1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * Intel Haswell Lynxpoint SST Audio
  4 *
  5 * Copyright (C) 2013, Intel Corporation. All rights reserved.
  6 */
  7
  8#include <linux/module.h>
  9#include <linux/platform_device.h>
 10#include <sound/core.h>
 11#include <sound/pcm.h>
 12#include <sound/soc.h>
 13#include <sound/soc-acpi.h>
 14#include <sound/pcm_params.h>
 15
 16#include "../../codecs/rt5640.h"
 17
 18/* Haswell ULT platforms have a Headphone and Mic jack */
 19static const struct snd_soc_dapm_widget haswell_widgets[] = {
 20	SND_SOC_DAPM_HP("Headphones", NULL),
 21	SND_SOC_DAPM_MIC("Mic", NULL),
 22};
 23
 24static const struct snd_soc_dapm_route haswell_rt5640_map[] = {
 25
 26	{"Headphones", NULL, "HPOR"},
 27	{"Headphones", NULL, "HPOL"},
 28	{"IN2P", NULL, "Mic"},
 29
 30	/* CODEC BE connections */
 31	{"SSP0 CODEC IN", NULL, "AIF1 Capture"},
 32	{"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
 33};
 34
 35static int haswell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
 36			struct snd_pcm_hw_params *params)
 37{
 38	struct snd_interval *rate = hw_param_interval(params,
 39			SNDRV_PCM_HW_PARAM_RATE);
 40	struct snd_interval *channels = hw_param_interval(params,
 41						SNDRV_PCM_HW_PARAM_CHANNELS);
 42
 43	/* The ADSP will covert the FE rate to 48k, stereo */
 44	rate->min = rate->max = 48000;
 45	channels->min = channels->max = 2;
 46
 47	/* set SSP0 to 16 bit */
 48	params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 49	return 0;
 50}
 51
 52static int haswell_rt5640_hw_params(struct snd_pcm_substream *substream,
 53	struct snd_pcm_hw_params *params)
 54{
 55	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 56	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 57	int ret;
 58
 59	ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_MCLK, 12288000,
 60		SND_SOC_CLOCK_IN);
 61
 62	if (ret < 0) {
 63		dev_err(rtd->dev, "can't set codec sysclk configuration\n");
 64		return ret;
 65	}
 66
 67	/* set correct codec filter for DAI format and clock config */
 68	snd_soc_component_update_bits(codec_dai->component, 0x83, 0xffff, 0x8000);
 69
 70	return ret;
 71}
 72
 73static const struct snd_soc_ops haswell_rt5640_ops = {
 74	.hw_params = haswell_rt5640_hw_params,
 75};
 76
 77SND_SOC_DAILINK_DEF(dummy,
 78	DAILINK_COMP_ARRAY(COMP_DUMMY()));
 79
 80SND_SOC_DAILINK_DEF(system,
 81	DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
 82
 83SND_SOC_DAILINK_DEF(offload0,
 84	DAILINK_COMP_ARRAY(COMP_CPU("Offload0 Pin")));
 85
 86SND_SOC_DAILINK_DEF(offload1,
 87	DAILINK_COMP_ARRAY(COMP_CPU("Offload1 Pin")));
 88
 89SND_SOC_DAILINK_DEF(loopback,
 90	DAILINK_COMP_ARRAY(COMP_CPU("Loopback Pin")));
 91
 92SND_SOC_DAILINK_DEF(codec,
 93	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-INT33CA:00", "rt5640-aif1")));
 94
 95SND_SOC_DAILINK_DEF(platform,
 96	DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio")));
 97
 98SND_SOC_DAILINK_DEF(ssp0_port,
 99	    DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port")));
100
101static struct snd_soc_dai_link haswell_rt5640_dais[] = {
102	/* Front End DAI links */
103	{
104		.name = "System",
105		.stream_name = "System Playback/Capture",
106		.nonatomic = 1,
107		.dynamic = 1,
108		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
109		.dpcm_playback = 1,
110		.dpcm_capture = 1,
111		SND_SOC_DAILINK_REG(system, dummy, platform),
112	},
113	{
114		.name = "Offload0",
115		.stream_name = "Offload0 Playback",
116		.nonatomic = 1,
117		.dynamic = 1,
118		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
119		.dpcm_playback = 1,
120		SND_SOC_DAILINK_REG(offload0, dummy, platform),
121	},
122	{
123		.name = "Offload1",
124		.stream_name = "Offload1 Playback",
125		.nonatomic = 1,
126		.dynamic = 1,
127		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
128		.dpcm_playback = 1,
129		SND_SOC_DAILINK_REG(offload1, dummy, platform),
130	},
131	{
132		.name = "Loopback",
133		.stream_name = "Loopback",
134		.nonatomic = 1,
135		.dynamic = 1,
136		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
137		.dpcm_capture = 1,
138		SND_SOC_DAILINK_REG(loopback, dummy, platform),
139	},
140
141	/* Back End DAI links */
142	{
143		/* SSP0 - Codec */
144		.name = "Codec",
145		.id = 0,
146		.no_pcm = 1,
147		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
148			SND_SOC_DAIFMT_CBS_CFS,
149		.ignore_pmdown_time = 1,
150		.be_hw_params_fixup = haswell_ssp0_fixup,
151		.ops = &haswell_rt5640_ops,
152		.dpcm_playback = 1,
153		.dpcm_capture = 1,
154		SND_SOC_DAILINK_REG(ssp0_port, codec, platform),
155	},
156};
157
158/* audio machine driver for Haswell Lynxpoint DSP + RT5640 */
159static struct snd_soc_card haswell_rt5640 = {
160	.name = "haswell-rt5640",
161	.owner = THIS_MODULE,
162	.dai_link = haswell_rt5640_dais,
163	.num_links = ARRAY_SIZE(haswell_rt5640_dais),
164	.dapm_widgets = haswell_widgets,
165	.num_dapm_widgets = ARRAY_SIZE(haswell_widgets),
166	.dapm_routes = haswell_rt5640_map,
167	.num_dapm_routes = ARRAY_SIZE(haswell_rt5640_map),
168	.fully_routed = true,
169};
170
171static int haswell_audio_probe(struct platform_device *pdev)
172{
173	struct snd_soc_acpi_mach *mach;
174	int ret;
175
176	haswell_rt5640.dev = &pdev->dev;
177
178	/* override plaform name, if required */
179	mach = pdev->dev.platform_data;
180	ret = snd_soc_fixup_dai_links_platform_name(&haswell_rt5640,
181						    mach->mach_params.platform);
182	if (ret)
183		return ret;
184
185	return devm_snd_soc_register_card(&pdev->dev, &haswell_rt5640);
186}
187
188static struct platform_driver haswell_audio = {
189	.probe = haswell_audio_probe,
190	.driver = {
191		.name = "haswell-audio",
192		.pm = &snd_soc_pm_ops,
193	},
194};
195
196module_platform_driver(haswell_audio)
197
198/* Module information */
199MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
200MODULE_DESCRIPTION("Intel SST Audio for Haswell Lynxpoint");
201MODULE_LICENSE("GPL v2");
202MODULE_ALIAS("platform:haswell-audio");