sound/soc/pxa/saarb.c

   1 /*
   2  * saarb.c -- SoC audio for saarb
   3  *
   4  * Copyright (C) 2010 Marvell International Ltd.
   5  *      Haojian Zhuang <haojian.zhuang@marvell.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/moduleparam.h>
  14 #include <linux/device.h>
  15 #include <linux/clk.h>
  16 #include <linux/i2c.h>
  17 #include <sound/core.h>
  18 #include <sound/pcm.h>
  19 #include <sound/pcm_params.h>
  20 #include <sound/soc.h>
  21 #include <sound/jack.h>
  22
  23 #include <asm/mach-types.h>
  24
  25 #include "../codecs/88pm860x-codec.h"
  26 #include "pxa-ssp.h"
  27
  28 static int saarb_pm860x_init(struct snd_soc_pcm_runtime *rtd);
  29
  30 static struct platform_device *saarb_snd_device;
  31
  32 static struct snd_soc_jack hs_jack, mic_jack;
  33
  34 static struct snd_soc_jack_pin hs_jack_pins[] = {
  35         { .pin = "Headset Stereophone", .mask = SND_JACK_HEADPHONE, },
  36 };
  37
  38 static struct snd_soc_jack_pin mic_jack_pins[] = {
  39         { .pin = "Headset Mic 2",       .mask = SND_JACK_MICROPHONE, },
  40 };
  41
  42 /* saarb machine dapm widgets */
  43 static const struct snd_soc_dapm_widget saarb_dapm_widgets[] = {
  44         SND_SOC_DAPM_HP("Headphone Stereophone", NULL),
  45         SND_SOC_DAPM_LINE("Lineout Out 1", NULL),
  46         SND_SOC_DAPM_LINE("Lineout Out 2", NULL),
  47         SND_SOC_DAPM_SPK("Ext Speaker", NULL),
  48         SND_SOC_DAPM_MIC("Ext Mic 1", NULL),
  49         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  50         SND_SOC_DAPM_MIC("Ext Mic 3", NULL),
  51 };
  52
  53 /* saarb machine audio map */
  54 static const struct snd_soc_dapm_route audio_map[] = {
  55         {"Headset Stereophone", NULL, "HS1"},
  56         {"Headset Stereophone", NULL, "HS2"},
  57
  58         {"Ext Speaker", NULL, "LSP"},
  59         {"Ext Speaker", NULL, "LSN"},
  60
  61         {"Lineout Out 1", NULL, "LINEOUT1"},
  62         {"Lineout Out 2", NULL, "LINEOUT2"},
  63
  64         {"MIC1P", NULL, "Mic1 Bias"},
  65         {"MIC1N", NULL, "Mic1 Bias"},
  66         {"Mic1 Bias", NULL, "Ext Mic 1"},
  67
  68         {"MIC2P", NULL, "Mic1 Bias"},
  69         {"MIC2N", NULL, "Mic1 Bias"},
  70         {"Mic1 Bias", NULL, "Headset Mic 2"},
  71
  72         {"MIC3P", NULL, "Mic3 Bias"},
  73         {"MIC3N", NULL, "Mic3 Bias"},
  74         {"Mic3 Bias", NULL, "Ext Mic 3"},
  75 };
  76
  77 static int saarb_i2s_hw_params(struct snd_pcm_substream *substream,
  78                                 struct snd_pcm_hw_params *params)
  79 {
  80         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  81         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  82         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  83         int width = snd_pcm_format_physical_width(params_format(params));
  84         int ret;
  85
  86         ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_NET_PLL, 0,
  87                                      PM860X_CLK_DIR_OUT);
  88         if (ret < 0)
  89                 return ret;
  90
  91         ret = snd_soc_dai_set_sysclk(codec_dai, 0, 0, PM860X_CLK_DIR_OUT);
  92         if (ret < 0)
  93                 return ret;
  94
  95         ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
  96                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
  97         if (ret < 0)
  98                 return ret;
  99         ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
 100                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM);
 101         if (ret < 0)
 102                 return ret;
 103
