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a7e2e735 IM |
1 | /* |
2 | * e750-wm9705.c -- SoC audio for e750 | |
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 | #include <sound/soc-dapm.h> | |
20 | ||
a7e2e735 IM |
21 | #include <mach/audio.h> |
22 | #include <mach/eseries-gpio.h> | |
23 | ||
24 | #include <asm/mach-types.h> | |
25 | ||
26 | #include "../codecs/wm9705.h" | |
27 | #include "pxa2xx-pcm.h" | |
28 | #include "pxa2xx-ac97.h" | |
29 | ||
30 | static int e750_spk_amp_event(struct snd_soc_dapm_widget *w, | |
31 | struct snd_kcontrol *kcontrol, int event) | |
32 | { | |
33 | if (event & SND_SOC_DAPM_PRE_PMU) | |
34 | gpio_set_value(GPIO_E750_SPK_AMP_OFF, 0); | |
35 | else if (event & SND_SOC_DAPM_POST_PMD) | |
36 | gpio_set_value(GPIO_E750_SPK_AMP_OFF, 1); | |
37 | ||
38 | return 0; | |
39 | } | |
40 | ||
41 | static int e750_hp_amp_event(struct snd_soc_dapm_widget *w, | |
42 | struct snd_kcontrol *kcontrol, int event) | |
43 | { | |
44 | if (event & SND_SOC_DAPM_PRE_PMU) | |
45 | gpio_set_value(GPIO_E750_HP_AMP_OFF, 0); | |
46 | else if (event & SND_SOC_DAPM_POST_PMD) | |
47 | gpio_set_value(GPIO_E750_HP_AMP_OFF, 1); | |
48 | ||
49 | return 0; | |
50 | } | |
51 | ||
52 | static const struct snd_soc_dapm_widget e750_dapm_widgets[] = { | |
53 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
54 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
55 | SND_SOC_DAPM_MIC("Mic (Internal)", NULL), | |
56 | SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0, | |
57 | e750_hp_amp_event, SND_SOC_DAPM_PRE_PMU | | |
58 | SND_SOC_DAPM_POST_PMD), | |
59 | SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0, | |
60 | e750_spk_amp_event, SND_SOC_DAPM_PRE_PMU | | |
61 | SND_SOC_DAPM_POST_PMD), | |
62 | }; | |
63 | ||
64 | static const struct snd_soc_dapm_route audio_map[] = { | |
65 | {"Headphone Amp", NULL, "HPOUTL"}, | |
66 | {"Headphone Amp", NULL, "HPOUTR"}, | |
67 | {"Headphone Jack", NULL, "Headphone Amp"}, | |
68 | ||
69 | {"Speaker Amp", NULL, "MONOOUT"}, | |
70 | {"Speaker", NULL, "Speaker Amp"}, | |
71 | ||
72 | {"MIC1", NULL, "Mic (Internal)"}, | |
73 | }; | |
74 | ||
75 | static int e750_ac97_init(struct snd_soc_codec *codec) | |
76 | { | |
77 | snd_soc_dapm_nc_pin(codec, "LOUT"); | |
78 | snd_soc_dapm_nc_pin(codec, "ROUT"); | |
79 | snd_soc_dapm_nc_pin(codec, "PHONE"); | |
80 | snd_soc_dapm_nc_pin(codec, "LINEINL"); | |
81 | snd_soc_dapm_nc_pin(codec, "LINEINR"); | |
82 | snd_soc_dapm_nc_pin(codec, "CDINL"); | |
83 | snd_soc_dapm_nc_pin(codec, "CDINR"); | |
84 | snd_soc_dapm_nc_pin(codec, "PCBEEP"); | |
85 | snd_soc_dapm_nc_pin(codec, "MIC2"); | |
86 | ||
87 | snd_soc_dapm_new_controls(codec, e750_dapm_widgets, | |
88 | ARRAY_SIZE(e750_dapm_widgets)); | |
89 | ||
90 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); | |
91 | ||
92 | snd_soc_dapm_sync(codec); | |
93 | ||
94 | return 0; | |
