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1.1 ! root 1: /* ! 2: * Copyright (c) 1986 The Regents of the University of California. ! 3: * All rights reserved. ! 4: * ! 5: * Redistribution is only permitted until one year after the first shipment ! 6: * of 4.4BSD by the Regents. Otherwise, redistribution and use in source and ! 7: * binary forms are permitted provided that: (1) source distributions retain ! 8: * this entire copyright notice and comment, and (2) distributions including ! 9: * binaries display the following acknowledgement: This product includes ! 10: * software developed by the University of California, Berkeley and its ! 11: * contributors'' in the documentation or other materials provided with the ! 12: * distribution and in all advertising materials mentioning features or use ! 13: * of this software. Neither the name of the University nor the names of ! 14: * its contributors may be used to endorse or promote products derived from ! 15: * this software without specific prior written permission. ! 16: * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED ! 17: * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF ! 18: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ! 19: * ! 20: * @(#)psproto.h 7.3 (Berkeley) 6/28/90 ! 21: */ ! 22: ! 23: /* ! 24: * PS300-Host Handshake Protocol Definitions. ! 25: */ ! 26: ! 27: /* ! 28: * Commands sent from host->PS300. ! 29: * ! 30: * In the initial handshake carried out when requesting ! 31: * one of these commands be performed, the PS300 always ! 32: * returns the identical code to indicate success. ! 33: */ ! 34: #define PS_ABORT 0x1000 /* abort current command */ ! 35: #define PS_RESET 0x3000 /* reset device */ ! 36: #define PS_RDNET 0x5000 /* logical read */ ! 37: #define PS_LOOKUP 0x8000 /* name lookup */ ! 38: #define PS_RDPHY 0x9000 /* physical read */ ! 39: #define PS_WRPHY_SYNC 0xa000 /* physical write w/ sync */ ! 40: #define PS_WRPHY 0xb000 /* physical write */ ! 41: #define PS_WRNET 0xc000 /* logical write */ ! 42: #define PS_DETACH 0xd000 /* normal/diagnostic detach */ ! 43: #define PS_ATTACH 0xe000 /* normal attach */ ! 44: #define PS_DATTACH 0xf000 /* diagnostic attach */ ! 45: ! 46: #define PS_DIOREAD 0x4000 /* internal, wait for dioread attention */ ! 47: ! 48: /* ! 49: * Command responses from PS300->host. ! 50: */ ! 51: #define PS_DMAOK(code) ((code)|0x0a00) /* successful dma transfer */ ! 52: #define PS_ADROK(code) ((code)|0x0100) /* successful address tranfer */ ! 53: ! 54: #define PS_CODE(v) ((v)&0xf000) /* extract code from PS300 msg */ ! 55: #define PS_LUNIT(v) ((v)&0x000f) /* extract PS300 unit from msg */ ! 56: ! 57: /* ! 58: * Single unit PS300 address list. ! 59: */ ! 60: struct psalist { ! 61: u_short nblocks; /* # of i/o vectors (we always use 1) */ ! 62: u_short addr[2]; /* PS300 address */ ! 63: u_short wc; /* transfer size */ ! 64: }; ! 65: ! 66: /* ! 67: * The max dma size is actually 64KB, but ! 68: * we limit it to be just large enough for ! 69: * the maximum vector list as this is sufficient ! 70: * for our needs and we must allocate real ! 71: * memory to the intermediate buffer. ! 72: */ ! 73: #define PS_MAXDMA (1024+2048*12) ! 74: ! 75: /* ! 76: * Pseudo commands used internally by the driver. ! 77: */ ! 78: #define PS_DMAOUT 0x0100 /* dma buffer host->PS300 */ ! 79: #define PS_DMAIN 0x0200 /* dma buffer PS300->host */ ! 80: ! 81: /* ! 82: * Default timeouts. ! 83: */ ! 84: #define PS_TIMEOUT 30 /* dma/attention timeout (in hz) */ ! 85: #define PS_DIOTIMO 1000 /* dio polling timeout */
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