diff options
Diffstat (limited to 'sound/soc/jz4740/jz4740-i2s.c')
| -rw-r--r-- | sound/soc/jz4740/jz4740-i2s.c | 135 |
1 files changed, 35 insertions, 100 deletions
diff --git a/sound/soc/jz4740/jz4740-i2s.c b/sound/soc/jz4740/jz4740-i2s.c index 4c849a4..8f22000 100644 --- a/sound/soc/jz4740/jz4740-i2s.c +++ b/sound/soc/jz4740/jz4740-i2s.c @@ -29,9 +29,11 @@ #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/initval.h> +#include <sound/dmaengine_pcm.h> + +#include <asm/mach-jz4740/dma.h> #include "jz4740-i2s.h" -#include "jz4740-pcm.h" #define JZ_REG_AIC_CONF 0x00 #define JZ_REG_AIC_CTRL 0x04 @@ -89,8 +91,8 @@ struct jz4740_i2s { struct clk *clk_aic; struct clk *clk_i2s; - struct jz4740_pcm_config pcm_config_playback; - struct jz4740_pcm_config pcm_config_capture; + struct snd_dmaengine_dai_dma_data playback_dma_data; + struct snd_dmaengine_dai_dma_data capture_dma_data; }; static inline uint32_t jz4740_i2s_read(const struct jz4740_i2s *i2s, @@ -233,8 +235,6 @@ static int jz4740_i2s_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) { struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai); - enum jz4740_dma_width dma_width; - struct jz4740_pcm_config *pcm_config; unsigned int sample_size; uint32_t ctrl; @@ -243,11 +243,9 @@ static int jz4740_i2s_hw_params(struct snd_pcm_substream *substream, switch (params_format(params)) { case SNDRV_PCM_FORMAT_S8: sample_size = 0; - dma_width = JZ4740_DMA_WIDTH_8BIT; break; case SNDRV_PCM_FORMAT_S16: sample_size = 1; - dma_width = JZ4740_DMA_WIDTH_16BIT; break; default: return -EINVAL; @@ -260,22 +258,13 @@ static int jz4740_i2s_hw_params(struct snd_pcm_substream *substream, ctrl |= JZ_AIC_CTRL_MONO_TO_STEREO; else ctrl &= ~JZ_AIC_CTRL_MONO_TO_STEREO; - - pcm_config = &i2s->pcm_config_playback; - pcm_config->dma_config.dst_width = dma_width; - } else { ctrl &= ~JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_MASK; ctrl |= sample_size << JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_OFFSET; - - pcm_config = &i2s->pcm_config_capture; - pcm_config->dma_config.src_width = dma_width; } jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl); - snd_soc_dai_set_dma_data(dai, substream, pcm_config); - return 0; } @@ -342,25 +331,19 @@ static int jz4740_i2s_resume(struct snd_soc_dai *dai) static void jz4740_i2c_init_pcm_config(struct jz4740_i2s *i2s) { - struct jz4740_dma_config *dma_config; + struct snd_dmaengine_dai_dma_data *dma_data; /* Playback */ - dma_config = &i2s->pcm_config_playback.dma_config; - dma_config->src_width = JZ4740_DMA_WIDTH_32BIT; - dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE; - dma_config->request_type = JZ4740_DMA_TYPE_AIC_TRANSMIT; - dma_config->flags = JZ4740_DMA_SRC_AUTOINC; - dma_config->mode = JZ4740_DMA_MODE_SINGLE; - i2s->pcm_config_playback.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO; + dma_data = &i2s->playback_dma_data; + dma_data->maxburst = 16; + dma_data->slave_id = JZ4740_DMA_TYPE_AIC_TRANSMIT; + dma_data->addr = i2s->phys_base + JZ_REG_AIC_FIFO; /* Capture */ - dma_config = &i2s->pcm_config_capture.dma_config; - dma_config->dst_width = JZ4740_DMA_WIDTH_32BIT; - dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE; - dma_config->request_type = JZ4740_DMA_TYPE_AIC_RECEIVE; - dma_config->flags = JZ4740_DMA_DST_AUTOINC; - dma_config->mode = JZ4740_DMA_MODE_SINGLE; - i2s->pcm_config_capture.