diff options
Diffstat (limited to '')
-rw-r--r-- | sound/soc/codecs/rt1019.c | 609 |
1 files changed, 609 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt1019.c b/sound/soc/codecs/rt1019.c new file mode 100644 index 0000000000..ceb8baa6a2 --- /dev/null +++ b/sound/soc/codecs/rt1019.c @@ -0,0 +1,609 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// rt1019.c -- RT1019 ALSA SoC audio amplifier driver +// Author: Jack Yu <jack.yu@realtek.com> +// +// Copyright(c) 2021 Realtek Semiconductor Corp. +// +// + +#include <linux/acpi.h> +#include <linux/fs.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/regmap.h> +#include <linux/i2c.h> +#include <linux/platform_device.h> +#include <linux/firmware.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> +#include <sound/initval.h> +#include <sound/tlv.h> + +#include "rl6231.h" +#include "rt1019.h" + +static const struct reg_default rt1019_reg[] = { + { 0x0000, 0x00 }, + { 0x0011, 0x04 }, + { 0x0013, 0x00 }, + { 0x0019, 0x30 }, + { 0x001b, 0x01 }, + { 0x005c, 0x00 }, + { 0x005e, 0x10 }, + { 0x005f, 0xec }, + { 0x0061, 0x10 }, + { 0x0062, 0x19 }, + { 0x0066, 0x08 }, + { 0x0100, 0x80 }, + { 0x0100, 0x51 }, + { 0x0102, 0x23 }, + { 0x0311, 0x00 }, + { 0x0312, 0x3e }, + { 0x0313, 0x86 }, + { 0x0400, 0x03 }, + { 0x0401, 0x02 }, + { 0x0402, 0x01 }, + { 0x0504, 0xff }, + { 0x0505, 0x24 }, + { 0x0b00, 0x50 }, + { 0x0b01, 0xc3 }, +}; + +static bool rt1019_volatile_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case RT1019_PWR_STRP_2: + case RT1019_VER_ID: + case RT1019_VEND_ID_1: + case RT1019_VEND_ID_2: + case RT1019_DEV_ID_1: + case RT1019_DEV_ID_2: + return true; + + default: + return false; + } +} + +static bool rt1019_readable_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case RT1019_RESET: + case RT1019_IDS_CTRL: + case RT1019_ASEL_CTRL: + case RT1019_PWR_STRP_2: + case RT1019_BEEP_TONE: + case RT1019_VER_ID: + case RT1019_VEND_ID_1: + case RT1019_VEND_ID_2: + case RT1019_DEV_ID_1: + case RT1019_DEV_ID_2: + case RT1019_SDB_CTRL: + case RT1019_CLK_TREE_1: + case RT1019_CLK_TREE_2: + case RT1019_CLK_TREE_3: + case RT1019_PLL_1: + case RT1019_PLL_2: + case RT1019_PLL_3: + case RT1019_TDM_1: + case RT1019_TDM_2: + case RT1019_TDM_3: + case RT1019_DMIX_MONO_1: + case RT1019_DMIX_MONO_2: + case RT1019_BEEP_1: + case RT1019_BEEP_2: + return true; + default: + return false; + } +} + +static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -9525, 75, 0); + +static const char * const rt1019_din_source_select[] = { + "Left", + "Right", + "Left + Right average", +}; + +static SOC_ENUM_SINGLE_DECL(rt1019_mono_lr_sel, RT1019_IDS_CTRL, 0, + rt1019_din_source_select); + +static const struct snd_kcontrol_new rt1019_snd_controls[] = { + SOC_SINGLE_TLV("DAC Playback Volume", RT1019_DMIX_MONO_1, 0, + 127, 0, dac_vol_tlv), + SOC_ENUM("Mono LR Select", rt1019_mono_lr_sel), +}; + +static int r1019_dac_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); + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + snd_soc_component_write(component, RT1019_SDB_CTRL, 0xb); + break; + case