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1b49cb98 LG |
1 | /* |
2 | * tosa.c -- SoC audio for Tosa | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
5 | * Copyright 2005 Openedhand Ltd. | |
6 | * | |
d331124d | 7 | * Authors: Liam Girdwood <lrg@slimlogic.co.uk> |
1b49cb98 LG |
8 | * Richard Purdie <richard@openedhand.com> |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation; either version 2 of the License, or (at your | |
13 | * option) any later version. | |
14 | * | |
1b49cb98 LG |
15 | * GPIO's |
16 | * 1 - Jack Insertion | |
17 | * 5 - Hookswitch (headset answer/hang up switch) | |
18 | * | |
19 | */ | |
20 | ||
21 | #include <linux/module.h> | |
22 | #include <linux/moduleparam.h> | |
23 | #include <linux/device.h> | |
4440cbd6 | 24 | #include <linux/gpio.h> |
1b49cb98 | 25 | |
1b49cb98 LG |
26 | #include <sound/core.h> |
27 | #include <sound/pcm.h> | |
28 | #include <sound/soc.h> | |
29 | #include <sound/soc-dapm.h> | |
30 | ||
31 | #include <asm/mach-types.h> | |
a09e64fb | 32 | #include <mach/tosa.h> |
a09e64fb | 33 | #include <mach/audio.h> |
1b49cb98 LG |
34 | |
35 | #include "../codecs/wm9712.h" | |
36 | #include "pxa2xx-pcm.h" | |
cb4c048b | 37 | #include "pxa2xx-ac97.h" |
1b49cb98 | 38 | |
87506549 | 39 | static struct snd_soc_card tosa; |
1b49cb98 LG |
40 | |
41 | #define TOSA_HP 0 | |
42 | #define TOSA_MIC_INT 1 | |
43 | #define TOSA_HEADSET 2 | |
44 | #define TOSA_HP_OFF 3 | |
45 | #define TOSA_SPK_ON 0 | |
46 | #define TOSA_SPK_OFF 1 | |
47 | ||
48 | static int tosa_jack_func; | |
49 | static int tosa_spk_func; | |
50 | ||
51 | static void tosa_ext_control(struct snd_soc_codec *codec) | |
52 | { | |
1b49cb98 LG |
53 | /* set up jack connection */ |
54 | switch (tosa_jack_func) { | |
55 | case TOSA_HP: | |
a5302181 LG |
56 | snd_soc_dapm_disable_pin(codec, "Mic (Internal)"); |
57 | snd_soc_dapm_enable_pin(codec, "Headphone Jack"); | |
58 | snd_soc_dapm_disable_pin(codec, "Headset Jack"); | |
1b49cb98 LG |
59 | break; |
60 | case TOSA_MIC_INT: | |
a5302181 LG |
61 | snd_soc_dapm_enable_pin(codec, "Mic (Internal)"); |
62 | snd_soc_dapm_disable_pin(codec, "Headphone Jack"); | |
63 | snd_soc_dapm_disable_pin(codec, "Headset Jack"); | |
1b49cb98 LG |
64 | break; |
65 | case TOSA_HEADSET: | |
a5302181 LG |
66 | snd_soc_dapm_disable_pin(codec, "Mic (Internal)"); |
67 | snd_soc_dapm_disable_pin(codec, "Headphone Jack"); | |
68 | snd_soc_dapm_enable_pin(codec, "Headset Jack"); | |
1b49cb98 LG |
69 | break; |
70 | } | |
71 | ||
72 | if (tosa_spk_func == TOSA_SPK_ON) | |
a5302181 LG |
73 | snd_soc_dapm_enable_pin(codec, "Speaker"); |
74 | else | |
75 | snd_soc_dapm_disable_pin(codec, "Speaker"); | |
1b49cb98 | 76 | |
a5302181 | 77 | snd_soc_dapm_sync(codec); |
1b49cb98 LG |
78 | } |
79 | ||
80 | static int tosa_startup(struct snd_pcm_substream *substream) | |
81 | { | |
82 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
9e30d771 | 83 | struct snd_soc_codec *codec = rtd->socdev->card->codec; |
1b49cb98 LG |
84 | |
85 | /* check the jack status at stream startup */ | |
86 | tosa_ext_control(codec); | |
87 | return 0; | |
88 | } | |
89 | ||
90 | static struct snd_soc_ops tosa_ops = { | |
91 | .startup = tosa_startup, | |
92 | }; | |
93 | ||
94 | static int tosa_get_jack(struct snd_kcontrol *kcontrol, | |
95 | struct snd_ctl_elem_value *ucontrol) | |
96 | { | |
97 | ucontrol->value.integer.value[0] = tosa_jack_func; | |
98 | return 0; | |
99 | } | |
100 | ||
101 | static int tosa_set_jack(struct snd_kcontrol *kcontrol, | |
