diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2004-03-01 11:57:52 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2004-03-01 11:57:52 +0000 |
| commit | 2449ed33d4e23801606c4c42f199be052c3ae8fa (patch) | |
| tree | b5f40952ca5986cc24b72952e9bd88822b30beac /sys | |
| parent | ab9fc1c7b93ab11bf0d6252ebfbbf3cf05b9b54f (diff) | |
More readable DAC programming.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/sparc/dev/rfx.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/sys/arch/sparc/dev/rfx.c b/sys/arch/sparc/dev/rfx.c index c17dbd29cc7..b585a2eeae1 100644 --- a/sys/arch/sparc/dev/rfx.c +++ b/sys/arch/sparc/dev/rfx.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rfx.c,v 1.2 2004/03/01 07:53:01 miod Exp $ */ +/* $OpenBSD: rfx.c,v 1.3 2004/03/01 11:57:51 miod Exp $ */ /* * Copyright (c) 2004, Miodrag Vallat. @@ -57,6 +57,8 @@ #include <sparc/dev/sbusvar.h> +#include <dev/ic/bt463reg.h> + /* * Configuration structure */ @@ -485,14 +487,19 @@ rfx_putcmap(struct rfx_cmap *cm, struct wsdisplay_cmap *rcm) void rfx_loadcmap(struct rfx_softc *sc, int start, int ncolors) { + u_int8_t *r, *g, *b; + + r = sc->sc_cmap.red + start; + g = sc->sc_cmap.green + start; + b = sc->sc_cmap.blue + start; - sc->sc_ramdac[0] = (start & 0xff); - sc->sc_ramdac[1] = 0; + start += BT463_IREG_CPALETTE_RAM; + sc->sc_ramdac[BT463_REG_ADDR_LOW] = start & 0xff; + sc->sc_ramdac[BT463_REG_ADDR_HIGH] = (start >> 8) & 0xff; while (ncolors-- != 0) { - sc->sc_ramdac[3] = sc->sc_cmap.red[start]; - sc->sc_ramdac[3] = sc->sc_cmap.green[start]; - sc->sc_ramdac[3] = sc->sc_cmap.blue[start]; - start++; + sc->sc_ramdac[BT463_REG_CMAP_DATA] = *r++; + sc->sc_ramdac[BT463_REG_CMAP_DATA] = *g++; + sc->sc_ramdac[BT463_REG_CMAP_DATA] = *b++; } } |