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![Finn Thain](/assets/img/avatar_default.png)
macfb won't init in black & white modes since fb_alloc_cmap() no longer works for zero cmap length. Fix this and also clean up a few printk's and some stylistic inconsistencies. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
930 lines
23 KiB
C
930 lines
23 KiB
C
/*
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* macfb.c: Generic framebuffer for Macs whose colourmaps/modes we
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* don't know how to set.
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*
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* (c) 1999 David Huggins-Daines <dhd@debian.org>
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*
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* Primarily based on vesafb.c, by Gerd Knorr
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* (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
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*
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* Also uses information and code from:
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*
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* The original macfb.c from Linux/mac68k 2.0, by Alan Cox, Juergen
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* Mellinger, Mikael Forselius, Michael Schmitz, and others.
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*
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* valkyriefb.c, by Martin Costabel, Kevin Schoedel, Barry Nathan, Dan
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* Jacobowitz, Paul Mackerras, Fabio Riccardi, and Geert Uytterhoeven.
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*
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* The VideoToolbox "Bugs" web page at
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* http://rajsky.psych.nyu.edu/Tips/VideoBugs.html
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*
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* This code is free software. You may copy, modify, and distribute
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* it subject to the terms and conditions of the GNU General Public
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* License, version 2, or any later version, at your convenience.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/delay.h>
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#include <linux/nubus.h>
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#include <linux/init.h>
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#include <linux/fb.h>
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#include <asm/setup.h>
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#include <asm/bootinfo.h>
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#include <asm/macintosh.h>
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#include <asm/io.h>
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/* Common DAC base address for the LC, RBV, Valkyrie, and IIvx */
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#define DAC_BASE 0x50f24000
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/* Some addresses for the DAFB */
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#define DAFB_BASE 0xf9800200
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/* Address for the built-in Civic framebuffer in Quadra AVs */
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#define CIVIC_BASE 0x50f30800
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/* GSC (Gray Scale Controller) base address */
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#define GSC_BASE 0x50F20000
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/* CSC (Color Screen Controller) base address */
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#define CSC_BASE 0x50F20000
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static int (*macfb_setpalette)(unsigned int regno, unsigned int red,
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unsigned int green, unsigned int blue,
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struct fb_info *info);
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static struct {
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unsigned char addr;
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unsigned char lut;
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} __iomem *v8_brazil_cmap_regs;
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static struct {
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unsigned char addr;
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char pad1[3]; /* word aligned */
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unsigned char lut;
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char pad2[3]; /* word aligned */
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unsigned char cntl; /* a guess as to purpose */
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} __iomem *rbv_cmap_regs;
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static struct {
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unsigned long reset;
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unsigned long pad1[3];
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unsigned char pad2[3];
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unsigned char lut;
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} __iomem *dafb_cmap_regs;
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static struct {
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unsigned char addr; /* OFFSET: 0x00 */
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unsigned char pad1[15];
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unsigned char lut; /* OFFSET: 0x10 */
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unsigned char pad2[15];
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unsigned char status; /* OFFSET: 0x20 */
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unsigned char pad3[7];
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unsigned long vbl_addr; /* OFFSET: 0x28 */
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unsigned int status2; /* OFFSET: 0x2C */
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} __iomem *civic_cmap_regs;
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static struct {
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char pad1[0x40];
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unsigned char clut_waddr; /* 0x40 */
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char pad2;
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unsigned char clut_data; /* 0x42 */
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char pad3[0x3];
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unsigned char clut_raddr; /* 0x46 */
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} __iomem *csc_cmap_regs;
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/* The registers in these structs are in NuBus slot space */
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struct mdc_cmap_regs {
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char pad1[0x200200];
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unsigned char addr;
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char pad2[6];
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unsigned char lut;
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};
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struct toby_cmap_regs {
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char pad1[0x90018];
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unsigned char lut; /* TFBClutWDataReg, offset 0x90018 */
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char pad2[3];
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unsigned char addr; /* TFBClutAddrReg, offset 0x9001C */
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};
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struct jet_cmap_regs {
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char pad1[0xe0e000];
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unsigned char addr;
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unsigned char lut;
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};
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#define PIXEL_TO_MM(a) (((a)*10)/28) /* width in mm at 72 dpi */
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static struct fb_var_screeninfo macfb_defined = {
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.bits_per_pixel = 8,
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.activate = FB_ACTIVATE_NOW,
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.width = -1,
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.height = -1,
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.right_margin = 32,
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.upper_margin = 16,
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.lower_margin = 4,
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.vsync_len = 4,
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.vmode = FB_VMODE_NONINTERLACED,
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};
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static struct fb_fix_screeninfo macfb_fix = {
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.type = FB_TYPE_PACKED_PIXELS,
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.accel = FB_ACCEL_NONE,
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};
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static void *slot_addr;
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static struct fb_info fb_info;
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static u32 pseudo_palette[16];
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static int inverse;
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static int vidtest;
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/*
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* Unlike the Valkyrie, the DAFB cannot set individual colormap
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* registers. Therefore, we do what the MacOS driver does (no
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* kidding!) and simply set them one by one until we hit the one we
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* want.
