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// SPDX-License-Identifier: GPL-2.0-only
// Copyright(c) 2015-18 Intel Corporation.
/*
* Machine Driver for SKL+ platforms with DSP and iDisp, HDA Codecs
*/
#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/soc.h>
#include <sound/soc-acpi.h>
#include "../../codecs/hdac_hdmi.h"
#include "skl_hda_dsp_common.h"
static const struct snd_soc_dapm_widget skl_hda_widgets[] = {
SND_SOC_DAPM_HP("Analog Out", NULL),
SND_SOC_DAPM_MIC("Analog In", NULL),
SND_SOC_DAPM_HP("Alt Analog Out", NULL),
SND_SOC_DAPM_MIC("Alt Analog In", NULL),
SND_SOC_DAPM_SPK("Digital Out", NULL),
SND_SOC_DAPM_MIC("Digital In", NULL),
SND_SOC_DAPM_MIC("SoC DMIC", NULL),
};
static const struct snd_soc_dapm_route skl_hda_map[] = {
{ "hifi3", NULL, "iDisp3 Tx"},
{ "iDisp3 Tx", NULL, "iDisp3_out"},
{ "hifi2", NULL, "iDisp2 Tx"},
{ "iDisp2 Tx", NULL, "iDisp2_out"},
{ "hifi1", NULL, "iDisp1 Tx"},
{ "iDisp1 Tx", NULL, "iDisp1_out"},
{ "Analog Out", NULL, "Codec Output Pin1" },
{ "Digital Out", NULL, "Codec Output Pin2" },
{ "Alt Analog Out", NULL, "Codec Output Pin3" },
{ "Codec Input Pin1", NULL, "Analog In" },
{ "Codec Input Pin2", NULL, "Digital In" },
{ "Codec Input Pin3", NULL, "Alt Analog In" },
/* digital mics */
{"DMic", NULL, "SoC DMIC"},
/* CODEC BE connections */
{ "Analog Codec Playback", NULL, "Analog CPU Playback" },
{ "Analog CPU Playback", NULL, "codec0_out" },
{ "Digital Codec Playback", NULL, "Digital CPU Playback" },
{ "Digital CPU Playback", NULL, "codec1_out" },
{ "Alt Analog Codec Playback", NULL, "Alt Analog CPU Playback" },
{ "Alt Analog CPU Playback", NULL, "codec2_out" },
{ "codec0_in", NULL, "Analog CPU Capture" },
{ "Analog CPU Capture", NULL, "Analog Codec Capture" },
{ "codec1_in", NULL, "Digital CPU Capture" },
{ "Digital CPU Capture", NULL, "Digital Codec Capture" },
{ "codec2_in", NULL, "Alt Analog CPU Capture" },
{ "Alt Analog CPU Capture", NULL, "Alt Analog Codec Capture" },
};
SND_SOC_DAILINK_DEF(dummy_codec,
DAILINK_COMP_ARRAY(COMP_CODEC("snd-soc-dummy", "snd-soc-dummy-dai")));
static int skl_hda_card_late_probe(struct snd_soc_card *card)
{
return skl_hda_hdmi_jack_init(card);
}
static int
skl_hda_add_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *link)
{
struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card);
int ret = 0;
dev_dbg(card->dev, "%s: dai link name - %s\n", __func__, link->name);
link->platforms->name = ctx->platform_name;
link->nonatomic = 1;
if (strstr(link->name, "HDMI")) {
ret = skl_hda_hdmi_add_pcm(card, ctx->pcm_count);
if (ret < 0)
return ret;
ctx->dai_index++;
}
ctx->pcm_count++;
return ret;
}
static struct snd_soc_card hda_soc_card = {
.name = "hda-dsp",
.owner = THIS_MODULE,
.dai_link = skl_hda_be_dai_links,
.dapm_widgets = skl_hda_widgets,
.dapm_routes = skl_hda_map,
.add_dai_link = skl_hda_add_dai_link,
.fully_routed = true,
.late_probe = skl_hda_card_late_probe,
};
static char hda_soc_components[30];
#define IDISP_DAI_COUNT 3
#define HDAC_DAI_COUNT 2
#define DMIC_DAI_COUNT 2
/* there are two routes per iDisp output */
#define IDISP_ROUTE_COUNT (IDISP_DAI_COUNT * 2)
#define IDISP_CODEC_MASK 0x4
#define HDA_CODEC_AUTOSUSPEND_DELAY_MS 1000
static int skl_hda_fill_card_info(struct snd_soc_acpi_mach_params *mach_params)
{
struct snd_soc_card *card = &hda_soc_card;
struct snd_soc_dai_link *dai_link;
u32 codec_count, codec_mask, idisp_mask;
int i, num_links, num_route;
codec_mask = mach_params->codec_mask;
codec_count = hweight_long(codec_mask);
idisp_mask = codec_mask & IDISP_CODEC_MASK;
if (!codec_count || codec_count > 2 ||
(codec_count == 2 && !idisp_mask))
return -EINVAL;
if (codec_mask == idisp_mask) {
/* topology with iDisp as the only HDA codec */
num_links = IDISP_DAI_COUNT + DMIC_DAI_COUNT;
num_route = IDISP_ROUTE_COUNT;
/*
* rearrange the dai link array and make the
* dmic dai links follow idsp dai links for only
* num_links of dai links need to be registered
* to ASoC.
