controller.c File Reference

Controller Subsystem. More...

#include <string.h>
#include "libdragon.h"
#include "regsinternal.h"

Defines
SI status register bit definitions
#define	SI_STATUS_DMA_BUSY   ( 1 << 0 )
	SI DMA busy.
#define	SI_STATUS_IO_BUSY   ( 1 << 1 )
	SI IO busy.
Functions
void	controller_init ()
	Initialize the controller subsystem.
int	eeprom_present ()
	Probe the EEPROM interface.
void	eeprom_read (int block, uint8_t *const buf)
	Read a block from EEPROM.
void	eeprom_write (int block, const uint8_t *const data)
	Write a block to EEPROM.
void	controller_read (struct controller_data *output)
	Read the controller button status for all controllers.
void	controller_scan ()
	Scan the controllers to determine the current button state.
struct controller_data	get_keys_down ()
	Get keys that were pressed since the last inspection.
struct controller_data	get_keys_up ()
	Get keys that were released since the last inspection.
struct controller_data	get_keys_held ()
	Get keys that were held since the last inspection.
struct controller_data	get_keys_pressed ()
	Get keys that are currently pressed, regardless of previous state.
int	get_dpad_direction (int controller)
	Return the DPAD calculated direction.
void	execute_raw_command (int controller, int command, int bytesout, int bytesin, unsigned char *out, unsigned char *in)
	Execute a raw PIF command.
int	get_controllers_present ()
	Return a bitmask representing which controllers are present.
int	get_accessories_present ()
	Return a bitmask specifying which controllers have recognized accessories.
int	read_mempak_address (int controller, uint16_t address, uint8_t *data)
	Read a chunk of data from a mempak.
int	write_mempak_address (int controller, uint16_t address, uint8_t *data)
	Write a chunk of data to a mempak.
int	identify_accessory (int controller)
	Identify the accessory connected to a controller.
void	rumble_start (int controller)
	Turn rumble on for a particular controller.
void	rumble_stop (int controller)
	Turn rumble off for a particular controller.

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Detailed Description

Controller Subsystem.