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Import of OpenBSD 4.2 release kernel tree with initial code to support 
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO

Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)

/*	$OpenBSD: netif.h,v 1.5 2003/06/01 17:00:33 deraadt Exp $	*/
/*	$NetBSD: netif.h,v 1.4 1995/09/14 23:45:30 pk Exp $	*/

#ifndef __SYS_LIBNETBOOT_NETIF_H
#define __SYS_LIBNETBOOT_NETIF_H
#include "iodesc.h"

struct netif_driver {
	char	*netif_bname;
	int	(*netif_match)(struct netif *, void *);
	int	(*netif_probe)(struct netif *, void *);
	void	(*netif_init)(struct iodesc *, void *);
	int	(*netif_get)(struct iodesc *, void *, size_t, time_t);
	int	(*netif_put)(struct iodesc *, void *, size_t);
	void	(*netif_end)(struct netif *);
	struct	netif_dif *netif_ifs;
	int	netif_nifs;
};

struct netif_dif {
	int		dif_unit;
	int		dif_nsel;
	struct netif_stats *dif_stats;
	void		*dif_private;
	/* the following fields are used internally by the netif layer */
	u_long		dif_used;
};

struct netif_stats {
	int	collisions;
	int	collision_error;
	int	missed;
	int	sent;
	int	received;
	int	deferred;
	int	overflow;
};

struct netif {
	struct netif_driver	*nif_driver;
	int			nif_unit;
	int			nif_sel;
	void			*nif_devdata;
};

extern struct netif_driver	*netif_drivers[];	/* machdep */
extern int			n_netif_drivers;

extern int			netif_debug;

void		netif_init(void);
struct netif	*netif_select(void *);
int		netif_probe(struct netif *, void *);
void		netif_attach(struct netif *, struct iodesc *, void *);
void		netif_detach(struct netif *);
ssize_t		netif_get(struct iodesc *, void *, size_t, time_t);
ssize_t		netif_put(struct iodesc *, void *, size_t);

int		netif_open(void *);
int		netif_close(int);

struct iodesc	*socktodesc(int);

#endif /* __SYS_LIBNETBOOT_NETIF_H */