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
  35 #include <asm/mach-types.h>
  36
  37 #include "omap-mcbsp.h"
  38 #include "omap-pcm.h"
  39 #include "../codecs/tlv320aic3x.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 */
  52 };
  53
  54 static int rx51_spk_func;
  55 static int rx51_dmic_func;
  56 static int rx51_jack_func;
  57
  58 static void rx51_ext_control(struct snd_soc_codec *codec)
  59 {
  60         struct snd_soc_dapm_context *dapm = &codec->dapm;
  61
  62         if (rx51_spk_func)
  63                 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
  64         else
  65                 snd_soc_dapm_disable_pin(dapm, "Ext Spk");
  66         if (rx51_dmic_func)
  67                 snd_soc_dapm_enable_pin(dapm, "DMic");
  68         else
  69                 snd_soc_dapm_disable_pin(dapm, "DMic");
  70
  71         gpio_set_value(RX51_TVOUT_SEL_GPIO,
  72                        rx51_jack_func == RX51_JACK_TVOUT);
  73
  74         snd_soc_dapm_sync(dapm);
  75 }
  76
  77 static int rx51_startup(struct snd_pcm_substream *substream)
  78 {
  79         struct snd_pcm_runtime *runtime = substream->runtime;
  80         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  81         struct snd_soc_codec *codec = rtd->codec;
  82
  83         snd_pcm_hw_constraint_minmax(runtime,
  84                                      SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
  85         rx51_ext_control(codec);
  86
  87         return 0;
  88 }
  89
  90 static int rx51_hw_params(struct snd_pcm_substream *substream,
  91         struct snd_pcm_hw_params *params)
  92 {
  93         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  94         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  95         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  96         int err;
  97
  98         /* Set codec DAI configuration */
  99         err = snd_soc_dai_set_fmt(codec_dai,
 100                                   SND_SOC_DAIFMT_DSP_A |
 101                                   SND_SOC_DAIFMT_IB_NF |
 102                                   SND_SOC_DAIFMT_CBM_CFM);
 103         if (err < 0)
 104                 return err;
 105
 106         /* Set cpu DAI configuration */
 107         err = snd_soc_dai_set_fmt(cpu_dai,
 108                                   SND_SOC_DAIFMT_DSP_A |
 109                                   SND_SOC_DAIFMT_IB_NF |
 110                                   SND_SOC_DAIFMT_CBM_CFM);
 111         if (err < 0)
 112                 return err;
 113
 114         /* Set the codec system clock for DAC and ADC */
 115         return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
 116                                       SND_SOC_CLOCK_IN);
 117 }
 118
 119 static struct snd_soc_ops rx51_ops = {
 120         .startup = rx51_startup,
 121         .hw_params = rx51_hw_params,
 122 };
 123
 124 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
 125                         struct snd_ctl_elem_value *ucontrol)
 126 {
 127         ucontrol->value.integer.value[0] = rx51_spk_func;
 128
 129         return 0;
 130 }
 131
 132 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
 133                         struct snd_ctl_elem_value *ucontrol)
 134 {
 135         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 136
 137         if (rx51_spk_func == ucontrol->value.integer.value[0])
 138                 return 0;
 139
 140         rx51_spk_func = ucontrol->value.integer.value[0];
 141         rx51_ext_control(codec);
 142
 143         return 1;
 144 }
 145
 146 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
 147                           struct snd_kcontrol *k, int event)
 148 {
 149         if (SND_SOC_DAPM_EVENT_ON(event))
 150                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
 151         else
 152                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);
 153
 154         return 0;
 155 }
 156
 157 static int rx51_get_input(struct snd_kcontrol *kcontrol,
 158                           struct snd_ctl_elem_value *ucontrol)
 159 {
 160         ucontrol->value.integer.value[0] = rx51_dmic_func;
 161
 162         return 0;
 163 }
 164
 165 static int rx51_set_input(struct snd_kcontrol *kcontrol,
 166                           struct snd_ctl_elem_value *ucontrol)
 167 {
 168         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 169
 170         if (rx51_dmic_func == ucontrol->value.integer.value[0])
 171                 return 0;
 172
 173         rx51_dmic_func = ucontrol->value.integer.value[0];
 174         rx51_ext_control(codec);
 175
 176         return 1;
 177 }
 178
 179 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
 180                          struct snd_ctl_elem_value *ucontrol)
 181 {
 182         ucontrol->value.integer.value[0] = rx51_jack_func;
 183
 184         return 0;
 185 }
 186
 187 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
 188                          struct snd_ctl_elem_value *ucontrol)
 189 {
 190         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 191
 192         if (rx51_jack_func == ucontrol->value.integer.value[0])
 193                 return 0;
 194
 195         rx51_jack_func = ucontrol->value.integer.value[0];
 196         rx51_ext_control(codec);
 197
 198         return 1;
 199 }
 200
 201 static struct snd_soc_jack rx51_av_jack;
