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TOMOYO Linux Cross Reference
Linux/sound/soc/omap/rx51.c

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  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@ti.com>
  7  *          Eduardo Valentin <eduardo.valentin@nokia.com>
  8  *          Jarkko Nikula <jarkko.nikula@bitmer.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 <linux/module.h>
 30 #include <sound/core.h>
 31 #include <sound/jack.h>
 32 #include <sound/pcm.h>
 33 #include <sound/soc.h>
 34 #include <linux/platform_data/asoc-ti-mcbsp.h>
 35 #include "../codecs/tpa6130a2.h"
 36 
 37 #include <asm/mach-types.h>
 38 
 39 #include "omap-mcbsp.h"
 40 
 41 #define RX51_TVOUT_SEL_GPIO             40
 42 #define RX51_JACK_DETECT_GPIO           177
 43 #define RX51_ECI_SW_GPIO                182
 44 /*
 45  * REVISIT: TWL4030 GPIO base in RX-51. Now statically defined to 192. This
 46  * gpio is reserved in arch/arm/mach-omap2/board-rx51-peripherals.c
 47  */
 48 #define RX51_SPEAKER_AMP_TWL_GPIO       (192 + 7)
 49 
 50 enum {
 51         RX51_JACK_DISABLED,
 52         RX51_JACK_TVOUT,                /* tv-out with stereo output */
 53         RX51_JACK_HP,                   /* headphone: stereo output, no mic */
 54         RX51_JACK_HS,                   /* headset: stereo output with mic */
 55 };
 56 
 57 static int rx51_spk_func;
 58 static int rx51_dmic_func;
 59 static int rx51_jack_func;
 60 
 61 static void rx51_ext_control(struct snd_soc_dapm_context *dapm)
 62 {
 63         int hp = 0, hs = 0, tvout = 0;
 64 
 65         switch (rx51_jack_func) {
 66         case RX51_JACK_TVOUT:
 67                 tvout = 1;
 68                 hp = 1;
 69                 break;
 70         case RX51_JACK_HS:
 71                 hs = 1;
 72         case RX51_JACK_HP:
 73                 hp = 1;
 74                 break;
 75         }
 76 
 77         if (rx51_spk_func)
 78                 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
 79         else
 80                 snd_soc_dapm_disable_pin(dapm, "Ext Spk");
 81         if (rx51_dmic_func)
 82                 snd_soc_dapm_enable_pin(dapm, "DMic");
 83         else
 84                 snd_soc_dapm_disable_pin(dapm, "DMic");
 85         if (hp)
 86                 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
 87         else
 88                 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
 89         if (hs)
 90                 snd_soc_dapm_enable_pin(dapm, "HS Mic");
 91         else
 92                 snd_soc_dapm_disable_pin(dapm, "HS Mic");
 93 
 94         gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);
 95 
 96         snd_soc_dapm_sync(dapm);
 97 }
 98 
 99 static int rx51_startup(struct snd_pcm_substream *substream)
100 {
101         struct snd_pcm_runtime *runtime = substream->runtime;
102         struct snd_soc_pcm_runtime *rtd = substream->private_data;
103         struct snd_soc_card *card = rtd->card;
104 
105         snd_pcm_hw_constraint_minmax(runtime,
106                                      SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
107         rx51_ext_control(&card->dapm);
108 
109         return 0;
110 }
111 
112 static int rx51_hw_params(struct snd_pcm_substream *substream,
113         struct snd_pcm_hw_params *params)
114 {
115         struct snd_soc_pcm_runtime *rtd = substream->private_data;
116         struct snd_soc_dai *codec_dai = rtd->codec_dai;
117 
118         /* Set the codec system clock for DAC and ADC */
119         return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
120                                       SND_SOC_CLOCK_IN);
121 }
122 
123 static struct snd_soc_ops rx51_ops = {
124         .startup = rx51_startup,
125         .hw_params = rx51_hw_params,
126 };
127 
128 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
129                         struct snd_ctl_elem_value *ucontrol)
130 {
131         ucontrol->value.integer.value[0] = rx51_spk_func;
132 
133         return 0;
134 }
135 
136 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
137                         struct snd_ctl_elem_value *ucontrol)
138 {
139         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
140 
141         if (rx51_spk_func == ucontrol->value.integer.value[0])
142                 return 0;
143 
144         rx51_spk_func = ucontrol->value.integer.value[0];
145         rx51_ext_control(&card->dapm);
146 
147         return 1;
148 }
149 
150 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
151                           struct snd_kcontrol *k, int event)
152 {
153         if (SND_SOC_DAPM_EVENT_ON(event))
154                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
155         else
156                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);
157 
158         return 0;
159 }
160 
161 static int rx51_hp_event(struct snd_soc_dapm_widget *w,
162                          struct snd_kcontrol *k, int event)
163 {
164         struct snd_soc_codec *codec = w->dapm->codec;
