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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", | |
28796eaf IM |
136 | .dai_link = e740_dai, |
137 | .num_links = ARRAY_SIZE(e740_dai), | |
138 | }; | |
139 | ||
28796eaf IM |
140 | static struct platform_device *e740_snd_device; |
141 | ||
142 | static int __init e740_init(void) | |
143 | { | |
144 | int ret; | |
145 | ||
146 | if (!machine_is_e740()) | |
147 | return -ENODEV; | |
148 | ||
149 | ret = gpio_request(GPIO_E740_MIC_ON, "Mic amp"); | |
150 | if (ret) | |
151 | return ret; | |
152 | ||
153 | ret = gpio_request(GPIO_E740_AMP_ON, "Output amp"); | |
154 | if (ret) | |
155 | goto free_mic_amp_gpio; | |
156 | ||
157 | ret = gpio_request(GPIO_E740_WM9705_nAVDD2, "Audio power"); | |
158 | if (ret) | |
159 | goto free_op_amp_gpio; | |
160 | ||
161 | /* Disable audio */ | |
162 | ret = gpio_direction_output(GPIO_E740_MIC_ON, 0); | |
163 | if (ret) | |
164 | goto free_apwr_gpio; | |
165 | ret = gpio_direction_output(GPIO_E740_AMP_ON, 0); | |
166 | if (ret) | |
167 | goto free_apwr_gpio; | |
168 | ret = gpio_direction_output(GPIO_E740_WM9705_nAVDD2, 1); | |
169 | if (ret) | |
170 | goto free_apwr_gpio; | |
171 | ||
172 | e740_snd_device = platform_device_alloc("soc-audio", -1); | |
173 | if (!e740_snd_device) { | |
174 | ret = -ENOMEM; | |
175 | goto free_apwr_gpio; | |
176 | } | |
177 | ||
f0fba2ad | 178 | platform_set_drvdata(e740_snd_device, &e740); |
28796eaf IM |
179 | ret = platform_device_add(e740_snd_device); |
180 | ||
181 | if (!ret) | |
182 | return 0; | |
183 | ||
184 | /* Fail gracefully */ | |
185 | platform_device_put(e740_snd_device); | |
186 | free_apwr_gpio: | |
187 | gpio_free(GPIO_E740_WM9705_nAVDD2); | |
188 | free_op_amp_gpio: | |
189 | gpio_free(GPIO_E740_AMP_ON); | |
190 | free_mic_amp_gpio: | |
191 | gpio_free(GPIO_E740_MIC_ON); | |
192 | ||
193 | return ret; | |
194 | } | |
195 | ||
196 | static void __exit e740_exit(void) | |
197 | { | |
198 | platform_device_unregister(e740_snd_device); | |
b67696b4 AL |
199 | gpio_free(GPIO_E740_WM9705_nAVDD2); |
200 | gpio_free(GPIO_E740_AMP_ON); | |
201 | gpio_free(GPIO_E740_MIC_ON); | |
28796eaf IM |
202 | } |
203 | ||
204 | module_init(e740_init); | |
205 | module_exit(e740_exit); | |
206 | ||
207 | /* Module information */ | |
208 | MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); | |
209 | MODULE_DESCRIPTION("ALSA SoC driver for e740"); | |
210 | MODULE_LICENSE("GPL v2"); |