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 <[email protected]>
---
sound/soc/amd/raven/Makefile | 2 +
sound/soc/amd/raven/acp3x-i2s.c | 263 +++++++++++++++++++++++++++++++
sound/soc/amd/raven/acp3x-pcm-dma.c | 305 +++++++-----------------------------
sound/soc/amd/raven/acp3x.h | 43 +++++
4 files changed, 367 insertions(+), 246 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..1e2485e
--- /dev/null
+++ b/sound/soc/amd/raven/acp3x-i2s.c
@@ -0,0 +1,263 @@
+// 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.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("[email protected]");
+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 60709e3..0202737 100644
--- a/sound/soc/amd/raven/acp3x-pcm-dma.c
+++ b/sound/soc/amd/raven/acp3x-pcm-dma.c
@@ -18,24 +18,6 @@
#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 +160,11 @@ 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 +261,18 @@ 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(struct i2s_stream_instance),
+ GFP_KERNEL);
if (!i2s_data)
return -EINVAL;
@@ -312,33 +302,18 @@ 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,
struct snd_pcm_hw_params *params)
{
+ struct snd_pcm_runtime *runtime;
+ struct i2s_stream_instance *rtd;
int status;
u64 size;
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct i2s_stream_instance *rtd = runtime->private_data;
+ runtime = substream->runtime;
+ rtd = substream->private_data;
if (!rtd)
return -EINVAL;
@@ -362,12 +337,12 @@ 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);
@@ -380,7 +355,10 @@ static snd_pcm_uframes_t acp3x_dma_pointer(struct snd_soc_component *component,
static int acp3x_dma_new(struct snd_soc_component *component,
struct snd_soc_pcm_runtime *rtd)
{
- struct device *parent = component->dev->parent;
+ struct device *parent;
+
+ component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
+ parent = component->dev->parent;
snd_pcm_lib_preallocate_pages_for_all(rtd->pcm, SNDRV_DMA_TYPE_DEV,
parent, MIN_BUFFER, MAX_BUFFER);
return 0;
@@ -402,8 +380,12 @@ 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;
@@ -415,186 +397,9 @@ 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,
@@ -609,10 +414,10 @@ 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");
@@ -622,7 +427,7 @@ 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;
}
@@ -632,60 +437,64 @@ 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) {
dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
- return -ENODEV;
+ return -ENOMEM;
}
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;
@@ -693,10 +502,11 @@ 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;
@@ -738,14 +548,15 @@ 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);
@@ -754,8 +565,9 @@ 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)
@@ -774,13 +586,14 @@ 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("[email protected]");
MODULE_AUTHOR("[email protected]");
MODULE_AUTHOR("[email protected]");
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..a6c6d63 100644
--- a/sound/soc/amd/raven/acp3x.h
+++ b/sound/soc/amd/raven/acp3x.h
@@ -51,6 +51,30 @@
#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 +85,22 @@ 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;
+}
--
2.7.4
On 11/21/19 5:45 AM, Ravulapati Vishnu vardhan rao wrote:
> 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.
CHECK: Please don't use multiple blank lines
#246: FILE: sound/soc/amd/raven/acp3x-i2s.c:210:
+
+
CHECK: Prefer kzalloc(sizeof(*i2s_data)...) over kzalloc(sizeof(struct
i2s_stream_instance)...)
#361: FILE: sound/soc/amd/raven/acp3x-pcm-dma.c:274:
+ i2s_data = kzalloc(sizeof(struct i2s_stream_instance),
>
> Signed-off-by: Ravulapati Vishnu vardhan rao <[email protected]>
> ---
> sound/soc/amd/raven/Makefile | 2 +
> sound/soc/amd/raven/acp3x-i2s.c | 263 +++++++++++++++++++++++++++++++
> sound/soc/amd/raven/acp3x-pcm-dma.c | 305 +++++++-----------------------------
> sound/soc/amd/raven/acp3x.h | 43 +++++
> 4 files changed, 367 insertions(+), 246 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..1e2485e
> --- /dev/null
> +++ b/sound/soc/amd/raven/acp3x-i2s.c
> @@ -0,0 +1,263 @@
> +// 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.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("[email protected]");
> +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 60709e3..0202737 100644
> --- a/sound/soc/amd/raven/acp3x-pcm-dma.c
> +++ b/sound/soc/amd/raven/acp3x-pcm-dma.c
> @@ -18,24 +18,6 @@
>
> #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 +160,11 @@ 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 +261,18 @@ 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(struct i2s_stream_instance),
> + GFP_KERNEL);
> if (!i2s_data)
> return -EINVAL;
>
> @@ -312,33 +302,18 @@ 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,
> struct snd_pcm_hw_params *params)
> {
> + struct snd_pcm_runtime *runtime;
> + struct i2s_stream_instance *rtd;
> int status;
> u64 size;
> - struct snd_pcm_runtime *runtime = substream->runtime;
> - struct i2s_stream_instance *rtd = runtime->private_data;
>
> + runtime = substream->runtime;
> + rtd = substream->private_data;
> if (!rtd)
> return -EINVAL;
>
> @@ -362,12 +337,12 @@ 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);
> @@ -380,7 +355,10 @@ static snd_pcm_uframes_t acp3x_dma_pointer(struct snd_soc_component *component,
> static int acp3x_dma_new(struct snd_soc_component *component,
> struct snd_soc_pcm_runtime *rtd)
> {
> - struct device *parent = component->dev->parent;
> + struct device *parent;
> +
> + component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
> + parent = component->dev->parent;
> snd_pcm_lib_preallocate_pages_for_all(rtd->pcm, SNDRV_DMA_TYPE_DEV,
> parent, MIN_BUFFER, MAX_BUFFER);
> return 0;
> @@ -402,8 +380,12 @@ 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;
> @@ -415,186 +397,9 @@ 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,
> @@ -609,10 +414,10 @@ 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");
> @@ -622,7 +427,7 @@ 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;
> }
>
> @@ -632,60 +437,64 @@ 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) {
> dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
> - return -ENODEV;
> + return -ENOMEM;
> }
>
> 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;
> @@ -693,10 +502,11 @@ 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;
> @@ -738,14 +548,15 @@ 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);
>
> @@ -754,8 +565,9 @@ 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)
> @@ -774,13 +586,14 @@ 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("[email protected]");
> MODULE_AUTHOR("[email protected]");
> MODULE_AUTHOR("[email protected]");
> 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..a6c6d63 100644
> --- a/sound/soc/amd/raven/acp3x.h
> +++ b/sound/soc/amd/raven/acp3x.h
> @@ -51,6 +51,30 @@
> #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 +85,22 @@ 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;
> +}
>