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Report the VGA/NTSC RGB/composite mode of the display.

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This commit is contained in:
thorpej 2001-02-02 03:07:29 +00:00
parent ef2315d256
commit 2ae9f715f6
1 changed files with 20 additions and 14 deletions
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34
sys/arch/dreamcast/dev/pvr.c
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@ -1,4 +1,4 @@
/* $NetBSD: pvr.c,v 1.4 2001/02/01 01:25:56 thorpej Exp $ */
/* $NetBSD: pvr.c,v 1.5 2001/02/02 03:07:29 thorpej Exp $ */
/*-
* Copyright (c) 2001 Marcus Comstedt.
@ -65,7 +65,7 @@
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: pvr.c,v 1.4 2001/02/01 01:25:56 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: pvr.c,v 1.5 2001/02/02 03:07:29 thorpej Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -104,10 +104,14 @@ struct fb_devconfig {
int dc_rowbytes; /* bytes in a FB scan line */
vaddr_t dc_videobase; /* base of flat frame buffer */
int dc_blanked; /* currently has video disabled */
int dc_dispflags; /* display flags */
struct rasops_info rinfo;
};
#define PVR_RGBMODE 0x01 /* RGB or composite */
#define PVR_VGAMODE 0x02 /* VGA */
struct pvr_softc {
struct device sc_dev;
struct fb_devconfig *sc_dc; /* device configuration */
@ -190,6 +194,7 @@ pvr_getdevconfig(struct fb_devconfig *dc)
dc->dc_rowbytes = dc->dc_wid * (dc->dc_depth / 8);
dc->dc_videobase = dc->dc_vaddr;
dc->dc_blanked = 0;
dc->dc_dispflags = 0;
/* Clear the screen. */
for (i = 0; i < dc->dc_ht * dc->dc_rowbytes; i += sizeof(u_int32_t))
@ -250,8 +255,11 @@ pvr_attach(struct device *parent, struct device *self, void *aux)
M_WAITOK);
pvr_getdevconfig(sc->sc_dc);
}
printf(": %d x %d, %dbpp\n", sc->sc_dc->dc_wid, sc->sc_dc->dc_ht,
sc->sc_dc->dc_depth);
printf(": %d x %d, %dbpp, %s, %s\n", sc->sc_dc->dc_wid,
sc->sc_dc->dc_ht, sc->sc_dc->dc_depth,
/* XXX PAL? */
(sc->sc_dc->dc_dispflags & PVR_VGAMODE) ? "VGA" : "NTSC",
(sc->sc_dc->dc_dispflags & PVR_RGBMODE) ? "RGB" : "composite");
/* XXX Colormap initialization? */
@ -357,7 +365,7 @@ pvr_show_screen(void *v, void *cookie, int waitok,
}
static void
pvr_check_cable(int *vgamode_p, int *rgbmode_p)
pvr_check_cable(struct fb_devconfig *dc)
{
__volatile u_int32_t *porta =
(__volatile u_int32_t *)0xff80002c;
@ -370,11 +378,9 @@ pvr_check_cable(int *vgamode_p, int *rgbmode_p)
v = ((*(__volatile u_int16_t *)(porta + 1)) >> 8) & 3;
if ((v & 2) == 0)
*vgamode_p = *rgbmode_p = 1;
else {
*vgamode_p = 0;
*rgbmode_p = (v & 1) ? 0 : 1;
}
dc->dc_dispflags |= PVR_VGAMODE|PVR_RGBMODE;
else if ((v & 1) == 0)
dc->dc_dispflags |= PVR_RGBMODE;
}
void
@ -384,14 +390,13 @@ pvrinit(struct fb_devconfig *dc)
SH3_PHYS_TO_P2SEG(0x005f8000);
int display_lines_per_field = 240;
int modulo = 1, voffset;
int vgamode, rgbmode;
pvr_check_cable(&vgamode, &rgbmode);
pvr_check_cable(dc);
pvr[8/4] = 0; /* reset */
pvr[0x40/4] = 0; /* black border */
if (vgamode) {
if (dc->dc_dispflags & PVR_VGAMODE) {
pvr[0x44/4] = 0x800004; /* 31kHz, RGB565 */
pvr[0xd0/4] = 0x100; /* video output */
display_lines_per_field = 480;
@ -420,7 +425,8 @@ pvrinit(struct fb_devconfig *dc)
/* RGB / composite */
*(__volatile u_int32_t *)
SH3_PHYS_TO_P2SEG(0x00702c00) = (rgbmode ? 0 : 3) << 8;
SH3_PHYS_TO_P2SEG(0x00702c00) =
((dc->dc_dispflags & PVR_RGBMODE) ? 0 : 3) << 8;
pvr[0x44/4] |= 1; /* display on */
}