SND_SOC_DAPM_POST_PMD: + snd_soc_component_write(component, RT1019_SDB_CTRL, 0xa); + break; + default: + break; + } + + return 0; +} + +static const struct snd_soc_dapm_widget rt1019_dapm_widgets[] = { + SND_SOC_DAPM_AIF_IN("AIFRX", "AIF Playback", 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, + r1019_dac_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), + SND_SOC_DAPM_OUTPUT("SPO"), +}; + +static const struct snd_soc_dapm_route rt1019_dapm_routes[] = { + { "DAC", NULL, "AIFRX" }, + { "SPO", NULL, "DAC" }, +}; + +static int rt1019_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 rt1019_priv *rt1019 = snd_soc_component_get_drvdata(component); + int pre_div, bclk_ms, frame_size; + unsigned int val_len = 0, sys_div_da_filter = 0; + unsigned int sys_dac_osr = 0, sys_fifo_clk = 0; + unsigned int sys_clk_cal = 0, sys_asrc_in = 0; + + rt1019->lrck = params_rate(params); + pre_div = rl6231_get_clk_info(rt1019->sysclk, rt1019->lrck); + if (pre_div < 0) { + dev_err(component->dev, "Unsupported clock setting\n"); + return -EINVAL; + } + + frame_size = snd_soc_params_to_frame_size(params); + if (frame_size < 0) { + dev_err(component->dev, "Unsupported frame size: %d\n", frame_size); + return -EINVAL; + } + + bclk_ms = frame_size > 32; + rt1019->bclk = rt1019->lrck * (32 << bclk_ms); + + dev_dbg(dai->dev, "bclk is %dHz and lrck is %dHz\n", + rt1019->bclk, rt1019->lrck); + dev_dbg(dai->dev, "bclk_ms is %d and pre_div is %d for iis %d\n", + bclk_ms, pre_div, dai->id); + + switch (pre_div) { + case 0: + sys_div_da_filter = RT1019_SYS_DIV_DA_FIL_DIV1; + sys_dac_osr = RT1019_SYS_DA_OSR_DIV1; + sys_asrc_in = RT1019_ASRC_256FS_DIV1; + sys_fifo_clk = RT1019_SEL_FIFO_DIV1; + sys_clk_cal = RT1019_SEL_CLK_CAL_DIV1; + break; + case 1: + sys_div_da_filter = RT1019_SYS_DIV_DA_FIL_DIV2; + sys_dac_osr = RT1019_SYS_DA_OSR_DIV2; + sys_asrc_in = RT1019_ASRC_256FS_DIV2; + sys_fifo_clk = RT1019_SEL_FIFO_DIV2; + sys_clk_cal = RT1019_SEL_CLK_CAL_DIV2; + break; + case 3: + sys_div_da_filter = RT1019_SYS_DIV_DA_FIL_DIV4; + sys_dac_osr = RT1019_SYS_DA_OSR_DIV4; + sys_asrc_in = RT1019_ASRC_256FS_DIV4; + sys_fifo_clk = RT1019_SEL_FIFO_DIV4; + sys_clk_cal = RT1019_SEL_CLK_CAL_DIV4; + break; + default: + return -EINVAL; + } + + switch (params_width(params)) { + case 16: + break; + case 20: + val_len = RT1019_I2S_DL_20; + break; + case 24: + val_len = RT1019_I2S_DL_24; + break; + case 32: + val_len = RT1019_I2S_DL_32; + break; + case 8: + val_len = RT1019_I2S_DL_8; + break; + default: + return -EINVAL; + } + + snd_soc_component_update_bits(component, RT1019_TDM_2, RT1019_I2S_DL_MASK, + val_len); + snd_soc_component_update_bits(component, RT1019_CLK_TREE_1, + RT1019_SEL_FIFO_MASK, sys_fifo_clk); + snd_soc_component_update_bits(component, RT1019_CLK_TREE_2, + RT1019_SYS_DIV_DA_FIL_MASK | RT1019_SYS_DA_OSR_MASK | + RT1019_ASRC_256FS_MASK, sys_div_da_filter | sys_dac_osr | + sys_asrc_in); + snd_soc_component_update_bits(component, RT1019_CLK_TREE_3, + RT1019_SEL_CLK_CAL_MASK, sys_clk_cal); + + return 0; +} + +static int