1 // SPDX-License-Identifier: GPL-2.0-only
2 // Copyright(c) 2018-2020 Intel Corporation.
3
4 /*
5 * Intel SOF Machine Driver for Intel platforms with TI PCM512x codec,
6 * e.g. Up or Up2 with Hifiberry DAC+ HAT
7 */
8 #include <linux/clk.h>
9 #include <linux/dmi.h>
10 #include <linux/i2c.h>
11 #include <linux/input.h>
12 #include <linux/module.h>
13 #include <linux/platform_device.h>
14 #include <linux/types.h>
15 #include <sound/core.h>
16 #include <sound/jack.h>
17 #include <sound/pcm.h>
18 #include <sound/pcm_params.h>
19 #include <sound/soc.h>
20 #include <sound/soc-acpi.h>
21 #include "../../codecs/pcm512x.h"
22 #include "../common/soc-intel-quirks.h"
23 #include "hda_dsp_common.h"
24
25 #define NAME_SIZE 32
26
27 #define SOF_PCM512X_SSP_CODEC(quirk) ((quirk) & GENMASK(3, 0))
28 #define SOF_PCM512X_SSP_CODEC_MASK (GENMASK(3, 0))
29 #define SOF_PCM512X_ENABLE_SSP_CAPTURE BIT(4)
30 #define SOF_PCM512X_ENABLE_DMIC BIT(5)
31
32 #define IDISP_CODEC_MASK 0x4
33
34 /* Default: SSP5 */
35 static unsigned long sof_pcm512x_quirk =
36 SOF_PCM512X_SSP_CODEC(5) |
37 SOF_PCM512X_ENABLE_SSP_CAPTURE |
38 SOF_PCM512X_ENABLE_DMIC;
39
40 static bool is_legacy_cpu;
41
42 struct sof_hdmi_pcm {
43 struct list_head head;
44 struct snd_soc_dai *codec_dai;
45 int device;
46 };
47
48 struct sof_card_private {
49 struct list_head hdmi_pcm_list;
50 bool idisp_codec;
51 };
52
sof_pcm512x_quirk_cb(const struct dmi_system_id * id)53 static int sof_pcm512x_quirk_cb(const struct dmi_system_id *id)
54 {
55 sof_pcm512x_quirk = (unsigned long)id->driver_data;
56 return 1;
57 }
58
59 static const struct dmi_system_id sof_pcm512x_quirk_table[] = {
60 {
61 .callback = sof_pcm512x_quirk_cb,
62 .matches = {
63 DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
64 DMI_MATCH(DMI_PRODUCT_NAME, "UP-CHT01"),
65 },
66 .driver_data = (void *)(SOF_PCM512X_SSP_CODEC(2)),
67 },
68 {}
69 };
70
sof_hdmi_init(struct snd_soc_pcm_runtime * rtd)71 static int sof_hdmi_init(struct snd_soc_pcm_runtime *rtd)
72 {
73 struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
74 struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
75 struct sof_hdmi_pcm *pcm;
76
77 pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
78 if (!pcm)
79 return -ENOMEM;
80
81 /* dai_link id is 1:1 mapped to the PCM device */
82 pcm->device = rtd->dai_link->id;
83 pcm->codec_dai = dai;
84
85 list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
86
87 return 0;
88 }
89
sof_pcm512x_codec_init(struct snd_soc_pcm_runtime * rtd)90 static int sof_pcm512x_codec_init(struct snd_soc_pcm_runtime *rtd)
91 {
92 struct snd_soc_component *codec = asoc_rtd_to_codec(rtd, 0)->component;
93
94 snd_soc_component_update_bits(codec, PCM512x_GPIO_EN, 0x08, 0x08);
95 snd_soc_component_update_bits(codec, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
96 snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1,
97 0x08, 0x08);
98
99 return 0;
100 }
101
aif1_startup(struct snd_pcm_substream * substream)102 static int aif1_startup(struct snd_pcm_substream *substream)
103 {
104 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
105 struct snd_soc_component *codec = asoc_rtd_to_codec(rtd, 0)->component;
106
107 snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1,
108 0x08, 0x08);
109
110 return 0;
111 }
112
