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linuxdebug/sound/soc/mediatek/mt6797/mt6797-afe-pcm.c

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null pointer error
2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0
//
// Mediatek ALSA SoC AFE platform driver for 6797
//
// Copyright (c) 2018 MediaTek Inc.
// Author: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/mfd/syscon.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/pm_runtime.h>
#include "mt6797-afe-common.h"
#include "mt6797-afe-clk.h"
#include "mt6797-interconnection.h"
#include "mt6797-reg.h"
#include "../common/mtk-afe-platform-driver.h"
#include "../common/mtk-afe-fe-dai.h"
enum {
MTK_AFE_RATE_8K = 0,
MTK_AFE_RATE_11K = 1,
MTK_AFE_RATE_12K = 2,
MTK_AFE_RATE_384K = 3,
MTK_AFE_RATE_16K = 4,
MTK_AFE_RATE_22K = 5,
MTK_AFE_RATE_24K = 6,
MTK_AFE_RATE_130K = 7,
MTK_AFE_RATE_32K = 8,
MTK_AFE_RATE_44K = 9,
MTK_AFE_RATE_48K = 10,
MTK_AFE_RATE_88K = 11,
MTK_AFE_RATE_96K = 12,
MTK_AFE_RATE_174K = 13,
MTK_AFE_RATE_192K = 14,
MTK_AFE_RATE_260K = 15,
};
enum {
MTK_AFE_DAI_MEMIF_RATE_8K = 0,
MTK_AFE_DAI_MEMIF_RATE_16K = 1,
MTK_AFE_DAI_MEMIF_RATE_32K = 2,
};
enum {
MTK_AFE_PCM_RATE_8K = 0,
MTK_AFE_PCM_RATE_16K = 1,
MTK_AFE_PCM_RATE_32K = 2,
MTK_AFE_PCM_RATE_48K = 3,
};
unsigned int mt6797_general_rate_transform(struct device *dev,
unsigned int rate)
{
switch (rate) {
case 8000:
return MTK_AFE_RATE_8K;
case 11025:
return MTK_AFE_RATE_11K;
case 12000:
return MTK_AFE_RATE_12K;
case 16000:
return MTK_AFE_RATE_16K;
case 22050:
return MTK_AFE_RATE_22K;
case 24000:
return MTK_AFE_RATE_24K;
case 32000:
return MTK_AFE_RATE_32K;
case 44100:
return MTK_AFE_RATE_44K;
case 48000:
return MTK_AFE_RATE_48K;
case 88200:
return MTK_AFE_RATE_88K;
case 96000:
return MTK_AFE_RATE_96K;
case 130000:
return MTK_AFE_RATE_130K;
case 176400:
return MTK_AFE_RATE_174K;
case 192000:
return MTK_AFE_RATE_192K;
case 260000:
return MTK_AFE_RATE_260K;
default:
dev_warn(dev, "%s(), rate %u invalid, use %d!!!\n",
__func__, rate, MTK_AFE_RATE_48K);
return MTK_AFE_RATE_48K;
}
}
static unsigned int dai_memif_rate_transform(struct device *dev,
unsigned int rate)
{
switch (rate) {
case 8000:
return MTK_AFE_DAI_MEMIF_RATE_8K;
case 16000:
return MTK_AFE_DAI_MEMIF_RATE_16K;
case 32000:
return MTK_AFE_DAI_MEMIF_RATE_32K;
default:
dev_warn(dev, "%s(), rate %u invalid, use %d!!!\n",
__func__, rate, MTK_AFE_DAI_MEMIF_RATE_16K);
return MTK_AFE_DAI_MEMIF_RATE_16K;
}
}
unsigned int mt6797_rate_transform(struct device *dev,
unsigned int rate, int aud_blk)
{
switch (aud_blk) {
case MT6797_MEMIF_DAI:
case MT6797_MEMIF_MOD_DAI:
return dai_memif_rate_transform(dev, rate);
default:
return mt6797_general_rate_transform(dev, rate);
}
}
static const struct snd_pcm_hardware mt6797_afe_hardware = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP_VALID,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S32_LE,
