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 snd_soc_dapm_sync(dapm);
84
85 return 0;
86 }
87
88 static struct snd_soc_dai_link e800_dai[] = {
89 {
90 .name = "AC97",
91 .stream_name = "AC97 HiFi",
92 .cpu_dai_name = "pxa2xx-ac97",
93 .codec_dai_name = "wm9712-hifi",
94 .platform_name = "pxa-pcm-audio",
95 .codec_name = "wm9712-codec",
96 .init = e800_ac97_init,
97 },
98 {
99 .name = "AC97 Aux",
100 .stream_name = "AC97 Aux",
101 .cpu_dai_name = "pxa2xx-ac97-aux",
102 .codec_dai_name ="wm9712-aux",
103 .platform_name = "pxa-pcm-audio",
104 .codec_name = "wm9712-codec",
105 },
106 };
107
108 static struct snd_soc_card e800 = {
109 .name = "Toshiba e800",
110 .dai_link = e800_dai,
111 .num_links = ARRAY_SIZE(e800_dai),
112 };
113
114 static struct platform_device *e800_snd_device;
115
e800_init(void)116 static int __init e800_init(void)
117 {
118 int ret;
119
120 if (!machine_is_e800())
121 return -ENODEV;
122
123 ret = gpio_request(GPIO_E800_HP_AMP_OFF, "Headphone amp");
124 if (ret)
125 return ret;
126
127 ret = gpio_request(GPIO_E800_SPK_AMP_ON, "Speaker amp");
128 if (ret)
129 goto free_hp_amp_gpio;
130
131 ret = gpio_direction_output(GPIO_E800_HP_AMP_OFF, 1);
132 if (ret)
133 goto free_spk_amp_gpio;
134
135 ret = gpio_direction_output(GPIO_E800_SPK_AMP_ON, 1);
136 if (ret)
137 goto free_spk_amp_gpio;
138
139 e800_snd_device = platform_device_alloc("soc-audio", -1);
140 if (!e800_snd_device)
141 return -ENOMEM;
142
143 platform_set_drvdata(e800_snd_device, &e800);
144 ret = platform_device_add(e800_snd_device);
145
146 if (!ret)
147 return 0;
148
149 /* Fail gracefully */
150 platform_device_put(e800_snd_device);
151 free_spk_amp_gpio:
152 gpio_free(GPIO_E800_SPK_AMP_ON);
153 free_hp_amp_gpio:
154 gpio_free(GPIO_E800_HP_AMP_OFF);
155
156 return ret;
157 }
158
e800_exit(void)159 static void __exit e800_exit(void)
160 {
161 platform_device_unregister(e800_snd_device);
162 gpio_free(GPIO_E800_SPK_AMP_ON);
163 gpio_free(GPIO_E800_HP_AMP_OFF);
164 }
165
166 module_init(e800_init);
167 module_exit(e800_exit);
168
169 /* Module information */
170 MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
171 MODULE_DESCRIPTION("ALSA SoC driver for e800");
172 MODULE_LICENSE("GPL v2");
173