2 * Intel Skylake I2S Machine Driver with MAXIM98357A
5 * Copyright (C) 2015, Intel Corporation. All rights reserved.
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version
9 * 2 as published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
17 #include <linux/module.h>
18 #include <linux/platform_device.h>
19 #include <sound/core.h>
20 #include <sound/jack.h>
21 #include <sound/pcm.h>
22 #include <sound/pcm_params.h>
23 #include <sound/soc.h>
24 #include "../../codecs/nau8825.h"
25 #include "../../codecs/hdac_hdmi.h"
26 #include "../skylake/skl.h"
28 #define SKL_NUVOTON_CODEC_DAI "nau8825-hifi"
29 #define SKL_MAXIM_CODEC_DAI "HiFi"
30 #define DMIC_CH(p) p->list[p->count-1]
32 static struct snd_soc_jack skylake_headset;
33 static struct snd_soc_card skylake_audio_card;
34 static const struct snd_pcm_hw_constraint_list *dmic_constraints;
37 struct list_head head;
38 struct snd_soc_dai *codec_dai;
42 struct skl_nau8825_private {
43 struct list_head hdmi_pcm_list;
47 SKL_DPCM_AUDIO_PB = 0,
49 SKL_DPCM_AUDIO_REF_CP,
50 SKL_DPCM_AUDIO_DMIC_CP,
51 SKL_DPCM_AUDIO_HDMI1_PB,
52 SKL_DPCM_AUDIO_HDMI2_PB,
53 SKL_DPCM_AUDIO_HDMI3_PB,
56 static inline struct snd_soc_dai *skl_get_codec_dai(struct snd_soc_card *card)
58 struct snd_soc_pcm_runtime *rtd;
60 list_for_each_entry(rtd, &card->rtd_list, list) {
62 if (!strncmp(rtd->codec_dai->name, SKL_NUVOTON_CODEC_DAI,
63 strlen(SKL_NUVOTON_CODEC_DAI)))
64 return rtd->codec_dai;
70 static int platform_clock_control(struct snd_soc_dapm_widget *w,
71 struct snd_kcontrol *k, int event)
73 struct snd_soc_dapm_context *dapm = w->dapm;
74 struct snd_soc_card *card = dapm->card;
75 struct snd_soc_dai *codec_dai;
78 codec_dai = skl_get_codec_dai(card);
80 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
84 if (SND_SOC_DAPM_EVENT_ON(event)) {
85 ret = snd_soc_dai_set_sysclk(codec_dai,
86 NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
88 dev_err(card->dev, "set sysclk err = %d\n", ret);
92 ret = snd_soc_dai_set_sysclk(codec_dai,
93 NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN);
95 dev_err(card->dev, "set sysclk err = %d\n", ret);
103 static const struct snd_kcontrol_new skylake_controls[] = {
104 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
105 SOC_DAPM_PIN_SWITCH("Headset Mic"),
106 SOC_DAPM_PIN_SWITCH("Spk"),
109 static const struct snd_soc_dapm_widget skylake_widgets[] = {
110 SND_SOC_DAPM_HP("Headphone Jack", NULL),
111 SND_SOC_DAPM_MIC("Headset Mic", NULL),
112 SND_SOC_DAPM_SPK("Spk", NULL),
113 SND_SOC_DAPM_MIC("SoC DMIC", NULL),
114 SND_SOC_DAPM_SPK("DP", NULL),
115 SND_SOC_DAPM_SPK("HDMI", NULL),
116 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
117 platform_clock_control, SND_SOC_DAPM_PRE_PMU |
118 SND_SOC_DAPM_POST_PMD),
121 static const struct snd_soc_dapm_route skylake_map[] = {
122 /* HP jack connectors - unknown if we have jack detection */
123 { "Headphone Jack", NULL, "HPOL" },
124 { "Headphone Jack", NULL, "HPOR" },
127 { "Spk", NULL, "Speaker" },
130 { "MIC", NULL, "Headset Mic" },
131 { "DMic", NULL, "SoC DMIC" },
133 {"HDMI", NULL, "hif5 Output"},
134 {"DP", NULL, "hif6 Output"},
136 /* CODEC BE connections */
137 { "HiFi Playback", NULL, "ssp0 Tx" },
138 { "ssp0 Tx", NULL, "codec0_out" },
140 { "Playback", NULL, "ssp1 Tx" },
141 { "ssp1 Tx", NULL, "codec1_out" },
143 { "codec0_in", NULL, "ssp1 Rx" },
144 { "ssp1 Rx", NULL, "Capture" },
147 { "dmic01_hifi", NULL, "DMIC01 Rx" },
148 { "DMIC01 Rx", NULL, "DMIC AIF" },
150 { "hifi3", NULL, "iDisp3 Tx"},
151 { "iDisp3 Tx", NULL, "iDisp3_out"},
152 { "hifi2", NULL, "iDisp2 Tx"},
153 { "iDisp2 Tx", NULL, "iDisp2_out"},
154 { "hifi1", NULL, "iDisp1 Tx"},
155 { "iDisp1 Tx", NULL, "iDisp1_out"},
157 { "Headphone Jack", NULL, "Platform Clock" },
158 { "Headset Mic", NULL, "Platform Clock" },
161 static int skylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
162 struct snd_pcm_hw_params *params)
164 struct snd_interval *rate = hw_param_interval(params,
165 SNDRV_PCM_HW_PARAM_RATE);
166 struct snd_interval *channels = hw_param_interval(params,
167 SNDRV_PCM_HW_PARAM_CHANNELS);
168 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
170 /* The ADSP will covert the FE rate to 48k, stereo */
171 rate->min = rate->max = 48000;
172 channels->min = channels->max = 2;
174 /* set SSP0 to 24 bit */
176 snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE);
181 static int skylake_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd)
184 struct snd_soc_codec *codec = rtd->codec;
187 * Headset buttons map to the google Reference headset.
