diff options
Diffstat (limited to 'board/coral/battery.c')
| -rw-r--r-- | board/coral/battery.c | 702 |
1 files changed, 0 insertions, 702 deletions
diff --git a/board/coral/battery.c b/board/coral/battery.c deleted file mode 100644 index ebc8071c0d..0000000000 --- a/board/coral/battery.c +++ /dev/null @@ -1,702 +0,0 @@ -/* Copyright 2017 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_smart.h" -#include "bd9995x.h" -#include "charge_ramp.h" -#include "charge_state.h" -#include "common.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) - -/* Number of writes needed to invoke battery cutoff command */ -#define SHIP_MODE_WRITES 2 - -enum battery_type { - BATTERY_LGC15, - BATTERY_LGC203, - BATTERY_SANYO, - BATTERY_SONY, - BATTERY_PANASONIC, - BATTERY_CELXPERT, - BATTERY_LGC011, - BATTERY_SMP011, - BATTERY_LGC, - BATTERY_BYD, - BATTERY_SIMPLO, - BATTERY_TYPE_COUNT, -}; - -struct ship_mode_info { - const uint8_t reg_addr; - const uint16_t reg_data[SHIP_MODE_WRITES]; -}; - -struct fet_info { - const int mfgacc_support; - const uint8_t reg_addr; - const uint16_t reg_mask; - const uint16_t disconnect_val; -}; - -struct fuel_gauge_info { - const char *manuf_name; - const char *device_name; - const struct ship_mode_info ship_mode; - const struct fet_info fet; -}; - -struct board_batt_params { - const struct fuel_gauge_info fuel_gauge; - const struct battery_info batt_info; -}; - -#define DEFAULT_BATTERY_TYPE BATTERY_SANYO -static enum battery_present batt_pres_prev = BP_NOT_SURE; -static enum battery_type board_battery_type = BATTERY_TYPE_COUNT; - -/* Battery may delay reporting battery present */ -static int battery_report_present = 1; - -static int disch_on_ac; - -/* - * Battery info for all Coral 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 determing 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 appropirate 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 regsister - * address, mask, and disconnect value need to be provided. - */ -static const struct board_batt_params info[] = { - /* LGC AC15A8J Battery Information */ - [BATTERY_LGC15] = { - .fuel_gauge = { - .manuf_name = "LGC", - .device_name = "AC15A8J", - .ship_mode = { - .reg_addr = 0x3A, - .reg_data = { 0xC574, 0xC574 }, - }, - .fet = { - .mfgacc_support = 1, - .reg_addr = 0x0, - .reg_mask = 0x0002, - .disconnect_val = 0x0, - } - }, - .batt_info = { - .voltage_max = TARGET_WITH_MARGIN(13200, 5), - .voltage_normal = 11520, /* 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, - }, - }, - - /* LGC C203-36J Battery Information */ - [BATTERY_LGC203] = { - .fuel_gauge = { - .manuf_name = "AS1GXXc3KB", - .ship_mode = { - .reg_addr = 0x00, - .reg_data = { 0x0010, 0x0010 }, - }, - .fet = { - .mfgacc_support = 1, - .reg_addr = 0x0, - .reg_mask = 0x0002, - .disconnect_val = 0x0, - } - }, - .batt_info = { - .voltage_max = TARGET_WITH_MARGIN(13200, 5), - .voltage_normal = 11520, /* 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 = 60, - }, - }, - - /* SANYO AC15A3J Battery Information */ - [BATTERY_SANYO] = { - .fuel_gauge = { - .manuf_name = "SANYO", - .ship_mode = { - .reg_addr = 0x3A, - .reg_data = { 0xC574, 0xC574 }, - }, - .fet = { - .reg_addr = 0x0, - .reg_mask = 0x4000, - .disconnect_val = 0x0, - } - }, - .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 = 50, - .charging_min_c = 0, - .charging_max_c = 60, - .discharging_min_c = 0, - .discharging_max_c = 60, - }, - }, - - /* Sony Ap13J4K Battery Information */ - [BATTERY_SONY] = { - .fuel_gauge = { - .manuf_name = "SONYCorp", - .ship_mode = { - .reg_addr = 0x3A, - .reg_data = { 0xC574, 0xC574 }, - }, - .fet = { - .reg_addr = 0x0, - .reg_mask = 0x8000, - .disconnect_val = 0x8000, - } - }, - .batt_info = { - .voltage_max = TARGET_WITH_MARGIN(13200, 5), - .voltage_normal = 11400, /* 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, - }, - }, - - /* Panasonic AP1505L 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 = 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 = 50, - .charging_min_c = 0, - .charging_max_c = 60, - .discharging_min_c = 0, - .discharging_max_c = 60, - }, - }, - - /* Celxpert Li7C3PG0 Battery Information */ - [BATTERY_CELXPERT] = { - .fuel_gauge = { - .manuf_name = "Celxpert", - .ship_mode = { - .reg_addr = 0x34, - .reg_data = { 0x0, 0x1000 }, - }, - .fet = { - .reg_addr = 0x0, - .reg_mask = 0x0018, - .disconnect_val = 0x0, - } - }, - .batt_info = { - .voltage_max = TARGET_WITH_MARGIN(13050, 5), - .voltage_normal = 11400, /* mV */ - .voltage_min = 9000, /* mV */ - .precharge_current = 200, /* 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, - }, - }, - - /* LGC\011 L17L3PB0 Battery Information */ - [BATTERY_LGC011] = { - .fuel_gauge = { - .manuf_name = "LGC", - .ship_mode = { - .reg_addr = 0x34, - .reg_data = { 0x0, 0x1000 }, - }, - .fet = { - .reg_addr = 0x0, - .reg_mask = 0x0018, - .disconnect_val = 0x0, - } - }, - .batt_info = { - .voltage_max = TARGET_WITH_MARGIN(13050, 5), - .voltage_normal = 11400, /* mV */ - .voltage_min = 9000, /* mV */ - .precharge_current = 500, /* 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, - }, - }, - - /* SMP\011 L17M3PB0 Battery Information */ - [BATTERY_SMP011] = { - .fuel_gauge = { - .manuf_name = "SMP", - .ship_mode = { - .reg_addr = 0x34, - .reg_data = { 0x0, 0x1000 }, - }, - .fet = { - .reg_addr = 0x0, - .reg_mask = 0x0018, - .disconnect_val = 0x0, - } - }, - .batt_info = { - .voltage_max = TARGET_WITH_MARGIN(13050, 5), - .voltage_normal = 11400, /* mV */ - .voltage_min = 9000, /* mV */ - .precharge_current = 186, /* 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, - }, - }, - - /* LGC DELL Y07HK Battery Information */ - [BATTERY_LGC] = { - .fuel_gauge = { - .manuf_name = "LGC-LGC3.553", - .ship_mode = { - .reg_addr = 0x0, - .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 = 114000, /* 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, - }, - }, - - /* BYD DELL FY8XM6C Battery Information */ - [BATTERY_BYD] = { - .fuel_gauge = { - .manuf_name = "BYD", - .ship_mode = { - .reg_addr = 0x0, - .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 = 114000, /* 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, - }, - }, - - /* Simplo () Battery Information */ - [BATTERY_SIMPLO] = { - .fuel_gauge = { - .manuf_name = "SMP-SDI3.72", - .ship_mode = { - .reg_addr = 0x0, - .reg_data = { 0x10, 0x10 }, - }, - .fet = { - .reg_addr = 0x43, - .reg_mask = 0x0003, - .disconnect_val = 0x0000, - } - }, - .batt_info = { - .voltage_max = TARGET_WITH_MARGIN(13200, 5), - .voltage_normal = 114900, /* 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(info) == BATTERY_TYPE_COUNT); - -static inline const struct board_batt_params *board_get_batt_params(void) -{ - return &info[board_battery_type == BATTERY_TYPE_COUNT ? - DEFAULT_BATTERY_TYPE : board_battery_type]; -} - -/* Get type of the battery connected on the board */ -static int board_get_battery_type(void) -{ - char manu_name[32], device_name[32]; - int i; - - if (!battery_manufacturer_name(manu_name, sizeof(manu_name))) { - for (i = 0; i < BATTERY_TYPE_COUNT; i++) { - if (!strcasecmp(manu_name, - info[i].fuel_gauge.manuf_name)) { - if (info[i].fuel_gauge.device_name == NULL) { - board_battery_type = i; - break; - } else if (!battery_device_name(device_name, - sizeof(device_name))) { - if (!strcasecmp(device_name, - info[i].fuel_gauge.device_name)) { - 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].fuel_gauge.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 &board_get_batt_params()->batt_info; -} - -int board_cut_off_battery(void) -{ - int rv; - int cmd; - int data; - - /* If battery type is unknown can't send ship mode command */ - if (board_get_battery_type() == BATTERY_TYPE_COUNT) - return EC_RES_ERROR; - - /* Ship mode command must be sent twice to take effect */ - cmd = info[board_battery_type].fuel_gauge.ship_mode.reg_addr; - data = info[board_battery_type].fuel_gauge.ship_mode.reg_data[0]; - rv = sb_write(cmd, data); - if (rv != EC_SUCCESS) - return EC_RES_ERROR; - - data = info[board_battery_type].fuel_gauge.ship_mode.reg_data[1]; - rv = sb_write(cmd, 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; - - /* 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; - - /* - * To avoid inrush current from the external charger, enable - * discharge on AC till the new charger is detected and charge - * detect delay has passed. - */ - if (!chg_ramp_is_detected() && curr->batt.state_of_charge > 2) - return 1; - - return 0; -} - -int charger_profile_override(struct charge_state_data *curr) -{ - 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; - } - - return 0; -} - -enum battery_present battery_hw_present(void) -{ - /* The GPIO is low when the battery is physically present */ - return gpio_get_level(GPIO_EC_BATT_PRES_L) ? BP_NO : BP_YES; -} - - -static int battery_init(void) -{ - int batt_status; - - return battery_status(&batt_status) ? 0 : - !!