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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 */
35static unsigned long sof_pcm512x_quirk =
36 SOF_PCM512X_SSP_CODEC(5) |
37 SOF_PCM512X_ENABLE_SSP_CAPTURE |
38 SOF_PCM512X_ENABLE_DMIC;
39
40static bool is_legacy_cpu;
41
42struct sof_hdmi_pcm {
43 struct list_head head;
44 struct snd_soc_dai *codec_dai;
45 int device;
46};
47
48struct sof_card_private {
49 struct list_head hdmi_pcm_list;
50 bool idisp_codec;
51};
52
53static 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
59static 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
71static 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 = snd_soc_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
90static int sof_pcm512x_codec_init(struct snd_soc_pcm_runtime *rtd)
91{
92 struct snd_soc_component *codec = snd_soc_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
102static int aif1_startup(struct snd_pcm_substream *substream)
103{
104 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
105 struct snd_soc_component *codec = snd_soc_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
113static void aif1_shutdown(struct snd_pcm_substream *substream)
114{
115 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
116 struct snd_soc_component *codec = snd_soc_rtd_to_codec(rtd, 0)->component;
117
118 snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1,
119 0x08, 0x00);
120}
121
122static const struct snd_soc_ops sof_pcm512x_ops = {
123 .startup = aif1_startup,
124 .shutdown = aif1_shutdown,
125};
126
127static 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
134static 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
154static const struct snd_kcontrol_new sof_controls[] = {
155 SOC_DAPM_PIN_SWITCH("Ext Spk"),
156};
157
158static const struct snd_soc_dapm_widget sof_widgets[] = {
159 SND_SOC_DAPM_SPK("Ext Spk", NULL),
160};
161
162static const struct snd_soc_dapm_widget dmic_widgets[] = {
163 SND_SOC_DAPM_MIC("SoC DMIC", NULL),
164};
165
166static const struct snd_soc_dapm_route sof_map[] = {
167 /* Speaker */
168 {"Ext Spk", NULL, "OUTR"},
169 {"Ext Spk", NULL, "OUTL"},
170};
171
172static const struct snd_soc_dapm_route dmic_map[] = {
173 /* digital mics */
174 {"DMic", NULL, "SoC DMIC"},
175};
176
177static 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 */
200static 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
213SND_SOC_DAILINK_DEF(pcm512x_component,
214 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-104C5122:00", "pcm512x-hifi")));
215SND_SOC_DAILINK_DEF(dmic_component,
216 DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", "dmic-hifi")));
217
218static 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 /*
250 * capture only supported with specific versions of the Hifiberry DAC+
251 */
252 if (!(sof_pcm512x_quirk & SOF_PCM512X_ENABLE_SSP_CAPTURE))
253 links[id].playback_only = 1;
254 links[id].no_pcm = 1;
255 links[id].cpus = &cpus[id];
256 links[id].num_cpus = 1;
257 if (is_legacy_cpu) {
258 links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
259 "ssp%d-port",
260 ssp_codec);
261 if (!links[id].cpus->dai_name)
262 goto devm_err;
263 } else {
264 links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
265 "SSP%d Pin",
266 ssp_codec);
267 if (!links[id].cpus->dai_name)
268 goto devm_err;
269 }
270 id++;
271
272 /* dmic */
273 if (dmic_be_num > 0) {
274 /* at least we have dmic01 */
275 links[id].name = "dmic01";
276 links[id].cpus = &cpus[id];
277 links[id].cpus->dai_name = "DMIC01 Pin";
278 links[id].init = dmic_init;
279 if (dmic_be_num > 1) {
280 /* set up 2 BE links at most */
281 links[id + 1].name = "dmic16k";
282 links[id + 1].cpus = &cpus[id + 1];
283 links[id + 1].cpus->dai_name = "DMIC16k Pin";
284 dmic_be_num = 2;
285 }
286 }
287
288 for (i = 0; i < dmic_be_num; i++) {
289 links[id].id = id;
290 links[id].num_cpus = 1;
291 links[id].codecs = dmic_component;
292 links[id].num_codecs = ARRAY_SIZE(dmic_component);
293 links[id].platforms = platform_component;
294 links[id].num_platforms = ARRAY_SIZE(platform_component);
