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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" | |
d928b25a | 33 | #include "pxa2xx-i2s.h" |
a1eb4b3c LG |
34 | |
35 | #define CORGI_HP 0 | |
36 | #define CORGI_MIC 1 | |
37 | #define CORGI_LINE 2 | |
38 | #define CORGI_HEADSET 3 | |
39 | #define CORGI_HP_OFF 4 | |
40 | #define CORGI_SPK_ON 0 | |
41 | #define CORGI_SPK_OFF 1 | |
42 | ||
43 | /* audio clock in Hz - rounded from 12.235MHz */ | |
44 | #define CORGI_AUDIO_CLOCK 12288000 | |
45 | ||
46 | static int corgi_jack_func; | |
47 | static int corgi_spk_func; | |
48 | ||
49 | static void corgi_ext_control(struct snd_soc_codec *codec) | |
50 | { | |
a1eb4b3c LG |
51 | /* set up jack connection */ |
52 | switch (corgi_jack_func) { | |
53 | case CORGI_HP: | |
a1eb4b3c | 54 | /* set = unmute headphone */ |
6168cda9 EM |
55 | gpio_set_value(CORGI_GPIO_MUTE_L, 1); |
56 | gpio_set_value(CORGI_GPIO_MUTE_R, 1); | |
a5302181 LG |
57 | snd_soc_dapm_disable_pin(codec, "Mic Jack"); |
58 | snd_soc_dapm_disable_pin(codec, "Line Jack"); | |
59 | snd_soc_dapm_enable_pin(codec, "Headphone Jack"); | |
60 | snd_soc_dapm_disable_pin(codec, "Headset Jack"); | |
a1eb4b3c LG |
61 | break; |
62 | case CORGI_MIC: | |
a1eb4b3c | 63 | /* reset = mute headphone */ |
6168cda9 EM |
64 | gpio_set_value(CORGI_GPIO_MUTE_L, 0); |
65 | gpio_set_value(CORGI_GPIO_MUTE_R, 0); | |
a5302181 LG |
66 | snd_soc_dapm_enable_pin(codec, "Mic Jack"); |
67 | snd_soc_dapm_disable_pin(codec, "Line Jack"); | |
68 | snd_soc_dapm_disable_pin(codec, "Headphone Jack"); | |
69 | snd_soc_dapm_disable_pin(codec, "Headset Jack"); | |
a1eb4b3c LG |
70 | break; |
71 | case CORGI_LINE: | |
6168cda9 EM |
72 | gpio_set_value(CORGI_GPIO_MUTE_L, 0); |
73 | gpio_set_value(CORGI_GPIO_MUTE_R, 0); | |
a5302181 LG |
74 | snd_soc_dapm_disable_pin(codec, "Mic Jack"); |
75 | snd_soc_dapm_enable_pin(codec, "Line Jack"); | |
76 | snd_soc_dapm_disable_pin(codec, "Headphone Jack"); | |
77 | snd_soc_dapm_disable_pin(codec, "Headset Jack"); | |
a1eb4b3c LG |
78 | break; |
79 | case CORGI_HEADSET: | |
6168cda9 EM |
80 | gpio_set_value(CORGI_GPIO_MUTE_L, 0); |
81 | gpio_set_value(CORGI_GPIO_MUTE_R, 1); | |
a5302181 LG |
82 | snd_soc_dapm_enable_pin(codec, "Mic Jack"); |
83 | snd_soc_dapm_disable_pin(codec, "Line Jack"); | |
84 | snd_soc_dapm_disable_pin(codec, "Headphone Jack"); | |
85 | snd_soc_dapm_enable_pin(codec, "Headset Jack"); | |
a1eb4b3c LG |
86 | break; |
87 | } | |
88 | ||
89 | if (corgi_spk_func == CORGI_SPK_ON) | |
a5302181 LG |
90 | snd_soc_dapm_enable_pin(codec, "Ext Spk"); |
91 | else | |
92 | snd_soc_dapm_disable_pin(codec, "Ext Spk"); | |
a1eb4b3c LG |
93 | |
94 | /* signal a DAPM event */ | |
a5302181 | 95 | snd_soc_dapm_sync(codec); |
a1eb4b3c LG |
96 | } |
97 | ||
98 | static int corgi_startup(struct snd_pcm_substream *substream) | |
99 | { | |
100 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 101 | struct snd_soc_codec *codec = rtd->codec; |
a1eb4b3c LG |
102 | |
103 | /* check the jack status at stream startup */ | |