.period_bytes_min = 256,
.period_bytes_max = 4 * 48 * 1024,
.periods_min = 2,
.periods_max = 256,
.buffer_bytes_max = 8 * 48 * 1024,
.fifo_size = 0,
};
static int mt6797_memif_fs(struct snd_pcm_substream *substream,
unsigned int rate)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct snd_soc_component *component =
snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
int id = asoc_rtd_to_cpu(rtd, 0)->id;
return mt6797_rate_transform(afe->dev, rate, id);
}
static int mt6797_irq_fs(struct snd_pcm_substream *substream, unsigned int rate)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct snd_soc_component *component =
snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
struct mtk_base_afe *afe = snd_soc_component_get_drvdata(component);
return mt6797_general_rate_transform(afe->dev, rate);
}
#define MTK_PCM_RATES (SNDRV_PCM_RATE_8000_48000 |\
SNDRV_PCM_RATE_88200 |\
SNDRV_PCM_RATE_96000 |\
SNDRV_PCM_RATE_176400 |\
SNDRV_PCM_RATE_192000)
#define MTK_PCM_DAI_RATES (SNDRV_PCM_RATE_8000 |\
SNDRV_PCM_RATE_16000 |\
SNDRV_PCM_RATE_32000)
#define MTK_PCM_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
SNDRV_PCM_FMTBIT_S24_LE |\
SNDRV_PCM_FMTBIT_S32_LE)
static struct snd_soc_dai_driver mt6797_memif_dai_driver[] = {
/* FE DAIs: memory intefaces to CPU */
{
.name = "DL1",
.id = MT6797_MEMIF_DL1,
.playback = {
.stream_name = "DL1",
.channels_min = 1,
.channels_max = 2,
.rates = MTK_PCM_RATES,
.formats = MTK_PCM_FORMATS,
},
.ops = &mtk_afe_fe_ops,
},
{
.name = "DL2",
.id = MT6797_MEMIF_DL2,
.playback = {
.stream_name = "DL2",
.channels_min = 1,
.channels_max = 2,
.rates = MTK_PCM_RATES,
.formats = MTK_PCM_FORMATS,
},
.ops = &mtk_afe_fe_ops,
},
{
.name = "DL3",
.id = MT6797_MEMIF_DL3,
.playback = {
.stream_name = "DL3",
.channels_min = 1,
.channels_max = 2,
.rates = MTK_PCM_RATES,
.formats = MTK_PCM_FORMATS,
},
.ops = &mtk_afe_fe_ops,
},
{
.name = "UL1",
.id = MT6797_MEMIF_VUL12,
.capture = {
.stream_name = "UL1",
.channels_min = 1,
.channels_max = 2,
.rates = MTK_PCM_RATES,
.formats = MTK_PCM_FORMATS,
},
.ops = &mtk_afe_fe_ops,
},
{
.name = "UL2",
.id = MT6797_MEMIF_AWB,
.capture = {
.stream_name = "UL2",
.channels_min = 1,
.channels_max = 2,
.rates = MTK_PCM_RATES,
.formats = MTK_PCM_FORMATS,
},
.ops = &mtk_afe_fe_ops,
},
{
.name = "UL3",
.id = MT6797_MEMIF_VUL,
.capture = {
.stream_name = "UL3",
.channels_min = 1,
.channels_max = 2,
.rates = MTK_PCM_RATES,
.formats = MTK_PCM_FORMATS,
},
.ops = &mtk_afe_fe_ops,
},
{
.name = "UL_MONO_1",
.id = MT6797_MEMIF_MOD_DAI,
.capture = {
.stream_name = "UL_MONO_1",
.channels_min = 1,
.channels_max = 1,
.rates = MTK_PCM_DAI_RATES,
.formats = MTK_PCM_FORMATS,
},
.ops = &mtk_afe_fe_ops,
},
{
.name = "UL_MONO_2",
