sound/soc/rockchip/rk_rt3261.c

   1 /*
   2  * rk29_rt3261.c  --  SoC audio for rockchip
   3  *
   4  * Driver for rockchip rt3261 audio
   5  *
   6  *  This program is free software; you can redistribute  it and/or modify it
   7  *  under  the terms of  the GNU General  Public License as published by the
   8  *  Free Software Foundation;  either version 2 of the  License, or (at your
   9  *  option) any later version.
  10  *
  11  *
  12  */
  13
  14 #include <linux/module.h>
  15 #include <linux/device.h>
  16 #include <sound/core.h>
  17 #include <sound/pcm.h>
  18 #include <sound/soc.h>
  19 #include <sound/soc-dapm.h>
  20 #include <asm/io.h>
  21 #include <linux/of.h>
  22 #include <linux/of_gpio.h>
  23
  24 #include "../codecs/rt3261.h"
  25 #include "card_info.h"
  26 #include "rk_pcm.h"
  27 #include "rk_i2s.h"
  28
  29 #if 0
  30 #define DBG(x...)       printk(KERN_INFO x)
  31 #else
  32 #define DBG(x...)
  33 #endif
  34
  35 static int rockchip_rt3261_hifi_hw_params(struct snd_pcm_substream *substream,
  36         struct snd_pcm_hw_params *params)
  37 {
  38         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  39         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  40         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  41         unsigned int pll_out = 0, dai_fmt = rtd->dai_link->dai_fmt;
  42         int ret;
  43
  44         DBG("Enter::%s----%d\n", __FUNCTION__, __LINE__);
  45
  46         /* set codec DAI configuration */
  47         ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt);
  48         if (ret < 0) {
  49                 printk("%s():failed to set the format for codec side\n", __FUNCTION__);
  50                 return ret;
  51         }
  52
  53         /* set cpu DAI configuration */
  54         ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt);
  55         if (ret < 0) {
  56                 printk("%s():failed to set the format for cpu side\n", __FUNCTION__);
  57                 return ret;
  58         }
  59
  60         switch(params_rate(params)) {
  61                 case 8000:
  62                 case 16000:
  63                 case 24000:
  64                 case 32000:
  65                 case 48000:
  66                         pll_out = 12288000;
  67                         break;
  68                 case 11025:
  69                 case 22050:
  70                 case 44100:
  71                         pll_out = 11289600;
  72                         break;
  73                 default:
  74                         DBG("Enter:%s, %d, Error rate=%d\n", __FUNCTION__, __LINE__, params_rate(params));
  75                         return -EINVAL;
  76                         break;
  77         }
  78
  79         DBG("Enter:%s, %d, rate=%d\n", __FUNCTION__, __LINE__, params_rate(params));
  80
  81         /*Set the system clk for codec*/
  82         snd_soc_dai_set_pll(codec_dai, 0, RT3261_PLL1_S_MCLK, pll_out, pll_out*2); //bard 8-29
  83         ret = snd_soc_dai_set_sysclk(codec_dai, RT3261_SCLK_S_PLL1, pll_out*2, SND_SOC_CLOCK_IN); //bard 8-29
  84         if (ret < 0)
  85         {
  86                 DBG("rk29_hw_params_rt3261:failed to set the sysclk for codec side\n");
  87                 return ret;
  88         }
  89
  90         snd_soc_dai_set_sysclk(cpu_dai, 0, pll_out, 0);
  91         snd_soc_dai_set_clkdiv(cpu_dai, ROCKCHIP_DIV_BCLK, (pll_out/4)/params_rate(params)-1);
  92         snd_soc_dai_set_clkdiv(cpu_dai, ROCKCHIP_DIV_MCLK, 3);// 256k = 48-1  3M=3
  93
  94         DBG("Enter:%s, %d, pll_out/4/params_rate(params) = %d \n", __FUNCTION__, __LINE__, (pll_out/4)/params_rate(params));
  95
  96         return 0;
  97 }
  98
