Port A Mode

NAOMI port A wiring detection More...

Enumerations
enum	mie_port0_mode_t { MIE_PORT0_UNKNOWN = 0 , MIE_PORT0_JVS , MIE_PORT0_MAPLE }
	NAOMI port A wiring mode. More...

Functions
mie_port0_mode_t	mie_port0_mode (void)
	Query NAOMI port A wiring mode.

Detailed Description

NAOMI port A wiring detection

Enumeration Type Documentation

mie_port0_mode_t

enum mie_port0_mode_t

NAOMI port A wiring mode.

Port A can be wired to the MIE/JVS bridge or switched to a regular Dreamcast Maple port. On retail Dreamcast, mie_port0_mode() always returns MIE_PORT0_MAPLE.

Enumerator
MIE_PORT0_UNKNOWN	Probing not finished yet.
MIE_PORT0_JVS	Port A is MIE/JVS bridge.
MIE_PORT0_MAPLE	Port A is standard Maple autodetect.

Function Documentation

mie_port0_mode()

mie_port0_mode_t mie_port0_mode

(

void

)

Query NAOMI port A wiring mode.

Returns the mode selected after MIE probing during maple_wait_scan(). When MIE_PORT0_MAPLE is active, port A is handled by the standard Maple autodetect path instead of this driver.

Returns

Current port A wiring mode.

Referenced by outputs_blink(), and ui_build().