Multi-Processor Communication API. More...

Classes
class	MPClass
	This is the interface for MP (Multi-Processor). More...

Macros
#define	MPDBG(format, ...)

#define	MPERR(format, ...) printf("ERROR: " format, ##__VA_ARGS__)

#define	KEY_SHM 1

#define	KEY_MQ 2

#define	MP_RECV_BLOCKING (0)

#define	MP_RECV_POLLING (MPMQ_NONBLOCK)

#define	MP_GET_CPUID() ((volatile int )0x4e002040)

#define	MP_MAX_SUBID 6

#define	MPLOG_PREFIX "[Main] "

#define	MPLog(fmt, ...)

Functions
template<typename T >
int	MPClass::SendObject (T &t, int subid)
	Send any object to the other processor. More...

template<typename T >
int	MPClass::RecvObject (T &t, int subid)
	Receive any object from the other processor. More...

Variables
MPClass	MP

Detailed Description

Multi-Processor Communication API.

Macro Definition Documentation

◆ MPLog

#define MPLog	(	fmt,
		...
	)

Value:

    do { \
    irqstate_t flags; \
    flags = printlock(); \
    sync_printf(MPLOG_PREFIX fmt, ##__VA_ARGS__); \
    printunlock(flags); \
} while (0)

Function Documentation

◆ SendObject()

template<typename T >

int MPClass::SendObject	(	T &	t,
		int	subid
	)

Send any object to the other processor.

Parameters

[in]	t	- reference to user-defined object
[in]	subid	- SubCore number(1~5) to send any message. If core is SubCore, send to MainCore by default.

Returns: error code. It returns minus value on failure.

Return values

-22(-EINVAL)	Invalid argument
-19(-ENODEV)	No such SubCore program

The size of object must be 128 bytes or less.

◆ RecvObject()

template<typename T >

int MPClass::RecvObject	(	T &	t,
		int	subid
	)

Receive any object from the other processor.

Parameters

[out]	t	- reference to user-defined object
[in]	subid	- SubCore number(1~5) to receive any message. If core is SubCore, receive from MainCore by default.

Returns: msgid or error code. It returns minus value on failure.

Return values

-22(-EINVAL)	Invalid argument
-19(-ENODEV)	No such SubCore program
-116(-ETIMEDOUT)	Timeout to receive from other core

The size of object must be 128 bytes or less.

Classes

Macros