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO; + dma_data = &i2s->capture_dma_data; + dma_data->maxburst = 16; + dma_data->slave_id = JZ4740_DMA_TYPE_AIC_RECEIVE; + dma_data->addr = i2s->phys_base + JZ_REG_AIC_FIFO; } static int jz4740_i2s_dai_probe(struct snd_soc_dai *dai) @@ -371,6 +354,8 @@ static int jz4740_i2s_dai_probe(struct snd_soc_dai *dai) clk_prepare_enable(i2s->clk_aic); jz4740_i2c_init_pcm_config(i2s); + snd_soc_dai_init_dma_data(dai, &i2s->playback_dma_data, + &i2s->capture_dma_data); conf = (7 << JZ_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET) | (8 << JZ_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET) | @@ -432,91 +417,41 @@ static const struct snd_soc_component_driver jz4740_i2s_component = { static int jz4740_i2s_dev_probe(struct platform_device *pdev) { struct jz4740_i2s *i2s; + struct resource *mem; int ret; - i2s = kzalloc(sizeof(*i2s), GFP_KERNEL); - + i2s = devm_kzalloc(&pdev->dev, sizeof(*i2s), GFP_KERNEL); if (!i2s) return -ENOMEM; - i2s->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!i2s->mem) { - ret = -ENOENT; - goto err_free; - } - - i2s->mem = request_mem_region(i2s->mem->start, resource_size(i2s->mem), - pdev->name); - if (!i2s->mem) { - ret = -EBUSY; - goto err_free; - } + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + i2s->base = devm_ioremap_resource(&pdev->dev, mem); + if (IS_ERR(i2s->base)) + return PTR_ERR(i2s->base); - i2s->base = ioremap_nocache(i2s->mem->start, resource_size(i2s->mem)); - if (!i2s->base) { - ret = -EBUSY; - goto err_release_mem_region; - } + i2s->phys_base = mem->start; - i2s->phys_base = i2s->mem->start; + i2s->clk_aic = devm_clk_get(&pdev->dev, "aic"); + if (IS_ERR(i2s->clk_aic)) + return PTR_ERR(i2s->clk_aic); - i2s->clk_aic = clk_get(&pdev->dev, "aic"); - if (IS_ERR(i2s->clk_aic)) { - ret = PTR_ERR(i2s->clk_aic); - goto err_iounmap; - } - - i2s->clk_i2s = clk_get(&pdev->dev, "i2s"); - if (IS_ERR(i2s->clk_i2s)) { - ret = PTR_ERR(i2s->clk_i2s); - goto err_clk_put_aic; - } + i2s->clk_i2s = devm_clk_get(&pdev->dev, "i2s"); + if (IS_ERR(i2s->clk_i2s)) + return PTR_ERR(i2s->clk_i2s); platform_set_drvdata(pdev, i2s); - ret = snd_soc_register_component(&pdev->dev, &jz4740_i2s_component, - &jz4740_i2s_dai, 1); - if (ret) { - dev_err(&pdev->dev, "Failed to register DAI\n"); - goto err_clk_put_i2s; - } - - return 0; - -err_clk_put_i2s: - clk_put(i2s->clk_i2s); -err_clk_put_aic: - clk_put(i2s->clk_aic); -err_iounmap: - iounmap(i2s->base); -err_release_mem_region: - release_mem_region(i2s->mem->start, resource_size(i2s->mem)); -err_free: - kfree(i2s); - - return ret; -} + ret = devm_snd_soc_register_component(&pdev->dev, + &jz4740_i2s_component, &jz4740_i2s_dai, 1); + if (ret) + return ret; -static int jz4740_i2s_dev_remove(struct platform_device *pdev) -{ - struct jz4740_i2s *i2s = platform_get_drvdata(pdev); - - snd_soc_unregister_component(&pdev->dev); - - clk_put(i2s->clk_i2s); - clk_put(i2s->clk_aic); - - iounmap(i2s->base); - release_mem_region(i2s->mem->start, resource_size(i2s->mem)); - - kfree(i2s); - - return 0; + return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, + SND_DMAENGINE_PCM_FLAG_COMPAT); } static struct platform_driver jz4740_i2s_driver = { .probe = jz4740_i2s_dev_probe, - .remove = jz4740_i2s_dev_remove, .driver = { .name = "jz4740-i2s", .owner = THIS_MODULE, |
