diff options
Diffstat (limited to 'sound/soc/pxa/e740_wm9705.c')
-rw-r--r-- | sound/soc/pxa/e740_wm9705.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/sound/soc/pxa/e740_wm9705.c b/sound/soc/pxa/e740_wm9705.c new file mode 100644 index 000000000000..7cd2f89d7b10 --- /dev/null +++ b/sound/soc/pxa/e740_wm9705.c | |||
@@ -0,0 +1,211 @@ | |||
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> | ||
19 | #include <sound/soc-dapm.h> | ||
20 | |||
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 | |||
31 | #define E740_AUDIO_OUT 1 | ||
32 | #define E740_AUDIO_IN 2 | ||
33 | |||
34 | static int e740_audio_power; | ||
35 | |||
36 | static void e740_sync_audio_power(int status) | ||
37 | { | ||
38 | gpio_set_value(GPIO_E740_WM9705_nAVDD2, !status); | ||
39 | gpio_set_value(GPIO_E740_AMP_ON, (status & E740_AUDIO_OUT) ? 1 : 0); | ||
40 | gpio_set_value(GPIO_E740_MIC_ON, (status & E740_AUDIO_IN) ? 1 : 0); | ||
41 | } | ||
42 | |||
43 | static int e740_mic_amp_event(struct snd_soc_dapm_widget *w, | ||
44 | struct snd_kcontrol *kcontrol, int event) | ||
45 | { | ||
46 | if (event & SND_SOC_DAPM_PRE_PMU) | ||
47 | e740_audio_power |= E740_AUDIO_IN; | ||
48 | else if (event & SND_SOC_DAPM_POST_PMD) | ||
49 | e740_audio_power &= ~E740_AUDIO_IN; | ||
50 | |||
51 | e740_sync_audio_power(e740_audio_power); | ||
52 | |||
53 | return 0; | ||
54 | } | ||
55 | |||
56 | static int e740_output_amp_event(struct snd_soc_dapm_widget *w, | ||
57 | struct snd_kcontrol *kcontrol, int event) | ||
58 | { | ||
59 | if (event & SND_SOC_DAPM_PRE_PMU) | ||
60 | e740_audio_power |= E740_AUDIO_OUT; | ||
61 | else if (event & SND_SOC_DAPM_POST_PMD) | ||
62 | e740_audio_power &= ~E740_AUDIO_OUT; | ||
63 | |||
64 | e740_sync_audio_power(e740_audio_power); | ||
65 | |||
66 | return 0; | ||
67 | } | ||
68 | |||
69 | static const struct snd_soc_dapm_widget e740_dapm_widgets[] = { | ||
70 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | ||
71 | SND_SOC_DAPM_SPK("Speaker", NULL), | ||
72 | SND_SOC_DAPM_MIC("Mic (Internal)", NULL), | ||
73 | SND_SOC_DAPM_PGA_E("Output Amp", SND_SOC_NOPM, 0, 0, NULL, 0, | ||
74 | e740_output_amp_event, SND_SOC_DAPM_PRE_PMU | | ||
75 | SND_SOC_DAPM_POST_PMD), | ||
76 | SND_SOC_DAPM_PGA_E("Mic Amp", SND_SOC_NOPM, 0, 0, NULL, 0, | ||
77 | e740_mic_amp_event, SND_SOC_DAPM_PRE_PMU | | ||
78 | SND_SOC_DAPM_POST_PMD), | ||
79 | }; | ||
80 | |||
81 | static const struct snd_soc_dapm_route audio_map[] = { | ||
82 | {"Output Amp", NULL, "LOUT"}, | ||
83 | {"Output Amp", NULL, "ROUT"}, | ||
84 | {"Output Amp", NULL, "MONOOUT"}, | ||
85 | |||
86 | {"Speaker", NULL, "Output Amp"}, | ||
87 | {"Headphone Jack", NULL, "Output Amp"}, | ||
88 | |||
89 | {"MIC1", NULL, "Mic Amp"}, | ||
90 | {"Mic Amp", NULL, "Mic (Internal)"}, | ||
91 | }; | ||
92 | |||
93 | static int e740_ac97_init(struct snd_soc_codec *codec) | ||
94 | { | ||
95 | snd_soc_dapm_nc_pin(codec, "HPOUTL"); | ||
96 | snd_soc_dapm_nc_pin(codec, "HPOUTR"); | ||
97 | snd_soc_dapm_nc_pin(codec, "PHONE"); | ||
98 | snd_soc_dapm_nc_pin(codec, "LINEINL"); | ||
99 | snd_soc_dapm_nc_pin(codec, "LINEINR"); | ||
100 | snd_soc_dapm_nc_pin(codec, "CDINL"); | ||
101 | snd_soc_dapm_nc_pin(codec, "CDINR"); | ||
102 | snd_soc_dapm_nc_pin(codec, "PCBEEP"); | ||
103 | snd_soc_dapm_nc_pin(codec, "MIC2"); | ||
104 | |||
105 | snd_soc_dapm_new_controls(codec, e740_dapm_widgets, | ||
