1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2022-2025 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 <sound/jack.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 #include "../utils.h"
17
18 #define AVS_RT5640_MCLK_HZ 19200000
19 #define RT5640_CODEC_DAI "rt5640-aif1"
20
21 static const struct snd_soc_dapm_widget card_widgets[] = {
22 SND_SOC_DAPM_HP("Headphone Jack", NULL),
23 SND_SOC_DAPM_MIC("Mic Jack", NULL),
24 SND_SOC_DAPM_SPK("Speaker", NULL),
25 };
26
27 static const struct snd_soc_dapm_route card_routes[] = {
28 { "Headphone Jack", NULL, "HPOR" },
29 { "Headphone Jack", NULL, "HPOL" },
30 { "IN2P", NULL, "Mic Jack" },
31 { "IN2P", NULL, "MICBIAS1" },
32 { "Speaker", NULL, "SPOLP" },
33 { "Speaker", NULL, "SPOLN" },
34 { "Speaker", NULL, "SPORP" },
35 { "Speaker", NULL, "SPORN" },
36 };
37
38 static const struct snd_soc_jack_pin card_headset_pins[] = {
39 {
40 .pin = "Headphone Jack",
41 .mask = SND_JACK_HEADPHONE,
42 },
43 {
44 .pin = "Mic Jack",
45 .mask = SND_JACK_MICROPHONE,
46 },
47 };
48
avs_rt5640_codec_init(struct snd_soc_pcm_runtime * runtime)49 static int avs_rt5640_codec_init(struct snd_soc_pcm_runtime *runtime)
50 {
51 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
52 struct snd_soc_card *card = runtime->card;
53 struct snd_soc_jack_pin *pins;
54 struct snd_soc_jack *jack;
55 int num_pins, ret;
56
57 jack = snd_soc_card_get_drvdata(card);
58 num_pins = ARRAY_SIZE(card_headset_pins);
59
60 pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL);
61 if (!pins)
62 return -ENOMEM;
63
64 ret = snd_soc_card_jack_new_pins(card, "Headset Jack", SND_JACK_HEADSET, jack, pins,
65 num_pins);
66 if (ret)
67 return ret;
68
69 snd_soc_component_set_jack(codec_dai->component, jack, NULL);
70 card->dapm.idle_bias_off = true;
71
72 return 0;
73 }
74
avs_rt5640_codec_exit(struct snd_soc_pcm_runtime * runtime)75 static void avs_rt5640_codec_exit(struct snd_soc_pcm_runtime *runtime)
76 {
77 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
78
79 snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
80 }
81
avs_rt5640_be_fixup(struct snd_soc_pcm_runtime * runtime,struct snd_pcm_hw_params * params)82 static int avs_rt5640_be_fixup(struct snd_soc_pcm_runtime *runtime,
83 struct snd_pcm_hw_params *params)
84 {
85 struct snd_mask *fmask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
86
87 /* Format 24/32 is MSB-aligned for HDAudio and LSB-aligned for I2S. */
88 if (params_format(params) == SNDRV_PCM_FORMAT_S32_LE)
89 snd_mask_set_format(fmask, SNDRV_PCM_FORMAT_S24_LE);
90
91 return 0;
92 }
93
avs_rt5640_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)94 static int avs_rt5640_hw_params(struct snd_pcm_substream *substream,
95 struct snd_pcm_hw_params *params)
96 {
97 struct snd_soc_pcm_runtime *runtime = snd_soc_substream_to_rtd(substream);
98 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
99 int ret;
100
101 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_MCLK, AVS_RT5640_MCLK_HZ,
102 params_rate(params) * 512);
103 if (ret < 0) {
104 dev_err(runtime->dev, "Set codec PLL failed: %d\n", ret);
105 return ret;
106 }
107
108 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1, params_rate(params) * 512,
109 SND_SOC_CLOCK_IN);
110 if (ret < 0) {
111 dev_err(runtime->dev, "Set codec SCLK failed: %d\n", ret);
112 return ret;
113 }
114
115 ret = rt5640_sel_asrc_clk_src(codec_dai->component,
116 RT5640_DA_STEREO_FILTER | RT5640_AD_STEREO_FILTER |
117 RT5640_DA_MONO_L_FILTER | RT5640_DA_MONO_R_FILTER |
118 RT5640_AD_MONO_L_FILTER | RT5640_AD_MONO_R_FILTER,
119 RT5640_CLK_SEL_ASRC);
120 if (ret)
121 dev_err(runtime->dev, "Set codec ASRC failed: %d\n", ret);
122
123 return ret;
124 }
125
126 static const struct snd_soc_ops avs_rt5640_ops = {
127 .hw_params = avs_rt5640_hw_params,
128 };
129
avs_create_dai_link(struct device * dev,int ssp_port,int tdm_slot,struct snd_soc_acpi_mach * mach,struct snd_soc_dai_link ** dai_link)130 static int avs_create_dai_link(struct device *dev, int ssp_port, int tdm_slot,
131 struct snd_soc_acpi_mach *mach,
132 struct snd_soc_dai_link **dai_link)
133 {
134 struct snd_soc_dai_link_component *platform;
135 struct snd_soc_dai_link *dl;
136 u32 uid = 0;
