Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/video/retz3fb.c b/drivers/video/retz3fb.c
new file mode 100644
index 0000000..5e2c64f
--- /dev/null
+++ b/drivers/video/retz3fb.c
@@ -0,0 +1,1587 @@
+/*
+ * Linux/drivers/video/retz3fb.c -- RetinaZ3 frame buffer device
+ *
+ * Copyright (C) 1997 Jes Sorensen
+ *
+ * This file is based on the CyberVision64 frame buffer device and
+ * the generic Cirrus Logic driver.
+ *
+ * cyberfb.c: Copyright (C) 1996 Martin Apel,
+ * Geert Uytterhoeven
+ * clgen.c: Copyright (C) 1996 Frank Neumann
+ *
+ * History:
+ * - 22 Jan 97: Initial work
+ * - 14 Feb 97: Screen initialization works somewhat, still only
+ * 8-bit packed pixel is supported.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/zorro.h>
+#include <linux/init.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/irq.h>
+#include <asm/pgtable.h>
+#include <asm/io.h>
+
+#include <video/fbcon.h>
+#include <video/fbcon-cfb8.h>
+#include <video/fbcon-cfb16.h>
+
+#include "retz3fb.h"
+
+/* #define DEBUG if(1) */
+#define DEBUG if(0)
+
+/*
+ * Reserve space for one pattern line.
+ *
+ * For the time being we only support 4MB boards!
+ */
+
+#define PAT_MEM_SIZE 16*3
+#define PAT_MEM_OFF (4*1024*1024 - PAT_MEM_SIZE)
+
+struct retz3fb_par {
+ int xres;
+ int yres;
+ int xres_vir;
+ int yres_vir;
+ int xoffset;
+ int yoffset;
+ int bpp;
+
+ struct fb_bitfield red;
+ struct fb_bitfield green;
+ struct fb_bitfield blue;
+ struct fb_bitfield transp;
+
+ int pixclock;
+ int left_margin; /* time from sync to picture */
+ int right_margin; /* time from picture to sync */
+ int upper_margin; /* time from sync to picture */
+ int lower_margin;
+ int hsync_len; /* length of horizontal sync */
+ int vsync_len; /* length of vertical sync */
+ int vmode;
+
+ int accel;
+};
+
+struct display_data {
+ long h_total; /* Horizontal Total */
+ long h_sstart; /* Horizontal Sync Start */
+ long h_sstop; /* Horizontal Sync Stop */
+ long h_bstart; /* Horizontal Blank Start */
+ long h_bstop; /* Horizontal Blank Stop */
+ long h_dispend; /* Horizontal Display End */
+ long v_total; /* Vertical Total */
+ long v_sstart; /* Vertical Sync Start */
+ long v_sstop; /* Vertical Sync Stop */
+ long v_bstart; /* Vertical Blank Start */
+ long v_bstop; /* Vertical Blank Stop */
+ long v_dispend; /* Horizontal Display End */
+};
+
+struct retz3_fb_info {
+ struct fb_info info;
+ unsigned char *base;
+ unsigned char *fbmem;
+ unsigned long fbsize;
+ volatile unsigned char *regs;
+ unsigned long physfbmem;
+ unsigned long physregs;
+ int current_par_valid; /* set to 0 by memset */
+ int blitbusy;
+ struct display disp;
+ struct retz3fb_par current_par;
+ unsigned char color_table [256][3];
+};
+
+
+static char fontname[40] __initdata = { 0 };
+
+#define retz3info(info) ((struct retz3_fb_info *)(info))
+#define fbinfo(info) ((struct fb_info *)(info))
+
+
+/*
+ * Frame Buffer Name
+ */
+
+static char retz3fb_name[16] = "RetinaZ3";
+
+
+/*
+ * A small info on how to convert XFree86 timing values into fb
+ * timings - by Frank Neumann:
+ *
+An XFree86 mode line consists of the following fields:
+ "800x600" 50 800 856 976 1040 600 637 643 666
+ < name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL
+
+The fields in the fb_var_screeninfo structure are:
+ unsigned long pixclock; * pixel clock in ps (pico seconds) *
+ unsigned long left_margin; * time from sync to picture *
+ unsigned long right_margin; * time from picture to sync *
+ unsigned long upper_margin; * time from sync to picture *
+ unsigned long lower_margin;
+ unsigned long hsync_len; * length of horizontal sync *
+ unsigned long vsync_len; * length of vertical sync *
+
+1) Pixelclock:
+ xfree: in MHz
+ fb: In Picoseconds (ps)
+
+ pixclock = 1000000 / DCF
+
+2) horizontal timings:
+ left_margin = HFL - SH2
+ right_margin = SH1 - HR
+ hsync_len = SH2 - SH1
+
+3) vertical timings:
+ upper_margin = VFL - SV2
+ lower_margin = SV1 - VR
+ vsync_len = SV2 - SV1
+
+Good examples for VESA timings can be found in the XFree86 source tree,
+under "programs/Xserver/hw/xfree86/doc/modeDB.txt".
+*/
+
+/*
+ * Predefined Video Modes
+ */
+
+static struct {
+ const char *name;
+ struct fb_var_screeninfo var;
+} retz3fb_predefined[] __initdata = {
+ /*
+ * NB: it is very important to adjust the pixel-clock to the color-depth.
