[alsa-devel] [PATCH 1/6] ASoC: amd: Refactoring of DAI from DMA driver
ASoC: PCM DMA driver should only have dma ops. So Removed all DAI related functionality.Refactoring the PCM DMA diver code.Added new file containing only DAI ops
Signed-off-by: Ravulapati Vishnu vardhan rao Vishnuvardhanrao.Ravulapati@amd.com --- sound/soc/amd/raven/Makefile | 2 + sound/soc/amd/raven/acp3x-i2s.c | 261 ++++++++++++++++++++++++++++++++ sound/soc/amd/raven/acp3x-pcm-dma.c | 292 ++++++------------------------------ sound/soc/amd/raven/acp3x.h | 44 ++++++ 4 files changed, 356 insertions(+), 243 deletions(-) create mode 100644 sound/soc/amd/raven/acp3x-i2s.c
diff --git a/sound/soc/amd/raven/Makefile b/sound/soc/amd/raven/Makefile index 108d1ac..62c22b6 100644 --- a/sound/soc/amd/raven/Makefile +++ b/sound/soc/amd/raven/Makefile @@ -2,5 +2,7 @@ # Raven Ridge platform Support snd-pci-acp3x-objs := pci-acp3x.o snd-acp3x-pcm-dma-objs := acp3x-pcm-dma.o +snd-acp3x-i2s-objs := acp3x-i2s.o obj-$(CONFIG_SND_SOC_AMD_ACP3x) += snd-pci-acp3x.o obj-$(CONFIG_SND_SOC_AMD_ACP3x) += snd-acp3x-pcm-dma.o +obj-$(CONFIG_SND_SOC_AMD_ACP3x) += snd-acp3x-i2s.o diff --git a/sound/soc/amd/raven/acp3x-i2s.c b/sound/soc/amd/raven/acp3x-i2s.c new file mode 100644 index 0000000..d9bc0fc --- /dev/null +++ b/sound/soc/amd/raven/acp3x-i2s.c @@ -0,0 +1,261 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// AMD ALSA SoC PCM Driver +// +//Copyright 2016 Advanced Micro Devices, Inc. + +#include <linux/platform_device.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/io.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> +#include <linux/dma-mapping.h> + +#include "acp3x.h" + +#define DRV_NAME "acp3x-i2s" + +static int acp3x_i2s_set_fmt(struct snd_soc_dai *cpu_dai, + unsigned int fmt) +{ + struct i2s_dev_data *adata; + int mode; + + adata = snd_soc_dai_get_drvdata(cpu_dai); + mode = fmt & SND_SOC_DAIFMT_FORMAT_MASK; + switch (mode) { + case SND_SOC_DAIFMT_I2S: + adata->tdm_mode = false; + break; + case SND_SOC_DAIFMT_DSP_A: + adata->tdm_mode = true; + break; + default: + return -EINVAL; + } + return 0; +} + +static int acp3x_i2s_set_tdm_slot(struct snd_soc_dai *cpu_dai, + u32 tx_mask, u32 rx_mask, int slots, int slot_width) +{ + struct i2s_dev_data *adata; + u32 val, reg_val, frmt_val, frm_len; + u16 slot_len; + + adata = snd_soc_dai_get_drvdata(cpu_dai); + + /* These values are as per Hardware Spec */ + switch (slot_width) { + case SLOT_WIDTH_8: + slot_len = 8; + break; + case SLOT_WIDTH_16: + slot_len = 16; + break; + case SLOT_WIDTH_24: + slot_len = 24; + break; + case SLOT_WIDTH_32: + slot_len = 0; + break; + default: + return -EINVAL; + } + + /* Enable I2S/BT channels TDM, respective TX/RX frame lengths.*/ + + frm_len = FRM_LEN | (slots << 15) | (slot_len << 18); + if (adata->substream_type == SNDRV_PCM_STREAM_PLAYBACK) { + reg_val = mmACP_BTTDM_ITER; + frmt_val = mmACP_BTTDM_TXFRMT; + } else { + reg_val = mmACP_BTTDM_IRER; + frmt_val = mmACP_BTTDM_RXFRMT; + } + val = rv_readl(adata->acp3x_base + reg_val); + rv_writel(val | 0x2, adata->acp3x_base + reg_val); + rv_writel(frm_len, adata->acp3x_base + frmt_val); + adata->tdm_fmt = frm_len; + return 0; +} + +static int acp3x_i2s_hwparams(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) +{ + struct i2s_stream_instance *rtd; + u32 val; + u32 reg_val; + + rtd = substream->runtime->private_data; + + /* These values are as per Hardware Spec */ + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_U8: + case SNDRV_PCM_FORMAT_S8: + rtd->xfer_resolution = 0x0; + break; + case SNDRV_PCM_FORMAT_S16_LE: + rtd->xfer_resolution = 0x02; + break; + case SNDRV_PCM_FORMAT_S24_LE: + rtd->xfer_resolution = 0x04; + break; + case SNDRV_PCM_FORMAT_S32_LE: + rtd->xfer_resolution = 0x05; + break; + default: + return -EINVAL; + } + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + reg_val = mmACP_BTTDM_ITER; + else + reg_val = mmACP_BTTDM_IRER; + + val = rv_readl(rtd->acp3x_base + reg_val); + val = val | (rtd->xfer_resolution << 3); + rv_writel(val, rtd->acp3x_base + reg_val); + return 0; +} + +static int acp3x_i2s_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + struct i2s_stream_instance *rtd; + u32 val, period_bytes; + int ret, reg_val; + + rtd = substream->runtime->private_data; + period_bytes = frames_to_bytes(substream->runtime, + substream->runtime->period_size); + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + rtd->bytescount = acp_get_byte_count(rtd, + substream->stream); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + reg_val = mmACP_BTTDM_ITER; + rv_writel(period_bytes, rtd->acp3x_base + + mmACP_BT_TX_INTR_WATERMARK_SIZE); + } else { + reg_val = mmACP_BTTDM_IRER; + rv_writel(period_bytes, rtd->acp3x_base + + mmACP_BT_RX_INTR_WATERMARK_SIZE); + } + val = rv_readl(rtd->acp3x_base + reg_val); + val = val | BIT(0); + rv_writel(val, rtd->acp3x_base + reg_val); + rv_writel(1, rtd->acp3x_base + mmACP_BTTDM_IER); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + reg_val = mmACP_BTTDM_ITER; + else + reg_val = mmACP_BTTDM_IRER; + + val = rv_readl(rtd->acp3x_base + reg_val); + val = val & ~BIT(0); + rv_writel(val, rtd->acp3x_base + reg_val); + rv_writel(0, rtd->acp3x_base + mmACP_BTTDM_IER); + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static struct snd_soc_dai_ops acp3x_i2s_dai_ops = { + .hw_params = acp3x_i2s_hwparams, + .trigger = acp3x_i2s_trigger, + .set_fmt = acp3x_i2s_set_fmt, + .set_tdm_slot = acp3x_i2s_set_tdm_slot, +}; + +static const struct snd_soc_component_driver acp3x_dai_component = { + .name = "acp3x-i2s", +}; + +static struct snd_soc_dai_driver acp3x_i2s_dai = { + .playback = { + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 8, + .rate_min = 8000, + .rate_max = 96000, + }, + .capture = { + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 2, + .rate_min = 8000, + .rate_max = 48000, + }, + .ops = &acp3x_i2s_dai_ops, +}; + +static int acp3x_dai_probe(struct platform_device *pdev) +{ + struct resource *res; + struct i2s_dev_data *adata; + int ret; + + adata = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dev_data), + GFP_KERNEL); + if (!adata) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n"); + return -ENOMEM; + } + adata->acp3x_base = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); + if (IS_ERR(adata->acp3x_base)) + return PTR_ERR(adata->acp3x_base); + + adata->i2s_irq = res->start; + dev_set_drvdata(&pdev->dev, adata); + ret = devm_snd_soc_register_component(&pdev->dev, + &acp3x_dai_component, &acp3x_i2s_dai, 1); + if (ret) { + dev_err(&pdev->dev, "Fail to register acp i2s dai\n"); + return -ENODEV; + } + return 0; +} + +static int acp3x_dai_remove(struct platform_device *pdev) +{ + /* As we use devm_ memory alloc there is nothing TBD here */ + + return 0; +} + +static struct platform_driver acp3x_dai_driver = { + .probe = acp3x_dai_probe, + .remove = acp3x_dai_remove, + .driver = { + .name = "acp3x_i2s_playcap", + }, +}; + +module_platform_driver(acp3x_dai_driver); + +MODULE_AUTHOR("Vishnuvardhanrao.Ravulapati@amd.com"); +MODULE_DESCRIPTION("AMD ACP 3.x PCM Driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRV_NAME); diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c index 9792104..9f6ea3e 100644 --- a/sound/soc/amd/raven/acp3x-pcm-dma.c +++ b/sound/soc/amd/raven/acp3x-pcm-dma.c @@ -9,7 +9,6 @@ #include <linux/err.h> #include <linux/io.h> #include <linux/pm_runtime.h> -#include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/soc-dai.h> @@ -18,24 +17,6 @@
#define DRV_NAME "acp3x-i2s-audio"
-struct i2s_dev_data { - bool tdm_mode; - unsigned int i2s_irq; - u32 tdm_fmt; - void __iomem *acp3x_base; - struct snd_pcm_substream *play_stream; - struct snd_pcm_substream *capture_stream; -}; - -struct i2s_stream_instance { - u16 num_pages; - u16 channels; - u32 xfer_resolution; - u64 bytescount; - dma_addr_t dma_addr; - void __iomem *acp3x_base; -}; - static const struct snd_pcm_hardware acp3x_pcm_hardware_playback = { .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | @@ -178,10 +159,11 @@ static int acp3x_deinit(void __iomem *acp3x_base)
static irqreturn_t i2s_irq_handler(int irq, void *dev_id) { + struct i2s_dev_data *rv_i2s_data; u16 play_flag, cap_flag; u32 val; - struct i2s_dev_data *rv_i2s_data = dev_id;
+ rv_i2s_data = dev_id; if (!rv_i2s_data) return IRQ_NONE;
@@ -278,11 +260,17 @@ static void config_acp3x_dma(struct i2s_stream_instance *rtd, int direction) static int acp3x_dma_open(struct snd_soc_component *component, struct snd_pcm_substream *substream) { - int ret = 0; - struct snd_pcm_runtime *runtime = substream->runtime; - struct i2s_dev_data *adata = dev_get_drvdata(component->dev); - struct i2s_stream_instance *i2s_data = kzalloc(sizeof(struct i2s_stream_instance), - GFP_KERNEL); + struct snd_pcm_runtime *runtime; + struct snd_soc_pcm_runtime *prtd; + struct i2s_dev_data *adata; + struct i2s_stream_instance *i2s_data; + int ret; + + runtime = substream->runtime; + prtd = substream->private_data; + component = snd_soc_rtdcom_lookup(prtd, DRV_NAME); + adata = dev_get_drvdata(component->dev); + i2s_data = kzalloc(sizeof(*i2s_data), GFP_KERNEL); if (!i2s_data) return -EINVAL;
@@ -312,23 +300,6 @@ static int acp3x_dma_open(struct snd_soc_component *component, return 0; }
-static u64 acp_get_byte_count(struct i2s_stream_instance *rtd, int direction) -{ - u64 byte_count; - - if (direction == SNDRV_PCM_STREAM_PLAYBACK) { - byte_count = rv_readl(rtd->acp3x_base + - mmACP_BT_TX_LINEARPOSITIONCNTR_HIGH); - byte_count |= rv_readl(rtd->acp3x_base + - mmACP_BT_TX_LINEARPOSITIONCNTR_LOW); - } else { - byte_count = rv_readl(rtd->acp3x_base + - mmACP_BT_RX_LINEARPOSITIONCNTR_HIGH); - byte_count |= rv_readl(rtd->acp3x_base + - mmACP_BT_RX_LINEARPOSITIONCNTR_LOW); - } - return byte_count; -}
static int acp3x_dma_hw_params(struct snd_soc_component *component, struct snd_pcm_substream *substream, @@ -351,12 +322,12 @@ static int acp3x_dma_hw_params(struct snd_soc_component *component, static snd_pcm_uframes_t acp3x_dma_pointer(struct snd_soc_component *component, struct snd_pcm_substream *substream) { - u32 pos = 0; - u32 buffersize = 0; - u64 bytescount = 0; - struct i2s_stream_instance *rtd = - substream->runtime->private_data; + struct i2s_stream_instance *rtd; + u32 pos; + u32 buffersize; + u64 bytescount;
+ rtd = substream->runtime->private_data; buffersize = frames_to_bytes(substream->runtime, substream->runtime->buffer_size); bytescount = acp_get_byte_count(rtd, substream->stream); @@ -385,8 +356,12 @@ static int acp3x_dma_mmap(struct snd_soc_component *component, static int acp3x_dma_close(struct snd_soc_component *component, struct snd_pcm_substream *substream) { - struct i2s_stream_instance *rtd = substream->runtime->private_data; - struct i2s_dev_data *adata = dev_get_drvdata(component->dev); + struct snd_soc_pcm_runtime *prtd; + struct i2s_dev_data *adata; + + prtd = substream->private_data; + component = snd_soc_rtdcom_lookup(prtd, DRV_NAME); + adata = dev_get_drvdata(component->dev);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) adata->play_stream = NULL; @@ -398,186 +373,9 @@ static int acp3x_dma_close(struct snd_soc_component *component, */ if (!adata->play_stream && !adata->capture_stream) rv_writel(0, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB); - kfree(rtd); return 0; }
