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
)) {
99 ret
= snd_soc_dai_set_sysclk(cpu_dai
, 0, mclk
,
102 dev_err(codec_dai
->dev
, "Can't set codec clock %d\n", ret
);
106 ret
= snd_soc_dai_set_sysclk(codec_dai
, 0, mclk
,
109 dev_err(codec_dai
->dev
, "Can't set codec clock %d\n", ret
);
116 static int rk_init(struct snd_soc_pcm_runtime
*runtime
)
118 struct snd_soc_card
*card
= runtime
->card
;
121 /* Enable Headset and 4 Buttons Jack detection */
122 ret
= snd_soc_card_jack_new(card
, "Headset Jack",
123 SND_JACK_HEADPHONE
| SND_JACK_MICROPHONE
|
124 SND_JACK_BTN_0
| SND_JACK_BTN_1
|
125 SND_JACK_BTN_2
| SND_JACK_BTN_3
,
126 &headset_jack
, NULL
, 0);
128 dev_err(card
->dev
, "New Headset Jack failed! (%d)\n", ret
);
132 return rt5645_set_jack_detect(runtime
->codec
,
138 static const struct snd_soc_ops rk_aif1_ops
= {
139 .hw_params
= rk_aif1_hw_params
,
142 static struct snd_soc_dai_link rk_dailink
= {
144 .stream_name
= "rt5645 PCM",
145 .codec_dai_name
= "rt5645-aif1",
148 /* set rt5645 as slave */
149 .dai_fmt
= SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_NB_NF
|
150 SND_SOC_DAIFMT_CBS_CFS
,
153 static struct snd_soc_card snd_soc_card_rk
= {
154 .name
= "I2S-RT5650",
155 .owner
= THIS_MODULE
,
156 .dai_link
= &rk_dailink
,
158 .dapm_widgets
= rk_dapm_widgets
,
159 .num_dapm_widgets
= ARRAY_SIZE(rk_dapm_widgets
),
160 .dapm_routes
= rk_audio_map
,
161 .num_dapm_routes
= ARRAY_SIZE(rk_audio_map
),
162 .controls
= rk_mc_controls
,
163 .num_controls
= ARRAY_SIZE(rk_mc_controls
),
166 static int snd_rk_mc_probe(struct platform_device
*pdev
)
169 struct snd_soc_card
*card
= &snd_soc_card_rk
;
170 struct device_node
*np
= pdev
->dev
.of_node
;
172 /* register the soc card */
173 card
->dev
= &pdev
->dev
;
175 rk_dailink
.codec_of_node
= of_parse_phandle(np
,
176 "rockchip,audio-codec", 0);
177 if (!rk_dailink
.codec_of_node
) {
179 "Property 'rockchip,audio-codec' missing or invalid\n");
183 rk_dailink
.cpu_of_node
= of_parse_phandle(np
,
184 "rockchip,i2s-controller", 0);
185 if (!rk_dailink
.cpu_of_node
) {
187 "Property 'rockchip,i2s-controller' missing or invalid\n");
191 rk_dailink
.platform_of_node
= rk_dailink
.cpu_of_node
;
193 ret
= snd_soc_of_parse_card_name(card
, "rockchip,model");
196 "Soc parse card name failed %d\n", ret
);
200 ret
= devm_snd_soc_register_card(&pdev
->dev
, card
);
203 "Soc register card failed %d\n", ret
);
210 static const struct of_device_id rockchip_rt5645_of_match
[] = {
211 { .compatible
= "rockchip,rockchip-audio-rt5645", },
215 MODULE_DEVICE_TABLE(of
, rockchip_rt5645_of_match
);
217 static struct platform_driver snd_rk_mc_driver
= {
218 .probe
= snd_rk_mc_probe
,
221 .pm
= &snd_soc_pm_ops
,
222 .of_match_table
= rockchip_rt5645_of_match
,
226 module_platform_driver(snd_rk_mc_driver
);
228 MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
229 MODULE_DESCRIPTION("Rockchip rt5645 machine ASoC driver");
230 MODULE_LICENSE("GPL v2");
231 MODULE_ALIAS("platform:" DRV_NAME
);