fdreg.h revision 1.10
1 1.10 christos /* $NetBSD: fdreg.h,v 1.10 2005/12/11 12:19:05 christos Exp $ */ 2 1.1 pk 3 1.1 pk /*- 4 1.1 pk * Copyright (c) 1991 The Regents of the University of California. 5 1.1 pk * All rights reserved. 6 1.1 pk * 7 1.1 pk * Redistribution and use in source and binary forms, with or without 8 1.1 pk * modification, are permitted provided that the following conditions 9 1.1 pk * are met: 10 1.1 pk * 1. Redistributions of source code must retain the above copyright 11 1.1 pk * notice, this list of conditions and the following disclaimer. 12 1.1 pk * 2. Redistributions in binary form must reproduce the above copyright 13 1.1 pk * notice, this list of conditions and the following disclaimer in the 14 1.1 pk * documentation and/or other materials provided with the distribution. 15 1.9 agc * 3. Neither the name of the University nor the names of its contributors 16 1.1 pk * may be used to endorse or promote products derived from this software 17 1.1 pk * without specific prior written permission. 18 1.1 pk * 19 1.1 pk * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 1.1 pk * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 1.1 pk * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 1.1 pk * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 1.1 pk * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 1.1 pk * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 1.1 pk * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 1.1 pk * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 1.1 pk * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 1.1 pk * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 1.1 pk * SUCH DAMAGE. 30 1.1 pk * 31 1.1 pk * @(#)fdreg.h 7.1 (Berkeley) 5/9/91 32 1.1 pk */ 33 1.1 pk 34 1.1 pk /* 35 1.1 pk * AT floppy controller registers and bitfields 36 1.1 pk */ 37 1.1 pk 38 1.1 pk /* uses NEC765 controller */ 39 1.4 cgd #include <dev/ic/nec765reg.h> 40 1.1 pk 41 1.7 pk /* 42 1.7 pk * Register offsets for the 82077 controller. 43 1.7 pk */ 44 1.7 pk #define FDREG77_STATUSA 0 45 1.7 pk #define FDREG77_STATUSB 1 46 1.7 pk #define FDREG77_DOR 2 /* Digital Output Register (R/W) */ 47 1.7 pk #define FDREG77_TDR 3 /* Tape Control Register (R/W) */ 48 1.7 pk #define FDREG77_MSR 4 /* Main Status Register (R) */ 49 1.7 pk #define FDREG77_DRS 4 /* Data Rate Select Register (W) */ 50 1.7 pk #define FDREG77_FIFO 5 /* Data (FIFO) register (R/W) */ 51 1.7 pk #define FDREG77_DIR 7 /* Digital Input Register (R) */ 52 1.7 pk #define FDREG77_CCR 7 /* Configuration Control (W) */ 53 1.7 pk 54 1.7 pk /* 55 1.8 pk * Register offsets for the 82072 controller. 56 1.7 pk */ 57 1.7 pk #define FDREG72_MSR 0 /* Main Status Register (R) */ 58 1.7 pk #define FDREG72_DRS 0 /* Data Rate Select Register (W) */ 59 1.7 pk #define FDREG72_FIFO 1 /* Data (FIFO) register (R/W) */ 60 1.7 pk 61 1.1 pk 62 1.2 pk /* Data Select Register bits */ 63 1.2 pk #define DRS_RESET 0x80 64 1.2 pk #define DRS_POWER 0x40 65 1.2 pk #define DRS_PLL 0x20 66 1.2 pk #define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */ 67 1.2 pk #define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */ 68 1.2 pk #define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */ 69 1.2 pk #define FDC_125KBPS 0x03 /* 125KBPS FM drive transfer rate */ 70 1.2 pk 71 1.6 pk /* Digital Output Register bits (modified on suns) */ 72 1.6 pk #define FDO_DS 0x01 /* floppy device select (neg) */ 73 1.6 pk #define FDO_FRST 0x04 /* floppy controller reset (neg) */ 74 1.1 pk #define FDO_FDMAEN 0x08 /* enable floppy DMA and Interrupt */ 75 1.6 pk #define FDO_MOEN(n) ((1 << n) << 4) /* motor enable */ 76 1.6 pk #define FDO_DEN 0x40 /* Density select */ 77 1.6 pk #define FDO_EJ 0x80 /* Eject disk */ 78 1.1 pk 79 1.8 pk /* Digital Input Register bits */ 80 1.1 pk #define FDI_DCHG 0x80 /* diskette has been changed */ 81 1.1 pk 82 1.1 pk /* XXX - find a place for these... */ 83 1.1 pk #define NE7CMD_CFG 0x13 84 1.1 pk #define CFG_EIS 0x40 85 1.1 pk #define CFG_EFIFO 0x20 86 1.1 pk #define CFG_POLL 0x10 87 1.2 pk #define CFG_THRHLD_MASK 0x0f 88 1.1 pk 89 1.1 pk #define NE7CMD_LOCK 0x14 90 1.1 pk #define CFG_LOCK 0x80 91 1.1 pk 92 1.1 pk #define NE7CMD_MOTOR 0x0b 93 1.1 pk #define MOTOR_ON 0x80 94 1.1 pk 95 1.1 pk #define NE7CMD_DUMPREG 0x0e 96 1.1 pk #define NE7CMD_VERSION 0x10 97 1.1 pk 98 1.2 pk #define ST1_OVERRUN 0x10 99 1.2 pk 100 1.6 pk #define NE7_SPECIFY_NODMA 0x01 101
Indexes created Wed Sep 24 05:09:52 GMT 2025