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-rw-r--r--drivers/video/macfb.c1431
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);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-20 02:43:55 +0000