Merge with 2.3.47. Guys, this is buggy as shit. You've been warned.

1 files changed, 1057 insertions, 374 deletions

diff --git a/drivers/video/macfb.c b/drivers/video/macfb.c
index 282c47739..37a44ea5a 100644
--- a/drivers/video/macfb.c
+++ b/drivers/video/macfb.c
@@ -1,6 +1,22 @@
-/*
- *	We've been given MAC frame buffer info by the booter. Now go set it up
- */
+/* macfb.c: Generic framebuffer for Macs whose colourmaps/modes we
+   don't know how to set */
+
+/* (c) 1999 David Huggins-Daines <dhd@debian.org>
+
+   Primarily based on vesafb.c, by Gerd Knorr
+   (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
+
+   Also uses information and code from:
+   
+   The original macfb.c from Linux/mac68k 2.0, by Alan Cox, Juergen
+   Mellinger, Mikael Forselius, Michael Schmitz, and others.
+
+   valkyriefb.c, by Martin Costabel, Kevin Schoedel, Barry Nathan, Dan
+   Jacobowitz, Paul Mackerras, Fabio Riccardi, and Geert Uytterhoeven.
+   
+   This code is free software.  You may copy, modify, and distribute
+   it subject to the terms and conditions of the GNU General Public
+   License, version 2, or any later version, at your convenience. */
 
 #include <linux/module.h>
 #include <linux/kernel.h>
@@ -13,6 +29,7 @@
 #include <linux/delay.h>
 #include <linux/nubus.h>
 #include <linux/init.h>
+#include <linux/fb.h>
 
 #include <asm/setup.h>
 #include <asm/bootinfo.h>
@@ -20,16 +37,137 @@
 #include <asm/pgtable.h>
 #include <asm/irq.h>
 #include <asm/macintosh.h>
-#include <linux/fb.h>
+#include <asm/io.h>
+#include <asm/machw.h>
 
 #include <video/fbcon.h>
-/* conditionalize these ?? */
 #include <video/fbcon-mfb.h>
 #include <video/fbcon-cfb2.h>
 #include <video/fbcon-cfb4.h>
 #include <video/fbcon-cfb8.h>
+#include <video/fbcon-cfb16.h>
+#include <video/fbcon-cfb24.h>
+#include <video/fbcon-cfb32.h>
+
+#if defined(FBCON_HAS_CFB8) || defined(FBCON_HAS_CFB4) || defined(FBCON_HAS_CFB2)
+
+/* Common DAC base address for the LC, RBV, Valkyrie, and IIvx */
+#define DAC_BASE 0x50f24000
+
+/* Some addresses for the DAFB */
+#define DAFB_BASE 0xf9800200
+
+/* Address for the built-in Civic framebuffer in Quadra AVs */
+#define CIVIC_BASE 0x50f30800	/* Only tested on 660AV! */
+
+/* GSC (Gray Scale Controller) base address */
+#define GSC_BASE 0x50F20000
+
+/* CSC (Color Screen Controller) base address */
+#define CSC_BASE 0x50F20000
+
+static int (*macfb_setpalette) (unsigned int regno, unsigned int red,
+				unsigned int green, unsigned int blue) = NULL;
+static int valkyrie_setpalette (unsigned int regno, unsigned int red,
+				unsigned int green, unsigned int blue);
+static int dafb_setpalette (unsigned int regno, unsigned int red,
+			    unsigned int green, unsigned int blue);
+static int rbv_setpalette (unsigned int regno, unsigned int red,
+			   unsigned int green, unsigned int blue);
+static int mdc_setpalette (unsigned int regno, unsigned int red,
+			   unsigned int green, unsigned int blue);
+static int toby_setpalette (unsigned int regno, unsigned int red,
+			    unsigned int green, unsigned int blue);
+static int civic_setpalette (unsigned int regno, unsigned int red,
+			     unsigned int green, unsigned int blue);
+static int csc_setpalette (unsigned int regno, unsigned int red,
+			     unsigned int green, unsigned int blue);
+
+static volatile struct {
+	unsigned char addr;
+	/* Note: word-aligned */
+	char pad[3];
+	unsigned char lut;
+} *valkyrie_cmap_regs;
+
+static volatile struct {
+	unsigned char addr;
+	unsigned char lut;
+} *v8_brazil_cmap_regs;
+
+static volatile struct {
+	unsigned char addr;
+	char pad1[3]; /* word aligned */
+	unsigned char lut;
+	char pad2[3]; /* word aligned */
+	unsigned char cntl; /* a guess as to purpose */
+} *rbv_cmap_regs;
+
+static volatile struct {
+	unsigned long reset;
+	unsigned long pad1[3];
+	unsigned char pad2[3];
+	unsigned char lut;
+} *dafb_cmap_regs;
+
+static volatile struct {
+	unsigned char addr;	/* OFFSET: 0x00 */
+	unsigned char pad1[15];
+	unsigned char lut;	/* OFFSET: 0x10 */
+	unsigned char pad2[15];
+	unsigned char status;	/* OFFSET: 0x20 */
+	unsigned char pad3[7];
+	unsigned long vbl_addr;	/* OFFSET: 0x28 */
+	unsigned int  status2;	/* OFFSET: 0x2C */
+} *civic_cmap_regs;
+
+static volatile struct {
+	char    pad1[0x40];
+        unsigned char	clut_waddr;	/* 0x40 */
+        char    pad2;
+        unsigned char	clut_data;	/* 0x42 */
+        char	pad3[0x3];
+        unsigned char	clut_raddr;	/* 0x46 */
+} *csc_cmap_regs;
+
+/* We will leave these the way they are for the time being */
+struct mdc_cmap_regs {
+	char pad1[0x200200];
+	unsigned char addr;
+	char pad2[6];
+	unsigned char lut;
+};
+
+struct toby_cmap_regs {
+	char pad1[0x90018];
+	unsigned char lut; /* TFBClutWDataReg, offset 0x90018 */
+	char pad2[3];
+	unsigned char addr; /* TFBClutAddrReg, offset 0x9001C */
+};
+
+struct jet_cmap_regs {
+	char pad1[0xe0e000];
+	unsigned char addr;
+	unsigned char lut;
+};
+
+#endif
+
+#define PIXEL_TO_MM(a)	(((a)*10)/28)	/* width in mm at 72 dpi */	
+
+static char* video_base;
+static int   video_size;
+static char* video_vbase;        /* mapped */
 
-#define arraysize(x)    (sizeof(x)/sizeof(*(x)))
+/* mode */
+static int  video_bpp;
+static int  video_width;
+static int  video_height;
+static int  video_type = FB_TYPE_PACKED_PIXELS;
+static int  video_visual;
+static int  video_linelength;
+static int  video_cmap_len;
+static int  video_slot = 0;
 
 static struct fb_var_screeninfo macfb_defined={
 	0,0,0,0,	/* W,H, W, H (virtual) load xres,xres_virtual*/
@@ -42,38 +180,36 @@ static struct fb_var_screeninfo macfb_defined={
 	{0,0,0},	/* transparency */
 	0,		/* standard pixel format */
 	FB_ACTIVATE_NOW,
-	274,195,	/* 14" monitor *Mikael Nykvist's anyway* */
-	0,		/* The only way to accelerate a mac is .. */
+	-1, -1,
+	FB_ACCEL_NONE,	/* The only way to accelerate a mac is .. */
 	0L,0L,0L,0L,0L,
 	0L,0L,0,	/* No sync info */
 	FB_VMODE_NONINTERLACED,
 	{0,0,0,0,0,0}
 };
 
