mirror of https://gitee.com/openkylin/linux.git
102 lines
3.2 KiB
C
102 lines
3.2 KiB
C
/******************************************************************************
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** Device driver for the PCI-SCSI NCR538XX controller family.
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**
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** Copyright (C) 1994 Wolfgang Stanglmeier
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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**
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**-----------------------------------------------------------------------------
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**
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** This driver has been ported to Linux from the FreeBSD NCR53C8XX driver
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** and is currently maintained by
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**
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** Gerard Roudier <groudier@free.fr>
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**
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** Being given that this driver originates from the FreeBSD version, and
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** in order to keep synergy on both, any suggested enhancements and corrections
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** received on Linux are automatically a potential candidate for the FreeBSD
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** version.
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**
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** The original driver has been written for 386bsd and FreeBSD by
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** Wolfgang Stanglmeier <wolf@cologne.de>
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** Stefan Esser <se@mi.Uni-Koeln.de>
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**
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** And has been ported to NetBSD by
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** Charles M. Hannum <mycroft@gnu.ai.mit.edu>
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**
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*******************************************************************************
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*/
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#ifndef NCR53C8XX_H
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#define NCR53C8XX_H
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#include <scsi/scsi_host.h>
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#include "sym53c8xx_defs.h"
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/*
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Build a scatter/gather entry.
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see sym53c8xx_2/sym_hipd.h for more detailed sym_build_sge()
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implementation ;)
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*/
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#define ncr_build_sge(np, data, badd, len) \
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do { \
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(data)->addr = cpu_to_scr(badd); \
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(data)->size = cpu_to_scr(len); \
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} while (0)
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/*==========================================================
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**
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** Structures used by the detection routine to transmit
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** device configuration to the attach function.
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**
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**==========================================================
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*/
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struct ncr_slot {
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u_long base;
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u_long base_2;
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u_long base_c;
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u_long base_2_c;
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void __iomem *base_v;
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void __iomem *base_2_v;
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int irq;
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/* port and reg fields to use INB, OUTB macros */
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volatile struct ncr_reg __iomem *reg;
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};
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/*==========================================================
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**
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** Structure used by detection routine to save data on
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** each detected board for attach.
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**
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**==========================================================
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*/
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struct ncr_device {
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struct device *dev;
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struct ncr_slot slot;
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struct ncr_chip chip;
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u_char host_id;
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u8 differential;
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};
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extern struct Scsi_Host *ncr_attach(struct scsi_host_template *tpnt, int unit, struct ncr_device *device);
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extern int ncr53c8xx_release(struct Scsi_Host *host);
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irqreturn_t ncr53c8xx_intr(int irq, void *dev_id, struct pt_regs * regs);
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extern int ncr53c8xx_init(void);
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extern void ncr53c8xx_exit(void);
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#endif /* NCR53C8XX_H */
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