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-/*
- * Mach Operating System
- * Copyright (c) 1991,1990,1989 Carnegie Mellon University
- * All Rights Reserved.
- *
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
- * School of Computer Science
- * Carnegie Mellon University
- * Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
-/*
- * File: vs42x_rb.h
- * Author: Alessandro Forin, Carnegie Mellon University
- * Date: 5/91
- *
- * This file contains definitions for the VS42X-RB Storage
- * controller, which includes a Disk controller and a
- * SCSI controller.
- */
-
-#ifndef _VS42X_RB_H_
-#define _VS42X_RB_H_
-
-/*
- * Phys addresses for the Vax3100
- */
-#define VAX3100_STC_BASE 0x200c0000
-#define VAX3100_STC_RAM_COMPAT 0x200d0000
-#define VAX3100_STC_RAM 0x202d0000
-
-#define VAX3100_STC_HDC9224 0x00000000 /* offsets from BASE */
-#define VAX3100_STC_5380_A 0x00000080
-#define VAX3100_STC_5380_B 0x00000180
-#define VAX3100_STC_DMAREG_A 0x000000a0
-#define VAX3100_STC_DMAREG_B 0x000001a0
-#define VAX3100_STC_RAM_MODE 0x000000e0
-
-#define VAX3100_STC_DMAREG_OFF (0xa0-0x80) /* offset from 5380 */
-
-#define SCI_REG_SIZE 512
-
-/*
- * RAM Buffer for this storage system
- */
-#define SCI_RAM_SIZE 128*1024
-#define SCI_RAM_COMPATSIZE 32*1024
-#define SCI_RAM_EXPMODE 0x01 /* char-size mode register */
-
-/*
- * DMA controller for the SCSI subsystem
- * (Defines for the NCR 5380 are elsewhere)
- */
-
-typedef struct {
- unsigned int sci_dma_adr; /* +000000a0 */
- char pad0[0xc0-0xa0-4];
- unsigned int sci_dma_count; /* +000000c0 */
- unsigned int sci_dma_dir; /* +000000c4 */
- char pad1[0xe0-0xc4-4];
- unsigned char sci_dma_rammode;/* +000000e0 */
-} *sci_dmaregs_t;
-
-#define SCI_DMADR_PUT(ptr,adr) (ptr)->sci_dma_adr = (unsigned)(adr) & SCI_DMA_COUNT_MASK;
-#define SCI_DMADR_GET(ptr,adr) (adr) = (ptr)->sci_dma_adr;
-
-#define SCI_DMA_COUNT_MASK 0x0001ffff
-#define SCI_TC_GET(ptr,cnt) {\
- (cnt) = (ptr)->sci_dma_count;\
- if ((cnt) & 0x00010000) (cnt) |= ~SCI_DMA_COUNT_MASK;\
- (cnt) = -(cnt);\
- }
-#define SCI_TC_PUT(ptr,cnt) (ptr)->sci_dma_count = -(cnt);
-
-#define SCI_DMA_DIR_READ 0x00000001
-#define SCI_DMA_DIR_WRITE 0x00000000
-
-/*
- * Disk controller subsytem (ST506/412), uses a
- * HDC 9224 Universal Disk Controller chip and
- * addresses up to 4 disks.
- */
-typedef struct {
- unsigned char hdc_rap; /* rw: reg addres ptr */
- char pad0[3];
- unsigned char hdc_cmd; /* w: controller command */
-#define hdc_status hdc_cmd /* r: interrupt status */
- char pad1[3];
-} *sci_hdcregs_t;
-
-/*
- * Register Address Pointer
- */
-#define UDC_DMA7 0 /* rw: DMA address bits 7:0 */
-#define UDC_DMA15 1 /* rw: DMA address bits 15:8 */
-#define UDC_DMA23 2 /* rw: DMA address bits 23:16 */
-#define UDC_DSECT 3 /* rw: desired sector */
-#define UDC_DHEAD 4 /* wo: desired head */
-#define UDC_CHEAD 4 /* ro: current head */
-#define UDC_DCYL 5 /* wo: desired cylinder */
-#define UDC_CCYL 5 /* ro: current cylinder */
-#define UDC_SCNT 6 /* wo: sector count */
-#define UDC_RTCNT 7 /* wo: retry count */
-#define UDC_MODE 8 /* wo: operating mode */
-#define UDC_CSTAT 8 /* ro: chip status */
-#define UDC_TERM 9 /* wo: termination conditions */
-#define UDC_DSTAT 9 /* ro: drive status */
-#define UDC_DATA 10 /* rw: data */
-
-/*
- * Controller Commands
- */
