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/*
* $XConsortium: skyHdwr.c,v 1.5 91/10/17 14:42:17 eswu Exp $
*
* Copyright IBM Corporation 1987,1988,1989,1990,1991
*
* All Rights Reserved
*
* License to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of IBM not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission.
*
* IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS, AND NONINFRINGEMENT OF
* THIRD PARTY RIGHTS, IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
*/
/*
* skyHdwr.c - initialize hardware registers
*/
#include <sys/types.h>
#include <sys/hft.h>
#include <sys/entdisp.h>
#include "X.h"
#include "screenint.h"
#include "scrnintstr.h"
#include "pixmapstr.h"
#include "cursorstr.h"
#include "ibmScreen.h"
#include "ibmTrace.h"
#include "skyHdwr.h"
#include "skyReg.h"
int
skyHdwrInit(index)
int index;
{
TRACE(("skyHdwrInit\n"));
SKY_MODE_REG(index) = 0x0c; /* native motorola mode */
SKY_MEM_REG(index) = 0x0b; /* Motorola order, 8 bits/pixel */
SKY_WINCTRL_REG(index) = 0; /* No pc window */
/* Setup coprocessor to known state */
SKYBusyWait(index);
SKYSyncCoprocessorShadow(index);
SKYSetupScreenPix(index, PixSize8);
SKYTurnOffColorComp(index);
/* Clear Screen */
SKYSetALU(index, GXcopy);
SKYSetPlaneMask(index, 0xff);
SKYSetFgColor(index, 0);
SKYSetOpDim21(index, 1280, 1024);
SKYSetDstXY_PixelOp(index,
0, 0, /* Dst X,Y */
POForeReg | POStepBlt | PODestC | POPatFore | /* Pixel Op */
POMaskDis | POModeAll | POOct0);
SKYBusyWait(index);
/* Set the io register pointers */
SKY_SINDEX_REG(index) = 0x5600; /* disable the cursor in the DAC */
SKY_SINDEX_REG(index) = 0x6c04;
SKY_SINDEX_REG(index) = 0x5061; /* set CRTC to prepare for reset */
SKY_SINDEX_REG(index) = 0x5060; /* set CRTC to reset */
SKY_INT_REG(index) = 0x00;
SKY_INS_REG(index) = 0xff; /* clear all interrupt status bits */
SKY_VMC_REG(index) = 0x00; /* disable virtual memory interrupts */
SKY_VMS_REG(index) = 0xff; /* clear virtual memory interrupts */
/*
* set the memory configuration register to 64 bit serializer width, 256K
* x 4 module type, and 64 bit physical width for 64 bit wide serializer
*/
SKY_SINDEX_REG(index) = 0x009e;
/* initialize the DAC */
SKY_SINDEX_REG(index) = 0x6006; /* Put '01000011'b into Brooktree */
SKY_SINDEX_REG(index) = 0x6443; /* command register to initialize it. */
SKY_SINDEX_REG(index) = 0x6004; /* Turn on all bits in the read mask. */
SKY_SINDEX_REG(index) = 0x64FF;
SKY_SINDEX_REG(index) = 0x6005; /* 60 INDX REG = 05 */
SKY_SINDEX_REG(index) = 0x6400; /* 64 BLNK MSK = 00 */
SKY_SINDEX_REG(index) = 0x6007; /* 60 INDX REG = 07 */
SKY_SINDEX_REG(index) = 0x6400; /* 64 TEST REG = 00 */
/*
* The following values are taken from the Addendum to the SKYWAY 1 Video
* Subsystem Hardware Workbook dated October 3, 1988. However
*/
/* some values are taken from swstew.c, and don't match the addendum */
SKY_SINDEX_REG(index) = 0x5402; /* Clock Frequency must be set to
* 0x02 */
SKY_SINDEX_REG(index) = 0x3600; /* turn off the sprite control
* register */
SKY_SINDEX_REG(index) = 0x6400; /* use Brooktree Palette DAC control */
/* register to turn off palette mask */
SKY_SINDEX_REG(index) = 0x5103; /* 8 bits/pixel, x1 scaling factors */
/* pass two start */
SKY_SINDEX_REG(index) = 0x0102; /* Set 0.25 clock increment on */
SKY_SINDEX_REG(index) = 0x16db;
SKY_SINDEX_REG(index) = 0x18ac;
SKY_SINDEX_REG(index) = 0x1a93;
SKY_SINDEX_REG(index) = 0x1cc5;
SKY_SINDEX_REG(index) = 0x1e06;
SKY_SINDEX_REG(index) = 0x2a04;
/* pass two end */
SKY_SINDEX_REG(index) = 0x10db; /* 1760 pixels per scan line */
SKY_SINDEX_REG(index) = 0x129f; /* 1280 pixels in active picture area */
SKY_SINDEX_REG(index) = 0x149f; /* 1280 is end of picture border area */
SKY_SINDEX_REG(index) = 0x201f; /* vertical total regs set to 0x41f, */
SKY_SINDEX_REG(index) = 0x2104; /* which is 1056 lines */
SKY_SINDEX_REG(index) = 0x22ff; /* vertical display end registers are */
SKY_SINDEX_REG(index) = 0x2303; /* set to 0x3ff, which is 1024 lines */
SKY_SINDEX_REG(index) = 0x241f; /* vertical blanking start registers */
SKY_SINDEX_REG(index) = 0x2504; /* are set to 0x041f */
SKY_SINDEX_REG(index) = 0x26ff; /* vertical blanking end registers
* are */
SKY_SINDEX_REG(index) = 0x2703; /* set to 0x03ff */
SKY_SINDEX_REG(index) = 0x2801; /* vertical sync pulse start
* registers */
SKY_SINDEX_REG(index) = 0x2904; /* are set to 0x0401 */
SKY_SINDEX_REG(index) = 0x4000; /* set the Start Address registers to */
SKY_SINDEX_REG(index) = 0x4100; /* define the start address of the */
SKY_SINDEX_REG(index) = 0x4200; /* active picture to address 0 */
SKY_SINDEX_REG(index) = 0x43a0; /* buffer pitch registers set to 1280 */
SKY_SINDEX_REG(index) = 0x4400; /* pixels per scan line */
SKY_SINDEX_REG(index) = 0x64ff; /* turn on palette mask */
SKY_SINDEX_REG(index) = 0x2cff; /* vertical line compare lo */
SKY_SINDEX_REG(index) = 0x2d07; /* vertical line compare hi */
SKY_SINDEX_REG(index) = 0x5063; /* set Display Mode 1 register to: */
/* Normal operation */
/* No clock error */
/* Non interlaced */
/* Video Feature Interface disabled */
/* Composite syncs enabled */
/* + Vertical, - Horizontal */
/* sync polarity */
return (0);
}
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