1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2024-2025 Intel Corporation
4 //
5 // Author: Cezary Rojewski <cezary.rojewski@intel.com>
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 "../utils.h"
16
17 static const struct snd_soc_dapm_widget card_widgets[] = {
18 SND_SOC_DAPM_HP("CPB Stereo HP 1", NULL),
19 SND_SOC_DAPM_HP("CPB Stereo HP 2", NULL),
20 SND_SOC_DAPM_HP("CPB Stereo HP 3", NULL),
21 SND_SOC_DAPM_LINE("CPB Line Out", NULL),
22 SND_SOC_DAPM_MIC("CPB Stereo Mic 1", NULL),
23 SND_SOC_DAPM_MIC("CPB Stereo Mic 2", NULL),
24 SND_SOC_DAPM_LINE("CPB Line In", NULL),
25 };
26
27 static const struct snd_soc_dapm_route card_routes[] = {
28 { "CPB Stereo HP 1", NULL, "AOUT1L" },
29 { "CPB Stereo HP 1", NULL, "AOUT1R" },
30 { "CPB Stereo HP 2", NULL, "AOUT2L" },
31 { "CPB Stereo HP 2", NULL, "AOUT2R" },
32 { "CPB Stereo HP 3", NULL, "AOUT3L" },
33 { "CPB Stereo HP 3", NULL, "AOUT3R" },
34 { "CPB Line Out", NULL, "AOUT4L" },
35 { "CPB Line Out", NULL, "AOUT4R" },
36
37 { "AIN1L", NULL, "CPB Stereo Mic 1" },
38 { "AIN1R", NULL, "CPB Stereo Mic 1" },
39 { "AIN2L", NULL, "CPB Stereo Mic 2" },
40 { "AIN2R", NULL, "CPB Stereo Mic 2" },
41 { "AIN3L", NULL, "CPB Line In" },
42 { "AIN3R", NULL, "CPB Line In" },
43 };
44
avs_pcm3168a_be_fixup(struct snd_soc_pcm_runtime * runtime,struct snd_pcm_hw_params * params)45 static int avs_pcm3168a_be_fixup(struct snd_soc_pcm_runtime *runtime,
46 struct snd_pcm_hw_params *params)
47 {
48 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
49
50 /* Set SSP to 24 bit. */
51 snd_mask_none(fmt);
52 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
53
54 return 0;
55 }
56
57 SND_SOC_DAILINK_DEF(pcm3168a_dac,
58 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-PCM3168A:00", "pcm3168a-dac")));
59 SND_SOC_DAILINK_DEF(pcm3168a_adc,
60 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-PCM3168A:00", "pcm3168a-adc")));
61 SND_SOC_DAILINK_DEF(cpu_ssp0, DAILINK_COMP_ARRAY(COMP_CPU("SSP0 Pin")));
62 SND_SOC_DAILINK_DEF(cpu_ssp2, DAILINK_COMP_ARRAY(COMP_CPU("SSP2 Pin")));
63
avs_create_dai_links(struct device * dev,struct snd_soc_dai_link ** links,int * num_links)64 static int avs_create_dai_links(struct device *dev, struct snd_soc_dai_link **links, int *num_links)
65 {
66 struct snd_soc_dai_link_component *platform;
67 struct snd_soc_dai_link *dl;
68 const int num_dl = 2;
69
70 dl = devm_kcalloc(dev, num_dl, sizeof(*dl), GFP_KERNEL);
71 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
72 if (!dl || !platform)
73 return -ENOMEM;
74
75 platform->name = dev_name(dev);
76 dl[0].num_cpus = 1;
77 dl[0].num_codecs = 1;
78 dl[0].platforms = platform;
79 dl[0].num_platforms = 1;
80 dl[0].dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBP_CFP;
81 dl[0].be_hw_params_fixup = avs_pcm3168a_be_fixup;
82 dl[0].nonatomic = 1;
83 dl[0].no_pcm = 1;
84 memcpy(&dl[1], &dl[0], sizeof(*dl));
85
86 dl[0].name = "SSP0-Codec-dac";
87 dl[0].cpus = cpu_ssp0;
88 dl[0].codecs = pcm3168a_dac;
89 dl[1].name = "SSP2-Codec-adc";
90 dl[1].cpus = cpu_ssp2;
91 dl[1].codecs = pcm3168a_adc;
92
93 *links = dl;
94 *num_links = num_dl;
95 return 0;
96 }
97
avs_pcm3168a_probe(struct platform_device * pdev)98 static int avs_pcm3168a_probe(struct platform_device *pdev)
99 {
100 struct snd_soc_acpi_mach *mach;
101 struct avs_mach_pdata *pdata;
102 struct device *dev = &pdev->dev;
103 struct snd_soc_card *card;
104 int ret;
105
106 mach = dev_get_platdata(dev);
107 pdata = mach->pdata;
108
109 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
110 if (!card)
111 return -ENOMEM;
112
113 ret = avs_create_dai_links(dev, &card->dai_link, &card->num_links);
114 if (ret)
115 return ret;
116
117 if (pdata->obsolete_card_names) {
118 card->name = "avs_pcm3168a";
119 } else {
120 card->driver_name = "avs_pcm3168a";
121 card->long_name = card->name = "AVS I2S PCM3168A";
122 }
123 card->dev = dev;
124 card->owner = THIS_MODULE;
125 card->dapm_widgets = card_widgets;
126 card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
127 card->dapm_routes = card_routes;
128 card->num_dapm_routes = ARRAY_SIZE(card_routes);
129 card->fully_routed = true;
130
131 return devm_snd_soc_register_deferrable_card(dev, card);
132 }
133
134 static const struct platform_device_id avs_pcm3168a_driver_ids[] = {
135 {
136 .name = "avs_pcm3168a",
137 },
138 {},
139 };
140 MODULE_DEVICE_TABLE(platform, avs_pcm3168a_driver_ids);
141
142 static struct platform_driver avs_pcm3168a_driver = {
143 .probe = avs_pcm3168a_probe,
144 .driver = {
145 .name = "avs_pcm3168a",
146 .pm = &snd_soc_pm_ops,
147 },
148 .id_table = avs_pcm3168a_driver_ids,
149 };
150
151 module_platform_driver(avs_pcm3168a_driver);
152
153 MODULE_DESCRIPTION("Intel pcm3168a machine driver");
154 MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>");
155 MODULE_LICENSE("GPL");
156