  99 static int rockchip_rt3261_voice_hw_params(struct snd_pcm_substream *substream,
 100         struct snd_pcm_hw_params *params)
 101 {
 102         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 103         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 104         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 105         unsigned int pll_out = 0, dai_fmt = rtd->dai_link->dai_fmt;
 106         int ret;
 107
 108         DBG("Enter::%s----%d\n", __FUNCTION__, __LINE__);
 109
 110         /* set codec DAI configuration */
 111         ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt);
 112         if (ret < 0) {
 113                 printk("%s():failed to set the format for codec side\n", __FUNCTION__);
 114                 return ret;
 115         }
 116
 117         switch(params_rate(params)) {
 118                 case 8000:
 119                 case 16000:
 120                 case 24000:
 121                 case 32000:
 122                 case 48000:
 123                         pll_out = 12288000;
 124                         break;
 125                 case 11025:
 126                 case 22050:
 127                 case 44100:
 128                         pll_out = 11289600;
 129                         break;
 130                 default:
 131                         DBG("Enter:%s, %d, Error rate=%d\n", __FUNCTION__, __LINE__, params_rate(params));
 132                         return -EINVAL;
 133                         break;
 134         }
 135
 136         DBG("Enter:%s, %d, rate=%d\n", __FUNCTION__, __LINE__, params_rate(params));
 137
 138         /*Set the system clk for codec*/
 139         snd_soc_dai_set_pll(codec_dai, 0, RT3261_PLL1_S_MCLK, pll_out, pll_out*2); //bard 8-29
 140         ret = snd_soc_dai_set_sysclk(codec_dai, RT3261_SCLK_S_PLL1, pll_out*2, SND_SOC_CLOCK_IN); //bard 8-29
 141
 142
 143         if (ret < 0) {
 144                 printk("rk29_hw_params_rt3261:failed to set the sysclk for codec side\n");
 145                 return ret;
 146         }
 147
 148         snd_soc_dai_set_sysclk(cpu_dai, 0, pll_out, 0);
 149         //snd_soc_dai_set_clkdiv(cpu_dai, ROCKCHIP_DIV_BCLK, (pll_out/4)/params_rate(params)-1);
 150         //snd_soc_dai_set_clkdiv(cpu_dai, ROCKCHIP_DIV_MCLK, 3);
 151
 152         DBG("Enter:%s, %d, pll_out/4/params_rate(params) = %d \n", __FUNCTION__, __LINE__, (pll_out/4)/params_rate(params));
 153
 154         return 0;
 155 }
 156
 157 static const struct snd_soc_dapm_widget rockchip_rt3261_dapm_widgets[] = {
 158         SND_SOC_DAPM_MIC("Mic Jack", NULL),
 159         SND_SOC_DAPM_MIC("Headset Jack", NULL),
 160         SND_SOC_DAPM_SPK("Ext Spk", NULL),
 161         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 162 };
 163
 164 static const struct snd_soc_dapm_route audio_map[]={
 165
 166         /* Mic Jack --> MIC_IN*/
 167         {"micbias1", NULL, "Mic Jack"},
 168         {"MIC1", NULL, "micbias1"},
 169
 170         // HP MIC
 171         {"micbias1", NULL, "Headset Jack"},
 172         {"MIC3", NULL, "micbias1"},
 173
 174         {"Ext Spk", NULL, "SPOLP"},
 175         {"Ext Spk", NULL, "SPOLN"},
 176         {"Ext Spk", NULL, "SPORP"},
 177         {"Ext Spk", NULL, "SPORN"},
 178
 179         {"Headphone Jack", NULL, "HPOL"},
 180         {"Headphone Jack", NULL, "HPOR"},
 181 } ;
 182
 183 static const struct snd_kcontrol_new rockchip_rt3261_controls[] = {
 184         SOC_DAPM_PIN_SWITCH("Mic Jack"),
 185         SOC_DAPM_PIN_SWITCH("Headset Jack"),
 186         SOC_DAPM_PIN_SWITCH("Ext Spk"),
 187         SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 188 };
 189
 190 /*
 191  * Logic for a rt3261 as connected on a rockchip board.
