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 */
32static unsigned long avs_rt5682_quirk = AVS_RT5682_MCLK_EN | AVS_RT5682_SSP_CODEC(0);
33
34static 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
40static 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
63static const struct snd_kcontrol_new card_controls[] = {
64	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
65	SOC_DAPM_PIN_SWITCH("Headset Mic"),
66};
67
68static 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
73static 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
82static struct snd_soc_jack_pin card_jack_pins[] = {
83	{
84		.pin = "Headphone Jack",
85		.mask = SND_JACK_HEADPHONE,
86	},
87	{
88		.pin = "Headset Mic",
89		.mask = SND_JACK_MICROPHONE,
90	},
91};
92
93static int avs_rt5682_codec_init(struct snd_soc_pcm_runtime *runtime)
94{
95	struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component;
96	struct snd_soc_card *card = runtime->card;
97	struct snd_soc_jack_pin *pins;
98	struct snd_soc_jack *jack;
99	int num_pins, ret;
100
101	jack = snd_soc_card_get_drvdata(card);
102	num_pins = ARRAY_SIZE(card_jack_pins);
103
104	pins = devm_kmemdup(card->dev, card_jack_pins, sizeof(*pins) * num_pins, GFP_KERNEL);
105	if (!pins)
106		return -ENOMEM;
107
108	/* Need to enable ASRC function for 24MHz mclk rate */
109	if ((avs_rt5682_quirk & AVS_RT5682_MCLK_EN) &&
110	    (avs_rt5682_quirk & AVS_RT5682_MCLK_24MHZ)) {
111		rt5682_sel_asrc_clk_src(component, RT5682_DA_STEREO1_FILTER |
112					RT5682_AD_STEREO1_FILTER, RT5682_CLK_SEL_I2S1_ASRC);
113	}
114
115
116	ret = snd_soc_card_jack_new_pins(card, "Headset Jack", SND_JACK_HEADSET | SND_JACK_BTN_0 |
117					 SND_JACK_BTN_1 | SND_JACK_BTN_2 | SND_JACK_BTN_3, jack,
118					 pins, num_pins);
119	if (ret) {
120		dev_err(card->dev, "Headset Jack creation failed: %d\n", ret);
121		return ret;
122	}
123
124	snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
125	snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
126	snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
127	snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
128
129	ret = snd_soc_component_set_jack(component, jack, NULL);
130	if (ret) {
131		dev_err(card->dev, "Headset Jack call-back failed: %d\n", ret);
132		return ret;
133	}
134
135	return 0;
136};
137
138static void avs_rt5682_codec_exit(struct snd_soc_pcm_runtime *rtd)
139{
140	snd_soc_component_set_jack(asoc_rtd_to_codec(rtd, 0)->component, NULL, NULL);
141}
142
143static int
144avs_rt5682_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
145{
146	struct snd_soc_pcm_runtime *runtime = asoc_substream_to_rtd(substream);
147	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0);
148	int pll_source, freq_in, freq_out;
149	int ret;
150
151	if (avs_rt5682_quirk & AVS_RT5682_MCLK_EN) {
152		pll_source = RT5682_PLL1_S_MCLK;
153		if (avs_rt5682_quirk & AVS_RT5682_MCLK_24MHZ)
154			freq_in = 24000000;
155		else
156			freq_in = 19200000;
157	} else {
158		pll_source = RT5682_PLL1_S_BCLK1;
159		freq_in = params_rate(params) * 50;
160	}
161
162	freq_out = params_rate(params) * 512;
163
164	ret = snd_soc_dai_set_pll(codec_dai, RT5682_PLL1, pll_source, freq_in, freq_out);
165	if (ret < 0)
166		dev_err(runtime->dev, "Set PLL failed: %d\n", ret);
167
168	ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL1, freq_out, SND_SOC_CLOCK_IN);
169	if (ret < 0)
170		dev_err(runtime->dev, "Set sysclk failed: %d\n", ret);
171
172	/* slot_width should be equal or larger than data length. */
173	ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x0, 0x0, 2, params_width(params));
174	if (ret < 0)
175		dev_err(runtime->dev, "Set TDM slot failed: %d\n", ret);
176
177	return ret;
178}
179
180static const struct snd_soc_ops avs_rt5682_ops = {
181	.hw_params = avs_rt5682_hw_params,
182};
183
184static int
185avs_rt5682_be_fixup(struct snd_soc_pcm_runtime *runtime, struct snd_pcm_hw_params *params)
186{
187	struct snd_interval *rate, *channels;
188	struct snd_mask *fmt;
189
190	rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
191	channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
192	fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
193
194	/* The ADSP will convert the FE rate to 48k, stereo */
195	rate->min = rate->max = 48000;