aif1_shutdown(struct snd_pcm_substream * substream)113 static void aif1_shutdown(struct snd_pcm_substream *substream)
114 {
115 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
116 struct snd_soc_component *codec = asoc_rtd_to_codec(rtd, 0)->component;
117
118 snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1,
119 0x08, 0x00);
120 }
121
122 static const struct snd_soc_ops sof_pcm512x_ops = {
123 .startup = aif1_startup,
124 .shutdown = aif1_shutdown,
125 };
126
127 static struct snd_soc_dai_link_component platform_component[] = {
128 {
129 /* name might be overridden during probe */
130 .name = "0000:00:1f.3"
131 }
132 };
133
sof_card_late_probe(struct snd_soc_card * card)134 static int sof_card_late_probe(struct snd_soc_card *card)
135 {
136 struct sof_card_private *ctx = snd_soc_card_get_drvdata(card);
137 struct sof_hdmi_pcm *pcm;
138
139 /* HDMI is not supported by SOF on Baytrail/CherryTrail */
140 if (is_legacy_cpu)
141 return 0;
142
143 if (list_empty(&ctx->hdmi_pcm_list))
144 return -EINVAL;
145
146 if (!ctx->idisp_codec)
147 return 0;
148
149 pcm = list_first_entry(&ctx->hdmi_pcm_list, struct sof_hdmi_pcm, head);
150
151 return hda_dsp_hdmi_build_controls(card, pcm->codec_dai->component);
152 }
153
154 static const struct snd_kcontrol_new sof_controls[] = {
155 SOC_DAPM_PIN_SWITCH("Ext Spk"),
156 };
157
158 static const struct snd_soc_dapm_widget sof_widgets[] = {
159 SND_SOC_DAPM_SPK("Ext Spk", NULL),
160 };
161
162 static const struct snd_soc_dapm_widget dmic_widgets[] = {
163 SND_SOC_DAPM_MIC("SoC DMIC", NULL),
164 };
165
166 static const struct snd_soc_dapm_route sof_map[] = {
167 /* Speaker */
168 {"Ext Spk", NULL, "OUTR"},
169 {"Ext Spk", NULL, "OUTL"},
170 };
171
172 static const struct snd_soc_dapm_route dmic_map[] = {
173 /* digital mics */
174 {"DMic", NULL, "SoC DMIC"},
175 };
176
dmic_init(struct snd_soc_pcm_runtime * rtd)177 static int dmic_init(struct snd_soc_pcm_runtime *rtd)
178 {
179 struct snd_soc_card *card = rtd->card;
180 int ret;
181
182 ret = snd_soc_dapm_new_controls(&card->dapm, dmic_widgets,
183 ARRAY_SIZE(dmic_widgets));
184 if (ret) {
185 dev_err(card->dev, "DMic widget addition failed: %d\n", ret);
186 /* Don't need to add routes if widget addition failed */
187 return ret;
188 }
189
190 ret = snd_soc_dapm_add_routes(&card->dapm, dmic_map,
191 ARRAY_SIZE(dmic_map));
192
193 if (ret)
194 dev_err(card->dev, "DMic map addition failed: %d\n", ret);
195
196 return ret;
197 }
198
199 /* sof audio machine driver for pcm512x codec */
200 static struct snd_soc_card sof_audio_card_pcm512x = {
201 .name = "pcm512x",
202 .owner = THIS_MODULE,
203 .controls = sof_controls,
204 .num_controls = ARRAY_SIZE(sof_controls),
205 .dapm_widgets = sof_widgets,
206 .num_dapm_widgets = ARRAY_SIZE(sof_widgets),
207 .dapm_routes = sof_map,
208 .num_dapm_routes = ARRAY_SIZE(sof_map),
209 .fully_routed = true,
210 .late_probe = sof_card_late_probe,
211 };
212
213 SND_SOC_DAILINK_DEF(pcm512x_component,
214 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-104C5122:00", "pcm512x-hifi")));
215 SND_SOC_DAILINK_DEF(dmic_component,
216 DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", "dmic-hifi")));
217
sof_card_dai_links_create(struct device * dev,int ssp_codec,int dmic_be_num,int hdmi_num,bool idisp_codec)218 static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,
219 int ssp_codec,
