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
;
35 static struct snd_soc_jack skylake_hdmi
[3];
38 struct list_head head
;
39 struct snd_soc_dai
*codec_dai
;
43 struct skl_nau8825_private
{
44 struct list_head hdmi_pcm_list
;
48 SKL_DPCM_AUDIO_PB
= 0,
50 SKL_DPCM_AUDIO_REF_CP
,
51 SKL_DPCM_AUDIO_DMIC_CP
,
52 SKL_DPCM_AUDIO_HDMI1_PB
,
53 SKL_DPCM_AUDIO_HDMI2_PB
,
54 SKL_DPCM_AUDIO_HDMI3_PB
,
57 static inline struct snd_soc_dai
*skl_get_codec_dai(struct snd_soc_card
*card
)
59 struct snd_soc_pcm_runtime
*rtd
;
61 list_for_each_entry(rtd
, &card
->rtd_list
, list
) {
63 if (!strncmp(rtd
->codec_dai
->name
, SKL_NUVOTON_CODEC_DAI
,
64 strlen(SKL_NUVOTON_CODEC_DAI
)))
65 return rtd
->codec_dai
;
71 static int platform_clock_control(struct snd_soc_dapm_widget
*w
,
72 struct snd_kcontrol
*k
, int event
)
74 struct snd_soc_dapm_context
*dapm
= w
->dapm
;
75 struct snd_soc_card
*card
= dapm
->card
;
76 struct snd_soc_dai
*codec_dai
;
79 codec_dai
= skl_get_codec_dai(card
);
81 dev_err(card
->dev
, "Codec dai not found; Unable to set platform clock\n");
85 if (SND_SOC_DAPM_EVENT_ON(event
)) {
86 ret
= snd_soc_dai_set_sysclk(codec_dai
,
87 NAU8825_CLK_MCLK
, 24000000, SND_SOC_CLOCK_IN
);
89 dev_err(card
->dev
, "set sysclk err = %d\n", ret
);
93 ret
= snd_soc_dai_set_sysclk(codec_dai
,
94 NAU8825_CLK_INTERNAL
, 0, SND_SOC_CLOCK_IN
);
96 dev_err(card
->dev
, "set sysclk err = %d\n", ret
);
104 static const struct snd_kcontrol_new skylake_controls
[] = {
105 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
106 SOC_DAPM_PIN_SWITCH("Headset Mic"),
107 SOC_DAPM_PIN_SWITCH("Spk"),
110 static const struct snd_soc_dapm_widget skylake_widgets
[] = {
111 SND_SOC_DAPM_HP("Headphone Jack", NULL
),
112 SND_SOC_DAPM_MIC("Headset Mic", NULL
),
113 SND_SOC_DAPM_SPK("Spk", NULL
),
114 SND_SOC_DAPM_MIC("SoC DMIC", NULL
),
115 SND_SOC_DAPM_SPK("DP1", NULL
),
116 SND_SOC_DAPM_SPK("DP2", NULL
),
117 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM
, 0, 0,
118 platform_clock_control
, SND_SOC_DAPM_PRE_PMU
|
119 SND_SOC_DAPM_POST_PMD
),
122 static const struct snd_soc_dapm_route skylake_map
[] = {
123 /* HP jack connectors - unknown if we have jack detection */
124 { "Headphone Jack", NULL
, "HPOL" },
125 { "Headphone Jack", NULL
, "HPOR" },
128 { "Spk", NULL
, "Speaker" },
131 { "MIC", NULL
, "Headset Mic" },
132 { "DMic", NULL
, "SoC DMIC" },
134 /* CODEC BE connections */
135 { "HiFi Playback", NULL
, "ssp0 Tx" },
136 { "ssp0 Tx", NULL
, "codec0_out" },
138 { "Playback", NULL
, "ssp1 Tx" },
139 { "ssp1 Tx", NULL
, "codec1_out" },
141 { "codec0_in", NULL
, "ssp1 Rx" },
142 { "ssp1 Rx", NULL
, "Capture" },
145 { "dmic01_hifi", NULL
, "DMIC01 Rx" },
146 { "DMIC01 Rx", NULL
, "DMIC AIF" },
148 { "hifi3", NULL
, "iDisp3 Tx"},
149 { "iDisp3 Tx", NULL
, "iDisp3_out"},
150 { "hifi2", NULL
, "iDisp2 Tx"},
151 { "iDisp2 Tx", NULL
, "iDisp2_out"},
152 { "hifi1", NULL
, "iDisp1 Tx"},
153 { "iDisp1 Tx", NULL
, "iDisp1_out"},
155 { "Headphone Jack", NULL
, "Platform Clock" },
156 { "Headset Mic", NULL
, "Platform Clock" },
159 static int skylake_ssp_fixup(struct snd_soc_pcm_runtime
*rtd
,
160 struct snd_pcm_hw_params
*params
)
162 struct snd_interval
*rate
= hw_param_interval(params
,
163 SNDRV_PCM_HW_PARAM_RATE
);
164 struct snd_interval
*channels
= hw_param_interval(params
,
165 SNDRV_PCM_HW_PARAM_CHANNELS
);
166 struct snd_mask
*fmt
= hw_param_mask(params
, SNDRV_PCM_HW_PARAM_FORMAT
);
168 /* The ADSP will covert the FE rate to 48k, stereo */
169 rate
->min
= rate
->max
= 48000;
170 channels
->min
= channels
->max
= 2;
172 /* set SSP0 to 24 bit */
174 snd_mask_set(fmt
, SNDRV_PCM_FORMAT_S24_LE
);
179 static int skylake_nau8825_codec_init(struct snd_soc_pcm_runtime
*rtd
)
182 struct snd_soc_codec
*codec
= rtd
->codec
;
185 * Headset buttons map to the google Reference headset.
