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hosted: Consolidate the code that polls the battery charging status

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affects all hiby targets, fiiom3k, and ibasso dx50/dx90

As well as deduplicating a small pile of code, this also implements
hysteresis so we're not doing a sysfs read/lookup multiple times
back-to-back every time the power management tick fires.

Change-Id: I2f7672acbb36341becf67e07960c24c681270d09
This commit is contained in:
Solomon Peachy 2021-03-10 18:10:00 -05:00
parent b3b8310e4e
commit 555299af9f
19 changed files with 80 additions and 187 deletions
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22
firmware/target/hosted/xduoo/power-xduoo.c
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@ -35,28 +35,6 @@ const char * const sysfs_bat_voltage =
const char * const sysfs_bat_capacity =
"/sys/class/power_supply/battery/capacity";
const char * const sysfs_bat_status =
"/sys/class/power_supply/battery/status";
const char * const sysfs_pow_supply =
"/sys/class/power_supply/usb/present";
unsigned int xduoo_power_input_status(void)
{
int present = 0;
sysfs_get_int(sysfs_pow_supply, &present);
return present ? POWER_INPUT_USB_CHARGER : POWER_INPUT_NONE;
}
bool xduoo_power_charging_status(void)
{
char buf[12] = {0};
sysfs_get_string(sysfs_bat_status, buf, sizeof(buf));
return (strncmp(buf, "Charging", 8) == 0);
}
unsigned int xduoo_power_get_battery_voltage(void)
{
int battery_voltage;