1/*
2 * Machine driver for AMD ACP Audio engine using Realtek RT5645 codec
3 *
4 * Copyright 2017 Advanced Micro Devices, Inc.
5 *
6 * This file is modified from rt288 machine driver
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
22 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
23 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
24 * OTHER DEALINGS IN THE SOFTWARE.
25 *
26 *
27 */
28
29#include <sound/core.h>
30#include <sound/soc.h>
31#include <sound/pcm.h>
32#include <sound/pcm_params.h>
33#include <sound/soc-dapm.h>
34#include <sound/jack.h>
35#include <linux/gpio.h>
36#include <linux/module.h>
37#include <linux/i2c.h>
38#include <linux/acpi.h>
39
40#include "../codecs/rt5645.h"
41
42#define CZ_PLAT_CLK 24000000
43
44static struct snd_soc_jack cz_jack;
45
46static int cz_aif1_hw_params(struct snd_pcm_substream *substream,
47			     struct snd_pcm_hw_params *params)
48{
49	int ret = 0;
50	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
51	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
52
53	ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK,
54				  CZ_PLAT_CLK, params_rate(params) * 512);
55	if (ret < 0) {
56		dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
57		return ret;
58	}
59
60	ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1,
61				params_rate(params) * 512, SND_SOC_CLOCK_OUT);
62	if (ret < 0) {
63		dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
64		return ret;
65	}
66
67	return ret;
68}
69
70static int cz_init(struct snd_soc_pcm_runtime *rtd)
71{
72	int ret;
73	struct snd_soc_card *card;
74	struct snd_soc_component *codec;
75
76	codec = asoc_rtd_to_codec(rtd, 0)->component;
77	card = rtd->card;
78
79	ret = snd_soc_card_jack_new(card, "Headset Jack",
80				SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
81				SND_JACK_BTN_0 | SND_JACK_BTN_1 |
82				SND_JACK_BTN_2 | SND_JACK_BTN_3,
83				&cz_jack, NULL, 0);
84	if (ret) {
85		dev_err(card->dev, "HP jack creation failed %d\n", ret);
86		return ret;
87	}
88
89	rt5645_set_jack_detect(codec, &cz_jack, &cz_jack, &cz_jack);
90
91	return 0;
92}
93
94static struct snd_soc_ops cz_aif1_ops = {
95	.hw_params = cz_aif1_hw_params,
96};
97
98SND_SOC_DAILINK_DEF(designware1,
99	DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.1.auto")));
100SND_SOC_DAILINK_DEF(designware2,
101	DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.2.auto")));
102
103SND_SOC_DAILINK_DEF(codec,
104	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5650:00", "rt5645-aif1")));
105
106SND_SOC_DAILINK_DEF(platform,
107	DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_audio_dma.0.auto")));
108
109static struct snd_soc_dai_link cz_dai_rt5650[] = {
110	{
111		.name = "amd-rt5645-play",
112		.stream_name = "RT5645_AIF1",
113		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
114				| SND_SOC_DAIFMT_CBM_CFM,
115		.init = cz_init,
116		.ops = &cz_aif1_ops,
117		SND_SOC_DAILINK_REG(designware1, codec, platform),
118	},
119	{
120		.name = "amd-rt5645-cap",
121		.stream_name = "RT5645_AIF1",
122		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
123				| SND_SOC_DAIFMT_CBM_CFM,
124		.ops = &cz_aif1_ops,
125		SND_SOC_DAILINK_REG(designware2, codec, platform),
126	},
127};
128
129static const struct snd_soc_dapm_widget cz_widgets[] = {
130	SND_SOC_DAPM_HP("Headphones", NULL),
131	SND_SOC_DAPM_SPK("Speakers", NULL),
132	SND_SOC_DAPM_MIC("Headset Mic", NULL),
133	SND_SOC_DAPM_MIC("Int Mic", NULL),
134};
135
136static const struct snd_soc_dapm_route cz_audio_route[] = {
137	{"Headphones", NULL, "HPOL"},
138	{"Headphones", NULL, "HPOR"},
139	{"RECMIXL", NULL, "Headset Mic"},
140	{"RECMIXR", NULL, "Headset Mic"},
141	{"Speakers", NULL, "SPOL"},
142	{"Speakers", NULL, "SPOR"},
143	{"DMIC L2", NULL, "Int Mic"},
144	{"DMIC R2", NULL, "Int Mic"},
145};
146
147static const struct snd_kcontrol_new cz_mc_controls[] = {
148	SOC_DAPM_PIN_SWITCH("Headphones"),
149	SOC_DAPM_PIN_SWITCH("Speakers"),
150	SOC_DAPM_PIN_SWITCH("Headset Mic"),
151	SOC_DAPM_PIN_SWITCH("Int Mic"),
152};
153
154static struct snd_soc_card cz_card = {
155	.name = "acprt5650",
156	.owner = THIS_MODULE,
157	.dai_link = cz_dai_rt5650,
158	.num_links = ARRAY_SIZE(cz_dai_rt5650),
159	.dapm_widgets = cz_widgets,
160	.num_dapm_widgets = ARRAY_SIZE(cz_widgets),
161	.dapm_routes = cz_audio_route,
162	.num_dapm_routes = ARRAY_SIZE(cz_audio_route),
163	.controls = cz_mc_controls,
164	.num_controls = ARRAY_SIZE(cz_mc_controls),
165};
166
167static int cz_probe(struct platform_device *pdev)
168{
169	int ret;
170	struct snd_soc_card *card;
171
172	card = &cz_card;
173	cz_card.dev = &pdev->dev;
174	platform_set_drvdata(pdev, card);
175	ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
176	if (ret) {
177		dev_err(&pdev->dev,
178				"devm_snd_soc_register_card(%s) failed: %d\n",
179				cz_card.name, ret);
180		return ret;
181	}
182	return 0;
183}
184
185#ifdef CONFIG_ACPI
186static const struct acpi_device_id cz_audio_acpi_match[] = {
187	{ "AMDI1002", 0 },
188	{},
189};
190MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);
191#endif
192
193static struct platform_driver cz_pcm_driver = {
194	.driver = {
195		.name = "cz-rt5645",
196		.acpi_match_table = ACPI_PTR(cz_audio_acpi_match),
197		.pm = &snd_soc_pm_ops,
198	},
199	.probe = cz_probe,
200};
201
202module_platform_driver(cz_pcm_driver);
203
204MODULE_AUTHOR("akshu.agrawal@amd.com");
205MODULE_DESCRIPTION("cz-rt5645 audio support");
206MODULE_LICENSE("GPL v2");
207