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
74 static struct snd_soc_dai_link e800_dai[] = {
75 {
76 .name = "AC97",
77 .stream_name = "AC97 HiFi",
78 .cpu_dai_name = "pxa2xx-ac97",
79 .codec_dai_name = "wm9712-hifi",
80 .platform_name = "pxa-pcm-audio",
81 .codec_name = "wm9712-codec",
82 },
83 {
84 .name = "AC97 Aux",
85 .stream_name = "AC97 Aux",
86 .cpu_dai_name = "pxa2xx-ac97-aux",
87 .codec_dai_name ="wm9712-aux",
88 .platform_name = "pxa-pcm-audio",
89 .codec_name = "wm9712-codec",
90 },
91 };
92
93 static struct snd_soc_card e800 = {
94 .name = "Toshiba e800",
95 .owner = THIS_MODULE,
96 .dai_link = e800_dai,
97 .num_links = ARRAY_SIZE(e800_dai),
98
99 .dapm_widgets = e800_dapm_widgets,
100 .num_dapm_widgets = ARRAY_SIZE(e800_dapm_widgets),
101 .dapm_routes = audio_map,
102 .num_dapm_routes = ARRAY_SIZE(audio_map),
103 };
104
105 static struct gpio e800_audio_gpios[] = {
106 { GPIO_E800_SPK_AMP_ON, GPIOF_OUT_INIT_HIGH, "Headphone amp" },
107 { GPIO_E800_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
108 };
109
e800_probe(struct platform_device * pdev)110 static int e800_probe(struct platform_device *pdev)
111 {
112 struct snd_soc_card *card = &e800;
113 int ret;
114
115 ret = gpio_request_array(e800_audio_gpios,
116 ARRAY_SIZE(e800_audio_gpios));
117 if (ret)
118 return ret;
119
120 card->dev = &pdev->dev;
121
122 ret = devm_snd_soc_register_card(&pdev->dev, card);
123 if (ret) {
124 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
125 ret);
126 gpio_free_array(e800_audio_gpios, ARRAY_SIZE(e800_audio_gpios));
127 }
128 return ret;
129 }
130
e800_remove(struct platform_device * pdev)131 static int e800_remove(struct platform_device *pdev)
132 {
133 gpio_free_array(e800_audio_gpios, ARRAY_SIZE(e800_audio_gpios));
134 return 0;
135 }
136
137 static struct platform_driver e800_driver = {
138 .driver = {
139 .name = "e800-audio",
140 .pm = &snd_soc_pm_ops,
141 },
142 .probe = e800_probe,
143 .remove = e800_remove,
144 };
145
146 module_platform_driver(e800_driver);
147
148 /* Module information */
149 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
150 MODULE_DESCRIPTION("ALSA SoC driver for e800");
151 MODULE_LICENSE("GPL v2");
152 MODULE_ALIAS("platform:e800-audio");
153