214 lines · c
1// SPDX-License-Identifier: GPL-2.0+2//3// Lowland audio support4//5// Copyright 2011 Wolfson Microelectronics6 7#include <sound/soc.h>8#include <sound/soc-dapm.h>9#include <sound/jack.h>10#include <linux/gpio.h>11#include <linux/module.h>12 13#include "../codecs/wm5100.h"14#include "../codecs/wm9081.h"15 16#define MCLK1_RATE (44100 * 512)17#define CLKOUT_RATE (44100 * 256)18 19static struct snd_soc_jack lowland_headset;20 21/* Headset jack detection DAPM pins */22static struct snd_soc_jack_pin lowland_headset_pins[] = {23 {24 .pin = "Headphone",25 .mask = SND_JACK_HEADPHONE,26 },27 {28 .pin = "Headset Mic",29 .mask = SND_JACK_MICROPHONE,30 },31 {32 .pin = "Line Out",33 .mask = SND_JACK_LINEOUT,34 },35};36 37static int lowland_wm5100_init(struct snd_soc_pcm_runtime *rtd)38{39 struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;40 int ret;41 42 ret = snd_soc_component_set_sysclk(component, WM5100_CLK_SYSCLK,43 WM5100_CLKSRC_MCLK1, MCLK1_RATE,44 SND_SOC_CLOCK_IN);45 if (ret < 0) {46 pr_err("Failed to set SYSCLK clock source: %d\n", ret);47 return ret;48 }49 50 /* Clock OPCLK, used by the other audio components. */51 ret = snd_soc_component_set_sysclk(component, WM5100_CLK_OPCLK, 0,52 CLKOUT_RATE, 0);53 if (ret < 0) {54 pr_err("Failed to set OPCLK rate: %d\n", ret);55 return ret;56 }57 58 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset",59 SND_JACK_LINEOUT | SND_JACK_HEADSET |60 SND_JACK_BTN_0,61 &lowland_headset, lowland_headset_pins,62 ARRAY_SIZE(lowland_headset_pins));63 if (ret)64 return ret;65 66 wm5100_detect(component, &lowland_headset);67 68 return 0;69}70 71static int lowland_wm9081_init(struct snd_soc_pcm_runtime *rtd)72{73 struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;74 75 snd_soc_dapm_nc_pin(&rtd->card->dapm, "LINEOUT");76 77 /* At any time the WM9081 is active it will have this clock */78 return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0,79 CLKOUT_RATE, 0);80}81 82static const struct snd_soc_pcm_stream sub_params = {83 .formats = SNDRV_PCM_FMTBIT_S32_LE,84 .rate_min = 44100,85 .rate_max = 44100,86 .channels_min = 2,87 .channels_max = 2,88};89 90SND_SOC_DAILINK_DEFS(cpu,91 DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")),92 DAILINK_COMP_ARRAY(COMP_CODEC("wm5100.1-001a", "wm5100-aif1")),93 DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0")));94 95SND_SOC_DAILINK_DEFS(baseband,96 DAILINK_COMP_ARRAY(COMP_CPU("wm5100-aif2")),97 DAILINK_COMP_ARRAY(COMP_CODEC("wm1250-ev1.1-0027", "wm1250-ev1")));98 99SND_SOC_DAILINK_DEFS(speaker,100 DAILINK_COMP_ARRAY(COMP_CPU("wm5100-aif3")),101 DAILINK_COMP_ARRAY(COMP_CODEC("wm9081.1-006c", "wm9081-hifi")));102 103static struct snd_soc_dai_link lowland_dai[] = {104 {105 .name = "CPU",106 .stream_name = "CPU",107 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |108 SND_SOC_DAIFMT_CBM_CFM,109 .init = lowland_wm5100_init,110 SND_SOC_DAILINK_REG(cpu),111 },112 {113 .name = "Baseband",114 .stream_name = "Baseband",115 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |116 SND_SOC_DAIFMT_CBM_CFM,117 .ignore_suspend = 1,118 SND_SOC_DAILINK_REG(baseband),119 },120 {121 .name = "Sub Speaker",122 .stream_name = "Sub Speaker",123 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |124 SND_SOC_DAIFMT_CBM_CFM,125 .ignore_suspend = 1,126 .c2c_params = &sub_params,127 .num_c2c_params = 1,128 .init = lowland_wm9081_init,129 SND_SOC_DAILINK_REG(speaker),130 },131};132 133static struct snd_soc_codec_conf lowland_codec_conf[] = {134 {135 .dlc = COMP_CODEC_CONF("wm9081.1-006c"),136 .name_prefix = "Sub",137 },138};139 140static const struct snd_kcontrol_new controls[] = {141 SOC_DAPM_PIN_SWITCH("Main Speaker"),142 SOC_DAPM_PIN_SWITCH("Main DMIC"),143 SOC_DAPM_PIN_SWITCH("Main AMIC"),144 SOC_DAPM_PIN_SWITCH("WM1250 Input"),145 SOC_DAPM_PIN_SWITCH("WM1250 Output"),146 SOC_DAPM_PIN_SWITCH("Headphone"),147 SOC_DAPM_PIN_SWITCH("Line Out"),148};149 150static const struct snd_soc_dapm_widget widgets[] = {151 SND_SOC_DAPM_HP("Headphone", NULL),152 SND_SOC_DAPM_MIC("Headset Mic", NULL),153 SND_SOC_DAPM_LINE("Line Out", NULL),154 155 SND_SOC_DAPM_SPK("Main Speaker", NULL),156 157 SND_SOC_DAPM_MIC("Main AMIC", NULL),158 SND_SOC_DAPM_MIC("Main DMIC", NULL),159};160 161static const struct snd_soc_dapm_route audio_paths[] = {162 { "Sub IN1", NULL, "HPOUT2L" },163 { "Sub IN2", NULL, "HPOUT2R" },164 165 { "Main Speaker", NULL, "Sub SPKN" },166 { "Main Speaker", NULL, "Sub SPKP" },167 { "Main Speaker", NULL, "SPKDAT1" },168};169 170static struct snd_soc_card lowland = {171 .name = "Lowland",172 .owner = THIS_MODULE,173 .dai_link = lowland_dai,174 .num_links = ARRAY_SIZE(lowland_dai),175 .codec_conf = lowland_codec_conf,176 .num_configs = ARRAY_SIZE(lowland_codec_conf),177 178 .controls = controls,179 .num_controls = ARRAY_SIZE(controls),180 .dapm_widgets = widgets,181 .num_dapm_widgets = ARRAY_SIZE(widgets),182 .dapm_routes = audio_paths,183 .num_dapm_routes = ARRAY_SIZE(audio_paths),184};185 186static int lowland_probe(struct platform_device *pdev)187{188 struct snd_soc_card *card = &lowland;189 int ret;190 191 card->dev = &pdev->dev;192 193 ret = devm_snd_soc_register_card(&pdev->dev, card);194 if (ret)195 dev_err_probe(&pdev->dev, ret, "snd_soc_register_card() failed\n");196 197 return ret;198}199 200static struct platform_driver lowland_driver = {201 .driver = {202 .name = "lowland",203 .pm = &snd_soc_pm_ops,204 },205 .probe = lowland_probe,206};207 208module_platform_driver(lowland_driver);209 210MODULE_DESCRIPTION("Lowland audio support");211MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");212MODULE_LICENSE("GPL");213MODULE_ALIAS("platform:lowland");214