664927c86e
Fix the minor style issue and remove unnecessary cast Signed-off-by: chao an <anchao@xiaomi.com>
722 lines
18 KiB
C
722 lines
18 KiB
C
/****************************************************************************
|
|
* drivers/power/battery/axp202.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include <sys/types.h>
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <errno.h>
|
|
#include <debug.h>
|
|
#include <assert.h>
|
|
#include <nuttx/kmalloc.h>
|
|
#include <nuttx/i2c/i2c_master.h>
|
|
#include <nuttx/power/battery_charger.h>
|
|
#include <nuttx/power/battery_ioctl.h>
|
|
#include <nuttx/power/axp202.h>
|
|
|
|
#if defined(CONFIG_I2C) && defined(CONFIG_I2C_AXP202)
|
|
|
|
/****************************************************************************
|
|
* Private type
|
|
****************************************************************************/
|
|
|
|
struct axp202_dev_s
|
|
{
|
|
/* The common part of the battery driver visible to the upper-half driver */
|
|
|
|
struct battery_charger_dev_s dev; /* Battery operations */
|
|
|
|
/* Data fields specific to the lower half axp202 driver follow */
|
|
|
|
FAR struct i2c_master_s *i2c; /* I2C interface */
|
|
uint8_t addr; /* I2C address */
|
|
uint32_t frequency; /* I2C frequency */
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Private Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/* I2C support */
|
|
|
|
static int axp202_getreg8(FAR struct axp202_dev_s *priv, uint8_t regaddr,
|
|
FAR uint8_t *regval);
|
|
static int axp202_putreg8(FAR struct axp202_dev_s *priv, uint8_t regaddr,
|
|
uint8_t regval);
|
|
|
|
/* Battery driver lower half methods */
|
|
|
|
static int axp202_state(FAR struct battery_charger_dev_s *dev,
|
|
FAR int * status);
|
|
static int axp202_health(FAR struct battery_charger_dev_s *dev,
|
|
FAR int * health);
|
|
static int axp202_online(FAR struct battery_charger_dev_s *dev,
|
|
FAR bool * status);
|
|
static int axp202_voltage(FAR struct battery_charger_dev_s *dev, int value);
|
|
static int axp202_current(FAR struct battery_charger_dev_s *dev, int value);
|
|
static int axp202_input_current(FAR struct battery_charger_dev_s *dev,
|
|
int value);
|
|
static int axp202_operate(FAR struct battery_charger_dev_s *dev,
|
|
uintptr_t param);
|
|
|
|
static int axp202_set_ldo2_valtage(FAR struct axp202_dev_s *dev,
|
|
int voltage);
|
|
static int axp202_set_ldo3_valtage(FAR struct axp202_dev_s *dev,
|
|
int voltage);
|
|
static int axp202_set_ldo4_valtage(FAR struct axp202_dev_s *dev,
|
|
int voltage);
|
|
static int axp202_set_dc2_valtage(FAR struct axp202_dev_s *dev,
|
|
int voltage);
|
|
static int axp202_set_dc2_valtage(FAR struct axp202_dev_s *dev,
|
|
int voltage);
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
static const struct battery_charger_operations_s g_axp202ops =
|
|
{
|
|
axp202_state,
|
|
axp202_health,
|
|
axp202_online,
|
|
axp202_voltage,
|
|
axp202_current,
|
|
axp202_input_current,
|
|
axp202_operate
