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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /sound/soc/codecs/sta529.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/soc/codecs/sta529.c')
-rw-r--r-- | sound/soc/codecs/sta529.c | 390 |
1 files changed, 390 insertions, 0 deletions
diff --git a/sound/soc/codecs/sta529.c b/sound/soc/codecs/sta529.c new file mode 100644 index 0000000000..eedafef775 --- /dev/null +++ b/sound/soc/codecs/sta529.c @@ -0,0 +1,390 @@ +/* + * ASoC codec driver for spear platform + * + * sound/soc/codecs/sta529.c -- spear ALSA Soc codec driver + * + * Copyright (C) 2012 ST Microelectronics + * Rajeev Kumar <rajeevkumar.linux@gmail.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/clk.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/pm.h> +#include <linux/regmap.h> +#include <linux/slab.h> + +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/tlv.h> + +/* STA529 Register offsets */ +#define STA529_FFXCFG0 0x00 +#define STA529_FFXCFG1 0x01 +#define STA529_MVOL 0x02 +#define STA529_LVOL 0x03 +#define STA529_RVOL 0x04 +#define STA529_TTF0 0x05 +#define STA529_TTF1 0x06 +#define STA529_TTP0 0x07 +#define STA529_TTP1 0x08 +#define STA529_S2PCFG0 0x0A +#define STA529_S2PCFG1 0x0B +#define STA529_P2SCFG0 0x0C +#define STA529_P2SCFG1 0x0D +#define STA529_PLLCFG0 0x14 +#define STA529_PLLCFG1 0x15 +#define STA529_PLLCFG2 0x16 +#define STA529_PLLCFG3 0x17 +#define STA529_PLLPFE 0x18 +#define STA529_PLLST 0x19 +#define STA529_ADCCFG 0x1E /*mic_select*/ +#define STA529_CKOCFG 0x1F +#define STA529_MISC 0x20 +#define STA529_PADST0 0x21 +#define STA529_PADST1 0x22 +#define STA529_FFXST 0x23 +#define STA529_PWMIN1 0x2D +#define STA529_PWMIN2 0x2E +#define STA529_POWST 0x32 + +#define STA529_MAX_REGISTER 0x32 + +#define STA529_RATES (SNDRV_PCM_RATE_8000 | \ + SNDRV_PCM_RATE_11025 | \ + SNDRV_PCM_RATE_16000 | \ + SNDRV_PCM_RATE_22050 | \ + SNDRV_PCM_RATE_32000 | \ + SNDRV_PCM_RATE_44100 | \ + SNDRV_PCM_RATE_48000) + +#define STA529_FORMAT (SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE) +#define S2PC_VALUE 0x98 +#define CLOCK_OUT 0x60 +#define DATA_FORMAT_MSK 0x0E +#define LEFT_J_DATA_FORMAT 0x00 +#define I2S_DATA_FORMAT 0x02 +#define RIGHT_J_DATA_FORMAT 0x04 +#define CODEC_MUTE_VAL 0x80 + +#define POWER_CNTLMSAK 0x40 +#define POWER_STDBY 0x40 +#define FFX_MASK 0x80 +#define FFX_OFF 0x80 +#define POWER_UP 0x00 +#define FFX_CLK_ENB 0x01 +#define FFX_CLK_DIS 0x00 +#define FFX_CLK_MSK 0x01 +#define PLAY_FREQ_RANGE_MSK 0x70 +#define CAP_FREQ_RANGE_MSK 0x0C +#define PDATA_LEN_MSK 0xC0 +#define BCLK_TO_FS_MSK 0x30 +#define AUDIO_MUTE_MSK 0x80 + +static const struct reg_default sta529_reg_defaults[] = { + { 0, 0x35 }, /* R0 - FFX Configuration reg 0 */ + { 1, 0xc8 }, /* R1 - FFX Configuration reg 1 */ + { 2, 0x50 }, /* R2 - Master Volume */ + { 3, 0x00 }, /* R3 - Left Volume */ + { 4, 0x00 }, /* R4 - Right Volume */ + { 10, 0xb2 }, /* R10 - S2P Config Reg 0 */ + { 11, 0x41 }, /* R11 - S2P Config Reg 1 */ + { 12, 0x92 }, /* R12 - P2S Config Reg 0 */ + { 13, 0x41 }, /* R13 - P2S Config Reg 1 */ + { 30, 0xd2 }, /* R30 - ADC Config Reg */ + { 31, 0x40 }, /* R31 - clock Out Reg */ + { 32, 0x21 }, /* R32 - Misc Register */ +}; + +struct sta529 { + struct regmap *regmap; +}; + +static bool sta529_readable(struct device *dev, unsigned int reg) +{ + switch (reg) { + + case STA529_FFXCFG0: + case STA529_FFXCFG1: + case STA529_MVOL: + case STA529_LVOL: + case STA529_RVOL: + case STA529_S2PCFG0: + case STA529_S2PCFG1: + case STA529_P2SCFG0: + case STA529_P2SCFG1: + case STA529_ADCCFG: + case STA529_CKOCFG: + case STA529_MISC: + return true; + default: + return false; + } +} + + +static const char *pwm_mode_text[] = { "Binary", "Headphone", "Ternary", + "Phase-shift"}; + +static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -9150, 50, 0); +static const DECLARE_TLV_DB_SCALE(master_vol_tlv, -12750, 50, 0); +static SOC_ENUM_SINGLE_DECL(pwm_src, STA529_FFXCFG1, 4, pwm_mode_text); + +static const struct snd_kcontrol_new sta529_snd_controls[] = { + SOC_DOUBLE_R_TLV("Digital Playback Volume", STA529_LVOL, STA529_RVOL, 0, + 127, 0, out_gain_tlv), + SOC_SINGLE_TLV("Master Playback Volume", STA529_MVOL, 0, 127, 1, + master_vol_tlv), + SOC_ENUM("PWM Select", pwm_src), +}; + +static int sta529_set_bias_level(struct snd_soc_component *component, enum + snd_soc_bias_level level) +{ + struct sta529 *sta529 = snd_soc_component_get_drvdata(component); + + switch (level) { + case SND_SOC_BIAS_ON: + case SND_SOC_BIAS_PREPARE: + snd_soc_component_update_bits(component, STA529_FFXCFG0, POWER_CNTLMSAK, + POWER_UP); + snd_soc_component_update_bits(component, STA529_MISC, FFX_CLK_MSK, + FFX_CLK_ENB); + break; + case SND_SOC_BIAS_STANDBY: + if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) + regcache_sync(sta529->regmap); + snd_soc_component_update_bits(component, STA529_FFXCFG0, + POWER_CNTLMSAK, POWER_STDBY); + /* Making FFX output to zero */ + snd_soc_component_update_bits(component, STA529_FFXCFG0, FFX_MASK, + FFX_OFF); + snd_soc_component_update_bits(component, STA529_MISC, FFX_CLK_MSK, + FFX_CLK_DIS); + break; + case SND_SOC_BIAS_OFF: + break; + } + + return 0; + +} + +static int sta529_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + int pdata, play_freq_val, record_freq_val; + int bclk_to_fs_ratio; + + switch (params_width(params)) { + case 16: + pdata = 1; + bclk_to_fs_ratio = 0; + break; + case 24: + pdata = 2; + bclk_to_fs_ratio = 1; + break; + case 32: + pdata = 3; + bclk_to_fs_ratio = 2; + break; + default: + dev_err(component->dev, "Unsupported format\n"); + return -EINVAL; + } + + switch (params_rate(params)) { + case 8000: + case 11025: + play_freq_val = 0; + record_freq_val = 2; + break; + case 16000: + case 22050: + play_freq_val = 1; + record_freq_val = 0; + break; + + case 32000: + case 44100: + case 48000: + play_freq_val = 2; + record_freq_val = 0; + break; + default: + dev_err(component->dev, "Unsupported rate\n"); + return -EINVAL; + } + + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { + snd_soc_component_update_bits(component, STA529_S2PCFG1, PDATA_LEN_MSK, + pdata << 6); + snd_soc_component_update_bits(component, STA529_S2PCFG1, BCLK_TO_FS_MSK, + bclk_to_fs_ratio << 4); + snd_soc_component_update_bits(component, STA529_MISC, PLAY_FREQ_RANGE_MSK, + play_freq_val << 4); + } else { + snd_soc_component_update_bits(component, STA529_P2SCFG1, PDATA_LEN_MSK, + pdata << 6); + snd_soc_component_update_bits(component, STA529_P2SCFG1, BCLK_TO_FS_MSK, + bclk_to_fs_ratio << 4); + snd_soc_component_update_bits(component, STA529_MISC, CAP_FREQ_RANGE_MSK, + record_freq_val << 2); + } + + return 0; +} + +static int sta529_mute(struct snd_soc_dai *dai, int mute, int direction) +{ + u8 val = 0; + + if (mute) + val |= CODEC_MUTE_VAL; + + snd_soc_component_update_bits(dai->component, STA529_FFXCFG0, AUDIO_MUTE_MSK, val); + + return 0; +} + +static int sta529_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt) +{ + struct snd_soc_component *component = codec_dai->component; + u8 mode = 0; + + /* interface format */ + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_LEFT_J: + mode = LEFT_J_DATA_FORMAT; + break; + case SND_SOC_DAIFMT_I2S: + mode = I2S_DATA_FORMAT; + break; + case SND_SOC_DAIFMT_RIGHT_J: + mode = RIGHT_J_DATA_FORMAT; + break; + default: + return -EINVAL; + } + + snd_soc_component_update_bits(component, STA529_S2PCFG0, DATA_FORMAT_MSK, mode); + + return 0; +} + +static const struct snd_soc_dai_ops sta529_dai_ops = { + .hw_params = sta529_hw_params, + .set_fmt = sta529_set_dai_fmt, + .mute_stream = sta529_mute, + .no_capture_mute = 1, +}; + +static struct snd_soc_dai_driver sta529_dai = { + .name = "sta529-audio", + .playback = { + .stream_name = "Playback", + .channels_min = 2, + .channels_max = 2, + .rates = STA529_RATES, + .formats = STA529_FORMAT, + }, + .capture = { + .stream_name = "Capture", + .channels_min = 2, + .channels_max = 2, + .rates = STA529_RATES, + .formats = STA529_FORMAT, + }, + .ops = &sta529_dai_ops, +}; + +static const struct snd_soc_component_driver sta529_component_driver = { + .set_bias_level = sta529_set_bias_level, + .controls = sta529_snd_controls, + .num_controls = ARRAY_SIZE(sta529_snd_controls), + .suspend_bias_off = 1, + .idle_bias_on = 1, + .use_pmdown_time = 1, + .endianness = 1, +}; + +static const struct regmap_config sta529_regmap = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = STA529_MAX_REGISTER, + .readable_reg = sta529_readable, + + .cache_type = REGCACHE_MAPLE, + .reg_defaults = sta529_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(sta529_reg_defaults), +}; + +static int sta529_i2c_probe(struct i2c_client *i2c) +{ + struct sta529 *sta529; + int ret; + + sta529 = devm_kzalloc(&i2c->dev, sizeof(struct sta529), GFP_KERNEL); + if (!sta529) + return -ENOMEM; + + sta529->regmap = devm_regmap_init_i2c(i2c, &sta529_regmap); + if (IS_ERR(sta529->regmap)) { + ret = PTR_ERR(sta529->regmap); + dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret); + return ret; + } + + i2c_set_clientdata(i2c, sta529); + + ret = devm_snd_soc_register_component(&i2c->dev, + &sta529_component_driver, &sta529_dai, 1); + if (ret != 0) + dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); + + return ret; +} + +static const struct i2c_device_id sta529_i2c_id[] = { + { "sta529", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sta529_i2c_id); + +static const struct of_device_id sta529_of_match[] = { + { .compatible = "st,sta529", }, + { } +}; +MODULE_DEVICE_TABLE(of, sta529_of_match); + +static struct i2c_driver sta529_i2c_driver = { + .driver = { + .name = "sta529", + .of_match_table = sta529_of_match, + }, + .probe = sta529_i2c_probe, + .id_table = sta529_i2c_id, +}; + +module_i2c_driver(sta529_i2c_driver); + +MODULE_DESCRIPTION("ASoC STA529 codec driver"); +MODULE_AUTHOR("Rajeev Kumar <rajeevkumar.linux@gmail.com>"); +MODULE_LICENSE("GPL"); |