// SPDX-License-Identifier: GPL-2.0-only
/*
*
* tdfxfb . c
*
* Author : Hannu Mallat < hmallat @ cc . hut . fi >
*
* Copyright © 1999 Hannu Mallat
* All rights reserved
*
* Created : Thu Sep 23 18 : 17 : 43 1999 , hmallat
* Last modified : Tue Nov 2 21 : 19 : 47 1999 , hmallat
*
* I2C part copied from the i2c - voodoo3 . c driver by :
* Frodo Looijaard < frodol @ dds . nl > ,
* Philip Edelbrock < phil @ netroedge . com > ,
* Ralph Metzler < rjkm @ thp . uni - koeln . de > , and
* Mark D . Studebaker < mdsxyz123 @ yahoo . com >
*
* Lots of the information here comes from the Daryll Strauss ' Banshee
* patches to the XF86 server , and the rest comes from the 3 dfx
* Banshee specification . I ' m very much indebted to Daryll for his
* work on the X server .
*
* Voodoo3 support was contributed Harold Oga . Lots of additions
* ( proper acceleration , 24 bpp , hardware cursor ) and bug fixes by Attila
* Kesmarki . Thanks guys !
*
* Voodoo1 and Voodoo2 support aren ' t relevant to this driver as they
* behave very differently from the Voodoo3 / 4 / 5 . For anyone wanting to
* use frame buffer on the Voodoo1 / 2 , see the sstfb driver ( which is
* located at http : //www.sourceforge.net/projects/sstfb).
*
* While I _ am_ grateful to 3 Dfx for releasing the specs for Banshee ,
* I do wish the next version is a bit more complete . Without the XF86
* patches I couldn ' t have gotten even this far . . . for instance , the
* extensions to the VGA register set go completely unmentioned in the
* spec ! Also , lots of references are made to the ' SST core ' , but no
* spec is publicly available , AFAIK .
*
* The structure of this driver comes pretty much from the Permedia
* driver by Ilario Nardinocchi , which in turn is based on skeletonfb .
*
* TODO :
* - multihead support ( basically need to support an array of fb_infos )
* - support other architectures ( PPC , Alpha ) ; does the fact that the VGA
* core can be accessed only thru I / O ( not memory mapped ) complicate
* things ?
*
* Version history :
*
* 0 . 1 . 4 ( released 2002 - 05 - 28 ) ported over to new fbdev api by James Simmons
*
* 0 . 1 . 3 ( released 1999 - 11 - 02 ) added Attila ' s panning support , code
* reorg , hwcursor address page size alignment
* ( for mmapping both frame buffer and regs ) ,
* and my changes to get rid of hardcoded
* VGA i / o register locations ( uses PCI
* configuration info now )
* 0 . 1 . 2 ( released 1999 - 10 - 19 ) added Attila Kesmarki ' s bug fixes and
* improvements
* 0 . 1 . 1 ( released 1999 - 10 - 07 ) added Voodoo3 support by Harold Oga .
* 0 . 1 . 0 ( released 1999 - 10 - 06 ) initial version
*
*/
#include <linux/aperture.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/fb.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <asm /io.h>
#include <video/tdfx.h>
#define DPRINTK(a, b...) pr_debug("fb: %s: " a, __func__ , ## b)
#define BANSHEE_MAX_PIXCLOCK 270000
#define VOODOO3_MAX_PIXCLOCK 300000
#define VOODOO5_MAX_PIXCLOCK 350000
static const struct fb_fix_screeninfo tdfx_fix = {
.type = FB_TYPE_PACKED_PIXELS,
.visual = FB_VISUAL_PSEUDOCOLOR,
.ypanstep = 1 ,
.ywrapstep = 1 ,
.accel = FB_ACCEL_3DFX_BANSHEE
};
static const struct fb_var_screeninfo tdfx_var = {
/* "640x480, 8 bpp @ 60 Hz */
.xres = 640 ,
.yres = 480 ,
.xres_virtual = 640 ,
.yres_virtual = 1024 ,
.bits_per_pixel = 8 ,
.red = {0 , 8 , 0 },
.blue = {0 , 8 , 0 },
.green = {0 , 8 , 0 },
.activate = FB_ACTIVATE_NOW,
.height = -1 ,
.width = -1 ,
.accel_flags = FB_ACCELF_TEXT,
.pixclock = 39722 ,
.left_margin = 40 ,
.right_margin = 24 ,
.upper_margin = 32 ,
.lower_margin = 11 ,
.hsync_len = 96 ,
.vsync_len = 2 ,
.vmode = FB_VMODE_NONINTERLACED
};
/*
* PCI driver prototypes
*/
static int tdfxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id);
static void tdfxfb_remove(struct pci_dev *pdev);
static const struct pci_device_id tdfxfb_id_table[] = {
{ PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_BANSHEE,
PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16 ,
0 xff0000, 0 },
{ PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO3,
PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16 ,
0 xff0000, 0 },
{ PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_VOODOO5,
PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16 ,
0 xff0000, 0 },
{ 0 , }
};
static struct pci_driver tdfxfb_driver = {
.name = "tdfxfb" ,
.id_table = tdfxfb_id_table,
.probe = tdfxfb_probe,
.remove = tdfxfb_remove,
};
MODULE_DEVICE_TABLE(pci, tdfxfb_id_table);
/*
* Driver data
*/
static int nopan;
static int nowrap = 1 ; /* not implemented (yet) */
static int hwcursor = 1 ;
static char *mode_option;
static bool nomtrr;
/* -------------------------------------------------------------------------
* Hardware - specific funcions
* ------------------------------------------------------------------------- */
static inline u8 vga_inb(struct tdfx_par *par, u32 reg)
{
return inb(par->iobase + reg - 0 x300);
}
static inline void vga_outb(struct tdfx_par *par, u32 reg, u8 val)
{
outb(val, par->iobase + reg - 0 x300);
}
static inline void gra_outb(struct tdfx_par *par, u32 idx, u8 val)
{
vga_outb(par, GRA_I, idx);
wmb();
vga_outb(par, GRA_D, val);
wmb();
}
static inline void seq_outb(struct tdfx_par *par, u32 idx, u8 val)
{
vga_outb(par, SEQ_I, idx);
wmb();
vga_outb(par, SEQ_D, val);
wmb();
}
static inline u8 seq_inb(struct tdfx_par *par, u32 idx)
{
vga_outb(par, SEQ_I, idx);
mb();
return vga_inb(par, SEQ_D);
}
static inline void crt_outb(struct tdfx_par *par, u32 idx, u8 val)
{
vga_outb(par, CRT_I, idx);
wmb();
vga_outb(par, CRT_D, val);
wmb();
}
static inline u8 crt_inb(struct tdfx_par *par, u32 idx)
{
vga_outb(par, CRT_I, idx);
mb();
return vga_inb(par, CRT_D);
}
static inline void att_outb(struct tdfx_par *par, u32 idx, u8 val)
{
vga_inb(par, IS1_R);
vga_outb(par, ATT_IW, idx);
vga_outb(par, ATT_IW, val);
}
static inline void vga_disable_video(struct tdfx_par *par)
{
unsigned char s;
s = seq_inb(par, 0 x01) | 0 x20;
seq_outb(par, 0 x00, 0 x01);
seq_outb(par, 0 x01, s);
seq_outb(par, 0 x00, 0 x03);
}
static inline void vga_enable_video(struct tdfx_par *par)
{
unsigned char s;
s = seq_inb(par, 0 x01) & 0 xdf;
seq_outb(par, 0 x00, 0 x01);
seq_outb(par, 0 x01, s);
seq_outb(par, 0 x00, 0 x03);
}
static inline void vga_enable_palette(struct tdfx_par *par)
{
vga_inb(par, IS1_R);
mb();
vga_outb(par, ATT_IW, 0 x20);
}
static inline u32 tdfx_inl(struct tdfx_par *par, unsigned int reg)
{
return readl(par->regbase_virt + reg);
}
static inline void tdfx_outl(struct tdfx_par *par, unsigned int reg, u32 val)
{
writel(val, par->regbase_virt + reg);
}
static inline void banshee_make_room(struct tdfx_par *par, int size)
{
/* Note: The Voodoo3's onboard FIFO has 32 slots. This loop
* won't quit if you ask for more. */
while ((tdfx_inl(par, STATUS) & 0 x1f) < size - 1 )
cpu_relax();
}
static int banshee_wait_idle(struct fb_info *info)
{
struct tdfx_par *par = info->par;
int i = 0 ;
banshee_make_room(par, 1 );
tdfx_outl(par, COMMAND_3D, COMMAND_3D_NOP);
do {
if ((tdfx_inl(par, STATUS) & STATUS_BUSY) == 0 )
i++;
} while (i < 3 );
return 0 ;
}
/*
* Set the color of a palette entry in 8 bpp mode
*/
static inline void do_setpalentry(struct tdfx_par *par, unsigned regno, u32 c)
{
banshee_make_room(par, 2 );
tdfx_outl(par, DACADDR, regno);
/* read after write makes it working */
tdfx_inl(par, DACADDR);
tdfx_outl(par, DACDATA, c);
}
static u32 do_calc_pll(int freq, int *freq_out)
{
int m, n, k, best_m, best_n, best_k, best_error;
int fref = 14318 ;
best_error = freq;
best_n = best_m = best_k = 0 ;
for (k = 3 ; k >= 0 ; k--) {
for (m = 63 ; m >= 0 ; m--) {
/*
* Estimate value of n that produces target frequency
* with current m and k
*/
int n_estimated = ((freq * (m + 2 ) << k) / fref) - 2 ;
/* Search neighborhood of estimated n */
for (n = max(0 , n_estimated);
n <= min(255 , n_estimated + 1 );
n++) {
/*
* Calculate PLL freqency with current m , k and
* estimated n
*/
int f = (fref * (n + 2 ) / (m + 2 )) >> k;
int error = abs(f - freq);
/*
* If this is the closest we ' ve come to the
* target frequency then remember n , m and k
*/
if (error < best_error) {
best_error = error;
best_n = n;
best_m = m;
best_k = k;
}
}
}
}
n = best_n;
m = best_m;
k = best_k;
*freq_out = (fref * (n + 2 ) / (m + 2 )) >> k;
return (n << 8 ) | (m << 2 ) | k;
}
static void do_write_regs(struct fb_info *info, struct banshee_reg *reg)