.id = MT6797_MEMIF_DAI,
.capture = {
.stream_name = "UL_MONO_2",
.channels_min = 1,
.channels_max = 1,
.rates = MTK_PCM_DAI_RATES,
.formats = MTK_PCM_FORMATS,
},
.ops = &mtk_afe_fe_ops,
},
};
/* dma widget & routes*/
static const struct snd_kcontrol_new memif_ul1_ch1_mix[] = {
SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN21,
I_ADDA_UL_CH1, 1, 0),
};
static const struct snd_kcontrol_new memif_ul1_ch2_mix[] = {
SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN22,
I_ADDA_UL_CH2, 1, 0),
};
static const struct snd_kcontrol_new memif_ul2_ch1_mix[] = {
SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN5,
I_ADDA_UL_CH1, 1, 0),
SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH1", AFE_CONN5,
I_DL1_CH1, 1, 0),
SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH1", AFE_CONN5,
I_DL2_CH1, 1, 0),
SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH1", AFE_CONN5,
I_DL3_CH1, 1, 0),
};
static const struct snd_kcontrol_new memif_ul2_ch2_mix[] = {
SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN6,
I_ADDA_UL_CH2, 1, 0),
SOC_DAPM_SINGLE_AUTODISABLE("DL1_CH2", AFE_CONN6,
I_DL1_CH2, 1, 0),
SOC_DAPM_SINGLE_AUTODISABLE("DL2_CH2", AFE_CONN6,
I_DL2_CH2, 1, 0),
SOC_DAPM_SINGLE_AUTODISABLE("DL3_CH2", AFE_CONN6,
I_DL3_CH2, 1, 0),
};
static const struct snd_kcontrol_new memif_ul3_ch1_mix[] = {
SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN9,
I_ADDA_UL_CH1, 1, 0),
};
static const struct snd_kcontrol_new memif_ul3_ch2_mix[] = {
SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN10,
I_ADDA_UL_CH2, 1, 0),
};
static const struct snd_kcontrol_new memif_ul_mono_1_mix[] = {
SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN12,
I_ADDA_UL_CH1, 1, 0),
SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN12,
I_ADDA_UL_CH2, 1, 0),
};
static const struct snd_kcontrol_new memif_ul_mono_2_mix[] = {
SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH1", AFE_CONN11,
I_ADDA_UL_CH1, 1, 0),
SOC_DAPM_SINGLE_AUTODISABLE("ADDA_UL_CH2", AFE_CONN11,
I_ADDA_UL_CH2, 1, 0),
};
static const struct snd_soc_dapm_widget mt6797_memif_widgets[] = {
/* memif */
SND_SOC_DAPM_MIXER("UL1_CH1", SND_SOC_NOPM, 0, 0,
memif_ul1_ch1_mix, ARRAY_SIZE(memif_ul1_ch1_mix)),
SND_SOC_DAPM_MIXER("UL1_CH2", SND_SOC_NOPM, 0, 0,
memif_ul1_ch2_mix, ARRAY_SIZE(memif_ul1_ch2_mix)),
SND_SOC_DAPM_MIXER("UL2_CH1", SND_SOC_NOPM, 0, 0,
memif_ul2_ch1_mix, ARRAY_SIZE(memif_ul2_ch1_mix)),
SND_SOC_DAPM_MIXER("UL2_CH2", SND_SOC_NOPM, 0, 0,
memif_ul2_ch2_mix, ARRAY_SIZE(memif_ul2_ch2_mix)),
SND_SOC_DAPM_MIXER("UL3_CH1", SND_SOC_NOPM, 0, 0,
memif_ul3_ch1_mix, ARRAY_SIZE(memif_ul3_ch1_mix)),
SND_SOC_DAPM_MIXER("UL3_CH2", SND_SOC_NOPM, 0, 0,
memif_ul3_ch2_mix, ARRAY_SIZE(memif_ul3_ch2_mix)),
SND_SOC_DAPM_MIXER("UL_MONO_1_CH1", SND_SOC_NOPM, 0, 0,
memif_ul_mono_1_mix,
ARRAY_SIZE(memif_ul_mono_1_mix)),
