Return to onewirereg.h CVS log

Up to [local] / sys / dev / onewire

Annotation of sys/dev/onewire/onewirereg.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: onewirereg.h,v 1.1 2006/03/04 16:27:03 grange Exp $   */
                      2:
                      3: /*
                      4:  * Copyright (c) 2006 Alexander Yurchenko <grange@openbsd.org>
                      5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18:
                     19: #ifndef _DEV_ONEWIRE_ONEWIREREG_H_
                     20: #define _DEV_ONEWIRE_ONEWIREREG_H_
                     21:
                     22: /*
                     23:  * 1-Wire bus protocol definitions.
                     24:  */
                     25:
                     26: /*
                     27:  * 64-bit ROM section.
                     28:  */
                     29:
                     30: /* Family code */
                     31: #define ONEWIRE_ROM_FAMILY(x)          ((x) & 0xff)
                     32: #define ONEWIRE_ROM_FAMILY_TYPE(x)     ((x) & 0x7f)
                     33: #define ONEWIRE_ROM_FAMILY_CUSTOM(x)   (((x) >> 7) & 0x1)
                     34:
                     35: /* Serial number */
                     36: #define ONEWIRE_ROM_SN(x)              (((x) >> 8) & 0xffffffffffffULL)
                     37:
                     38: /* CRC */
                     39: #define ONEWIRE_ROM_CRC(x)             (((x) >> 56) & 0xff)
                     40:
                     41: /*
                     42:  * Command set.
                     43:  */
                     44:
                     45: /* ROM commands */
                     46: #define ONEWIRE_CMD_READ_ROM           0x33
                     47: #define ONEWIRE_CMD_SKIP_ROM           0xcc
                     48: #define ONEWIRE_CMD_MATCH_ROM          0x55
                     49: #define ONEWIRE_CMD_SEARCH_ROM         0xf0
                     50: #define ONEWIRE_CMD_OVERDRIVE_SKIP_ROM 0x3c
                     51: #define ONEWIRE_CMD_OVERDRIVE_MATCH_ROM        0x69
                     52:
                     53: /* Scratchpad commands */
                     54: #define ONEWIRE_CMD_READ_SCRATCHPAD    0xaa
                     55: #define ONEWIRE_CMD_WRITE_SCRATCHPAD   0x0f
                     56: #define ONEWIRE_CMD_COPY_SCRATCHPAD    0x55
                     57:
                     58: /* Memory commands */
                     59: #define ONEWIRE_CMD_READ_MEMORY                0xf0
                     60: #define ONEWIRE_CMD_WRITE_MEMORY       0x0f
                     61: #define ONEWIRE_CMD_EXT_READ_MEMORY    0xa5
                     62:
                     63: /* Password commands */
                     64: #define ONEWIRE_CMD_READ_SUBKEY                0x66
                     65: #define ONEWIRE_CMD_WRITE_SUBKEY       0x99
                     66: #define ONEWIRE_CMD_WRITE_PASSWORD     0x5a
                     67:
                     68: /* Status commands */
                     69: #define ONEWIRE_CMD_READ_STATUS                0xaa
                     70: #define ONEWIRE_CMD_WRITE_STATUS       0x55
                     71:
                     72: #endif /* !_DEV_ONEWIRE_ONEWIREREG_H_ */