134406Skarels /* 2*35514Sbostic * Copyright (c) 1986 The Regents of the University of California. 3*35514Sbostic * All rights reserved. 4*35514Sbostic * 5*35514Sbostic * Redistribution and use in source and binary forms are permitted 6*35514Sbostic * provided that the above copyright notice and this paragraph are 7*35514Sbostic * duplicated in all such forms and that any documentation, 8*35514Sbostic * advertising materials, and other materials related to such 9*35514Sbostic * distribution and use acknowledge that the software was developed 10*35514Sbostic * by the University of California, Berkeley. The name of the 11*35514Sbostic * University may not be used to endorse or promote products derived 12*35514Sbostic * from this software without specific prior written permission. 13*35514Sbostic * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14*35514Sbostic * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15*35514Sbostic * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16*35514Sbostic * 17*35514Sbostic * @(#)psproto.h 7.2 (Berkeley) 09/16/88 1834406Skarels */ 1930224Ssam 2030224Ssam /* 2130224Ssam * PS300-Host Handshake Protocol Definitions. 2230224Ssam */ 2330224Ssam 2430224Ssam /* 2530224Ssam * Commands sent from host->PS300. 2630224Ssam * 2730224Ssam * In the initial handshake carried out when requesting 2830224Ssam * one of these commands be performed, the PS300 always 2930224Ssam * returns the identical code to indicate success. 3030224Ssam */ 3130224Ssam #define PS_ABORT 0x1000 /* abort current command */ 3230224Ssam #define PS_RESET 0x3000 /* reset device */ 3330224Ssam #define PS_RDNET 0x5000 /* logical read */ 3430224Ssam #define PS_LOOKUP 0x8000 /* name lookup */ 3530224Ssam #define PS_RDPHY 0x9000 /* physical read */ 3630224Ssam #define PS_WRPHY_SYNC 0xa000 /* physical write w/ sync */ 3730224Ssam #define PS_WRPHY 0xb000 /* physical write */ 3830224Ssam #define PS_WRNET 0xc000 /* logical write */ 3930224Ssam #define PS_DETACH 0xd000 /* normal/diagnostic detach */ 4030224Ssam #define PS_ATTACH 0xe000 /* normal attach */ 4130224Ssam #define PS_DATTACH 0xf000 /* diagnostic attach */ 4230224Ssam 4330224Ssam #define PS_DIOREAD 0x4000 /* internal, wait for dioread attention */ 4430224Ssam 4530224Ssam /* 4630224Ssam * Command responses from PS300->host. 4730224Ssam */ 4830224Ssam #define PS_DMAOK(code) ((code)|0x0a00) /* successful dma transfer */ 4930224Ssam #define PS_ADROK(code) ((code)|0x0100) /* successful address tranfer */ 5030224Ssam 5130224Ssam #define PS_CODE(v) ((v)&0xf000) /* extract code from PS300 msg */ 5230224Ssam #define PS_LUNIT(v) ((v)&0x000f) /* extract PS300 unit from msg */ 5330224Ssam 5430224Ssam /* 5530224Ssam * Single unit PS300 address list. 5630224Ssam */ 5730224Ssam struct psalist { 5830224Ssam u_short nblocks; /* # of i/o vectors (we always use 1) */ 5930224Ssam u_short addr[2]; /* PS300 address */ 6030224Ssam u_short wc; /* transfer size */ 6130224Ssam }; 6230224Ssam 6330224Ssam /* 6430224Ssam * The max dma size is actually 64KB, but 6530224Ssam * we limit it to be just large enough for 6630224Ssam * the maximum vector list as this is sufficient 6730224Ssam * for our needs and we must allocate real 6830224Ssam * memory to the intermediate buffer. 6930224Ssam */ 7030224Ssam #define PS_MAXDMA (1024+2048*12) 7130224Ssam 7230224Ssam /* 7330224Ssam * Pseudo commands used internally by the driver. 7430224Ssam */ 7530224Ssam #define PS_DMAOUT 0x0100 /* dma buffer host->PS300 */ 7630224Ssam #define PS_DMAIN 0x0200 /* dma buffer PS300->host */ 7730224Ssam 7830224Ssam /* 7930224Ssam * Default timeouts. 8030224Ssam */ 8130224Ssam #define PS_TIMEOUT 30 /* dma/attention timeout (in hz) */ 8230224Ssam #define PS_DIOTIMO 1000 /* dio polling timeout */ 83