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// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright(c) 2022 Intel Corporation. All rights reserved.
/*
* sof_rt1308.c - ASoc Machine driver for Intel platforms
* with RT1308 codec.
*/
#include <linux/acpi.h>
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/sof.h>
#include "../../codecs/rt1308.h"
#define SOF_RT1308_SSP_CODEC(quirk) ((quirk) & GENMASK(3, 0))
#define SOF_RT1308_SSP_CODEC_MASK (GENMASK(3, 0))
/* HDMI capture*/
#define SOF_SSP_HDMI_CAPTURE_PRESENT BIT(4)
#define SOF_NO_OF_HDMI_CAPTURE_SSP_SHIFT 5
#define SOF_NO_OF_HDMI_CAPTURE_SSP_MASK (GENMASK(6, 5))
#define SOF_NO_OF_HDMI_CAPTURE_SSP(quirk) \
(((quirk) << SOF_NO_OF_HDMI_CAPTURE_SSP_SHIFT) & SOF_NO_OF_HDMI_CAPTURE_SSP_MASK)
#define SOF_HDMI_CAPTURE_1_SSP_SHIFT 7
#define SOF_HDMI_CAPTURE_1_SSP_MASK (GENMASK(9, 7))
#define SOF_HDMI_CAPTURE_1_SSP(quirk) \
(((quirk) << SOF_HDMI_CAPTURE_1_SSP_SHIFT) & SOF_HDMI_CAPTURE_1_SSP_MASK)
#define SOF_HDMI_CAPTURE_2_SSP_SHIFT 10
#define SOF_HDMI_CAPTURE_2_SSP_MASK (GENMASK(12, 10))
#define SOF_HDMI_CAPTURE_2_SSP(quirk) \
(((quirk) << SOF_HDMI_CAPTURE_2_SSP_SHIFT) & SOF_HDMI_CAPTURE_2_SSP_MASK)
/* Default: SSP2 */
static unsigned long sof_rt1308_quirk = SOF_RT1308_SSP_CODEC(2);
static const struct snd_soc_dapm_widget sof_rt1308_dapm_widgets[] = {
SND_SOC_DAPM_SPK("Speakers", NULL),
SND_SOC_DAPM_MIC("SoC DMIC", NULL),
};
static const struct snd_kcontrol_new sof_rt1308_controls[] = {
SOC_DAPM_PIN_SWITCH("Speakers"),
};
static const struct snd_soc_dapm_route sof_rt1308_dapm_routes[] = {
{ "Speakers", NULL, "SPOL" },
{ "Speakers", NULL, "SPOR" },
/* digital mics */
{"DMic", NULL, "SoC DMIC"},
};
static struct snd_soc_card sof_rt1308_card = {
.name = "rt1308",
.owner = THIS_MODULE,
.controls = sof_rt1308_controls,
.num_controls = ARRAY_SIZE(sof_rt1308_controls),
.dapm_widgets = sof_rt1308_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(sof_rt1308_dapm_widgets),
.dapm_routes = sof_rt1308_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(sof_rt1308_dapm_routes),
.fully_routed = true,
};
static int sof_rt1308_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
struct snd_soc_card *card = rtd->card;
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
int clk_id, clk_freq, pll_out;
int ret;
clk_id = RT1308_PLL_S_MCLK;
/* get the tplg configured mclk. */
clk_freq = sof_dai_get_mclk(rtd);
pll_out = params_rate(params) * 512;
/* Set rt1308 pll */
ret = snd_soc_dai_set_pll(codec_dai, 0, clk_id, clk_freq, pll_out);
if (ret < 0) {
dev_err(card->dev, "Failed to set RT1308 PLL: %d\n", ret);
return ret;
}
/* Set rt1308 sysclk */
ret = snd_soc_dai_set_sysclk(codec_dai, RT1308_FS_SYS_S_PLL, pll_out,
SND_SOC_CLOCK_IN);
if (ret < 0)
dev_err(card->dev, "Failed to set RT1308 SYSCLK: %d\n", ret);
return ret;
}
static struct snd_soc_dai_link_component platform_component[] = {
{
/* name might be overridden during probe */
.name = "0000:00:1f.3"
}
};
static struct snd_soc_dai_link_component rt1308_component[] = {
{
.name = "i2c-10EC1308:00",
.dai_name = "rt1308-aif",
}
};
static struct snd_soc_dai_link_component dmic_component[] = {
{
.name = "dmic-codec",
.dai_name = "dmic-hifi",
}
};
static struct snd_soc_dai_link_component dummy_component[] = {
{
.name = "snd-soc-dummy",
.dai_name = "snd-soc-dummy-dai",
}
};
/* machine stream operations */
static const struct snd_soc_ops sof_rt1308_ops = {
.hw_params = sof_rt1308_hw_params,
};
static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,
int ssp_codec,
int dmic_be_num)
{
struct snd_soc_dai_link_component *cpus;
struct snd_soc_dai_link *links;
int i, id = 0;
links = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link) *
sof_rt1308_card.num_links, GFP_KERNEL);
cpus = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component) *
sof_rt1308_card.num_links, GFP_KERNEL);
if (!links || !cpus)
return NULL;
/* HDMI-In SSP */
if (sof_rt1308_quirk & SOF_SSP_HDMI_CAPTURE_PRESENT) {
int num_of_hdmi_ssp = (sof_rt1308_quirk & SOF_NO_OF_HDMI_CAPTURE_SSP_MASK) >>