{
struct tdfx_par *par = info->par;
int i;
banshee_wait_idle(info);
tdfx_outl(par, MISCINIT1, tdfx_inl(par, MISCINIT1) | 0 x01);
crt_outb(par, 0 x11, crt_inb(par, 0 x11) & 0 x7f); /* CRT unprotect */
banshee_make_room(par, 3 );
tdfx_outl(par, VGAINIT1, reg->vgainit1 & 0 x001FFFFF);
tdfx_outl(par, VIDPROCCFG, reg->vidcfg & ~0 x00000001);
#if 0
tdfx_outl(par, PLLCTRL1, reg->mempll);
tdfx_outl(par, PLLCTRL2, reg->gfxpll);
#endif
tdfx_outl(par, PLLCTRL0, reg->vidpll);
vga_outb(par, MISC_W, reg->misc[0 x00] | 0 x01);
for (i = 0 ; i < 5 ; i++)
seq_outb(par, i, reg->seq[i]);
for (i = 0 ; i < 25 ; i++)
crt_outb(par, i, reg->crt[i]);
for (i = 0 ; i < 9 ; i++)
gra_outb(par, i, reg->gra[i]);
for (i = 0 ; i < 21 ; i++)
att_outb(par, i, reg->att[i]);
crt_outb(par, 0 x1a, reg->ext[0 ]);
crt_outb(par, 0 x1b, reg->ext[1 ]);
vga_enable_palette(par);
vga_enable_video(par);
banshee_make_room(par, 9 );
tdfx_outl(par, VGAINIT0, reg->vgainit0);
tdfx_outl(par, DACMODE, reg->dacmode);
tdfx_outl(par, VIDDESKSTRIDE, reg->stride);
tdfx_outl(par, HWCURPATADDR, reg->curspataddr);
tdfx_outl(par, VIDSCREENSIZE, reg->screensize);
tdfx_outl(par, VIDDESKSTART, reg->startaddr);
tdfx_outl(par, VIDPROCCFG, reg->vidcfg);
tdfx_outl(par, VGAINIT1, reg->vgainit1);
tdfx_outl(par, MISCINIT0, reg->miscinit0);
banshee_make_room(par, 8 );
tdfx_outl(par, SRCBASE, reg->startaddr);
tdfx_outl(par, DSTBASE, reg->startaddr);
tdfx_outl(par, COMMANDEXTRA_2D, 0 );
tdfx_outl(par, CLIP0MIN, 0 );
tdfx_outl(par, CLIP0MAX, 0 x0fff0fff);
tdfx_outl(par, CLIP1MIN, 0 );
tdfx_outl(par, CLIP1MAX, 0 x0fff0fff);
tdfx_outl(par, SRCXY, 0 );
banshee_wait_idle(info);
}
static unsigned long do_lfb_size(struct tdfx_par *par, unsigned short dev_id)
{
u32 draminit0 = tdfx_inl(par, DRAMINIT0);
u32 draminit1 = tdfx_inl(par, DRAMINIT1);
u32 miscinit1;
int num_chips = (draminit0 & DRAMINIT0_SGRAM_NUM) ? 8 : 4 ;
int chip_size; /* in MB */
int has_sgram = draminit1 & DRAMINIT1_MEM_SDRAM;
if (dev_id < PCI_DEVICE_ID_3DFX_VOODOO5) {
/* Banshee/Voodoo3 */
chip_size = 2 ;
if (has_sgram && !(draminit0 & DRAMINIT0_SGRAM_TYPE))
chip_size = 1 ;
} else {
/* Voodoo4/5 */
has_sgram = 0 ;
chip_size = draminit0 & DRAMINIT0_SGRAM_TYPE_MASK;
chip_size = 1 << (chip_size >> DRAMINIT0_SGRAM_TYPE_SHIFT);
}
/* disable block writes for SDRAM */
miscinit1 = tdfx_inl(par, MISCINIT1);
miscinit1 |= has_sgram ? 0 : MISCINIT1_2DBLOCK_DIS;
miscinit1 |= MISCINIT1_CLUT_INV;
banshee_make_room(par, 1 );
tdfx_outl(par, MISCINIT1, miscinit1);
return num_chips * chip_size * 1024 l * 1024 ;
}
/* ------------------------------------------------------------------------- */
static int tdfxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
struct tdfx_par *par = info->par;
u32 lpitch;
if (var->bits_per_pixel != 8 && var->bits_per_pixel != 16 &&
var->bits_per_pixel != 24 && var->bits_per_pixel != 32 ) {
DPRINTK("depth not supported: %u\n" , var->bits_per_pixel);
return -EINVAL;
}
if (var->xres != var->xres_virtual)
var->xres_virtual = var->xres;
if (var->yres > var->yres_virtual)
var->yres_virtual = var->yres;
if (var->xoffset) {
DPRINTK("xoffset not supported\n" );
return -EINVAL;
}
var->yoffset = 0 ;
/*
* Banshee doesn ' t support interlace , but Voodoo4 / 5 and probably
* Voodoo3 do .
* no direct information about device id now ?
* use max_pixclock for this . . .
*/
if (((var->vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED) &&
(par->max_pixclock < VOODOO3_MAX_PIXCLOCK)) {
DPRINTK("interlace not supported\n" );
return -EINVAL;
}
if (info->monspecs.hfmax && info->monspecs.vfmax &&
info->monspecs.dclkmax && fb_validate_mode(var, info) < 0 ) {
DPRINTK("mode outside monitor's specs\n" );
return -EINVAL;
}
var->xres = (var->xres + 15 ) & ~15 ; /* could sometimes be 8 */
lpitch = var->xres * ((var->bits_per_pixel + 7 ) >> 3 );
if (var->xres < 320 || var->xres > 2048 ) {
DPRINTK("width not supported: %u\n" , var->xres);
return -EINVAL;
}
if (var->yres < 200 || var->yres > 2048 ) {
DPRINTK("height not supported: %u\n" , var->yres);
return -EINVAL;
}
if (lpitch * var->yres_virtual > info->fix.smem_len) {
var->yres_virtual = info->fix.smem_len / lpitch;
if (var->yres_virtual < var->yres) {
DPRINTK("no memory for screen (%ux%ux%u)\n" ,
