1/* 2 * e800-wm9712.c -- SoC audio for e800 3 * 4 * Copyright 2007 (c) Ian Molton <spyro@f2s.com> 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the 8 * Free Software Foundation; version 2 ONLY. 9 * 10 */ 11 12#include <linux/module.h> 13#include <linux/moduleparam.h> 14#include <linux/gpio.h> 15 16#include <sound/core.h> 17#include <sound/pcm.h> 18#include <sound/soc.h> 19 20#include <asm/mach-types.h> 21#include <mach/audio.h> 22#include <mach/eseries-gpio.h> 23 24#include "../codecs/wm9712.h" 25#include "pxa2xx-ac97.h" 26 27static int e800_spk_amp_event(struct snd_soc_dapm_widget *w, 28 struct snd_kcontrol *kcontrol, int event) 29{ 30 if (event & SND_SOC_DAPM_PRE_PMU) 31 gpio_set_value(GPIO_E800_SPK_AMP_ON, 1); 32 else if (event & SND_SOC_DAPM_POST_PMD) 33 gpio_set_value(GPIO_E800_SPK_AMP_ON, 0); 34 35 return 0; 36} 37 38static int e800_hp_amp_event(struct snd_soc_dapm_widget *w, 39 struct snd_kcontrol *kcontrol, int event) 40{ 41 if (event & SND_SOC_DAPM_PRE_PMU) 42 gpio_set_value(GPIO_E800_HP_AMP_OFF, 0); 43 else if (event & SND_SOC_DAPM_POST_PMD) 44 gpio_set_value(GPIO_E800_HP_AMP_OFF, 1); 45 46 return 0; 47} 48 49static const struct snd_soc_dapm_widget e800_dapm_widgets[] = { 50 SND_SOC_DAPM_HP("Headphone Jack", NULL), 51 SND_SOC_DAPM_MIC("Mic (Internal1)", NULL), 52 SND_SOC_DAPM_MIC("Mic (Internal2)", NULL), 53 SND_SOC_DAPM_SPK("Speaker", NULL), 54 SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0, 55 e800_hp_amp_event, SND_SOC_DAPM_PRE_PMU | 56 SND_SOC_DAPM_POST_PMD), 57 SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0, 58 e800_spk_amp_event, SND_SOC_DAPM_PRE_PMU | 59 SND_SOC_DAPM_POST_PMD), 60}; 61 62static const struct snd_soc_dapm_route audio_map[] = { 63 {"Headphone Jack", NULL, "HPOUTL"}, 64 {"Headphone Jack", NULL, "HPOUTR"}, 65 {"Headphone Jack", NULL, "Headphone Amp"}, 66 67 {"Speaker Amp", NULL, "MONOOUT"}, 68 {"Speaker", NULL, "Speaker Amp"}, 69 70 {"MIC1", NULL, "Mic (Internal1)"}, 71 {"MIC2", NULL, "Mic (Internal2)"}, 72}; 73 74static int e800_ac97_init(struct snd_soc_pcm_runtime *rtd) 75{ 76 struct snd_soc_codec *codec = rtd->codec; 77 struct snd_soc_dapm_context *dapm = &codec->dapm; 78 79 snd_soc_dapm_new_controls(dapm, e800_dapm_widgets, 80 ARRAY_SIZE(e800_dapm_widgets)); 81 82 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); 83 snd_soc_dapm_sync(dapm); 84 85 return 0; 86} 87 88static struct snd_soc_dai_link e800_dai[] = { 89 { 90 .name = "AC97", 91 .stream_name = "AC97 HiFi", 92 .cpu_dai_name = "pxa2xx-ac97", 93 .codec_dai_name = "wm9712-hifi", 94 .platform_name = "pxa-pcm-audio", 95 .codec_name = "wm9712-codec", 96 .init = e800_ac97_init, 97 }, 98 { 99 .name = "AC97 Aux", 100 .stream_name = "AC97 Aux", 101 .cpu_dai_name = "pxa2xx-ac97-aux", 102 .codec_dai_name ="wm9712-aux", 103 .platform_name = "pxa-pcm-audio", 104 .codec_name = "wm9712-codec", 105 }, 106}; 107 108static struct snd_soc_card e800 = { 109 .name = "Toshiba e800", 110 .dai_link = e800_dai, 111 .num_links = ARRAY_SIZE(e800_dai), 112}; 113 114static struct platform_device *e800_snd_device; 115 116static int __init e800_init(void) 117{ 118 int ret; 119 120 if (!machine_is_e800()) 121 return -ENODEV; 122 123 ret = gpio_request(GPIO_E800_HP_AMP_OFF, "Headphone amp"); 124 if (ret) 125 return ret; 126 127 ret = gpio_request(GPIO_E800_SPK_AMP_ON, "Speaker amp"); 128 if (ret) 129 goto free_hp_amp_gpio; 130 131 ret = gpio_direction_output(GPIO_E800_HP_AMP_OFF, 1); 132 if (ret) 133 goto free_spk_amp_gpio; 134 135 ret = gpio_direction_output(GPIO_E800_SPK_AMP_ON, 1); 136 if (ret) 137 goto free_spk_amp_gpio; 138 139 e800_snd_device = platform_device_alloc("soc-audio", -1); 140 if (!e800_snd_device) 141 return -ENOMEM; 142 143 platform_set_drvdata(e800_snd_device, &e800); 144 ret = platform_device_add(e800_snd_device); 145 146 if (!ret) 147 return 0; 148 149/* Fail gracefully */ 150 platform_device_put(e800_snd_device); 151free_spk_amp_gpio: 152 gpio_free(GPIO_E800_SPK_AMP_ON); 153free_hp_amp_gpio: 154 gpio_free(GPIO_E800_HP_AMP_OFF); 155 156 return ret; 157} 158 159static void __exit e800_exit(void) 160{ 161 platform_device_unregister(e800_snd_device); 162 gpio_free(GPIO_E800_SPK_AMP_ON); 163 gpio_free(GPIO_E800_HP_AMP_OFF); 164} 165 166module_init(e800_init); 167module_exit(e800_exit); 168 169/* Module information */ 170MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); 171MODULE_DESCRIPTION("ALSA SoC driver for e800"); 172MODULE_LICENSE("GPL v2"); 173