186 * These can be configured by userspace.
188 ret
= snd_soc_card_jack_new(&skylake_audio_card
, "Headset Jack",
189 SND_JACK_HEADSET
| SND_JACK_BTN_0
| SND_JACK_BTN_1
|
190 SND_JACK_BTN_2
| SND_JACK_BTN_3
, &skylake_headset
,
193 dev_err(rtd
->dev
, "Headset Jack creation failed %d\n", ret
);
197 nau8825_enable_jack_detect(codec
, &skylake_headset
);
199 snd_soc_dapm_ignore_suspend(&rtd
->card
->dapm
, "SoC DMIC");
204 static int skylake_hdmi1_init(struct snd_soc_pcm_runtime
*rtd
)
206 struct skl_nau8825_private
*ctx
= snd_soc_card_get_drvdata(rtd
->card
);
207 struct snd_soc_dai
*dai
= rtd
->codec_dai
;
208 struct skl_hdmi_pcm
*pcm
;
210 pcm
= devm_kzalloc(rtd
->card
->dev
, sizeof(*pcm
), GFP_KERNEL
);
214 pcm
->device
= SKL_DPCM_AUDIO_HDMI1_PB
;
215 pcm
->codec_dai
= dai
;
217 list_add_tail(&pcm
->head
, &ctx
->hdmi_pcm_list
);
222 static int skylake_hdmi2_init(struct snd_soc_pcm_runtime
*rtd
)
224 struct skl_nau8825_private
*ctx
= snd_soc_card_get_drvdata(rtd
->card
);
225 struct snd_soc_dai
*dai
= rtd
->codec_dai
;
226 struct skl_hdmi_pcm
*pcm
;
228 pcm
= devm_kzalloc(rtd
->card
->dev
, sizeof(*pcm
), GFP_KERNEL
);
232 pcm
->device
= SKL_DPCM_AUDIO_HDMI2_PB
;
233 pcm
->codec_dai
= dai
;
235 list_add_tail(&pcm
->head
, &ctx
->hdmi_pcm_list
);
240 static int skylake_hdmi3_init(struct snd_soc_pcm_runtime
*rtd
)
242 struct skl_nau8825_private
*ctx
= snd_soc_card_get_drvdata(rtd
->card
);
243 struct snd_soc_dai
*dai
= rtd
->codec_dai
;
244 struct skl_hdmi_pcm
*pcm
;
246 pcm
= devm_kzalloc(rtd
->card
->dev
, sizeof(*pcm
), GFP_KERNEL
);
250 pcm
->device
= SKL_DPCM_AUDIO_HDMI3_PB
;
251 pcm
->codec_dai
= dai
;
253 list_add_tail(&pcm
->head
, &ctx
->hdmi_pcm_list
);
258 static int skylake_nau8825_fe_init(struct snd_soc_pcm_runtime
*rtd
)
260 struct snd_soc_dapm_context
*dapm
;
261 struct snd_soc_component
*component
= rtd
->cpu_dai
->component
;
263 dapm
= snd_soc_component_get_dapm(component
);
264 snd_soc_dapm_ignore_suspend(dapm
, "Reference Capture");
269 static const unsigned int rates
[] = {
273 static const struct snd_pcm_hw_constraint_list constraints_rates
= {
274 .count
= ARRAY_SIZE(rates
),
279 static const unsigned int channels
[] = {
283 static const struct snd_pcm_hw_constraint_list constraints_channels
= {
284 .count
= ARRAY_SIZE(channels
),
289 static int skl_fe_startup(struct snd_pcm_substream
*substream
)
291 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
294 * On this platform for PCM device we support,
300 runtime
->hw
.channels_max
= 2;
301 snd_pcm_hw_constraint_list(runtime
, 0, SNDRV_PCM_HW_PARAM_CHANNELS
,
302 &constraints_channels
);
304 runtime
->hw
.formats
= SNDRV_PCM_FMTBIT_S16_LE
;
305 snd_pcm_hw_constraint_msbits(runtime
, 0, 16, 16);
307 snd_pcm_hw_constraint_list(runtime
, 0,
308 SNDRV_PCM_HW_PARAM_RATE
, &constraints_rates
);
313 static const struct snd_soc_ops skylake_nau8825_fe_ops
= {
314 .startup
= skl_fe_startup
,
