From 065acd91052f5a42d66af3d4da2ec94b51e674ff Mon Sep 17 00:00:00 2001 From: Ashish Vara Date: Mon, 15 Aug 2022 01:09:07 +0530 Subject: [PATCH] sound: soc: bcm: Added Sound card driver for Dacberry400 Audio card for Raspberry Pi 400 Added Sound card driver for DACberry400 Audio card. Signed-off-by: Ashish Vara --- sound/soc/bcm/Kconfig | 7 + sound/soc/bcm/Makefile | 2 + sound/soc/bcm/dacberry400.c | 259 ++++++++++++++++++++++++++++++++++++ 3 files changed, 268 insertions(+) create mode 100644 sound/soc/bcm/dacberry400.c diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig index c85714895f1e..c865ad6f50b9 100644 --- a/sound/soc/bcm/Kconfig +++ b/sound/soc/bcm/Kconfig @@ -324,3 +324,10 @@ config SND_RPI_WM8804_SOUNDCARD help Say Y or M if you want to add support for the Raspberry Pi generic driver for WM8804 based soundcards. + +config SND_DACBERRY400 + tristate "Support for DACBERRY400 Soundcard" + depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S + select SND_SOC_TLV320AIC3X_I2C + help + Say Y or M if you want to add support for tlv320aic3x add-on diff --git a/sound/soc/bcm/Makefile b/sound/soc/bcm/Makefile index 1efb734f1c86..46d1ece070a3 100644 --- a/sound/soc/bcm/Makefile +++ b/sound/soc/bcm/Makefile @@ -48,6 +48,7 @@ snd-soc-rpi-simple-soundcard-objs := rpi-simple-soundcard.o snd-soc-rpi-wm8804-soundcard-objs := rpi-wm8804-soundcard.o snd-soc-pifi-40-objs := pifi-40.o snd-soc-chipdip-dac-objs := chipdip-dac.o +snd-soc-dacberry400-objs := dacberry400.o obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD) += snd-soc-googlevoicehat-codec.o obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o @@ -80,3 +81,4 @@ obj-$(CONFIG_SND_RPI_SIMPLE_SOUNDCARD) += snd-soc-rpi-simple-soundcard.o obj-$(CONFIG_SND_RPI_WM8804_SOUNDCARD) += snd-soc-rpi-wm8804-soundcard.o obj-$(CONFIG_SND_BCM2708_SOC_PIFI_40) += snd-soc-pifi-40.o obj-$(CONFIG_SND_BCM2708_SOC_CHIPDIP_DAC) += snd-soc-chipdip-dac.o +obj-$(CONFIG_SND_DACBERRY400) += snd-soc-dacberry400.o diff --git a/sound/soc/bcm/dacberry400.c b/sound/soc/bcm/dacberry400.c new file mode 100644 index 000000000000..284459320102 --- /dev/null +++ b/sound/soc/bcm/dacberry400.c @@ -0,0 +1,259 @@ +/* + * ASoC Driver for Dacberry400 soundcard + * Author: + * Ashish Vara + * Copyright 2022 + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "../sound/soc/codecs/tlv320aic3x.h" + +static const struct snd_kcontrol_new dacberry400_controls[] = { + SOC_DAPM_PIN_SWITCH("MIC Jack"), + SOC_DAPM_PIN_SWITCH("Line In"), + SOC_DAPM_PIN_SWITCH("Line Out"), + SOC_DAPM_PIN_SWITCH("Headphone Jack"), +}; + +static const struct snd_soc_dapm_widget dacberry400_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_MIC("MIC Jack", NULL), + SND_SOC_DAPM_LINE("Line In", NULL), + SND_SOC_DAPM_LINE("Line Out", NULL), +}; + +static const struct snd_soc_dapm_route dacberry400_audio_map[] = { + {"Headphone Jack", NULL, "HPLOUT"}, + {"Headphone Jack", NULL, "HPROUT"}, + + {"LINE1L", NULL, "Line In"}, + {"LINE1R", NULL, "Line In"}, + + {"Line Out", NULL, "LLOUT"}, + {"Line Out", NULL, "RLOUT"}, + + {"MIC3L", NULL, "MIC Jack"}, + {"MIC3R", NULL, "MIC Jack"}, +}; + +static int snd_rpi_dacberry400_init(struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + struct snd_soc_component *component = codec_dai->component; + int ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, 2, 12000000, + SND_SOC_CLOCK_OUT); + + if (ret && ret != -ENOTSUPP) + goto err; + + snd_soc_component_write(component, HPRCOM_CFG, 0x20); + snd_soc_component_write(component, DACL1_2_HPLOUT_VOL, 0x80); + snd_soc_component_write(component, DACR1_2_HPROUT_VOL, 0x80); +err: + return ret; +} + +static int snd_rpi_dacberry400_set_bias_level(struct snd_soc_card *card, + struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level) +{ + struct snd_soc_pcm_runtime *rtd; + struct snd_soc_dai *codec_dai; + struct snd_soc_component *component; + struct dacberry_priv *aic3x; + u8 hpcom_reg = 0; + + rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]); + codec_dai = asoc_rtd_to_codec(rtd, 0); + component = codec_dai->component; + aic3x = snd_soc_component_get_drvdata(component); + if (dapm->dev != codec_dai->dev) + return 0; + + switch (level) { + case SND_SOC_BIAS_PREPARE: + if (dapm->bias_level != SND_SOC_BIAS_STANDBY) + break; + /* UNMUTE ADC/DAC */ + hpcom_reg = snd_soc_component_read(component, HPLCOM_CFG); + snd_soc_component_write(component, HPLCOM_CFG, hpcom_reg | 0x20); + snd_soc_component_write(component, LINE1R_2_RADC_CTRL, 