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// SPDX-License-Identifier: GPL-2.0+
//
// Speyside audio support
//
// Copyright 2011 Wolfson Microelectronics
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/jack.h>
#include <linux/gpio.h>
#include <linux/module.h>
#include "../codecs/wm8996.h"
#include "../codecs/wm9081.h"
#define WM8996_HPSEL_GPIO 214
#define MCLK_AUDIO_RATE (512 * 48000)
static int speyside_set_bias_level(struct snd_soc_card *card,
struct snd_soc_dapm_context *dapm,
enum snd_soc_bias_level level)
{
struct snd_soc_pcm_runtime *rtd;
struct snd_soc_dai *codec_dai;
int ret;
rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[1]);
codec_dai = asoc_rtd_to_codec(rtd, 0);
if (dapm->dev != codec_dai->dev)
return 0;
switch (level) {
case SND_SOC_BIAS_STANDBY:
ret = snd_soc_dai_set_sysclk(codec_dai, WM8996_SYSCLK_MCLK2,
32768, SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_pll(codec_dai, WM8996_FLL_MCLK2,
0, 0, 0);
if (ret < 0) {
pr_err("Failed to stop FLL\n");
return ret;
}
break;
default:
break;
}
return 0;
}
static int speyside_set_bias_level_post(struct snd_soc_card *card,
struct snd_soc_dapm_context *dapm,
enum snd_soc_bias_level level)
{
struct snd_soc_pcm_runtime *rtd;
struct snd_soc_dai *codec_dai;
int ret;
rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[1]);
codec_dai = asoc_rtd_to_codec(rtd, 0);
if (dapm->dev != codec_dai->dev)
return 0;
switch (level) {
case SND_SOC_BIAS_PREPARE:
if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) {
ret = snd_soc_dai_set_pll(codec_dai, 0,
WM8996_FLL_MCLK2,
32768, MCLK_AUDIO_RATE);
if (ret < 0) {
pr_err("Failed to start FLL\n");
return ret;
}
ret = snd_soc_dai_set_sysclk(codec_dai,
WM8996_SYSCLK_FLL,
MCLK_AUDIO_RATE,
SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
}
break;
default:
break;
}
card->dapm.bias_level = level;
return 0;
}
static struct snd_soc_jack speyside_headset;
/* Headset jack detection DAPM pins */
static struct snd_soc_jack_pin speyside_headset_pins[] = {
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
};
/* Default the headphone selection to active high */
static int speyside_jack_polarity;
static int speyside_get_micbias(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)
{
if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0))
return 1;
if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0))
return 1;
return 0;
}
static void speyside_set_polarity(struct snd_soc_component *component,
int polarity)
{
speyside_jack_polarity = !polarity;
gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
/* Re-run DAPM to make sure we're using the correct mic bias */
snd_soc_dapm_sync(snd_soc_component_get_dapm(component));
}
static int speyside_wm0010_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
int ret;
ret = snd_soc_dai_set_sysclk(dai, 0, MCLK_AUDIO_RATE, 0);
if (ret < 0)
return ret;
return 0;
}
static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
struct snd_soc_component *component = dai->component;
int ret;
ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0);
if (ret < 0)
return ret;
ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL");
if (ret != 0)
pr_err("Failed to request HP_SEL GPIO: %d\n", ret);
gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity);
ret = snd_soc_card_jack_new_pins(rtd->card, "Headset",
SND_JACK_LINEOUT | SND_JACK_HEADSET |
SND_JACK_BTN_0,
&speyside_headset,
speyside_headset_pins,
ARRAY_SIZE(speyside_headset_pins));
if (ret)
return ret;
wm8996_detect(component, &speyside_headset, speyside_set_polarity);
return 0;
}
static int speyside_late_probe(struct snd_soc_card *card)
{
snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC");
snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC");
snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker");
snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output");
snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input");
return 0;
}
static const struct snd_soc_pcm_stream dsp_codec_params = {
.formats = SNDRV_PCM_FMTBIT_S32_LE,
.rate_min = 48000,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