SND_SOC_DAPM_MIXER("UL_MONO_2_CH1", SND_SOC_NOPM, 0, 0,
memif_ul_mono_2_mix,
ARRAY_SIZE(memif_ul_mono_2_mix)),
};
static const struct snd_soc_dapm_route mt6797_memif_routes[] = {
/* capture */
{"UL1", NULL, "UL1_CH1"},
{"UL1", NULL, "UL1_CH2"},
{"UL1_CH1", "ADDA_UL_CH1", "ADDA Capture"},
{"UL1_CH2", "ADDA_UL_CH2", "ADDA Capture"},
{"UL2", NULL, "UL2_CH1"},
{"UL2", NULL, "UL2_CH2"},
{"UL2_CH1", "ADDA_UL_CH1", "ADDA Capture"},
{"UL2_CH2", "ADDA_UL_CH2", "ADDA Capture"},
{"UL3", NULL, "UL3_CH1"},
{"UL3", NULL, "UL3_CH2"},
{"UL3_CH1", "ADDA_UL_CH1", "ADDA Capture"},
{"UL3_CH2", "ADDA_UL_CH2", "ADDA Capture"},
{"UL_MONO_1", NULL, "UL_MONO_1_CH1"},
{"UL_MONO_1_CH1", "ADDA_UL_CH1", "ADDA Capture"},
{"UL_MONO_1_CH1", "ADDA_UL_CH2", "ADDA Capture"},
{"UL_MONO_2", NULL, "UL_MONO_2_CH1"},
{"UL_MONO_2_CH1", "ADDA_UL_CH1", "ADDA Capture"},
{"UL_MONO_2_CH1", "ADDA_UL_CH2", "ADDA Capture"},
};
static const struct snd_soc_component_driver mt6797_afe_pcm_dai_component = {
.name = "mt6797-afe-pcm-dai",
};
static const struct mtk_base_memif_data memif_data[MT6797_MEMIF_NUM] = {
[MT6797_MEMIF_DL1] = {
.name = "DL1",
.id = MT6797_MEMIF_DL1,
.reg_ofs_base = AFE_DL1_BASE,
.reg_ofs_cur = AFE_DL1_CUR,
.fs_reg = AFE_DAC_CON1,
.fs_shift = DL1_MODE_SFT,
.fs_maskbit = DL1_MODE_MASK,
.mono_reg = AFE_DAC_CON1,
.mono_shift = DL1_DATA_SFT,
.enable_reg = AFE_DAC_CON0,
.enable_shift = DL1_ON_SFT,
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = DL1_HD_SFT,
.agent_disable_reg = -1,
.msb_reg = -1,
},
[MT6797_MEMIF_DL2] = {
.name = "DL2",
.id = MT6797_MEMIF_DL2,
.reg_ofs_base = AFE_DL2_BASE,
.reg_ofs_cur = AFE_DL2_CUR,
.fs_reg = AFE_DAC_CON1,
.fs_shift = DL2_MODE_SFT,
.fs_maskbit = DL2_MODE_MASK,
.mono_reg = AFE_DAC_CON1,
.mono_shift = DL2_DATA_SFT,
.enable_reg = AFE_DAC_CON0,
.enable_shift = DL2_ON_SFT,
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = DL2_HD_SFT,
.agent_disable_reg = -1,
.msb_reg = -1,
},
[MT6797_MEMIF_DL3] = {
.name = "DL3",
.id = MT6797_MEMIF_DL3,
.reg_ofs_base = AFE_DL3_BASE,
.reg_ofs_cur = AFE_DL3_CUR,
.fs_reg = AFE_DAC_CON0,
.fs_shift = DL3_MODE_SFT,
.fs_maskbit = DL3_MODE_MASK,
.mono_reg = AFE_DAC_CON1,
.mono_shift = DL3_DATA_SFT,
.enable_reg = AFE_DAC_CON0,
.enable_shift = DL3_ON_SFT,
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = DL3_HD_SFT,
.agent_disable_reg = -1,
.msb_reg = -1,
},
[MT6797_MEMIF_VUL] = {
.name = "VUL",
.id = MT6797_MEMIF_VUL,
.reg_ofs_base = AFE_VUL_BASE,
.reg_ofs_cur = AFE_VUL_CUR,
.fs_reg = AFE_DAC_CON1,
.fs_shift = VUL_MODE_SFT,
.fs_maskbit = VUL_MODE_MASK,
.mono_reg = AFE_DAC_CON1,
.mono_shift = VUL_DATA_SFT,
.enable_reg = AFE_DAC_CON0,
.enable_shift = VUL_ON_SFT,
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = VUL_HD_SFT,
.agent_disable_reg = -1,
.msb_reg = -1,
},
[MT6797_MEMIF_AWB] = {
.name = "AWB",
