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path: root/drivers/video/cyberfb.c
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Diffstat (limited to 'drivers/video/cyberfb.c')
-rw-r--r--drivers/video/cyberfb.c2296
1 files changed, 2296 insertions, 0 deletions
diff --git a/drivers/video/cyberfb.c b/drivers/video/cyberfb.c
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+++ b/drivers/video/cyberfb.c
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+/*
+* linux/drivers/video/cyberfb.c -- CyberVision64 frame buffer device
+* $Id: cyberfb.c,v 1.6 1998/09/11 04:54:58 abair Exp $
+*
+* Copyright (C) 1998 Alan Bair
+*
+* This file is based on two CyberVision64 frame buffer device drivers
+*
+* The second CyberVision64 frame buffer device (cvision.c cvision_core.c):
+*
+* Copyright (c) 1997 Antonio Santos
+*
+* Released as a patch to 2.1.35, but never included in the source tree.
+* This is based on work from the NetBSD CyberVision64 frame buffer driver
+* and support files (grf_cv.c, grf_cvreg.h, ite_cv.c):
+* Permission to use the source of this driver was obtained from the
+* author Michael Teske by Alan Bair.
+*
+* Copyright (c) 1995 Michael Teske
+*
+* The first CyberVision64 frame buffer device (cyberfb.c):
+*
+* Copyright (C) 1996 Martin Apel
+* Geert Uytterhoeven
+*
+* Which is based on the Amiga frame buffer device (amifb.c):
+*
+* Copyright (C) 1995 Geert Uytterhoeven
+*
+*
+* History:
+* - 22 Dec 95: Original version by Martin Apel
+* - 05 Jan 96: Geert: integration into the current source tree
+* - 01 Aug 98: Alan: Merge in code from cvision.c and cvision_core.c
+* $Log: cyberfb.c,v $
+* Revision 1.6 1998/09/11 04:54:58 abair
+* Update for 2.1.120 change in include file location.
+* Clean up for public release.
+*
+* Revision 1.5 1998/09/03 04:27:13 abair
+* Move cv64_load_video_mode to cyber_set_video so a new video mode is install
+* with each change of the 'var' data.
+*
+* Revision 1.4 1998/09/01 00:31:17 abair
+* Put in a set of default 8,16,24 bpp modes and map cyber8,16 to them.
+* Update operations with 'par' to handle a more complete set of parameter
+* values for encode/decode process.
+*
+* Revision 1.3 1998/08/31 21:31:33 abair
+* Swap 800x490 for 640x480 video mode and more cleanup.
+* Abandon idea to resurrect "custom" mode setting via kernel opts,
+* instead work on making use of fbset program to do this.
+*
+* Revision 1.2 1998/08/31 06:17:08 abair
+* Make updates for changes in cyberfb.c released in 2.1.119
+* and do some cleanup of the code.
+*
+* Revision 1.1 1998/08/29 18:38:31 abair
+* Initial revision
+*
+* Revision 1.3 1998/08/17 06:21:53 abair
+* Remove more redundant code after merging in cvision_core.c
+* Set blanking by colormap to pale red to detect this vs trying to
+* use video blanking. More formating to Linux code style.
+*
+* Revision 1.2 1998/08/15 17:51:37 abair
+* Added cvision_core.c code from 2.1.35 patches.
+* Changed to compile correctly and switch to using initialization
+* code. Added debugging and dropping of duplicate code.
+*
+*
+*
+* 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/zorro.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <asm/uaccess.h>
+#include <asm/system.h>
+#include <asm/irq.h>
+#include <asm/pgtable.h>
+#include <asm/amigahw.h>
+#include <asm/io.h>
+
+#include "cyberfb.h"
+#include <video/fbcon.h>
+#include <video/fbcon-cfb8.h>
+#include <video/fbcon-cfb16.h>
+
+/*#define CYBERFBDEBUG*/
+#ifdef CYBERFBDEBUG
+#define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
+static void cv64_dump(void);
+#else
+#define DPRINTK(fmt, args...)
+#endif
+
+#define wb_64(regs,reg,dat) (*(((volatile unsigned char *)regs) + reg) = dat)
+#define rb_64(regs, reg) (*(((volatile unsigned char *)regs) + reg))
+
+#define ww_64(regs,reg,dat) (*((volatile unsigned short *)(regs + reg) = dat)
+
+struct cyberfb_par {
+ struct fb_var_screeninfo var;
+ __u32 type;
+ __u32 type_aux;
+ __u32 visual;
+ __u32 line_length;
+};
+
+static struct cyberfb_par current_par;
+
+static int current_par_valid = 0;
+
+static struct display disp;
+static struct fb_info fb_info;
+
+
+/*
+ * Frame Buffer Name
+ */
+
+static char cyberfb_name[16] = "Cybervision";
+
+
+/*
+ * CyberVision Graphics Board
+ */
+
+static unsigned char Cyber_colour_table [256][3];
+static unsigned long CyberSize;
+static volatile unsigned char *CyberBase;
+static volatile unsigned char *CyberMem;
+static volatile unsigned char *CyberRegs;
+static unsigned long CyberMem_phys;
+static unsigned long CyberRegs_phys;
+
+/*
+ * Predefined Video Modes
+ */
+
+static struct {
+ const char *name;
+ struct fb_var_screeninfo var;
+} cyberfb_predefined[] __initdata = {
+ { "640x480-8", { /* Default 8 BPP mode (cyber8) */
+ 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_ACCELF_TEXT, 39722, 40, 24, 32, 11, 96, 2,
+ FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED
+ }},
+ { "640x480-16", { /* Default 16 BPP mode (cyber16) */
+ 640, 480, 640, 480, 0, 0, 16, 0,
+ {11, 5, 0}, {5, 6, 0}, {0, 5, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCELF_TEXT, 39722, 40, 24, 32, 11, 96, 2,
+ FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED
+ }},
+ { "640x480-24", { /* Default 24 BPP mode */
+ 640, 480, 640, 480, 0, 0, 24, 0,
+ {16, 8, 0}, {8, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCELF_TEXT, 39722, 40, 24, 32, 11, 96, 2,
+ FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED
+ }},
+ { "800x490-8", { /* Cybervision 8 bpp */
+ /* NO Acceleration */
+ 800, 490, 800, 490, 0, 0, 8, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCEL_NONE, 33333, 80, 24, 23, 1, 56, 8,
+ FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED
+ }},
+/* I can't test these with my monitor, but I suspect they will
+ * be OK, since Antonio Santos indicated he had tested them in
+ * his system.
+ */
+ { "800x600-8", { /* Cybervision 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, 72, 2,
+ FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED
+ }},
+ { "1024x768-8", { /* Cybervision 8 bpp */
+ 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, 16667, 224, 72, 60, 12, 168, 4,
+ FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED
+ }},
+ { "1152x886-8", { /* Cybervision 8 bpp */
+ 1152, 886, 1152, 886, 0, 0, 8, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCELF_TEXT, 15873, 184, 40, 24, 1, 56, 16,
+ FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_NONINTERLACED
+ }},
+ { "1280x1024-8", { /* Cybervision 8 bpp */
+ 1280, 1024, 1280, 1024, 0, 0, 8, 0,
+ {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+ 0, 0, -1, -1, FB_ACCELF_TEXT, 16667, 256, 48, 50, 12, 72, 4,
+ FB_SYNC_COMP_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
+ FB_VMODE_INTERLACED
+ }}
+};
+
+#define NUM_TOTAL_MODES ARRAY_SIZE(cyberfb_predefined)
+
+static int Cyberfb_inverse = 0;
+
+/*
+ * Some default modes
+ */
+
+#define CYBER8_DEFMODE (0)
+#define CYBER16_DEFMODE (1)
+
+static struct fb_var_screeninfo cyberfb_default;
+static int cyberfb_usermode __initdata = 0;
+
+/*
+ * Interface used by the world
+ */
+
+int cyberfb_setup(char *options);
+
+static int cyberfb_get_fix(struct fb_fix_screeninfo *fix, int con,
+ struct fb_info *info);
+static int cyberfb_get_var(struct fb_var_screeninfo *var, int con,
+ struct fb_info *info);
+static int cyberfb_set_var(struct fb_var_screeninfo *var, int con,
+ struct fb_info *info);
+static int cyberfb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
+ struct fb_info *info);
+static int cyberfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info);
+static int cyberfb_blank(int blank, struct fb_info *info);
+
+/*
+ * Interface to the low level console driver
+ */
+
+int cyberfb_init(void);
+static int Cyberfb_switch(int con, struct fb_info *info);
+static int Cyberfb_updatevar(int con, struct fb_info *info);
+
+/*
+ * Text console acceleration
+ */
+
+#ifdef FBCON_HAS_CFB8
+static struct display_switch fbcon_cyber8;
+#endif
+
+/*
+ * Accelerated Functions used by the low level console driver
+ */
+
+static void Cyber_WaitQueue(u_short fifo);
+static void Cyber_WaitBlit(void);
+static void Cyber_BitBLT(u_short curx, u_short cury, u_short destx,
+ u_short desty, u_short width, u_short height,
+ u_short mode);
+static void Cyber_RectFill(u_short x, u_short y, u_short width, u_short height,
+ u_short mode, u_short color);
+#if 0
+static void Cyber_MoveCursor(u_short x, u_short y);
+#endif
+
+/*
+ * Hardware Specific Routines
+ */
+
+static int Cyber_init(void);
+static int Cyber_encode_fix(struct fb_fix_screeninfo *fix,
+ struct cyberfb_par *par);
+static int Cyber_decode_var(struct fb_var_screeninfo *var,
+ struct cyberfb_par *par);
+static int Cyber_encode_var(struct fb_var_screeninfo *var,
+ struct cyberfb_par *par);
+static int Cyber_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
+ u_int *transp, struct fb_info *info);
+
+/*
+ * Internal routines
+ */
+
+static void cyberfb_get_par(struct cyberfb_par *par);
+static void cyberfb_set_par(struct cyberfb_par *par);
+static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive);
+static void cyberfb_set_disp(int con, struct fb_info *info);
+static int get_video_mode(const char *name);
+
+/* For cvision_core.c */
+static unsigned short cv64_compute_clock(unsigned long);
+static int cv_has_4mb (volatile unsigned char *);
+static void cv64_board_init (void);
+static void cv64_load_video_mode (struct fb_var_screeninfo *);
+
+
+/* -------------------- Hardware specific routines ------------------------- */
+
+
+/*
+ * Initialization
+ *
+ * Set the default video mode for this chipset. If a video mode was
+ * specified on the command line, it will override the default mode.
