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/delay.h>
 12#include <sound/core.h>
 13#include <sound/jack.h>
 14#include <sound/pcm.h>
 15#include <sound/pcm_params.h>
 16#include <sound/soc.h>
 17#include "rockchip_i2s.h"
 18#include "../codecs/rt5645.h"
 19
 20#define DRV_NAME "rockchip-snd-rt5645"
 21
 22static struct snd_soc_jack headset_jack;
 23static struct snd_soc_jack_pin headset_jack_pins[] = {
 24	{
 25		.pin = "Headphones",
 26		.mask = SND_JACK_HEADPHONE,
 27	},
 28	{
 29		.pin = "Headset Mic",
 30		.mask = SND_JACK_MICROPHONE,
 31	},
 32};
 33
 34static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
 35	SND_SOC_DAPM_HP("Headphones", NULL),
 36	SND_SOC_DAPM_SPK("Speakers", NULL),
 37	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 38	SND_SOC_DAPM_MIC("Int Mic", NULL),
 39};
 40
 41static const struct snd_soc_dapm_route rk_audio_map[] = {
 42	/* Input Lines */
 43	{"DMIC L2", NULL, "Int Mic"},
 44	{"DMIC R2", NULL, "Int Mic"},
 45	{"RECMIXL", NULL, "Headset Mic"},
 46	{"RECMIXR", NULL, "Headset Mic"},
 47
 48	/* Output Lines */
 49	{"Headphones", NULL, "HPOR"},
 50	{"Headphones", NULL, "HPOL"},
 51	{"Speakers", NULL, "SPOL"},
 52	{"Speakers", NULL, "SPOR"},
 53};
 54
 55static const struct snd_kcontrol_new rk_mc_controls[] = {
 56	SOC_DAPM_PIN_SWITCH("Headphones"),
 57	SOC_DAPM_PIN_SWITCH("Speakers"),
 58	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 59	SOC_DAPM_PIN_SWITCH("Int Mic"),
 60};
 61
 62static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
 63			     struct snd_pcm_hw_params *params)
 64{
 65	int ret = 0;
 66	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 67	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
 68	struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
 69	int mclk;
 70
 71	switch (params_rate(params)) {
 72	case 8000:
 73	case 16000:
 74	case 24000:
 75	case 32000:
 76	case 48000:
 77	case 64000:
 78	case 96000:
 79		mclk = 12288000;
 80		break;
 81	case 11025:
 82	case 22050:
 83	case 44100:
 84	case 88200:
 85		mclk = 11289600;
 86		break;
 87	default:
 88		return -EINVAL;
 89	}
 90
 91	ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
 92				     SND_SOC_CLOCK_OUT);
 93	if (ret < 0) {
 94		dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
 95		return ret;
 96	}
 97
 98	ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
 99				     SND_SOC_CLOCK_IN);
100	if (ret < 0) {
101		dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
102		return ret;
103	}
104
105	return ret;
106}
107
108static int rk_init(struct snd_soc_pcm_runtime *runtime)
109{
110	struct snd_soc_card *card = runtime->card;
111	int ret;
112
113	/* Enable Headset and 4 Buttons Jack detection */
114	ret = snd_soc_card_jack_new_pins(card, "Headset Jack",
115					 SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
116					 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
117					 SND_JACK_BTN_2 | SND_JACK_BTN_3,
118					 &headset_jack,
119					 headset_jack_pins,
120					 ARRAY_SIZE(headset_jack_pins));
121	if (ret) {
122		dev_err(card->dev, "New Headset Jack failed! (%d)\n", ret);
123		return ret;
124	}
125
126	return rt5645_set_jack_detect(snd_soc_rtd_to_codec(runtime, 0)->component,
127				     &headset_jack,
128				     &headset_jack,
129				     &headset_jack);
130}
131
132static const struct snd_soc_ops rk_aif1_ops = {