-static int acp3x_dai_i2s_set_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt) -{ - - struct i2s_dev_data *adata = snd_soc_dai_get_drvdata(cpu_dai); - - switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { - case SND_SOC_DAIFMT_I2S: - adata->tdm_mode = false; - break; - case SND_SOC_DAIFMT_DSP_A: - adata->tdm_mode = true; - break; - default: - return -EINVAL; - } - - return 0; -} - -static int acp3x_dai_set_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask, - u32 rx_mask, int slots, int slot_width) -{ - u32 val = 0; - u16 slot_len; - - struct i2s_dev_data *adata = snd_soc_dai_get_drvdata(cpu_dai); - - switch (slot_width) { - case SLOT_WIDTH_8: - slot_len = 8; - break; - case SLOT_WIDTH_16: - slot_len = 16; - break; - case SLOT_WIDTH_24: - slot_len = 24; - break; - case SLOT_WIDTH_32: - slot_len = 0; - break; - default: - return -EINVAL; - } - - val = rv_readl(adata->acp3x_base + mmACP_BTTDM_ITER); - rv_writel((val | 0x2), adata->acp3x_base + mmACP_BTTDM_ITER); - val = rv_readl(adata->acp3x_base + mmACP_BTTDM_IRER); - rv_writel((val | 0x2), adata->acp3x_base + mmACP_BTTDM_IRER); - - val = (FRM_LEN | (slots << 15) | (slot_len << 18)); - rv_writel(val, adata->acp3x_base + mmACP_BTTDM_TXFRMT); - rv_writel(val, adata->acp3x_base + mmACP_BTTDM_RXFRMT); - - adata->tdm_fmt = val; - return 0; -} - -static int acp3x_dai_i2s_hwparams(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - u32 val = 0; - struct i2s_stream_instance *rtd = substream->runtime->private_data; - - switch (params_format(params)) { - case SNDRV_PCM_FORMAT_U8: - case SNDRV_PCM_FORMAT_S8: - rtd->xfer_resolution = 0x0; - break; - case SNDRV_PCM_FORMAT_S16_LE: - rtd->xfer_resolution = 0x02; - break; - case SNDRV_PCM_FORMAT_S24_LE: - rtd->xfer_resolution = 0x04; - break; - case SNDRV_PCM_FORMAT_S32_LE: - rtd->xfer_resolution = 0x05; - break; - default: - return -EINVAL; - } - val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER); - val = val | (rtd->xfer_resolution << 3); - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER); - else - rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER); - - return 0; -} - -static int acp3x_dai_i2s_trigger(struct snd_pcm_substream *substream, - int cmd, struct snd_soc_dai *dai) -{ - int ret = 0; - struct i2s_stream_instance *rtd = substream->runtime->private_data; - u32 val, period_bytes; - - period_bytes = frames_to_bytes(substream->runtime, - substream->runtime->period_size); - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - rtd->bytescount = acp_get_byte_count(rtd, substream->stream); - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - rv_writel(period_bytes, rtd->acp3x_base + - mmACP_BT_TX_INTR_WATERMARK_SIZE); - val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER); - val = val | BIT(0); - rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER); - } else { - rv_writel(period_bytes, rtd->acp3x_base + - mmACP_BT_RX_INTR_WATERMARK_SIZE); - val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_IRER); - val = val | BIT(0); - rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER); - } - rv_writel(1, rtd->acp3x_base + mmACP_BTTDM_IER); - break; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER); - val = val & ~BIT(0); - rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER); - } else { - val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_IRER); - val = val & ~BIT(0); - rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER); - } - rv_writel(0, rtd->acp3x_base + mmACP_BTTDM_IER); - break; - default: - ret = -EINVAL; - break; - } - - return ret; -} - -static struct snd_soc_dai_ops acp3x_dai_i2s_ops = { - .hw_params = acp3x_dai_i2s_hwparams, - .trigger = acp3x_dai_i2s_trigger, - .set_fmt = acp3x_dai_i2s_set_fmt, - .set_tdm_slot = acp3x_dai_set_tdm_slot, -}; - -static struct snd_soc_dai_driver acp3x_i2s_dai_driver = { - .playback = { - .rates = SNDRV_PCM_RATE_8000_96000, - .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | - SNDRV_PCM_FMTBIT_U8 | - SNDRV_PCM_FMTBIT_S24_LE | - SNDRV_PCM_FMTBIT_S32_LE, - .channels_min = 2, - .channels_max = 8, - - .rate_min = 8000, - .rate_max = 96000, - }, - .capture = { - .rates = SNDRV_PCM_RATE_8000_48000, - .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | - SNDRV_PCM_FMTBIT_U8 | - SNDRV_PCM_FMTBIT_S24_LE | - SNDRV_PCM_FMTBIT_S32_LE, - .channels_min = 2, - .channels_max = 2, - .rate_min = 8000, - .rate_max = 48000, - }, - .ops = &acp3x_dai_i2s_ops, -}; - static const struct snd_soc_component_driver acp3x_i2s_component = { .name = DRV_NAME, .open = acp3x_dma_open, @@ -590,10 +388,10 @@ static const struct snd_soc_component_driver acp3x_i2s_component = {
static int acp3x_audio_probe(struct platform_device *pdev) { - int status; struct resource *res; struct i2s_dev_data *adata; unsigned int irqflags; + int status, ret;
if (!pdev->dev.platform_data) { dev_err(&pdev->dev, "platform_data not retrieved\n"); @@ -603,7 +401,7 @@ static int acp3x_audio_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { - dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n"); + dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n"); return -ENODEV; }
@@ -613,6 +411,8 @@ static int acp3x_audio_probe(struct platform_device *pdev)