+ */
+
+static int Cyber_init(void)
+{
+ volatile unsigned char *regs = CyberRegs;
+ volatile unsigned long *CursorBase;
+ int i;
+ DPRINTK("ENTER\n");
+
+/* Init local cmap as greyscale levels */
+ for (i = 0; i < 256; i++) {
+ Cyber_colour_table [i][0] = i;
+ Cyber_colour_table [i][1] = i;
+ Cyber_colour_table [i][2] = i;
+ }
+
+/* Initialize the board and determine fbmem size */
+ cv64_board_init();
+#ifdef CYBERFBDEBUG
+ DPRINTK("Register state after initing board\n");
+ cv64_dump();
+#endif
+/* Clear framebuffer memory */
+ DPRINTK("Clear framebuffer memory\n");
+ memset ((char *)CyberMem, 0, CyberSize);
+
+/* Disable hardware cursor */
+ DPRINTK("Disable HW cursor\n");
+ wb_64(regs, S3_CRTC_ADR, S3_REG_LOCK2);
+ wb_64(regs, S3_CRTC_DATA, 0xa0);
+ wb_64(regs, S3_CRTC_ADR, S3_HGC_MODE);
+ wb_64(regs, S3_CRTC_DATA, 0x00);
+ wb_64(regs, S3_CRTC_ADR, S3_HWGC_DX);
+ wb_64(regs, S3_CRTC_DATA, 0x00);
+ wb_64(regs, S3_CRTC_ADR, S3_HWGC_DY);
+ wb_64(regs, S3_CRTC_DATA, 0x00);
+
+/* Initialize hardware cursor */
+ DPRINTK("Init HW cursor\n");
+ CursorBase = (u_long *)((char *)(CyberMem) + CyberSize - 0x400);
+ for (i=0; i < 8; i++)
+ {
+ *(CursorBase +(i*4)) = 0xffffff00;
+ *(CursorBase+1+(i*4)) = 0xffff0000;
+ *(CursorBase+2+(i*4)) = 0xffff0000;
+ *(CursorBase+3+(i*4)) = 0xffff0000;
+ }
+ for (i=8; i < 64; i++)
+ {
+ *(CursorBase +(i*4)) = 0xffff0000;
+ *(CursorBase+1+(i*4)) = 0xffff0000;
+ *(CursorBase+2+(i*4)) = 0xffff0000;
+ *(CursorBase+3+(i*4)) = 0xffff0000;
+ }
+
+ cyberfb_setcolreg (255, 56<<8, 100<<8, 160<<8, 0, NULL /* unused */);
+ cyberfb_setcolreg (254, 0, 0, 0, 0, NULL /* unused */);
+
+ DPRINTK("EXIT\n");
+ return 0;
+}
+
+
+/*
+ * This function should fill in the `fix' structure based on the
+ * values in the `par' structure.
+ */
+
+static int Cyber_encode_fix(struct fb_fix_screeninfo *fix,
+ struct cyberfb_par *par)
+{
+ DPRINTK("ENTER\n");
+ memset(fix, 0, sizeof(struct fb_fix_screeninfo));
+ strcpy(fix->id, cyberfb_name);
+ fix->smem_start = CyberMem_phys;
+ fix->smem_len = CyberSize;
+ fix->mmio_start = CyberRegs_phys;
+ fix->mmio_len = 0x10000;
+
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->type_aux = 0;
+ if (par->var.bits_per_pixel == 15 || par->var.bits_per_pixel == 16 ||
+ par->var.bits_per_pixel == 24 || par->var.bits_per_pixel == 32) {
+ fix->visual = FB_VISUAL_DIRECTCOLOR;
+ } else {
+ fix->visual = FB_VISUAL_PSEUDOCOLOR;
+ }
+
+ fix->xpanstep = 0;
+ fix->ypanstep = 0;
+ fix->ywrapstep = 0;
+ fix->line_length = 0;
+ fix->accel = FB_ACCEL_S3_TRIO64;
+
+ DPRINTK("EXIT\n");
+ return(0);
+}
+
+
+/*
+* Fill the `par' structure based on the values in `var'.
+* TODO: Verify and adjust values, return -EINVAL if bad.
+*/
+
+static int Cyber_decode_var(struct fb_var_screeninfo *var,
+ struct cyberfb_par *par)
+{
+ DPRINTK("ENTER\n");
+ par->var.xres = var->xres;
+ par->var.yres = var->yres;
+ par->var.xres_virtual = var->xres_virtual;
+ par->var.yres_virtual = var->yres_virtual;
+ par->var.xoffset = var->xoffset;
+ par->var.yoffset = var->yoffset;
+ par->var.bits_per_pixel = var->bits_per_pixel;
+ par->var.grayscale = var->grayscale;
+ par->var.red = var->red;
+ par->var.green = var->green;
+ par->var.blue = var->blue;
+ par->var.transp = var->transp;
+ par->var.nonstd = var->nonstd;
+ par->var.activate = var->activate;
+ par->var.height = var->height;
+ par->var.width = var->width;
+ if (var->accel_flags & FB_ACCELF_TEXT) {
+ par->var.accel_flags = FB_ACCELF_TEXT;
+ } else {
+ par->var.accel_flags = 0;
+ }
+ par->var.pixclock = var->pixclock;
+ par->var.left_margin = var->left_margin;
+ par->var.right_margin = var->right_margin;
+ par->var.upper_margin = var->upper_margin;
+ par->var.lower_margin = var->lower_margin;
+ par->var.hsync_len = var->hsync_len;
+ par->var.vsync_len = var->vsync_len;
+ par->var.sync = var->sync;
+ par->var.vmode = var->vmode;
+ DPRINTK("EXIT\n");
+ return(0);
+}
+
+/*
+* Fill the `var' structure based on the values in `par' and maybe
+* other values read out of the hardware.
+*/
+
+static int Cyber_encode_var(struct fb_var_screeninfo *var,
+ struct cyberfb_par *par)
+{
+ DPRINTK("ENTER\n");
+ var->xres = par->var.xres;
+ var->yres = par->var.yres;
+ var->xres_virtual = par->var.xres_virtual;
+ var->yres_virtual = par->var.yres_virtual;
+ var->xoffset = par->var.xoffset;
+ var->yoffset = par->var.yoffset;
+
+ var->bits_per_pixel = par->var.bits_per_pixel;
+ var->grayscale = par->var.grayscale;
+
+ var->red = par->var.red;
+ var->green = par->var.green;
+ var->blue = par->var.blue;
+ var->transp = par->var.transp;
+
+ var->nonstd = par->var.nonstd;
+ var->activate = par->var.activate;
+
+ var->height = par->var.height;
+ var->width = par->var.width;
+
+ var->accel_flags = par->var.accel_flags;
+
+ var->pixclock = par->var.pixclock;
+ var->left_margin = par->var.left_margin;
+ var->right_margin = par->var.right_margin;
+ var->upper_margin = par->var.upper_margin;
+ var->lower_margin = par->var.lower_margin;
+ var->hsync_len = par->var.hsync_len;
+ var->vsync_len = par->var.vsync_len;
+ var->sync = par->var.sync;
+ var->vmode = par->var.vmode;
+
+ DPRINTK("EXIT\n");
+ return(0);
+}
+
+
+/*
+ * Set a single color register. Return != 0 for invalid regno.
+ */
+
+static int cyberfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info)
+{
+ volatile unsigned char *regs = CyberRegs;
+
+ /*DPRINTK("ENTER\n");*/
+ if (regno > 255) {
+ DPRINTK("EXIT - Register # > 255\n");
+ return (1);
+ }
+
+ wb_64(regs, 0x3c8, (unsigned char) regno);
+
+ red >>= 10;
+ green >>= 10;
+ blue >>= 10;
+
+ Cyber_colour_table [regno][0] = red;
+ Cyber_colour_table [regno][1] = green;
+ Cyber_colour_table [regno][2] = blue;
+
+ wb_64(regs, 0x3c9, red);
+ wb_64(regs, 0x3c9, green);
+ wb_64(regs, 0x3c9, blue);
+
+ /*DPRINTK("EXIT\n");*/
+ return (0);
+}
+
+
+/*
+* Read a single color register and split it into
+* colors/transparent. Return != 0 for invalid regno.
+*/
+
+static int Cyber_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
+ u_int *transp, struct fb_info *info)
+{
+ int t;
+
+ /*DPRINTK("ENTER\n");*/
+ if (regno > 255) {
+ DPRINTK("EXIT - Register # > 255\n");
+ return (1);
+ }
+ /* ARB This shifting & oring seems VERY strange */
+ t = Cyber_colour_table [regno][0];
+ *red = (t<<10) | (t<<4) | (t>>2);
+ t = Cyber_colour_table [regno][1];
+ *green = (t<<10) | (t<<4) | (t>>2);
+ t = Cyber_colour_table [regno][2];
+ *blue = (t<<10) | (t<<4) | (t>>2);
+ *transp = 0;
+ /*DPRINTK("EXIT\n");*/
+ return (0);
+}
+
+
+/*
+* (Un)Blank the screen
+* blank: 1 = zero fb cmap
+* 0 = restore fb cmap from local cmap
+*/
+static int cyberfb_blank(int blank, struct fb_info *info)
+{
+ volatile unsigned char *regs = CyberRegs;
+ int i;
+
+ DPRINTK("ENTER\n");
+#if 0
+/* Blank by turning gfx off */
+ gfx_on_off (1, regs);
+#else
+ if (blank) {
+ for (i = 0; i < 256; i++) {
+ wb_64(regs, 0x3c8, (unsigned char) i);
+ /* ARB Pale red to detect this blanking method */
+ wb_64(regs, 0x3c9, 48);
+ wb_64(regs, 0x3c9, 0);
+ wb_64(regs, 0x3c9, 0);
+ }
+ } else {
+ for (i = 0; i < 256; i++) {
+ wb_64(regs, 0x3c8, (unsigned char) i);
+ wb_64(regs, 0x3c9, Cyber_colour_table[i][0]);
+ wb_64(regs, 0x3c9, Cyber_colour_table[i][1]);
+ wb_64(regs, 0x3c9, Cyber_colour_table[i][2]);
+ }
+ }
+#endif
+ DPRINTK("EXIT\n");
+ return 0;
+}
+
+
+/**************************************************************
+ * We are waiting for "fifo" FIFO-slots empty
+ */
+static void Cyber_WaitQueue (u_short fifo)
+{
+ unsigned short status;
+
+ DPRINTK("ENTER\n");
+ do {
+ status = *((u_short volatile *)(CyberRegs + S3_GP_STAT));
+ } while (status & fifo);
+ DPRINTK("EXIT\n");
+}
+
+/**************************************************************
+ * We are waiting for Hardware (Graphics Engine) not busy
+ */
+static void Cyber_WaitBlit (void)
+{
+ unsigned short status;
+
+ DPRINTK("ENTER\n");
+ do {
+ status = *((u_short volatile *)(CyberRegs + S3_GP_STAT));
+ } while (status & S3_HDW_BUSY);
+ DPRINTK("EXIT\n");
+}
+
+/**************************************************************
+ * BitBLT - Through the Plane
+ */
+static void Cyber_BitBLT (u_short curx, u_short cury, u_short destx,
+ u_short desty, u_short width, u_short height,
+ u_short mode)
+{
+ volatile unsigned char *regs = CyberRegs;
+ u_short blitcmd = S3_BITBLT;
+
+ DPRINTK("ENTER\n");
+ /* Set drawing direction */
+ /* -Y, X maj, -X (default) */
+ if (curx > destx) {
+ blitcmd |= 0x0020; /* Drawing direction +X */
+ } else {
+ curx += (width - 1);
+ destx += (width - 1);
+ }
+
+ if (cury > desty) {
+ blitcmd |= 0x0080; /* Drawing direction +Y */
+ } else {
+ cury += (height - 1);
+ desty += (height - 1);
+ }
+
+ Cyber_WaitQueue (0x8000);
+
+ *((u_short volatile *)(regs + S3_PIXEL_CNTL)) = 0xa000;
+ *((u_short volatile *)(regs + S3_FRGD_MIX)) = (0x0060 | mode);
+
+ *((u_short volatile *)(regs + S3_CUR_X)) = curx;
+ *((u_short volatile *)(regs + S3_CUR_Y)) = cury;
+
+ *((u_short volatile *)(regs + S3_DESTX_DIASTP)) = destx;
+ *((u_short volatile *)(regs + S3_DESTY_AXSTP)) = desty;
+
+ *((u_short volatile *)(regs + S3_MIN_AXIS_PCNT)) = height - 1;
+ *((u_short volatile *)(regs + S3_MAJ_AXIS_PCNT)) = width - 1;
+
+ *((u_short volatile *)(regs + S3_CMD)) = blitcmd;
+ DPRINTK("EXIT\n");
+}
+
+/**************************************************************
+ * Rectangle Fill Solid
+ */
+static void Cyber_RectFill (u_short x, u_short y, u_short width,
+ u_short height, u_short mode, u_short color)
+{
+ volatile unsigned char *regs = CyberRegs;
+ u_short blitcmd = S3_FILLEDRECT;
+
+ DPRINTK("ENTER\n");
+ Cyber_WaitQueue (0x8000);
+
+ *((u_short volatile *)(regs + S3_PIXEL_CNTL)) = 0xa000;
+ *((u_short volatile *)(regs + S3_FRGD_MIX)) = (0x0020 | mode);
+
+ *((u_short volatile *)(regs + S3_MULT_MISC)) = 0xe000;
+ *((u_short volatile *)(regs + S3_FRGD_COLOR)) = color;
+
+ *((u_short volatile *)(regs + S3_CUR_X)) = x;
+ *((u_short volatile *)(regs + S3_CUR_Y)) = y;
+
+ *((u_short volatile *)(regs + S3_MIN_AXIS_PCNT)) = height - 1;
+ *((u_short volatile *)(regs + S3_MAJ_AXIS_PCNT)) = width - 1;
+
+ *((u_short volatile *)(regs + S3_CMD)) = blitcmd;
+ DPRINTK("EXIT\n");
+}
+
+
+#if 0
+/**************************************************************
+ * Move cursor to x, y
+ */
+static void Cyber_MoveCursor (u_short x, u_short y)
+{
+ volatile unsigned char *regs = CyberRegs;
+ DPRINTK("ENTER\n");
+ *(regs + S3_CRTC_ADR) = 0x39;
+ *(regs + S3_CRTC_DATA) = 0xa0;
+
+ *(regs + S3_CRTC_ADR) = S3_HWGC_ORGX_H;
+ *(regs + S3_CRTC_DATA) = (char)((x & 0x0700) >> 8);
+ *(regs + S3_CRTC_ADR) = S3_HWGC_ORGX_L;
+ *(regs + S3_CRTC_DATA) = (char)(x & 0x00ff);
+
+ *(regs + S3_CRTC_ADR) = S3_HWGC_ORGY_H;
+ *(regs + S3_CRTC_DATA) = (char)((y & 0x0700) >> 8);
+ *(regs + S3_CRTC_ADR) = S3_HWGC_ORGY_L;
+ *(regs + S3_CRTC_DATA) = (char)(y & 0x00ff);
+ DPRINTK("EXIT\n");
+}
+#endif
+
+
+/* -------------------- Generic routines ---------------------------------- */
+
+
+/*
+ * Fill the hardware's `par' structure.
