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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 | ||
28796eaf IM |
91 | static struct snd_soc_dai_link e740_dai[] = { |
92 | { | |
93 | .name = "AC97", | |
94 | .stream_name = "AC97 HiFi", | |
4bfc4e25 | 95 | .cpu_dai_name = "pxa2xx-ac97", |
f0fba2ad LG |
96 | .codec_dai_name = "wm9705-hifi", |
97 | .platform_name = "pxa-pcm-audio", | |
98 | .codec_name = "wm9705-codec", | |
28796eaf IM |
99 | }, |
100 | { | |
101 | .name = "AC97 Aux", | |
102 | .stream_name = "AC97 Aux", | |
4bfc4e25 | 103 | .cpu_dai_name = "pxa2xx-ac97-aux", |
f0fba2ad LG |
104 | .codec_dai_name = "wm9705-aux", |
105 | .platform_name = "pxa-pcm-audio", | |
106 | .codec_name = "wm9705-codec", | |
28796eaf IM |
107 | }, |
108 | }; | |
109 | ||
110 | static struct snd_soc_card e740 = { | |
111 | .name = "Toshiba e740", | |
561c6a17 | 112 | .owner = THIS_MODULE, |
28796eaf IM |
113 | .dai_link = e740_dai, |
114 | .num_links = ARRAY_SIZE(e740_dai), | |
23d8f225 LPC |
115 | |
116 | .dapm_widgets = e740_dapm_widgets, | |
117 | .num_dapm_widgets = ARRAY_SIZE(e740_dapm_widgets), | |
118 | .dapm_routes = audio_map, | |
119 | .num_dapm_routes = ARRAY_SIZE(audio_map), | |
dff6c964 | 120 | .fully_routed = true, |
28796eaf IM |
121 | }; |
122 | ||
62133829 AL |
123 | static struct gpio e740_audio_gpios[] = { |
124 | { GPIO_E740_MIC_ON, GPIOF_OUT_INIT_LOW, "Mic amp" }, | |
125 | { GPIO_E740_AMP_ON, GPIOF_OUT_INIT_LOW, "Output amp" }, | |
126 | { GPIO_E740_WM9705_nAVDD2, GPIOF_OUT_INIT_HIGH, "Audio power" }, | |
127 | }; | |
28796eaf | 128 | |
570f6fe1 | 129 | static int e740_probe(struct platform_device *pdev) |
28796eaf | 130 | { |
62133829 | 131 | struct snd_soc_card *card = &e740; |
28796eaf IM |
132 | int ret; |
133 | ||
62133829 AL |
134 | ret = gpio_request_array(e740_audio_gpios, |
135 | ARRAY_SIZE(e740_audio_gpios)); | |
28796eaf IM |
136 | if (ret) |
137 | return ret; | |
138 | ||
62133829 | 139 | card->dev = &pdev->dev; |
28796eaf | 140 | |
2fd7076a | 141 | ret = devm_snd_soc_register_card(&pdev->dev, card); |
62133829 AL |
142 | if (ret) { |
143 | dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", | |
144 | ret); | |
145 | gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios)); | |
28796eaf | 146 | } |
28796eaf IM |
147 | return ret; |
148 | } | |
149 | ||
570f6fe1 | 150 | static int e740_remove(struct platform_device *pdev) |
28796eaf | 151 | { |
62133829 | 152 | gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios)); |
62133829 | 153 | return 0; |
28796eaf IM |
154 | } |
155 | ||
62133829 AL |
156 | static struct platform_driver e740_driver = { |
157 | .driver = { | |
158 | .name = "e740-audio", | |
7db1698f | 159 | .pm = &snd_soc_pm_ops, |
62133829 AL |
160 | }, |
161 | .probe = e740_probe, | |
570f6fe1 | 162 | .remove = e740_remove, |
62133829 AL |
163 | }; |
164 | ||
165 | module_platform_driver(e740_driver); | |
28796eaf IM |
166 | |
167 | /* Module information */ | |
168 | MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); | |
169 | MODULE_DESCRIPTION("ALSA SoC driver for e740"); | |
170 | MODULE_LICENSE("GPL v2"); | |
62133829 | 171 | MODULE_ALIAS("platform:e740-audio"); |