niklascfw/hekate
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 1 Wiki Activity

Add battery/charge info + bugfixes

Browse Source
This commit is contained in:
Kostas Missos
2018-06-28 04:05:19 +03:00
parent 3908493cf5
commit 0c5c827d0b
6 changed files with 216 additions and 197 deletions
Download Patch File Download Diff File Expand all files Collapse all files

243
ipl/max17050.c
View File

@@ -38,190 +38,83 @@
#define STATUS_SMX_BIT (1 << 14)
#define STATUS_BR_BIT (1 << 15)
/* Interrupt mask bits */
#define CONFIG_ALRT_BIT_ENBL (1 << 2)
#define STATUS_INTR_SOCMIN_BIT (1 << 10)
#define STATUS_INTR_SOCMAX_BIT (1 << 14)
#define VFSOC0_LOCK 0x0000
#define VFSOC0_UNLOCK 0x0080
#define dP_ACC_100 0x1900
#define dP_ACC_200 0x3200
#define MAX17050_VMAX_TOLERANCE 50 /* 50 mV */
static int _max17050_get_temperature(int *temp)
{
u16 data;
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_TEMP);
*temp = (s16)data;
/* The value is converted into deci-centigrade scale */
/* Units of LSB = 1 / 256 degree Celsius */
*temp = *temp * 10 / 256;
return 0;
}
int _max17050_get_status(int *status)
{
int charge_full, charge_now;
int avg_current;
u16 data;
/*
* The MAX170xx has builtin end-of-charge detection and will update
* FullCAP to match RepCap when it detects end of charging.
*
* When this cycle the battery gets charged to a higher (calculated)
* capacity then the previous cycle then FullCAP will get updated
* contineously once end-of-charge detection kicks in, so allow the
* 2 to differ a bit.
*/
i2c_recv_buf_small((u8 *)&charge_full, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_FullCAP);
i2c_recv_buf_small((u8 *)&charge_now, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_RepCap);
if ((charge_full - charge_now) <= MAX17050_FULL_THRESHOLD) {
*status = 0xFF; //FULL
return 0;
}
/*
* Even though we are supplied, we may still be discharging if the
* supply is e.g. only delivering 5V 0.5A. Check current if available.
*/
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_AvgCurrent);
avg_current = (s16)data;
avg_current *= 1562500 / MAX17050_DEFAULT_SNS_RESISTOR;
if (avg_current > 0)
*status = 0x1; //Charging
else
*status = 0x0; //Discharging
return 0;
}
int _max17050_get_battery_health(int *health)
{
int temp, vavg, vbatt;
u16 val;
i2c_recv_buf_small((u8 *)&val, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_AvgVCELL);
/* bits [0-3] unused */
vavg = val * 625 / 8;
/* Convert to millivolts */
vavg /= 1000;
i2c_recv_buf_small((u8 *)&val, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_VCELL);
/* bits [0-3] unused */
vbatt = val * 625 / 8;
/* Convert to millivolts */
vbatt /= 1000;
if (vavg < MAX17050_DEFAULT_VMIN) {
*health = HEALTH_DEAD;
goto out;
}
if (vbatt > MAX17050_DEFAULT_VMAX + MAX17050_VMAX_TOLERANCE) {
*health = HEALTH_OVERVOLTAGE;
goto out;
}
_max17050_get_temperature(&temp);
if (temp < MAX17050_DEFAULT_TEMP_MIN) {
*health = HEALTH_COLD;
goto out;
}
if (temp > MAX17050_DEFAULT_TEMP_MAX) {
*health = HEALTH_OVERHEAT;
goto out;
}
*health = HEALTH_GOOD; // 1
out:
return 0;
}
int max17050_get_property(enum MAX17050_reg reg, int *value)
{
u16 data;
switch (reg) {
//case 0x101://///////////////////////////FIX
// _max17050_get_status(value);
// break;
case MAX17050_Cycles: //Cycle count.
i2c_recv_buf_small((u8 *)value, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_Cycles);
break;
case MAX17050_MinMaxVolt: //Voltage max/min
i2c_recv_buf_small((u8 *)value, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_MinMaxVolt);
//value = (data >> 8) * 20; /* Voltage MAX. Units of LSB = 20mV */
//value = (data & 0xff) * 20; /* Voltage MIN. Units of 20mV */
*value = data;
break;
case MAX17050_V_empty: //Voltage min design.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_V_empty);
*value = (data >> 7) * 10; /* Units of LSB = 10mV */
break;
case MAX17050_VCELL: //Voltage now.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_VCELL);
