joachim/argon40-battery-display
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This commit is contained in:
Jeff Curless
2025-10-05 17:04:07 -04:00
parent 9867433538
commit 3a2c8cbe49
3 changed files with 101 additions and 9 deletions
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10
battery/install
View File

@@ -1,7 +1,7 @@
sudo insmod dummy_battery.ko start_capacity=82 discharge_rate=1 sudo insmod test_battery.ko start_capacity=82 discharge_rate=1
ls -l /sys/class/power_supply/dummy-battery ls -l /sys/class/power_supply/test_battery
cat /sys/class/power_supply/dummy-battery/uevent cat /sys/class/power_supply/test_battery/uevent
cat /sys/class/power_supply/dummy-battery/capacity cat /sys/class/power_supply/test_battery/capacity
cat /sys/class/power_supply/dummy-battery/status cat /sys/class/power_supply/test_battery/status

2
battery/remove
View File

@@ -1 +1 @@
sudo rmmod dummy_battery sudo rmmod test_power

98
battery/test_power.c
View File

@@ -25,6 +25,88 @@ enum test_power_id {
TEST_POWER_NUM, TEST_POWER_NUM,
}; };
//
//
char *enumNames[] = {
"POWER_SUPPLY_PROP_STATUS",
"POWER_SUPPLY_PROP_CHARGE_TYPE",
"POWER_SUPPLY_PROP_HEALTH",
"POWER_SUPPLY_PROP_PRESENT",
"POWER_SUPPLY_PROP_ONLINE",
"POWER_SUPPLY_PROP_AUTHENTIC",
"POWER_SUPPLY_PROP_TECHNOLOGY",
"POWER_SUPPLY_PROP_CYCLE_COUNT",
"POWER_SUPPLY_PROP_VOLTAGE_MAX",
"POWER_SUPPLY_PROP_VOLTAGE_MIN",
"POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN",
"POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN",
"POWER_SUPPLY_PROP_VOLTAGE_NOW",
"POWER_SUPPLY_PROP_VOLTAGE_AVG",
"POWER_SUPPLY_PROP_VOLTAGE_OCV",
"POWER_SUPPLY_PROP_VOLTAGE_BOOT",
"POWER_SUPPLY_PROP_CURRENT_MAX",
"POWER_SUPPLY_PROP_CURRENT_NOW",
"POWER_SUPPLY_PROP_CURRENT_AVG",
"POWER_SUPPLY_PROP_CURRENT_BOOT",
"POWER_SUPPLY_PROP_POWER_NOW",
"POWER_SUPPLY_PROP_POWER_AVG",
"POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN",
"POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN",
"POWER_SUPPLY_PROP_CHARGE_FULL",
"POWER_SUPPLY_PROP_CHARGE_EMPTY",
"POWER_SUPPLY_PROP_CHARGE_NOW",
"POWER_SUPPLY_PROP_CHARGE_AVG",
"POWER_SUPPLY_PROP_CHARGE_COUNTER",
"POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT",
"POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX",
"POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE",
"POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX",
"POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT",
"POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX",
"POWER_SUPPLY_PROP_CHARGE_CONTROL_START_THRESHOLD", /* in percents! */
"POWER_SUPPLY_PROP_CHARGE_CONTROL_END_THRESHOLD", /* in percents! */
"POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR",
"POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT",
"POWER_SUPPLY_PROP_INPUT_VOLTAGE_LIMIT",
"POWER_SUPPLY_PROP_INPUT_POWER_LIMIT",
"POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN",
"POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN",
"POWER_SUPPLY_PROP_ENERGY_FULL",
"POWER_SUPPLY_PROP_ENERGY_EMPTY",
"POWER_SUPPLY_PROP_ENERGY_NOW",
"POWER_SUPPLY_PROP_ENERGY_AVG",
"POWER_SUPPLY_PROP_CAPACITY", /* in percents! */
"POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN", /* in percents! */
"POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX", /* in percents! */
"POWER_SUPPLY_PROP_CAPACITY_ERROR_MARGIN", /* in percents! */
"POWER_SUPPLY_PROP_CAPACITY_LEVEL",
"POWER_SUPPLY_PROP_TEMP",
"POWER_SUPPLY_PROP_TEMP_MAX",
"POWER_SUPPLY_PROP_TEMP_MIN",
"POWER_SUPPLY_PROP_TEMP_ALERT_MIN",
"POWER_SUPPLY_PROP_TEMP_ALERT_MAX",
"POWER_SUPPLY_PROP_TEMP_AMBIENT",
"POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN",
"POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX",
"POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW",
"POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG",
"POWER_SUPPLY_PROP_TIME_TO_FULL_NOW",
"POWER_SUPPLY_PROP_TIME_TO_FULL_AVG",
"POWER_SUPPLY_PROP_TYPE", /* use power_supply.type instead */
"POWER_SUPPLY_PROP_USB_TYPE",
"POWER_SUPPLY_PROP_SCOPE",
"POWER_SUPPLY_PROP_PRECHARGE_CURRENT",
"POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT",
"POWER_SUPPLY_PROP_CALIBRATE",
"POWER_SUPPLY_PROP_MANUFACTURE_YEAR",
"POWER_SUPPLY_PROP_MANUFACTURE_MONTH",
"POWER_SUPPLY_PROP_MANUFACTURE_DAY",
"POWER_SUPPLY_PROP_MODEL_NAME",
"POWER_SUPPLY_PROP_MANUFACTURER",
"POWER_SUPPLY_PROP_SERIAL_NUMBER",
};
//
//
#define BLKDRV_NAME "battery" #define BLKDRV_NAME "battery"
#define FMT_PREFIX ": %s[%d] " #define FMT_PREFIX ": %s[%d] "
#define DEBUG_INFO( fmt, arg...) printk( KERN_INFO BLKDRV_NAME FMT_PREFIX fmt, __func__, __LINE__, ##arg ) #define DEBUG_INFO( fmt, arg...) printk( KERN_INFO BLKDRV_NAME FMT_PREFIX fmt, __func__, __LINE__, ##arg )
@@ -35,7 +117,7 @@ static int battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
static int battery_health = POWER_SUPPLY_HEALTH_GOOD; static int battery_health = POWER_SUPPLY_HEALTH_GOOD;
static int battery_present = 1; /* true */ static int battery_present = 1; /* true */
static int battery_technology = POWER_SUPPLY_TECHNOLOGY_LION; static int battery_technology = POWER_SUPPLY_TECHNOLOGY_LION;
static int battery_capacity = 50; static int battery_capacity = 100;
static int battery_voltage = 3300; static int battery_voltage = 3300;
static int battery_charge_counter = -1000; static int battery_charge_counter = -1000;
static int battery_current = -1600; static int battery_current = -1600;
@@ -78,8 +160,6 @@ static int test_power_get_battery_property(struct power_supply *psy,
enum power_supply_property psp, enum power_supply_property psp,
union power_supply_propval *val) union power_supply_propval *val)
{ {
DEBUG_INFO( "psp = %d", psp );
switch (psp) { switch (psp) {
case POWER_SUPPLY_PROP_MODEL_NAME: case POWER_SUPPLY_PROP_MODEL_NAME:
val->strval = "Test battery"; val->strval = "Test battery";
@@ -141,6 +221,18 @@ static int test_power_get_battery_property(struct power_supply *psy,
__func__); __func__);
return -EINVAL; return -EINVAL;
} }
switch( psp ){
case POWER_SUPPLY_PROP_MODEL_NAME:
case POWER_SUPPLY_PROP_MANUFACTURER:
case POWER_SUPPLY_PROP_SERIAL_NUMBER:
DEBUG_INFO( "%s -> %s", enumNames[psp],val->strval );
break;
default:
DEBUG_INFO( "%s -> %d", enumNames[psp],val->intval );
break;
}
return 0; return 0;
} }