diff options
Diffstat (limited to 'board/atlas/battery.c')
| -rw-r--r-- | board/atlas/battery.c | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/board/atlas/battery.c b/board/atlas/battery.c deleted file mode 100644 index fb2fba18be..0000000000 --- a/board/atlas/battery.c +++ /dev/null @@ -1,259 +0,0 @@ -/* Copyright 2018 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. - * - * Placeholder values for temporary battery pack. - */ - -#include "battery.h" -#include "battery_smart.h" -#include "bd9995x.h" -#include "charge_ramp.h" -#include "charge_state.h" -#include "console.h" -#include "ec_commands.h" -#include "extpower.h" -#include "gpio.h" -#include "hooks.h" -#include "i2c.h" -#include "util.h" - -#define CPRINTS(format, args...) cprints(CC_CHARGER, format, ## args) - -/* Shutdown mode parameter to write to manufacturer access register */ -#define SB_SHUTDOWN_DATA 0x0010 - -enum battery_type { - BATTERY_LG, - BATTERY_LISHEN, - BATTERY_SIMPLO, - BATTERY_TYPE_COUNT, -}; - -struct board_batt_params { - const char *manuf_name; - const struct battery_info *batt_info; -}; - -/* - * Set LISHEN as default since the LG precharge current level could cause the - * LISHEN battery to not accept charge when it's recovering from a fully - * discharged state. - */ -#define DEFAULT_BATTERY_TYPE BATTERY_LISHEN -static enum battery_type board_battery_type = BATTERY_TYPE_COUNT; - -/* Battery may delay reporting battery present */ -static int battery_report_present = 1; - -/* - * Battery info for LG A50. Note that the fields start_charging_min/max and - * charging_min/max are not used for the Eve charger. The effective temperature - * limits are given by discharging_min/max_c. - */ -static const struct battery_info batt_info_lg = { - .voltage_max = TARGET_WITH_MARGIN(8800, 5), /* mV */ - .voltage_normal = 7700, - .voltage_min = 6100, /* Add 100mV for charger accuracy */ - .precharge_current = 256, /* mA */ - .start_charging_min_c = 0, - .start_charging_max_c = 46, - .charging_min_c = 10, - .charging_max_c = 50, - .discharging_min_c = 0, - .discharging_max_c = 60, -}; - -/* - * Battery info for LISHEN. Note that the fields start_charging_min/max and - * charging_min/max are not used for the Eve charger. The effective temperature - * limits are given by discharging_min/max_c. - */ -static const struct battery_info batt_info_lishen = { - .voltage_max = TARGET_WITH_MARGIN(8800, 5), /* mV */ - .voltage_normal = 7700, - .voltage_min = 6100, /* Add 100mV for charger accuracy */ - .precharge_current = 256, /* mA */ - .start_charging_min_c = 0, - .start_charging_max_c = 46, - .charging_min_c = 10, - .charging_max_c = 50, - .discharging_min_c = 0, - .discharging_max_c = 60, -}; - -static const struct board_batt_params info[] = { - [BATTERY_LG] = { - .manuf_name = "LG A50", - .batt_info = &batt_info_lg, - }, - - [BATTERY_LISHEN] = { - .manuf_name = "Lishen A50", - .batt_info = &batt_info_lishen, - }, - - [BATTERY_SIMPLO] = { - .manuf_name = "Simplo A50", - .batt_info = &batt_info_lishen, - }, - -}; -BUILD_ASSERT(ARRAY_SIZE(info) == BATTERY_TYPE_COUNT); - -/* Get type of the battery connected on the board */ -static int board_get_battery_type(void) -{ - char name[3]; - int i; - - if (!battery_manufacturer_name(name, sizeof(name))) { - for (i = 0; i < BATTERY_TYPE_COUNT; i++) { - if (!strncasecmp(name, info[i].manuf_name, - ARRAY_SIZE(name)-1)) { - board_battery_type = i; - break; - } - } - } - - return board_battery_type; -} - -/* - * Initialize the battery type for the board. - * - * Very first battery info is called by the charger driver to initialize - * the charger parameters hence initialize