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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/video/fbdev/macfb.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/video/fbdev/macfb.c')
-rw-r--r--kernel/drivers/video/fbdev/macfb.c928
1 files changed, 928 insertions, 0 deletions
diff --git a/kernel/drivers/video/fbdev/macfb.c b/kernel/drivers/video/fbdev/macfb.c
new file mode 100644
index 000000000..cda7587cb
--- /dev/null
+++ b/kernel/drivers/video/fbdev/macfb.c
@@ -0,0 +1,928 @@
+/*
+ * 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.
+ *
+ * The VideoToolbox "Bugs" web page at
+ * http://rajsky.psych.nyu.edu/Tips/VideoBugs.html
+ *
+ * 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>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/delay.h>
+#include <linux/nubus.h>
+#include <linux/init.h>
+#include <linux/fb.h>
+
+#include <asm/setup.h>
+#include <asm/macintosh.h>
+#include <asm/io.h>
+
+/* 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
+
+/* 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,
+ struct fb_info *info);
+
+static struct {
+ unsigned char addr;
+ unsigned char lut;
+} __iomem *v8_brazil_cmap_regs;
+
+static 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 */
+} __iomem *rbv_cmap_regs;
+
+static struct {
+ unsigned long reset;
+ unsigned long pad1[3];
+ unsigned char pad2[3];
+ unsigned char lut;
+} __iomem *dafb_cmap_regs;
+
+static 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 */
+} __iomem *civic_cmap_regs;
+
+static struct {
+ char pad1[0x40];
+ unsigned char clut_waddr; /* 0x40 */
+ char pad2;
+ unsigned char clut_data; /* 0x42 */
+ char pad3[0x3];
+ unsigned char clut_raddr; /* 0x46 */
+} __iomem *csc_cmap_regs;
+
+/* The registers in these structs are in NuBus slot space */
+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;
+};
+
+#define PIXEL_TO_MM(a) (((a)*10)/28) /* width in mm at 72 dpi */
+
+static struct fb_var_screeninfo macfb_defined = {
+ .bits_per_pixel = 8,
+ .activate = FB_ACTIVATE_NOW,
+ .width = -1,
+ .height = -1,
+ .right_margin = 32,
+ .upper_margin = 16,
+ .lower_margin = 4,
+ .vsync_len = 4,
+ .vmode = FB_VMODE_NONINTERLACED,
+};
+
+static struct fb_fix_screeninfo macfb_fix = {
+ .type = FB_TYPE_PACKED_PIXELS,
+ .accel = FB_ACCEL_NONE,
+};
+
+static void *slot_addr;
+static struct fb_info fb_info;
+static u32 pseudo_palette[16];
+static int inverse;
+static int vidtest;
+
+/*
+ * 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,
+ struct fb_info *info)
+{
+ static int lastreg = -1;
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ /*
+ * fbdev will set an entire colourmap, but X won't. Hopefully
+ * this should accommodate both of them
+ */
+ if (regno != lastreg + 1) {
+ int i;
+
+ /* Stab in the dark trying to reset the CLUT pointer */
+ nubus_writel(0, &dafb_cmap_regs->reset);
+ nop();
+
+ /* Loop until we get to the register we want */
+ for (i = 0; i < regno; i++) {
+ nubus_writeb(info->cmap.red[i] >> 8,
+ &dafb_cmap_regs->lut);
+ nop();
+ nubus_writeb(info->cmap.green[i] >> 8,
+ &dafb_cmap_regs->lut);
+ nop();
+ nubus_writeb(info->cmap.blue[i] >> 8,
+ &dafb_cmap_regs->lut);
+ nop();
+ }
+ }
+
+ nubus_writeb(red, &dafb_cmap_regs->lut);
+ nop();
+ nubus_writeb(green, &dafb_cmap_regs->lut);
+ nop();
+ nubus_writeb(blue, &dafb_cmap_regs->lut);
+
+ local_irq_restore(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,
+ struct fb_info *info)
+{
+ unsigned int bpp = info->var.bits_per_pixel;
+ unsigned long flags;