rt1019_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_component *component = dai->component; + unsigned int reg_val = 0, reg_val2 = 0; + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_NF: + break; + case SND_SOC_DAIFMT_IB_NF: + reg_val2 |= RT1019_TDM_BCLK_INV; + break; + default: + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + break; + + case SND_SOC_DAIFMT_LEFT_J: + reg_val |= RT1019_I2S_DF_LEFT; + break; + + case SND_SOC_DAIFMT_DSP_A: + reg_val |= RT1019_I2S_DF_PCM_A_R; + break; + + case SND_SOC_DAIFMT_DSP_B: + reg_val |= RT1019_I2S_DF_PCM_B_R; + break; + + default: + return -EINVAL; + } + + snd_soc_component_update_bits(component, RT1019_TDM_2, + RT1019_I2S_DF_MASK, reg_val); + snd_soc_component_update_bits(component, RT1019_TDM_1, + RT1019_TDM_BCLK_MASK, reg_val2); + + return 0; +} + +static int rt1019_set_dai_sysclk(struct snd_soc_dai *dai, + int clk_id, unsigned int freq, int dir) +{ + struct snd_soc_component *component = dai->component; + struct rt1019_priv *rt1019 = snd_soc_component_get_drvdata(component); + unsigned int reg_val = 0; + + if (freq == rt1019->sysclk && clk_id == rt1019->sysclk_src) + return 0; + + switch (clk_id) { + case RT1019_SCLK_S_BCLK: + reg_val |= RT1019_CLK_SYS_PRE_SEL_BCLK; + break; + + case RT1019_SCLK_S_PLL: + reg_val |= RT1019_CLK_SYS_PRE_SEL_PLL; + break; + + default: + dev_err(component->dev, "Invalid clock id (%d)\n", clk_id); + return -EINVAL; + } + + rt1019->sysclk = freq; + rt1019->sysclk_src = clk_id; + + dev_dbg(dai->dev, "Sysclk is %dHz and clock id is %d\n", freq, clk_id); + + snd_soc_component_update_bits(component, RT1019_CLK_TREE_1, + RT1019_CLK_SYS_PRE_SEL_MASK, reg_val); + + return 0; +} + +static int rt1019_set_dai_pll(struct snd_soc_dai *dai, int pll_id, int source, + unsigned int freq_in, unsigned int freq_out) +{ + struct snd_soc_component *component = dai->component; + struct rt1019_priv *rt1019 = snd_soc_component_get_drvdata(component); + struct rl6231_pll_code pll_code; + int ret; + + if (!freq_in || !freq_out) { + dev_dbg(component->dev, "PLL disabled\n"); + rt1019->pll_in = 0; + rt1019->pll_out = 0; + return 0; + } + + if (source == rt1019->pll_src && freq_in == rt1019->pll_in && + freq_out == rt1019->pll_out) + return 0; + + switch (source) { + case RT1019_PLL_S_BCLK: + snd_soc_component_update_bits(component, RT1019_CLK_TREE_1, + RT1019_PLL_SRC_MASK, RT1019_PLL_SRC_SEL_BCLK); + break; + + case RT1019_PLL_S_RC25M: + snd_soc_component_update_bits(component, RT1019_CLK_TREE_1, + RT1019_PLL_SRC_MASK, RT1019_PLL_SRC_SEL_RC); + break; + + default: + dev_err(component->dev, "Unknown PLL source %d\n", source); + return -EINVAL; + } + + ret = rl6231_pll_calc(freq_in, freq_out, &pll_code); + if (ret < 0) { + dev_err(component->dev, "Unsupported input clock %d\n", freq_in); + return ret; + } + + dev_dbg(component->dev, "bypass=%d m=%d n=%d k=%d\n", + pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code), + pll_code.n_code, pll_code.k_code); + + snd_soc_component_update_bits(component, RT1019_PWR_STRP_2, + RT1019_AUTO_BITS_SEL_MASK | RT1019_AUTO_CLK_SEL_MASK, + RT1019_AUTO_BITS_SEL_MANU | RT1019_AUTO_CLK_SEL_MANU); + snd_soc_component_update_bits(component, RT1019_PLL_1, + RT1019_PLL_M_MASK | RT1019_PLL_M_BP_MASK | RT1019_PLL_Q_8_8_MASK, + ((pll_code.m_bp ? 