1/*
2 * Rockchip machine ASoC driver for boards using a MAX90809 CODEC.
3 *
4 * Copyright (c) 2014, ROCKCHIP CORPORATION.  All rights reserved.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13 * more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
17 *
18 */
19
20#include <linux/module.h>
21#include <linux/platform_device.h>
22#include <linux/slab.h>
23#include <linux/gpio.h>
24#include <linux/of_gpio.h>
25#include <sound/core.h>
26#include <sound/jack.h>
27#include <sound/pcm.h>
28#include <sound/pcm_params.h>
29#include <sound/soc.h>
30
31#include "rockchip_i2s.h"
32#include "../codecs/ts3a227e.h"
33
34#define DRV_NAME "rockchip-snd-max98090"
35
36static struct snd_soc_jack headset_jack;
37static struct snd_soc_jack_pin headset_jack_pins[] = {
38	{
39		.pin = "Headset Jack",
40		.mask = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
41			SND_JACK_BTN_0 | SND_JACK_BTN_1 |
42			SND_JACK_BTN_2 | SND_JACK_BTN_3,
43	},
44};
45
46static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
47	SND_SOC_DAPM_HP("Headphone", NULL),
48	SND_SOC_DAPM_MIC("Headset Mic", NULL),
49	SND_SOC_DAPM_MIC("Int Mic", NULL),
50	SND_SOC_DAPM_SPK("Speaker", NULL),
51};
52
53static const struct snd_soc_dapm_route rk_audio_map[] = {
54	{"IN34", NULL, "Headset Mic"},
55	{"IN34", NULL, "MICBIAS"},
56	{"MICBIAS", NULL, "Headset Mic"},
57	{"DMICL", NULL, "Int Mic"},
58	{"Headphone", NULL, "HPL"},
59	{"Headphone", NULL, "HPR"},
60	{"Speaker", NULL, "SPKL"},
61	{"Speaker", NULL, "SPKR"},
62};
63
64static const struct snd_kcontrol_new rk_mc_controls[] = {
65	SOC_DAPM_PIN_SWITCH("Headphone"),
66	SOC_DAPM_PIN_SWITCH("Headset Mic"),
67	SOC_DAPM_PIN_SWITCH("Int Mic"),
68	SOC_DAPM_PIN_SWITCH("Speaker"),
69};
70
71static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
72			     struct snd_pcm_hw_params *params)
73{
74	int ret = 0;
75	struct snd_soc_pcm_runtime *rtd = substream->private_data;
76	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
77	struct snd_soc_dai *codec_dai = rtd->codec_dai;
78	int mclk;
79
80	switch (params_rate(params)) {
81	case 8000:
82	case 16000:
83	case 48000:
84	case 96000:
85		mclk = 12288000;
86		break;
87	case 44100:
88		mclk = 11289600;
89		break;
90	default:
91		return -EINVAL;
92	}
93
94	ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
95				     SND_SOC_CLOCK_OUT);
96	if (ret < 0) {
97		dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
98		return ret;
99	}
100
101	ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
102				     SND_SOC_CLOCK_IN);
103	if (ret < 0) {
104		dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
105		return ret;
106	}
107
108	return ret;
109}
110
111static int rk_init(struct snd_soc_pcm_runtime *runtime)
112{
113	/* Enable Headset and 4 Buttons Jack detection */
114	return snd_soc_card_jack_new(runtime->card, "Headset Jack",
115			       SND_JACK_HEADSET |
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}
122
123static int rk_98090_headset_init(struct snd_soc_component *component)
124{
125	return ts3a227e_enable_jack_detect(component, &headset_jack);
126}
127
128static struct snd_soc_ops rk_aif1_ops = {
129	.hw_params = rk_aif1_hw_params,
130};
131
132static struct snd_soc_aux_dev rk_98090_headset_dev = {
133	.name = "Headset Chip",
134	.init = rk_98090_headset_init,
135};
136
137static struct snd_soc_dai_link rk_dailink = {
138	.name = "max98090",
139	.stream_name = "Audio",
140	.codec_dai_name = "HiFi",
141	.init = rk_init,
142	.ops = &rk_aif1_ops,
143	/* set max98090 as slave */
144	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
145		SND_SOC_DAIFMT_CBS_CFS,
146};
147
148static struct snd_soc_card snd_soc_card_rk = {
149	.name = "ROCKCHIP-I2S",
150	.owner = THIS_MODULE,
151	.dai_link = &rk_dailink,
152	.num_links = 1,
153	.aux_dev = &rk_98090_headset_dev,
154	.num_aux_devs = 1,
155	.dapm_widgets = rk_dapm_widgets,
156	.num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
157	.dapm_routes = rk_audio_map,
158	.num_dapm_routes = ARRAY_SIZE(rk_audio_map),
159	.controls = rk_mc_controls,
160	.num_controls = ARRAY_SIZE(rk_mc_controls),
161};
162
163static int snd_rk_mc_probe(struct platform_device *pdev)
164{
165	int ret = 0;
166	struct snd_soc_card *card = &snd_soc_card_rk;
167	struct device_node *np = pdev->dev.of_node;
168
169	/* register the soc card */
170	card->dev = &pdev->dev;
171
172	rk_dailink.codec_of_node = of_parse_phandle(np,
173			"rockchip,audio-codec", 0);
174	if (!rk_dailink.codec_of_node) {
175		dev_err(&pdev->dev,
176			"Property 'rockchip,audio-codec' missing or invalid\n");
177		return -EINVAL;
178	}
179
180	rk_dailink.cpu_of_node = of_parse_phandle(np,
181			"rockchip,i2s-controller", 0);
182	if (!rk_dailink.cpu_of_node) {
183		dev_err(&pdev->dev,
184			"Property 'rockchip,i2s-controller' missing or invalid\n");
185		return -EINVAL;
186	}
187
188	rk_dailink.platform_of_node = rk_dailink.cpu_of_node;
189
190	rk_98090_headset_dev.codec_of_node = of_parse_phandle(np,
191			"rockchip,headset-codec", 0);
192	if (!rk_98090_headset_dev.codec_of_node) {
193		dev_err(&pdev->dev,
194			"Property 'rockchip,headset-codec' missing/invalid\n");
195		return -EINVAL;
196	}
197
198	ret = snd_soc_of_parse_card_name(card, "rockchip,model");
199	if (ret) {
200		dev_err(&pdev->dev,
201			"Soc parse card name failed %d\n", ret);
202		return ret;
203	}
204
205	ret = devm_snd_soc_register_card(&pdev->dev, card);
206	if (ret) {
207		dev_err(&pdev->dev,
208			"Soc register card failed %d\n", ret);
209		return ret;
210	}
211
212	return ret;
213}
214
215static const struct of_device_id rockchip_max98090_of_match[] = {
216	{ .compatible = "rockchip,rockchip-audio-max98090", },
217	{},
218};
219
220MODULE_DEVICE_TABLE(of, rockchip_max98090_of_match);
221
222static struct platform_driver snd_rk_mc_driver = {
223	.probe = snd_rk_mc_probe,
224	.driver = {
225		.name = DRV_NAME,
226		.pm = &snd_soc_pm_ops,
227		.of_match_table = rockchip_max98090_of_match,
228	},
229};
230
231module_platform_driver(snd_rk_mc_driver);
232
233MODULE_AUTHOR("jianqun <jay.xu@rock-chips.com>");
234MODULE_DESCRIPTION("Rockchip max98090 machine ASoC driver");
235MODULE_LICENSE("GPL v2");
236MODULE_ALIAS("platform:" DRV_NAME);
237