* [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format
@ 2017-09-15 0:30 Ryan Lee
2017-09-15 0:30 ` [PATCH 2/2] ASoC: max98927: Added max98927_dai_tdm_slot function Ryan Lee
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: Ryan Lee @ 2017-09-15 0:30 UTC (permalink / raw)
To: lgirdwood, broonie, perex, tiwai, ryans.lee, alsa-devel, linux-kernel
Cc: ryan.lee.maxim
Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
---
sound/soc/codecs/max98927.c | 35 ++++++++++++++++++++---------------
sound/soc/codecs/max98927.h | 6 ++++--
2 files changed, 24 insertions(+), 17 deletions(-)
diff --git a/sound/soc/codecs/max98927.c b/sound/soc/codecs/max98927.c
index d9dbbe7..6f7b3ef 100644
--- a/sound/soc/codecs/max98927.c
+++ b/sound/soc/codecs/max98927.c
@@ -1,7 +1,7 @@
/*
* max98927.c -- MAX98927 ALSA Soc Audio driver
*
- * Copyright (C) 2016 Maxim Integrated Products
+ * Copyright (C) 2016-2017 Maxim Integrated Products
* Author: Ryan Lee <ryans.lee@maximintegrated.com>
*
* This program is free software; you can redistribute it and/or modify it
@@ -146,6 +146,7 @@ static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
unsigned int mode = 0;
unsigned int format = 0;
+ bool use_pdm = false;
unsigned int invert = 0;
dev_dbg(codec->dev, "%s: fmt 0x%08X\n", __func__, fmt);
@@ -187,22 +188,27 @@ static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
/* interface format */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
- max98927->iface |= SND_SOC_DAIFMT_I2S;
format = MAX98927_PCM_FORMAT_I2S;
break;
case SND_SOC_DAIFMT_LEFT_J:
- max98927->iface |= SND_SOC_DAIFMT_LEFT_J;
format = MAX98927_PCM_FORMAT_LJ;
break;
+ case SND_SOC_DAIFMT_DSP_A:
+ format = MAX98927_PCM_FORMAT_TDM_MODE1;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ format = MAX98927_PCM_FORMAT_TDM_MODE0;
+ break;
case SND_SOC_DAIFMT_PDM:
- max98927->iface |= SND_SOC_DAIFMT_PDM;
+ use_pdm = true;
break;
default:
return -EINVAL;
}
+ max98927->iface = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
- /* pcm channel configuration */
- if (max98927->iface & (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_LEFT_J)) {
+ if (!use_pdm) {
+ /* pcm channel configuration */
regmap_update_bits(max98927->regmap,
MAX98927_R0018_PCM_RX_EN_A,
MAX98927_PCM_RX_CH0_EN | MAX98927_PCM_RX_CH1_EN,
@@ -217,13 +223,11 @@ static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
MAX98927_R003B_SPK_SRC_SEL,
MAX98927_SPK_SRC_MASK, 0);
- } else
regmap_update_bits(max98927->regmap,
- MAX98927_R0018_PCM_RX_EN_A,
- MAX98927_PCM_RX_CH0_EN | MAX98927_PCM_RX_CH1_EN, 0);
-
- /* pdm channel configuration */
- if (max98927->iface & SND_SOC_DAIFMT_PDM) {
+ MAX98927_R0035_PDM_RX_CTRL,