188 * These can be configured by userspace.
190 ret = snd_soc_card_jack_new(&skylake_audio_card, "Headset Jack",
191 SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
192 SND_JACK_BTN_2 | SND_JACK_BTN_3, &skylake_headset,
195 dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret);
199 nau8825_enable_jack_detect(codec, &skylake_headset);
201 snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");
206 static int skylake_hdmi1_init(struct snd_soc_pcm_runtime *rtd)
208 struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card);
209 struct snd_soc_dai *dai = rtd->codec_dai;
210 struct skl_hdmi_pcm *pcm;
212 pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
216 pcm->device = SKL_DPCM_AUDIO_HDMI1_PB;
217 pcm->codec_dai = dai;
219 list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
224 static int skylake_hdmi2_init(struct snd_soc_pcm_runtime *rtd)
226 struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card);
227 struct snd_soc_dai *dai = rtd->codec_dai;
228 struct skl_hdmi_pcm *pcm;
230 pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
234 pcm->device = SKL_DPCM_AUDIO_HDMI2_PB;
235 pcm->codec_dai = dai;
237 list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
242 static int skylake_hdmi3_init(struct snd_soc_pcm_runtime *rtd)
244 struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card);
245 struct snd_soc_dai *dai = rtd->codec_dai;
246 struct skl_hdmi_pcm *pcm;
248 pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
252 pcm->device = SKL_DPCM_AUDIO_HDMI3_PB;
253 pcm->codec_dai = dai;
255 list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
260 static int skylake_nau8825_fe_init(struct snd_soc_pcm_runtime *rtd)
262 struct snd_soc_dapm_context *dapm;
263 struct snd_soc_component *component = rtd->cpu_dai->component;
265 dapm = snd_soc_component_get_dapm(component);
266 snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
271 static unsigned int rates[] = {
275 static struct snd_pcm_hw_constraint_list constraints_rates = {
276 .count = ARRAY_SIZE(rates),
281 static unsigned int channels[] = {
285 static struct snd_pcm_hw_constraint_list constraints_channels = {
286 .count = ARRAY_SIZE(channels),
291 static int skl_fe_startup(struct snd_pcm_substream *substream)
293 struct snd_pcm_runtime *runtime = substream->runtime;
296 * On this platform for PCM device we support,
302 runtime->hw.channels_max = 2;
303 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
304 &constraints_channels);
306 runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
307 snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
309 snd_pcm_hw_constraint_list(runtime, 0,
310 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
315 static const struct snd_soc_ops skylake_nau8825_fe_ops = {
316 .startup = skl_fe_startup,
319 static int skylake_nau8825_hw_params(struct snd_pcm_substream *substream,
320 struct snd_pcm_hw_params *params)
322 struct snd_soc_pcm_runtime *rtd = substream->private_data;
323 struct snd_soc_dai *codec_dai = rtd->codec_dai;
326 ret = snd_soc_dai_set_sysclk(codec_dai,
327 NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
330 dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
335 static struct snd_soc_ops skylake_nau8825_ops = {
336 .hw_params = skylake_nau8825_hw_params,
339 static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
340 struct snd_pcm_hw_params *params)
342 struct snd_interval *channels = hw_param_interval(params,
343 SNDRV_PCM_HW_PARAM_CHANNELS);
345 if (params_channels(params) == 2 || DMIC_CH(dmic_constraints) == 2)
346 channels->min = channels->max = 2;
348 channels->min = channels->max = 4;
353 static unsigned int channels_dmic[] = {
