diff options
Diffstat (limited to 'sound/soc/codecs/cs530x.c')
| -rw-r--r-- | sound/soc/codecs/cs530x.c | 971 |
1 files changed, 971 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs530x.c b/sound/soc/codecs/cs530x.c new file mode 100644 index 000000000000..da52afe56c3c --- /dev/null +++ b/sound/soc/codecs/cs530x.c @@ -0,0 +1,971 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// CS530x CODEC driver +// +// Copyright (C) 2024 Cirrus Logic, Inc. and +// Cirrus Logic International Semiconductor Ltd. + +#include <sound/core.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <sound/initval.h> +#include <linux/module.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <linux/pm.h> +#include <linux/property.h> +#include <linux/slab.h> +#include <sound/soc.h> +#include <sound/tlv.h> + +#include "cs530x.h" + +#define CS530X_MAX_ADC_CH 8 +#define CS530X_MIN_ADC_CH 2 + +static const char *cs530x_supply_names[CS530X_NUM_SUPPLIES] = { + "vdd-a", + "vdd-io", +}; + +static const struct reg_default cs530x_reg_defaults[] = { + { CS530X_CLK_CFG_0, 0x30 }, + { CS530X_CLK_CFG_1, 0x0001 }, + { CS530X_CHIP_ENABLE, 0 }, + { CS530X_ASP_CFG, 0 }, + { CS530X_SIGNAL_PATH_CFG, 0 }, + { CS530X_IN_ENABLES, 0 }, + { CS530X_IN_RAMP_SUM, 0x0022 }, + { CS530X_IN_FILTER, 0 }, + { CS530X_IN_HIZ, 0 }, + { CS530X_IN_INV, 0 }, + { CS530X_IN_VOL_CTRL1_0, 0x8000 }, + { CS530X_IN_VOL_CTRL1_1, 0x8000 }, + { CS530X_IN_VOL_CTRL2_0, 0x8000 }, + { CS530X_IN_VOL_CTRL2_1, 0x8000 }, + { CS530X_IN_VOL_CTRL3_0, 0x8000 }, + { CS530X_IN_VOL_CTRL3_1, 0x8000 }, + { CS530X_IN_VOL_CTRL4_0, 0x8000 }, + { CS530X_IN_VOL_CTRL4_1, 0x8000 }, + { CS530X_PAD_FN, 0 }, + { CS530X_PAD_LVL, 0 }, +}; + +static bool cs530x_read_and_write_regs(unsigned int reg) +{ + switch (reg) { + case CS530X_CLK_CFG_0: + case CS530X_CLK_CFG_1: + case CS530X_CHIP_ENABLE: + case CS530X_ASP_CFG: + case CS530X_SIGNAL_PATH_CFG: + case CS530X_IN_ENABLES: + case CS530X_IN_RAMP_SUM: + case CS530X_IN_FILTER: + case CS530X_IN_HIZ: + case CS530X_IN_INV: + case CS530X_IN_VOL_CTRL1_0: + case CS530X_IN_VOL_CTRL1_1: + case CS530X_IN_VOL_CTRL2_0: + case CS530X_IN_VOL_CTRL2_1: + case CS530X_IN_VOL_CTRL3_0: + case CS530X_IN_VOL_CTRL3_1: + case CS530X_IN_VOL_CTRL4_0: + case CS530X_IN_VOL_CTRL4_1: + case CS530X_PAD_FN: + case CS530X_PAD_LVL: + return true; + default: + return false; + } +} + +static bool cs530x_readable_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case CS530X_DEVID: + case CS530X_REVID: + return true; + default: + return cs530x_read_and_write_regs(reg); + } +} + +static bool cs530x_writeable_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case CS530X_SW_RESET: + case CS530X_IN_VOL_CTRL5: + return true; + default: + return cs530x_read_and_write_regs(reg); + } +} + +static int cs530x_put_volsw_vu(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component); + struct regmap *regmap = cs530x->regmap; + int ret; + + snd_soc_dapm_mutex_lock(dapm); + + ret = snd_soc_put_volsw(kcontrol, ucontrol); + if (ret) + goto volsw_err; + + /* Write IN_VU bit for the volume change to take effect */ + regmap_write(regmap, CS530X_IN_VOL_CTRL5, CS530X_IN_VU); + +volsw_err: + snd_soc_dapm_mutex_unlock(dapm); + + return ret; +} + +static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -1270, 50, 0); + +static const