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 */
19 static const struct snd_soc_dapm_widget haswell_widgets[] = {
20 SND_SOC_DAPM_HP("Headphones", NULL),
21 SND_SOC_DAPM_MIC("Mic", NULL),
22 };
23
24 static 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
haswell_ssp0_fixup(struct snd_soc_pcm_runtime * rtd,struct snd_pcm_hw_params * params)35 static 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
haswell_rt5640_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)52 static 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
73 static const struct snd_soc_ops haswell_rt5640_ops = {
74 .hw_params = haswell_rt5640_hw_params,
75 };
76
77 SND_SOC_DAILINK_DEF(dummy,
78 DAILINK_COMP_ARRAY(COMP_DUMMY()));
79
80 SND_SOC_DAILINK_DEF(system,
81 DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
82
83 SND_SOC_DAILINK_DEF(offload0,
84 DAILINK_COMP_ARRAY(COMP_CPU("Offload0 Pin")));
85
86 SND_SOC_DAILINK_DEF(offload1,
87 DAILINK_COMP_ARRAY(COMP_CPU("Offload1 Pin")));
88
89 SND_SOC_DAILINK_DEF(loopback,
90 DAILINK_COMP_ARRAY(COMP_CPU("Loopback Pin")));
91
92 SND_SOC_DAILINK_DEF(codec,
93 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-INT33CA:00", "rt5640-aif1")));
94
95 SND_SOC_DAILINK_DEF(platform,
96 DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio")));
97
98 SND_SOC_DAILINK_DEF(ssp0_port,
99 DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port")));
100
101 static 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 */
159 static 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
haswell_audio_probe(struct platform_device * pdev)171 static 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 platform 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
188 static 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
196 module_platform_driver(haswell_audio)
197
198 /* Module information */
199 MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
200 MODULE_DESCRIPTION("Intel SST Audio for Haswell Lynxpoint");
201 MODULE_LICENSE("GPL v2");
202 MODULE_ALIAS("platform:haswell-audio");
203