1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2021-2022 Intel Corporation
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 #include "../utils.h"
18
19 #define SKL_SSM_CODEC_DAI "ssm4567-hifi"
20
21 static struct snd_soc_codec_conf card_codec_conf[] = {
22 {
23 .dlc = COMP_CODEC_CONF("i2c-INT343B:00"),
24 .name_prefix = "Left",
25 },
26 {
27 .dlc = COMP_CODEC_CONF("i2c-INT343B:01"),
28 .name_prefix = "Right",
29 },
30 };
31
32 static const struct snd_kcontrol_new card_controls[] = {
33 SOC_DAPM_PIN_SWITCH("Left Speaker"),
34 SOC_DAPM_PIN_SWITCH("Right Speaker"),
35 };
36
37 static const struct snd_soc_dapm_widget card_widgets[] = {
38 SND_SOC_DAPM_SPK("Left Speaker", NULL),
39 SND_SOC_DAPM_SPK("Right Speaker", NULL),
40 };
41
42 static const struct snd_soc_dapm_route card_base_routes[] = {
43 {"Left Speaker", NULL, "Left OUT"},
44 {"Right Speaker", NULL, "Right OUT"},
45 };
46
avs_ssm4567_codec_init(struct snd_soc_pcm_runtime * runtime)47 static int avs_ssm4567_codec_init(struct snd_soc_pcm_runtime *runtime)
48 {
49 int ret;
50
51 /* Slot 1 for left */
52 ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_codec(runtime, 0), 0x01, 0x01, 2, 48);
53 if (ret < 0)
54 return ret;
55
56 /* Slot 2 for right */
57 ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_codec(runtime, 1), 0x02, 0x02, 2, 48);
58 if (ret < 0)
59 return ret;
60
61 return 0;
62 }
63
64 static int
avs_ssm4567_be_fixup(struct snd_soc_pcm_runtime * runrime,struct snd_pcm_hw_params * params)65 avs_ssm4567_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params)
66 {
67 struct snd_interval *rate, *channels;
68 struct snd_mask *fmt;
69
70 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
71 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
72 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
73
74 /* The ADSP will convert the FE rate to 48k, stereo */
75 rate->min = rate->max = 48000;
76 channels->min = channels->max = 2;
77
78 /* set SSP0 to 24 bit */
79 snd_mask_none(fmt);
80 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
81 return 0;
82 }
83
avs_create_dai_link(struct device * dev,const char * platform_name,int ssp_port,int tdm_slot,struct snd_soc_dai_link ** dai_link)84 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
85 int tdm_slot, struct snd_soc_dai_link **dai_link)
86 {
87 struct snd_soc_dai_link_component *platform;
88 struct snd_soc_dai_link *dl;
89
90 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
91 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
92 if (!dl || !platform)
93 return -ENOMEM;
94
95 platform->name = platform_name;
96
97 dl->name = devm_kasprintf(dev, GFP_KERNEL,
98 AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
99 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
100 dl->codecs = devm_kcalloc(dev, 2, sizeof(*dl->codecs), GFP_KERNEL);
101 if (!dl->name || !dl->cpus || !dl->codecs)
102 return -ENOMEM;
103
104 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
105 AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
106 dl->codecs[0].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:00");
107 dl->codecs[0].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi");
108 dl->codecs[1].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:01");
109 dl->codecs[1].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi");
110 if (!dl->cpus->dai_name || !dl->codecs[0].name || !dl->codecs[0].dai_name ||
111 !dl->codecs[1].name || !dl->codecs[1].dai_name)
112 return -ENOMEM;
113
114 dl->num_cpus = 1;
115 dl->num_codecs = 2;
116 dl->platforms = platform;
117 dl->num_platforms = 1;
118 dl->id = 0;
119 dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBC_CFC;
120 dl->init = avs_ssm4567_codec_init;
121 dl->be_hw_params_fixup = avs_ssm4567_be_fixup;
122 dl->nonatomic = 1;
123 dl->no_pcm = 1;
124 dl->ignore_pmdown_time = 1;
125
126 *dai_link = dl;
127
128 return 0;
129 }
130
avs_ssm4567_probe(struct platform_device * pdev)131 static int avs_ssm4567_probe(struct platform_device *pdev)
132 {
133 struct snd_soc_dai_link *dai_link;
134 struct snd_soc_acpi_mach *mach;
135 struct avs_mach_pdata *pdata;
136 struct snd_soc_card *card;
137 struct device *dev = &pdev->dev;
138 const char *pname;
139 int ssp_port, tdm_slot, ret;
140
141 mach = dev_get_platdata(dev);
142 pname = mach->mach_params.platform;
143 pdata = mach->pdata;
144
145 ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
146 if (ret)
147 return ret;
148
149 ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link);
150 if (ret) {
151 dev_err(dev, "Failed to create dai link: %d", ret);
152 return ret;
153 }
154
155 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
156 if (!card)
157 return -ENOMEM;
158
159 if (pdata->obsolete_card_names) {
160 card->name = "avs_ssm4567";
161 } else {
162 card->driver_name = "avs_ssm4567";
163 card->long_name = card->name = "AVS I2S SSM4567";
164 }
165 card->dev = dev;
166 card->owner = THIS_MODULE;
167 card->dai_link = dai_link;
168 card->num_links = 1;
169 card->codec_conf = card_codec_conf;
170 card->num_configs = ARRAY_SIZE(card_codec_conf);
171 card->controls = card_controls;
172 card->num_controls = ARRAY_SIZE(card_controls);
173 card->dapm_widgets = card_widgets;
174 card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
175 card->dapm_routes = card_base_routes;
176 card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
177 card->fully_routed = true;
178
179 ret = snd_soc_fixup_dai_links_platform_name(card, pname);
180 if (ret)
181 return ret;
182
183 return devm_snd_soc_register_deferrable_card(dev, card);
184 }
185
186 static const struct platform_device_id avs_ssm4567_driver_ids[] = {
187 {
188 .name = "avs_ssm4567",
189 },
190 {},
191 };
192 MODULE_DEVICE_TABLE(platform, avs_ssm4567_driver_ids);
193
194 static struct platform_driver avs_ssm4567_driver = {
195 .probe = avs_ssm4567_probe,
196 .driver = {
197 .name = "avs_ssm4567",
198 .pm = &snd_soc_pm_ops,
199 },
200 .id_table = avs_ssm4567_driver_ids,
201 };
202
203 module_platform_driver(avs_ssm4567_driver)
204
205 MODULE_DESCRIPTION("Intel ssm4567 machine driver");
206 MODULE_LICENSE("GPL");
207