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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 | /* * e740-wm9705.c -- SoC audio for e740 * * Copyright 2007 (c) Ian Molton <spyro@f2s.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; version 2 ONLY. * */ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/gpio.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> #include <mach/audio.h> #include <mach/eseries-gpio.h> #include <asm/mach-types.h> #include "../codecs/wm9705.h" #include "pxa2xx-ac97.h" #define E740_AUDIO_OUT 1 #define E740_AUDIO_IN 2 static int e740_audio_power; static void e740_sync_audio_power(int status) { gpio_set_value(GPIO_E740_WM9705_nAVDD2, !status); gpio_set_value(GPIO_E740_AMP_ON, (status & E740_AUDIO_OUT) ? 1 : 0); gpio_set_value(GPIO_E740_MIC_ON, (status & E740_AUDIO_IN) ? 1 : 0); } static int e740_mic_amp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { if (event & SND_SOC_DAPM_PRE_PMU) e740_audio_power |= E740_AUDIO_IN; else if (event & SND_SOC_DAPM_POST_PMD) e740_audio_power &= ~E740_AUDIO_IN; e740_sync_audio_power(e740_audio_power); return 0; } static int e740_output_amp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { if (event & SND_SOC_DAPM_PRE_PMU) e740_audio_power |= E740_AUDIO_OUT; else if (event & SND_SOC_DAPM_POST_PMD) e740_audio_power &= ~E740_AUDIO_OUT; e740_sync_audio_power(e740_audio_power); return 0; } static const struct snd_soc_dapm_widget e740_dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone Jack", NULL), SND_SOC_DAPM_SPK("Speaker", NULL), SND_SOC_DAPM_MIC("Mic (Internal)", NULL), SND_SOC_DAPM_PGA_E("Output Amp", SND_SOC_NOPM, 0, 0, NULL, 0, e740_output_amp_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_PGA_E("Mic Amp", SND_SOC_NOPM, 0, 0, NULL, 0, e740_mic_amp_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), }; static const struct snd_soc_dapm_route audio_map[] = { {"Output Amp", NULL, "LOUT"}, {"Output Amp", NULL, "ROUT"}, {"Output Amp", NULL, "MONOOUT"}, {"Speaker", NULL, "Output Amp"}, {"Headphone Jack", NULL, "Output Amp"}, {"MIC1", NULL, "Mic Amp"}, {"Mic Amp", NULL, "Mic (Internal)"}, }; static int e740_ac97_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; struct snd_soc_dapm_context *dapm = &codec->dapm; snd_soc_dapm_nc_pin(dapm, "HPOUTL"); snd_soc_dapm_nc_pin(dapm, "HPOUTR"); snd_soc_dapm_nc_pin(dapm, "PHONE"); snd_soc_dapm_nc_pin(dapm, "LINEINL"); snd_soc_dapm_nc_pin(dapm, "LINEINR"); snd_soc_dapm_nc_pin(dapm, "CDINL"); snd_soc_dapm_nc_pin(dapm, "CDINR"); snd_soc_dapm_nc_pin(dapm, "PCBEEP"); snd_soc_dapm_nc_pin(dapm, "MIC2"); snd_soc_dapm_new_controls(dapm, e740_dapm_widgets, ARRAY_SIZE(e740_dapm_widgets)); snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); return 0; } static struct snd_soc_dai_link e740_dai[] = { { .name = "AC97", .stream_name = "AC97 HiFi", .cpu_dai_name = "pxa2xx-ac97", .codec_dai_name = "wm9705-hifi", .platform_name = "pxa-pcm-audio", .codec_name = "wm9705-codec", .init = e740_ac97_init, }, { .name = "AC97 Aux", .stream_name = "AC97 Aux", .cpu_dai_name = "pxa2xx-ac97-aux", .codec_dai_name = "wm9705-aux", .platform_name = "pxa-pcm-audio", .codec_name = "wm9705-codec", }, }; static struct snd_soc_card e740 = { .name = "Toshiba e740", .dai_link = e740_dai, .num_links = ARRAY_SIZE(e740_dai), }; static struct platform_device *e740_snd_device; static int __init e740_init(void) { int ret; if (!machine_is_e740()) return -ENODEV; ret = gpio_request(GPIO_E740_MIC_ON, "Mic amp"); if (ret) return ret; ret = gpio_request(GPIO_E740_AMP_ON, "Output amp"); if (ret) goto free_mic_amp_gpio; ret = gpio_request(GPIO_E740_WM9705_nAVDD2, "Audio power"); if (ret) goto free_op_amp_gpio; /* Disable audio */ ret = gpio_direction_output(GPIO_E740_MIC_ON, 0); if (ret) goto free_apwr_gpio; ret = gpio_direction_output(GPIO_E740_AMP_ON, 0); if (ret) goto free_apwr_gpio; ret = gpio_direction_output(GPIO_E740_WM9705_nAVDD2, 1); if (ret) goto free_apwr_gpio; e740_snd_device = platform_device_alloc("soc-audio", -1); if (!e740_snd_device) { ret = -ENOMEM; goto free_apwr_gpio; } platform_set_drvdata(e740_snd_device, &e740); ret = platform_device_add(e740_snd_device); if (!ret) return 0; /* Fail gracefully */ platform_device_put(e740_snd_device); free_apwr_gpio: gpio_free(GPIO_E740_WM9705_nAVDD2); free_op_amp_gpio: gpio_free(GPIO_E740_AMP_ON); free_mic_amp_gpio: gpio_free(GPIO_E740_MIC_ON); return ret; } static void __exit e740_exit(void) { platform_device_unregister(e740_snd_device); gpio_free(GPIO_E740_WM9705_nAVDD2); gpio_free(GPIO_E740_AMP_ON); gpio_free(GPIO_E740_MIC_ON); } module_init(e740_init); module_exit(e740_exit); /* Module information */ MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); MODULE_DESCRIPTION("ALSA SoC driver for e740"); MODULE_LICENSE("GPL v2"); |