v4.19.13 snapshot.
diff --git a/sound/soc/codecs/stac9766.c b/sound/soc/codecs/stac9766.c
new file mode 100644
index 0000000..f62101a
--- /dev/null
+++ b/sound/soc/codecs/stac9766.c
@@ -0,0 +1,342 @@
+/*
+ * stac9766.c -- ALSA SoC STAC9766 codec support
+ *
+ * Copyright 2009 Jon Smirl, Digispeaker
+ * Author: Jon Smirl <jonsmirl@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * Features:-
+ *
+ * o Support for AC97 Codec, S/PDIF
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/regmap.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/ac97_codec.h>
+#include <sound/initval.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#define STAC9766_VENDOR_ID 0x83847666
+#define STAC9766_VENDOR_ID_MASK 0xffffffff
+
+#define AC97_STAC_DA_CONTROL 0x6A
+#define AC97_STAC_ANALOG_SPECIAL 0x6E
+#define AC97_STAC_STEREO_MIC 0x78
+
+static const struct reg_default stac9766_reg_defaults[] = {
+ { 0x02, 0x8000 },
+ { 0x04, 0x8000 },
+ { 0x06, 0x8000 },
+ { 0x0a, 0x0000 },
+ { 0x0c, 0x8008 },
+ { 0x0e, 0x8008 },
+ { 0x10, 0x8808 },
+ { 0x12, 0x8808 },
+ { 0x14, 0x8808 },
+ { 0x16, 0x8808 },
+ { 0x18, 0x8808 },
+ { 0x1a, 0x0000 },
+ { 0x1c, 0x8000 },
+ { 0x20, 0x0000 },
+ { 0x22, 0x0000 },
+ { 0x28, 0x0a05 },
+ { 0x2c, 0xbb80 },
+ { 0x32, 0xbb80 },
+ { 0x3a, 0x2000 },
+ { 0x3e, 0x0100 },
+ { 0x4c, 0x0300 },
+ { 0x4e, 0xffff },
+ { 0x50, 0x0000 },
+ { 0x52, 0x0000 },
+ { 0x54, 0x0000 },
+ { 0x6a, 0x0000 },
+ { 0x6e, 0x1000 },
+ { 0x72, 0x0000 },
+ { 0x78, 0x0000 },
+};
+
+static const struct regmap_config stac9766_regmap_config = {
+ .reg_bits = 16,
+ .reg_stride = 2,
+ .val_bits = 16,
+ .max_register = 0x78,
+ .cache_type = REGCACHE_RBTREE,
+
+ .volatile_reg = regmap_ac97_default_volatile,
+
+ .reg_defaults = stac9766_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(stac9766_reg_defaults),
+};
+
+static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",
+ "Line", "Stereo Mix", "Mono Mix", "Phone"};
+static const char *stac9766_mono_mux[] = {"Mix", "Mic"};
+static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"};
+static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"};
+static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"};
+static const char *stac9766_record_all_mux[] = {"All analog",
+ "Analog plus DAC"};
+static const char *stac9766_boost1[] = {"0dB", "10dB"};
+static const char *stac9766_boost2[] = {"0dB", "20dB"};
+static const char *stac9766_stereo_mic[] = {"Off", "On"};
+
+static SOC_ENUM_DOUBLE_DECL(stac9766_record_enum,
+ AC97_REC_SEL, 8, 0, stac9766_record_mux);
+static SOC_ENUM_SINGLE_DECL(stac9766_mono_enum,
+ AC97_GENERAL_PURPOSE, 9, stac9766_mono_mux);
+static SOC_ENUM_SINGLE_DECL(stac9766_mic_enum,
+ AC97_GENERAL_PURPOSE, 8, stac9766_mic_mux);
+static SOC_ENUM_SINGLE_DECL(stac9766_SPDIF_enum,
+ AC97_STAC_DA_CONTROL, 1, stac9766_SPDIF_mux);
+static SOC_ENUM_SINGLE_DECL(stac9766_popbypass_enum,
+ AC97_GENERAL_PURPOSE, 15, stac9766_popbypass_mux);
+static SOC_ENUM_SINGLE_DECL(stac9766_record_all_enum,
+ AC97_STAC_ANALOG_SPECIAL, 12,
+ stac9766_record_all_mux);
+static SOC_ENUM_SINGLE_DECL(stac9766_boost1_enum,
+ AC97_MIC, 6, stac9766_boost1); /* 0/10dB */
+static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum,
+ AC97_STAC_ANALOG_SPECIAL, 2, stac9766_boost2); /* 0/20dB */
+static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum,
+ AC97_STAC_STEREO_MIC, 2, stac9766_stereo_mic);
+
+static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(master_tlv, -4650, 150, 0);