-#define NUM_TOTAL_MODES		1
-#define NUM_PREDEF_MODES	1
-
 static struct display disp;
 static struct fb_info fb_info;
+static struct { u_short blue, green, red, pad; } palette[256];
+static union {
+#ifdef FBCON_HAS_CFB16
+    u16 cfb16[16];
+#endif
+#ifdef FBCON_HAS_CFB24
+    u32 cfb24[16];
+#endif
+#ifdef FBCON_HAS_CFB32
+    u32 cfb32[16];
+#endif
+} fbcon_cmap;
 
-static int inverse = 0;
-
-struct macfb_par
-{
-	void *unused;
-};
-
-static int currcon = 0;
-static int current_par_valid = 0;
-struct macfb_par current_par;
-
-static int mac_xres,mac_yres,mac_depth, mac_xbytes, mac_vxres;
-static unsigned long mac_videobase;
-static unsigned long mac_videosize;
+static int             inverse   = 0;
+static int             vidtest   = 0;
+static int             currcon   = 0;
 
-	/*
-	 * Open/Release the frame buffer device
-	 */
+/*
+ * Open/Release the frame buffer device
+ */
 
 static int macfb_open(struct fb_info *info, int user)
 {
@@ -90,105 +226,32 @@ static int macfb_release(struct fb_info *info, int user)
 	return(0);
 }
 
-static void macfb_encode_var(struct fb_var_screeninfo *var, 
-				struct macfb_par *par)
-{
-	memset(var, 0, sizeof(struct fb_var_screeninfo));
-	var->xres=mac_xres;
-	var->yres=mac_yres;
-	var->xres_virtual=mac_vxres;
-	var->yres_virtual=var->yres;
-	var->xoffset=0;
-	var->yoffset=0;
-	var->bits_per_pixel = mac_depth;
-	var->grayscale=0;
-	var->transp.offset=0;
-	var->transp.length=0;
-	var->transp.msb_right=0;
-	var->nonstd=0;
-	var->activate=0;
-	var->height= -1;
-	var->width= -1;
-	var->vmode=FB_VMODE_NONINTERLACED;
-	var->pixclock=0;
-	var->sync=0;
-	var->left_margin=0;
-	var->right_margin=0;
-	var->upper_margin=0;
-	var->lower_margin=0;
-	var->hsync_len=0;
-	var->vsync_len=0;
-	return;
-}
-
-
-static void macfb_get_par(struct macfb_par *par)
-{
-	*par=current_par;
-}
-
-static void macfb_set_par(struct macfb_par *par)
-{
-	current_par_valid=1;
-}
-
-static int fb_update_var(int con, struct fb_info *info)
+static int macfb_update_var(int con, struct fb_info *info)
 {
 	return 0;
 }
 
-static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive)
-{
-	struct macfb_par par;
-	
-	macfb_get_par(&par);
-	macfb_encode_var(var, &par);
-	return 0;
-}
-
-extern int console_loglevel;
-
-static void macfb_encode_fix(struct fb_fix_screeninfo *fix, 
-				struct macfb_par *par)
-{
-	memset(fix, 0, sizeof(struct fb_fix_screeninfo));
-	strcpy(fix->id,"Macintosh");
-
-	/*
-	 * fbmem.c accepts non page aligned mappings now!
-	 */
-	fix->smem_start=mac_videobase;
-	fix->smem_len=mac_videosize;
-	fix->type = FB_TYPE_PACKED_PIXELS;
-	if (mac_depth == 1)
-		fix->visual = FB_VISUAL_MONO01;
-	else
-		fix->visual = FB_VISUAL_STATIC_PSEUDOCOLOR;
-	fix->xpanstep=0;
-	fix->ypanstep=0;
-	fix->ywrapstep=0;
-	fix->line_length=mac_xbytes;
-	return;
-}
-
 static int macfb_get_fix(struct fb_fix_screeninfo *fix, int con,
 			 struct fb_info *info)
 {
-	struct macfb_par par;
-	macfb_get_par(&par);
-	macfb_encode_fix(fix, &par);
+	memset(fix, 0, sizeof(struct fb_fix_screeninfo));
+	strcpy(fix->id, "Mac Generic");
+
+	fix->smem_start = video_base;
+	fix->smem_len = video_size;
+	fix->type = video_type;
+	fix->visual = video_visual;
+	fix->xpanstep = 0;
+	fix->ypanstep = 0;
+	fix->line_length=video_linelength;
 	return 0;
 }
 
 static int macfb_get_var(struct fb_var_screeninfo *var, int con,
 			 struct fb_info *info)
 {
-	struct macfb_par par;
 	if(con==-1)
-	{
-		macfb_get_par(&par);
-		macfb_encode_var(var, &par);
-	}
+		memcpy(var, &macfb_defined, sizeof(struct fb_var_screeninfo));
 	else
 		*var=fb_display[con].var;
 	return 0;
@@ -204,9 +267,10 @@ static void macfb_set_disp(int con)
 	else
 		display = &disp;	/* used during initialization */
 
-	macfb_get_fix(&fix, con, 0);
+	macfb_get_fix(&fix, con, &fb_info);
 
-	display->screen_base = fix.smem_start;
+	memset(display, 0, sizeof(struct display));
+	display->screen_base = video_vbase;
 	display->visual = fix.visual;
 	display->type = fix.type;
 	display->type_aux = fix.type_aux;
@@ -215,235 +279,586 @@ static void macfb_set_disp(int con)
 	display->line_length = fix.line_length;
 	display->next_line = fix.line_length;
 	display->can_soft_blank = 0;
-	display->inverse =
-	    (fix.visual == FB_VISUAL_MONO01 ? !inverse : inverse);
+	display->inverse = inverse;
+	display->scrollmode = SCROLL_YREDRAW;
+	macfb_get_var(&display->var, -1, &fb_info);
 
-	switch (mac_depth) {
+	switch (video_bpp) {
 #ifdef FBCON_HAS_MFB
-	    case 1:
+	case 1:
 		display->dispsw = &fbcon_mfb;
 		break;
 #endif
 #ifdef FBCON_HAS_CFB2
-	    case 2:
+	case 2:
 		display->dispsw = &fbcon_cfb2;
 		break;
 #endif
 #ifdef FBCON_HAS_CFB4
-	    case 4:
+	case 4:
 		display->dispsw = &fbcon_cfb4;
 		break;
 #endif
 #ifdef FBCON_HAS_CFB8
-	    case 8:
+	case 8:
 		display->dispsw = &fbcon_cfb8;
 		break;
 #endif
-	    default:
-		display->dispsw = &fbcon_dummy;
+#ifdef FBCON_HAS_CFB16
+	case 15:
+	case 16:
+		display->dispsw = &fbcon_cfb16;
+		display->dispsw_data = fbcon_cmap.cfb16;
+		break;
+#endif
+#ifdef FBCON_HAS_CFB24
+	case 24:
+		display->dispsw = &fbcon_cfb24;
+		display->dispsw_data = fbcon_cmap.cfb24;
 		break;
+#endif
+#ifdef FBCON_HAS_CFB32
+	case 32:
+		display->dispsw = &fbcon_cfb32;
+		display->dispsw_data = fbcon_cmap.cfb32;
+		break;
+#endif
+	default:
+		display->dispsw = &fbcon_dummy;
+		return;
 	}
 }
 
