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/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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 __PMIC8058_OTHC_H__
#define __PMIC8058_OTHC_H__
/* Accessory detecion flags */
#define OTHC_MICBIAS_DETECT BIT(0)
#define OTHC_GPIO_DETECT BIT(1)
#define OTHC_SWITCH_DETECT BIT(2)
#define OTHC_ADC_DETECT BIT(3)
enum othc_accessory_type {
OTHC_NO_DEVICE = 0,
OTHC_HEADSET = 1 << 0,
OTHC_HEADPHONE = 1 << 1,
OTHC_MICROPHONE = 1 << 2,
OTHC_ANC_HEADSET = 1 << 3,
OTHC_ANC_HEADPHONE = 1 << 4,
OTHC_ANC_MICROPHONE = 1 << 5,
OTHC_SVIDEO_OUT = 1 << 6,
};
struct accessory_adc_thres {
int min_threshold;
int max_threshold;
};
struct othc_accessory_info {
unsigned int accessory;
unsigned int detect_flags;
unsigned int gpio;
unsigned int active_low;
unsigned int key_code;
bool enabled;
struct accessory_adc_thres adc_thres;
};
enum othc_headset_type {
OTHC_HEADSET_NO,
OTHC_HEADSET_NC,
};
struct othc_regulator_config {
const char *regulator;
unsigned int max_uV;
unsigned int min_uV;
};
/* Signal control for OTHC module */
enum othc_micbias_enable {
/* Turn off MICBIAS signal */
OTHC_SIGNAL_OFF,
/* Turn on MICBIAS signal when TCXO is enabled */
OTHC_SIGNAL_TCXO,
/* Turn on MICBIAS signal when PWM is high or TCXO is enabled */
OTHC_SIGNAL_PWM_TCXO,
/* MICBIAS always enabled */
OTHC_SIGNAL_ALWAYS_ON,
};
/* Number of MICBIAS lines supported by PMIC8058 */
enum othc_micbias {
OTHC_MICBIAS_0,
OTHC_MICBIAS_1,
OTHC_MICBIAS_2,
OTHC_MICBIAS_MAX,
};
enum othc_micbias_capability {
/* MICBIAS used only for BIAS with on/off capability */
OTHC_MICBIAS,
/* MICBIAS used to support HSED functionality */
OTHC_MICBIAS_HSED,
};
struct othc_switch_info {
u32 min_adc_threshold;
u32 max_adc_threshold;
u32 key_code;
};
struct othc_n_switch_config {
u32 voltage_settling_time_ms;
u8 num_adc_samples;
uint32_t adc_channel;
struct othc_switch_info *switch_info;
u8 num_keys;
bool default_sw_en;
u8 default_sw_idx;
};
struct hsed_bias_config {
enum othc_headset_type othc_headset;
u16 othc_lowcurr_thresh_uA;
u16 othc_highcurr_thresh_uA;
u32 othc_hyst_prediv_us;
u32 othc_period_clkdiv_us;
u32 othc_hyst_clk_us;
u32 othc_period_clk_us;
int othc_wakeup;
};
/* Configuration data for HSED */
struct othc_hsed_config {
struct hsed_bias_config *hsed_bias_config;
unsigned long detection_delay_ms;
/* Switch configuration */
unsigned long switch_debounce_ms;
bool othc_support_n_switch; /* Set if supporting > 1 switch */
struct othc_n_switch_config *switch_config;
/* Accessory configuration */
bool accessories_support;
bool accessories_adc_support;
uint32_t accessories_adc_channel;
struct othc_accessory_info *accessories;
int othc_num_accessories;
int video_out_gpio;
int ir_gpio;
};
struct pmic8058_othc_config_pdata {
enum othc_micbias micbias_select;
enum othc_micbias_enable micbias_enable;
enum othc_micbias_capability micbias_capability;
struct othc_hsed_config *hsed_config;
const char *hsed_name;
struct othc_regulator_config *micbias_regulator;
};
int pm8058_micbias_enable(enum othc_micbias micbias,
enum othc_micbias_enable enable);
int pm8058_othc_svideo_enable(enum othc_micbias micbias,
bool enable);
#endif /* __PMIC8058_OTHC_H__ */