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*/
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static int dafb_setpalette(unsigned int regno, unsigned int red,
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unsigned int green, unsigned int blue,
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struct fb_info *info)
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{
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static int lastreg = -1;
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unsigned long flags;
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local_irq_save(flags);
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/*
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* fbdev will set an entire colourmap, but X won't. Hopefully
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* this should accommodate both of them
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*/
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if (regno != lastreg + 1) {
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int i;
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/* Stab in the dark trying to reset the CLUT pointer */
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nubus_writel(0, &dafb_cmap_regs->reset);
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nop();
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/* Loop until we get to the register we want */
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for (i = 0; i < regno; i++) {
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nubus_writeb(info->cmap.red[i] >> 8,
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&dafb_cmap_regs->lut);
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nop();
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nubus_writeb(info->cmap.green[i] >> 8,
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&dafb_cmap_regs->lut);
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nop();
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nubus_writeb(info->cmap.blue[i] >> 8,
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&dafb_cmap_regs->lut);
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nop();
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}
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}
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nubus_writeb(red, &dafb_cmap_regs->lut);
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nop();
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nubus_writeb(green, &dafb_cmap_regs->lut);
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nop();
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nubus_writeb(blue, &dafb_cmap_regs->lut);
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local_irq_restore(flags);
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lastreg = regno;
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return 0;
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}
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/* V8 and Brazil seem to use the same DAC. Sonora does as well. */
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static int v8_brazil_setpalette(unsigned int regno, unsigned int red,
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unsigned int green, unsigned int blue,
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struct fb_info *info)
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{
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unsigned int bpp = info->var.bits_per_pixel;
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unsigned long flags;
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if (bpp > 8)
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return 1; /* failsafe */
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local_irq_save(flags);
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/* On these chips, the CLUT register numbers are spread out
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* across the register space. Thus:
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* In 8bpp, all regnos are valid.
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* In 4bpp, the regnos are 0x0f, 0x1f, 0x2f, etc, etc
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* In 2bpp, the regnos are 0x3f, 0x7f, 0xbf, 0xff
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*/
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regno = (regno << (8 - bpp)) | (0xFF >> bpp);
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nubus_writeb(regno, &v8_brazil_cmap_regs->addr);
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nop();
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/* send one color channel at a time */
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nubus_writeb(red, &v8_brazil_cmap_regs->lut);
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nop();
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nubus_writeb(green, &v8_brazil_cmap_regs->lut);
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nop();
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nubus_writeb(blue, &v8_brazil_cmap_regs->lut);
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local_irq_restore(flags);
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return 0;
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}
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/* RAM-Based Video */
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static int rbv_setpalette(unsigned int regno, unsigned int red,
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unsigned int green, unsigned int blue,
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struct fb_info *info)
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{
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unsigned long flags;
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if (info->var.bits_per_pixel > 8)
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return 1; /* failsafe */
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local_irq_save(flags);
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/* From the VideoToolbox driver. Seems to be saying that
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* regno #254 and #255 are the important ones for 1-bit color,
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* regno #252-255 are the important ones for 2-bit color, etc.