137 int ret;
138
139 if (mach->uid) {
140 ret = kstrtou32(mach->uid, 0, &uid);
141 if (ret)
142 return ret;
143 uid--; /* 0-based indexing. */
144 }
145
146 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
147 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
148 if (!dl || !platform)
149 return -ENOMEM;
150
151 dl->name = devm_kasprintf(dev, GFP_KERNEL,
152 AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
153 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
154 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
155 if (!dl->name || !dl->cpus || !dl->codecs)
156 return -ENOMEM;
157
158 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
159 AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
160 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-10EC5640:0%d", uid);
161 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, RT5640_CODEC_DAI);
162 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
163 return -ENOMEM;
164
165 platform->name = dev_name(dev);
166 dl->num_cpus = 1;
167 dl->num_codecs = 1;
168 dl->platforms = platform;
169 dl->num_platforms = 1;
170 dl->id = 0;
171 dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC;
172 dl->init = avs_rt5640_codec_init;
173 dl->exit = avs_rt5640_codec_exit;
174 dl->be_hw_params_fixup = avs_rt5640_be_fixup;
175 dl->ops = &avs_rt5640_ops;
176 dl->nonatomic = 1;
177 dl->no_pcm = 1;
178
179 *dai_link = dl;
180
181 return 0;
182 }
183
avs_card_suspend_pre(struct snd_soc_card * card)184 static int avs_card_suspend_pre(struct snd_soc_card *card)
185 {
186 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT5640_CODEC_DAI);
187
188 return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
189 }
190
avs_card_resume_post(struct snd_soc_card * card)191 static int avs_card_resume_post(struct snd_soc_card *card)
192 {
193 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT5640_CODEC_DAI);
194 struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card);
195
196 return snd_soc_component_set_jack(codec_dai->component, jack, NULL);
197 }
198
avs_rt5640_probe(struct platform_device * pdev)199 static int avs_rt5640_probe(struct platform_device *pdev)
200 {
201 struct snd_soc_dai_link *dai_link;
202 struct device *dev = &pdev->dev;
203 struct snd_soc_acpi_mach *mach;
204 struct snd_soc_card *card;
205 struct snd_soc_jack *jack;
206 int ssp_port, tdm_slot, ret;
207
208 mach = dev_get_platdata(dev);
209
210 ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
211 if (ret)
212 return ret;
213
214 ret = avs_create_dai_link(dev, ssp_port, tdm_slot, mach, &dai_link);
215 if (ret) {
216 dev_err(dev, "Failed to create dai link: %d", ret);
217 return ret;
218 }
219
220 jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);
221 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
222 if (!jack || !card)
223 return -ENOMEM;
224
225 if (mach->uid) {
226 card->name = devm_kasprintf(dev, GFP_KERNEL, "AVS I2S ALC5640.%s", mach->uid);
227 if (!card->name)
228 return -ENOMEM;
229 } else {
230 card->name = "AVS I2S ALC5640";
231 }
232 card->driver_name = "avs_rt5640";
233 card->long_name = card->name;
234 card->dev = dev;
235 card->owner = THIS_MODULE;
236 card->suspend_pre = avs_card_suspend_pre;
237 card->resume_post = avs_card_resume_post;
238 card->dai_link = dai_link;
239 card->num_links = 1;
240 card->dapm_widgets = card_widgets;
241 card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
242 card->dapm_routes = card_routes;
243 card->num_dapm_routes = ARRAY_SIZE(card_routes);
244 card->fully_routed = true;
245 snd_soc_card_set_drvdata(card, jack);
246
247 return devm_snd_soc_register_deferrable_card(dev, card);
248 }
249
250 static const struct platform_device_id avs_rt5640_driver_ids[] = {
251 {
252 .name = "avs_rt5640",
253 },
254 {},
255 };
256 MODULE_DEVICE_TABLE(platform, avs_rt5640_driver_ids);
257
258 static struct platform_driver avs_rt5640_driver = {
259 .probe = avs_rt5640_probe,
260 .driver = {
261 .name = "avs_rt5640",
262 .pm = &snd_soc_pm_ops,
263 },
264 .id_table = avs_rt5640_driver_ids,
265 };
266
267 module_platform_driver(avs_rt5640_driver);
268
269 MODULE_DESCRIPTION("Intel rt5640 machine driver");
270 MODULE_LICENSE("GPL");
271