sound/soc/omap/sdp3430.c

   1 /*
   2  * sdp3430.c  --  SoC audio for TI OMAP3430 SDP
   3  *
   4  * Author: Misael Lopez Cruz <x0052729@ti.com>
   5  *
   6  * Based on:
   7  * Author: Steve Sakoman <steve@sakoman.com>
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * version 2 as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  21  * 02110-1301 USA
  22  *
  23  */
  24
  25 #include <linux/clk.h>
  26 #include <linux/platform_device.h>
  27 #include <linux/i2c/twl4030.h>
  28 #include <sound/core.h>
  29 #include <sound/pcm.h>
  30 #include <sound/soc.h>
  31 #include <sound/soc-dapm.h>
  32 #include <sound/jack.h>
  33
  34 #include <asm/mach-types.h>
  35 #include <mach/hardware.h>
  36 #include <mach/gpio.h>
  37 #include <mach/mcbsp.h>
  38
  39 #include "omap-mcbsp.h"
  40 #include "omap-pcm.h"
  41 #include "../codecs/twl4030.h"
  42
  43 #define TWL4030_INTBR_PMBR1     0x0D
  44 #define EXTMUTE(value)          (value << 2)
  45
  46 static struct snd_soc_card snd_soc_sdp3430;
  47
  48 static int sdp3430_hw_params(struct snd_pcm_substream *substream,
  49         struct snd_pcm_hw_params *params)
  50 {
  51         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  52         struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
  53         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
  54         int ret;
  55
  56         /* Set codec DAI configuration */
  57         ret = snd_soc_dai_set_fmt(codec_dai,
  58                                   SND_SOC_DAIFMT_I2S |
  59                                   SND_SOC_DAIFMT_NB_NF |
  60                                   SND_SOC_DAIFMT_CBM_CFM);
  61         if (ret < 0) {
  62                 printk(KERN_ERR "can't set codec DAI configuration\n");
  63                 return ret;
  64         }
  65
  66         /* Set cpu DAI configuration */
  67         ret = snd_soc_dai_set_fmt(cpu_dai,
  68                                   SND_SOC_DAIFMT_I2S |
  69                                   SND_SOC_DAIFMT_NB_NF |
  70                                   SND_SOC_DAIFMT_CBM_CFM);
  71         if (ret < 0) {
  72                 printk(KERN_ERR "can't set cpu DAI configuration\n");
  73                 return ret;
  74         }
  75
  76         /* Set the codec system clock for DAC and ADC */
  77         ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
  78                                             SND_SOC_CLOCK_IN);
  79         if (ret < 0) {
  80                 printk(KERN_ERR "can't set codec system clock\n");
  81                 return ret;
  82         }
  83
  84         return 0;
  85 }
  86
  87 static struct snd_soc_ops sdp3430_ops = {
  88         .hw_params = sdp3430_hw_params,
  89 };
  90
  91 static int sdp3430_hw_voice_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->dai->codec_dai;
  96         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
  97         int ret;
  98
  99         /* Set codec DAI configuration */
 100         ret = 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 (ret) {
 105                 printk(KERN_ERR "can't set codec DAI configuration\n");
 106                 return ret;
 107         }
 108
 109         /* Set cpu DAI configuration */
 110         ret = snd_soc_dai_set_fmt(cpu_dai,
 111                                 SND_SOC_DAIFMT_DSP_A |
 112                                 SND_SOC_DAIFMT_IB_NF |
 113                                 SND_SOC_DAIFMT_CBM_CFM);
 114         if (ret < 0) {
 115                 printk(KERN_ERR "can't set cpu DAI configuration\n");
 116                 return ret;
 117         }
 118
 119         /* Set the codec system clock for DAC and ADC */
 120         ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
 121                                             SND_SOC_CLOCK_IN);
 122         if (ret < 0) {
 123                 printk(KERN_ERR "can't set codec system clock\n");
 124                 return ret;
 125         }
 126
 127         return 0;
 128 }
 129
