251afbe303c671c88f5ce23f7ef27c76370a1474
[linux-2.6.git] / sound / soc / omap / rx51.c
1 /*
2  * rx51.c  --  SoC audio for Nokia RX-51
3  *
4  * Copyright (C) 2008 - 2009 Nokia Corporation
5  *
6  * Contact: Peter Ujfalusi <peter.ujfalusi@nokia.com>
7  *          Eduardo Valentin <eduardo.valentin@nokia.com>
8  *          Jarkko Nikula <jhnikula@gmail.com>
9  *
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License
12  * version 2 as published by the Free Software Foundation.
13  *
14  * This program is distributed in the hope that it will be useful, but
15  * WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17  * General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22  * 02110-1301 USA
23  *
24  */
25
26 #include <linux/delay.h>
27 #include <linux/gpio.h>
28 #include <linux/platform_device.h>
29 #include <sound/core.h>
30 #include <sound/jack.h>
31 #include <sound/pcm.h>
32 #include <sound/soc.h>
33 #include <plat/mcbsp.h>
34 #include "../codecs/tpa6130a2.h"
35
36 #include <asm/mach-types.h>
37
38 #include "omap-mcbsp.h"
39 #include "omap-pcm.h"
40
41 #define RX51_TVOUT_SEL_GPIO             40
42 #define RX51_JACK_DETECT_GPIO           177
43 /*
44  * REVISIT: TWL4030 GPIO base in RX-51. Now statically defined to 192. This
45  * gpio is reserved in arch/arm/mach-omap2/board-rx51-peripherals.c
46  */
47 #define RX51_SPEAKER_AMP_TWL_GPIO       (192 + 7)
48
49 enum {
50         RX51_JACK_DISABLED,
51         RX51_JACK_TVOUT,                /* tv-out with stereo output */
52         RX51_JACK_HP,                   /* headphone: stereo output, no mic */
53 };
54
55 static int rx51_spk_func;
56 static int rx51_dmic_func;
57 static int rx51_jack_func;
58
59 static void rx51_ext_control(struct snd_soc_codec *codec)
60 {
61         struct snd_soc_dapm_context *dapm = &codec->dapm;
62         int hp = 0, tvout = 0;
63
64         switch (rx51_jack_func) {
65         case RX51_JACK_TVOUT:
66                 tvout = 1;
67         case RX51_JACK_HP:
68                 hp = 1;
69                 break;
70         }
71
72         if (rx51_spk_func)
73                 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
74         else
75                 snd_soc_dapm_disable_pin(dapm, "Ext Spk");
76         if (rx51_dmic_func)
77                 snd_soc_dapm_enable_pin(dapm, "DMic");
78         else
79                 snd_soc_dapm_disable_pin(dapm, "DMic");
80         if (hp)
81                 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
82         else
83                 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
84
85         gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);
86
87         snd_soc_dapm_sync(dapm);
88 }
89
90 static int rx51_startup(struct snd_pcm_substream *substream)
91 {
92         struct snd_pcm_runtime *runtime = substream->runtime;
93         struct snd_soc_pcm_runtime *rtd = substream->private_data;
94         struct snd_soc_codec *codec = rtd->codec;
95
96         snd_pcm_hw_constraint_minmax(runtime,
97                                      SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
98         rx51_ext_control(codec);
99
100         return 0;
101 }
102
103 static int rx51_hw_params(struct snd_pcm_substream *substream,
104         struct snd_pcm_hw_params *params)
105 {
106         struct snd_soc_pcm_runtime *rtd = substream->private_data;
107         struct snd_soc_dai *codec_dai = rtd->codec_dai;
108         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
109         int err;
110
111         /* Set codec DAI configuration */
112         err = snd_soc_dai_set_fmt(codec_dai,
113                                   SND_SOC_DAIFMT_DSP_A |
114                                   SND_SOC_DAIFMT_IB_NF |
115                                   SND_SOC_DAIFMT_CBM_CFM);
116         if (err < 0)
117                 return err;
118
119         /* Set cpu DAI configuration */
120         err = snd_soc_dai_set_fmt(cpu_dai,
121                                   SND_SOC_DAIFMT_DSP_A |
122                                   SND_SOC_DAIFMT_IB_NF |
123                                   SND_SOC_DAIFMT_CBM_CFM);
124         if (err < 0)
125                 return err;
126
127         /* Set the codec system clock for DAC and ADC */
128         return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
