sound/soc/pxa/mioa701_wm9713.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Handles the Mitac mioa701 SoC system
   4  *
   5  * Copyright (C) 2008 Robert Jarzmik
   6  *
   7  * This is a little schema of the sound interconnections :
   8  *
   9  *    Sagem X200                 Wolfson WM9713
  10  *    +--------+             +-------------------+      Rear Speaker
  11  *    |        |             |                   |           /-+
  12  *    |        +--->----->---+MONOIN         SPKL+--->----+-+  |
  13  *    |  GSM   |             |                   |        | |  |
  14  *    |        +--->----->---+PCBEEP         SPKR+--->----+-+  |
  15  *    |  CHIP  |             |                   |           \-+
  16  *    |        +---<-----<---+MONO               |
  17  *    |        |             |                   |      Front Speaker
  18  *    +--------+             |                   |           /-+
  19  *                           |                HPL+--->----+-+  |
  20  *                           |                   |        | |  |
  21  *                           |               OUT3+--->----+-+  |
  22  *                           |                   |           \-+
  23  *                           |                   |
  24  *                           |                   |     Front Micro
  25  *                           |                   |         +
  26  *                           |               MIC1+-----<--+o+
  27  *                           |                   |         +
  28  *                           +-------------------+        ---
  29  */
  30
  31 #include <linux/module.h>
  32 #include <linux/moduleparam.h>
  33 #include <linux/platform_device.h>
  34
  35 #include <asm/mach-types.h>
  36 #include <mach/audio.h>
  37
  38 #include <sound/core.h>
  39 #include <sound/pcm.h>
  40 #include <sound/soc.h>
  41 #include <sound/initval.h>
  42 #include <sound/ac97_codec.h>
  43
  44 #include "../codecs/wm9713.h"
  45
  46 #define AC97_GPIO_PULL          0x58
  47
  48 /* Use GPIO8 for rear speaker amplifier */
  49 static int rear_amp_power(struct snd_soc_component *component, int power)
  50 {
  51         unsigned short reg;
  52
  53         if (power) {
  54                 reg = snd_soc_component_read(component, AC97_GPIO_CFG);
  55                 snd_soc_component_write(component, AC97_GPIO_CFG, reg | 0x0100);
  56                 reg = snd_soc_component_read(component, AC97_GPIO_PULL);
  57                 snd_soc_component_write(component, AC97_GPIO_PULL, reg | (1<<15));
  58         } else {
  59                 reg = snd_soc_component_read(component, AC97_GPIO_CFG);
  60                 snd_soc_component_write(component, AC97_GPIO_CFG, reg & ~0x0100);
  61                 reg = snd_soc_component_read(component, AC97_GPIO_PULL);
  62                 snd_soc_component_write(component, AC97_GPIO_PULL, reg & ~(1<<15));
  63         }
  64
  65         return 0;
  66 }
  67
  68 static int rear_amp_event(struct snd_soc_dapm_widget *widget,
  69                           struct snd_kcontrol *kctl, int event)
  70 {
  71         struct snd_soc_card *card = widget->dapm->card;
  72         struct snd_soc_pcm_runtime *rtd;
  73         struct snd_soc_component *component;
  74
  75         rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
  76         component = asoc_rtd_to_codec(rtd, 0)->component;
  77         return rear_amp_power(component, SND_SOC_DAPM_EVENT_ON(event));
  78 }
  79
  80 /* mioa701 machine dapm widgets */
  81 static const struct snd_soc_dapm_widget mioa701_dapm_widgets[] = {
  82         SND_SOC_DAPM_SPK("Front Speaker", NULL),
  83         SND_SOC_DAPM_SPK("Rear Speaker", rear_amp_event),
  84         SND_SOC_DAPM_MIC("Headset", NULL),
  85         SND_SOC_DAPM_LINE("GSM Line Out", NULL),
  86         SND_SOC_DAPM_LINE("GSM Line In", NULL),
  87         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  88         SND_SOC_DAPM_MIC("Front Mic", NULL),
  89 };
  90
  91 static const struct snd_soc_dapm_route audio_map[] = {