220 int dmic_be_num,
221 int hdmi_num,
222 bool idisp_codec)
223 {
224 struct snd_soc_dai_link_component *idisp_components;
225 struct snd_soc_dai_link_component *cpus;
226 struct snd_soc_dai_link *links;
227 int i, id = 0;
228
229 links = devm_kcalloc(dev, sof_audio_card_pcm512x.num_links,
230 sizeof(struct snd_soc_dai_link), GFP_KERNEL);
231 cpus = devm_kcalloc(dev, sof_audio_card_pcm512x.num_links,
232 sizeof(struct snd_soc_dai_link_component), GFP_KERNEL);
233 if (!links || !cpus)
234 goto devm_err;
235
236 /* codec SSP */
237 links[id].name = devm_kasprintf(dev, GFP_KERNEL,
238 "SSP%d-Codec", ssp_codec);
239 if (!links[id].name)
240 goto devm_err;
241
242 links[id].id = id;
243 links[id].codecs = pcm512x_component;
244 links[id].num_codecs = ARRAY_SIZE(pcm512x_component);
245 links[id].platforms = platform_component;
246 links[id].num_platforms = ARRAY_SIZE(platform_component);
247 links[id].init = sof_pcm512x_codec_init;
248 links[id].ops = &sof_pcm512x_ops;
249 links[id].dpcm_playback = 1;
250 /*
251 * capture only supported with specific versions of the Hifiberry DAC+
252 */
253 if (sof_pcm512x_quirk & SOF_PCM512X_ENABLE_SSP_CAPTURE)
254 links[id].dpcm_capture = 1;
255 links[id].no_pcm = 1;
256 links[id].cpus = &cpus[id];
257 links[id].num_cpus = 1;
258 if (is_legacy_cpu) {
259 links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
260 "ssp%d-port",
261 ssp_codec);
262 if (!links[id].cpus->dai_name)
263 goto devm_err;
264 } else {
265 links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
266 "SSP%d Pin",
267 ssp_codec);
268 if (!links[id].cpus->dai_name)
269 goto devm_err;
270 }
271 id++;
272
273 /* dmic */
274 if (dmic_be_num > 0) {
275 /* at least we have dmic01 */
276 links[id].name = "dmic01";
277 links[id].cpus = &cpus[id];
278 links[id].cpus->dai_name = "DMIC01 Pin";
279 links[id].init = dmic_init;
280 if (dmic_be_num > 1) {
281 /* set up 2 BE links at most */
282 links[id + 1].name = "dmic16k";
283 links[id + 1].cpus = &cpus[id + 1];
284 links[id + 1].cpus->dai_name = "DMIC16k Pin";
285 dmic_be_num = 2;
286 }
287 }
288
289 for (i = 0; i < dmic_be_num; i++) {
290 links[id].id = id;
291 links[id].num_cpus = 1;
292 links[id].codecs = dmic_component;
293 links[id].num_codecs = ARRAY_SIZE(dmic_component);
294 links[id].platforms = platform_component;
295 links[id].num_platforms = ARRAY_SIZE(platform_component);
296 links[id].ignore_suspend = 1;
297 links[id].dpcm_capture = 1;
298 links[id].no_pcm = 1;
299 id++;
300 }
301
302 /* HDMI */
303 if (hdmi_num > 0) {
304 idisp_components = devm_kcalloc(dev, hdmi_num,
305 sizeof(struct snd_soc_dai_link_component),
306 GFP_KERNEL);
307 if (!idisp_components)
308 goto devm_err;
309 }
310 for (i = 1; i <= hdmi_num; i++) {
311 links[id].name = devm_kasprintf(dev, GFP_KERNEL,
312 "iDisp%d", i);
313 if (!links[id].name)
314 goto devm_err;
315
316 links[id].id = id;
317 links[id].cpus = &cpus[id];
318 links[id].num_cpus = 1;
319 links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
320 "iDisp%d Pin", i);
321 if (!links[id].cpus->dai_name)
322 goto devm_err;
323
324 /*
325 * topology cannot be loaded if codec is missing, so
326 * use the dummy codec if needed
327 */
328 if (idisp_codec) {
329 idisp_components[i - 1].name = "ehdaudio0D2";
330 idisp_components[i - 1].dai_name =
331 devm_kasprintf(dev, GFP_KERNEL,
