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/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* TPSChrome PMU APIs.
*/
#ifndef __CROS_EC_TPSCHROME_H
#define __CROS_EC_TPSCHROME_H
enum TPS_TEMPERATURE_RANGE {
RANGE_T01,
RANGE_T12, /* low charging temperature range */
RANGE_T23, /* standard charging temperature range */
RANGE_T34, /* high charging temperature range */
RANGE_T40,
};
/* Termination voltage */
enum TPS_TERMINATION_VOLTAGE {
TERM_V2000, /* 2.000 V */
TERM_V2050, /* 2.050 V */
TERM_V2075, /* 2.075 V */
TERM_V2100, /* 2.100 V */
};
/* Termination current */
enum TPS_TERMINATION_CURRENT {
TERM_I0000, /* 0 % */
TERM_I0250, /* 25 % */
TERM_I0375, /* 37.5 % */
TERM_I0500, /* 50 % */
TERM_I0625, /* 62.5 % */
TERM_I0750, /* 75 % */
TERM_I0875, /* 87.5 % */
TERM_I1000, /* 100 % */
};
#define FET_BACKLIGHT 1
#define FET_LCD_PANEL 6
/**
* Read pmu register
*
* @param reg register offset
* @param value pointer to output value
* @return return EC_SUCCESS on success, err code otherwise
*/
int pmu_read(int reg, int *value);
/**
* Write pmu register
*
* @param reg register offset
* @param value new register value
* @return return EC_SUCCESS on success, err code otherwise
*/
int pmu_write(int reg, int value);
/**
* Read tpschrome version
*
* @param version output tpschrome version info
*/
int pmu_version(int *version);
/**
* Check pmu charger alarm
*
* @return 0 if there's no charging alarm or pmu access failed
* @return 1 if charger over current or over heat
*/
int pmu_is_charger_alarm(void);
/**
* Get pmu power source
*
* @param ac_good pointer to output value of ac voltage good
* @param battery_good pointer to output value of battery voltage good
* @return EC_SUCCESS if ac_good and battery_good are set
*/
int pmu_get_power_source(int *ac_good, int *battery_good);
/**
* Enable/disable pmu fet
*
* @param fet_id the fet to control
* @param enable 0 to disable the fet, 1 to enable
* @param power_good pointer to value of fet power good
* @return EC_SUCCESS if the communication to pmu succeeded
*/
int pmu_enable_fet(int fet_id, int enable, int *power_good);
/**
* Enable/disable pmu internal charger
*
* @param enable 0 to disable the charger, 1 to enable
* @return EC_SUCCESS if no I2C communication error
*/
int pmu_enable_charger(int enable);
/**
* Set termination current for temperature ranges
*
* @param range T01 T12 T23 T34 T40
* @param current enum termination current, I0250 == 25.0%:
* I0000 I0250 I0375 I0500 I0625 I0750 I0875 I1000
*/
int pmu_set_term_current(enum TPS_TEMPERATURE_RANGE range,
enum TPS_TERMINATION_CURRENT current);
/**
* Set termination voltage for temperature ranges
*
* @param range T01 T12 T23 T34 T40
* @param voltage enum termination voltage, V2050 == 2.05V:
* V2000 V2050 V2075 V2100
*/
int pmu_set_term_voltage(enum TPS_TEMPERATURE_RANGE range,
enum TPS_TERMINATION_VOLTAGE voltage);
/**
* Enable low current charging
*
* @param enable enable/disable low current charging
*/
int pmu_low_current_charging(int enable);
/**
* * Initialize pmu
* */
void pmu_init(void);
#endif /* __CROS_EC_TPSCHROME_H */
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