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 <linux/platform_device.h>
11#include <sound/core.h>
12#include <sound/pcm.h>
13#include <sound/pcm_params.h>
14#include <sound/soc.h>
15#include <sound/soc-acpi.h>
16#include "../../../codecs/nau8825.h"
17
18#define SKL_SSM_CODEC_DAI	"ssm4567-hifi"
19
20static struct snd_soc_codec_conf card_codec_conf[] = {
21	{
22		.dlc = COMP_CODEC_CONF("i2c-INT343B:00"),
23		.name_prefix = "Left",
24	},
25	{
26		.dlc = COMP_CODEC_CONF("i2c-INT343B:01"),
27		.name_prefix = "Right",
28	},
29};
30
31static const struct snd_kcontrol_new card_controls[] = {
32	SOC_DAPM_PIN_SWITCH("Left Speaker"),
33	SOC_DAPM_PIN_SWITCH("Right Speaker"),
34};
35
36static const struct snd_soc_dapm_widget card_widgets[] = {
37	SND_SOC_DAPM_SPK("Left Speaker", NULL),
38	SND_SOC_DAPM_SPK("Right Speaker", NULL),
39	SND_SOC_DAPM_SPK("DP1", NULL),
40	SND_SOC_DAPM_SPK("DP2", NULL),
41};
42
43static const struct snd_soc_dapm_route card_base_routes[] = {
44	{"Left Speaker", NULL, "Left OUT"},
45	{"Right Speaker", NULL, "Right OUT"},
46};
47
48static int avs_ssm4567_codec_init(struct snd_soc_pcm_runtime *runtime)
49{
50	int ret;
51
52	/* Slot 1 for left */
53	ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(runtime, 0), 0x01, 0x01, 2, 48);
54	if (ret < 0)
55		return ret;
56
57	/* Slot 2 for right */
58	ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(runtime, 1), 0x02, 0x02, 2, 48);
59	if (ret < 0)
60		return ret;
61
62	return 0;
63}
64
65static int
66avs_ssm4567_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params)
67{
68	struct snd_interval *rate, *channels;
69	struct snd_mask *fmt;
70
71	rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
72	channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
73	fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
74
75	/* The ADSP will convert the FE rate to 48k, stereo */
76	rate->min = rate->max = 48000;
77	channels->min = channels->max = 2;
78
79	/* set SSP0 to 24 bit */
80	snd_mask_none(fmt);
81	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
82	return 0;
83}
84
85static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
86			       struct snd_soc_dai_link **dai_link)
87{
88	struct snd_soc_dai_link_component *platform;
89	struct snd_soc_dai_link *dl;
90
91	dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
92	platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
93	if (!dl || !platform)
94		return -ENOMEM;
95
96	platform->name = platform_name;
97
98	dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port);
99	dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
100	dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs) * 2, GFP_KERNEL);
101	if (!dl->name || !dl->cpus || !dl->codecs)
102		return -ENOMEM;
103
104	dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port);
105	dl->codecs[0].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:00");
106	dl->codecs[0].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi");
107	dl->codecs[1].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:01");
108	dl->codecs[1].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi");
109	if (!dl->cpus->dai_name || !dl->codecs[0].name || !dl->codecs[0].dai_name ||
110	    !dl->codecs[1].name || !dl->codecs[1].dai_name)
111		return -ENOMEM;
112
113	dl->num_cpus = 1;
114	dl->num_codecs = 2;
115	dl->platforms = platform;
116	dl->num_platforms = 1;
117	dl->id = 0;
118	dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBS_CFS;
119	dl->init = avs_ssm4567_codec_init;
120	dl->be_hw_params_fixup = avs_ssm4567_be_fixup;
121	dl->nonatomic = 1;
122	dl->no_pcm = 1;
123	dl->dpcm_capture = 1;
124	dl->dpcm_playback = 1;
125	dl->ignore_pmdown_time = 1;
126
127	*dai_link = dl;
128
129	return 0;
130}
131
132static int avs_ssm4567_probe(struct platform_device *pdev)
133{
134	struct snd_soc_dai_link *dai_link;
135	struct snd_soc_acpi_mach *mach;
136	struct snd_soc_card *card;
137	struct device *dev = &pdev->dev;
138	const char *pname;
139	int ssp_port, ret;
140
141	mach = dev_get_platdata(dev);
142	pname = mach->mach_params.platform;
143	ssp_port = __ffs(mach->mach_params.i2s_link_mask);
144
145	ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link);
146	if (ret) {
147		dev_err(dev, "Failed to create dai link: %d", ret);
148		return ret;
149	}
150
151	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
152	if (!card)
153		return -ENOMEM;
154
155	card->name = "avs_ssm4567-adi";
156	card->dev = dev;
157	card->owner = THIS_MODULE;
158	card->dai_link = dai_link;
159	card->num_links = 1;
160	card->codec_conf = card_codec_conf;
161	card->num_configs = ARRAY_SIZE(card_codec_conf);
162	card->controls = card_controls;
163	card->num_controls = ARRAY_SIZE(card_controls);
164	card->dapm_widgets = card_widgets;
165	card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
166	card->dapm_routes = card_base_routes;
167	card->num_dapm_routes = ARRAY_SIZE(card_base_routes);
168	card->fully_routed = true;
169	card->disable_route_checks = true;
170
171	ret = snd_soc_fixup_dai_links_platform_name(card, pname);
172	if (ret)
173		return ret;
174
175	return devm_snd_soc_register_card(dev, card);
176}
177
178static struct platform_driver avs_ssm4567_driver = {
179	.probe = avs_ssm4567_probe,
180	.driver = {
181		.name = "avs_ssm4567",
182		.pm = &snd_soc_pm_ops,
183	},
184};
185
186module_platform_driver(avs_ssm4567_driver)
187
188MODULE_LICENSE("GPL");
189MODULE_ALIAS("platform:avs_ssm4567");
190