+ */
+
+ {
+ "640x480", { /* 640x480, 8 bpp */
+ 640, 480, 640, 480, 0, 0, 8, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, 39722, 48, 16, 33, 10, 96, 2,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED
+ }
+ },
+ /*
+ ModeLine "800x600" 36 800 824 896 1024 600 601 603 625
+ < name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL
+ */
+ {
+ "800x600", { /* 800x600, 8 bpp */
+ 800, 600, 800, 600, 0, 0, 8, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCELF_TEXT, 27778, 64, 24, 22, 1, 120, 2,
+ FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+ }
+ },
+ {
+ "800x600-60", { /* 800x600, 8 bpp */
+ 800, 600, 800, 600, 0, 0, 8, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCELF_TEXT, 25000, 88, 40, 23, 1, 128, 4,
+ FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+ }
+ },
+ {
+ "800x600-70", { /* 800x600, 8 bpp */
+ 800, 600, 800, 600, 0, 0, 8, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCELF_TEXT, 22272, 40, 24, 15, 9, 144, 12,
+ FB_SYNC_COMP_HIGH_ACT, FB_VMODE_NONINTERLACED
+ }
+ },
+ /*
+ ModeLine "1024x768i" 45 1024 1064 1224 1264 768 777 785 817 interlace
+ < name > DCF HR SH1 SH2 HFL VR SV1 SV2 VFL
+ */
+ {
+ "1024x768i", { /* 1024x768, 8 bpp, interlaced */
+ 1024, 768, 1024, 768, 0, 0, 8, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCELF_TEXT, 22222, 40, 40, 32, 9, 160, 8,
+ FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_INTERLACED
+ }
+ },
+ {
+ "1024x768", {
+ 1024, 768, 1024, 768, 0, 0, 8, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, 12500, 92, 112, 31, 2, 204, 4,
+ FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+ }
+ },
+ {
+ "640x480-16", { /* 640x480, 16 bpp */
+ 640, 480, 640, 480, 0, 0, 16, 0,
+ {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
+ 0, 0, -1, -1, 0, 38461/2, 28, 32, 12, 10, 96, 2,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED
+ }
+ },
+ {
+ "640x480-24", { /* 640x480, 24 bpp */
+ 640, 480, 640, 480, 0, 0, 24, 0,
+ {8, 8, 8}, {8, 8, 8}, {8, 8, 8}, {0, 0, 0},
+ 0, 0, -1, -1, 0, 38461/3, 28, 32, 12, 10, 96, 2,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,FB_VMODE_NONINTERLACED
+ }
+ },
+};
+
+
+#define NUM_TOTAL_MODES ARRAY_SIZE(retz3fb_predefined)
+
+static struct fb_var_screeninfo retz3fb_default;
+
+static int z3fb_inverse = 0;
+static int z3fb_mode __initdata = 0;
+
+
+/*
+ * Interface used by the world
+ */
+
+int retz3fb_setup(char *options);
+
+static int retz3fb_get_fix(struct fb_fix_screeninfo *fix, int con,
+ struct fb_info *info);
+static int retz3fb_get_var(struct fb_var_screeninfo *var, int con,
+ struct fb_info *info);
+static int retz3fb_set_var(struct fb_var_screeninfo *var, int con,
+ struct fb_info *info);
+static int retz3fb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
+ struct fb_info *info);
+static int retz3fb_setcolreg(unsigned int regno, unsigned int red,
+ unsigned int green, unsigned int blue,
+ unsigned int transp, struct fb_info *info);
+static int retz3fb_blank(int blank, struct fb_info *info);
+
+
+/*
+ * Interface to the low level console driver
+ */
+
+int retz3fb_init(void);
+static int z3fb_switch(int con, struct fb_info *info);
+static int z3fb_updatevar(int con, struct fb_info *info);
+
+
+/*
+ * Text console acceleration
+ */
+
+#ifdef FBCON_HAS_CFB8
+static struct display_switch fbcon_retz3_8;
+#endif
+
+
+/*
+ * Accelerated Functions used by the low level console driver
+ */
+
+static void retz3_bitblt(struct display *p,
+ unsigned short curx, unsigned short cury, unsigned
+ short destx, unsigned short desty, unsigned short
+ width, unsigned short height, unsigned short cmd,
+ unsigned short mask);
+
+/*
+ * Hardware Specific Routines
+ */
+
+static int retz3_encode_fix(struct fb_info *info,
+ struct fb_fix_screeninfo *fix,
+ struct retz3fb_par *par);
+static int retz3_decode_var(struct fb_var_screeninfo *var,
+ struct retz3fb_par *par);
+static int retz3_encode_var(struct fb_var_screeninfo *var,
+ struct retz3fb_par *par);
+static int retz3_getcolreg(unsigned int regno, unsigned int *red,
+ unsigned int *green, unsigned int *blue,
+ unsigned int *transp, struct fb_info *info);
+
+/*
+ * Internal routines
+ */
+
+static void retz3fb_get_par(struct fb_info *info, struct retz3fb_par *par);
+static void retz3fb_set_par(struct fb_info *info, struct retz3fb_par *par);
+static int do_fb_set_var(struct fb_info *info,
+ struct fb_var_screeninfo *var, int isactive);
+static void retz3fb_set_disp(int con, struct fb_info *info);
+static int get_video_mode(const char *name);
+
+
+/* -------------------- Hardware specific routines ------------------------- */
+
+static unsigned short find_fq(unsigned int freq)
+{
+ unsigned long f;
+ long tmp;
+ long prev = 0x7fffffff;
+ long n2, n1 = 3;
+ unsigned long m;
+ unsigned short res = 0;
+
+ if (freq <= 31250000)
+ n2 = 3;
+ else if (freq <= 62500000)
+ n2 = 2;
+ else if (freq <= 125000000)