0x04); + snd_soc_component_write(component, LINE1L_2_LADC_CTRL, 0x04); + snd_soc_component_write(component, LADC_VOL, 0x00); + snd_soc_component_write(component, RADC_VOL, 0x00); + pr_info("%s: unmute ADC/DAC\n", __func__); + break; + + case SND_SOC_BIAS_STANDBY: + if (dapm->bias_level != SND_SOC_BIAS_PREPARE) + break; + /* MUTE ADC/DAC */ + snd_soc_component_write(component, LDAC_VOL, 0x80); + snd_soc_component_write(component, RDAC_VOL, 0x80); + snd_soc_component_write(component, LADC_VOL, 0x80); + snd_soc_component_write(component, RADC_VOL, 0x80); + snd_soc_component_write(component, LINE1R_2_RADC_CTRL, 0x00); + snd_soc_component_write(component, LINE1L_2_LADC_CTRL, 0x00); + snd_soc_component_write(component, HPLCOM_CFG, 0x00); + pr_info("%s: mute ADC/DAC\n", __func__); + break; + default: + break; + } + + return 0; +} + +static int snd_rpi_dacberry400_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + int ret = 0; + u8 data; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + struct snd_soc_component *component = codec_dai->component; + int fsref = (params_rate(params) % 11025 == 0) ? 44100 : 48000; + int channels = params_channels(params); + int width = 32; + u8 clock = 0; + + data = (LDAC2LCH | RDAC2RCH); + data |= (fsref == 44100) ? FSREF_44100 : FSREF_48000; + if (params_rate(params) >= 64000) + data |= DUAL_RATE_MODE; + ret = snd_soc_component_write(component, 0x7, data); + width = params_width(params); + + clock = snd_soc_component_read(component, 2); + + ret = snd_soc_dai_set_bclk_ratio(cpu_dai, channels*width); + + return ret; +} + +static const struct snd_soc_ops snd_rpi_dacberry400_ops = { + .hw_params = snd_rpi_dacberry400_hw_params, +}; + + +SND_SOC_DAILINK_DEFS(rpi_dacberry400, + DAILINK_COMP_ARRAY(COMP_CPU("bcm2835-i2s.0")), + DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x.1-0018", "tlv320aic3x-hifi")), + DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2835-i2s.0"))); + +static struct snd_soc_dai_link snd_rpi_dacberry400_dai[] = { +{ + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, + .init = snd_rpi_dacberry400_init, + .ops = &snd_rpi_dacberry400_ops, + .symmetric_rate = 1, + SND_SOC_DAILINK_REG(rpi_dacberry400), +}, +}; + +static struct snd_soc_card snd_rpi_dacberry400 = { + .owner = THIS_MODULE, + .dai_link = snd_rpi_dacberry400_dai, + .num_links = ARRAY_SIZE(snd_rpi_dacberry400_dai), + .controls = dacberry400_controls, + .num_controls = ARRAY_SIZE(dacberry400_controls), + .dapm_widgets = dacberry400_widgets, + .num_dapm_widgets = ARRAY_SIZE(dacberry400_widgets), + .dapm_routes = dacberry400_audio_map, + .num_dapm_routes = ARRAY_SIZE(dacberry400_audio_map), + .set_bias_level = snd_rpi_dacberry400_set_bias_level, +}; + +static int snd_rpi_dacberry400_probe(struct platform_device *pdev) +{ + int ret = 0; + + snd_rpi_dacberry400.dev = &pdev->dev; + + if (pdev->dev.of_node) { + struct device_node *i2s_node; + struct snd_soc_card *card = &snd_rpi_dacberry400; + struct snd_soc_dai_link *dai = &snd_rpi_dacberry400_dai[0]; + + i2s_node = of_parse_phandle(pdev->dev.of_node, + "i2s-controller", 0); + if (i2s_node) { + dai->cpus->dai_name = NULL; + dai->cpus->of_node = i2s_node; + dai->platforms->name = NULL; + dai->platforms->of_node = i2s_node; + of_node_put(i2s_node); + } + + if (of_property_read_string(pdev->dev.of_node, "card_name", + &card->name)) + card->name = "tlvaudioCODEC"; + + if (of_property_read_string(pdev->dev.of_node, "dai_name", + &dai->name)) + dai->name = "tlvaudio CODEC"; + + } + + ret = snd_soc_register_card(&snd_rpi_dacberry400); + if (ret) { + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, + "snd_soc_register_card() failed: %d\n", ret); + return ret; + } + + return 0; +} + +static int snd_rpi_dacberry400_remove(struct platform_device *pdev) +{ + snd_soc_unregister_card(&snd_rpi_dacberry400); + return 0; +} + +static const struct of_device_id dacberry400_match_id[] = { + { .compatible = "osaelectronics,dacberry400",}, + {}, +}; +MODULE_DEVICE_TABLE(of, dacberry400_match_id); + +static struct platform_driver snd_rpi_dacberry400_driver = { + .driver = { + .name = "snd-rpi-dacberry400", + .owner = THIS_MODULE, + .of_match_table = dacberry400_match_id, + }, + .probe = snd_rpi_dacberry400_probe, + .remove = snd_rpi_dacberry400_remove, +}; + +module_platform_driver(snd_rpi_dacberry400_driver); + +MODULE_AUTHOR("Ashish Vara"); +MODULE_DESCRIPTION("Dacberry400 sound card driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:dacberry400"); +MODULE_SOFTDEP("pre: snd-soc-tlv320aic3x");