196	channels->min = channels->max = 2;
197
198	/* set SSPN to 24 bit */
199	snd_mask_none(fmt);
200	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
201
202	return 0;
203}
204
205static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
206			       struct snd_soc_dai_link **dai_link)
207{
208	struct snd_soc_dai_link_component *platform;
209	struct snd_soc_dai_link *dl;
210
211	dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
212	platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
213	if (!dl || !platform)
214		return -ENOMEM;
215
216	platform->name = platform_name;
217
218	dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port);
219	dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
220	dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
221	if (!dl->name || !dl->cpus || !dl->codecs)
222		return -ENOMEM;
223
224	dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port);
225	dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-10EC5682:00");
226	dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, AVS_RT5682_CODEC_DAI_NAME);
227	if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
228		return -ENOMEM;
229
230	dl->num_cpus = 1;
231	dl->num_codecs = 1;
232	dl->platforms = platform;
233	dl->num_platforms = 1;
234	dl->id = 0;
235	dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC;
236	dl->init = avs_rt5682_codec_init;
237	dl->exit = avs_rt5682_codec_exit;
238	dl->be_hw_params_fixup = avs_rt5682_be_fixup;
239	dl->ops = &avs_rt5682_ops;
240	dl->nonatomic = 1;
241	dl->no_pcm = 1;
242	dl->dpcm_capture = 1;
243	dl->dpcm_playback = 1;
244
245	*dai_link = dl;
246
247	return 0;
248}
249
250static int avs_card_suspend_pre(struct snd_soc_card *card)
251{
252	struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, AVS_RT5682_CODEC_DAI_NAME);
253
254	return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
255}
256
257static int avs_card_resume_post(struct snd_soc_card *card)
258{
259	struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, AVS_RT5682_CODEC_DAI_NAME);
260	struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card);
261
262	return snd_soc_component_set_jack(codec_dai->component, jack, NULL);
263}
264
265static int avs_rt5682_probe(struct platform_device *pdev)
266{
267	struct snd_soc_dai_link *dai_link;
268	struct snd_soc_acpi_mach *mach;
269	struct snd_soc_card *card;
270	struct snd_soc_jack *jack;
271	struct device *dev = &pdev->dev;
272	const char *pname;
273	int ssp_port, ret;
274
275	if (pdev->id_entry && pdev->id_entry->driver_data)
276		avs_rt5682_quirk = (unsigned long)pdev->id_entry->driver_data;
277
278	dmi_check_system(avs_rt5682_quirk_table);
279	dev_dbg(dev, "avs_rt5682_quirk = %lx\n", avs_rt5682_quirk);
280
281	mach = dev_get_platdata(dev);
282	pname = mach->mach_params.platform;
283	ssp_port = __ffs(mach->mach_params.i2s_link_mask);
284
285	ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link);
286	if (ret) {
287		dev_err(dev, "Failed to create dai link: %d", ret);
288		return ret;
289	}
290
291	jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);
292	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
293	if (!jack || !card)
294		return -ENOMEM;
295
296	card->name = "avs_rt5682";
297	card->dev = dev;
298	card->owner = THIS_MODULE;
299	card->suspend_pre = avs_card_suspend_pre;
300	card->resume_post = avs_card_resume_post;
301	card->dai_link = dai_link;
302	card->num_links = 1;
303	card->controls = card_controls;
304	card->num_controls = ARRAY_SIZE(card_controls);
305	card->dapm_widgets = card_widgets;
306	card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
307	card->dapm_routes = card_base_routes;
308	card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
309	card->fully_routed = true;
310	snd_soc_card_set_drvdata(card, jack);
311
312	ret = snd_soc_fixup_dai_links_platform_name(card, pname);
313	if (ret)
314		return ret;
315
316	return devm_snd_soc_register_card(dev, card);
317}
318
319static struct platform_driver avs_rt5682_driver = {
320	.probe = avs_rt5682_probe,
321	.driver = {
322		.name = "avs_rt5682",
323		.pm = &snd_soc_pm_ops,
324	},
325};
326
327module_platform_driver(avs_rt5682_driver)
328
329MODULE_AUTHOR("Cezary Rojewski <cezary.rojewski@intel.com>");
330MODULE_LICENSE("GPL");
331MODULE_ALIAS("platform:avs_rt5682");
332