adata->acp3x_base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (!adata->acp3x_base) + return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (!res) { @@ -621,52 +421,54 @@ static int acp3x_audio_probe(struct platform_device *pdev) }
adata->i2s_irq = res->start; - adata->play_stream = NULL; - adata->capture_stream = NULL;
dev_set_drvdata(&pdev->dev, adata); /* Initialize ACP */ status = acp3x_init(adata->acp3x_base); if (status) return -ENODEV; + status = devm_snd_soc_register_component(&pdev->dev, &acp3x_i2s_component, - &acp3x_i2s_dai_driver, 1); + NULL, 0); if (status) { - dev_err(&pdev->dev, "Fail to register acp i2s dai\n"); + dev_err(&pdev->dev, "Fail to register acp i2s component\n"); + ret = -ENODEV; goto dev_err; } status = devm_request_irq(&pdev->dev, adata->i2s_irq, i2s_irq_handler, irqflags, "ACP3x_I2S_IRQ", adata); if (status) { dev_err(&pdev->dev, "ACP3x I2S IRQ request failed\n"); + ret = -ENODEV; goto dev_err; }
- pm_runtime_set_autosuspend_delay(&pdev->dev, 10000); + pm_runtime_set_autosuspend_delay(&pdev->dev, 5000); pm_runtime_use_autosuspend(&pdev->dev); pm_runtime_enable(&pdev->dev); return 0; + dev_err: status = acp3x_deinit(adata->acp3x_base); if (status) dev_err(&pdev->dev, "ACP de-init failed\n"); else - dev_info(&pdev->dev, "ACP de-initialized\n"); - /*ignore device status and return driver probe error*/ - return -ENODEV; + dev_dbg(&pdev->dev, "ACP de-initialized\n"); + return ret; }
static int acp3x_audio_remove(struct platform_device *pdev) { + struct i2s_dev_data *adata; int ret; - struct i2s_dev_data *adata = dev_get_drvdata(&pdev->dev);
+ adata = dev_get_drvdata(&pdev->dev); ret = acp3x_deinit(adata->acp3x_base); if (ret) dev_err(&pdev->dev, "ACP de-init failed\n"); else - dev_info(&pdev->dev, "ACP de-initialized\n"); + dev_dbg(&pdev->dev, "ACP de-initialized\n");
pm_runtime_disable(&pdev->dev); return 0; @@ -674,10 +476,11 @@ static int acp3x_audio_remove(struct platform_device *pdev)
static int acp3x_resume(struct device *dev) { + struct i2s_dev_data *adata; int status; u32 val; - struct i2s_dev_data *adata = dev_get_drvdata(dev);
+ adata = dev_get_drvdata(dev); status = acp3x_init(adata->acp3x_base); if (status) return -ENODEV; @@ -719,14 +522,15 @@ static int acp3x_resume(struct device *dev)
static int acp3x_pcm_runtime_suspend(struct device *dev) { + struct i2s_dev_data *adata; int status; - struct i2s_dev_data *adata = dev_get_drvdata(dev); + adata = dev_get_drvdata(dev);
status = acp3x_deinit(adata->acp3x_base); if (status) dev_err(dev, "ACP de-init failed\n"); else - dev_info(dev, "ACP de-initialized\n"); + dev_dbg(dev, "ACP de-initialized\n");
rv_writel(0, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB);
@@ -735,8 +539,9 @@ static int acp3x_pcm_runtime_suspend(struct device *dev)
static int acp3x_pcm_runtime_resume(struct device *dev) { + struct i2s_dev_data *adata; int status; - struct i2s_dev_data *adata = dev_get_drvdata(dev); + adata = dev_get_drvdata(dev);
status = acp3x_init(adata->acp3x_base); if (status) @@ -755,13 +560,14 @@ static struct platform_driver acp3x_dma_driver = { .probe = acp3x_audio_probe, .remove = acp3x_audio_remove, .driver = { - .name = "acp3x_rv_i2s", + .name = "acp3x_rv_i2s_dma", .pm = &acp3x_pm_ops, }, };
module_platform_driver(acp3x_dma_driver);
+MODULE_AUTHOR("Vishnuvardhanrao.Ravulapati@amd.com"); MODULE_AUTHOR("Maruthi.Bayyavarapu@amd.com"); MODULE_AUTHOR("Vijendar.Mukunda@amd.com"); MODULE_DESCRIPTION("AMD ACP 3.x PCM Driver"); diff --git a/sound/soc/amd/raven/acp3x.h b/sound/soc/amd/raven/acp3x.h index 2f15fe1..a1f03fc 100644 --- a/sound/soc/amd/raven/acp3x.h +++ b/sound/soc/amd/raven/acp3x.h @@ -6,6 +6,7 @@ */
#include "chip_offset_byte.h" +#include <sound/pcm.h>
#define ACP3x_DEVS 3 #define ACP3x_PHY_BASE_ADDRESS 0x1240000 @@ -51,6 +52,30 @@ #define SLOT_WIDTH_24 0x18 #define SLOT_WIDTH_32 0x20
+struct acp3x_platform_info { + u16 play_i2s_instance; + u16 cap_i2s_instance; + u16 capture_channel; +}; + +struct i2s_dev_data { + bool tdm_mode; + unsigned int i2s_irq; + u32 tdm_fmt; + u32 substream_type; + void __iomem *acp3x_base; + struct snd_pcm_substream *play_stream; + struct snd_pcm_substream *capture_stream; +}; + +struct i2s_stream_instance { + u16 num_pages; + u16 channels; + u32 xfer_resolution; + u64 bytescount; + dma_addr_t dma_addr; + void __iomem *acp3x_base; +};
static inline u32 rv_readl(void __iomem *base_addr) { @@ -61,3 +86,22 @@ static inline void rv_writel(u32 val, void __iomem *base_addr) { writel(val, base_addr - ACP3x_PHY_BASE_ADDRESS); } + +static inline u64 acp_get_byte_count(struct i2s_stream_instance *rtd, + int direction) +{ + u64 byte_count; + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + byte_count = rv_readl(rtd->acp3x_base + + mmACP_BT_TX_LINEARPOSITIONCNTR_HIGH); + byte_count |= rv_readl(rtd->acp3x_base + + mmACP_BT_TX_LINEARPOSITIONCNTR_LOW); + } else { + byte_count = rv_readl(rtd->acp3x_base + + mmACP_BT_RX_LINEARPOSITIONCNTR_HIGH); + byte_count |= rv_readl(rtd->acp3x_base + + mmACP_BT_RX_LINEARPOSITIONCNTR_LOW); + } + return byte_count; +}
The patch
ASoC: amd: Refactoring of DAI from DMA driver
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.6
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From c9fe7db6e884d0ab8c55d4ed4660fb19400acf2e Mon Sep 17 00:00:00 2001
From: Ravulapati Vishnu vardhan rao Vishnuvardhanrao.Ravulapati@amd.com Date: Sat, 28 Dec 2019 19:10:55 +0530 Subject: [PATCH] ASoC: amd: Refactoring of DAI from DMA driver
