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Release 4.7 sound/soc/rockchip/rockchip_rt5645.c

/*
 * 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 24000: case 32000: case 48000: case 64000: case 96000: mclk = 12288000; break; case 11025: case 22050: case 44100: case 88200: 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; }

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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); }

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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; }

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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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