165 
166         if (SND_SOC_DAPM_EVENT_ON(event))
167                 tpa6130a2_stereo_enable(codec, 1);
168         else
169                 tpa6130a2_stereo_enable(codec, 0);
170 
171         return 0;
172 }
173 
174 static int rx51_get_input(struct snd_kcontrol *kcontrol,
175                           struct snd_ctl_elem_value *ucontrol)
176 {
177         ucontrol->value.integer.value[0] = rx51_dmic_func;
178 
179         return 0;
180 }
181 
182 static int rx51_set_input(struct snd_kcontrol *kcontrol,
183                           struct snd_ctl_elem_value *ucontrol)
184 {
185         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
186 
187         if (rx51_dmic_func == ucontrol->value.integer.value[0])
188                 return 0;
189 
190         rx51_dmic_func = ucontrol->value.integer.value[0];
191         rx51_ext_control(&card->dapm);
192 
193         return 1;
194 }
195 
196 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
197                          struct snd_ctl_elem_value *ucontrol)
198 {
199         ucontrol->value.integer.value[0] = rx51_jack_func;
200 
201         return 0;
202 }
203 
204 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
205                          struct snd_ctl_elem_value *ucontrol)
206 {
207         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
208 
209         if (rx51_jack_func == ucontrol->value.integer.value[0])
210                 return 0;
211 
212         rx51_jack_func = ucontrol->value.integer.value[0];
213         rx51_ext_control(&card->dapm);
214 
215         return 1;
216 }
217 
218 static struct snd_soc_jack rx51_av_jack;
219 
220 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
221         {
222                 .gpio = RX51_JACK_DETECT_GPIO,
223                 .name = "avdet-gpio",
224                 .report = SND_JACK_HEADSET,
225                 .invert = 1,
226                 .debounce_time = 200,
227         },
228 };
229 
230 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
231         SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
232         SND_SOC_DAPM_MIC("DMic", NULL),
233         SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event),
234         SND_SOC_DAPM_MIC("HS Mic", NULL),
235         SND_SOC_DAPM_LINE("FM Transmitter", NULL),
236 };
237 
238 static const struct snd_soc_dapm_widget aic34_dapm_widgetsb[] = {
239         SND_SOC_DAPM_SPK("Earphone", NULL),
240 };
241 
242 static const struct snd_soc_dapm_route audio_map[] = {
243         {"Ext Spk", NULL, "HPLOUT"},
244         {"Ext Spk", NULL, "HPROUT"},
245         {"Headphone Jack", NULL, "LLOUT"},
246         {"Headphone Jack", NULL, "RLOUT"},
247         {"FM Transmitter", NULL, "LLOUT"},
248         {"FM Transmitter", NULL, "RLOUT"},
249 
250         {"DMic Rate 64", NULL, "Mic Bias"},
251         {"Mic Bias", NULL, "DMic"},
252 };
253 
254 static const struct snd_soc_dapm_route audio_mapb[] = {
255         {"b LINE2R", NULL, "MONO_LOUT"},
256         {"Earphone", NULL, "b HPLOUT"},
257 
258         {"LINE1L", NULL, "b Mic Bias"},
259         {"b Mic Bias", NULL, "HS Mic"}
260 };
261 
262 static const char *spk_function[] = {"Off", "On"};
263 static const char *input_function[] = {"ADC", "Digital Mic"};
264 static const char *jack_function[] = {"Off", "TV-OUT", "Headphone", "Headset"};
265 
266 static const struct soc_enum rx51_enum[] = {
267         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
268         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
269         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
270 };
271 
272 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
273         SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
274                      rx51_get_spk, rx51_set_spk),
275         SOC_ENUM_EXT("Input Select",  rx51_enum[1],
276                      rx51_get_input, rx51_set_input),
277         SOC_ENUM_EXT("Jack Function", rx51_enum[2],
278                      rx51_get_jack, rx51_set_jack),
279         SOC_DAPM_PIN_SWITCH("FM Transmitter"),
280 };
281 
282 static const struct snd_kcontrol_new aic34_rx51_controlsb[] = {
283         SOC_DAPM_PIN_SWITCH("Earphone"),
284 };
285 
286 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
287 {
288         struct snd_soc_codec *codec = rtd->codec;
289         struct snd_soc_dapm_context *dapm = &codec->dapm;
290         int err;
291 
292         /* Set up NC codec pins */
293         snd_soc_dapm_nc_pin(dapm, "MIC3L");
294         snd_soc_dapm_nc_pin(dapm, "MIC3R");
295         snd_soc_dapm_nc_pin(dapm, "LINE1R");
296 
297         /* Add RX-51 specific controls */
298         err = snd_soc_add_card_controls(rtd->card, aic34_rx51_controls,
299                                    ARRAY_SIZE(aic34_rx51_controls));
300         if (err < 0)
301                 return err;
302 
303         /* Add RX-51 specific widgets */
304         snd_soc_dapm_new_controls(dapm, aic34_dapm_widgets,
305                                   ARRAY_SIZE(aic34_dapm_widgets));
306 