129                                       SND_SOC_CLOCK_IN);
130 }
131
132 static struct snd_soc_ops rx51_ops = {
133         .startup = rx51_startup,
134         .hw_params = rx51_hw_params,
135 };
136
137 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
138                         struct snd_ctl_elem_value *ucontrol)
139 {
140         ucontrol->value.integer.value[0] = rx51_spk_func;
141
142         return 0;
143 }
144
145 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
146                         struct snd_ctl_elem_value *ucontrol)
147 {
148         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
149
150         if (rx51_spk_func == ucontrol->value.integer.value[0])
151                 return 0;
152
153         rx51_spk_func = ucontrol->value.integer.value[0];
154         rx51_ext_control(codec);
155
156         return 1;
157 }
158
159 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
160                           struct snd_kcontrol *k, int event)
161 {
162         if (SND_SOC_DAPM_EVENT_ON(event))
163                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
164         else
165                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);
166
167         return 0;
168 }
169
170 static int rx51_hp_event(struct snd_soc_dapm_widget *w,
171                          struct snd_kcontrol *k, int event)
172 {
173         struct snd_soc_codec *codec = w->dapm->codec;
174
175         if (SND_SOC_DAPM_EVENT_ON(event))
176                 tpa6130a2_stereo_enable(codec, 1);
177         else
178                 tpa6130a2_stereo_enable(codec, 0);
179
180         return 0;
181 }
182
183 static int rx51_get_input(struct snd_kcontrol *kcontrol,
184                           struct snd_ctl_elem_value *ucontrol)
185 {
186         ucontrol->value.integer.value[0] = rx51_dmic_func;
187
188         return 0;
189 }
190
191 static int rx51_set_input(struct snd_kcontrol *kcontrol,
192                           struct snd_ctl_elem_value *ucontrol)
193 {
194         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
195
196         if (rx51_dmic_func == ucontrol->value.integer.value[0])
197                 return 0;
198
199         rx51_dmic_func = ucontrol->value.integer.value[0];
200         rx51_ext_control(codec);
201
202         return 1;
203 }
204
205 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
206                          struct snd_ctl_elem_value *ucontrol)
207 {
208         ucontrol->value.integer.value[0] = rx51_jack_func;
209
210         return 0;
211 }
212
213 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
214                          struct snd_ctl_elem_value *ucontrol)
215 {
216         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
217
218         if (rx51_jack_func == ucontrol->value.integer.value[0])
219                 return 0;
220
221         rx51_jack_func = ucontrol->value.integer.value[0];
222         rx51_ext_control(codec);
223
224         return 1;
225 }
226
227 static struct snd_soc_jack rx51_av_jack;
228
229 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
230         {
231                 .gpio = RX51_JACK_DETECT_GPIO,
232                 .name = "avdet-gpio",
233                 .report = SND_JACK_VIDEOOUT,
234                 .invert = 1,
235                 .debounce_time = 200,
236         },
237 };
238
239 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
240         SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
241         SND_SOC_DAPM_MIC("DMic", NULL),
242         SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event),
243 };
244
245 static const struct snd_soc_dapm_route audio_map[] = {
246         {"Ext Spk", NULL, "HPLOUT"},
247         {"Ext Spk", NULL, "HPROUT"},
248         {"Headphone Jack", NULL, "LLOUT"},
249         {"Headphone Jack", NULL, "RLOUT"},
250
251         {"DMic Rate 64", NULL, "Mic Bias 2V"},
252         {"Mic Bias 2V", NULL, "DMic"},
253 };
254
255 static const char *spk_function[] = {"Off", "On"};
256 static const char *input_function[] = {"ADC", "Digital Mic"};
257 static const char *jack_function[] = {"Off", "TV-OUT", "Headphone"};
258
259 static const struct soc_enum rx51_enum[] = {
260         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
261         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
