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/* Copyright 2017 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.
*
* SILERGY SY21612 buck-boost converter driver.
*/
#ifndef __CROS_EC_SY21612_H
#define __CROS_EC_SY21612_H
#include "gpio.h"
#ifndef SY21612_ADDR_FLAGS
#define SY21612_ADDR_FLAGS 0x71
#endif
enum sy21612_switching_freq {
SY21612_FREQ_250KHZ = 0,
SY21612_FREQ_500KHZ,
SY21612_FREQ_750KHZ,
SY21612_FREQ_1MHZ
};
enum sy21612_vbus_volt {
SY21612_VBUS_5V = 2,
SY21612_VBUS_7V,
SY21612_VBUS_9V,
SY21612_VBUS_12V,
SY21612_VBUS_15V,
SY21612_VBUS_20V,
};
enum sy21612_vbus_adj {
SY21612_VBUS_M2_5 = 0,
SY21612_VBUS_M1_25,
SY21612_VBUS_0,
SY21612_VBUS_1_25,
SY21612_VBUS_2_5,
SY21612_VBUS_3_75,
SY21612_VBUS_5,
};
#define SY21612_CTRL1 0x00
#define SY21612_CTRL1_REG_EN BIT(7)
#define SY21612_CTRL1_LOW_BAT_MASK (7 << 4)
#define SY21612_CTRL1_LOW_BAT_10_2V (0 << 4)
#define SY21612_CTRL1_LOW_BAT_10_7V BIT(4)
#define SY21612_CTRL1_LOW_BAT_11_2V (2 << 4)
#define SY21612_CTRL1_LOW_BAT_11_7V (3 << 4)
#define SY21612_CTRL1_LOW_BAT_22_0V (4 << 4)
#define SY21612_CTRL1_LOW_BAT_22_5V (5 << 4)
#define SY21612_CTRL1_LOW_BAT_23_0V (6 << 4)
#define SY21612_CTRL1_LOW_BAT_23_5V (7 << 4)
#define SY21612_CTRL1_ADC_EN BIT(3)
#define SY21612_CTRL1_ADC_AUTO_MODE BIT(2)
#define SY21612_CTRL1_VBUS_NDISCHG BIT(1)
#define SY21612_CTRL2 0x01
#define SY21612_CTRL2_FREQ_MASK (3 << 6)
#define SY21612_CTRL2_FREQ_SHIFT 6
#define SY21612_CTRL2_FREQ_250K (0 << 6)
#define SY21612_CTRL2_FREQ_500K BIT(6)
#define SY21612_CTRL2_FREQ_750K (2 << 6)
#define SY21612_CTRL2_FREQ_1M (3 << 6)
#define SY21612_CTRL2_VBUS_MASK (7 << 3)
#define SY21612_CTRL2_VBUS_SHIFT 3
#define SY21612_CTRL2_VBUS_5V (2 << 3)
#define SY21612_CTRL2_VBUS_7V (3 << 3)
#define SY21612_CTRL2_VBUS_9V (4 << 3)
#define SY21612_CTRL2_VBUS_12V (5 << 3)
#define SY21612_CTRL2_VBUS_15V (6 << 3)
#define SY21612_CTRL2_VBUS_20V (7 << 3)
#define SY21612_CTRL2_VBUS_ADJ_MASK 7
#define SY21612_CTRL2_VBUS_ADJ_SHIFT 0
#define SY21612_CTRL2_VBUS_ADJ_M2_5 0
#define SY21612_CTRL2_VBUS_ADJ_M1_25 1
#define SY21612_CTRL2_VBUS_ADJ_0 2
#define SY21612_CTRL2_VBUS_ADJ_1_25 3
#define SY21612_CTRL2_VBUS_ADJ_2_5 4
#define SY21612_CTRL2_VBUS_ADJ_3_75 5
#define SY21612_CTRL2_VBUS_ADJ_5 6
#define SY21612_PROT1 0x02
#define SY21612_PROT1_I_THRESH_MASK (7 << 5)
#define SY21612_PROT1_I_THRESH_18MV (0 << 5)
#define SY21612_PROT1_I_THRESH_22MV BIT(5)
#define SY21612_PROT1_I_THRESH_27MV (2 << 5)
#define SY21612_PROT1_I_THRESH_31MV (3 << 5)
#define SY21612_PROT1_I_THRESH_36MV (4 << 5)
#define SY21612_PROT1_I_THRESH_45MV (5 << 5)
#define SY21612_PROT1_I_THRESH_54MV (6 << 5)
