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// SPDX-License-Identifier: GPL-2.0
// 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 "../../codecs/hdac_hdmi.h"
#include "../skylake/skl.h"
#include "skl_hda_dsp_common.h"
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"},
};
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->platform_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 = "skl_hda_card",
.owner = THIS_MODULE,
.dai_link = skl_hda_be_dai_links,
.dapm_routes = skl_hda_map,
.add_dai_link = skl_hda_add_dai_link,
.fully_routed = true,
.late_probe = skl_hda_card_late_probe,
};
#define IDISP_DAI_COUNT 3
/* there are two routes per iDisp output */
#define IDISP_ROUTE_COUNT (IDISP_DAI_COUNT * 2)
#define IDISP_CODEC_MASK 0x4
static int skl_hda_fill_card_info(struct skl_machine_pdata *pdata)
{
struct snd_soc_card *card = &hda_soc_card;
u32 codec_count, codec_mask;
int i, num_links, num_route;
codec_mask = pdata->codec_mask;
codec_count = hweight_long(codec_mask);
if (codec_count == 1 && pdata->codec_mask & IDISP_CODEC_MASK) {
num_links = IDISP_DAI_COUNT;
num_route = IDISP_ROUTE_COUNT;
} else {
return -EINVAL;
}
card->num_links = num_links;
card->num_dapm_routes = num_route;
for (i = 0; i < num_links; i++)
skl_hda_be_dai_links[i].platform_name = pdata->platform;
return 0;
}
static int skl_hda_audio_probe(struct platform_device *pdev)
{
struct skl_machine_pdata *pdata;
struct skl_hda_private *ctx;
int ret;
dev_dbg(&pdev->dev, "%s: entry\n", __func__);
ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC);
if (!ctx)
return -ENOMEM;
INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
pdata = dev_get_drvdata(&pdev->dev);
if (!pdata)
return -EINVAL;
ret = skl_hda_fill_card_info(pdata);
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 = pdata->platform;
hda_soc_card.dev = &pdev->dev;
snd_soc_card_set_drvdata(&hda_soc_card, ctx);
return devm_snd_soc_register_card(&pdev->dev, &hda_soc_card);
}
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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