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 <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/rt286.h"
16
17 #define RT286_CODEC_DAI "rt286-aif1"
18
19 static const struct snd_kcontrol_new card_controls[] = {
20 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
21 SOC_DAPM_PIN_SWITCH("Mic Jack"),
22 SOC_DAPM_PIN_SWITCH("Speaker"),
23 };
24
25 static const struct snd_soc_dapm_widget card_widgets[] = {
26 SND_SOC_DAPM_HP("Headphone Jack", NULL),
27 SND_SOC_DAPM_MIC("Mic Jack", NULL),
28 SND_SOC_DAPM_SPK("Speaker", NULL),
29 };
30
31 static const struct snd_soc_dapm_route card_base_routes[] = {
32 /* HP jack connectors - unknown if we have jack detect */
33 {"Headphone Jack", NULL, "HPO Pin"},
34 {"MIC1", NULL, "Mic Jack"},
35
36 {"Speaker", NULL, "SPOR"},
37 {"Speaker", NULL, "SPOL"},
38 };
39
40 static struct snd_soc_jack_pin card_headset_pins[] = {
41 {
42 .pin = "Headphone Jack",
43 .mask = SND_JACK_HEADPHONE,
44 },
45 {
46 .pin = "Mic Jack",
47 .mask = SND_JACK_MICROPHONE,
48 },
49 };
50
avs_rt286_codec_init(struct snd_soc_pcm_runtime * runtime)51 static int avs_rt286_codec_init(struct snd_soc_pcm_runtime *runtime)
52 {
53 struct snd_soc_card *card = runtime->card;
54 struct snd_soc_jack_pin *pins;
55 struct snd_soc_jack *jack;
56 int num_pins, ret;
57
58 jack = snd_soc_card_get_drvdata(card);
59 num_pins = ARRAY_SIZE(card_headset_pins);
60
61 pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL);
62 if (!pins)
63 return -ENOMEM;
64
65 ret = snd_soc_card_jack_new_pins(card, "Headset", SND_JACK_HEADSET | SND_JACK_BTN_0, jack,
66 pins, num_pins);
67 if (ret)
68 return ret;
69
70 return snd_soc_component_set_jack(asoc_rtd_to_codec(runtime, 0)->component, jack, NULL);
71 }
72
avs_rt286_codec_exit(struct snd_soc_pcm_runtime * rtd)73 static void avs_rt286_codec_exit(struct snd_soc_pcm_runtime *rtd)
74 {
75 snd_soc_component_set_jack(asoc_rtd_to_codec(rtd, 0)->component, NULL, NULL);
76 }
77
avs_rt286_be_fixup(struct snd_soc_pcm_runtime * runtime,struct snd_pcm_hw_params * params)78 static int avs_rt286_be_fixup(struct snd_soc_pcm_runtime *runtime, struct snd_pcm_hw_params *params)
79 {
80 struct snd_interval *rate, *channels;
81 struct snd_mask *fmt;
82
83 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
84 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
85 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
86
87 /* The ADSP will convert the FE rate to 48k, stereo */
88 rate->min = rate->max = 48000;
89 channels->min = channels->max = 2;
90
91 /* set SSP0 to 24 bit */
92 snd_mask_none(fmt);
93 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
94
95 return 0;
96 }
97
98 static int
avs_rt286_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)99 avs_rt286_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
100 {
101 struct snd_soc_pcm_runtime *runtime = asoc_substream_to_rtd(substream);
102 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0);
103 int ret;
104
105 ret = snd_soc_dai_set_sysclk(codec_dai, RT286_SCLK_S_PLL, 24000000, SND_SOC_CLOCK_IN);
106 if (ret < 0)
107 dev_err(runtime->dev, "Set codec sysclk failed: %d\n", ret);
108
109 return ret;
110 }
111
112 static const struct snd_soc_ops avs_rt286_ops = {
113 .hw_params = avs_rt286_hw_params,
114 };
115
avs_create_dai_link(struct device * dev,const char * platform_name,int ssp_port,struct snd_soc_dai_link ** dai_link)116 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
117 struct snd_soc_dai_link **dai_link)
118 {
119 struct snd_soc_dai_link_component *platform;
120 struct snd_soc_dai_link *dl;
121
122 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
123 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
124 if (!dl || !platform)
125 return -ENOMEM;
126
127 platform->name = platform_name;
128
129 dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port);
130 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
131 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
132 if (!dl->name || !dl->cpus || !dl->codecs)
133 return -ENOMEM;
134
135 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port);
136 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343A:00");
137 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, RT286_CODEC_DAI);
138 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
