2 * e750-wm9705.c -- SoC audio for e750
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>
20 #include <mach/audio.h>
21 #include <mach/eseries-gpio.h>
23 #include <asm/mach-types.h>
25 #include "../codecs/wm9705.h"
26 #include "pxa2xx-ac97.h"
28 static int e750_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_E750_SPK_AMP_OFF, 0);
33 else if (event & SND_SOC_DAPM_POST_PMD)
34 gpio_set_value(GPIO_E750_SPK_AMP_OFF, 1);
39 static int e750_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_E750_HP_AMP_OFF, 0);
44 else if (event & SND_SOC_DAPM_POST_PMD)
45 gpio_set_value(GPIO_E750_HP_AMP_OFF, 1);
50 static const struct snd_soc_dapm_widget e750_dapm_widgets[] = {
51 SND_SOC_DAPM_HP("Headphone Jack", NULL),
52 SND_SOC_DAPM_SPK("Speaker", NULL),
53 SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
54 SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
55 e750_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 e750_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
59 SND_SOC_DAPM_POST_PMD),
62 static const struct snd_soc_dapm_route audio_map[] = {
63 {"Headphone Amp", NULL, "HPOUTL"},
64 {"Headphone Amp", NULL, "HPOUTR"},
65 {"Headphone Jack", NULL, "Headphone Amp"},
67 {"Speaker Amp", NULL, "MONOOUT"},
68 {"Speaker", NULL, "Speaker Amp"},
70 {"MIC1", NULL, "Mic (Internal)"},
73 static int e750_ac97_init(struct snd_soc_pcm_runtime *rtd)
75 struct snd_soc_codec *codec = rtd->codec;
76 struct snd_soc_dapm_context *dapm = &codec->dapm;
78 snd_soc_dapm_nc_pin(dapm, "LOUT");
79 snd_soc_dapm_nc_pin(dapm, "ROUT");
80 snd_soc_dapm_nc_pin(dapm, "PHONE");
81 snd_soc_dapm_nc_pin(dapm, "LINEINL");
82 snd_soc_dapm_nc_pin(dapm, "LINEINR");
83 snd_soc_dapm_nc_pin(dapm, "CDINL");
84 snd_soc_dapm_nc_pin(dapm, "CDINR");
85 snd_soc_dapm_nc_pin(dapm, "PCBEEP");
86 snd_soc_dapm_nc_pin(dapm, "MIC2");
88 snd_soc_dapm_new_controls(dapm, e750_dapm_widgets,
89 ARRAY_SIZE(e750_dapm_widgets));
91 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
96 static struct snd_soc_dai_link e750_dai[] = {
99 .stream_name = "AC97 HiFi",
100 .cpu_dai_name = "pxa2xx-ac97",
101 .codec_dai_name = "wm9705-hifi",
102 .platform_name = "pxa-pcm-audio",
103 .codec_name = "wm9705-codec",
104 .init = e750_ac97_init,
105 /* use ops to check startup state */
109 .stream_name = "AC97 Aux",
110 .cpu_dai_name = "pxa2xx-ac97-aux",
111 .codec_dai_name ="wm9705-aux",
112 .platform_name = "pxa-pcm-audio",
113 .codec_name = "wm9705-codec",
117 static struct snd_soc_card e750 = {
118 .name = "Toshiba e750",
119 .dai_link = e750_dai,
120 .num_links = ARRAY_SIZE(e750_dai),
123 static struct platform_device *e750_snd_device;
125 static int __init e750_init(void)
129 if (!machine_is_e750())
132 ret = gpio_request_one(GPIO_E750_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH,
137 ret = gpio_request_one(GPIO_E750_SPK_AMP_OFF, GPIOF_OUT_INIT_HIGH,
140 goto free_hp_amp_gpio;
142 e750_snd_device = platform_device_alloc("soc-audio", -1);
143 if (!e750_snd_device) {
145 goto free_spk_amp_gpio;
148 platform_set_drvdata(e750_snd_device, &e750);
149 ret = platform_device_add(e750_snd_device);
154 /* Fail gracefully */
155 platform_device_put(e750_snd_device);
157 gpio_free(GPIO_E750_SPK_AMP_OFF);
159 gpio_free(GPIO_E750_HP_AMP_OFF);
164 static void __exit e750_exit(void)
166 platform_device_unregister(e750_snd_device);
167 gpio_free(GPIO_E750_SPK_AMP_OFF);
168 gpio_free(GPIO_E750_HP_AMP_OFF);
171 module_init(e750_init);
172 module_exit(e750_exit);
174 /* Module information */
175 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
176 MODULE_DESCRIPTION("ALSA SoC driver for e750");
177 MODULE_LICENSE("GPL v2");