.id = MT6797_MEMIF_AWB,
.reg_ofs_base = AFE_AWB_BASE,
.reg_ofs_cur = AFE_AWB_CUR,
.fs_reg = AFE_DAC_CON1,
.fs_shift = AWB_MODE_SFT,
.fs_maskbit = AWB_MODE_MASK,
.mono_reg = AFE_DAC_CON1,
.mono_shift = AWB_DATA_SFT,
.enable_reg = AFE_DAC_CON0,
.enable_shift = AWB_ON_SFT,
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = AWB_HD_SFT,
.agent_disable_reg = -1,
.msb_reg = -1,
},
[MT6797_MEMIF_VUL12] = {
.name = "VUL12",
.id = MT6797_MEMIF_VUL12,
.reg_ofs_base = AFE_VUL_D2_BASE,
.reg_ofs_cur = AFE_VUL_D2_CUR,
.fs_reg = AFE_DAC_CON0,
.fs_shift = VUL_DATA2_MODE_SFT,
.fs_maskbit = VUL_DATA2_MODE_MASK,
.mono_reg = AFE_DAC_CON0,
.mono_shift = VUL_DATA2_DATA_SFT,
.enable_reg = AFE_DAC_CON0,
.enable_shift = VUL_DATA2_ON_SFT,
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = VUL_DATA2_HD_SFT,
.agent_disable_reg = -1,
.msb_reg = -1,
},
[MT6797_MEMIF_DAI] = {
.name = "DAI",
.id = MT6797_MEMIF_DAI,
.reg_ofs_base = AFE_DAI_BASE,
.reg_ofs_cur = AFE_DAI_CUR,
.fs_reg = AFE_DAC_CON0,
.fs_shift = DAI_MODE_SFT,
.fs_maskbit = DAI_MODE_MASK,
.mono_reg = -1,
.mono_shift = 0,
.enable_reg = AFE_DAC_CON0,
.enable_shift = DAI_ON_SFT,
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = DAI_HD_SFT,
.agent_disable_reg = -1,
.msb_reg = -1,
},
[MT6797_MEMIF_MOD_DAI] = {
.name = "MOD_DAI",
.id = MT6797_MEMIF_MOD_DAI,
.reg_ofs_base = AFE_MOD_DAI_BASE,
.reg_ofs_cur = AFE_MOD_DAI_CUR,
.fs_reg = AFE_DAC_CON1,
.fs_shift = MOD_DAI_MODE_SFT,
.fs_maskbit = MOD_DAI_MODE_MASK,
.mono_reg = -1,
.mono_shift = 0,
.enable_reg = AFE_DAC_CON0,
.enable_shift = MOD_DAI_ON_SFT,
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = MOD_DAI_HD_SFT,
.agent_disable_reg = -1,
.msb_reg = -1,
},
};
static const struct mtk_base_irq_data irq_data[MT6797_IRQ_NUM] = {
[MT6797_IRQ_1] = {
.id = MT6797_IRQ_1,
.irq_cnt_reg = AFE_IRQ_MCU_CNT1,
.irq_cnt_shift = AFE_IRQ_MCU_CNT1_SFT,
.irq_cnt_maskbit = AFE_IRQ_MCU_CNT1_MASK,
.irq_fs_reg = AFE_IRQ_MCU_CON,
.irq_fs_shift = IRQ1_MCU_MODE_SFT,
.irq_fs_maskbit = IRQ1_MCU_MODE_MASK,
.irq_en_reg = AFE_IRQ_MCU_CON,
.irq_en_shift = IRQ1_MCU_ON_SFT,
.irq_clr_reg = AFE_IRQ_MCU_CLR,
.irq_clr_shift = IRQ1_MCU_CLR_SFT,
},
[MT6797_IRQ_2] = {
.id = MT6797_IRQ_2,
.irq_cnt_reg = AFE_IRQ_MCU_CNT2,
.irq_cnt_shift = AFE_IRQ_MCU_CNT2_SFT,
.irq_cnt_maskbit = AFE_IRQ_MCU_CNT2_MASK,
.irq_fs_reg = AFE_IRQ_MCU_CON,
.irq_fs_shift = IRQ2_MCU_MODE_SFT,
.irq_fs_maskbit = IRQ2_MCU_MODE_MASK,
.irq_en_reg = AFE_IRQ_MCU_CON,
.irq_en_shift = IRQ2_MCU_ON_SFT,
.irq_clr_reg = AFE_IRQ_MCU_CLR,
.irq_clr_shift = IRQ2_MCU_CLR_SFT,
},
[MT6797_IRQ_3] = {
.id = MT6797_IRQ_3,
.irq_cnt_reg = AFE_IRQ_MCU_CNT3,
.irq_cnt_shift = AFE_IRQ_MCU_CNT3_SFT,
.irq_cnt_maskbit = AFE_IRQ_MCU_CNT3_MASK,
.irq_fs_reg = AFE_IRQ_MCU_CON,
.irq_fs_shift = IRQ3_MCU_MODE_SFT,
.irq_fs_maskbit = IRQ3_MCU_MODE_MASK,
.irq_en_reg = AFE_IRQ_MCU_CON,
