From: Weidong Wang wangweidong.a@awinic.com
Add i2c and amplifier registration for aw88261 and their associated operation functions
Signed-off-by: Weidong Wang wangweidong.a@awinic.com --- sound/soc/codecs/aw88261/aw88261.c | 517 +++++++++++++++++++++++++++++ sound/soc/codecs/aw88261/aw88261.h | 52 +++ 2 files changed, 569 insertions(+) create mode 100644 sound/soc/codecs/aw88261/aw88261.c create mode 100644 sound/soc/codecs/aw88261/aw88261.h
diff --git a/sound/soc/codecs/aw88261/aw88261.c b/sound/soc/codecs/aw88261/aw88261.c new file mode 100644 index 000000000000..b0e2970a27c4 --- /dev/null +++ b/sound/soc/codecs/aw88261/aw88261.c @@ -0,0 +1,517 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// aw88261.c -- ALSA SoC AW88261 codec support +// +// Copyright (c) 2023 awinic Technology CO., LTD +// +// Author: Jimmy Zhang zhangjianming@awinic.com +// Author: Weidong Wang wangweidong.a@awinic.com +// + +#include <linux/i2c.h> +#include <linux/firmware.h> +#include <linux/of_gpio.h> +#include <linux/regmap.h> +#include <sound/soc.h> +#include "aw88261.h" +#include "aw88261_device.h" +#include "aw88261_reg.h" + +static const struct regmap_config aw88261_remap_config = { + .val_bits = 16, + .reg_bits = 8, + .max_register = AW88261_REG_MAX - 1, + .reg_format_endian = REGMAP_ENDIAN_LITTLE, + .val_format_endian = REGMAP_ENDIAN_BIG, +}; + +static void aw88261_start_pa(struct aw88261 *aw88261) +{ + int ret, i; + + for (i = 0; i < AW88261_START_RETRIES; i++) { + ret = aw88261_dev_reg_update(aw88261->aw_pa, aw88261->aw_pa->phase_sync); + if (ret < 0) { + dev_err(aw88261->aw_pa->dev, "fw update failed, cnt:%d\n", i); + continue; + } + ret = aw88261_dev_start(aw88261->aw_pa); + if (ret) { + dev_err(aw88261->aw_pa->dev, "aw88261 device start failed. retry = %d", i); + continue; + } else { + dev_info(aw88261->aw_pa->dev, "start success\n"); + break; + } + } +} + +static void aw88261_startup_work(struct work_struct *work) +{ + struct aw88261 *aw88261 = + container_of(work, struct aw88261, start_work.work); + + mutex_lock(&aw88261->lock); + aw88261_start_pa(aw88261); + mutex_unlock(&aw88261->lock); +} + +static void aw88261_start(struct aw88261 *aw88261, bool sync_start) +{ + if (aw88261->aw_pa->aw88261_base->fw_status != AW88261_DEV_FW_OK) + return; + + if (aw88261->aw_pa->aw88261_base->status == AW88261_DEV_PW_ON) + return; + + if (sync_start == AW88261_SYNC_START) + aw88261_start_pa(aw88261); + else + queue_delayed_work(system_wq, + &aw88261->start_work, + AW88261_START_WORK_DELAY_MS); +} + +static struct snd_soc_dai_driver aw88261_dai[] = { + { + .name = "aw88261-aif", + .id = 1, + .playback = { + .stream_name = "Speaker_Playback", + .channels_min = 1, + .channels_max = 2, + .rates = AW88261_RATES, + .formats = AW88261_FORMATS, + }, + .capture = { + .stream_name = "Speaker_Capture", + .channels_min = 1, + .channels_max = 2, + .rates = AW88261_RATES, + .formats = AW88261_FORMATS, + }, + }, +}; + +static int aw88261_get_fade_in_time(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(component); + struct aw88261_device *aw_dev = aw88261->aw_pa; + + ucontrol->value.integer.value[0] = aw_dev->aw88261_base->fade_in_time; + + return 0; +} + +static int aw88261_set_fade_in_time(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(component); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct aw88261_device *aw_dev = aw88261->aw_pa; + int time; + + time = ucontrol->value.integer.value[0]; + + if (time < mc->min || time > mc->max) + return -EINVAL; + + if (time != aw_dev->aw88261_base->fade_in_time) { + aw_dev->aw88261_base->fade_in_time = time; + return 1; + } + + return 