104 | corgi_ext_control(codec); | |
105 | return 0; | |
106 | } | |
107 | ||
108 | /* we need to unmute the HP at shutdown as the mute burns power on corgi */ | |
5220ed6b | 109 | static void corgi_shutdown(struct snd_pcm_substream *substream) |
a1eb4b3c | 110 | { |
a1eb4b3c | 111 | /* set = unmute headphone */ |
6168cda9 EM |
112 | gpio_set_value(CORGI_GPIO_MUTE_L, 1); |
113 | gpio_set_value(CORGI_GPIO_MUTE_R, 1); | |
a1eb4b3c LG |
114 | } |
115 | ||
d928b25a LG |
116 | static int corgi_hw_params(struct snd_pcm_substream *substream, |
117 | struct snd_pcm_hw_params *params) | |
118 | { | |
119 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
120 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
121 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
d928b25a LG |
122 | unsigned int clk = 0; |
123 | int ret = 0; | |
124 | ||
125 | switch (params_rate(params)) { | |
126 | case 8000: | |
127 | case 16000: | |
128 | case 48000: | |
129 | case 96000: | |
130 | clk = 12288000; | |
131 | break; | |
132 | case 11025: | |
133 | case 22050: | |
134 | case 44100: | |
135 | clk = 11289600; | |
136 | break; | |
137 | } | |
138 | ||
139 | /* set codec DAI configuration */ | |
64105cfd | 140 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | |
d928b25a LG |
141 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); |
142 | if (ret < 0) | |
143 | return ret; | |
144 | ||
145 | /* set cpu DAI configuration */ | |
64105cfd | 146 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | |
d928b25a LG |
147 | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); |
148 | if (ret < 0) | |
149 | return ret; | |
150 | ||
151 | /* set the codec system clock for DAC and ADC */ | |
9745e824 | 152 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL, clk, |
d928b25a LG |
153 | SND_SOC_CLOCK_IN); |
154 | if (ret < 0) | |
155 | return ret; | |
156 | ||
157 | /* set the I2S system clock as input (unused) */ | |
64105cfd | 158 | ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, |
d928b25a LG |
159 | SND_SOC_CLOCK_IN); |
160 | if (ret < 0) | |
161 | return ret; | |
162 | ||
163 | return 0; | |
164 | } | |
165 | ||
a1eb4b3c LG |
166 | static struct snd_soc_ops corgi_ops = { |
167 | .startup = corgi_startup, | |
d928b25a | 168 | .hw_params = corgi_hw_params, |
a1eb4b3c LG |
169 | .shutdown = corgi_shutdown, |
170 | }; | |
171 | ||
172 | static int corgi_get_jack(struct snd_kcontrol *kcontrol, | |
173 | struct snd_ctl_elem_value *ucontrol) | |
174 | { | |
175 | ucontrol->value.integer.value[0] = corgi_jack_func; | |
176 | return 0; | |
177 | } | |
178 | ||
179 | static int corgi_set_jack(struct snd_kcontrol *kcontrol, | |
180 | struct snd_ctl_elem_value *ucontrol) | |
181 | { | |
182 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
183 | ||
184 | if (corgi_jack_func == ucontrol->value.integer.value[0]) | |
185 | return 0; | |
186 | ||
187 | corgi_jack_func = ucontrol->value.integer.value[0]; | |
188 | corgi_ext_control(codec); | |
189 | return 1; | |
190 | } | |
