Added PC-98 supports.

Submitted by:	Chiharu Shibata <chi@bd.mbn.or.jp>,
		Tomokazu HARADA <tkhara@osk4.3web.ne.jp> and
		yokota

2 files changed, 45 insertions, 0 deletions

diff --git a/sys/modules/splash/bmp/Makefile b/sys/modules/splash/bmp/Makefile
index af009a2..9c45c39 100644
--- a/sys/modules/splash/bmp/Makefile
+++ b/sys/modules/splash/bmp/Makefile
@@ -5,4 +5,8 @@ SRCS= 	splash_bmp.c
 
 NOMAN=
 
+.if ${MACHINE} == "pc98"
+CFLAGS+= -DPC98
+.endif
+
 .include <bsd.kmod.mk>
diff --git a/sys/modules/splash/bmp/splash_bmp.c b/sys/modules/splash/bmp/splash_bmp.c
index af495bc..e3db76d 100644
--- a/sys/modules/splash/bmp/splash_bmp.c
+++ b/sys/modules/splash/bmp/splash_bmp.c
@@ -35,9 +35,11 @@
 
 #include <dev/fb/fbreg.h>
 #include <dev/fb/splashreg.h>
+#ifndef PC98
 #include <dev/fb/vgareg.h>
 
 #include <isa/isareg.h>
+#endif
 
 #define FADE_TIMEOUT	15	/* sec */
 #define FADE_LEVELS	10
@@ -62,6 +64,15 @@ bmp_start(video_adapter_t *adp)
 {
     /* currently only 256-color modes are supported XXX */
     static int		modes[] = {
+#ifdef PC98
+    			/*
+			 * As 640x400 doesn't generally look great,
+			 * it's least preferred here.
+			 */
+			M_PC98_PEGC640x400,
+			M_PC98_PEGC640x480,
+			M_PC98_EGC640x400,
+#else
 			M_VESA_CG640x480,
 			M_VESA_CG800x600,
 			M_VESA_CG1024x768,
@@ -71,6 +82,7 @@ bmp_start(video_adapter_t *adp)
 			 * it's least preferred here.
 			 */
 			M_VGA_CG320,
+#endif		
 			-1,
     };
     video_info_t 	info;
@@ -226,6 +238,9 @@ typedef struct
     u_char	*vidmem;		/* video memory allocated for drawing */
     video_adapter_t *adp;
     int		bank;
+#ifdef PC98
+    u_char	prev_val;
+#endif
 } BMP_INFO;
 
 static BMP_INFO bmp_info;
@@ -257,6 +272,26 @@ bmp_SetPix(BMP_INFO *info, int x, int y, u_char val)
     x += (info->swidth - info->width) / 2;
 
     switch(info->sdepth) {
+#ifdef PC98
+    case 4:
+	x += (info->swidth - info->width) / 2;
+	sofs += (x >> 3);
+	bofs = x & 0x7;				/* offset within byte */
+
+	outb(0x7c, 0x80 | 0x40);	/* GRCG on & RMW mode */
+	if (val != info->prev_val) {
+	    outb(0x7e, (val & 1) ? 0xff : 0);	/* tile B */
+	    outb(0x7e, (val & 2) ? 0xff : 0);	/* tile R */
+	    outb(0x7e, (val & 4) ? 0xff : 0);	/* tile G */
+	    outb(0x7e, (val & 8) ? 0xff : 0);	/* tile I */
+
+	    info->prev_val = val;
+	}
+
+	*(info->vidmem+sofs) = (0x80 >> bofs);	/* write new bit */
+	outb(0x7c, 0);		/* GRCG off */
+	break;
+#else
     case 4:
     case 1:
 	/* EGA/VGA planar modes */
@@ -272,6 +307,7 @@ bmp_SetPix(BMP_INFO *info, int x, int y, u_char val)
 	outw(GDCIDX, (val << 8) | 0x00);	/* set/reset */
 	*(info->vidmem + sofs) ^= 0xff;		/* read-modify-write */
 	break;
+#endif
 
     case 8:
 	sofs += x;
@@ -567,10 +603,14 @@ bmp_Draw(video_adapter_t *adp)
 
     /* initialise the info structure for drawing */
     bmp_info.index = bmp_info.data;
+#ifdef PC98
+    bmp_info.prev_val = 255;
+#endif
     
     /* set the palette for our image */
     (*vidsw[adp->va_index]->load_palette)(adp, (u_char *)&bmp_info.palette);
 
+#ifndef PC98
     /* XXX: this is ugly, but necessary for EGA/VGA 1bpp/4bpp modes */
     if ((adp->va_type == KD_EGA) || (adp->va_type == KD_VGA)) {
 	inb(adp->va_crtc_addr + 6);		/* reset flip-flop */
@@ -588,6 +628,7 @@ bmp_Draw(video_adapter_t *adp)
 	if (bmp_info.sdepth == 1)
 	    outw(TSIDX, 0x0102);		/* unmask plane #0 */
     }
+#endif
 
     for (line = 0; (line < bmp_info.height) && bmp_info.index; line++) {
 	bmp_DecodeLine(&bmp_info, line);