+ n2 = 1;
+ else if (freq <= 250000000)
+ n2 = 0;
+ else
+ return 0;
+
+
+ do {
+ f = freq >> (10 - n2);
+
+ m = (f * n1) / (14318180/1024);
+
+ if (m > 129)
+ break;
+
+ tmp = (((m * 14318180) >> n2) / n1) - freq;
+ if (tmp < 0)
+ tmp = -tmp;
+
+ if (tmp < prev) {
+ prev = tmp;
+ res = (((n2 << 5) | (n1-2)) << 8) | (m-2);
+ }
+
+ } while ( (++n1) <= 21);
+
+ return res;
+}
+
+
+static int retz3_set_video(struct fb_info *info,
+ struct fb_var_screeninfo *var,
+ struct retz3fb_par *par)
+{
+ volatile unsigned char *regs = retz3info(info)->regs;
+ unsigned int freq;
+
+ int xres, hfront, hsync, hback;
+ int yres, vfront, vsync, vback;
+ unsigned char tmp;
+ unsigned short best_freq;
+ struct display_data data;
+
+ short clocksel = 0; /* Apparantly this is always zero */
+
+ int bpp = var->bits_per_pixel;
+
+ /*
+ * XXX
+ */
+ if (bpp == 24)
+ return 0;
+
+ if ((bpp != 8) && (bpp != 16) && (bpp != 24))
+ return -EFAULT;
+
+ par->xoffset = 0;
+ par->yoffset = 0;
+
+ xres = var->xres * bpp / 4;
+ hfront = var->right_margin * bpp / 4;
+ hsync = var->hsync_len * bpp / 4;
+ hback = var->left_margin * bpp / 4;
+
+ if (var->vmode & FB_VMODE_DOUBLE)
+ {
+ yres = var->yres * 2;
+ vfront = var->lower_margin * 2;
+ vsync = var->vsync_len * 2;
+ vback = var->upper_margin * 2;
+ }
+ else if (var->vmode & FB_VMODE_INTERLACED)
+ {
+ yres = (var->yres + 1) / 2;
+ vfront = (var->lower_margin + 1) / 2;
+ vsync = (var->vsync_len + 1) / 2;
+ vback = (var->upper_margin + 1) / 2;
+ }
+ else
+ {
+ yres = var->yres; /* -1 ? */
+ vfront = var->lower_margin;
+ vsync = var->vsync_len;
+ vback = var->upper_margin;
+ }
+
+ data.h_total = (hback / 8) + (xres / 8)
+ + (hfront / 8) + (hsync / 8) - 1 /* + 1 */;
+ data.h_dispend = ((xres + bpp - 1)/ 8) - 1;
+ data.h_bstart = xres / 8 - 1 /* + 1 */;
+
+ data.h_bstop = data.h_total+1 + 2 + 1;
+ data.h_sstart = (xres / 8) + (hfront / 8) + 1;
+ data.h_sstop = (xres / 8) + (hfront / 8) + (hsync / 8) + 1;
+
+ data.v_total = yres + vfront + vsync + vback - 1;
+
+ data.v_dispend = yres - 1;
+ data.v_bstart = yres - 1;
+
+ data.v_bstop = data.v_total;
+ data.v_sstart = yres + vfront - 1 - 2;
+ data.v_sstop = yres + vfront + vsync - 1;
+
+#if 0 /* testing */
+
+ printk("HBS: %i\n", data.h_bstart);
+ printk("HSS: %i\n", data.h_sstart);
+ printk("HSE: %i\n", data.h_sstop);
+ printk("HBE: %i\n", data.h_bstop);
+ printk("HT: %i\n", data.h_total);
+
+ printk("hsync: %i\n", hsync);
+ printk("hfront: %i\n", hfront);
+ printk("hback: %i\n", hback);
+
+ printk("VBS: %i\n", data.v_bstart);
+ printk("VSS: %i\n", data.v_sstart);
+ printk("VSE: %i\n", data.v_sstop);
+ printk("VBE: %i\n", data.v_bstop);
+ printk("VT: %i\n", data.v_total);
+
+ printk("vsync: %i\n", vsync);
+ printk("vfront: %i\n", vfront);
+ printk("vback: %i\n", vback);
+#endif
+
+ if (data.v_total >= 1024)
+ printk(KERN_ERR "MAYDAY: v_total >= 1024; bailing out!\n");
+
+ reg_w(regs, GREG_MISC_OUTPUT_W, 0xe3 | ((clocksel & 3) * 0x04));
+ reg_w(regs, GREG_FEATURE_CONTROL_W, 0x00);
+
+ seq_w(regs, SEQ_RESET, 0x00);
+ seq_w(regs, SEQ_RESET, 0x03); /* reset sequencer logic */
+
+ /*
+ * CLOCKING_MODE bits:
+ * 2: This one is only set for certain text-modes, wonder if
+ * it may be for EGA-lines? (it was referred to as CLKDIV2)
+ * (The CL drivers sets it to 0x21 with the comment:
+ * FullBandwidth (video off) and 8/9 dot clock)
+ */
+ seq_w(regs, SEQ_CLOCKING_MODE, 0x01 | 0x00 /* 0x08 */);
+
+ seq_w(regs, SEQ_MAP_MASK, 0x0f); /* enable writing to plane 0-3 */
+ seq_w(regs, SEQ_CHAR_MAP_SELECT, 0x00); /* doesn't matter in gfx-mode */
+ seq_w(regs, SEQ_MEMORY_MODE, 0x06); /* CL driver says 0x0e for 256 col mode*/
+ seq_w(regs, SEQ_RESET, 0x01);
+ seq_w(regs, SEQ_RESET, 0x03);
+
+ seq_w(regs, SEQ_EXTENDED_ENABLE, 0x05);
+
+ seq_w(regs, SEQ_CURSOR_CONTROL, 0x00); /* disable cursor */
+ seq_w(regs, SEQ_PRIM_HOST_OFF_HI, 0x00);
+ seq_w(regs, SEQ_PRIM_HOST_OFF_HI, 0x00);
+ seq_w(regs, SEQ_LINEAR_0, 0x4a);
+ seq_w(regs, SEQ_LINEAR_1, 0x00);
+
+ seq_w(regs, SEQ_SEC_HOST_OFF_HI, 0x00);
+ seq_w(regs, SEQ_SEC_HOST_OFF_LO, 0x00);
+ seq_w(regs, SEQ_EXTENDED_MEM_ENA, 0x3 | 0x4 | 0x10 | 0x40);
+
+ /*
+ * The lower 4 bits (0-3) are used to set the font-width for
+ * text-mode - DON'T try to set this for gfx-mode.
+ */
+ seq_w(regs, SEQ_EXT_CLOCK_MODE, 0x10);
+ seq_w(regs, SEQ_EXT_VIDEO_ADDR, 0x03);
+
+ /*
+ * Extended Pixel Control:
+ * bit 0: text-mode=0, gfx-mode=1 (Graphics Byte ?)
+ * bit 1: (Packed/Nibble Pixel Format ?)
+ * bit 4-5: depth, 0=1-8bpp, 1=9-16bpp, 2=17-24bpp
+ */
+ seq_w(regs, SEQ_EXT_PIXEL_CNTL, 0x01 | (((bpp / 8) - 1) << 4));
+
+ seq_w(regs, SEQ_BUS_WIDTH_FEEDB, 0x04);
+ seq_w(regs, SEQ_COLOR_EXP_WFG, 0x01);
+ seq_w(regs, SEQ_COLOR_EXP_WBG, 0x00);
+ seq_w(regs, SEQ_EXT_RW_CONTROL, 0x00);
+ seq_w(regs, SEQ_MISC_FEATURE_SEL, (0x51 | (clocksel & 8)));
+ seq_w(regs, SEQ_COLOR_KEY_CNTL, 0x40);
