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 saarb_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_tdm_slot(cpu_dai, 3, 3, 2, width);
  96
  97         return ret;
  98 }
  99
 100 static struct snd_soc_ops saarb_i2s_ops = {
 101         .hw_params      = saarb_i2s_hw_params,
 102 };
 103
 104 static struct snd_soc_dai_link saarb_dai[] = {
 105         {
 106                 .name           = "88PM860x I2S",
 107                 .stream_name    = "I2S Audio",
 108                 .cpu_dai_name   = "pxa-ssp-dai.1",
 109                 .codec_dai_name = "88pm860x-i2s",
 110                 .platform_name  = "pxa-pcm-audio",
 111                 .codec_name     = "88pm860x-codec",
 112                 .init           = saarb_pm860x_init,
 113                 .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 114                                   SND_SOC_DAIFMT_CBM_CFM,
 115                 .ops            = &saarb_i2s_ops,
 116         },
 117 };
 118
 119 static struct snd_soc_card snd_soc_card_saarb = {
 120         .name = "Saarb",
 121         .owner = THIS_MODULE,
 122         .dai_link = saarb_dai,
 123         .num_links = ARRAY_SIZE(saarb_dai),
 124
 125         .dapm_widgets = saarb_dapm_widgets,
 126         .num_dapm_widgets = ARRAY_SIZE(saarb_dapm_widgets),
 127         .dapm_routes = saarb_audio_map,
 128         .num_dapm_routes = ARRAY_SIZE(saarb_audio_map),
 129 };
 130
 131 static int saarb_pm860x_init(struct snd_soc_pcm_runtime *rtd)
 132 {
 133         struct snd_soc_codec *codec = rtd->codec;
 134         struct snd_soc_dapm_context *dapm = &codec->dapm;
 135
 136         /* connected pins */
 137         snd_soc_dapm_enable_pin(dapm, "Ext Speaker");
 138         snd_soc_dapm_enable_pin(dapm, "Ext Mic 1");
 139         snd_soc_dapm_enable_pin(dapm, "Ext Mic 3");
 140         snd_soc_dapm_disable_pin(dapm, "Headset Mic 2");
 141         snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
 142
 143         /* Headset jack detection */
 144         snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE
 145                         | SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2,
 146                         &hs_jack);
 147         snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
 148                               hs_jack_pins);
 149         snd_soc_jack_new(codec, "Microphone Jack", SND_JACK_MICROPHONE,
 150                          &mic_jack);
 151         snd_soc_jack_add_pins(&mic_jack, ARRAY_SIZE(mic_jack_pins),
 152                               mic_jack_pins);
 153
 154         /* headphone, microphone detection & headset short detection */
 155         pm860x_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADPHONE,
 156                               SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2);
 157         pm860x_mic_jack_detect(codec, &hs_jack, SND_JACK_MICROPHONE);
 158         return 0;
 159 }
 160
 161 static int __init saarb_init(void)
 162 {
 163         int ret;
 164
 165         if (!machine_is_saarb())
 166                 return -ENODEV;
 167         saarb_snd_device = platform_device_alloc("soc-audio", -1);
 168         if (!saarb_snd_device)
 169                 return -ENOMEM;
 170
 171         platform_set_drvdata(saarb_snd_device, &snd_soc_card_saarb);
 172
 173         ret = platform_device_add(saarb_snd_device);
 174         if (ret)
 175                 platform_device_put(saarb_snd_device);
 176
 177         return ret;
 178 }
 179
 180 static void __exit saarb_exit(void)
 181 {
 182         platform_device_unregister(saarb_snd_device);
 183 }
 184
 185 module_init(saarb_init);
 186 module_exit(saarb_exit);
 187
 188 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
 189 MODULE_DESCRIPTION("ALSA SoC 88PM860x Saarb");
 190 MODULE_LICENSE("GPL");