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
static int axp202_getreg8(FAR struct axp202_dev_s *priv, uint8_t regaddr,
|
|
FAR uint8_t *regval)
|
|
{
|
|
struct i2c_config_s config;
|
|
int ret;
|
|
|
|
/* Sanity check */
|
|
|
|
DEBUGASSERT(priv != NULL);
|
|
DEBUGASSERT(regval != NULL);
|
|
|
|
/* Set up the I2C configuration */
|
|
|
|
config.frequency = priv->frequency;
|
|
config.address = priv->addr;
|
|
config.addrlen = 7;
|
|
|
|
/* Write the register address */
|
|
|
|
ret = i2c_write(priv->i2c, &config, ®addr, sizeof(regaddr));
|
|
if (ret < 0)
|
|
{
|
|
snerr("ERROR: i2c_write failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
/* Restart and read 8 bits from the register */
|
|
|
|
ret = i2c_read(priv->i2c, &config, regval, sizeof(*regval));
|
|
if (ret < 0)
|
|
{
|
|
snerr("ERROR: i2c_read failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
sninfo("addr: %02x value: %02x\n", regaddr, *regval);
|
|
|
|
return OK;
|
|
}
|
|
|
|
static int axp202_putreg8(FAR struct axp202_dev_s *priv, uint8_t regaddr,
|
|
uint8_t regval)
|
|
{
|
|
struct i2c_config_s config;
|
|
uint8_t buffer[2];
|
|
int ret;
|
|
|
|
/* Sanity check */
|
|
|
|
DEBUGASSERT(priv != NULL);
|
|
|
|
/* Set up a 2-byte message to send */
|
|
|
|
buffer[0] = regaddr;
|
|
buffer[1] = regval;
|
|
|
|
/* Set up the I2C configuration */
|
|
|
|
config.frequency = priv->frequency;
|
|
config.address = priv->addr;
|
|
config.addrlen = 7;
|
|
|
|
/* Write the register address followed by the data (no RESTART) */
|
|
|
|
ret = i2c_write(priv->i2c, &config, buffer, sizeof(buffer));
|
|
if (ret < 0)
|
|
{
|
|
snerr("ERROR: i2c_write failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
sninfo("addr: %02x value: %02x\n", regaddr, regval);
|
|
|
|
return OK;
|
|
}
|
|
|
|
static int axp202_state(FAR struct battery_charger_dev_s *dev,
|
|
FAR int *status)
|
|
{
|
|
FAR struct axp202_dev_s *priv = (FAR struct axp202_dev_s *)dev;
|
|
uint8_t val = 0;
|
|
int ret = 0;
|
|
|
|
/* Only a few of the possible battery states are supported by this driver:
|
|
*
|
|
* BATTERY_UNKNOWN - Returned on error conditions
|
|
* BATTERY_IDLE - This is what will usually be reported
|
|
* BATTERY_FULL - This will be reported if the SoC is greater than 95%
|
|
* BATTERY_CHARGING and BATTERY_DISCHARGING - I don't think this hardware
|
|
* knows anything about current (charging or dischargin).
|
|
*
|
|
*/
|
|
|
|
ret = axp202_getreg8(priv, AXP202_MODE_CHGSTATUS, &val);
|
|
|
|
if (ret != OK)
|
|
{
|
|
*status = BATTERY_UNKNOWN;
|
|
return ret;
|
|
}
|
|
|
|
if (val & (1 << 6))
|
|
{
|
|
*status = BATTERY_CHARGING;
|
|
}
|
|
else
|
|
{
|
|
*status = BATTERY_DISCHARGING;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: axp202_health
|
|
*
|
|
* Description:
|
|
* Return the current battery health state
|
|
*
|
|
* Note: if more than one fault happened the user needs to call this ioctl
|
|
* again to read a new fault, repeat until receive a BATTERY_HEALTH_GOOD.