102 | struct snd_ctl_elem_value *ucontrol) | |
103 | { | |
104 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
105 | ||
106 | if (tosa_jack_func == ucontrol->value.integer.value[0]) | |
107 | return 0; | |
108 | ||
109 | tosa_jack_func = ucontrol->value.integer.value[0]; | |
110 | tosa_ext_control(codec); | |
111 | return 1; | |
112 | } | |
113 | ||
114 | static int tosa_get_spk(struct snd_kcontrol *kcontrol, | |
115 | struct snd_ctl_elem_value *ucontrol) | |
116 | { | |
117 | ucontrol->value.integer.value[0] = tosa_spk_func; | |
118 | return 0; | |
119 | } | |
120 | ||
121 | static int tosa_set_spk(struct snd_kcontrol *kcontrol, | |
122 | struct snd_ctl_elem_value *ucontrol) | |
123 | { | |
124 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
125 | ||
126 | if (tosa_spk_func == ucontrol->value.integer.value[0]) | |
127 | return 0; | |
128 | ||
129 | tosa_spk_func = ucontrol->value.integer.value[0]; | |
130 | tosa_ext_control(codec); | |
131 | return 1; | |
132 | } | |
133 | ||
134 | /* tosa dapm event handlers */ | |
338c7ed0 JN |
135 | static int tosa_hp_event(struct snd_soc_dapm_widget *w, |
136 | struct snd_kcontrol *k, int event) | |
1b49cb98 | 137 | { |
4440cbd6 | 138 | gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0); |
1b49cb98 LG |
139 | return 0; |
140 | } | |
141 | ||
142 | /* tosa machine dapm widgets */ | |
143 | static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = { | |
144 | SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event), | |
145 | SND_SOC_DAPM_HP("Headset Jack", NULL), | |
146 | SND_SOC_DAPM_MIC("Mic (Internal)", NULL), | |
147 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
148 | }; | |
149 | ||
150 | /* tosa audio map */ | |
76d39d0a | 151 | static const struct snd_soc_dapm_route audio_map[] = { |
1b49cb98 LG |
152 | |
153 | /* headphone connected to HPOUTL, HPOUTR */ | |
154 | {"Headphone Jack", NULL, "HPOUTL"}, | |
155 | {"Headphone Jack", NULL, "HPOUTR"}, | |
156 | ||
157 | /* ext speaker connected to LOUT2, ROUT2 */ | |
158 | {"Speaker", NULL, "LOUT2"}, | |
159 | {"Speaker", NULL, "ROUT2"}, | |
160 | ||
161 | /* internal mic is connected to mic1, mic2 differential - with bias */ | |
162 | {"MIC1", NULL, "Mic Bias"}, | |
163 | {"MIC2", NULL, "Mic Bias"}, | |
164 | {"Mic Bias", NULL, "Mic (Internal)"}, | |
165 | ||
166 | /* headset is connected to HPOUTR, and LINEINR with bias */ | |
167 | {"Headset Jack", NULL, "HPOUTR"}, | |
168 | {"LINEINR", NULL, "Mic Bias"}, | |
169 | {"Mic Bias", NULL, "Headset Jack"}, | |
1b49cb98 LG |
170 | }; |
171 | ||
172 | static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset", | |
173 | "Off"}; | |
174 | static const char *spk_function[] = {"On", "Off"}; | |
175 | static const struct soc_enum tosa_enum[] = { | |
176 | SOC_ENUM_SINGLE_EXT(5, jack_function), | |
177 | SOC_ENUM_SINGLE_EXT(2, spk_function), | |
178 | }; | |
179 | ||
180 | static const struct snd_kcontrol_new tosa_controls[] = { | |
181 | SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack, | |
182 | tosa_set_jack), | |
183 | SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk, | |
184 | tosa_set_spk), | |
185 | }; | |
186 | ||
187 | static int tosa_ac97_init(struct snd_soc_codec *codec) | |
188 | { | |
eb5f6d75 | 189 | int err; |
1b49cb98 | 190 | |
35f5e54d MB |
191 | snd_soc_dapm_nc_pin(codec, "OUT3"); |
192 | snd_soc_dapm_nc_pin(codec, "MONOOUT"); | |
1b49cb98 LG |
193 | |
194 | /* add tosa specific controls */ | |
