diff options
Diffstat (limited to 'sound/soc/codecs/aw88395/aw88395.c')
-rw-r--r-- | sound/soc/codecs/aw88395/aw88395.c | 579 |
1 files changed, 579 insertions, 0 deletions
diff --git a/sound/soc/codecs/aw88395/aw88395.c b/sound/soc/codecs/aw88395/aw88395.c new file mode 100644 index 0000000000..9dcd75dd79 --- /dev/null +++ b/sound/soc/codecs/aw88395/aw88395.c @@ -0,0 +1,579 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// aw88395.c -- ALSA SoC AW88395 codec support +// +// Copyright (c) 2022-2023 AWINIC Technology CO., LTD +// +// Author: Bruce zhao <zhaolei@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 "aw88395.h" +#include "aw88395_device.h" +#include "aw88395_lib.h" +#include "aw88395_reg.h" + +static const struct regmap_config aw88395_remap_config = { + .val_bits = 16, + .reg_bits = 8, + .max_register = AW88395_REG_MAX - 1, + .reg_format_endian = REGMAP_ENDIAN_LITTLE, + .val_format_endian = REGMAP_ENDIAN_BIG, +}; + +static void aw88395_start_pa(struct aw88395 *aw88395) +{ + int ret, i; + + for (i = 0; i < AW88395_START_RETRIES; i++) { + ret = aw88395_dev_start(aw88395->aw_pa); + if (ret) { + dev_err(aw88395->aw_pa->dev, "aw88395 device start failed. retry = %d", i); + ret = aw88395_dev_fw_update(aw88395->aw_pa, AW88395_DSP_FW_UPDATE_ON, true); + if (ret < 0) { + dev_err(aw88395->aw_pa->dev, "fw update failed"); + continue; + } + } else { + dev_info(aw88395->aw_pa->dev, "start success\n"); + break; + } + } +} + +static void aw88395_startup_work(struct work_struct *work) +{ + struct aw88395 *aw88395 = + container_of(work, struct aw88395, start_work.work); + + mutex_lock(&aw88395->lock); + aw88395_start_pa(aw88395); + mutex_unlock(&aw88395->lock); +} + +static void aw88395_start(struct aw88395 *aw88395, bool sync_start) +{ + int ret; + + if (aw88395->aw_pa->fw_status != AW88395_DEV_FW_OK) + return; + + if (aw88395->aw_pa->status == AW88395_DEV_PW_ON) + return; + + ret = aw88395_dev_fw_update(aw88395->aw_pa, AW88395_DSP_FW_UPDATE_OFF, true); + if (ret < 0) { + dev_err(aw88395->aw_pa->dev, "fw update failed."); + return; + } + + if (sync_start == AW88395_SYNC_START) + aw88395_start_pa(aw88395); + else + queue_delayed_work(system_wq, + &aw88395->start_work, + AW88395_START_WORK_DELAY_MS); +} + +static struct snd_soc_dai_driver aw88395_dai[] = { + { + .name = "aw88395-aif", + .id = 1, + .playback = { + .stream_name = "Speaker_Playback", + .channels_min = 1, + .channels_max = 2, + .rates = AW88395_RATES, + .formats = AW88395_FORMATS, + }, + .capture = { + .stream_name = "Speaker_Capture", + .channels_min = 1, + .channels_max = 2, + .rates = AW88395_RATES, + .formats = AW88395_FORMATS, + }, + }, +}; + +static int aw88395_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 aw88395 *aw88395 = snd_soc_component_get_drvdata(component); + struct aw_device *aw_dev = aw88395->aw_pa; + + ucontrol->value.integer.value[0] = aw_dev->fade_in_time; + + return 0; +} + +static int aw88395_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 aw88395 *aw88395 = snd_soc_component_get_drvdata(component); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct aw_device *aw_dev = aw88395->aw_pa; + int time; + + time = ucontrol->value.integer.value[0]; + + if (time < mc->min || time > mc->max) + return -EINVAL; + + if (time != aw_dev->fade_in_time) { + aw_dev->fade_in_time = time; + return 1; + } + + return 0; +} + +static int aw88395_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 aw88395 *aw88395 = snd_soc_component_get_drvdata(component); + struct aw_device *aw_dev = aw88395->aw_pa; + + ucontrol->value.integer.value[0] = aw_dev->fade_out_time; + + return 0; +} + +static int aw88395_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 aw88395 *aw88395 = snd_soc_component_get_drvdata(component); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct aw_device *aw_dev = aw88395->aw_pa; + int time; + + time = ucontrol->value.integer.value[0]; + if (time < mc->min || time > mc->max) + return -EINVAL; + + if (time != aw_dev->fade_out_time) { + aw_dev->fade_out_time = time; + return 1; + } + + return 0; +} + +static int aw88395_profile_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88395 *aw88395 = 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 = aw88395_dev_get_profile_count(aw88395->aw_pa); + 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 = aw88395_dev_get_prof_name(aw88395->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 aw88395_profile_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); + + ucontrol->value.integer.value[0] = aw88395_dev_get_profile_index(aw88395->aw_pa); + + return 0; +} + +static int aw88395_profile_set(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); + int ret; + + /* pa stop or stopping just set profile */ + mutex_lock(&aw88395->lock); + ret = aw88395_dev_set_profile_index(aw88395->aw_pa, ucontrol->value.integer.value[0]); + if (ret < 0) { + dev_dbg(codec->dev, "profile index does not change"); + mutex_unlock(&aw88395->lock); + return 0; + } + + if (aw88395->aw_pa->status) { + aw88395_dev_stop(aw88395->aw_pa); + aw88395_start(aw88395, AW88395_SYNC_START); + } + + mutex_unlock(&aw88395->lock); + + return 1; +} + +static int aw88395_volume_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); + struct aw_volume_desc *vol_desc = &aw88395->aw_pa->volume_desc; + + ucontrol->value.integer.value[0] = vol_desc->ctl_volume; + + return 0; +} + +static int aw88395_volume_set(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); + struct aw_volume_desc *vol_desc = &aw88395->aw_pa->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; + aw88395_dev_set_volume(aw88395->aw_pa, vol_desc->ctl_volume); + + return 1; + } + + return 0; +} + +static int aw88395_get_fade_step(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); + + ucontrol->value.integer.value[0] = aw88395->aw_pa->fade_step; + + return 0; +} + +static int aw88395_set_fade_step(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88395 *aw88395 = 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 (aw88395->aw_pa->fade_step != value) { + aw88395->aw_pa->fade_step = value; + return 1; + } + + return 0; +} + +static int aw88395_re_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); + struct aw_device *aw_dev = aw88395->aw_pa; + + ucontrol->value.integer.value[0] = aw_dev->cali_desc.cali_re; + + return 0; +} + +static int aw88395_re_set(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol); + struct aw88395 *aw88395 = snd_soc_component_get_drvdata(codec); + struct soc_mixer_control *mc = + (struct soc_mixer_control *)kcontrol->private_value; + struct aw_device *aw_dev = aw88395->aw_pa; + int value; + + value = ucontrol->value.integer.value[0]; + if (value < mc->min || value > mc->max) + return -EINVAL; + + if (aw_dev->cali_desc.cali_re != value) { + aw_dev->cali_desc.cali_re = value; + return 1; + } + + return 0; +} + +static const struct snd_kcontrol_new aw88395_controls[] = { + SOC_SINGLE_EXT("PCM Playback Volume", AW88395_SYSCTRL2_REG, + 6, AW88395_MUTE_VOL, 0, aw88395_volume_get, + aw88395_volume_set), + SOC_SINGLE_EXT("Fade Step", 0, 0, AW88395_MUTE_VOL, 0, + aw88395_get_fade_step, aw88395_set_fade_step), + SOC_SINGLE_EXT("Volume Ramp Up Step", 0, 0, FADE_TIME_MAX, FADE_TIME_MIN, + aw88395_get_fade_in_time, aw88395_set_fade_in_time), + SOC_SINGLE_EXT("Volume Ramp Down Step", 0, 0, FADE_TIME_MAX, FADE_TIME_MIN, + aw88395_get_fade_out_time, aw88395_set_fade_out_time), + SOC_SINGLE_EXT("Calib", 0, 0, 100, 0, + aw88395_re_get, aw88395_re_set), + AW88395_PROFILE_EXT("Profile Set", aw88395_profile_info, + aw88395_profile_get, aw88395_profile_set), +}; + +static int aw88395_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 aw88395 *aw88395 = snd_soc_component_get_drvdata(component); + + mutex_lock(&aw88395->lock); + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + aw88395_start(aw88395, AW88395_ASYNC_START); + break; + case SND_SOC_DAPM_POST_PMD: + aw88395_dev_stop(aw88395->aw_pa); + break; + default: + break; + } + mutex_unlock(&aw88395->lock); + + return 0; +} + +static const struct snd_soc_dapm_widget aw88395_dapm_widgets[] = { + /* playback */ + SND_SOC_DAPM_AIF_IN_E("AIF_RX", "Speaker_Playback", 0, 0, 0, 0, + aw88395_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 aw88395_audio_map[] = { + {"DAC Output", NULL, "AIF_RX"}, + {"AIF_TX", NULL, "ADC Input"}, +}; + +static int aw88395_codec_probe(struct snd_soc_component *component) +{ + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + struct aw88395 *aw88395 = snd_soc_component_get_drvdata(component); + int ret; + + INIT_DELAYED_WORK(&aw88395->start_work, aw88395_startup_work); + + /* add widgets */ + ret = snd_soc_dapm_new_controls(dapm, aw88395_dapm_widgets, + ARRAY_SIZE(aw88395_dapm_widgets)); + if (ret < 0) + return ret; + + /* add route */ + ret = snd_soc_dapm_add_routes(dapm, aw88395_audio_map, + ARRAY_SIZE(aw88395_audio_map)); + if (ret < 0) + return ret; + + ret = snd_soc_add_component_controls(component, aw88395_controls, + ARRAY_SIZE(aw88395_controls)); + + return ret; +} + +static void aw88395_codec_remove(struct snd_soc_component *aw_codec) +{ + struct aw88395 *aw88395 = snd_soc_component_get_drvdata(aw_codec); + + cancel_delayed_work_sync(&aw88395->start_work); +} + +static const struct snd_soc_component_driver soc_codec_dev_aw88395 = { + .probe = aw88395_codec_probe, + .remove = aw88395_codec_remove, +}; + +static struct aw88395 *aw88395_malloc_init(struct i2c_client *i2c) +{ + struct aw88395 *aw88395 = devm_kzalloc(&i2c->dev, + sizeof(struct aw88395), GFP_KERNEL); + if (!aw88395) + return NULL; + + mutex_init(&aw88395->lock); + + return aw88395; +} + +static void aw88395_hw_reset(struct aw88395 *aw88395) +{ + if (aw88395->reset_gpio) { + gpiod_set_value_cansleep(aw88395->reset_gpio, 0); + usleep_range(AW88395_1000_US, AW88395_1000_US + 10); + gpiod_set_value_cansleep(aw88395->reset_gpio, 1); + usleep_range(AW88395_1000_US, AW88395_1000_US + 10); + } else { + dev_err(aw88395->aw_pa->dev, "%s failed", __func__); + } +} + +static int aw88395_request_firmware_file(struct aw88395 *aw88395) +{ + const struct firmware *cont = NULL; + int ret; + + aw88395->aw_pa->fw_status = AW88395_DEV_FW_FAILED; + + ret = request_firmware(&cont, AW88395_ACF_FILE, aw88395->aw_pa->dev); + if ((ret < 0) || (!cont)) { + dev_err(aw88395->aw_pa->dev, "load [%s] failed!", AW88395_ACF_FILE); + return ret; + } + + dev_info(aw88395->aw_pa->dev, "loaded %s - size: %zu\n", + AW88395_ACF_FILE, cont ? cont->size : 0); + + aw88395->aw_cfg = devm_kzalloc(aw88395->aw_pa->dev, cont->size + sizeof(int), GFP_KERNEL); + if (!aw88395->aw_cfg) { + release_firmware(cont); + return -ENOMEM; + } + aw88395->aw_cfg->len = (int)cont->size; + memcpy(aw88395->aw_cfg->data, cont->data, cont->size); + release_firmware(cont); + + ret = aw88395_dev_load_acf_check(aw88395->aw_pa, aw88395->aw_cfg); + if (ret < 0) { + dev_err(aw88395->aw_pa->dev, "Load [%s] failed ....!", AW88395_ACF_FILE); + return ret; + } + + dev_dbg(aw88395->aw_pa->dev, "%s : bin load success\n", __func__); + + mutex_lock(&aw88395->lock); + /* aw device init */ + ret = aw88395_dev_init(aw88395->aw_pa, aw88395->aw_cfg); + if (ret < 0) + dev_err(aw88395->aw_pa->dev, "dev init failed"); + mutex_unlock(&aw88395->lock); + + return ret; +} + +static int aw88395_i2c_probe(struct i2c_client *i2c) +{ + struct aw88395 *aw88395; + int ret; + + if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_I2C)) { + dev_err(&i2c->dev, "check_functionality failed"); + return -EIO; + } + + aw88395 = aw88395_malloc_init(i2c); + if (!aw88395) { + dev_err(&i2c->dev, "malloc aw88395 failed"); + return -ENOMEM; + } + i2c_set_clientdata(i2c, aw88395); + + aw88395->reset_gpio = devm_gpiod_get_optional(&i2c->dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(aw88395->reset_gpio)) + dev_info(&i2c->dev, "reset gpio not defined\n"); + + /* hardware reset */ + aw88395_hw_reset(aw88395); + + aw88395->regmap = devm_regmap_init_i2c(i2c, &aw88395_remap_config); + if (IS_ERR(aw88395->regmap)) { + ret = PTR_ERR(aw88395->regmap); + dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret); + return ret; + } + + /* aw pa init */ + ret = aw88395_init(&aw88395->aw_pa, i2c, aw88395->regmap); + if (ret < 0) + return ret; + + ret = aw88395_request_firmware_file(aw88395); + if (ret < 0) { + dev_err(&i2c->dev, "%s failed\n", __func__); + return ret; + } + + ret = devm_snd_soc_register_component(&i2c->dev, + &soc_codec_dev_aw88395, + aw88395_dai, ARRAY_SIZE(aw88395_dai)); + if (ret < 0) { + dev_err(&i2c->dev, "failed to register aw88395: %d", ret); + return ret; + } + + return 0; +} + +static const struct i2c_device_id aw88395_i2c_id[] = { + { AW88395_I2C_NAME, 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, aw88395_i2c_id); + +static struct i2c_driver aw88395_i2c_driver = { + .driver = { + .name = AW88395_I2C_NAME, + }, + .probe = aw88395_i2c_probe, + .id_table = aw88395_i2c_id, +}; +module_i2c_driver(aw88395_i2c_driver); + +MODULE_DESCRIPTION("ASoC AW88395 Smart PA Driver"); +MODULE_LICENSE("GPL v2"); |