cyberfb.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:62k
- /*
- * 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 int currcon = 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_set_cmap(struct fb_cmap *cmap, int kspc, int con,
- 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);
- static void Cyberfb_blank(int blank, 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);
- static int Cyber_setcolreg(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 do_install_cmap(int con, struct fb_info *info);
- 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("ENTERn");
- /* 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 boardn");
- cv64_dump();
- #endif
- /* Clear framebuffer memory */
- DPRINTK("Clear framebuffer memoryn");
- memset ((char *)CyberMem, 0, CyberSize);
- /* Disable hardware cursor */
- DPRINTK("Disable HW cursorn");
- 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 cursorn");
- 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;
- }
- Cyber_setcolreg (255, 56<<8, 100<<8, 160<<8, 0, NULL /* unused */);
- Cyber_setcolreg (254, 0, 0, 0, 0, NULL /* unused */);
- DPRINTK("EXITn");
- 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("ENTERn");
- 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("EXITn");
- 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("ENTERn");
- 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("EXITn");
- 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("ENTERn");
- 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("EXITn");
- return(0);
- }
- /*
- * Set a single color register. Return != 0 for invalid regno.
- */
- static int Cyber_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("ENTERn");*/
- if (regno > 255) {
- DPRINTK("EXIT - Register # > 255n");
- 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("EXITn");*/
- 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("ENTERn");*/
- if (regno > 255) {
- DPRINTK("EXIT - Register # > 255n");
- 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("EXITn");*/
- return (0);
- }
- /*
- * (Un)Blank the screen
- * blank: 1 = zero fb cmap
- * 0 = restore fb cmap from local cmap
- */
- void Cyberfb_blank(int blank, struct fb_info *info)
- {
- volatile unsigned char *regs = CyberRegs;
- int i;
- DPRINTK("ENTERn");
- #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("EXITn");
- }
- /**************************************************************
- * We are waiting for "fifo" FIFO-slots empty
- */
- static void Cyber_WaitQueue (u_short fifo)
- {
- unsigned short status;
- DPRINTK("ENTERn");
- do {
- status = *((u_short volatile *)(CyberRegs + S3_GP_STAT));
- } while (status & fifo);
- DPRINTK("EXITn");
- }
- /**************************************************************
- * We are waiting for Hardware (Graphics Engine) not busy
- */
- static void Cyber_WaitBlit (void)
- {
- unsigned short status;
- DPRINTK("ENTERn");
- do {
- status = *((u_short volatile *)(CyberRegs + S3_GP_STAT));
- } while (status & S3_HDW_BUSY);
- DPRINTK("EXITn");
- }
- /**************************************************************
- * 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("ENTERn");
- /* 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("EXITn");
- }
- /**************************************************************
- * 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("ENTERn");
- 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("EXITn");
- }
- #if 0
- /**************************************************************
- * Move cursor to x, y
- */
- static void Cyber_MoveCursor (u_short x, u_short y)
- {
- volatile unsigned char *regs = CyberRegs;
- DPRINTK("ENTERn");
- *(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("EXITn");
- }
- #endif
- /* -------------------- Generic routines ---------------------------------- */
- /*
- * Fill the hardware's `par' structure.
