/* $OpenBSD: ofw_machdep.h,v 1.3 2003/06/02 16:16:27 miod Exp $ */
/*
* Copyright (c) 2002, Miodrag Vallat.
*
* 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.
*
*/
/*
* Various console variables...
*/
extern int cons_displaytype;
extern bus_space_tag_t cons_membus;
extern bus_space_handle_t cons_display_mem_h;
extern bus_space_handle_t cons_display_ctl_h;
extern int cons_height, cons_width, cons_linebytes, cons_depth;
extern int cons_display_ofh;
extern u_int32_t cons_addr;
extern int cons_backlight_available;
void ofwconprobe(void);
void ofwconsinit(void);
/*
* For some reason, setting the brightness under 0x29 from OF switches the
* backlight off, and it won't be switched on again until you set the
* brightness above 0x33. All hail hysteresis! -- miod
*/
#define MIN_BRIGHTNESS 0x34
#define MAX_BRIGHTNESS 0xff
#define STEP_BRIGHTNESS 8
#define DEFAULT_BRIGHTNESS 0x80
extern int cons_brightness;
void of_setbrightness(int);