sound/soc/fsl/mx27vis-aic32x4.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 //
   3 // mx27vis-aic32x4.c
   4 //
   5 // Copyright 2011 Vista Silicon S.L.
   6 //
   7 // Author: Javier Martin <javier.martin@vista-silicon.com>
   8
   9 #include <linux/module.h>
  10 #include <linux/moduleparam.h>
  11 #include <linux/device.h>
  12 #include <linux/i2c.h>
  13 #include <linux/gpio.h>
  14 #include <linux/platform_data/asoc-mx27vis.h>
  15 #include <sound/core.h>
  16 #include <sound/pcm.h>
  17 #include <sound/soc.h>
  18 #include <sound/soc-dapm.h>
  19 #include <sound/tlv.h>
  20 #include <asm/mach-types.h>
  21
  22 #include "../codecs/tlv320aic32x4.h"
  23 #include "imx-ssi.h"
  24 #include "imx-audmux.h"
  25
  26 #define MX27VIS_AMP_GAIN        0
  27 #define MX27VIS_AMP_MUTE        1
  28
  29 static int mx27vis_amp_gain;
  30 static int mx27vis_amp_mute;
  31 static int mx27vis_amp_gain0_gpio;
  32 static int mx27vis_amp_gain1_gpio;
  33 static int mx27vis_amp_mutel_gpio;
  34 static int mx27vis_amp_muter_gpio;
  35
  36 static int mx27vis_aic32x4_hw_params(struct snd_pcm_substream *substream,
  37                             struct snd_pcm_hw_params *params)
  38 {
  39         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  40         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  41         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  42         int ret;
  43
  44         ret = snd_soc_dai_set_sysclk(codec_dai, 0,
  45                                      25000000, SND_SOC_CLOCK_OUT);
  46         if (ret) {
  47                 pr_err("%s: failed setting codec sysclk\n", __func__);
  48                 return ret;
  49         }
  50
  51         ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
  52                                 SND_SOC_CLOCK_IN);
  53         if (ret) {
  54                 pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
  55                 return ret;
  56         }
  57
  58         return 0;
  59 }
  60
  61 static const struct snd_soc_ops mx27vis_aic32x4_snd_ops = {
  62         .hw_params      = mx27vis_aic32x4_hw_params,
  63 };
  64
  65 static int mx27vis_amp_set(struct snd_kcontrol *kcontrol,
  66                             struct snd_ctl_elem_value *ucontrol)
  67 {
  68         struct soc_mixer_control *mc =
  69                 (struct soc_mixer_control *)kcontrol->private_value;
  70         int value = ucontrol->value.integer.value[0];
  71         unsigned int reg = mc->reg;
  72         int max = mc->max;
  73
  74         if (value > max)
  75                 return -EINVAL;
  76
  77         switch (reg) {
  78         case MX27VIS_AMP_GAIN:
  79                 gpio_set_value(mx27vis_amp_gain0_gpio, value & 1);
  80                 gpio_set_value(mx27vis_amp_gain1_gpio, value >> 1);
  81                 mx27vis_amp_gain = value;
  82                 break;
  83         case MX27VIS_AMP_MUTE:
  84                 gpio_set_value(mx27vis_amp_mutel_gpio, value & 1);
  85                 gpio_set_value(mx27vis_amp_muter_gpio, value >> 1);
  86                 mx27vis_amp_mute = value;
  87                 break;
  88         }
  89         return 0;
  90 }
  91
  92 static int mx27vis_amp_get(struct snd_kcontrol *kcontrol,
  93                             struct snd_ctl_elem_value *ucontrol)
  94 {
  95         struct soc_mixer_control *mc =
  96                 (struct soc_mixer_control *)kcontrol->private_value;
  97         unsigned int reg = mc->reg;
  98
  99         switch (reg) {
 100         case MX27VIS_AMP_GAIN:
 101                 ucontrol->value.integer.value[0] = mx27vis_amp_gain;
 102                 break;
 103         case MX27VIS_AMP_MUTE:
 104                 ucontrol->value.integer.value[0] = mx27vis_amp_mute;
 105                 break;
 106         }
 107         return 0;
 108 }
 109
 110 /* From 6dB to 24dB in steps of 6dB */
 111 static const DECLARE_TLV_DB_SCALE(mx27vis_amp_tlv, 600, 600, 0);
 112
 113 static const struct snd_kcontrol_new mx27vis_aic32x4_controls[] = {
 114         SOC_DAPM_PIN_SWITCH("External Mic"),
 115         SOC_SINGLE_EXT_TLV("LO Ext Boost", MX27VIS_AMP_GAIN, 0, 3, 0,
 116                        mx27vis_amp_get, mx27vis_amp_set, mx27vis_amp_tlv),
