1/*
  2 * Intel Haswell Lynxpoint SST Audio
  3 *
  4 * Copyright (C) 2013, Intel Corporation. All rights reserved.
  5 *
  6 * This program is free software; you can redistribute it and/or
  7 * modify it under the terms of the GNU General Public License version
  8 * 2 as published by the Free Software Foundation.
  9 *
 10 * This program is distributed in the hope that it will be useful,
 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 13 * GNU General Public License for more details.
 14 *
 15 */
 16
 17#include <linux/module.h>
 18#include <linux/platform_device.h>
 19#include <sound/core.h>
 20#include <sound/pcm.h>
 21#include <sound/soc.h>
 22#include <sound/pcm_params.h>
 23
 24#include "../common/sst-dsp.h"
 25#include "../haswell/sst-haswell-ipc.h"
 26
 27#include "../../codecs/rt5640.h"
 28
 29/* Haswell ULT platforms have a Headphone and Mic jack */
 30static const struct snd_soc_dapm_widget haswell_widgets[] = {
 31	SND_SOC_DAPM_HP("Headphones", NULL),
 32	SND_SOC_DAPM_MIC("Mic", NULL),
 33};
 34
 35static const struct snd_soc_dapm_route haswell_rt5640_map[] = {
 36
 37	{"Headphones", NULL, "HPOR"},
 38	{"Headphones", NULL, "HPOL"},
 39	{"IN2P", NULL, "Mic"},
 40
 41	/* CODEC BE connections */
 42	{"SSP0 CODEC IN", NULL, "AIF1 Capture"},
 43	{"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
 44};
 45
 46static int haswell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
 47			struct snd_pcm_hw_params *params)
 48{
 49	struct snd_interval *rate = hw_param_interval(params,
 50			SNDRV_PCM_HW_PARAM_RATE);
 51	struct snd_interval *channels = hw_param_interval(params,
 52						SNDRV_PCM_HW_PARAM_CHANNELS);
 53
 54	/* The ADSP will covert the FE rate to 48k, stereo */
 55	rate->min = rate->max = 48000;
 56	channels->min = channels->max = 2;
 57
 58	/* set SSP0 to 16 bit */
 59	params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 60	return 0;
 61}
 62
 63static int haswell_rt5640_hw_params(struct snd_pcm_substream *substream,
 64	struct snd_pcm_hw_params *params)
 65{
 66	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 67	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 68	int ret;
 69
 70	ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_MCLK, 12288000,
 71		SND_SOC_CLOCK_IN);
 72
 73	if (ret < 0) {
 74		dev_err(rtd->dev, "can't set codec sysclk configuration\n");
 75		return ret;
 76	}
 77
 78	/* set correct codec filter for DAI format and clock config */
 79	snd_soc_update_bits(rtd->codec, 0x83, 0xffff, 0x8000);
 80
 81	return ret;
 82}
 83
 84static struct snd_soc_ops haswell_rt5640_ops = {
 85	.hw_params = haswell_rt5640_hw_params,
 86};
 87
 88static int haswell_rtd_init(struct snd_soc_pcm_runtime *rtd)
 89{
 90	struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev);
 91	struct sst_hsw *haswell = pdata->dsp;
 92	int ret;
 93
 94	/* Set ADSP SSP port settings */
 95	ret = sst_hsw_device_set_config(haswell, SST_HSW_DEVICE_SSP_0,
 96		SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
 97		SST_HSW_DEVICE_CLOCK_MASTER, 9);
 98	if (ret < 0) {
 99		dev_err(rtd->dev, "failed to set device config\n");
100		return ret;
101	}
102
103	return 0;
104}
105
106static struct snd_soc_dai_link haswell_rt5640_dais[] = {
107	/* Front End DAI links */
108	{
109		.name = "System",
110		.stream_name = "System Playback/Capture",
111		.cpu_dai_name = "System Pin",
112		.platform_name = "haswell-pcm-audio",
113		.dynamic = 1,
114		.codec_name = "snd-soc-dummy",
115		.codec_dai_name = "snd-soc-dummy-dai",
116		.init = haswell_rtd_init,
117		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
118		.dpcm_playback = 1,
119		.dpcm_capture = 1,
120	},
121	{
122		.name = "Offload0",
123		.stream_name = "Offload0 Playback",
124		.cpu_dai_name = "Offload0 Pin",
125		.platform_name = "haswell-pcm-audio",
126		.dynamic = 1,
127		.codec_name = "snd-soc-dummy",
128		.codec_dai_name = "snd-soc-dummy-dai",
129		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
130		.dpcm_playback = 1,
131	},
132	{
133		.name = "Offload1",
134		.stream_name = "Offload1 Playback",
135		.cpu_dai_name = "Offload1 Pin",
136		.platform_name = "haswell-pcm-audio",
137		.dynamic = 1,
138		.codec_name = "snd-soc-dummy",
139		.codec_dai_name = "snd-soc-dummy-dai",
140		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
141		.dpcm_playback = 1,
142	},
143	{
144		.name = "Loopback",
145		.stream_name = "Loopback",
146		.cpu_dai_name = "Loopback Pin",
147		.platform_name = "haswell-pcm-audio",
148		.dynamic = 0,
149		.codec_name = "snd-soc-dummy",
150		.codec_dai_name = "snd-soc-dummy-dai",
151		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
152		.dpcm_capture = 1,
153	},
154
155	/* Back End DAI links */
156	{
157		/* SSP0 - Codec */
158		.name = "Codec",
159		.be_id = 0,
160		.cpu_dai_name = "snd-soc-dummy-dai",
161		.platform_name = "snd-soc-dummy",
162		.no_pcm = 1,
163		.codec_name = "i2c-INT33CA:00",
164		.codec_dai_name = "rt5640-aif1",
165		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
166			SND_SOC_DAIFMT_CBS_CFS,
167		.ignore_suspend = 1,
168		.ignore_pmdown_time = 1,
169		.be_hw_params_fixup = haswell_ssp0_fixup,
170		.ops = &haswell_rt5640_ops,
171		.dpcm_playback = 1,
172		.dpcm_capture = 1,
173	},
174};
175
176/* audio machine driver for Haswell Lynxpoint DSP + RT5640 */
177static struct snd_soc_card haswell_rt5640 = {
178	.name = "haswell-rt5640",
179	.owner = THIS_MODULE,
180	.dai_link = haswell_rt5640_dais,
181	.num_links = ARRAY_SIZE(haswell_rt5640_dais),
182	.dapm_widgets = haswell_widgets,
183	.num_dapm_widgets = ARRAY_SIZE(haswell_widgets),
184	.dapm_routes = haswell_rt5640_map,
185	.num_dapm_routes = ARRAY_SIZE(haswell_rt5640_map),
186	.fully_routed = true,
187};
188
189static int haswell_audio_probe(struct platform_device *pdev)
190{
191	haswell_rt5640.dev = &pdev->dev;
192
193	return devm_snd_soc_register_card(&pdev->dev, &haswell_rt5640);
194}
195
196static struct platform_driver haswell_audio = {
197	.probe = haswell_audio_probe,
198	.driver = {
199		.name = "haswell-audio",
200	},
201};
202
203module_platform_driver(haswell_audio)
204
205/* Module information */
206MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
207MODULE_DESCRIPTION("Intel SST Audio for Haswell Lynxpoint");
208MODULE_LICENSE("GPL v2");
209MODULE_ALIAS("platform:haswell-audio");