191 | ||
192 | static int corgi_get_spk(struct snd_kcontrol *kcontrol, | |
193 | struct snd_ctl_elem_value *ucontrol) | |
194 | { | |
195 | ucontrol->value.integer.value[0] = corgi_spk_func; | |
196 | return 0; | |
197 | } | |
198 | ||
199 | static int corgi_set_spk(struct snd_kcontrol *kcontrol, | |
200 | struct snd_ctl_elem_value *ucontrol) | |
201 | { | |
202 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
203 | ||
204 | if (corgi_spk_func == ucontrol->value.integer.value[0]) | |
205 | return 0; | |
206 | ||
207 | corgi_spk_func = ucontrol->value.integer.value[0]; | |
208 | corgi_ext_control(codec); | |
209 | return 1; | |
210 | } | |
211 | ||
338c7ed0 JN |
212 | static int corgi_amp_event(struct snd_soc_dapm_widget *w, |
213 | struct snd_kcontrol *k, int event) | |
a1eb4b3c | 214 | { |
6168cda9 | 215 | gpio_set_value(CORGI_GPIO_APM_ON, SND_SOC_DAPM_EVENT_ON(event)); |
a1eb4b3c LG |
216 | return 0; |
217 | } | |
218 | ||
338c7ed0 JN |
219 | static int corgi_mic_event(struct snd_soc_dapm_widget *w, |
220 | struct snd_kcontrol *k, int event) | |
a1eb4b3c | 221 | { |
6168cda9 | 222 | gpio_set_value(CORGI_GPIO_MIC_BIAS, SND_SOC_DAPM_EVENT_ON(event)); |
a1eb4b3c LG |
223 | return 0; |
224 | } | |
225 | ||
226 | /* corgi machine dapm widgets */ | |
227 | static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | |
228 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
229 | SND_SOC_DAPM_MIC("Mic Jack", corgi_mic_event), | |
230 | SND_SOC_DAPM_SPK("Ext Spk", corgi_amp_event), | |
231 | SND_SOC_DAPM_LINE("Line Jack", NULL), | |
232 | SND_SOC_DAPM_HP("Headset Jack", NULL), | |
233 | }; | |
234 | ||
235 | /* Corgi machine audio map (connections to the codec pins) */ | |
25191c45 | 236 | static const struct snd_soc_dapm_route audio_map[] = { |
a1eb4b3c LG |
237 | |
238 | /* headset Jack - in = micin, out = LHPOUT*/ | |
239 | {"Headset Jack", NULL, "LHPOUT"}, | |
240 | ||
241 | /* headphone connected to LHPOUT1, RHPOUT1 */ | |
242 | {"Headphone Jack", NULL, "LHPOUT"}, | |
243 | {"Headphone Jack", NULL, "RHPOUT"}, | |
244 | ||
245 | /* speaker connected to LOUT, ROUT */ | |
246 | {"Ext Spk", NULL, "ROUT"}, | |
247 | {"Ext Spk", NULL, "LOUT"}, | |
248 | ||
249 | /* mic is connected to MICIN (via right channel of headphone jack) */ | |
250 | {"MICIN", NULL, "Mic Jack"}, | |
251 | ||
252 | /* Same as the above but no mic bias for line signals */ | |
253 | {"MICIN", NULL, "Line Jack"}, | |
a1eb4b3c LG |
254 | }; |
255 | ||
256 | static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset", | |
257 | "Off"}; | |
258 | static const char *spk_function[] = {"On", "Off"}; | |
259 | static const struct soc_enum corgi_enum[] = { | |
260 | SOC_ENUM_SINGLE_EXT(5, jack_function), | |
261 | SOC_ENUM_SINGLE_EXT(2, spk_function), | |
262 | }; | |
263 | ||
264 | static const struct snd_kcontrol_new wm8731_corgi_controls[] = { | |
265 | SOC_ENUM_EXT("Jack Function", corgi_enum[0], corgi_get_jack, | |
266 | corgi_set_jack), | |
267 | SOC_ENUM_EXT("Speaker Function", corgi_enum[1], corgi_get_spk, | |