357 static struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
358 .count = ARRAY_SIZE(channels_dmic),
359 .list = channels_dmic,
363 static const unsigned int dmic_2ch[] = {
367 static const struct snd_pcm_hw_constraint_list constraints_dmic_2ch = {
368 .count = ARRAY_SIZE(dmic_2ch),
373 static int skylake_dmic_startup(struct snd_pcm_substream *substream)
375 struct snd_pcm_runtime *runtime = substream->runtime;
377 runtime->hw.channels_max = DMIC_CH(dmic_constraints);
378 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
381 return snd_pcm_hw_constraint_list(substream->runtime, 0,
382 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
385 static struct snd_soc_ops skylake_dmic_ops = {
386 .startup = skylake_dmic_startup,
389 static unsigned int rates_16000[] = {
393 static struct snd_pcm_hw_constraint_list constraints_16000 = {
394 .count = ARRAY_SIZE(rates_16000),
398 static const unsigned int ch_mono[] = {
402 static const struct snd_pcm_hw_constraint_list constraints_refcap = {
403 .count = ARRAY_SIZE(ch_mono),
407 static int skylake_refcap_startup(struct snd_pcm_substream *substream)
409 substream->runtime->hw.channels_max = 1;
410 snd_pcm_hw_constraint_list(substream->runtime, 0,
411 SNDRV_PCM_HW_PARAM_CHANNELS,
412 &constraints_refcap);
414 return snd_pcm_hw_constraint_list(substream->runtime, 0,
415 SNDRV_PCM_HW_PARAM_RATE,
419 static struct snd_soc_ops skylaye_refcap_ops = {
420 .startup = skylake_refcap_startup,
423 /* skylake digital audio interface glue - connects codec <--> CPU */
424 static struct snd_soc_dai_link skylake_dais[] = {
425 /* Front End DAI links */
426 [SKL_DPCM_AUDIO_PB] = {
427 .name = "Skl Audio Port",
428 .stream_name = "Audio",
429 .cpu_dai_name = "System Pin",
430 .platform_name = "0000:00:1f.3",
432 .codec_name = "snd-soc-dummy",
433 .codec_dai_name = "snd-soc-dummy-dai",
435 .init = skylake_nau8825_fe_init,
437 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
439 .ops = &skylake_nau8825_fe_ops,
441 [SKL_DPCM_AUDIO_CP] = {
442 .name = "Skl Audio Capture Port",
443 .stream_name = "Audio Record",
444 .cpu_dai_name = "System Pin",
445 .platform_name = "0000:00:1f.3",
447 .codec_name = "snd-soc-dummy",
448 .codec_dai_name = "snd-soc-dummy-dai",
451 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
453 .ops = &skylake_nau8825_fe_ops,
455 [SKL_DPCM_AUDIO_REF_CP] = {
456 .name = "Skl Audio Reference cap",
457 .stream_name = "Wake on Voice",
458 .cpu_dai_name = "Reference Pin",
459 .codec_name = "snd-soc-dummy",
460 .codec_dai_name = "snd-soc-dummy-dai",
461 .platform_name = "0000:00:1f.3",
466 .ops = &skylaye_refcap_ops,
468 [SKL_DPCM_AUDIO_DMIC_CP] = {
469 .name = "Skl Audio DMIC cap",
470 .stream_name = "dmiccap",
471 .cpu_dai_name = "DMIC Pin",
472 .codec_name = "snd-soc-dummy",
473 .codec_dai_name = "snd-soc-dummy-dai",
474 .platform_name = "0000:00:1f.3",
479 .ops = &skylake_dmic_ops,
481 [SKL_DPCM_AUDIO_HDMI1_PB] = {
482 .name = "Skl HDMI Port1",
483 .stream_name = "Hdmi1",
484 .cpu_dai_name = "HDMI1 Pin",
485 .codec_name = "snd-soc-dummy",
486 .codec_dai_name = "snd-soc-dummy-dai",
487 .platform_name = "0000:00:1f.3",
491 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
495 [SKL_DPCM_AUDIO_HDMI2_PB] = {
496 .name = "Skl HDMI Port2",
497 .stream_name = "Hdmi2",
498 .cpu_dai_name = "HDMI2 Pin",
499 .codec_name = "snd-soc-dummy",
500 .codec_dai_name = "snd-soc-dummy-dai",
501 .platform_name = "0000:00:1f.3",
505 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
509 [SKL_DPCM_AUDIO_HDMI3_PB] = {
510 .name = "Skl HDMI Port3",
511 .stream_name = "Hdmi3",
512 .cpu_dai_name = "HDMI3 Pin",
513 .codec_name = "snd-soc-dummy",
514 .codec_dai_name = "snd-soc-dummy-dai",
