/home/travis/build/larsks/pipower/pipower.c File Reference

Raspberry Pi/Powerboost 1000c/ATtiny85 power controller. More...

#include <stdint.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/sleep.h>
#include "bool.h"
#include "button.h"
#include "millis.h"
#include "input.h"
#include "pins.h"
#include "states.h"

Macros
#define	LONG_PRESS_DURATION   2000
	Length of long press.
#define	BUTTON_NORMAL   0
	Process button events normally.
#define	BUTTON_IGNORE   1
	Power button must be released.
#define	ONE_SECOND   1000
#define	TIMER_BUTTON   10
	Period for reading button state.
#define	TIMER_POWERWAIT   (1 * ONE_SECOND)
	How long to wait for USB to stabilize.
#define	TIMER_BOOTWAIT   (30 * ONE_SECOND)
	How long to wait for boot.
#define	TIMER_SHUTDOWN   (30 * ONE_SECOND)
	How long to wait for shutdown.
#define	TIMER_POWEROFF   (30 * ONE_SECOND)
	How long to wait for power off.
#define	TIMER_IDLE   (5 * ONE_SECOND)
	How long to wait before returning to SLEEP_PWRDOWN mode.

Functions
	EMPTY_INTERRUPT (PCINT0_vect)
	Trigger wake from power-down mode on pin change interrupt. More...
void	setup ()
	Run once when mc boots. More...
void	enable_pcie ()
	Enable pin change interrupts in GIMS.
void	disable_pcie ()
	Disable pin change interrupts in GIMS.
void	loop ()
	Runs periodically.
int	main ()

Variables
unsigned long	now
	Set to the current value of millis() on each loop iteration. More...
unsigned long	timer_start = 0
	Generic timer used in state transitions.
Button	power_button
	Power button.
uint8_t	power_button_state = BUTTON_NORMAL
	Power button current state.
unsigned long	time_pressed
	Current press duration.
enum STATE	state = STATE_START
	Current run state. More...
bool	quit = false
	Allow debugger to trigger exit from main loop.
Input	usb
	USB signal from PowerBoost.
Input	boot
	BOOT signal from Raspberry Pi.

Detailed Description

Raspberry Pi/Powerboost 1000c/ATtiny85 power controller.

Function Documentation

EMPTY_INTERRUPT

(

PCINT0_vect

)

Trigger wake from power-down mode on pin change interrupt.

We rely on the pin change interrupt to wake from SLEEP_PWRDOWN mode, but we do not otherwise need to handle the interrupt, so this is a do-nothing routine.

void setup

(

)

Run once when mc boots.

Variable Documentation

unsigned long now

Set to the current value of millis() on each loop iteration.

enum STATE state = STATE_START

Current run state.