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 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, "%s: dai link name - %s\n", __func__, link->name); 76 link->platforms->name = ctx->platform_name; 77 link->nonatomic = 1; 78 79 if (strstr(link->name, "HDMI")) { 80 ret = skl_hda_hdmi_add_pcm(card, ctx->pcm_count); 81 82 if (ret < 0) 83 return ret; 84 85 ctx->dai_index++; 86 } 87 88 ctx->pcm_count++; 89 return ret; 90 } 91 92 static struct snd_soc_card hda_soc_card = { 93 .name = "skl_hda_card", 94 .owner = THIS_MODULE, 95 .dai_link = skl_hda_be_dai_links, 96 .dapm_widgets = skl_hda_widgets, 97 .dapm_routes = skl_hda_map, 98 .add_dai_link = skl_hda_add_dai_link, 99 .fully_routed = true, 100 .late_probe = skl_hda_card_late_probe, 101 }; 102 103 #define IDISP_DAI_COUNT 3 104 #define HDAC_DAI_COUNT 2 105 #define DMIC_DAI_COUNT 2 106 107 /* there are two routes per iDisp output */ 108 #define IDISP_ROUTE_COUNT (IDISP_DAI_COUNT * 2) 109 #define IDISP_CODEC_MASK 0x4 110 111 static int skl_hda_fill_card_info(struct snd_soc_acpi_mach_params *mach_params) 112 { 113 struct snd_soc_card *card = &hda_soc_card; 114 struct snd_soc_dai_link *dai_link; 115 u32 codec_count, codec_mask; 116 int i, num_links, num_route; 117 118 codec_mask = mach_params->codec_mask; 119 codec_count = hweight_long(codec_mask); 120 121 if (codec_count == 1 && codec_mask & IDISP_CODEC_MASK) { 122 num_links = IDISP_DAI_COUNT + DMIC_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; 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 if (codec_count == 2 && codec_mask & IDISP_CODEC_MASK) { 137 num_links = ARRAY_SIZE(skl_hda_be_dai_links); 138 num_route = ARRAY_SIZE(skl_hda_map); 139 card->dapm_widgets = skl_hda_widgets; 140 card->num_dapm_widgets = ARRAY_SIZE(skl_hda_widgets); 141 } else { 142 return -EINVAL; 143 } 144 145 card->num_links = num_links; 146 card->num_dapm_routes = num_route; 147 148 for_each_card_prelinks(card, i, dai_link) 149 dai_link->platforms->name = mach_params->platform; 150 151 return 0; 152 } 153 154 static int skl_hda_audio_probe(struct platform_device *pdev) 155 { 156 struct snd_soc_acpi_mach *mach; 157 struct skl_hda_private *ctx; 158 int ret; 159 160 dev_dbg(&pdev->dev, "%s: entry\n", __func__); 161 162 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); 163 if (!ctx) 164 return -ENOMEM; 165 166 INIT_LIST_HEAD(&ctx->hdmi_pcm_list); 167 168 mach = (&pdev->dev)->platform_data; 169 if (!mach) 170 return -EINVAL; 171 172 ret = skl_hda_fill_card_info(&mach->mach_params); 173 if (ret < 0) { 174 dev_err(&pdev->dev, "Unsupported HDAudio/iDisp configuration found\n"); 175 return ret; 176 } 177 178 ctx->pcm_count = hda_soc_card.num_links; 179 ctx->dai_index = 1; /* hdmi codec dai name starts from index 1 */ 180 ctx->platform_name = mach->mach_params.platform; 181 182 hda_soc_card.dev = &pdev->dev; 183 snd_soc_card_set_drvdata(&hda_soc_card, ctx); 184 185 return devm_snd_soc_register_card(&pdev->dev, &hda_soc_card); 186 } 187 188 static struct platform_driver skl_hda_audio = { 189 .probe = skl_hda_audio_probe, 190 .driver = { 191 .name = "skl_hda_dsp_generic", 192 .pm = &snd_soc_pm_ops, 193 }, 194 }; 195 196 module_platform_driver(skl_hda_audio) 197 198 /* Module information */ 199 MODULE_DESCRIPTION("SKL/KBL/BXT/APL HDA Generic Machine driver"); 200 MODULE_AUTHOR("Rakesh Ughreja <rakesh.a.ughreja@intel.com>"); 201 MODULE_LICENSE("GPL v2"); 202 MODULE_ALIAS("platform:skl_hda_dsp_generic"); 203