+ seq_w(regs, SEQ_COLOR_KEY_MATCH0, 0x00);
+ seq_w(regs, SEQ_COLOR_KEY_MATCH1, 0x00);
+ seq_w(regs, SEQ_COLOR_KEY_MATCH2, 0x00);
+ seq_w(regs, SEQ_CRC_CONTROL, 0x00);
+ seq_w(regs, SEQ_PERF_SELECT, 0x10);
+ seq_w(regs, SEQ_ACM_APERTURE_1, 0x00);
+ seq_w(regs, SEQ_ACM_APERTURE_2, 0x30);
+ seq_w(regs, SEQ_ACM_APERTURE_3, 0x00);
+ seq_w(regs, SEQ_MEMORY_MAP_CNTL, 0x03);
+
+
+ /* unlock register CRT0..CRT7 */
+ crt_w(regs, CRT_END_VER_RETR, (data.v_sstop & 0x0f) | 0x20);
+
+ /* Zuerst zu schreibende Werte nur per printk ausgeben */
+ DEBUG printk("CRT_HOR_TOTAL: %ld\n", data.h_total);
+ crt_w(regs, CRT_HOR_TOTAL, data.h_total & 0xff);
+
+ DEBUG printk("CRT_HOR_DISP_ENA_END: %ld\n", data.h_dispend);
+ crt_w(regs, CRT_HOR_DISP_ENA_END, (data.h_dispend) & 0xff);
+
+ DEBUG printk("CRT_START_HOR_BLANK: %ld\n", data.h_bstart);
+ crt_w(regs, CRT_START_HOR_BLANK, data.h_bstart & 0xff);
+
+ DEBUG printk("CRT_END_HOR_BLANK: 128+%ld\n", data.h_bstop % 32);
+ crt_w(regs, CRT_END_HOR_BLANK, 0x80 | (data.h_bstop & 0x1f));
+
+ DEBUG printk("CRT_START_HOR_RETR: %ld\n", data.h_sstart);
+ crt_w(regs, CRT_START_HOR_RETR, data.h_sstart & 0xff);
+
+ tmp = (data.h_sstop & 0x1f);
+ if (data.h_bstop & 0x20)
+ tmp |= 0x80;
+ DEBUG printk("CRT_END_HOR_RETR: %d\n", tmp);
+ crt_w(regs, CRT_END_HOR_RETR, tmp);
+
+ DEBUG printk("CRT_VER_TOTAL: %ld\n", data.v_total & 0xff);
+ crt_w(regs, CRT_VER_TOTAL, (data.v_total & 0xff));
+
+ tmp = 0x10; /* LineCompare bit #9 */
+ if (data.v_total & 256)
+ tmp |= 0x01;
+ if (data.v_dispend & 256)
+ tmp |= 0x02;
+ if (data.v_sstart & 256)
+ tmp |= 0x04;
+ if (data.v_bstart & 256)
+ tmp |= 0x08;
+ if (data.v_total & 512)
+ tmp |= 0x20;
+ if (data.v_dispend & 512)
+ tmp |= 0x40;
+ if (data.v_sstart & 512)
+ tmp |= 0x80;
+ DEBUG printk("CRT_OVERFLOW: %d\n", tmp);
+ crt_w(regs, CRT_OVERFLOW, tmp);
+
+ crt_w(regs, CRT_PRESET_ROW_SCAN, 0x00); /* not CL !!! */
+
+ tmp = 0x40; /* LineCompare bit #8 */
+ if (data.v_bstart & 512)
+ tmp |= 0x20;
+ if (var->vmode & FB_VMODE_DOUBLE)
+ tmp |= 0x80;
+ DEBUG printk("CRT_MAX_SCAN_LINE: %d\n", tmp);
+ crt_w(regs, CRT_MAX_SCAN_LINE, tmp);
+
+ crt_w(regs, CRT_CURSOR_START, 0x00);
+ crt_w(regs, CRT_CURSOR_END, 8 & 0x1f); /* font height */
+
+ crt_w(regs, CRT_START_ADDR_HIGH, 0x00);
+ crt_w(regs, CRT_START_ADDR_LOW, 0x00);
+
+ crt_w(regs, CRT_CURSOR_LOC_HIGH, 0x00);
+ crt_w(regs, CRT_CURSOR_LOC_LOW, 0x00);
+
+ DEBUG printk("CRT_START_VER_RETR: %ld\n", data.v_sstart & 0xff);
+ crt_w(regs, CRT_START_VER_RETR, (data.v_sstart & 0xff));
+
+#if 1
+ /* 5 refresh cycles per scanline */
+ DEBUG printk("CRT_END_VER_RETR: 64+32+%ld\n", data.v_sstop % 16);
+ crt_w(regs, CRT_END_VER_RETR, ((data.v_sstop & 0x0f) | 0x40 | 0x20));
+#else
+ DEBUG printk("CRT_END_VER_RETR: 128+32+%ld\n", data.v_sstop % 16);
+ crt_w(regs, CRT_END_VER_RETR, ((data.v_sstop & 0x0f) | 128 | 32));
+#endif
+ DEBUG printk("CRT_VER_DISP_ENA_END: %ld\n", data.v_dispend & 0xff);
+ crt_w(regs, CRT_VER_DISP_ENA_END, (data.v_dispend & 0xff));
+
+ DEBUG printk("CRT_START_VER_BLANK: %ld\n", data.v_bstart & 0xff);
+ crt_w(regs, CRT_START_VER_BLANK, (data.v_bstart & 0xff));
+
+ DEBUG printk("CRT_END_VER_BLANK: %ld\n", data.v_bstop & 0xff);
+ crt_w(regs, CRT_END_VER_BLANK, (data.v_bstop & 0xff));
+
+ DEBUG printk("CRT_MODE_CONTROL: 0xe3\n");
+ crt_w(regs, CRT_MODE_CONTROL, 0xe3);
+
+ DEBUG printk("CRT_LINE_COMPARE: 0xff\n");
+ crt_w(regs, CRT_LINE_COMPARE, 0xff);
+
+ tmp = (var->xres_virtual / 8) * (bpp / 8);
+ crt_w(regs, CRT_OFFSET, tmp);
+
+ crt_w(regs, CRT_UNDERLINE_LOC, 0x07); /* probably font-height - 1 */
+
+ tmp = 0x20; /* Enable extended end bits */
+ if (data.h_total & 0x100)
+ tmp |= 0x01;
+ if ((data.h_dispend) & 0x100)
+ tmp |= 0x02;
+ if (data.h_bstart & 0x100)
+ tmp |= 0x04;
+ if (data.h_sstart & 0x100)
+ tmp |= 0x08;
+ if (var->vmode & FB_VMODE_INTERLACED)
+ tmp |= 0x10;
+ DEBUG printk("CRT_EXT_HOR_TIMING1: %d\n", tmp);
+ crt_w(regs, CRT_EXT_HOR_TIMING1, tmp);
+
+ tmp = 0x00;
+ if (((var->xres_virtual / 8) * (bpp / 8)) & 0x100)
+ tmp |= 0x10;
+ crt_w(regs, CRT_EXT_START_ADDR, tmp);
+
+ tmp = 0x00;
+ if (data.h_total & 0x200)
+ tmp |= 0x01;
+ if ((data.h_dispend) & 0x200)
+ tmp |= 0x02;
+ if (data.h_bstart & 0x200)
+ tmp |= 0x04;
+ if (data.h_sstart & 0x200)
+ tmp |= 0x08;
+ tmp |= ((data.h_bstop & 0xc0) >> 2);
+ tmp |= ((data.h_sstop & 0x60) << 1);
+ crt_w(regs, CRT_EXT_HOR_TIMING2, tmp);
+ DEBUG printk("CRT_EXT_HOR_TIMING2: %d\n", tmp);
+
+ tmp = 0x10; /* Line compare bit 10 */
+ if (data.v_total & 0x400)
+ tmp |= 0x01;
+ if ((data.v_dispend) & 0x400)
+ tmp |= 0x02;
+ if (data.v_bstart & 0x400)
+ tmp |= 0x04;
+ if (data.v_sstart & 0x400)
+ tmp |= 0x08;
+ tmp |= ((data.v_bstop & 0x300) >> 3);
+ if (data.v_sstop & 0x10)
+ tmp |= 0x80;
+ crt_w(regs, CRT_EXT_VER_TIMING, tmp);
+ DEBUG printk("CRT_EXT_VER_TIMING: %d\n", tmp);
+
+ crt_w(regs, CRT_MONITOR_POWER, 0x00);
+
+ /*
+ * Convert from ps to Hz.