0; +} + +static int aw88261_get_fade_out_time(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(component); + struct aw88261_device *aw_dev = aw88261->aw_pa; + + ucontrol->value.integer.value[0] = aw_dev->aw88261_base->fade_out_time; + + return 0; +} + +static int aw88261_set_fade_out_time(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(component); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct aw88261_device *aw_dev = aw88261->aw_pa; + int time; + + time = ucontrol->value.integer.value[0]; + if (time < mc->min || time > mc->max) + return -EINVAL; + + if (time != aw_dev->aw88261_base->fade_out_time) { + aw_dev->aw88261_base->fade_out_time = time; + return 1; + } + + return 0; +} + +static int aw88261_profile_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec); + const char *prof_name; + char *name; + int count; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + + count = aw88261->aw_pa->aw88261_base->prof_info.count; + if (count <= 0) { + uinfo->value.enumerated.items = 0; + return 0; + } + + uinfo->value.enumerated.items = count; + + if (uinfo->value.enumerated.item >= count) + uinfo->value.enumerated.item = count - 1; + + name = uinfo->value.enumerated.name; + count = uinfo->value.enumerated.item; + + prof_name = aw88261_dev_get_prof_name(aw88261->aw_pa, count); + if (!prof_name) { + strscpy(uinfo->value.enumerated.name, "null", + strlen("null") + 1); + return 0; + } + + strscpy(name, prof_name, sizeof(uinfo->value.enumerated.name)); + + return 0; +} + +static int aw88261_profile_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec); + + ucontrol->value.integer.value[0] = aw88261->aw_pa->aw88261_base->prof_index; + + return 0; +} + +static int aw88261_profile_set(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec); + int ret; + + /* pa stop or stopping just set profile */ + mutex_lock(&aw88261->lock); + ret = aw88261_dev_set_profile_index(aw88261->aw_pa, ucontrol->value.integer.value[0]); + if (ret < 0) { + dev_dbg(codec->dev, "profile index does not change"); + mutex_unlock(&aw88261->lock); + return 0; + } + + if (aw88261->aw_pa->aw88261_base->status) { + aw88261_dev_stop(aw88261->aw_pa); + aw88261_start(aw88261, AW88261_SYNC_START); + } + + mutex_unlock(&aw88261->lock); + + return 1; +} + +static int aw88261_volume_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec); + struct aw_volume_desc *vol_desc = &aw88261->aw_pa->aw88261_base->volume_desc; + + ucontrol->value.integer.value[0] = vol_desc->ctl_volume; + + return 0; +} + +static int aw88261_volume_set(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec); + struct aw_volume_desc *vol_desc = &aw88261->aw_pa->aw88261_base->volume_desc; + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + int value; + + value = ucontrol->value.integer.value[0]; + + if (value < mc->min || value > mc->max) + return -EINVAL; + + if (vol_desc->ctl_volume != value) { + vol_desc->ctl_volume = value; + aw88261_dev_set_volume(aw88261->aw_pa, vol_desc->ctl_volume); + + return 1; + } + + return 0; +} + +static int aw88261_get_fade_step(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec); + + ucontrol->value.integer.value[0] = aw88261->aw_pa->aw88261_base->fade_step; + + return 0; +} + +static int aw88261_set_fade_step(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(codec); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + int value; + + value = ucontrol->value.integer.value[0]; + if (value < mc->min || value > mc->max) + return -EINVAL; + + if (aw88261->aw_pa->aw88261_base->fade_step != value) { + aw88261->aw_pa->aw88261_base->fade_step = value; + return 1; + } + + return 0; +} + +static