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 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, "dai link name - %s\n", link->name);
76 link->platforms->name = ctx->platform_name;
77 link->nonatomic = 1;
78
79 if (!ctx->idisp_codec)
80 return 0;
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 #define IDISP_DAI_COUNT 3
96 #define HDAC_DAI_COUNT 2
97 #define DMIC_DAI_COUNT 2
98
99 /* there are two routes per iDisp output */
100 #define IDISP_ROUTE_COUNT (IDISP_DAI_COUNT * 2)
101 #define IDISP_CODEC_MASK 0x4
102
103 #define HDA_CODEC_AUTOSUSPEND_DELAY_MS 1000
104
105 static int skl_hda_fill_card_info(struct snd_soc_card *card,
106 struct snd_soc_acpi_mach_params *mach_params)
107 {
108 struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card);
109 struct snd_soc_dai_link *dai_link;
110 u32 codec_count, codec_mask;
111 int i, num_links, num_route;
112
113 codec_mask = mach_params->codec_mask;
114 codec_count = hweight_long(codec_mask);
115 ctx->idisp_codec = !!(codec_mask & IDISP_CODEC_MASK);
116
117 if (!codec_count || codec_count > 2 ||
118 (codec_count == 2 && !ctx->idisp_codec))
119 return -EINVAL;
120
121 if (codec_mask == IDISP_CODEC_MASK) {
122 /* topology with iDisp as the only HDA codec */
123 num_links = IDISP_DAI_COUNT + DMIC_DAI_COUNT;
124 num_route = IDISP_ROUTE_COUNT;
125
126 /*
127 * rearrange the dai link array and make the
128 * dmic dai links follow idsp dai links for only
129 * num_links of dai links need to be registered
130 * to ASoC.
131 */
132 for (i = 0; i < DMIC_DAI_COUNT; i++) {
133 skl_hda_be_dai_links[IDISP_DAI_COUNT + i] =
134 skl_hda_be_dai_links[IDISP_DAI_COUNT +
135 HDAC_DAI_COUNT + i];
136 }
137 } else {
138 /* topology with external and iDisp HDA codecs */
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 if (!ctx->idisp_codec) {
144 card->dapm_routes = &skl_hda_map[IDISP_ROUTE_COUNT];
145 num_route -= IDISP_ROUTE_COUNT;
146 for (i = 0; i < IDISP_DAI_COUNT; i++) {
147 skl_hda_be_dai_links[i].codecs = &snd_soc_dummy_dlc;
148 skl_hda_be_dai_links[i].num_codecs = 1;
149 }
150 }
151 }
152
153 card->num_links = num_links;
154 card->num_dapm_routes = num_route;
155
156 for_each_card_prelinks(card, i, dai_link)
157 dai_link->platforms->name = mach_params->platform;
158
159 return 0;
160 }
161
162 static void skl_set_hda_codec_autosuspend_delay(struct snd_soc_card *card)
163 {
164 struct snd_soc_pcm_runtime *rtd;
165 struct hdac_hda_priv *hda_pvt;
166 struct snd_soc_dai *dai;
167
168 for_each_card_rtds(card, rtd) {
169 if (!strstr(rtd->dai_link->codecs->name, "ehdaudio0D0"))
170 continue;
171 dai = snd_soc_rtd_to_codec(rtd, 0);
172 hda_pvt = snd_soc_component_get_drvdata(dai->component);
173 if (hda_pvt) {
174 /*
175 * all codecs are on the same bus, so it's sufficient
176 * to look up only the first one
177 */
178 snd_hda_set_power_save(hda_pvt->codec->bus,
179 HDA_CODEC_AUTOSUSPEND_DELAY_MS);
180 break;
181 }
182 }
183 }
184
185 static int skl_hda_audio_probe(struct platform_device *pdev)
186 {
187 struct snd_soc_acpi_mach *mach;
188 struct skl_hda_private *ctx;
189 struct snd_soc_card *card;
190 int ret;
191
192 dev_dbg(&pdev->dev, "entry\n");
193
194 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
195 if (!ctx)
196 return -ENOMEM;
197
198 INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
199
200 mach = pdev->dev.platform_data;
201 if (!mach)
202 return -EINVAL;
203
204 card = &ctx->card;
205 card->name = "hda-dsp",
206 card->owner = THIS_MODULE,
207 card->dai_link = skl_hda_be_dai_links,
208 card->dapm_widgets = skl_hda_widgets,
209 card->dapm_routes = skl_hda_map,
210 card->add_dai_link = skl_hda_add_dai_link,
211 card->fully_routed = true,
212 card->late_probe = skl_hda_card_late_probe,
213
214 snd_soc_card_set_drvdata(card, ctx);
215
216 ret = skl_hda_fill_card_info(card, &mach->mach_params);
217 if (ret < 0) {
218 dev_err(&pdev->dev, "Unsupported HDAudio/iDisp configuration found\n");
219 return ret;
220 }
221
222 ctx->pcm_count = card->num_links;
223 ctx->dai_index = 1; /* hdmi codec dai name starts from index 1 */
224 ctx->platform_name = mach->mach_params.platform;
225 ctx->common_hdmi_codec_drv = mach->mach_params.common_hdmi_codec_drv;
226
227 card->dev = &pdev->dev;
228 if (!snd_soc_acpi_sof_parent(&pdev->dev))
229 card->disable_route_checks = true;
230
231 if (mach->mach_params.dmic_num > 0) {
232 card->components = devm_kasprintf(card->dev, GFP_KERNEL,
233 "cfg-dmics:%d",
234 mach->mach_params.dmic_num);
235 if (!card->components)
236 return -ENOMEM;
237 }
238
239 ret = devm_snd_soc_register_card(&pdev->dev, card);
240 if (!ret)
241 skl_set_hda_codec_autosuspend_delay(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 MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON);
262
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