sound/soc/intel/boards/skl_hda_dsp_generic.c

   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
  19 static 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
  29 static 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
  64 SND_SOC_DAILINK_DEF(dummy_codec,
  65         DAILINK_COMP_ARRAY(COMP_CODEC("snd-soc-dummy", "snd-soc-dummy-dai")));
  66
  67 static int skl_hda_card_late_probe(struct snd_soc_card *card)
  68 {
  69         return skl_hda_hdmi_jack_init(card);
  70 }
  71
  72 static int
  73 skl_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
  98 static 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
 109 static 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
 121 static 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
 177 static 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
 200 static 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
 246 static 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
 254 module_platform_driver(skl_hda_audio)
 255
 256 /* Module information */
 257 MODULE_DESCRIPTION("SKL/KBL/BXT/APL HDA Generic Machine driver");
 258 MODULE_AUTHOR("Rakesh Ughreja <rakesh.a.ughreja@intel.com>");
 259 MODULE_LICENSE("GPL v2");
 260 MODULE_ALIAS("platform:skl_hda_dsp_generic");