+ */
+
+static void cyberfb_get_par(struct cyberfb_par *par)
+{
+ DPRINTK("ENTER\n");
+ if (current_par_valid) {
+ *par = current_par;
+ } else {
+ Cyber_decode_var(&cyberfb_default, par);
+ }
+ DPRINTK("EXIT\n");
+}
+
+
+static void cyberfb_set_par(struct cyberfb_par *par)
+{
+ DPRINTK("ENTER\n");
+ current_par = *par;
+ current_par_valid = 1;
+ DPRINTK("EXIT\n");
+}
+
+
+static void cyber_set_video(struct fb_var_screeninfo *var)
+{
+
+ /* Load the video mode defined by the 'var' data */
+ cv64_load_video_mode (var);
+#ifdef CYBERFBDEBUG
+ DPRINTK("Register state after loading video mode\n");
+ cv64_dump();
+#endif
+}
+
+
+static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive)
+{
+ int err, activate;
+ struct cyberfb_par par;
+
+ DPRINTK("ENTER\n");
+ if ((err = Cyber_decode_var(var, &par))) {
+ DPRINTK("EXIT - decode_var failed\n");
+ return(err);
+ }
+ activate = var->activate;
+ if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW && isactive)
+ cyberfb_set_par(&par);
+ Cyber_encode_var(var, &par);
+ var->activate = activate;
+
+ cyber_set_video(var);
+ DPRINTK("EXIT\n");
+ return 0;
+}
+
+/*
+ * Get the Fixed Part of the Display
+ */
+
+static int cyberfb_get_fix(struct fb_fix_screeninfo *fix, int con,
+ struct fb_info *info)
+{
+ struct cyberfb_par par;
+ int error = 0;
+
+ DPRINTK("ENTER\n");
+ if (con == -1) {
+ cyberfb_get_par(&par);
+ } else {
+ error = Cyber_decode_var(&fb_display[con].var, &par);
+ }
+ DPRINTK("EXIT\n");
+ return(error ? error : Cyber_encode_fix(fix, &par));
+}
+
+
+/*
+ * Get the User Defined Part of the Display
+ */
+
+static int cyberfb_get_var(struct fb_var_screeninfo *var, int con,
+ struct fb_info *info)
+{
+ struct cyberfb_par par;
+ int error = 0;
+
+ DPRINTK("ENTER\n");
+ if (con == -1) {
+ cyberfb_get_par(&par);
+ error = Cyber_encode_var(var, &par);
+ disp.var = *var; /* ++Andre: don't know if this is the right place */
+ } else {
+ *var = fb_display[con].var;
+ }
+
+ DPRINTK("EXIT\n");
+ return(error);
+}
+
+
+static void cyberfb_set_disp(int con, struct fb_info *info)
+{
+ struct fb_fix_screeninfo fix;
+ struct display *display;
+
+ DPRINTK("ENTER\n");
+ if (con >= 0)
+ display = &fb_display[con];
+ else
+ display = &disp; /* used during initialization */
+
+ cyberfb_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 = Cyberfb_inverse;
+ switch (display->var.bits_per_pixel) {
+#ifdef FBCON_HAS_CFB8
+ case 8:
+ if (display->var.accel_flags & FB_ACCELF_TEXT) {
+ display->dispsw = &fbcon_cyber8;
+#warning FIXME: We should reinit the graphics engine here
+ } else
+ display->dispsw = &fbcon_cfb8;
+ break;
+#endif
+#ifdef FBCON_HAS_CFB16
+ case 16:
+ display->dispsw = &fbcon_cfb16;
+ break;
+#endif
+ default:
+ display->dispsw = NULL;
+ break;
+ }
+ DPRINTK("EXIT\n");
+}
+
+
+/*
+ * Set the User Defined Part of the Display
+ */
+
+static int cyberfb_set_var(struct fb_var_screeninfo *var, int con,
+ struct fb_info *info)
+{
+ int err, oldxres, oldyres, oldvxres, oldvyres, oldbpp, oldaccel;
+
+ DPRINTK("ENTER\n");
+ if ((err = do_fb_set_var(var, con == info->currcon))) {
+ DPRINTK("EXIT - do_fb_set_var failed\n");
+ return(err);
+ }
+ if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
+ oldxres = fb_display[con].var.xres;
+ oldyres = fb_display[con].var.yres;
+ oldvxres = fb_display[con].var.xres_virtual;
+ oldvyres = fb_display[con].var.yres_virtual;
+ oldbpp = fb_display[con].var.bits_per_pixel;
+ oldaccel = fb_display[con].var.accel_flags;
+ fb_display[con].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) {
+ cyberfb_set_disp(con, info);
+ (*fb_info.changevar)(con);
+ fb_alloc_cmap(&fb_display[con].cmap, 0, 0);
+ do_install_cmap(con, info);
+ }
+ }
+ var->activate = 0;
+ DPRINTK("EXIT\n");
+ return(0);
+}
+
+
+/*
+ * Get the Colormap
+ */
+
+static int cyberfb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
+ struct fb_info *info)
+{
+ DPRINTK("ENTER\n");
+ if (con == info->currcon) { /* current console? */
+ DPRINTK("EXIT - console is current console\n");
+ return(fb_get_cmap(cmap, kspc, Cyber_getcolreg, info));
+ } else if (fb_display[con].cmap.len) { /* non default colormap? */
+ DPRINTK("Use console cmap\n");
+ fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
+ } else {
+ DPRINTK("Use default cmap\n");
+ fb_copy_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),
+ cmap, kspc ? 0 : 2);
+ }
+ DPRINTK("EXIT\n");
+ return(0);
+}
+
+static struct fb_ops cyberfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_get_fix = cyberfb_get_fix,
+ .fb_get_var = cyberfb_get_var,
+ .fb_set_var = cyberfb_set_var,
+ .fb_get_cmap = cyberfb_get_cmap,
+ .fb_set_cmap = gen_set_cmap,
+ .fb_setcolreg = cyberfb_setcolreg,
+ .fb_blank = cyberfb_blank,
+};
+
+int __init cyberfb_setup(char *options)
+{
+ char *this_opt;
+ DPRINTK("ENTER\n");
+
+ fb_info.fontname[0] = '\0';
+
+ if (!options || !*options) {
+ DPRINTK("EXIT - no options\n");
+ return 0;
+ }
+
+ while ((this_opt = strsep(&options, ",")) != NULL) {
+ if (!*this_opt)
+ continue;
+ if (!strcmp(this_opt, "inverse")) {
+ Cyberfb_inverse = 1;
+ fb_invert_cmaps();
+ } else if (!strncmp(this_opt, "font:", 5)) {
+ strcpy(fb_info.fontname, this_opt+5);
+ } else if (!strcmp (this_opt, "cyber8")) {
+ cyberfb_default = cyberfb_predefined[CYBER8_DEFMODE].var;
+ cyberfb_usermode = 1;
+ } else if (!strcmp (this_opt, "cyber16")) {
+ cyberfb_default = cyberfb_predefined[CYBER16_DEFMODE].var;
+ cyberfb_usermode = 1;
+ } else get_video_mode(this_opt);
+ }
+
+ DPRINTK("default mode: xres=%d, yres=%d, bpp=%d\n",
+ cyberfb_default.xres,
+ cyberfb_default.yres,
+ cyberfb_default.bits_per_pixel);
+ DPRINTK("EXIT\n");
+ return 0;
+}
+
+/*
+ * Initialization
+ */
+
+int __init cyberfb_init(void)
+{
+ unsigned long board_addr, board_size;
+ struct cyberfb_par par;
+ struct zorro_dev *z = NULL;
+ DPRINTK("ENTER\n");
+
+ while ((z = zorro_find_device(ZORRO_PROD_PHASE5_CYBERVISION64, z))) {
+ board_addr = z->resource.start;
+ board_size = z->resource.end-z->resource.start+1;
+ CyberMem_phys = board_addr + 0x01400000;
+ CyberRegs_phys = CyberMem_phys + 0x00c00000;
+ if (!request_mem_region(CyberRegs_phys, 0x10000, "S3 Trio64"))
+ continue;
+ if (!request_mem_region(CyberMem_phys, 0x400000, "RAM")) {
+ release_mem_region(CyberRegs_phys, 0x10000);
+ continue;
+ }
+ DPRINTK("board_addr=%08lx\n", board_addr);
+ DPRINTK("board_size=%08lx\n", board_size);
+
+ CyberBase = ioremap(board_addr, board_size);
+ CyberRegs = CyberBase + 0x02000000;
+ CyberMem = CyberBase + 0x01400000;
+ DPRINTK("CyberBase=%08lx CyberRegs=%08lx CyberMem=%08lx\n",
+ CyberBase, (long unsigned int)CyberRegs, CyberMem);
+
+#ifdef CYBERFBDEBUG
+ DPRINTK("Register state just after mapping memory\n");
+ cv64_dump();
+#endif
+
+ strcpy(fb_info.modename, cyberfb_name);