262         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
263 };
264
265 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
266         SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
267                      rx51_get_spk, rx51_set_spk),
268         SOC_ENUM_EXT("Input Select",  rx51_enum[1],
269                      rx51_get_input, rx51_set_input),
270         SOC_ENUM_EXT("Jack Function", rx51_enum[2],
271                      rx51_get_jack, rx51_set_jack),
272 };
273
274 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
275 {
276         struct snd_soc_codec *codec = rtd->codec;
277         struct snd_soc_dapm_context *dapm = &codec->dapm;
278         int err;
279
280         /* Set up NC codec pins */
281         snd_soc_dapm_nc_pin(dapm, "MIC3L");
282         snd_soc_dapm_nc_pin(dapm, "MIC3R");
283         snd_soc_dapm_nc_pin(dapm, "LINE1R");
284
285         /* Add RX-51 specific controls */
286         err = snd_soc_add_controls(codec, aic34_rx51_controls,
287                                    ARRAY_SIZE(aic34_rx51_controls));
288         if (err < 0)
289                 return err;
290
291         /* Add RX-51 specific widgets */
292         snd_soc_dapm_new_controls(dapm, aic34_dapm_widgets,
293                                   ARRAY_SIZE(aic34_dapm_widgets));
294
295         /* Set up RX-51 specific audio path audio_map */
296         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
297
298         err = tpa6130a2_add_controls(codec);
299         if (err < 0)
300                 return err;
301         snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);
302
303         snd_soc_dapm_sync(dapm);
304
305         /* AV jack detection */
306         err = snd_soc_jack_new(codec, "AV Jack",
307                                SND_JACK_VIDEOOUT, &rx51_av_jack);
308         if (err)
309                 return err;
310         err = snd_soc_jack_add_gpios(&rx51_av_jack,
311                                      ARRAY_SIZE(rx51_av_jack_gpios),
312                                      rx51_av_jack_gpios);
313
314         return err;
315 }
316
317 /* Digital audio interface glue - connects codec <--> CPU */
318 static struct snd_soc_dai_link rx51_dai[] = {
319         {
320                 .name = "TLV320AIC34",
321                 .stream_name = "AIC34",
322                 .cpu_dai_name = "omap-mcbsp-dai.1",
323                 .codec_dai_name = "tlv320aic3x-hifi",
324                 .platform_name = "omap-pcm-audio",
325                 .codec_name = "tlv320aic3x-codec.2-0018",
326                 .init = rx51_aic34_init,
327                 .ops = &rx51_ops,
328         },
329 };
330
331 /* Audio card */
332 static struct snd_soc_card rx51_sound_card = {
333         .name = "RX-51",
334         .dai_link = rx51_dai,
335         .num_links = ARRAY_SIZE(rx51_dai),
336 };
337
338 static struct platform_device *rx51_snd_device;
339
340 static int __init rx51_soc_init(void)
341 {
342         int err;
343
344         if (!machine_is_nokia_rx51())
345                 return -ENODEV;
346
347         err = gpio_request(RX51_TVOUT_SEL_GPIO, "tvout_sel");
348         if (err)
349                 goto err_gpio_tvout_sel;
350         gpio_direction_output(RX51_TVOUT_SEL_GPIO, 0);
351
352         rx51_snd_device = platform_device_alloc("soc-audio", -1);
353         if (!rx51_snd_device) {
354                 err = -ENOMEM;
355                 goto err1;
356         }
357
358         platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
359
360         err = platform_device_add(rx51_snd_device);
361         if (err)
362                 goto err2;
363
364         return 0;
365 err2:
366         platform_device_put(rx51_snd_device);
367 err1:
368         gpio_free(RX51_TVOUT_SEL_GPIO);
369 err_gpio_tvout_sel:
370
371         return err;
372 }
373
374 static void __exit rx51_soc_exit(void)
375 {
376         snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
377                                 rx51_av_jack_gpios);
378
379         platform_device_unregister(rx51_snd_device);
380         gpio_free(RX51_TVOUT_SEL_GPIO);
381 }
382
383 module_init(rx51_soc_init);
384 module_exit(rx51_soc_exit);
385
386 MODULE_AUTHOR("Nokia Corporation");
387 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
388 MODULE_LICENSE("GPL");