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/clk.h>
10 #include <linux/dmi.h>
11 #include <linux/i2c.h>
12 #include <linux/input.h>
13 #include <linux/module.h>
14 #include <linux/platform_device.h>
15 #include <sound/core.h>
16 #include <sound/jack.h>
17 #include <sound/pcm.h>
18 #include <sound/pcm_params.h>
19 #include <sound/rt5682.h>
20 #include <sound/soc.h>
21 #include <sound/soc-acpi.h>
22 #include "../../common/soc-intel-quirks.h"
23 #include "../../../codecs/rt5682.h"
24
25 #define AVS_RT5682_SSP_CODEC(quirk) ((quirk) & GENMASK(2, 0))
26 #define AVS_RT5682_SSP_CODEC_MASK (GENMASK(2, 0))
27 #define AVS_RT5682_MCLK_EN BIT(3)
28 #define AVS_RT5682_MCLK_24MHZ BIT(4)
29 #define AVS_RT5682_CODEC_DAI_NAME "rt5682-aif1"
30
31 /* Default: MCLK on, MCLK 19.2M, SSP0 */
32 static unsigned long avs_rt5682_quirk = AVS_RT5682_MCLK_EN | AVS_RT5682_SSP_CODEC(0);
33
avs_rt5682_quirk_cb(const struct dmi_system_id * id)34 static int avs_rt5682_quirk_cb(const struct dmi_system_id *id)
35 {
36 avs_rt5682_quirk = (unsigned long)id->driver_data;
37 return 1;
38 }
39
40 static const struct dmi_system_id avs_rt5682_quirk_table[] = {
41 {
42 .callback = avs_rt5682_quirk_cb,
43 .matches = {
44 DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
45 DMI_MATCH(DMI_PRODUCT_NAME, "WhiskeyLake Client"),
46 },
47 .driver_data = (void *)(AVS_RT5682_MCLK_EN |
48 AVS_RT5682_MCLK_24MHZ |
49 AVS_RT5682_SSP_CODEC(1)),
50 },
51 {
52 .callback = avs_rt5682_quirk_cb,
53 .matches = {
54 DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
55 DMI_MATCH(DMI_PRODUCT_NAME, "Ice Lake Client"),
56 },
57 .driver_data = (void *)(AVS_RT5682_MCLK_EN |
58 AVS_RT5682_SSP_CODEC(0)),
59 },
60 {}
61 };
62
63 static const struct snd_kcontrol_new card_controls[] = {
64 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
65 SOC_DAPM_PIN_SWITCH("Headset Mic"),
66 };
67
68 static const struct snd_soc_dapm_widget card_widgets[] = {
69 SND_SOC_DAPM_HP("Headphone Jack", NULL),
70 SND_SOC_DAPM_MIC("Headset Mic", NULL),
71 };
72
73 static const struct snd_soc_dapm_route card_base_routes[] = {
74 /* HP jack connectors - unknown if we have jack detect */
75 { "Headphone Jack", NULL, "HPOL" },
76 { "Headphone Jack", NULL, "HPOR" },
77
78 /* other jacks */
79 { "IN1P", NULL, "Headset Mic" },
80 };
81
avs_rt5682_codec_init(struct snd_soc_pcm_runtime * runtime)82 static int avs_rt5682_codec_init(struct snd_soc_pcm_runtime *runtime)
83 {
84 struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component;
85 struct snd_soc_jack *jack;
86 struct snd_soc_card *card = runtime->card;
87 int ret;
88
89 jack = snd_soc_card_get_drvdata(card);
90
91 /* Need to enable ASRC function for 24MHz mclk rate */
92 if ((avs_rt5682_quirk & AVS_RT5682_MCLK_EN) &&
93 (avs_rt5682_quirk & AVS_RT5682_MCLK_24MHZ)) {
94 rt5682_sel_asrc_clk_src(component, RT5682_DA_STEREO1_FILTER |
95 RT5682_AD_STEREO1_FILTER, RT5682_CLK_SEL_I2S1_ASRC);
96 }
97
98 /*
99 * Headset buttons map to the google Reference headset.
100 * These can be configured by userspace.
