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 <sound/soc-dapm.h>
  34 #include <plat/mcbsp.h>
  35
  36 #include <asm/mach-types.h>
  37
  38 #include "omap-mcbsp.h"
  39 #include "omap-pcm.h"
  40 #include "../codecs/tlv320aic3x.h"
  41
  42 #define RX51_TVOUT_SEL_GPIO             40
  43 #define RX51_JACK_DETECT_GPIO           177
  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 */
  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
  63         if (rx51_spk_func)
  64                 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
  65         else
  66                 snd_soc_dapm_disable_pin(dapm, "Ext Spk");
  67         if (rx51_dmic_func)
  68                 snd_soc_dapm_enable_pin(dapm, "DMic");
  69         else
  70                 snd_soc_dapm_disable_pin(dapm, "DMic");
  71
  72         gpio_set_value(RX51_TVOUT_SEL_GPIO,
  73                        rx51_jack_func == RX51_JACK_TVOUT);
  74
  75         snd_soc_dapm_sync(dapm);
  76 }
  77
  78 static int rx51_startup(struct snd_pcm_substream *substream)
  79 {
  80         struct snd_pcm_runtime *runtime = substream->runtime;
  81         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  82         struct snd_soc_codec *codec = rtd->codec;
  83
  84         snd_pcm_hw_constraint_minmax(runtime,
  85                                      SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
  86         rx51_ext_control(codec);
  87
  88         return 0;
  89 }
  90
  91 static int rx51_hw_params(struct snd_pcm_substream *substream,
  92         struct snd_pcm_hw_params *params)
  93 {
  94         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  95         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  96         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  97         int err;
  98
  99         /* Set codec DAI configuration */
 100         err = snd_soc_dai_set_fmt(codec_dai,
 101                                   SND_SOC_DAIFMT_DSP_A |
 102                                   SND_SOC_DAIFMT_IB_NF |
 103                                   SND_SOC_DAIFMT_CBM_CFM);
 104         if (err < 0)
 105                 return err;
 106
 107         /* Set cpu DAI configuration */
 108         err = snd_soc_dai_set_fmt(cpu_dai,
 109                                   SND_SOC_DAIFMT_DSP_A |
 110                                   SND_SOC_DAIFMT_IB_NF |
 111                                   SND_SOC_DAIFMT_CBM_CFM);
 112         if (err < 0)
 113                 return err;
 114
 115         /* Set the codec system clock for DAC and ADC */
 116         return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
 117                                       SND_SOC_CLOCK_IN);
 118 }
 119
 120 static struct snd_soc_ops rx51_ops = {
 121         .startup = rx51_startup,
 122         .hw_params = rx51_hw_params,
 123 };
 124
 125 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
 126                         struct snd_ctl_elem_value *ucontrol)
 127 {
 128         ucontrol->value.integer.value[0] = rx51_spk_func;
 129
 130         return 0;
 131 }
 132
 133 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
 134                         struct snd_ctl_elem_value *ucontrol)
 135 {
 136         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 137
 138         if (rx51_spk_func == ucontrol->value.integer.value[0])
 139                 return 0;
 140
 141         rx51_spk_func = ucontrol->value.integer.value[0];
 142         rx51_ext_control(codec);
 143
 144         return 1;
 145 }
 146
 147 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
 148                           struct snd_kcontrol *k, int event)
 149 {
 150         if (SND_SOC_DAPM_EVENT_ON(event))
 151                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
 152         else
 153                 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);
 154
 155         return 0;
 156 }
 157
 158 static int rx51_get_input(struct snd_kcontrol *kcontrol,
 159                           struct snd_ctl_elem_value *ucontrol)
 160 {
 161         ucontrol->value.integer.value[0] = rx51_dmic_func;
 162
 163         return 0;
 164 }
 165
 166 static int rx51_set_input(struct snd_kcontrol *kcontrol,
 167                           struct snd_ctl_elem_value *ucontrol)
 168 {
 169         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 170
 171         if (rx51_dmic_func == ucontrol->value.integer.value[0])
 172                 return 0;
 173
 174         rx51_dmic_func = ucontrol->value.integer.value[0];
 175         rx51_ext_control(codec);
 176
 177         return 1;
 178 }
 179
 180 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
 181                          struct snd_ctl_elem_value *ucontrol)
 182 {
 183         ucontrol->value.integer.value[0] = rx51_jack_func;
 184
 185         return 0;
 186 }
 187
 188 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
 189                          struct snd_ctl_elem_value *ucontrol)
 190 {
 191         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
 192
 193         if (rx51_jack_func == ucontrol->value.integer.value[0])
 194                 return 0;
 195
 196         rx51_jack_func = ucontrol->value.integer.value[0];
 197         rx51_ext_control(codec);
 198
 199         return 1;
 200 }
 201
 202 static struct snd_soc_jack rx51_av_jack;
 203
