ubavar.h
Keith Bostic
keith at seismo.UUCP
Tue Mar 12 03:46:50 AEST 1985
/* fake ubavar.h to initialize net device drivers */
struct uba_device {
struct uba_driver *ui_driver;
short ui_unit; /* unit number on the system */
short ui_ubanum; /* the uba it is on */
caddr_t ui_addr; /* address of device in i/o space */
u_long ui_flags; /* parameter from system specification */
short ui_alive; /* device exists */
};
struct uba_driver {
int (*ud_probe)(); /* see if a driver is really there */
int (*ud_slave)(); /* see if a slave is there */
int (*ud_attach)(); /* setup driver for a slave */
int (*ud_dgo)(); /* fill csr/ba to start transfer */
u_short *ud_addr; /* device csr addresses */
char *ud_dname; /* name of a device */
struct uba_device **ud_dinfo; /* backpointers to ubdinit structs */
char *ud_mname; /* name of a controller */
short ud_xclu; /* want exclusive use of bdp's */
};
/*
* Flags to UBA map/bdp allocation routines
*/
#define UBA_NEEDBDP 0x01 /* transfer needs a bdp */
#define UBA_CANTWAIT 0x02 /* don't block me */
#define UBA_NEED16 0x04 /* need 16 bit addresses only */
#define UBA_HAVEBDP 0x08 /* use bdp specified in high bits */
#define UBAPURGE(uba, bdp)
#define IF_UBAPURGE(uba, bdp)
ubadr_t uballoc();
#define ubarelse(a,b)
ubadr_t ubmalloc();
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