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"
32 #include "../codecs/rt5645.h"
34 #define DRV_NAME "rockchip-snd-rt5645"
36 static struct snd_soc_jack headset_jack;
38 static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
39 SND_SOC_DAPM_HP("Headphones", NULL),
40 SND_SOC_DAPM_SPK("Speakers", NULL),
41 SND_SOC_DAPM_MIC("Headset Mic", NULL),
42 SND_SOC_DAPM_MIC("Int Mic", NULL),
45 static const struct snd_soc_dapm_route rk_audio_map[] = {
47 {"DMIC L2", NULL, "Int Mic"},
48 {"DMIC R2", NULL, "Int Mic"},
49 {"RECMIXL", NULL, "Headset Mic"},
50 {"RECMIXR", NULL, "Headset Mic"},
53 {"Headphones", NULL, "HPOR"},
54 {"Headphones", NULL, "HPOL"},
55 {"Speakers", NULL, "SPOL"},
56 {"Speakers", NULL, "SPOR"},
59 static const struct snd_kcontrol_new rk_mc_controls[] = {
60 SOC_DAPM_PIN_SWITCH("Headphones"),
61 SOC_DAPM_PIN_SWITCH("Speakers"),
62 SOC_DAPM_PIN_SWITCH("Headset Mic"),
63 SOC_DAPM_PIN_SWITCH("Int Mic"),
66 static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
67 struct snd_pcm_hw_params *params)
70 struct snd_soc_pcm_runtime *rtd = substream->private_data;
71 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
72 struct snd_soc_dai *codec_dai = rtd->codec_dai;
75 switch (params_rate(params)) {
95 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
98 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
102 ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
105 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
112 static int rk_init(struct snd_soc_pcm_runtime *runtime)
114 struct snd_soc_card *card = runtime->card;
117 /* Enable Headset and 4 Buttons Jack detection */
118 ret = snd_soc_card_jack_new(card, "Headset Jack",
119 SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
120 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
121 SND_JACK_BTN_2 | SND_JACK_BTN_3,
122 &headset_jack, NULL, 0);
124 dev_err(card->dev, "New Headset Jack failed! (%d)\n", ret);
128 return rt5645_set_jack_detect(runtime->codec_dai->component,
134 static const struct snd_soc_ops rk_aif1_ops = {
135 .hw_params = rk_aif1_hw_params,
138 static struct snd_soc_dai_link rk_dailink = {
140 .stream_name = "rt5645 PCM",
141 .codec_dai_name = "rt5645-aif1",
144 /* set rt5645 as slave */
145 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
146 SND_SOC_DAIFMT_CBS_CFS,
149 static struct snd_soc_card snd_soc_card_rk = {
150 .name = "I2S-RT5650",
151 .owner = THIS_MODULE,
152 .dai_link = &rk_dailink,
154 .dapm_widgets = rk_dapm_widgets,
155 .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
156 .dapm_routes = rk_audio_map,
157 .num_dapm_routes = ARRAY_SIZE(rk_audio_map),
158 .controls = rk_mc_controls,
159 .num_controls = ARRAY_SIZE(rk_mc_controls),
162 static int snd_rk_mc_probe(struct platform_device *pdev)
165 struct snd_soc_card *card = &snd_soc_card_rk;
166 struct device_node *np = pdev->dev.of_node;
168 /* register the soc card */
169 card->dev = &pdev->dev;
171 rk_dailink.codec_of_node = of_parse_phandle(np,
172 "rockchip,audio-codec", 0);
173 if (!rk_dailink.codec_of_node) {
175 "Property 'rockchip,audio-codec' missing or invalid\n");
179 rk_dailink.cpu_of_node = of_parse_phandle(np,
180 "rockchip,i2s-controller", 0);
181 if (!rk_dailink.cpu_of_node) {
183 "Property 'rockchip,i2s-controller' missing or invalid\n");
185 goto put_codec_of_node;
188 rk_dailink.platform_of_node = rk_dailink.cpu_of_node;
190 ret = snd_soc_of_parse_card_name(card, "rockchip,model");
193 "Soc parse card name failed %d\n", ret);
194 goto put_cpu_of_node;
197 ret = devm_snd_soc_register_card(&pdev->dev, card);
200 "Soc register card failed %d\n", ret);
201 goto put_cpu_of_node;
207 of_node_put(rk_dailink.cpu_of_node);
208 rk_dailink.cpu_of_node = NULL;
210 of_node_put(rk_dailink.codec_of_node);
211 rk_dailink.codec_of_node = NULL;
216 static int snd_rk_mc_remove(struct platform_device *pdev)
218 of_node_put(rk_dailink.cpu_of_node);
219 rk_dailink.cpu_of_node = NULL;
220 of_node_put(rk_dailink.codec_of_node);
221 rk_dailink.codec_of_node = NULL;
226 static const struct of_device_id rockchip_rt5645_of_match[] = {
227 { .compatible = "rockchip,rockchip-audio-rt5645", },
231 MODULE_DEVICE_TABLE(of, rockchip_rt5645_of_match);
233 static struct platform_driver snd_rk_mc_driver = {
234 .probe = snd_rk_mc_probe,
235 .remove = snd_rk_mc_remove,
238 .pm = &snd_soc_pm_ops,
239 .of_match_table = rockchip_rt5645_of_match,
243 module_platform_driver(snd_rk_mc_driver);
245 MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
246 MODULE_DESCRIPTION("Rockchip rt5645 machine ASoC driver");
247 MODULE_LICENSE("GPL v2");
248 MODULE_ALIAS("platform:" DRV_NAME);