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(dai: codec_dai, pll_id: 0, source: RT5645_PLL1_S_MCLK,
64 CZ_PLAT_CLK, freq_out: params_rate(p: 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(dai: codec_dai, clk_id: RT5645_SCLK_S_PLL1,
71 freq: params_rate(p: 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, id: "Headset Jack",
90 type: 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 jack: &cz_jack,
94 pins: 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(component: codec, hp_jack: &cz_jack, mic_jack: &cz_jack, btn_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")));
112SND_SOC_DAILINK_DEF(designware2,
113 DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.2")));
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")));
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, data: card);
187 ret = devm_snd_soc_register_card(dev: &pdev->dev, card: &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

source code of linux/sound/soc/amd/acp-rt5645.c