*value = data * 625 / 8 / 1000;
break;
case MAX17050_AvgVCELL: //Voltage avg.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_AvgVCELL);
*value = data * 625 / 8 / 1000;
break;
case MAX17050_OCVInternal: //Voltage ocv.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_OCVInternal);
*value = data * 625 / 8 / 1000;
break;
case MAX17050_RepSOC: //Capacity %.
i2c_recv_buf_small((u8 *)value, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_RepSOC);
break;
case MAX17050_DesignCap: //Charge full design.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_DesignCap);
data = data * 5 / 10;
*value = data;
break;
case MAX17050_FullCAP: //Charge full.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_FullCAP);
data = data * 5 / 10;
*value = data;
break;
case MAX17050_RepCap: //Charge now.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_RepCap);
data = data * 5 / 10;
*value = data;
break;
case MAX17050_TEMP: //Temp.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_TEMP);
*value = (s16)(data);
*value = *value * 10 / 256;
break;
//case 0x100: //FIX me
// _max17050_get_battery_health(value);
// break;
case MAX17050_Current: //Current now.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_Current);
*value = (s16)data;
*value *= 1562500 / MAX17050_DEFAULT_SNS_RESISTOR;
break;
case MAX17050_AvgCurrent: //Current avg.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_AvgCurrent);
*value = (s16)data;
*value *= 1562500 / MAX17050_DEFAULT_SNS_RESISTOR;
break;
default:
return -1;
switch (reg)
{
case MAX17050_Age: //Age (percent). Based on 100% x (FullCAP Register/DesignCap).
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_Age);
*value = data >> 8; /* Show MSB. 1% increments */
break;
case MAX17050_Cycles: //Cycle count.
i2c_recv_buf_small((u8 *)value, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_Cycles);
break;
case MAX17050_MinVolt: //Voltage max/min
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_MinMaxVolt);
*value = (data & 0xff) * 20; /* Voltage MIN. Units of 20mV */
break;
case MAX17050_MaxVolt: //Voltage max/min
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_MinMaxVolt);
*value = (data >> 8) * 20; /* Voltage MAX. Units of LSB = 20mV */
break;
case MAX17050_V_empty: //Voltage min design.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_V_empty);
*value = (data >> 7) * 10; /* Units of LSB = 10mV */
break;
case MAX17050_VCELL: //Voltage now.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_VCELL);
*value = data * 625 / 8 / 1000;
break;
case MAX17050_AvgVCELL: //Voltage avg.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_AvgVCELL);
*value = data * 625 / 8 / 1000;
break;
case MAX17050_OCVInternal: //Voltage ocv.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_OCVInternal);
*value = data * 625 / 8 / 1000;
break;
case MAX17050_RepSOC: //Capacity %.
i2c_recv_buf_small((u8 *)value, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_RepSOC);
break;
case MAX17050_DesignCap: //Charge full design.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_DesignCap);
data = data * 5 / 10;
*value = data;
break;
case MAX17050_FullCAP: //Charge full.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_FullCAP);
data = data * 5 / 10;
*value = data;
break;
case MAX17050_RepCap: //Charge now.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_RepCap);
data = data * 5 / 10;
*value = data;
break;
case MAX17050_TEMP: //Temp.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_TEMP);
*value = (s16)data;
*value = *value * 10 / 256;
break;
case MAX17050_Current: //Current now.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_Current);
*value = (s16)data;
*value *= 1562500 / MAX17050_DEFAULT_SNS_RESISTOR;
break;
case MAX17050_AvgCurrent: //Current avg.
i2c_recv_buf_small((u8 *)&data, 2, I2C_1, MAXIM17050_I2C_ADDR, MAX17050_AvgCurrent);
*value = (s16)data;
*value *= 1562500 / MAX17050_DEFAULT_SNS_RESISTOR;
break;
default:
return -1;
}
return 0;
}