char * const cs530x_in_filter_text[] = { + "Min Phase Slow Roll-off", + "Min Phase Fast Roll-off", + "Linear Phase Slow Roll-off", + "Linear Phase Fast Roll-off", +}; + +static SOC_ENUM_SINGLE_DECL(cs530x_in_filter_enum, CS530X_IN_FILTER, + CS530X_IN_FILTER_SHIFT, + cs530x_in_filter_text); + +static const char * const cs530x_in_4ch_sum_text[] = { + "None", + "Groups of 2", + "Groups of 4", +}; + +static SOC_ENUM_SINGLE_DECL(cs530x_in_sum_ch4_enum, CS530X_IN_RAMP_SUM, + CS530X_IN_SUM_MODE_SHIFT, + cs530x_in_4ch_sum_text); + +static const struct snd_kcontrol_new cs530x_in_sum_4ch_controls[] = { +SOC_ENUM("IN Sum Select", cs530x_in_sum_ch4_enum), +}; + +static const char * const cs530x_in_8ch_sum_text[] = { + "None", + "Groups of 2", + "Groups of 4", + "Groups of 8", +}; + +static SOC_ENUM_SINGLE_DECL(cs530x_in_sum_ch8_enum, CS530X_IN_RAMP_SUM, + CS530X_IN_SUM_MODE_SHIFT, + cs530x_in_8ch_sum_text); + +static const struct snd_kcontrol_new cs530x_in_sum_8ch_controls[] = { +SOC_ENUM("IN Sum Select", cs530x_in_sum_ch8_enum), +}; + + +static const char * const cs530x_vol_ramp_text[] = { + "0ms/6dB", "0.5ms/6dB", "1ms/6dB", "2ms/6dB", "4ms/6dB", "8ms/6dB", + "15ms/6dB", "30ms/6dB", +}; + +static SOC_ENUM_SINGLE_DECL(cs530x_ramp_inc_enum, CS530X_IN_RAMP_SUM, + CS530X_RAMP_RATE_INC_SHIFT, + cs530x_vol_ramp_text); + +static SOC_ENUM_SINGLE_DECL(cs530x_ramp_dec_enum, CS530X_IN_RAMP_SUM, + CS530X_RAMP_RATE_DEC_SHIFT, + cs530x_vol_ramp_text); + +static const struct snd_kcontrol_new cs530x_in_1_to_2_controls[] = { +SOC_SINGLE_EXT_TLV("IN1 Volume", CS530X_IN_VOL_CTRL1_0, 0, 255, 1, + snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv), +SOC_SINGLE_EXT_TLV("IN2 Volume", CS530X_IN_VOL_CTRL1_1, 0, 255, 1, + snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv), + +SOC_ENUM("IN DEC Filter Select", cs530x_in_filter_enum), +SOC_ENUM("Input Ramp Up", cs530x_ramp_inc_enum), +SOC_ENUM("Input Ramp Down", cs530x_ramp_dec_enum), + +SOC_SINGLE("ADC1 Invert Switch", CS530X_IN_INV, CS530X_IN1_INV_SHIFT, 1, 0), +SOC_SINGLE("ADC2 Invert Switch", CS530X_IN_INV, CS530X_IN2_INV_SHIFT, 1, 0), +}; + +static const struct snd_kcontrol_new cs530x_in_3_to_4_controls[] = { +SOC_SINGLE_EXT_TLV("IN3 Volume", CS530X_IN_VOL_CTRL2_0, 0, 255, 1, + snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv), +SOC_SINGLE_EXT_TLV("IN4 Volume", CS530X_IN_VOL_CTRL2_1, 0, 255, 1, + snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv), + +SOC_SINGLE("ADC3 Invert Switch", CS530X_IN_INV, CS530X_IN3_INV_SHIFT, 1, 0), +SOC_SINGLE("ADC4 Invert Switch", CS530X_IN_INV, CS530X_IN4_INV_SHIFT, 1, 0), +}; + +static const struct snd_kcontrol_new cs530x_in_5_to_8_controls[] = { +SOC_SINGLE_EXT_TLV("IN5 Volume", CS530X_IN_VOL_CTRL3_0, 0, 255, 1, + snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv), +SOC_SINGLE_EXT_TLV("IN6 Volume", CS530X_IN_VOL_CTRL3_1, 0, 255, 1, + snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv), +SOC_SINGLE_EXT_TLV("IN7 Volume", CS530X_IN_VOL_CTRL4_0, 0, 255, 1, + snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv), +SOC_SINGLE_EXT_TLV("IN8 Volume", CS530X_IN_VOL_CTRL4_1, 0, 255, 1, + snd_soc_get_volsw, cs530x_put_volsw_vu, in_vol_tlv), + +SOC_SINGLE("ADC5 Invert Switch", CS530X_IN_INV, CS530X_IN5_INV_SHIFT, 1, 0), +SOC_SINGLE("ADC6 Invert