mioa701_wm9713.c (6234B)
1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Handles the Mitac mioa701 SoC system 4 * 5 * Copyright (C) 2008 Robert Jarzmik 6 * 7 * This is a little schema of the sound interconnections : 8 * 9 * Sagem X200 Wolfson WM9713 10 * +--------+ +-------------------+ Rear Speaker 11 * | | | | /-+ 12 * | +--->----->---+MONOIN SPKL+--->----+-+ | 13 * | GSM | | | | | | 14 * | +--->----->---+PCBEEP SPKR+--->----+-+ | 15 * | CHIP | | | \-+ 16 * | +---<-----<---+MONO | 17 * | | | | Front Speaker 18 * +--------+ | | /-+ 19 * | HPL+--->----+-+ | 20 * | | | | | 21 * | OUT3+--->----+-+ | 22 * | | \-+ 23 * | | 24 * | | Front Micro 25 * | | + 26 * | MIC1+-----<--+o+ 27 * | | + 28 * +-------------------+ --- 29 */ 30 31#include <linux/module.h> 32#include <linux/moduleparam.h> 33#include <linux/platform_device.h> 34 35#include <asm/mach-types.h> 36#include <linux/platform_data/asoc-pxa.h> 37 38#include <sound/core.h> 39#include <sound/pcm.h> 40#include <sound/soc.h> 41#include <sound/initval.h> 42#include <sound/ac97_codec.h> 43 44#include "../codecs/wm9713.h" 45 46#define AC97_GPIO_PULL 0x58 47 48/* Use GPIO8 for rear speaker amplifier */ 49static int rear_amp_power(struct snd_soc_component *component, int power) 50{ 51 unsigned short reg; 52 53 if (power) { 54 reg = snd_soc_component_read(component, AC97_GPIO_CFG); 55 snd_soc_component_write(component, AC97_GPIO_CFG, reg | 0x0100); 56 reg = snd_soc_component_read(component, AC97_GPIO_PULL); 57 snd_soc_component_write(component, AC97_GPIO_PULL, reg | (1<<15)); 58 } else { 59 reg = snd_soc_component_read(component, AC97_GPIO_CFG); 60 snd_soc_component_write(component, AC97_GPIO_CFG, reg & ~0x0100); 61 reg = snd_soc_component_read(component, AC97_GPIO_PULL); 62 snd_soc_component_write(component, AC97_GPIO_PULL, reg & ~(1<<15)); 63 } 64 65 return 0; 66} 67 68static int rear_amp_event(struct snd_soc_dapm_widget *widget, 69 struct snd_kcontrol *kctl, int event) 70{ 71 struct snd_soc_card *card = widget->dapm->card; 72 struct snd_soc_pcm_runtime *rtd; 73 struct snd_soc_component *component; 74 75 rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]); 76 component = asoc_rtd_to_codec(rtd, 0)->component; 77 return rear_amp_power(component, SND_SOC_DAPM_EVENT_ON(event)); 78} 79 80/* mioa701 machine dapm widgets */ 81static const struct snd_soc_dapm_widget mioa701_dapm_widgets[] = { 82 SND_SOC_DAPM_SPK("Front Speaker", NULL), 83 SND_SOC_DAPM_SPK("Rear Speaker", rear_amp_event), 84 SND_SOC_DAPM_MIC("Headset", NULL), 85 SND_SOC_DAPM_LINE("GSM Line Out", NULL), 86 SND_SOC_DAPM_LINE("GSM Line In", NULL), 87 SND_SOC_DAPM_MIC("Headset Mic", NULL), 88 SND_SOC_DAPM_MIC("Front Mic", NULL), 89}; 90 91static const struct snd_soc_dapm_route audio_map[] = { 92 /* Call Mic */ 93 {"Mic Bias", NULL, "Front Mic"}, 94 {"MIC1", NULL, "Mic Bias"}, 95 96 /* Headset Mic */ 97 {"LINEL", NULL, "Headset Mic"}, 98 {"LINER", NULL, "Headset Mic"}, 99 100 /* GSM Module */ 101 {"MONOIN", NULL, "GSM