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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 | // SPDX-License-Identifier: GPL-2.0-only /* * e740-wm9705.c -- SoC audio for e740 * * Copyright 2007 (c) Ian Molton <spyro@f2s.com> */ #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> #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 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", }, { .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", .owner = THIS_MODULE, .dai_link = e740_dai, .num_links = ARRAY_SIZE(e740_dai), .dapm_widgets = e740_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(e740_dapm_widgets), .dapm_routes = audio_map, .num_dapm_routes = ARRAY_SIZE(audio_map), .fully_routed = true, }; static struct gpio e740_audio_gpios[] = { { GPIO_E740_MIC_ON, GPIOF_OUT_INIT_LOW, "Mic amp" }, { GPIO_E740_AMP_ON, GPIOF_OUT_INIT_LOW, "Output amp" }, { GPIO_E740_WM9705_nAVDD2, GPIOF_OUT_INIT_HIGH, "Audio power" }, }; static int e740_probe(struct platform_device *pdev) { struct snd_soc_card *card = &e740; int ret; ret = gpio_request_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios)); if (ret) return ret; card->dev = &pdev->dev; ret = devm_snd_soc_register_card(&pdev->dev, card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios)); } return ret; } static int e740_remove(struct platform_device *pdev) { gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios)); return 0; } static struct platform_driver e740_driver = { .driver = { .name = "e740-audio", .pm = &snd_soc_pm_ops, }, .probe = e740_probe, .remove = e740_remove, }; module_platform_driver(e740_driver); /* Module information */ MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); MODULE_DESCRIPTION("ALSA SoC driver for e740"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:e740-audio"); |