/* $NetBSD: ahscreg.h,v 1.4 2005/12/11 12:16:28 christos Exp $ */ /* * Copyright (c) 1982, 1990 The Regents of the University of California. * All rights reserved. * * 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. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * @(#)dmareg.h */ /* * Copyright (c) 1994 Christian E. Hopps * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * @(#)dmareg.h */ #ifndef _AMIGA_DEV_AHSCREG_H_ #define _AMIGA_DEV_AHSCREG_H_ /* * Hardware layout of the A3000 SDMAC. This also contains the * registers for the sbic chip, but in favor of separating DMA and * scsi, the scsi-driver doesn't make use of this dependency */ #define v_char volatile char #define v_int volatile int #define vu_char volatile u_char #define vu_short volatile u_short #define vu_int volatile u_int struct sdmac { short pad0; vu_short DAWR; /* DACK Width Register WO */ vu_int WTC; /* Word Transfer Count Register RW */ short pad1; vu_short CNTR; /* Control Register RW */ vu_int ACR; /* Address Count Register RW */ short pad2; vu_short ST_DMA; /* Start DMA Transfers RW-Strobe */ short pad3; vu_short FLUSH; /* Flush FIFO RW-Strobe */ short pad4; vu_short CINT; /* Clear Interrupts RW-Strobe */ short pad5; vu_short ISTR; /* Interrupt Status Register RO */ int pad6[7]; short pad7; vu_short SP_DMA; /* Stop DMA Transfers RW-Strobe */ char pad8; vu_char SASR; /* sbic asr */ char pad9; vu_char SCMD; /* sbic data */ }; /* * value to go into DAWR */ #define DAWR_AHSC 3 /* according to A3000T service-manual */ /* * bits defined for CNTR */ #define CNTR_TCEN (1<<5) /* Terminal Count Enable */ #define CNTR_PREST (1<<4) /* Perp Reset (not implemented :-((( ) */ #define CNTR_PDMD (1<<3) /* Perp Device Mode Select (1=SCSI,0=XT/AT) */ #define CNTR_INTEN (1<<2) /* Interrupt Enable */ #define CNTR_DDIR (1<<1) /* Device Direction. 1==rd host, wr perp */ #define CNTR_IO_DX (1<<0) /* IORDY & CSX1 Polarity Select */ /* * bits defined for ISTR */ #define ISTR_INTX (1<<8) /* XT/AT Interrupt pending */ #define ISTR_INT_F (1<<7) /* Interrupt Follow */ #define ISTR_INTS (1<<6) /* SCSI Peripheral Interrupt */ #define ISTR_E_INT (1<<5) /* End-Of-Process Interrupt */ #define ISTR_INT_P (1<<4) /* Interrupt Pending */ #define ISTR_UE_INT (1<<3) /* Under-Run FIFO Error Interrupt */ #define ISTR_OE_INT (1<<2) /* Over-Run FIFO Error Interrupt */ #define ISTR_FF_FLG (1<<1) /* FIFO-Full Flag */ #define ISTR_FE_FLG (1<<0) /* FIFO-Empty Flag */ #endif /* _AMIGA_DEV_AHSCREG_H_ */