+static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(record_tlv, 0, 150, 0);
+static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(beep_tlv, -4500, 300, 0);
+static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(mix_tlv, -3450, 150, 0);
+
+static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = {
+ SOC_DOUBLE_TLV("Speaker Volume", AC97_MASTER, 8, 0, 31, 1, master_tlv),
+ SOC_SINGLE("Speaker Switch", AC97_MASTER, 15, 1, 1),
+ SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1,
+ master_tlv),
+ SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1),
+ SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1,
+ master_tlv),
+ SOC_SINGLE("Mono Out Switch", AC97_MASTER_MONO, 15, 1, 1),
+
+ SOC_DOUBLE_TLV("Record Volume", AC97_REC_GAIN, 8, 0, 15, 0, record_tlv),
+ SOC_SINGLE("Record Switch", AC97_REC_GAIN, 15, 1, 1),
+
+
+ SOC_SINGLE_TLV("Beep Volume", AC97_PC_BEEP, 1, 15, 1, beep_tlv),
+ SOC_SINGLE("Beep Switch", AC97_PC_BEEP, 15, 1, 1),
+ SOC_SINGLE("Beep Frequency", AC97_PC_BEEP, 5, 127, 1),
+ SOC_SINGLE_TLV("Phone Volume", AC97_PHONE, 0, 31, 1, mix_tlv),
+ SOC_SINGLE("Phone Switch", AC97_PHONE, 15, 1, 1),
+
+ SOC_ENUM("Mic Boost1", stac9766_boost1_enum),
+ SOC_ENUM("Mic Boost2", stac9766_boost2_enum),
+ SOC_SINGLE_TLV("Mic Volume", AC97_MIC, 0, 31, 1, mix_tlv),
+ SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
+ SOC_ENUM("Stereo Mic", stac9766_stereo_mic_enum),
+
+ SOC_DOUBLE_TLV("Line Volume", AC97_LINE, 8, 0, 31, 1, mix_tlv),
+ SOC_SINGLE("Line Switch", AC97_LINE, 15, 1, 1),
+ SOC_DOUBLE_TLV("CD Volume", AC97_CD, 8, 0, 31, 1, mix_tlv),
+ SOC_SINGLE("CD Switch", AC97_CD, 15, 1, 1),
+ SOC_DOUBLE_TLV("AUX Volume", AC97_AUX, 8, 0, 31, 1, mix_tlv),
+ SOC_SINGLE("AUX Switch", AC97_AUX, 15, 1, 1),
+ SOC_DOUBLE_TLV("Video Volume", AC97_VIDEO, 8, 0, 31, 1, mix_tlv),
+ SOC_SINGLE("Video Switch", AC97_VIDEO, 15, 1, 1),
+
+ SOC_DOUBLE_TLV("DAC Volume", AC97_PCM, 8, 0, 31, 1, mix_tlv),
+ SOC_SINGLE("DAC Switch", AC97_PCM, 15, 1, 1),
+ SOC_SINGLE("Loopback Test Switch", AC97_GENERAL_PURPOSE, 7, 1, 0),
+ SOC_SINGLE("3D Volume", AC97_3D_CONTROL, 3, 2, 1),
+ SOC_SINGLE("3D Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
+
+ SOC_ENUM("SPDIF Mux", stac9766_SPDIF_enum),
+ SOC_ENUM("Mic1/2 Mux", stac9766_mic_enum),
+ SOC_ENUM("Record All Mux", stac9766_record_all_enum),
+ SOC_ENUM("Record Mux", stac9766_record_enum),
+ SOC_ENUM("Mono Mux", stac9766_mono_enum),
+ SOC_ENUM("Pop Bypass Mux", stac9766_popbypass_enum),
+};
+
+static int ac97_analog_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ unsigned short reg;
+
+ /* enable variable rate audio, disable SPDIF output */
+ snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x5, 0x1);
+
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+ reg = AC97_PCM_FRONT_DAC_RATE;
+ else
+ reg = AC97_PCM_LR_ADC_RATE;
+
+ return snd_soc_component_write(component, reg, runtime->rate);
+}
+
+static int ac97_digital_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ unsigned short reg;
+
+ snd_soc_component_write(component, AC97_SPDIF, 0x2002);
+
+ /* Enable VRA and SPDIF out */
+ snd_soc_component_update_bits(component, AC97_EXTENDED_STATUS, 0x5, 0x5);
+
+ reg = AC97_PCM_FRONT_DAC_RATE;
+
+ return snd_soc_component_write(component, reg, runtime->rate);
+}
+
+static int stac9766_set_bias_level(struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
+{
+ switch (level) {