 202
 203 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
 204         {
 205                 .gpio = RX51_JACK_DETECT_GPIO,
 206                 .name = "avdet-gpio",
 207                 .report = SND_JACK_VIDEOOUT,
 208                 .invert = 1,
 209                 .debounce_time = 200,
 210         },
 211 };
 212
 213 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
 214         SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
 215         SND_SOC_DAPM_MIC("DMic", NULL),
 216 };
 217
 218 static const struct snd_soc_dapm_route audio_map[] = {
 219         {"Ext Spk", NULL, "HPLOUT"},
 220         {"Ext Spk", NULL, "HPROUT"},
 221
 222         {"DMic Rate 64", NULL, "Mic Bias 2V"},
 223         {"Mic Bias 2V", NULL, "DMic"},
 224 };
 225
 226 static const char *spk_function[] = {"Off", "On"};
 227 static const char *input_function[] = {"ADC", "Digital Mic"};
 228 static const char *jack_function[] = {"Off", "TV-OUT"};
 229
 230 static const struct soc_enum rx51_enum[] = {
 231         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
 232         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
 233         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
 234 };
 235
 236 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
 237         SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
 238                      rx51_get_spk, rx51_set_spk),
 239         SOC_ENUM_EXT("Input Select",  rx51_enum[1],
 240                      rx51_get_input, rx51_set_input),
 241         SOC_ENUM_EXT("Jack Function", rx51_enum[2],
 242                      rx51_get_jack, rx51_set_jack),
 243 };
 244
 245 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
 246 {
 247         struct snd_soc_codec *codec = rtd->codec;
 248         struct snd_soc_dapm_context *dapm = &codec->dapm;
 249         int err;
 250
 251         /* Set up NC codec pins */
 252         snd_soc_dapm_nc_pin(dapm, "MIC3L");
 253         snd_soc_dapm_nc_pin(dapm, "MIC3R");
 254         snd_soc_dapm_nc_pin(dapm, "LINE1R");
 255
 256         /* Add RX-51 specific controls */
 257         err = snd_soc_add_controls(codec, aic34_rx51_controls,
 258                                    ARRAY_SIZE(aic34_rx51_controls));
 259         if (err < 0)
 260                 return err;
 261
 262         /* Add RX-51 specific widgets */
 263         snd_soc_dapm_new_controls(dapm, aic34_dapm_widgets,
 264                                   ARRAY_SIZE(aic34_dapm_widgets));
 265
 266         /* Set up RX-51 specific audio path audio_map */
 267         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 268
 269         snd_soc_dapm_sync(dapm);
 270
 271         /* AV jack detection */
 272         err = snd_soc_jack_new(codec, "AV Jack",
 273                                SND_JACK_VIDEOOUT, &rx51_av_jack);
 274         if (err)
 275                 return err;
 276         err = snd_soc_jack_add_gpios(&rx51_av_jack,
 277                                      ARRAY_SIZE(rx51_av_jack_gpios),
 278                                      rx51_av_jack_gpios);
 279
 280         return err;
 281 }
 282
 283 /* Digital audio interface glue - connects codec <--> CPU */
 284 static struct snd_soc_dai_link rx51_dai[] = {
 285         {
 286                 .name = "TLV320AIC34",
 287                 .stream_name = "AIC34",
 288                 .cpu_dai_name = "omap-mcbsp-dai.1",
 289                 .codec_dai_name = "tlv320aic3x-hifi",
 290                 .platform_name = "omap-pcm-audio",
 291                 .codec_name = "tlv320aic3x-codec.2-0018",
 292                 .init = rx51_aic34_init,
 293                 .ops = &rx51_ops,
 294         },
 295 };
 296
 297 /* Audio card */
 298 static struct snd_soc_card rx51_sound_card = {
 299         .name = "RX-51",
 300         .dai_link = rx51_dai,
 301         .num_links = ARRAY_SIZE(rx51_dai),
 302 };
 303
 304 static struct platform_device *rx51_snd_device;
 305
 306 static int __init rx51_soc_init(void)
 307 {
 308         int err;
 309
 310         if (!machine_is_nokia_rx51())
 311                 return -ENODEV;
 312
 313         err = gpio_request(RX51_TVOUT_SEL_GPIO, "tvout_sel");
 314         if (err)
 315                 goto err_gpio_tvout_sel;
 316         gpio_direction_output(RX51_TVOUT_SEL_GPIO, 0);
 317
 318         rx51_snd_device = platform_device_alloc("soc-audio", -1);
 319         if (!rx51_snd_device) {
 320                 err = -ENOMEM;
 321                 goto err1;
 322         }
 323
 324         platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
 325
 326         err = platform_device_add(rx51_snd_device);
 327         if (err)
 328                 goto err2;
 329
 330         return 0;
 331 err2:
 332         platform_device_put(rx51_snd_device);
 333 err1:
 334         gpio_free(RX51_TVOUT_SEL_GPIO);
 335 err_gpio_tvout_sel:
 336
 337         return err;
 338 }
 339
 340 static void __exit rx51_soc_exit(void)
 341 {
 342         snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
 343                                 rx51_av_jack_gpios);
 344
 345         platform_device_unregister(rx51_snd_device);
 346         gpio_free(RX51_TVOUT_SEL_GPIO);
 347 }
 348
 349 module_init(rx51_soc_init);
 350 module_exit(rx51_soc_exit);
 351
 352 MODULE_AUTHOR("Nokia Corporation");
 353 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
 354 MODULE_LICENSE("GPL");