+ MAX98927_PDM_RX_EN_MASK, 0);
+ } else {
+ /* pdm channel configuration */
regmap_update_bits(max98927->regmap,
MAX98927_R0035_PDM_RX_CTRL,
MAX98927_PDM_RX_EN_MASK, 1);
@@ -231,10 +235,11 @@ static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
regmap_update_bits(max98927->regmap,
MAX98927_R003B_SPK_SRC_SEL,
MAX98927_SPK_SRC_MASK, 3);
- } else
+
regmap_update_bits(max98927->regmap,
- MAX98927_R0035_PDM_RX_CTRL,
- MAX98927_PDM_RX_EN_MASK, 0);
+ MAX98927_R0018_PCM_RX_EN_A,
+ MAX98927_PCM_RX_CH0_EN | MAX98927_PCM_RX_CH1_EN, 0);
+ }
return 0;
}
diff --git a/sound/soc/codecs/max98927.h b/sound/soc/codecs/max98927.h
index ece6a60..bf7a6f92 100644
--- a/sound/soc/codecs/max98927.h
+++ b/sound/soc/codecs/max98927.h
@@ -1,7 +1,7 @@
/*
* max98927.h -- MAX98927 ALSA Soc Audio driver
*
- * Copyright 2013-15 Maxim Integrated Products
+ * Copyright (C) 2016-2017 Maxim Integrated Products
* Author: Ryan Lee <ryans.lee@maximintegrated.com>
*
* This program is free software; you can redistribute it and/or modify it
@@ -161,7 +161,9 @@
#define MAX98927_PCM_MODE_CFG_FORMAT_SHIFT (3)
#define MAX98927_PCM_FORMAT_I2S (0x0 << 0)
#define MAX98927_PCM_FORMAT_LJ (0x1 << 0)
-
+#define MAX98927_PCM_FORMAT_TDM_MODE0 (0x3 << 0)
+#define MAX98927_PCM_FORMAT_TDM_MODE1 (0x4 << 0)
+#define MAX98927_PCM_FORMAT_TDM_MODE2 (0x5 << 0)
#define MAX98927_PCM_MODE_CFG_CHANSZ_MASK (0x3 << 6)
#define MAX98927_PCM_MODE_CFG_CHANSZ_16 (0x1 << 6)
#define MAX98927_PCM_MODE_CFG_CHANSZ_24 (0x2 << 6)
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 2/2] ASoC: max98927: Added max98927_dai_tdm_slot function
2017-09-15 0:30 [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format Ryan Lee
@ 2017-09-15 0:30 ` Ryan Lee
2017-09-15 0:30 ` [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format Ryan Lee
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: Ryan Lee @ 2017-09-15 0:30 UTC (permalink / raw)
To: lgirdwood, broonie, perex, tiwai, ryans.lee, alsa-devel, linux-kernel
Cc: ryan.lee.maxim
Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
---
Changelog:
Added 'max98927_dai_tdm_slot' function to set proper slot configuration.
Added variable 'tdm_mode' to avoid BCLK overwrite after 'max98927_dai_tdm_slot' configure BCLK value.
:BCLK value is being set inside 'max98927_dai_tdm_slot' function when it is tdm mode because number of slots and slot width information is available here.
:'max98927_set_clock' is called from hw_params and slot information is not available in this function so it can overwrite BCLK value.
:Variable 'tdm_mode' will be cleared after SND_SOC_DAPM_POST_PMD event is recieved.
Added 'max98927_get_bclk_sel' to avoid code duplication and support BCLK up to 512.