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*/
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regno += 256 - (1 << info->var.bits_per_pixel);
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/* reset clut? (VideoToolbox sez "not necessary") */
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nubus_writeb(0xFF, &rbv_cmap_regs->cntl);
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nop();
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/* tell clut which address to use. */
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nubus_writeb(regno, &rbv_cmap_regs->addr);
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nop();
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/* send one color channel at a time. */
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nubus_writeb(red, &rbv_cmap_regs->lut);
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nop();
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nubus_writeb(green, &rbv_cmap_regs->lut);
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nop();
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nubus_writeb(blue, &rbv_cmap_regs->lut);
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local_irq_restore(flags);
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return 0;
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}
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/* Macintosh Display Card (8*24) */
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static int mdc_setpalette(unsigned int regno, unsigned int red,
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unsigned int green, unsigned int blue,
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struct fb_info *info)
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{
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struct mdc_cmap_regs *cmap_regs = slot_addr;
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unsigned long flags;
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local_irq_save(flags);
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/* the nop's are there to order writes. */
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nubus_writeb(regno, &cmap_regs->addr);
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nop();
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nubus_writeb(red, &cmap_regs->lut);
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nop();
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nubus_writeb(green, &cmap_regs->lut);
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nop();
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nubus_writeb(blue, &cmap_regs->lut);
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local_irq_restore(flags);
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return 0;
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}
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/* Toby frame buffer */
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static int toby_setpalette(unsigned int regno, unsigned int red,
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unsigned int green, unsigned int blue,
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struct fb_info *info)
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{
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struct toby_cmap_regs *cmap_regs = slot_addr;
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unsigned int bpp = info->var.bits_per_pixel;
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unsigned long flags;
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red = ~red;
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green = ~green;
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blue = ~blue;
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regno = (regno << (8 - bpp)) | (0xFF >> bpp);
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local_irq_save(flags);
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nubus_writeb(regno, &cmap_regs->addr);
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nop();
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nubus_writeb(red, &cmap_regs->lut);
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nop();
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nubus_writeb(green, &cmap_regs->lut);
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nop();
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nubus_writeb(blue, &cmap_regs->lut);
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local_irq_restore(flags);
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return 0;
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}
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/* Jet frame buffer */
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static int jet_setpalette(unsigned int regno, unsigned int red,
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unsigned int green, unsigned int blue,
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struct fb_info *info)
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{
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struct jet_cmap_regs *cmap_regs = slot_addr;
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unsigned long flags;
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local_irq_save(flags);
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nubus_writeb(regno, &cmap_regs->addr);
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nop();
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nubus_writeb(red, &cmap_regs->lut);
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nop();
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nubus_writeb(green, &cmap_regs->lut);
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nop();
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nubus_writeb(blue, &cmap_regs->lut);
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local_irq_restore(flags);
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return 0;
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}
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/*
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* Civic framebuffer -- Quadra AV built-in video. A chip
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* called Sebastian holds the actual color palettes, and
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* apparently, there are two different banks of 512K RAM
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* which can act as separate framebuffers for doing video
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* input and viewing the screen at the same time! The 840AV
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* Can add another 1MB RAM to give the two framebuffers
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* 1MB RAM apiece.
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*/
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static int civic_setpalette(unsigned int regno, unsigned int red,
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unsigned int green, unsigned int blue,
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struct fb_info *info)
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{
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unsigned long flags;
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int clut_status;
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if (info->var.bits_per_pixel > 8)
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return 1; /* failsafe */
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local_irq_save(flags);
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/* Set the register address */
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nubus_writeb(regno, &civic_cmap_regs->addr);
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nop();
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/*
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* Grab a status word and do some checking;
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* Then finally write the clut!
