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-ac97.h"
28 static int e800_spk_amp_event(struct snd_soc_dapm_widget *w,
29 struct snd_kcontrol *kcontrol, int event)
31 if (event & SND_SOC_DAPM_PRE_PMU)
32 gpio_set_value(GPIO_E800_SPK_AMP_ON, 1);
33 else if (event & SND_SOC_DAPM_POST_PMD)
34 gpio_set_value(GPIO_E800_SPK_AMP_ON, 0);
39 static int e800_hp_amp_event(struct snd_soc_dapm_widget *w,
40 struct snd_kcontrol *kcontrol, int event)
42 if (event & SND_SOC_DAPM_PRE_PMU)
43 gpio_set_value(GPIO_E800_HP_AMP_OFF, 0);
44 else if (event & SND_SOC_DAPM_POST_PMD)
45 gpio_set_value(GPIO_E800_HP_AMP_OFF, 1);
50 static const struct snd_soc_dapm_widget e800_dapm_widgets[] = {
51 SND_SOC_DAPM_HP("Headphone Jack", NULL),
52 SND_SOC_DAPM_MIC("Mic (Internal1)", NULL),
53 SND_SOC_DAPM_MIC("Mic (Internal2)", NULL),
54 SND_SOC_DAPM_SPK("Speaker", NULL),
55 SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
56 e800_hp_amp_event, SND_SOC_DAPM_PRE_PMU |
57 SND_SOC_DAPM_POST_PMD),
58 SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
59 e800_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
60 SND_SOC_DAPM_POST_PMD),
63 static const struct snd_soc_dapm_route audio_map[] = {
64 {"Headphone Jack", NULL, "HPOUTL"},
65 {"Headphone Jack", NULL, "HPOUTR"},
66 {"Headphone Jack", NULL, "Headphone Amp"},
68 {"Speaker Amp", NULL, "MONOOUT"},
69 {"Speaker", NULL, "Speaker Amp"},
71 {"MIC1", NULL, "Mic (Internal1)"},
72 {"MIC2", NULL, "Mic (Internal2)"},
75 static int e800_ac97_init(struct snd_soc_pcm_runtime *rtd)
77 struct snd_soc_codec *codec = rtd->codec;
78 struct snd_soc_dapm_context *dapm = &codec->dapm;
80 snd_soc_dapm_new_controls(dapm, e800_dapm_widgets,
81 ARRAY_SIZE(e800_dapm_widgets));
83 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
84 snd_soc_dapm_sync(dapm);
89 static struct snd_soc_dai_link e800_dai[] = {
92 .stream_name = "AC97 HiFi",
93 .cpu_dai_name = "pxa-ac97.0",
94 .codec_dai_name = "wm9712-hifi",
95 .platform_name = "pxa-pcm-audio",
96 .codec_name = "wm9712-codec",
97 .init = e800_ac97_init,
101 .stream_name = "AC97 Aux",
102 .cpu_dai_name = "pxa-ac97.1",
103 .codec_dai_name ="wm9712-aux",
104 .platform_name = "pxa-pcm-audio",
105 .codec_name = "wm9712-codec",
109 static struct snd_soc_card e800 = {
110 .name = "Toshiba e800",
111 .dai_link = e800_dai,
112 .num_links = ARRAY_SIZE(e800_dai),
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);
145 ret = platform_device_add(e800_snd_device);
150 /* Fail gracefully */
151 platform_device_put(e800_snd_device);
153 gpio_free(GPIO_E800_SPK_AMP_ON);
155 gpio_free(GPIO_E800_HP_AMP_OFF);
160 static void __exit e800_exit(void)
162 platform_device_unregister(e800_snd_device);
163 gpio_free(GPIO_E800_SPK_AMP_ON);
164 gpio_free(GPIO_E800_HP_AMP_OFF);
167 module_init(e800_init);
168 module_exit(e800_exit);
170 /* Module information */
171 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
172 MODULE_DESCRIPTION("ALSA SoC driver for e800");
173 MODULE_LICENSE("GPL v2");