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Fix timing issues with battery desync fix

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This commit is contained in:
Kostas Missos
2018-07-01 04:58:37 +03:00
parent e5a34c3818
commit d9dba2b182
2 changed files with 29 additions and 34 deletions
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26
ipl/bq24193.c
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@@ -132,11 +132,11 @@ int bq24193_get_property(enum BQ24193_reg_prop prop, int *value)
data = i2c_recv_byte(I2C_1, BQ24193_I2C_ADDR, BQ24193_FaultReg);
*value = data & BQ24193_FAULT_THERM_MASK;
break;
case BQ24193_DevID: //Current now.
case BQ24193_DevID: // Dev ID.
data = i2c_recv_byte(I2C_1, BQ24193_I2C_ADDR, BQ24193_VendorPart);
*value = data & BQ24193_VENDORPART_DEV_MASK;
break;
case BQ24193_ProductNumber: //Current avg.
case BQ24193_ProductNumber: // Product number.
data = i2c_recv_byte(I2C_1, BQ24193_I2C_ADDR, BQ24193_VendorPart);
*value = (data & BQ24193_VENDORPART_PN_MASK) >> 3;
break;
@@ -146,24 +146,6 @@ int bq24193_get_property(enum BQ24193_reg_prop prop, int *value)
return 0;
}
static int _bq24193_write_verify_reg(u8 reg, u8 value)
{
int retries = 8;
int ret;
u8 read_value;
do {
ret = i2c_send_byte(I2C_1, BQ24193_I2C_ADDR, reg, value);
read_value = i2c_recv_byte(I2C_1, BQ24193_I2C_ADDR, reg);
if (read_value != value) {
ret = -1;
retries--;
}
} while (retries && read_value != value);
return ret;
}
void bq24193_fake_battery_removal()
{
u8 value;
@@ -171,10 +153,10 @@ void bq24193_fake_battery_removal()
// Disable watchdog to keep BATFET disabled.
value = i2c_recv_byte(I2C_1, BQ24193_I2C_ADDR, BQ24193_ChrgTermTimer);
value &= ~BQ24193_CHRGTERM_WATCHDOG_MASK;
_bq24193_write_verify_reg(BQ24193_ChrgTermTimer, value);
i2c_send_byte(I2C_1, BQ24193_I2C_ADDR, BQ24193_ChrgTermTimer, value);
// Force BATFET to disabled state. This disconnects the battery from the system.
value = i2c_recv_byte(I2C_1, BQ24193_I2C_ADDR, BQ24193_Misc);
value |= BQ24193_MISC_BATFET_DI_MASK;
_bq24193_write_verify_reg(BQ24193_Misc, value);
i2c_send_byte(I2C_1, BQ24193_I2C_ADDR, BQ24193_Misc, value);
}