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*/
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clut_status = nubus_readb(&civic_cmap_regs->status2);
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if ((clut_status & 0x0008) == 0)
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{
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#if 0
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if ((clut_status & 0x000D) != 0)
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{
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nubus_writeb(0x00, &civic_cmap_regs->lut);
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nop();
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nubus_writeb(0x00, &civic_cmap_regs->lut);
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nop();
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}
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#endif
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nubus_writeb(red, &civic_cmap_regs->lut);
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nop();
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nubus_writeb(green, &civic_cmap_regs->lut);
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nop();
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nubus_writeb(blue, &civic_cmap_regs->lut);
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nop();
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nubus_writeb(0x00, &civic_cmap_regs->lut);
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}
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else
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{
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unsigned char junk;
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junk = nubus_readb(&civic_cmap_regs->lut);
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nop();
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junk = nubus_readb(&civic_cmap_regs->lut);
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nop();
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junk = nubus_readb(&civic_cmap_regs->lut);
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nop();
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junk = nubus_readb(&civic_cmap_regs->lut);
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nop();
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if ((clut_status & 0x000D) != 0)
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{
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nubus_writeb(0x00, &civic_cmap_regs->lut);
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nop();
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nubus_writeb(0x00, &civic_cmap_regs->lut);
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nop();
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}
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nubus_writeb(red, &civic_cmap_regs->lut);
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nop();
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nubus_writeb(green, &civic_cmap_regs->lut);
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nop();
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nubus_writeb(blue, &civic_cmap_regs->lut);
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nop();
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nubus_writeb(junk, &civic_cmap_regs->lut);
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}
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local_irq_restore(flags);
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return 0;
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}
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/*
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* The CSC is the framebuffer on the PowerBook 190 series
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* (and the 5300 too, but that's a PowerMac). This function
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* brought to you in part by the ECSC driver for MkLinux.
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*/
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static int csc_setpalette(unsigned int regno, unsigned int red,
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unsigned int green, unsigned int blue,
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struct fb_info *info)
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{
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unsigned long flags;
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local_irq_save(flags);
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udelay(1); /* mklinux on PB 5300 waits for 260 ns */
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nubus_writeb(regno, &csc_cmap_regs->clut_waddr);
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nubus_writeb(red, &csc_cmap_regs->clut_data);
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nubus_writeb(green, &csc_cmap_regs->clut_data);
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nubus_writeb(blue, &csc_cmap_regs->clut_data);
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local_irq_restore(flags);
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return 0;
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}
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static int macfb_setcolreg(unsigned regno, unsigned red, unsigned green,
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unsigned blue, unsigned transp,
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struct fb_info *fb_info)
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{
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/*
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* Set a single color register. The values supplied are
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* already rounded down to the hardware's capabilities
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* (according to the entries in the `var' structure).
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* Return non-zero for invalid regno.
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*/
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if (regno >= fb_info->cmap.len)
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return 1;
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if (fb_info->var.bits_per_pixel <= 8) {
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switch (fb_info->var.bits_per_pixel) {
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case 1:
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/* We shouldn't get here */
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break;
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case 2:
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case 4:
