gpio.h

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#
 
#pragma once
 
#include <stdint.h>
#include <stdbool.h>
 
// There are more bits, these are just the one that the
// PowerPC side has access to.
#define GPIO_SLOT_LED   0x000020 // Blue LEDs around the disk reader
#define GPIO_SLOT_IN    0x000080 // High when tilt switch in disk reader is presses.
#define GPIO_SENSOR_BAR 0x000100 // Turns on the sensor bar.
#define GPIO_EJECT      0x000200 // Pulse to eject disk
#define GPIO_AVE_SCL    0x004000 // AVE Encoder I2C Clock
#define GPIO_AVE_SDA    0x008000 // AVE Encoder I2C SDA

extern void gpio_write(uint32_t bit, bool set);

extern bool gpio_read(uint32_t bit);

extern void gpio_set_direction(uint32_t bit, bool direction);