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#include "../utils.h"
17
18#define RT286_CODEC_DAI		"rt286-aif1"
19
20static const struct snd_kcontrol_new card_controls[] = {
21	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
22	SOC_DAPM_PIN_SWITCH("Mic Jack"),
23	SOC_DAPM_PIN_SWITCH("Speaker"),
24};
25
26static const struct snd_soc_dapm_widget card_widgets[] = {
27	SND_SOC_DAPM_HP("Headphone Jack", NULL),
28	SND_SOC_DAPM_MIC("Mic Jack", NULL),
29	SND_SOC_DAPM_SPK("Speaker", NULL),
30};
31
32static const struct snd_soc_dapm_route card_base_routes[] = {
33	/* HP jack connectors - unknown if we have jack detect */
34	{"Headphone Jack", NULL, "HPO Pin"},
35	{"MIC1", NULL, "Mic Jack"},
36
37	{"Speaker", NULL, "SPOR"},
38	{"Speaker", NULL, "SPOL"},
39};
40
41static struct snd_soc_jack_pin card_headset_pins[] = {
42	{
43		.pin = "Headphone Jack",
44		.mask = SND_JACK_HEADPHONE,
45	},
46	{
47		.pin = "Mic Jack",
48		.mask = SND_JACK_MICROPHONE,
49	},
50};
51
52static int avs_rt286_codec_init(struct snd_soc_pcm_runtime *runtime)
53{
54	struct snd_soc_card *card = runtime->card;
55	struct snd_soc_jack_pin *pins;
56	struct snd_soc_jack *jack;
57	int num_pins, ret;
58
59	jack = snd_soc_card_get_drvdata(card);
60	num_pins = ARRAY_SIZE(card_headset_pins);
61
62	pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL);
63	if (!pins)
64		return -ENOMEM;
65
66	ret = snd_soc_card_jack_new_pins(card, "Headset", SND_JACK_HEADSET | SND_JACK_BTN_0, jack,
67					 pins, num_pins);
68	if (ret)
69		return ret;
70
71	return snd_soc_component_set_jack(snd_soc_rtd_to_codec(runtime, 0)->component, jack, NULL);
72}
73
74static void avs_rt286_codec_exit(struct snd_soc_pcm_runtime *rtd)
75{
76	snd_soc_component_set_jack(snd_soc_rtd_to_codec(rtd, 0)->component, NULL, NULL);
77}
78
79static int avs_rt286_be_fixup(struct snd_soc_pcm_runtime *runtime, struct snd_pcm_hw_params *params)
80{
81	struct snd_interval *rate, *channels;
82	struct snd_mask *fmt;
83
84	rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
85	channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
86	fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
87
88	/* The ADSP will convert the FE rate to 48k, stereo */
89	rate->min = rate->max = 48000;
90	channels->min = channels->max = 2;
91
92	/* set SSP0 to 24 bit */
93	snd_mask_none(fmt);
94	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
95
96	return 0;
97}
98
99static int
100avs_rt286_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params)
101{
102	struct snd_soc_pcm_runtime *runtime = snd_soc_substream_to_rtd(substream);
103	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
104	int ret;
105
106	ret = snd_soc_dai_set_sysclk(codec_dai, RT286_SCLK_S_PLL, 24000000, SND_SOC_CLOCK_IN);
107	if (ret < 0)
108		dev_err(runtime->dev, "Set codec sysclk failed: %d\n", ret);
109
110	return ret;
111}
112
113static const struct snd_soc_ops avs_rt286_ops = {
114	.hw_params = avs_rt286_hw_params,
115};
116
117static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
118			       int tdm_slot, struct snd_soc_dai_link **dai_link)
119{
120	struct snd_soc_dai_link_component *platform;
121	struct snd_soc_dai_link *dl;
122
123	dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
124	platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
125	if (!dl || !platform)
126		return -ENOMEM;
127
128	platform->name = platform_name;
129
130	dl->name = devm_kasprintf(dev, GFP_KERNEL,
131				  AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
132	dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
133	dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
134	if (!dl->name || !dl->cpus || !dl->codecs)
135		return -ENOMEM;
136
137	dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
138					    AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
139	dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343A:00");
140	dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, RT286_CODEC_DAI);
141	if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
142		return -ENOMEM;
143
144	dl->num_cpus = 1;
145	dl->num_codecs = 1;
146	dl->platforms = platform;
147	dl->num_platforms = 1;
148	dl->id = 0;
149	dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS;
150	dl->init = avs_rt286_codec_init;
151	dl->exit = avs_rt286_codec_exit;
152	dl->be_hw_params_fixup = avs_rt286_be_fixup;
153	dl->ops = &avs_rt286_ops;
154	dl->nonatomic = 1;
155	dl->no_pcm = 1;
156	dl->dpcm_capture = 1;
157	dl->dpcm_playback = 1;
158
159	*dai_link = dl;
160
161	return 0;
162}
163
164static int avs_card_suspend_pre(struct snd_soc_card *card)
165{
166	struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT286_CODEC_DAI);
167
168	return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
169}
170
171static int avs_card_resume_post(struct snd_soc_card *card)
172{
173	struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT286_CODEC_DAI);
174	struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card);
175
176	return snd_soc_component_set_jack(codec_dai->component, jack, NULL);
177}
178
179static int avs_rt286_probe(struct platform_device *pdev)
180{
181	struct snd_soc_dai_link *dai_link;
182	struct snd_soc_acpi_mach *mach;
183	struct snd_soc_card *card;
184	struct snd_soc_jack *jack;
185	struct device *dev = &pdev->dev;
186	const char *pname;
187	int ssp_port, tdm_slot, ret;
188
189	mach = dev_get_platdata(dev);
190	pname = mach->mach_params.platform;
191
192	ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
193	if (ret)
194		return ret;
195
196	ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link);
197
198	if (ret) {
199		dev_err(dev, "Failed to create dai link: %d", ret);
200		return ret;
201	}
202
203	jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL);
204	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
205	if (!jack || !card)
206		return -ENOMEM;
207
208	card->name = "avs_rt286";
209	card->dev = dev;
210	card->owner = THIS_MODULE;
211	card->suspend_pre = avs_card_suspend_pre;
212	card->resume_post = avs_card_resume_post;
213	card->dai_link = dai_link;
214	card->num_links = 1;
215	card->controls = card_controls;
216	card->num_controls = ARRAY_SIZE(card_controls);
217	card->dapm_widgets = card_widgets;
218	card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
219	card->dapm_routes = card_base_routes;
220	card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
221	card->fully_routed = true;
222	snd_soc_card_set_drvdata(card, jack);
223
224	ret = snd_soc_fixup_dai_links_platform_name(card, pname);
225	if (ret)
226		return ret;
227
228	return devm_snd_soc_register_card(dev, card);
229}
230
231static const struct platform_device_id avs_rt286_driver_ids[] = {
232	{
233		.name = "avs_rt286",
234	},
235	{},
236};
237MODULE_DEVICE_TABLE(platform, avs_rt286_driver_ids);
238
239static struct platform_driver avs_rt286_driver = {
240	.probe = avs_rt286_probe,
241	.driver = {
242		.name = "avs_rt286",
243		.pm = &snd_soc_pm_ops,
244	},
245	.id_table = avs_rt286_driver_ids,
246};
247
248module_platform_driver(avs_rt286_driver);
249
250MODULE_DESCRIPTION("Intel rt286 machine driver");
251MODULE_LICENSE("GPL");
252