Switch", CS530X_IN_INV, CS530X_IN6_INV_SHIFT, 1, 0), +SOC_SINGLE("ADC7 Invert Switch", CS530X_IN_INV, CS530X_IN7_INV_SHIFT, 1, 0), +SOC_SINGLE("ADC8 Invert Switch", CS530X_IN_INV, CS530X_IN8_INV_SHIFT, 1, 0), +}; + +static int cs530x_adc_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); + struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component); + struct regmap *regmap = cs530x->regmap; + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + cs530x->adc_pairs_count++; + break; + case SND_SOC_DAPM_POST_PMU: + regmap_clear_bits(regmap, CS530X_IN_VOL_CTRL1_0 + + (w->shift * 2), CS530X_IN_MUTE); + regmap_clear_bits(regmap, CS530X_IN_VOL_CTRL1_0 + + ((w->shift+1) * 2), CS530X_IN_MUTE); + + cs530x->adc_pairs_count--; + if (!cs530x->adc_pairs_count) { + usleep_range(1000, 1100); + return regmap_write(regmap, CS530X_IN_VOL_CTRL5, + CS530X_IN_VU); + } + break; + case SND_SOC_DAPM_PRE_PMD: + regmap_set_bits(regmap, CS530X_IN_VOL_CTRL1_0 + + (w->shift * 2), CS530X_IN_MUTE); + regmap_set_bits(regmap, CS530X_IN_VOL_CTRL1_0 + + ((w->shift+1) * 2), CS530X_IN_MUTE); + return regmap_write(regmap, CS530X_IN_VOL_CTRL5, + CS530X_IN_VU); + default: + return -EINVAL; + } + + return 0; +} + +static const struct snd_kcontrol_new adc12_ctrl = + SOC_DAPM_SINGLE_VIRT("Switch", 1); + +static const struct snd_kcontrol_new adc34_ctrl = + SOC_DAPM_SINGLE_VIRT("Switch", 1); + +static const struct snd_kcontrol_new adc56_ctrl = + SOC_DAPM_SINGLE_VIRT("Switch", 1); + +static const struct snd_kcontrol_new adc78_ctrl = + SOC_DAPM_SINGLE_VIRT("Switch", 1); + +static const struct snd_kcontrol_new in_hpf_ctrl = + SOC_DAPM_SINGLE_VIRT("Switch", 1); + +/* General DAPM widgets for all devices */ +static const struct snd_soc_dapm_widget cs530x_gen_dapm_widgets[] = { +SND_SOC_DAPM_SUPPLY("Global Enable", CS530X_CHIP_ENABLE, 0, 0, NULL, 0), +}; + +/* ADC's Channels 1 and 2 plus generic ADC DAPM events */ +static const struct snd_soc_dapm_widget cs530x_adc_ch12_dapm_widgets[] = { +SND_SOC_DAPM_INPUT("IN1"), +SND_SOC_DAPM_INPUT("IN2"), +SND_SOC_DAPM_ADC_E("ADC1", NULL, CS530X_IN_ENABLES, 0, 0, + cs530x_adc_event, + SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU | + SND_SOC_DAPM_PRE_PMU), +SND_SOC_DAPM_ADC("ADC2", NULL, CS530X_IN_ENABLES, 1, 0), +SND_SOC_DAPM_SWITCH("ADC12 Enable", SND_SOC_NOPM, 0, 0, &adc12_ctrl), +SND_SOC_DAPM_SWITCH("IN HPF", CS530X_IN_FILTER, CS530X_IN_HPF_EN_SHIFT, + 0, &in_hpf_ctrl), +}; + +/* ADC's Channels 3 and 4 */ +static const struct snd_soc_dapm_widget cs530x_adc_ch34_dapm_widgets[] = { +SND_SOC_DAPM_INPUT("IN3"), +SND_SOC_DAPM_INPUT("IN4"), +SND_SOC_DAPM_ADC_E("ADC3", NULL, CS530X_IN_ENABLES, 2, 0, + cs530x_adc_event, + SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU | + SND_SOC_DAPM_PRE_PMU), +SND_SOC_DAPM_ADC("ADC4", NULL, CS530X_IN_ENABLES, 3, 0), +SND_SOC_DAPM_SWITCH("ADC34 Enable", SND_SOC_NOPM, 0, 0, &adc34_ctrl), +}; + +/* ADC's Channels 5 to 8 */ +static const struct snd_soc_dapm_widget cs530x_adc_ch58_dapm_widgets[] = { +SND_SOC_DAPM_INPUT("IN5"), +SND_SOC_DAPM_INPUT("IN6"), +SND_SOC_DAPM_INPUT("IN7"), +SND_SOC_DAPM_INPUT("IN8"), +SND_SOC_DAPM_ADC_E("ADC5", NULL, CS530X_IN_ENABLES, 4, 0, + cs530x_adc_event, + SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU | + SND_SOC_DAPM_PRE_PMU), +SND_SOC_DAPM_ADC("ADC6", NULL, CS530X_IN_ENABLES, 