freebsd-dev/sys/dev/mc146818/mc146818var.h
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

68 lines
2.6 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2003 Izumi Tsutsui. All rights reserved.
*
* 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, 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.
*
* $NetBSD: mc146818var.h,v 1.7 2008/05/14 13:29:29 tsutsui Exp $
*
* $FreeBSD$
*/
struct mc146818_softc {
bus_space_tag_t sc_bst; /* bus space tag */
bus_space_handle_t sc_bsh; /* bus space handle */
struct mtx sc_mtx; /* hardware mutex */
u_char sc_rega; /* register A */
u_char sc_regb; /* register B */
u_int sc_year0; /* year counter offset */
u_int sc_flag; /* MD flags */
#define MC146818_NO_CENT_ADJUST 0x0001 /* don't adjust century */
#define MC146818_BCD 0x0002 /* use BCD mode */
#define MC146818_12HR 0x0004 /* use AM/PM mode */
/* MD chip register read/write functions */
u_int (*sc_mcread)(device_t dev, u_int reg);
void (*sc_mcwrite)(device_t dev, u_int reg, u_int val);
/* MD century get/set functions */
u_int (*sc_getcent)(device_t dev);
void (*sc_setcent)(device_t dev, u_int cent);
};
/* Default read/write functions */
u_int mc146818_def_read(device_t dev, u_int reg);
void mc146818_def_write(device_t dev, u_int reg, u_int val);
/* Chip attach function */
int mc146818_attach(device_t);
/* Methods for the clock interface */
#ifdef notyet
int mc146818_getsecs(device_t dev, int *secp);
#endif
int mc146818_gettime(device_t dev, struct timespec *ts);
int mc146818_settime(device_t dev, struct timespec *ts);