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Diffstat (limited to 'board/terrador/battery.c')
-rw-r--r-- | board/terrador/battery.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/board/terrador/battery.c b/board/terrador/battery.c new file mode 100644 index 0000000000..9b356a8efd --- /dev/null +++ b/board/terrador/battery.c @@ -0,0 +1,68 @@ +/* Copyright 2020 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 Volteer 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[] = { + /* LGC\011 L17L3PB0 Battery Information */ + /* + * Battery info provided by ODM on b/143477210, comment #11 + */ + [BATTERY_LGC011] = { + .fuel_gauge = { + .manuf_name = "LGC", + .ship_mode = { + .reg_addr = 0x00, + .reg_data = { 0x10, 0x10 }, + }, + .fet = { + .reg_addr = 0x0, + .reg_mask = 0x6000, + .disconnect_val = 0x6000, + } + }, + .batt_info = { + .voltage_max = TARGET_WITH_MARGIN(13200, 5), + .voltage_normal = 11550, /* 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 = 0, + .discharging_max_c = 75, + }, + }, +}; +BUILD_ASSERT(ARRAY_SIZE(board_battery_info) == BATTERY_TYPE_COUNT); + +const enum battery_type DEFAULT_BATTERY_TYPE = BATTERY_LGC011; |