317 static int skylake_nau8825_hw_params(struct snd_pcm_substream
*substream
,
318 struct snd_pcm_hw_params
*params
)
320 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
321 struct snd_soc_dai
*codec_dai
= rtd
->codec_dai
;
324 ret
= snd_soc_dai_set_sysclk(codec_dai
,
325 NAU8825_CLK_MCLK
, 24000000, SND_SOC_CLOCK_IN
);
328 dev_err(rtd
->dev
, "snd_soc_dai_set_sysclk err = %d\n", ret
);
333 static const struct snd_soc_ops skylake_nau8825_ops
= {
334 .hw_params
= skylake_nau8825_hw_params
,
337 static int skylake_dmic_fixup(struct snd_soc_pcm_runtime
*rtd
,
338 struct snd_pcm_hw_params
*params
)
340 struct snd_interval
*channels
= hw_param_interval(params
,
341 SNDRV_PCM_HW_PARAM_CHANNELS
);
343 if (params_channels(params
) == 2 || DMIC_CH(dmic_constraints
) == 2)
344 channels
->min
= channels
->max
= 2;
346 channels
->min
= channels
->max
= 4;
351 static const unsigned int channels_dmic
[] = {
355 static const struct snd_pcm_hw_constraint_list constraints_dmic_channels
= {
356 .count
= ARRAY_SIZE(channels_dmic
),
357 .list
= channels_dmic
,
361 static const unsigned int dmic_2ch
[] = {
365 static const struct snd_pcm_hw_constraint_list constraints_dmic_2ch
= {
366 .count
= ARRAY_SIZE(dmic_2ch
),
371 static int skylake_dmic_startup(struct snd_pcm_substream
*substream
)
373 struct snd_pcm_runtime
*runtime
= substream
->runtime
;
375 runtime
->hw
.channels_max
= DMIC_CH(dmic_constraints
);
376 snd_pcm_hw_constraint_list(runtime
, 0, SNDRV_PCM_HW_PARAM_CHANNELS
,
379 return snd_pcm_hw_constraint_list(substream
->runtime
, 0,
380 SNDRV_PCM_HW_PARAM_RATE
, &constraints_rates
);
383 static const struct snd_soc_ops skylake_dmic_ops
= {
384 .startup
= skylake_dmic_startup
,
387 static const unsigned int rates_16000
[] = {
391 static const struct snd_pcm_hw_constraint_list constraints_16000
= {
392 .count
= ARRAY_SIZE(rates_16000
),
396 static const unsigned int ch_mono
[] = {
400 static const struct snd_pcm_hw_constraint_list constraints_refcap
= {
401 .count
= ARRAY_SIZE(ch_mono
),
405 static int skylake_refcap_startup(struct snd_pcm_substream
*substream
)
407 substream
->runtime
->hw
.channels_max
= 1;
408 snd_pcm_hw_constraint_list(substream
->runtime
, 0,
409 SNDRV_PCM_HW_PARAM_CHANNELS
,
410 &constraints_refcap
);
412 return snd_pcm_hw_constraint_list(substream
->runtime
, 0,
413 SNDRV_PCM_HW_PARAM_RATE
,
417 static const struct snd_soc_ops skylaye_refcap_ops
= {
418 .startup
= skylake_refcap_startup
,
421 /* skylake digital audio interface glue - connects codec <--> CPU */
422 static struct snd_soc_dai_link skylake_dais
[] = {
423 /* Front End DAI links */
424 [SKL_DPCM_AUDIO_PB
] = {
425 .name
= "Skl Audio Port",
426 .stream_name
= "Audio",
427 .cpu_dai_name
= "System Pin",
428 .platform_name
= "0000:00:1f.3",
430 .codec_name
= "snd-soc-dummy",
431 .codec_dai_name
= "snd-soc-dummy-dai",
433 .init
= skylake_nau8825_fe_init
,
435 SND_SOC_DPCM_TRIGGER_POST