+ */
+ freq = 2000000000 / var->pixclock;
+ freq = freq * 500;
+
+ best_freq = find_fq(freq);
+ pll_w(regs, 0x02, best_freq);
+ best_freq = find_fq(61000000);
+ pll_w(regs, 0x0a, best_freq);
+ pll_w(regs, 0x0e, 0x22);
+
+ gfx_w(regs, GFX_SET_RESET, 0x00);
+ gfx_w(regs, GFX_ENABLE_SET_RESET, 0x00);
+ gfx_w(regs, GFX_COLOR_COMPARE, 0x00);
+ gfx_w(regs, GFX_DATA_ROTATE, 0x00);
+ gfx_w(regs, GFX_READ_MAP_SELECT, 0x00);
+ gfx_w(regs, GFX_GRAPHICS_MODE, 0x00);
+ gfx_w(regs, GFX_MISC, 0x05);
+ gfx_w(regs, GFX_COLOR_XCARE, 0x0f);
+ gfx_w(regs, GFX_BITMASK, 0xff);
+
+ reg_r(regs, ACT_ADDRESS_RESET);
+ attr_w(regs, ACT_PALETTE0 , 0x00);
+ attr_w(regs, ACT_PALETTE1 , 0x01);
+ attr_w(regs, ACT_PALETTE2 , 0x02);
+ attr_w(regs, ACT_PALETTE3 , 0x03);
+ attr_w(regs, ACT_PALETTE4 , 0x04);
+ attr_w(regs, ACT_PALETTE5 , 0x05);
+ attr_w(regs, ACT_PALETTE6 , 0x06);
+ attr_w(regs, ACT_PALETTE7 , 0x07);
+ attr_w(regs, ACT_PALETTE8 , 0x08);
+ attr_w(regs, ACT_PALETTE9 , 0x09);
+ attr_w(regs, ACT_PALETTE10, 0x0a);
+ attr_w(regs, ACT_PALETTE11, 0x0b);
+ attr_w(regs, ACT_PALETTE12, 0x0c);
+ attr_w(regs, ACT_PALETTE13, 0x0d);
+ attr_w(regs, ACT_PALETTE14, 0x0e);
+ attr_w(regs, ACT_PALETTE15, 0x0f);
+ reg_r(regs, ACT_ADDRESS_RESET);
+
+ attr_w(regs, ACT_ATTR_MODE_CNTL, 0x09); /* 0x01 for CL */
+
+ attr_w(regs, ACT_OVERSCAN_COLOR, 0x00);
+ attr_w(regs, ACT_COLOR_PLANE_ENA, 0x0f);
+ attr_w(regs, ACT_HOR_PEL_PANNING, 0x00);
+ attr_w(regs, ACT_COLOR_SELECT, 0x00);
+
+ reg_r(regs, ACT_ADDRESS_RESET);
+ reg_w(regs, ACT_DATA, 0x20);
+
+ reg_w(regs, VDAC_MASK, 0xff);
+
+ /*
+ * Extended palette addressing ???
+ */
+ switch (bpp){
+ case 8:
+ reg_w(regs, 0x83c6, 0x00);
+ break;
+ case 16:
+ reg_w(regs, 0x83c6, 0x60);
+ break;
+ case 24:
+ reg_w(regs, 0x83c6, 0xe0);
+ break;
+ default:
+ printk(KERN_INFO "Illegal color-depth: %i\n", bpp);
+ }
+
+ reg_w(regs, VDAC_ADDRESS, 0x00);
+
+ seq_w(regs, SEQ_MAP_MASK, 0x0f );
+
+ return 0;
+}
+
+
+/*
+ * This function should fill in the `fix' structure based on the
+ * values in the `par' structure.
+ */
+
+static int retz3_encode_fix(struct fb_info *info,
+ struct fb_fix_screeninfo *fix,
+ struct retz3fb_par *par)
+{
+ struct retz3_fb_info *zinfo = retz3info(info);
+
+ memset(fix, 0, sizeof(struct fb_fix_screeninfo));
+ strcpy(fix->id, retz3fb_name);
+ fix->smem_start = zinfo->physfbmem;
+ fix->smem_len = zinfo->fbsize;
+ fix->mmio_start = zinfo->physregs;
+ fix->mmio_len = 0x00c00000;
+
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->type_aux = 0;
+ if (par->bpp == 8)
+ fix->visual = FB_VISUAL_PSEUDOCOLOR;
+ else
+ fix->visual = FB_VISUAL_TRUECOLOR;
+
+ fix->xpanstep = 0;
+ fix->ypanstep = 0;
+ fix->ywrapstep = 0;
+ fix->line_length = 0;
+
+ fix->accel = FB_ACCEL_NCR_77C32BLT;
+
+ return 0;
+}
+
+
+/*
+ * Get the video params out of `var'. If a value doesn't fit, round
+ * it up, if it's too big, return -EINVAL.
+ */
+
+static int retz3_decode_var(struct fb_var_screeninfo *var,
+ struct retz3fb_par *par)
+{
+ par->xres = var->xres;
+ par->yres = var->yres;
+ par->xres_vir = var->xres_virtual;
+ par->yres_vir = var->yres_virtual;
+ par->bpp = var->bits_per_pixel;
+ par->pixclock = var->pixclock;
+ par->vmode = var->vmode;
+
+ par->red = var->red;
+ par->green = var->green;
+ par->blue = var->blue;
+ par->transp = var->transp;
+
+ par->left_margin = var->left_margin;
+ par->right_margin = var->right_margin;
+ par->upper_margin = var->upper_margin;
+ par->lower_margin = var->lower_margin;
+ par->hsync_len = var->hsync_len;
+ par->vsync_len = var->vsync_len;
+
+ if (var->accel_flags & FB_ACCELF_TEXT)
+ par->accel = FB_ACCELF_TEXT;
+ else
+ par->accel = 0;
+
+ return 0;
+}
+
+
+/*
+ * Fill the `var' structure based on the values in `par' and maybe
+ * other values read out of the hardware.
+ */
+
+static int retz3_encode_var(struct fb_var_screeninfo *var,
+ struct retz3fb_par *par)
+{
+ memset(var, 0, sizeof(struct fb_var_screeninfo));
+ var->xres = par->xres;
+ var->yres = par->yres;
+ var->xres_virtual = par->xres_vir;
+ var->yres_virtual = par->yres_vir;
+ var->xoffset = 0;
+ var->yoffset = 0;
+
+ var->bits_per_pixel = par->bpp;
+ var->grayscale = 0;
+
+ var->red = par->red;
+ var->green = par->green;
+ var->blue = par->blue;
+ var->transp = par->transp;
+
+ var->nonstd = 0;
+ var->activate = 0;
+
+ var->height = -1;
+ var->width = -1;
+
+ var->accel_flags = (par->accel && par->bpp == 8) ? FB_ACCELF_TEXT : 0;
+
+ var->pixclock = par->pixclock;
+
+ var->sync = 0; /* ??? */
+ var->left_margin = par->left_margin;
+ var->right_margin = par->right_margin;
+ var->upper_margin = par->upper_margin;
+ var->lower_margin = par->lower_margin;
+ var->hsync_len = par->hsync_len;
+ var->vsync_len = par->vsync_len;
+
+ var->vmode = par->vmode;
+ return 0;
+}
+
+
+/*
+ * Set a single color register. Return != 0 for invalid regno.
+ */
+
+static int retz3fb_setcolreg(unsigned int regno, unsigned int red,
+ unsigned int green, unsigned int blue,
+ unsigned int transp, struct fb_info *info)
+{
+ struct retz3_fb_info *zinfo = retz3info(info);
+ volatile unsigned char *regs = zinfo->regs;
+
+ /* We'll get to this */
+
+ if (regno > 255)
+ return 1;
+
+ red >>= 10;
+ green >>= 10;
+ blue >>= 10;
+
+ zinfo->color_table[regno][0] = red;
+ zinfo->color_table[regno][1] = green;
+ zinfo->color_table[regno][2] = blue;
+
+ reg_w(regs, VDAC_ADDRESS_W, regno);
+ reg_w(regs, VDAC_DATA, red);
+ reg_w(regs, VDAC_DATA, green);
+ reg_w(regs, VDAC_DATA, blue);
+
+ return 0;
+}
+
+
+/*
+ * Read a single color register and split it into
+ * colors/transparent. Return != 0 for invalid regno.