+ fb_info.changevar = NULL;
+ fb_info.fbops = &cyberfb_ops;
+ fb_info.screen_base = (unsigned char *)CyberMem;
+ fb_info.disp = &disp;
+ fb_info.currcon = -1;
+ fb_info.switch_con = &Cyberfb_switch;
+ fb_info.updatevar = &Cyberfb_updatevar;
+
+ Cyber_init();
+ /* ++Andre: set cyberfb default mode */
+ if (!cyberfb_usermode) {
+ cyberfb_default = cyberfb_predefined[CYBER8_DEFMODE].var;
+ DPRINTK("Use default cyber8 mode\n");
+ }
+ Cyber_decode_var(&cyberfb_default, &par);
+ Cyber_encode_var(&cyberfb_default, &par);
+
+ do_fb_set_var(&cyberfb_default, 1);
+ cyberfb_get_var(&fb_display[0].var, -1, &fb_info);
+ cyberfb_set_disp(-1, &fb_info);
+ do_install_cmap(0, &fb_info);
+
+ if (register_framebuffer(&fb_info) < 0) {
+ DPRINTK("EXIT - register_framebuffer failed\n");
+ release_mem_region(CyberMem_phys, 0x400000);
+ release_mem_region(CyberRegs_phys, 0x10000);
+ return -EINVAL;
+ }
+
+ printk("fb%d: %s frame buffer device, using %ldK of video memory\n",
+ fb_info.node, fb_info.modename, CyberSize>>10);
+
+ /* TODO: This driver cannot be unloaded yet */
+ DPRINTK("EXIT\n");
+ return 0;
+ }
+ return -ENXIO;
+}
+
+
+static int Cyberfb_switch(int con, struct fb_info *info)
+{
+ DPRINTK("ENTER\n");
+ /* Do we have to save the colormap? */
+ if (fb_display[info->currcon].cmap.len) {
+ fb_get_cmap(&fb_display[info->currcon].cmap, 1, Cyber_getcolreg,
+ info);
+ }
+
+ do_fb_set_var(&fb_display[con].var, 1);
+ info->currcon = con;
+ /* Install new colormap */
+ do_install_cmap(con, info);
+ DPRINTK("EXIT\n");
+ 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 Cyberfb_updatevar(int con, struct fb_info *info)
+{
+ DPRINTK("Enter - Exit\n");
+ return(0);
+}
+
+
+/*
+ * Get a Video Mode
+ */
+
+static int __init get_video_mode(const char *name)
+{
+ int i;
+
+ DPRINTK("ENTER\n");
+ for (i = 0; i < NUM_TOTAL_MODES; i++) {
+ if (!strcmp(name, cyberfb_predefined[i].name)) {
+ cyberfb_default = cyberfb_predefined[i].var;
+ cyberfb_usermode = 1;
+ DPRINTK("EXIT - Matched predefined mode\n");
+ return(i);
+ }
+ }
+ return(0);
+}
+
+
+/*
+ * Text console acceleration
+ */
+
+#ifdef FBCON_HAS_CFB8
+static void fbcon_cyber8_bmove(struct display *p, int sy, int sx, int dy,
+ int dx, int height, int width)
+{
+ DPRINTK("ENTER\n");
+ sx *= 8; dx *= 8; width *= 8;
+ Cyber_BitBLT((u_short)sx, (u_short)(sy*fontheight(p)), (u_short)dx,
+ (u_short)(dy*fontheight(p)), (u_short)width,
+ (u_short)(height*fontheight(p)), (u_short)S3_NEW);
+ DPRINTK("EXIT\n");
+}
+
+static void fbcon_cyber8_clear(struct vc_data *conp, struct display *p, int sy,
+ int sx, int height, int width)
+{
+ unsigned char bg;
+
+ DPRINTK("ENTER\n");
+ sx *= 8; width *= 8;
+ bg = attr_bgcol_ec(p,conp);
+ Cyber_RectFill((u_short)sx,
+ (u_short)(sy*fontheight(p)),
+ (u_short)width,
+ (u_short)(height*fontheight(p)),
+ (u_short)S3_NEW,
+ (u_short)bg);
+ DPRINTK("EXIT\n");
+}
+
+static void fbcon_cyber8_putc(struct vc_data *conp, struct display *p, int c,
+ int yy, int xx)
+{
+ DPRINTK("ENTER\n");
+ Cyber_WaitBlit();
+ fbcon_cfb8_putc(conp, p, c, yy, xx);
+ DPRINTK("EXIT\n");
+}
+
+static void fbcon_cyber8_putcs(struct vc_data *conp, struct display *p,
+ const unsigned short *s, int count,
+ int yy, int xx)
+{
+ DPRINTK("ENTER\n");
+ Cyber_WaitBlit();
+ fbcon_cfb8_putcs(conp, p, s, count, yy, xx);
+ DPRINTK("EXIT\n");
+}
+
+static void fbcon_cyber8_revc(struct display *p, int xx, int yy)
+{
+ DPRINTK("ENTER\n");
+ Cyber_WaitBlit();
+ fbcon_cfb8_revc(p, xx, yy);
+ DPRINTK("EXIT\n");
+}
+
+static struct display_switch fbcon_cyber8 = {
+ .setup = fbcon_cfb8_setup,
+ .bmove = fbcon_cyber8_bmove,
+ .clear = fbcon_cyber8_clear,
+ .putc = fbcon_cyber8_putc,
+ .putcs = fbcon_cyber8_putcs,
+ .revc = fbcon_cyber8_revc,
+ .clear_margins =fbcon_cfb8_clear_margins,
+ .fontwidthmask =FONTWIDTH(8)
+};
+#endif
+
+
+#ifdef MODULE
+MODULE_LICENSE("GPL");
+
+int init_module(void)
+{
+ return cyberfb_init();
+}
+#endif /* MODULE */
+
+/*
+ *
+ * Low level initialization routines for the CyberVision64 graphics card
+ *
+ * Most of the following code is from cvision_core.c
+ *
+ */
+
+#define MAXPIXELCLOCK 135000000 /* safety */
+
+#ifdef CV_AGGRESSIVE_TIMING
+long cv64_memclk = 55000000;
+#else
+long cv64_memclk = 50000000;
+#endif
+
+/*********************/
+
+static unsigned char clocks[]={
+ 0x13, 0x61, 0x6b, 0x6d, 0x51, 0x69, 0x54, 0x69,
+ 0x4f, 0x68, 0x6b, 0x6b, 0x18, 0x61, 0x7b, 0x6c,
+ 0x51, 0x67, 0x24, 0x62, 0x56, 0x67, 0x77, 0x6a,
+ 0x1d, 0x61, 0x53, 0x66, 0x6b, 0x68, 0x79, 0x69,
+ 0x7c, 0x69, 0x7f, 0x69, 0x22, 0x61, 0x54, 0x65,
+ 0x56, 0x65, 0x58, 0x65, 0x67, 0x66, 0x41, 0x63,
+ 0x27, 0x61, 0x13, 0x41, 0x37, 0x62, 0x6b, 0x4d,
+ 0x23, 0x43, 0x51, 0x49, 0x79, 0x66, 0x54, 0x49,
+ 0x7d, 0x66, 0x34, 0x56, 0x4f, 0x63, 0x1f, 0x42,
+ 0x6b, 0x4b, 0x7e, 0x4d, 0x18, 0x41, 0x2a, 0x43,
+ 0x7b, 0x4c, 0x74, 0x4b, 0x51, 0x47, 0x65, 0x49,
+ 0x24, 0x42, 0x68, 0x49, 0x56, 0x47, 0x75, 0x4a,
+ 0x77, 0x4a, 0x31, 0x43, 0x1d, 0x41, 0x71, 0x49,
+ 0x53, 0x46, 0x29, 0x42, 0x6b, 0x48, 0x1f, 0x41,
+ 0x79, 0x49, 0x6f, 0x48, 0x7c, 0x49, 0x38, 0x43,
+ 0x7f, 0x49, 0x5d, 0x46, 0x22, 0x41, 0x53, 0x45,
+ 0x54, 0x45, 0x55, 0x45, 0x56, 0x45, 0x57, 0x45,
+ 0x58, 0x45, 0x25, 0x41, 0x67, 0x46, 0x5b, 0x45,
+ 0x41, 0x43, 0x78, 0x47, 0x27, 0x41, 0x51, 0x44,
+ 0x13, 0x21, 0x7d, 0x47, 0x37, 0x42, 0x71, 0x46,
+ 0x6b, 0x2d, 0x14, 0x21, 0x23, 0x23, 0x7d, 0x2f,
+ 0x51, 0x29, 0x61, 0x2b, 0x79, 0x46, 0x1d, 0x22,
+ 0x54, 0x29, 0x45, 0x27, 0x7d, 0x46, 0x7f, 0x46,
+ 0x4f, 0x43, 0x2f, 0x41, 0x1f, 0x22, 0x6a, 0x2b,
+ 0x6b, 0x2b, 0x5b, 0x29, 0x7e, 0x2d, 0x65, 0x44,
+ 0x18, 0x21, 0x5e, 0x29, 0x2a, 0x23, 0x45, 0x26,
+ 0x7b, 0x2c, 0x19, 0x21, 0x74, 0x2b, 0x75, 0x2b,
+ 0x51, 0x27, 0x3f, 0x25, 0x65, 0x29, 0x40, 0x25,
+ 0x24, 0x22, 0x41, 0x25, 0x68, 0x29, 0x42, 0x25,
+ 0x56, 0x27, 0x7e, 0x2b, 0x75, 0x2a, 0x1c, 0x21,
+ 0x77, 0x2a, 0x4f, 0x26, 0x31, 0x23, 0x6f, 0x29,
+ 0x1d, 0x21, 0x32, 0x23, 0x71, 0x29, 0x72, 0x29,
+ 0x53, 0x26, 0x69, 0x28, 0x29, 0x22, 0x75, 0x29,
+ 0x6b, 0x28, 0x1f, 0x21, 0x1f, 0x21, 0x6d, 0x28,
+ 0x79, 0x29, 0x2b, 0x22, 0x6f, 0x28, 0x59, 0x26,
+ 0x7c, 0x29, 0x7d, 0x29, 0x38, 0x23, 0x21, 0x21,
+ 0x7f, 0x29, 0x39, 0x23, 0x5d, 0x26, 0x75, 0x28,
+ 0x22, 0x21, 0x77, 0x28, 0x53, 0x25, 0x6c, 0x27,
+ 0x54, 0x25, 0x61, 0x26, 0x55, 0x25, 0x30, 0x22,
+ 0x56, 0x25, 0x63, 0x26, 0x57, 0x25, 0x71, 0x27,
+ 0x58, 0x25, 0x7f, 0x28, 0x25, 0x21, 0x74, 0x27,
+ 0x67, 0x26, 0x40, 0x23, 0x5b, 0x25, 0x26, 0x21,
+ 0x41, 0x23, 0x34, 0x22, 0x78, 0x27, 0x6b, 0x26,
+ 0x27, 0x21, 0x35, 0x22, 0x51, 0x24, 0x7b, 0x27,
+ 0x13, 0x1, 0x13, 0x1, 0x7d, 0x27, 0x4c, 0x9,
+ 0x37, 0x22, 0x5b, 0xb, 0x71, 0x26, 0x5c, 0xb,
+ 0x6b, 0xd, 0x47, 0x23, 0x14, 0x1, 0x4f, 0x9,
+ 0x23, 0x3, 0x75, 0x26, 0x7d, 0xf, 0x1c, 0x2,
+ 0x51, 0x9, 0x59, 0x24, 0x61, 0xb, 0x69, 0x25,