101 */
102 ret = snd_soc_card_jack_new(card, "Headset", SND_JACK_HEADSET | SND_JACK_BTN_0 |
103 SND_JACK_BTN_1 | SND_JACK_BTN_2 | SND_JACK_BTN_3, jack);
104 if (ret) {
105 dev_err(card->dev, "Headset Jack creation failed: %d\n", ret);
106 return ret;
107 }
108
109 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
110 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
111 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
112 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
113
114 ret = snd_soc_component_set_jack(component, jack, NULL);
115 if (ret) {
116 dev_err(card->dev, "Headset Jack call-back failed: %d\n", ret);
117 return ret;
118 }
119
120 return 0;
121 };
122
avs_rt5682_codec_exit(struct snd_soc_pcm_runtime * rtd)123 static void avs_rt5682_codec_exit(struct snd_soc_pcm_runtime *rtd)
124 {
125 snd_soc_component_set_jack(asoc_rtd_to_codec(rtd, 0)->component, NULL, NULL);
126 }
127
128 static int
avs_rt5682_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)129 avs_rt5682_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
130 {
131 struct snd_soc_pcm_runtime *runtime = asoc_substream_to_rtd(substream);
132 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0);
133 int clk_id, clk_freq;
134 int pll_out, ret;
135
136 if (avs_rt5682_quirk & AVS_RT5682_MCLK_EN) {
137 clk_id = RT5682_PLL1_S_MCLK;
138 if (avs_rt5682_quirk & AVS_RT5682_MCLK_24MHZ)
139 clk_freq = 24000000;
140 else
141 clk_freq = 19200000;
142 } else {
143 clk_id = RT5682_PLL1_S_BCLK1;
144 clk_freq = params_rate(params) * 50;
145 }
146
147 pll_out = params_rate(params) * 512;
148
149 ret = snd_soc_dai_set_pll(codec_dai, 0, clk_id, clk_freq, pll_out);
150 if (ret < 0)
151 dev_err(runtime->dev, "snd_soc_dai_set_pll err = %d\n", ret);
152
153 /* Configure sysclk for codec */
154 ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL1, pll_out, SND_SOC_CLOCK_IN);
155 if (ret < 0)
156 dev_err(runtime->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
157
158 /* slot_width should equal or large than data length, set them be the same */
159 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x0, 0x0, 2, params_width(params));
160 if (ret < 0) {
161 dev_err(runtime->dev, "set TDM slot err:%d\n", ret);
162 return ret;
163 }
164
165 return 0;
166 }
167
168 static const struct snd_soc_ops avs_rt5682_ops = {
169 .hw_params = avs_rt5682_hw_params,
170 };
171
avs_create_dai_link(struct device * dev,const char * platform_name,int ssp_port,struct snd_soc_dai_link ** dai_link)172 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
173 struct snd_soc_dai_link **dai_link)
174 {
175 struct snd_soc_dai_link_component *platform;
176 struct snd_soc_dai_link *dl;
177
178 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
179 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
180 if (!dl || !platform)
181 return -ENOMEM;
182
183 platform->name = platform_name;
184
185 dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port);
186 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
187 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
188 if (!dl->name || !dl->cpus || !dl->codecs)
189 return -ENOMEM;
190
191 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port);
192 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-10EC5682:00");
193 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, AVS_RT5682_CODEC_DAI_NAME);
194 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
195 return -ENOMEM;
196
197 dl->num_cpus = 1;
198 dl->num_codecs = 1;
199 dl->platforms = platform;
200 dl->num_platforms = 1;
201 dl->id = 0;
202 dl->init = avs_rt5682_codec_init;
203 dl->exit = avs_rt5682_codec_exit;
204 dl->ops = &avs_rt5682_ops;
205 dl->nonatomic = 1;
206 dl->no_pcm = 1;
207 dl->dpcm_capture = 1;
208 dl->dpcm_playback = 1;
209
210 *dai_link = dl;
211
212 return 0;
213 }
214
avs_create_dapm_routes(struct device * dev,int ssp_port,struct snd_soc_dapm_route ** routes,int * num_routes)215 static int avs_create_dapm_routes(struct device *dev, int ssp_port,
