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;
45static struct snd_soc_jack_pin cz_jack_pins[] = {
46	{
47		.pin = "Headphones",
48		.mask = SND_JACK_HEADPHONE,
49	},
50	{
51		.pin = "Headset Mic",
52		.mask = SND_JACK_MICROPHONE,
53	},
54};
55
56static int cz_aif1_hw_params(struct snd_pcm_substream *substream,
57			     struct snd_pcm_hw_params *params)
58{
59	int ret = 0;
60	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
61	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
62
63	ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK,
64				  CZ_PLAT_CLK, params_rate(params) * 512);
65	if (ret < 0) {
66		dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
67		return ret;
68	}
69
70	ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1,
71				params_rate(params) * 512, SND_SOC_CLOCK_OUT);
72	if (ret < 0) {
73		dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
74		return ret;
75	}
76
77	return ret;
78}
79
80static int cz_init(struct snd_soc_pcm_runtime *rtd)
81{
82	int ret;
83	struct snd_soc_card *card;
84	struct snd_soc_component *codec;
85
86	codec = snd_soc_rtd_to_codec(rtd, 0)->component;
87	card = rtd->card;
88
89	ret = snd_soc_card_jack_new_pins(card, "Headset Jack",
90					 SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
91					 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
92					 SND_JACK_BTN_2 | SND_JACK_BTN_3,
93					 &cz_jack,
94					 cz_jack_pins,
95					 ARRAY_SIZE(cz_jack_pins));
96	if (ret) {
97		dev_err(card->dev, "HP jack creation failed %d\n", ret);
98		return ret;
99	}
100
101	rt5645_set_jack_detect(codec, &cz_jack, &cz_jack, &cz_jack);
102
103	return 0;
104}
105
106static const struct snd_soc_ops cz_aif1_ops = {
107	.hw_params = cz_aif1_hw_params,
108};
109
110SND_SOC_DAILINK_DEF(designware1,
111	DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.1.auto")));
112SND_SOC_DAILINK_DEF(designware2,
113	DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.2.auto")));
114
115SND_SOC_DAILINK_DEF(codec,
116	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5650:00", "rt5645-aif1")));
117
118SND_SOC_DAILINK_DEF(platform,
119	DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_audio_dma.0.auto")));
120
121static struct snd_soc_dai_link cz_dai_rt5650[] = {
122	{
123		.name = "amd-rt5645-play",
124		.stream_name = "RT5645_AIF1",
125		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
126				| SND_SOC_DAIFMT_CBP_CFP,
127		.init = cz_init,
128		.ops = &cz_aif1_ops,
129		SND_SOC_DAILINK_REG(designware1, codec, platform),
130	},
131	{
132		.name = "amd-rt5645-cap",
133		.stream_name = "RT5645_AIF1",
134		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
135				| SND_SOC_DAIFMT_CBP_CFP,
136		.ops = &cz_aif1_ops,
137		SND_SOC_DAILINK_REG(designware2, codec, platform),
138	},
139};
140
141static const struct snd_soc_dapm_widget cz_widgets[] = {
142	SND_SOC_DAPM_HP("Headphones", NULL),
143	SND_SOC_DAPM_SPK("Speakers", NULL),
144	SND_SOC_DAPM_MIC("Headset Mic", NULL),
145	SND_SOC_DAPM_MIC("Int Mic", NULL),
146};
147
148static const struct snd_soc_dapm_route cz_audio_route[] = {
149	{"Headphones", NULL, "HPOL"},
150	{"Headphones", NULL, "HPOR"},
151	{"RECMIXL", NULL, "Headset Mic"},
152	{"RECMIXR", NULL, "Headset Mic"},
153	{"Speakers", NULL, "SPOL"},
154	{"Speakers", NULL, "SPOR"},
155	{"DMIC L2", NULL, "Int Mic"},
156	{"DMIC R2", NULL, "Int Mic"},
157};
158
159static const struct snd_kcontrol_new cz_mc_controls[] = {
160	SOC_DAPM_PIN_SWITCH("Headphones"),
161	SOC_DAPM_PIN_SWITCH("Speakers"),
162	SOC_DAPM_PIN_SWITCH("Headset Mic"),
163	SOC_DAPM_PIN_SWITCH("Int Mic"),
164};
165
166static struct snd_soc_card cz_card = {
167	.name = "acprt5650",
168	.owner = THIS_MODULE,
169	.dai_link = cz_dai_rt5650,
170	.num_links = ARRAY_SIZE(cz_dai_rt5650),
171	.dapm_widgets = cz_widgets,
172	.num_dapm_widgets = ARRAY_SIZE(cz_widgets),
173	.dapm_routes = cz_audio_route,
174	.num_dapm_routes = ARRAY_SIZE(cz_audio_route),
175	.controls = cz_mc_controls,
176	.num_controls = ARRAY_SIZE(cz_mc_controls),
177};
178
179static int cz_probe(struct platform_device *pdev)
180{
181	int ret;
182	struct snd_soc_card *card;
183
184	card = &cz_card;
185	cz_card.dev = &pdev->dev;
186	platform_set_drvdata(pdev, card);
187	ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
188	if (ret) {
189		dev_err(&pdev->dev,
190				"devm_snd_soc_register_card(%s) failed: %d\n",
191				cz_card.name, ret);
192		return ret;
193	}
194	return 0;
195}
196
197#ifdef CONFIG_ACPI
198static const struct acpi_device_id cz_audio_acpi_match[] = {
199	{ "AMDI1002", 0 },
200	{},
201};
202MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);
203#endif
204
205static struct platform_driver cz_pcm_driver = {
206	.driver = {
207		.name = "cz-rt5645",
208		.acpi_match_table = ACPI_PTR(cz_audio_acpi_match),
209		.pm = &snd_soc_pm_ops,
210	},
211	.probe = cz_probe,
212};
213
214module_platform_driver(cz_pcm_driver);
215
216MODULE_AUTHOR("akshu.agrawal@amd.com");
217MODULE_DESCRIPTION("cz-rt5645 audio support");
218MODULE_LICENSE("GPL v2");
219