var->xres, var->yres_virtual,
var->bits_per_pixel);
return -EINVAL;
}
}
if (PICOS2KHZ(var->pixclock) > par->max_pixclock) {
DPRINTK("pixclock too high (%ldKHz)\n" ,
PICOS2KHZ(var->pixclock));
return -EINVAL;
}
var->transp.offset = 0 ;
var->transp.length = 0 ;
switch (var->bits_per_pixel) {
case 8 :
var->red.length = 8 ;
var->red.offset = 0 ;
var->green = var->red;
var->blue = var->red;
break ;
case 16 :
var->red.offset = 11 ;
var->red.length = 5 ;
var->green.offset = 5 ;
var->green.length = 6 ;
var->blue.offset = 0 ;
var->blue.length = 5 ;
break ;
case 32 :
var->transp.offset = 24 ;
var->transp.length = 8 ;
fallthrough;
case 24 :
var->red.offset = 16 ;
var->green.offset = 8 ;
var->blue.offset = 0 ;
var->red.length = var->green.length = var->blue.length = 8 ;
break ;
}
var->width = -1 ;
var->height = -1 ;
var->accel_flags = FB_ACCELF_TEXT;
DPRINTK("Checking graphics mode at %dx%d depth %d\n" ,
var->xres, var->yres, var->bits_per_pixel);
return 0 ;
}
static int tdfxfb_set_par(struct fb_info *info)
{
struct tdfx_par *par = info->par;
u32 hdispend = info->var.xres;
u32 hsyncsta = hdispend + info->var.right_margin;
u32 hsyncend = hsyncsta + info->var.hsync_len;
u32 htotal = hsyncend + info->var.left_margin;
u32 hd, hs, he, ht, hbs, hbe;
u32 vd, vs, ve, vt, vbs, vbe;
struct banshee_reg reg;
int fout, freq;
u32 wd;
u32 cpp = (info->var.bits_per_pixel + 7 ) >> 3 ;
memset(®, 0 , sizeof (reg));
reg.vidcfg = VIDCFG_VIDPROC_ENABLE | VIDCFG_DESK_ENABLE |
VIDCFG_CURS_X11 |
((cpp - 1 ) << VIDCFG_PIXFMT_SHIFT) |
(cpp != 1 ? VIDCFG_CLUT_BYPASS : 0 );
/* PLL settings */
freq = PICOS2KHZ(info->var.pixclock);
reg.vidcfg &= ~VIDCFG_2X;
if (freq > par->max_pixclock / 2 ) {
freq = freq > par->max_pixclock ? par->max_pixclock : freq;
reg.dacmode |= DACMODE_2X;
reg.vidcfg |= VIDCFG_2X;
hdispend >>= 1 ;
hsyncsta >>= 1 ;
hsyncend >>= 1 ;
htotal >>= 1 ;
}
wd = (hdispend >> 3 ) - 1 ;
hd = wd;
hs = (hsyncsta >> 3 ) - 1 ;
he = (hsyncend >> 3 ) - 1 ;
ht = (htotal >> 3 ) - 1 ;
hbs = hd;
hbe = ht;
if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_DOUBLE) {
vd = (info->var.yres << 1 ) - 1 ;
vs = vd + (info->var.lower_margin << 1 );
ve = vs + (info->var.vsync_len << 1 );
vt = ve + (info->var.upper_margin << 1 ) - 1 ;
reg.screensize = info->var.xres | (info->var.yres << 13 );
reg.vidcfg |= VIDCFG_HALF_MODE;
reg.crt[0 x09] = 0 x80;
} else {
vd = info->var.yres - 1 ;
vs = vd + info->var.lower_margin;
ve = vs + info->var.vsync_len;
vt = ve + info->var.upper_margin - 1 ;
reg.screensize = info->var.xres | (info->var.yres << 12 );
reg.vidcfg &= ~VIDCFG_HALF_MODE;
}
vbs = vd;
vbe = vt;
/* this is all pretty standard VGA register stuffing */
reg.misc[0 x00] = 0 x0f |
(info->var.xres < 400 ? 0 xa0 :
info->var.xres < 480 ? 0 x60 :
info->var.xres < 768 ? 0 xe0 : 0 x20);
reg.gra[0 x05] = 0 x40;
reg.gra[0 x06] = 0 x05;
reg.gra[0 x07] = 0 x0f;
reg.gra[0 x08] = 0 xff;
reg.att[0 x00] = 0 x00;
reg.att[0 x01] = 0 x01;
reg.att[0 x02] = 0 x02;
reg.att[0 x03] = 0 x03;
reg.att[0 x04] = 0 x04;
reg.att[0 x05] = 0 x05;
reg.att[0 x06] = 0 x06;
reg.att[0 x07] = 0 x07;
reg.att[0 x08] = 0 x08;
reg.att[0 x09] = 0 x09;
reg.att[0 x0a] = 0 x0a;
reg.att[0 x0b] = 0 x0b;
reg.att[0 x0c] = 0 x0c;
reg.att[0 x0d] = 0 x0d;
reg.att[0 x0e] = 0 x0e;
reg.att[0 x0f] = 0 x0f;
reg.att[0 x10] = 0 x41;
reg.att[0 x12] = 0 x0f;
reg.seq[0 x00] = 0 x03;
reg.seq[0 x01] = 0 x01; /* fixme: clkdiv2? */
reg.seq[0 x02] = 0 x0f;
reg.seq[0 x03] = 0 x00;
reg.seq[0 x04] = 0 x0e;
reg.crt[0 x00] = ht - 4 ;
reg.crt[0 x01] = hd;
reg.crt[0 x02] = hbs;
reg.crt[0 x03] = 0 x80 | (hbe & 0 x1f);
reg.crt[0 x04] = hs;
reg.crt[0 x05] = ((hbe & 0 x20) << 2 ) | (he & 0 x1f);
reg.crt[0 x06] = vt;
reg.crt[0 x07] = ((vs & 0 x200) >> 2 ) |
((vd & 0 x200) >> 3 ) |
((vt & 0 x200) >> 4 ) | 0 x10 |
((vbs & 0 x100) >> 5 ) |
((vs & 0 x100) >> 6 ) |
((vd & 0 x100) >> 7 ) |
((vt & 0 x100) >> 8 );
reg.crt[0 x09] |= 0 x40 | ((vbs & 0 x200) >> 4 );
reg.crt[0 x10] = vs;
reg.crt[0 x11] = (ve & 0 x0f) | 0 x20;
reg.crt[0 x12] = vd;
reg.crt[0 x13] = wd;
reg.crt[0 x15] = vbs;
reg.crt[0 x16] = vbe + 1 ;
reg.crt[0 x17] = 0 xc3;
reg.crt[0 x18] = 0 xff;
/* Banshee's nonvga stuff */
reg.ext[0 x00] = (((ht & 0 x100) >> 8 ) |
