/* $NetBSD: sereg.h,v 1.6 2008/04/28 20:23:37 martin Exp $ */ /*- * Copyright (c) 1997 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Gordon W. Ross. * * 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. */ /* * Sun3/E SCSI/Ethernet board. This is a VME board with some memory, * an Intel Ether, and an NCR5380 SCSI with a cheap DMA engine. */ /***************************************************************** * Register definitions for the SCSI portion. * (size=0x20) */ struct se_regs { u_char ncrregs[8]; u_short unused1; u_short dma_addr; /* DMA offset register */ u_short unused2; u_short dma_cntr; /* DMA count down register */ u_short unused3[5]; u_short se_csr; /* control/status register */ u_short unused4; u_short se_ivec; /* interrupt vector */ }; /* * SCSI Control and Status Register. * Note: * (ro) indicates bit is read only. * (rw) indicates bit is read or write. */ #define SE_CSR_SBC_IP 0x0200 /* (ro) sbc interrupt pending */ #define SE_CSR_SEND 0x0008 /* (rw) DMA dir, 1=to device */ #define SE_CSR_INTR_EN 0x0004 /* (rw) interrupts enable */ #define SE_CSR_VCC 0x0002 /* (ro) power signal to the chip */ #define SE_CSR_SCSI_RES 0x0001 /* (rw) reset sbc and udc, 0=reset */ /***************************************************************** * Register definitions for the Ethernet portion. * (size=0x100) */ struct ie_regs { u_short ie_pad0; u_short ie_csr; u_short ie_pad1[7]; u_short ie_ivec; /* interrupt vector */ u_short ie_pad3[128-10]; }; /* * Ether Control and Status Register. */ #define IE_CSR_RESET 0x8000 /* board reset */ #define IE_CSR_NOLOOP 0x4000 /* loopback disable */ #define IE_CSR_ATTEN 0x2000 /* channel attention */ #define IE_CSR_IENAB 0x1000 /* interrupt enable */ #define IE_CSR_IPEND 0x0100 /* interrupt pending */ /***************************************************************** * Register definitions for the entire SCSI/Ethernet board. * I had the impression that there were overlaps in this map, * which was the reason for existence of the "sebuf" driver. * Now it looks like the "sebuf" driver was unnecessary. XXX */ #define SE_NCRBUFSIZE 0x10000 #define SE_IEBUFSIZE 0x20000 struct sebuf_regs { char se_scsi_buf[SE_NCRBUFSIZE]; struct se_regs se_scsi_regs; char se_pad[0x10000 - 0x120]; struct ie_regs se_eth_regs; char se_eth_buf[SE_IEBUFSIZE]; }; /* 128KB total */
