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Add battery monitor and LED control

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This commit is contained in:
tmk 2014-07-28 11:56:02 +09:00
parent 21e68fbea4
commit ae28b16fc6
1 changed files with 45 additions and 1 deletions
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46
keyboard/hhkb_rn42/rn42/rn42_task.c
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@ -13,6 +13,17 @@
static bool config_mode = false;
static bool force_usb = false;
static void status_led(bool on)
{
if (on) {
DDRE |= (1<<6);
PORTE &= ~(1<<6);
} else {
DDRE |= (1<<6);
PORTE |= (1<<6);
}
}
static void battery_adc_init(void)
{
ADMUX = (1<<REFS1) | (1<<REFS0); // Ref:2.56V band-gap, Input:ADC0(PF0)
@ -43,10 +54,35 @@ static uint16_t battery_adc(void)
return bat;
}
static void battery_led(bool on)
{
if (on) {
DDRF |= (1<<5);
PORTF &= ~(1<<5);
} else {
DDRF &= ~(1<<5);
PORTF |= (1<<5);
}
}
static bool battery_charging(void)
{
// MCP73831:STAT
// Hi-Z: Shutdown/No Battery
// Low: Charging
// Hi: Charged
DDRF &= ~(1<<5);
PORTF |= (1<<5);
return PINF&(1<<5) ? false : true;
}
void rn42_task_init(void)
{
battery_adc_init();
// battery charging(input with pull-up)
DDRF &= ~(1<<5);
PORTF |= (1<<5);
}
void rn42_task(void)
@ -108,6 +144,8 @@ void rn42_task(void)
******************************************************************************/
bool command_extra(uint8_t code)
{
uint32_t t;
uint16_t b;
static host_driver_t *prev_driver = &rn42_driver;
switch (code) {
case KC_H:
@ -166,10 +204,16 @@ bool command_extra(uint8_t code)
xprintf("rn42_rts(): %X\n", rn42_rts());
xprintf("config_mode: %X\n", config_mode);
xprintf("VBUS: %X\n", USBSTA&(1<<VBUS));
xprintf("battery_charging: %X\n", battery_charging());
return true;
case KC_B:
// battery monitor
xprintf("BAT: %04X(%08lX)\n", battery_adc(), timer_read32());
t = timer_read32()/1000;
b = battery_adc();
xprintf("BAT: %umV(%04X)\t", (b-16)*5, b);
xprintf("%02u:", t/3600);
xprintf("%02u:", t%3600/60);
xprintf("%02u\n", t%60);
return true;
default:
if (config_mode)