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 static int skl_hda_card_late_probe(struct snd_soc_card *card) 65 { 66 return skl_hda_hdmi_jack_init(card); 67 } 68 69 static int 70 skl_hda_add_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *link) 71 { 72 struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card); 73 int ret = 0; 74 75 dev_dbg(card->dev, "dai link name - %s\n", link->name); 76 link->platforms->name = ctx->platform_name; 77 link->nonatomic = 1; 78 79 if (!ctx->idisp_codec) 80 return 0; 81 82 if (strstr(link->name, "HDMI")) { 83 ret = skl_hda_hdmi_add_pcm(card, ctx->pcm_count); 84 85 if (ret < 0) 86 return ret; 87 88 ctx->dai_index++; 89 } 90 91 ctx->pcm_count++; 92 return ret; 93 } 94 95 static struct snd_soc_card hda_soc_card = { 96 .name = "hda-dsp", 97 .owner = THIS_MODULE, 98 .dai_link = skl_hda_be_dai_links, 99 .dapm_widgets = skl_hda_widgets, 100 .dapm_routes = skl_hda_map, 101 .add_dai_link = skl_hda_add_dai_link, 102 .fully_routed = true, 103 .late_probe = skl_hda_card_late_probe, 104 }; 105 106 static char hda_soc_components[30]; 107 108 #define IDISP_DAI_COUNT 3 109 #define HDAC_DAI_COUNT 2 110 #define DMIC_DAI_COUNT 2 111 112 /* there are two routes per iDisp output */ 113 #define IDISP_ROUTE_COUNT (IDISP_DAI_COUNT * 2) 114 #define IDISP_CODEC_MASK 0x4 115 116 #define HDA_CODEC_AUTOSUSPEND_DELAY_MS 1000 117 118 static int skl_hda_fill_card_info(struct snd_soc_acpi_mach_params *mach_params) 119 { 120 struct snd_soc_card *card = &hda_soc_card; 121 struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card); 122 struct snd_soc_dai_link *dai_link; 123 u32 codec_count, codec_mask; 124 int i, num_links, num_route; 125 126 codec_mask = mach_params->codec_mask; 127 codec_count = hweight_long(codec_mask); 128 ctx->idisp_codec = !!(codec_mask & IDISP_CODEC_MASK); 129 130 if (!codec_count || codec_count > 2 || 131 (codec_count == 2 && !ctx->idisp_codec)) 132 return -EINVAL; 133 134 if (codec_mask == IDISP_CODEC_MASK) { 135 /* topology with iDisp as the only HDA codec */ 136 num_links = IDISP_DAI_COUNT + DMIC_DAI_COUNT; 137 num_route = IDISP_ROUTE_COUNT; 138 139 /* 140 * rearrange the dai link array and make the 141 * dmic dai links follow idsp dai links for only 142 * num_links of dai links need to be registered 143 * to ASoC. 144 */ 145 for (i = 0; i < DMIC_DAI_COUNT; i++) { 146 skl_hda_be_dai_links[IDISP_DAI_COUNT + i] = 147 skl_hda_be_dai_links[IDISP_DAI_COUNT + 148 HDAC_DAI_COUNT + i]; 149 } 150 } else { 151 /* topology with external and iDisp HDA codecs */ 152 num_links = ARRAY_SIZE(skl_hda_be_dai_links); 153 num_route = ARRAY_SIZE(skl_hda_map); 154 card->dapm_widgets = skl_hda_widgets; 155 card->num_dapm_widgets = ARRAY_SIZE(skl_hda_widgets); 156 if (!ctx->idisp_codec) { 157 for (i = 0; i < IDISP_DAI_COUNT; i++) { 158 skl_hda_be_dai_links[i].codecs = &asoc_dummy_dlc; 159 skl_hda_be_dai_links[i].num_codecs = 1; 160 } 161 } 162 } 163 164 card->num_links = num_links; 165 card->num_dapm_routes = num_route; 166 167 for_each_card_prelinks(card, i, dai_link) 168 dai_link->platforms->name = mach_params->platform; 169 170 return 0; 171 } 172 173 static void skl_set_hda_codec_autosuspend_delay(struct snd_soc_card *card) 174 { 175 struct snd_soc_pcm_runtime *rtd; 176 struct hdac_hda_priv *hda_pvt; 177 struct snd_soc_dai *dai; 178 179 for_each_card_rtds(card, rtd) { 180 if (!strstr(rtd->dai_link->codecs->name, "ehdaudio0D0")) 181 continue; 182 dai = asoc_rtd_to_codec(rtd, 0); 183 hda_pvt = snd_soc_component_get_drvdata(dai->component); 184 if (hda_pvt) { 185 /* 186 * all codecs are on the same bus, so it's sufficient 187 * to look up only the first one 188 */ 189 snd_hda_set_power_save(hda_pvt->codec->bus, 190 HDA_CODEC_AUTOSUSPEND_DELAY_MS); 191 break; 192 } 193 } 194 } 195 196 static int skl_hda_audio_probe(struct platform_device *pdev) 197 { 198 struct snd_soc_acpi_mach *mach; 199 struct skl_hda_private *ctx; 200 int ret; 201 202 dev_dbg(&pdev->dev, "entry\n"); 203 204 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); 205 if (!ctx) 206 return -ENOMEM; 207 208 INIT_LIST_HEAD(&ctx->hdmi_pcm_list); 209 210 mach = pdev->dev.platform_data; 211 if (!mach) 212 return -EINVAL; 213 214 snd_soc_card_set_drvdata(&hda_soc_card, ctx); 215 216 ret = skl_hda_fill_card_info(&mach->mach_params); 217 if (ret < 0) { 218 dev_err(&pdev->dev, "Unsupported HDAudio/iDisp configuration found\n"); 219 return ret; 220 } 221 222 ctx->pcm_count = hda_soc_card.num_links; 223 ctx->dai_index = 1; /* hdmi codec dai name starts from index 1 */ 224 ctx->platform_name = mach->mach_params.platform; 225 ctx->common_hdmi_codec_drv = mach->mach_params.common_hdmi_codec_drv; 226 227 hda_soc_card.dev = &pdev->dev; 228 229 if (mach->mach_params.dmic_num > 0) { 230 snprintf(hda_soc_components, sizeof(hda_soc_components), 231 "cfg-dmics:%d", mach->mach_params.dmic_num); 232 hda_soc_card.components = hda_soc_components; 233 } 234 235 ret = devm_snd_soc_register_card(&pdev->dev, &hda_soc_card); 236 if (!ret) 237 skl_set_hda_codec_autosuspend_delay(&hda_soc_card); 238 239 return ret; 240 } 241 242 static struct platform_driver skl_hda_audio = { 243 .probe = skl_hda_audio_probe, 244 .driver = { 245 .name = "skl_hda_dsp_generic", 246 .pm = &snd_soc_pm_ops, 247 }, 248 }; 249 250 module_platform_driver(skl_hda_audio) 251 252 /* Module information */ 253 MODULE_DESCRIPTION("SKL/KBL/BXT/APL HDA Generic Machine driver"); 254 MODULE_AUTHOR("Rakesh Ughreja <rakesh.a.ughreja@intel.com>"); 255 MODULE_LICENSE("GPL v2"); 256 MODULE_ALIAS("platform:skl_hda_dsp_generic"); 257 MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON); 258