#define SY21612_PROT1_I_THRESH_64MV (7 << 5)
#define SY21612_PROT1_OVP_THRESH_MASK (3 << 3)
#define SY21612_PROT1_OVP_THRESH_110 (0 << 3)
#define SY21612_PROT1_OVP_THRESH_115 BIT(3)
#define SY21612_PROT1_OVP_THRESH_120 (2 << 3)
#define SY21612_PROT1_OVP_THRESH_125 (3 << 3)
#define SY21612_PROT1_UVP_THRESH_MASK (3 << 1)
#define SY21612_PROT1_UVP_THRESH_50 (0 << 1)
#define SY21612_PROT1_UVP_THRESH_60 BIT(1)
#define SY21612_PROT1_UVP_THRESH_70 (2 << 1)
#define SY21612_PROT1_UVP_THRESH_80 (3 << 1)
#define SY21612_PROT2 0x03
#define SY21612_PROT2_I_LIMIT_MASK (3 << 6)
#define SY21612_PROT2_I_LIMIT_6A (0 << 6)
#define SY21612_PROT2_I_LIMIT_8A (2 << 6)
#define SY21612_PROT2_I_LIMIT_10A (3 << 6)
#define SY21612_PROT2_OCP_AUTORECOVER BIT(5)
#define SY21612_PROT2_UVP_AUTORECOVER BIT(4)
#define SY21612_PROT2_OTP_AUTORECOVER BIT(3)
#define SY21612_PROT2_SINK_MODE BIT(2)
#define SY21612_STATE 0x04
#define SY21612_STATE_POWER_GOOD BIT(7)
#define SY21612_STATE_VBAT_LT_VBUS BIT(6)
#define SY21612_STATE_VBAT_LOW BIT(5)
#define SY21612_INT 0x05
#define SY21612_INT_ADC_READY BIT(7)
#define SY21612_INT_VBUS_OCP BIT(6)
#define SY21612_INT_INDUCTOR_OCP BIT(5)
#define SY21612_INT_UVP BIT(4)
#define SY21612_INT_OTP BIT(3)
/* Battery voltage range: 0 ~ 25V */
#define SY21612_VBAT_VOLT 0x06
/* VBUS voltage range: 0 ~ 25V */
#define SY21612_VBUS_VOLT 0x07
/* Output current sense voltage range 0 ~ 67mV */
#define SY21612_VBUS_CURRENT 0x08
/* Enable or disable the regulator */
int sy21612_enable_regulator(int enable);
/* Enable internal adc */
int sy21612_enable_adc(int enable);
/* Set ADC mode to single or auto */
int sy21612_set_adc_mode(int auto_mode);
/* Enable VBUS auto discharge when regulator is disabled */
int sy21612_set_vbus_discharge(int auto_discharge);
/* Set buck-boost switching frequency */
int sy21612_set_switching_freq(enum sy21612_switching_freq freq);
/* Set VBUS output voltage */
int sy21612_set_vbus_volt(enum sy21612_vbus_volt volt);
/* Adjust VBUS output voltage */
int sy21612_set_vbus_adj(enum sy21612_vbus_adj adj);
/* Set bidirection mode */
int sy21612_set_sink_mode(int sink_mode);
/* Get power good status */
int sy21612_is_power_good(void);
/* Read and clear interrupt flags */
int sy21612_read_clear_int(void);
/* Get VBUS voltage in mV */
int sy21612_get_vbat_voltage(void);
/* Get VBUS voltage in mV */
int sy21612_get_vbus_voltage(void);
/* Get VBUS current in mA */
int sy21612_get_vbus_current(void);
/* Interrupt handler */
void sy21612_int(enum gpio_signal signal);
#endif /* __CROS_EC_SY21612_H */
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