5, 0), +SND_SOC_DAPM_SWITCH("ADC56 Enable", SND_SOC_NOPM, 0, 0, &adc56_ctrl), +SND_SOC_DAPM_ADC_E("ADC7", NULL, CS530X_IN_ENABLES, 6, 0, + cs530x_adc_event, + SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU | + SND_SOC_DAPM_PRE_PMU), +SND_SOC_DAPM_ADC("ADC8", NULL, CS530X_IN_ENABLES, 7, 0), +SND_SOC_DAPM_SWITCH("ADC78 Enable", SND_SOC_NOPM, 0, 0, &adc78_ctrl), +}; + +static const struct snd_soc_dapm_route adc_ch1_2_routes[] = { + { "ADC1", NULL, "Global Enable" }, + { "ADC2", NULL, "Global Enable" }, + + { "ADC12 Enable", "Switch", "IN1" }, + { "ADC12 Enable", "Switch", "IN2" }, + { "ADC1", NULL, "ADC12 Enable" }, + { "ADC2", NULL, "ADC12 Enable" }, + { "IN HPF", "Switch", "ADC1" }, + { "IN HPF", "Switch", "ADC2" }, + + { "AIF Capture", NULL, "IN HPF" }, + { "AIF Capture", NULL, "ADC1" }, + { "AIF Capture", NULL, "ADC2" }, +}; + +static const struct snd_soc_dapm_route adc_ch3_4_routes[] = { + { "ADC3", NULL, "Global Enable" }, + { "ADC4", NULL, "Global Enable" }, + + { "ADC34 Enable", "Switch", "IN3" }, + { "ADC34 Enable", "Switch", "IN4" }, + { "ADC3", NULL, "ADC34 Enable" }, + { "ADC4", NULL, "ADC34 Enable" }, + { "IN HPF", "Switch", "ADC3" }, + { "IN HPF", "Switch", "ADC4" }, + + { "AIF Capture", NULL, "ADC3" }, + { "AIF Capture", NULL, "ADC4" }, +}; + +static const struct snd_soc_dapm_route adc_ch5_8_routes[] = { + { "ADC5", NULL, "Global Enable" }, + { "ADC6", NULL, "Global Enable" }, + { "ADC7", NULL, "Global Enable" }, + { "ADC8", NULL, "Global Enable" }, + + { "ADC56 Enable", "Switch", "IN5" }, + { "ADC56 Enable", "Switch", "IN6" }, + { "ADC5", NULL, "ADC56 Enable" }, + { "ADC6", NULL, "ADC56 Enable" }, + { "IN HPF", "Switch", "ADC5" }, + { "IN HPF", "Switch", "ADC6" }, + + { "AIF Capture", NULL, "ADC5" }, + { "AIF Capture", NULL, "ADC6" }, + + { "ADC78 Enable", "Switch", "IN7" }, + { "ADC78 Enable", "Switch", "IN8" }, + { "ADC7", NULL, "ADC78 Enable" }, + { "ADC8", NULL, "ADC78 Enable" }, + { "IN HPF", "Switch", "ADC7" }, + { "IN HPF", "Switch", "ADC8" }, + + { "AIF Capture", NULL, "ADC7" }, + { "AIF Capture", NULL, "ADC8" }, +}; + +static void cs530x_add_12_adc_widgets(struct snd_soc_component *component) +{ + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + + snd_soc_add_component_controls(component, + cs530x_in_1_to_2_controls, + ARRAY_SIZE(cs530x_in_1_to_2_controls)); + + snd_soc_dapm_new_controls(dapm, cs530x_adc_ch12_dapm_widgets, + ARRAY_SIZE(cs530x_adc_ch12_dapm_widgets)); + + snd_soc_dapm_add_routes(dapm, adc_ch1_2_routes, + ARRAY_SIZE(adc_ch1_2_routes)); +} + +static void cs530x_add_34_adc_widgets(struct snd_soc_component *component) +{ + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + + snd_soc_add_component_controls(component, + cs530x_in_3_to_4_controls, + ARRAY_SIZE(cs530x_in_3_to_4_controls)); + + snd_soc_dapm_new_controls(dapm, cs530x_adc_ch34_dapm_widgets, + ARRAY_SIZE(cs530x_adc_ch34_dapm_widgets)); + + snd_soc_dapm_add_routes(dapm, adc_ch3_4_routes, + ARRAY_SIZE(adc_ch3_4_routes)); +} + +static int cs530x_set_bclk(struct snd_soc_component *component, const int freq) +{ + struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component); + struct regmap *regmap = cs530x->regmap; + unsigned int bclk_val; + + switch (freq) { + case 2822400: + case 3072000: + bclk_val = CS530X_BCLK_2P822_3P072; + break; + case 5644800: + case 6144000: + bclk_val = CS530X_BCLK_5P6448_6P144; + break; + case 11289600: + case 12288000: + bclk_val = CS530X_BCLK_11P2896_12P288; + break; + case 22579200: + case 24576000: + bclk_val = CS530X_BCLK_24P5792_24P576; + break; + default: + dev_err(component->dev, "Invalid BCLK frequency %d\n", freq); + return -EINVAL; + } + + dev_dbg(component->dev, "BCLK frequency is %d\n", freq); + + return regmap_update_bits(regmap, CS530X_ASP_CFG, + CS530X_ASP_BCLK_FREQ_MASK, bclk_val); +} + +static int cs530x_set_pll_refclk(struct snd_soc_component *component, + const unsigned int freq) +{ + struct cs530x_priv *priv = snd_soc_component_get_drvdata(component); + struct regmap *regmap = priv->regmap; + unsigned int refclk; + + switch (freq) { + case 2822400: + case 3072000: + refclk = CS530X_REFCLK_2P822_3P072; + break; + case 5644800: + case 6144000: + refclk = CS530X_REFCLK_5P6448_6P144; + break; + case 11289600: + case 12288000: + refclk = CS530X_REFCLK_11P2896_12P288; + break; + case 22579200: + case 24576000: + refclk = CS530X_REFCLK_24P5792_24P576; + break; + default: + dev_err(component->dev, "Invalid PLL refclk %d\n", freq); + return -EINVAL; + } + + return regmap_update_bits(regmap, CS530X_CLK_CFG_0, + CS530X_PLL_REFCLK_FREQ_MASK, refclk); +} + +static int cs530x_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; + struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component); + struct regmap *regmap = cs530x->regmap; + int ret = 0, fs = params_rate(params), bclk; + unsigned int fs_val; + + + switch (fs) { + case 32000: + fs_val = CS530X_FS_32K; + break; + case 44100: + case 48000: + fs_val = CS530X_FS_48K_44P1K; + break; + case 88200: + case 96000: + fs_val = CS530X_FS_96K_88P2K; + break; + case 176400: + case 192000: + fs_val = CS530X_FS_192K_176P4K; + break; + case 356800: + case 384000: + fs_val = CS530X_FS_384K_356P8K; + break; + case 705600: + case 768000: + fs_val = CS530X_FS_768K_705P6K; + break; + default: + dev_err(component->dev, "Invalid sample rate %d\n", fs); + return -EINVAL; + } + + cs530x->fs = fs; + regmap_update_bits(regmap, CS530X_CLK_CFG_1, + CS530X_SAMPLE_RATE_MASK, fs_val); + + + if (regmap_test_bits(regmap, CS530X_SIGNAL_PATH_CFG, + CS530X_TDM_EN_MASK)) { + dev_dbg(component->dev, "Configuring for %d %d bit TDM slots\n", + cs530x->tdm_slots, cs530x->tdm_width); + bclk = snd_soc_tdm_params_to_bclk(params, + cs530x->tdm_width, + cs530x->tdm_slots, + 1); + } else { + bclk = snd_soc_params_to_bclk(params); + } + + if (!regmap_test_bits(regmap, CS530X_CLK_CFG_0, + CS530X_PLL_REFCLK_SRC_MASK)) { + ret = cs530x_set_pll_refclk(component, bclk); + if (ret) + return ret; + } + + return cs530x_set_bclk(component, bclk); +} + +static int cs530x_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_component *component = dai->component; + struct cs530x_priv *priv = snd_soc_component_get_drvdata(component); + struct regmap *regmap = priv->regmap; + unsigned int asp_fmt, asp_cfg = 0; + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + break; + case SND_SOC_DAIFMT_CBM_CFM: + asp_cfg = CS530X_ASP_PRIMARY; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_A: + asp_fmt = CS530X_ASP_FMT_DSP_A; + break; + case SND_SOC_DAIFMT_I2S: + asp_fmt = CS530X_ASP_FMT_I2S; + break; + case