+ */
+
+static int retz3_getcolreg(unsigned int regno, unsigned int *red,
+ unsigned int *green, unsigned int *blue,
+ unsigned int *transp, struct fb_info *info)
+{
+ struct retz3_fb_info *zinfo = retz3info(info);
+ int t;
+
+ if (regno > 255)
+ return 1;
+ t = zinfo->color_table[regno][0];
+ *red = (t<<10) | (t<<4) | (t>>2);
+ t = zinfo->color_table[regno][1];
+ *green = (t<<10) | (t<<4) | (t>>2);
+ t = zinfo->color_table[regno][2];
+ *blue = (t<<10) | (t<<4) | (t>>2);
+ *transp = 0;
+ return 0;
+}
+
+
+static inline void retz3_busy(struct display *p)
+{
+ struct retz3_fb_info *zinfo = retz3info(p->fb_info);
+ volatile unsigned char *acm = zinfo->base + ACM_OFFSET;
+ unsigned char blt_status;
+
+ if (zinfo->blitbusy) {
+ do{
+ blt_status = *((acm) + (ACM_START_STATUS + 2));
+ }while ((blt_status & 1) == 0);
+ zinfo->blitbusy = 0;
+ }
+}
+
+
+static void retz3_bitblt (struct display *p,
+ unsigned short srcx, unsigned short srcy,
+ unsigned short destx, unsigned short desty,
+ unsigned short width, unsigned short height,
+ unsigned short cmd, unsigned short mask)
+{
+ struct fb_var_screeninfo *var = &p->var;
+ struct retz3_fb_info *zinfo = retz3info(p->fb_info);
+ volatile unsigned long *acm = (unsigned long *)(zinfo->base + ACM_OFFSET);
+ unsigned long *pattern = (unsigned long *)(zinfo->fbmem + PAT_MEM_OFF);
+
+ unsigned short mod;
+ unsigned long tmp;
+ unsigned long pat, src, dst;
+
+ int i, xres_virtual = var->xres_virtual;
+ short bpp = (var->bits_per_pixel & 0xff);
+
+ if (bpp < 8)
+ bpp = 8;
+
+ tmp = mask | (mask << 16);
+
+ retz3_busy(p);
+
+ i = 0;
+ do{
+ *pattern++ = tmp;
+ }while(i++ < bpp/4);
+
+ tmp = cmd << 8;
+ *(acm + ACM_RASTEROP_ROTATION/4) = tmp;
+
+ mod = 0xc0c2;
+
+ pat = 8 * PAT_MEM_OFF;
+ dst = bpp * (destx + desty * xres_virtual);
+
+ /*
+ * Source is not set for clear.
+ */
+ if ((cmd != Z3BLTclear) && (cmd != Z3BLTset)) {
+ src = bpp * (srcx + srcy * xres_virtual);
+
+ if (destx > srcx) {
+ mod &= ~0x8000;
+ src += bpp * (width - 1);
+ dst += bpp * (width - 1);
+ pat += bpp * 2;
+ }
+ if (desty > srcy) {
+ mod &= ~0x4000;
+ src += bpp * (height - 1) * xres_virtual;
+ dst += bpp * (height - 1) * xres_virtual;
+ pat += bpp * 4;
+ }
+
+ *(acm + ACM_SOURCE/4) = cpu_to_le32(src);
+ }
+
+ *(acm + ACM_PATTERN/4) = cpu_to_le32(pat);
+
+ *(acm + ACM_DESTINATION/4) = cpu_to_le32(dst);
+
+ tmp = mod << 16;
+ *(acm + ACM_CONTROL/4) = tmp;
+
+ tmp = width | (height << 16);
+
+ *(acm + ACM_BITMAP_DIMENSION/4) = cpu_to_le32(tmp);
+
+ *(((volatile unsigned char *)acm) + ACM_START_STATUS) = 0x00;
+ *(((volatile unsigned char *)acm) + ACM_START_STATUS) = 0x01;
+ zinfo->blitbusy = 1;
+}
+
+#if 0
+/*
+ * Move cursor to x, y
+ */
+static void retz3_MoveCursor (unsigned short x, unsigned short y)
+{
+ /* Guess we gotta deal with the cursor at some point */
+}
+#endif
+
+
+/*
+ * Fill the hardware's `par' structure.
+ */
+
+static void retz3fb_get_par(struct fb_info *info, struct retz3fb_par *par)
+{
+ struct retz3_fb_info *zinfo = retz3info(info);
+
+ if (zinfo->current_par_valid)
+ *par = zinfo->current_par;
+ else
+ retz3_decode_var(&retz3fb_default, par);
+}
+
+
+static void retz3fb_set_par(struct fb_info *info, struct retz3fb_par *par)
+{
+ struct retz3_fb_info *zinfo = retz3info(info);
+
+ zinfo->current_par = *par;
+ zinfo->current_par_valid = 1;
+}
+
+
+static int do_fb_set_var(struct fb_info *info,
+ struct fb_var_screeninfo *var, int isactive)
+{
+ int err, activate;
+ struct retz3fb_par par;
+ struct retz3_fb_info *zinfo = retz3info(info);
+
+ if ((err = retz3_decode_var(var, &par)))
+ return err;
+ activate = var->activate;
+
+ /* XXX ... what to do about isactive ? */
+
+ if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW && isactive)
+ retz3fb_set_par(info, &par);
+ retz3_encode_var(var, &par);
+ var->activate = activate;
+
+ retz3_set_video(info, var, &zinfo->current_par);
+
+ return 0;
+}
+
+/*
+ * Get the Fixed Part of the Display
+ */
+
+static int retz3fb_get_fix(struct fb_fix_screeninfo *fix, int con,
+ struct fb_info *info)
+{
+ struct retz3fb_par par;
+ int error = 0;
+
+ if (con == -1)
+ retz3fb_get_par(info, &par);
+ else
+ error = retz3_decode_var(&fb_display[con].var, &par);
+ return(error ? error : retz3_encode_fix(info, fix, &par));
+}
+
+
+/*
+ * Get the User Defined Part of the Display
+ */
+
+static int retz3fb_get_var(struct fb_var_screeninfo *var, int con,
+ struct fb_info *info)
+{
+ struct retz3fb_par par;
+ int error = 0;
+
+ if (con == -1) {
+ retz3fb_get_par(info, &par);
+ error = retz3_encode_var(var, &par);
+ } else
+ *var = fb_display[con].var;
+ return error;
+}
+
+
+static void retz3fb_set_disp(int con, struct fb_info *info)
+{
+ struct fb_fix_screeninfo fix;
+ struct display *display;
+ struct retz3_fb_info *zinfo = retz3info(info);
+
+ if (con >= 0)
+ display = &fb_display[con];
+ else
+ display = &zinfo->disp; /* used during initialization */
+
+ retz3fb_get_fix(&fix, con, info);
+
+ if (con == -1)
+ con = 0;
+
+ display->visual = fix.visual;
+ display->type = fix.type;
+ display->type_aux = fix.type_aux;
+ display->ypanstep = fix.ypanstep;
+ display->ywrapstep = fix.ywrapstep;
+ display->can_soft_blank = 1;
+ display->inverse = z3fb_inverse;
+
+ /*
+ * This seems to be about 20% faster.