-#define HDCC_RESET 0x00
-
-#define HDCC_SET_REGP 0x40 /* low 4 bits is regnum */
-
-#define HDCC_DESELECT 0x01
-
-#define HDCC_SELECT 0x20
-# define HDCC_SELECT_IDMASK 0x03
-# define HDCC_SELECT_DR_HD 0x04
-# define HDCC_SELECT_DR_SD 0x08
-# define HDCC_SELECT_DR_DD 0x0c
-
-#define HDCC_RESTORE_HD 0x03
-
-#define HDCC_RESTORE_RX 0x02
-
-#define HDCC_STEP 0x04
-# define HDCC_STEP_OUT 0x02
-# define HDCC_STEP_SKWAIT 0x01
-
-#define HDCC_POLL 0x10 /* low 4 bits is drive mask */
-
-#define HDCC_SEEK 0x50
-# define HDCC_SEEK_STEP 0x04
-# define HDCC_SEEK_SKWAIT 0x02
-# define HDCC_SEEK_VFY 0x01
-
-#define HDCC_FORMAT 0x60
-# define HDCC_FORMAT_DDMARK 0x10
-
-#define HDCC_READ_T 0x5a
-# define HDCC_READ_XDATA 0x01
-
-#define HDCC_READ_P 0x58
-
-#define HDCC_READ_L 0x5c
-# define HDCC_READ_L_BYPASS 0x02
-
-#define HDCC_WRITE_P 0x80
-# define HDCC_WRITE_BYPASS 0x40
-# define HDCC_WRITE_DDMARK 0x10
-
-#define HDCC_WRITE_L 0xa0
-
-/*
- * Interrupt Status Register
- */
-#define HDCI_BADSECT 0x01
-#define HDCI_OVRUN 0x02
-#define HDCI_RDYCHNG 0x04
-#define HDCI_TERMCOD 0x18
-# define HDC_T_SUCCESS 0x00
-# define HDC_T_EREAD_ID 0x08
-# define HDC_T_EVFY 0x10
-# define HDC_T_EXFER 0x18
-#define HDCI_DONE 0x20
-#define HDCI_DMAREQ 0x40
-#define HDCI_INT 0x80 /* interrupt pending */
-
-/*
- * Desired/Current Head
- */
-#define UDC_HEAD_HMASK 0x0f /* desired head no */
-#define UDC_HEAD_CMASK 0x70 /* desired cyl 10:8 */
-#define UDC_HEAD_BADSEC 0x80
-
-/*
- * Sector Count
- */
-#define HDC_MAXDATA 256*512
-
-/*
- * Retry Count
- */
-#define UDC_RTCNT_MASK 0xf0
-#define UDC_RTCNT_RXDIS 0x08 /* mbz */
-#define UDC_RTCNT_INVRDY 0x04
-#define UDC_RTCNT_MOTOR 0x02
-#define UDC_RTCNT_LOSPEED 0x01
-
-/*
- * Mode
- */
-#define UDC_MODE_HD 0x80 /* hard disk mode mb1 */
-#define UDC_MODE_CHKCOD 0x60 /* error checkin code */
-# define UDC_MODE_CRC 0x00
-# define UDC_MODE_EECC 0x20 /* NA */
-# define UDC_MODE_IECC 0x40 /* hard disks internal 32 ecc */
-# define UDC_MODE_AECC 0x60 /* NA */
-#define UDC_MODE_DENS 0x10 /* mbz */
-#define UDC_MODE_SRATE 0x07
-# define UDC_MODE_RATE_HD 0x00 /* hard disk */
-# define UDC_MODE_RATE_DD 0x01 /* double den rx23 */
-# define UDC_MODE_RATE_SD 0x02 /* single den rz23 */
-# define UDC_MODE_RATE_RD 0x06 /* restore drive */
-
-#define UDC_MODE_RX23_DD 0x81
-#define UDC_MODE_RX23_SD 0x82
-#define UDC_MODE_RDxx 0xc0
-#define UDC_MODE_RD_RESTORE 0xc6
-
-/*
- * Status
- */
-#define UDC_CSTAT_RETRIED 0x80
-#define UDC_CSTAT_ECC 0x40
-#define UDC_CSTAT_ECC_ERR 0x20
-#define UDC_CSTAT_DELDATA 0x10
-#define UDC_CSTAT_SYN_ERR 0x08
-#define UDC_CSTAT_COMP_ERR 0x04
-#define UDC_CSTAT_SELMASK 0x03
-# define UDC_CSTAT_SELHD0 0x00
-# define UDC_CSTAT_SELHD1 0x01
-# define UDC_CSTAT_SELRX 0x02
-# define UDC_CSTAT_SELHD2 0x03
-
-/*
- * Termination
- */
-#define UDC_TERM_CRCPRE 0x80 /* mb1 */
-#define UDC_TERM_IDONE 0x20
-#define UDC_TERM_DELDAT 0x10
-#define UDC_TERM_STAT3 0x08 /* mbz */
-#define UDC_TERM_WPROT 0x04
-#define UDC_TERM_IRDCHNG 0x02
-#define UDC_TERM_WFLT 0x01
-
-/*
- * Drive status
- */
-#define UDC_DSTAT_SELACK 0x80
-#define UDC_DSTAT_INDEX 0x40
-#define UDC_DSTAT_SKCOM 0x20
-#define UDC_DSTAT_TRK0 0x10
-#define UDC_DSTAT_STAT3 0x08 /* mbz */
-#define UDC_DSTAT_WPROT 0x04
-#define UDC_DSTAT_READY 0x02
-#define UDC_DSTAT_WFLT 0x01
-
-
-#endif _VS42X_RB_H_