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case 8:
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if (macfb_setpalette)
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macfb_setpalette(regno, red >> 8, green >> 8,
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blue >> 8, fb_info);
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else
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return 1;
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break;
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}
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} else if (regno < 16) {
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switch (fb_info->var.bits_per_pixel) {
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case 16:
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if (fb_info->var.red.offset == 10) {
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/* 1:5:5:5 */
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((u32*) (fb_info->pseudo_palette))[regno] =
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((red & 0xf800) >> 1) |
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((green & 0xf800) >> 6) |
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((blue & 0xf800) >> 11) |
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((transp != 0) << 15);
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} else {
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/* 0:5:6:5 */
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((u32*) (fb_info->pseudo_palette))[regno] =
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((red & 0xf800) >> 0) |
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((green & 0xfc00) >> 5) |
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((blue & 0xf800) >> 11);
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}
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break;
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/*
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* 24-bit colour almost doesn't exist on 68k Macs --
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* http://support.apple.com/kb/TA28634 (Old Article: 10992)
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*/
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case 24:
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case 32:
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red >>= 8;
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green >>= 8;
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blue >>= 8;
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((u32 *)(fb_info->pseudo_palette))[regno] =
|
|
(red << fb_info->var.red.offset) |
|
|
(green << fb_info->var.green.offset) |
|
|
(blue << fb_info->var.blue.offset);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct fb_ops macfb_ops = {
|
|
.owner = THIS_MODULE,
|
|
.fb_setcolreg = macfb_setcolreg,
|
|
.fb_fillrect = cfb_fillrect,
|
|
.fb_copyarea = cfb_copyarea,
|
|
.fb_imageblit = cfb_imageblit,
|
|
};
|
|
|
|
static void __init macfb_setup(char *options)
|
|
{
|
|
char *this_opt;
|
|
|
|
if (!options || !*options)
|
|
return;
|
|
|
|
while ((this_opt = strsep(&options, ",")) != NULL) {
|
|
if (!*this_opt)
|
|
continue;
|
|
|
|
if (!strcmp(this_opt, "inverse"))
|
|
inverse = 1;
|
|
else
|
|
if (!strcmp(this_opt, "vidtest"))
|
|
vidtest = 1; /* enable experimental CLUT code */
|
|
}
|
|
}
|
|
|
|
static void __init iounmap_macfb(void)
|
|
{
|
|
if (dafb_cmap_regs)
|
|
iounmap(dafb_cmap_regs);
|
|
if (v8_brazil_cmap_regs)
|
|
iounmap(v8_brazil_cmap_regs);
|
|
if (rbv_cmap_regs)
|
|
iounmap(rbv_cmap_regs);
|
|
if (civic_cmap_regs)
|
|
iounmap(civic_cmap_regs);
|
|
if (csc_cmap_regs)
|
|
iounmap(csc_cmap_regs);
|
|
}
|
|
|
|
static int __init macfb_init(void)
|
|
{
|
|
int video_cmap_len, video_is_nubus = 0;
|
|
struct nubus_dev* ndev = NULL;
|
|
char *option = NULL;
|
|
int err;
|
|
|
|
if (fb_get_options("macfb", &option))
|
|
return -ENODEV;
|
|
macfb_setup(option);
|
|
|
|
if (!MACH_IS_MAC)
|
|
return -ENODEV;
|
|
|
|
if (mac_bi_data.id == MAC_MODEL_Q630 ||
|
|
mac_bi_data.id == MAC_MODEL_P588)
|
|
return -ENODEV; /* See valkyriefb.c */
|
|
|
|
macfb_defined.xres = mac_bi_data.dimensions & 0xFFFF;
|
|
macfb_defined.yres = mac_bi_data.dimensions >> 16;
|
|
macfb_defined.bits_per_pixel = mac_bi_data.videodepth;
|
|
|
|
macfb_fix.line_length = mac_bi_data.videorow;
|
|
macfb_fix.smem_len = macfb_fix.line_length * macfb_defined.yres;
|
|
/* Note: physical address (since 2.1.127) */
|
|
macfb_fix.smem_start = 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
|
|
*/
|
|
fb_info.screen_base = ioremap(mac_bi_data.videoaddr,
|
|
macfb_fix.smem_len);
|
|
if (!fb_info.screen_base)
|
|
return -ENODEV;
|
|
|
|
pr_info("macfb: framebuffer at 0x%08lx, mapped to 0x%p, size %dk\n",
|
|
macfb_fix.smem_start, fb_info.screen_base,
|
|
macfb_fix.smem_len / 1024);
|
|
pr_info("macfb: mode is %dx%dx%d, linelength=%d\n",
|
|
macfb_defined.xres, macfb_defined.yres,
|
|
macfb_defined.bits_per_pixel, macfb_fix.line_length);
|
|
|
|
/* Fill in the available video resolution */
|
|
macfb_defined.xres_virtual = macfb_defined.xres;
|
|
macfb_defined.yres_virtual = macfb_defined.yres;
|
|
macfb_defined.height = PIXEL_TO_MM(macfb_defined.yres);
|
|
macfb_defined.width = PIXEL_TO_MM(macfb_defined.xres);
|
|
|
|
/* Some dummy values for timing to make fbset happy */
|
|
macfb_defined.pixclock = 10000000 / macfb_defined.xres *
|
|
1000 / macfb_defined.yres;
|
|
macfb_defined.left_margin = (macfb_defined.xres / 8) & 0xf8;
|
|
macfb_defined.hsync_len = (macfb_defined.xres / 8) & 0xf8;
|
|
|
|
switch (macfb_defined.bits_per_pixel) {
|
|
case 1:
|
|
macfb_defined.red.length = macfb_defined.bits_per_pixel;
|
|
macfb_defined.green.length = macfb_defined.bits_per_pixel;
|
|
macfb_defined.blue.length = macfb_defined.bits_per_pixel;
|
|
video_cmap_len = 2;
|
|
macfb_fix.visual = FB_VISUAL_MONO01;
|
|
break;
|
|
case 2:
|
|
case 4:
|
|
case 8:
|
|
macfb_defined.red.length = macfb_defined.bits_per_pixel;
|
|
macfb_defined.green.length = macfb_defined.bits_per_pixel;
|
|
macfb_defined.blue.length = macfb_defined.bits_per_pixel;
|
|
video_cmap_len = 1 << macfb_defined.bits_per_pixel;
|
|
macfb_fix.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;
|
|
video_cmap_len = 16;
|
|
/*
|
|
* Should actually be FB_VISUAL_DIRECTCOLOR, but this
|
|
* works too
|
|
*/
|
|
macfb_fix.visual = FB_VISUAL_TRUECOLOR;
|
|
break;
|
|
case 24:
|
|
case 32:
|
|
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;
|
|
video_cmap_len = 16;
|
|
macfb_fix.visual = FB_VISUAL_TRUECOLOR;
|
|
break;
|
|
default:
|
|
pr_err("macfb: unknown or unsupported bit depth: %d\n",
|
|
macfb_defined.bits_per_pixel);
|
|
err = -EINVAL;
|
|
goto fail_unmap;
|
|
}
|
|
|
|
/*
|
|
* 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.