295 links[id].ignore_suspend = 1;
296 links[id].capture_only = 1;
297 links[id].no_pcm = 1;
298 id++;
299 }
300
301 /* HDMI */
302 if (hdmi_num > 0) {
303 idisp_components = devm_kcalloc(dev, hdmi_num,
304 sizeof(struct snd_soc_dai_link_component),
305 GFP_KERNEL);
306 if (!idisp_components)
307 goto devm_err;
308 }
309 for (i = 1; i <= hdmi_num; i++) {
310 links[id].name = devm_kasprintf(dev, GFP_KERNEL,
311 "iDisp%d", i);
312 if (!links[id].name)
313 goto devm_err;
314
315 links[id].id = id;
316 links[id].cpus = &cpus[id];
317 links[id].num_cpus = 1;
318 links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
319 "iDisp%d Pin", i);
320 if (!links[id].cpus->dai_name)
321 goto devm_err;
322
323 /*
324 * topology cannot be loaded if codec is missing, so
325 * use the dummy codec if needed
326 */
327 if (idisp_codec) {
328 idisp_components[i - 1].name = "ehdaudio0D2";
329 idisp_components[i - 1].dai_name =
330 devm_kasprintf(dev, GFP_KERNEL,
331 "intel-hdmi-hifi%d", i);
332 } else {
333 idisp_components[i - 1] = snd_soc_dummy_dlc;
334 }
335 if (!idisp_components[i - 1].dai_name)
336 goto devm_err;
337
338 links[id].codecs = &idisp_components[i - 1];
339 links[id].num_codecs = 1;
340 links[id].platforms = platform_component;
341 links[id].num_platforms = ARRAY_SIZE(platform_component);
342 links[id].init = sof_hdmi_init;
343 links[id].playback_only = 1;
344 links[id].no_pcm = 1;
345 id++;
346 }
347
348 return links;
349devm_err:
350 return NULL;
351}
352
353static int sof_audio_probe(struct platform_device *pdev)
354{
355 struct snd_soc_acpi_mach *mach = pdev->dev.platform_data;
356 struct snd_soc_dai_link *dai_links;
357 struct sof_card_private *ctx;
358 int dmic_be_num, hdmi_num;
359 int ret, ssp_codec;
360
361 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
362 if (!ctx)
363 return -ENOMEM;
364
365 hdmi_num = 0;
366 if (soc_intel_is_byt() || soc_intel_is_cht()) {
367 is_legacy_cpu = true;
368 dmic_be_num = 0;
369 /* default quirk for legacy cpu */
370 sof_pcm512x_quirk = SOF_PCM512X_SSP_CODEC(2);
371 } else {
372 dmic_be_num = 2;
373 if (mach->mach_params.codec_mask & IDISP_CODEC_MASK)
374 ctx->idisp_codec = true;
375
376 /* links are always present in topology */
377 hdmi_num = 3;
378 }
379
380 dmi_check_system(sof_pcm512x_quirk_table);
381
382 dev_dbg(&pdev->dev, "sof_pcm512x_quirk = %lx\n", sof_pcm512x_quirk);
383
384 ssp_codec = sof_pcm512x_quirk & SOF_PCM512X_SSP_CODEC_MASK;
385
386 if (!(sof_pcm512x_quirk & SOF_PCM512X_ENABLE_DMIC))
387 dmic_be_num = 0;
388
389 /* compute number of dai links */
390 sof_audio_card_pcm512x.num_links = 1 + dmic_be_num + hdmi_num;
391
392 dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec,
393 dmic_be_num, hdmi_num,
394 ctx->idisp_codec);
395 if (!dai_links)
396 return -ENOMEM;
397
398 sof_audio_card_pcm512x.dai_link = dai_links;
399
400 INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
401
402 sof_audio_card_pcm512x.dev = &pdev->dev;
403
404 /* set platform name for each dailink */
405 ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_pcm512x,
406 mach->mach_params.platform);
407 if (ret)
408 return ret;
409
410 snd_soc_card_set_drvdata(&sof_audio_card_pcm512x, ctx);
411
412 return devm_snd_soc_register_card(&pdev->dev,
413 &sof_audio_card_pcm512x);
414}
415
416static void sof_pcm512x_remove(struct platform_device *pdev)
417{
418 struct snd_soc_card *card = platform_get_drvdata(pdev);
419 struct snd_soc_component *component;
420
421 for_each_card_components(card, component) {
422 if (!strcmp(component->name, pcm512x_component[0].name)) {
423 snd_soc_component_set_jack(component, NULL, NULL);
424 break;
425 }
426 }
427}
428
429static struct platform_driver sof_audio = {
430 .probe = sof_audio_probe,
431 .remove = sof_pcm512x_remove,
432 .driver = {
433 .name = "sof_pcm512x",
434 .pm = &snd_soc_pm_ops,
435 },
436};
437module_platform_driver(sof_audio)
438
439MODULE_DESCRIPTION("ASoC Intel(R) SOF + PCM512x Machine driver");
440MODULE_AUTHOR("Pierre-Louis Bossart");
441MODULE_LICENSE("GPL v2");
442MODULE_ALIAS("platform:sof_pcm512x");
443MODULE_IMPORT_NS("SND_SOC_INTEL_HDA_DSP_COMMON");