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 = "hda-dsp", 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 static char hda_soc_components[30]; 104 105 #define IDISP_DAI_COUNT 3 106 #define HDAC_DAI_COUNT 2 107 #define DMIC_DAI_COUNT 2 108 109 /* there are two routes per iDisp output */ 110 #define IDISP_ROUTE_COUNT (IDISP_DAI_COUNT * 2) 111 #define IDISP_CODEC_MASK 0x4 112 113 static int skl_hda_fill_card_info(struct snd_soc_acpi_mach_params *mach_params) 114 { 115 struct snd_soc_card *card = &hda_soc_card; 116 struct snd_soc_dai_link *dai_link; 117 u32 codec_count, codec_mask; 118 int i, num_links, num_route; 119 120 codec_mask = mach_params->codec_mask; 121 codec_count = hweight_long(codec_mask); 122 123 if (codec_count == 1 && codec_mask & IDISP_CODEC_MASK) { 124 num_links = IDISP_DAI_COUNT + DMIC_DAI_COUNT; 125 num_route = IDISP_ROUTE_COUNT; 126 127 /* 128 * rearrange the dai link array and make the 129 * dmic dai links follow idsp dai links for only 130 * num_links of dai links need to be registered 131 * to ASoC. 132 */ 133 for (i = 0; i < DMIC_DAI_COUNT; i++) { 134 skl_hda_be_dai_links[IDISP_DAI_COUNT + i] = 135 skl_hda_be_dai_links[IDISP_DAI_COUNT + 136 HDAC_DAI_COUNT + i]; 137 } 138 } else if (codec_count == 2 && codec_mask & IDISP_CODEC_MASK) { 139 num_links = ARRAY_SIZE(skl_hda_be_dai_links); 140 num_route = ARRAY_SIZE(skl_hda_map); 141 card->dapm_widgets = skl_hda_widgets; 142 card->num_dapm_widgets = ARRAY_SIZE(skl_hda_widgets); 143 } else { 144 return -EINVAL; 145 } 146 147 card->num_links = num_links; 148 card->num_dapm_routes = num_route; 149 150 for_each_card_prelinks(card, i, dai_link) 151 dai_link->platforms->name = mach_params->platform; 152 153 return 0; 154 } 155 156 static int skl_hda_audio_probe(struct platform_device *pdev) 157 { 158 struct snd_soc_acpi_mach *mach; 159 struct skl_hda_private *ctx; 160 int ret; 161 162 dev_dbg(&pdev->dev, "%s: entry\n", __func__); 163 164 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); 165 if (!ctx) 166 return -ENOMEM; 167 168 INIT_LIST_HEAD(&ctx->hdmi_pcm_list); 169 170 mach = (&pdev->dev)->platform_data; 171 if (!mach) 172 return -EINVAL; 173 174 ret = skl_hda_fill_card_info(&mach->mach_params); 175 if (ret < 0) { 176 dev_err(&pdev->dev, "Unsupported HDAudio/iDisp configuration found\n"); 177 return ret; 178 } 179 180 ctx->pcm_count = hda_soc_card.num_links; 181 ctx->dai_index = 1; /* hdmi codec dai name starts from index 1 */ 182 ctx->platform_name = mach->mach_params.platform; 183 ctx->common_hdmi_codec_drv = mach->mach_params.common_hdmi_codec_drv; 184 185 hda_soc_card.dev = &pdev->dev; 186 snd_soc_card_set_drvdata(&hda_soc_card, ctx); 187 188 if (mach->mach_params.dmic_num > 0) { 189 snprintf(hda_soc_components, sizeof(hda_soc_components), 190 "cfg-dmics:%d", mach->mach_params.dmic_num); 191 hda_soc_card.components = hda_soc_components; 192 } 193 194 return devm_snd_soc_register_card(&pdev->dev, &hda_soc_card); 195 } 196 197 static struct platform_driver skl_hda_audio = { 198 .probe = skl_hda_audio_probe, 199 .driver = { 200 .name = "skl_hda_dsp_generic", 201 .pm = &snd_soc_pm_ops, 202 }, 203 }; 204 205 module_platform_driver(skl_hda_audio) 206 207 /* Module information */ 208 MODULE_DESCRIPTION("SKL/KBL/BXT/APL HDA Generic Machine driver"); 209 MODULE_AUTHOR("Rakesh Ughreja <rakesh.a.ughreja@intel.com>"); 210 MODULE_LICENSE("GPL v2"); 211 MODULE_ALIAS("platform:skl_hda_dsp_generic"); 212