ASoC: PCM DMA driver should only have dma ops. So Removed all DAI related functionality.Refactoring the PCM DMA diver code.Added new file containing only DAI ops
Signed-off-by: Ravulapati Vishnu vardhan rao Vishnuvardhanrao.Ravulapati@amd.com Link: https://lore.kernel.org/r/1577540460-21438-2-git-send-email-Vishnuvardhanrao... Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/amd/raven/Makefile | 2 + sound/soc/amd/raven/acp3x-i2s.c | 261 +++++++++++++++++++++++++ sound/soc/amd/raven/acp3x-pcm-dma.c | 292 +++++----------------------- sound/soc/amd/raven/acp3x.h | 44 +++++ 4 files changed, 356 insertions(+), 243 deletions(-) create mode 100644 sound/soc/amd/raven/acp3x-i2s.c
diff --git a/sound/soc/amd/raven/Makefile b/sound/soc/amd/raven/Makefile index 108d1acf189b..62c22b6ed95a 100644 --- a/sound/soc/amd/raven/Makefile +++ b/sound/soc/amd/raven/Makefile @@ -2,5 +2,7 @@ # Raven Ridge platform Support snd-pci-acp3x-objs := pci-acp3x.o snd-acp3x-pcm-dma-objs := acp3x-pcm-dma.o +snd-acp3x-i2s-objs := acp3x-i2s.o obj-$(CONFIG_SND_SOC_AMD_ACP3x) += snd-pci-acp3x.o obj-$(CONFIG_SND_SOC_AMD_ACP3x) += snd-acp3x-pcm-dma.o +obj-$(CONFIG_SND_SOC_AMD_ACP3x) += snd-acp3x-i2s.o diff --git a/sound/soc/amd/raven/acp3x-i2s.c b/sound/soc/amd/raven/acp3x-i2s.c new file mode 100644 index 000000000000..d9bc0fc63185 --- /dev/null +++ b/sound/soc/amd/raven/acp3x-i2s.c @@ -0,0 +1,261 @@ +// SPDX-License-Identifier: GPL-2.0+ +// +// AMD ALSA SoC PCM Driver +// +//Copyright 2016 Advanced Micro Devices, Inc. + +#include <linux/platform_device.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/io.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dai.h> +#include <linux/dma-mapping.h> + +#include "acp3x.h" + +#define DRV_NAME "acp3x-i2s" + +static int acp3x_i2s_set_fmt(struct snd_soc_dai *cpu_dai, + unsigned int fmt) +{ + struct i2s_dev_data *adata; + int mode; + + adata = snd_soc_dai_get_drvdata(cpu_dai); + mode = fmt & SND_SOC_DAIFMT_FORMAT_MASK; + switch (mode) { + case SND_SOC_DAIFMT_I2S: + adata->tdm_mode = false; + break; + case SND_SOC_DAIFMT_DSP_A: + adata->tdm_mode = true; + break; + default: + return -EINVAL; + } + return 0; +} + +static int acp3x_i2s_set_tdm_slot(struct snd_soc_dai *cpu_dai, + u32 tx_mask, u32 rx_mask, int slots, int slot_width) +{ + struct i2s_dev_data *adata; + u32 val, reg_val, frmt_val, frm_len; + u16 slot_len; + + adata = snd_soc_dai_get_drvdata(cpu_dai); + + /* These values are as per Hardware Spec */ + switch (slot_width) { + case SLOT_WIDTH_8: + slot_len = 8; + break; + case SLOT_WIDTH_16: + slot_len = 16; + break; + case SLOT_WIDTH_24: + slot_len = 24; + break; + case SLOT_WIDTH_32: + slot_len = 0; + break; + default: + return -EINVAL; + } + + /* Enable I2S/BT channels TDM, respective TX/RX frame lengths.*/ + + frm_len = FRM_LEN | (slots << 15) | (slot_len << 18); + if (adata->substream_type == SNDRV_PCM_STREAM_PLAYBACK) { + reg_val = mmACP_BTTDM_ITER; + frmt_val = mmACP_BTTDM_TXFRMT; + } else { + reg_val = mmACP_BTTDM_IRER; + frmt_val = mmACP_BTTDM_RXFRMT; + } + val = rv_readl(adata->acp3x_base + reg_val); + rv_writel(val | 0x2, adata->acp3x_base + reg_val); + rv_writel(frm_len, adata->acp3x_base + frmt_val); + adata->tdm_fmt = frm_len; + return 0; +} + +static int acp3x_i2s_hwparams(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) +{ + struct i2s_stream_instance *rtd; + u32 val; + u32 reg_val; + + rtd = substream->runtime->private_data; + + /* These values are as per Hardware Spec */ + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_U8: + case SNDRV_PCM_FORMAT_S8: + rtd->xfer_resolution = 0x0; + break; + case SNDRV_PCM_FORMAT_S16_LE: + rtd->xfer_resolution = 0x02; + break; + case SNDRV_PCM_FORMAT_S24_LE: + rtd->xfer_resolution = 0x04; + break; + case SNDRV_PCM_FORMAT_S32_LE: + rtd->xfer_resolution = 0x05; + break; + default: + return -EINVAL; + } + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + reg_val = mmACP_BTTDM_ITER; + else + reg_val = mmACP_BTTDM_IRER; + + val = rv_readl(rtd->acp3x_base + reg_val); + val = val | (rtd->xfer_resolution << 3); + rv_writel(val, rtd->acp3x_base + reg_val); + return 0; +} + +static int acp3x_i2s_trigger(struct snd_pcm_substream *substream, + int cmd, struct snd_soc_dai *dai) +{ + struct i2s_stream_instance *rtd; + u32 val, period_bytes; + int ret, reg_val; + + rtd = substream->runtime->private_data; + period_bytes = frames_to_bytes(substream->runtime, + substream->runtime->period_size); + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + rtd->bytescount = acp_get_byte_count(rtd, + substream->stream); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + reg_val = mmACP_BTTDM_ITER; + rv_writel(period_bytes, rtd->acp3x_base + + mmACP_BT_TX_INTR_WATERMARK_SIZE); + } else { + reg_val = mmACP_BTTDM_IRER; + rv_writel(period_bytes, rtd->acp3x_base + + mmACP_BT_RX_INTR_WATERMARK_SIZE); + } + val = rv_readl(rtd->acp3x_base + reg_val); + val = val | BIT(0); + rv_writel(val, rtd->acp3x_base + reg_val); + rv_writel(1, rtd->acp3x_base + mmACP_BTTDM_IER); + break; + case SNDRV_PCM_TRIGGER_STOP: + case SNDRV_PCM_TRIGGER_SUSPEND: + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + reg_val = mmACP_BTTDM_ITER; + else + reg_val = mmACP_BTTDM_IRER; + + val = rv_readl(rtd->acp3x_base + reg_val); + val = val & ~BIT(0); + rv_writel(val, rtd->acp3x_base + reg_val); + rv_writel(0, rtd->acp3x_base + mmACP_BTTDM_IER); + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + +static struct snd_soc_dai_ops acp3x_i2s_dai_ops = { + .hw_params = acp3x_i2s_hwparams, + .trigger = acp3x_i2s_trigger, + .set_fmt = acp3x_i2s_set_fmt, + .set_tdm_slot = acp3x_i2s_set_tdm_slot, +}; + +static const struct snd_soc_component_driver acp3x_dai_component = { + .name = "acp3x-i2s", +}; + +static struct snd_soc_dai_driver acp3x_i2s_dai = { + .playback = { + .rates = SNDRV_PCM_RATE_8000_96000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 8, + .rate_min = 8000, + .rate_max = 96000, + }, + .capture = { + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | + SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S32_LE, + .channels_min = 2, + .channels_max = 2, + .rate_min = 8000, + .rate_max = 48000, + }, + .ops = &acp3x_i2s_dai_ops, +}; + +static int acp3x_dai_probe(struct platform_device *pdev) +{ + struct resource *res; + struct i2s_dev_data *adata; + int ret; + + adata = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dev_data), + GFP_KERNEL); + if (!adata) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n"); + return -ENOMEM; + } + adata->acp3x_base = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); + if (IS_ERR(adata->acp3x_base)) + return PTR_ERR(adata->acp3x_base); + + adata->i2s_irq = res->start; + dev_set_drvdata(&pdev->dev, adata); + ret = devm_snd_soc_register_component(&pdev->dev, + &acp3x_dai_component, &acp3x_i2s_dai, 1); + if (ret) { + dev_err(&pdev->dev, "Fail to register acp i2s dai\n"); + return -ENODEV; + } + return 0; +} + +static int acp3x_dai_remove(struct platform_device *pdev) +{ + /* As we use devm_ memory alloc there is nothing TBD here */ + + return 0; +} + +static struct platform_driver acp3x_dai_driver = { + .probe = acp3x_dai_probe, + .remove = acp3x_dai_remove, + .driver = { + .name = "acp3x_i2s_playcap", + }, +}; + +module_platform_driver(acp3x_dai_driver); + +MODULE_AUTHOR("Vishnuvardhanrao.Ravulapati@amd.com"); +MODULE_DESCRIPTION("AMD ACP 3.x PCM Driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:" DRV_NAME); diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c index 97921046afff..9f6ea3ef2441 100644 --- a/sound/soc/amd/raven/acp3x-pcm-dma.c +++ b/sound/soc/amd/raven/acp3x-pcm-dma.c @@ -9,7 +9,6 @@ #include <linux/err.h> #include <linux/io.h> #include <linux/pm_runtime.h> -#include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/soc-dai.h> @@ -18,24 +17,6 @@
#define DRV_NAME "acp3x-i2s-audio"
-struct i2s_dev_data { - bool tdm_mode; - unsigned int i2s_irq; - u32 tdm_fmt; - void __iomem *acp3x_base; - struct snd_pcm_substream *play_stream; - struct snd_pcm_substream *capture_stream; -}; - -struct i2s_stream_instance { - u16 num_pages; - u16 channels; - u32 xfer_resolution; - u64 bytescount; - dma_addr_t dma_addr; - void __iomem *acp3x_base; -}; - static const struct snd_pcm_hardware acp3x_pcm_hardware_playback = { .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | @@ -178,10 +159,11 @@ static int acp3x_deinit(void __iomem *acp3x_base)
static irqreturn_t i2s_irq_handler(int irq, void *dev_id) { + struct i2s_dev_data *rv_i2s_data; u16 play_flag, cap_flag; u32 val; - struct i2s_dev_data *rv_i2s_data = dev_id;
+ rv_i2s_data = dev_id; if (!rv_i2s_data) return IRQ_NONE;
@@ -278,11 +260,17 @@ static void config_acp3x_dma(struct i2s_stream_instance *rtd, int direction) static int acp3x_dma_open(struct snd_soc_component *component, struct snd_pcm_substream *substream) { - int ret = 0; - struct snd_pcm_runtime *runtime = substream->runtime; - struct i2s_dev_data *adata = dev_get_drvdata(component->dev); - struct i2s_stream_instance *i2s_data = kzalloc(sizeof(struct i2s_stream_instance), - GFP_KERNEL); + struct snd_pcm_runtime *runtime; + struct snd_soc_pcm_runtime *prtd; + struct i2s_dev_data *adata; + struct i2s_stream_instance *i2s_data; + int ret; + + runtime = substream->runtime; + prtd = substream->private_data; + component = snd_soc_rtdcom_lookup(prtd, DRV_NAME); + adata = dev_get_drvdata(component->dev); + i2s_data = kzalloc(sizeof(*i2s_data), GFP_KERNEL); if (!i2s_data) return -EINVAL;
@@ -312,23 +300,6 @@ static int acp3x_dma_open(struct snd_soc_component *component, return 0; }
-static u64 acp_get_byte_count(struct i2s_stream_instance *rtd, int direction) -{ - u64 byte_count; - - if (direction == SNDRV_PCM_STREAM_PLAYBACK) { - byte_count = rv_readl(rtd->acp3x_base + - mmACP_BT_TX_LINEARPOSITIONCNTR_HIGH); - byte_count |= rv_readl(rtd->acp3x_base + - mmACP_BT_TX_LINEARPOSITIONCNTR_LOW); - } else { - byte_count = rv_readl(rtd->acp3x_base + - mmACP_BT_RX_LINEARPOSITIONCNTR_HIGH); - byte_count |= rv_readl(rtd->acp3x_base + - mmACP_BT_RX_LINEARPOSITIONCNTR_LOW); - } - return byte_count; -}
static int acp3x_dma_hw_params(struct snd_soc_component *component, struct snd_pcm_substream *substream, @@ -351,12 +322,12 @@ static int acp3x_dma_hw_params(struct snd_soc_component *component, static snd_pcm_uframes_t acp3x_dma_pointer(struct snd_soc_component *component, struct snd_pcm_substream *substream) { - u32 pos = 0; - u32 buffersize = 0; - u64 bytescount = 0; - struct i2s_stream_instance *rtd = - substream->runtime->private_data; + struct i2s_stream_instance *rtd; + u32 pos; + u32 buffersize; + u64 bytescount;
