sound/soc/rk29/rk29_jetta_codec.c

   1 /*
   2  * rk29_wm8988.c  --  SoC audio for rockchip
   3  *
   4  * Driver for rockchip wm8988 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 <mach/hardware.h>
  22 #include "../codecs/rk610_codec.h"
  23 #include "rk29_pcm.h"
  24 #include "rk29_i2s.h"
  25
  26 #if 0
  27 #define DBG(x...)       printk(KERN_ERR x)
  28 #else
  29 #define DBG(x...)
  30 #endif
  31
  32 static int rk29_hw_params(struct snd_pcm_substream *substream,
  33         struct snd_pcm_hw_params *params)
  34 {
  35         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  36         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  37         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  38         int ret;
  39         unsigned int pll_out = 0;
  40         int div_bclk,div_mclk;
  41 //      struct clk      *general_pll;
  42
  43         DBG("Enter::%s----%d\n",__FUNCTION__,__LINE__);
  44         /*by Vincent Hsiung for EQ Vol Change*/
  45         #define HW_PARAMS_FLAG_EQVOL_ON 0x21
  46         #define HW_PARAMS_FLAG_EQVOL_OFF 0x22
  47         if ((params->flags == HW_PARAMS_FLAG_EQVOL_ON)||(params->flags == HW_PARAMS_FLAG_EQVOL_OFF))
  48         {
  49                 ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai); //by Vincent
  50         }
  51         else
  52         {
  53                 /* set codec DAI configuration */
  54                 DBG("Enter::%s----%d\n",__FUNCTION__,__LINE__);
  55                 #if defined (CONFIG_SND_RK29_CODEC_SOC_SLAVE)
  56                 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
  57                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
  58                 #elif defined (CONFIG_SND_RK29_CODEC_SOC_MASTER)
  59                 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
  60                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM );
  61                 #endif
  62                 if (ret < 0)
  63                         return ret;
  64                 /* set cpu DAI configuration */
  65                 DBG("Enter::%s----%d\n",__FUNCTION__,__LINE__);
  66                 #if defined (CONFIG_SND_RK29_CODEC_SOC_SLAVE)
  67                 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
  68                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
  69                 #elif defined (CONFIG_SND_RK29_CODEC_SOC_MASTER)
  70                 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
  71                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
  72                 #endif
  73                 if (ret < 0)
  74                         return ret;
  75         }
  76
  77         switch(params_rate(params)) {
  78         case 8000:
  79         case 16000:
  80         case 24000:
  81         case 32000:
  82         case 48000:
  83         case 96000:
  84             pll_out = 12288000;
  85             break;
  86         case 11025:
  87         case 22050:
  88         case 44100:
  89         case 88200:
  90             pll_out = 11289600;
  91             break;
  92         case 176400:
  93                         pll_out = 11289600*2;
  94                 break;
  95         case 192000:
  96                 pll_out = 12288000*2;
  97                 break;
  98         default:
  99             DBG("Enter:%s, %d, Error rate=%d\n",__FUNCTION__,__LINE__,params_rate(params));
 100             return -EINVAL;
 101             break;
 102         }
 103         DBG("Enter:%s, %d, rate=%d\n",__FUNCTION__,__LINE__,params_rate(params));
 104         snd_soc_dai_set_sysclk(codec_dai, 0, pll_out, SND_SOC_CLOCK_IN);
 105
 106 //      #if defined (CONFIG_SND_RK29_CODEC_SOC_MASTER)
 107 //              snd_soc_dai_set_sysclk(cpu_dai, 0, pll_out, 0);
 108 //      #endif
 109         #if defined (CONFIG_SND_RK29_CODEC_SOC_SLAVE)
 110                 div_bclk = 63;
 111                 div_mclk = pll_out/(params_rate(params)*64) - 1;
 112
 113                 DBG("func is%s,pll_out=%d,div_mclk=%d div_bclk\n",
 114                                 __FUNCTION__,pll_out,div_mclk, div_bclk);
 115                 snd_soc_dai_set_sysclk(cpu_dai, 0, pll_out, 0);
 116                 snd_soc_dai_set_clkdiv(cpu_dai, ROCKCHIP_DIV_BCLK,div_bclk);
 117                 snd_soc_dai_set_clkdiv(cpu_dai, ROCKCHIP_DIV_MCLK, div_mclk);
 118 //              DBG("Enter:%s, %d, LRCK=%d\n",__FUNCTION__,__LINE__,(pll_out/4)/params_rate(params));
 119         #endif
 120     return 0;
 121 }
 122
 123 static struct snd_soc_ops rk29_ops = {
 124         .hw_params = rk29_hw_params,
 125 };
 126
 127 static struct snd_soc_dai_link rk29_dai = {
 128         .name = "RK610_CODEC",
 129         .stream_name = "RK610 CODEC PCM",
 130 #if defined(CONFIG_MACH_RK3168_DS1006H)|| defined(CONFIG_MACH_RK3168_LR097)
 131         .codec_name = "RK610_CODEC.4-0060",
 132 #else
 133         .codec_name = "RK610_CODEC.0-0060",
 134 #endif
 135         .platform_name = "rockchip-audio",
 136 #if defined(CONFIG_SND_RK29_SOC_I2S_8CH)
 137         .cpu_dai_name = "rk29_i2s.0",
 138 #elif defined(CONFIG_SND_RK29_SOC_I2S_2CH)
 139         .cpu_dai_name = "rk29_i2s.1",
 140 #else
 141         .cpu_dai_name = "rk29_i2s.2",
 142 #endif
 143         .codec_dai_name = "rk610_codec",
 144         .ops = &rk29_ops,
 145 };
 146 static struct snd_soc_card snd_soc_card_rk29 = {
 147         .name = "RK29_RK610",
 148         .dai_link = &rk29_dai,
 149         .num_links = 1,
 150 };
 151
 152
 153 static struct platform_device *rk29_snd_device;
 154
 155 static int __init audio_card_init(void)
 156 {
 157         int ret =0;
 158         DBG("Enter::%s----%d\n",__FUNCTION__,__LINE__);
 159         rk29_snd_device = platform_device_alloc("soc-audio", -1);
 160         if (!rk29_snd_device) {
 161                 printk("[%s] platform device allocation failed\n", __FUNCTION__);
 162                 ret = -ENOMEM;
 163                 return ret;
 164         }
 165         platform_set_drvdata(rk29_snd_device, &snd_soc_card_rk29);
 166
 167         ret = platform_device_add(rk29_snd_device);
 168         if (ret) {
 169                 DBG("platform device add failed\n");
 170                 platform_device_put(rk29_snd_device);
 171         }
 172         return ret;
 173 }
 174 static void __exit audio_card_exit(void)
 175 {
 176         platform_device_unregister(rk29_snd_device);
 177 }
 178
 179 module_init(audio_card_init);
 180 module_exit(audio_card_exit);
 181 /* Module information */
 182 MODULE_AUTHOR("rockchip");
 183 MODULE_DESCRIPTION("ROCKCHIP i2s ASoC Interface");
 184 MODULE_LICENSE("GPL");