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 SND_SOC_DAILINK_DEF(dummy_codec,
65 DAILINK_COMP_ARRAY(COMP_CODEC("snd-soc-dummy", "snd-soc-dummy-dai")));
66
skl_hda_card_late_probe(struct snd_soc_card * card)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
skl_hda_add_dai_link(struct snd_soc_card * card,struct snd_soc_dai_link * link)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 (!ctx->idisp_codec)
83 return 0;
84
85 if (strstr(link->name, "HDMI")) {
86 ret = skl_hda_hdmi_add_pcm(card, ctx->pcm_count);
87
88 if (ret < 0)
89 return ret;
90
91 ctx->dai_index++;
92 }
93
94 ctx->pcm_count++;
95 return ret;
96 }
97
98 static struct snd_soc_card hda_soc_card = {
99 .name = "hda-dsp",
100 .owner = THIS_MODULE,
101 .dai_link = skl_hda_be_dai_links,
102 .dapm_widgets = skl_hda_widgets,
103 .dapm_routes = skl_hda_map,
104 .add_dai_link = skl_hda_add_dai_link,
105 .fully_routed = true,
106 .late_probe = skl_hda_card_late_probe,
107 };
108
109 static char hda_soc_components[30];
110
111 #define IDISP_DAI_COUNT 3
112 #define HDAC_DAI_COUNT 2
113 #define DMIC_DAI_COUNT 2
114
115 /* there are two routes per iDisp output */
116 #define IDISP_ROUTE_COUNT (IDISP_DAI_COUNT * 2)
117 #define IDISP_CODEC_MASK 0x4
118
119 #define HDA_CODEC_AUTOSUSPEND_DELAY_MS 1000
120
skl_hda_fill_card_info(struct snd_soc_acpi_mach_params * mach_params)121 static int skl_hda_fill_card_info(struct snd_soc_acpi_mach_params *mach_params)
122 {
123 struct snd_soc_card *card = &hda_soc_card;
124 struct skl_hda_private *ctx = snd_soc_card_get_drvdata(card);
125 struct snd_soc_dai_link *dai_link;
126 u32 codec_count, codec_mask;
127 int i, num_links, num_route;
128
129 codec_mask = mach_params->codec_mask;
130 codec_count = hweight_long(codec_mask);
131 ctx->idisp_codec = !!(codec_mask & IDISP_CODEC_MASK);
132
133 if (!codec_count || codec_count > 2 ||
134 (codec_count == 2 && !ctx->idisp_codec))
135 return -EINVAL;
136
137 if (codec_mask == IDISP_CODEC_MASK) {
138 /* topology with iDisp as the only HDA codec */
139 num_links = IDISP_DAI_COUNT + DMIC_DAI_COUNT;
140 num_route = IDISP_ROUTE_COUNT;
141
142 /*
143 * rearrange the dai link array and make the
144 * dmic dai links follow idsp dai links for only
145 * num_links of dai links need to be registered
146 * to ASoC.
147 */
148 for (i = 0; i < DMIC_DAI_COUNT; i++) {
149 skl_hda_be_dai_links[IDISP_DAI_COUNT + i] =
150 skl_hda_be_dai_links[IDISP_DAI_COUNT +
151 HDAC_DAI_COUNT + i];
152 }
153 } else {
154 /* topology with external and iDisp HDA codecs */
155 num_links = ARRAY_SIZE(skl_hda_be_dai_links);
156 num_route = ARRAY_SIZE(skl_hda_map);
157 card->dapm_widgets = skl_hda_widgets;
158 card->num_dapm_widgets = ARRAY_SIZE(skl_hda_widgets);
159 if (!ctx->idisp_codec) {
160 for (i = 0; i < IDISP_DAI_COUNT; i++) {
161 skl_hda_be_dai_links[i].codecs = dummy_codec;
162 skl_hda_be_dai_links[i].num_codecs =
163 ARRAY_SIZE(dummy_codec);
164 }
165 }
166 }
167
168 card->num_links = num_links;
169 card->num_dapm_routes = num_route;
170
171 for_each_card_prelinks(card, i, dai_link)
172 dai_link->platforms->name = mach_params->platform;
173
174 return 0;
175 }
176
skl_set_hda_codec_autosuspend_delay(struct snd_soc_card * card)177 static void skl_set_hda_codec_autosuspend_delay(struct snd_soc_card *card)
178 {
179 struct snd_soc_pcm_runtime *rtd;
180 struct hdac_hda_priv *hda_pvt;
181 struct snd_soc_dai *dai;
182
183 for_each_card_rtds(card, rtd) {
184 if (!strstr(rtd->dai_link->codecs->name, "ehdaudio0D0"))
185 continue;
186 dai = asoc_rtd_to_codec(rtd, 0);
187 hda_pvt = snd_soc_component_get_drvdata(dai->component);
188 if (hda_pvt) {
189 /*
190 * all codecs are on the same bus, so it's sufficient
191 * to look up only the first one
192 */
193 snd_hda_set_power_save(hda_pvt->codec.bus,
194 HDA_CODEC_AUTOSUSPEND_DELAY_MS);
195 break;
196 }
197 }
198 }
199
skl_hda_audio_probe(struct platform_device * pdev)200 static int skl_hda_audio_probe(struct platform_device *pdev)
201 {
202 struct snd_soc_acpi_mach *mach;
203 struct skl_hda_private *ctx;
204 int ret;
205
206 dev_dbg(&pdev->dev, "%s: entry\n", __func__);
207
208 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
209 if (!ctx)
210 return -ENOMEM;
211
212 INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
213
214 mach = pdev->dev.platform_data;
215 if (!mach)
216 return -EINVAL;
217
218 snd_soc_card_set_drvdata(&hda_soc_card, ctx);
219
220 ret = skl_hda_fill_card_info(&mach->mach_params);
221 if (ret < 0) {
222 dev_err(&pdev->dev, "Unsupported HDAudio/iDisp configuration found\n");
223 return ret;
224 }
225
226 ctx->pcm_count = hda_soc_card.num_links;
227 ctx->dai_index = 1; /* hdmi codec dai name starts from index 1 */
228 ctx->platform_name = mach->mach_params.platform;
229 ctx->common_hdmi_codec_drv = mach->mach_params.common_hdmi_codec_drv;
230
231 hda_soc_card.dev = &pdev->dev;
232
233 if (mach->mach_params.dmic_num > 0) {
234 snprintf(hda_soc_components, sizeof(hda_soc_components),
235 "cfg-dmics:%d", mach->mach_params.dmic_num);
236 hda_soc_card.components = hda_soc_components;
237 }
238
239 ret = devm_snd_soc_register_card(&pdev->dev, &hda_soc_card);
240 if (!ret)
241 skl_set_hda_codec_autosuspend_delay(&hda_soc_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