sound/soc/samsung/jive_wm8750.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Copyright 2007,2008 Simtec Electronics
   4 //
   5 // Based on sound/soc/pxa/spitz.c
   6 //      Copyright 2005 Wolfson Microelectronics PLC.
   7 //      Copyright 2005 Openedhand Ltd.
   8
   9 #include <linux/module.h>
  10 #include <sound/soc.h>
  11
  12 #include <asm/mach-types.h>
  13
  14 #include "s3c2412-i2s.h"
  15 #include "../codecs/wm8750.h"
  16
  17 static const struct snd_soc_dapm_route audio_map[] = {
  18         { "Headphone Jack", NULL, "LOUT1" },
  19         { "Headphone Jack", NULL, "ROUT1" },
  20         { "Internal Speaker", NULL, "LOUT2" },
  21         { "Internal Speaker", NULL, "ROUT2" },
  22         { "LINPUT1", NULL, "Line Input" },
  23         { "RINPUT1", NULL, "Line Input" },
  24 };
  25
  26 static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
  27         SND_SOC_DAPM_HP("Headphone Jack", NULL),
  28         SND_SOC_DAPM_SPK("Internal Speaker", NULL),
  29         SND_SOC_DAPM_LINE("Line In", NULL),
  30 };
  31
  32 static int jive_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         struct s3c_i2sv2_rate_calc div;
  39         unsigned int clk = 0;
  40         int ret = 0;
  41
  42         switch (params_rate(params)) {
  43         case 8000:
  44         case 16000:
  45         case 48000:
  46         case 96000:
  47                 clk = 12288000;
  48                 break;
  49         case 11025:
  50         case 22050:
  51         case 44100:
  52                 clk = 11289600;
  53                 break;
  54         }
  55
  56         s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params),
  57                                 s3c_i2sv2_get_clock(cpu_dai));
  58
  59         /* set the codec system clock for DAC and ADC */
  60         ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
  61                                      SND_SOC_CLOCK_IN);
  62         if (ret < 0)
  63                 return ret;
  64
  65         ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div);
  66         if (ret < 0)
  67                 return ret;
  68
  69         ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER,
  70                                      div.clk_div - 1);
  71         if (ret < 0)
  72                 return ret;
  73
  74         return 0;
  75 }
  76
  77 static const struct snd_soc_ops jive_ops = {
  78         .hw_params      = jive_hw_params,
  79 };
  80
  81 static struct snd_soc_dai_link jive_dai = {
  82         .name           = "wm8750",
  83         .stream_name    = "WM8750",
  84         .cpu_dai_name   = "s3c2412-i2s",
  85         .codec_dai_name = "wm8750-hifi",
  86         .platform_name  = "s3c2412-i2s",
  87         .codec_name     = "wm8750.0-001a",
  88         .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
  89                           SND_SOC_DAIFMT_CBS_CFS,
  90         .ops            = &jive_ops,
  91 };
  92
  93 /* jive audio machine driver */
  94 static struct snd_soc_card snd_soc_machine_jive = {
  95         .name           = "Jive",
  96         .owner          = THIS_MODULE,
  97         .dai_link       = &jive_dai,
  98         .num_links      = 1,
  99
 100         .dapm_widgets   = wm8750_dapm_widgets,
 101         .num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
 102         .dapm_routes    = audio_map,
 103         .num_dapm_routes = ARRAY_SIZE(audio_map),
 104         .fully_routed   = true,
 105 };
 106
 107 static struct platform_device *jive_snd_device;
 108
 109 static int __init jive_init(void)
 110 {
 111         int ret;
 112
 113         if (!machine_is_jive())
 114                 return 0;
 115
 116         printk("JIVE WM8750 Audio support\n");
 117
 118         jive_snd_device = platform_device_alloc("soc-audio", -1);
 119         if (!jive_snd_device)
 120                 return -ENOMEM;
 121
 122         platform_set_drvdata(jive_snd_device, &snd_soc_machine_jive);
 123         ret = platform_device_add(jive_snd_device);
 124
 125         if (ret)
 126                 platform_device_put(jive_snd_device);
 127
 128         return ret;
 129 }
 130
 131 static void __exit jive_exit(void)
 132 {
 133         platform_device_unregister(jive_snd_device);
 134 }
 135
 136 module_init(jive_init);
 137 module_exit(jive_exit);
 138
 139 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
 140 MODULE_DESCRIPTION("ALSA SoC Jive Audio support");
 141 MODULE_LICENSE("GPL");