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a1eb4b3c LG |
1 | /* |
2 | * corgi.c -- SoC audio for Corgi | |
3 | * | |
4 | * Copyright 2005 Wolfson Microelectronics PLC. | |
5 | * Copyright 2005 Openedhand Ltd. | |
6 | * | |
d331124d | 7 | * Authors: Liam Girdwood <lrg@slimlogic.co.uk> |
a1eb4b3c 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. | |
a1eb4b3c LG |
14 | */ |
15 | ||
16 | #include <linux/module.h> | |
17 | #include <linux/moduleparam.h> | |
18 | #include <linux/timer.h> | |
fc996757 | 19 | #include <linux/i2c.h> |
a1eb4b3c LG |
20 | #include <linux/interrupt.h> |
21 | #include <linux/platform_device.h> | |
6168cda9 | 22 | #include <linux/gpio.h> |
a1eb4b3c LG |
23 | #include <sound/core.h> |
24 | #include <sound/pcm.h> | |
25 | #include <sound/soc.h> | |
26 | #include <sound/soc-dapm.h> | |
27 | ||
28 | #include <asm/mach-types.h> | |
a09e64fb RK |
29 | #include <mach/corgi.h> |
30 | #include <mach/audio.h> | |
a1eb4b3c LG |
31 | |
32 | #include "../codecs/wm8731.h" | |
33 | #include "pxa2xx-pcm.h" | |
d928b25a | 34 | #include "pxa2xx-i2s.h" |
a1eb4b3c LG |
35 | |
36 | #define CORGI_HP 0 | |
37 | #define CORGI_MIC 1 | |
38 | #define CORGI_LINE 2 | |
39 | #define CORGI_HEADSET 3 | |
40 | #define CORGI_HP_OFF 4 | |
41 | #define CORGI_SPK_ON 0 | |
42 | #define CORGI_SPK_OFF 1 | |
43 | ||
44 | /* audio clock in Hz - rounded from 12.235MHz */ | |
45 | #define CORGI_AUDIO_CLOCK 12288000 | |
46 | ||
47 | static int corgi_jack_func; | |
48 | static int corgi_spk_func; | |
49 | ||
50 | static void corgi_ext_control(struct snd_soc_codec *codec) | |
51 | { | |
a1eb4b3c LG |
52 | /* set up jack connection */ |
53 | switch (corgi_jack_func) { | |
54 | case CORGI_HP: | |
a1eb4b3c | 55 | /* set = unmute headphone */ |
6168cda9 EM |
56 | gpio_set_value(CORGI_GPIO_MUTE_L, 1); |
57 | gpio_set_value(CORGI_GPIO_MUTE_R, 1); | |
a5302181 LG |
58 | snd_soc_dapm_disable_pin(codec, "Mic Jack"); |
59 | snd_soc_dapm_disable_pin(codec, "Line Jack"); | |
60 | snd_soc_dapm_enable_pin(codec, "Headphone Jack"); | |
61 | snd_soc_dapm_disable_pin(codec, "Headset Jack"); | |
a1eb4b3c LG |
62 | break; |
63 | case CORGI_MIC: | |
a1eb4b3c | 64 | /* reset = mute headphone */ |
6168cda9 EM |
65 | gpio_set_value(CORGI_GPIO_MUTE_L, 0); |
66 | gpio_set_value(CORGI_GPIO_MUTE_R, 0); | |
a5302181 LG |
67 | snd_soc_dapm_enable_pin(codec, "Mic Jack"); |
68 | snd_soc_dapm_disable_pin(codec, "Line Jack"); | |
69 | snd_soc_dapm_disable_pin(codec, "Headphone Jack"); | |
70 | snd_soc_dapm_disable_pin(codec, "Headset Jack"); | |
a1eb4b3c LG |
71 | break; |
72 | case CORGI_LINE: | |
6168cda9 EM |
73 | gpio_set_value(CORGI_GPIO_MUTE_L, 0); |
74 | gpio_set_value(CORGI_GPIO_MUTE_R, 0); | |
a5302181 LG |
75 | snd_soc_dapm_disable_pin(codec, "Mic Jack"); |
76 | snd_soc_dapm_enable_pin(codec, "Line Jack"); | |
77 | snd_soc_dapm_disable_pin(codec, "Headphone Jack"); | |
78 | snd_soc_dapm_disable_pin(codec, "Headset Jack"); | |
a1eb4b3c LG |
79 | break; |
80 | case CORGI_HEADSET: | |
6168cda9 EM |
81 | gpio_set_value(CORGI_GPIO_MUTE_L, 0); |
82 | gpio_set_value(CORGI_GPIO_MUTE_R, 1); | |
a5302181 LG |
83 | snd_soc_dapm_enable_pin(codec, "Mic Jack"); |
84 | snd_soc_dapm_disable_pin(codec, "Line Jack"); | |
