diff options
Diffstat (limited to 'driver/battery/mm8013.c')
| -rw-r--r-- | driver/battery/mm8013.c | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/driver/battery/mm8013.c b/driver/battery/mm8013.c deleted file mode 100644 index 04503da2f5..0000000000 --- a/driver/battery/mm8013.c +++ /dev/null @@ -1,250 +0,0 @@ -/* 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 driver for MM8013. - */ - -#include "battery.h" -#include "battery_smart.h" -#include "console.h" -#include "i2c.h" -#include "mm8013.h" -#include "timer.h" -#include "util.h" - -#define BATTERY_PACK_INFO_LENGTH 8 - -/* MM8013 requires a 100us wait time after a read operation. */ -#define I2C_WAIT_TIME 100 - -static int mm8013_read16(int offset, int *data) -{ - int rv; - - *data = 0; - rv = i2c_read16(I2C_PORT_BATTERY, MM8013_ADDR_FLAGS, offset, data); - usleep(I2C_WAIT_TIME); - if (rv) - return rv; - return EC_SUCCESS; -} - -static int mm8013_read_block(int offset, uint8_t *data, int len) -{ - int rv; - - rv = i2c_read_block(I2C_PORT_BATTERY, MM8013_ADDR_FLAGS, - offset, data, len); - usleep(I2C_WAIT_TIME); - if (rv) - return rv; - return EC_SUCCESS; -} - -static int battery_flag(int *flag) -{ - return mm8013_read16(REG_FLAGS, flag); -} - -static int battery_current(int *current) -{ - int16_t tmp; - int rv; - - rv = mm8013_read_block(REG_AVERAGE_CURRENT, - (uint8_t *)&tmp, sizeof(int16_t)); - if (rv) - return rv; - *current = tmp; - - return EC_SUCCESS; -} - -int battery_device_name(char *device_name, int buf_size) -{ - int rv; - char out_buf[BATTERY_PACK_INFO_LENGTH + 1]; - - rv = mm8013_read_block(REG_PRODUCT_INFORMATION, - (uint8_t *)out_buf, BATTERY_PACK_INFO_LENGTH); - if (rv) - return rv; - - out_buf[BATTERY_PACK_INFO_LENGTH] = '\0'; - strzcpy(device_name, out_buf, buf_size); - - return EC_SUCCESS; -} - -int battery_state_of_charge_abs(int *percent) -{ - return mm8013_read16(REG_STATE_OF_CHARGE, percent); -} - -int battery_remaining_capacity(int *capacity) -{ - return mm8013_read16(REG_REMAINING_CAPACITY, capacity); -} - -int battery_full_charge_capacity(int *capacity) -{ - return mm8013_read16(REG_FULL_CHARGE_CAPACITY, capacity); -} - -int battery_time_to_empty(int *minutes) -{ - return mm8013_read16(REG_AVERAGE_TIME_TO_EMPTY, minutes); -} - -int battery_time_to_full(int *minutes) -{ - return mm8013_read16(REG_AVERAGE_TIME_TO_FULL, minutes); -} - -int battery_cycle_count(int *count) -{ - return mm8013_read16(REG_CYCLE_COUNT, count); -} - -int battery_design_capacity(int *capacity) -{ - return mm8013_read16(REG_DESIGN_CAPACITY, capacity); -} - -int battery_time_at_rate(int rate, int *minutes) -{ - return EC_ERROR_UNIMPLEMENTED; -} - -int battery_device_chemistry(char *dest, int size) -{ - strzcpy(dest, "<unkn>", size); - - return EC_SUCCESS; -} - -int battery_serial_number(int *serial) -{ - *serial = 0xFFFFFFFF; - return EC_SUCCESS; -} - -int battery_manufacture_date(int *year, int *month, int *day) -{ - return EC_ERROR_UNIMPLEMENTED; -} - -int battery_design_voltage(int *voltage) -{ - *voltage = battery_get_info()->voltage_normal; - - return EC_SUCCESS; -} - -int battery_get_mode(int *mode) -{ - return EC_ERROR_UNIMPLEMENTED; -} - -int battery_status(int *status) -{ - int rv; - int flag = 0; - - *status = 0; - - rv = battery_flag(&flag); - if (rv) - return rv; - - if (flag & (MM8013_FLAG_OTC | MM8013_FLAG_OTD)) - *status |= STATUS_OVERTEMP_ALARM; - if (flag & MM8013_FLAG_FC) - *status |= STATUS_FULLY_CHARGED; - if (flag & MM8013_FLAG_DSG) - *status |= STATUS_DISCHARGING; - if (flag & MM8013_FLAG_BATHI) - *status |= STATUS_OVERCHARGED_ALARM; - - return EC_SUCCESS; -} - -enum battery_present battery_is_present(void) -{ - int temp; - - if (mm8013_read16(REG_TEMPERATURE, &temp)) - return BP_NO; - return BP_YES; -} - -void battery_get_params(struct batt_params *batt) -{ - struct batt_params batt_new = {0}; - int flag = 0; - - /* - * Assuming the battery is responsive as long as - * mm8013 finds battery is present. - */ - batt_new.is_present = battery_is_present(); - - if (batt_new.is_present == BP_YES) - batt_new.flags |= BATT_FLAG_RESPONSIVE; - else if (batt_new.is_present == BP_NO) - /* Battery is not present, gauge won't report useful info. */ - goto batt_out; - - if (mm8013_read16(REG_TEMPERATURE, &batt_new.temperature)) - batt_new.flags |= BATT_FLAG_BAD_TEMPERATURE; - - if (mm8013_read16(REG_STATE_OF_CHARGE, &batt_new.state_of_charge)) - batt_new.flags |= BATT_FLAG_BAD_STATE_OF_CHARGE; - - if (mm8013_read16(REG_VOLTAGE, &batt_new.voltage)) - batt_new.flags |= BATT_FLAG_BAD_VOLTAGE; - - if (battery_current(&batt_new.current)) - batt_new.flags |= BATT_FLAG_BAD_CURRENT; - - batt_new.desired_voltage = battery_get_info()->voltage_max; - batt_new.desired_current = BATTERY_DESIRED_CHARGING_CURRENT; - - if (battery_remaining_capacity(&batt_new.remaining_capacity)) - batt_new.flags |= BATT_FLAG_BAD_REMAINING_CAPACITY; - - if (battery_full_charge_capacity(&batt_new.full_capacity)) - batt_new.flags |= BATT_FLAG_BAD_FULL_CAPACITY; - - if (battery_status(&batt_new.status)) - batt_new.flags |= BATT_FLAG_BAD_STATUS; - - if (!battery_flag(&flag) && (flag & MM8013_FLAG_CHG)) - batt_new.flags |= BATT_FLAG_WANT_CHARGE; - -batt_out: - /* Update visible battery parameters */ - memcpy(batt, &batt_new, sizeof(*batt)); -} - -#ifdef CONFIG_CMD_PWR_AVG -int battery_get_avg_current(void) -{ - /* TODO(crbug.com/752320) implement this */ - return -EC_ERROR_UNIMPLEMENTED; -} - -int battery_get_avg_voltage(void) -{ - /* TODO(crbug.com/752320) implement this */ - return -EC_ERROR_UNIMPLEMENTED; -} -#endif /* CONFIG_CMD_PWR_AVG */ - -/* Wait until battery is totally stable. */ -int battery_wait_for_stable(void) -{ - /* TODO(phoenixshen): Implement this function. */ - return EC_SUCCESS; -} |