+ case SND_SOC_BIAS_ON: /* full On */
+ case SND_SOC_BIAS_PREPARE: /* partial On */
+ case SND_SOC_BIAS_STANDBY: /* Off, with power */
+ snd_soc_component_write(component, AC97_POWERDOWN, 0x0000);
+ break;
+ case SND_SOC_BIAS_OFF: /* Off, without power */
+ /* disable everything including AC link */
+ snd_soc_component_write(component, AC97_POWERDOWN, 0xffff);
+ break;
+ }
+ return 0;
+}
+
+static int stac9766_component_resume(struct snd_soc_component *component)
+{
+ struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
+
+ return snd_ac97_reset(ac97, true, STAC9766_VENDOR_ID,
+ STAC9766_VENDOR_ID_MASK);
+}
+
+static const struct snd_soc_dai_ops stac9766_dai_ops_analog = {
+ .prepare = ac97_analog_prepare,
+};
+
+static const struct snd_soc_dai_ops stac9766_dai_ops_digital = {
+ .prepare = ac97_digital_prepare,
+};
+
+static struct snd_soc_dai_driver stac9766_dai[] = {
+{
+ .name = "stac9766-hifi-analog",
+
+ /* stream cababilities */
+ .playback = {
+ .stream_name = "stac9766 analog",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SND_SOC_STD_AC97_FMTS,
+ },
+ .capture = {
+ .stream_name = "stac9766 analog",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SND_SOC_STD_AC97_FMTS,
+ },
+ /* alsa ops */
+ .ops = &stac9766_dai_ops_analog,
+},
+{
+ .name = "stac9766-hifi-IEC958",
+
+ /* stream cababilities */
+ .playback = {
+ .stream_name = "stac9766 IEC958",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_32000 | \
+ SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
+ .formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
+ },
+ /* alsa ops */
+ .ops = &stac9766_dai_ops_digital,
+}
+};
+
+static int stac9766_component_probe(struct snd_soc_component *component)
+{
+ struct snd_ac97 *ac97;
+ struct regmap *regmap;
+ int ret;
+
+ ac97 = snd_soc_new_ac97_component(component, STAC9766_VENDOR_ID,
+ STAC9766_VENDOR_ID_MASK);
+ if (IS_ERR(ac97))
+ return PTR_ERR(ac97);
+
+ regmap = regmap_init_ac97(ac97, &stac9766_regmap_config);
+ if (IS_ERR(regmap)) {
+ ret = PTR_ERR(regmap);
+ goto err_free_ac97;
+ }
+
+ snd_soc_component_init_regmap(component, regmap);
+ snd_soc_component_set_drvdata(component, ac97);
+
+ return 0;
+err_free_ac97:
+ snd_soc_free_ac97_component(ac97);
+ return ret;
+}
+
+static void stac9766_component_remove(struct snd_soc_component *component)
+{
+ struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
+
+ snd_soc_component_exit_regmap(component);
+ snd_soc_free_ac97_component(ac97);
+}
+
+static const struct snd_soc_component_driver soc_component_dev_stac9766 = {
+ .controls = stac9766_snd_ac97_controls,
+ .num_controls = ARRAY_SIZE(stac9766_snd_ac97_controls),
+ .set_bias_level = stac9766_set_bias_level,
+ .probe = stac9766_component_probe,
+ .remove = stac9766_component_remove,
+ .resume = stac9766_component_resume,
+ .suspend_bias_off = 1,
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+ .non_legacy_dai_naming = 1,
+
+};
+
+static int stac9766_probe(struct platform_device *pdev)
+{
+ return devm_snd_soc_register_component(&pdev->dev,
+ &soc_component_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
+}
+
+static struct platform_driver stac9766_codec_driver = {
+ .driver = {
+ .name = "stac9766-codec",
+ },
+
+ .probe = stac9766_probe,
+};
+
+module_platform_driver(stac9766_codec_driver);
+
+MODULE_DESCRIPTION("ASoC stac9766 driver");
+MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
+MODULE_LICENSE("GPL");