.irq_en_shift = IRQ3_MCU_ON_SFT,
.irq_clr_reg = AFE_IRQ_MCU_CLR,
.irq_clr_shift = IRQ3_MCU_CLR_SFT,
},
[MT6797_IRQ_4] = {
.id = MT6797_IRQ_4,
.irq_cnt_reg = AFE_IRQ_MCU_CNT4,
.irq_cnt_shift = AFE_IRQ_MCU_CNT4_SFT,
.irq_cnt_maskbit = AFE_IRQ_MCU_CNT4_MASK,
.irq_fs_reg = AFE_IRQ_MCU_CON,
.irq_fs_shift = IRQ4_MCU_MODE_SFT,
.irq_fs_maskbit = IRQ4_MCU_MODE_MASK,
.irq_en_reg = AFE_IRQ_MCU_CON,
.irq_en_shift = IRQ4_MCU_ON_SFT,
.irq_clr_reg = AFE_IRQ_MCU_CLR,
.irq_clr_shift = IRQ4_MCU_CLR_SFT,
},
[MT6797_IRQ_7] = {
.id = MT6797_IRQ_7,
.irq_cnt_reg = AFE_IRQ_MCU_CNT7,
.irq_cnt_shift = AFE_IRQ_MCU_CNT7_SFT,
.irq_cnt_maskbit = AFE_IRQ_MCU_CNT7_MASK,
.irq_fs_reg = AFE_IRQ_MCU_CON,
.irq_fs_shift = IRQ7_MCU_MODE_SFT,
.irq_fs_maskbit = IRQ7_MCU_MODE_MASK,
.irq_en_reg = AFE_IRQ_MCU_CON,
.irq_en_shift = IRQ7_MCU_ON_SFT,
.irq_clr_reg = AFE_IRQ_MCU_CLR,
.irq_clr_shift = IRQ7_MCU_CLR_SFT,
},
};
static const struct regmap_config mt6797_afe_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = AFE_MAX_REGISTER,
};
static irqreturn_t mt6797_afe_irq_handler(int irq_id, void *dev)
{
struct mtk_base_afe *afe = dev;
struct mtk_base_afe_irq *irq;
unsigned int status;
unsigned int mcu_en;
int ret;
int i;
irqreturn_t irq_ret = IRQ_HANDLED;
/* get irq that is sent to MCU */
regmap_read(afe->regmap, AFE_IRQ_MCU_EN, &mcu_en);
ret = regmap_read(afe->regmap, AFE_IRQ_MCU_STATUS, &status);
if (ret || (status & mcu_en) == 0) {
dev_err(afe->dev, "%s(), irq status err, ret %d, status 0x%x, mcu_en 0x%x\n",
__func__, ret, status, mcu_en);
/* only clear IRQ which is sent to MCU */
status = mcu_en & AFE_IRQ_STATUS_BITS;
irq_ret = IRQ_NONE;
goto err_irq;
}
for (i = 0; i < MT6797_MEMIF_NUM; i++) {
struct mtk_base_afe_memif *memif = &afe->memif[i];
if (!memif->substream)
continue;
irq = &afe->irqs[memif->irq_usage];
if (status & (1 << irq->irq_data->irq_en_shift))
snd_pcm_period_elapsed(memif->substream);
}
err_irq:
/* clear irq */
regmap_write(afe->regmap,
AFE_IRQ_MCU_CLR,
status & AFE_IRQ_STATUS_BITS);
return irq_ret;
}
static int mt6797_afe_runtime_suspend(struct device *dev)
{
struct mtk_base_afe *afe = dev_get_drvdata(dev);
unsigned int afe_on_retm;
int retry = 0;
/* disable AFE */
regmap_update_bits(afe->regmap, AFE_DAC_CON0, AFE_ON_MASK_SFT, 0x0);
do {
regmap_read(afe->regmap, AFE_DAC_CON0, &afe_on_retm);
if ((afe_on_retm & AFE_ON_RETM_MASK_SFT) == 0)
break;
udelay(10);
} while (++retry < 100000);
if (retry)
dev_warn(afe->dev, "%s(), retry %d\n", __func__, retry);
/* make sure all irq status are cleared */
regmap_update_bits(afe->regmap, AFE_IRQ_MCU_CLR, 0xffff, 0xffff);
return mt6797_afe_disable_clock(afe);
}
static int mt6797_afe_runtime_resume(struct device *dev)
{
struct mtk_base_afe *afe = dev_get_drvdata(dev);
int ret;
ret = mt6797_afe_enable_clock(afe);
if (ret)