- */
- static void cyberfb_get_par(struct cyberfb_par *par)
- {
- DPRINTK("ENTERn");
- if (current_par_valid) {
- *par = current_par;
- } else {
- Cyber_decode_var(&cyberfb_default, par);
- }
- DPRINTK("EXITn");
- }
- static void cyberfb_set_par(struct cyberfb_par *par)
- {
- DPRINTK("ENTERn");
- current_par = *par;
- current_par_valid = 1;
- DPRINTK("EXITn");
- }
- 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 moden");
- cv64_dump();
- #endif
- }
- static int do_fb_set_var(struct fb_var_screeninfo *var, int isactive)
- {
- int err, activate;
- struct cyberfb_par par;
- DPRINTK("ENTERn");
- if ((err = Cyber_decode_var(var, &par))) {
- DPRINTK("EXIT - decode_var failedn");
- 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("EXITn");
- return 0;
- }
- static void do_install_cmap(int con, struct fb_info *info)
- {
- DPRINTK("ENTERn");
- if (con != currcon) {
- DPRINTK("EXIT - Not current consolen");
- return;
- }
- if (fb_display[con].cmap.len) {
- DPRINTK("Use console cmapn");
- fb_set_cmap(&fb_display[con].cmap, 1, Cyber_setcolreg, info);
- } else {
- DPRINTK("Use default cmapn");
- fb_set_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),
- 1, Cyber_setcolreg, info);
- }
- DPRINTK("EXITn");
- }
- /*
- * 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("ENTERn");
- if (con == -1) {
- cyberfb_get_par(&par);
- } else {
- error = Cyber_decode_var(&fb_display[con].var, &par);
- }
- DPRINTK("EXITn");
- 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("ENTERn");
- 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("EXITn");
- return(error);
- }
- static void cyberfb_set_disp(int con, struct fb_info *info)
- {
- struct fb_fix_screeninfo fix;
- struct display *display;
- DPRINTK("ENTERn");
- 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->screen_base = (unsigned char *)CyberMem;
- 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("EXITn");
- }
- /*
- * 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("ENTERn");
- if ((err = do_fb_set_var(var, con == currcon))) {
- DPRINTK("EXIT - do_fb_set_var failedn");
- 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("EXITn");
- return(0);
- }
- /*
- * Get the Colormap
- */
- static int cyberfb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
- struct fb_info *info)
- {
- DPRINTK("ENTERn");
- if (con == currcon) { /* current console? */
- DPRINTK("EXIT - console is current consolen");
- return(fb_get_cmap(cmap, kspc, Cyber_getcolreg, info));
- } else if (fb_display[con].cmap.len) { /* non default colormap? */
- DPRINTK("Use console cmapn");
- fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
- } else {
- DPRINTK("Use default cmapn");
- fb_copy_cmap(fb_default_cmap(1<<fb_display[con].var.bits_per_pixel),
- cmap, kspc ? 0 : 2);
- }
- DPRINTK("EXITn");
- return(0);
- }
- /*
- * Set the Colormap
- */
- static int cyberfb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
- struct fb_info *info)
- {
- int err;
- DPRINTK("ENTERn");
- if (!fb_display[con].cmap.len) { /* no colormap allocated? */
- if ((err = fb_alloc_cmap(&fb_display[con].cmap,
- 1<<fb_display[con].var.bits_per_pixel,
- 0))) {
- DPRINTK("EXIT - fb_alloc_cmap failedn");
- return(err);
- }
- }
- if (con == currcon) { /* current console? */
- DPRINTK("EXIT - Current consolen");
- return(fb_set_cmap(cmap, kspc, Cyber_setcolreg, info));
- } else {
- fb_copy_cmap(cmap, &fb_display[con].cmap, kspc ? 0 : 1);
- }
- DPRINTK("EXITn");
- 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: cyberfb_set_cmap,
- };
- int __init cyberfb_setup(char *options)
- {
- char *this_opt;
- DPRINTK("ENTERn");
- fb_info.fontname[0] = ' ';
- if (!options || !*options) {
- DPRINTK("EXIT - no optionsn");
- 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=%dn",
- cyberfb_default.xres,
- cyberfb_default.yres,
- cyberfb_default.bits_per_pixel);
- DPRINTK("EXITn");
- return 0;
- }
- /*
- * Initialization
- */
- int __init cyberfb_init(void)
- {
- unsigned long board_addr, board_size;
- struct cyberfb_par par;
- struct zorro_dev *z = NULL;
- DPRINTK("ENTERn");
- 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=%08lxn", board_addr);
- DPRINTK("board_size=%08lxn", board_size);
- CyberBase = ioremap(board_addr, board_size);
- CyberRegs = CyberBase + 0x02000000;
- CyberMem = CyberBase + 0x01400000;
- DPRINTK("CyberBase=%08lx CyberRegs=%08lx CyberMem=%08lxn",