 130 static struct snd_soc_ops sdp3430_voice_ops = {
 131         .hw_params = sdp3430_hw_voice_params,
 132 };
 133
 134 /* Headset jack */
 135 static struct snd_soc_jack hs_jack;
 136
 137 /* Headset jack detection DAPM pins */
 138 static struct snd_soc_jack_pin hs_jack_pins[] = {
 139         {
 140                 .pin = "Headset Mic",
 141                 .mask = SND_JACK_MICROPHONE,
 142         },
 143         {
 144                 .pin = "Headset Stereophone",
 145                 .mask = SND_JACK_HEADPHONE,
 146         },
 147 };
 148
 149 /* Headset jack detection gpios */
 150 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
 151         {
 152                 .gpio = (OMAP_MAX_GPIO_LINES + 2),
 153                 .name = "hsdet-gpio",
 154                 .report = SND_JACK_HEADSET,
 155                 .debounce_time = 200,
 156         },
 157 };
 158
 159 /* SDP3430 machine DAPM */
 160 static const struct snd_soc_dapm_widget sdp3430_twl4030_dapm_widgets[] = {
 161         SND_SOC_DAPM_MIC("Ext Mic", NULL),
 162         SND_SOC_DAPM_SPK("Ext Spk", NULL),
 163         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 164         SND_SOC_DAPM_HP("Headset Stereophone", NULL),
 165 };
 166
 167 static const struct snd_soc_dapm_route audio_map[] = {
 168         /* External Mics: MAINMIC, SUBMIC with bias*/
 169         {"MAINMIC", NULL, "Mic Bias 1"},
 170         {"SUBMIC", NULL, "Mic Bias 2"},
 171         {"Mic Bias 1", NULL, "Ext Mic"},
 172         {"Mic Bias 2", NULL, "Ext Mic"},
 173
 174         /* External Speakers: HFL, HFR */
 175         {"Ext Spk", NULL, "HFL"},
 176         {"Ext Spk", NULL, "HFR"},
 177
 178         /* Headset Mic: HSMIC with bias */
 179         {"HSMIC", NULL, "Headset Mic Bias"},
 180         {"Headset Mic Bias", NULL, "Headset Mic"},
 181
 182         /* Headset Stereophone (Headphone): HSOL, HSOR */
 183         {"Headset Stereophone", NULL, "HSOL"},
 184         {"Headset Stereophone", NULL, "HSOR"},
 185 };
 186
 187 static int sdp3430_twl4030_init(struct snd_soc_codec *codec)
 188 {
 189         int ret;
 190
 191         /* Add SDP3430 specific widgets */
 192         ret = snd_soc_dapm_new_controls(codec, sdp3430_twl4030_dapm_widgets,
 193                                 ARRAY_SIZE(sdp3430_twl4030_dapm_widgets));
 194         if (ret)
 195                 return ret;
 196
 197         /* Set up SDP3430 specific audio path audio_map */
 198         snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
 199
 200         /* SDP3430 connected pins */
 201         snd_soc_dapm_enable_pin(codec, "Ext Mic");
 202         snd_soc_dapm_enable_pin(codec, "Ext Spk");
 203         snd_soc_dapm_disable_pin(codec, "Headset Mic");
 204         snd_soc_dapm_disable_pin(codec, "Headset Stereophone");
 205
 206         /* TWL4030 not connected pins */
 207         snd_soc_dapm_nc_pin(codec, "AUXL");
 208         snd_soc_dapm_nc_pin(codec, "AUXR");
 209         snd_soc_dapm_nc_pin(codec, "CARKITMIC");
 210         snd_soc_dapm_nc_pin(codec, "DIGIMIC0");
 211         snd_soc_dapm_nc_pin(codec, "DIGIMIC1");
 212
 213         snd_soc_dapm_nc_pin(codec, "OUTL");
 214         snd_soc_dapm_nc_pin(codec, "OUTR");
 215         snd_soc_dapm_nc_pin(codec, "EARPIECE");
 216         snd_soc_dapm_nc_pin(codec, "PREDRIVEL");
 217         snd_soc_dapm_nc_pin(codec, "PREDRIVER");
 218         snd_soc_dapm_nc_pin(codec, "CARKITL");
 219         snd_soc_dapm_nc_pin(codec, "CARKITR");
 220
 221         ret = snd_soc_dapm_sync(codec);
 222         if (ret)
 223                 return ret;
 224
 225         /* Headset jack detection */
 226         ret = snd_soc_jack_new(&snd_soc_sdp3430, "Headset Jack",
 227                                 SND_JACK_HEADSET, &hs_jack);
 228         if (ret)
 229                 return ret;
 230
 231         ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
 232                                 hs_jack_pins);
 233         if (ret)
 234                 return ret;
 235
