1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Rockchip machine ASoC driver for boards using a RT5645/RT5650 CODEC.
4 *
5 * Copyright (c) 2015, ROCKCHIP CORPORATION.  All rights reserved.
6 */
7
8#include <linux/module.h>
9#include <linux/platform_device.h>
10#include <linux/slab.h>
11#include <linux/gpio.h>
12#include <linux/of_gpio.h>
13#include <linux/delay.h>
14#include <sound/core.h>
15#include <sound/jack.h>
16#include <sound/pcm.h>
17#include <sound/pcm_params.h>
18#include <sound/soc.h>
19#include "rockchip_i2s.h"
20#include "../codecs/rt5645.h"
21
22#define DRV_NAME "rockchip-snd-rt5645"
23
24static struct snd_soc_jack headset_jack;
25
26static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
27	SND_SOC_DAPM_HP("Headphones", NULL),
28	SND_SOC_DAPM_SPK("Speakers", NULL),
29	SND_SOC_DAPM_MIC("Headset Mic", NULL),
30	SND_SOC_DAPM_MIC("Int Mic", NULL),
31};
32
33static const struct snd_soc_dapm_route rk_audio_map[] = {
34	/* Input Lines */
35	{"DMIC L2", NULL, "Int Mic"},
36	{"DMIC R2", NULL, "Int Mic"},
37	{"RECMIXL", NULL, "Headset Mic"},
38	{"RECMIXR", NULL, "Headset Mic"},
39
40	/* Output Lines */
41	{"Headphones", NULL, "HPOR"},
42	{"Headphones", NULL, "HPOL"},
43	{"Speakers", NULL, "SPOL"},
44	{"Speakers", NULL, "SPOR"},
45};
46
47static const struct snd_kcontrol_new rk_mc_controls[] = {
48	SOC_DAPM_PIN_SWITCH("Headphones"),
49	SOC_DAPM_PIN_SWITCH("Speakers"),
50	SOC_DAPM_PIN_SWITCH("Headset Mic"),
51	SOC_DAPM_PIN_SWITCH("Int Mic"),
52};
53
54static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
55			     struct snd_pcm_hw_params *params)
56{
57	int ret = 0;
58	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
59	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
60	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
61	int mclk;
62
63	switch (params_rate(params)) {
64	case 8000:
65	case 16000:
66	case 24000:
67	case 32000:
68	case 48000:
69	case 64000:
70	case 96000:
71		mclk = 12288000;
72		break;
73	case 11025:
74	case 22050:
75	case 44100:
76	case 88200:
77		mclk = 11289600;
78		break;
79	default:
80		return -EINVAL;
81	}
82
83	ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
84				     SND_SOC_CLOCK_OUT);
85	if (ret < 0) {
86		dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
87		return ret;
88	}
89
90	ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
91				     SND_SOC_CLOCK_IN);
92	if (ret < 0) {
93		dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
94		return ret;
95	}
96
97	return ret;
98}
99
100static int rk_init(struct snd_soc_pcm_runtime *runtime)
101{
102	struct snd_soc_card *card = runtime->card;
103	int ret;
104
105	/* Enable Headset and 4 Buttons Jack detection */
106	ret = snd_soc_card_jack_new(card, "Headset Jack",
107				    SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
108				    SND_JACK_BTN_0 | SND_JACK_BTN_1 |
109				    SND_JACK_BTN_2 | SND_JACK_BTN_3,
110				    &headset_jack, NULL, 0);
111	if (ret) {
112		dev_err(card->dev, "New Headset Jack failed! (%d)\n", ret);
113		return ret;
114	}
115
116	return rt5645_set_jack_detect(asoc_rtd_to_codec(runtime, 0)->component,
117				     &headset_jack,
118				     &headset_jack,
119				     &headset_jack);
120}
121
122static const struct snd_soc_ops rk_aif1_ops = {
123	.hw_params = rk_aif1_hw_params,
124};
125
