uba.h

著名的AT&T UNIX v6 源码

# define UBA0 0x80024000 /* sys virt i/o for UBA 0 */
# define UBA0_DEV UBA0 + 0x2000 - 0160000	/* sys virt of device regs */
# define UNIBASE 0760000 /* UNIBUS phys base of i/o reg's */
/* UBA Configuration Register, CNFGR */
# define PARFLT 0x80000000 /* SBI Parity Fault */
# define WSQFLT 0x40000000 /* SBI Write Sequence Fault */
# define URDFLT 0x20000000 /* SBI Unexpected Read Fault */
# define ISQFLT 0x10000000 /* SBI Interlock Sequence Fault */
# define MXTFLT 0x8000000 /* SBI Multiple Transmitter Fault */
# define XMTFLT 0x4000000 /* UBA is transmit faulter */
# define ADPDN 0x800000 /* Adapter Power Down */
# define ADPUP 0x400000 /* Adapter Power Up */
# define UBINIT 0x40000 /* UNIBUS INIT is asserted */
# define UBPDN 0x20000 /* UNIBUS Power Down */
# define UBIC 0x10000 /* UNIBUS Initialization */
			/* UNIBUS Ready */
# define UBACOD 0xff  /*  UBA Code bits */
 
/* UBA Control Register, UBACR  */
 
# define MRD16 0x40000000  /* Map Reg Disable Bit 4  */
# define MRD8 0x20000000  /* Map Reg Disable Bit 3  */
# define MRD4 0x10000000  /* Map Rg Disable Bit 2  */
# define MRD2 0x8000000  /* Map Reg Disable Bit 1 */
# define MRD1 0x4000000  /* Map Reg Disable Bit 0 */
# define IFS 0x40  /*  Interrupt Field Switch */
# define BRIE 0x20  /* BR Interrupt Enable  */
# define USEFIE 0x10  /* UNIBUS to SBI Error Field IE */
# define SUEFIE 0x8  /* SBI to UNIBUS Error Field IE */
# define CNFIE 0x4  /* Configuration IE  */
# define UPF 0x2  /* UNIBUS Power Fail  */
# define ADINIT 0x1  /* Adapter Init */
 
/*  UBA Status Register, UASR  */
# define BR7FULL 0x8000000  /* BR7 Receive Vector Rg Full  */
# define BR6FULL 0x4000000  /* BR6 Receive Vector Reg Full */
# define BR5FULL 0x2000000  /* BR5 Receive Vector Reg Full */
# define BR4FULL 0x1000000  /* BR4 Receive Vector Reg Full */
# define RDTO 0x400  /* UNIBUS to SBI Read Data Timeout */
# define RDS 0x200  /* Read Data Substitute  */
# define CRD 0x100  /* Corrected Read Data */
# define CXTER 0x80  /* Command Transmit Error */
# define CXTMO 0x40  /* Command Transmit Timeout */
# define DPPE 0x20  /* Data Path Parity Error */
# define IVMR 0x10  /* Invalid Map Register */
# define MRPF 0x8  /* Map Register Parity Failure */
# define LEB 0x4  /*  Lost Error  */
# define UBSTO 0x2  /* UNIBUS Select Timeout */
# define UBSSTO 0x1  /* UNIBUS Slave Sync Timeout */
 
/* Failed Map Entry Register, FMER  */
 
# define FMRN 0x1ff  /* Failed Map Reg. No. Field */
 
/*  Failed UNIBUS Address Register, FUBAR  */
# define FUA 0xffff  /* Failed UNIBUS Address Field */
 
/*  BR Receive Vector register, BRRVR  */
# define AIRI 0x80000000  /* Adapter Interrupt Request */
# define DIV 0xffff  /* Device Interrupt Vector Field */
 
/*  Data Path Register, DPR  */
# define BNE 0x80000000  /*  Buffer Not Empty - Purge */
# define BTE 0x40000000  /*  Buffer Transfer Error  */
# define DPF 0x20000000  /* DP Function (RO)  */
# define BS 0x7f0000  /*  Buffer State Field */
# define BUBA 0xffff  /*  Buffered UNIBUS Address  */
 
/*  Map Register, MR  */
 
# define MRV 0x80000000  /*  Map Register Valid  */
# define BO 0x2000000  /*  Byte Offset Bit  */
# define DPDB 0x1e00000  /* Data Path Designator Field  */
# define SBIPFN 0xfffff  /* SBI Page Address Field  */
# define UAMSIZ 50
/*
*  UBA registers
*/

struct uba_regs {
	int uba_cnfgr,
	    uba_cr,
	    uba_sr,
	    uba_dcr,
	    uba_fmer,
	    uba_fubar,
	    pad1[2],
	    uba_brsvr[4],
	    uba_brrvr[4],
	    uba_dpr[16],
	    pad2[480],
	    uba_map[496];
	};