- CyberBase, (long unsigned int)CyberRegs, CyberMem);
- #ifdef CYBERFBDEBUG
- DPRINTK("Register state just after mapping memoryn");
- cv64_dump();
- #endif
- strcpy(fb_info.modename, cyberfb_name);
- fb_info.changevar = NULL;
- fb_info.node = -1;
- fb_info.fbops = &cyberfb_ops;
- fb_info.disp = &disp;
- fb_info.switch_con = &Cyberfb_switch;
- fb_info.updatevar = &Cyberfb_updatevar;
- fb_info.blank = &Cyberfb_blank;
- Cyber_init();
- /* ++Andre: set cyberfb default mode */
- if (!cyberfb_usermode) {
- cyberfb_default = cyberfb_predefined[CYBER8_DEFMODE].var;
- DPRINTK("Use default cyber8 moden");
- }
- 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 failedn");
- 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 memoryn",
- GET_FB_IDX(fb_info.node), fb_info.modename, CyberSize>>10);
- /* TODO: This driver cannot be unloaded yet */
- MOD_INC_USE_COUNT;
- DPRINTK("EXITn");
- return 0;
- }
- return -ENXIO;
- }
- static int Cyberfb_switch(int con, struct fb_info *info)
- {
- DPRINTK("ENTERn");
- /* Do we have to save the colormap? */
- if (fb_display[currcon].cmap.len) {
- fb_get_cmap(&fb_display[currcon].cmap, 1, Cyber_getcolreg,
- info);
- }
- do_fb_set_var(&fb_display[con].var, 1);
- currcon = con;
- /* Install new colormap */
- do_install_cmap(con, info);
- DPRINTK("EXITn");
- 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 - Exitn");
- return(0);
- }
- /*
- * Get a Video Mode
- */
- static int __init get_video_mode(const char *name)
- {
- int i;
- DPRINTK("ENTERn");
- 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 moden");
- 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("ENTERn");
- 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("EXITn");
- }
- static void fbcon_cyber8_clear(struct vc_data *conp, struct display *p, int sy,
- int sx, int height, int width)
- {
- unsigned char bg;
- DPRINTK("ENTERn");
- 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("EXITn");
- }
- static void fbcon_cyber8_putc(struct vc_data *conp, struct display *p, int c,
- int yy, int xx)
- {
- DPRINTK("ENTERn");
- Cyber_WaitBlit();
- fbcon_cfb8_putc(conp, p, c, yy, xx);
- DPRINTK("EXITn");
- }
- static void fbcon_cyber8_putcs(struct vc_data *conp, struct display *p,
- const unsigned short *s, int count,
- int yy, int xx)
- {
- DPRINTK("ENTERn");
- Cyber_WaitBlit();
- fbcon_cfb8_putcs(conp, p, s, count, yy, xx);
- DPRINTK("EXITn");
- }
- static void fbcon_cyber8_revc(struct display *p, int xx, int yy)
- {
- DPRINTK("ENTERn");
- Cyber_WaitBlit();
- fbcon_cfb8_revc(p, xx, yy);
- DPRINTK("EXITn");
- }
- 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();
- }
- void cleanup_module(void)
- {
- /* Not reached because the usecount will never be
- decremented to zero */
- unregister_framebuffer(&fb_info);
- /* TODO: clean up ... */
- }
- #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("ENTERn");
- addr = base + 0x40001;
- if (bits & 0x8000) {
- cvportbits |= bits & 0xff; /* Set bits */
- DPRINTK("Set bits: %04xn", bits);
- } else {
- bits = bits & 0xff;
- bits = (~bits) & 0xff;
- cvportbits &= bits; /* Clear bits */
- DPRINTK("Clear bits: %04xn", bits);
- }
- *addr = cvportbits;
- DPRINTK("EXITn");
- }
- /*
- * 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("ENTERn");
- if (toggle == 1) {
- DPRINTK("Show Amiga videon");
- cv64_write_port (0x10, board);
- } else {
- DPRINTK("Show CyberVision videon");
- cv64_write_port (0x8010, board);
- }
- DPRINTK("EXITn");
- }
- /* Control screen display */
- /* toggle: 0 = on, 1 = off */
- /* board = registerbase */
- inline void gfx_on_off(int toggle, volatile unsigned char *regs)
- {
- int r;
- DPRINTK("ENTERn");
-
- toggle &= 0x1;
- toggle = toggle << 5;
- DPRINTK("Turn display %sn", (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("EXITn");
- }
- /*
- * 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("ENTERn");
- if (freq < 12500000 || freq > MAXPIXELCLOCK) {
- printk("CV64 driver: Illegal clock frequency %ld, using 25MHzn",
- freq);
- freq = 25000000;
- }
- DPRINTK("Freq = %ldn", 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("EXITn");
- return (erg);
- }
- static int cv_has_4mb (volatile unsigned char *fb)
- {
- volatile unsigned long *tr, *tw;
- DPRINTK("ENTERn");
- /* 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 - <4MBn");
- return (0);
- }
- /* upper memory region */
- tw = (volatile unsigned long *) (fb + 0x00200000);