 static int macfb_set_var(struct fb_var_screeninfo *var, int con,
 			 struct fb_info *info)
 {
-	int err;
+	static int first = 1;
+
+	if (var->xres           != macfb_defined.xres           ||
+	    var->yres           != macfb_defined.yres           ||
+	    var->xres_virtual   != macfb_defined.xres_virtual   ||
+	    var->yres_virtual   != macfb_defined.yres           ||
+	    var->xoffset                                        ||
+	    var->bits_per_pixel != macfb_defined.bits_per_pixel ||
+	    var->nonstd) {
+		if (first) {
+			printk("macfb does not support changing the video mode\n");
+			first = 0;
+		}
+		return -EINVAL;
+	}
+
+	if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_TEST)
+		return 0;
+
+	if (var->yoffset)
+		return -EINVAL;
+	return 0;
+}
+
+#if defined(FBCON_HAS_CFB8) || defined(FBCON_HAS_CFB4) || defined(FBCON_HAS_CFB2)
+static int valkyrie_setpalette (unsigned int regno, unsigned int red,
+				unsigned int green, unsigned int blue)
+{
+	unsigned long flags;
+	
+	red >>= 8;
+	green >>= 8;
+	blue >>= 8;
+
+	save_flags(flags);
+	cli();
+	
+	/* tell clut which address to fill */
+	writeb(regno, &valkyrie_cmap_regs->addr);
+	nop();
+
+	/* send one color channel at a time */
+	writeb(red, &valkyrie_cmap_regs->lut);
+	nop();
+	writeb(green, &valkyrie_cmap_regs->lut);
+	nop();
+	writeb(blue, &valkyrie_cmap_regs->lut);
+
+	restore_flags(flags);
+
+	return 0;
+}
+
+/* Unlike the Valkyrie, the DAFB cannot set individual colormap
+   registers.  Therefore, we do what the MacOS driver does (no
+   kidding!) and simply set them one by one until we hit the one we
+   want. */
+static int dafb_setpalette (unsigned int regno, unsigned int red,
+			    unsigned int green, unsigned int blue)
+{
+	/* FIXME: really, really need to use ioremap() here,
+           phys_to_virt() doesn't work anymore */
+	static int lastreg = -1;
+	unsigned long flags;
+	
+	red >>= 8;
+	green >>= 8;
+	blue >>= 8;
+
+	save_flags(flags);
+	cli();
+	
+	/* fbcon will set an entire colourmap, but X won't.  Hopefully
+	   this should accomodate both of them */
+	if (regno != lastreg+1) {
+		int i;
+		
+		/* Stab in the dark trying to reset the CLUT pointer */
+		writel(0, &dafb_cmap_regs->reset);
+		nop();
+		
+		/* Loop until we get to the register we want */
+		for (i = 0; i < regno; i++) {
+			writeb(palette[i].red >> 8, &dafb_cmap_regs->lut);
+			nop();
+			writeb(palette[i].green >> 8, &dafb_cmap_regs->lut);
+			nop();
+			writeb(palette[i].blue >> 8, &dafb_cmap_regs->lut);
+			nop();
+		}
+	}
+		
+	writeb(red, &dafb_cmap_regs->lut);
+	nop();
+	writeb(green, &dafb_cmap_regs->lut);
+	nop();
+	writeb(blue, &dafb_cmap_regs->lut);
+	
+	restore_flags(flags);
+	
+	lastreg = regno;
+	return 0;
+}
+
+/* V8 and Brazil seem to use the same DAC.  Sonora does as well. */
+static int v8_brazil_setpalette (unsigned int regno, unsigned int red,
+				 unsigned int green, unsigned int blue)
+{
+	unsigned char _red  =red>>8;
+	unsigned char _green=green>>8;
+	unsigned char _blue =blue>>8;
+	unsigned char _regno;
+	unsigned long flags;
+
+	if (video_bpp>8) return 1; /* failsafe */
+
+	save_flags(flags);
+	cli();
+
+	/* On these chips, the CLUT register numbers are spread out
+	   across the register space.  Thus:
+
+	   In 8bpp, all regnos are valid.
+	   
+	   In 4bpp, the regnos are 0x0f, 0x1f, 0x2f, etc, etc
+	   
+	   In 2bpp, the regnos are 0x3f, 0x7f, 0xbf, 0xff */
+  	_regno = (regno<<(8-video_bpp)) | (0xFF>>video_bpp);
+	writeb(_regno, &v8_brazil_cmap_regs->addr); nop();
+
+	/* send one color channel at a time */
+	writeb(_red, &v8_brazil_cmap_regs->lut); nop();
+	writeb(_green, &v8_brazil_cmap_regs->lut); nop();
+	writeb(_blue, &v8_brazil_cmap_regs->lut);
+
+	restore_flags(flags);
+	
+	return 0;
+}
+
+static int rbv_setpalette (unsigned int regno, unsigned int red,
+			   unsigned int green, unsigned int blue)
+{
+	/* use MSBs */
+	unsigned char _red  =red>>8;
+	unsigned char _green=green>>8;
+	unsigned char _blue =blue>>8;
+	unsigned char _regno;
+	unsigned long flags;
+
+	if (video_bpp>8) return 1; /* failsafe */
+
+	save_flags(flags);
+	cli();
+	
+	/* From the VideoToolbox driver.  Seems to be saying that
+	 * regno #254 and #255 are the important ones for 1-bit color,
+	 * regno #252-255 are the important ones for 2-bit color, etc.
+	 */
+	_regno = regno + (256-(1<<video_bpp));
+
+	/* reset clut? (VideoToolbox sez "not necessary") */
+	writeb(0xFF, &rbv_cmap_regs->cntl); nop();
+	
+	/* tell clut which address to use. */
+	writeb(_regno, &rbv_cmap_regs->addr); nop();
+	
+	/* send one color channel at a time. */
+	writeb(_red,   &rbv_cmap_regs->lut); nop();
+	writeb(_green, &rbv_cmap_regs->lut); nop();
+	writeb(_blue,  &rbv_cmap_regs->lut);
+	
+	restore_flags(flags);
+	/* done. */
+	return 0;
+}
+
+/* Macintosh Display Card (8x24) */
+static int mdc_setpalette(unsigned int regno, unsigned int red,
+			  unsigned int green, unsigned int blue)
+{
+	volatile struct mdc_cmap_regs *cmap_regs =
+		nubus_slot_addr(video_slot);
+	/* use MSBs */
+	unsigned char _red  =red>>8;
+	unsigned char _green=green>>8;
+	unsigned char _blue =blue>>8;
+	unsigned char _regno=regno;
+	unsigned long flags;
+
+	save_flags(flags);
+	cli();
+	
+	/* the nop's are there to order writes. */
+	writeb(_regno, &cmap_regs->addr); nop();
+	writeb(_red, &cmap_regs->lut);    nop();
+	writeb(_green, &cmap_regs->lut);  nop();
+	writeb(_blue, &cmap_regs->lut);
+
+	restore_flags(flags);
+	return 0;
+}
+
+/* Toby frame buffer */
+static int toby_setpalette(unsigned int regno, unsigned int red,
+			   unsigned int green, unsigned int blue)
+{
+	volatile struct toby_cmap_regs *cmap_regs =
+		nubus_slot_addr(video_slot);
+	/* use MSBs */
+	unsigned char _red  =~(red>>8);
+	unsigned char _green=~(green>>8);
+	unsigned char _blue =~(blue>>8);
+	unsigned char _regno = (regno<<(8-video_bpp)) | (0xFF>>video_bpp);
+	unsigned long flags;
+
+	save_flags(flags);
+	cli();
 	