eb5f6d75 PZ |
195 | err = snd_soc_add_controls(codec, tosa_controls, |
196 | ARRAY_SIZE(tosa_controls)); | |
197 | if (err < 0) | |
198 | return err; | |
1b49cb98 LG |
199 | |
200 | /* add tosa specific widgets */ | |
76d39d0a | 201 | snd_soc_dapm_new_controls(codec, tosa_dapm_widgets, |
25191c45 | 202 | ARRAY_SIZE(tosa_dapm_widgets)); |
1b49cb98 LG |
203 | |
204 | /* set up tosa specific audio path audio_map */ | |
25191c45 | 205 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); |
1b49cb98 | 206 | |
a5302181 | 207 | snd_soc_dapm_sync(codec); |
1b49cb98 LG |
208 | return 0; |
209 | } | |
210 | ||
211 | static struct snd_soc_dai_link tosa_dai[] = { | |
212 | { | |
213 | .name = "AC97", | |
214 | .stream_name = "AC97 HiFi", | |
215 | .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI], | |
216 | .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI], | |
217 | .init = tosa_ac97_init, | |
cb4c048b | 218 | .ops = &tosa_ops, |
1b49cb98 LG |
219 | }, |
220 | { | |
221 | .name = "AC97 Aux", | |
222 | .stream_name = "AC97 Aux", | |
223 | .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX], | |
224 | .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX], | |
cb4c048b | 225 | .ops = &tosa_ops, |
1b49cb98 LG |
226 | }, |
227 | }; | |
228 | ||
5c0d7bb7 DB |
229 | static int tosa_probe(struct platform_device *dev) |
230 | { | |
231 | int ret; | |
232 | ||
233 | ret = gpio_request(TOSA_GPIO_L_MUTE, "Headphone Jack"); | |
234 | if (ret) | |
235 | return ret; | |
236 | ret = gpio_direction_output(TOSA_GPIO_L_MUTE, 0); | |
237 | if (ret) | |
238 | gpio_free(TOSA_GPIO_L_MUTE); | |
239 | ||
240 | return ret; | |
241 | } | |
242 | ||
243 | static int tosa_remove(struct platform_device *dev) | |
244 | { | |
245 | gpio_free(TOSA_GPIO_L_MUTE); | |
246 | return 0; | |
247 | } | |
248 | ||
87506549 | 249 | static struct snd_soc_card tosa = { |
1b49cb98 | 250 | .name = "Tosa", |
87689d56 | 251 | .platform = &pxa2xx_soc_platform, |
1b49cb98 LG |
252 | .dai_link = tosa_dai, |
253 | .num_links = ARRAY_SIZE(tosa_dai), | |
5c0d7bb7 DB |
254 | .probe = tosa_probe, |
255 | .remove = tosa_remove, | |
1b49cb98 LG |
256 | }; |
257 | ||
258 | static struct snd_soc_device tosa_snd_devdata = { | |
87506549 | 259 | .card = &tosa, |
1b49cb98 LG |
260 | .codec_dev = &soc_codec_dev_wm9712, |
261 | }; | |
262 | ||
263 | static struct platform_device *tosa_snd_device; | |
264 | ||
265 | static int __init tosa_init(void) | |
266 | { | |
267 | int ret; | |
268 | ||
269 | if (!machine_is_tosa()) | |
270 | return -ENODEV; | |
271 | ||
272 | tosa_snd_device = platform_device_alloc("soc-audio", -1); | |
4440cbd6 DB |
273 | if (!tosa_snd_device) { |
274 | ret = -ENOMEM; | |
275 | goto err_alloc; | |
276 | } | |
1b49cb98 LG |
277 | |
278 | platform_set_drvdata(tosa_snd_device, &tosa_snd_devdata); | |
279 | tosa_snd_devdata.dev = &tosa_snd_device->dev; | |
280 | ret = platform_device_add(tosa_snd_device); | |
281 | ||
4440cbd6 DB |
282 | if (!ret) |
283 | return 0; | |
284 | ||
285 | platform_device_put(tosa_snd_device); | |
286 | ||
287 | err_alloc: | |
1b49cb98 LG |
288 | return ret; |
289 | } | |
290 | ||
291 | static void __exit tosa_exit(void) | |
292 | { | |
293 | platform_device_unregister(tosa_snd_device); | |
294 | } | |
295 | ||
296 | module_init(tosa_init); | |
297 | module_exit(tosa_exit); | |
298 | ||
299 | /* Module information */ | |
300 | MODULE_AUTHOR("Richard Purdie"); | |
301 | MODULE_DESCRIPTION("ALSA SoC Tosa"); | |
302 | MODULE_LICENSE("GPL"); |