sound/soc/codecs/max98927.c | 118 ++++++++++++++++++++++++++++++++++++++------
sound/soc/codecs/max98927.h | 1 +
2 files changed, 103 insertions(+), 16 deletions(-)
diff --git a/sound/soc/codecs/max98927.c b/sound/soc/codecs/max98927.c
index 6f7b3ef..116cb9b 100644
--- a/sound/soc/codecs/max98927.c
+++ b/sound/soc/codecs/max98927.c
@@ -250,6 +250,21 @@ static const int rate_table[] = {
13000000, 19200000,
};
+/* BCLKs per LRCLK */
+static const int bclk_sel_table[] = {
+ 32, 48, 64, 96, 128, 192, 256, 384, 512,
+};
+
+static int max98927_get_bclk_sel(int bclk)
+{
+ int i;
+ /* match BCLKs per LRCLK */
+ for (i = 0; i < ARRAY_SIZE(bclk_sel_table); i++) {
+ if (bclk_sel_table[i] == bclk)
+ return i + 2;
+ }
+ return 0;
+}
static int max98927_set_clock(struct max98927_priv *max98927,
struct snd_pcm_hw_params *params)
{
@@ -275,23 +290,20 @@ static int max98927_set_clock(struct max98927_priv *max98927,
i << MAX98927_PCM_MASTER_MODE_MCLK_RATE_SHIFT);
}
- switch (blr_clk_ratio) {
- case 32:
- value = 2;
- break;
- case 48:
- value = 3;
- break;
- case 64:
- value = 4;
- break;
- default:
- return -EINVAL;
+ if (!max98927->tdm_mode) {
+ /* BCLK configuration */
+ value = max98927_get_bclk_sel(blr_clk_ratio);
+ if (!value) {
+ dev_err(codec->dev, "format unsupported %d\n",
+ params_format(params));
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0022_PCM_CLK_SETUP,
+ MAX98927_PCM_CLK_SETUP_BSEL_MASK,
+ value);
}
- regmap_update_bits(max98927->regmap,
- MAX98927_R0022_PCM_CLK_SETUP,
- MAX98927_PCM_CLK_SETUP_BSEL_MASK,
- value);
return 0;
}
@@ -391,6 +403,78 @@ static int max98927_dai_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
+static int max98927_dai_tdm_slot(struct snd_soc_dai *dai,
+ unsigned int tx_mask, unsigned int rx_mask,
+ int slots, int slot_width)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
+ int bsel = 0;
+ unsigned int chan_sz = 0;
+
+ max98927->tdm_mode = true;
+
+ /* BCLK configuration */
+ bsel = max98927_get_bclk_sel(slots * slot_width);
+ if (bsel == 0) {
+ dev_err(codec->dev, "BCLK %d not supported\n",
+ slots * slot_width);
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0022_PCM_CLK_SETUP,
+ MAX98927_PCM_CLK_SETUP_BSEL_MASK,
+ bsel);
+
+ /* Channel size configuration */
+ switch (slot_width) {
+ case 16:
+ chan_sz = MAX98927_PCM_MODE_CFG_CHANSZ_16;
+ break;
+ case 24:
+ chan_sz = MAX98927_PCM_MODE_CFG_CHANSZ_24;
+ break;
+ case 32:
+ chan_sz = MAX98927_PCM_MODE_CFG_CHANSZ_32;
+ break;
+ default:
+ dev_err(codec->dev, "format unsupported %d\n",
+ slot_width);
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0020_PCM_MODE_CFG,
+ MAX98927_PCM_MODE_CFG_CHANSZ_MASK, chan_sz);
+
+ /* Rx slot configuration */
+ regmap_write(max98927->regmap,
+ MAX98927_R0018_PCM_RX_EN_A,
+ rx_mask & 0xFF);
+ regmap_write(max98927->regmap,
+ MAX98927_R0019_PCM_RX_EN_B,
+ (rx_mask & 0xFF00) >> 8);
+
+ /* Tx slot configuration */
+ regmap_write(max98927->regmap,
+ MAX98927_R001A_PCM_TX_EN_A,
+ tx_mask & 0xFF);
+ regmap_write(max98927->regmap,
+ MAX98927_R001B_PCM_TX_EN_B,
+ (tx_mask & 0xFF00) >> 8);
+
+ /* Tx slot Hi-Z configuration */
+ regmap_write(max98927->regmap,
