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Initialize video parameters if the board is not yet running. Useful if 

the cg3 is not the console.
This commit is contained in:
pk 1996-05-31 09:59:22 +00:00
parent a16f5e70fa
commit 460d3403be
1 changed files with 32 additions and 1 deletions
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33
sys/arch/sparc/dev/cgthree.c
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@ -1,4 +1,4 @@
/* $NetBSD: cgthree.c,v 1.27 1996/04/01 17:30:03 christos Exp $ */
/* $NetBSD: cgthree.c,v 1.28 1996/05/31 09:59:22 pk Exp $ */
/*
* Copyright (c) 1992, 1993
@ -116,6 +116,20 @@ static void cgthreeloadcmap __P((struct cgthree_softc *, int, int));
static void cgthree_set_video __P((struct cgthree_softc *, int));
static int cgthree_get_video __P((struct cgthree_softc *));
/* Video control parameters */
struct cg3_videoctrl {
unsigned char sense; /* Monitor sense value */
unsigned char vctrl[12];
} cg3_videoctrl[] = {
/* Missing entries: sense 0x10, 0x30, 0x50 */
{ 0x40, /* this happens to be my 19'' 1152x900 gray-scale monitor */
{0xbb, 0x2b, 0x3, 0xb, 0xb3, 0x3, 0xaf, 0x2b, 0x2, 0xa, 0xff, 0x1}
},
{ 0x00, /* default? must be last */
{0xbb, 0x2b, 0x3, 0xb, 0xb3, 0x3, 0xaf, 0x2b, 0x2, 0xa, 0xff, 0x1}
}
};
/*
* Match a cgthree.
*/
@ -212,6 +226,23 @@ cgthreeattach(parent, self, args)
mapiodev(ca->ca_ra.ra_reg, CG3REG_REG,
sizeof(struct fbcontrol), ca->ca_bustype);
/* Transfer video magic to board, if it's not running */
if ((sc->sc_fbc->fbc_ctrl & FBC_TIMING) == 0)
for (i = 0; i < sizeof(cg3_videoctrl)/sizeof(cg3_videoctrl[0]);
i++) {
volatile struct fbcontrol *fbc = sc->sc_fbc;
if ((fbc->fbc_status & FBS_MSENSE) ==
cg3_videoctrl[i].sense) {
int j;
printf(" setting video ctrl");
for (j = 0; j < 12; j++)
fbc->fbc_vcontrol[j] =
cg3_videoctrl[i].vctrl[j];
fbc->fbc_ctrl |= FBC_TIMING;
break;
}
}
sc->sc_phys = ca->ca_ra.ra_reg[0];
sc->sc_bustype = ca->ca_bustype;