-	if ((err=do_fb_set_var(var, 1)))
-		return err;
+	writeb(_regno, &cmap_regs->addr); nop();
+	writeb(_red, &cmap_regs->lut);    nop();
+	writeb(_green, &cmap_regs->lut);  nop();
+	writeb(_blue, &cmap_regs->lut);
+
+	restore_flags(flags);
+	return 0;
+}
+
+/* Jet frame buffer */
+static int jet_setpalette(unsigned int regno, unsigned int red,
+			  unsigned int green, unsigned int blue)
+{
+	volatile struct jet_cmap_regs *cmap_regs =
+		nubus_slot_addr(video_slot);
+	/* use MSBs */
+	unsigned char _red   = (red>>8);
+	unsigned char _green = (green>>8);
+	unsigned char _blue  = (blue>>8);
+	unsigned long flags;
+
+	save_flags(flags);
+	cli();
+	
+	writeb(regno, &cmap_regs->addr); nop();
+	writeb(_red, &cmap_regs->lut); nop();
+	writeb(_green, &cmap_regs->lut); nop();
+	writeb(_blue, &cmap_regs->lut);
+
+	restore_flags(flags);
 	return 0;
 }
 
 /*
- * Color map handling - hardcoded maps!! 
+ * Civic framebuffer -- Quadra AV built-in video.  A chip
+ * called Sebastian holds the actual color palettes, and
+ * apparently, there are two different banks of 512K RAM 
+ * which can act as separate framebuffers for doing video
+ * input and viewing the screen at the same time!  The 840AV
+ * Can add another 1MB RAM to give the two framebuffers 
+ * 1MB RAM apiece.
  *
- * 2.0 color map primitives, copied from atafb.c
- */
- 
-/*
- * should be kmalloc'ed on request
+ * FIXME: this doesn't seem to work anymore.
  */
-static short red256[256], green256[256], blue256[256];
-
-static short red16[]=
-	{ 0x0000,0x0000,0x0000,0x0000,0x8080,0x8080,0x8080,0xc0c0,
-	  0x8080,0x0000,0x0000,0x0000,0xffff,0xffff,0xffff,0xffff};
-static short green16[]=
-	{ 0x0000,0x0000,0x8080,0x8080,0x0000,0x0000,0x8080,0xc0c0,
-	  0x8080,0x0000,0xffff,0xffff,0x0000,0x0000,0xffff,0xffff};
-static short blue16[]=
-	{ 0x0000,0x8080,0x0000,0x8080,0x0000,0x8080,0x0000,0xc0c0,
-	  0x8080,0xffff,0x0000,0xffff,0x0000,0xffff,0x0000,0xffff};
-
-static short red4[]=
-	{ 0x0000,0x8080,0xffff,0xffff};
-static short green4[]=
-	{ 0x0000,0x8080,0x0000,0xffff};
-static short blue4[]=
-	{ 0x0000,0x8080,0x0000,0xffff};
-
-static short red2[]=
-	{ 0x0000,0xffff};
-static short green2[]=
-	{ 0x0000,0xffff};
-static short blue2[]=
-	{ 0x0000,0xffff};
-
-struct fb_cmap default_256_colors = { 0, 256, red256, green256, blue256, NULL };
-struct fb_cmap default_16_colors  = { 0, 16, red16, green16, blue16, NULL };
-struct fb_cmap default_4_colors   = { 0, 4, red4, green4, blue4, NULL };
-struct fb_cmap default_2_colors   = { 0, 2, red2, green2, blue2, NULL };
-
-static int mac_set_cmap256(struct fb_cmap* cmap)
+static int civic_setpalette (unsigned int regno, unsigned int red,
+			     unsigned int green, unsigned int blue)
 {
-	int i,start;
-	unsigned short *red,*green,*blue;
-	unsigned short cval[] = {0xffff, 0xcccc, 0x9999, 
-				 0x6666, 0x3333, 0x0000 };
-	unsigned short gval[] = {0x0a0a, 0x1414, 0x1e1e,
-				 0x2828, 0x3232, 0x3c3c,
-				 0x4646, 0x5050, 0x5a5a,
-				 0x6464, 0x6e6e, 0x7878,
-				 0x8282, 0x8c8c, 0x9696,
-				 0xa0a0, 0xaaaa, 0xb4b4,
-				 0xbebe, 0xc8c8, 0xd2d2,
-				 0xdcdc, 0xe6e6, 0xf0f0};
-
-	red=cmap->red;
-	green=cmap->green;
-	blue=cmap->blue;
-	start=cmap->start;
-
-	if (start < 0)
-		return -EINVAL;
-	if (cmap->len < 255)
-		return -EINVAL;
-	/* 16 ANSI colors */
-	for (i=0 ; i < 16 ; i++) {
-		*red++   = red16[i];
-		*green++ = green16[i];
-		*blue++  = blue16[i];
+	static int lastreg = -1;
+	unsigned long flags;
+	int clut_status;
+	
+	if (video_bpp > 8) return 1; /* failsafe */
+
+	red   >>= 8;
+	green >>= 8;
+	blue  >>= 8;
+
+	save_flags(flags);
+	cli();
+	
+	/*
+	 * Set the register address
+	 */
+	writeb(regno, &civic_cmap_regs->addr); nop();
+
+	/*
+	 * Wait for VBL interrupt here;
+	 * They're usually not enabled from Penguin, so we won't check
+	 */
+#if 0
+	{
+#define CIVIC_VBL_OFFSET	0x120
+		volatile unsigned long *vbl = readl(civic_cmap_regs->vbl_addr + CIVIC_VBL_OFFSET);
+		/* do interrupt setup stuff here? */
+		*vbl = 0L; nop();	/* clear */
+		*vbl = 1L; nop();	/* set */
+		while (*vbl != 0L)	/* wait for next vbl */
+		{
+			usleep(10);	/* needed? */
+		}
+		/* do interrupt shutdown stuff here? */
 	}
-	/* 216 colors (6x6x6) map) */
-	for (i=16 ; i < 232 ; i++) {
-		*red++   = cval[(i-16)/36];
-		*green++ = cval[((i-16)/6)%6];
-		*blue++  = cval[(i-16)%6];
+#endif
+
+	/*
+	 * Grab a status word and do some checking;
+	 * Then finally write the clut!
+	 */
+	clut_status =  readb(&civic_cmap_regs->status2);
+
+	if ((clut_status & 0x0008) == 0)
+	{
+#if 0
+		if ((clut_status & 0x000D) != 0)
+		{
+			writeb(0x00, &civic_cmap_regs->lut); nop();
+			writeb(0x00, &civic_cmap_regs->lut); nop();
+		}
+#endif
+
+		writeb(  red, &civic_cmap_regs->lut); nop();
+		writeb(green, &civic_cmap_regs->lut); nop();
+		writeb( blue, &civic_cmap_regs->lut); nop();
+		writeb( 0x00, &civic_cmap_regs->lut); nop();
 	}
-	/* 24 grays */
-	for (i=232 ; i < 256 ; i++) {
-		*red = *green = *blue = gval[i-232];
-		red++;
-		green++;
-		blue++;
+	else
+	{
+		unsigned char junk;
+
+		junk = readb(&civic_cmap_regs->lut); nop();
+		junk = readb(&civic_cmap_regs->lut); nop();
+		junk = readb(&civic_cmap_regs->lut); nop();
+		junk = readb(&civic_cmap_regs->lut); nop();
+
+		if ((clut_status & 0x000D) != 0)
+		{
+			writeb(0x00, &civic_cmap_regs->lut); nop();
+			writeb(0x00, &civic_cmap_regs->lut); nop();
+		}
+
+		writeb(  red, &civic_cmap_regs->lut); nop();
+		writeb(green, &civic_cmap_regs->lut); nop();
+		writeb( blue, &civic_cmap_regs->lut); nop();
+		writeb( junk, &civic_cmap_regs->lut); nop();
 	}
+
+	restore_flags(flags);
+
+	lastreg = regno;
 	return 0;
 }
 
