/* * $XConsortium: skyHdwr.c,v 1.6 91/12/11 21:24:50 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 #include #include #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); }