515 .platform_name = "0000:00:1f.3",
517 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
524 /* Back End DAI links */
527 .name = "SSP0-Codec",
529 .cpu_dai_name = "SSP0 Pin",
530 .platform_name = "0000:00:1f.3",
532 .codec_name = "MX98357A:00",
533 .codec_dai_name = SKL_MAXIM_CODEC_DAI,
534 .dai_fmt = SND_SOC_DAIFMT_I2S |
535 SND_SOC_DAIFMT_NB_NF |
536 SND_SOC_DAIFMT_CBS_CFS,
537 .ignore_pmdown_time = 1,
538 .be_hw_params_fixup = skylake_ssp_fixup,
543 .name = "SSP1-Codec",
545 .cpu_dai_name = "SSP1 Pin",
546 .platform_name = "0000:00:1f.3",
548 .codec_name = "i2c-10508825:00",
549 .codec_dai_name = SKL_NUVOTON_CODEC_DAI,
550 .init = skylake_nau8825_codec_init,
551 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
552 SND_SOC_DAIFMT_CBS_CFS,
553 .ignore_pmdown_time = 1,
554 .be_hw_params_fixup = skylake_ssp_fixup,
555 .ops = &skylake_nau8825_ops,
562 .cpu_dai_name = "DMIC01 Pin",
563 .codec_name = "dmic-codec",
564 .codec_dai_name = "dmic-hifi",
565 .platform_name = "0000:00:1f.3",
566 .be_hw_params_fixup = skylake_dmic_fixup,
574 .cpu_dai_name = "iDisp1 Pin",
575 .codec_name = "ehdaudio0D2",
576 .codec_dai_name = "intel-hdmi-hifi1",
577 .platform_name = "0000:00:1f.3",
579 .init = skylake_hdmi1_init,
585 .cpu_dai_name = "iDisp2 Pin",
586 .codec_name = "ehdaudio0D2",
587 .codec_dai_name = "intel-hdmi-hifi2",
588 .platform_name = "0000:00:1f.3",
589 .init = skylake_hdmi2_init,
596 .cpu_dai_name = "iDisp3 Pin",
597 .codec_name = "ehdaudio0D2",
598 .codec_dai_name = "intel-hdmi-hifi3",
599 .platform_name = "0000:00:1f.3",
600 .init = skylake_hdmi3_init,
606 static int skylake_card_late_probe(struct snd_soc_card *card)
608 struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(card);
609 struct skl_hdmi_pcm *pcm;
612 list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
613 err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device);
621 /* skylake audio machine driver for SPT + NAU88L25 */
622 static struct snd_soc_card skylake_audio_card = {
623 .name = "sklnau8825max",
624 .owner = THIS_MODULE,
625 .dai_link = skylake_dais,
626 .num_links = ARRAY_SIZE(skylake_dais),
627 .controls = skylake_controls,
628 .num_controls = ARRAY_SIZE(skylake_controls),
629 .dapm_widgets = skylake_widgets,
630 .num_dapm_widgets = ARRAY_SIZE(skylake_widgets),
631 .dapm_routes = skylake_map,
632 .num_dapm_routes = ARRAY_SIZE(skylake_map),
633 .fully_routed = true,
634 .late_probe = skylake_card_late_probe,
637 static int skylake_audio_probe(struct platform_device *pdev)
639 struct skl_nau8825_private *ctx;
640 struct skl_machine_pdata *pdata;
642 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC);
646 INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
648 skylake_audio_card.dev = &pdev->dev;
649 snd_soc_card_set_drvdata(&skylake_audio_card, ctx);
651 pdata = dev_get_drvdata(&pdev->dev);
653 dmic_constraints = pdata->dmic_num == 2 ?
654 &constraints_dmic_2ch : &constraints_dmic_channels;
656 return devm_snd_soc_register_card(&pdev->dev, &skylake_audio_card);
659 static const struct platform_device_id skl_board_ids[] = {
660 { .name = "skl_n88l25_m98357a" },
661 { .name = "kbl_n88l25_m98357a" },
665 static struct platform_driver skylake_audio = {
666 .probe = skylake_audio_probe,
668 .name = "skl_n88l25_m98357a",
669 .pm = &snd_soc_pm_ops,
671 .id_table = skl_board_ids,
674 module_platform_driver(skylake_audio)
676 /* Module information */
677 MODULE_DESCRIPTION("Audio Machine driver-NAU88L25 & MAX98357A in I2S mode");
678 MODULE_AUTHOR("Rohit Ainapure <rohit.m.ainapure@intel.com");
679 MODULE_LICENSE("GPL v2");
680 MODULE_ALIAS("platform:skl_n88l25_m98357a");
681 MODULE_ALIAS("platform:kbl_n88l25_m98357a");