95 | } | |
96 | ||
97 | static struct snd_soc_dai_link e750_dai[] = { | |
98 | { | |
99 | .name = "AC97", | |
100 | .stream_name = "AC97 HiFi", | |
101 | .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI], | |
102 | .codec_dai = &wm9705_dai[WM9705_DAI_AC97_HIFI], | |
103 | .init = e750_ac97_init, | |
104 | /* use ops to check startup state */ | |
105 | }, | |
106 | { | |
107 | .name = "AC97 Aux", | |
108 | .stream_name = "AC97 Aux", | |
109 | .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX], | |
110 | .codec_dai = &wm9705_dai[WM9705_DAI_AC97_AUX], | |
111 | }, | |
112 | }; | |
113 | ||
114 | static struct snd_soc_card e750 = { | |
115 | .name = "Toshiba e750", | |
116 | .platform = &pxa2xx_soc_platform, | |
117 | .dai_link = e750_dai, | |
118 | .num_links = ARRAY_SIZE(e750_dai), | |
119 | }; | |
120 | ||
121 | static struct snd_soc_device e750_snd_devdata = { | |
122 | .card = &e750, | |
123 | .codec_dev = &soc_codec_dev_wm9705, | |
124 | }; | |
125 | ||
126 | static struct platform_device *e750_snd_device; | |
127 | ||
128 | static int __init e750_init(void) | |
129 | { | |
130 | int ret; | |
131 | ||
132 | if (!machine_is_e750()) | |
133 | return -ENODEV; | |
134 | ||
135 | ret = gpio_request(GPIO_E750_HP_AMP_OFF, "Headphone amp"); | |
136 | if (ret) | |
137 | return ret; | |
138 | ||
139 | ret = gpio_request(GPIO_E750_SPK_AMP_OFF, "Speaker amp"); | |
140 | if (ret) | |
141 | goto free_hp_amp_gpio; | |
142 | ||
143 | ret = gpio_direction_output(GPIO_E750_HP_AMP_OFF, 1); | |
144 | if (ret) | |
145 | goto free_spk_amp_gpio; | |
146 | ||
147 | ret = gpio_direction_output(GPIO_E750_SPK_AMP_OFF, 1); | |
148 | if (ret) | |
149 | goto free_spk_amp_gpio; | |
150 | ||
151 | e750_snd_device = platform_device_alloc("soc-audio", -1); | |
152 | if (!e750_snd_device) { | |
153 | ret = -ENOMEM; | |
154 | goto free_spk_amp_gpio; | |
155 | } | |
156 | ||
157 | platform_set_drvdata(e750_snd_device, &e750_snd_devdata); | |
158 | e750_snd_devdata.dev = &e750_snd_device->dev; | |
159 | ret = platform_device_add(e750_snd_device); | |
160 | ||
161 | if (!ret) | |
162 | return 0; | |
163 | ||
164 | /* Fail gracefully */ | |
165 | platform_device_put(e750_snd_device); | |
166 | free_spk_amp_gpio: | |
167 | gpio_free(GPIO_E750_SPK_AMP_OFF); | |
168 | free_hp_amp_gpio: | |
169 | gpio_free(GPIO_E750_HP_AMP_OFF); | |
170 | ||
171 | return ret; | |
172 | } | |
173 | ||
174 | static void __exit e750_exit(void) | |
175 | { | |
176 | platform_device_unregister(e750_snd_device); | |
177 | gpio_free(GPIO_E750_SPK_AMP_OFF); | |
178 | gpio_free(GPIO_E750_HP_AMP_OFF); | |
179 | } | |
180 | ||
181 | module_init(e750_init); | |
182 | module_exit(e750_exit); | |
183 | ||
184 | /* Module information */ | |
185 | MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); | |
186 | MODULE_DESCRIPTION("ALSA SoC driver for e750"); | |
187 | MODULE_LICENSE("GPL v2"); |