};
SND_SOC_DAILINK_DEFS(cpu_dsp,
DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")),
DAILINK_COMP_ARRAY(COMP_CODEC("spi0.0", "wm0010-sdi1")),
DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0")));
SND_SOC_DAILINK_DEFS(dsp_codec,
DAILINK_COMP_ARRAY(COMP_CPU("wm0010-sdi2")),
DAILINK_COMP_ARRAY(COMP_CODEC("wm8996.1-001a", "wm8996-aif1")));
SND_SOC_DAILINK_DEFS(baseband,
DAILINK_COMP_ARRAY(COMP_CPU("wm8996-aif2")),
DAILINK_COMP_ARRAY(COMP_CODEC("wm1250-ev1.1-0027", "wm1250-ev1")));
static struct snd_soc_dai_link speyside_dai[] = {
{
.name = "CPU-DSP",
.stream_name = "CPU-DSP",
.init = speyside_wm0010_init,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBM_CFM,
SND_SOC_DAILINK_REG(cpu_dsp),
},
{
.name = "DSP-CODEC",
.stream_name = "DSP-CODEC",
.init = speyside_wm8996_init,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBM_CFM,
.params = &dsp_codec_params,
.ignore_suspend = 1,
SND_SOC_DAILINK_REG(dsp_codec),
},
{
.name = "Baseband",
.stream_name = "Baseband",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBM_CFM,
.ignore_suspend = 1,
SND_SOC_DAILINK_REG(baseband),
},
};
static int speyside_wm9081_init(struct snd_soc_component *component)
{
/* At any time the WM9081 is active it will have this clock */
return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0,
MCLK_AUDIO_RATE, 0);
}
static struct snd_soc_aux_dev speyside_aux_dev[] = {
{
.dlc = COMP_AUX("wm9081.1-006c"),
.init = speyside_wm9081_init,
},
};
static struct snd_soc_codec_conf speyside_codec_conf[] = {
{
.dlc = COMP_CODEC_CONF("wm9081.1-006c"),
.name_prefix = "Sub",
},
};
static const struct snd_kcontrol_new controls[] = {
SOC_DAPM_PIN_SWITCH("Main Speaker"),
SOC_DAPM_PIN_SWITCH("Main DMIC"),
SOC_DAPM_PIN_SWITCH("Main AMIC"),
SOC_DAPM_PIN_SWITCH("WM1250 Input"),
SOC_DAPM_PIN_SWITCH("WM1250 Output"),
SOC_DAPM_PIN_SWITCH("Headphone"),
};
static const struct snd_soc_dapm_widget widgets[] = {
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_SPK("Main Speaker", NULL),
SND_SOC_DAPM_MIC("Main AMIC", NULL),
SND_SOC_DAPM_MIC("Main DMIC", NULL),
};
static const struct snd_soc_dapm_route audio_paths[] = {
{ "IN1RN", NULL, "MICB1" },
{ "IN1RP", NULL, "MICB1" },
{ "IN1RN", NULL, "MICB2" },
{ "IN1RP", NULL, "MICB2" },
{ "MICB1", NULL, "Headset Mic", speyside_get_micbias },
{ "MICB2", NULL, "Headset Mic", speyside_get_micbias },
{ "IN1LP", NULL, "MICB2" },
{ "IN1RN", NULL, "MICB1" },
{ "MICB2", NULL, "Main AMIC" },
{ "DMIC1DAT", NULL, "MICB1" },
{ "DMIC2DAT", NULL, "MICB1" },
{ "MICB1", NULL, "Main DMIC" },
{ "Headphone", NULL, "HPOUT1L" },
{ "Headphone", NULL, "HPOUT1R" },
{ "Sub IN1", NULL, "HPOUT2L" },
{ "Sub IN2", NULL, "HPOUT2R" },
{ "Main Speaker", NULL, "Sub SPKN" },
{ "Main Speaker", NULL, "Sub SPKP" },
{ "Main Speaker", NULL, "SPKDAT" },
};
static struct snd_soc_card speyside = {
.name = "Speyside",
.owner = THIS_MODULE,
.dai_link = speyside_dai,
.num_links = ARRAY_SIZE(speyside_dai),
.aux_dev = speyside_aux_dev,
.num_aux_devs = ARRAY_SIZE(speyside_aux_dev),
.codec_conf = speyside_codec_conf,
.num_configs = ARRAY_SIZE(speyside_codec_conf),
.set_bias_level = speyside_set_bias_level,
.set_bias_level_post = speyside_set_bias_level_post,
.controls = controls,
.num_controls = ARRAY_SIZE(controls),
.dapm_widgets = widgets,
.num_dapm_widgets = ARRAY_SIZE(widgets),
.dapm_routes = audio_paths,
.num_dapm_routes = ARRAY_SIZE(audio_paths),
.fully_routed = true,
.late_probe = speyside_late_probe,
};
static int speyside_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &speyside;
int ret;
card->dev = &pdev->dev;
ret = devm_snd_soc_register_card(&pdev->dev, card);
if (ret)
dev_err_probe(&pdev->dev, ret, "snd_soc_register_card() failed\n");
return ret;
}
static struct platform_driver speyside_driver = {
.driver = {
.name = "speyside",
.pm = &snd_soc_pm_ops,
},
.probe = speyside_probe,
};
module_platform_driver(speyside_driver);
MODULE_DESCRIPTION("Speyside audio support");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:speyside");
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