126 lines
2.9 KiB
C
126 lines
2.9 KiB
C
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/*
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* jack_madera_sysfs_cb.c
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* Copyright (c) Samsung Electronics
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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*/
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#include <linux/extcon.h>
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#include <linux/input.h>
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#include <linux/extcon/extcon-madera.h>
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#include <linux/mfd/madera/core.h>
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#include <sound/soc.h>
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#include <sound/samsung/sec_audio_sysfs.h>
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#include "jack_madera_sysfs_cb.h"
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static struct snd_soc_codec *madera_codec;
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int madera_jack_det;
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int madera_ear_mic;
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static int select_jack(int state)
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{
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struct snd_soc_codec *codec = madera_codec;
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dev_info(codec->dev, "%s: %d\n", __func__, state);
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/* To be developed */
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return 0;
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}
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static int get_jack_status(void)
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{
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struct snd_soc_codec *codec = madera_codec;
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dev_info(codec->dev, "%s: %d\n", __func__, madera_jack_det);
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return (madera_jack_det || madera_ear_mic);
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}
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static int get_key_status(void)
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{
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struct snd_soc_codec *codec = madera_codec;
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struct madera *madera = dev_get_drvdata(codec->dev->parent);
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unsigned int val, lvl;
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int ret, key;
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ret = regmap_read(madera->regmap, MADERA_MIC_DETECT_1_CONTROL_3, &val);
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if (ret != 0) {
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dev_err(codec->dev, "Failed to read MICDET: %d\n", ret);
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return 0;
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}
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dev_info(codec->dev, "MICDET: %x\n", val);
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ret = 0;
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if (val & MADERA_MICD_LVL_0_TO_7) {
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dev_info(codec->dev, "val LVL_0_TO_7\n");
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if (madera_ear_mic) {
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lvl = val & MADERA_MICD_LVL_MASK;
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lvl >>= MADERA_MICD_LVL_SHIFT;
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WARN_ON(!lvl);
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WARN_ON(ffs(lvl) - 1 >= madera->pdata.accdet[0].num_micd_ranges);
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if (lvl && ffs(lvl) - 1 < madera->pdata.accdet[0].num_micd_ranges) {
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key = madera->pdata.accdet[0].micd_ranges[ffs(lvl) - 1].key;
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if (key == KEY_MEDIA)
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ret = 1;
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}
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}
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}
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dev_info(codec->dev, "%s: %d\n", __func__, ret);
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return ret;
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}
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static int get_mic_adc(void)
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{
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struct snd_soc_codec *codec = madera_codec;
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struct madera *madera = dev_get_drvdata(codec->dev->parent);
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struct madera_extcon *info = madera->extcon_info;
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int adc;
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adc = madera_extcon_manual_mic_reading(info);
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dev_info(codec->dev, "%s: %d\n", __func__, adc);
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return adc;
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}
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#ifdef CONFIG_EXTCON_PTT
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static int get_ptt_state(void)
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{
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struct snd_soc_codec *codec = madera_codec;
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struct madera *madera = dev_get_drvdata(codec->dev->parent);
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struct madera_extcon *info = madera->extcon_info;
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int ptt_state;
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ptt_state = info->ptt_state;
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dev_info(codec->dev, "%s: %d\n", __func__, ptt_state);
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return ptt_state;
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}
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#endif
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void register_madera_jack_cb(struct snd_soc_codec *codec)
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{
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madera_codec = codec;
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audio_register_jack_select_cb(select_jack);
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audio_register_jack_state_cb(get_jack_status);
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audio_register_key_state_cb(get_key_status);
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audio_register_mic_adc_cb(get_mic_adc);
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#ifdef CONFIG_EXTCON_PTT
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audio_register_ptt_state_cb(get_ptt_state);
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#endif
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}
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EXPORT_SYMBOL_GPL(register_madera_jack_cb);
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