1 /*
2 * e800-wm9712.c -- SoC audio for e800
3 *
4 * Copyright 2007 (c) Ian Molton <spyro@f2s.com>
5 *
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.
9 *
10 */
11
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/gpio.h>
15
16 #include <sound/core.h>
17 #include <sound/pcm.h>
18 #include <sound/soc.h>
19
20 #include <asm/mach-types.h>
21 #include <mach/audio.h>
22 #include <mach/eseries-gpio.h>
23
24 #include "../codecs/wm9712.h"
25 #include "pxa2xx-ac97.h"
26
e800_spk_amp_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)27 static int e800_spk_amp_event(struct snd_soc_dapm_widget *w,
28 struct snd_kcontrol *kcontrol, int event)
29 {
30 if (event & SND_SOC_DAPM_PRE_PMU)
31 gpio_set_value(GPIO_E800_SPK_AMP_ON, 1);
32 else if (event & SND_SOC_DAPM_POST_PMD)
33 gpio_set_value(GPIO_E800_SPK_AMP_ON, 0);
34
35 return 0;
36 }
37
e800_hp_amp_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)38 static int e800_hp_amp_event(struct snd_soc_dapm_widget *w,
39 struct snd_kcontrol *kcontrol, int event)
40 {
41 if (event & SND_SOC_DAPM_PRE_PMU)
42 gpio_set_value(GPIO_E800_HP_AMP_OFF, 0);
43 else if (event & SND_SOC_DAPM_POST_PMD)
44 gpio_set_value(GPIO_E800_HP_AMP_OFF, 1);
45
46 return 0;
47 }
48
49 static const struct snd_soc_dapm_widget e800_dapm_widgets[] = {
50 SND_SOC_DAPM_HP("Headphone Jack", NULL),
51 SND_SOC_DAPM_MIC("Mic (Internal1)", NULL),
52 SND_SOC_DAPM_MIC("Mic (Internal2)", NULL),
53 SND_SOC_DAPM_SPK("Speaker", NULL),
54 SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
55 e800_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 e800_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
59 SND_SOC_DAPM_POST_PMD),
60 };
61
62 static const struct snd_soc_dapm_route audio_map[] = {
63 {"Headphone Jack", NULL, "HPOUTL"},
64 {"Headphone Jack", NULL, "HPOUTR"},
65 {"Headphone Jack", NULL, "Headphone Amp"},
66
67 {"Speaker Amp", NULL, "MONOOUT"},
68 {"Speaker", NULL, "Speaker Amp"},
69
70 {"MIC1", NULL, "Mic (Internal1)"},
71 {"MIC2", NULL, "Mic (Internal2)"},
72 };
73
e800_ac97_init(struct snd_soc_pcm_runtime * rtd)74 static int e800_ac97_init(struct snd_soc_pcm_runtime *rtd)
75 {
76 struct snd_soc_codec *codec = rtd->codec;
77 struct snd_soc_dapm_context *dapm = &codec->dapm;
78
79 snd_soc_dapm_new_controls(dapm, e800_dapm_widgets,
80 ARRAY_SIZE(e800_dapm_widgets));
81
82 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
83
84 return 0;
85 }
86
87 static struct snd_soc_dai_link e800_dai[] = {
88 {
89 .name = "AC97",
90 .stream_name = "AC97 HiFi",
91 .cpu_dai_name = "pxa2xx-ac97",
92 .codec_dai_name = "wm9712-hifi",
93 .platform_name = "pxa-pcm-audio",
94 .codec_name = "wm9712-codec",
95 .init = e800_ac97_init,
96 },
97 {
98 .name = "AC97 Aux",
99 .stream_name = "AC97 Aux",
100 .cpu_dai_name = "pxa2xx-ac97-aux",
101 .codec_dai_name ="wm9712-aux",
102 .platform_name = "pxa-pcm-audio",
103 .codec_name = "wm9712-codec",
104 },
105 };
106
107 static struct snd_soc_card e800 = {
108 .name = "Toshiba e800",
109 .owner = THIS_MODULE,
110 .dai_link = e800_dai,
111 .num_links = ARRAY_SIZE(e800_dai),
112 };
113
114 static struct gpio e800_audio_gpios[] = {
115 { GPIO_E800_SPK_AMP_ON, GPIOF_OUT_INIT_HIGH, "Headphone amp" },
116 { GPIO_E800_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
117 };
118
e800_probe(struct platform_device * pdev)119 static int e800_probe(struct platform_device *pdev)
120 {
121 struct snd_soc_card *card = &e800;
122 int ret;
123
124 ret = gpio_request_array(e800_audio_gpios,
125 ARRAY_SIZE(e800_audio_gpios));
126 if (ret)
127 return ret;
128
129 card->dev = &pdev->dev;
130
131 ret = snd_soc_register_card(card);
132 if (ret) {
133 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
134 ret);
135 gpio_free_array(e800_audio_gpios, ARRAY_SIZE(e800_audio_gpios));
136 }
137 return ret;
138 }
139
e800_remove(struct platform_device * pdev)140 static int e800_remove(struct platform_device *pdev)
141 {
142 struct snd_soc_card *card = platform_get_drvdata(pdev);
143
144 gpio_free_array(e800_audio_gpios, ARRAY_SIZE(e800_audio_gpios));
145 snd_soc_unregister_card(card);
146 return 0;
147 }
148
149 static struct platform_driver e800_driver = {
150 .driver = {
151 .name = "e800-audio",
152 .owner = THIS_MODULE,
153 },
154 .probe = e800_probe,
155 .remove = e800_remove,
156 };
157
158 module_platform_driver(e800_driver);
159
160 /* Module information */
161 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
162 MODULE_DESCRIPTION("ALSA SoC driver for e800");
163 MODULE_LICENSE("GPL v2");
164 MODULE_ALIAS("platform:e800-audio");
165