 236         ret = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
 237                                 hs_jack_gpios);
 238
 239         return ret;
 240 }
 241
 242 static int sdp3430_twl4030_voice_init(struct snd_soc_codec *codec)
 243 {
 244         unsigned short reg;
 245
 246         /* Enable voice interface */
 247         reg = codec->read(codec, TWL4030_REG_VOICE_IF);
 248         reg |= TWL4030_VIF_DIN_EN | TWL4030_VIF_DOUT_EN | TWL4030_VIF_EN;
 249         codec->write(codec, TWL4030_REG_VOICE_IF, reg);
 250
 251         return 0;
 252 }
 253
 254
 255 /* Digital audio interface glue - connects codec <--> CPU */
 256 static struct snd_soc_dai_link sdp3430_dai[] = {
 257         {
 258                 .name = "TWL4030 I2S",
 259                 .stream_name = "TWL4030 Audio",
 260                 .cpu_dai = &omap_mcbsp_dai[0],
 261                 .codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
 262                 .init = sdp3430_twl4030_init,
 263                 .ops = &sdp3430_ops,
 264         },
 265         {
 266                 .name = "TWL4030 PCM",
 267                 .stream_name = "TWL4030 Voice",
 268                 .cpu_dai = &omap_mcbsp_dai[1],
 269                 .codec_dai = &twl4030_dai[TWL4030_DAI_VOICE],
 270                 .init = sdp3430_twl4030_voice_init,
 271                 .ops = &sdp3430_voice_ops,
 272         },
 273 };
 274
 275 /* Audio machine driver */
 276 static struct snd_soc_card snd_soc_sdp3430 = {
 277         .name = "SDP3430",
 278         .platform = &omap_soc_platform,
 279         .dai_link = sdp3430_dai,
 280         .num_links = ARRAY_SIZE(sdp3430_dai),
 281 };
 282
 283 /* twl4030 setup */
 284 static struct twl4030_setup_data twl4030_setup = {
 285         .ramp_delay_value = 3,
 286         .sysclk = 26000,
 287         .hs_extmute = 1,
 288 };
 289
 290 /* Audio subsystem */
 291 static struct snd_soc_device sdp3430_snd_devdata = {
 292         .card = &snd_soc_sdp3430,
 293         .codec_dev = &soc_codec_dev_twl4030,
 294         .codec_data = &twl4030_setup,
 295 };
 296
 297 static struct platform_device *sdp3430_snd_device;
 298
 299 static int __init sdp3430_soc_init(void)
 300 {
 301         int ret;
 302
 303         if (!machine_is_omap_3430sdp()) {
 304                 pr_debug("Not SDP3430!\n");
 305                 return -ENODEV;
 306         }
 307         printk(KERN_INFO "SDP3430 SoC init\n");
 308
 309         sdp3430_snd_device = platform_device_alloc("soc-audio", -1);
 310         if (!sdp3430_snd_device) {
 311                 printk(KERN_ERR "Platform device allocation failed\n");
 312                 return -ENOMEM;
 313         }
 314
 315         platform_set_drvdata(sdp3430_snd_device, &sdp3430_snd_devdata);
 316         sdp3430_snd_devdata.dev = &sdp3430_snd_device->dev;
 317         *(unsigned int *)sdp3430_dai[0].cpu_dai->private_data = 1; /* McBSP2 */
 318         *(unsigned int *)sdp3430_dai[1].cpu_dai->private_data = 2; /* McBSP3 */
 319
 320         /* Set TWL4030 GPIO6 as EXTMUTE signal */
 321         twl4030_i2c_write_u8(TWL4030_MODULE_INTBR, EXTMUTE(0x02),
 322                                                         TWL4030_MODULE_INTBR);
 323
 324         ret = platform_device_add(sdp3430_snd_device);
 325         if (ret)
 326                 goto err1;
 327
 328         return 0;
 329
 330 err1:
 331         printk(KERN_ERR "Unable to add platform device\n");
 332         platform_device_put(sdp3430_snd_device);
 333
 334         return ret;
 335 }
 336 module_init(sdp3430_soc_init);
 337
 338 static void __exit sdp3430_soc_exit(void)
 339 {
 340         snd_soc_jack_free_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
 341                                 hs_jack_gpios);
 342
 343         platform_device_unregister(sdp3430_snd_device);
 344 }
 345 module_exit(sdp3430_soc_exit);
 346
 347 MODULE_AUTHOR("Misael Lopez Cruz <x0052729@ti.com>");
 348 MODULE_DESCRIPTION("ALSA SoC SDP3430");
 349 MODULE_LICENSE("GPL");
 350