SOF_NO_OF_HDMI_CAPTURE_SSP_SHIFT;
for (i = 1; i <= num_of_hdmi_ssp; i++) {
int port = (i == 1 ? (sof_rt1308_quirk & SOF_HDMI_CAPTURE_1_SSP_MASK) >>
SOF_HDMI_CAPTURE_1_SSP_SHIFT :
(sof_rt1308_quirk & SOF_HDMI_CAPTURE_2_SSP_MASK) >>
SOF_HDMI_CAPTURE_2_SSP_SHIFT);
links[id].cpus = &cpus[id];
links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
"SSP%d Pin", port);
if (!links[id].cpus->dai_name)
return NULL;
links[id].name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-HDMI", port);
if (!links[id].name)
return NULL;
links[id].id = id;
links[id].codecs = dummy_component;
links[id].num_codecs = ARRAY_SIZE(dummy_component);
links[id].platforms = platform_component;
links[id].num_platforms = ARRAY_SIZE(platform_component);
links[id].dpcm_capture = 1;
links[id].no_pcm = 1;
links[id].num_cpus = 1;
id++;
}
}
/* codec SSP */
links[id].name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_codec);
if (!links[id].name)
return NULL;
links[id].id = id;
links[id].codecs = rt1308_component;
links[id].num_codecs = ARRAY_SIZE(rt1308_component);
links[id].platforms = platform_component;
links[id].num_platforms = ARRAY_SIZE(platform_component);
links[id].ops = &sof_rt1308_ops;
links[id].dpcm_playback = 1;
links[id].no_pcm = 1;
links[id].cpus = &cpus[id];
links[id].num_cpus = 1;
links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_codec);
if (!links[id].cpus->dai_name)
return NULL;
id++;
/* dmic */
if (dmic_be_num > 0) {
/* at least we have dmic01 */
links[id].name = "dmic01";
links[id].cpus = &cpus[id];
links[id].cpus->dai_name = "DMIC01 Pin";
if (dmic_be_num > 1) {
/* set up 2 BE links at most */
links[id + 1].name = "dmic16k";
links[id + 1].cpus = &cpus[id + 1];
links[id + 1].cpus->dai_name = "DMIC16k Pin";
dmic_be_num = 2;
}
}
for (i = 0; i < dmic_be_num; i++) {
links[id].id = id;
links[id].num_cpus = 1;
links[id].codecs = dmic_component;
links[id].num_codecs = ARRAY_SIZE(dmic_component);
links[id].platforms = platform_component;
links[id].num_platforms = ARRAY_SIZE(platform_component);
links[id].ignore_suspend = 1;
links[id].dpcm_capture = 1;
links[id].no_pcm = 1;
id++;
}
return links;
}
static int sof_rt1308_probe(struct platform_device *pdev)
{
struct snd_soc_dai_link *dai_links;
struct snd_soc_acpi_mach *mach;
int dmic_be_num;
int ret, ssp_codec;
if (pdev->id_entry && pdev->id_entry->driver_data)
sof_rt1308_quirk = (unsigned long)pdev->id_entry->driver_data;
mach = pdev->dev.platform_data;
dmic_be_num = mach->mach_params.dmic_num;
ssp_codec = sof_rt1308_quirk & SOF_RT1308_SSP_CODEC_MASK;
/* set number of dai links */
sof_rt1308_card.num_links = 1 + dmic_be_num;
if (sof_rt1308_quirk & SOF_SSP_HDMI_CAPTURE_PRESENT)
sof_rt1308_card.num_links += (sof_rt1308_quirk & SOF_NO_OF_HDMI_CAPTURE_SSP_MASK) >>
SOF_NO_OF_HDMI_CAPTURE_SSP_SHIFT;
dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec, dmic_be_num);
if (!dai_links)
return -ENOMEM;
sof_rt1308_card.dai_link = dai_links;
sof_rt1308_card.dev = &pdev->dev;
/* set platform name for each dailink */
ret = snd_soc_fixup_dai_links_platform_name(&sof_rt1308_card,
mach->mach_params.platform);
if (ret)
return ret;
snd_soc_card_set_drvdata(&sof_rt1308_card, NULL);
return devm_snd_soc_register_card(&pdev->dev, &sof_rt1308_card);
}
static const struct platform_device_id board_ids[] = {
{
.name = "sof_rt1308",
},
{
.name = "tgl_rt1308_hdmi_ssp",
.driver_data = (kernel_ulong_t)(SOF_RT1308_SSP_CODEC(2) |
SOF_NO_OF_HDMI_CAPTURE_SSP(2) |
SOF_HDMI_CAPTURE_1_SSP(1) |
SOF_HDMI_CAPTURE_2_SSP(5) |
SOF_SSP_HDMI_CAPTURE_PRESENT),
},
{ }
};
MODULE_DEVICE_TABLE(platform, board_ids);
static struct platform_driver sof_rt1308_driver = {
.probe = sof_rt1308_probe,
.driver = {
.name = "sof_rt1308",
.pm = &snd_soc_pm_ops,
},
.id_table = board_ids,
};
module_platform_driver(sof_rt1308_driver);
MODULE_DESCRIPTION("ASoC Intel(R) SOF + RT1308 Machine driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:sof_rt1308");
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