 117         SOC_DOUBLE_EXT("LO Ext Mute Switch", MX27VIS_AMP_MUTE, 0, 1, 1, 0,
 118                        mx27vis_amp_get, mx27vis_amp_set),
 119 };
 120
 121 static const struct snd_soc_dapm_widget aic32x4_dapm_widgets[] = {
 122         SND_SOC_DAPM_MIC("External Mic", NULL),
 123 };
 124
 125 static const struct snd_soc_dapm_route aic32x4_dapm_routes[] = {
 126         {"Mic Bias", NULL, "External Mic"},
 127         {"IN1_R", NULL, "Mic Bias"},
 128         {"IN2_R", NULL, "Mic Bias"},
 129         {"IN3_R", NULL, "Mic Bias"},
 130         {"IN1_L", NULL, "Mic Bias"},
 131         {"IN2_L", NULL, "Mic Bias"},
 132         {"IN3_L", NULL, "Mic Bias"},
 133 };
 134
 135 SND_SOC_DAILINK_DEFS(hifi,
 136         DAILINK_COMP_ARRAY(COMP_CPU("imx-ssi.0")),
 137         DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic32x4.0-0018",
 138                                       "tlv320aic32x4-hifi")),
 139         DAILINK_COMP_ARRAY(COMP_PLATFORM("imx-ssi.0")));
 140
 141 static struct snd_soc_dai_link mx27vis_aic32x4_dai = {
 142         .name           = "tlv320aic32x4",
 143         .stream_name    = "TLV320AIC32X4",
 144         .dai_fmt        = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
 145                           SND_SOC_DAIFMT_CBM_CFM,
 146         .ops            = &mx27vis_aic32x4_snd_ops,
 147         SND_SOC_DAILINK_REG(hifi),
 148 };
 149
 150 static struct snd_soc_card mx27vis_aic32x4 = {
 151         .name           = "visstrim_m10-audio",
 152         .owner          = THIS_MODULE,
 153         .dai_link       = &mx27vis_aic32x4_dai,
 154         .num_links      = 1,
 155         .controls       = mx27vis_aic32x4_controls,
 156         .num_controls   = ARRAY_SIZE(mx27vis_aic32x4_controls),
 157         .dapm_widgets   = aic32x4_dapm_widgets,
 158         .num_dapm_widgets = ARRAY_SIZE(aic32x4_dapm_widgets),
 159         .dapm_routes    = aic32x4_dapm_routes,
 160         .num_dapm_routes = ARRAY_SIZE(aic32x4_dapm_routes),
 161 };
 162
 163 static int mx27vis_aic32x4_probe(struct platform_device *pdev)
 164 {
 165         struct snd_mx27vis_platform_data *pdata = pdev->dev.platform_data;
 166         int ret;
 167
 168         if (!pdata) {
 169                 dev_err(&pdev->dev, "No platform data supplied\n");
 170                 return -EINVAL;
 171         }
 172
 173         mx27vis_amp_gain0_gpio = pdata->amp_gain0_gpio;
 174         mx27vis_amp_gain1_gpio = pdata->amp_gain1_gpio;
 175         mx27vis_amp_mutel_gpio = pdata->amp_mutel_gpio;
 176         mx27vis_amp_muter_gpio = pdata->amp_muter_gpio;
 177
 178         mx27vis_aic32x4.dev = &pdev->dev;
 179         ret = snd_soc_register_card(&mx27vis_aic32x4);
 180         if (ret) {
 181                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
 182                         ret);
 183                 return ret;
 184         }
 185
 186         /* Connect SSI0 as clock slave to SSI1 external pins */
 187         imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
 188                         IMX_AUDMUX_V1_PCR_SYN |
 189                         IMX_AUDMUX_V1_PCR_TFSDIR |
 190                         IMX_AUDMUX_V1_PCR_TCLKDIR |
 191                         IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) |
 192                         IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1)
 193         );
 194         imx_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1,
 195                         IMX_AUDMUX_V1_PCR_SYN |
 196                         IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
 197         );
 198
 199         return ret;
 200 }
 201
 202 static int mx27vis_aic32x4_remove(struct platform_device *pdev)
 203 {
 204         snd_soc_unregister_card(&mx27vis_aic32x4);
 205
 206         return 0;
 207 }
 208
 209 static struct platform_driver mx27vis_aic32x4_audio_driver = {
 210         .driver = {
 211                 .name = "mx27vis",
 212         },
 213         .probe = mx27vis_aic32x4_probe,
 214         .remove = mx27vis_aic32x4_remove,
 215 };
 216
 217 module_platform_driver(mx27vis_aic32x4_audio_driver);
 218
 219 MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
 220 MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim");
 221 MODULE_LICENSE("GPL");
 222 MODULE_ALIAS("platform:mx27vis");