1 // SPDX-License-Identifier: GPL-2.0 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 (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 static int skl_hda_fill_card_info(struct snd_soc_acpi_mach_params *mach_params) 117 { 118 struct snd_soc_card *card = &hda_soc_card; 119 struct snd_soc_dai_link *dai_link; 120 u32 codec_count, codec_mask, idisp_mask; 121 int i, num_links, num_route; 122 123 codec_mask = mach_params->codec_mask; 124 codec_count = hweight_long(codec_mask); 125 idisp_mask = codec_mask & IDISP_CODEC_MASK; 126 127 if (!codec_count || codec_count > 2 || 128 (codec_count == 2 && !idisp_mask)) 129 return -EINVAL; 130 131 if (codec_mask == idisp_mask) { 132 /* topology with iDisp as the only HDA codec */ 133 num_links = IDISP_DAI_COUNT + DMIC_DAI_COUNT; 134 num_route = IDISP_ROUTE_COUNT; 135 136 /* 137 * rearrange the dai link array and make the 138 * dmic dai links follow idsp dai links for only 139 * num_links of dai links need to be registered 140 * to ASoC. 141 */ 142 for (i = 0; i < DMIC_DAI_COUNT; i++) { 143 skl_hda_be_dai_links[IDISP_DAI_COUNT + i] = 144 skl_hda_be_dai_links[IDISP_DAI_COUNT + 145 HDAC_DAI_COUNT + i]; 146 } 147 } else { 148 /* topology with external and iDisp HDA codecs */ 149 num_links = ARRAY_SIZE(skl_hda_be_dai_links); 150 num_route = ARRAY_SIZE(skl_hda_map); 151 card->dapm_widgets = skl_hda_widgets; 152 card->num_dapm_widgets = ARRAY_SIZE(skl_hda_widgets); 153 if (!idisp_mask) { 154 for (i = 0; i < IDISP_DAI_COUNT; i++) { 155 skl_hda_be_dai_links[i].codecs = dummy_codec; 156 skl_hda_be_dai_links[i].num_codecs = 157 ARRAY_SIZE(dummy_codec); 158 } 159 } 160 } 161 162 card->num_links = num_links; 163 card->num_dapm_routes = num_route; 164 165 for_each_card_prelinks(card, i, dai_link) 166 dai_link->platforms->name = mach_params->platform; 167 168 return 0; 169 } 170 171 static int skl_hda_audio_probe(struct platform_device *pdev) 172 { 173 struct snd_soc_acpi_mach *mach; 174 struct skl_hda_private *ctx; 175 int ret; 176 177 dev_dbg(&pdev->dev, "%s: entry\n", __func__); 178 179 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); 180 if (!ctx) 181 return -ENOMEM; 182 183 INIT_LIST_HEAD(&ctx->hdmi_pcm_list); 184 185 mach = pdev->dev.platform_data; 186 if (!mach) 187 return -EINVAL; 188 189 ret = skl_hda_fill_card_info(&mach->mach_params); 190 if (ret < 0) { 191 dev_err(&pdev->dev, "Unsupported HDAudio/iDisp configuration found\n"); 192 return ret; 193 } 194 195 ctx->pcm_count = hda_soc_card.num_links; 196 ctx->dai_index = 1; /* hdmi codec dai name starts from index 1 */ 197 ctx->platform_name = mach->mach_params.platform; 198 ctx->common_hdmi_codec_drv = mach->mach_params.common_hdmi_codec_drv; 199 200 hda_soc_card.dev = &pdev->dev; 201 snd_soc_card_set_drvdata(&hda_soc_card, ctx); 202 203 if (mach->mach_params.dmic_num > 0) { 204 snprintf(hda_soc_components, sizeof(hda_soc_components), 205 "cfg-dmics:%d", mach->mach_params.dmic_num); 206 hda_soc_card.components = hda_soc_components; 207 } 208 209 return devm_snd_soc_register_card(&pdev->dev, &hda_soc_card); 210 } 211 212 static struct platform_driver skl_hda_audio = { 213 .probe = skl_hda_audio_probe, 214 .driver = { 215 .name = "skl_hda_dsp_generic", 216 .pm = &snd_soc_pm_ops, 217 }, 218 }; 219 220 module_platform_driver(skl_hda_audio) 221 222 /* Module information */ 223 MODULE_DESCRIPTION("SKL/KBL/BXT/APL HDA Generic Machine driver"); 224 MODULE_AUTHOR("Rakesh Ughreja <rakesh.a.ughreja@intel.com>"); 225 MODULE_LICENSE("GPL v2"); 226 MODULE_ALIAS("platform:skl_hda_dsp_generic"); 227