/* 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. * * Battery pack vendor provided charging profile */ #include "battery_fuel_gauge.h" #include "common.h" #include "util.h" /* * Battery info for all Zork 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[] = { /* Panasonic AP15O5L Battery Information */ [BATTERY_PANASONIC] = { .fuel_gauge = { .manuf_name = "PANASONIC", .ship_mode = { .reg_addr = 0x3A, .reg_data = { 0xC574, 0xC574 }, }, .fet = { .reg_addr = 0x0, .reg_mask = 0x4000, .disconnect_val = 0x0, } }, .batt_info = { .voltage_max = 13200, .voltage_normal = 11550, /* mV */ .voltage_min = 9000, /* mV */ .precharge_current = 256, /* mA */ .start_charging_min_c = 0, .start_charging_max_c = 50, .charging_min_c = 0, .charging_max_c = 60, .discharging_min_c = 0, .discharging_max_c = 60, }, }, }; BUILD_ASSERT(ARRAY_SIZE(board_battery_info) == BATTERY_TYPE_COUNT); const enum battery_type DEFAULT_BATTERY_TYPE = BATTERY_PANASONIC;