return ret;
/* irq signal to mcu only */
regmap_write(afe->regmap, AFE_IRQ_MCU_EN, AFE_IRQ_MCU_EN_MASK_SFT);
/* force all memif use normal mode */
regmap_update_bits(afe->regmap, AFE_MEMIF_HDALIGN,
0x7ff << 16, 0x7ff << 16);
/* force cpu use normal mode when access sram data */
regmap_update_bits(afe->regmap, AFE_MEMIF_MSB,
CPU_COMPACT_MODE_MASK_SFT, 0);
/* force cpu use 8_24 format when writing 32bit data */
regmap_update_bits(afe->regmap, AFE_MEMIF_MSB,
CPU_HD_ALIGN_MASK_SFT, 0);
/* set all output port to 24bit */
regmap_update_bits(afe->regmap, AFE_CONN_24BIT,
0x3fffffff, 0x3fffffff);
/* enable AFE */
regmap_update_bits(afe->regmap, AFE_DAC_CON0,
AFE_ON_MASK_SFT,
0x1 << AFE_ON_SFT);
return 0;
}
static int mt6797_afe_component_probe(struct snd_soc_component *component)
{
return mtk_afe_add_sub_dai_control(component);
}
static const struct snd_soc_component_driver mt6797_afe_component = {
.name = AFE_PCM_NAME,
.probe = mt6797_afe_component_probe,
.pointer = mtk_afe_pcm_pointer,
.pcm_construct = mtk_afe_pcm_new,
};
static int mt6797_dai_memif_register(struct mtk_base_afe *afe)
{
struct mtk_base_afe_dai *dai;
dai = devm_kzalloc(afe->dev, sizeof(*dai), GFP_KERNEL);
if (!dai)
return -ENOMEM;
list_add(&dai->list, &afe->sub_dais);
dai->dai_drivers = mt6797_memif_dai_driver;
dai->num_dai_drivers = ARRAY_SIZE(mt6797_memif_dai_driver);
dai->dapm_widgets = mt6797_memif_widgets;
dai->num_dapm_widgets = ARRAY_SIZE(mt6797_memif_widgets);
dai->dapm_routes = mt6797_memif_routes;
dai->num_dapm_routes = ARRAY_SIZE(mt6797_memif_routes);
return 0;
}
typedef int (*dai_register_cb)(struct mtk_base_afe *);
static const dai_register_cb dai_register_cbs[] = {
mt6797_dai_adda_register,
mt6797_dai_pcm_register,
mt6797_dai_hostless_register,
mt6797_dai_memif_register,
};
static int mt6797_afe_pcm_dev_probe(struct platform_device *pdev)
{
struct mtk_base_afe *afe;
struct mt6797_afe_private *afe_priv;
struct device *dev;
int i, irq_id, ret;
afe = devm_kzalloc(&pdev->dev, sizeof(*afe), GFP_KERNEL);
if (!afe)
return -ENOMEM;
afe->platform_priv = devm_kzalloc(&pdev->dev, sizeof(*afe_priv),
GFP_KERNEL);
if (!afe->platform_priv)
return -ENOMEM;
afe_priv = afe->platform_priv;
afe->dev = &pdev->dev;
dev = afe->dev;
/* initial audio related clock */
ret = mt6797_init_clock(afe);
if (ret) {
dev_err(dev, "init clock error\n");
return ret;
}
/* regmap init */
afe->base_addr = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(afe->base_addr))
return PTR_ERR(afe->base_addr);
afe->regmap = devm_regmap_init_mmio(&pdev->dev, afe->base_addr,
&mt6797_afe_regmap_config);
if (IS_ERR(afe->regmap))
return PTR_ERR(afe->regmap);
/* init memif */
afe->memif_size = MT6797_MEMIF_NUM;
afe->memif = devm_kcalloc(dev, afe->memif_size, sizeof(*afe->memif),
GFP_KERNEL);
if (!afe->memif)
return -ENOMEM;