SND_SOC_DAIFMT_LEFT_J: + asp_fmt = CS530X_ASP_FMT_LJ; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_IF: + asp_cfg |= CS530X_ASP_BCLK_INV; + break; + default: + return -EINVAL; + } + + regmap_update_bits(regmap, CS530X_ASP_CFG, + CS530X_ASP_PRIMARY | CS530X_ASP_BCLK_INV, + asp_cfg); + + return regmap_update_bits(regmap, CS530X_SIGNAL_PATH_CFG, + CS530X_ASP_FMT_MASK, asp_fmt); +} + +static bool cs530x_check_mclk_freq(struct snd_soc_component *component, + const unsigned int freq) +{ + switch (freq) { + case 24576000: + case 22579200: + case 12288000: + case 11289600: + return true; + default: + dev_err(component->dev, "Invalid MCLK %d\n", freq); + return false; + } +} + +static int cs530x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, + unsigned int rx_mask, int slots, int slot_width) +{ + struct snd_soc_component *component = dai->component; + struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component); + struct regmap *regmap = cs530x->regmap; + unsigned int val; + + switch (tx_mask) { + case CS530X_0_1_TDM_SLOT_MASK: + case CS530X_0_3_TDM_SLOT_MASK: + case CS530X_0_7_TDM_SLOT_MASK: + val = CS530X_0_7_TDM_SLOT_VAL; + break; + case CS530X_2_3_TDM_SLOT_MASK: + val = CS530X_2_3_TDM_SLOT_VAL; + break; + case CS530X_4_5_TDM_SLOT_MASK: + case CS530X_4_7_TDM_SLOT_MASK: + val = CS530X_4_7_TDM_SLOT_VAL; + break; + case CS530X_6_7_TDM_SLOT_MASK: + val = CS530X_6_7_TDM_SLOT_VAL; + break; + case CS530X_8_9_TDM_SLOT_MASK: + case CS530X_8_11_TDM_SLOT_MASK: + case CS530X_8_15_TDM_SLOT_MASK: + val = CS530X_8_15_TDM_SLOT_VAL; + break; + case CS530X_10_11_TDM_SLOT_MASK: + val = CS530X_10_11_TDM_SLOT_VAL; + break; + case CS530X_12_13_TDM_SLOT_MASK: + case CS530X_12_15_TDM_SLOT_MASK: + val = CS530X_12_15_TDM_SLOT_VAL; + break; + case CS530X_14_15_TDM_SLOT_MASK: + val = CS530X_14_15_TDM_SLOT_VAL; + break; + default: + dev_err(component->dev, "Invalid TX slot(s) 0x%x\n", tx_mask); + return -EINVAL; + } + + cs530x->tdm_width = slot_width; + cs530x->tdm_slots = slots; + + return regmap_update_bits(regmap, CS530X_SIGNAL_PATH_CFG, + CS530X_ASP_TDM_SLOT_MASK, + val << CS530X_ASP_TDM_SLOT_SHIFT); +} + +static const struct snd_soc_dai_ops cs530x_dai_ops = { + .set_fmt = cs530x_set_fmt, + .hw_params = cs530x_hw_params, + .set_tdm_slot = cs530x_set_tdm_slot, +}; + +static const struct snd_soc_dai_driver cs530x_dai = { + .name = "cs530x-dai", + .capture = { + .stream_name = "AIF Capture", + .channels_min = 2, + .channels_max = 8, + .rates = SNDRV_PCM_RATE_KNOT, + .formats = SNDRV_PCM_FMTBIT_S32_LE, + }, + .ops = &cs530x_dai_ops, + .symmetric_rate = 1, + .symmetric_sample_bits = 1, +}; + +static int cs530x_set_pll(struct snd_soc_component *component, int pll_id, + int source, unsigned int freq_in, + unsigned int freq_out) +{ + struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component); + struct regmap *regmap = cs530x->regmap; + unsigned int sysclk_src; + int ret; + + regmap_read(regmap, CS530X_CLK_CFG_0, &sysclk_src); + + /* Check if the source is the PLL */ + if ((sysclk_src & CS530X_SYSCLK_SRC_MASK) == 0) + return 0; + + switch (source) { + case CS530X_PLL_SRC_MCLK: + if (!cs530x_check_mclk_freq(component, freq_in)) + return -EINVAL; + + ret = cs530x_set_pll_refclk(component, freq_in); + if (ret) + return ret; + + break; + case