139 return -ENOMEM;
140
141 dl->num_cpus = 1;
142 dl->num_codecs = 1;
143 dl->platforms = platform;
144 dl->num_platforms = 1;
145 dl->id = 0;
146 dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;
147 dl->init = avs_rt286_codec_init;
148 dl->exit = avs_rt286_codec_exit;
149 dl->be_hw_params_fixup = avs_rt286_be_fixup;
150 dl->ops = &avs_rt286_ops;
151 dl->nonatomic = 1;
152 dl->no_pcm = 1;
153 dl->dpcm_capture = 1;
154 dl->dpcm_playback = 1;
155
156 *dai_link = dl;
157
158 return 0;
159 }
160
avs_create_dapm_routes(struct device * dev,int ssp_port,struct snd_soc_dapm_route ** routes,int * num_routes)161 static int avs_create_dapm_routes(struct device *dev, int ssp_port,
162 struct snd_soc_dapm_route **routes, int *num_routes)
163 {
164 struct snd_soc_dapm_route *dr;
165 const int num_base = ARRAY_SIZE(card_base_routes);
166 const int num_dr = num_base + 2;
167 int idx;
168
169 dr = devm_kcalloc(dev, num_dr, sizeof(*dr), GFP_KERNEL);
170 if (!dr)
171 return -ENOMEM;
172
173 memcpy(dr, card_base_routes, num_base * sizeof(*dr));
174
175 idx = num_base;
176 dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "AIF1 Playback");
177 dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Tx", ssp_port);
178 if (!dr[idx].sink || !dr[idx].source)
179 return -ENOMEM;
180
181 idx++;
182 dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Rx", ssp_port);
183 dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "AIF1 Capture");
184 if (!dr[idx].sink || !dr[idx].source)
185 return -ENOMEM;
186
187 *routes = dr;
188 *num_routes = num_dr;
189
190 return 0;
191 }
192
avs_card_suspend_pre(struct snd_soc_card * card)193 static int avs_card_suspend_pre(struct snd_soc_card *card)
194 {
195 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT286_CODEC_DAI);
196
197 return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
198 }
199
avs_card_resume_post(struct snd_soc_card * card)200 static int avs_card_resume_post(struct snd_soc_card *card)
201 {
202 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT286_CODEC_DAI);
203 struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card);
204
205 return snd_soc_component_set_jack(codec_dai->component, jack, NULL);
206 }
207
avs_rt286_probe(struct platform_device * pdev)208 static int avs_rt286_probe(struct platform_device *pdev)
209 {
210 struct snd_soc_dapm_route *routes;
211 struct snd_soc_dai_link *dai_link;
212 struct snd_soc_acpi_mach *mach;
213 struct snd_soc_card *card;
214 struct snd_soc_jack *jack;
215 struct device *dev = &pdev->dev;
216 const char *pname;
217 int num_routes, ssp_port, ret;
218
219 mach = dev_get_platdata(dev);
220 pname = mach->mach_params.platform;
221 ssp_port = __ffs(mach->mach_params.i2s_link_mask);
222
223 ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link);
224 if (ret) {
225 dev_err(dev, "Failed to create dai link: %d", ret);
226 return ret;
227 }
228
229 ret = avs_create_dapm_routes(dev, ssp_port, &routes, &num_routes);
230 if (ret) {
231 dev_err(dev, "Failed to create dapm routes: %d", ret);
232 return ret;
233 }
234
235 jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);
236 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
237 if (!jack || !card)
238 return -ENOMEM;
239
240 card->name = "avs_rt286";
241 card->dev = dev;
242 card->owner = THIS_MODULE;
243 card->suspend_pre = avs_card_suspend_pre;
244 card->resume_post = avs_card_resume_post;
245 card->dai_link = dai_link;
246 card->num_links = 1;
247 card->controls = card_controls;
248 card->num_controls = ARRAY_SIZE(card_controls);
249 card->dapm_widgets = card_widgets;
250 card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
251 card->dapm_routes = routes;
252 card->num_dapm_routes = num_routes;
253 card->fully_routed = true;
254 snd_soc_card_set_drvdata(card, jack);
255
256 ret = snd_soc_fixup_dai_links_platform_name(card, pname);
257 if (ret)
258 return ret;
259
260 return devm_snd_soc_register_card(dev, card);
261 }
262
263 static struct platform_driver avs_rt286_driver = {
264 .probe = avs_rt286_probe,
265 .driver = {
266 .name = "avs_rt286",
267 .pm = &snd_soc_pm_ops,
268 },
269 };
270
271 module_platform_driver(avs_rt286_driver);
272
273 MODULE_LICENSE("GPL");
274 MODULE_ALIAS("platform:avs_rt286");
275