// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright(c) 2021-2022 Intel Corporation
//
// Author: Cezary Rojewski <[email protected]>
//
#include <linux/module.h>
#include <linux/platform_data/x86/soc.h>
#include <linux/platform_device.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include <sound/soc-dapm.h>
#include <uapi/linux/input-event-codes.h>
#include "../../../codecs/da7219.h"
#include "../utils.h"
#define DA7219_DAI_NAME "da7219-hifi"
static const struct snd_kcontrol_new card_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone Jack"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
SOC_DAPM_PIN_SWITCH("Line Out"),
};
static int platform_clock_control(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
struct snd_soc_dapm_context *dapm = w->dapm;
struct snd_soc_card *card = dapm->card;
struct snd_soc_dai *codec_dai;
int ret = 0;
codec_dai = snd_soc_card_get_codec_dai(card, DA7219_DAI_NAME);
if (!codec_dai) {
dev_err(card->dev, "Codec dai not found. Unable to set/unset codec pll\n");
return -EIO;
}
if (SND_SOC_DAPM_EVENT_OFF(event)) {
ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0);
if (ret)
dev_err(card->dev, "failed to stop PLL: %d\n", ret);
} else if (SND_SOC_DAPM_EVENT_ON(event)) {
ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL_SRM,
0, DA7219_PLL_FREQ_OUT_98304);
if (ret)
dev_err(card->dev, "failed to start PLL: %d\n", ret);
}
return ret;
}
static const struct snd_soc_dapm_widget card_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_LINE("Line Out", NULL),
SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, platform_clock_control,
SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_PRE_PMU),
};
static const struct snd_soc_dapm_route card_base_routes[] = {
/* HP jack connectors - unknown if we have jack detection */
{"Headphone Jack", NULL, "HPL"},
{"Headphone Jack", NULL, "HPR"},
{"MIC", NULL, "Headset Mic"},
{ "Headphone Jack", NULL, "Platform Clock" },
{ "Headset Mic", NULL, "Platform Clock" },
{ "Line Out", NULL, "Platform Clock" },
};
static const struct snd_soc_jack_pin card_headset_pins[] = {
{
.pin = "Headphone Jack",
.mask = SND_JACK_HEADPHONE,
},
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
{
.pin = "Line Out",
.mask = SND_JACK_LINEOUT,
},
};
static int avs_da7219_codec_init(struct snd_soc_pcm_runtime *runtime)
{
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
struct snd_soc_component *component = codec_dai->component;
struct snd_soc_card *card = runtime->card;
struct snd_soc_jack_pin *pins;
struct snd_soc_jack *jack;
int num_pins;
int clk_freq;
int ret;
jack = snd_soc_card_get_drvdata(card);
if (soc_intel_is_apl())
clk_freq = 19200000;
else /* kbl */
clk_freq = 24576000;
ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, clk_freq, SND_SOC_CLOCK_IN);
if (ret) {
dev_err(card->dev, "can't set codec sysclk configuration\n");
return ret;
}
num_pins = ARRAY_SIZE(card_headset_pins);
pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL);
if (!pins)
return -ENOMEM;
/*
* Headset buttons map to the google Reference headset.
* These can be configured by userspace.
*/
ret = snd_soc_card_jack_new_pins(card, "Headset Jack",
SND_JACK_HEADSET | SND_JACK_BTN_0 |
SND_JACK_BTN_1 | SND_JACK_BTN_2 |
SND_JACK_BTN_3 | SND_JACK_LINEOUT,
jack, pins, num_pins);
if (ret) {
dev_err(card->dev, "Headset Jack creation failed: %d\n", ret);
return ret;
}
snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
return snd_soc_component_set_jack(component, jack, NULL);
}
static void avs_da7219_codec_exit(struct snd_soc_pcm_runtime *rtd)
{
snd_soc_component_set_jack(snd_soc_rtd_to_codec(rtd, 0)->component, NULL, NULL);
}
static int
avs_da7219_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params)
{
struct snd_interval *rate, *channels;
struct snd_mask *fmt;
rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
/* The ADSP will convert the FE rate to 48k, stereo */
rate->min = rate->max = 48000;
channels->min = channels->max = 2;
/* set SSP0 to 24 bit */
snd_mask_none(fmt);
snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
return 0;
}
static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
int tdm_slot, struct snd_soc_dai_link **dai_link)
{
struct snd_soc_dai_link_component *platform;
struct snd_soc_dai_link *dl;
dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
if (!dl || !platform)
return -ENOMEM;
platform->name = platform_name;
dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port);
dl->name = devm_kasprintf(dev, GFP_KERNEL,
AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
if (!dl->name || !dl->cpus || !dl->codecs)
return -ENOMEM;
dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-DLGS7219:00");
dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, DA7219_DAI_NAME);
if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
return -ENOMEM;
dl->num_cpus = 1;
dl->num_codecs = 1;
dl->platforms = platform;
dl->num_platforms = 1;
dl->id = 0;
dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;
dl->be_hw_params_fixup = avs_da7219_be_fixup;
dl->init = avs_da7219_codec_init;
dl->exit = avs_da7219_codec_exit;
dl->nonatomic = 1;
dl->no_pcm = 1;
dl->dpcm_capture = 1;
dl->dpcm_playback = 1;
*dai_link = dl;
return 0;
}
static int avs_card_suspend_pre(struct snd_soc_card *card)
{
struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, DA7219_DAI_NAME);
return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
}
static int avs_card_resume_post(struct snd_soc_card *card)
{
struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, DA7219_DAI_NAME);
struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card);
return snd_soc_component_set_jack(codec_dai->component, jack, NULL);
}
static int avs_da7219_probe(struct platform_device *pdev)
{
struct snd_soc_dai_link *dai_link;
struct snd_soc_acpi_mach *mach;
struct snd_soc_card *card;
struct snd_soc_jack *jack;
struct device *dev = &pdev->dev;
const char *pname;
int ssp_port, tdm_slot, ret;
mach = dev_get_platdata(dev);
pname = mach->mach_params.platform;
ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
if (ret)
return ret;
ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link);
if (ret) {
dev_err(dev, "Failed to create dai link: %d", ret);
return ret;
}
jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!jack || !card)
return -ENOMEM;
card->name = "avs_da7219";
card->dev = dev;
card->owner = THIS_MODULE;
card->suspend_pre = avs_card_suspend_pre;
card->resume_post = avs_card_resume_post;
card->dai_link = dai_link;
card->num_links = 1;
card->controls = card_controls;
card->num_controls = ARRAY_SIZE(card_controls);
card->dapm_widgets = card_widgets;
card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
card->dapm_routes = card_base_routes;
card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
card->fully_routed = true;
snd_soc_card_set_drvdata(card, jack);
ret = snd_soc_fixup_dai_links_platform_name(card, pname);
if (ret)
return ret;
return devm_snd_soc_register_card(dev, card);
}
static const struct platform_device_id avs_da7219_driver_ids[] = {
{
.name = "avs_da7219",
},
{},
};
MODULE_DEVICE_TABLE(platform, avs_da7219_driver_ids);
static struct platform_driver avs_da7219_driver = {
.probe = avs_da7219_probe,
.driver = {
.name = "avs_da7219",
.pm = &snd_soc_pm_ops,
},
.id_table = avs_da7219_driver_ids,
};
module_platform_driver(avs_da7219_driver);
MODULE_DESCRIPTION("Intel da7219 machine driver");
MODULE_AUTHOR("Cezary Rojewski <[email protected]>");
MODULE_LICENSE("GPL");
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