + edma_write_slot(prtd->asp_link[0], &p_ram);
return 0; } @@ -173,12 +173,12 @@ static int davinci_pcm_trigger(struct snd_pcm_substream *substream, int cmd) case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - edma_start(prtd->master_lch); + edma_start(prtd->asp_channel); break; case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - edma_stop(prtd->master_lch); + edma_stop(prtd->asp_channel); break; default: ret = -EINVAL; @@ -199,8 +199,8 @@ static int davinci_pcm_prepare(struct snd_pcm_substream *substream) davinci_pcm_enqueue_dma(substream);
/* Copy self-linked parameter RAM entry into master channel */ - edma_read_slot(prtd->slave_lch, &temp); - edma_write_slot(prtd->master_lch, &temp); + edma_read_slot(prtd->asp_link[0], &temp); + edma_write_slot(prtd->asp_channel, &temp); davinci_pcm_enqueue_dma(substream);
return 0; @@ -212,20 +212,20 @@ davinci_pcm_pointer(struct snd_pcm_substream *substream) struct snd_pcm_runtime *runtime = substream->runtime; struct davinci_runtime_data *prtd = runtime->private_data; unsigned int offset; - dma_addr_t count; - dma_addr_t src, dst; + int asp_count; + dma_addr_t asp_src, asp_dst;
spin_lock(&prtd->lock);
- edma_get_position(prtd->master_lch, &src, &dst); + edma_get_position(prtd->asp_channel, &asp_src, &asp_dst); if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - count = src - runtime->dma_addr; + asp_count = asp_src - runtime->dma_addr; else - count = dst - runtime->dma_addr; + asp_count = asp_dst - runtime->dma_addr;
spin_unlock(&prtd->lock);
- offset = bytes_to_frames(runtime, count); + offset = bytes_to_frames(runtime, asp_count); if (offset >= runtime->buffer_size) offset = 0;
@@ -274,10 +274,10 @@ static int davinci_pcm_close(struct snd_pcm_substream *substream) struct snd_pcm_runtime *runtime = substream->runtime; struct davinci_runtime_data *prtd = runtime->private_data;
- edma_unlink(prtd->slave_lch); + edma_unlink(prtd->asp_link[0]);
- edma_free_slot(prtd->slave_lch); - edma_free_channel(prtd->master_lch); + edma_free_slot(prtd->asp_link[0]); + edma_free_channel(prtd->asp_channel);
kfree(prtd);