1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright(c) 2015-18 Intel Corporation.
5 * Machine Driver for SKL+ platforms with DSP and iDisp, HDA Codecs
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"
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),
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"},
37 { "Analog Out", NULL, "Codec Output Pin1" },
38 { "Digital Out", NULL, "Codec Output Pin2" },
39 { "Alt Analog Out", NULL, "Codec Output Pin3" },
41 { "Codec Input Pin1", NULL, "Analog In" },
42 { "Codec Input Pin2", NULL, "Digital In" },
43 { "Codec Input Pin3", NULL, "Alt Analog In" },
46 {"DMic", NULL, "SoC DMIC"},
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" },
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" },
64 SND_SOC_DAILINK_DEF(dummy_codec,
65 DAILINK_COMP_ARRAY(COMP_CODEC("snd-soc-dummy", "snd-soc-dummy-dai")));
67 static int skl_hda_card_late_probe(struct snd_soc_card *card)
69 return skl_hda_hdmi_jack_init(card);
73 skl_hda_add_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *link)
75 struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card);
78 dev_dbg(card->dev, "%s: dai link name - %s\n", __func__, link->name);
79 link->platforms->name = ctx->platform_name;
82 if (strstr(link->name, "HDMI")) {
83 ret = skl_hda_hdmi_add_pcm(card, ctx->pcm_count);
95 static struct snd_soc_card hda_soc_card = {
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,
106 static char hda_soc_components[30];
108 #define IDISP_DAI_COUNT 3
109 #define HDAC_DAI_COUNT 2
110 #define DMIC_DAI_COUNT 2
112 /* there are two routes per iDisp output */
113 #define IDISP_ROUTE_COUNT (IDISP_DAI_COUNT * 2)
114 #define IDISP_CODEC_MASK 0x4
116 static int skl_hda_fill_card_info(struct snd_soc_acpi_mach_params *mach_params)
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;
123 codec_mask = mach_params->codec_mask;
124 codec_count = hweight_long(codec_mask);
125 idisp_mask = codec_mask & IDISP_CODEC_MASK;
127 if (!codec_count || codec_count > 2 ||
128 (codec_count == 2 && !idisp_mask))
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;
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
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 +
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);
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);
162 card->num_links = num_links;
163 card->num_dapm_routes = num_route;
165 for_each_card_prelinks(card, i, dai_link)
166 dai_link->platforms->name = mach_params->platform;
171 static int skl_hda_audio_probe(struct platform_device *pdev)
173 struct snd_soc_acpi_mach *mach;
174 struct skl_hda_private *ctx;
177 dev_dbg(&pdev->dev, "%s: entry\n", __func__);
179 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
183 INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
185 mach = pdev->dev.platform_data;
189 ret = skl_hda_fill_card_info(&mach->mach_params);
191 dev_err(&pdev->dev, "Unsupported HDAudio/iDisp configuration found\n");
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;
200 hda_soc_card.dev = &pdev->dev;
201 snd_soc_card_set_drvdata(&hda_soc_card, ctx);
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;
209 return devm_snd_soc_register_card(&pdev->dev, &hda_soc_card);
212 static struct platform_driver skl_hda_audio = {
213 .probe = skl_hda_audio_probe,
215 .name = "skl_hda_dsp_generic",
216 .pm = &snd_soc_pm_ops,
220 module_platform_driver(skl_hda_audio)
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");