+ MAX98927_R001C_PCM_TX_HIZ_CTRL_A,
+ ~tx_mask & 0xFF);
+ regmap_write(max98927->regmap,
+ MAX98927_R001D_PCM_TX_HIZ_CTRL_B,
+ (~tx_mask & 0xFF00) >> 8);
+
+ return 0;
+}
+
#define MAX98927_RATES SNDRV_PCM_RATE_8000_48000
#define MAX98927_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
@@ -410,6 +494,7 @@ static const struct snd_soc_dai_ops max98927_dai_ops = {
.set_sysclk = max98927_dai_set_sysclk,
.set_fmt = max98927_dai_set_fmt,
.hw_params = max98927_dai_hw_params,
+ .set_tdm_slot = max98927_dai_tdm_slot,
};
static int max98927_dac_event(struct snd_soc_dapm_widget *w,
@@ -434,6 +519,7 @@ static int max98927_dac_event(struct snd_soc_dapm_widget *w,
regmap_update_bits(max98927->regmap,
MAX98927_R003A_AMP_EN,
MAX98927_AMP_EN_MASK, 0);
+ max98927->tdm_mode = 0;
break;
default:
return 0;
diff --git a/sound/soc/codecs/max98927.h b/sound/soc/codecs/max98927.h
index bf7a6f92..9ea8397 100644
--- a/sound/soc/codecs/max98927.h
+++ b/sound/soc/codecs/max98927.h
@@ -270,5 +270,6 @@ struct max98927_priv {
unsigned int iface;
unsigned int master;
unsigned int digital_gain;
+ bool tdm_mode;
};
#endif
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format
2017-09-15 0:30 [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format Ryan Lee
2017-09-15 0:30 ` [PATCH 2/2] ASoC: max98927: Added max98927_dai_tdm_slot function Ryan Lee
@ 2017-09-15 0:30 ` Ryan Lee
2017-09-15 0:30 ` [PATCH 2/2] ASoC: max98927: Added max98927_dai_tdm_slot function Ryan Lee
2017-09-25 19:47 ` [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format Mark Brown
3 siblings, 0 replies; 5+ messages in thread
From: Ryan Lee @ 2017-09-15 0:30 UTC (permalink / raw)
To: lgirdwood, broonie, perex, tiwai, ryans.lee, alsa-devel, linux-kernel
Cc: ryan.lee.maxim
Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
---
Changelog:
Modified copyright date
Added support for DSP_A and DSP_B format.
Added 'use_pdm' variable to distinguish configuration for pcm and pdm.
Maxim's TDM_MODE1 is matched with DSP_A
Maxim's TDM_MODE0 is matched with DSP_B
sound/soc/codecs/max98927.c | 35 ++++++++++++++++++++---------------
sound/soc/codecs/max98927.h | 6 ++++--
2 files changed, 24 insertions(+), 17 deletions(-)
diff --git a/sound/soc/codecs/max98927.c b/sound/soc/codecs/max98927.c
index d9dbbe7..6f7b3ef 100644
--- a/sound/soc/codecs/max98927.c
+++ b/sound/soc/codecs/max98927.c
@@ -1,7 +1,7 @@
/*
* max98927.c -- MAX98927 ALSA Soc Audio driver
*
- * Copyright (C) 2016 Maxim Integrated Products
+ * Copyright (C) 2016-2017 Maxim Integrated Products
* Author: Ryan Lee <ryans.lee@maximintegrated.com>
*
* This program is free software; you can redistribute it and/or modify it
@@ -146,6 +146,7 @@ static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
unsigned int mode = 0;
unsigned int format = 0;
+ bool use_pdm = false;
unsigned int invert = 0;
dev_dbg(codec->dev, "%s: fmt 0x%08X\n", __func__, fmt);
@@ -187,22 +188,27 @@ static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
/* interface format */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
- max98927->iface |= SND_SOC_DAIFMT_I2S;
format = MAX98927_PCM_FORMAT_I2S;
break;
case SND_SOC_DAIFMT_LEFT_J:
