Return to fdreg.h CVS log

Up to [local] / sys / arch / sparc64 / dev

Annotation of sys/arch/sparc64/dev/fdreg.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: fdreg.h,v 1.1 2005/03/09 18:41:49 miod Exp $  */
                      2: /*     $NetBSD: fdreg.h,v 1.9 2003/08/07 16:29:35 agc Exp $    */
                      3:
                      4: /*-
                      5:  * Copyright (c) 1991 The Regents of the University of California.
                      6:  * All rights reserved.
                      7:  *
                      8:  * Redistribution and use in source and binary forms, with or without
                      9:  * modification, are permitted provided that the following conditions
                     10:  * are met:
                     11:  * 1. Redistributions of source code must retain the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer.
                     13:  * 2. Redistributions in binary form must reproduce the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer in the
                     15:  *    documentation and/or other materials provided with the distribution.
                     16:  * 3. Neither the name of the University nor the names of its contributors
                     17:  *    may be used to endorse or promote products derived from this software
                     18:  *    without specific prior written permission.
                     19:  *
                     20:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     21:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     22:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     23:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     24:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     25:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     26:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     27:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     28:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     29:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     30:  * SUCH DAMAGE.
                     31:  *
                     32:  *     @(#)fdreg.h     7.1 (Berkeley) 5/9/91
                     33:  */
                     34:
                     35: /*
                     36:  * AT floppy controller registers and bitfields
                     37:  */
                     38:
                     39: /* uses NEC765 controller */
                     40: #include <dev/ic/nec765reg.h>
                     41:
                     42: /*
                     43:  * Register offsets for the 82077 controller.
                     44:  */
                     45: #define FDREG77_STATUSA        0
                     46: #define FDREG77_STATUSB        1
                     47: #define FDREG77_DOR    2               /* Digital Output Register (R/W) */
                     48: #define FDREG77_TDR    3               /* Tape Control Register (R/W) */
                     49: #define FDREG77_MSR    4               /* Main Status Register (R) */
                     50: #define FDREG77_DRS    4               /* Data Rate Select Register (W) */
                     51: #define FDREG77_FIFO   5               /* Data (FIFO) register (R/W) */
                     52: #define FDREG77_DIR    7               /* Digital Input Register (R) */
                     53: #define FDREG77_CCR    7               /* Configuration Control (W) */
                     54:
                     55: /* Data Select Register bits */
                     56: #define DRS_RESET      0x80
                     57: #define DRS_POWER      0x40
                     58: #define DRS_PLL                0x20
                     59: #define        FDC_500KBPS     0x00            /*   500KBPS MFM drive transfer rate */
                     60: #define        FDC_300KBPS     0x01            /*   300KBPS MFM drive transfer rate */
                     61: #define        FDC_250KBPS     0x02            /*   250KBPS MFM drive transfer rate */
                     62: #define        FDC_125KBPS     0x03            /*   125KBPS  FM drive transfer rate */
                     63:
                     64: /* Digital Output Register bits (modified on suns) */
                     65: #define        FDO_DS          0x01            /*  floppy device select (neg) */
                     66: #define        FDO_FRST        0x04            /*  floppy controller reset (neg) */
                     67: #define        FDO_FDMAEN      0x08            /*  enable floppy DMA and Interrupt */
                     68: #define        FDO_MOEN(n)     ((1 << n) << 4) /* motor enable */
                     69: #define FDO_DEN                0x40            /* Density select */
                     70: #define FDO_EJ         0x80            /* Eject disk */
                     71:
                     72: /* Digital Input Register bits */
                     73: #define        FDI_DCHG        0x80            /*   diskette has been changed */
                     74:
                     75: /* XXX - find a place for these... */
                     76: #define NE7CMD_CFG             0x13
                     77: #define CFG_EIS                        0x40
                     78: #define CFG_EFIFO              0x20
                     79: #define CFG_POLL               0x10
                     80: #define CFG_THRHLD_MASK                0x0f
                     81:
                     82: #define NE7CMD_LOCK            0x14
                     83: #define CFG_LOCK               0x80
                     84:
                     85: #define NE7CMD_MOTOR           0x0b
                     86: #define MOTOR_ON               0x80
                     87:
                     88: #define NE7CMD_DUMPREG         0x0e
                     89: #define NE7CMD_VERSION         0x10
                     90:
                     91: #define ST1_OVERRUN            0x10
                     92:
                     93: #define NE7_SPECIFY_NODMA      0x01