/* * ddi.h	Define the structure for linking in I/O drivers into the *		operating system kernel.  This method is currently only *		used by NET layer drivers, but it will be expanded into *		a link methos for ALL kernel-resident device drivers. * * Version:	@(#)ddi.h	1.0.2	04/22/93 * * Author:	Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org> */#ifndef _LINUX_DDI_H#define _LINUX_DDI_H/* DDI control block flags. */#define DDI_FREADY	0x10000000	/* device is initialized	*/#define DDI_FPRESENT	0x20000000	/* device hardware is present	*/#define DDI_FBLKDEV	0x00000001	/* device has a BLK spec. file	*/#define DDI_FCHRDEV	0x00000002	/* device has a CHR spec. file	*//* Various constants. */#define DDI_MAXNAME	16		/* length of a DDI ID string	*//* This structure is used to set up a DDI driver. */struct ddconf {  int		ioaddr;			/* main I/O (port) address	*/  int		ioaux;			/* auxiliary I/O (HD, AST)	*/  int		irq;			/* IRQ channel			*/  int		dma;			/* DMA channel to use		*/  unsigned long	memsize;		/* size of onboard memory	*/  unsigned long	memaddr;		/* base address of memory	*/};/* The DDI device control block. */struct ddi_device {  char		*title;			/* title of the driver		*/  char		name[DDI_MAXNAME];	/* unit name of the I/O driver	*/  short int	unit;			/* unit number of this driver	*/  short int	nunits;			/* number of units in driver	*/  int		(*init)(struct ddi_device *);	/* initialization func		*/  int		(*handler)(int, ...);	/* command handler		*/  short	int	major;			/* driver major dev number	*/  short	int	minor;			/* driver minor dev number	*/  unsigned long	flags;			/* various flags		*/  struct ddconf config;			/* driver HW setup		*/};/* This structure is used to set up networking protocols. */struct ddi_proto {  char		*name;			/* protocol name		*/  void		(*init)(struct ddi_proto *);	/* initialization func	*/};/* This structure is used to link a STREAMS interface. */struct iflink {  char		id[DDI_MAXNAME];	/* DDI ID string		*/  char		stream[DDI_MAXNAME];	/* STREAMS interface name	*/  int		family;			/* address (protocol) family	*/  unsigned int	flags;			/* any flags needed (unused)	*/};/* DDI control requests. */#define DDIOCSDBG	0x9000		/* set DDI debug level		*/#define DDIOCGNAME	0x9001		/* get DDI ID name		*/#define DDIOCGCONF	0x9002		/* get DDI HW config		*/#define DDIOCSCONF	0x9003		/* set DDI HW config		*//* DDI global functions. */extern void			ddi_init(void);extern struct ddi_device	*ddi_map(const char *id);#endif	/* _LINUX_DDI_H */