- max98927->iface |= SND_SOC_DAIFMT_LEFT_J;
format = MAX98927_PCM_FORMAT_LJ;
break;
+ case SND_SOC_DAIFMT_DSP_A:
+ format = MAX98927_PCM_FORMAT_TDM_MODE1;
+ break;
+ case SND_SOC_DAIFMT_DSP_B:
+ format = MAX98927_PCM_FORMAT_TDM_MODE0;
+ break;
case SND_SOC_DAIFMT_PDM:
- max98927->iface |= SND_SOC_DAIFMT_PDM;
+ use_pdm = true;
break;
default:
return -EINVAL;
}
+ max98927->iface = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
- /* pcm channel configuration */
- if (max98927->iface & (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_LEFT_J)) {
+ if (!use_pdm) {
+ /* pcm channel configuration */
regmap_update_bits(max98927->regmap,
MAX98927_R0018_PCM_RX_EN_A,
MAX98927_PCM_RX_CH0_EN | MAX98927_PCM_RX_CH1_EN,
@@ -217,13 +223,11 @@ static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
MAX98927_R003B_SPK_SRC_SEL,
MAX98927_SPK_SRC_MASK, 0);
- } else
regmap_update_bits(max98927->regmap,
- MAX98927_R0018_PCM_RX_EN_A,
- MAX98927_PCM_RX_CH0_EN | MAX98927_PCM_RX_CH1_EN, 0);
-
- /* pdm channel configuration */
- if (max98927->iface & SND_SOC_DAIFMT_PDM) {
+ MAX98927_R0035_PDM_RX_CTRL,
+ MAX98927_PDM_RX_EN_MASK, 0);
+ } else {
+ /* pdm channel configuration */
regmap_update_bits(max98927->regmap,
MAX98927_R0035_PDM_RX_CTRL,
MAX98927_PDM_RX_EN_MASK, 1);
@@ -231,10 +235,11 @@ static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
regmap_update_bits(max98927->regmap,
MAX98927_R003B_SPK_SRC_SEL,
MAX98927_SPK_SRC_MASK, 3);
- } else
+
regmap_update_bits(max98927->regmap,
- MAX98927_R0035_PDM_RX_CTRL,
- MAX98927_PDM_RX_EN_MASK, 0);
+ MAX98927_R0018_PCM_RX_EN_A,
+ MAX98927_PCM_RX_CH0_EN | MAX98927_PCM_RX_CH1_EN, 0);
+ }
return 0;
}
diff --git a/sound/soc/codecs/max98927.h b/sound/soc/codecs/max98927.h
index ece6a60..bf7a6f92 100644
--- a/sound/soc/codecs/max98927.h
+++ b/sound/soc/codecs/max98927.h
@@ -1,7 +1,7 @@
/*
* max98927.h -- MAX98927 ALSA Soc Audio driver
*
- * Copyright 2013-15 Maxim Integrated Products
+ * Copyright (C) 2016-2017 Maxim Integrated Products
* Author: Ryan Lee <ryans.lee@maximintegrated.com>
*
* This program is free software; you can redistribute it and/or modify it
@@ -161,7 +161,9 @@
#define MAX98927_PCM_MODE_CFG_FORMAT_SHIFT (3)
#define MAX98927_PCM_FORMAT_I2S (0x0 << 0)
#define MAX98927_PCM_FORMAT_LJ (0x1 << 0)
-
+#define MAX98927_PCM_FORMAT_TDM_MODE0 (0x3 << 0)
+#define MAX98927_PCM_FORMAT_TDM_MODE1 (0x4 << 0)
+#define MAX98927_PCM_FORMAT_TDM_MODE2 (0x5 << 0)
#define MAX98927_PCM_MODE_CFG_CHANSZ_MASK (0x3 << 6)
#define MAX98927_PCM_MODE_CFG_CHANSZ_16 (0x1 << 6)
#define MAX98927_PCM_MODE_CFG_CHANSZ_24 (0x2 << 6)
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 2/2] ASoC: max98927: Added max98927_dai_tdm_slot function
2017-09-15 0:30 [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format Ryan Lee
2017-09-15 0:30 ` [PATCH 2/2] ASoC: max98927: Added max98927_dai_tdm_slot function Ryan Lee
2017-09-15 0:30 ` [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format Ryan Lee
@ 2017-09-15 0:30 ` Ryan Lee
2017-09-25 19:47 ` [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format Mark Brown
3 siblings, 0 replies; 5+ messages in thread
