1 // SPDX-License-Identifier: GPL-2.0-only
2 //
3 // Copyright(c) 2023 Intel Corporation
4 //
5 // Authors: Cezary Rojewski <cezary.rojewski@intel.com>
6 // Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
7 //
8
9 #include <linux/device.h>
10 #include <linux/gpio/consumer.h>
11 #include <linux/input.h>
12 #include <linux/module.h>
13 #include <linux/platform_device.h>
14 #include <linux/processor.h>
15 #include <linux/slab.h>
16 #include <sound/jack.h>
17 #include <sound/pcm.h>
18 #include <sound/pcm_params.h>
19 #include <sound/soc.h>
20 #include <sound/soc-acpi.h>
21 #include <asm/cpu_device_id.h>
22 #include "../utils.h"
23
24 #define ES8336_CODEC_DAI "ES8316 HiFi"
25
26 struct avs_card_drvdata {
27 struct snd_soc_jack jack;
28 struct gpio_desc *gpiod;
29 };
30
31 static const struct acpi_gpio_params enable_gpio = { 0, 0, true };
32
33 static const struct acpi_gpio_mapping speaker_gpios[] = {
34 { "speaker-enable-gpios", &enable_gpio, 1, ACPI_GPIO_QUIRK_ONLY_GPIOIO },
35 { }
36 };
37
avs_es8336_speaker_power_event(struct snd_soc_dapm_widget * w,struct snd_kcontrol * kcontrol,int event)38 static int avs_es8336_speaker_power_event(struct snd_soc_dapm_widget *w,
39 struct snd_kcontrol *kcontrol, int event)
40 {
41 struct snd_soc_card *card = w->dapm->card;
42 struct avs_card_drvdata *data;
43 bool speaker_en;
44
45 data = snd_soc_card_get_drvdata(card);
46 /* As enable_gpio has active_low=true, logic is inverted. */
47 speaker_en = !SND_SOC_DAPM_EVENT_ON(event);
48
49 gpiod_set_value_cansleep(data->gpiod, speaker_en);
50 return 0;
51 }
52
53 static const struct snd_soc_dapm_widget card_widgets[] = {
54 SND_SOC_DAPM_SPK("Speaker", NULL),
55 SND_SOC_DAPM_HP("Headphone", NULL),
56 SND_SOC_DAPM_MIC("Headset Mic", NULL),
57 SND_SOC_DAPM_MIC("Internal Mic", NULL),
58
59 SND_SOC_DAPM_SUPPLY("Speaker Power", SND_SOC_NOPM, 0, 0,
60 avs_es8336_speaker_power_event,
61 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
62 };
63
64 static const struct snd_soc_dapm_route card_routes[] = {
65 {"Headphone", NULL, "HPOL"},
66 {"Headphone", NULL, "HPOR"},
67
68 /*
69 * There is no separate speaker output instead the speakers are muxed to
70 * the HP outputs. The mux is controlled by the "Speaker Power" widget.
