projects / simh.git / blame
| Commit | Line | Data |
|---|---|---|
| 196ba1fc PH |
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 |