From: Ryan Lee @ 2017-09-15 0:30 UTC (permalink / raw)
To: lgirdwood, broonie, perex, tiwai, ryans.lee, alsa-devel, linux-kernel
Cc: ryan.lee.maxim
Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
---
sound/soc/codecs/max98927.c | 120 ++++++++++++++++++++++++++++++++++++++------
sound/soc/codecs/max98927.h | 1 +
2 files changed, 105 insertions(+), 16 deletions(-)
diff --git a/sound/soc/codecs/max98927.c b/sound/soc/codecs/max98927.c
index 6f7b3ef..a1d3935 100644
--- a/sound/soc/codecs/max98927.c
+++ b/sound/soc/codecs/max98927.c
@@ -250,6 +250,21 @@ static const int rate_table[] = {
13000000, 19200000,
};
+/* BCLKs per LRCLK */
+static const int bclk_sel_table[] = {
+ 32, 48, 64, 96, 128, 192, 256, 384, 512,
+};
+
+static int max98927_get_bclk_sel(int bclk)
+{
+ int i;
+ /* match BCLKs per LRCLK */
+ for (i = 0; i < ARRAY_SIZE(bclk_sel_table); i++) {
+ if (bclk_sel_table[i] == bclk)
+ return i + 2;
+ }
+ return 0;
+}
static int max98927_set_clock(struct max98927_priv *max98927,
struct snd_pcm_hw_params *params)
{
@@ -275,23 +290,20 @@ static int max98927_set_clock(struct max98927_priv *max98927,
i << MAX98927_PCM_MASTER_MODE_MCLK_RATE_SHIFT);
}
- switch (blr_clk_ratio) {
- case 32:
- value = 2;
- break;
- case 48:
- value = 3;
- break;
- case 64:
- value = 4;
- break;
- default:
- return -EINVAL;
+ if (!max98927->tdm_mode) {
+ /* BCLK configuration */
+ value = max98927_get_bclk_sel(blr_clk_ratio);
+ if (!value) {
+ dev_err(codec->dev, "format unsupported %d\n",
+ params_format(params));
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0022_PCM_CLK_SETUP,
+ MAX98927_PCM_CLK_SETUP_BSEL_MASK,
+ value);
}
- regmap_update_bits(max98927->regmap,
- MAX98927_R0022_PCM_CLK_SETUP,
- MAX98927_PCM_CLK_SETUP_BSEL_MASK,
- value);
return 0;
}
@@ -391,6 +403,78 @@ static int max98927_dai_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
+static int max98927_dai_tdm_slot(struct snd_soc_dai *dai,
+ unsigned int tx_mask, unsigned int rx_mask,
+ int slots, int slot_width)
+{
+ struct snd_soc_codec *codec = dai->codec;
+ struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
+ int bsel = 0;
+ unsigned int chan_sz = 0;
+
+ max98927->tdm_mode = true;
+
+ /* BCLK configuration */
+ bsel = max98927_get_bclk_sel(slots * slot_width);
+ if (bsel == 0) {
+ dev_err(codec->dev, "BCLK %d not supported\n",
+ slots * slot_width);
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0022_PCM_CLK_SETUP,
+ MAX98927_PCM_CLK_SETUP_BSEL_MASK,
+ bsel);
+
+ /* Channel size configuration */
+ switch (slot_width) {
+ case 16:
+ chan_sz = MAX98927_PCM_MODE_CFG_CHANSZ_16;
+ break;
+ case 24:
+ chan_sz = MAX98927_PCM_MODE_CFG_CHANSZ_24;
+ break;
+ case 32:
+ chan_sz = MAX98927_PCM_MODE_CFG_CHANSZ_32;
+ break;
+ default:
+ dev_err(codec->dev, "format unsupported %d\n",
+ slot_width);
+ return -EINVAL;
+ }
+
+ regmap_update_bits(max98927->regmap,
+ MAX98927_R0020_PCM_MODE_CFG,
+ MAX98927_PCM_MODE_CFG_CHANSZ_MASK, chan_sz);
+
+ /* Rx slot configuration */
+ regmap_write(max98927->regmap,
+ MAX98927_R0018_PCM_RX_EN_A,
+ rx_mask & 0xFF);
+ regmap_write(max98927->regmap,
+ MAX98927_R0019_PCM_RX_EN_B,
+ (rx_mask & 0xFF00) >> 8);
+