((hd & 0 x100) >> 6 ) |
((hbs & 0 x100) >> 4 ) |
((hbe & 0 x40) >> 1 ) |
((hs & 0 x100) >> 2 ) |
((he & 0 x20) << 2 ));
reg.ext[0 x01] = (((vt & 0 x400) >> 10 ) |
((vd & 0 x400) >> 8 ) |
((vbs & 0 x400) >> 6 ) |
((vbe & 0 x400) >> 4 ));
reg.vgainit0 = VGAINIT0_8BIT_DAC |
VGAINIT0_EXT_ENABLE |
VGAINIT0_WAKEUP_3C3 |
VGAINIT0_ALT_READBACK |
VGAINIT0_EXTSHIFTOUT;
reg.vgainit1 = tdfx_inl(par, VGAINIT1) & 0 x1fffff;
if (hwcursor)
reg.curspataddr = info->fix.smem_len;
reg.cursloc = 0 ;
reg.cursc0 = 0 ;
reg.cursc1 = 0 xffffff;
reg.stride = info->var.xres * cpp;
reg.startaddr = info->var.yoffset * reg.stride
+ info->var.xoffset * cpp;
reg.vidpll = do_calc_pll(freq, &fout);
#if 0
reg.mempll = do_calc_pll(..., &fout);
reg.gfxpll = do_calc_pll(..., &fout);
#endif
if ((info->var.vmode & FB_VMODE_MASK) == FB_VMODE_INTERLACED)
reg.vidcfg |= VIDCFG_INTERLACE;
reg.miscinit0 = tdfx_inl(par, MISCINIT0);
#if defined (__BIG_ENDIAN)
switch (info->var.bits_per_pixel) {
case 8 :
case 24 :
reg.miscinit0 &= ~(1 << 30 );
reg.miscinit0 &= ~(1 << 31 );
break ;
case 16 :
reg.miscinit0 |= (1 << 30 );
reg.miscinit0 |= (1 << 31 );
break ;
case 32 :
reg.miscinit0 |= (1 << 30 );
reg.miscinit0 &= ~(1 << 31 );
break ;
}
#endif
do_write_regs(info, ®);
/* Now change fb_fix_screeninfo according to changes in par */
info->fix.line_length = reg.stride;
info->fix.visual = (info->var.bits_per_pixel == 8 )
? FB_VISUAL_PSEUDOCOLOR
: FB_VISUAL_TRUECOLOR;
DPRINTK("Graphics mode is now set at %dx%d depth %d\n" ,
info->var.xres, info->var.yres, info->var.bits_per_pixel);
return 0 ;
}
/* A handy macro shamelessly pinched from matroxfb */
#define CNVT_TOHW(val, width) ((((val) << (width)) + 0 x7FFF - (val)) >> 16 )
static int tdfxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
unsigned blue, unsigned transp,
struct fb_info *info)
{
struct tdfx_par *par = info->par;
u32 rgbcol;
if (regno >= info->cmap.len || regno > 255 )
return 1 ;
/* grayscale works only partially under directcolor */
if (info->var.grayscale) {
/* grayscale = 0.30*R + 0.59*G + 0.11*B */
blue = (red * 77 + green * 151 + blue * 28 ) >> 8 ;
green = blue;
red = blue;
}
switch (info->fix.visual) {
case FB_VISUAL_PSEUDOCOLOR:
rgbcol = (((u32)red & 0 xff00) << 8 ) |
(((u32)green & 0 xff00) << 0 ) |
(((u32)blue & 0 xff00) >> 8 );
do_setpalentry(par, regno, rgbcol);
break ;
/* Truecolor has no hardware color palettes. */
case FB_VISUAL_TRUECOLOR:
if (regno < 16 ) {
rgbcol = (CNVT_TOHW(red, info->var.red.length) <<
info->var.red.offset) |
(CNVT_TOHW(green, info->var.green.length) <<
info->var.green.offset) |
(CNVT_TOHW(blue, info->var.blue.length) <<
info->var.blue.offset) |
(CNVT_TOHW(transp, info->var.transp.length) <<
info->var.transp.offset);
par->palette[regno] = rgbcol;
}
break ;
default :
DPRINTK("bad depth %u\n" , info->var.bits_per_pixel);
break ;
}
return 0 ;
}
/* 0 unblank, 1 blank, 2 no vsync, 3 no hsync, 4 off */
static int tdfxfb_blank(int blank, struct fb_info *info)
{
struct tdfx_par *par = info->par;
int vgablank = 1 ;
u32 dacmode = tdfx_inl(par, DACMODE);
dacmode &= ~(BIT(1 ) | BIT(3 ));
switch (blank) {
case FB_BLANK_UNBLANK: /* Screen: On; HSync: On, VSync: On */
vgablank = 0 ;
break ;
case FB_BLANK_NORMAL: /* Screen: Off; HSync: On, VSync: On */
break ;
case FB_BLANK_VSYNC_SUSPEND: /* Screen: Off; HSync: On, VSync: Off */
dacmode |= BIT(3 );
break ;
case FB_BLANK_HSYNC_SUSPEND: /* Screen: Off; HSync: Off, VSync: On */
dacmode |= BIT(1 );
break ;
case FB_BLANK_POWERDOWN: /* Screen: Off; HSync: Off, VSync: Off */
dacmode |= BIT(1 ) | BIT(3 );
break ;
}
banshee_make_room(par, 1 );
tdfx_outl(par, DACMODE, dacmode);
if (vgablank)
vga_disable_video(par);
else
vga_enable_video(par);
return 0 ;
}
/*
* Set the starting position of the visible screen to var - > yoffset
*/
static int tdfxfb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct tdfx_par *par = info->par;
u32 addr = var->yoffset * info->fix.line_length;
if (nopan || var->xoffset)
return -EINVAL;
banshee_make_room(par, 1 );
tdfx_outl(par, VIDDESKSTART, addr);
return 0 ;
}
#ifdef CONFIG_FB_3DFX_ACCEL
/*
* FillRect 2 D command ( solidfill or invert ( via ROP_XOR ) )
*/
static void tdfxfb_fillrect(struct fb_info *info,