(batt_status & STATUS_INITIALIZED); -} - -/* 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); - -/* - * This function checks the charge/dishcarge FET status bits. Each battery type - * supported provides the register address, mask, and disconnect value for these - * 2 FET status bits. If the FET status matches the disconnected value, then - * BATTERY_DISCONNECTED is returned. This function is required to handle the - * cases when the fuel gauge is awake and will return a non-zero state of - * charge, but is not able yet to provide power (i.e. discharge FET is not - * active). By returning BATTERY_DISCONNECTED the AP will not be powered up - * until either the external charger is able to provided enough power, or - * the battery is able to provide power and thus prevent a brownout when the - * AP is powered on by the EC. - */ -static int battery_check_disconnect(void) -{ - int rv; - int reg; - uint8_t data[6]; - - /* If battery type is not known, can't check CHG/DCHG FETs */ - if (board_battery_type == BATTERY_TYPE_COUNT) { - /* Keep trying to determine the battery type */ - board_init_battery_type(); - if (board_battery_type == BATTERY_TYPE_COUNT) - /* Still don't know, so return here */ - return BATTERY_DISCONNECT_ERROR; - } - - /* Read the status of charge/discharge FETs */ - if (info[board_battery_type].fuel_gauge.fet.mfgacc_support == 1) { - rv = sb_read_mfgacc(PARAM_OPERATION_STATUS, - SB_ALT_MANUFACTURER_ACCESS, data, sizeof(data)); - /* Get the lowest 16bits of the OperationStatus() data */ - reg = data[2] | data[3] << 8; - } else - rv = sb_read(info[board_battery_type].fuel_gauge.fet.reg_addr, - ®); - - if (rv) - return BATTERY_DISCONNECT_ERROR; - - CPRINTS("Battery FET: reg 0x%04x mask 0x%04x disc 0x%04x", reg, - info[board_battery_type].fuel_gauge.fet.reg_mask, - info[board_battery_type].fuel_gauge.fet.disconnect_val); - reg &= info[board_battery_type].fuel_gauge.fet.reg_mask; - if (reg == info[board_battery_type].fuel_gauge.fet.disconnect_val) - return BATTERY_DISCONNECTED; - - return BATTERY_NOT_DISCONNECTED; -} - -/* - * Physical detection of battery. - */ - -enum battery_present battery_is_present(void) -{ - enum battery_present batt_pres; - static int battery_report_present_timer_started; - - /* Get the physical hardware status */ - batt_pres = battery_hw_present(); - - /* - * Make sure battery status is implemented, I2C transactions are - * success & the battery status is Initialized to find out if it - * is a working battery and it is not in the cut-off mode. - * - * FETs are turned off after Power Shutdown time. - * The device will wake up when a voltage is applied to PACK. - * Battery status will be inactive until it is initialized. - */ - if (batt_pres == BP_YES && batt_pres_prev != batt_pres && - (battery_is_cut_off() != BATTERY_CUTOFF_STATE_NORMAL || - battery_check_disconnect() != BATTERY_NOT_DISCONNECTED || - battery_init() == 0)) { - battery_report_present = 0; - /* - * When this path is taken, the _timer_started flag must be - * reset so the 'else if' path will be entered and the - * battery_report_present flag can be set by the deferred - * call. This handles the case of the battery being disconected - * and reconnected while running or if battery_init() returns an - * error due to a failed sb_read. - */ - battery_report_present_timer_started = 0; - } else if (batt_pres == BP_YES && batt_pres_prev == BP_NO && - !battery_report_present_timer_started) { - /* - * Wait 1/2 second before reporting present if it was - * previously reported as not present - */ - battery_report_present_timer_started = 1; - battery_report_present = 0; - hook_call_deferred(&battery_now_present_data, 500 * MSEC); - } - - if (!battery_report_present) - batt_pres = BP_NO; - - batt_pres_prev = batt_pres; - - return batt_pres; -} - -int board_battery_initialized(void) -{ - return battery_hw_present() == batt_pres_prev; -} - - -/* Customs options controllable by host command. */ -#define PARAM_FASTCHARGE (CS_PARAM_CUSTOM_PROFILE_MIN + 0) -#define PARAM_LEARN_MODE 0x10001 -#define PARAM_DISCONNECT_STATE 0x10002 - -enum ec_status charger_profile_override_get_param(uint32_t param, - uint32_t *value) -{ - switch (param) { - case PARAM_LEARN_MODE: - *value = disch_on_ac; - return EC_SUCCESS; - case PARAM_DISCONNECT_STATE: - *value = battery_check_disconnect(); - return EC_SUCCESS; - default: - return EC_RES_INVALID_PARAM; - } -} - -enum ec_status charger_profile_override_set_param(uint32_t param, - uint32_t value) -{ - return EC_RES_INVALID_PARAM; -} |