85 | snd_soc_dapm_disable_pin(codec, "Headphone Jack"); | |
86 | snd_soc_dapm_enable_pin(codec, "Headset Jack"); | |
a1eb4b3c LG |
87 | break; |
88 | } | |
89 | ||
90 | if (corgi_spk_func == CORGI_SPK_ON) | |
a5302181 LG |
91 | snd_soc_dapm_enable_pin(codec, "Ext Spk"); |
92 | else | |
93 | snd_soc_dapm_disable_pin(codec, "Ext Spk"); | |
a1eb4b3c LG |
94 | |
95 | /* signal a DAPM event */ | |
a5302181 | 96 | snd_soc_dapm_sync(codec); |
a1eb4b3c LG |
97 | } |
98 | ||
99 | static int corgi_startup(struct snd_pcm_substream *substream) | |
100 | { | |
101 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 102 | struct snd_soc_codec *codec = rtd->codec; |
a1eb4b3c LG |
103 | |
104 | /* check the jack status at stream startup */ | |
105 | corgi_ext_control(codec); | |
106 | return 0; | |
107 | } | |
108 | ||
109 | /* we need to unmute the HP at shutdown as the mute burns power on corgi */ | |
5220ed6b | 110 | static void corgi_shutdown(struct snd_pcm_substream *substream) |
a1eb4b3c | 111 | { |
a1eb4b3c | 112 | /* set = unmute headphone */ |
6168cda9 EM |
113 | gpio_set_value(CORGI_GPIO_MUTE_L, 1); |
114 | gpio_set_value(CORGI_GPIO_MUTE_R, 1); | |
a1eb4b3c LG |
115 | } |
116 | ||
d928b25a LG |
117 | static int corgi_hw_params(struct snd_pcm_substream *substream, |
118 | struct snd_pcm_hw_params *params) | |
119 | { | |
120 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
121 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
122 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
d928b25a LG |
123 | unsigned int clk = 0; |
124 | int ret = 0; | |
125 | ||
126 | switch (params_rate(params)) { | |
127 | case 8000: | |
128 | case 16000: | |
129 | case 48000: | |
130 | case 96000: | |
131 | clk = 12288000; | |
132 | break; | |
133 | case 11025: | |
134 | case 22050: | |
135 | case 44100: | |
136 | clk = 11289600; | |
137 | break; | |
138 | } | |
139 | ||
140 | /* set codec DAI configuration */ | |
64105cfd | 141 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | |
d928b25a LG |
142 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); |
143 | if (ret < 0) | |
144 | return ret; | |
145 | ||
146 | /* set cpu DAI configuration */ | |
64105cfd | 147 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | |
d928b25a LG |
148 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); |
149 | if (ret < 0) | |
150 | return ret; | |
151 | ||
152 | /* set the codec system clock for DAC and ADC */ | |
64105cfd | 153 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK, clk, |
d928b25a LG |
154 | SND_SOC_CLOCK_IN); |
155 | if (ret < 0) | |
156 | return ret; | |
157 | ||
158 | /* set the I2S system clock as input (unused) */ | |
64105cfd | 159 | ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, |
d928b25a LG |
160 | SND_SOC_CLOCK_IN); |
161 | if (ret < 0) | |
162 | return ret; | |
163 | ||
164 | return 0; | |
165 | } | |
166 | ||
a1eb4b3c LG |
167 | static struct snd_soc_ops corgi_ops = { |
168 | .startup = corgi_startup, | |
d928b25a | 169 | .hw_params = corgi_hw_params, |
a1eb4b3c LG |
170 | .shutdown = corgi_shutdown, |
171 | }; | |
172 | ||
173 | static int corgi_get_jack(struct snd_kcontrol *kcontrol, | |
174 | struct snd_ctl_elem_value *ucontrol) | |
175 | { | |
176 | ucontrol->value.integer.value[0] = corgi_jack_func; | |