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int axp202_health(FAR struct battery_charger_dev_s *dev,
|
|
FAR int * health)
|
|
{
|
|
FAR struct axp202_dev_s *priv = (FAR struct axp202_dev_s *)dev;
|
|
uint8_t val = 0;
|
|
int ret = 0;
|
|
|
|
/* Only a few of the possible states are supported by this driver:
|
|
* BATTERY_HEALTH_UNKNOWN - health state is not known
|
|
* BATTERY_HEALTH_GOOD - is in good condiction
|
|
* BATTERY_HEALTH_DEAD - is dead, nothing we can do
|
|
* BATTERY_HEALTH_OVERHEAT - is over recommended temperature
|
|
* BATTERY_HEALTH_OVERVOLTAGE - voltage is over recommended level
|
|
* BATTERY_HEALTH_UNSPEC_FAIL - charger reported an unspected failure
|
|
* BATTERY_HEALTH_COLD - is under recommended temperature
|
|
* BATTERY_HEALTH_WD_TMR_EXP - WatchDog Timer Expired
|
|
* BATTERY_HEALTH_SAFE_TMR_EXP - Safety Timer Expired
|
|
* BATTERY_HEALTH_DISCONNECTED - is not connected
|
|
*/
|
|
|
|
ret = axp202_getreg8(priv, AXP202_MODE_CHGSTATUS, &val);
|
|
if (ret < 0)
|
|
{
|
|
*health = BATTERY_HEALTH_UNKNOWN;
|
|
return ret;
|
|
}
|
|
|
|
if (val & (1 << 7))
|
|
{
|
|
*health = BATTERY_HEALTH_OVERHEAT;
|
|
}
|
|
else if (!(val & (1 << 5)))
|
|
{
|
|
*health = BATTERY_HEALTH_DISCONNECTED;
|
|
}
|
|
else
|
|
{
|
|
*health = BATTERY_HEALTH_GOOD;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: axp202_online
|
|
*
|
|
* Description:
|
|
* Return true if the batter is online
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int axp202_online(FAR struct battery_charger_dev_s *dev,
|
|
FAR bool *status)
|
|
{
|
|
FAR struct axp202_dev_s *priv = (FAR struct axp202_dev_s *)dev;
|
|
uint8_t val = 0;
|
|
int ret = 0;
|
|
|
|
ret = axp202_getreg8(priv, AXP202_MODE_CHGSTATUS, &val);
|
|
|
|
if (ret != OK)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
if (val & (1 << 5))
|
|
{
|
|
*status = true;
|
|
}
|
|
else
|
|
{
|
|
*status = false;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: axp202_voltage
|
|
*
|
|
* Description:
|
|
* Set battery charger voltage
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int axp202_voltage(FAR struct battery_charger_dev_s *dev, int value)
|
|
{
|
|
FAR struct axp202_dev_s *priv = (FAR struct axp202_dev_s *)dev;
|
|
int ret;
|
|
uint8_t reg = 0;
|
|
|
|
/* Set voltage to battery charger */
|
|
|
|
ret = axp202_getreg8(priv, AXP202_CHARGE1, ®);
|
|
|
|
if (ret != OK)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
reg &= ~(3 << 5);
|
|
|
|
switch (value)
|
|
{
|
|
case 4100:
|
|
reg |= (0 << 5);
|
|
break;
|
|
|
|
case 4150:
|
|
reg |= (1 << 5);
|
|
break;
|
|
|
|
case 4200:
|
|
reg |= (2 << 5);
|
|
break;
|
|
|
|
case 4360:
|
|
reg |= (3 << 5);
|
|
break;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = axp202_putreg8(priv, AXP202_CHARGE1, reg);
|
|
if (ret != OK)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: axp202_current
|
|
*
|
|
* Description:
|
|
* Set the battery charger current rate for charging
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int axp202_current(FAR struct battery_charger_dev_s *dev, int value)
|
|
{
|
|
FAR struct axp202_dev_s *priv = (FAR struct axp202_dev_s *)dev;
|
|
int ret;
|
|
uint8_t reg = 0;
|
|
|
|
/* Set current to battery charger */
|
|
|
|
ret = axp202_getreg8(priv, AXP202_CHARGE1, ®);