Line Out"}, 102 {"PCBEEP", NULL, "GSM Line Out"}, 103 {"GSM Line In", NULL, "MONO"}, 104 105 /* headphone connected to HPL, HPR */ 106 {"Headset", NULL, "HPL"}, 107 {"Headset", NULL, "HPR"}, 108 109 /* front speaker connected to HPL, OUT3 */ 110 {"Front Speaker", NULL, "HPL"}, 111 {"Front Speaker", NULL, "OUT3"}, 112 113 /* rear speaker connected to SPKL, SPKR */ 114 {"Rear Speaker", NULL, "SPKL"}, 115 {"Rear Speaker", NULL, "SPKR"}, 116}; 117 118static int mioa701_wm9713_init(struct snd_soc_pcm_runtime *rtd) 119{ 120 struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; 121 122 /* Prepare GPIO8 for rear speaker amplifier */ 123 snd_soc_component_update_bits(component, AC97_GPIO_CFG, 0x100, 0x100); 124 125 /* Prepare MIC input */ 126 snd_soc_component_update_bits(component, AC97_3D_CONTROL, 0xc000, 0xc000); 127 128 return 0; 129} 130 131static struct snd_soc_ops mioa701_ops; 132 133SND_SOC_DAILINK_DEFS(ac97, 134 DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")), 135 DAILINK_COMP_ARRAY(COMP_CODEC("wm9713-codec", "wm9713-hifi")), 136 DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio"))); 137 138SND_SOC_DAILINK_DEFS(ac97_aux, 139 DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")), 140 DAILINK_COMP_ARRAY(COMP_CODEC("wm9713-codec", "wm9713-aux")), 141 DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio"))); 142 143static struct snd_soc_dai_link mioa701_dai[] = { 144 { 145 .name = "AC97", 146 .stream_name = "AC97 HiFi", 147 .init = mioa701_wm9713_init, 148 .ops = &mioa701_ops, 149 SND_SOC_DAILINK_REG(ac97), 150 }, 151 { 152 .name = "AC97 Aux", 153 .stream_name = "AC97 Aux", 154 .ops = &mioa701_ops, 155 SND_SOC_DAILINK_REG(ac97_aux), 156 }, 157}; 158 159static struct snd_soc_card mioa701 = { 160 .name = "MioA701", 161 .owner = THIS_MODULE, 162 .dai_link = mioa701_dai, 163 .num_links = ARRAY_SIZE(mioa701_dai), 164 165 .dapm_widgets = mioa701_dapm_widgets, 166 .num_dapm_widgets = ARRAY_SIZE(mioa701_dapm_widgets), 167 .dapm_routes = audio_map, 168 .num_dapm_routes = ARRAY_SIZE(audio_map), 169}; 170 171static int mioa701_wm9713_probe(struct platform_device *pdev) 172{ 173 int rc; 174 175 if (!machine_is_mioa701()) 176 return -ENODEV; 177 178 mioa701.dev = &pdev->dev; 179 rc = devm_snd_soc_register_card(&pdev->dev, &mioa701); 180 if (!rc) 181 dev_warn(&pdev->dev, "Be warned that incorrect mixers/muxes setup will " 182 "lead to overheating and possible destruction of your device." 183 " Do not use without a good knowledge of mio's board design!\n"); 184 return rc; 185} 186 187static struct platform_driver mioa701_wm9713_driver = { 188 .probe = mioa701_wm9713_probe, 189 .driver = { 190 .name = "mioa701-wm9713", 191 .pm = &snd_soc_pm_ops, 192 }, 193}; 194 195module_platform_driver(mioa701_wm9713_driver); 196 197/* Module information */ 198MODULE_AUTHOR("Robert Jarzmik (rjarzmik@free.fr)"); 199MODULE_DESCRIPTION("ALSA SoC WM9713 MIO A701"); 200MODULE_LICENSE("GPL"); 201MODULE_ALIAS("platform:mioa701-wm9713");