106 | ARRAY_SIZE(e740_dapm_widgets)); | ||
107 | |||
108 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); | ||
109 | |||
110 | snd_soc_dapm_sync(codec); | ||
111 | |||
112 | return 0; | ||
113 | } | ||
114 | |||
115 | static struct snd_soc_dai_link e740_dai[] = { | ||
116 | { | ||
117 | .name = "AC97", | ||
118 | .stream_name = "AC97 HiFi", | ||
119 | .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI], | ||
120 | .codec_dai = &wm9705_dai[WM9705_DAI_AC97_HIFI], | ||
121 | .init = e740_ac97_init, | ||
122 | }, | ||
123 | { | ||
124 | .name = "AC97 Aux", | ||
125 | .stream_name = "AC97 Aux", | ||
126 | .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX], | ||
127 | .codec_dai = &wm9705_dai[WM9705_DAI_AC97_AUX], | ||
128 | }, | ||
129 | }; | ||
130 | |||
131 | static struct snd_soc_card e740 = { | ||
132 | .name = "Toshiba e740", | ||
133 | .platform = &pxa2xx_soc_platform, | ||
134 | .dai_link = e740_dai, | ||
135 | .num_links = ARRAY_SIZE(e740_dai), | ||
136 | }; | ||
137 | |||
138 | static struct snd_soc_device e740_snd_devdata = { | ||
139 | .card = &e740, | ||
140 | .codec_dev = &soc_codec_dev_wm9705, | ||
141 | }; | ||
142 | |||
143 | static struct platform_device *e740_snd_device; | ||
144 | |||
145 | static int __init e740_init(void) | ||
146 | { | ||
147 | int ret; | ||
148 | |||
149 | if (!machine_is_e740()) | ||
150 | return -ENODEV; | ||
151 | |||
152 | ret = gpio_request(GPIO_E740_MIC_ON, "Mic amp"); | ||
153 | if (ret) | ||
154 | return ret; | ||
155 | |||
156 | ret = gpio_request(GPIO_E740_AMP_ON, "Output amp"); | ||
157 | if (ret) | ||
158 | goto free_mic_amp_gpio; | ||
159 | |||
160 | ret = gpio_request(GPIO_E740_WM9705_nAVDD2, "Audio power"); | ||
161 | if (ret) | ||
162 | goto free_op_amp_gpio; | ||
163 | |||
164 | /* Disable audio */ | ||
165 | ret = gpio_direction_output(GPIO_E740_MIC_ON, 0); | ||
166 | if (ret) | ||
167 | goto free_apwr_gpio; | ||
168 | ret = gpio_direction_output(GPIO_E740_AMP_ON, 0); | ||
169 | if (ret) | ||
170 | goto free_apwr_gpio; | ||
171 | ret = gpio_direction_output(GPIO_E740_WM9705_nAVDD2, 1); | ||
172 | if (ret) | ||
173 | goto free_apwr_gpio; | ||
174 | |||
175 | e740_snd_device = platform_device_alloc("soc-audio", -1); | ||
176 | if (!e740_snd_device) { | ||
177 | ret = -ENOMEM; | ||
178 | goto free_apwr_gpio; | ||
179 | } | ||
180 | |||
181 | platform_set_drvdata(e740_snd_device, &e740_snd_devdata); | ||
182 | e740_snd_devdata.dev = &e740_snd_device->dev; | ||
183 | ret = platform_device_add(e740_snd_device); | ||
184 | |||
185 | if (!ret) | ||
186 | return 0; | ||
187 | |||
188 | /* Fail gracefully */ | ||
189 | platform_device_put(e740_snd_device); | ||
190 | free_apwr_gpio: | ||
191 | gpio_free(GPIO_E740_WM9705_nAVDD2); | ||
192 | free_op_amp_gpio: | ||
193 | gpio_free(GPIO_E740_AMP_ON); | ||
194 | free_mic_amp_gpio: | ||
195 | gpio_free(GPIO_E740_MIC_ON); | ||
196 | |||
197 | return ret; | ||
198 | } | ||
199 | |||
200 | static void __exit e740_exit(void) | ||
201 | { | ||
202 | platform_device_unregister(e740_snd_device); | ||
203 | } | ||
204 | |||
205 | module_init(e740_init); | ||
206 | module_exit(e740_exit); | ||
207 | |||
208 | /* Module information */ | ||
209 | MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); | ||
210 | MODULE_DESCRIPTION("ALSA SoC driver for e740"); | ||
211 | MODULE_LICENSE("GPL v2"); | ||