sound: soc: bcm: Added Sound card driver for Dacberry400 Audio card for Raspberry...

Added Sound card driver for DACberry400 Audio card.

Signed-off-by: Ashish Vara <ashishhvara@gmail.com>

diff --git a/sound/soc/bcm/Kconfig b/sound/soc/bcm/Kconfig
index c857148..c865ad6 100644 (file)
--- 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 1efb734..46d1ece 100644 (file)
--- 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 (file)
index 0000000..55c2613
--- /dev/null
+++ b/sound/soc/bcm/dacberry400.c
@@ -0,0 +1,258 @@
+/*
+ * ASoC Driver for Dacberry400 soundcard
+ * Author:
+ *      Ashish Vara<ashishhvara@gmail.com>
+ *      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 <linux/module.h>
+#include <linux/gpio/consumer.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <linux/i2c.h>
+#include <linux/acpi.h>
+#include <linux/slab.h>
+#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)
+{
+       return snd_soc_unregister_card(&snd_rpi_dacberry400);
+}
+
+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");