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28796eaf IM |
1 | /* |
2 | * e740-wm9705.c -- SoC audio for e740 | |
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> | |
28796eaf | 19 | |
28796eaf IM |
20 | #include <mach/audio.h> |
21 | #include <mach/eseries-gpio.h> | |
22 | ||
23 | #include <asm/mach-types.h> | |
24 | ||
25 | #include "../codecs/wm9705.h" | |
28796eaf IM |
26 | #include "pxa2xx-ac97.h" |
27 | ||
28 | ||
29 | #define E740_AUDIO_OUT 1 | |
30 | #define E740_AUDIO_IN 2 | |
31 | ||
32 | static int e740_audio_power; | |
33 | ||
34 | static void e740_sync_audio_power(int status) | |
35 | { | |
36 | gpio_set_value(GPIO_E740_WM9705_nAVDD2, !status); | |
37 | gpio_set_value(GPIO_E740_AMP_ON, (status & E740_AUDIO_OUT) ? 1 : 0); | |
38 | gpio_set_value(GPIO_E740_MIC_ON, (status & E740_AUDIO_IN) ? 1 : 0); | |
39 | } | |
40 | ||
41 | static int e740_mic_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 | e740_audio_power |= E740_AUDIO_IN; | |
46 | else if (event & SND_SOC_DAPM_POST_PMD) | |
47 | e740_audio_power &= ~E740_AUDIO_IN; | |
48 | ||
49 | e740_sync_audio_power(e740_audio_power); | |
50 | ||
51 | return 0; | |
52 | } | |
53 | ||
54 | static int e740_output_amp_event(struct snd_soc_dapm_widget *w, | |
55 | struct snd_kcontrol *kcontrol, int event) | |
56 | { | |
57 | if (event & SND_SOC_DAPM_PRE_PMU) | |
58 | e740_audio_power |= E740_AUDIO_OUT; | |
59 | else if (event & SND_SOC_DAPM_POST_PMD) | |
60 | e740_audio_power &= ~E740_AUDIO_OUT; | |
61 | ||
62 | e740_sync_audio_power(e740_audio_power); | |
63 | ||
64 | return 0; | |
65 | } | |
66 | ||
67 | static const struct snd_soc_dapm_widget e740_dapm_widgets[] = { | |
68 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
69 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
70 | SND_SOC_DAPM_MIC("Mic (Internal)", NULL), | |
71 | SND_SOC_DAPM_PGA_E("Output Amp", SND_SOC_NOPM, 0, 0, NULL, 0, | |
72 | e740_output_amp_event, SND_SOC_DAPM_PRE_PMU | | |
73 | SND_SOC_DAPM_POST_PMD), | |
74 | SND_SOC_DAPM_PGA_E("Mic Amp", SND_SOC_NOPM, 0, 0, NULL, 0, | |
75 | e740_mic_amp_event, SND_SOC_DAPM_PRE_PMU | | |
76 | SND_SOC_DAPM_POST_PMD), | |
77 | }; | |
78 | ||
79 | static const struct snd_soc_dapm_route audio_map[] = { | |
80 | {"Output Amp", NULL, "LOUT"}, | |
81 | {"Output Amp", NULL, "ROUT"}, | |
82 | {"Output Amp", NULL, "MONOOUT"}, | |
83 | ||
84 | {"Speaker", NULL, "Output Amp"}, | |
85 | {"Headphone Jack", NULL, "Output Amp"}, | |
86 | ||
87 | {"MIC1", NULL, "Mic Amp"}, | |
88 | {"Mic Amp", NULL, "Mic (Internal)"}, | |
89 | }; | |
90 | ||
f0fba2ad | 91 | static int e740_ac97_init(struct snd_soc_pcm_runtime *rtd) |
28796eaf | 92 | { |
f0fba2ad | 93 | struct snd_soc_codec *codec = rtd->codec; |
ce6120cc LG |
94 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
95 | ||
96 | snd_soc_dapm_nc_pin(dapm, "HPOUTL"); | |
97 | snd_soc_dapm_nc_pin(dapm, "HPOUTR"); | |
98 | snd_soc_dapm_nc_pin(dapm, "PHONE"); | |
99 | snd_soc_dapm_nc_pin(dapm, "LINEINL"); | |
100 | snd_soc_dapm_nc_pin(dapm, "LINEINR"); | |
101 | snd_soc_dapm_nc_pin(dapm, "CDINL"); | |
102 | snd_soc_dapm_nc_pin(dapm, "CDINR"); | |
103 | snd_soc_dapm_nc_pin(dapm, "PCBEEP"); | |
104 | snd_soc_dapm_nc_pin(dapm, "MIC2"); | |
