2 * e800-wm9712.c -- SoC audio for e800
4 * Copyright 2007 (c) Ian Molton <spyro@f2s.com>
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.
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/gpio.h>
16 #include <sound/core.h>
17 #include <sound/pcm.h>
18 #include <sound/soc.h>
19 #include <sound/soc-dapm.h>
21 #include <asm/mach-types.h>
22 #include <mach/audio.h>
23 #include <mach/eseries-gpio.h>
25 #include "../codecs/wm9712.h"
26 #include "pxa2xx-pcm.h"
27 #include "pxa2xx-ac97.h"
29 static int e800_spk_amp_event(struct snd_soc_dapm_widget *w,
30 struct snd_kcontrol *kcontrol, int event)
32 if (event & SND_SOC_DAPM_PRE_PMU)
33 gpio_set_value(GPIO_E800_SPK_AMP_ON, 1);
34 else if (event & SND_SOC_DAPM_POST_PMD)
35 gpio_set_value(GPIO_E800_SPK_AMP_ON, 0);
40 static int e800_hp_amp_event(struct snd_soc_dapm_widget *w,
41 struct snd_kcontrol *kcontrol, int event)
43 if (event & SND_SOC_DAPM_PRE_PMU)
44 gpio_set_value(GPIO_E800_HP_AMP_OFF, 0);
45 else if (event & SND_SOC_DAPM_POST_PMD)
46 gpio_set_value(GPIO_E800_HP_AMP_OFF, 1);
51 static const struct snd_soc_dapm_widget e800_dapm_widgets[] = {
52 SND_SOC_DAPM_HP("Headphone Jack", NULL),
53 SND_SOC_DAPM_MIC("Mic (Internal1)", NULL),
54 SND_SOC_DAPM_MIC("Mic (Internal2)", NULL),
55 SND_SOC_DAPM_SPK("Speaker", NULL),
56 SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
57 e800_hp_amp_event, SND_SOC_DAPM_PRE_PMU |
58 SND_SOC_DAPM_POST_PMD),
59 SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
60 e800_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
61 SND_SOC_DAPM_POST_PMD),
64 static const struct snd_soc_dapm_route audio_map[] = {
65 {"Headphone Jack", NULL, "HPOUTL"},
66 {"Headphone Jack", NULL, "HPOUTR"},
67 {"Headphone Jack", NULL, "Headphone Amp"},
69 {"Speaker Amp", NULL, "MONOOUT"},
70 {"Speaker", NULL, "Speaker Amp"},
72 {"MIC1", NULL, "Mic (Internal1)"},
73 {"MIC2", NULL, "Mic (Internal2)"},
76 static int e800_ac97_init(struct snd_soc_codec *codec)
78 snd_soc_dapm_new_controls(codec, e800_dapm_widgets,
79 ARRAY_SIZE(e800_dapm_widgets));
81 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
82 snd_soc_dapm_sync(codec);
87 static struct snd_soc_dai_link e800_dai[] = {
90 .stream_name = "AC97 HiFi",
91 .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
92 .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI],
93 .init = e800_ac97_init,
97 .stream_name = "AC97 Aux",
98 .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
99 .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX],
103 static struct snd_soc_card e800 = {
104 .name = "Toshiba e800",
105 .platform = &pxa2xx_soc_platform,
106 .dai_link = e800_dai,
107 .num_links = ARRAY_SIZE(e800_dai),
110 static struct snd_soc_device e800_snd_devdata = {
112 .codec_dev = &soc_codec_dev_wm9712,
115 static struct platform_device *e800_snd_device;
117 static int __init e800_init(void)
121 if (!machine_is_e800())
124 ret = gpio_request(GPIO_E800_HP_AMP_OFF, "Headphone amp");
128 ret = gpio_request(GPIO_E800_SPK_AMP_ON, "Speaker amp");
130 goto free_hp_amp_gpio;
132 ret = gpio_direction_output(GPIO_E800_HP_AMP_OFF, 1);
134 goto free_spk_amp_gpio;
136 ret = gpio_direction_output(GPIO_E800_SPK_AMP_ON, 1);
138 goto free_spk_amp_gpio;
140 e800_snd_device = platform_device_alloc("soc-audio", -1);
141 if (!e800_snd_device)
144 platform_set_drvdata(e800_snd_device, &e800_snd_devdata);
145 e800_snd_devdata.dev = &e800_snd_device->dev;
146 ret = platform_device_add(e800_snd_device);
151 /* Fail gracefully */
152 platform_device_put(e800_snd_device);
154 gpio_free(GPIO_E800_SPK_AMP_ON);
156 gpio_free(GPIO_E800_HP_AMP_OFF);
161 static void __exit e800_exit(void)
163 platform_device_unregister(e800_snd_device);
164 gpio_free(GPIO_E800_SPK_AMP_ON);
165 gpio_free(GPIO_E800_HP_AMP_OFF);
168 module_init(e800_init);
169 module_exit(e800_exit);
171 /* Module information */
172 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
173 MODULE_DESCRIPTION("ALSA SoC driver for e800");
174 MODULE_LICENSE("GPL v2");