gpio.h

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/*
        libbroadway - A general purpose library to control the Wii.
        GPIO support

Copyright (C) 2008, 2009        Haxx Enterprises <bushing@gmail.com>
Copyright (C) 2009              Andre Heider "dhewg" <dhewg@wiibrew.org>
Copyright (C) 2009              John Kelley <wiidev@kelley.ca>
Copyright (C) 2009              bLAStY <blasty@bootmii.org>
Copyright (C) 2009-2011         Alex Marshall <trap15@raidenii.net>

# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/

#ifndef __GPIO_H__
#define __GPIO_H__

#include <types.h>
#include <broadway.h>

typedef enum {
        GPIO_POWER      = (1 <<  0),    
        GPIO_SHUTDOWN   = (1 <<  1),    
        GPIO_FAN_SPEED  = (1 <<  2),    
        GPIO_DC_DC      = (1 <<  3),    
        GPIO_DI_SPIN    = (1 <<  4),    
        GPIO_SLOT_LED   = (1 <<  5),    
        GPIO_EJECT      = (1 <<  6),    
        GPIO_SLOT_IN    = (1 <<  7),    
        GPIO_SENSOR_BAR = (1 <<  8),    
        GPIO_DI_EJECT   = (1 <<  9),    
        GPIO_EEP_CS     = (1 << 10),    
        GPIO_EEP_CLK    = (1 << 11),    
        GPIO_EEP_MOSI   = (1 << 12),    
        GPIO_EEP_MISO   = (1 << 13),    
        GPIO_AVE_CLK    = (1 << 14),    
        GPIO_AVE_DATA   = (1 << 15),    
        GPIO_DEBUG0     = (1 << 16),    
        GPIO_DEBUG1     = (1 << 17),    
        GPIO_DEBUG2     = (1 << 18),    
        GPIO_DEBUG3     = (1 << 19),    
        GPIO_DEBUG4     = (1 << 20),    
        GPIO_DEBUG5     = (1 << 21),    
        GPIO_DEBUG6     = (1 << 22),    
        GPIO_DEBUG7     = (1 << 23),    
} gpio_pin_t;

int gpio_initialize(void);
int gpio_shutdown(void);

gpio_pin_t gpio_read(void);

void gpio_write(gpio_pin_t gpios);

void gpio_set(gpio_pin_t gpios);

void gpio_clear(gpio_pin_t gpios);

void gpio_mask(gpio_pin_t setgpios, gpio_pin_t clrgpios);

void gpio_switch(gpio_pin_t gpios);

int gpio_direction(gpio_pin_t pin, int dir);

static inline void slotled_change(void)
{
        flip32(HW_GPIO1B_OUT, GPIO_SLOT_LED);
}

static inline void slotled_on(void)
{
        set32(HW_GPIO1B_OUT, GPIO_SLOT_LED);
}

static inline void slotled_off(void)
{
        clear32(HW_GPIO1B_OUT, GPIO_SLOT_LED);
}

static inline void shutdown(void)
{
        set32(HW_GPIO1_OUT, GPIO_SHUTDOWN);
}

#endif