const struct fb_fillrect *rect)
{
struct tdfx_par *par = info->par;
u32 bpp = info->var.bits_per_pixel;
u32 stride = info->fix.line_length;
u32 fmt = stride | ((bpp + ((bpp == 8 ) ? 0 : 8 )) << 13 );
int tdfx_rop;
u32 dx = rect->dx;
u32 dy = rect->dy;
u32 dstbase = 0 ;
if (rect->rop == ROP_COPY)
tdfx_rop = TDFX_ROP_COPY;
else
tdfx_rop = TDFX_ROP_XOR;
/* assume always rect->height < 4096 */
if (dy + rect->height > 4095 ) {
dstbase = stride * dy;
dy = 0 ;
}
/* assume always rect->width < 4096 */
if (dx + rect->width > 4095 ) {
dstbase += dx * bpp >> 3 ;
dx = 0 ;
}
banshee_make_room(par, 6 );
tdfx_outl(par, DSTFORMAT, fmt);
if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
tdfx_outl(par, COLORFORE, rect->color);
} else { /* FB_VISUAL_TRUECOLOR */
tdfx_outl(par, COLORFORE, par->palette[rect->color]);
}
tdfx_outl(par, COMMAND_2D, COMMAND_2D_FILLRECT | (tdfx_rop << 24 ));
tdfx_outl(par, DSTBASE, dstbase);
tdfx_outl(par, DSTSIZE, rect->width | (rect->height << 16 ));
tdfx_outl(par, LAUNCH_2D, dx | (dy << 16 ));
}
/*
* Screen - to - Screen BitBlt 2 D command ( for the bmove fb op . )
*/
static void tdfxfb_copyarea(struct fb_info *info,
const struct fb_copyarea *area)
{
struct tdfx_par *par = info->par;
u32 sx = area->sx, sy = area->sy, dx = area->dx, dy = area->dy;
u32 bpp = info->var.bits_per_pixel;
u32 stride = info->fix.line_length;
u32 blitcmd = COMMAND_2D_S2S_BITBLT | (TDFX_ROP_COPY << 24 );
u32 fmt = stride | ((bpp + ((bpp == 8 ) ? 0 : 8 )) << 13 );
u32 dstbase = 0 ;
u32 srcbase = 0 ;
/* assume always area->height < 4096 */
if (sy + area->height > 4095 ) {
srcbase = stride * sy;
sy = 0 ;
}
/* assume always area->width < 4096 */
if (sx + area->width > 4095 ) {
srcbase += sx * bpp >> 3 ;
sx = 0 ;
}
/* assume always area->height < 4096 */
if (dy + area->height > 4095 ) {
dstbase = stride * dy;
dy = 0 ;
}
/* assume always area->width < 4096 */
if (dx + area->width > 4095 ) {
dstbase += dx * bpp >> 3 ;
dx = 0 ;
}
if (area->sx <= area->dx) {
/* -X */
blitcmd |= BIT(14 );
sx += area->width - 1 ;
dx += area->width - 1 ;
}
if (area->sy <= area->dy) {
/* -Y */
blitcmd |= BIT(15 );
sy += area->height - 1 ;
dy += area->height - 1 ;
}
banshee_make_room(par, 8 );
tdfx_outl(par, SRCFORMAT, fmt);
tdfx_outl(par, DSTFORMAT, fmt);
tdfx_outl(par, COMMAND_2D, blitcmd);
tdfx_outl(par, DSTSIZE, area->width | (area->height << 16 ));
tdfx_outl(par, DSTXY, dx | (dy << 16 ));
tdfx_outl(par, SRCBASE, srcbase);
tdfx_outl(par, DSTBASE, dstbase);
tdfx_outl(par, LAUNCH_2D, sx | (sy << 16 ));
}
static void tdfxfb_imageblit(struct fb_info *info, const struct fb_image *image)
{
struct tdfx_par *par = info->par;
int size = image->height * ((image->width * image->depth + 7 ) >> 3 );
int fifo_free;
int i, stride = info->fix.line_length;
u32 bpp = info->var.bits_per_pixel;
u32 dstfmt = stride | ((bpp + ((bpp == 8 ) ? 0 : 8 )) << 13 );
u8 *chardata = (u8 *) image->data;
u32 srcfmt;
u32 dx = image->dx;
u32 dy = image->dy;
u32 dstbase = 0 ;
if (image->depth != 1 ) {
#ifdef BROKEN_CODE
banshee_make_room(par, 6 + ((size + 3 ) >> 2 ));
srcfmt = stride | ((bpp + ((bpp == 8 ) ? 0 : 8 )) << 13 ) |
0 x400000;
#else
cfb_imageblit(info, image);
#endif
return ;
}
banshee_make_room(par, 9 );
switch (info->fix.visual) {
case FB_VISUAL_PSEUDOCOLOR:
tdfx_outl(par, COLORFORE, image->fg_color);
tdfx_outl(par, COLORBACK, image->bg_color);
break ;
case FB_VISUAL_TRUECOLOR:
default :
tdfx_outl(par, COLORFORE,
par->palette[image->fg_color]);
tdfx_outl(par, COLORBACK,
par->palette[image->bg_color]);
}
#ifdef __BIG_ENDIAN
srcfmt = 0 x400000 | BIT(20 );
#else
srcfmt = 0 x400000;
#endif
/* assume always image->height < 4096 */
if (dy + image->height > 4095 ) {
dstbase = stride * dy;
dy = 0 ;
}
/* assume always image->width < 4096 */
if (dx + image->width > 4095 ) {
dstbase += dx * bpp >> 3 ;
dx = 0 ;
}
tdfx_outl(par, DSTBASE, dstbase);
tdfx_outl(par, SRCXY, 0 );
tdfx_outl(par, DSTXY, dx | (dy << 16 ));
tdfx_outl(par, COMMAND_2D,
COMMAND_2D_H2S_BITBLT | (TDFX_ROP_COPY << 24 ));
tdfx_outl(par, SRCFORMAT, srcfmt);
tdfx_outl(par, DSTFORMAT, dstfmt);
tdfx_outl(par, DSTSIZE, image->width | (image->height << 16 ));
/* A count of how many free FIFO entries we've requested.