71 */
72 {"Speaker", NULL, "HPOL"},
73 {"Speaker", NULL, "HPOR"},
74 {"Speaker", NULL, "Speaker Power"},
75
76 /* Mic route map */
77 {"MIC1", NULL, "Internal Mic"},
78 {"MIC2", NULL, "Headset Mic"},
79 };
80
81 static const struct snd_kcontrol_new card_controls[] = {
82 SOC_DAPM_PIN_SWITCH("Speaker"),
83 SOC_DAPM_PIN_SWITCH("Headphone"),
84 SOC_DAPM_PIN_SWITCH("Headset Mic"),
85 SOC_DAPM_PIN_SWITCH("Internal Mic"),
86 };
87
88 static const struct snd_soc_jack_pin card_headset_pins[] = {
89 {
90 .pin = "Headphone",
91 .mask = SND_JACK_HEADPHONE,
92 },
93 {
94 .pin = "Headset Mic",
95 .mask = SND_JACK_MICROPHONE,
96 },
97 };
98
avs_es8336_codec_init(struct snd_soc_pcm_runtime * runtime)99 static int avs_es8336_codec_init(struct snd_soc_pcm_runtime *runtime)
100 {
101 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
102 struct snd_soc_component *component = codec_dai->component;
103 struct snd_soc_card *card = runtime->card;
104 struct snd_soc_jack_pin *pins;
105 struct avs_card_drvdata *data;
106 struct gpio_desc *gpiod;
107 int num_pins, ret;
108
109 data = snd_soc_card_get_drvdata(card);
110 num_pins = ARRAY_SIZE(card_headset_pins);
111
112 pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL);
113 if (!pins)
114 return -ENOMEM;
115
116 ret = snd_soc_card_jack_new_pins(card, "Headset Jack", SND_JACK_HEADSET | SND_JACK_BTN_0,
117 &data->jack, pins, num_pins);
118 if (ret)
119 return ret;
120
121 ret = devm_acpi_dev_add_driver_gpios(codec_dai->dev, speaker_gpios);
122 if (ret)
123 dev_warn(codec_dai->dev, "Unable to add GPIO mapping table\n");
124
125 gpiod = gpiod_get_optional(codec_dai->dev, "speaker-enable", GPIOD_OUT_LOW);
126 if (IS_ERR(gpiod))
127 return dev_err_probe(codec_dai->dev, PTR_ERR(gpiod), "Get gpiod failed: %ld\n",
128 PTR_ERR(gpiod));
129
130 data->gpiod = gpiod;
131 snd_jack_set_key(data->jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
132 snd_soc_component_set_jack(component, &data->jack, NULL);
133
134 card->dapm.idle_bias_off = true;
135
136 return 0;
137 }
138
avs_es8336_codec_exit(struct snd_soc_pcm_runtime * runtime)139 static void avs_es8336_codec_exit(struct snd_soc_pcm_runtime *runtime)
140 {
141 struct avs_card_drvdata *data = snd_soc_card_get_drvdata(runtime->card);
142 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
143
144 snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
145 gpiod_put(data->gpiod);
146 }
147
avs_es8336_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)148 static int avs_es8336_hw_params(struct snd_pcm_substream *substream,
149 struct snd_pcm_hw_params *params)
150 {
151 struct snd_soc_pcm_runtime *runtime = snd_soc_substream_to_rtd(substream);
152 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
153 int clk_freq;
154 int ret;
155
156 switch (boot_cpu_data.x86_vfm) {
157 case INTEL_KABYLAKE_L:
158 case INTEL_KABYLAKE:
159 clk_freq = 24000000;
160 break;
161 default:
162 clk_freq = 19200000;
163 break;
164 }
165
166 ret = snd_soc_dai_set_sysclk(codec_dai, 1, clk_freq, SND_SOC_CLOCK_OUT);
167 if (ret < 0)
168 dev_err(runtime->dev, "Set codec sysclk failed: %d\n", ret);
169
170 return ret;
171 }
172
173 static const struct snd_soc_ops avs_es8336_ops = {
174 .hw_params = avs_es8336_hw_params,
175 };
176
avs_es8336_be_fixup(struct snd_soc_pcm_runtime * runtime,struct snd_pcm_hw_params * params)177 static int avs_es8336_be_fixup(struct snd_soc_pcm_runtime *runtime,
178 struct snd_pcm_hw_params *params)
179 {
180 struct snd_interval *rate, *channels;
181 struct snd_mask *fmt;
182
183 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
184 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
185 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
186
187 /* The ADSP will convert the FE rate to 48k, stereo */
188 rate->min = rate->max = 48000;
189 channels->min = channels->max = 2;
190
191 /* set SSPN to 24 bit */
192 snd_mask_none(fmt);
193 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_3LE);
194
195 return 0;
196 }
avs_create_dai_link(struct device * dev,const char * platform_name,int ssp_port,int tdm_slot,struct snd_soc_dai_link ** dai_link)197 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
198 int tdm_slot, struct snd_soc_dai_link **dai_link)