+ rtd = substream->runtime->private_data; buffersize = frames_to_bytes(substream->runtime, substream->runtime->buffer_size); bytescount = acp_get_byte_count(rtd, substream->stream); @@ -385,8 +356,12 @@ static int acp3x_dma_mmap(struct snd_soc_component *component, static int acp3x_dma_close(struct snd_soc_component *component, struct snd_pcm_substream *substream) { - struct i2s_stream_instance *rtd = substream->runtime->private_data; - struct i2s_dev_data *adata = dev_get_drvdata(component->dev); + struct snd_soc_pcm_runtime *prtd; + struct i2s_dev_data *adata; + + prtd = substream->private_data; + component = snd_soc_rtdcom_lookup(prtd, DRV_NAME); + adata = dev_get_drvdata(component->dev);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) adata->play_stream = NULL; @@ -398,186 +373,9 @@ static int acp3x_dma_close(struct snd_soc_component *component, */ if (!adata->play_stream && !adata->capture_stream) rv_writel(0, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB); - kfree(rtd); return 0; }
-static int acp3x_dai_i2s_set_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt) -{ - - struct i2s_dev_data *adata = snd_soc_dai_get_drvdata(cpu_dai); - - switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { - case SND_SOC_DAIFMT_I2S: - adata->tdm_mode = false; - break; - case SND_SOC_DAIFMT_DSP_A: - adata->tdm_mode = true; - break; - default: - return -EINVAL; - } - - return 0; -} - -static int acp3x_dai_set_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask, - u32 rx_mask, int slots, int slot_width) -{ - u32 val = 0; - u16 slot_len; - - struct i2s_dev_data *adata = snd_soc_dai_get_drvdata(cpu_dai); - - switch (slot_width) { - case SLOT_WIDTH_8: - slot_len = 8; - break; - case SLOT_WIDTH_16: - slot_len = 16; - break; - case SLOT_WIDTH_24: - slot_len = 24; - break; - case SLOT_WIDTH_32: - slot_len = 0; - break; - default: - return -EINVAL; - } - - val = rv_readl(adata->acp3x_base + mmACP_BTTDM_ITER); - rv_writel((val | 0x2), adata->acp3x_base + mmACP_BTTDM_ITER); - val = rv_readl(adata->acp3x_base + mmACP_BTTDM_IRER); - rv_writel((val | 0x2), adata->acp3x_base + mmACP_BTTDM_IRER); - - val = (FRM_LEN | (slots << 15) | (slot_len << 18)); - rv_writel(val, adata->acp3x_base + mmACP_BTTDM_TXFRMT); - rv_writel(val, adata->acp3x_base + mmACP_BTTDM_RXFRMT); - - adata->tdm_fmt = val; - return 0; -} - -static int acp3x_dai_i2s_hwparams(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - u32 val = 0; - struct i2s_stream_instance *rtd = substream->runtime->private_data; - - switch (params_format(params)) { - case SNDRV_PCM_FORMAT_U8: - case SNDRV_PCM_FORMAT_S8: - rtd->xfer_resolution = 0x0; - break; - case SNDRV_PCM_FORMAT_S16_LE: - rtd->xfer_resolution = 0x02; - break; - case SNDRV_PCM_FORMAT_S24_LE: - rtd->xfer_resolution = 0x04; - break; - case SNDRV_PCM_FORMAT_S32_LE: - rtd->xfer_resolution = 0x05; - break; - default: - return -EINVAL; - } - val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER); - val = val | (rtd->xfer_resolution << 3); - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER); - else - rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER); - - return 0; -} - -static int acp3x_dai_i2s_trigger(struct snd_pcm_substream *substream, - int cmd, struct snd_soc_dai *dai) -{ - int ret = 0; - struct i2s_stream_instance *rtd = substream->runtime->private_data; - u32 val, period_bytes; - - period_bytes = frames_to_bytes(substream->runtime, - substream->runtime->period_size); - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - case SNDRV_PCM_TRIGGER_RESUME: - case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: - rtd->bytescount = acp_get_byte_count(rtd, substream->stream); - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - rv_writel(period_bytes, rtd->acp3x_base + - mmACP_BT_TX_INTR_WATERMARK_SIZE); - val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER); - val = val | BIT(0); - rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER); - } else { - rv_writel(period_bytes, rtd->acp3x_base + - mmACP_BT_RX_INTR_WATERMARK_SIZE); - val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_IRER); - val = val | BIT(0); - rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER); - } - rv_writel(1, rtd->acp3x_base + mmACP_BTTDM_IER); - break; - case SNDRV_PCM_TRIGGER_STOP: - case SNDRV_PCM_TRIGGER_SUSPEND: - case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER); - val = val & ~BIT(0); - rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER); - } else { - val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_IRER); - val = val & ~BIT(0); - rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER); - } - rv_writel(0, rtd->acp3x_base + mmACP_BTTDM_IER); - break; - default: - ret = -EINVAL; - break; - } - - return ret; -} - -static struct snd_soc_dai_ops acp3x_dai_i2s_ops = { - .hw_params = acp3x_dai_i2s_hwparams, - .trigger = acp3x_dai_i2s_trigger, - .set_fmt = acp3x_dai_i2s_set_fmt, - .set_tdm_slot = acp3x_dai_set_tdm_slot, -}; - -static struct snd_soc_dai_driver acp3x_i2s_dai_driver = { - .playback = { - .rates = SNDRV_PCM_RATE_8000_96000, - .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | - SNDRV_PCM_FMTBIT_U8 | - SNDRV_PCM_FMTBIT_S24_LE | - SNDRV_PCM_FMTBIT_S32_LE, - .channels_min = 2, - .channels_max = 8, - - .rate_min = 8000, - .rate_max = 96000, - }, - .capture = { - .rates = SNDRV_PCM_RATE_8000_48000, - .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | - SNDRV_PCM_FMTBIT_U8 | - SNDRV_PCM_FMTBIT_S24_LE | - SNDRV_PCM_FMTBIT_S32_LE, - .channels_min = 2, - .channels_max = 2, - .rate_min = 8000, - .rate_max = 48000, - }, - .ops = &acp3x_dai_i2s_ops, -}; - static const struct snd_soc_component_driver acp3x_i2s_component = { .name = DRV_NAME, .open = acp3x_dma_open, @@ -590,10 +388,10 @@ static const struct snd_soc_component_driver acp3x_i2s_component = {
static int acp3x_audio_probe(struct platform_device *pdev) { - int status; struct resource *res; struct i2s_dev_data *adata; unsigned int irqflags; + int status, ret;