* When this goes negative, we need to request more. */
fifo_free = 0 ;
/* Send four bytes at a time of data */
for (i = (size >> 2 ); i > 0 ; i--) {
if (--fifo_free < 0 ) {
fifo_free = 31 ;
banshee_make_room(par, fifo_free);
}
tdfx_outl(par, LAUNCH_2D, *(u32 *)chardata);
chardata += 4 ;
}
/* Send the leftovers now */
banshee_make_room(par, 3 );
switch (size % 4 ) {
case 0 :
break ;
case 1 :
tdfx_outl(par, LAUNCH_2D, *chardata);
break ;
case 2 :
tdfx_outl(par, LAUNCH_2D, *(u16 *)chardata);
break ;
case 3 :
tdfx_outl(par, LAUNCH_2D,
*(u16 *)chardata | (chardata[3 ] << 24 ));
break ;
}
}
#endif /* CONFIG_FB_3DFX_ACCEL */
static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
{
struct tdfx_par *par = info->par;
u32 vidcfg;
if (!hwcursor)
return -EINVAL; /* just to force soft_cursor() call */
/* Too large of a cursor or wrong bpp :-( */
if (cursor->image.width > 64 ||
cursor->image.height > 64 ||
cursor->image.depth > 1 )
return -EINVAL;
vidcfg = tdfx_inl(par, VIDPROCCFG);
if (cursor->enable)
tdfx_outl(par, VIDPROCCFG, vidcfg | VIDCFG_HWCURSOR_ENABLE);
else
tdfx_outl(par, VIDPROCCFG, vidcfg & ~VIDCFG_HWCURSOR_ENABLE);
/*
* If the cursor is not be changed this means either we want the
* current cursor state ( if enable is set ) or we want to query what
* we can do with the cursor ( if enable is not set )
*/
if (!cursor->set)
return 0 ;
/* fix cursor color - XFree86 forgets to restore it properly */
if (cursor->set & FB_CUR_SETCMAP) {
struct fb_cmap cmap = info->cmap;
u32 bg_idx = cursor->image.bg_color;
u32 fg_idx = cursor->image.fg_color;
unsigned long bg_color, fg_color;
fg_color = (((u32)cmap.red[fg_idx] & 0 xff00) << 8 ) |
(((u32)cmap.green[fg_idx] & 0 xff00) << 0 ) |
(((u32)cmap.blue[fg_idx] & 0 xff00) >> 8 );
bg_color = (((u32)cmap.red[bg_idx] & 0 xff00) << 8 ) |
(((u32)cmap.green[bg_idx] & 0 xff00) << 0 ) |
(((u32)cmap.blue[bg_idx] & 0 xff00) >> 8 );
banshee_make_room(par, 2 );
tdfx_outl(par, HWCURC0, bg_color);
tdfx_outl(par, HWCURC1, fg_color);
}
if (cursor->set & FB_CUR_SETPOS) {
int x = cursor->image.dx;
int y = cursor->image.dy - info->var.yoffset;
x += 63 ;
y += 63 ;
banshee_make_room(par, 1 );
tdfx_outl(par, HWCURLOC, (y << 16 ) + x);
}
if (cursor->set & (FB_CUR_SETIMAGE | FB_CUR_SETSHAPE)) {
/*
* Voodoo 3 and above cards use 2 monochrome cursor patterns .
* The reason is so the card can fetch 8 words at a time
* and are stored on chip for use for the next 8 scanlines .
* This reduces the number of times for access to draw the
* cursor for each screen refresh .
* Each pattern is a bitmap of 64 bit wide and 64 bit high
* ( total of 8192 bits or 1024 bytes ) . The two patterns are
* stored in such a way that pattern 0 always resides in the
* lower half ( least significant 64 bits ) of a 128 bit word
* and pattern 1 the upper half . If you examine the data of
* the cursor image the graphics card uses then from the
* beginning you see line one of pattern 0 , line one of
* pattern 1 , line two of pattern 0 , line two of pattern 1 ,
* etc etc . The linear stride for the cursor is always 16 bytes
* ( 128 bits ) which is the maximum cursor width times two for
* the two monochrome patterns .