199 {
200 struct snd_soc_dai_link_component *platform;
201 struct snd_soc_dai_link *dl;
202
203 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
204 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
205 if (!dl || !platform)
206 return -ENOMEM;
207
208 platform->name = platform_name;
209
210 dl->name = devm_kasprintf(dev, GFP_KERNEL,
211 AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
212 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
213 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
214 if (!dl->name || !dl->cpus || !dl->codecs)
215 return -ENOMEM;
216
217 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
218 AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
219 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-ESSX8336:00");
220 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, ES8336_CODEC_DAI);
221 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
222 return -ENOMEM;
223
224 dl->num_cpus = 1;
225 dl->num_codecs = 1;
226 dl->platforms = platform;
227 dl->num_platforms = 1;
228 dl->id = 0;
229 dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC;
230 dl->init = avs_es8336_codec_init;
231 dl->exit = avs_es8336_codec_exit;
232 dl->be_hw_params_fixup = avs_es8336_be_fixup;
233 dl->ops = &avs_es8336_ops;
234 dl->nonatomic = 1;
235 dl->no_pcm = 1;
236 dl->dpcm_capture = 1;
237 dl->dpcm_playback = 1;
238
239 *dai_link = dl;
240
241 return 0;
242 }
243
avs_card_suspend_pre(struct snd_soc_card * card)244 static int avs_card_suspend_pre(struct snd_soc_card *card)
245 {
246 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, ES8336_CODEC_DAI);
247
248 return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
249 }
250
avs_card_resume_post(struct snd_soc_card * card)251 static int avs_card_resume_post(struct snd_soc_card *card)
252 {
253 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, ES8336_CODEC_DAI);
254 struct avs_card_drvdata *data = snd_soc_card_get_drvdata(card);
255
256 return snd_soc_component_set_jack(codec_dai->component, &data->jack, NULL);
257 }
258
avs_es8336_probe(struct platform_device * pdev)259 static int avs_es8336_probe(struct platform_device *pdev)
260 {
261 struct snd_soc_dai_link *dai_link;
262 struct snd_soc_acpi_mach *mach;
263 struct avs_card_drvdata *data;
264 struct snd_soc_card *card;
265 struct device *dev = &pdev->dev;
266 const char *pname;
267 int ssp_port, tdm_slot, ret;
268
269 mach = dev_get_platdata(dev);
270 pname = mach->mach_params.platform;
271
272 ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
273 if (ret)
274 return ret;
275
276 ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link);
277 if (ret) {
278 dev_err(dev, "Failed to create dai link: %d", ret);
279 return ret;
280 }
281
282 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
283 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
284 if (!data || !card)
285 return -ENOMEM;
286
287 card->name = "avs_es8336";
288 card->dev = dev;
289 card->owner = THIS_MODULE;
290 card->suspend_pre = avs_card_suspend_pre;
291 card->resume_post = avs_card_resume_post;
292 card->dai_link = dai_link;
293 card->num_links = 1;
294 card->controls = card_controls;
295 card->num_controls = ARRAY_SIZE(card_controls);
296 card->dapm_widgets = card_widgets;
297 card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
298 card->dapm_routes = card_routes;
299 card->num_dapm_routes = ARRAY_SIZE(card_routes);
300 card->fully_routed = true;
301 snd_soc_card_set_drvdata(card, data);
302
303 ret = snd_soc_fixup_dai_links_platform_name(card, pname);
304 if (ret)
305 return ret;
306
307 return devm_snd_soc_register_card(dev, card);
308 }
309
310 static const struct platform_device_id avs_es8336_driver_ids[] = {
311 {
312 .name = "avs_es8336",
313 },
314 {},
315 };
316 MODULE_DEVICE_TABLE(platform, avs_es8336_driver_ids);
317
318 static struct platform_driver avs_es8336_driver = {
319 .probe = avs_es8336_probe,
320 .driver = {
321 .name = "avs_es8336",
322 .pm = &snd_soc_pm_ops,
323 },
324 .id_table = avs_es8336_driver_ids,
325 };
326
327 module_platform_driver(avs_es8336_driver);
328
329 MODULE_DESCRIPTION("Intel es8336 machine driver");
330 MODULE_LICENSE("GPL");
331