const struct snd_kcontrol_new aw88261_controls[] = { + SOC_SINGLE_EXT("PCM Playback Volume", AW88261_SYSCTRL2_REG, + 6, AW88261_MUTE_VOL, 0, aw88261_volume_get, + aw88261_volume_set), + SOC_SINGLE_EXT("Fade Step", 0, 0, AW88261_MUTE_VOL, 0, + aw88261_get_fade_step, aw88261_set_fade_step), + SOC_SINGLE_EXT("Volume Ramp Up Step", 0, 0, FADE_TIME_MAX, FADE_TIME_MIN, + aw88261_get_fade_in_time, aw88261_set_fade_in_time), + SOC_SINGLE_EXT("Volume Ramp Down Step", 0, 0, FADE_TIME_MAX, FADE_TIME_MIN, + aw88261_get_fade_out_time, aw88261_set_fade_out_time), + AW88261_PROFILE_EXT("Profile Set", aw88261_profile_info, + aw88261_profile_get, aw88261_profile_set), +}; + +static int aw88261_playback_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(component); + + mutex_lock(&aw88261->lock); + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + aw88261_start(aw88261, AW88261_ASYNC_START); + break; + case SND_SOC_DAPM_POST_PMD: + aw88261_dev_stop(aw88261->aw_pa); + break; + default: + break; + } + mutex_unlock(&aw88261->lock); + + return 0; +} + +static const struct snd_soc_dapm_widget aw88261_dapm_widgets[] = { + /* playback */ + SND_SOC_DAPM_AIF_IN_E("AIF_RX", "Speaker_Playback", 0, 0, 0, 0, + aw88261_playback_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), + SND_SOC_DAPM_OUTPUT("DAC Output"), + + /* capture */ + SND_SOC_DAPM_AIF_OUT("AIF_TX", "Speaker_Capture", 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_INPUT("ADC Input"), +}; + +static const struct snd_soc_dapm_route aw88261_audio_map[] = { + {"DAC Output", NULL, "AIF_RX"}, + {"AIF_TX", NULL, "ADC Input"}, +}; + +static int aw88261_request_firmware_file(struct aw88261 *aw88261) +{ + const struct firmware *cont = NULL; + int ret; + + aw88261->aw_pa->aw88261_base->fw_status = AW88261_DEV_FW_FAILED; + + ret = request_firmware(&cont, AW88261_ACF_FILE, aw88261->aw_pa->dev); + if (ret < 0) { + dev_err_probe(aw88261->aw_pa->dev, ret, "load [%s] failed!", AW88261_ACF_FILE); + return ret; + } + + dev_info(aw88261->aw_pa->dev, "loaded %s - size: %zu\n", + AW88261_ACF_FILE, cont ? cont->size : 0); + + aw88261->aw_cfg = devm_kzalloc(aw88261->aw_pa->dev, cont->size + sizeof(int), GFP_KERNEL); + if (!aw88261->aw_cfg) { + release_firmware(cont); + return -ENOMEM; + } + aw88261->aw_cfg->len = (int)cont->size; + memcpy(aw88261->aw_cfg->data, cont->data, cont->size); + release_firmware(cont); + + ret = aw88395_dev_load_acf_check(aw88261->aw_pa->aw88261_base, aw88261->aw_cfg); + if (ret < 0) { + dev_err_probe(aw88261->aw_pa->dev, ret, "Load [%s] failed !", AW88261_ACF_FILE); + return ret; + } + + mutex_lock(&aw88261->lock); + /* aw device init */ + ret = aw88261_dev_init(aw88261->aw_pa, aw88261->aw_cfg); + if (ret < 0) + dev_err(aw88261->aw_pa->dev, "dev init failed"); + mutex_unlock(&aw88261->lock); + + return ret; +} + +static int aw88261_codec_probe(struct snd_soc_component *component) +{ + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(component); + int ret; + + INIT_DELAYED_WORK(&aw88261->start_work, aw88261_startup_work); + + ret = aw88261_request_firmware_file(aw88261); + if (ret < 0) { + dev_err_probe(aw88261->aw_pa->dev, ret, "aw88261_request_firmware_file failed\n"); + return ret; + } + + /* add widgets */ + ret = snd_soc_dapm_new_controls(dapm, aw88261_dapm_widgets, + ARRAY_SIZE(aw88261_dapm_widgets)); + if (ret < 0) + return ret; + + /* add route */ + ret = snd_soc_dapm_add_routes(dapm, aw88261_audio_map, + ARRAY_SIZE(aw88261_audio_map)); + if (ret < 0) + return ret; + + ret = snd_soc_add_component_controls(component, aw88261_controls, + ARRAY_SIZE(aw88261_controls)); + + return ret; +} + +static