|
|
|
|
if (ret != OK)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Charge current setting
|
|
* Icharge= [300+(Bit3-0)*100] mA
|
|
*/
|
|
|
|
value = (value - 300) / 100;
|
|
value &= 0x0f;
|
|
|
|
reg &= 0xf0;
|
|
reg |= value;
|
|
|
|
ret = axp202_putreg8(priv, AXP202_CHARGE1, reg);
|
|
if (ret != OK)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: axp202_input_current
|
|
*
|
|
* Description:
|
|
* Set the power-supply input current limit
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int axp202_input_current(FAR struct battery_charger_dev_s *dev,
|
|
int value)
|
|
{
|
|
FAR struct axp202_dev_s *priv = (FAR struct axp202_dev_s *)dev;
|
|
int ret;
|
|
uint8_t reg = 0;
|
|
|
|
ret = axp202_getreg8(priv, AXP202_IPS_SET, ®);
|
|
|
|
if (ret != OK)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
reg &= ~(3 << 0);
|
|
|
|
switch (value)
|
|
{
|
|
case BATTERY_INPUT_CURRENT_EXT_LIM:
|
|
reg |= (3 << 0);
|
|
break;
|
|
|
|
case 900:
|
|
reg |= (0 << 0);
|
|
break;
|
|
|
|
case 500:
|
|
reg |= (1 << 0);
|
|
break;
|
|
|
|
case 100:
|
|
reg |= (2 << 0);
|
|
break;
|
|
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = axp202_putreg8(priv, AXP202_IPS_SET, reg);
|
|
if (ret != OK)
|
|
{
|
|
return ret;
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: axp202_operate
|
|
*
|
|
* Description:
|
|
* Do miscellaneous battery ioctl()
|
|
*
|
|
****************************************************************************/
|
|
|
|
static int axp202_operate(FAR struct battery_charger_dev_s *dev,
|
|
uintptr_t param)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static int axp202_set_ldo2_valtage(FAR struct axp202_dev_s *priv,
|
|
int voltage)
|
|
{
|
|
uint8_t reg = 0;
|
|
|
|
axp202_getreg8(priv, AXP202_LDO234_DC23_CTL, ®);
|
|
|
|
if (voltage == 0)
|
|
{
|
|
reg &= ~(1 << 2);
|
|
}
|
|
else
|
|
{
|
|
reg |= (1 << 2);
|
|
}
|
|
|
|
axp202_putreg8(priv, AXP202_LDO234_DC23_CTL, reg);
|
|
|
|
if (voltage != 0)
|
|
{
|
|
axp202_getreg8(priv, AXP202_LDO24OUT_VOL, ®);
|
|
reg &= ~(0xf << 4);
|
|
reg |= ((((voltage - 1800) / 100) & 0x0f) << 4);
|
|
axp202_putreg8(priv, AXP202_LDO24OUT_VOL, reg);
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
static int axp202_set_ldo3_valtage(FAR struct axp202_dev_s *priv,
|
|
int voltage)
|
|
{
|
|
uint8_t reg = 0;
|
|
|
|
axp202_getreg8(priv, AXP202_LDO234_DC23_CTL, ®);
|
|
|
|
if (voltage == 0)
|
|
{
|
|
reg &= ~(1 << 6);
|
|
}
|
|
else
|
|
{
|
|
reg |= (1 << 6);
|
|
}
|
|
|
|
axp202_putreg8(priv, AXP202_LDO234_DC23_CTL, reg);
|
|
|
|
if (voltage != 0)
|
|
{
|
|
axp202_getreg8(priv, AXP202_LDO3OUT_VOL, ®);
|
|
reg &= ~(0xf << 4);
|
|
reg |= ((((voltage - 700) / 25) & 0x7f) << 0);
|
|
axp202_putreg8(priv, AXP202_LDO3OUT_VOL, reg);
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
static int axp202_set_ldo4_valtage(FAR struct axp202_dev_s *priv,
|
|
int voltage)
|
|
{
|
|
uint8_t reg = 0;
|
|
|
|
axp202_getreg8(priv, AXP202_LDO234_DC23_CTL, ®);
|
|
|
|
if (voltage == 0)
|
|
{
|
|
reg &= ~(1 << 3);
|
|
}
|
|
else
|
|
{
|
|
reg |= (1 << 3);
|
|
}
|
|
|
|
axp202_putreg8(priv, AXP202_LDO234_DC23_CTL, reg);
|
|
|
|
if (voltage != 0)
|
|
{
|
|
axp202_getreg8(priv, AXP202_LDO24OUT_VOL, ®);
|
|
reg &= ~(0xf << 0);