 204 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
 205         {
 206                 .gpio = RX51_JACK_DETECT_GPIO,
 207                 .name = "avdet-gpio",
 208                 .report = SND_JACK_VIDEOOUT,
 209                 .invert = 1,
 210                 .debounce_time = 200,
 211         },
 212 };
 213
 214 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
 215         SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
 216         SND_SOC_DAPM_MIC("DMic", NULL),
 217 };
 218
 219 static const struct snd_soc_dapm_route audio_map[] = {
 220         {"Ext Spk", NULL, "HPLOUT"},
 221         {"Ext Spk", NULL, "HPROUT"},
 222
 223         {"DMic Rate 64", NULL, "Mic Bias 2V"},
 224         {"Mic Bias 2V", NULL, "DMic"},
 225 };
 226
 227 static const char *spk_function[] = {"Off", "On"};
 228 static const char *input_function[] = {"ADC", "Digital Mic"};
 229 static const char *jack_function[] = {"Off", "TV-OUT"};
 230
 231 static const struct soc_enum rx51_enum[] = {
 232         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
 233         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
 234         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
 235 };
 236
 237 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
 238         SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
 239                      rx51_get_spk, rx51_set_spk),
 240         SOC_ENUM_EXT("Input Select",  rx51_enum[1],
 241                      rx51_get_input, rx51_set_input),
 242         SOC_ENUM_EXT("Jack Function", rx51_enum[2],
 243                      rx51_get_jack, rx51_set_jack),
 244 };
 245
 246 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
 247 {
 248         struct snd_soc_codec *codec = rtd->codec;
 249         struct snd_soc_dapm_context *dapm = &codec->dapm;
 250         int err;
 251
 252         /* Set up NC codec pins */
 253         snd_soc_dapm_nc_pin(dapm, "MIC3L");
 254         snd_soc_dapm_nc_pin(dapm, "MIC3R");
 255         snd_soc_dapm_nc_pin(dapm, "LINE1R");
 256
 257         /* Add RX-51 specific controls */
 258         err = snd_soc_add_controls(codec, aic34_rx51_controls,
 259                                    ARRAY_SIZE(aic34_rx51_controls));
 260         if (err < 0)
 261                 return err;
 262
 263         /* Add RX-51 specific widgets */
 264         snd_soc_dapm_new_controls(dapm, aic34_dapm_widgets,
 265                                   ARRAY_SIZE(aic34_dapm_widgets));
 266
 267         /* Set up RX-51 specific audio path audio_map */
 268         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 269
 270         snd_soc_dapm_sync(dapm);
 271
 272         /* AV jack detection */
 273         err = snd_soc_jack_new(codec, "AV Jack",
 274                                SND_JACK_VIDEOOUT, &rx51_av_jack);
 275         if (err)
 276                 return err;
 277         err = snd_soc_jack_add_gpios(&rx51_av_jack,
 278                                      ARRAY_SIZE(rx51_av_jack_gpios),
 279                                      rx51_av_jack_gpios);
 280
 281         return err;
 282 }
 283
 284 /* Digital audio interface glue - connects codec <--> CPU */
 285 static struct snd_soc_dai_link rx51_dai[] = {
 286         {
 287                 .name = "TLV320AIC34",
 288                 .stream_name = "AIC34",
 289                 .cpu_dai_name = "omap-mcbsp-dai.1",
 290                 .codec_dai_name = "tlv320aic3x-hifi",
 291                 .platform_name = "omap-pcm-audio",
 292                 .codec_name = "tlv320aic3x-codec.2-0018",
 293                 .init = rx51_aic34_init,
 294                 .ops = &rx51_ops,
 295         },
 296 };
 297
 298 /* Audio card */
 299 static struct snd_soc_card rx51_sound_card = {
 300         .name = "RX-51",
 301         .dai_link = rx51_dai,
 302         .num_links = ARRAY_SIZE(rx51_dai),
 303 };
 304
 305 static struct platform_device *rx51_snd_device;
 306
 307 static int __init rx51_soc_init(void)
 308 {
 309         int err;
 310
 311         if (!machine_is_nokia_rx51())
 312                 return -ENODEV;
 313
 314         err = gpio_request(RX51_TVOUT_SEL_GPIO, "tvout_sel");
 315         if (err)
 316                 goto err_gpio_tvout_sel;
 317         gpio_direction_output(RX51_TVOUT_SEL_GPIO, 0);
 318
 319         rx51_snd_device = platform_device_alloc("soc-audio", -1);
 320         if (!rx51_snd_device) {
 321                 err = -ENOMEM;
 322                 goto err1;
 323         }
 324
 325         platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
 326
 327         err = platform_device_add(rx51_snd_device);
 328         if (err)
 329                 goto err2;
 330
 331         return 0;
 332 err2:
 333         platform_device_put(rx51_snd_device);
 334 err1:
 335         gpio_free(RX51_TVOUT_SEL_GPIO);
 336 err_gpio_tvout_sel:
 337
 338         return err;
 339 }
 340
 341 static void __exit rx51_soc_exit(void)
 342 {
 343         snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
 344                                 rx51_av_jack_gpios);
 345
 346         platform_device_unregister(rx51_snd_device);
 347         gpio_free(RX51_TVOUT_SEL_GPIO);
 348 }
 349
 350 module_init(rx51_soc_init);
 351 module_exit(rx51_soc_exit);
 352
 353 MODULE_AUTHOR("Nokia Corporation");
 354 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
 355 MODULE_LICENSE("GPL");