-static struct fb_cmap * mac_get_default_cmap(int bpp)
+/*
+ * The CSC is the framebuffer on the PowerBook 190 series
+ * (and the 5300 too, but that's a PowerMac). This function
+ * brought to you in part by the ECSC driver for MkLinux.
+ */
+
+static int csc_setpalette (unsigned int regno, unsigned int red,
+			     unsigned int green, unsigned int blue)
 {
-	if (bpp == 1)
-		return &default_2_colors;
-	if (bpp == 2)
-		return &default_4_colors;
-	if (bpp == 4)
-		return &default_16_colors;
-	return &default_256_colors;
+	mdelay(1);
+	csc_cmap_regs->clut_waddr = regno;
+	csc_cmap_regs->clut_data = red;
+	csc_cmap_regs->clut_data = green;
+	csc_cmap_regs->clut_data = blue;
+	return 0;
 }
 
-static void memcpy_fs(int fsfromto, void *to, void *from, int len)
+#endif /* FBCON_HAS_CFB8 || FBCON_HAS_CFB4 || FBCON_HAS_CFB2 */
+
+static int macfb_getcolreg(unsigned regno, unsigned *red, unsigned *green,
+			   unsigned *blue, unsigned *transp,
+			   struct fb_info *fb_info)
 {
-    switch (fsfromto) {
-    	case 0:
-    	    memcpy(to, from, len);
-    	    return;
-    	case 1:
-    	    copy_from_user(to, from, len);
-    	    return;
-    	case 2:
-    	    copy_to_user(to, from, len);
-    	    return;
-    }
+	/*
+	 *  Read a single color register and split it into colors/transparent.
+	 *  Return != 0 for invalid regno.
+	 */
+
+	if (regno >= video_cmap_len)
+		return 1;
+
+	*red   = palette[regno].red;
+	*green = palette[regno].green;
+	*blue  = palette[regno].blue;
+	*transp = 0;
+	return 0;
 }
 
-static void copy_cmap(struct fb_cmap *from, struct fb_cmap *to, int fsfromto)
+static int macfb_setcolreg(unsigned regno, unsigned red, unsigned green,
+			   unsigned blue, unsigned transp,
+			   struct fb_info *fb_info)
 {
-	int size;
-	int tooff=0, fromoff=0;
+	/*
+	 *  Set a single color register. The values supplied are
+	 *  already rounded down to the hardware's capabilities
+	 *  (according to the entries in the `var' structure). Return
+	 *  != 0 for invalid regno.
+	 */
+	
+	if (regno >= video_cmap_len)
+		return 1;
 
-	if (to->start > from->start)
-		fromoff=to->start-from->start;
-	else
-		tooff=from->start-to->start;			
-	size=to->len-tooff;
-	if (size > from->len-fromoff)
-		size=from->len-fromoff;
-	if (size < 0)
+	palette[regno].red   = red;
+	palette[regno].green = green;
+	palette[regno].blue  = blue;
+
+	switch (video_bpp) {
+#ifdef FBCON_HAS_MFB
+	case 1:
+		/* We shouldn't get here */
+		break;
+#endif
+#ifdef FBCON_HAS_CFB2
+	case 2:
+		if (macfb_setpalette)
+			macfb_setpalette(regno, red, green, blue);
+		else
+			return 1;
+		break;
+#endif
+#ifdef FBCON_HAS_CFB4
+	case 4:
+		if (macfb_setpalette)
+			macfb_setpalette(regno, red, green, blue);
+		else
+			return 1;
+		break;
+#endif
+#ifdef FBCON_HAS_CFB8
+	case 8:
+		if (macfb_setpalette)
+			macfb_setpalette(regno, red, green, blue);
+		else
+			return 1;
+		break;
+#endif
+#ifdef FBCON_HAS_CFB16
+	case 15:
+	case 16:
+		/* 1:5:5:5 */
+		fbcon_cmap.cfb16[regno] =
+			((red   & 0xf800) >>  1) |
+			((green & 0xf800) >>  6) |
+			((blue  & 0xf800) >> 11) |
+			((transp != 0) << 15);
+		break;
+#endif
+		/* I'm pretty sure that one or the other of these
+		   doesn't exist on 68k Macs */
+#ifdef FBCON_HAS_CFB24
+	case 24:
+		red   >>= 8;
+		green >>= 8;
+		blue  >>= 8;
+		fbcon_cmap.cfb24[regno] =
+			(red   << macfb_defined.red.offset)   |
+			(green << macfb_defined.green.offset) |
+			(blue  << macfb_defined.blue.offset);
+		break;
+#endif
+#ifdef FBCON_HAS_CFB32
+	case 32:
+		red   >>= 8;
+		green >>= 8;
+		blue  >>= 8;
+		fbcon_cmap.cfb32[regno] =
+			(red   << macfb_defined.red.offset)   |
+			(green << macfb_defined.green.offset) |
+			(blue  << macfb_defined.blue.offset);
+		break;
+#endif
+    }
+    return 0;
+}
+
+static void do_install_cmap(int con, struct fb_info *info)
+{
+	if (con != currcon)
 		return;
-	size*=sizeof(unsigned short);
-	memcpy_fs(fsfromto, to->red+tooff, from->red+fromoff, size);
-	memcpy_fs(fsfromto, to->green+tooff, from->green+fromoff, size);
-	memcpy_fs(fsfromto, to->blue+tooff, from->blue+fromoff, size);
-	if (from->transp && to->transp)
-		memcpy_fs(fsfromto, to->transp+tooff, from->transp+fromoff, size);
+	if (fb_display[con].cmap.len)
+		fb_set_cmap(&fb_display[con].cmap, 1, macfb_setcolreg, info);
+	else
+		fb_set_cmap(fb_default_cmap(video_cmap_len), 1,
+			    macfb_setcolreg, info);
 }
- 
+
 static int macfb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
 			  struct fb_info *info)
 {
-#if 0
-	printk("macfb_get_cmap: not supported!\n");
-	/* interferes with X11 */
-	if (console_loglevel < 7)
-		return -EINVAL;
 	if (con == currcon) /* current console? */
-		return fb_get_cmap(cmap, kspc, 0 /*offb_getcolreg*/, info);
+		return fb_get_cmap(cmap, kspc, macfb_getcolreg, info);
 	else if (fb_display[con].cmap.len) /* non default colormap? */
 		fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
 	else
-		fb_copy_cmap(fb_default_cmap(fb_display[con].var.bits_per_pixel),
+		fb_copy_cmap(fb_default_cmap(video_cmap_len),
 		     cmap, kspc ? 0 : 2);
-#endif
-	copy_cmap(mac_get_default_cmap(fb_display[con].var.bits_per_pixel),
-	     cmap, kspc ? 0 : 2);
 	return 0;
-
 }
 