216 struct snd_soc_dapm_route **routes, int *num_routes)
217 {
218 struct snd_soc_dapm_route *dr;
219 const int num_base = ARRAY_SIZE(card_base_routes);
220 const int num_dr = num_base + 2;
221 int idx;
222
223 dr = devm_kcalloc(dev, num_dr, sizeof(*dr), GFP_KERNEL);
224 if (!dr)
225 return -ENOMEM;
226
227 memcpy(dr, card_base_routes, num_base * sizeof(*dr));
228
229 idx = num_base;
230 dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "AIF1 Playback");
231 dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Tx", ssp_port);
232 if (!dr[idx].sink || !dr[idx].source)
233 return -ENOMEM;
234
235 idx++;
236 dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Rx", ssp_port);
237 dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "AIF1 Capture");
238 if (!dr[idx].sink || !dr[idx].source)
239 return -ENOMEM;
240
241 *routes = dr;
242 *num_routes = num_dr;
243
244 return 0;
245 }
246
avs_card_suspend_pre(struct snd_soc_card * card)247 static int avs_card_suspend_pre(struct snd_soc_card *card)
248 {
249 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, AVS_RT5682_CODEC_DAI_NAME);
250
251 return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
252 }
253
avs_card_resume_post(struct snd_soc_card * card)254 static int avs_card_resume_post(struct snd_soc_card *card)
255 {
256 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, AVS_RT5682_CODEC_DAI_NAME);
257 struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card);
258
259 return snd_soc_component_set_jack(codec_dai->component, jack, NULL);
260 }
261
avs_rt5682_probe(struct platform_device * pdev)262 static int avs_rt5682_probe(struct platform_device *pdev)
263 {
264 struct snd_soc_dapm_route *routes;
265 struct snd_soc_dai_link *dai_link;
266 struct snd_soc_acpi_mach *mach;
267 struct snd_soc_card *card;
268 struct snd_soc_jack *jack;
269 struct device *dev = &pdev->dev;
270 const char *pname;
271 int num_routes, ssp_port, ret;
272
273 if (pdev->id_entry && pdev->id_entry->driver_data)
274 avs_rt5682_quirk = (unsigned long)pdev->id_entry->driver_data;
275
276 dmi_check_system(avs_rt5682_quirk_table);
277 dev_dbg(dev, "avs_rt5682_quirk = %lx\n", avs_rt5682_quirk);
278
279 mach = dev_get_platdata(dev);
280 pname = mach->mach_params.platform;
281 ssp_port = __ffs(mach->mach_params.i2s_link_mask);
282
283 ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link);
284 if (ret) {
285 dev_err(dev, "Failed to create dai link: %d", ret);
286 return ret;
287 }
288
289 ret = avs_create_dapm_routes(dev, ssp_port, &routes, &num_routes);
290 if (ret) {
291 dev_err(dev, "Failed to create dapm routes: %d", ret);
292 return ret;
293 }
294
295 jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);
296 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
297 if (!jack || !card)
298 return -ENOMEM;
299
300 card->name = "avs_rt5682";
301 card->dev = dev;
302 card->owner = THIS_MODULE;
303 card->suspend_pre = avs_card_suspend_pre;
304 card->resume_post = avs_card_resume_post;
305 card->dai_link = dai_link;
306 card->num_links = 1;
307 card->controls = card_controls;
308 card->num_controls = ARRAY_SIZE(card_controls);
309 card->dapm_widgets = card_widgets;
310 card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
311 card->dapm_routes = routes;
312 card->num_dapm_routes = num_routes;
313 card->fully_routed = true;
314 snd_soc_card_set_drvdata(card, jack);
315
316 ret = snd_soc_fixup_dai_links_platform_name(card, pname);
317 if (ret)
318 return ret;
319
320 return devm_snd_soc_register_card(dev, card);
321 }
322
323 static struct platform_driver avs_rt5682_driver = {
324 .probe = avs_rt5682_probe,
325 .driver = {
326 .name = "avs_rt5682",
327 .pm = &snd_soc_pm_ops,
328 },
329 };
330
331 module_platform_driver(avs_rt5682_driver)
332
333 MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>");
334 MODULE_LICENSE("GPL");
335 MODULE_ALIAS("platform:avs_rt5682");
336