0 : pll_code.m_code) << RT1019_PLL_M_SFT) | + (pll_code.m_bp << RT1019_PLL_M_BP_SFT) | + ((pll_code.n_code >> 8) & RT1019_PLL_Q_8_8_MASK)); + snd_soc_component_update_bits(component, RT1019_PLL_2, + RT1019_PLL_Q_7_0_MASK, pll_code.n_code & RT1019_PLL_Q_7_0_MASK); + snd_soc_component_update_bits(component, RT1019_PLL_3, + RT1019_PLL_K_MASK, pll_code.k_code); + + rt1019->pll_in = freq_in; + rt1019->pll_out = freq_out; + rt1019->pll_src = source; + + return 0; +} + +static int rt1019_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; + unsigned int cn = 0, cl = 0, rx_slotnum; + int ret = 0, first_bit; + + switch (slots) { + case 4: + cn = RT1019_I2S_TX_4CH; + break; + case 6: + cn = RT1019_I2S_TX_6CH; + break; + case 8: + cn = RT1019_I2S_TX_8CH; + break; + case 2: + break; + default: + return -EINVAL; + } + + switch (slot_width) { + case 20: + cl = RT1019_TDM_CL_20; + break; + case 24: + cl = RT1019_TDM_CL_24; + break; + case 32: + cl = RT1019_TDM_CL_32; + break; + case 8: + cl = RT1019_TDM_CL_8; + break; + case 16: + break; + default: + return -EINVAL; + } + + /* Rx slot configuration */ + rx_slotnum = hweight_long(rx_mask); + if (rx_slotnum != 1) { + ret = -EINVAL; + dev_err(component->dev, "too many rx slots or zero slot\n"); + goto _set_tdm_err_; + } + /* This is an assumption that the system sends stereo audio to the + * amplifier typically. And the stereo audio is placed in slot 0/2/4/6 + * as the starting slot. The users could select the channel from + * L/R/L+R by "Mono LR Select" control. + */ + first_bit = __ffs(rx_mask); + switch (first_bit) { + case 0: + case 2: + case 4: + case 6: + snd_soc_component_update_bits(component, + RT1019_TDM_3, + RT1019_TDM_I2S_TX_L_DAC1_1_MASK | + RT1019_TDM_I2S_TX_R_DAC1_1_MASK, + (first_bit << RT1019_TDM_I2S_TX_L_DAC1_1_SFT) | + ((first_bit + 1) << RT1019_TDM_I2S_TX_R_DAC1_1_SFT)); + break; + case 1: + case 3: + case 5: + case 7: + snd_soc_component_update_bits(component, + RT1019_TDM_3, + RT1019_TDM_I2S_TX_L_DAC1_1_MASK | + RT1019_TDM_I2S_TX_R_DAC1_1_MASK, + ((first_bit - 1) << RT1019_TDM_I2S_TX_L_DAC1_1_SFT) | + (first_bit << RT1019_TDM_I2S_TX_R_DAC1_1_SFT)); + break; + default: + ret = -EINVAL; + goto _set_tdm_err_; + } + + snd_soc_component_update_bits(component, RT1019_TDM_1, + RT1019_TDM_CL_MASK, cl); + snd_soc_component_update_bits(component, RT1019_TDM_2, + RT1019_I2S_CH_TX_MASK, cn); + +_set_tdm_err_: + return ret; +} + +static int rt1019_probe(struct snd_soc_component *component) +{ + struct rt1019_priv *rt1019 = snd_soc_component_get_drvdata(component); + + rt1019->component = component; + snd_soc_component_write(component, RT1019_SDB_CTRL, 0xa); + + return 0; +} + +#define RT1019_STEREO_RATES SNDRV_PCM_RATE_8000_192000 +#define RT1019_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8) + +static const struct snd_soc_dai_ops rt1019_aif_dai_ops = { + .hw_params = rt1019_hw_params, + .set_fmt = rt1019_set_dai_fmt, + .set_sysclk = rt1019_set_dai_sysclk, + .set_pll = rt1019_set_dai_pll, + .set_tdm_slot = rt1019_set_tdm_slot, +}; + +static struct snd_soc_dai_driver rt1019_dai[] = { + { + .name = "rt1019-aif", + .id = 0, + .playback = { + .stream_name = "AIF Playback", + .channels_min = 1, + .channels_max = 2, + .rates = RT1019_STEREO_RATES, + .formats = RT1019_FORMATS, + }, + .ops = &rt1019_aif_dai_ops, + } +}; + +static const struct snd_soc_component_driver soc_component_dev_rt1019 = { + .probe = rt1019_probe, + .controls = rt1019_snd_controls, + .num_controls = ARRAY_SIZE(rt1019_snd_controls), + .dapm_widgets = rt1019_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(rt1019_dapm_widgets), + .dapm_routes = rt1019_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(rt1019_dapm_routes), + .endianness = 1, +}; + +static const struct regmap_config rt1019_regmap = { + .reg_bits = 16, + .val_bits = 8, + .use_single_read = true, + .use_single_write = true, + .max_register = RT1019_BEEP_2, + .volatile_reg = rt1019_volatile_register, + .readable_reg = rt1019_readable_register, + .cache_type = REGCACHE_MAPLE, + .reg_defaults = rt1019_reg, + .num_reg_defaults = ARRAY_SIZE(rt1019_reg), +}; + +static const struct i2c_device_id rt1019_i2c_id[] = { + { "rt1019", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, rt1019_i2c_id); + +static const struct of_device_id rt1019_of_match[] __maybe_unused = { + { .compatible = "realtek,rt1019", }, + {}, +}; +MODULE_DEVICE_TABLE(of, rt1019_of_match); + +#ifdef CONFIG_ACPI +static const struct acpi_device_id rt1019_acpi_match[] = { + { "10EC1019", 0}, + { }, +}; +MODULE_DEVICE_TABLE(acpi, rt1019_acpi_match); +#endif + +static int rt1019_i2c_probe(struct i2c_client *i2c) +{ + struct rt1019_priv *rt1019; + int ret; + unsigned int val, val2, dev_id; + + rt1019 = devm_kzalloc(&i2c->dev, sizeof(struct rt1019_priv), + GFP_KERNEL); + if (!rt1019) + return -ENOMEM; + + i2c_set_clientdata(i2c, rt1019); + + rt1019->regmap = devm_regmap_init_i2c(i2c, &rt1019_regmap); + if (IS_ERR(rt1019->regmap)) { + ret = PTR_ERR(rt1019->regmap); + dev_err(&i2c->dev, "Failed to allocate register map: %d\n", + ret); + return ret; + } + + regmap_read(rt1019->regmap, RT1019_DEV_ID_1, &val); + regmap_read(rt1019->regmap, RT1019_DEV_ID_2, &val2); + dev_id = val << 8 | val2; + if (dev_id != RT1019_DEVICE_ID_VAL && dev_id != RT1019_DEVICE_ID_VAL2) { + dev_err(&i2c->dev, + "Device with ID register 0x%x is not rt1019\n", dev_id); + return -ENODEV; + } + + return devm_snd_soc_register_component(&i2c->dev, + &soc_component_dev_rt1019, rt1019_dai, ARRAY_SIZE(rt1019_dai)); +} + +static struct i2c_driver rt1019_i2c_driver = { + .driver = { + .name = "rt1019", + .of_match_table = of_match_ptr(rt1019_of_match), + .acpi_match_table = ACPI_PTR(rt1019_acpi_match), + }, + .probe = rt1019_i2c_probe, + .id_table = rt1019_i2c_id, +}; +module_i2c_driver(rt1019_i2c_driver); + +MODULE_DESCRIPTION("ASoC RT1019 driver"); +MODULE_AUTHOR("Jack Yu <jack.yu@realtek.com>"); +MODULE_LICENSE("GPL v2"); |