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/*
* Rockchip machine ASoC driver for boards using a RT5645/RT5650 CODEC.
*
* Copyright (c) 2015, ROCKCHIP CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/delay.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include "rockchip_i2s.h"
#define DRV_NAME "rockchip-snd-rt5645"
static struct snd_soc_jack headset_jack;
/* Jack detect via rt5645 driver. */
extern int rt5645_set_jack_detect(struct snd_soc_codec *codec,
struct snd_soc_jack *hp_jack, struct snd_soc_jack *mic_jack,
struct snd_soc_jack *btn_jack);
static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphones", NULL),
SND_SOC_DAPM_SPK("Speakers", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Int Mic", NULL),
};
static const struct snd_soc_dapm_route rk_audio_map[] = {
/* Input Lines */
{"DMIC L2", NULL, "Int Mic"},
{"DMIC R2", NULL, "Int Mic"},
{"RECMIXL", NULL, "Headset Mic"},
{"RECMIXR", NULL, "Headset Mic"},
/* Output Lines */
{"Headphones", NULL, "HPOR"},
{"Headphones", NULL, "HPOL"},
{"Speakers", NULL, "SPOL"},
{"Speakers", NULL, "SPOR"},
};
static const struct snd_kcontrol_new rk_mc_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphones"),
SOC_DAPM_PIN_SWITCH("Speakers"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
SOC_DAPM_PIN_SWITCH("Int Mic"),
};
static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
int ret = 0;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int mclk;
switch (params_rate(params)) {
case 8000:
case 16000:
case 48000:
case 96000:
mclk = 12288000;
break;
case 44100:
mclk = 11289600;
break;
default:
return -EINVAL;
}
ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
SND_SOC_CLOCK_OUT);
if (ret < 0) {
dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
return ret;
}
return ret;
}
static int rk_init(struct snd_soc_pcm_runtime *runtime)
{
struct snd_soc_card *card = runtime->card;
int ret;
/* Enable Headset and 4 Buttons Jack detection */
ret = snd_soc_card_jack_new(card, "Headset Jack",
SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3,
&headset_jack, NULL, 0);
if (ret) {
dev_err(card->dev, "New Headset Jack failed! (%d)\n", ret);
return ret;
}
return rt5645_set_jack_detect(runtime->codec,
&headset_jack,
&headset_jack,
&headset_jack);
}
static struct snd_soc_ops rk_aif1_ops = {
.hw_params = rk_aif1_hw_params,
};
static struct snd_soc_dai_link rk_dailink = {
.name = "rt5645",
.stream_name = "rt5645 PCM",
.codec_dai_name = "rt5645-aif1",
.init = rk_init,
.ops = &rk_aif1_ops,
/* set rt5645 as slave */
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
};
static struct snd_soc_card snd_soc_card_rk = {
.name = "I2S-RT5650",
.owner = THIS_MODULE,
.dai_link = &rk_dailink,
.num_links = 1,
.dapm_widgets = rk_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
.dapm_routes = rk_audio_map,
.num_dapm_routes = ARRAY_SIZE(rk_audio_map),
.controls = rk_mc_controls,
.num_controls = ARRAY_SIZE(rk_mc_controls),
};
static int snd_rk_mc_probe(struct platform_device *pdev)
{
int ret = 0;
struct snd_soc_card *card = &snd_soc_card_rk;
struct device_node *np = pdev->dev.of_node;
/* register the soc card */
card->dev = &pdev->dev;
rk_dailink.codec_of_node = of_parse_phandle(np,
"rockchip,audio-codec", 0);
if (!rk_dailink.codec_of_node) {
dev_err(&pdev->dev,
"Property 'rockchip,audio-codec' missing or invalid\n");
return -EINVAL;
}
rk_dailink.cpu_of_node = of_parse_phandle(np,
"rockchip,i2s-controller", 0);
if (!rk_dailink.cpu_of_node) {
dev_err(&pdev->dev,
"Property 'rockchip,i2s-controller' missing or invalid\n");
return -EINVAL;
}
rk_dailink.platform_of_node = rk_dailink.cpu_of_node;
ret = snd_soc_of_parse_card_name(card, "rockchip,model");
if (ret) {
dev_err(&pdev->dev,
"Soc parse card name failed %d\n", ret);
return ret;
}
ret = devm_snd_soc_register_card(&pdev->dev, card);
if (ret) {
dev_err(&pdev->dev,
"Soc register card failed %d\n", ret);
return ret;
}
return ret;
}
static const struct of_device_id rockchip_rt5645_of_match[] = {
{ .compatible = "rockchip,rockchip-audio-rt5645", },
{},
};
MODULE_DEVICE_TABLE(of, rockchip_rt5645_of_match);
static struct platform_driver snd_rk_mc_driver = {
.probe = snd_rk_mc_probe,
.driver = {
.name = DRV_NAME,
.pm = &snd_soc_pm_ops,
.of_match_table = rockchip_rt5645_of_match,
},
};
module_platform_driver(snd_rk_mc_driver);
MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
MODULE_DESCRIPTION("Rockchip rt5645 machine ASoC driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:" DRV_NAME);
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