if (!pdev->dev.platform_data) { dev_err(&pdev->dev, "platform_data not retrieved\n"); @@ -603,7 +401,7 @@ static int acp3x_audio_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { - dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n"); + dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n"); return -ENODEV; }
@@ -613,6 +411,8 @@ static int acp3x_audio_probe(struct platform_device *pdev)
adata->acp3x_base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (!adata->acp3x_base) + return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (!res) { @@ -621,52 +421,54 @@ static int acp3x_audio_probe(struct platform_device *pdev) }
adata->i2s_irq = res->start; - adata->play_stream = NULL; - adata->capture_stream = NULL;
dev_set_drvdata(&pdev->dev, adata); /* Initialize ACP */ status = acp3x_init(adata->acp3x_base); if (status) return -ENODEV; + status = devm_snd_soc_register_component(&pdev->dev, &acp3x_i2s_component, - &acp3x_i2s_dai_driver, 1); + NULL, 0); if (status) { - dev_err(&pdev->dev, "Fail to register acp i2s dai\n"); + dev_err(&pdev->dev, "Fail to register acp i2s component\n"); + ret = -ENODEV; goto dev_err; } status = devm_request_irq(&pdev->dev, adata->i2s_irq, i2s_irq_handler, irqflags, "ACP3x_I2S_IRQ", adata); if (status) { dev_err(&pdev->dev, "ACP3x I2S IRQ request failed\n"); + ret = -ENODEV; goto dev_err; }
- pm_runtime_set_autosuspend_delay(&pdev->dev, 10000); + pm_runtime_set_autosuspend_delay(&pdev->dev, 5000); pm_runtime_use_autosuspend(&pdev->dev); pm_runtime_enable(&pdev->dev); return 0; + dev_err: status = acp3x_deinit(adata->acp3x_base); if (status) dev_err(&pdev->dev, "ACP de-init failed\n"); else - dev_info(&pdev->dev, "ACP de-initialized\n"); - /*ignore device status and return driver probe error*/ - return -ENODEV; + dev_dbg(&pdev->dev, "ACP de-initialized\n"); + return ret; }
static int acp3x_audio_remove(struct platform_device *pdev) { + struct i2s_dev_data *adata; int ret; - struct i2s_dev_data *adata = dev_get_drvdata(&pdev->dev);
+ adata = dev_get_drvdata(&pdev->dev); ret = acp3x_deinit(adata->acp3x_base); if (ret) dev_err(&pdev->dev, "ACP de-init failed\n"); else - dev_info(&pdev->dev, "ACP de-initialized\n"); + dev_dbg(&pdev->dev, "ACP de-initialized\n");
pm_runtime_disable(&pdev->dev); return 0; @@ -674,10 +476,11 @@ static int acp3x_audio_remove(struct platform_device *pdev)
static int acp3x_resume(struct device *dev) { + struct i2s_dev_data *adata; int status; u32 val; - struct i2s_dev_data *adata = dev_get_drvdata(dev);
+ adata = dev_get_drvdata(dev); status = acp3x_init(adata->acp3x_base); if (status) return -ENODEV; @@ -719,14 +522,15 @@ static int acp3x_resume(struct device *dev)
static int acp3x_pcm_runtime_suspend(struct device *dev) { + struct i2s_dev_data *adata; int status; - struct i2s_dev_data *adata = dev_get_drvdata(dev); + adata = dev_get_drvdata(dev);
status = acp3x_deinit(adata->acp3x_base); if (status) dev_err(dev, "ACP de-init failed\n"); else - dev_info(dev, "ACP de-initialized\n"); + dev_dbg(dev, "ACP de-initialized\n");
rv_writel(0, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB);
@@ -735,8 +539,9 @@ static int acp3x_pcm_runtime_suspend(struct device *dev)
static int acp3x_pcm_runtime_resume(struct device *dev) { + struct i2s_dev_data *adata; int status; - struct i2s_dev_data *adata = dev_get_drvdata(dev); + adata = dev_get_drvdata(dev);
status = acp3x_init(adata->acp3x_base); if (status) @@ -755,13 +560,14 @@ static struct platform_driver acp3x_dma_driver = { .probe = acp3x_audio_probe, .remove = acp3x_audio_remove, .driver = { - .name = "acp3x_rv_i2s", + .name = "acp3x_rv_i2s_dma", .pm = &acp3x_pm_ops, }, };
module_platform_driver(acp3x_dma_driver);
+MODULE_AUTHOR("Vishnuvardhanrao.Ravulapati@amd.com"); MODULE_AUTHOR("Maruthi.Bayyavarapu@amd.com"); MODULE_AUTHOR("Vijendar.Mukunda@amd.com"); MODULE_DESCRIPTION("AMD ACP 3.x PCM Driver"); diff --git a/sound/soc/amd/raven/acp3x.h b/sound/soc/amd/raven/acp3x.h index 2f15fe10ead5..a1f03fce68fa 100644 --- a/sound/soc/amd/raven/acp3x.h +++ b/sound/soc/amd/raven/acp3x.h @@ -6,6 +6,7 @@ */
#include "chip_offset_byte.h" +#include <sound/pcm.h>
#define ACP3x_DEVS 3 #define ACP3x_PHY_BASE_ADDRESS 0x1240000 @@ -51,6 +52,30 @@ #define SLOT_WIDTH_24 0x18 #define SLOT_WIDTH_32 0x20
+struct acp3x_platform_info { + u16 play_i2s_instance; + u16 cap_i2s_instance; + u16 capture_channel; +}; + +struct i2s_dev_data { + bool tdm_mode; + unsigned int i2s_irq; + u32 tdm_fmt; + u32 substream_type; + void __iomem *acp3x_base; + struct snd_pcm_substream *play_stream; + struct snd_pcm_substream *capture_stream; +}; + +struct i2s_stream_instance { + u16 num_pages; + u16 channels; + u32 xfer_resolution; + u64 bytescount; + dma_addr_t dma_addr; + void __iomem *acp3x_base; +};
static inline u32 rv_readl(void __iomem *base_addr) { @@ -61,3 +86,22 @@ static inline void rv_writel(u32 val, void __iomem *base_addr) { writel(val, base_addr - ACP3x_PHY_BASE_ADDRESS); } + +static inline u64 acp_get_byte_count(struct i2s_stream_instance *rtd, + int direction) +{ + u64 byte_count; + + if (direction == SNDRV_PCM_STREAM_PLAYBACK) { + byte_count = rv_readl(rtd->acp3x_base + + mmACP_BT_TX_LINEARPOSITIONCNTR_HIGH); + byte_count |= rv_readl(rtd->acp3x_base + + mmACP_BT_TX_LINEARPOSITIONCNTR_LOW); + } else { + byte_count = rv_readl(rtd->acp3x_base + + mmACP_BT_RX_LINEARPOSITIONCNTR_HIGH); + byte_count |= rv_readl(rtd->acp3x_base + + mmACP_BT_RX_LINEARPOSITIONCNTR_LOW); + } + return byte_count; +}
participants (2)
-
Mark Brown -
Ravulapati Vishnu vardhan rao