#include <linux/module.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include "../../../codecs/rt274.h"
#include "../utils.h"
#define AVS_RT274_FREQ_OUT 24000000
#define AVS_RT274_BE_FIXUP_RATE 48000
#define RT274_CODEC_DAI "rt274-aif1"
static const struct snd_kcontrol_new card_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone Jack"),
SOC_DAPM_PIN_SWITCH("Mic Jack"),
};
static int
avs_rt274_clock_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *control, int event)
{
struct snd_soc_card *card = snd_soc_dapm_to_card(w->dapm);
struct snd_soc_dai *codec_dai;
int ret;
codec_dai = snd_soc_card_get_codec_dai(card, RT274_CODEC_DAI);
if (!codec_dai)
return -EINVAL;
ret = snd_soc_dai_set_sysclk(codec_dai, RT274_SCLK_S_PLL2, AVS_RT274_FREQ_OUT,
SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(codec_dai->dev, "set codec sysclk failed: %d\n", ret);
return ret;
}
if (SND_SOC_DAPM_EVENT_ON(event)) {
int ratio = 100;
snd_soc_dai_set_bclk_ratio(codec_dai, ratio);
ret = snd_soc_dai_set_pll(codec_dai, 0, RT274_PLL2_S_BCLK,
AVS_RT274_BE_FIXUP_RATE * ratio, AVS_RT274_FREQ_OUT);
if (ret) {
dev_err(codec_dai->dev, "failed to enable PLL2: %d\n", ret);
return ret;
}
}
return 0;
}
static const struct snd_soc_dapm_widget card_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_MIC("Mic Jack", NULL),
SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, avs_rt274_clock_control,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
};
static const struct snd_soc_dapm_route card_base_routes[] = {
{"Headphone Jack", NULL, "HPO Pin"},
{"MIC", NULL, "Mic Jack"},
{"Headphone Jack", NULL, "Platform Clock"},
{"MIC", NULL, "Platform Clock"},
};
static const struct snd_soc_jack_pin card_headset_pins[] = {
{
.pin = "Headphone Jack",
.mask = SND_JACK_HEADPHONE,
},
{
.pin = "Mic Jack",
.mask = SND_JACK_MICROPHONE,
},
};
static int avs_rt274_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_jack_pin *pins;
struct snd_soc_jack *jack;
struct snd_soc_card *card = runtime->card;
struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card);
int num_pins, ret;
jack = snd_soc_card_get_drvdata(card);
num_pins = ARRAY_SIZE(card_headset_pins);
pins = devm_kmemdup_array(card->dev, card_headset_pins, num_pins,
sizeof(card_headset_pins[0]), GFP_KERNEL);
if (!pins)
return -ENOMEM;
ret = snd_soc_card_jack_new_pins(card, "Headset Jack", SND_JACK_HEADSET, jack, pins,
num_pins);
if (ret)
return ret;
snd_soc_component_set_jack(component, jack, NULL);
ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24);
if (ret < 0) {
dev_err(card->dev, "can't set codec pcm format %d\n", ret);
return ret;
}
snd_soc_dapm_set_idle_bias(dapm, false);
return 0;
}
static void avs_rt274_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_rt274_be_fixup(struct snd_soc_pcm_runtime *runtime, 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);
rate->min = rate->max = AVS_RT274_BE_FIXUP_RATE;
channels->min = channels->max = 2;
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, 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;
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-INT34C2:00");
dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, RT274_CODEC_DAI);
if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
return -ENOMEM;
platform->name = dev_name(dev);
dl->num_cpus = 1;
dl->num_codecs = 1;
dl->platforms = platform;
dl->num_platforms = 1;
dl->id = 0;
dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC;
dl->init = avs_rt274_codec_init;
dl->exit = avs_rt274_codec_exit;
dl->be_hw_params_fixup = avs_rt274_be_fixup;
dl->nonatomic = 1;
dl->no_pcm = 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, RT274_CODEC_DAI);
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, RT274_CODEC_DAI);
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_rt274_probe(struct platform_device *pdev)
{
struct snd_soc_dai_link *dai_link;
struct snd_soc_acpi_mach *mach;
struct avs_mach_pdata *pdata;
struct snd_soc_card *card;
struct snd_soc_jack *jack;
struct device *dev = &pdev->dev;
int ssp_port, tdm_slot, ret;
mach = dev_get_platdata(dev);
pdata = mach->pdata;
ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
if (ret)
return ret;
ret = avs_create_dai_link(dev, 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;
if (pdata->obsolete_card_names) {
card->name = "avs_rt274";
} else {
card->driver_name = "avs_rt274";
card->long_name = card->name = "AVS I2S ALC274";
}
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);
return devm_snd_soc_register_deferrable_card(dev, card);
}
static const struct platform_device_id avs_rt274_driver_ids[] = {
{
.name = "avs_rt274",
},
{},
};
MODULE_DEVICE_TABLE(platform, avs_rt274_driver_ids);
static struct platform_driver avs_rt274_driver = {
.probe = avs_rt274_probe,
.driver = {
.name = "avs_rt274",
.pm = &snd_soc_pm_ops,
},
.id_table = avs_rt274_driver_ids,
};
module_platform_driver(avs_rt274_driver);
MODULE_DESCRIPTION("Intel rt274 machine driver");
MODULE_LICENSE("GPL");
