/* Copyright 2022 The ChromiumOS Authors * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. * * Battery pack vendor provided charging profile */ #include "battery_fuel_gauge.h" #include "common.h" #include "compile_time_macros.h" /* * Battery info for all Mithrax battery types. Note that the fields * start_charging_min/max and charging_min/max are not used for the charger. * The effective temperature limits are given by discharging_min/max_c. * * Fuel Gauge (FG) parameters which are used for determining if the battery * is connected, the appropriate ship mode (battery cutoff) command, and the * charge/discharge FETs status. * * Ship mode (battery cutoff) requires 2 writes to the appropriate smart battery * register. For some batteries, the charge/discharge FET bits are set when * charging/discharging is active, in other types, these bits set mean that * charging/discharging is disabled. Therefore, in addition to the mask for * these bits, a disconnect value must be specified. Note that for TI fuel * gauge, the charge/discharge FET status is found in Operation Status (0x54), * but a read of Manufacturer Access (0x00) will return the lower 16 bits of * Operation status which contains the FET status bits. * * The assumption for battery types supported is that the charge/discharge FET * status can be read with a sb_read() command and therefore, only the register * address, mask, and disconnect value need to be provided. */ const struct board_batt_params board_battery_info[] = { [BATTERY_C536] = { /* BQ40Z50 Fuel Gauge */ .fuel_gauge = { .manuf_name = "AS3GXAE3jB", .device_name = "C536-49", .ship_mode = { .reg_addr = 0x00, .reg_data = { 0x0010, 0x0010 }, }, .fet = { .reg_addr = 0x00, .reg_mask = 0x2000, /* XDSG */ .disconnect_val = 0x2000, } }, .batt_info = { .voltage_max = 13200, .voltage_normal = 11800, /* mV */ .voltage_min = 9000, /* mV */ .precharge_current = 256, /* mA */ .start_charging_min_c = 0, .start_charging_max_c = 45, .charging_min_c = 0, .charging_max_c = 60, .discharging_min_c = -20, .discharging_max_c = 60, }, }, [BATTERY_C490] = { .fuel_gauge = { .manuf_name = "AS3GWQd3jB", .device_name = "C490-42", .ship_mode = { .reg_addr = 0x00, .reg_data = { 0x0010, 0x0010 }, }, .fet = { .reg_addr = 0x00, .reg_mask = 0x2000, /* XDSG */ .disconnect_val = 0x2000, } }, .batt_info = { .voltage_max = 13200, .voltage_normal = 11800, /* mV */ .voltage_min = 9000, /* mV */ .precharge_current = 256, /* mA */ .start_charging_min_c = 0, .start_charging_max_c = 45, .charging_min_c = 0, .charging_max_c = 60, .discharging_min_c = -20, .discharging_max_c = 60, }, }, [BATTERY_C340] = { .fuel_gauge = { .manuf_name = "AS3FXXD3KB", .device_name = "C340152", .ship_mode = { .reg_addr = 0x00, .reg_data = { 0x0010, 0x0010 }, }, .fet = { .reg_addr = 0x99, .reg_mask = 0x000C, .disconnect_val = 0x000C, .cfet_mask = 0x0004, .cfet_off_val = 0x0004, } }, .batt_info = { .voltage_max = 13350, .voltage_normal = 11985, /* mV */ .voltage_min = 9000, /* mV */ .precharge_current = 256, /* mA */ .start_charging_min_c = 0, .start_charging_max_c = 45, .charging_min_c = 0, .charging_max_c = 60, .discharging_min_c = -20, .discharging_max_c = 60, }, }, }; BUILD_ASSERT(ARRAY_SIZE(board_battery_info) == BATTERY_TYPE_COUNT); const enum battery_type DEFAULT_BATTERY_TYPE = BATTERY_C536;