linux/sound/soc/intel/boards/skl_hda_dsp_generic.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2// Copyright(c) 2015-18 Intel Corporation.
   3
   4/*
   5 * Machine Driver for SKL+ platforms with DSP and iDisp, HDA Codecs
   6 */
   7
   8#include <linux/module.h>
   9#include <linux/platform_device.h>
  10#include <sound/core.h>
  11#include <sound/jack.h>
  12#include <sound/pcm.h>
  13#include <sound/pcm_params.h>
  14#include <sound/soc.h>
  15#include <sound/soc-acpi.h>
  16#include "../../codecs/hdac_hdmi.h"
  17#include "skl_hda_dsp_common.h"
  18
  19static const struct snd_soc_dapm_widget skl_hda_widgets[] = {
  20        SND_SOC_DAPM_HP("Analog Out", NULL),
  21        SND_SOC_DAPM_MIC("Analog In", NULL),
  22        SND_SOC_DAPM_HP("Alt Analog Out", NULL),
  23        SND_SOC_DAPM_MIC("Alt Analog In", NULL),
  24        SND_SOC_DAPM_SPK("Digital Out", NULL),
  25        SND_SOC_DAPM_MIC("Digital In", NULL),
  26        SND_SOC_DAPM_MIC("SoC DMIC", NULL),
  27};
  28
  29static const struct snd_soc_dapm_route skl_hda_map[] = {
  30        { "hifi3", NULL, "iDisp3 Tx"},
  31        { "iDisp3 Tx", NULL, "iDisp3_out"},
  32        { "hifi2", NULL, "iDisp2 Tx"},
  33        { "iDisp2 Tx", NULL, "iDisp2_out"},
  34        { "hifi1", NULL, "iDisp1 Tx"},
  35        { "iDisp1 Tx", NULL, "iDisp1_out"},
  36
  37        { "Analog Out", NULL, "Codec Output Pin1" },
  38        { "Digital Out", NULL, "Codec Output Pin2" },
  39        { "Alt Analog Out", NULL, "Codec Output Pin3" },
  40
  41        { "Codec Input Pin1", NULL, "Analog In" },
  42        { "Codec Input Pin2", NULL, "Digital In" },
  43        { "Codec Input Pin3", NULL, "Alt Analog In" },
  44
  45        /* digital mics */
  46        {"DMic", NULL, "SoC DMIC"},
  47
  48        /* CODEC BE connections */
  49        { "Analog Codec Playback", NULL, "Analog CPU Playback" },
  50        { "Analog CPU Playback", NULL, "codec0_out" },
  51        { "Digital Codec Playback", NULL, "Digital CPU Playback" },
  52        { "Digital CPU Playback", NULL, "codec1_out" },
  53        { "Alt Analog Codec Playback", NULL, "Alt Analog CPU Playback" },
  54        { "Alt Analog CPU Playback", NULL, "codec2_out" },
  55
  56        { "codec0_in", NULL, "Analog CPU Capture" },
  57        { "Analog CPU Capture", NULL, "Analog Codec Capture" },
  58        { "codec1_in", NULL, "Digital CPU Capture" },
  59        { "Digital CPU Capture", NULL, "Digital Codec Capture" },
  60        { "codec2_in", NULL, "Alt Analog CPU Capture" },
  61        { "Alt Analog CPU Capture", NULL, "Alt Analog Codec Capture" },
  62};
  63
  64SND_SOC_DAILINK_DEF(dummy_codec,
  65        DAILINK_COMP_ARRAY(COMP_CODEC("snd-soc-dummy", "snd-soc-dummy-dai")));
  66
  67static int skl_hda_card_late_probe(struct snd_soc_card *card)
  68{
  69        return skl_hda_hdmi_jack_init(card);
  70}
  71
  72static int
  73skl_hda_add_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *link)
  74{
  75        struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card);
  76        int ret = 0;
  77
  78        dev_dbg(card->dev, "%s: dai link name - %s\n", __func__, link->name);
  79        link->platforms->name = ctx->platform_name;
  80        link->nonatomic = 1;
  81
  82        if (!ctx->idisp_codec)
  83                return 0;
  84
  85        if (strstr(link->name, "HDMI")) {
  86                ret = skl_hda_hdmi_add_pcm(card, ctx->pcm_count);
  87
  88                if (ret < 0)
  89                        return ret;
  90
  91                ctx->dai_index++;
  92        }
  93
  94        ctx->pcm_count++;
  95        return ret;
  96}
  97
  98static struct snd_soc_card hda_soc_card = {
  99        .name = "hda-dsp",
 100        .owner = THIS_MODULE,
 101        .dai_link = skl_hda_be_dai_links,
 102        .dapm_widgets = skl_hda_widgets,
 103        .dapm_routes = skl_hda_map,
 104        .add_dai_link = skl_hda_add_dai_link,
 105        .fully_routed = true,
 106        .late_probe = skl_hda_card_late_probe,
 107};
 108
 109static char hda_soc_components[30];
 110
 111#define IDISP_DAI_COUNT         3
 112#define HDAC_DAI_COUNT          2
 113#define DMIC_DAI_COUNT          2
 114
 115/* there are two routes per iDisp output */
 116#define IDISP_ROUTE_COUNT       (IDISP_DAI_COUNT * 2)
 117#define IDISP_CODEC_MASK        0x4
 118
 119#define HDA_CODEC_AUTOSUSPEND_DELAY_MS 1000
 120
 121static int skl_hda_fill_card_info(struct snd_soc_acpi_mach_params *mach_params)
 122{
 123        struct snd_soc_card *card = &hda_soc_card;
 124        struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card);
 125        struct snd_soc_dai_link *dai_link;
 126        u32 codec_count, codec_mask;
 127        int i, num_links, num_route;
 128
 129        codec_mask = mach_params->codec_mask;
 130        codec_count = hweight_long(codec_mask);
 131        ctx->idisp_codec = !!(codec_mask & IDISP_CODEC_MASK);
 132
 133        if (!codec_count || codec_count > 2 ||
 134            (codec_count == 2 && !ctx->idisp_codec))
 135                return -EINVAL;
 136
 137        if (codec_mask == IDISP_CODEC_MASK) {
 138                /* topology with iDisp as the only HDA codec */
 139                num_links = IDISP_DAI_COUNT + DMIC_DAI_COUNT;
 140                num_route = IDISP_ROUTE_COUNT;
 141
 142                /*
 143                 * rearrange the dai link array and make the
 144                 * dmic dai links follow idsp dai links for only
 145                 * num_links of dai links need to be registered
 146                 * to ASoC.