+ 0x79, 0x26, 0x34, 0x5, 0x1d, 0x2, 0x6b, 0x25,
+ 0x54, 0x9, 0x35, 0x5, 0x45, 0x7, 0x6d, 0x25,
+ 0x7d, 0x26, 0x16, 0x1, 0x7f, 0x26, 0x77, 0xd,
+ 0x4f, 0x23, 0x78, 0xd, 0x2f, 0x21, 0x27, 0x3,
+ 0x1f, 0x2, 0x59, 0x9, 0x6a, 0xb, 0x73, 0x25,
+ 0x6b, 0xb, 0x63, 0x24, 0x5b, 0x9, 0x20, 0x2,
+ 0x7e, 0xd, 0x4b, 0x7, 0x65, 0x24, 0x43, 0x22,
+ 0x18, 0x1, 0x6f, 0xb, 0x5e, 0x9, 0x70, 0xb,
+ 0x2a, 0x3, 0x33, 0x4, 0x45, 0x6, 0x60, 0x9,
+ 0x7b, 0xc, 0x19, 0x1, 0x19, 0x1, 0x7d, 0xc,
+ 0x74, 0xb, 0x50, 0x7, 0x75, 0xb, 0x63, 0x9,
+ 0x51, 0x7, 0x23, 0x2, 0x3f, 0x5, 0x1a, 0x1,
+ 0x65, 0x9, 0x2d, 0x3, 0x40, 0x5, 0x0, 0x0,
+};
+
+/* Console colors */
+unsigned char cvconscolors[16][3] = { /* background, foreground, hilite */
+ /* R G B */
+ {0x30, 0x30, 0x30},
+ {0x00, 0x00, 0x00},
+ {0x80, 0x00, 0x00},
+ {0x00, 0x80, 0x00},
+ {0x00, 0x00, 0x80},
+ {0x80, 0x80, 0x00},
+ {0x00, 0x80, 0x80},
+ {0x80, 0x00, 0x80},
+ {0xff, 0xff, 0xff},
+ {0x40, 0x40, 0x40},
+ {0xff, 0x00, 0x00},
+ {0x00, 0xff, 0x00},
+ {0x00, 0x00, 0xff},
+ {0xff, 0xff, 0x00},
+ {0x00, 0xff, 0xff},
+ {0x00, 0x00, 0xff}
+};
+
+/* -------------------- Hardware specific routines ------------------------- */
+
+/* Read Attribute Controller Register=idx */
+inline unsigned char RAttr (volatile unsigned char *regs, short idx)
+{
+ wb_64 (regs, ACT_ADDRESS_W, idx);
+ mb();
+ udelay(100);
+ return (rb_64(regs, ACT_ADDRESS_R));
+}
+
+/* Read Sequencer Register=idx */
+inline unsigned char RSeq (volatile unsigned char *regs, short idx)
+{
+ wb_64 (regs, SEQ_ADDRESS, idx);
+ mb();
+ return (rb_64(regs, SEQ_ADDRESS_R));
+}
+
+/* Read CRT Controller Register=idx */
+inline unsigned char RCrt (volatile unsigned char *regs, short idx)
+{
+ wb_64 (regs, CRT_ADDRESS, idx);
+ mb();
+ return (rb_64(regs, CRT_ADDRESS_R));
+}
+
+/* Read Graphics Controller Register=idx */
+inline unsigned char RGfx (volatile unsigned char *regs, short idx)
+{
+ wb_64 (regs, GCT_ADDRESS, idx);
+ mb();
+ return (rb_64(regs, GCT_ADDRESS_R));
+}
+
+/*
+ * Special wakeup/passthrough registers on graphics boards
+ */
+
+inline void cv64_write_port (unsigned short bits,
+ volatile unsigned char *base)
+{
+ volatile unsigned char *addr;
+ static unsigned char cvportbits = 0; /* Mirror port bits here */
+ DPRINTK("ENTER\n");
+
+ addr = base + 0x40001;
+ if (bits & 0x8000) {
+ cvportbits |= bits & 0xff; /* Set bits */
+ DPRINTK("Set bits: %04x\n", bits);
+ } else {
+ bits = bits & 0xff;
+ bits = (~bits) & 0xff;
+ cvportbits &= bits; /* Clear bits */
+ DPRINTK("Clear bits: %04x\n", bits);
+ }
+
+ *addr = cvportbits;
+ DPRINTK("EXIT\n");
+}
+
+/*
+ * Monitor switch on CyberVision board
+ *
+ * toggle:
+ * 0 = CyberVision Signal
+ * 1 = Amiga Signal
+ * board = board addr
+ *
+ */
+inline void cvscreen (int toggle, volatile unsigned char *board)
+{
+ DPRINTK("ENTER\n");
+ if (toggle == 1) {
+ DPRINTK("Show Amiga video\n");
+ cv64_write_port (0x10, board);
+ } else {
+ DPRINTK("Show CyberVision video\n");
+ cv64_write_port (0x8010, board);
+ }
+ DPRINTK("EXIT\n");
+}
+
+/* Control screen display */
+/* toggle: 0 = on, 1 = off */
+/* board = registerbase */
+inline void gfx_on_off(int toggle, volatile unsigned char *regs)
+{
+ int r;
+ DPRINTK("ENTER\n");
+
+ toggle &= 0x1;
+ toggle = toggle << 5;
+ DPRINTK("Turn display %s\n", (toggle ? "off" : "on"));
+
+ r = (int) RSeq(regs, SEQ_ID_CLOCKING_MODE);
+ r &= 0xdf; /* Set bit 5 to 0 */
+
+ WSeq (regs, SEQ_ID_CLOCKING_MODE, r | toggle);
+ DPRINTK("EXIT\n");
+}
+
+/*
+ * Computes M, N, and R values from
+ * given input frequency. It uses a table of
+ * precomputed values, to keep CPU time low.
+ *
+ * The return value consist of:
+ * lower byte: Bits 4-0: N Divider Value
+ * Bits 5-6: R Value for e.g. SR10 or SR12
+ * higher byte: Bits 0-6: M divider value for e.g. SR11 or SR13
+ */
+static unsigned short cv64_compute_clock(unsigned long freq)
+{
+ static unsigned char *mnr, *save; /* M, N + R vals */
+ unsigned long work_freq, r;
+ unsigned short erg;
+ long diff, d2;
+
+ DPRINTK("ENTER\n");
+ if (freq < 12500000 || freq > MAXPIXELCLOCK) {
+ printk("CV64 driver: Illegal clock frequency %ld, using 25MHz\n",
+ freq);
+ freq = 25000000;
+ }
+ DPRINTK("Freq = %ld\n", freq);
+ mnr = clocks; /* there the vals are stored */
+ d2 = 0x7fffffff;
+
+ while (*mnr) { /* mnr vals are 0-terminated */
+ work_freq = (0x37EE * (mnr[0] + 2)) / ((mnr[1] & 0x1F) + 2);
+
+ r = (mnr[1] >> 5) & 0x03;
+ if (r != 0) {
+ work_freq = work_freq >> r; /* r is the freq divider */
+ }
+
+ work_freq *= 0x3E8; /* 2nd part of OSC */
+
+ diff = abs(freq - work_freq);
+
+ if (d2 >= diff) {
+ d2 = diff;
+ /* In save are the vals for minimal diff */
+ save = mnr;
+ }
+ mnr += 2;
+ }
+ erg = *((unsigned short *)save);
+
+ DPRINTK("EXIT\n");
+ return (erg);
+}
+
+static int cv_has_4mb (volatile unsigned char *fb)
+{
+ volatile unsigned long *tr, *tw;
+ DPRINTK("ENTER\n");
+
+ /* write patterns in memory and test if they can be read */
+ tw = (volatile unsigned long *) fb;
+ tr = (volatile unsigned long *) (fb + 0x02000000);
+
+ *tw = 0x87654321;
+
+ if (*tr != 0x87654321) {
+ DPRINTK("EXIT - <4MB\n");
+ return (0);
+ }
+
+ /* upper memory region */
+ tw = (volatile unsigned long *) (fb + 0x00200000);
+ tr = (volatile unsigned long *) (fb + 0x02200000);
+
+ *tw = 0x87654321;
+
+ if (*tr != 0x87654321) {
+ DPRINTK("EXIT - <4MB\n");
+ return (0);
+ }
+
+ *tw = 0xAAAAAAAA;
+
+ if (*tr != 0xAAAAAAAA) {
+ DPRINTK("EXIT - <4MB\n");
+ return (0);
+ }
+
+ *tw = 0x55555555;
+
+ if (*tr != 0x55555555) {
+ DPRINTK("EXIT - <4MB\n");
+ return (0);
+ }
+
+ DPRINTK("EXIT\n");
+ return (1);
+}
+
+static void cv64_board_init (void)
+{
+ volatile unsigned char *regs = CyberRegs;
+ int i;
+ unsigned int clockpar;
+ unsigned char test;
+
+ DPRINTK("ENTER\n");
+
+ /*
+ * Special CyberVision 64 board operations
+ */
+ /* Reset board */
+ for (i = 0; i < 6; i++) {
+ cv64_write_port (0xff, CyberBase);
+ }
+ /* Return to operational mode */
+ cv64_write_port (0x8004, CyberBase);
+
+ /*
+ * Generic (?) S3 chip wakeup
+ */
+ /* Disable I/O & memory decoders, video in setup mode */
+ wb_64 (regs, SREG_VIDEO_SUBS_ENABLE, 0x10);
+ /* Video responds to cmds, addrs & data */
+ wb_64 (regs, SREG_OPTION_SELECT, 0x1);
+ /* Enable I/O & memory decoders, video in operational mode */
+ wb_64 (regs, SREG_VIDEO_SUBS_ENABLE, 0x8);
+ /* VGA color emulation, enable cpu access to display mem */
+ wb_64 (regs, GREG_MISC_OUTPUT_W, 0x03);
+ /* Unlock S3 VGA regs */
+ WCrt (regs, CRT_ID_REGISTER_LOCK_1, 0x48);
+ /* Unlock system control & extension registers */
+ WCrt (regs, CRT_ID_REGISTER_LOCK_2, 0xA5);
+/* GRF - Enable interrupts */
+ /* Enable enhanced regs access, Ready cntl 0 wait states */
+ test = RCrt (regs, CRT_ID_SYSTEM_CONFIG);