CS530X_PLL_SRC_BCLK: + break; + default: + dev_err(component->dev, "Invalid PLL source %d\n", source); + return -EINVAL; + } + + return regmap_update_bits(regmap, CS530X_CLK_CFG_0, + CS530X_PLL_REFCLK_SRC_MASK, source); +} + +static int cs530x_component_probe(struct snd_soc_component *component) +{ + struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component); + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + int num_widgets; + + snd_soc_dapm_new_controls(dapm, cs530x_gen_dapm_widgets, + ARRAY_SIZE(cs530x_gen_dapm_widgets)); + + switch (cs530x->devtype) { + case CS5302: + cs530x_add_12_adc_widgets(component); + break; + case CS5304: + cs530x_add_12_adc_widgets(component); + cs530x_add_34_adc_widgets(component); + + num_widgets = ARRAY_SIZE(cs530x_in_sum_4ch_controls); + snd_soc_add_component_controls(component, + cs530x_in_sum_4ch_controls, + num_widgets); + break; + + case CS5308: + cs530x_add_12_adc_widgets(component); + cs530x_add_34_adc_widgets(component); + + num_widgets = ARRAY_SIZE(cs530x_in_5_to_8_controls); + snd_soc_add_component_controls(component, + cs530x_in_5_to_8_controls, + num_widgets); + + num_widgets = ARRAY_SIZE(cs530x_in_sum_8ch_controls); + snd_soc_add_component_controls(component, + cs530x_in_sum_8ch_controls, + num_widgets); + + num_widgets = ARRAY_SIZE(cs530x_adc_ch58_dapm_widgets); + snd_soc_dapm_new_controls(dapm, cs530x_adc_ch58_dapm_widgets, + num_widgets); + + snd_soc_dapm_add_routes(dapm, adc_ch5_8_routes, + ARRAY_SIZE(adc_ch5_8_routes)); + break; + default: + dev_err(component->dev, "Invalid device type %d\n", + cs530x->devtype); + return -EINVAL; + } + + return 0; +} + +static int cs530x_set_sysclk(struct snd_soc_component *component, int clk_id, + int source, unsigned int freq, int dir) +{ + struct cs530x_priv *cs530x = snd_soc_component_get_drvdata(component); + struct regmap *regmap = cs530x->regmap; + + switch (source) { + case CS530X_SYSCLK_SRC_MCLK: + if (freq != 24560000 && freq != 22572000) { + dev_err(component->dev, "Invalid MCLK source rate %d\n", + freq); + return -EINVAL; + } + + cs530x->mclk_rate = freq; + break; + case CS530X_SYSCLK_SRC_PLL: + break; + default: + dev_err(component->dev, "Invalid clock id %d\n", clk_id); + return -EINVAL; + } + + return regmap_update_bits(regmap, CS530X_CLK_CFG_0, + CS530X_SYSCLK_SRC_MASK, + source << CS530X_SYSCLK_SRC_SHIFT); +} + +static const struct snd_soc_component_driver soc_component_dev_cs530x = { + .probe = cs530x_component_probe, + .set_sysclk = cs530x_set_sysclk, + .set_pll = cs530x_set_pll, + .endianness = 1, +}; + +const struct regmap_config cs530x_regmap = { + .reg_bits = 16, + .val_bits = 16, + + .max_register = CS530X_MAX_REGISTER, + .readable_reg = cs530x_readable_register, + .writeable_reg = cs530x_writeable_register, + + .cache_type = REGCACHE_MAPLE, + .reg_defaults = cs530x_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(cs530x_reg_defaults), +}; +EXPORT_SYMBOL_NS_GPL(cs530x_regmap, SND_SOC_CS530X); + +static int cs530x_check_device_id(struct cs530x_priv *cs530x) +{ + struct device *dev = cs530x->dev; + unsigned int dev_id, rev; + int ret; + + ret = regmap_read(cs530x->regmap, CS530X_DEVID, &dev_id); + if (ret) + return dev_err_probe(dev, ret, "Can't read device ID\n"); + + ret = regmap_read(cs530x->regmap, CS530X_REVID, &rev); + if (ret) + return dev_err_probe(dev, ret, "Can't read REV ID\n"); + + dev_dbg(dev, "Device ID 0x%x Rev ID 0x%x\n", dev_id, rev); + + switch (dev_id) { + case CS530X_2CH_ADC_DEV_ID: + cs530x->num_adcs = 2; + break; + case CS530X_4CH_ADC_DEV_ID: + cs530x->num_adcs = 4; + break; + case CS530X_8CH_ADC_DEV_ID: + cs530x->num_adcs = 8; + break; + default: + return dev_err_probe(dev, -EINVAL, "Invalid device ID 0x%x\n", + dev_id); + } + + return 0; +} + +static int cs530x_parse_device_properties(struct cs530x_priv *cs530x) +{ + struct regmap *regmap = cs530x->regmap; + struct device *dev = cs530x->dev; + unsigned int val = 0; + + switch (cs530x->num_adcs) { + case 8: + if (device_property_read_bool(dev, "cirrus,in-hiz-pin78")) + val = CS530X_IN78_HIZ; + + if (device_property_read_bool(dev, "cirrus,in-hiz-pin56")) + val |= CS530X_IN56_HIZ; + + fallthrough; + case 4: + if (device_property_read_bool(dev, "cirrus,in-hiz-pin34")) + val |= CS530X_IN34_HIZ; + + fallthrough; + case 2: + if (device_property_read_bool(dev, "cirrus,in-hiz-pin12")) + val |= CS530X_IN12_HIZ; + + return regmap_set_bits(regmap, CS530X_IN_HIZ, val); + default: + return dev_err_probe(dev, -EINVAL, + "Invalid number of adcs %d\n", + cs530x->num_adcs); + } +} + +int cs530x_probe(struct cs530x_priv *cs530x) +{ + struct device *dev = cs530x->dev; + int ret, i; + + cs530x->dev_dai = devm_kmemdup(dev, &cs530x_dai, + sizeof(*(cs530x->dev_dai)), + GFP_KERNEL); + if (!cs530x->dev_dai) + return -ENOMEM; + + for (i = 0; i < ARRAY_SIZE(cs530x->supplies); i++) + cs530x->supplies[i].supply = cs530x_supply_names[i]; + + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(cs530x->supplies), + cs530x->supplies); + if (ret != 0) + return dev_err_probe(dev, ret, "Failed to request supplies"); + + ret = regulator_bulk_enable(ARRAY_SIZE(cs530x->supplies), + cs530x->supplies); + if (ret != 0) + return dev_err_probe(dev, ret, "Failed to enable supplies"); + + cs530x->reset_gpio = devm_gpiod_get_optional(dev, "reset", + GPIOD_OUT_HIGH); + if (IS_ERR(cs530x->reset_gpio)) { + ret = dev_err_probe(dev, PTR_ERR(cs530x->reset_gpio), + "Reset gpio not available\n"); + goto err_regulator; + } + + if (cs530x->reset_gpio) { + usleep_range(2000, 2100); + gpiod_set_value_cansleep(cs530x->reset_gpio, 0); + } + + usleep_range(5000, 5100); + ret = cs530x_check_device_id(cs530x); + if (ret) + goto err_reset; + + if (!cs530x->reset_gpio) { + ret = regmap_write(cs530x->regmap, CS530X_SW_RESET, + CS530X_SW_RST_VAL); + if (ret) { + dev_err_probe(dev, ret, "Soft Reset Failed\n"); + goto err_reset; + } + } + + ret = cs530x_parse_device_properties(cs530x); + if (ret) + goto err_reset; + + cs530x->dev_dai->capture.channels_max = cs530x->num_adcs; + + ret = devm_snd_soc_register_component(dev, + &soc_component_dev_cs530x, cs530x->dev_dai, 1); + if (ret) { + dev_err_probe(dev, ret, "Can't register cs530x component\n"); + goto err_reset; + } + + return 0; + +err_reset: + gpiod_set_value_cansleep(cs530x->reset_gpio, 1); + +err_regulator: + regulator_bulk_disable(ARRAY_SIZE(cs530x->supplies), + cs530x->supplies); + + return ret; +} +EXPORT_SYMBOL_NS_GPL(cs530x_probe, SND_SOC_CS530X); + +MODULE_DESCRIPTION("CS530X CODEC Driver"); +MODULE_AUTHOR("Paul Handrigan <paulha@opensource.cirrus.com>"); +MODULE_LICENSE("GPL"); |