 static int macfb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
 			  struct fb_info *info)
 {
-#if 0
-	printk("macfb_set_cmap: not supported!\n");
-	if (console_loglevel < 7)
-		return -EINVAL;
+	int err;
+
 	if (!fb_display[con].cmap.len) {	/* no colormap allocated? */
-		if ((err = fb_alloc_cmap(&fb_display[con].cmap,
-				 1<<fb_display[con].var.bits_per_pixel, 0)))
-		return err;
+		err = fb_alloc_cmap(&fb_display[con].cmap,video_cmap_len,0);
+		if (err)
+			return err;
 	}
 	if (con == currcon)			/* current console? */
-		return fb_set_cmap(cmap, kspc, 1 /*offb_setcolreg*/, info);
+		return fb_set_cmap(cmap, kspc, macfb_setcolreg, info);
 	else
 		fb_copy_cmap(cmap, &fb_display[con].cmap, kspc ? 0 : 1);
-#endif
 	return 0;
 }
 
-static int macfb_pan_display(struct fb_var_screeninfo *var, int con,
-			     struct fb_info *info)
+static int macfb_ioctl(struct inode *inode, struct file *file,
+		       unsigned int cmd, unsigned long arg, int con,
+		       struct fb_info *info)
 {
-	/* no panning */
-	printk("macfb_pan: not supported!\n");
 	return -EINVAL;
 }
 
-static int macfb_ioctl(struct inode *inode, struct file *file, 
-		       unsigned int cmd, unsigned long arg, int con,
-		       struct fb_info *info)
+static int macfb_pan_display(struct fb_var_screeninfo *var, int con,
+			     struct fb_info *info)
 {
-	printk("macfb_ioctl: not supported!\n");
 	return -EINVAL;
 }
 
@@ -456,137 +871,405 @@ static struct fb_ops macfb_ops = {
 	macfb_get_cmap,
 	macfb_set_cmap,
 	macfb_pan_display,
-	macfb_ioctl
+	macfb_ioctl,
+	NULL
 };
 
-int __init macfb_setup(char *options)
+void macfb_setup(char *options, int *ints)
 {
-    char *this_opt;
-
-    fb_info.fontname[0] = '\0';
-
-    if (!options || !*options)
-		return 0;
-     
-    for(this_opt=strtok(options,","); this_opt; this_opt=strtok(NULL,",")) {
-	if (!*this_opt) continue;
-
-	if (! strcmp(this_opt, "inverse"))
-		inverse=1;
-	else if (!strncmp(this_opt, "font:", 5)) {
-	   strcpy(fb_info.fontname, this_opt+5);
-	   printk("macfb_setup: option %s\n", this_opt);
+	char *this_opt;
+	
+	fb_info.fontname[0] = '\0';
+	
+	if (!options || !*options)
+		return;
+	
+	for(this_opt=strtok(options,","); this_opt; this_opt=strtok(NULL,",")) {
+		if (!*this_opt) continue;
+		
+		if (! strcmp(this_opt, "inverse"))
+			inverse=1;
+		else if (!strncmp(this_opt, "font:", 5))
+			strcpy(fb_info.fontname, this_opt+5);
+		/* This means "turn on experimental CLUT code" */
+		else if (!strcmp(this_opt, "vidtest"))
+			vidtest=1;
 	}
-    }
-    return 0;
 }
 
 static int macfb_switch(int con, struct fb_info *info)
 {
-	do_fb_set_var(&fb_display[con].var,1);
-	currcon=con;
-	return 0;
+	/* Do we have to save the colormap? */
+	if (fb_display[currcon].cmap.len)
+		fb_get_cmap(&fb_display[currcon].cmap, 1, macfb_getcolreg,
+			    info);
+	
+	currcon = con;
+	/* Install new colormap */
+	do_install_cmap(con, info);
+	macfb_update_var(con, info);
+	return 1;
 }
 
-/* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */
-
 static void macfb_blank(int blank, struct fb_info *info)
 {
 	/* Not supported */
 }
 
-/*
- *	Nubus call back. This will give us our board identity and also
- *	other useful info we need later
- */
- 
-static int nubus_video_card(struct nubus_device_specifier *ns, int slot, struct nubus_type *nt)
+void __init macfb_init(void)
 {
-	if(nt->category==NUBUS_CAT_DISPLAY)
-		return 0;
-	/* Claim all video cards. We don't yet do driver specifics though. */
-	return -ENODEV;
-}
-
-static struct nubus_device_specifier nb_video={
-	nubus_video_card,
-	NULL
-};
-
-int __init macfb_init(void)
-{
-	/* nubus_remap the video .. */
+	struct nubus_dev* ndev = NULL;
+	int video_is_nubus = 0;
 
 	if (!MACH_IS_MAC) 
-		return -ENXIO;
-
-	mac_xres=mac_bi_data.dimensions&0xFFFF;
-	mac_yres=(mac_bi_data.dimensions&0xFFFF0000)>>16;
-	mac_depth=mac_bi_data.videodepth;
-	mac_xbytes=mac_bi_data.videorow;
-	mac_vxres = (mac_xbytes/mac_depth)*8;
-	mac_videosize=mac_xbytes*mac_yres;
-	mac_videobase=mac_bi_data.videoaddr;
-
-	printk("macfb_init: xres %d yres %d bpp %d addr %lx size %ld \n",
-		mac_xres, mac_yres, mac_depth, mac_videobase, mac_videosize);
+		return;
 
+	/* There can only be one internal video controller anyway so
+	   we're not too worried about this */
+	video_width      = mac_bi_data.dimensions & 0xFFFF;
+	video_height     = mac_bi_data.dimensions >> 16;
+	video_bpp        = mac_bi_data.videodepth;
+	video_linelength = mac_bi_data.videorow;
+	video_size       = video_linelength * video_height;
+	/* Note: physical address (since 2.1.127) */
+	video_base       = (void*) mac_bi_data.videoaddr;
+	/* This is actually redundant with the initial mappings.
+	   However, there are some non-obvious aspects to the way
+	   those mappings are set up, so this is in fact the safest
+	   way to ensure that this driver will work on every possible
+	   Mac */
+	video_vbase	 = ioremap(mac_bi_data.videoaddr, video_size);
+	
+	printk("macfb: framebuffer at 0x%p, mapped to 0x%p, size %dk\n",
+	       video_base, video_vbase, video_size/1024);
+	printk("macfb: mode is %dx%dx%d, linelength=%d\n",
+	       video_width, video_height, video_bpp, video_linelength);
+	
 	/*
 	 *	Fill in the available video resolution
 	 */
 	 