307         /* Set up RX-51 specific audio path audio_map */
308         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
309 
310         err = tpa6130a2_add_controls(codec);
311         if (err < 0)
312                 return err;
313         snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);
314 
315         err = omap_mcbsp_st_add_controls(rtd);
316         if (err < 0)
317                 return err;
318 
319         /* AV jack detection */
320         err = snd_soc_jack_new(codec, "AV Jack",
321                                SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
322                                &rx51_av_jack);
323         if (err)
324                 return err;
325         err = snd_soc_jack_add_gpios(&rx51_av_jack,
326                                      ARRAY_SIZE(rx51_av_jack_gpios),
327                                      rx51_av_jack_gpios);
328 
329         return err;
330 }
331 
332 static int rx51_aic34b_init(struct snd_soc_dapm_context *dapm)
333 {
334         int err;
335 
336         err = snd_soc_add_card_controls(dapm->card, aic34_rx51_controlsb,
337                                    ARRAY_SIZE(aic34_rx51_controlsb));
338         if (err < 0)
339                 return err;
340 
341         err = snd_soc_dapm_new_controls(dapm, aic34_dapm_widgetsb,
342                                         ARRAY_SIZE(aic34_dapm_widgetsb));
343         if (err < 0)
344                 return 0;
345 
346         return snd_soc_dapm_add_routes(dapm, audio_mapb,
347                                        ARRAY_SIZE(audio_mapb));
348 }
349 
350 /* Digital audio interface glue - connects codec <--> CPU */
351 static struct snd_soc_dai_link rx51_dai[] = {
352         {
353                 .name = "TLV320AIC34",
354                 .stream_name = "AIC34",
355                 .cpu_dai_name = "omap-mcbsp.2",
356                 .codec_dai_name = "tlv320aic3x-hifi",
357                 .platform_name = "omap-pcm-audio",
358                 .codec_name = "tlv320aic3x-codec.2-0018",
359                 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF |
360                            SND_SOC_DAIFMT_CBM_CFM,
361                 .init = rx51_aic34_init,
362                 .ops = &rx51_ops,
363         },
364 };
365 
366 static struct snd_soc_aux_dev rx51_aux_dev[] = {
367         {
368                 .name = "TLV320AIC34b",
369                 .codec_name = "tlv320aic3x-codec.2-0019",
370                 .init = rx51_aic34b_init,
371         },
372 };
373 
374 static struct snd_soc_codec_conf rx51_codec_conf[] = {
375         {
376                 .dev_name = "tlv320aic3x-codec.2-0019",
377                 .name_prefix = "b",
378         },
379 };
380 
381 /* Audio card */
382 static struct snd_soc_card rx51_sound_card = {
383         .name = "RX-51",
384         .owner = THIS_MODULE,
385         .dai_link = rx51_dai,
386         .num_links = ARRAY_SIZE(rx51_dai),
387         .aux_dev = rx51_aux_dev,
388         .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
389         .codec_conf = rx51_codec_conf,
390         .num_configs = ARRAY_SIZE(rx51_codec_conf),
391 };
392 
393 static struct platform_device *rx51_snd_device;
394 
395 static int __init rx51_soc_init(void)
396 {
397         int err;
398 
399         if (!machine_is_nokia_rx51() && !of_machine_is_compatible("nokia,omap3-n900"))
400                 return -ENODEV;
401 
402         err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
403                                GPIOF_DIR_OUT | GPIOF_INIT_LOW, "tvout_sel");
404         if (err)
405                 goto err_gpio_tvout_sel;
406         err = gpio_request_one(RX51_ECI_SW_GPIO,
407                                GPIOF_DIR_OUT | GPIOF_INIT_HIGH, "eci_sw");
408         if (err)
409                 goto err_gpio_eci_sw;
410 
411         rx51_snd_device = platform_device_alloc("soc-audio", -1);
412         if (!rx51_snd_device) {
413                 err = -ENOMEM;
414                 goto err1;
415         }
416 
417         platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
418 
419         err = platform_device_add(rx51_snd_device);
420         if (err)
421                 goto err2;
422 
423         return 0;
424 err2:
425         platform_device_put(rx51_snd_device);
426 err1:
427         gpio_free(RX51_ECI_SW_GPIO);
428 err_gpio_eci_sw:
429         gpio_free(RX51_TVOUT_SEL_GPIO);
430 err_gpio_tvout_sel:
431 
432         return err;
433 }
434 
435 static void __exit rx51_soc_exit(void)
436 {
437         snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
438                                 rx51_av_jack_gpios);
439 
440         platform_device_unregister(rx51_snd_device);
441         gpio_free(RX51_ECI_SW_GPIO);
442         gpio_free(RX51_TVOUT_SEL_GPIO);
443 }
444 
445 module_init(rx51_soc_init);
446 module_exit(rx51_soc_exit);
447 
448 MODULE_AUTHOR("Nokia Corporation");
449 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
450 MODULE_LICENSE("GPL");
451 

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