+ */
+ display->scrollmode = SCROLL_YREDRAW;
+
+ switch (display->var.bits_per_pixel) {
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ if (display->var.accel_flags & FB_ACCELF_TEXT) {
+ display->dispsw = &fbcon_retz3_8;
+ retz3_set_video(info, &display->var, &zinfo->current_par);
+ } else
+ display->dispsw = &fbcon_cfb8;
+ break;
+#endif
+#ifdef FBCON_HAS_CFB16
+ case 16:
+ display->dispsw = &fbcon_cfb16;
+ break;
+#endif
+ default:
+ display->dispsw = &fbcon_dummy;
+ break;
+ }
+}
+
+
+/*
+ * Set the User Defined Part of the Display
+ */
+
+static int retz3fb_set_var(struct fb_var_screeninfo *var, int con,
+ struct fb_info *info)
+{
+ int err, oldxres, oldyres, oldvxres, oldvyres, oldbpp, oldaccel;
+ struct display *display;
+ struct retz3_fb_info *zinfo = retz3info(info);
+
+ if (con >= 0)
+ display = &fb_display[con];
+ else
+ display = &zinfo->disp; /* used during initialization */
+
+ if ((err = do_fb_set_var(info, var, con == info->currcon)))
+ return err;
+ if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
+ oldxres = display->var.xres;
+ oldyres = display->var.yres;
+ oldvxres = display->var.xres_virtual;
+ oldvyres = display->var.yres_virtual;
+ oldbpp = display->var.bits_per_pixel;
+ oldaccel = display->var.accel_flags;
+ display->var = *var;
+
+ if (oldxres != var->xres || oldyres != var->yres ||
+ oldvxres != var->xres_virtual ||
+ oldvyres != var->yres_virtual ||
+ oldbpp != var->bits_per_pixel ||
+ oldaccel != var->accel_flags) {
+
+ struct fb_fix_screeninfo fix;
+ retz3fb_get_fix(&fix, con, info);
+
+ display->visual = fix.visual;
+ display->type = fix.type;
+ display->type_aux = fix.type_aux;
+ display->ypanstep = fix.ypanstep;
+ display->ywrapstep = fix.ywrapstep;
+ display->line_length = fix.line_length;
+ display->can_soft_blank = 1;
+ display->inverse = z3fb_inverse;
+ switch (display->var.bits_per_pixel) {
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ if (var->accel_flags & FB_ACCELF_TEXT) {
+ display->dispsw = &fbcon_retz3_8;
+ } else
+ display->dispsw = &fbcon_cfb8;
+ break;
+#endif
+#ifdef FBCON_HAS_CFB16
+ case 16:
+ display->dispsw = &fbcon_cfb16;
+ break;
+#endif
+ default:
+ display->dispsw = &fbcon_dummy;
+ break;
+ }
+ /*
+ * We still need to find a way to tell the X
+ * server that the video mem has been fiddled with
+ * so it redraws the entire screen when switching
+ * between X and a text console.
+ */
+ retz3_set_video(info, var, &zinfo->current_par);
+
+ if (info->changevar)
+ (*info->changevar)(con);
+ }
+
+ if (oldbpp != var->bits_per_pixel) {
+ if ((err = fb_alloc_cmap(&display->cmap, 0, 0)))
+ return err;
+ do_install_cmap(con, info);
+ }
+ }
+ return 0;
+}
+
+
+/*
+ * Get the Colormap
+ */
+
+static int retz3fb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
+ struct fb_info *info)
+{
+ if (con == info->currcon) /* current console? */
+ return(fb_get_cmap(cmap, kspc, retz3_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(1<<fb_display[con].var.bits_per_pixel),
+ cmap, kspc ? 0 : 2);
+ return 0;
+}
+
+/*
+ * Blank the display.
+ */
+
+static int retz3fb_blank(int blank, struct fb_info *info)
+{
+ struct retz3_fb_info *zinfo = retz3info(info);
+ volatile unsigned char *regs = retz3info(info)->regs;
+ short i;
+
+ if (blank)
+ for (i = 0; i < 256; i++){
+ reg_w(regs, VDAC_ADDRESS_W, i);
+ reg_w(regs, VDAC_DATA, 0);
+ reg_w(regs, VDAC_DATA, 0);
+ reg_w(regs, VDAC_DATA, 0);
+ }
+ else
+ for (i = 0; i < 256; i++){
+ reg_w(regs, VDAC_ADDRESS_W, i);
+ reg_w(regs, VDAC_DATA, zinfo->color_table[i][0]);
+ reg_w(regs, VDAC_DATA, zinfo->color_table[i][1]);
+ reg_w(regs, VDAC_DATA, zinfo->color_table[i][2]);
+ }
+ return 0;
+}
+
+static struct fb_ops retz3fb_ops = {
+ .owner = THIS_MODULE,
+ .fb_get_fix = retz3fb_get_fix,
+ .fb_get_var = retz3fb_get_var,
+ .fb_set_var = retz3fb_set_var,
+ .fb_get_cmap = retz3fb_get_cmap,
+ .fb_set_cmap = gen_set_cmap,
+ .fb_setcolreg = retz3fb_setcolreg,
+ .fb_blank = retz3fb_blank,
+};
+
+int __init retz3fb_setup(char *options)
+{
+ char *this_opt;
+
+ if (!options || !*options)
+ return 0;
+
+ while ((this_opt = strsep(&options, ",")) != NULL) {
+ if (!*this_opt)
+ continue;
+ if (!strcmp(this_opt, "inverse")) {
+ z3fb_inverse = 1;
+ fb_invert_cmaps();
+ } else if (!strncmp(this_opt, "font:", 5)) {
+ strlcpy(fontname, this_opt+5, sizeof(fontname));
+ } else
+ z3fb_mode = get_video_mode(this_opt);
+ }
+ return 0;
+}
+
+
+/*
+ * Initialization
+ */
+
+int __init retz3fb_init(void)
+{
+ unsigned long board_addr, board_size;
+ struct zorro_dev *z = NULL;
+ volatile unsigned char *regs;
+ struct retz3fb_par par;
+ struct retz3_fb_info *zinfo;
+ struct fb_info *fb_info;
+ short i;
+ int res = -ENXIO;
+
+ while ((z = zorro_find_device(ZORRO_PROD_MACROSYSTEMS_RETINA_Z3, z))) {
+ board_addr = z->resource.start;
+ board_size = z->resource.end-z->resource.start+1;
+ if (!request_mem_region(board_addr, 0x0c00000,
+ "ncr77c32blt")) {
+ continue;