177 | return 0; | |
178 | } | |
179 | ||
180 | static int corgi_set_jack(struct snd_kcontrol *kcontrol, | |
181 | struct snd_ctl_elem_value *ucontrol) | |
182 | { | |
183 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
184 | ||
185 | if (corgi_jack_func == ucontrol->value.integer.value[0]) | |
186 | return 0; | |
187 | ||
188 | corgi_jack_func = ucontrol->value.integer.value[0]; | |
189 | corgi_ext_control(codec); | |
190 | return 1; | |
191 | } | |
192 | ||
193 | static int corgi_get_spk(struct snd_kcontrol *kcontrol, | |
194 | struct snd_ctl_elem_value *ucontrol) | |
195 | { | |
196 | ucontrol->value.integer.value[0] = corgi_spk_func; | |
197 | return 0; | |
198 | } | |
199 | ||
200 | static int corgi_set_spk(struct snd_kcontrol *kcontrol, | |
201 | struct snd_ctl_elem_value *ucontrol) | |
202 | { | |
203 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
204 | ||
205 | if (corgi_spk_func == ucontrol->value.integer.value[0]) | |
206 | return 0; | |
207 | ||
208 | corgi_spk_func = ucontrol->value.integer.value[0]; | |
209 | corgi_ext_control(codec); | |
210 | return 1; | |
211 | } | |
212 | ||
338c7ed0 JN |
213 | static int corgi_amp_event(struct snd_soc_dapm_widget *w, |
214 | struct snd_kcontrol *k, int event) | |
a1eb4b3c | 215 | { |
6168cda9 | 216 | gpio_set_value(CORGI_GPIO_APM_ON, SND_SOC_DAPM_EVENT_ON(event)); |
a1eb4b3c LG |
217 | return 0; |
218 | } | |
219 | ||
338c7ed0 JN |
220 | static int corgi_mic_event(struct snd_soc_dapm_widget *w, |
221 | struct snd_kcontrol *k, int event) | |
a1eb4b3c | 222 | { |
6168cda9 | 223 | gpio_set_value(CORGI_GPIO_MIC_BIAS, SND_SOC_DAPM_EVENT_ON(event)); |
a1eb4b3c LG |
224 | return 0; |
225 | } | |
226 | ||
227 | /* corgi machine dapm widgets */ | |
228 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | |
229 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
230 | SND_SOC_DAPM_MIC("Mic Jack", corgi_mic_event), | |
231 | SND_SOC_DAPM_SPK("Ext Spk", corgi_amp_event), | |
232 | SND_SOC_DAPM_LINE("Line Jack", NULL), | |
233 | SND_SOC_DAPM_HP("Headset Jack", NULL), | |
234 | }; | |
235 | ||
236 | /* Corgi machine audio map (connections to the codec pins) */ | |
25191c45 | 237 | static const struct snd_soc_dapm_route audio_map[] = { |
a1eb4b3c LG |
238 | |
239 | /* headset Jack - in = micin, out = LHPOUT*/ | |
240 | {"Headset Jack", NULL, "LHPOUT"}, | |
241 | ||
242 | /* headphone connected to LHPOUT1, RHPOUT1 */ | |
243 | {"Headphone Jack", NULL, "LHPOUT"}, | |
244 | {"Headphone Jack", NULL, "RHPOUT"}, | |
245 | ||
246 | /* speaker connected to LOUT, ROUT */ | |
247 | {"Ext Spk", NULL, "ROUT"}, | |
248 | {"Ext Spk", NULL, "LOUT"}, | |
249 | ||
250 | /* mic is connected to MICIN (via right channel of headphone jack) */ | |
251 | {"MICIN", NULL, "Mic Jack"}, | |
252 | ||
253 | /* Same as the above but no mic bias for line signals */ | |
254 | {"MICIN", NULL, "Line Jack"}, | |
a1eb4b3c LG |
255 | }; |
256 | ||
257 | static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset", | |
258 | "Off"}; | |
259 | static const char *spk_function[] = {"On", "Off"}; | |
260 | static const struct soc_enum corgi_enum[] = { | |
261 | SOC_ENUM_SINGLE_EXT(5, jack_function), | |
262 | SOC_ENUM_SINGLE_EXT(2, spk_function), | |
263 | }; | |
264 | ||
