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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 | ||
28796eaf IM |
25 | #define E740_AUDIO_OUT 1 |
26 | #define E740_AUDIO_IN 2 | |
27 | ||
28 | static int e740_audio_power; | |
29 | ||
30 | static void e740_sync_audio_power(int status) | |
31 | { | |
32 | gpio_set_value(GPIO_E740_WM9705_nAVDD2, !status); | |
33 | gpio_set_value(GPIO_E740_AMP_ON, (status & E740_AUDIO_OUT) ? 1 : 0); | |
34 | gpio_set_value(GPIO_E740_MIC_ON, (status & E740_AUDIO_IN) ? 1 : 0); | |
35 | } | |
36 | ||
37 | static int e740_mic_amp_event(struct snd_soc_dapm_widget *w, | |
38 | struct snd_kcontrol *kcontrol, int event) | |
39 | { | |
40 | if (event & SND_SOC_DAPM_PRE_PMU) | |
41 | e740_audio_power |= E740_AUDIO_IN; | |
42 | else if (event & SND_SOC_DAPM_POST_PMD) | |
43 | e740_audio_power &= ~E740_AUDIO_IN; | |
44 | ||
45 | e740_sync_audio_power(e740_audio_power); | |
46 | ||
47 | return 0; | |
48 | } | |
49 | ||
50 | static int e740_output_amp_event(struct snd_soc_dapm_widget *w, | |
51 | struct snd_kcontrol *kcontrol, int event) | |
52 | { | |
53 | if (event & SND_SOC_DAPM_PRE_PMU) | |
54 | e740_audio_power |= E740_AUDIO_OUT; | |
55 | else if (event & SND_SOC_DAPM_POST_PMD) | |
56 | e740_audio_power &= ~E740_AUDIO_OUT; | |
57 | ||
58 | e740_sync_audio_power(e740_audio_power); | |
59 | ||
60 | return 0; | |
61 | } | |
62 | ||
63 | static const struct snd_soc_dapm_widget e740_dapm_widgets[] = { | |
64 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
65 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
66 | SND_SOC_DAPM_MIC("Mic (Internal)", NULL), | |
67 | SND_SOC_DAPM_PGA_E("Output Amp", SND_SOC_NOPM, 0, 0, NULL, 0, | |
68 | e740_output_amp_event, SND_SOC_DAPM_PRE_PMU | | |
69 | SND_SOC_DAPM_POST_PMD), | |
70 | SND_SOC_DAPM_PGA_E("Mic Amp", SND_SOC_NOPM, 0, 0, NULL, 0, | |
71 | e740_mic_amp_event, SND_SOC_DAPM_PRE_PMU | | |
72 | SND_SOC_DAPM_POST_PMD), | |
73 | }; | |
74 | ||
75 | static const struct snd_soc_dapm_route audio_map[] = { | |
76 | {"Output Amp", NULL, "LOUT"}, | |
77 | {"Output Amp", NULL, "ROUT"}, | |
78 | {"Output Amp", NULL, "MONOOUT"}, | |
79 | ||
80 | {"Speaker", NULL, "Output Amp"}, | |
81 | {"Headphone Jack", NULL, "Output Amp"}, | |
82 | ||
83 | {"MIC1", NULL, "Mic Amp"}, | |
84 | {"Mic Amp", NULL, "Mic (Internal)"}, | |
85 | }; | |
86 | ||
28796eaf IM |
87 | static struct snd_soc_dai_link e740_dai[] = { |
88 | { | |
89 | .name = "AC97", | |
90 | .stream_name = "AC97 HiFi", | |
4bfc4e25 | 91 | .cpu_dai_name = "pxa2xx-ac97", |
f0fba2ad LG |
92 | .codec_dai_name = "wm9705-hifi", |
93 | .platform_name = "pxa-pcm-audio", | |
94 | .codec_name = "wm9705-codec", | |
28796eaf IM |
95 | }, |
96 | { | |
97 | .name = "AC97 Aux", | |
98 | .stream_name = "AC97 Aux", | |
4bfc4e25 | 99 | .cpu_dai_name = "pxa2xx-ac97-aux", |
f0fba2ad LG |
100 | .codec_dai_name = "wm9705-aux", |
101 | .platform_name = "pxa-pcm-audio", | |
102 | .codec_name = "wm9705-codec", | |
28796eaf IM |
103 | }, |
104 | }; | |
105 | ||
106 | static struct snd_soc_card e740 = { | |
107 | .name = "Toshiba e740", | |
561c6a17 | 108 | .owner = THIS_MODULE, |
28796eaf IM |
109 | .dai_link = e740_dai, |
110 | .num_links = ARRAY_SIZE(e740_dai), | |
23d8f225 LPC |
111 | |
112 | .dapm_widgets = e740_dapm_widgets, | |
113 | .num_dapm_widgets = ARRAY_SIZE(e740_dapm_widgets), | |
114 | .dapm_routes = audio_map, | |
115 | .num_dapm_routes = ARRAY_SIZE(audio_map), | |
dff6c964 | 116 | .fully_routed = true, |
28796eaf IM |
117 | }; |
118 | ||
62133829 AL |
119 | static struct gpio e740_audio_gpios[] = { |
120 | { GPIO_E740_MIC_ON, GPIOF_OUT_INIT_LOW, "Mic amp" }, | |
121 | { GPIO_E740_AMP_ON, GPIOF_OUT_INIT_LOW, "Output amp" }, | |
122 | { GPIO_E740_WM9705_nAVDD2, GPIOF_OUT_INIT_HIGH, "Audio power" }, | |
123 | }; | |
28796eaf | 124 | |
570f6fe1 | 125 | static int e740_probe(struct platform_device *pdev) |
28796eaf | 126 | { |
62133829 | 127 | struct snd_soc_card *card = &e740; |
28796eaf IM |
128 | int ret; |
129 | ||
62133829 AL |
130 | ret = gpio_request_array(e740_audio_gpios, |
131 | ARRAY_SIZE(e740_audio_gpios)); | |
28796eaf IM |
132 | if (ret) |
133 | return ret; | |
134 | ||
62133829 | 135 | card->dev = &pdev->dev; |
28796eaf | 136 | |
2fd7076a | 137 | ret = devm_snd_soc_register_card(&pdev->dev, card); |
62133829 AL |
138 | if (ret) { |
139 | dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", | |
140 | ret); | |
141 | gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios)); | |
28796eaf | 142 | } |
28796eaf IM |
143 | return ret; |
144 | } | |
145 | ||
570f6fe1 | 146 | static int e740_remove(struct platform_device *pdev) |
28796eaf | 147 | { |
62133829 | 148 | gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios)); |
62133829 | 149 | return 0; |
28796eaf IM |
150 | } |
151 | ||
62133829 AL |
152 | static struct platform_driver e740_driver = { |
153 | .driver = { | |
154 | .name = "e740-audio", | |
7db1698f | 155 | .pm = &snd_soc_pm_ops, |
62133829 AL |
156 | }, |
157 | .probe = e740_probe, | |
570f6fe1 | 158 | .remove = e740_remove, |
62133829 AL |
159 | }; |
160 | ||
161 | module_platform_driver(e740_driver); | |
28796eaf IM |
162 | |
163 | /* Module information */ | |
164 | MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); | |
165 | MODULE_DESCRIPTION("ALSA SoC driver for e740"); | |
166 | MODULE_LICENSE("GPL v2"); | |
62133829 | 167 | MODULE_ALIAS("platform:e740-audio"); |