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 */
30 static const struct snd_soc_dapm_widget haswell_widgets[] = {
31 SND_SOC_DAPM_HP("Headphones", NULL),
32 SND_SOC_DAPM_MIC("Mic", NULL),
33 };
34
35 static 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
haswell_ssp0_fixup(struct snd_soc_pcm_runtime * rtd,struct snd_pcm_hw_params * params)46 static 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
haswell_rt5640_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)63 static 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_component_update_bits(codec_dai->component, 0x83, 0xffff, 0x8000);
80
81 return ret;
82 }
83
84 static const struct snd_soc_ops haswell_rt5640_ops = {
85 .hw_params = haswell_rt5640_hw_params,
86 };
87
haswell_rtd_init(struct snd_soc_pcm_runtime * rtd)88 static int haswell_rtd_init(struct snd_soc_pcm_runtime *rtd)
89 {
90 struct snd_soc_component *component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
91 struct sst_pdata *pdata = dev_get_platdata(component->dev);
92 struct sst_hsw *haswell = pdata->dsp;
93 int ret;
94
95 /* Set ADSP SSP port settings */
96 ret = sst_hsw_device_set_config(haswell, SST_HSW_DEVICE_SSP_0,
97 SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
98 SST_HSW_DEVICE_CLOCK_MASTER, 9);
99 if (ret < 0) {
100 dev_err(rtd->dev, "failed to set device config\n");
101 return ret;
102 }
103
104 return 0;
105 }
106
107 static struct snd_soc_dai_link haswell_rt5640_dais[] = {
108 /* Front End DAI links */
109 {
110 .name = "System",
111 .stream_name = "System Playback/Capture",
112 .cpu_dai_name = "System Pin",
113 .platform_name = "haswell-pcm-audio",
114 .dynamic = 1,
115 .codec_name = "snd-soc-dummy",
116 .codec_dai_name = "snd-soc-dummy-dai",
117 .init = haswell_rtd_init,
118 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
119 .dpcm_playback = 1,
120 .dpcm_capture = 1,
121 },
122 {
123 .name = "Offload0",
124 .stream_name = "Offload0 Playback",
125 .cpu_dai_name = "Offload0 Pin",
126 .platform_name = "haswell-pcm-audio",
127 .dynamic = 1,
128 .codec_name = "snd-soc-dummy",
129 .codec_dai_name = "snd-soc-dummy-dai",
130 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
131 .dpcm_playback = 1,
132 },
133 {
134 .name = "Offload1",
135 .stream_name = "Offload1 Playback",
136 .cpu_dai_name = "Offload1 Pin",
137 .platform_name = "haswell-pcm-audio",
138 .dynamic = 1,
139 .codec_name = "snd-soc-dummy",
140 .codec_dai_name = "snd-soc-dummy-dai",
141 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
142 .dpcm_playback = 1,
143 },
144 {
145 .name = "Loopback",
146 .stream_name = "Loopback",
147 .cpu_dai_name = "Loopback Pin",
148 .platform_name = "haswell-pcm-audio",
149 .dynamic = 0,
150 .codec_name = "snd-soc-dummy",
151 .codec_dai_name = "snd-soc-dummy-dai",
152 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
153 .dpcm_capture = 1,
154 },
155
156 /* Back End DAI links */
157 {
158 /* SSP0 - Codec */
159 .name = "Codec",
160 .id = 0,
161 .cpu_dai_name = "snd-soc-dummy-dai",
162 .platform_name = "snd-soc-dummy",
163 .no_pcm = 1,
164 .codec_name = "i2c-INT33CA:00",
165 .codec_dai_name = "rt5640-aif1",
166 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
167 SND_SOC_DAIFMT_CBS_CFS,
168 .ignore_suspend = 1,
169 .ignore_pmdown_time = 1,
170 .be_hw_params_fixup = haswell_ssp0_fixup,
171 .ops = &haswell_rt5640_ops,
172 .dpcm_playback = 1,
173 .dpcm_capture = 1,
174 },
175 };
176
177 /* audio machine driver for Haswell Lynxpoint DSP + RT5640 */
178 static struct snd_soc_card haswell_rt5640 = {
179 .name = "haswell-rt5640",
180 .owner = THIS_MODULE,
181 .dai_link = haswell_rt5640_dais,
182 .num_links = ARRAY_SIZE(haswell_rt5640_dais),
183 .dapm_widgets = haswell_widgets,
184 .num_dapm_widgets = ARRAY_SIZE(haswell_widgets),
185 .dapm_routes = haswell_rt5640_map,
186 .num_dapm_routes = ARRAY_SIZE(haswell_rt5640_map),
187 .fully_routed = true,
188 };
189
haswell_audio_probe(struct platform_device * pdev)190 static int haswell_audio_probe(struct platform_device *pdev)
191 {
192 haswell_rt5640.dev = &pdev->dev;
193
194 return devm_snd_soc_register_card(&pdev->dev, &haswell_rt5640);
195 }
196
197 static struct platform_driver haswell_audio = {
198 .probe = haswell_audio_probe,
199 .driver = {
200 .name = "haswell-audio",
201 },
202 };
203
204 module_platform_driver(haswell_audio)
205
206 /* Module information */
207 MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
208 MODULE_DESCRIPTION("Intel SST Audio for Haswell Lynxpoint");
209 MODULE_LICENSE("GPL v2");
210 MODULE_ALIAS("platform:haswell-audio");
211