 147                 */
 148                for (i = 0; i < DMIC_DAI_COUNT; i++) {
 149                        skl_hda_be_dai_links[IDISP_DAI_COUNT + i] =
 150                                skl_hda_be_dai_links[IDISP_DAI_COUNT +
 151                                        HDAC_DAI_COUNT + i];
 152                }
 153        } else {
 154                /* topology with external and iDisp HDA codecs */
 155                num_links = ARRAY_SIZE(skl_hda_be_dai_links);
 156                num_route = ARRAY_SIZE(skl_hda_map);
 157                card->dapm_widgets = skl_hda_widgets;
 158                card->num_dapm_widgets = ARRAY_SIZE(skl_hda_widgets);
 159                if (!ctx->idisp_codec) {
 160                        for (i = 0; i < IDISP_DAI_COUNT; i++) {
 161                                skl_hda_be_dai_links[i].codecs = dummy_codec;
 162                                skl_hda_be_dai_links[i].num_codecs =
 163                                        ARRAY_SIZE(dummy_codec);
 164                        }
 165                }
 166        }
 167
 168        card->num_links = num_links;
 169        card->num_dapm_routes = num_route;
 170
 171        for_each_card_prelinks(card, i, dai_link)
 172                dai_link->platforms->name = mach_params->platform;
 173
 174        return 0;
 175}
 176
 177static void skl_set_hda_codec_autosuspend_delay(struct snd_soc_card *card)
 178{
 179        struct snd_soc_pcm_runtime *rtd;
 180        struct hdac_hda_priv *hda_pvt;
 181        struct snd_soc_dai *dai;
 182
 183        for_each_card_rtds(card, rtd) {
 184                if (!strstr(rtd->dai_link->codecs->name, "ehdaudio0D0"))
 185                        continue;
 186                dai = asoc_rtd_to_codec(rtd, 0);
 187                hda_pvt = snd_soc_component_get_drvdata(dai->component);
 188                if (hda_pvt) {
 189                        /*
 190                         * all codecs are on the same bus, so it's sufficient
 191                         * to look up only the first one
 192                         */
 193                        snd_hda_set_power_save(hda_pvt->codec.bus,
 194                                               HDA_CODEC_AUTOSUSPEND_DELAY_MS);
 195                        break;
 196                }
 197        }
 198}
 199
 200static int skl_hda_audio_probe(struct platform_device *pdev)
 201{
 202        struct snd_soc_acpi_mach *mach;
 203        struct skl_hda_private *ctx;
 204        int ret;
 205
 206        dev_dbg(&pdev->dev, "%s: entry\n", __func__);
 207
 208        ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
 209        if (!ctx)
 210                return -ENOMEM;
 211
 212        INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
 213
 214        mach = pdev->dev.platform_data;
 215        if (!mach)
 216                return -EINVAL;
 217
 218        snd_soc_card_set_drvdata(&hda_soc_card, ctx);
 219
 220        ret = skl_hda_fill_card_info(&mach->mach_params);
 221        if (ret < 0) {
 222                dev_err(&pdev->dev, "Unsupported HDAudio/iDisp configuration found\n");
 223                return ret;
 224        }
 225
 226        ctx->pcm_count = hda_soc_card.num_links;
 227        ctx->dai_index = 1; /* hdmi codec dai name starts from index 1 */
 228        ctx->platform_name = mach->mach_params.platform;
 229        ctx->common_hdmi_codec_drv = mach->mach_params.common_hdmi_codec_drv;
 230
 231        hda_soc_card.dev = &pdev->dev;
 232
 233        if (mach->mach_params.dmic_num > 0) {
 234                snprintf(hda_soc_components, sizeof(hda_soc_components),
 235                                "cfg-dmics:%d", mach->mach_params.dmic_num);
 236                hda_soc_card.components = hda_soc_components;
 237        }
 238
 239        ret = devm_snd_soc_register_card(&pdev->dev, &hda_soc_card);
 240        if (!ret)
 241                skl_set_hda_codec_autosuspend_delay(&hda_soc_card);
 242
 243        return ret;
 244}
 245
 246static struct platform_driver skl_hda_audio = {
 247        .probe = skl_hda_audio_probe,
 248        .driver = {
 249                .name = "skl_hda_dsp_generic",
 250                .pm = &snd_soc_pm_ops,
 251        },
 252};
 253
 254module_platform_driver(skl_hda_audio)
 255
 256/* Module information */
 257MODULE_DESCRIPTION("SKL/KBL/BXT/APL HDA Generic Machine driver");
 258MODULE_AUTHOR("Rakesh Ughreja <rakesh.a.ughreja@intel.com>");
 259MODULE_LICENSE("GPL v2");
 260MODULE_ALIAS("platform:skl_hda_dsp_generic");
 261MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON);
 262