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;
25static struct snd_soc_jack_pin headset_jack_pins[] = {
26	{
27		.pin = "Headphones",
28		.mask = SND_JACK_HEADPHONE,
29	},
30	{
31		.pin = "Headset Mic",
32		.mask = SND_JACK_MICROPHONE,
33	},
34};
35
36static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
37	SND_SOC_DAPM_HP("Headphones", NULL),
38	SND_SOC_DAPM_SPK("Speakers", NULL),
39	SND_SOC_DAPM_MIC("Headset Mic", NULL),
40	SND_SOC_DAPM_MIC("Int Mic", NULL),
41};
42
43static const struct snd_soc_dapm_route rk_audio_map[] = {
44	/* Input Lines */
45	{"DMIC L2", NULL, "Int Mic"},
46	{"DMIC R2", NULL, "Int Mic"},
47	{"RECMIXL", NULL, "Headset Mic"},
48	{"RECMIXR", NULL, "Headset Mic"},
49
50	/* Output Lines */
51	{"Headphones", NULL, "HPOR"},
52	{"Headphones", NULL, "HPOL"},
53	{"Speakers", NULL, "SPOL"},
54	{"Speakers", NULL, "SPOR"},
55};
56
57static const struct snd_kcontrol_new rk_mc_controls[] = {
58	SOC_DAPM_PIN_SWITCH("Headphones"),
59	SOC_DAPM_PIN_SWITCH("Speakers"),
60	SOC_DAPM_PIN_SWITCH("Headset Mic"),
61	SOC_DAPM_PIN_SWITCH("Int Mic"),
62};
63
64static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
65			     struct snd_pcm_hw_params *params)
66{
67	int ret = 0;
68	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
69	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
70	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
71	int mclk;
72
73	switch (params_rate(params)) {
74	case 8000:
75	case 16000:
76	case 24000:
77	case 32000:
78	case 48000:
79	case 64000:
80	case 96000:
81		mclk = 12288000;
82		break;
83	case 11025:
84	case 22050:
85	case 44100:
86	case 88200:
87		mclk = 11289600;
88		break;
89	default:
90		return -EINVAL;
91	}
92
93	ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
94				     SND_SOC_CLOCK_OUT);
95	if (ret < 0) {
96		dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
97		return ret;
98	}
99
100	ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
101				     SND_SOC_CLOCK_IN);
102	if (ret < 0) {
103		dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
104		return ret;
105	}
106
107	return ret;
108}
109
110static int rk_init(struct snd_soc_pcm_runtime *runtime)
111{
112	struct snd_soc_card *card = runtime->card;
113	int ret;
114
115	/* Enable Headset and 4 Buttons Jack detection */
116	ret = snd_soc_card_jack_new_pins(card, "Headset Jack",
117					 SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
118					 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
119					 SND_JACK_BTN_2 | SND_JACK_BTN_3,
120					 &headset_jack,
121					 headset_jack_pins,
122					 ARRAY_SIZE(headset_jack_pins));
123	if (ret) {
124		dev_err(card->dev, "New Headset Jack failed! (%d)\n", ret);
125		return ret;
126	}
127
128	return rt5645_set_jack_detect(asoc_rtd_to_codec(runtime, 0)->component,
129				     &headset_jack,
130				     &headset_jack,
131				     &headset_jack);
132}
133
134static const struct snd_soc_ops rk_aif1_ops = {
135	.hw_params = rk_aif1_hw_params,
136};
137
138SND_SOC_DAILINK_DEFS(pcm,
139	DAILINK_COMP_ARRAY(COMP_EMPTY()),
140	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1")),
141	DAILINK_COMP_ARRAY(COMP_EMPTY()));
142
143static struct snd_soc_dai_link rk_dailink = {
144	.name = "rt5645",
145	.stream_name = "rt5645 PCM",
146	.init = rk_init,
147	.ops = &rk_aif1_ops,
148	/* set rt5645 as slave */
149	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
150		SND_SOC_DAIFMT_CBS_CFS,
151	SND_SOC_DAILINK_REG(pcm),
152};
153
154static struct snd_soc_card snd_soc_card_rk = {
155	.name = "I2S-RT5650",
156	.owner = THIS_MODULE,
157	.dai_link = &rk_dailink,
158	.num_links = 1,
159	.dapm_widgets = rk_dapm_widgets,
160	.num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
161	.dapm_routes = rk_audio_map,
162	.num_dapm_routes = ARRAY_SIZE(rk_audio_map),
163	.controls = rk_mc_controls,
164	.num_controls = ARRAY_SIZE(rk_mc_controls),
165};
166
167static int snd_rk_mc_probe(struct platform_device *pdev)
168{
169	int ret = 0;
170	struct snd_soc_card *card = &snd_soc_card_rk;
171	struct device_node *np = pdev->dev.of_node;
172
173	/* register the soc card */
174	card->dev = &pdev->dev;
175
176	rk_dailink.codecs->of_node = of_parse_phandle(np,
177			"rockchip,audio-codec", 0);
178	if (!rk_dailink.codecs->of_node) {
179		dev_err(&pdev->dev,
180			"Property 'rockchip,audio-codec' missing or invalid\n");
181		return -EINVAL;
182	}
183
184	rk_dailink.cpus->of_node = of_parse_phandle(np,
185			"rockchip,i2s-controller", 0);
186	if (!rk_dailink.cpus->of_node) {
187		dev_err(&pdev->dev,
188			"Property 'rockchip,i2s-controller' missing or invalid\n");
189		ret = -EINVAL;
190		goto put_codec_of_node;
191	}
192
193	rk_dailink.platforms->of_node = rk_dailink.cpus->of_node;
194
195	ret = snd_soc_of_parse_card_name(card, "rockchip,model");
196	if (ret) {
197		dev_err(&pdev->dev,
198			"Soc parse card name failed %d\n", ret);
199		goto put_cpu_of_node;
200	}
201
202	ret = devm_snd_soc_register_card(&pdev->dev, card);
203	if (ret) {
204		dev_err(&pdev->dev,
205			"Soc register card failed %d\n", ret);
206		goto put_cpu_of_node;
207	}
208
209	return ret;
210
211put_cpu_of_node:
212	of_node_put(rk_dailink.cpus->of_node);
213	rk_dailink.cpus->of_node = NULL;
214put_codec_of_node:
215	of_node_put(rk_dailink.codecs->of_node);
216	rk_dailink.codecs->of_node = NULL;
217
218	return ret;
219}
220
221static void snd_rk_mc_remove(struct platform_device *pdev)
222{
223	of_node_put(rk_dailink.cpus->of_node);
224	rk_dailink.cpus->of_node = NULL;
225	of_node_put(rk_dailink.codecs->of_node);
226	rk_dailink.codecs->of_node = NULL;
227}
228
229static const struct of_device_id rockchip_rt5645_of_match[] = {
230	{ .compatible = "rockchip,rockchip-audio-rt5645", },
231	{},
232};
233
234MODULE_DEVICE_TABLE(of, rockchip_rt5645_of_match);
235
236static struct platform_driver snd_rk_mc_driver = {
237	.probe = snd_rk_mc_probe,
238	.remove_new = snd_rk_mc_remove,
239	.driver = {
240		.name = DRV_NAME,
241		.pm = &snd_soc_pm_ops,
242		.of_match_table = rockchip_rt5645_of_match,
243	},
244};
245
246module_platform_driver(snd_rk_mc_driver);
247
248MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
249MODULE_DESCRIPTION("Rockchip rt5645 machine ASoC driver");
250MODULE_LICENSE("GPL v2");
251MODULE_ALIAS("platform:" DRV_NAME);
252