1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Sound card driver for Intel Haswell Lynx Point with Realtek 5640
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/pcm_params.h>
13 #include <sound/soc.h>
14 #include <sound/soc-acpi.h>
15 #include "../../codecs/rt5640.h"
16
17 static const struct snd_soc_dapm_widget card_widgets[] = {
18 SND_SOC_DAPM_HP("Headphones", NULL),
19 SND_SOC_DAPM_MIC("Mic", NULL),
20 };
21
22 static const struct snd_soc_dapm_route card_routes[] = {
23 {"Headphones", NULL, "HPOR"},
24 {"Headphones", NULL, "HPOL"},
25 {"IN2P", NULL, "Mic"},
26
27 /* CODEC BE connections */
28 {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
29 {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
30 };
31
codec_link_hw_params_fixup(struct snd_soc_pcm_runtime * rtd,struct snd_pcm_hw_params * params)32 static int codec_link_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
33 struct snd_pcm_hw_params *params)
34 {
35 struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
36 struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
37
38 /* The ADSP will convert the FE rate to 48k, stereo. */
39 rate->min = rate->max = 48000;
40 channels->min = channels->max = 2;
41 /* Set SSP0 to 16 bit. */
42 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
43
44 return 0;
45 }
46
codec_link_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)47 static int codec_link_hw_params(struct snd_pcm_substream *substream,
48 struct snd_pcm_hw_params *params)
49 {
50 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
51 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
52 int ret;
53
54 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_MCLK, 12288000, SND_SOC_CLOCK_IN);
55 if (ret < 0) {
56 dev_err(rtd->dev, "set codec sysclk failed: %d\n", ret);
57 return ret;
58 }
59
60 /* Set correct codec filter for DAI format and clock config. */
61 snd_soc_component_update_bits(codec_dai->component, 0x83, 0xffff, 0x8000);
62
63 return ret;
64 }
65
66 static const struct snd_soc_ops codec_link_ops = {
67 .hw_params = codec_link_hw_params,
68 };
69
70 SND_SOC_DAILINK_DEF(system, DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
71 SND_SOC_DAILINK_DEF(offload0, DAILINK_COMP_ARRAY(COMP_CPU("Offload0 Pin")));
72 SND_SOC_DAILINK_DEF(offload1, DAILINK_COMP_ARRAY(COMP_CPU("Offload1 Pin")));
73 SND_SOC_DAILINK_DEF(loopback, DAILINK_COMP_ARRAY(COMP_CPU("Loopback Pin")));
74
75 SND_SOC_DAILINK_DEF(dummy, DAILINK_COMP_ARRAY(COMP_DUMMY()));
76 SND_SOC_DAILINK_DEF(codec, DAILINK_COMP_ARRAY(COMP_CODEC("i2c-INT33CA:00", "rt5640-aif1")));
77 SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio")));
78 SND_SOC_DAILINK_DEF(ssp0_port, DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port")));
79
80 static struct snd_soc_dai_link card_dai_links[] = {
81 /* Front End DAI links */
82 {
83 .name = "System",
84 .stream_name = "System Playback/Capture",
85 .nonatomic = 1,
86 .dynamic = 1,
87 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
88 .dpcm_playback = 1,
89 .dpcm_capture = 1,
90 SND_SOC_DAILINK_REG(system, dummy, platform),
91 },
92 {
93 .name = "Offload0",
94 .stream_name = "Offload0 Playback",
95 .nonatomic = 1,
96 .dynamic = 1,
97 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
98 .dpcm_playback = 1,
99 SND_SOC_DAILINK_REG(offload0, dummy, platform),
100 },
101 {
102 .name = "Offload1",
103 .stream_name = "Offload1 Playback",
104 .nonatomic = 1,
105 .dynamic = 1,
106 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
107 .dpcm_playback = 1,
108 SND_SOC_DAILINK_REG(offload1, dummy, platform),
109 },
110 {
111 .name = "Loopback",
112 .stream_name = "Loopback",
113 .nonatomic = 1,
114 .dynamic = 1,
115 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
116 .dpcm_capture = 1,
117 SND_SOC_DAILINK_REG(loopback, dummy, platform),
118 },
119 /* Back End DAI links */
120 {
121 /* SSP0 - Codec */
122 .name = "Codec",
123 .id = 0,
124 .nonatomic = 1,
125 .no_pcm = 1,
126 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC,
127 .ignore_pmdown_time = 1,
128 .be_hw_params_fixup = codec_link_hw_params_fixup,
129 .ops = &codec_link_ops,
130 .dpcm_playback = 1,
131 .dpcm_capture = 1,
132 SND_SOC_DAILINK_REG(ssp0_port, codec, platform),
133 },
134 };
135
136 static struct snd_soc_card hsw_rt5640_card = {
137 .name = "haswell-rt5640",
138 .owner = THIS_MODULE,
139 .dai_link = card_dai_links,
140 .num_links = ARRAY_SIZE(card_dai_links),
141 .dapm_widgets = card_widgets,
142 .num_dapm_widgets = ARRAY_SIZE(card_widgets),
143 .dapm_routes = card_routes,
144 .num_dapm_routes = ARRAY_SIZE(card_routes),
145 .fully_routed = true,
146 };
147
hsw_rt5640_probe(struct platform_device * pdev)148 static int hsw_rt5640_probe(struct platform_device *pdev)
149 {
150 struct snd_soc_acpi_mach *mach;
151 struct device *dev = &pdev->dev;
152 int ret;
153
154 hsw_rt5640_card.dev = dev;
155 mach = dev_get_platdata(dev);
156
157 ret = snd_soc_fixup_dai_links_platform_name(&hsw_rt5640_card, mach->mach_params.platform);
158 if (ret)
159 return ret;
160
161 return devm_snd_soc_register_card(dev, &hsw_rt5640_card);
162 }
163
164 static struct platform_driver hsw_rt5640_driver = {
165 .probe = hsw_rt5640_probe,
166 .driver = {
167 .name = "hsw_rt5640",
168 .pm = &snd_soc_pm_ops,
169 },
170 };
171
172 module_platform_driver(hsw_rt5640_driver)
173
174 MODULE_AUTHOR("Liam Girdwood, Xingchao Wang");
175 MODULE_DESCRIPTION("Sound card driver for Intel Haswell Lynx Point with Realtek 5640");
176 MODULE_LICENSE("GPL");
177 MODULE_ALIAS("platform:hsw_rt5640");
178