f86e60008b
o Remove All Rights Reserved from my notices o imp@FreeBSD.org everywhere o regularize punctiation, eliminate date ranges o Make sure that it's clear that I don't claim All Rights reserved by listing All Rights Reserved on same line as other copyright holders (but not me). Other such holders are also listed last where it's clear.
77 lines
2.8 KiB
C
77 lines
2.8 KiB
C
/*-
|
|
* Copyright (c) 2015 M. Warner Losh <imp@FreeBSD.org>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice unmodified, this list of conditions, and the following
|
|
* disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef DEV_OW_OW_H
|
|
#define DEV_OW_OW_H 1
|
|
|
|
enum ow_device_ivars {
|
|
OW_IVAR_FAMILY,
|
|
OW_IVAR_ROMID
|
|
};
|
|
|
|
#define OW_ACCESSOR(var, ivar, type) \
|
|
__BUS_ACCESSOR(ow, var, OW, ivar, type);
|
|
|
|
OW_ACCESSOR(family, FAMILY, uint8_t)
|
|
OW_ACCESSOR(romid, ROMID, uint8_t *)
|
|
|
|
#undef OW_ACCSSOR
|
|
|
|
/*
|
|
* The following likely should be in the own.h file, but needs to be here to
|
|
* avoid recursive issues when defining the own_if.m interface.
|
|
*/
|
|
|
|
/*
|
|
* Generalized command structure for a 1wire bus transaction. Not all possible
|
|
* transactions on the 1wire bus can be represented here (a notable exception
|
|
* being both the search ROM commands), but most of them can be, allowing for
|
|
* general transactions from userland. A lower-level interface to the link
|
|
* layer is also provided.
|
|
*/
|
|
#define MAX_ROM 10
|
|
#define MAX_XPT 32
|
|
#define MAX_READ 32
|
|
struct ow_cmd
|
|
{
|
|
uint32_t flags; /* Various flags */
|
|
#define OW_FLAG_OVERDRIVE 1 /* Send xpt stuff overdrive speed */
|
|
#define OW_FLAG_READ_BIT 2 /* Read a single bit after xpt_cmd */
|
|
uint8_t rom_len; /* Number of ROM bytes to send */
|
|
uint8_t rom_cmd[MAX_ROM]; /* Rom command to send */
|
|
uint8_t rom_read_len; /* Number of bytes to read */
|
|
uint8_t rom_read[MAX_ROM]; /* Extra bytes read */
|
|
uint8_t xpt_len; /* Total transport bytes to send */
|
|
uint8_t xpt_cmd[MAX_XPT]; /* Device specific command to send, if flagged */
|
|
uint8_t xpt_read_len; /* Number of bytes to read after */
|
|
uint8_t xpt_read[MAX_READ]; /* Buffer for read bytes */
|
|
};
|
|
|
|
typedef uint64_t romid_t;
|
|
|
|
#endif /* DEV_OW_OW_H */
|