+
+ if (bpp > 8)
+ return 1; /* failsafe */
+
+ local_irq_save(flags);
+
+ /* 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 - bpp)) | (0xFF >> bpp);
+ nubus_writeb(regno, &v8_brazil_cmap_regs->addr);
+ nop();
+
+ /* send one color channel at a time */
+ nubus_writeb(red, &v8_brazil_cmap_regs->lut);
+ nop();
+ nubus_writeb(green, &v8_brazil_cmap_regs->lut);
+ nop();
+ nubus_writeb(blue, &v8_brazil_cmap_regs->lut);
+
+ local_irq_restore(flags);
+ return 0;
+}
+
+/* RAM-Based Video */
+static int rbv_setpalette(unsigned int regno, unsigned int red,
+ unsigned int green, unsigned int blue,
+ struct fb_info *info)
+{
+ unsigned long flags;
+
+ if (info->var.bits_per_pixel > 8)
+ return 1; /* failsafe */
+
+ local_irq_save(flags);
+
+ /* 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 += 256 - (1 << info->var.bits_per_pixel);
+
+ /* reset clut? (VideoToolbox sez "not necessary") */
+ nubus_writeb(0xFF, &rbv_cmap_regs->cntl);
+ nop();
+
+ /* tell clut which address to use. */
+ nubus_writeb(regno, &rbv_cmap_regs->addr);
+ nop();
+
+ /* send one color channel at a time. */
+ nubus_writeb(red, &rbv_cmap_regs->lut);
+ nop();
+ nubus_writeb(green, &rbv_cmap_regs->lut);
+ nop();
+ nubus_writeb(blue, &rbv_cmap_regs->lut);
+
+ local_irq_restore(flags);
+ return 0;
+}
+
+/* Macintosh Display Card (8*24) */
+static int mdc_setpalette(unsigned int regno, unsigned int red,
+ unsigned int green, unsigned int blue,
+ struct fb_info *info)
+{
+ struct mdc_cmap_regs *cmap_regs = slot_addr;
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ /* the nop's are there to order writes. */
+ nubus_writeb(regno, &cmap_regs->addr);
+ nop();
+ nubus_writeb(red, &cmap_regs->lut);
+ nop();
+ nubus_writeb(green, &cmap_regs->lut);
+ nop();
+ nubus_writeb(blue, &cmap_regs->lut);
+
+ local_irq_restore(flags);
+ return 0;
+}
+
+/* Toby frame buffer */
+static int toby_setpalette(unsigned int regno, unsigned int red,
+ unsigned int green, unsigned int blue,
+ struct fb_info *info)
+{
+ struct toby_cmap_regs *cmap_regs = slot_addr;
+ unsigned int bpp = info->var.bits_per_pixel;
+ unsigned long flags;
+
+ red = ~red;
+ green = ~green;
+ blue = ~blue;
+ regno = (regno << (8 - bpp)) | (0xFF >> bpp);
+
+ local_irq_save(flags);
+
+ nubus_writeb(regno, &cmap_regs->addr);
+ nop();
+ nubus_writeb(red, &cmap_regs->lut);
+ nop();
+ nubus_writeb(green, &cmap_regs->lut);
+ nop();
+ nubus_writeb(blue, &cmap_regs->lut);
+
+ local_irq_restore(flags);
+ return 0;
+}
+
+/* Jet frame buffer */
+static int jet_setpalette(unsigned int regno, unsigned int red,
+ unsigned int green, unsigned int blue,
+ struct fb_info *info)
+{
+ struct jet_cmap_regs *cmap_regs = slot_addr;
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ nubus_writeb(regno, &cmap_regs->addr);
+ nop();
+ nubus_writeb(red, &cmap_regs->lut);
+ nop();
+ nubus_writeb(green, &cmap_regs->lut);
+ nop();
+ nubus_writeb(blue, &cmap_regs->lut);
+
+ local_irq_restore(flags);
+ return 0;
+}
+
+/*
+ * 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.
+ */
+static int civic_setpalette(unsigned int regno, unsigned int red,
+ unsigned int green, unsigned int blue,
+ struct fb_info *info)
+{
+ unsigned long flags;
+ int clut_status;
+
+ if (info->var.bits_per_pixel > 8)
+ return 1; /* failsafe */
+
+ local_irq_save(flags);
+
+ /* Set the register address */
+ nubus_writeb(regno, &civic_cmap_regs->addr);
+ nop();
+
+ /*
+ * Grab a status word and do some checking;
+ * Then finally write the clut!