-	 macfb_defined.xres=mac_xres;
-	 macfb_defined.yres=mac_yres;
-	 macfb_defined.xres_virtual=mac_vxres;
-	 macfb_defined.yres_virtual=mac_yres;
-	 macfb_defined.bits_per_pixel=mac_depth;
-	 
-	 
-	/*
-	 *	Let there be consoles..
-	 */
-	strcpy(fb_info.modename, "Macintosh Builtin ");
-	fb_info.changevar = NULL;
-	fb_info.node = -1;
-	fb_info.fbops = &macfb_ops;
-	fb_info.disp=&disp;
-	fb_info.switch_con=&macfb_switch;
-	fb_info.updatevar=&fb_update_var;
-	fb_info.blank=&macfb_blank;
-	fb_info.flags = FBINFO_FLAG_DEFAULT;
-	do_fb_set_var(&macfb_defined,1);
-
-	macfb_get_var(&disp.var, -1, &fb_info);
-	macfb_set_disp(-1);
-
-	/*
-	 *	Fill in the 8 bit color table if required
-	 */
-	if (mac_depth == 8)
-		mac_set_cmap256(&default_256_colors);
-	 	
-	/*
-	 *	Register the nubus hook
+	macfb_defined.xres           = video_width;
+	macfb_defined.yres           = video_height;
+	macfb_defined.xres_virtual   = video_width;
+	macfb_defined.yres_virtual   = video_height;
+	macfb_defined.bits_per_pixel = video_bpp;
+	macfb_defined.height = PIXEL_TO_MM(macfb_defined.yres);
+	macfb_defined.width  = PIXEL_TO_MM(macfb_defined.xres);	 
+
+	printk("macfb: scrolling: redraw\n");
+	macfb_defined.yres_virtual = video_height;
+
+	/* some dummy values for timing to make fbset happy */
+	macfb_defined.pixclock     = 10000000 / video_width * 1000 / video_height;
+	macfb_defined.left_margin  = (video_width / 8) & 0xf8;
+	macfb_defined.right_margin = 32;
+	macfb_defined.upper_margin = 16;
+	macfb_defined.lower_margin = 4;
+	macfb_defined.hsync_len    = (video_width / 8) & 0xf8;
+	macfb_defined.vsync_len    = 4;
+
+	switch (video_bpp) {
+	case 1:
+		/* XXX: I think this will catch any program that tries
+		   to do FBIO_PUTCMAP when the visual is monochrome */
+		video_cmap_len = 0;
+		video_visual = FB_VISUAL_MONO01;
+		break;
+	case 2:
+	case 4:
+	case 8:
+		macfb_defined.red.length = video_bpp;
+		macfb_defined.green.length = video_bpp;
+		macfb_defined.blue.length = video_bpp;
+		video_cmap_len = 1 << video_bpp;
+		video_visual = FB_VISUAL_PSEUDOCOLOR;
+		break;
+	case 16:
+		macfb_defined.transp.offset = 15;
+		macfb_defined.transp.length = 1;
+		macfb_defined.red.offset = 10;
+		macfb_defined.red.length = 5;
+		macfb_defined.green.offset = 5;
+		macfb_defined.green.length = 5;
+		macfb_defined.blue.offset = 0;
+		macfb_defined.blue.length = 5;
+		printk("macfb: directcolor: "
+		       "size=1:5:5:5, shift=15:10:5:0\n");
+		video_cmap_len = 16;
+		/* Should actually be FB_VISUAL_DIRECTCOLOR, but this
+		   works too */
+		video_visual = FB_VISUAL_TRUECOLOR;
+		break;
+	case 24:
+	case 32:
+		/* XXX: have to test these... can any 68k Macs
+		   actually do this on internal video? */
+		macfb_defined.red.offset = 16;
+		macfb_defined.red.length = 8;
+		macfb_defined.green.offset = 8;
+		macfb_defined.green.length = 8;
+		macfb_defined.blue.offset = 0;
+		macfb_defined.blue.length = 8;
+		printk("macfb: truecolor: "
+		       "size=0:8:8:8, shift=0:16:8:0\n");
+		video_cmap_len = 16;
+		video_visual = FB_VISUAL_TRUECOLOR;
+	default:
+		video_cmap_len = 0;
+		video_visual = FB_VISUAL_MONO01;
+		printk("macfb: unknown or unsupported bit depth: %d\n", video_bpp);
+		break;
+	}
+	
+	/* Hardware dependent stuff */
+	/*  We take a wild guess that if the video physical address is
+	 *  in nubus slot space, that the nubus card is driving video.
+	 *  Penguin really ought to tell us whether we are using internal
+	 *  video or not.
 	 */
-	 
-	register_nubus_device(&nb_video);
+	/* Hopefully we only find one of them.  Otherwise our NuBus
+           code is really broken :-) */
 
-	if (register_framebuffer(&fb_info) < 0)
+	while ((ndev = nubus_find_type(NUBUS_CAT_DISPLAY, NUBUS_TYPE_VIDEO, ndev))
+		!= NULL)
 	{
-		return -EINVAL;
+		if (!(mac_bi_data.videoaddr >= ndev->board->slot_addr
+		      && (mac_bi_data.videoaddr <
+			  (unsigned long)nubus_slot_addr(ndev->board->slot+1))))
+			continue;
+		video_is_nubus = 1;
+		/* We should probably just use the slot address... */
+		video_slot = ndev->board->slot;
+
+		switch(ndev->dr_hw) {
+		case NUBUS_DRHW_APPLE_MDC:
+			strcpy( fb_info.modename, "Macintosh Display Card" );
+			macfb_setpalette = mdc_setpalette;
+			macfb_defined.activate = FB_ACTIVATE_NOW;
+			break;
+		case NUBUS_DRHW_APPLE_TFB:
+			strcpy( fb_info.modename, "Toby" );
+			macfb_setpalette = toby_setpalette;
+			macfb_defined.activate = FB_ACTIVATE_NOW;
+			break;
+		case NUBUS_DRHW_APPLE_JET:
+			strcpy(fb_info.modename, "Jet");
+			macfb_setpalette = jet_setpalette;
+			macfb_defined.activate = FB_ACTIVATE_NOW;
+			break;			
+		default:
+			strcpy( fb_info.modename, "Generic NuBus" );
+			break;
+		}
 	}
 