+ if (!request_mem_region(board_addr+VIDEO_MEM_OFFSET,
+ 0x00400000, "RAM"))
+ release_mem_region(board_addr, 0x00c00000);
+ continue;
+ }
+ if (!(zinfo = kmalloc(sizeof(struct retz3_fb_info),
+ GFP_KERNEL)))
+ return -ENOMEM;
+ memset(zinfo, 0, sizeof(struct retz3_fb_info));
+
+ zinfo->base = ioremap(board_addr, board_size);
+ zinfo->regs = zinfo->base;
+ zinfo->fbmem = zinfo->base + VIDEO_MEM_OFFSET;
+ /* Get memory size - for now we asume it's a 4MB board */
+ zinfo->fbsize = 0x00400000; /* 4 MB */
+ zinfo->physregs = board_addr;
+ zinfo->physfbmem = board_addr + VIDEO_MEM_OFFSET;
+
+ fb_info = fbinfo(zinfo);
+
+ for (i = 0; i < 256; i++){
+ for (i = 0; i < 256; i++){
+ zinfo->color_table[i][0] = i;
+ zinfo->color_table[i][1] = i;
+ zinfo->color_table[i][2] = i;
+ }
+ }
+
+ regs = zinfo->regs;
+ /* Disable hardware cursor */
+ seq_w(regs, SEQ_CURSOR_Y_INDEX, 0x00);
+
+ retz3fb_setcolreg (255, 56<<8, 100<<8, 160<<8, 0, fb_info);
+ retz3fb_setcolreg (254, 0, 0, 0, 0, fb_info);
+
+ strcpy(fb_info->modename, retz3fb_name);
+ fb_info->changevar = NULL;
+ fb_info->fbops = &retz3fb_ops;
+ fb_info->screen_base = zinfo->fbmem;
+ fb_info->disp = &zinfo->disp;
+ fb_info->currcon = -1;
+ fb_info->switch_con = &z3fb_switch;
+ fb_info->updatevar = &z3fb_updatevar;
+ fb_info->flags = FBINFO_FLAG_DEFAULT;
+ strlcpy(fb_info->fontname, fontname, sizeof(fb_info->fontname));
+
+ if (z3fb_mode == -1)
+ retz3fb_default = retz3fb_predefined[0].var;
+
+ retz3_decode_var(&retz3fb_default, &par);
+ retz3_encode_var(&retz3fb_default, &par);
+
+ do_fb_set_var(fb_info, &retz3fb_default, 0);
+ retz3fb_get_var(&zinfo->disp.var, -1, fb_info);
+
+ retz3fb_set_disp(-1, fb_info);
+
+ do_install_cmap(0, fb_info);
+
+ if (register_framebuffer(fb_info) < 0)
+ return -EINVAL;
+
+ printk(KERN_INFO "fb%d: %s frame buffer device, using %ldK of "
+ "video memory\n", fb_info->node,
+ fb_info->modename, zinfo->fbsize>>10);
+
+ /* FIXME: This driver cannot be unloaded yet */
+ res = 0;
+ }
+ return res;
+}
+
+
+static int z3fb_switch(int con, struct fb_info *info)
+{
+ /* Do we have to save the colormap? */
+ if (fb_display[info->currcon].cmap.len)
+ fb_get_cmap(&fb_display[info->currcon].cmap, 1,
+ retz3_getcolreg, info);
+
+ do_fb_set_var(info, &fb_display[con].var, 1);
+ info->currcon = con;
+ /* Install new colormap */
+ do_install_cmap(con, info);
+ return 0;
+}
+
+
+/*
+ * Update the `var' structure (called by fbcon.c)
+ *
+ * This call looks only at yoffset and the FB_VMODE_YWRAP flag in `var'.
+ * Since it's called by a kernel driver, no range checking is done.
+ */
+
+static int z3fb_updatevar(int con, struct fb_info *info)
+{
+ return 0;
+}
+
+/*
+ * Get a Video Mode
+ */
+
+static int __init get_video_mode(const char *name)
+{
+ short i;
+
+ for (i = 0; i < NUM_TOTAL_MODES; i++)
+ if (!strcmp(name, retz3fb_predefined[i].name)){
+ retz3fb_default = retz3fb_predefined[i].var;
+ return i;
+ }
+ return -1;
+}
+
+
+#ifdef MODULE
+MODULE_LICENSE("GPL");
+
+int init_module(void)
+{
+ return retz3fb_init();
+}
+#endif
+
+
+/*
+ * Text console acceleration
+ */
+
+#ifdef FBCON_HAS_CFB8
+static void retz3_8_bmove(struct display *p, int sy, int sx,
+ int dy, int dx, int height, int width)
+{
+ int fontwidth = fontwidth(p);
+
+ sx *= fontwidth;
+ dx *= fontwidth;
+ width *= fontwidth;
+
+ retz3_bitblt(p,
+ (unsigned short)sx,
+ (unsigned short)(sy*fontheight(p)),
+ (unsigned short)dx,
+ (unsigned short)(dy*fontheight(p)),
+ (unsigned short)width,
+ (unsigned short)(height*fontheight(p)),
+ Z3BLTcopy,
+ 0xffff);
+}
+
+static void retz3_8_clear(struct vc_data *conp, struct display *p,
+ int sy, int sx, int height, int width)
+{
+ unsigned short col;
+ int fontwidth = fontwidth(p);
+
+ sx *= fontwidth;
+ width *= fontwidth;
+
+ col = attr_bgcol_ec(p, conp);
+ col &= 0xff;
+ col |= (col << 8);
+
+ retz3_bitblt(p,
+ (unsigned short)sx,
+ (unsigned short)(sy*fontheight(p)),
+ (unsigned short)sx,
+ (unsigned short)(sy*fontheight(p)),
+ (unsigned short)width,
+ (unsigned short)(height*fontheight(p)),
+ Z3BLTset,
+ col);
+}
+
+
+static void retz3_putc(struct vc_data *conp, struct display *p, int c,
+ int yy, int xx)
+{
+ retz3_busy(p);
+ fbcon_cfb8_putc(conp, p, c, yy, xx);
+}
+
+
+static void retz3_putcs(struct vc_data *conp, struct display *p,
+ const unsigned short *s, int count,
+ int yy, int xx)
+{
+ retz3_busy(p);
+ fbcon_cfb8_putcs(conp, p, s, count, yy, xx);
+}
+
+
+static void retz3_revc(struct display *p, int xx, int yy)
+{
+ retz3_busy(p);
+ fbcon_cfb8_revc(p, xx, yy);
+}
+
+
+static void retz3_clear_margins(struct vc_data* conp, struct display* p,
+ int bottom_only)
+{
+ retz3_busy(p);
+ fbcon_cfb8_clear_margins(conp, p, bottom_only);
+}
+
+
+static struct display_switch fbcon_retz3_8 = {
+ .setup = fbcon_cfb8_setup,
+ .bmove = retz3_8_bmove,
+ .clear = retz3_8_clear,
+ .putc = retz3_putc,
+ .putcs = retz3_putcs,
+ .revc = retz3_revc,
+ .clear_margins = retz3_clear_margins,
+ .fontwidthmask = FONTWIDTH(8)
+};
+#endif