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, "ehdaudio")) 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"); 261