+ */
+ clut_status = nubus_readb(&civic_cmap_regs->status2);
+
+ if ((clut_status & 0x0008) == 0)
+ {
+#if 0
+ if ((clut_status & 0x000D) != 0)
+ {
+ nubus_writeb(0x00, &civic_cmap_regs->lut);
+ nop();
+ nubus_writeb(0x00, &civic_cmap_regs->lut);
+ nop();
+ }
+#endif
+
+ nubus_writeb(red, &civic_cmap_regs->lut);
+ nop();
+ nubus_writeb(green, &civic_cmap_regs->lut);
+ nop();
+ nubus_writeb(blue, &civic_cmap_regs->lut);
+ nop();
+ nubus_writeb(0x00, &civic_cmap_regs->lut);
+ }
+ else
+ {
+ unsigned char junk;
+
+ junk = nubus_readb(&civic_cmap_regs->lut);
+ nop();
+ junk = nubus_readb(&civic_cmap_regs->lut);
+ nop();
+ junk = nubus_readb(&civic_cmap_regs->lut);
+ nop();
+ junk = nubus_readb(&civic_cmap_regs->lut);
+ nop();
+
+ if ((clut_status & 0x000D) != 0)
+ {
+ nubus_writeb(0x00, &civic_cmap_regs->lut);
+ nop();
+ nubus_writeb(0x00, &civic_cmap_regs->lut);
+ nop();
+ }
+
+ nubus_writeb(red, &civic_cmap_regs->lut);
+ nop();
+ nubus_writeb(green, &civic_cmap_regs->lut);
+ nop();
+ nubus_writeb(blue, &civic_cmap_regs->lut);
+ nop();
+ nubus_writeb(junk, &civic_cmap_regs->lut);
+ }
+
+ local_irq_restore(flags);
+ return 0;
+}
+
+/*
+ * 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,
+ struct fb_info *info)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ udelay(1); /* mklinux on PB 5300 waits for 260 ns */
+ nubus_writeb(regno, &csc_cmap_regs->clut_waddr);
+ nubus_writeb(red, &csc_cmap_regs->clut_data);
+ nubus_writeb(green, &csc_cmap_regs->clut_data);
+ nubus_writeb(blue, &csc_cmap_regs->clut_data);
+
+ local_irq_restore(flags);
+ return 0;
+}
+
+static int macfb_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp,
+ struct fb_info *fb_info)
+{
+ /*
+ * 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 non-zero for invalid regno.
+ */
+
+ if (regno >= fb_info->cmap.len)
+ return 1;
+
+ if (fb_info->var.bits_per_pixel <= 8) {
+ switch (fb_info->var.bits_per_pixel) {
+ case 1:
+ /* We shouldn't get here */
+ break;
+ case 2:
+ case 4:
+ case 8:
+ if (macfb_setpalette)
+ macfb_setpalette(regno, red >> 8, green >> 8,
+ blue >> 8, fb_info);
+ else
+ return 1;
+ break;
+ }
+ } else if (regno < 16) {
+ switch (fb_info->var.bits_per_pixel) {
+ case 16:
+ if (fb_info->var.red.offset == 10) {
+ /* 1:5:5:5 */
+ ((u32*) (fb_info->pseudo_palette))[regno] =
+ ((red & 0xf800) >> 1) |
+ ((green & 0xf800) >> 6) |
+ ((blue & 0xf800) >> 11) |
+ ((transp != 0) << 15);
+ } else {
+ /* 0:5:6:5 */
+ ((u32*) (fb_info->pseudo_palette))[regno] =
+ ((red & 0xf800) >> 0) |
+ ((green & 0xfc00) >> 5) |
+ ((blue & 0xf800) >> 11);
+ }
+ break;
+ /*
+ * 24-bit colour almost doesn't exist on 68k Macs --
+ * http://support.apple.com/kb/TA28634 (Old Article: 10992)
+ */
+ case 24:
+ case 32:
+ red >>= 8;
+ green >>= 8;
+ blue >>= 8;
+ ((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;
+
+ fb_info(&fb_info, "%s frame buffer device\n", 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");