, SND_SOC_DPCM_TRIGGER_POST
},
437 .ops
= &skylake_nau8825_fe_ops
,
439 [SKL_DPCM_AUDIO_CP
] = {
440 .name
= "Skl Audio Capture Port",
441 .stream_name
= "Audio Record",
442 .cpu_dai_name
= "System Pin",
443 .platform_name
= "0000:00:1f.3",
445 .codec_name
= "snd-soc-dummy",
446 .codec_dai_name
= "snd-soc-dummy-dai",
449 SND_SOC_DPCM_TRIGGER_POST
, SND_SOC_DPCM_TRIGGER_POST
},
451 .ops
= &skylake_nau8825_fe_ops
,
453 [SKL_DPCM_AUDIO_REF_CP
] = {
454 .name
= "Skl Audio Reference cap",
455 .stream_name
= "Wake on Voice",
456 .cpu_dai_name
= "Reference Pin",
457 .codec_name
= "snd-soc-dummy",
458 .codec_dai_name
= "snd-soc-dummy-dai",
459 .platform_name
= "0000:00:1f.3",
464 .ops
= &skylaye_refcap_ops
,
466 [SKL_DPCM_AUDIO_DMIC_CP
] = {
467 .name
= "Skl Audio DMIC cap",
468 .stream_name
= "dmiccap",
469 .cpu_dai_name
= "DMIC Pin",
470 .codec_name
= "snd-soc-dummy",
471 .codec_dai_name
= "snd-soc-dummy-dai",
472 .platform_name
= "0000:00:1f.3",
477 .ops
= &skylake_dmic_ops
,
479 [SKL_DPCM_AUDIO_HDMI1_PB
] = {
480 .name
= "Skl HDMI Port1",
481 .stream_name
= "Hdmi1",
482 .cpu_dai_name
= "HDMI1 Pin",
483 .codec_name
= "snd-soc-dummy",
484 .codec_dai_name
= "snd-soc-dummy-dai",
485 .platform_name
= "0000:00:1f.3",
489 SND_SOC_DPCM_TRIGGER_POST
, SND_SOC_DPCM_TRIGGER_POST
},
493 [SKL_DPCM_AUDIO_HDMI2_PB
] = {
494 .name
= "Skl HDMI Port2",
495 .stream_name
= "Hdmi2",
496 .cpu_dai_name
= "HDMI2 Pin",
497 .codec_name
= "snd-soc-dummy",
498 .codec_dai_name
= "snd-soc-dummy-dai",
499 .platform_name
= "0000:00:1f.3",
503 SND_SOC_DPCM_TRIGGER_POST
, SND_SOC_DPCM_TRIGGER_POST
},
507 [SKL_DPCM_AUDIO_HDMI3_PB
] = {
508 .name
= "Skl HDMI Port3",
509 .stream_name
= "Hdmi3",
510 .cpu_dai_name
= "HDMI3 Pin",
511 .codec_name
= "snd-soc-dummy",
512 .codec_dai_name
= "snd-soc-dummy-dai",
513 .platform_name
= "0000:00:1f.3",
515 SND_SOC_DPCM_TRIGGER_POST
, SND_SOC_DPCM_TRIGGER_POST
},
522 /* Back End DAI links */
525 .name
= "SSP0-Codec",
527 .cpu_dai_name
= "SSP0 Pin",
528 .platform_name
= "0000:00:1f.3",
530 .codec_name
= "MX98357A:00",
531 .codec_dai_name
= SKL_MAXIM_CODEC_DAI
,
532 .dai_fmt
= SND_SOC_DAIFMT_I2S
|
533 SND_SOC_DAIFMT_NB_NF
|
534 SND_SOC_DAIFMT_CBS_CFS
,
535 .ignore_pmdown_time
= 1,
536 .be_hw_params_fixup
= skylake_ssp_fixup
,
541 .name
= "SSP1-Codec",
543 .cpu_dai_name
= "SSP1 Pin",
544 .platform_name
= "0000:00:1f.3",
546 .codec_name
= "i2c-10508825:00",
547 .codec_dai_name
= SKL_NUVOTON_CODEC_DAI
,
548 .init
= skylake_nau8825_codec_init
,
549 .dai_fmt
= SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_NB_NF
|
550 SND_SOC_DAIFMT_CBS_CFS
,
551 .ignore_pmdown_time
= 1,
552 .be_hw_params_fixup
= skylake_ssp_fixup
,
553 .ops
= &skylake_nau8825_ops
,
560 .cpu_dai_name
= "DMIC01 Pin",
561 .codec_name
= "dmic-codec",
562 .codec_dai_name
= "dmic-hifi",
563 .platform_name
= "0000:00:1f.3",
564 .be_hw_params_fixup
= skylake_dmic_fixup
,
572 .cpu_dai_name
= "iDisp1 Pin",
573 .codec_name
