/*
* Frame buffer driver for Trident TGUI, Blade and Image series
*
* Copyright 2001, 2002 - Jani Monoses <jani@iv.ro>
* Copyright 2009 Krzysztof Helt <krzysztof.h1@wp.pl>
*
* CREDITS:(in order of appearance)
* skeletonfb.c by Geert Uytterhoeven and other fb code in drivers/video
* Special thanks ;) to Mattia Crivellini <tia@mclink.it>
* much inspired by the XFree86 4.x Trident driver sources
* by Alan Hourihane the FreeVGA project
* Francesco Salvestrini <salvestrini@users.sf.net> XP support,
* code, suggestions
* TODO:
* timing value tweaking so it looks good on every monitor in every mode
*/
#include <linux/module.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <video/vga.h>
#include <video/trident.h>
struct tridentfb_par {
void __iomem *io_virt; /* iospace virtual memory address */
u32 pseudo_pal[16];
int chip_id;
int flatpanel;
void (*init_accel) (struct tridentfb_par *, int, int);
void (*wait_engine) (struct tridentfb_par *);
void (*fill_rect)
(struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
void (*copy_rect)
(struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
void (*image_blit)
(struct tridentfb_par *par, const char*,
u32, u32, u32, u32, u32, u32);
unsigned char eng_oper; /* engine operation... */
};
static struct fb_fix_screeninfo tridentfb_fix = {
.id = "Trident",
.type = FB_TYPE_PACKED_PIXELS,
.ypanstep = 1,
.visual = FB_VISUAL_PSEUDOCOLOR,
.accel = FB_ACCEL_NONE,
};
/* defaults which are normally overriden by user values */
/* video mode */
static char *mode_option = "640x480-8@60";
static int bpp = 8;
static int noaccel;
static int center;
static int stretch;
static int fp;
static int crt;
static int memsize;
static int memdiff;
static int nativex;
module_param(mode_option, charp, 0);
MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'");
module_param_named(mode, mode_option, charp, 0);
MODULE_PARM_DESC(mode, "Initial video mode e.g. '648x480-8@60' (deprecated)");
module_param(bpp, int, 0);
module_param(center, int, 0);
module_param(stretch, int, 0);
module_param(noaccel, int, 0);
module_param(memsize, int, 0);
module_param(memdiff, int, 0);
module_param(nativex, int, 0);
module_param(fp, int, 0);
MODULE_PARM_DESC(fp, "Define if flatpanel is connected");
module_param(crt, int, 0);
MODULE_PARM_DESC(crt, "Define if CRT is connected");
static inline int is_oldclock(int id)
{
return (id == TGUI9440) ||
(id == TGUI9660) ||
(id == CYBER9320);
}
static inline int is_oldprotect(int i
| 