|
|
|
|
switch (voltage)
|
|
{
|
|
case 1250:
|
|
reg |= 0; break;
|
|
case 1300:
|
|
reg |= 1; break;
|
|
case 1400:
|
|
reg |= 2; break;
|
|
case 1500:
|
|
reg |= 3; break;
|
|
case 1600:
|
|
reg |= 4; break;
|
|
case 1700:
|
|
reg |= 5; break;
|
|
case 1800:
|
|
reg |= 6; break;
|
|
case 1900:
|
|
reg |= 7; break;
|
|
case 2000:
|
|
reg |= 8; break;
|
|
case 2500:
|
|
reg |= 9; break;
|
|
case 2700:
|
|
reg |= 10; break;
|
|
case 2800:
|
|
reg |= 11; break;
|
|
case 3000:
|
|
reg |= 12; break;
|
|
case 3100:
|
|
reg |= 13; break;
|
|
case 3200:
|
|
reg |= 14; break;
|
|
case 3300:
|
|
reg |= 15; break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
axp202_putreg8(priv, AXP202_LDO24OUT_VOL, reg);
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
static int axp202_set_dc2_valtage(FAR struct axp202_dev_s *priv,
|
|
int voltage)
|
|
{
|
|
uint8_t reg = 0;
|
|
|
|
axp202_getreg8(priv, AXP202_LDO234_DC23_CTL, ®);
|
|
|
|
if (voltage == 0)
|
|
{
|
|
reg &= ~(1 << 4);
|
|
}
|
|
else
|
|
{
|
|
reg |= (1 << 4);
|
|
}
|
|
|
|
axp202_putreg8(priv, AXP202_LDO234_DC23_CTL, reg);
|
|
|
|
if (voltage != 0)
|
|
{
|
|
axp202_getreg8(priv, AXP202_DC2OUT_VOL, ®);
|
|
reg &= ~(0xf << 4);
|
|
reg |= ((((voltage - 700) / 25) & 0x3f) << 0);
|
|
axp202_putreg8(priv, AXP202_DC2OUT_VOL, reg);
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
static int axp202_set_dc3_valtage(FAR struct axp202_dev_s *priv,
|
|
int voltage)
|
|
{
|
|
uint8_t reg = 0;
|
|
|
|
axp202_getreg8(priv, AXP202_LDO234_DC23_CTL, ®);
|
|
|
|
if (voltage == 0)
|
|
{
|
|
reg &= ~(1 << 1);
|
|
}
|
|
else
|
|
{
|
|
reg |= (1 << 1);
|
|
}
|
|
|
|
axp202_putreg8(priv, AXP202_LDO234_DC23_CTL, reg);
|
|
|
|
if (voltage != 0)
|
|
{
|
|
axp202_getreg8(priv, AXP202_DC3OUT_VOL, ®);
|
|
reg &= ~(0xf << 4);
|
|
reg |= ((((voltage - 700) / 25) & 0x7f) << 0);
|
|
axp202_putreg8(priv, AXP202_DC3OUT_VOL, reg);
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
FAR struct battery_charger_dev_s *
|
|
axp202_initialize(FAR struct i2c_master_s *i2c, uint8_t addr,
|
|
uint32_t frequency)
|
|
{
|
|
FAR struct axp202_dev_s *priv;
|
|
uint8_t chipid = 0;
|
|
|
|
/* Initialize the axp202 device structure */
|
|
|
|
priv = kmm_zalloc(sizeof(struct axp202_dev_s));
|
|
|
|
if (priv)
|
|
{
|
|
/* Initialize the axp202 device structure */
|
|
|
|
priv->dev.ops = &g_axp202ops;
|
|
priv->i2c = i2c;
|
|
priv->addr = addr;
|
|
priv->frequency = frequency;
|
|
}
|
|
|
|
axp202_getreg8(priv, AXP202_IC_TYPE, &chipid);
|
|
|
|
if (AXP202_CHIP_ID != chipid)
|
|
{
|
|
kmm_free(priv);
|
|
return NULL;
|
|
}
|
|
|
|
/* Initialize ldo2 output voltage */
|
|
|
|
axp202_set_ldo2_valtage(priv, CONFIG_AXP202_LDO2_VOLTAGE);
|
|
|
|
/* Initialize ldo3 output voltage */
|
|
|
|
axp202_set_ldo3_valtage(priv, CONFIG_AXP202_LDO3_VOLTAGE);
|
|
|
|
/* Initialize ldo4 output voltage */
|
|
|
|
axp202_set_ldo4_valtage(priv, CONFIG_AXP202_LDO4_VOLTAGE);
|
|
|
|
/* Initialize dc2 output voltage */
|
|
|
|
axp202_set_dc2_valtage(priv, CONFIG_AXP202_DC2_VOLTAGE);
|
|
|
|
/* Initialize dc3 output voltage */
|
|
|
|
axp202_set_dc3_valtage(priv, CONFIG_AXP202_DC3_VOLTAGE);
|
|
|
|
return (FAR struct battery_charger_dev_s *)priv;
|
|
}
|
|
|
|
#endif /* CONFIG_I2C && CONFIG_I2C_AXP202 */
|