+ test = test | 0x01; /* enable enhanced register access */
+ test = test & 0xEF; /* clear bit 4, 0 wait state */
+ WCrt (regs, CRT_ID_SYSTEM_CONFIG, test);
+ /*
+ * bit 0=1: Enable enhaced mode functions
+ * bit 2=0: Enhanced mode 8+ bits/pixel
+ * bit 4=1: Enable linear addressing
+ * bit 5=1: Enable MMIO
+ */
+ wb_64 (regs, ECR_ADV_FUNC_CNTL, 0x31);
+ /*
+ * bit 0=1: Color emulation
+ * bit 1=1: Enable CPU access to display memory
+ * bit 5=1: Select high 64K memory page
+ */
+/* GRF - 0xE3 */
+ wb_64 (regs, GREG_MISC_OUTPUT_W, 0x23);
+
+ /* Cpu base addr */
+ WCrt (regs, CRT_ID_EXT_SYS_CNTL_4, 0x0);
+
+ /* Reset. This does nothing on Trio, but standard VGA practice */
+ /* WSeq (CyberRegs, SEQ_ID_RESET, 0x03); */
+ /* Character clocks 8 dots wide */
+ WSeq (regs, SEQ_ID_CLOCKING_MODE, 0x01);
+ /* Enable cpu write to all color planes */
+ WSeq (regs, SEQ_ID_MAP_MASK, 0x0F);
+ /* Font table in 1st 8k of plane 2, font A=B disables swtich */
+ WSeq (regs, SEQ_ID_CHAR_MAP_SELECT, 0x0);
+ /* Allow mem access to 256kb */
+ WSeq (regs, SEQ_ID_MEMORY_MODE, 0x2);
+ /* Unlock S3 extensions to VGA Sequencer regs */
+ WSeq (regs, SEQ_ID_UNLOCK_EXT, 0x6);
+
+ /* Enable 4MB fast page mode */
+ test = RSeq (regs, SEQ_ID_BUS_REQ_CNTL);
+ test = test | 1 << 6;
+ WSeq (regs, SEQ_ID_BUS_REQ_CNTL, test);
+
+ /* Faster LUT write: 1 DCLK LUT write cycle, RAMDAC clk doubled */
+ WSeq (regs, SEQ_ID_RAMDAC_CNTL, 0xC0);
+
+ /* Clear immediate clock load bit */
+ test = RSeq (regs, SEQ_ID_CLKSYN_CNTL_2);
+ test = test & 0xDF;
+ /* If > 55MHz, enable 2 cycle memory write */
+ if (cv64_memclk >= 55000000) {
+ test |= 0x80;
+ }
+ WSeq (regs, SEQ_ID_CLKSYN_CNTL_2, test);
+
+ /* Set MCLK value */
+ clockpar = cv64_compute_clock (cv64_memclk);
+ test = (clockpar & 0xFF00) >> 8;
+ WSeq (regs, SEQ_ID_MCLK_HI, test);
+ test = clockpar & 0xFF;
+ WSeq (regs, SEQ_ID_MCLK_LO, test);
+
+ /* Chip rev specific: Not in my Trio manual!!! */
+ if (RCrt (regs, CRT_ID_REVISION) == 0x10)
+ WSeq (regs, SEQ_ID_MORE_MAGIC, test);
+
+ /* We now load an 25 MHz, 31kHz, 640x480 standard VGA Mode. */
+
+ /* Set DCLK value */
+ WSeq (regs, SEQ_ID_DCLK_HI, 0x13);
+ WSeq (regs, SEQ_ID_DCLK_LO, 0x41);
+
+ /* Load DCLK (and MCLK?) immediately */
+ test = RSeq (regs, SEQ_ID_CLKSYN_CNTL_2);
+ test = test | 0x22;
+ WSeq (regs, SEQ_ID_CLKSYN_CNTL_2, test);
+
+ /* Enable loading of DCLK */
+ test = rb_64(regs, GREG_MISC_OUTPUT_R);
+ test = test | 0x0C;
+ wb_64 (regs, GREG_MISC_OUTPUT_W, test);
+
+ /* Turn off immediate xCLK load */
+ WSeq (regs, SEQ_ID_CLKSYN_CNTL_2, 0x2);
+
+ /* Horizontal character clock counts */
+ /* 8 LSB of 9 bits = total line - 5 */
+ WCrt (regs, CRT_ID_HOR_TOTAL, 0x5F);
+ /* Active display line */
+ WCrt (regs, CRT_ID_HOR_DISP_ENA_END, 0x4F);
+ /* Blank assertion start */
+ WCrt (regs, CRT_ID_START_HOR_BLANK, 0x50);
+ /* Blank assertion end */
+ WCrt (regs, CRT_ID_END_HOR_BLANK, 0x82);
+ /* HSYNC assertion start */
+ WCrt (regs, CRT_ID_START_HOR_RETR, 0x54);
+ /* HSYNC assertion end */
+ WCrt (regs, CRT_ID_END_HOR_RETR, 0x80);
+ WCrt (regs, CRT_ID_VER_TOTAL, 0xBF);
+ WCrt (regs, CRT_ID_OVERFLOW, 0x1F);
+ WCrt (regs, CRT_ID_PRESET_ROW_SCAN, 0x0);
+ WCrt (regs, CRT_ID_MAX_SCAN_LINE, 0x40);
+ WCrt (regs, CRT_ID_CURSOR_START, 0x00);
+ WCrt (regs, CRT_ID_CURSOR_END, 0x00);
+ WCrt (regs, CRT_ID_START_ADDR_HIGH, 0x00);
+ WCrt (regs, CRT_ID_START_ADDR_LOW, 0x00);
+ WCrt (regs, CRT_ID_CURSOR_LOC_HIGH, 0x00);
+ WCrt (regs, CRT_ID_CURSOR_LOC_LOW, 0x00);
+ WCrt (regs, CRT_ID_START_VER_RETR, 0x9C);
+ WCrt (regs, CRT_ID_END_VER_RETR, 0x0E);
+ WCrt (regs, CRT_ID_VER_DISP_ENA_END, 0x8F);
+ WCrt (regs, CRT_ID_SCREEN_OFFSET, 0x50);
+ WCrt (regs, CRT_ID_UNDERLINE_LOC, 0x00);
+ WCrt (regs, CRT_ID_START_VER_BLANK, 0x96);
+ WCrt (regs, CRT_ID_END_VER_BLANK, 0xB9);
+ WCrt (regs, CRT_ID_MODE_CONTROL, 0xE3);
+ WCrt (regs, CRT_ID_LINE_COMPARE, 0xFF);
+ WCrt (regs, CRT_ID_BACKWAD_COMP_3, 0x10); /* FIFO enabled */
+ WCrt (regs, CRT_ID_MISC_1, 0x35);
+ WCrt (regs, CRT_ID_DISPLAY_FIFO, 0x5A);
+ WCrt (regs, CRT_ID_EXT_MEM_CNTL_2, 0x70);
+ WCrt (regs, CRT_ID_LAW_POS_LO, 0x40);
+ WCrt (regs, CRT_ID_EXT_MEM_CNTL_3, 0xFF);
+
+ WGfx (regs, GCT_ID_SET_RESET, 0x0);
+ WGfx (regs, GCT_ID_ENABLE_SET_RESET, 0x0);
+ WGfx (regs, GCT_ID_COLOR_COMPARE, 0x0);
+ WGfx (regs, GCT_ID_DATA_ROTATE, 0x0);
+ WGfx (regs, GCT_ID_READ_MAP_SELECT, 0x0);
+ WGfx (regs, GCT_ID_GRAPHICS_MODE, 0x40);
+ WGfx (regs, GCT_ID_MISC, 0x01);
+ WGfx (regs, GCT_ID_COLOR_XCARE, 0x0F);
+ WGfx (regs, GCT_ID_BITMASK, 0xFF);
+
+ /* Colors for text mode */
+ for (i = 0; i < 0xf; i++)
+ WAttr (regs, i, i);
+
+ WAttr (regs, ACT_ID_ATTR_MODE_CNTL, 0x41);
+ WAttr (regs, ACT_ID_OVERSCAN_COLOR, 0x01);
+ WAttr (regs, ACT_ID_COLOR_PLANE_ENA, 0x0F);
+ WAttr (regs, ACT_ID_HOR_PEL_PANNING, 0x0);
+ WAttr (regs, ACT_ID_COLOR_SELECT, 0x0);
+
+ wb_64 (regs, VDAC_MASK, 0xFF);
+
+ *((unsigned long *) (regs + ECR_FRGD_COLOR)) = 0xFF;
+ *((unsigned long *) (regs + ECR_BKGD_COLOR)) = 0;
+
+ /* Colors initially set to grayscale */
+
+ wb_64 (regs, VDAC_ADDRESS_W, 0);
+ for (i = 255; i >= 0; i--) {
+ wb_64(regs, VDAC_DATA, i);
+ wb_64(regs, VDAC_DATA, i);
+ wb_64(regs, VDAC_DATA, i);
+ }
+
+ /* GFx hardware cursor off */
+ WCrt (regs, CRT_ID_HWGC_MODE, 0x00);
+
+ /* Set first to 4MB, so test will work */
+ WCrt (regs, CRT_ID_LAW_CNTL, 0x13);
+ /* Find "correct" size of fbmem of Z3 board */
+ if (cv_has_4mb (CyberMem)) {
+ CyberSize = 1024 * 1024 * 4;
+ WCrt (regs, CRT_ID_LAW_CNTL, 0x13);
+ DPRINTK("4MB board\n");
+ } else {
+ CyberSize = 1024 * 1024 * 2;
+ WCrt (regs, CRT_ID_LAW_CNTL, 0x12);
+ DPRINTK("2MB board\n");
+ }
+
+ /* Initialize graphics engine */
+ Cyber_WaitBlit();
+ vgaw16 (regs, ECR_FRGD_MIX, 0x27);
+ vgaw16 (regs, ECR_BKGD_MIX, 0x07);
+ vgaw16 (regs, ECR_READ_REG_DATA, 0x1000);
+ udelay(200);
+ vgaw16 (regs, ECR_READ_REG_DATA, 0x2000);
+ Cyber_WaitBlit();
+ vgaw16 (regs, ECR_READ_REG_DATA, 0x3FFF);
+ Cyber_WaitBlit();
+ udelay(200);
+ vgaw16 (regs, ECR_READ_REG_DATA, 0x4FFF);
+ Cyber_WaitBlit();
+ vgaw16 (regs, ECR_BITPLANE_WRITE_MASK, ~0);
+ Cyber_WaitBlit();
+ vgaw16 (regs, ECR_READ_REG_DATA, 0xE000);
+ vgaw16 (regs, ECR_CURRENT_Y_POS2, 0x00);
+ vgaw16 (regs, ECR_CURRENT_X_POS2, 0x00);
+ vgaw16 (regs, ECR_READ_REG_DATA, 0xA000);
+ vgaw16 (regs, ECR_DEST_Y__AX_STEP, 0x00);
+ vgaw16 (regs, ECR_DEST_Y2__AX_STEP2, 0x00);
+ vgaw16 (regs, ECR_DEST_X__DIA_STEP, 0x00);
+ vgaw16 (regs, ECR_DEST_X2__DIA_STEP2, 0x00);
+ vgaw16 (regs, ECR_SHORT_STROKE, 0x00);
+ vgaw16 (regs, ECR_DRAW_CMD, 0x01);
+
+ Cyber_WaitBlit();
+
+ vgaw16 (regs, ECR_READ_REG_DATA, 0x4FFF);
+ vgaw16 (regs, ECR_BKGD_COLOR, 0x01);
+ vgaw16 (regs, ECR_FRGD_COLOR, 0x00);
+
+
+ /* Enable video display (set bit 5) */
+/* ARB - Would also seem to write to AR13.