332 "intel-hdmi-hifi%d", i);
333 } else {
334 idisp_components[i - 1] = asoc_dummy_dlc;
335 }
336 if (!idisp_components[i - 1].dai_name)
337 goto devm_err;
338
339 links[id].codecs = &idisp_components[i - 1];
340 links[id].num_codecs = 1;
341 links[id].platforms = platform_component;
342 links[id].num_platforms = ARRAY_SIZE(platform_component);
343 links[id].init = sof_hdmi_init;
344 links[id].dpcm_playback = 1;
345 links[id].no_pcm = 1;
346 id++;
347 }
348
349 return links;
350 devm_err:
351 return NULL;
352 }
353
sof_audio_probe(struct platform_device * pdev)354 static int sof_audio_probe(struct platform_device *pdev)
355 {
356 struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
357 struct snd_soc_dai_link *dai_links;
358 struct sof_card_private *ctx;
359 int dmic_be_num, hdmi_num;
360 int ret, ssp_codec;
361
362 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
363 if (!ctx)
364 return -ENOMEM;
365
366 hdmi_num = 0;
367 if (soc_intel_is_byt() || soc_intel_is_cht()) {
368 is_legacy_cpu = true;
369 dmic_be_num = 0;
370 /* default quirk for legacy cpu */
371 sof_pcm512x_quirk = SOF_PCM512X_SSP_CODEC(2);
372 } else {
373 dmic_be_num = 2;
374 if (mach->mach_params.common_hdmi_codec_drv &&
375 (mach->mach_params.codec_mask & IDISP_CODEC_MASK))
376 ctx->idisp_codec = true;
377
378 /* links are always present in topology */
379 hdmi_num = 3;
380 }
381
382 dmi_check_system(sof_pcm512x_quirk_table);
383
384 dev_dbg(&pdev->dev, "sof_pcm512x_quirk = %lx\n", sof_pcm512x_quirk);
385
386 ssp_codec = sof_pcm512x_quirk & SOF_PCM512X_SSP_CODEC_MASK;
387
388 if (!(sof_pcm512x_quirk & SOF_PCM512X_ENABLE_DMIC))
389 dmic_be_num = 0;
390
391 /* compute number of dai links */
392 sof_audio_card_pcm512x.num_links = 1 + dmic_be_num + hdmi_num;
393
394 dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec,
395 dmic_be_num, hdmi_num,
396 ctx->idisp_codec);
397 if (!dai_links)
398 return -ENOMEM;
399
400 sof_audio_card_pcm512x.dai_link = dai_links;
401
402 INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
403
404 sof_audio_card_pcm512x.dev = &pdev->dev;
405
406 /* set platform name for each dailink */
407 ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_pcm512x,
408 mach->mach_params.platform);
409 if (ret)
410 return ret;
411
412 snd_soc_card_set_drvdata(&sof_audio_card_pcm512x, ctx);
413
414 return devm_snd_soc_register_card(&pdev->dev,
415 &sof_audio_card_pcm512x);
416 }
417
sof_pcm512x_remove(struct platform_device * pdev)418 static void sof_pcm512x_remove(struct platform_device *pdev)
419 {
420 struct snd_soc_card *card = platform_get_drvdata(pdev);
421 struct snd_soc_component *component;
422
423 for_each_card_components(card, component) {
424 if (!strcmp(component->name, pcm512x_component[0].name)) {
425 snd_soc_component_set_jack(component, NULL, NULL);
426 break;
427 }
428 }
429 }
430
431 static struct platform_driver sof_audio = {
432 .probe = sof_audio_probe,
433 .remove_new = sof_pcm512x_remove,
434 .driver = {
435 .name = "sof_pcm512x",
436 .pm = &snd_soc_pm_ops,
437 },
438 };
439 module_platform_driver(sof_audio)
440
441 MODULE_DESCRIPTION("ASoC Intel(R) SOF + PCM512x Machine driver");
442 MODULE_AUTHOR("Pierre-Louis Bossart");
443 MODULE_LICENSE("GPL v2");
444 MODULE_ALIAS("platform:sof_pcm512x");
445 MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON);
446