265 | static const struct snd_kcontrol_new wm8731_corgi_controls[] = { | |
266 | SOC_ENUM_EXT("Jack Function", corgi_enum[0], corgi_get_jack, | |
267 | corgi_set_jack), | |
268 | SOC_ENUM_EXT("Speaker Function", corgi_enum[1], corgi_get_spk, | |
269 | corgi_set_spk), | |
270 | }; | |
271 | ||
272 | /* | |
273 | * Logic for a wm8731 as connected on a Sharp SL-C7x0 Device | |
274 | */ | |
f0fba2ad | 275 | static int corgi_wm8731_init(struct snd_soc_pcm_runtime *rtd) |
a1eb4b3c | 276 | { |
f0fba2ad | 277 | struct snd_soc_codec *codec = rtd->codec; |
eb5f6d75 | 278 | int err; |
a1eb4b3c | 279 | |
35f5e54d MB |
280 | snd_soc_dapm_nc_pin(codec, "LLINEIN"); |
281 | snd_soc_dapm_nc_pin(codec, "RLINEIN"); | |
a1eb4b3c LG |
282 | |
283 | /* Add corgi specific controls */ | |
eb5f6d75 PZ |
284 | err = snd_soc_add_controls(codec, wm8731_corgi_controls, |
285 | ARRAY_SIZE(wm8731_corgi_controls)); | |
286 | if (err < 0) | |
287 | return err; | |
a1eb4b3c LG |
288 | |
289 | /* Add corgi specific widgets */ | |
25191c45 MB |
290 | snd_soc_dapm_new_controls(codec, wm8731_dapm_widgets, |
291 | ARRAY_SIZE(wm8731_dapm_widgets)); | |
a1eb4b3c LG |
292 | |
293 | /* Set up corgi specific audio path audio_map */ | |
25191c45 | 294 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); |
a1eb4b3c | 295 | |
a5302181 | 296 | snd_soc_dapm_sync(codec); |
a1eb4b3c LG |
297 | return 0; |
298 | } | |
299 | ||
a1eb4b3c LG |
300 | /* corgi digital audio interface glue - connects codec <--> CPU */ |
301 | static struct snd_soc_dai_link corgi_dai = { | |
302 | .name = "WM8731", | |
303 | .stream_name = "WM8731", | |
f0fba2ad LG |
304 | .cpu_dai_name = "pxa-is2-dai", |
305 | .codec_dai_name = "wm8731-hifi", | |
306 | .platform_name = "pxa-pcm-audio", | |
307 | .codec_name = "wm8731-codec-0.001a", | |
a1eb4b3c | 308 | .init = corgi_wm8731_init, |
d928b25a | 309 | .ops = &corgi_ops, |
a1eb4b3c LG |
310 | }; |
311 | ||
312 | /* corgi audio machine driver */ | |
87506549 | 313 | static struct snd_soc_card snd_soc_corgi = { |
a1eb4b3c LG |
314 | .name = "Corgi", |
315 | .dai_link = &corgi_dai, | |
316 | .num_links = 1, | |
a1eb4b3c LG |
317 | }; |
318 | ||
a1eb4b3c LG |
319 | static struct platform_device *corgi_snd_device; |
320 | ||
321 | static int __init corgi_init(void) | |
322 | { | |
323 | int ret; | |
324 | ||
1bfcd361 MB |
325 | if (!(machine_is_corgi() || machine_is_shepherd() || |
326 | machine_is_husky())) | |
a1eb4b3c LG |
327 | return -ENODEV; |
328 | ||
329 | corgi_snd_device = platform_device_alloc("soc-audio", -1); | |
330 | if (!corgi_snd_device) | |
331 | return -ENOMEM; | |
332 | ||
f0fba2ad | 333 | platform_set_drvdata(corgi_snd_device, &snd_soc_corgi); |
a1eb4b3c LG |
334 | ret = platform_device_add(corgi_snd_device); |
335 | ||
336 | if (ret) | |
337 | platform_device_put(corgi_snd_device); | |
338 | ||
339 | return ret; | |
340 | } | |
341 | ||
342 | static void __exit corgi_exit(void) | |
343 | { | |
344 | platform_device_unregister(corgi_snd_device); | |
345 | } | |
346 | ||
347 | module_init(corgi_init); | |
348 | module_exit(corgi_exit); | |
349 | ||
350 | /* Module information */ | |
351 | MODULE_AUTHOR("Richard Purdie"); | |
352 | MODULE_DESCRIPTION("ALSA SoC Corgi"); | |
353 | MODULE_LICENSE("GPL"); |