105 | ||
106 | snd_soc_dapm_new_controls(dapm, e740_dapm_widgets, | |
28796eaf IM |
107 | ARRAY_SIZE(e740_dapm_widgets)); |
108 | ||
ce6120cc | 109 | snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); |
28796eaf | 110 | |
28796eaf IM |
111 | return 0; |
112 | } | |
113 | ||
114 | static struct snd_soc_dai_link e740_dai[] = { | |
115 | { | |
116 | .name = "AC97", | |
117 | .stream_name = "AC97 HiFi", | |
4bfc4e25 | 118 | .cpu_dai_name = "pxa2xx-ac97", |
f0fba2ad LG |
119 | .codec_dai_name = "wm9705-hifi", |
120 | .platform_name = "pxa-pcm-audio", | |
121 | .codec_name = "wm9705-codec", | |
28796eaf IM |
122 | .init = e740_ac97_init, |
123 | }, | |
124 | { | |
125 | .name = "AC97 Aux", | |
126 | .stream_name = "AC97 Aux", | |
4bfc4e25 | 127 | .cpu_dai_name = "pxa2xx-ac97-aux", |
f0fba2ad LG |
128 | .codec_dai_name = "wm9705-aux", |
129 | .platform_name = "pxa-pcm-audio", | |
130 | .codec_name = "wm9705-codec", | |
28796eaf IM |
131 | }, |
132 | }; | |
133 | ||
134 | static struct snd_soc_card e740 = { | |
135 | .name = "Toshiba e740", | |
561c6a17 | 136 | .owner = THIS_MODULE, |
28796eaf IM |
137 | .dai_link = e740_dai, |
138 | .num_links = ARRAY_SIZE(e740_dai), | |
139 | }; | |
140 | ||
62133829 AL |
141 | static struct gpio e740_audio_gpios[] = { |
142 | { GPIO_E740_MIC_ON, GPIOF_OUT_INIT_LOW, "Mic amp" }, | |
143 | { GPIO_E740_AMP_ON, GPIOF_OUT_INIT_LOW, "Output amp" }, | |
144 | { GPIO_E740_WM9705_nAVDD2, GPIOF_OUT_INIT_HIGH, "Audio power" }, | |
145 | }; | |
28796eaf | 146 | |
62133829 | 147 | static int __devinit e740_probe(struct platform_device *pdev) |
28796eaf | 148 | { |
62133829 | 149 | struct snd_soc_card *card = &e740; |
28796eaf IM |
150 | int ret; |
151 | ||
62133829 AL |
152 | ret = gpio_request_array(e740_audio_gpios, |
153 | ARRAY_SIZE(e740_audio_gpios)); | |
28796eaf IM |
154 | if (ret) |
155 | return ret; | |
156 | ||
62133829 | 157 | card->dev = &pdev->dev; |
28796eaf | 158 | |
62133829 AL |
159 | ret = snd_soc_register_card(card); |
160 | if (ret) { | |
161 | dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", | |
162 | ret); | |
163 | gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios)); | |
28796eaf | 164 | } |
28796eaf IM |
165 | return ret; |
166 | } | |
167 | ||
62133829 | 168 | static int __devexit e740_remove(struct platform_device *pdev) |
28796eaf | 169 | { |
62133829 AL |
170 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
171 | ||
172 | gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios)); | |
173 | snd_soc_unregister_card(card); | |
174 | return 0; | |
28796eaf IM |
175 | } |
176 | ||
62133829 AL |
177 | static struct platform_driver e740_driver = { |
178 | .driver = { | |
179 | .name = "e740-audio", | |
180 | .owner = THIS_MODULE, | |
181 | }, | |
182 | .probe = e740_probe, | |
183 | .remove = __devexit_p(e740_remove), | |
184 | }; | |
185 | ||
186 | module_platform_driver(e740_driver); | |
28796eaf IM |
187 | |
188 | /* Module information */ | |
189 | MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); | |
190 | MODULE_DESCRIPTION("ALSA SoC driver for e740"); | |
191 | MODULE_LICENSE("GPL v2"); | |
62133829 | 192 | MODULE_ALIAS("platform:e740-audio"); |