-	printk("fb%d: %s frame buffer device using %ldK of video memory\n",
-	       GET_FB_IDX(fb_info.node), fb_info.modename, mac_videosize>>10);
-	return 0;
-}
+	/* If it's not a NuBus card, it must be internal video */
+	/* FIXME: this function is getting way too big.  (this driver
+           is too...) */
+	if (!video_is_nubus)
+		switch( mac_bi_data.id )
+		{
+			/* These don't have onboard video.  Eventually, we may
+			   be able to write separate framebuffer drivers for
+			   them (tobyfb.c, hiresfb.c, etc, etc) */
+		case MAC_MODEL_II:
+		case MAC_MODEL_IIX:
+		case MAC_MODEL_IICX:
+		case MAC_MODEL_IIFX:
+			strcpy( fb_info.modename, "Generic NuBus" );
+			break;
+
+			/* Valkyrie Quadras */
+		case MAC_MODEL_Q630:
+			/* I'm not sure about this one */
+		case MAC_MODEL_P588:
+			strcpy( fb_info.modename, "Valkyrie built-in" );
+			macfb_setpalette = valkyrie_setpalette;
+			macfb_defined.activate = FB_ACTIVATE_NOW;
+			valkyrie_cmap_regs = ioremap(DAC_BASE, 0x1000);
+			break;
+
+			/* DAFB Quadras */
+			/* Note: these first four have the v7 DAFB, which is
+			   known to be rather unlike the ones used in the
+			   other models */
+		case MAC_MODEL_P475:
+		case MAC_MODEL_P475F:
+		case MAC_MODEL_P575:
+		case MAC_MODEL_Q605:
+	
+		case MAC_MODEL_Q800:
+		case MAC_MODEL_Q650:
+		case MAC_MODEL_Q610:
+		case MAC_MODEL_C650:
+		case MAC_MODEL_C610:
+		case MAC_MODEL_Q700:
+		case MAC_MODEL_Q900:
+		case MAC_MODEL_Q950:
+			strcpy( fb_info.modename, "DAFB built-in" );
+			macfb_setpalette = dafb_setpalette;
+			macfb_defined.activate = FB_ACTIVATE_NOW;
+			dafb_cmap_regs = ioremap(DAFB_BASE, 0x1000);
+			break;
+
+			/* LC II uses the V8 framebuffer */
+		case MAC_MODEL_LCII:
+			strcpy( fb_info.modename, "V8 built-in" );
+			macfb_setpalette = v8_brazil_setpalette;
+			macfb_defined.activate = FB_ACTIVATE_NOW;
+			v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
+			break;
+		
+			/* IIvi, IIvx use the "Brazil" framebuffer (which is
+			   very much like the V8, it seems, and probably uses
+			   the same DAC) */
+		case MAC_MODEL_IIVI:
+		case MAC_MODEL_IIVX:
+		case MAC_MODEL_P600:
+			strcpy( fb_info.modename, "Brazil built-in" );
+			macfb_setpalette = v8_brazil_setpalette;
+			macfb_defined.activate = FB_ACTIVATE_NOW;
+			v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
+			break;
+		
+			/* LC III (and friends) use the Sonora framebuffer */
+			/* Incidentally this is also used in the non-AV models
+			   of the x100 PowerMacs */
+			/* These do in fact seem to use the same DAC interface
+			   as the LC II. */
+		case MAC_MODEL_LCIII:
+		case MAC_MODEL_P520:
+		case MAC_MODEL_P550:
+		case MAC_MODEL_P460:
+			macfb_setpalette = v8_brazil_setpalette;
+			macfb_defined.activate = FB_ACTIVATE_NOW;
+			strcpy( fb_info.modename, "Sonora built-in" );
+			v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
+			break;
+
+			/* IIci and IIsi use the infamous RBV chip
+                           (the IIsi is just a rebadged and crippled
+                           IIci in a different case, BTW) */
+		case MAC_MODEL_IICI:
+		case MAC_MODEL_IISI:
+			macfb_setpalette = rbv_setpalette;
+			macfb_defined.activate = FB_ACTIVATE_NOW;
+			strcpy( fb_info.modename, "RBV built-in" );
+			rbv_cmap_regs = ioremap(DAC_BASE, 0x1000);
+			break;
+
+			/* AVs use the Civic framebuffer */
+		case MAC_MODEL_Q840:
+		case MAC_MODEL_C660:
+			macfb_setpalette = civic_setpalette;
+			macfb_defined.activate = FB_ACTIVATE_NOW;
+			strcpy( fb_info.modename, "Civic built-in" );
+			civic_cmap_regs = ioremap(CIVIC_BASE, 0x1000);
+			break;
+
+		
+			/* Write a setpalette function for your machine, then
+			   you can add something similar here.  These are
+			   grouped by classes of video chipsets.  Some of this
+			   information is from the VideoToolbox "Bugs" web
+			   page at
+			   http://rajsky.psych.nyu.edu/Tips/VideoBugs.html */
+
+			/* Assorted weirdos */
+			/* We think this may be like the LC II */
+		case MAC_MODEL_LC:
+			if (vidtest) {
+				macfb_setpalette = v8_brazil_setpalette;
+				macfb_defined.activate = FB_ACTIVATE_NOW;
+				v8_brazil_cmap_regs =
+					ioremap(DAC_BASE, 0x1000);
+			}
+			strcpy( fb_info.modename, "LC built-in" );
+			break;
+			/* We think this may be like the LC II */
+		case MAC_MODEL_CCL:
+			if (vidtest) {
+				macfb_setpalette = v8_brazil_setpalette;
+				macfb_defined.activate = FB_ACTIVATE_NOW;
+				v8_brazil_cmap_regs =
+					ioremap(DAC_BASE, 0x1000);
+			}
+			strcpy( fb_info.modename, "Color Classic built-in" );
+			break;
+
+			/* And we *do* mean "weirdos" */
+		case MAC_MODEL_TV:
+			strcpy( fb_info.modename, "Mac TV built-in" );
+			break;
+
+			/* These don't have colour, so no need to worry */
+		case MAC_MODEL_SE30:
+		case MAC_MODEL_CLII:
+			strcpy( fb_info.modename, "Monochrome built-in" );
+			break;
+
+			/* Powerbooks are particularly difficult.  Many of
+			   them have separate framebuffers for external and
+			   internal video, which is admittedly pretty cool,
+			   but will be a bit of a headache to support here.
+			   Also, many of them are grayscale, and we don't
+			   really support that. */
+
+		case MAC_MODEL_PB140:
+		case MAC_MODEL_PB145:
+		case MAC_MODEL_PB170:
+			strcpy( fb_info.modename, "DDC built-in" );
+			break;
+
+			/* Internal is GSC, External (if present) is ViSC */
+		case MAC_MODEL_PB150:	/* no external video */
+		case MAC_MODEL_PB160:
+		case MAC_MODEL_PB165:
+		case MAC_MODEL_PB180:
+		case MAC_MODEL_PB210:
+		case MAC_MODEL_PB230:
+			strcpy( fb_info.modename, "GSC built-in" );
+			break;
+
+			/* Internal is TIM, External is ViSC */
+		case MAC_MODEL_PB165C:
+		case MAC_MODEL_PB180C:
+			strcpy( fb_info.modename, "TIM built-in" );
+			break;
+
+			/* Internal is CSC, External is Keystone+Ariel. */
+		case MAC_MODEL_PB190:	/* external video is optional */
+		case MAC_MODEL_PB520:
+		case MAC_MODEL_PB250:
+		case MAC_MODEL_PB270C:
+		case MAC_MODEL_PB280:
+		case MAC_MODEL_PB280C:
+			macfb_setpalette = csc_setpalette;
+			macfb_defined.activate = FB_ACTIVATE_NOW;
+			strcpy( fb_info.modename, "CSC built-in" );
+			csc_cmap_regs = ioremap(CSC_BASE, 0x1000);
+			break;
+		
+		default:
+			strcpy( fb_info.modename, "Unknown/Unsupported built-in" );
+			break;
+		}
+	
+	fb_info.changevar  = NULL;
+	fb_info.node       = -1;
+	fb_info.fbops      = &macfb_ops;
+	fb_info.disp       = &disp;
+	fb_info.switch_con = &macfb_switch;
+	fb_info.updatevar  = &macfb_update_var;
+	fb_info.blank      = &macfb_blank;
+	fb_info.flags      = FBINFO_FLAG_DEFAULT;
+	macfb_set_disp(-1);
+	do_install_cmap(0, &fb_info);
+	
+	if (register_framebuffer(&fb_info) < 0)
+		return;
 
-#if 0
-/*
- * These two auxiliary debug functions should go away ASAP. Only usage: 
- * before the console output is up (after head.S come some other crucial
- * setup routines :-) 
- *
- * Now in debug.c ...
- */
-#endif
+	printk("fb%d: %s frame buffer device\n",
+	       GET_FB_IDX(fb_info.node), fb_info.modename);
+}