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/*
* Copyright (C) 2012 Spreadtrum Communications Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that 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.
*/
#ifndef __HEADSET_SPRD_SC2723_H__
#define __HEADSET_SPRD_SC2723_H__
#include <linux/switch.h>
#include <linux/input.h>
#include <linux/platform_device.h>
enum {
BIT_HEADSET_OUT = 0,
BIT_HEADSET_MIC = (1 << 0),
BIT_HEADSET_NO_MIC = (1 << 1),
};
struct headset_buttons {
int adc_min;
int adc_max;
int code;
unsigned int type; /* input event type (EV_KEY, EV_SW, EV_ABS) */
};
struct sprd_headset_platform_data {
int gpio_switch;
int gpio_detect;
int gpio_button;
int gpio_detect_mic;
int irq_trigger_level_detect;
int irq_trigger_level_button;
int irq_trigger_level_detect_mic;
int adc_threshold_3pole_detect;
int adc_threshold_4pole_detect;
int irq_threshold_buttont;
int voltage_headmicbias;
struct headset_buttons *headset_buttons;
int nbuttons;
int (*external_headmicbias_power_on)(int);
};
struct sprd_headset {
int headphone;
int type;
int irq_detect;
int irq_button;
int irq_detect_mic;
struct sprd_headset_platform_data *platform_data;
struct switch_dev sdev;
struct input_dev *input_dev;
struct delayed_work work_detect;
struct workqueue_struct *detect_work_queue;
struct work_struct work_button;
struct workqueue_struct *button_work_queue;
};
#endif
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