fdreg.h revision 1.5
1 1.5 mycroft /* $NetBSD: fdreg.h,v 1.5 1996/02/01 22:32:27 mycroft 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 1.1 pk * 3. All advertising materials mentioning features or use of this software 16 1.1 pk * must display the following acknowledgement: 17 1.1 pk * This product includes software developed by the University of 18 1.1 pk * California, Berkeley and its contributors. 19 1.1 pk * 4. Neither the name of the University nor the names of its contributors 20 1.1 pk * may be used to endorse or promote products derived from this software 21 1.1 pk * without specific prior written permission. 22 1.1 pk * 23 1.1 pk * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 1.1 pk * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 1.1 pk * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 1.1 pk * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 1.1 pk * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 1.1 pk * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 1.1 pk * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 1.1 pk * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 1.1 pk * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 1.1 pk * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 1.1 pk * SUCH DAMAGE. 34 1.1 pk * 35 1.1 pk * @(#)fdreg.h 7.1 (Berkeley) 5/9/91 36 1.1 pk */ 37 1.1 pk 38 1.1 pk /* 39 1.1 pk * AT floppy controller registers and bitfields 40 1.1 pk */ 41 1.1 pk 42 1.1 pk /* uses NEC765 controller */ 43 1.4 cgd #include <dev/ic/nec765reg.h> 44 1.1 pk 45 1.5 mycroft #ifndef _LOCORE 46 1.3 pk struct fdreg_77 { 47 1.1 pk u_int8_t fd_statusA; 48 1.1 pk u_int8_t fd_statusB; 49 1.1 pk u_int8_t fd_dor; /* Digital Output Register (R/W) */ 50 1.1 pk u_int8_t fd_tdr; /* Tape Control Register (R/W) */ 51 1.1 pk u_int8_t fd_msr; /* Main Status Register (R) */ 52 1.1 pk #define fd_drs fd_msr /* Data Rate Select Register (W) */ 53 1.2 pk u_int8_t fd_fifo; /* Data (FIFO) register (R/W) */ 54 1.1 pk u_int8_t fd_reserved; 55 1.1 pk u_int8_t fd_dir; /* Digital Input Register (R) */ 56 1.1 pk #define fd_ccr fd_dir /* Configuration Control (W) */ 57 1.1 pk }; 58 1.1 pk 59 1.3 pk struct fdreg_72 { 60 1.1 pk u_int8_t fd_msr; /* Main Status Register (R) */ 61 1.1 pk #if already_a_define 62 1.1 pk #define fd_drs fd_msr /* Data Rate Select Register (W) */ 63 1.1 pk #endif 64 1.2 pk u_int8_t fd_fifo; /* Data (FIFO) register (R/W) */ 65 1.1 pk }; 66 1.1 pk 67 1.1 pk union fdreg { 68 1.3 pk struct fdreg_72 fun72; 69 1.3 pk struct fdreg_77 fun77; 70 1.1 pk }; 71 1.2 pk #endif 72 1.1 pk 73 1.2 pk /* Data Select Register bits */ 74 1.2 pk #define DRS_RESET 0x80 75 1.2 pk #define DRS_POWER 0x40 76 1.2 pk #define DRS_PLL 0x20 77 1.2 pk #define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */ 78 1.2 pk #define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */ 79 1.2 pk #define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */ 80 1.2 pk #define FDC_125KBPS 0x03 /* 125KBPS FM drive transfer rate */ 81 1.2 pk 82 1.2 pk /* Digital Output Register bits */ 83 1.1 pk #define FDO_FDSEL 0x03 /* floppy device select */ 84 1.1 pk #define FDO_FRST 0x04 /* floppy controller reset */ 85 1.1 pk #define FDO_FDMAEN 0x08 /* enable floppy DMA and Interrupt */ 86 1.1 pk #define FDO_MOEN(n) ((1 << n) * 0x10) /* motor enable */ 87 1.1 pk 88 1.1 pk #define FDI_DCHG 0x80 /* diskette has been changed */ 89 1.1 pk 90 1.1 pk /* XXX - find a place for these... */ 91 1.1 pk #define NE7CMD_CFG 0x13 92 1.1 pk #define CFG_EIS 0x40 93 1.1 pk #define CFG_EFIFO 0x20 94 1.1 pk #define CFG_POLL 0x10 95 1.2 pk #define CFG_THRHLD_MASK 0x0f 96 1.1 pk 97 1.1 pk #define NE7CMD_LOCK 0x14 98 1.1 pk #define CFG_LOCK 0x80 99 1.1 pk 100 1.1 pk #define NE7CMD_MOTOR 0x0b 101 1.1 pk #define MOTOR_ON 0x80 102 1.1 pk 103 1.1 pk #define NE7CMD_DUMPREG 0x0e 104 1.1 pk #define NE7CMD_VERSION 0x10 105 1.1 pk 106 1.2 pk #define ST1_OVERRUN 0x10 107 1.2 pk 108 1.2 pk 109
Indexes created Tue Sep 23 07:09:52 GMT 2025