/* $NetBSD: edcreg.h,v 1.5 2008/05/04 13:11:14 martin Exp $ */
/*
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jaromir Dolecek.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Driver for MCA ESDI controllers and disks.
*/
#define ESDIC_IOPRM 0x3510
#define ESDIC_IOALT 0x3518
#define ESDIC_REG_NPORTS 8
#define ESDIC_IRQ 14 /* this is fixed */
/* pos2 */
#define IO_IS_ALT 0x02
#define DRQ_MASK 0x3c
#define FAIRNESS_ENABLE 0x40
/* pos3 */
#define PACING_INT_MASK 0x30
/* pos4 */
#define PACING_CTRL_DISABLE 0x01
#define RELEASE_2 0x02 /* lower bit of Time to Release */
#define RELEASE_1 0x04 /* higher bit of Time to Release */
/* controller registers */
#define SIFR 0 /* read Status Interface Register,
2 bytes, little endian */
#define SIFR_CMD_MASK 0x2f
#define CIFR 0 /* write - Command Interface Reg,
2 bytes, little endian */
#define CIFR_LONG_CMD (1<<14) /* 4 word command */
/* Command Codes */
#define CMD_READ_DATA 0x01 /* uses DMA */
#define CMD_WRITE_DATA 0x02 /* uses DMA */
#define CMD_READ_VERIFY 0x03
#define CMD_WRITE_VERIFY 0x04 /* uses DMA */
#define CMD_SEEK 0x05
#define CMD_PARK_HEAD 0x06
#define CMD_GET_CMD_COMP_STATUS 0x07
#define CMD_GET_DEV_STATUS 0x08
#define CMD_GET_DEV_CONF 0x09
#define CMD_GET_POS_INFO 0x0A
#define CMD_TRANSLATE_RBA 0x0B
#define CMD_WRITE_ATTACH_BUFF 0x10 /* uses DMA */
#define CMD_READ_ATTACH_BUFF 0x11 /* uses DMA */
#define CMD_RUN_DIAG_TEST 0x12
#define CMD_GET_DIAG_STAT_BLOCK 0x14
#define CMD_GET_MFG_HEADER 0x15 /* uses DMA */
#define CMD_FORMAT_UNIT 0x16 /* uses DMA */
#define CMD_FORMAT_PREPARE 0x17
#define CMD_SET_MAX_RBA 0x1A
#define CMD_SET_PWR_SAV_MODE 0x1B /* optional */
#define CMD_POWER_CONS_CMD 0x1C /* optional */
#define BCR 2 /* write */
#define BCR_INT_ENABLE 0x01
#define BCR_DMA_ENABLE 0x02
#define BCR_RESET 0x80
#define BSR 2 /* read */
#define BSR_DMA_ENABLED 0x80
#define BSR_INT_PENDING 0x40
#define BSR_CMD_INPROGRESS 0x20
#define BSR_BUSY 0x10
#define BSR_SIFR_FULL 0x08 /* also called STATUS OUT */
#define BSR_CIFR_FULL 0x04
#define BSR_TRANSFER_REQ 0x02
#define BSR_INTR 0x01
#define ISR 3 /* read, Interrupt Status Register */
#define ISR_DEV_SELECT_MASK 0xE0
#define ISR_ATTACH_ERR 0x10
#define ISR_INTR_ID_MASK 0x0F
#define ISR_COMPLETED 0x01
#define ISR_COMPLETED_WITH_ECC 0x03
#define ISR_COMPLETED_RETRIES 0x05
#define ISR_PARTIAL_FORMAT 0x06 /* Status available */
#define ISR_COMPLETED_WARNING 0x08
#define ISR_ABORT_COMPLETED 0x09
#define ISR_RESET_COMPLETED 0x0A
#define ISR_DATA_TRANSFER_RDY 0x0B /* No Status Block */
#define ISR_CMD_FAILED 0x0C
#define ISR_DMA_ERROR 0x0D
#define ISR_CMD_BLOCK_ERROR 0x0E
#define ISR_ATTN_ERROR 0x0F
/* Macros to get info from command status block */
#define SB_GET_CMD_STATUS(sb) (((sb)[1] & 0xff00) >> 8)
#define SB_RESBLKCNT_IDX 3
#define ATN 3 /* write, Attention register */
#define ATN_CMD_REQ 1
#define ATN_END_INT 2 /* End of Interrupt (EOI) */
#define ATN_ABORT_CMD 3
#define ATN_RESET_ATTACHMENT 4
#define DASD_DEVNO_CONTROLLER 7 /* Device number for controller */