/* @(#)tmscpreg.h 1.4 (2.11BSD) 1998/1/28 */ /**************************************************************** * * * Licensed from Digital Equipment Corporation * * Copyright (c) * * Digital Equipment Corporation * * Maynard, Massachusetts * * 1985, 1986 * * All rights reserved. * * * * The Information in this software is subject to change * * without notice and should not be construed as a commitment * * by Digital Equipment Corporation. Digital makes no * * representations about the suitability of this software for * * any purpose. It is supplied "As Is" without expressed or * * implied warranty. * * * * If the Regents of the University of California or its * * licensees modify the software in a manner creating * * diriviative copyright rights, appropriate copyright * * legends may be placed on the drivative work in addition * * to that set forth above. * * * ****************************************************************/ /* * TMSCP registers and structures */ struct tmscpdevice { short tmscpip; /* initialization and polling */ short tmscpsa; /* status and address */ }; #define TMSCP_ERR 0100000 /* error bit */ #define TMSCP_STEP4 0040000 /* step 4 has started */ #define TMSCP_STEP3 0020000 /* step 3 has started */ #define TMSCP_STEP2 0010000 /* step 2 has started */ #define TMSCP_STEP1 0004000 /* step 1 has started */ #define TMSCP_NV 0002000 /* no host settable interrupt vector */ #define TMSCP_QB 0001000 /* controller supports Q22 bus */ #define TMSCP_DI 0000400 /* controller implements diagnostics */ #define TMSCP_OD 0000200 /* port allows odd host addr's in the buffer descriptor */ #define TMSCP_IE 0000200 /* interrupt enable */ #define TMSCP_MP 0000100 /* port supports address mapping */ #define TMSCP_LF 0000002 /* host requests last fail response packet */ #define TMSCP_PI 0000001 /* host requests adapter purge interrupts */ #define TMSCP_GO 0000001 /* start operation, after init */ typedef struct { /* swap shorts for TMSCP controller */ short lsh; short hsh; } Trl; /* * TMSCP Communications Area */ /* * These defines were moved here so they could be shared between the * driver and the crash dump module. */ #ifndef NRSPL2 #define NRSPL2 3 /* log2 number of response packets */ #endif #ifndef NCMDL2 #define NCMDL2 3 /* log2 number of command packets */ #endif #define NRSP (1<<NRSPL2) #define NCMD (1<<NCMDL2) #define RINGBASE (4 * sizeof (short)) /* Size to map in when mapping a controller's command packet area */ #define MAPBUFDESC (((btoc(sizeof (struct tmscp)) - 1) << 8) | RW) struct tmscpca { short ca_xxx1; /* unused */ char ca_xxx2; /* unused */ char ca_bdp; /* BDP to purge */ short ca_cmdint; /* command queue transition interrupt flag */ short ca_rspint; /* response queue transition interrupt flag */ Trl ca_rspdsc[NRSP];/* response descriptors */ Trl ca_cmddsc[NCMD];/* command descriptors */ }; #define ca_ringbase ca_rspdsc[0] #define TMSCP_OWN 0x8000 /* port owns descriptor (else host owns it) */ #define TMSCP_INT 0x4000 /* allow interrupt on ring transition */