*/
for (i = 0; i < DMIC_DAI_COUNT; i++) {
skl_hda_be_dai_links[IDISP_DAI_COUNT + i] =
skl_hda_be_dai_links[IDISP_DAI_COUNT +
HDAC_DAI_COUNT + i];
}
} else {
/* topology with external and iDisp HDA codecs */
num_links = ARRAY_SIZE(skl_hda_be_dai_links);
num_route = ARRAY_SIZE(skl_hda_map);
card->dapm_widgets = skl_hda_widgets;
card->num_dapm_widgets = ARRAY_SIZE(skl_hda_widgets);
if (!idisp_mask) {
for (i = 0; i < IDISP_DAI_COUNT; i++) {
skl_hda_be_dai_links[i].codecs = dummy_codec;
skl_hda_be_dai_links[i].num_codecs =
ARRAY_SIZE(dummy_codec);
}
}
}
card->num_links = num_links;
card->num_dapm_routes = num_route;
for_each_card_prelinks(card, i, dai_link)
dai_link->platforms->name = mach_params->platform;
return 0;
}
static void skl_set_hda_codec_autosuspend_delay(struct snd_soc_card *card)
{
struct snd_soc_pcm_runtime *rtd;
struct hdac_hda_priv *hda_pvt;
struct snd_soc_dai *dai;
for_each_card_rtds(card, rtd) {
if (!strstr(rtd->dai_link->codecs->name, "ehdaudio"))
continue;
dai = asoc_rtd_to_codec(rtd, 0);
hda_pvt = snd_soc_component_get_drvdata(dai->component);
if (hda_pvt) {
/*
* all codecs are on the same bus, so it's sufficient
* to look up only the first one
*/
snd_hda_set_power_save(hda_pvt->codec.bus,
HDA_CODEC_AUTOSUSPEND_DELAY_MS);
break;
}
}
}
static int skl_hda_audio_probe(struct platform_device *pdev)
{
struct snd_soc_acpi_mach *mach;
struct skl_hda_private *ctx;
int ret;
dev_dbg(&pdev->dev, "%s: entry\n", __func__);
ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
mach = pdev->dev.platform_data;
if (!mach)
return -EINVAL;
ret = skl_hda_fill_card_info(&mach->mach_params);
if (ret < 0) {
dev_err(&pdev->dev, "Unsupported HDAudio/iDisp configuration found\n");
return ret;
}
ctx->pcm_count = hda_soc_card.num_links;
ctx->dai_index = 1; /* hdmi codec dai name starts from index 1 */
ctx->platform_name = mach->mach_params.platform;
ctx->common_hdmi_codec_drv = mach->mach_params.common_hdmi_codec_drv;
hda_soc_card.dev = &pdev->dev;
snd_soc_card_set_drvdata(&hda_soc_card, ctx);
if (mach->mach_params.dmic_num > 0) {
snprintf(hda_soc_components, sizeof(hda_soc_components),
"cfg-dmics:%d", mach->mach_params.dmic_num);
hda_soc_card.components = hda_soc_components;
}
ret = devm_snd_soc_register_card(&pdev->dev, &hda_soc_card);
if (!ret)
skl_set_hda_codec_autosuspend_delay(&hda_soc_card);
return ret;
}
static struct platform_driver skl_hda_audio = {
.probe = skl_hda_audio_probe,
.driver = {
.name = "skl_hda_dsp_generic",
.pm = &snd_soc_pm_ops,
},
};
module_platform_driver(skl_hda_audio)
/* Module information */
MODULE_DESCRIPTION("SKL/KBL/BXT/APL HDA Generic Machine driver");
MODULE_AUTHOR("Rakesh Ughreja <rakesh.a.ughreja@intel.com>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:skl_hda_dsp_generic");
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