projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 0880b18e | 1 | /* @(#)tmscpreg.h 7.1 (Berkeley) %G% */ |
| 88ac9a6a MK |
2 | |
| 3 | /* @(#)tmscpreg.h 1.1 11/2/84 84/09/25 */ | |
| 4 | ||
| 66cf8c22 KD |
5 | /**************************************************************** |
| 6 | * * | |
| 7 | * Licensed from Digital Equipment Corporation * | |
| 8 | * Copyright (c) * | |
| 9 | * Digital Equipment Corporation * | |
| 10 | * Maynard, Massachusetts * | |
| 11 | * 1985, 1986 * | |
| 12 | * All rights reserved. * | |
| 13 | * * | |
| 14 | * The Information in this software is subject to change * | |
| 15 | * without notice and should not be construed as a commitment * | |
| 16 | * by Digital Equipment Corporation. Digital makes no * | |
| 17 | * representations about the suitability of this software for * | |
| 18 | * any purpose. It is supplied "As Is" without expressed or * | |
| 19 | * implied warranty. * | |
| 20 | * * | |
| 21 | * If the Regents of the University of California or its * | |
| 22 | * licensees modify the software in a manner creating * | |
| 23 | * diriviative copyright rights, appropriate copyright * | |
| 24 | * legends may be placed on the drivative work in addition * | |
| 25 | * to that set forth above. * | |
| 26 | * * | |
| 27 | ****************************************************************/ | |
| 88ac9a6a MK |
28 | /* |
| 29 | * TMSCP registers and structures | |
| 30 | */ | |
| 31 | ||
| 32 | struct tmscpdevice { | |
| 33 | short tmscpip; /* initialization and polling */ | |
| 34 | short tmscpsa; /* status and address */ | |
| 35 | }; | |
| 36 | ||
| 37 | #define TMSCP_ERR 0100000 /* error bit */ | |
| 38 | #define TMSCP_STEP4 0040000 /* step 4 has started */ | |
| 39 | #define TMSCP_STEP3 0020000 /* step 3 has started */ | |
| 40 | #define TMSCP_STEP2 0010000 /* step 2 has started */ | |
| 41 | #define TMSCP_STEP1 0004000 /* step 1 has started */ | |
| 42 | #define TMSCP_NV 0002000 /* no host settable interrupt vector */ | |
| 43 | #define TMSCP_QB 0001000 /* controller supports Q22 bus */ | |
| 44 | #define TMSCP_DI 0000400 /* controller implements diagnostics */ | |
| e21477ad | 45 | #define TMSCP_OD 0000200 /* port allows odd host addr's in the buffer descriptor */ |
| 88ac9a6a MK |
46 | #define TMSCP_IE 0000200 /* interrupt enable */ |
| 47 | #define TMSCP_MP 0000100 /* port supports address mapping */ | |
| e21477ad MK |
48 | #define TMSCP_LF 0000002 /* host requests last fail response packet */ |
| 49 | #define TMSCP_PI 0000001 /* host requests adapter purge interrupts */ | |
| 88ac9a6a MK |
50 | #define TMSCP_GO 0000001 /* start operation, after init */ |
| 51 | ||
| 52 | ||
| 53 | /* | |
| 54 | * TMSCP Communications Area | |
| 55 | */ | |
| 56 | ||
| 57 | struct tmscpca { | |
| 58 | short ca_xxx1; /* unused */ | |
| 59 | char ca_xxx2; /* unused */ | |
| 60 | char ca_bdp; /* BDP to purge */ | |
| 61 | short ca_cmdint; /* command queue transition interrupt flag */ | |
| 62 | short ca_rspint; /* response queue transition interrupt flag */ | |
| 63 | long ca_rspdsc[NRSP];/* response descriptors */ | |
| 64 | long ca_cmddsc[NCMD];/* command descriptors */ | |
| 65 | }; | |
| 66 | ||
| 67 | #define ca_ringbase ca_rspdsc[0] | |
| 68 | ||
| 69 | #define TMSCP_OWN 0x80000000 /* port owns this descriptor (else host | |
| 70 | owns it) */ | |
| e21477ad | 71 | #define TMSCP_INT 0x40000000 /* allow interrupt on ring transition */ |
| 88ac9a6a | 72 | |
| e21477ad | 73 | #define TMSCP_MAP 0x80000000 /* modifier for mapped buffer descriptors */ |
| 88ac9a6a MK |
74 | |
| 75 | /* | |
| 76 | * TMSCP packet info (same as MSCP) | |
| 77 | */ | |
| 78 | struct mscp_header { | |
| 79 | short tmscp_msglen; /* length of MSCP packet */ | |
| 80 | char tmscp_credits; /* low 4 bits: credits, high 4 bits: msgtype */ | |
| 81 | char tmscp_vcid; /* virtual circuit id (connection id) */ | |
| 82 | }; |