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/* Copyright (c) 2012 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.
*/
/* Charger/battery debug command module for Chrome EC */
/* TODO: remove this or merge into charger/battery modules
* once charger and battery modules are ready.
*/
#include "charger.h"
#include "board.h"
#include "i2c.h"
#include "console.h"
#include "uart.h"
#include "util.h"
/* Address of battery charger */
#define CHARGER_ADDR 0x12
/* Address of battery */
#define BATTERY_ADDR 0x16
/*****************************************************************************/
/* Console commands */
static int command_charger(int argc, char **argv)
{
int rv;
int d;
uart_puts("Reading battery charger...\n");
rv = i2c_read16(I2C_PORT_CHARGER, CHARGER_ADDR, 0xfe, &d);
if (rv)
return rv;
uart_printf(" Manufacturer ID: 0x%04x\n", d);
rv = i2c_read16(I2C_PORT_CHARGER, CHARGER_ADDR, 0xff, &d);
uart_printf(" Device ID: 0x%04x\n", d);
rv = i2c_read16(I2C_PORT_CHARGER, CHARGER_ADDR, 0x12, &d);
uart_printf(" Option: 0x%04x\n", d);
rv = i2c_read16(I2C_PORT_CHARGER, CHARGER_ADDR, 0x14, &d);
uart_printf(" Charge current: 0x%04x\n", d);
rv = i2c_read16(I2C_PORT_CHARGER, CHARGER_ADDR, 0x15, &d);
uart_printf(" Charge voltage: 0x%04x\n", d);
rv = i2c_read16(I2C_PORT_CHARGER, CHARGER_ADDR, 0x3f, &d);
uart_printf(" Input current: 0x%04x\n", d);
return EC_SUCCESS;
}
DECLARE_CONSOLE_COMMAND(charger, command_charger);
static int command_battery(int argc, char **argv)
{
int rv;
int d;
uart_puts("Reading battery...\n");
rv = i2c_read16(I2C_PORT_BATTERY, BATTERY_ADDR, 0x08, &d);
if (rv)
return rv;
uart_printf(" Temperature: 0x%04x = %d C\n",
d, (d-2731)/10);
rv = i2c_read16(I2C_PORT_BATTERY, BATTERY_ADDR, 0x09, &d);
uart_printf(" Voltage: 0x%04x = %d mV\n", d, d);
rv = i2c_read16(I2C_PORT_BATTERY, BATTERY_ADDR, 0x0f, &d);
uart_printf(" Remaining capacity: 0x%04x = %d mAh\n", d, d);
rv = i2c_read16(I2C_PORT_BATTERY, BATTERY_ADDR, 0x10, &d);
uart_printf(" Full charge capacity: 0x%04x = %d mAh\n", d, d);
rv = i2c_read16(I2C_PORT_BATTERY, BATTERY_ADDR, 0x14, &d);
uart_printf(" Desired charge current: 0x%04x = %d mA\n", d, d);
rv = i2c_read16(I2C_PORT_BATTERY, BATTERY_ADDR, 0x15, &d);
uart_printf(" Desired charge voltage: 0x%04x = %d mV\n", d, d);
return EC_SUCCESS;
}
DECLARE_CONSOLE_COMMAND(battery, command_battery);
/*****************************************************************************/
/* Initialization */
int charger_init(void)
{
return EC_SUCCESS;
}
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