2 * Rockchip machine ASoC driver for boards using a RT5645/RT5650 CODEC.
4 * Copyright (c) 2015, ROCKCHIP CORPORATION. All rights reserved.
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.
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
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/>.
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 <linux/delay.h>
26 #include <sound/core.h>
27 #include <sound/jack.h>
28 #include <sound/pcm.h>
29 #include <sound/pcm_params.h>
30 #include <sound/soc.h>
31 #include "rockchip_i2s.h"
33 #define DRV_NAME "rockchip-snd-rt5645"
35 static struct snd_soc_jack headset_jack;
37 /* Jack detect via rt5645 driver. */
38 extern int rt5645_set_jack_detect(struct snd_soc_codec *codec,
39 struct snd_soc_jack *hp_jack, struct snd_soc_jack *mic_jack,
40 struct snd_soc_jack *btn_jack);
42 static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
43 SND_SOC_DAPM_HP("Headphones", NULL),
44 SND_SOC_DAPM_SPK("Speakers", NULL),
45 SND_SOC_DAPM_MIC("Headset Mic", NULL),
46 SND_SOC_DAPM_MIC("Int Mic", NULL),
49 static const struct snd_soc_dapm_route rk_audio_map[] = {
51 {"DMIC L2", NULL, "Int Mic"},
52 {"DMIC R2", NULL, "Int Mic"},
53 {"RECMIXL", NULL, "Headset Mic"},
54 {"RECMIXR", NULL, "Headset Mic"},
57 {"Headphones", NULL, "HPOR"},
58 {"Headphones", NULL, "HPOL"},
59 {"Speakers", NULL, "SPOL"},
60 {"Speakers", NULL, "SPOR"},
63 static const struct snd_kcontrol_new rk_mc_controls[] = {
64 SOC_DAPM_PIN_SWITCH("Headphones"),
65 SOC_DAPM_PIN_SWITCH("Speakers"),
66 SOC_DAPM_PIN_SWITCH("Headset Mic"),
67 SOC_DAPM_PIN_SWITCH("Int Mic"),
70 static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
71 struct snd_pcm_hw_params *params)
74 struct snd_soc_pcm_runtime *rtd = substream->private_data;
75 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
76 struct snd_soc_dai *codec_dai = rtd->codec_dai;
79 switch (params_rate(params)) {
93 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
96 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
100 ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
103 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
110 static int rk_init(struct snd_soc_pcm_runtime *runtime)
112 struct snd_soc_card *card = runtime->card;
115 /* Enable Headset and 4 Buttons Jack detection */
116 ret = snd_soc_card_jack_new(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, NULL, 0);
122 dev_err(card->dev, "New Headset Jack failed! (%d)\n", ret);
126 return rt5645_set_jack_detect(runtime->codec,
132 static struct snd_soc_ops rk_aif1_ops = {
133 .hw_params = rk_aif1_hw_params,
136 static struct snd_soc_dai_link rk_dailink = {
138 .stream_name = "rt5645 PCM",
139 .codec_dai_name = "rt5645-aif1",
142 /* set rt5645 as slave */
143 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
144 SND_SOC_DAIFMT_CBS_CFS,
147 static struct snd_soc_card snd_soc_card_rk = {
148 .name = "I2S-RT5650",
149 .owner = THIS_MODULE,
150 .dai_link = &rk_dailink,
152 .dapm_widgets = rk_dapm_widgets,
153 .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
154 .dapm_routes = rk_audio_map,
155 .num_dapm_routes = ARRAY_SIZE(rk_audio_map),
156 .controls = rk_mc_controls,
157 .num_controls = ARRAY_SIZE(rk_mc_controls),
160 static int snd_rk_mc_probe(struct platform_device *pdev)
163 struct snd_soc_card *card = &snd_soc_card_rk;
164 struct device_node *np = pdev->dev.of_node;
166 /* register the soc card */
167 card->dev = &pdev->dev;
169 rk_dailink.codec_of_node = of_parse_phandle(np,
170 "rockchip,audio-codec", 0);
171 if (!rk_dailink.codec_of_node) {
173 "Property 'rockchip,audio-codec' missing or invalid\n");
177 rk_dailink.cpu_of_node = of_parse_phandle(np,
178 "rockchip,i2s-controller", 0);
179 if (!rk_dailink.cpu_of_node) {
181 "Property 'rockchip,i2s-controller' missing or invalid\n");
185 rk_dailink.platform_of_node = rk_dailink.cpu_of_node;
187 ret = snd_soc_of_parse_card_name(card, "rockchip,model");
190 "Soc parse card name failed %d\n", ret);
194 ret = devm_snd_soc_register_card(&pdev->dev, card);
197 "Soc register card failed %d\n", ret);
204 static const struct of_device_id rockchip_rt5645_of_match[] = {
205 { .compatible = "rockchip,rockchip-audio-rt5645", },
209 MODULE_DEVICE_TABLE(of, rockchip_rt5645_of_match);
211 static struct platform_driver snd_rk_mc_driver = {
212 .probe = snd_rk_mc_probe,
215 .pm = &snd_soc_pm_ops,
216 .of_match_table = rockchip_rt5645_of_match,
220 module_platform_driver(snd_rk_mc_driver);
222 MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
223 MODULE_DESCRIPTION("Rockchip rt5645 machine ASoC driver");
224 MODULE_LICENSE("GPL v2");
225 MODULE_ALIAS("platform:" DRV_NAME);