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1 | /*************************************************************************\r |
2 | * *\r | |
3 | * $Id: wd179x.h 1907 2008-05-21 07:04:17Z hharte $ *\r | |
4 | * *\r | |
5 | * Copyright (c) 2007-2008 Howard M. Harte. *\r | |
6 | * http://www.hartetec.com *\r | |
7 | * *\r | |
8 | * Permission is hereby granted, free of charge, to any person obtaining *\r | |
9 | * a copy of this software and associated documentation files (the *\r | |
10 | * "Software"), to deal in the Software without restriction, including *\r | |
11 | * without limitation the rights to use, copy, modify, merge, publish, *\r | |
12 | * distribute, sublicense, and/or sell copies of the Software, and to *\r | |
13 | * permit persons to whom the Software is furnished to do so, subject to *\r | |
14 | * the following conditions: *\r | |
15 | * *\r | |
16 | * The above copyright notice and this permission notice shall be *\r | |
17 | * included in all copies or substantial portions of the Software. *\r | |
18 | * *\r | |
19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, *\r | |
20 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *\r | |
21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND *\r | |
22 | * NONINFRINGEMENT. IN NO EVENT SHALL HOWARD M. HARTE BE LIABLE FOR ANY *\r | |
23 | * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, *\r | |
24 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE *\r | |
25 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *\r | |
26 | * *\r | |
27 | * Except as contained in this notice, the name of Howard M. Harte shall *\r | |
28 | * not be used in advertising or otherwise to promote the sale, use or *\r | |
29 | * other dealings in this Software without prior written authorization *\r | |
30 | * Howard M. Harte. *\r | |
31 | * *\r | |
32 | * SIMH Interface based on altairz80_hdsk.c, by Peter Schorn. *\r | |
33 | * *\r | |
34 | * Module Description: *\r | |
35 | * Generic Intel 8272 Disk Controller module for SIMH. *\r | |
36 | * *\r | |
37 | * Environment: *\r | |
38 | * User mode only *\r | |
39 | * *\r | |
40 | *************************************************************************/\r | |
41 | \r | |
42 | extern t_stat wd179x_attach(UNIT *uptr, char *cptr);\r | |
43 | extern t_stat wd179x_detach(UNIT *uptr);\r | |
44 | extern uint8 WD179X_Set_DMA(const uint32 dma_addr);\r | |
45 | extern uint8 WD179X_Read(const uint32 Addr);\r | |
46 | extern uint8 WD179X_Write(const uint32 Addr, uint8 cData);\r | |
47 | \r | |
48 | extern void wd179x_external_restore(void);\r | |
49 | \r | |
50 | #define WD179X_FDC_MSR 0 /* R=FDC Main Status Register, W=Drive Select Register */\r | |
51 | #define WD179X_FDC_DATA 1 /* R/W FDC Data Register */\r | |
52 | \r | |
53 | #define WD179X_STATUS 0\r | |
54 | #define WD179X_TRACK 1\r | |
55 | #define WD179X_SECTOR 2\r | |
56 | #define WD179X_DATA 3\r | |
57 | \r | |
58 | typedef struct {\r | |
59 | PNP_INFO pnp; /* Plug-n-Play Information */\r | |
60 | uint8 intrq; /* WD179X Interrupt Request Output (EOJ) */\r | |
61 | uint8 hld; /* WD179X Head Load Output */\r | |
62 | uint8 drq; /* WD179X DMA Request Output */\r | |
63 | uint8 ddens; /* WD179X Double-Density Input */\r | |
64 | uint8 fdc_head; /* H Head Number */\r | |
65 | uint8 sel_drive; /* Currently selected drive */\r | |
66 | uint8 drivetype; /* 8 or 5 depending on disk type. */\r | |
67 | } WD179X_INFO_PUB;\r |