+ * May want to use parts of WAttr to set JUST bit 5
+ */
+ WAttr (regs, 0x33, 0);
+
+/* GRF - function code ended here */
+
+ /* Turn gfx on again */
+ gfx_on_off (0, regs);
+
+ /* Pass-through */
+ cvscreen (0, CyberBase);
+
+ DPRINTK("EXIT\n");
+}
+
+static void cv64_load_video_mode (struct fb_var_screeninfo *video_mode)
+{
+ volatile unsigned char *regs = CyberRegs;
+ int fx, fy;
+ unsigned short mnr;
+ unsigned short HT, HDE, HBS, HBE, HSS, HSE, VDE, VBS, VBE, VSS, VSE, VT;
+ char LACE, DBLSCAN, TEXT, CONSOLE;
+ int cr50, sr15, sr18, clock_mode, test;
+ int m, n;
+ int tfillm, temptym;
+ int hmul;
+
+ /* ---------------- */
+ int xres, hfront, hsync, hback;
+ int yres, vfront, vsync, vback;
+ int bpp;
+#if 0
+ float freq_f;
+#endif
+ long freq;
+ /* ---------------- */
+
+ DPRINTK("ENTER\n");
+ TEXT = 0; /* if depth == 4 */
+ CONSOLE = 0; /* mode num == 255 (console) */
+ fx = fy = 8; /* force 8x8 font */
+
+/* GRF - Disable interrupts */
+
+ gfx_on_off (1, regs);
+
+ switch (video_mode->bits_per_pixel) {
+ case 15:
+ case 16:
+ hmul = 2;
+ break;
+
+ default:
+ hmul = 1;
+ break;
+ }
+
+ bpp = video_mode->bits_per_pixel;
+ xres = video_mode->xres;
+ hfront = video_mode->right_margin;
+ hsync = video_mode->hsync_len;
+ hback = video_mode->left_margin;
+
+ LACE = 0;
+ DBLSCAN = 0;
+
+ if (video_mode->vmode & FB_VMODE_DOUBLE) {
+ yres = video_mode->yres * 2;
+ vfront = video_mode->lower_margin * 2;
+ vsync = video_mode->vsync_len * 2;
+ vback = video_mode->upper_margin * 2;
+ DBLSCAN = 1;
+ } else if (video_mode->vmode & FB_VMODE_INTERLACED) {
+ yres = (video_mode->yres + 1) / 2;
+ vfront = (video_mode->lower_margin + 1) / 2;
+ vsync = (video_mode->vsync_len + 1) / 2;
+ vback = (video_mode->upper_margin + 1) / 2;
+ LACE = 1;
+ } else {
+ yres = video_mode->yres;
+ vfront = video_mode->lower_margin;
+ vsync = video_mode->vsync_len;
+ vback = video_mode->upper_margin;
+ }
+
+ /* ARB Dropping custom setup method from cvision.c */
+#if 0
+ if (cvision_custom_mode) {
+ HBS = hbs / 8 * hmul;
+ HBE = hbe / 8 * hmul;
+ HSS = hss / 8 * hmul;
+ HSE = hse / 8 * hmul;
+ HT = ht / 8 * hmul - 5;
+
+ VBS = vbs - 1;
+ VSS = vss;
+ VSE = vse;
+ VBE = vbe;
+ VT = vt - 2;
+ } else {
+#else
+ {
+#endif
+ HBS = hmul * (xres / 8);
+ HBE = hmul * ((xres/8) + (hfront/8) + (hsync/8) + (hback/8) - 2);
+ HSS = hmul * ((xres/8) + (hfront/8) + 2);
+ HSE = hmul * ((xres/8) + (hfront/8) + (hsync/8) + 1);
+ HT = hmul * ((xres/8) + (hfront/8) + (hsync/8) + (hback/8));
+
+ VBS = yres;
+ VBE = yres + vfront + vsync + vback - 2;
+ VSS = yres + vfront - 1;
+ VSE = yres + vfront + vsync - 1;
+ VT = yres + vfront + vsync + vback - 2;
+ }
+
+ wb_64 (regs, ECR_ADV_FUNC_CNTL, (TEXT ? 0x00 : 0x31));
+
+ if (TEXT)
+ HDE = ((video_mode->xres + fx - 1) / fx) - 1;
+ else
+ HDE = (video_mode->xres + 3) * hmul / 8 - 1;
+
+ VDE = video_mode->yres - 1;
+
+ WCrt (regs, CRT_ID_HWGC_MODE, 0x00);
+ WCrt (regs, CRT_ID_EXT_DAC_CNTL, 0x00);
+
+ WSeq (regs, SEQ_ID_MEMORY_MODE,
+ (TEXT || (video_mode->bits_per_pixel == 1)) ? 0x06 : 0x0e);
+ WGfx (regs, GCT_ID_READ_MAP_SELECT, 0x00);
+ WSeq (regs, SEQ_ID_MAP_MASK,
+ (video_mode->bits_per_pixel == 1) ? 0x01 : 0xFF);
+ WSeq (regs, SEQ_ID_CHAR_MAP_SELECT, 0x00);
+
+ /* cv64_compute_clock accepts arguments in Hz */
+ /* pixclock is in ps ... convert to Hz */
+
+#if 0
+ freq_f = (1.0 / (float) video_mode->pixclock) * 1000000000;
+ freq = ((long) freq_f) * 1000;
+#else
+/* freq = (long) ((long long)1000000000000 / (long long) video_mode->pixclock);
+ */
+ freq = (1000000000 / video_mode->pixclock) * 1000;
+#endif
+
+ mnr = cv64_compute_clock (freq);
+ WSeq (regs, SEQ_ID_DCLK_HI, ((mnr & 0xFF00) >> 8));
+ WSeq (regs, SEQ_ID_DCLK_LO, (mnr & 0xFF));
+
+ /* Load display parameters into board */
+ WCrt (regs, CRT_ID_EXT_HOR_OVF,
+ ((HT & 0x100) ? 0x01 : 0x00) |
+ ((HDE & 0x100) ? 0x02 : 0x00) |
+ ((HBS & 0x100) ? 0x04 : 0x00) |
+ /* ((HBE & 0x40) ? 0x08 : 0x00) | */
+ ((HSS & 0x100) ? 0x10 : 0x00) |
+ /* ((HSE & 0x20) ? 0x20 : 0x00) | */
+ (((HT-5) & 0x100) ? 0x40 : 0x00)
+ );
+
+ WCrt (regs, CRT_ID_EXT_VER_OVF,
+ 0x40 |
+ ((VT & 0x400) ? 0x01 : 0x00) |
+ ((VDE & 0x400) ? 0x02 : 0x00) |
+ ((VBS & 0x400) ? 0x04 : 0x00) |
+ ((VSS & 0x400) ? 0x10 : 0x00)
+ );
+
+ WCrt (regs, CRT_ID_HOR_TOTAL, HT);
+ WCrt (regs, CRT_ID_DISPLAY_FIFO, HT - 5);
+ WCrt (regs, CRT_ID_HOR_DISP_ENA_END, ((HDE >= HBS) ? (HBS - 1) : HDE));
+ WCrt (regs, CRT_ID_START_HOR_BLANK, HBS);
+ WCrt (regs, CRT_ID_END_HOR_BLANK, ((HBE & 0x1F) | 0x80));
+ WCrt (regs, CRT_ID_START_HOR_RETR, HSS);
+ WCrt (regs, CRT_ID_END_HOR_RETR,
+ (HSE & 0x1F) |
+ ((HBE & 0x20) ? 0x80 : 0x00)
+ );
+ WCrt (regs, CRT_ID_VER_TOTAL, VT);
+ WCrt (regs, CRT_ID_OVERFLOW,
+ 0x10 |
+ ((VT & 0x100) ? 0x01 : 0x00) |
+ ((VDE & 0x100) ? 0x02 : 0x00) |
+ ((VSS & 0x100) ? 0x04 : 0x00) |
+ ((VBS & 0x100) ? 0x08 : 0x00) |
+ ((VT & 0x200) ? 0x20 : 0x00) |
+ ((VDE & 0x200) ? 0x40 : 0x00) |
+ ((VSS & 0x200) ? 0x80 : 0x00)
+ );
+ WCrt (regs, CRT_ID_MAX_SCAN_LINE,
+ 0x40 |
+ (DBLSCAN ? 0x80 : 0x00) |
+ ((VBS & 0x200) ? 0x20 : 0x00) |
+ (TEXT ? ((fy - 1) & 0x1F) : 0x00)
+ );
+
+ WCrt (regs, CRT_ID_MODE_CONTROL, 0xE3);
+
+ /* Text cursor */
+
+ if (TEXT) {
+#if 1
+ WCrt (regs, CRT_ID_CURSOR_START, (fy & 0x1f) - 2);
+ WCrt (regs, CRT_ID_CURSOR_END, (fy & 0x1F) - 1);
+#else
+ WCrt (regs, CRT_ID_CURSOR_START, 0x00);
+ WCrt (regs, CRT_ID_CURSOR_END, fy & 0x1F);
+#endif
+ WCrt (regs, CRT_ID_UNDERLINE_LOC, (fy - 1) & 0x1F);
+ WCrt (regs, CRT_ID_CURSOR_LOC_HIGH, 0x00);
+ WCrt (regs, CRT_ID_CURSOR_LOC_LOW, 0x00);
+ }
+
+ WCrt (regs, CRT_ID_START_ADDR_HIGH, 0x00);
+ WCrt (regs, CRT_ID_START_ADDR_LOW, 0x00);
+ WCrt (regs, CRT_ID_START_VER_RETR, VSS);
+ WCrt (regs, CRT_ID_END_VER_RETR, (VSE & 0x0F));
+ WCrt (regs, CRT_ID_VER_DISP_ENA_END, VDE);
+ WCrt (regs, CRT_ID_START_VER_BLANK, VBS);
+ WCrt (regs, CRT_ID_END_VER_BLANK, VBE);
+ WCrt (regs, CRT_ID_LINE_COMPARE, 0xFF);
+ WCrt (regs, CRT_ID_LACE_RETR_START, HT / 2);
+ WCrt (regs, CRT_ID_LACE_CONTROL, (LACE ? 0x20 : 0x00));
+ WGfx (regs, GCT_ID_GRAPHICS_MODE,
+ ((TEXT || (video_mode->bits_per_pixel == 1)) ? 0x00 : 0x40));
+ WGfx (regs, GCT_ID_MISC, (TEXT ? 0x04 : 0x01));
+ WSeq (regs, SEQ_ID_MEMORY_MODE,
+ ((TEXT || (video_mode->bits_per_pixel == 1)) ? 0x06 : 0x02));
+
+ wb_64 (regs, VDAC_MASK, 0xFF);
+
+ /* Blank border */
+ test = RCrt (regs, CRT_ID_BACKWAD_COMP_2);
+ WCrt (regs, CRT_ID_BACKWAD_COMP_2, (test | 0x20));
+
+ sr15 = RSeq (regs, SEQ_ID_CLKSYN_CNTL_2);
+ sr15 &= 0xEF;
+ sr18 = RSeq (regs, SEQ_ID_RAMDAC_CNTL);
+ sr18 &= 0x7F;
+ clock_mode = 0x00;
+ cr50 = 0x00;
+
+ test = RCrt (regs, CRT_ID_EXT_MISC_CNTL_2);
+ test &= 0xD;
+
+ /* Clear roxxler byte-swapping... */
+ cv64_write_port (0x0040, CyberBase);
+ cv64_write_port (0x0020, CyberBase);
+
+ switch (video_mode->bits_per_pixel) {
+ case 1:
+ case 4: /* text */
+ HDE = video_mode->xres / 16;
+ break;
+
+ case 8:
+ if (freq > 80000000) {
+ clock_mode = 0x10 | 0x02;
+ sr15 |= 0x10;
+ sr18 |= 0x80;
+ }
+ HDE = video_mode->xres / 8;
+ cr50 |= 0x00;
+ break;
+
+ case 15:
+ cv64_write_port (0x8020, CyberBase);
+ clock_mode = 0x30;
+ HDE = video_mode->xres / 4;
+ cr50 |= 0x10;
+ break;
