module.h

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#ifndef MODULE_H
#define MODULE_H

typedef struct ModuleHeader ModuleHeader;
typedef struct CmdTable CmdTable;
typedef struct SWIRegs SWIRegs;
typedef struct ModuleInfo *ModuleHandle;
typedef char *TitleString;
typedef char *HelpString;
typedef unsigned SWIBase;
typedef unsigned ARMWord;

typedef void (*ServiceCont)(void);
typedef void (*CommandCont)(void);
typedef void (*SWICont)(void);

typedef void (*StartCode)(char *cmd);
typedef ModuleHandle (*InitCode)(void);
typedef void (*FinalCode)(void);
typedef ServiceCont (*ServiceCode)(int service);
typedef CommandCont (*CommandCode)(char *cmd);
typedef SWICont (*SWICode)(unsigned swino, SWIRegs *regs);

struct SWIRegs {
	unsigned	r[13];
};

struct CmdTable {
	char 		*command;
	CommandCode	code;
	unsigned	flags;
	char		*syntax;
	char		*help;
};

#define MODULE_MAGIC	0x4d484944	/* 'MHID' */

#define UNPLUGGED_FLAG	0x0001
#define AUTOSTART_FLAG	0x0002

#define MAJOR_VERSION	1
#define MINOR_VERSION	0

struct ModuleHeader {
	unsigned	magic;
	unsigned	flags:16;
	unsigned	major:8;
	unsigned	minor:8;
	unsigned	checksum;
	ARMWord		*ro_base;
	ARMWord		*ro_limit;
	ARMWord		*rw_base;
	ARMWord		*zi_base;
	ARMWord		*zi_limit;
	const ModuleHeader *self;
	StartCode	start;
	InitCode	init;
	FinalCode	final;
	ServiceCode	service;
	TitleString	title;
	HelpString	help;
	CmdTable	*cmdtbl;
	SWIBase		swi_base;
	SWICode		swi_handler;
};

#endif