diff options
Diffstat (limited to 'board/sasukette/battery.c')
| -rw-r--r-- | board/sasukette/battery.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/board/sasukette/battery.c b/board/sasukette/battery.c deleted file mode 100644 index 652c04a651..0000000000 --- a/board/sasukette/battery.c +++ /dev/null @@ -1,177 +0,0 @@ -/* Copyright 2021 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.h" -#include "battery_fuel_gauge.h" -#include "battery_smart.h" -#include "charge_state.h" -#include "common.h" -#include "util.h" - -#define CHARGING_VOLTAGE_MV_SAFE 8400 -#define CHARGING_CURRENT_MA_SAFE 1500 - -/* - * Battery info for all sasukette 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[] = { - /* SDI Battery Information */ - [BATTERY_SDI] = { - .fuel_gauge = { - .manuf_name = "SDI", - .device_name = "4402D51", - .ship_mode = { - .reg_addr = 0x00, - .reg_data = { 0x0010, 0x0010 }, - }, - .fet = { - .mfgacc_support = 0, - .reg_addr = 0x00, - .reg_mask = 0xc000, - .disconnect_val = 0x8000, - .cfet_mask = 0xc000, - .cfet_off_val = 0x2000, - } - }, - .batt_info = { - .voltage_max = 8800, - .voltage_normal = 7700, /* mV */ - .voltage_min = 6000, /* mV */ - .precharge_current = 200, /* mA */ - .start_charging_min_c = 0, - .start_charging_max_c = 45, - .charging_min_c = 0, - .charging_max_c = 50, - .discharging_min_c = -20, - .discharging_max_c = 70, - }, - } -}; -BUILD_ASSERT(ARRAY_SIZE(board_battery_info) == BATTERY_TYPE_COUNT); - -const enum battery_type DEFAULT_BATTERY_TYPE = BATTERY_SDI; - -int charger_profile_override(struct charge_state_data *curr) -{ - int current; - int voltage; - /* battery temp in 0.1 deg C */ - int bat_temp_c; - const struct battery_info *batt_info; - - /* - * Keep track of battery temperature range: - * - * ZONE_0 ZONE_1 ZONE_2 ZONE_3 - * ---+------+--------+--------+------+--- Temperature (C) - * 0 5 12 45 50 - */ - enum { - TEMP_ZONE_0, /* 0 <= bat_temp_c <= 5 */ - TEMP_ZONE_1, /* 5 < bat_temp_c <= 12 */ - TEMP_ZONE_2, /* 12 < bat_temp_c <= 45 */ - TEMP_ZONE_3, /* 45 < bat_temp_c <= 50 */ - TEMP_ZONE_COUNT, - TEMP_OUT_OF_RANGE = TEMP_ZONE_COUNT - } temp_zone; - - /* - * Precharge must be executed when communication is failed on - * dead battery. - */ - if (!(curr->batt.flags & BATT_FLAG_RESPONSIVE)) - return 0; - - current = curr->requested_current; - voltage = curr->requested_voltage; - bat_temp_c = curr->batt.temperature - 2731; - batt_info = battery_get_info(); - - /* - * If the temperature reading is bad, assume the temperature - * is out of allowable range. - */ - if ((curr->batt.flags & BATT_FLAG_BAD_TEMPERATURE) || - (bat_temp_c < 0) || (bat_temp_c > 500)) - temp_zone = TEMP_OUT_OF_RANGE; - else if (bat_temp_c <= 50) - temp_zone = TEMP_ZONE_0; - else if (bat_temp_c <= 120) - temp_zone = TEMP_ZONE_1; - else if (bat_temp_c <= 450) - temp_zone = TEMP_ZONE_2; - else - temp_zone = TEMP_ZONE_3; - - switch (temp_zone) { - case TEMP_ZONE_0: - voltage = CHARGING_VOLTAGE_MV_SAFE; - current = CHARGING_CURRENT_MA_SAFE; - break; - - case TEMP_ZONE_1: - voltage += 100; - current = CHARGING_CURRENT_MA_SAFE; - break; - - case TEMP_ZONE_2: - voltage += 100; - break; - - case TEMP_ZONE_3: - voltage = CHARGING_VOLTAGE_MV_SAFE; - break; - - case TEMP_OUT_OF_RANGE: - /* Don't charge if outside of allowable temperature range */ - current = 0; - voltage = 0; - curr->batt.flags &= ~BATT_FLAG_WANT_CHARGE; - if (curr->state != ST_DISCHARGE) - curr->state = ST_IDLE; - break; - } - - if (voltage > batt_info->voltage_max) - voltage = batt_info->voltage_max; - - curr->requested_voltage = voltage; - curr->requested_current = MIN(curr->requested_current, current); - - return 0; -} - -enum ec_status charger_profile_override_get_param(uint32_t param, - uint32_t *value) -{ - return EC_RES_INVALID_PARAM; -} - -enum ec_status charger_profile_override_set_param(uint32_t param, - uint32_t value) -{ - return EC_RES_INVALID_PARAM; -} |