+
+ case 16:
+ cv64_write_port (0x8020, CyberBase);
+ clock_mode = 0x50;
+ HDE = video_mode->xres / 4;
+ cr50 |= 0x10;
+ break;
+
+ case 24:
+ case 32:
+ cv64_write_port (0x8040, CyberBase);
+ clock_mode = 0xD0;
+ HDE = video_mode->xres / 2;
+ cr50 |= 0x30;
+ break;
+ }
+
+ WCrt (regs, CRT_ID_EXT_MISC_CNTL_2, clock_mode | test);
+ WSeq (regs, SEQ_ID_CLKSYN_CNTL_2, sr15);
+ WSeq (regs, SEQ_ID_RAMDAC_CNTL, sr18);
+ WCrt (regs, CRT_ID_SCREEN_OFFSET, HDE);
+
+ WCrt (regs, CRT_ID_MISC_1, (TEXT ? 0x05 : 0x35));
+
+ test = RCrt (regs, CRT_ID_EXT_SYS_CNTL_2);
+ test &= ~0x30;
+ test |= (HDE >> 4) & 0x30;
+ WCrt (regs, CRT_ID_EXT_SYS_CNTL_2, test);
+
+ /* Set up graphics engine */
+ switch (video_mode->xres) {
+ case 1024:
+ cr50 |= 0x00;
+ break;
+
+ case 640:
+ cr50 |= 0x40;
+ break;
+
+ case 800:
+ cr50 |= 0x80;
+ break;
+
+ case 1280:
+ cr50 |= 0xC0;
+ break;
+
+ case 1152:
+ cr50 |= 0x01;
+ break;
+
+ case 1600:
+ cr50 |= 0x81;
+ break;
+
+ default: /* XXX */
+ break;
+ }
+
+ WCrt (regs, CRT_ID_EXT_SYS_CNTL_1, cr50);
+
+ udelay(100);
+ WAttr (regs, ACT_ID_ATTR_MODE_CNTL, (TEXT ? 0x08 : 0x41));
+ udelay(100);
+ WAttr (regs, ACT_ID_COLOR_PLANE_ENA,
+ (video_mode->bits_per_pixel == 1) ? 0x01 : 0x0F);
+ udelay(100);
+
+ tfillm = (96 * (cv64_memclk / 1000)) / 240000;
+
+ switch (video_mode->bits_per_pixel) {
+ case 32:
+ case 24:
+ temptym = (24 * (cv64_memclk / 1000)) / (freq / 1000);
+ break;
+ case 15:
+ case 16:
+ temptym = (48 * (cv64_memclk / 1000)) / (freq / 1000);
+ break;
+ case 4:
+ temptym = (192 * (cv64_memclk / 1000)) / (freq / 1000);
+ break;
+ default:
+ temptym = (96 * (cv64_memclk / 1000)) / (freq / 1000);
+ break;
+ }
+
+ m = (temptym - tfillm - 9) / 2;
+ if (m < 0)
+ m = 0;
+ m = (m & 0x1F) << 3;
+ if (m < 0x18)
+ m = 0x18;
+ n = 0xFF;
+
+ WCrt (regs, CRT_ID_EXT_MEM_CNTL_2, m);
+ WCrt (regs, CRT_ID_EXT_MEM_CNTL_3, n);
+ udelay(10);
+
+ /* Text initialization */
+
+ if (TEXT) {
+ /* Do text initialization here ! */
+ }
+
+ if (CONSOLE) {
+ int i;
+ wb_64 (regs, VDAC_ADDRESS_W, 0);
+ for (i = 0; i < 4; i++) {
+ wb_64 (regs, VDAC_DATA, cvconscolors [i][0]);
+ wb_64 (regs, VDAC_DATA, cvconscolors [i][1]);
+ wb_64 (regs, VDAC_DATA, cvconscolors [i][2]);
+ }
+ }
+
+ WAttr (regs, 0x33, 0);
+
+ /* Turn gfx on again */
+ gfx_on_off (0, (volatile unsigned char *) regs);
+
+ /* Pass-through */
+ cvscreen (0, CyberBase);
+
+DPRINTK("EXIT\n");
+}
+
+void cvision_bitblt (u_short sx, u_short sy, u_short dx, u_short dy,
+ u_short w, u_short h)
+{
+ volatile unsigned char *regs = CyberRegs;
+ unsigned short drawdir = 0;
+
+ DPRINTK("ENTER\n");
+ if (sx > dx) {
+ drawdir |= 1 << 5;
+ } else {
+ sx += w - 1;
+ dx += w - 1;
+ }
+
+ if (sy > dy) {
+ drawdir |= 1 << 7;
+ } else {
+ sy += h - 1;
+ dy += h - 1;
+ }
+
+ Cyber_WaitBlit();
+ vgaw16 (regs, ECR_READ_REG_DATA, 0xA000);
+ vgaw16 (regs, ECR_BKGD_MIX, 0x7);
+ vgaw16 (regs, ECR_FRGD_MIX, 0x67);
+ vgaw16 (regs, ECR_BKGD_COLOR, 0x0);
+ vgaw16 (regs, ECR_FRGD_COLOR, 0x1);
+ vgaw16 (regs, ECR_BITPLANE_READ_MASK, 0x1);
+ vgaw16 (regs, ECR_BITPLANE_WRITE_MASK, 0xFFF);
+ vgaw16 (regs, ECR_CURRENT_Y_POS, sy);
+ vgaw16 (regs, ECR_CURRENT_X_POS, sx);
+ vgaw16 (regs, ECR_DEST_Y__AX_STEP, dy);
+ vgaw16 (regs, ECR_DEST_X__DIA_STEP, dx);
+ vgaw16 (regs, ECR_READ_REG_DATA, h - 1);
+ vgaw16 (regs, ECR_MAJ_AXIS_PIX_CNT, w - 1);
+ vgaw16 (regs, ECR_DRAW_CMD, 0xC051 | drawdir);
+ DPRINTK("EXIT\n");
+}
+
+void cvision_clear (u_short dx, u_short dy, u_short w, u_short h, u_short bg)
+{
+ volatile unsigned char *regs = CyberRegs;
+ DPRINTK("ENTER\n");
+ Cyber_WaitBlit();
+ vgaw16 (regs, ECR_FRGD_MIX, 0x0027);
+ vgaw16 (regs, ECR_FRGD_COLOR, bg);
+ vgaw16 (regs, ECR_READ_REG_DATA, 0xA000);
+ vgaw16 (regs, ECR_CURRENT_Y_POS, dy);
+ vgaw16 (regs, ECR_CURRENT_X_POS, dx);
+ vgaw16 (regs, ECR_READ_REG_DATA, h - 1);
+ vgaw16 (regs, ECR_MAJ_AXIS_PIX_CNT, w - 1);
+ vgaw16 (regs, ECR_DRAW_CMD, 0x40B1);
+ DPRINTK("EXIT\n");
+}
+
+#ifdef CYBERFBDEBUG
+/*
+ * Dump internal settings of CyberVision board
+ */
+static void cv64_dump (void)
+{
+ volatile unsigned char *regs = CyberRegs;
+ DPRINTK("ENTER\n");
+ /* Dump the VGA setup values */
+ *(regs + S3_CRTC_ADR) = 0x00;
+ DPRINTK("CR00 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x01;
+ DPRINTK("CR01 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x02;
+ DPRINTK("CR02 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x03;
+ DPRINTK("CR03 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x04;
+ DPRINTK("CR04 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x05;
+ DPRINTK("CR05 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x06;
+ DPRINTK("CR06 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x07;
+ DPRINTK("CR07 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x08;
+ DPRINTK("CR08 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x09;
+ DPRINTK("CR09 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x10;
+ DPRINTK("CR10 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x11;
+ DPRINTK("CR11 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x12;
+ DPRINTK("CR12 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x13;
+ DPRINTK("CR13 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x15;
+ DPRINTK("CR15 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x16;
+ DPRINTK("CR16 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x36;
+ DPRINTK("CR36 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x37;
+ DPRINTK("CR37 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x42;
+ DPRINTK("CR42 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x43;
+ DPRINTK("CR43 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x50;
+ DPRINTK("CR50 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x51;
+ DPRINTK("CR51 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x53;
+ DPRINTK("CR53 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x58;
+ DPRINTK("CR58 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x59;
+ DPRINTK("CR59 = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x5A;
+ DPRINTK("CR5A = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x5D;
+ DPRINTK("CR5D = %x\n", *(regs + S3_CRTC_DATA));
+ *(regs + S3_CRTC_ADR) = 0x5E;
+ DPRINTK("CR5E = %x\n", *(regs + S3_CRTC_DATA));
+ DPRINTK("MISC = %x\n", *(regs + GREG_MISC_OUTPUT_R));
+ *(regs + SEQ_ADDRESS) = 0x01;
+ DPRINTK("SR01 = %x\n", *(regs + SEQ_ADDRESS_R));
+ *(regs + SEQ_ADDRESS) = 0x02;
+ DPRINTK("SR02 = %x\n", *(regs + SEQ_ADDRESS_R));
+ *(regs + SEQ_ADDRESS) = 0x03;
+ DPRINTK("SR03 = %x\n", *(regs + SEQ_ADDRESS_R));
+ *(regs + SEQ_ADDRESS) = 0x09;
+ DPRINTK("SR09 = %x\n", *(regs + SEQ_ADDRESS_R));
+ *(regs + SEQ_ADDRESS) = 0x10;
+ DPRINTK("SR10 = %x\n", *(regs + SEQ_ADDRESS_R));
+ *(regs + SEQ_ADDRESS) = 0x11;
+ DPRINTK("SR11 = %x\n", *(regs + SEQ_ADDRESS_R));
+ *(regs + SEQ_ADDRESS) = 0x12;
+ DPRINTK("SR12 = %x\n", *(regs + SEQ_ADDRESS_R));
+ *(regs + SEQ_ADDRESS) = 0x13;
+ DPRINTK("SR13 = %x\n", *(regs + SEQ_ADDRESS_R));
+ *(regs + SEQ_ADDRESS) = 0x15;
+ DPRINTK("SR15 = %x\n", *(regs + SEQ_ADDRESS_R));
+
+ return;
+}
+#endif
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-28 19:42:13 +0000