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 "skl_hda_dsp_common.h" 17 18 static const struct snd_soc_dapm_widget skl_hda_widgets[] = { 19 SND_SOC_DAPM_HP("Analog Out", NULL), 20 SND_SOC_DAPM_MIC("Analog In", NULL), 21 SND_SOC_DAPM_HP("Alt Analog Out", NULL), 22 SND_SOC_DAPM_MIC("Alt Analog In", NULL), 23 SND_SOC_DAPM_SPK("Digital Out", NULL), 24 SND_SOC_DAPM_MIC("Digital In", NULL), 25 SND_SOC_DAPM_MIC("SoC DMIC", NULL), 26 }; 27 28 static const struct snd_soc_dapm_route skl_hda_map[] = { 29 { "hifi3", NULL, "iDisp3 Tx"}, 30 { "iDisp3 Tx", NULL, "iDisp3_out"}, 31 { "hifi2", NULL, "iDisp2 Tx"}, 32 { "iDisp2 Tx", NULL, "iDisp2_out"}, 33 { "hifi1", NULL, "iDisp1 Tx"}, 34 { "iDisp1 Tx", NULL, "iDisp1_out"}, 35 36 { "Analog Out", NULL, "Codec Output Pin1" }, 37 { "Digital Out", NULL, "Codec Output Pin2" }, 38 { "Alt Analog Out", NULL, "Codec Output Pin3" }, 39 40 { "Codec Input Pin1", NULL, "Analog In" }, 41 { "Codec Input Pin2", NULL, "Digital In" }, 42 { "Codec Input Pin3", NULL, "Alt Analog In" }, 43 44 /* digital mics */ 45 {"DMic", NULL, "SoC DMIC"}, 46 47 /* CODEC BE connections */ 48 { "Analog Codec Playback", NULL, "Analog CPU Playback" }, 49 { "Analog CPU Playback", NULL, "codec0_out" }, 50 { "Digital Codec Playback", NULL, "Digital CPU Playback" }, 51 { "Digital CPU Playback", NULL, "codec1_out" }, 52 { "Alt Analog Codec Playback", NULL, "Alt Analog CPU Playback" }, 53 { "Alt Analog CPU Playback", NULL, "codec2_out" }, 54 55 { "codec0_in", NULL, "Analog CPU Capture" }, 56 { "Analog CPU Capture", NULL, "Analog Codec Capture" }, 57 { "codec1_in", NULL, "Digital CPU Capture" }, 58 { "Digital CPU Capture", NULL, "Digital Codec Capture" }, 59 { "codec2_in", NULL, "Alt Analog CPU Capture" }, 60 { "Alt Analog CPU Capture", NULL, "Alt Analog Codec Capture" }, 61 }; 62 63 static int skl_hda_card_late_probe(struct snd_soc_card *card) 64 { 65 return skl_hda_hdmi_jack_init(card); 66 } 67 68 static int 69 skl_hda_add_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *link) 70 { 71 struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card); 72 int ret = 0; 73 74 dev_dbg(card->dev, "dai link name - %s\n", link->name); 75 link->platforms->name = ctx->platform_name; 76 link->nonatomic = 1; 77 78 if (!ctx->hdmi.idisp_codec) 79 return 0; 80 81 if (strstr(link->name, "HDMI")) { 82 ret = skl_hda_hdmi_add_pcm(card, ctx->pcm_count); 83 84 if (ret < 0) 85 return ret; 86 87 ctx->dai_index++; 88 } 89 90 ctx->pcm_count++; 91 return ret; 92 } 93 94 #define IDISP_DAI_COUNT 3 95 #define HDAC_DAI_COUNT 2 96 #define DMIC_DAI_COUNT 2 97 #define BT_DAI_COUNT 1 98 99 /* there are two routes per iDisp output */ 100 #define IDISP_ROUTE_COUNT (IDISP_DAI_COUNT * 2) 101 102 #define HDA_CODEC_AUTOSUSPEND_DELAY_MS 1000 103 104 static int skl_hda_fill_card_info(struct device *dev, struct snd_soc_card *card, 105 struct snd_soc_acpi_mach_params *mach_params) 106 { 107 struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card); 108 struct snd_soc_dai_link *dai_link; 109 struct snd_soc_dai_link *bt_link; 110 u32 codec_count, codec_mask; 111 int i, num_links, num_route; 112 113 codec_mask = mach_params->codec_mask; 114 codec_count = hweight_long(codec_mask); 115 116 if (!codec_count || codec_count > 2 || 117 (codec_count == 2 && !ctx->hdmi.idisp_codec)) 118 return -EINVAL; 119 120 if (codec_mask == IDISP_CODEC_MASK) { 121 /* topology with iDisp as the only HDA codec */ 122 num_links = IDISP_DAI_COUNT + DMIC_DAI_COUNT + BT_DAI_COUNT; 123 num_route = IDISP_ROUTE_COUNT; 124 125 /* 126 * rearrange the dai link array and make the 127 * dmic dai links follow idsp dai links for only 128 * num_links of dai links need to be registered 129 * to ASoC. 130 */ 131 for (i = 0; i < (DMIC_DAI_COUNT + BT_DAI_COUNT); i++) { 132 skl_hda_be_dai_links[IDISP_DAI_COUNT + i] = 133 skl_hda_be_dai_links[IDISP_DAI_COUNT + 134 HDAC_DAI_COUNT + i]; 135 } 136 } else { 137 /* topology with external and iDisp HDA codecs */ 138 num_links = ARRAY_SIZE(skl_hda_be_dai_links); 139 num_route = ARRAY_SIZE(skl_hda_map); 140 card->dapm_widgets = skl_hda_widgets; 141 card->num_dapm_widgets = ARRAY_SIZE(skl_hda_widgets); 142 if (!ctx->hdmi.idisp_codec) { 143 card->dapm_routes = &skl_hda_map[IDISP_ROUTE_COUNT]; 144 num_route -= IDISP_ROUTE_COUNT; 145 for (i = 0; i < IDISP_DAI_COUNT; i++) { 146 skl_hda_be_dai_links[i].codecs = &snd_soc_dummy_dlc; 147 skl_hda_be_dai_links[i].num_codecs = 1; 148 } 149 } 150 } 151 152 if (!ctx->bt_offload_present) { 153 /* remove last link since bt audio offload is not supported */ 154 num_links -= BT_DAI_COUNT; 155 } else { 156 if (codec_mask == IDISP_CODEC_MASK) 157 bt_link = &skl_hda_be_dai_links[IDISP_DAI_COUNT + DMIC_DAI_COUNT]; 158 else 159 bt_link = &skl_hda_be_dai_links[IDISP_DAI_COUNT + HDAC_DAI_COUNT + DMIC_DAI_COUNT]; 160 161 /* complete the link name and dai name with SSP port number */ 162 bt_link->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-BT", 163 ctx->ssp_bt); 164 if (!bt_link->name) 165 return -ENOMEM; 166 167 bt_link->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, 168 "SSP%d Pin", 169 ctx->ssp_bt); 170 if (!bt_link->cpus->dai_name) 171 return -ENOMEM; 172 } 173 174 card->num_links = num_links; 175 card->num_dapm_routes = num_route; 176 177 for_each_card_prelinks(card, i, dai_link) 178 dai_link->platforms->name = mach_params->platform; 179 180 return 0; 181 } 182 183 static void skl_set_hda_codec_autosuspend_delay(struct snd_soc_card *card) 184 { 185 struct snd_soc_pcm_runtime *rtd; 186 struct hdac_hda_priv *hda_pvt; 187 struct snd_soc_dai *dai; 188 189 for_each_card_rtds(card, rtd) { 190 if (!strstr(rtd->dai_link->codecs->name, "ehdaudio0D0")) 191 continue; 192 dai = snd_soc_rtd_to_codec(rtd, 0); 193 hda_pvt = snd_soc_component_get_drvdata(dai->component); 194 if (hda_pvt) { 195 /* 196 * all codecs are on the same bus, so it's sufficient 197 * to look up only the first one 198 */ 199 snd_hda_set_power_save(hda_pvt->codec->bus, 200 HDA_CODEC_AUTOSUSPEND_DELAY_MS); 201 break; 202 } 203 } 204 } 205 206 static int skl_hda_audio_probe(struct platform_device *pdev) 207 { 208 struct snd_soc_acpi_mach *mach = pdev->dev.platform_data; 209 struct skl_hda_private *ctx; 210 struct snd_soc_card *card; 211 int ret; 212 213 dev_dbg(&pdev->dev, "entry\n"); 214 215 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); 216 if (!ctx) 217 return -ENOMEM; 218 219 card = &ctx->card; 220 card->name = "hda-dsp", 221 card->owner = THIS_MODULE, 222 card->dai_link = skl_hda_be_dai_links, 223 card->dapm_widgets = skl_hda_widgets, 224 card->dapm_routes = skl_hda_map, 225 card->add_dai_link = skl_hda_add_dai_link, 226 card->fully_routed = true, 227 card->late_probe = skl_hda_card_late_probe, 228 229 snd_soc_card_set_drvdata(card, ctx); 230 231 if (mach->mach_params.codec_mask & IDISP_CODEC_MASK) 232 ctx->hdmi.idisp_codec = true; 233 234 if (hweight_long(mach->mach_params.bt_link_mask) == 1) { 235 ctx->bt_offload_present = true; 236 ctx->ssp_bt = fls(mach->mach_params.bt_link_mask) - 1; 237 } 238 239 ret = skl_hda_fill_card_info(&pdev->dev, card, &mach->mach_params); 240 if (ret < 0) { 241 dev_err(&pdev->dev, "Unsupported HDAudio/iDisp configuration found\n"); 242 return ret; 243 } 244 245 ctx->pcm_count = card->num_links; 246 ctx->dai_index = 1; /* hdmi codec dai name starts from index 1 */ 247 ctx->platform_name = mach->mach_params.platform; 248 249 card->dev = &pdev->dev; 250 if (!snd_soc_acpi_sof_parent(&pdev->dev)) 251 card->disable_route_checks = true; 252 253 if (mach->mach_params.dmic_num > 0) { 254 card->components = devm_kasprintf(card->dev, GFP_KERNEL, 255 "cfg-dmics:%d", 256 mach->mach_params.dmic_num); 257 if (!card->components) 258 return -ENOMEM; 259 } 260 261 ret = devm_snd_soc_register_card(&pdev->dev, card); 262 if (!ret) 263 skl_set_hda_codec_autosuspend_delay(card); 264 265 return ret; 266 } 267 268 static struct platform_driver skl_hda_audio = { 269 .probe = skl_hda_audio_probe, 270 .driver = { 271 .name = "skl_hda_dsp_generic", 272 .pm = &snd_soc_pm_ops, 273 }, 274 }; 275 276 module_platform_driver(skl_hda_audio) 277 278 /* Module information */ 279 MODULE_DESCRIPTION("SKL/KBL/BXT/APL HDA Generic Machine driver"); 280 MODULE_AUTHOR("Rakesh Ughreja <rakesh.a.ughreja@intel.com>"); 281 MODULE_LICENSE("GPL v2"); 282 MODULE_ALIAS("platform:skl_hda_dsp_generic"); 283 MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON); 284