for (i = 0; i < afe->memif_size; i++) {
afe->memif[i].data = &memif_data[i];
afe->memif[i].irq_usage = -1;
}
mutex_init(&afe->irq_alloc_lock);
/* irq initialize */
afe->irqs_size = MT6797_IRQ_NUM;
afe->irqs = devm_kcalloc(dev, afe->irqs_size, sizeof(*afe->irqs),
GFP_KERNEL);
if (!afe->irqs)
return -ENOMEM;
for (i = 0; i < afe->irqs_size; i++)
afe->irqs[i].irq_data = &irq_data[i];
/* request irq */
irq_id = platform_get_irq(pdev, 0);
if (irq_id < 0)
return irq_id;
ret = devm_request_irq(dev, irq_id, mt6797_afe_irq_handler,
IRQF_TRIGGER_NONE, "asys-isr", (void *)afe);
if (ret) {
dev_err(dev, "could not request_irq for asys-isr\n");
return ret;
}
/* init sub_dais */
INIT_LIST_HEAD(&afe->sub_dais);
for (i = 0; i < ARRAY_SIZE(dai_register_cbs); i++) {
ret = dai_register_cbs[i](afe);
if (ret) {
dev_warn(afe->dev, "dai register i %d fail, ret %d\n",
i, ret);
return ret;
}
}
/* init dai_driver and component_driver */
ret = mtk_afe_combine_sub_dai(afe);
if (ret) {
dev_warn(afe->dev, "mtk_afe_combine_sub_dai fail, ret %d\n",
ret);
return ret;
}
afe->mtk_afe_hardware = &mt6797_afe_hardware;
afe->memif_fs = mt6797_memif_fs;
afe->irq_fs = mt6797_irq_fs;
afe->runtime_resume = mt6797_afe_runtime_resume;
afe->runtime_suspend = mt6797_afe_runtime_suspend;
platform_set_drvdata(pdev, afe);
pm_runtime_enable(dev);
if (!pm_runtime_enabled(dev))
goto err_pm_disable;
pm_runtime_get_sync(&pdev->dev);
/* register component */
ret = devm_snd_soc_register_component(dev, &mt6797_afe_component,
NULL, 0);
if (ret) {
dev_warn(dev, "err_platform\n");
goto err_pm_disable;
}
ret = devm_snd_soc_register_component(afe->dev,
&mt6797_afe_pcm_dai_component,
afe->dai_drivers,
afe->num_dai_drivers);
if (ret) {
dev_warn(dev, "err_dai_component\n");
goto err_pm_disable;
}
return 0;
err_pm_disable:
pm_runtime_disable(dev);
return ret;
}
static int mt6797_afe_pcm_dev_remove(struct platform_device *pdev)
{
pm_runtime_disable(&pdev->dev);
if (!pm_runtime_status_suspended(&pdev->dev))
mt6797_afe_runtime_suspend(&pdev->dev);
pm_runtime_put_sync(&pdev->dev);
return 0;
}
static const struct of_device_id mt6797_afe_pcm_dt_match[] = {
{ .compatible = "mediatek,mt6797-audio", },
{},
};
MODULE_DEVICE_TABLE(of, mt6797_afe_pcm_dt_match);
static const struct dev_pm_ops mt6797_afe_pm_ops = {
SET_RUNTIME_PM_OPS(mt6797_afe_runtime_suspend,
mt6797_afe_runtime_resume, NULL)
};
static struct platform_driver mt6797_afe_pcm_driver = {
.driver = {
.name = "mt6797-audio",
.of_match_table = mt6797_afe_pcm_dt_match,
.pm = &mt6797_afe_pm_ops,
},
.probe = mt6797_afe_pcm_dev_probe,
.remove = mt6797_afe_pcm_dev_remove,
};
module_platform_driver(mt6797_afe_pcm_driver);
MODULE_DESCRIPTION("Mediatek ALSA SoC AFE platform driver for 6797");
MODULE_AUTHOR("KaiChieh Chuang <kaichieh.chuang@mediatek.com>");
MODULE_LICENSE("GPL v2");