  92         /* Call Mic */
  93         {"Mic Bias", NULL, "Front Mic"},
  94         {"MIC1", NULL, "Mic Bias"},
  95
  96         /* Headset Mic */
  97         {"LINEL", NULL, "Headset Mic"},
  98         {"LINER", NULL, "Headset Mic"},
  99
 100         /* GSM Module */
 101         {"MONOIN", NULL, "GSM Line Out"},
 102         {"PCBEEP", NULL, "GSM Line Out"},
 103         {"GSM Line In", NULL, "MONO"},
 104
 105         /* headphone connected to HPL, HPR */
 106         {"Headset", NULL, "HPL"},
 107         {"Headset", NULL, "HPR"},
 108
 109         /* front speaker connected to HPL, OUT3 */
 110         {"Front Speaker", NULL, "HPL"},
 111         {"Front Speaker", NULL, "OUT3"},
 112
 113         /* rear speaker connected to SPKL, SPKR */
 114         {"Rear Speaker", NULL, "SPKL"},
 115         {"Rear Speaker", NULL, "SPKR"},
 116 };
 117
 118 static int mioa701_wm9713_init(struct snd_soc_pcm_runtime *rtd)
 119 {
 120         struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
 121
 122         /* Prepare GPIO8 for rear speaker amplifier */
 123         snd_soc_component_update_bits(component, AC97_GPIO_CFG, 0x100, 0x100);
 124
 125         /* Prepare MIC input */
 126         snd_soc_component_update_bits(component, AC97_3D_CONTROL, 0xc000, 0xc000);
 127
 128         return 0;
 129 }
 130
 131 static struct snd_soc_ops mioa701_ops;
 132
 133 SND_SOC_DAILINK_DEFS(ac97,
 134         DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
 135         DAILINK_COMP_ARRAY(COMP_CODEC("wm9713-codec", "wm9713-hifi")),
 136         DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
 137
 138 SND_SOC_DAILINK_DEFS(ac97_aux,
 139         DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
 140         DAILINK_COMP_ARRAY(COMP_CODEC("wm9713-codec", "wm9713-aux")),
 141         DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
 142
 143 static struct snd_soc_dai_link mioa701_dai[] = {
 144         {
 145                 .name = "AC97",
 146                 .stream_name = "AC97 HiFi",
 147                 .init = mioa701_wm9713_init,
 148                 .ops = &mioa701_ops,
 149                 SND_SOC_DAILINK_REG(ac97),
 150         },
 151         {
 152                 .name = "AC97 Aux",
 153                 .stream_name = "AC97 Aux",
 154                 .ops = &mioa701_ops,
 155                 SND_SOC_DAILINK_REG(ac97_aux),
 156         },
 157 };
 158
 159 static struct snd_soc_card mioa701 = {
 160         .name = "MioA701",
 161         .owner = THIS_MODULE,
 162         .dai_link = mioa701_dai,
 163         .num_links = ARRAY_SIZE(mioa701_dai),
 164
 165         .dapm_widgets = mioa701_dapm_widgets,
 166         .num_dapm_widgets = ARRAY_SIZE(mioa701_dapm_widgets),
 167         .dapm_routes = audio_map,
 168         .num_dapm_routes = ARRAY_SIZE(audio_map),
 169 };
 170
 171 static int mioa701_wm9713_probe(struct platform_device *pdev)
 172 {
 173         int rc;
 174
 175         if (!machine_is_mioa701())
 176                 return -ENODEV;
 177
 178         mioa701.dev = &pdev->dev;
 179         rc = devm_snd_soc_register_card(&pdev->dev, &mioa701);
 180         if (!rc)
 181                 dev_warn(&pdev->dev, "Be warned that incorrect mixers/muxes setup will "
 182                          "lead to overheating and possible destruction of your device."
 183                          " Do not use without a good knowledge of mio's board design!\n");
 184         return rc;
 185 }
 186
 187 static struct platform_driver mioa701_wm9713_driver = {
 188         .probe          = mioa701_wm9713_probe,
 189         .driver         = {
 190                 .name           = "mioa701-wm9713",
 191                 .pm     = &snd_soc_pm_ops,
 192         },
 193 };
 194
 195 module_platform_driver(mioa701_wm9713_driver);
 196
 197 /* Module information */
 198 MODULE_AUTHOR("Robert Jarzmik (rjarzmik@free.fr)");
 199 MODULE_DESCRIPTION("ALSA SoC WM9713 MIO A701");
 200 MODULE_LICENSE("GPL");
 201 MODULE_ALIAS("platform:mioa701-wm9713");