| /* Copyright 2019 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. |
| * |
| * Renesas (Intersil) ISL-9241 battery charger driver header. |
| */ |
| |
| #ifndef __CROS_EC_ISL9241_H |
| #define __CROS_EC_ISL9241_H |
| |
| #define ISL9241_ADDR_FLAGS 0x09 |
| |
| #define CHARGER_NAME "ISL9241" |
| #define CHARGE_V_MAX 18304 |
| #define CHARGE_V_MIN 64 |
| #define CHARGE_V_STEP 8 |
| #define CHARGE_I_MAX 6140 |
| #define CHARGE_I_MIN 4 |
| #define CHARGE_I_STEP 4 |
| #define INPUT_I_MAX 6140 |
| #define INPUT_I_MIN 4 |
| #define INPUT_I_STEP 4 |
| |
| /* Default minimum VIN voltage controlled by ISL9241_REG_VIN_VOLTAGE */ |
| #define ISL9241_BC12_MIN_VOLTAGE 4096 |
| |
| /* Registers */ |
| |
| /* |
| * ChargeCurrentLimit [12:2] 11-bit (0x0000h = disables fast charging, |
| * trickle charging is allowed) |
| */ |
| #define ISL9241_REG_CHG_CURRENT_LIMIT 0x14 |
| |
| /* MaxSystemVoltage [14:3] 12-bit, (0x0000h = disables switching) */ |
| #define ISL9241_REG_MAX_SYSTEM_VOLTAGE 0x15 |
| |
| #define ISL9241_REG_CONTROL7 0x38 |
| |
| /* Configures various charger options */ |
| #define ISL9241_REG_CONTROL0 0x39 |
| /* 2: Input Voltage Regulation (0 = Enable (default), 1 = Disable) */ |
| #define ISL9241_CONTROL0_INPUT_VTG_REGULATION BIT(2) |
| |
| |
| #define ISL9241_REG_INFORMATION1 0x3A |
| #define ISL9241_REG_ADAPTER_CUR_LIMIT2 0x3B |
| |
| /* Configures various charger options */ |
| #define ISL9241_REG_CONTROL1 0x3C |
| #define ISL9241_CONTROL1_LEARN_MODE BIT(12) |
| |
| /* Configures various charger options */ |
| #define ISL9241_REG_CONTROL2 0x3D |
| /* |
| * 15:13 - Trickle Charging Current |
| * <000> 32mA (do not use) |
| * <001> 64mA |
| * <010> 96mA |
| * <011> 128mA (default) |
| * <100> 160mA |
| * <101> 192mA |
| * <110> 224mA |
| * <111> 256mA |
| */ |
| #define ISL9241_CONTROL2_TRICKLE_CHG_CURR(curr) ((((curr) >> 5) - 1) << 13) |
| /* 12 - Two-Level Adapter Current Limit */ |
| #define ISL9241_CONTROL2_TWO_LEVEL_ADP_CURR BIT(12) |
| /* 10:9 PROCHOT# debounce time in uS */ |
| #define ISL9241_CONTROL2_PROCHOT_DEBOUNCE_1000 (3 << 9) |
| |
| /* MinSystemVoltage [13:6] 8-bit (0x0000h = disables all battery charging) */ |
| #define ISL9241_REG_MIN_SYSTEM_VOLTAGE 0x3E |
| |
| #define ISL9241_REG_ADAPTER_CUR_LIMIT1 0x3F |
| #define ISL9241_REG_ACOK_REFERENCE 0x40 |
| #define ISL9241_REG_CONTROL6 0x43 |
| #define ISL9241_REG_AC_PROCHOT 0x47 |
| #define ISL9241_REG_DC_PROCHOT 0x48 |
| #define ISL9241_REG_OTG_VOLTAGE 0x49 |
| #define ISL9241_REG_OTG_CURRENT 0x4A |
| |
| /* VIN Voltage (ADP Min Voltage) (default 4.096V) */ |
| #define ISL9241_REG_VIN_VOLTAGE 0x4B |
| |
| /* Configures various charger options */ |
| #define ISL9241_REG_CONTROL3 0x4C |
| /* 14: ACLIM Reload (0 - reload, 1 - Do not reload */ |
| #define ISL9241_CONTROL3_ACLIM_RELOAD BIT(14) |
| /* 2: Digital Reset (0 - Idle, 1 - Reset */ |
| #define ISL9241_CONTROL3_DIGITAL_RESET BIT(2) |
| /* 0: Enable ADC (0 - Active when charging, 1 - Active always) */ |
| #define ISL9241_CONTROL3_ENABLE_ADC BIT(0) |
| |
| /* Indicates various charger status */ |
| #define ISL9241_REG_INFORMATION2 0x4D |
| /* 12: BATGONE pin status (0 = Battery is present, 1 = No battery) */ |
| #define ISL9241_INFORMATION2_BATGONE_PIN BIT(12) |
| /* 14: ACOK pin status (0 = No adapter, 1 = Adapter is present) */ |
| #define ISL9241_INFORMATION2_ACOK_PIN BIT(14) |
| |
| #define ISL9241_REG_CONTROL4 0x4E |
| /* 13: Enable VSYS slew rate control (0 - disable, 1 - enable) */ |
| #define ISL9241_CONTROL4_SLEW_RATE_CTRL BIT(13) |
| |
| #define ISL9241_REG_CONTROL5 0x4F |
| #define ISL9241_REG_NTC_ADC_RESULTS 0x80 |
| #define ISL9241_REG_VBAT_ADC_RESULTS 0x81 |
| #define ISL9241_REG_TJ_ADC_RESULTS 0x82 |
| |
| /* ADC result for adapter current measurements, LSB = 22.2mA */ |
| #define ISL9241_REG_IADP_ADC_RESULTS 0x83 |
| |
| #define ISL9241_REG_DC_ADC_RESULTS 0x84 |
| #define ISL9241_REG_CC_ADC_RESULTS 0x85 |
| #define ISL9241_REG_VSYS_ADC_RESULTS 0x86 |
| #define ISL9241_REG_VIN_ADC_RESULTS 0x87 |
| #define ISL9241_REG_INFORMATION3 0x90 |
| #define ISL9241_REG_INFORMATION4 0x91 |
| #define ISL9241_REG_MANUFACTURER_ID 0xFE |
| #define ISL9241_REG_DEVICE_ID 0xFF |
| |
| #define ISL9241_VIN_ADC_BIT_OFFSET 6 |
| #define ISL9241_VIN_ADC_STEP_MV 96 |
| |
| extern const struct charger_drv isl9241_drv; |
| |
| /** |
| * Set AC prochot threshold |
| * |
| * @param chgnum: Index into charger chips |
| * @param ma: AC prochot threshold current in mA, multiple of 128mA |
| * @return EC_SUCCESS or error |
| */ |
| int isl9241_set_ac_prochot(int chgnum, int ma); |
| |
| #endif /* __CROS_EC_ISL9241_H */ |