= "ehdaudio0D2",
574 .codec_dai_name
= "intel-hdmi-hifi1",
575 .platform_name
= "0000:00:1f.3",
577 .init
= skylake_hdmi1_init
,
583 .cpu_dai_name
= "iDisp2 Pin",
584 .codec_name
= "ehdaudio0D2",
585 .codec_dai_name
= "intel-hdmi-hifi2",
586 .platform_name
= "0000:00:1f.3",
587 .init
= skylake_hdmi2_init
,
594 .cpu_dai_name
= "iDisp3 Pin",
595 .codec_name
= "ehdaudio0D2",
596 .codec_dai_name
= "intel-hdmi-hifi3",
597 .platform_name
= "0000:00:1f.3",
598 .init
= skylake_hdmi3_init
,
605 static int skylake_card_late_probe(struct snd_soc_card
*card
)
607 struct skl_nau8825_private
*ctx
= snd_soc_card_get_drvdata(card
);
608 struct skl_hdmi_pcm
*pcm
;
609 struct snd_soc_codec
*codec
= NULL
;
611 char jack_name
[NAME_SIZE
];
613 list_for_each_entry(pcm
, &ctx
->hdmi_pcm_list
, head
) {
614 codec
= pcm
->codec_dai
->codec
;
615 snprintf(jack_name
, sizeof(jack_name
),
616 "HDMI/DP, pcm=%d Jack", pcm
->device
);
617 err
= snd_soc_card_jack_new(card
, jack_name
,
625 err
= hdac_hdmi_jack_init(pcm
->codec_dai
, pcm
->device
,
636 return hdac_hdmi_jack_port_init(codec
, &card
->dapm
);
639 /* skylake audio machine driver for SPT + NAU88L25 */
640 static struct snd_soc_card skylake_audio_card
= {
641 .name
= "sklnau8825max",
642 .owner
= THIS_MODULE
,
643 .dai_link
= skylake_dais
,
644 .num_links
= ARRAY_SIZE(skylake_dais
),
645 .controls
= skylake_controls
,
646 .num_controls
= ARRAY_SIZE(skylake_controls
),
647 .dapm_widgets
= skylake_widgets
,
648 .num_dapm_widgets
= ARRAY_SIZE(skylake_widgets
),
649 .dapm_routes
= skylake_map
,
650 .num_dapm_routes
= ARRAY_SIZE(skylake_map
),
651 .fully_routed
= true,
652 .late_probe
= skylake_card_late_probe
,
655 static int skylake_audio_probe(struct platform_device
*pdev
)
657 struct skl_nau8825_private
*ctx
;
658 struct skl_machine_pdata
*pdata
;
660 ctx
= devm_kzalloc(&pdev
->dev
, sizeof(*ctx
), GFP_ATOMIC
);
664 INIT_LIST_HEAD(&ctx
->hdmi_pcm_list
);
666 skylake_audio_card
.dev
= &pdev
->dev
;
667 snd_soc_card_set_drvdata(&skylake_audio_card
, ctx
);
669 pdata
= dev_get_drvdata(&pdev
->dev
);
671 dmic_constraints
= pdata
->dmic_num
== 2 ?
672 &constraints_dmic_2ch
: &constraints_dmic_channels
;
674 return devm_snd_soc_register_card(&pdev
->dev
, &skylake_audio_card
);
677 static const struct platform_device_id skl_board_ids
[] = {
678 { .name
= "skl_n88l25_m98357a" },
679 { .name
= "kbl_n88l25_m98357a" },
683 static struct platform_driver skylake_audio
= {
684 .probe
= skylake_audio_probe
,
686 .name
= "skl_n88l25_m98357a",
687 .pm
= &snd_soc_pm_ops
,
689 .id_table
= skl_board_ids
,
692 module_platform_driver(skylake_audio
)
694 /* Module information */
695 MODULE_DESCRIPTION("Audio Machine driver-NAU88L25 & MAX98357A in I2S mode");
696 MODULE_AUTHOR("Rohit Ainapure <rohit.m.ainapure@intel.com");
697 MODULE_LICENSE("GPL v2");
698 MODULE_ALIAS("platform:skl_n88l25_m98357a");
699 MODULE_ALIAS("platform:kbl_n88l25_m98357a");