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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 | // SPDX-License-Identifier: GPL-2.0-or-later /* * max9877.c -- amp driver for max9877 * * Copyright (C) 2009 Samsung Electronics Co.Ltd * Author: Joonyoung Shim <jy0922.shim@samsung.com> */ #include <linux/module.h> #include <linux/init.h> #include <linux/i2c.h> #include <linux/regmap.h> #include <sound/soc.h> #include <sound/tlv.h> #include "max9877.h" static const struct reg_default max9877_regs[] = { { 0, 0x40 }, { 1, 0x00 }, { 2, 0x00 }, { 3, 0x00 }, { 4, 0x49 }, }; static const DECLARE_TLV_DB_RANGE(max9877_pgain_tlv, 0, 1, TLV_DB_SCALE_ITEM(0, 900, 0), 2, 2, TLV_DB_SCALE_ITEM(2000, 0, 0) ); static const DECLARE_TLV_DB_RANGE(max9877_output_tlv, 0, 7, TLV_DB_SCALE_ITEM(-7900, 400, 1), 8, 15, TLV_DB_SCALE_ITEM(-4700, 300, 0), 16, 23, TLV_DB_SCALE_ITEM(-2300, 200, 0), 24, 31, TLV_DB_SCALE_ITEM(-700, 100, 0) ); static const char *max9877_out_mode[] = { "INA -> SPK", "INA -> HP", "INA -> SPK and HP", "INB -> SPK", "INB -> HP", "INB -> SPK and HP", "INA + INB -> SPK", "INA + INB -> HP", "INA + INB -> SPK and HP", }; static const char *max9877_osc_mode[] = { "1176KHz", "1100KHz", "700KHz", }; static const struct soc_enum max9877_enum[] = { SOC_ENUM_SINGLE(MAX9877_OUTPUT_MODE, 0, ARRAY_SIZE(max9877_out_mode), max9877_out_mode), SOC_ENUM_SINGLE(MAX9877_OUTPUT_MODE, MAX9877_OSC_OFFSET, ARRAY_SIZE(max9877_osc_mode), max9877_osc_mode), }; static const struct snd_kcontrol_new max9877_controls[] = { SOC_SINGLE_TLV("MAX9877 PGAINA Playback Volume", MAX9877_INPUT_MODE, 0, 2, 0, max9877_pgain_tlv), SOC_SINGLE_TLV("MAX9877 PGAINB Playback Volume", MAX9877_INPUT_MODE, 2, 2, 0, max9877_pgain_tlv), SOC_SINGLE_TLV("MAX9877 Amp Speaker Playback Volume", MAX9877_SPK_VOLUME, 0, 31, 0, max9877_output_tlv), SOC_DOUBLE_R_TLV("MAX9877 Amp HP Playback Volume", MAX9877_HPL_VOLUME, MAX9877_HPR_VOLUME, 0, 31, 0, max9877_output_tlv), SOC_SINGLE("MAX9877 INB Stereo Switch", MAX9877_INPUT_MODE, 4, 1, 1), SOC_SINGLE("MAX9877 INA Stereo Switch", MAX9877_INPUT_MODE, 5, 1, 1), SOC_SINGLE("MAX9877 Zero-crossing detection Switch", MAX9877_INPUT_MODE, 6, 1, 0), SOC_SINGLE("MAX9877 Bypass Mode Switch", MAX9877_OUTPUT_MODE, 6, 1, 0), SOC_ENUM("MAX9877 Output Mode", max9877_enum[0]), SOC_ENUM("MAX9877 Oscillator Mode", max9877_enum[1]), }; static const struct snd_soc_dapm_widget max9877_dapm_widgets[] = { SND_SOC_DAPM_INPUT("INA1"), SND_SOC_DAPM_INPUT("INA2"), SND_SOC_DAPM_INPUT("INB1"), SND_SOC_DAPM_INPUT("INB2"), SND_SOC_DAPM_INPUT("RXIN+"), SND_SOC_DAPM_INPUT("RXIN-"), SND_SOC_DAPM_PGA("SHDN", MAX9877_OUTPUT_MODE, 7, 1, NULL, 0), SND_SOC_DAPM_OUTPUT("OUT+"), SND_SOC_DAPM_OUTPUT("OUT-"), SND_SOC_DAPM_OUTPUT("HPL"), SND_SOC_DAPM_OUTPUT("HPR"), }; static const struct snd_soc_dapm_route max9877_dapm_routes[] = { { "SHDN", NULL, "INA1" }, { "SHDN", NULL, "INA2" }, { "SHDN", NULL, "INB1" }, { "SHDN", NULL, "INB2" }, { "OUT+", NULL, "RXIN+" }, { "OUT+", NULL, "SHDN" }, { "OUT-", NULL, "SHDN" }, { "OUT-", NULL, "RXIN-" }, { "HPL", NULL, "SHDN" }, { "HPR", NULL, "SHDN" }, }; static const struct snd_soc_component_driver max9877_component_driver = { .controls = max9877_controls, .num_controls = ARRAY_SIZE(max9877_controls), .dapm_widgets = max9877_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(max9877_dapm_widgets), .dapm_routes = max9877_dapm_routes, .num_dapm_routes = ARRAY_SIZE(max9877_dapm_routes), }; static const struct regmap_config max9877_regmap = { .reg_bits = 8, .val_bits = 8, .reg_defaults = max9877_regs, .num_reg_defaults = ARRAY_SIZE(max9877_regs), .cache_type = REGCACHE_RBTREE, }; static int max9877_i2c_probe(struct i2c_client *client) { struct regmap *regmap; int i; regmap = devm_regmap_init_i2c(client, &max9877_regmap); if (IS_ERR(regmap)) return PTR_ERR(regmap); /* Ensure the device is in reset state */ for (i = 0; i < ARRAY_SIZE(max9877_regs); i++) regmap_write(regmap, max9877_regs[i].reg, max9877_regs[i].def); return devm_snd_soc_register_component(&client->dev, &max9877_component_driver, NULL, 0); } static const struct i2c_device_id max9877_i2c_id[] = { { "max9877", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, max9877_i2c_id); static struct i2c_driver max9877_i2c_driver = { .driver = { .name = "max9877", }, .probe_new = max9877_i2c_probe, .id_table = max9877_i2c_id, }; module_i2c_driver(max9877_i2c_driver); MODULE_DESCRIPTION("ASoC MAX9877 amp driver"); MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); MODULE_LICENSE("GPL"); |