- tr = (volatile unsigned long *) (fb + 0x02200000);
- *tw = 0x87654321;
- if (*tr != 0x87654321) {
- DPRINTK("EXIT - <4MBn");
- return (0);
- }
- *tw = 0xAAAAAAAA;
- if (*tr != 0xAAAAAAAA) {
- DPRINTK("EXIT - <4MBn");
- return (0);
- }
- *tw = 0x55555555;
- if (*tr != 0x55555555) {
- DPRINTK("EXIT - <4MBn");
- return (0);
- }
- DPRINTK("EXITn");
- return (1);
- }
- static void cv64_board_init (void)
- {
- volatile unsigned char *regs = CyberRegs;
- int i;
- unsigned int clockpar;
- unsigned char test;
-
- DPRINTK("ENTERn");
- /*
- * 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 boardn");
- } else {
- CyberSize = 1024 * 1024 * 2;
- WCrt (regs, CRT_ID_LAW_CNTL, 0x12);
- DPRINTK("2MB boardn");
- }
- /* 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("EXITn");
- }
- 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("ENTERn");
- 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("EXITn");
- }
- 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("ENTERn");
- 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("EXITn");
- }
- void cvision_clear (u_short dx, u_short dy, u_short w, u_short h, u_short bg)
- {
- volatile unsigned char *regs = CyberRegs;
- DPRINTK("ENTERn");
- 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("EXITn");
- }
- #ifdef CYBERFBDEBUG
- /*
- * Dump internal settings of CyberVision board
- */
- static void cv64_dump (void)
- {
- volatile unsigned char *regs = CyberRegs;
- DPRINTK("ENTERn");
- /* Dump the VGA setup values */
- *(regs + S3_CRTC_ADR) = 0x00;
- DPRINTK("CR00 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x01;
- DPRINTK("CR01 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x02;
- DPRINTK("CR02 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x03;
- DPRINTK("CR03 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x04;
- DPRINTK("CR04 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x05;
- DPRINTK("CR05 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x06;
- DPRINTK("CR06 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x07;
- DPRINTK("CR07 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x08;
- DPRINTK("CR08 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x09;
- DPRINTK("CR09 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x10;
- DPRINTK("CR10 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x11;
- DPRINTK("CR11 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x12;
- DPRINTK("CR12 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x13;
- DPRINTK("CR13 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x15;
- DPRINTK("CR15 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x16;
- DPRINTK("CR16 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x36;
- DPRINTK("CR36 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x37;
- DPRINTK("CR37 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x42;
- DPRINTK("CR42 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x43;
- DPRINTK("CR43 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x50;
- DPRINTK("CR50 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x51;
- DPRINTK("CR51 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x53;
- DPRINTK("CR53 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x58;
- DPRINTK("CR58 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x59;
- DPRINTK("CR59 = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x5A;
- DPRINTK("CR5A = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x5D;
- DPRINTK("CR5D = %xn", *(regs + S3_CRTC_DATA));
- *(regs + S3_CRTC_ADR) = 0x5E;
- DPRINTK("CR5E = %xn", *(regs + S3_CRTC_DATA));
- DPRINTK("MISC = %xn", *(regs + GREG_MISC_OUTPUT_R));
- *(regs + SEQ_ADDRESS) = 0x01;
- DPRINTK("SR01 = %xn", *(regs + SEQ_ADDRESS_R));
- *(regs + SEQ_ADDRESS) = 0x02;
- DPRINTK("SR02 = %xn", *(regs + SEQ_ADDRESS_R));
- *(regs + SEQ_ADDRESS) = 0x03;
- DPRINTK("SR03 = %xn", *(regs + SEQ_ADDRESS_R));
- *(regs + SEQ_ADDRESS) = 0x09;
- DPRINTK("SR09 = %xn", *(regs + SEQ_ADDRESS_R));
- *(regs + SEQ_ADDRESS) = 0x10;
- DPRINTK("SR10 = %xn", *(regs + SEQ_ADDRESS_R));
- *(regs + SEQ_ADDRESS) = 0x11;
- DPRINTK("SR11 = %xn", *(regs + SEQ_ADDRESS_R));
- *(regs + SEQ_ADDRESS) = 0x12;
- DPRINTK("SR12 = %xn", *(regs + SEQ_ADDRESS_R));
- *(regs + SEQ_ADDRESS) = 0x13;
- DPRINTK("SR13 = %xn", *(regs + SEQ_ADDRESS_R));
- *(regs + SEQ_ADDRESS) = 0x15;
- DPRINTK("SR15 = %xn", *(regs + SEQ_ADDRESS_R));
-
- return;
- }
- #endif