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 "sst-dsp.h"
 25#include "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	snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
 60				    SNDRV_PCM_HW_PARAM_FIRST_MASK],
 61				    SNDRV_PCM_FORMAT_S16_LE);
 62	return 0;
 63}
 64
 65static int haswell_rt5640_hw_params(struct snd_pcm_substream *substream,
 66	struct snd_pcm_hw_params *params)
 67{
 68	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 69	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 70	int ret;
 71
 72	ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_MCLK, 12288000,
 73		SND_SOC_CLOCK_IN);
 74
 75	if (ret < 0) {
 76		dev_err(rtd->dev, "can't set codec sysclk configuration\n");
 77		return ret;
 78	}
 79
 80	/* set correct codec filter for DAI format and clock config */
 81	snd_soc_update_bits(rtd->codec, 0x83, 0xffff, 0x8000);
 82
 83	return ret;
 84}
 85
 86static struct snd_soc_ops haswell_rt5640_ops = {
 87	.hw_params = haswell_rt5640_hw_params,
 88};
 89
 90static int haswell_rtd_init(struct snd_soc_pcm_runtime *rtd)
 91{
 92	struct snd_soc_codec *codec = rtd->codec;
 93	struct snd_soc_dapm_context *dapm = &codec->dapm;
 94	struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev);
 95	struct sst_hsw *haswell = pdata->dsp;
 96	int ret;
 97
 98	/* Set ADSP SSP port settings */
 99	ret = sst_hsw_device_set_config(haswell, SST_HSW_DEVICE_SSP_0,
100		SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
101		SST_HSW_DEVICE_CLOCK_MASTER, 9);
102	if (ret < 0) {
103		dev_err(rtd->dev, "failed to set device config\n");
104		return ret;
105	}
106
107	/* always connected */
108	snd_soc_dapm_enable_pin(dapm, "Headphones");
109	snd_soc_dapm_enable_pin(dapm, "Mic");
110
111	return 0;
112}
113
114static struct snd_soc_dai_link haswell_rt5640_dais[] = {
115	/* Front End DAI links */
116	{
117		.name = "System",
118		.stream_name = "System Playback",
119		.cpu_dai_name = "System Pin",
120		.platform_name = "haswell-pcm-audio",
121		.dynamic = 1,
122		.codec_name = "snd-soc-dummy",
123		.codec_dai_name = "snd-soc-dummy-dai",
124		.init = haswell_rtd_init,
125		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
126		.dpcm_playback = 1,
127	},
128	{
129		.name = "Offload0",
130		.stream_name = "Offload0 Playback",
131		.cpu_dai_name = "Offload0 Pin",
132		.platform_name = "haswell-pcm-audio",
133		.dynamic = 1,
134		.codec_name = "snd-soc-dummy",
135		.codec_dai_name = "snd-soc-dummy-dai",
136		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
137		.dpcm_playback = 1,
138	},
139	{
140		.name = "Offload1",
141		.stream_name = "Offload1 Playback",
142		.cpu_dai_name = "Offload1 Pin",
143		.platform_name = "haswell-pcm-audio",
144		.dynamic = 1,
145		.codec_name = "snd-soc-dummy",
146		.codec_dai_name = "snd-soc-dummy-dai",
147		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
148		.dpcm_playback = 1,
149	},
150	{
151		.name = "Loopback",
152		.stream_name = "Loopback",
153		.cpu_dai_name = "Loopback Pin",
154		.platform_name = "haswell-pcm-audio",
155		.dynamic = 0,
156		.codec_name = "snd-soc-dummy",
157		.codec_dai_name = "snd-soc-dummy-dai",
158		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
159		.dpcm_capture = 1,
160	},
161	{
162		.name = "Capture",
163		.stream_name = "Capture",
164		.cpu_dai_name = "Capture Pin",
165		.platform_name = "haswell-pcm-audio",
166		.dynamic = 1,
167		.codec_name = "snd-soc-dummy",
168		.codec_dai_name = "snd-soc-dummy-dai",
169		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
170		.dpcm_capture = 1,
171	},
172
173	/* Back End DAI links */
174	{
175		/* SSP0 - Codec */
176		.name = "Codec",
177		.be_id = 0,
178		.cpu_dai_name = "snd-soc-dummy-dai",
179		.platform_name = "snd-soc-dummy",
180		.no_pcm = 1,
181		.codec_name = "i2c-INT33CA:00",
182		.codec_dai_name = "rt5640-aif1",
183		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
184			SND_SOC_DAIFMT_CBS_CFS,
185		.ignore_suspend = 1,
186		.ignore_pmdown_time = 1,
187		.be_hw_params_fixup = haswell_ssp0_fixup,
188		.ops = &haswell_rt5640_ops,
189		.dpcm_playback = 1,
190		.dpcm_capture = 1,
191	},
192};
193
194/* audio machine driver for Haswell Lynxpoint DSP + RT5640 */
195static struct snd_soc_card haswell_rt5640 = {
196	.name = "haswell-rt5640",
197	.owner = THIS_MODULE,
198	.dai_link = haswell_rt5640_dais,
199	.num_links = ARRAY_SIZE(haswell_rt5640_dais),
200	.dapm_widgets = haswell_widgets,
201	.num_dapm_widgets = ARRAY_SIZE(haswell_widgets),
202	.dapm_routes = haswell_rt5640_map,
203	.num_dapm_routes = ARRAY_SIZE(haswell_rt5640_map),
204	.fully_routed = true,
205};
206
207static int haswell_audio_probe(struct platform_device *pdev)
208{
209	haswell_rt5640.dev = &pdev->dev;
210
211	return snd_soc_register_card(&haswell_rt5640);
212}
213
214static int haswell_audio_remove(struct platform_device *pdev)
215{
216	snd_soc_unregister_card(&haswell_rt5640);
217	return 0;
218}
219
220static struct platform_driver haswell_audio = {
221	.probe = haswell_audio_probe,
222	.remove = haswell_audio_remove,
223	.driver = {
224		.name = "haswell-audio",
225		.owner = THIS_MODULE,
226	},
227};
228
229module_platform_driver(haswell_audio)
230
231/* Module information */
232MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
233MODULE_DESCRIPTION("Intel SST Audio for Haswell Lynxpoint");
234MODULE_LICENSE("GPL v2");
235MODULE_ALIAS("platform:haswell-audio");