| /* 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 */ |