126SND_SOC_DAILINK_DEFS(pcm,
127	DAILINK_COMP_ARRAY(COMP_EMPTY()),
128	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1")),
129	DAILINK_COMP_ARRAY(COMP_EMPTY()));
130
131static struct snd_soc_dai_link rk_dailink = {
132	.name = "rt5645",
133	.stream_name = "rt5645 PCM",
134	.init = rk_init,
135	.ops = &rk_aif1_ops,
136	/* set rt5645 as slave */
137	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
138		SND_SOC_DAIFMT_CBS_CFS,
139	SND_SOC_DAILINK_REG(pcm),
140};
141
142static struct snd_soc_card snd_soc_card_rk = {
143	.name = "I2S-RT5650",
144	.owner = THIS_MODULE,
145	.dai_link = &rk_dailink,
146	.num_links = 1,
147	.dapm_widgets = rk_dapm_widgets,
148	.num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
149	.dapm_routes = rk_audio_map,
150	.num_dapm_routes = ARRAY_SIZE(rk_audio_map),
151	.controls = rk_mc_controls,
152	.num_controls = ARRAY_SIZE(rk_mc_controls),
153};
154
155static int snd_rk_mc_probe(struct platform_device *pdev)
156{
157	int ret = 0;
158	struct snd_soc_card *card = &snd_soc_card_rk;
159	struct device_node *np = pdev->dev.of_node;
160
161	/* register the soc card */
162	card->dev = &pdev->dev;
163
164	rk_dailink.codecs->of_node = of_parse_phandle(np,
165			"rockchip,audio-codec", 0);
166	if (!rk_dailink.codecs->of_node) {
167		dev_err(&pdev->dev,
168			"Property 'rockchip,audio-codec' missing or invalid\n");
169		return -EINVAL;
170	}
171
172	rk_dailink.cpus->of_node = of_parse_phandle(np,
173			"rockchip,i2s-controller", 0);
174	if (!rk_dailink.cpus->of_node) {
175		dev_err(&pdev->dev,
176			"Property 'rockchip,i2s-controller' missing or invalid\n");
177		ret = -EINVAL;
178		goto put_codec_of_node;
179	}
180
181	rk_dailink.platforms->of_node = rk_dailink.cpus->of_node;
182
183	ret = snd_soc_of_parse_card_name(card, "rockchip,model");
184	if (ret) {
185		dev_err(&pdev->dev,
186			"Soc parse card name failed %d\n", ret);
187		goto put_cpu_of_node;
188	}
189
190	ret = devm_snd_soc_register_card(&pdev->dev, card);
191	if (ret) {
192		dev_err(&pdev->dev,
193			"Soc register card failed %d\n", ret);
194		goto put_cpu_of_node;
195	}
196
197	return ret;
198
199put_cpu_of_node:
200	of_node_put(rk_dailink.cpus->of_node);
201	rk_dailink.cpus->of_node = NULL;
202put_codec_of_node:
203	of_node_put(rk_dailink.codecs->of_node);
204	rk_dailink.codecs->of_node = NULL;
205
206	return ret;
207}
208
209static int snd_rk_mc_remove(struct platform_device *pdev)
210{
211	of_node_put(rk_dailink.cpus->of_node);
212	rk_dailink.cpus->of_node = NULL;
213	of_node_put(rk_dailink.codecs->of_node);
214	rk_dailink.codecs->of_node = NULL;
215
216	return 0;
217}
218
219static const struct of_device_id rockchip_rt5645_of_match[] = {
220	{ .compatible = "rockchip,rockchip-audio-rt5645", },
221	{},
222};
223
224MODULE_DEVICE_TABLE(of, rockchip_rt5645_of_match);
225
226static struct platform_driver snd_rk_mc_driver = {
227	.probe = snd_rk_mc_probe,
228	.remove = snd_rk_mc_remove,
229	.driver = {
230		.name = DRV_NAME,
231		.pm = &snd_soc_pm_ops,
232		.of_match_table = rockchip_rt5645_of_match,
233	},
234};
235
236module_platform_driver(snd_rk_mc_driver);
237
238MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
239MODULE_DESCRIPTION("Rockchip rt5645 machine ASoC driver");
240MODULE_LICENSE("GPL v2");
241MODULE_ALIAS("platform:" DRV_NAME);
242