the battery type for the board - * as soon as the I2C is initialized. - */ -static void board_init_battery_type(void) -{ - if (board_get_battery_type() != BATTERY_TYPE_COUNT) - CPRINTS("found batt: %s", info[board_battery_type].manuf_name); - else - CPRINTS("battery not found"); -} -DECLARE_HOOK(HOOK_INIT, board_init_battery_type, HOOK_PRIO_INIT_I2C + 1); - -const struct battery_info *battery_get_info(void) -{ - return info[board_battery_type == BATTERY_TYPE_COUNT ? - DEFAULT_BATTERY_TYPE : board_battery_type].batt_info; -} - -int board_cut_off_battery(void) -{ - int rv; - - /* Ship mode command must be sent twice to take effect */ - rv = sb_write(SB_MANUFACTURER_ACCESS, SB_SHUTDOWN_DATA); - if (rv != EC_SUCCESS) - return EC_RES_ERROR; - - rv = sb_write(SB_MANUFACTURER_ACCESS, SB_SHUTDOWN_DATA); - return rv ? EC_RES_ERROR : EC_RES_SUCCESS; -} - -static int charger_should_discharge_on_ac(struct charge_state_data *curr) -{ - /* Can not discharge on AC without battery */ - if (curr->batt.is_present != BP_YES) - return 0; - if (curr->batt.flags & BATT_FLAG_BAD_STATUS) - return 0; - - /* Do not discharge on AC if the battery is still waking up */ - if (!(curr->batt.flags & BATT_FLAG_WANT_CHARGE) && - !(curr->batt.status & STATUS_FULLY_CHARGED)) - return 0; - - /* - * In light load (<450mA being withdrawn from VSYS) the DCDC of the - * charger operates intermittently i.e. DCDC switches continuously - * and then stops to regulate the output voltage and current, and - * sometimes to prevent reverse current from flowing to the input. - * This causes a slight voltage ripple on VSYS that falls in the - * audible noise frequency (single digit kHz range). This small - * ripple generates audible noise in the output ceramic capacitors - * (caps on VSYS and any input of DCDC under VSYS). - * - * To overcome this issue enable the battery learning operation - * and suspend USB charging and DC/DC converter. - */ - if (!battery_is_cut_off() && - !(curr->batt.flags & BATT_FLAG_WANT_CHARGE) && - (curr->batt.status & STATUS_FULLY_CHARGED)) - return 1; - - return 0; -} - -int charger_profile_override(struct charge_state_data *curr) -{ - const struct battery_info *batt_info; - /* battery temp in 0.1 deg C */ - int bat_temp_c; - int disch_on_ac = charger_should_discharge_on_ac(curr); - - charger_discharge_on_ac(disch_on_ac); - if (disch_on_ac) { - curr->state = ST_DISCHARGE; - return 0; - } - - if (curr->batt.flags & BATT_FLAG_BAD_TEMPERATURE) - return 0; - - bat_temp_c = curr->batt.temperature - 2731; - batt_info = battery_get_info(); - /* Don't charge if outside of allowable temperature range */ - if (bat_temp_c >= batt_info->charging_max_c * 10 || - bat_temp_c < batt_info->charging_min_c * 10) { - curr->requested_current = 0; - curr->requested_voltage = 0; - curr->batt.flags &= ~BATT_FLAG_WANT_CHARGE; - curr->state = ST_IDLE; - } - return 0; -} - -/* Customs options controllable by host command. */ -#define PARAM_FASTCHARGE (CS_PARAM_CUSTOM_PROFILE_MIN + 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; -} - -enum battery_present battery_hw_present(void) -{ - /* The GPIO is low when the battery is physically present */ - return gpio_get_level(GPIO_BATTERY_PRESENT_L) ? BP_NO : BP_YES; -} - -/* Allow booting now that the battery has woke up */ -static void battery_now_present(void) -{ - CPRINTS("battery will now report present"); - battery_report_present = 1; -} -DECLARE_DEFERRED(battery_now_present); - -/* - * Physical detection of battery. - */ -enum battery_present battery_is_present(void) -{ - if (battery_hw_present() == BP_NO || battery_is_cut_off()) - return BP_NO; - - return BP_YES; -} |