 104         ret = snd_soc_dai_set_tdm_slot(cpu_dai, 3, 3, 2, width);
 105
 106         return ret;
 107 }
 108
 109 static struct snd_soc_ops saarb_i2s_ops = {
 110         .hw_params      = saarb_i2s_hw_params,
 111 };
 112
 113 static struct snd_soc_dai_link saarb_dai[] = {
 114         {
 115                 .name           = "88PM860x I2S",
 116                 .stream_name    = "I2S Audio",
 117                 .cpu_dai_name   = "pxa-ssp-dai.1",
 118                 .codec_dai_name = "88pm860x-i2s",
 119                 .platform_name  = "pxa-pcm-audio",
 120                 .codec_name     = "88pm860x-codec",
 121                 .init           = saarb_pm860x_init,
 122                 .ops            = &saarb_i2s_ops,
 123         },
 124 };
 125
 126 static struct snd_soc_card snd_soc_card_saarb = {
 127         .name = "Saarb",
 128         .dai_link = saarb_dai,
 129         .num_links = ARRAY_SIZE(saarb_dai),
 130 };
 131
 132 static int saarb_pm860x_init(struct snd_soc_pcm_runtime *rtd)
 133 {
 134         struct snd_soc_codec *codec = rtd->codec;
 135         struct snd_soc_dapm_context *dapm = &codec->dapm;
 136         int ret;
 137
 138         snd_soc_dapm_new_controls(dapm, saarb_dapm_widgets,
 139                                   ARRAY_SIZE(saarb_dapm_widgets));
 140         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 141
 142         /* connected pins */
 143         snd_soc_dapm_enable_pin(dapm, "Ext Speaker");
 144         snd_soc_dapm_enable_pin(dapm, "Ext Mic 1");
 145         snd_soc_dapm_enable_pin(dapm, "Ext Mic 3");
 146         snd_soc_dapm_disable_pin(dapm, "Headset Mic 2");
 147         snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
 148
 149         ret = snd_soc_dapm_sync(dapm);
 150         if (ret)
 151                 return ret;
 152
 153         /* Headset jack detection */
 154         snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE
 155                         | SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2,
 156                         &hs_jack);
 157         snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
 158                               hs_jack_pins);
 159         snd_soc_jack_new(codec, "Microphone Jack", SND_JACK_MICROPHONE,
 160                          &mic_jack);
 161         snd_soc_jack_add_pins(&mic_jack, ARRAY_SIZE(mic_jack_pins),
 162                               mic_jack_pins);
 163
 164         /* headphone, microphone detection & headset short detection */
 165         pm860x_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADPHONE,
 166                               SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2);
 167         pm860x_mic_jack_detect(codec, &hs_jack, SND_JACK_MICROPHONE);
 168         return 0;
 169 }
 170
 171 static int __init saarb_init(void)
 172 {
 173         int ret;
 174
 175         if (!machine_is_saarb())
 176                 return -ENODEV;
 177         saarb_snd_device = platform_device_alloc("soc-audio", -1);
 178         if (!saarb_snd_device)
 179                 return -ENOMEM;
 180
 181         platform_set_drvdata(saarb_snd_device, &snd_soc_card_saarb);
 182
 183         ret = platform_device_add(saarb_snd_device);
 184         if (ret)
 185                 platform_device_put(saarb_snd_device);
 186
 187         return ret;
 188 }
 189
 190 static void __exit saarb_exit(void)
 191 {
 192         platform_device_unregister(saarb_snd_device);
 193 }
 194
 195 module_init(saarb_init);
 196 module_exit(saarb_exit);
 197
 198 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
 199 MODULE_DESCRIPTION("ALSA SoC 88PM860x Saarb");
 200 MODULE_LICENSE("GPL");