133	.hw_params = rk_aif1_hw_params,
134};
135
136SND_SOC_DAILINK_DEFS(pcm,
137	DAILINK_COMP_ARRAY(COMP_EMPTY()),
138	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5645-aif1")),
139	DAILINK_COMP_ARRAY(COMP_EMPTY()));
140
141static struct snd_soc_dai_link rk_dailink = {
142	.name = "rt5645",
143	.stream_name = "rt5645 PCM",
144	.init = rk_init,
145	.ops = &rk_aif1_ops,
146	/* set rt5645 as slave */
147	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
148		SND_SOC_DAIFMT_CBS_CFS,
149	SND_SOC_DAILINK_REG(pcm),
150};
151
152static struct snd_soc_card snd_soc_card_rk = {
153	.name = "I2S-RT5650",
154	.owner = THIS_MODULE,
155	.dai_link = &rk_dailink,
156	.num_links = 1,
157	.dapm_widgets = rk_dapm_widgets,
158	.num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
159	.dapm_routes = rk_audio_map,
160	.num_dapm_routes = ARRAY_SIZE(rk_audio_map),
161	.controls = rk_mc_controls,
162	.num_controls = ARRAY_SIZE(rk_mc_controls),
163};
164
165static int snd_rk_mc_probe(struct platform_device *pdev)
166{
167	int ret = 0;
168	struct snd_soc_card *card = &snd_soc_card_rk;
169	struct device_node *np = pdev->dev.of_node;
170
171	/* register the soc card */
172	card->dev = &pdev->dev;
173
174	rk_dailink.codecs->of_node = of_parse_phandle(np,
175			"rockchip,audio-codec", 0);
176	if (!rk_dailink.codecs->of_node) {
177		dev_err(&pdev->dev,
178			"Property 'rockchip,audio-codec' missing or invalid\n");
179		return -EINVAL;
180	}
181
182	rk_dailink.cpus->of_node = of_parse_phandle(np,
183			"rockchip,i2s-controller", 0);
184	if (!rk_dailink.cpus->of_node) {
185		dev_err(&pdev->dev,
186			"Property 'rockchip,i2s-controller' missing or invalid\n");
187		ret = -EINVAL;
188		goto put_codec_of_node;
189	}
190
191	rk_dailink.platforms->of_node = rk_dailink.cpus->of_node;
192
193	ret = snd_soc_of_parse_card_name(card, "rockchip,model");
194	if (ret) {
195		dev_err(&pdev->dev,
196			"Soc parse card name failed %d\n", ret);
197		goto put_cpu_of_node;
198	}
199
200	ret = devm_snd_soc_register_card(&pdev->dev, card);
201	if (ret) {
202		dev_err(&pdev->dev,
203			"Soc register card failed %d\n", ret);
204		goto put_cpu_of_node;
205	}
206
207	return ret;
208
209put_cpu_of_node:
210	of_node_put(rk_dailink.cpus->of_node);
211	rk_dailink.cpus->of_node = NULL;
212put_codec_of_node:
213	of_node_put(rk_dailink.codecs->of_node);
214	rk_dailink.codecs->of_node = NULL;
215
216	return ret;
217}
218
219static void snd_rk_mc_remove(struct platform_device *pdev)
220{
221	of_node_put(rk_dailink.cpus->of_node);
222	rk_dailink.cpus->of_node = NULL;
223	of_node_put(rk_dailink.codecs->of_node);
224	rk_dailink.codecs->of_node = NULL;
225}
226
227static const struct of_device_id rockchip_rt5645_of_match[] = {
228	{ .compatible = "rockchip,rockchip-audio-rt5645", },
229	{},
230};
231
232MODULE_DEVICE_TABLE(of, rockchip_rt5645_of_match);
233
234static struct platform_driver snd_rk_mc_driver = {
235	.probe = snd_rk_mc_probe,
236	.remove = snd_rk_mc_remove,
237	.driver = {
238		.name = DRV_NAME,
239		.pm = &snd_soc_pm_ops,
240		.of_match_table = rockchip_rt5645_of_match,
241	},
242};
243
244module_platform_driver(snd_rk_mc_driver);
245
246MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
247MODULE_DESCRIPTION("Rockchip rt5645 machine ASoC driver");
248MODULE_LICENSE("GPL v2");
249MODULE_ALIAS("platform:" DRV_NAME);