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/*
* Mach Operating System
* Copyright (c) 1992 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* File: sfb_misc.c
* Author: Alessandro Forin, Carnegie Mellon University
* Date: 11/92
*
* Driver for the PMAGB-BA smart color framebuffer
*
*/
#include <sfb.h>
#if (NSFB > 0)
#include <platforms.h>
/*
* NOTE: This driver relies heavily on the pm one, as well as the cfb.
*/
#include <device/device_types.h>
#include <chips/screen_defs.h>
#include <chips/pm_defs.h>
typedef pm_softc_t sfb_softc_t;
#include <chips/bt459.h>
#define bt459 cursor_registers
#ifdef DECSTATION
#include <mips/PMAX/pmagb_ba.h>
#endif
#ifdef FLAMINGO
#include <mips/PMAX/pmagb_ba.h> /* XXXX */
#endif
/*
* Initialize color map, for kernel use
*/
#define sfb_init_colormap cfb_init_colormap
/*
* Position cursor
*/
sfb_pos_cursor(
bt459_regmap_t *regs,
int x,
int y)
{
bt459_pos_cursor( regs, x + 368 - 219, y + 37 - 34);
}
/*
* Large viz small cursor
*/
#define sfb_small_cursor_to_large cfb_small_cursor_to_large
/*
* Device-specific set status
*/
#define sfb_set_status cfb_set_status
/*
* Hardware initialization
*/
sfb_init_screen(
sfb_softc_t *sfb)
{
bt459_init( sfb->bt459,
sfb->bt459 + (SFB_OFFSET_RESET - SFB_OFFSET_BT459),
4 /* 4:1 MUX */);
}
/*
* Do what's needed when X exits
*/
sfb_soft_reset(
screen_softc_t sc)
{
sfb_softc_t *sfb = (sfb_softc_t*) sc->hw_state;
user_info_t *up = sc->up;
extern cursor_sprite_t dc503_default_cursor;
/*
* Restore params in mapped structure
*/
pm_init_screen_params(sc,up);
up->row = up->max_row - 1;
up->dev_dep_2.pm.x26 = 2; /* you do not want to know */
up->dev_dep_1.pm.x18 = (short*)2;
/*
* Restore RAMDAC chip to default state
*/
sfb_init_screen(sfb);
/*
* Load kernel's cursor sprite: just use the same pmax one
*/
sfb_small_cursor_to_large(up, dc503_default_cursor);
bt459_cursor_sprite(sfb->bt459, up->dev_dep_2.pm.cursor_sprite);
/*
* Color map and cursor color
*/
sfb_init_colormap(sc);
}
#endif (NSFB > 0)
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