|
|
* Hopefully we only find one of them. Otherwise our NuBus
|
|
* code is really broken :-)
|
|
*/
|
|
|
|
while ((ndev = nubus_find_type(NUBUS_CAT_DISPLAY,
|
|
NUBUS_TYPE_VIDEO, ndev)))
|
|
{
|
|
unsigned long base = ndev->board->slot_addr;
|
|
|
|
if (mac_bi_data.videoaddr < base ||
|
|
mac_bi_data.videoaddr - base > 0xFFFFFF)
|
|
continue;
|
|
|
|
video_is_nubus = 1;
|
|
slot_addr = (unsigned char *)base;
|
|
|
|
switch(ndev->dr_hw) {
|
|
case NUBUS_DRHW_APPLE_MDC:
|
|
strcpy(macfb_fix.id, "Mac Disp. Card");
|
|
macfb_setpalette = mdc_setpalette;
|
|
macfb_defined.activate = FB_ACTIVATE_NOW;
|
|
break;
|
|
case NUBUS_DRHW_APPLE_TFB:
|
|
strcpy(macfb_fix.id, "Toby");
|
|
macfb_setpalette = toby_setpalette;
|
|
macfb_defined.activate = FB_ACTIVATE_NOW;
|
|
break;
|
|
case NUBUS_DRHW_APPLE_JET:
|
|
strcpy(macfb_fix.id, "Jet");
|
|
macfb_setpalette = jet_setpalette;
|
|
macfb_defined.activate = FB_ACTIVATE_NOW;
|
|
break;
|
|
default:
|
|
strcpy(macfb_fix.id, "Generic NuBus");
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* If it's not a NuBus card, it must be internal video */
|
|
if (!video_is_nubus)
|
|
switch (mac_bi_data.id) {
|
|
/*
|
|
* 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(macfb_fix.id, "DAFB");
|
|
macfb_setpalette = dafb_setpalette;
|
|
dafb_cmap_regs = ioremap(DAFB_BASE, 0x1000);
|
|
macfb_defined.activate = FB_ACTIVATE_NOW;
|
|
break;
|
|
|
|
/*
|
|
* LC II uses the V8 framebuffer
|
|
*/
|
|
case MAC_MODEL_LCII:
|
|
strcpy(macfb_fix.id, "V8");
|
|
macfb_setpalette = v8_brazil_setpalette;
|
|
v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
|
|
macfb_defined.activate = FB_ACTIVATE_NOW;
|
|
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(macfb_fix.id, "Brazil");
|
|
macfb_setpalette = v8_brazil_setpalette;
|
|
v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
|
|
macfb_defined.activate = FB_ACTIVATE_NOW;
|
|
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:
|
|
strcpy(macfb_fix.id, "Sonora");
|
|
macfb_setpalette = v8_brazil_setpalette;
|
|
v8_brazil_cmap_regs = ioremap(DAC_BASE, 0x1000);
|
|
macfb_defined.activate = FB_ACTIVATE_NOW;
|
|
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:
|
|
strcpy(macfb_fix.id, "RBV");
|
|
macfb_setpalette = rbv_setpalette;
|
|
rbv_cmap_regs = ioremap(DAC_BASE, 0x1000);
|
|
macfb_defined.activate = FB_ACTIVATE_NOW;
|
|
break;
|
|
|
|
/*
|
|
* AVs use the Civic framebuffer
|
|
*/
|
|
case MAC_MODEL_Q840:
|
|
case MAC_MODEL_C660:
|
|
strcpy(macfb_fix.id, "Civic");
|
|