+ /* Tx slot configuration */
+ regmap_write(max98927->regmap,
+ MAX98927_R001A_PCM_TX_EN_A,
+ tx_mask & 0xFF);
+ regmap_write(max98927->regmap,
+ MAX98927_R001B_PCM_TX_EN_B,
+ (tx_mask & 0xFF00) >> 8);
+
+ /* Tx slot Hi-Z configuration */
+ regmap_write(max98927->regmap,
+ MAX98927_R001C_PCM_TX_HIZ_CTRL_A,
+ ~tx_mask & 0xFF);
+ regmap_write(max98927->regmap,
+ MAX98927_R001D_PCM_TX_HIZ_CTRL_B,
+ (~tx_mask & 0xFF00) >> 8);
+
+ return 0;
+}
+
#define MAX98927_RATES SNDRV_PCM_RATE_8000_48000
#define MAX98927_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
@@ -410,6 +494,7 @@ static const struct snd_soc_dai_ops max98927_dai_ops = {
.set_sysclk = max98927_dai_set_sysclk,
.set_fmt = max98927_dai_set_fmt,
.hw_params = max98927_dai_hw_params,
+ .set_tdm_slot = max98927_dai_tdm_slot,
};
static int max98927_dac_event(struct snd_soc_dapm_widget *w,
@@ -419,6 +504,9 @@ static int max98927_dac_event(struct snd_soc_dapm_widget *w,
struct max98927_priv *max98927 = snd_soc_codec_get_drvdata(codec);
switch (event) {
+ case SND_SOC_DAPM_PRE_PMU:
+ max98927->tdm_mode = 0;
+ break;
case SND_SOC_DAPM_POST_PMU:
regmap_update_bits(max98927->regmap,
MAX98927_R003A_AMP_EN,
diff --git a/sound/soc/codecs/max98927.h b/sound/soc/codecs/max98927.h
index bf7a6f92..9ea8397 100644
--- a/sound/soc/codecs/max98927.h
+++ b/sound/soc/codecs/max98927.h
@@ -270,5 +270,6 @@ struct max98927_priv {
unsigned int iface;
unsigned int master;
unsigned int digital_gain;
+ bool tdm_mode;
};
#endif
--
2.7.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format
2017-09-15 0:30 [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format Ryan Lee
` (2 preceding siblings ...)
2017-09-15 0:30 ` [PATCH 2/2] ASoC: max98927: Added max98927_dai_tdm_slot function Ryan Lee
@ 2017-09-25 19:47 ` Mark Brown
3 siblings, 0 replies; 5+ messages in thread
From: Mark Brown @ 2017-09-25 19:47 UTC (permalink / raw)
To: Ryan Lee
Cc: lgirdwood, perex, tiwai, alsa-devel, linux-kernel, ryan.lee.maxim
[-- Attachment #1: Type: text/plain, Size: 504 bytes --]
On Thu, Sep 14, 2017 at 05:30:36PM -0700, Ryan Lee wrote:
> Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
This thread consists of four patches, two numbered 1/2 and two numbered
2/2. Obviously this is quite confusing to read. Please spend some time
working through the patch submission process, perhaps try sending some
of these things to yourself off-list to verify things are working and
look like other people's submissions - there are consistently big
problems with what you're sending.
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2017-09-25 19:48 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-09-15 0:30 [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format Ryan Lee
2017-09-15 0:30 ` [PATCH 2/2] ASoC: max98927: Added max98927_dai_tdm_slot function Ryan Lee
2017-09-15 0:30 ` [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format Ryan Lee
2017-09-15 0:30 ` [PATCH 2/2] ASoC: max98927: Added max98927_dai_tdm_slot function Ryan Lee
2017-09-25 19:47 ` [PATCH 1/2] ASoC: max98927: Added support for DSP_A and DSP_B format Mark Brown
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