void aw88261_codec_remove(struct snd_soc_component *aw_codec) +{ + struct aw88261 *aw88261 = snd_soc_component_get_drvdata(aw_codec); + + cancel_delayed_work_sync(&aw88261->start_work); +} + +static const struct snd_soc_component_driver soc_codec_dev_aw88261 = { + .probe = aw88261_codec_probe, + .remove = aw88261_codec_remove, +}; + +static void aw88261_hw_reset(struct aw88261 *aw88261) +{ + gpiod_set_value_cansleep(aw88261->reset_gpio, 0); + usleep_range(AW88261_1000_US, AW88261_1000_US + 10); + gpiod_set_value_cansleep(aw88261->reset_gpio, 1); + usleep_range(AW88261_1000_US, AW88261_1000_US + 10); +} + +static int aw88261_i2c_probe(struct i2c_client *i2c) +{ + struct aw88261 *aw88261; + int ret; + + ret = i2c_check_functionality(i2c->adapter, I2C_FUNC_I2C); + if (!ret) { + dev_err_probe(&i2c->dev, ret, "check_functionality failed"); + return -ENXIO; + } + + aw88261 = devm_kzalloc(&i2c->dev, sizeof(struct aw88261), GFP_KERNEL); + if (!aw88261) + return -ENOMEM; + + mutex_init(&aw88261->lock); + + i2c_set_clientdata(i2c, aw88261); + + aw88261->reset_gpio = devm_gpiod_get_optional(&i2c->dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(aw88261->reset_gpio)) + dev_info(&i2c->dev, "reset gpio not defined\n"); + else + aw88261_hw_reset(aw88261); + + aw88261->regmap = devm_regmap_init_i2c(i2c, &aw88261_remap_config); + if (IS_ERR(aw88261->regmap)) { + ret = PTR_ERR(aw88261->regmap); + dev_err_probe(&i2c->dev, ret, "Failed to init regmap: %d\n", ret); + return ret; + } + + /* aw pa init */ + ret = aw88261_init(&aw88261->aw_pa, i2c, aw88261->regmap); + if (ret < 0) + return ret; + + ret = devm_snd_soc_register_component(&i2c->dev, + &soc_codec_dev_aw88261, + aw88261_dai, ARRAY_SIZE(aw88261_dai)); + if (ret < 0) + dev_err_probe(&i2c->dev, ret, "failed to register aw88261: %d", ret); + + return ret; +} + +static const struct i2c_device_id aw88261_i2c_id[] = { + { AW88261_I2C_NAME, 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, aw88261_i2c_id); + +static struct i2c_driver aw88261_i2c_driver = { + .driver = { + .name = AW88261_I2C_NAME, + }, + .probe = aw88261_i2c_probe, + .id_table = aw88261_i2c_id, +}; +module_i2c_driver(aw88261_i2c_driver); + +MODULE_DESCRIPTION("ASoC AW88261 Smart PA Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/aw88261/aw88261.h b/sound/soc/codecs/aw88261/aw88261.h new file mode 100644 index 000000000000..3f518b7623b6 --- /dev/null +++ b/sound/soc/codecs/aw88261/aw88261.h @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// aw88261.h -- ALSA SoC AW88261 codec support +// +// Copyright (c) 2023 awinic Technology CO., LTD +// +// Author: Jimmy Zhang zhangjianming@awinic.com +// Author: Weidong Wang wangweidong.a@awinic.com +// + +#ifndef __AW88261_H__ +#define __AW88261_H__ + +#define AW88261_CHIP_ID_REG (0x00) +#define AW88261_START_RETRIES (5) +#define AW88261_START_WORK_DELAY_MS (0) + +#define AW88261_I2C_NAME "aw88261_smartpa" + +#define AW88261_RATES (SNDRV_PCM_RATE_8000_48000 | \ + SNDRV_PCM_RATE_96000) +#define AW88261_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE) + +#define FADE_TIME_MAX 100000 +#define FADE_TIME_MIN 0 + +#define AW88261_PROFILE_EXT(xname, profile_info, profile_get, profile_set) \ +{ \ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ + .name = xname, \ + .info = profile_info, \ + .get = profile_get, \ + .put = profile_set, \ +} + +enum { + AW88261_SYNC_START = 0, + AW88261_ASYNC_START, +}; + +struct aw88261 { + struct aw88261_device *aw_pa; + struct mutex lock; + struct gpio_desc *reset_gpio; + struct delayed_work start_work; + struct regmap *regmap; + struct aw_container *aw_cfg; +}; + +#endif