macfb_setpalette = civic_setpalette;
|
|
civic_cmap_regs = ioremap(CIVIC_BASE, 0x1000);
|
|
macfb_defined.activate = FB_ACTIVATE_NOW;
|
|
break;
|
|
|
|
|
|
/*
|
|
* Assorted weirdos
|
|
* We think this may be like the LC II
|
|
*/
|
|
case MAC_MODEL_LC:
|
|
strcpy(macfb_fix.id, "LC");
|
|
if (vidtest) {
|
|
macfb_setpalette = v8_brazil_setpalette;
|
|
v8_brazil_cmap_regs =
|
|
ioremap(DAC_BASE, 0x1000);
|
|
macfb_defined.activate = FB_ACTIVATE_NOW;
|
|
}
|
|
break;
|
|
|
|
/*
|
|
* We think this may be like the LC II
|
|
*/
|
|
case MAC_MODEL_CCL:
|
|
strcpy(macfb_fix.id, "Color Classic");
|
|
if (vidtest) {
|
|
macfb_setpalette = v8_brazil_setpalette;
|
|
v8_brazil_cmap_regs =
|
|
ioremap(DAC_BASE, 0x1000);
|
|
macfb_defined.activate = FB_ACTIVATE_NOW;
|
|
}
|
|
break;
|
|
|
|
/*
|
|
* And we *do* mean "weirdos"
|
|
*/
|
|
case MAC_MODEL_TV:
|
|
strcpy(macfb_fix.id, "Mac TV");
|
|
break;
|
|
|
|
/*
|
|
* These don't have colour, so no need to worry
|
|
*/
|
|
case MAC_MODEL_SE30:
|
|
case MAC_MODEL_CLII:
|
|
strcpy(macfb_fix.id, "Monochrome");
|
|
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.
|
|
*/
|
|
|
|
/*
|
|
* Slot 0 ROM says TIM. No external video. B&W.
|
|
*/
|
|
case MAC_MODEL_PB140:
|
|
case MAC_MODEL_PB145:
|
|
case MAC_MODEL_PB170:
|
|
strcpy(macfb_fix.id, "DDC");
|
|
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(macfb_fix.id, "GSC");
|
|
break;
|
|
|
|
/*
|
|
* Internal is TIM, External is ViSC
|
|
*/
|
|
case MAC_MODEL_PB165C:
|
|
case MAC_MODEL_PB180C:
|
|
strcpy(macfb_fix.id, "TIM");
|
|
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:
|
|
strcpy(macfb_fix.id, "CSC");
|
|
macfb_setpalette = csc_setpalette;
|
|
csc_cmap_regs = ioremap(CSC_BASE, 0x1000);
|
|
macfb_defined.activate = FB_ACTIVATE_NOW;
|
|
break;
|
|
|
|
default:
|
|
strcpy(macfb_fix.id, "Unknown");
|
|
break;
|
|
}
|
|
|
|
fb_info.fbops = &macfb_ops;
|
|
fb_info.var = macfb_defined;
|
|
fb_info.fix = macfb_fix;
|
|
fb_info.pseudo_palette = pseudo_palette;
|
|
fb_info.flags = FBINFO_DEFAULT;
|
|
|
|
err = fb_alloc_cmap(&fb_info.cmap, video_cmap_len, 0);
|
|
if (err)
|
|
goto fail_unmap;
|
|
|
|
err = register_framebuffer(&fb_info);
|
|
if (err)
|
|
goto fail_dealloc;
|
|
|
|
pr_info("fb%d: %s frame buffer device\n",
|
|
fb_info.node, fb_info.fix.id);
|
|
|
|
return 0;
|
|
|
|
fail_dealloc:
|
|
fb_dealloc_cmap(&fb_info.cmap);
|
|
fail_unmap:
|
|
iounmap(fb_info.screen_base);
|
|
iounmap_macfb();
|
|
return err;
|
|
}
|
|
|
|
module_init(macfb_init);
|
|
MODULE_LICENSE("GPL");
|