268 | corgi_set_spk), | |
269 | }; | |
270 | ||
271 | /* | |
272 | * Logic for a wm8731 as connected on a Sharp SL-C7x0 Device | |
273 | */ | |
f0fba2ad | 274 | static int corgi_wm8731_init(struct snd_soc_pcm_runtime *rtd) |
a1eb4b3c | 275 | { |
f0fba2ad | 276 | struct snd_soc_codec *codec = rtd->codec; |
eb5f6d75 | 277 | int err; |
a1eb4b3c | 278 | |
35f5e54d MB |
279 | snd_soc_dapm_nc_pin(codec, "LLINEIN"); |
280 | snd_soc_dapm_nc_pin(codec, "RLINEIN"); | |
a1eb4b3c LG |
281 | |
282 | /* Add corgi specific controls */ | |
eb5f6d75 PZ |
283 | err = snd_soc_add_controls(codec, wm8731_corgi_controls, |
284 | ARRAY_SIZE(wm8731_corgi_controls)); | |
285 | if (err < 0) | |
286 | return err; | |
a1eb4b3c LG |
287 | |
288 | /* Add corgi specific widgets */ | |
25191c45 MB |
289 | snd_soc_dapm_new_controls(codec, wm8731_dapm_widgets, |
290 | ARRAY_SIZE(wm8731_dapm_widgets)); | |
a1eb4b3c LG |
291 | |
292 | /* Set up corgi specific audio path audio_map */ | |
25191c45 | 293 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); |
a1eb4b3c | 294 | |
a5302181 | 295 | snd_soc_dapm_sync(codec); |
a1eb4b3c LG |
296 | return 0; |
297 | } | |
298 | ||
a1eb4b3c LG |
299 | /* corgi digital audio interface glue - connects codec <--> CPU */ |
300 | static struct snd_soc_dai_link corgi_dai = { | |
301 | .name = "WM8731", | |
302 | .stream_name = "WM8731", | |
f0fba2ad LG |
303 | .cpu_dai_name = "pxa-is2-dai", |
304 | .codec_dai_name = "wm8731-hifi", | |
305 | .platform_name = "pxa-pcm-audio", | |
306 | .codec_name = "wm8731-codec-0.001a", | |
a1eb4b3c | 307 | .init = corgi_wm8731_init, |
d928b25a | 308 | .ops = &corgi_ops, |
a1eb4b3c LG |
309 | }; |
310 | ||
311 | /* corgi audio machine driver */ | |
87506549 | 312 | static struct snd_soc_card snd_soc_corgi = { |
a1eb4b3c LG |
313 | .name = "Corgi", |
314 | .dai_link = &corgi_dai, | |
315 | .num_links = 1, | |
a1eb4b3c LG |
316 | }; |
317 | ||
a1eb4b3c LG |
318 | static struct platform_device *corgi_snd_device; |
319 | ||
320 | static int __init corgi_init(void) | |
321 | { | |
322 | int ret; | |
323 | ||
1bfcd361 MB |
324 | if (!(machine_is_corgi() || machine_is_shepherd() || |
325 | machine_is_husky())) | |
a1eb4b3c LG |
326 | return -ENODEV; |
327 | ||
328 | corgi_snd_device = platform_device_alloc("soc-audio", -1); | |
329 | if (!corgi_snd_device) | |
330 | return -ENOMEM; | |
331 | ||
f0fba2ad | 332 | platform_set_drvdata(corgi_snd_device, &snd_soc_corgi); |
a1eb4b3c LG |
333 | ret = platform_device_add(corgi_snd_device); |
334 | ||
335 | if (ret) | |
336 | platform_device_put(corgi_snd_device); | |
337 | ||
338 | return ret; | |
339 | } | |
340 | ||
341 | static void __exit corgi_exit(void) | |
342 | { | |
343 | platform_device_unregister(corgi_snd_device); | |
344 | } | |
345 | ||
346 | module_init(corgi_init); | |
347 | module_exit(corgi_exit); | |
348 | ||
349 | /* Module information */ | |
350 | MODULE_AUTHOR("Richard Purdie"); | |
351 | MODULE_DESCRIPTION("ALSA SoC Corgi"); | |
352 | MODULE_LICENSE("GPL"); |