 192  */
 193 static int rockchip_rt3261_init(struct snd_soc_pcm_runtime *rtd)
 194 {
 195         struct snd_soc_codec *codec = rtd->codec;
 196         struct snd_soc_dapm_context *dapm = &codec->dapm;
 197
 198         DBG("Enter::%s----%d\n",__FUNCTION__,__LINE__);
 199
 200         mutex_lock(&dapm->card->dapm_mutex);
 201
 202         snd_soc_dapm_enable_pin(dapm, "Mic Jack");
 203         snd_soc_dapm_enable_pin(dapm, "Headset Jack");
 204         snd_soc_dapm_enable_pin(dapm, "Ext Spk");
 205         snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
 206
 207         mutex_unlock(&dapm->card->dapm_mutex);
 208
 209         snd_soc_dapm_sync(dapm);
 210
 211         return 0;
 212 }
 213
 214 static struct snd_soc_ops rockchip_rt3261_hifi_ops = {
 215         .hw_params = rockchip_rt3261_hifi_hw_params,
 216 };
 217
 218 static struct snd_soc_ops rockchip_rt3261_voice_ops = {
 219         .hw_params = rockchip_rt3261_voice_hw_params,
 220 };
 221
 222 static struct snd_soc_dai_link rockchip_rt3261_dai[] = {
 223         {
 224                 .name = "RT3261 I2S1",
 225                 .stream_name = "RT3261 PCM1",
 226                 .codec_dai_name = "rt3261-aif1",
 227                 .init = rockchip_rt3261_init,
 228                 .ops = &rockchip_rt3261_hifi_ops,
 229         },
 230         {
 231                 .name = "RT3261 I2S2",
 232                 .stream_name = "RT3261 PCM2",
 233                 .codec_dai_name = "rt3261-aif2",
 234                 .ops = &rockchip_rt3261_voice_ops,
 235         },
 236 };
 237
 238 static struct snd_soc_card rockchip_rt3261_snd_card = {
 239         #if defined (CONFIG_SND_SOC_RT3224)
 240         .name = "RK_RT3224",
 241         #else
 242         .name = "RK_RT3261",
 243         #endif
 244         .owner = THIS_MODULE,
 245         .dai_link = rockchip_rt3261_dai,
 246         .num_links = ARRAY_SIZE(rockchip_rt3261_dai),
 247         .controls = rockchip_rt3261_controls,
 248         .num_controls = ARRAY_SIZE(rockchip_rt3261_controls),
 249         .dapm_widgets    = rockchip_rt3261_dapm_widgets,
 250         .num_dapm_widgets = ARRAY_SIZE(rockchip_rt3261_dapm_widgets),
 251         .dapm_routes    = audio_map,
 252         .num_dapm_routes = ARRAY_SIZE(audio_map),
 253 };
 254
 255 /*
 256 dts:
 257         rockchip-rt3261 {
 258                 compatible = "rockchip-rt3261";
 259                 dais {
 260                         dai0 {
 261                                 audio-codec = <&rt3261>;
 262                                 i2s-controller = <&i2s0>;
 263                                 format = "i2s";
 264                                 //continuous-clock;
 265                                 //bitclock-inversion;
 266                                 //frame-inversion;
 267                                 //bitclock-master;
 268                                 //frame-master;
 269                         };
 270
 271                         dai1 {
 272                                 audio-codec = <&rt3261>;
 273                                 i2s-controller = <&i2s0>;
 274                                 format = "dsp_a";
 275                                 //continuous-clock;
 276                                 bitclock-inversion;
 277                                 //frame-inversion;
 278                                 //bitclock-master;
 279                                 //frame-master;
 280                         };
 281                 };
 282         };
 283 */
 284 static int rockchip_rt3261_audio_probe(struct platform_device *pdev)
 285 {
 286         int ret;
 287         struct snd_soc_card *card = &rockchip_rt3261_snd_card;
 288
 289         card->dev = &pdev->dev;
 290
 291         ret = rockchip_of_get_sound_card_info(card);
 292         if (ret) {
 293                 printk("%s() get sound card info failed:%d\n", __FUNCTION__, ret);
 294                 return ret;
 295         }
 296
 297         ret = snd_soc_register_card(card);
 298         if (ret)
 299                 printk("%s() register card failed:%d\n", __FUNCTION__, ret);
 300
 301         return ret;
 302 }
 303
 304 static int rockchip_rt3261_audio_remove(struct platform_device *pdev)
 305 {
 306         struct snd_soc_card *card = platform_get_drvdata(pdev);
 307
 308         snd_soc_unregister_card(card);
 309
 310         return 0;
 311 }
 312
 313 #ifdef CONFIG_OF
 314 static const struct of_device_id rockchip_rt3261_of_match[] = {
 315         { .compatible = "rockchip-rt3261", },
 316         {},
 317 };
 318 MODULE_DEVICE_TABLE(of, rockchip_rt3261_of_match);
 319 #endif /* CONFIG_OF */
 320
 321 static struct platform_driver rockchip_rt3261_audio_driver = {
 322         .driver         = {
 323                 .name   = "rockchip-rt3261",
 324                 .owner  = THIS_MODULE,
 325                 .pm = &snd_soc_pm_ops,
 326                 .of_match_table = of_match_ptr(rockchip_rt3261_of_match),
 327         },
 328         .probe          = rockchip_rt3261_audio_probe,
 329         .remove         = rockchip_rt3261_audio_remove,
 330 };
 331
 332 module_platform_driver(rockchip_rt3261_audio_driver);
 333
 334 /* Module information */
 335 MODULE_AUTHOR("rockchip");
 336 MODULE_DESCRIPTION("ROCKCHIP i2s ASoC Interface");
 337 MODULE_LICENSE("GPL");