N64 Commands

Topics
	N64 Rumble Pak Commands

Functions
int	joybus_n64_read (struct joybus *bus, struct joybus_n64_controller_state *response)
	Read the current input state of an N64 controller or mouse.
int	joybus_n64_read_async (struct joybus *bus, struct joybus_n64_controller_state *response, joybus_transfer_cb callback, void *user_data)
	Read the current input state of an N64 controller or mouse, asynchronously.
int	joybus_n64_pak_write (struct joybus *bus, uint16_t addr, const void *data, uint8_t response[JOYBUS_CMD_N64_PAK_WRITE_RX])
	Write a block of data to the pak attached to an N64 controller.
int	joybus_n64_pak_write_async (struct joybus *bus, uint16_t addr, const uint8_t data[JOYBUS_PAK_BLOCK_SIZE], uint8_t response[JOYBUS_CMD_N64_PAK_WRITE_RX], joybus_transfer_cb callback, void *user_data)
	Write a block of data to the pak attached to an N64 controller, asynchronously.
int	joybus_n64_pak_read (struct joybus *bus, uint16_t addr, uint8_t response[JOYBUS_CMD_N64_PAK_READ_RX])
	Read a block of data from the pak attached to an N64 controller.
int	joybus_n64_pak_read_async (struct joybus *bus, uint16_t addr, uint8_t response[JOYBUS_CMD_N64_PAK_READ_RX], joybus_transfer_cb callback, void *user_data)
	Read a block of data from the pak attached to an N64 controller, asynchronously.

Detailed Description

Function Documentation

joybus_n64_pak_read()

int joybus_n64_pak_read	(	struct joybus *	bus,
		uint16_t	addr,
		uint8_t	response[JOYBUS_CMD_N64_PAK_READ_RX] )

Read a block of data from the pak attached to an N64 controller.

The response buffer will be populated with 32 bytes of data read from the pak, followed by a checksum.

Parameters

bus	the Joybus instance to use
addr	the address to read from, must be 32-byte aligned
response	buffer to store the response in

Returns

0 on success, a negative joybus_error on failure

joybus_n64_pak_read_async()

int joybus_n64_pak_read_async	(	struct joybus *	bus,
		uint16_t	addr,
		uint8_t	response[JOYBUS_CMD_N64_PAK_READ_RX],
		joybus_transfer_cb	callback,
		void *	user_data )

Read a block of data from the pak attached to an N64 controller, asynchronously.

The response buffer will be populated with 32 bytes of data read from the pak, followed by a checksum.

Parameters

bus	the Joybus to use
addr	the address to read from, must be 32-byte aligned
response	buffer to store the response in, must be at least JOYBUS_CMD_N64_PAK_READ_RX bytes
callback	a callback function to call when the transfer is complete
user_data	user data to pass to the callback function

Returns

0 if the transfer was started, a negative joybus_error otherwise

joybus_n64_pak_write()

int joybus_n64_pak_write	(	struct joybus *	bus,
		uint16_t	addr,
		const void *	data,
		uint8_t	response[JOYBUS_CMD_N64_PAK_WRITE_RX] )

Write a block of data to the pak attached to an N64 controller.

The response buffer will be populated with a checksum of the written data (see joybus_data_checksum)

Parameters

bus	the Joybus instance to use
addr	the address to read from, must be 32-byte aligned
data	buffer to store the data in
response	buffer to store the response in

Returns

0 on success, a negative joybus_error on failure

joybus_n64_pak_write_async()

int joybus_n64_pak_write_async	(	struct joybus *	bus,
		uint16_t	addr,
		const uint8_t	data[JOYBUS_PAK_BLOCK_SIZE],
		uint8_t	response[JOYBUS_CMD_N64_PAK_WRITE_RX],
		joybus_transfer_cb	callback,
		void *	user_data )

Write a block of data to the pak attached to an N64 controller, asynchronously.

The response buffer will be populated with a checksum of the written data (see joybus_data_checksum).

Parameters

bus	the Joybus instance to use
addr	the address to write to, must be 32-byte aligned
data	the data to write
response	buffer to store the response in
callback	a callback function to call when the transfer is complete
user_data	user data to pass to the callback function

Returns

0 if the transfer was started, a negative joybus_error otherwise

joybus_n64_read()

int joybus_n64_read	(	struct joybus *	bus,
		struct joybus_n64_controller_state *	response )

Read the current input state of an N64 controller or mouse.

Parameters

bus	the Joybus instance to use
response	buffer to store the response in

Returns

0 on success, a negative joybus_error on failure

Read the current input state of an N64 controller or mouse.

joybus_n64_read_async()

int joybus_n64_read_async	(	struct joybus *	bus,
		struct joybus_n64_controller_state *	response,
		joybus_transfer_cb	callback,
		void *	user_data )

Read the current input state of an N64 controller or mouse, asynchronously.

Parameters

bus	the Joybus instance to use
response	buffer to store the response in
callback	a callback function to call when the transfer is complete
user_data	user data to pass to the callback function

Returns

0 if the transfer was started, a negative joybus_error otherwise