1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
4 //
5 // Authors: Cezary Rojewski <cezary.rojewski@intel.com>
6 // Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
7 //
8
9 #include <linux/module.h>
10 #include <linux/platform_device.h>
11 #include <sound/core.h>
12 #include <sound/pcm.h>
13 #include <sound/pcm_params.h>
14 #include <sound/soc.h>
15 #include <sound/soc-acpi.h>
16 #include "../../../codecs/nau8825.h"
17
18 #define SKL_SSM_CODEC_DAI "ssm4567-hifi"
19
20 static struct snd_soc_codec_conf card_codec_conf[] = {
21 {
22 .dlc = COMP_CODEC_CONF("i2c-INT343B:00"),
23 .name_prefix = "Left",
24 },
25 {
26 .dlc = COMP_CODEC_CONF("i2c-INT343B:01"),
27 .name_prefix = "Right",
28 },
29 };
30
31 static const struct snd_kcontrol_new card_controls[] = {
32 SOC_DAPM_PIN_SWITCH("Left Speaker"),
33 SOC_DAPM_PIN_SWITCH("Right Speaker"),
34 };
35
36 static const struct snd_soc_dapm_widget card_widgets[] = {
37 SND_SOC_DAPM_SPK("Left Speaker", NULL),
38 SND_SOC_DAPM_SPK("Right Speaker", NULL),
39 SND_SOC_DAPM_SPK("DP1", NULL),
40 SND_SOC_DAPM_SPK("DP2", NULL),
41 };
42
43 static const struct snd_soc_dapm_route card_base_routes[] = {
44 {"Left Speaker", NULL, "Left OUT"},
45 {"Right Speaker", NULL, "Right OUT"},
46 };
47
avs_ssm4567_codec_init(struct snd_soc_pcm_runtime * runtime)48 static int avs_ssm4567_codec_init(struct snd_soc_pcm_runtime *runtime)
49 {
50 int ret;
51
52 /* Slot 1 for left */
53 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(runtime, 0), 0x01, 0x01, 2, 48);
54 if (ret < 0)
55 return ret;
56
57 /* Slot 2 for right */
58 ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(runtime, 1), 0x02, 0x02, 2, 48);
59 if (ret < 0)
60 return ret;
61
62 return 0;
63 }
64
65 static int
avs_ssm4567_be_fixup(struct snd_soc_pcm_runtime * runrime,struct snd_pcm_hw_params * params)66 avs_ssm4567_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params)
67 {
68 struct snd_interval *rate, *channels;
69 struct snd_mask *fmt;
70
71 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
72 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
73 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
74
75 /* The ADSP will convert the FE rate to 48k, stereo */
76 rate->min = rate->max = 48000;
77 channels->min = channels->max = 2;
78
79 /* set SSP0 to 24 bit */
80 snd_mask_none(fmt);
81 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
82 return 0;
83 }
84
avs_create_dai_link(struct device * dev,const char * platform_name,int ssp_port,struct snd_soc_dai_link ** dai_link)85 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
86 struct snd_soc_dai_link **dai_link)
87 {
88 struct snd_soc_dai_link_component *platform;
89 struct snd_soc_dai_link *dl;
90
91 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
92 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
93 if (!dl || !platform)
94 return -ENOMEM;
95
96 platform->name = platform_name;
97
98 dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port);
99 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
100 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs) * 2, GFP_KERNEL);
101 if (!dl->name || !dl->cpus || !dl->codecs)
102 return -ENOMEM;
103
104 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port);
105 dl->codecs[0].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:00");
106 dl->codecs[0].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi");
107 dl->codecs[1].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:01");
108 dl->codecs[1].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi");
109 if (!dl->cpus->dai_name || !dl->codecs[0].name || !dl->codecs[0].dai_name ||
110 !dl->codecs[1].name || !dl->codecs[1].dai_name)
111 return -ENOMEM;
112
113 dl->num_cpus = 1;
114 dl->num_codecs = 2;
115 dl->platforms = platform;
116 dl->num_platforms = 1;
117 dl->id = 0;
118 dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBS_CFS;
119 dl->init = avs_ssm4567_codec_init;
120 dl->be_hw_params_fixup = avs_ssm4567_be_fixup;
121 dl->nonatomic = 1;
122 dl->no_pcm = 1;
123 dl->dpcm_capture = 1;
124 dl->dpcm_playback = 1;
125 dl->ignore_pmdown_time = 1;
126
127 *dai_link = dl;
128
129 return 0;
130 }
131
avs_ssm4567_probe(struct platform_device * pdev)132 static int avs_ssm4567_probe(struct platform_device *pdev)
133 {
134 struct snd_soc_dai_link *dai_link;
135 struct snd_soc_acpi_mach *mach;
136 struct snd_soc_card *card;
137 struct device *dev = &pdev->dev;
138 const char *pname;
139 int ssp_port, ret;
140
141 mach = dev_get_platdata(dev);
142 pname = mach->mach_params.platform;
143 ssp_port = __ffs(mach->mach_params.i2s_link_mask);
144
145 ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link);
146 if (ret) {
147 dev_err(dev, "Failed to create dai link: %d", ret);
148 return ret;
149 }
150
151 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
152 if (!card)
153 return -ENOMEM;
154
155 card->name = "avs_ssm4567-adi";
156 card->dev = dev;
157 card->owner = THIS_MODULE;
158 card->dai_link = dai_link;
159 card->num_links = 1;
160 card->codec_conf = card_codec_conf;
161 card->num_configs = ARRAY_SIZE(card_codec_conf);
162 card->controls = card_controls;
163 card->num_controls = ARRAY_SIZE(card_controls);
164 card->dapm_widgets = card_widgets;
165 card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
166 card->dapm_routes = card_base_routes;
167 card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
168 card->fully_routed = true;
169
170 ret = snd_soc_fixup_dai_links_platform_name(card, pname);
171 if (ret)
172 return ret;
173
174 return devm_snd_soc_register_card(dev, card);
175 }
176
177 static struct platform_driver avs_ssm4567_driver = {
178 .probe = avs_ssm4567_probe,
179 .driver = {
180 .name = "avs_ssm4567",
181 .pm = &snd_soc_pm_ops,
182 },
183 };
184
185 module_platform_driver(avs_ssm4567_driver)
186
187 MODULE_LICENSE("GPL");
188 MODULE_ALIAS("platform:avs_ssm4567");
189