*/
u8 __iomem *cursorbase = info->screen_base + info->fix.smem_len;
u8 *bitmap = (u8 *)cursor->image.data;
u8 *mask = (u8 *)cursor->mask;
int i;
fb_memset_io(cursorbase, 0 , 1024 );
for (i = 0 ; i < cursor->image.height; i++) {
int h = 0 ;
int j = (cursor->image.width + 7 ) >> 3 ;
for (; j > 0 ; j--) {
u8 data = *mask ^ *bitmap;
if (cursor->rop == ROP_COPY)
data = *mask & *bitmap;
/* Pattern 0. Copy the cursor mask to it */
fb_writeb(*mask, cursorbase + h);
mask++;
/* Pattern 1. Copy the cursor bitmap to it */
fb_writeb(data, cursorbase + h + 8 );
bitmap++;
h++;
}
cursorbase += 16 ;
}
}
return 0 ;
}
static const struct fb_ops tdfxfb_ops = {
.owner = THIS_MODULE,
__FB_DEFAULT_IOMEM_OPS_RDWR,
.fb_check_var = tdfxfb_check_var,
.fb_set_par = tdfxfb_set_par,
.fb_setcolreg = tdfxfb_setcolreg,
.fb_blank = tdfxfb_blank,
.fb_pan_display = tdfxfb_pan_display,
.fb_sync = banshee_wait_idle,
.fb_cursor = tdfxfb_cursor,
#ifdef CONFIG_FB_3DFX_ACCEL
.fb_fillrect = tdfxfb_fillrect,
.fb_copyarea = tdfxfb_copyarea,
.fb_imageblit = tdfxfb_imageblit,
#else
__FB_DEFAULT_IOMEM_OPS_DRAW,
#endif
__FB_DEFAULT_IOMEM_OPS_MMAP,
};
#ifdef CONFIG_FB_3DFX_I2C
/* The voo GPIO registers don't have individual masks for each bit
so we always have to read before writing. */
static void tdfxfb_i2c_setscl(void *data, int val)
{
struct tdfxfb_i2c_chan *chan = data;
struct tdfx_par *par = chan->par;
unsigned int r;
r = tdfx_inl(par, VIDSERPARPORT);
if (val)
r |= I2C_SCL_OUT;
else
r &= ~I2C_SCL_OUT;
tdfx_outl(par, VIDSERPARPORT, r);
tdfx_inl(par, VIDSERPARPORT); /* flush posted write */
}
static void tdfxfb_i2c_setsda(void *data, int val)
{
struct tdfxfb_i2c_chan *chan = data;
struct tdfx_par *par = chan->par;
unsigned int r;
r = tdfx_inl(par, VIDSERPARPORT);
if (val)
r |= I2C_SDA_OUT;
else
r &= ~I2C_SDA_OUT;
tdfx_outl(par, VIDSERPARPORT, r);
tdfx_inl(par, VIDSERPARPORT); /* flush posted write */
}
/* The GPIO pins are open drain, so the pins always remain outputs.
We rely on the i2c - algo - bit routines to set the pins high before
reading the input from other chips. */
static int tdfxfb_i2c_getscl(void *data)
{
struct tdfxfb_i2c_chan *chan = data;
struct tdfx_par *par = chan->par;
return (0 != (tdfx_inl(par, VIDSERPARPORT) & I2C_SCL_IN));
}
static int tdfxfb_i2c_getsda(void *data)
{
struct tdfxfb_i2c_chan *chan = data;
struct tdfx_par *par = chan->par;
return (0 != (tdfx_inl(par, VIDSERPARPORT) & I2C_SDA_IN));
}
static void tdfxfb_ddc_setscl(void *data, int val)
{
struct tdfxfb_i2c_chan *chan = data;
struct tdfx_par *par = chan->par;
unsigned int r;
r = tdfx_inl(par, VIDSERPARPORT);
if (val)
r |= DDC_SCL_OUT;
else
r &= ~DDC_SCL_OUT;
tdfx_outl(par, VIDSERPARPORT, r);
tdfx_inl(par, VIDSERPARPORT); /* flush posted write */
}
static void tdfxfb_ddc_setsda(void *data, int val)
{
struct tdfxfb_i2c_chan *chan = data;
struct tdfx_par *par = chan->par;
unsigned int r;
r = tdfx_inl(par, VIDSERPARPORT);
if (val)
r |= DDC_SDA_OUT;
else
r &= ~DDC_SDA_OUT;
tdfx_outl(par, VIDSERPARPORT, r);
tdfx_inl(par, VIDSERPARPORT); /* flush posted write */
}
static int tdfxfb_ddc_getscl(void *data)
{
struct tdfxfb_i2c_chan *chan = data;
struct tdfx_par *par = chan->par;
return (0 != (tdfx_inl(par, VIDSERPARPORT) & DDC_SCL_IN));
}
static int tdfxfb_ddc_getsda(void *data)
{
struct tdfxfb_i2c_chan *chan = data;
struct tdfx_par *par = chan->par;
return (0 != (tdfx_inl(par, VIDSERPARPORT) & DDC_SDA_IN));
}
static int tdfxfb_setup_ddc_bus(struct tdfxfb_i2c_chan *chan, const char *name,
struct device *dev)
{
int rc;
strscpy(chan->adapter.name, name, sizeof (chan->adapter.name));
chan->adapter.owner = THIS_MODULE;
chan->adapter.algo_data = &chan->algo;
chan->adapter.dev.parent = dev;
chan->algo.setsda = tdfxfb_ddc_setsda;
chan->algo.setscl = tdfxfb_ddc_setscl;
chan->algo.getsda = tdfxfb_ddc_getsda;
chan->algo.getscl = tdfxfb_ddc_getscl;
chan->algo.udelay = 10 ;
chan->algo.timeout = msecs_to_jiffies(500 );
chan->algo.data = chan;
i2c_set_adapdata(&chan->adapter, chan);
rc = i2c_bit_add_bus(&chan->adapter);
if (rc == 0 )
DPRINTK("I2C bus %s registered.\n" , name);
else
chan->par = NULL;
return rc;
}
static int tdfxfb_setup_i2c_bus(struct tdfxfb_i2c_chan *chan, const char *name,
struct device *dev)
{
int rc;
strscpy(chan->adapter.name, name, sizeof (chan->adapter.name));
chan->adapter.owner = THIS_MODULE;
chan->adapter.algo_data = &chan->algo;
chan->adapter.dev.parent = dev;
chan->algo.setsda = tdfxfb_i2c_setsda;
chan->algo.setscl = tdfxfb_i2c_setscl;
chan->algo.getsda = tdfxfb_i2c_getsda;
chan->algo.getscl = tdfxfb_i2c_getscl;
chan->algo.udelay = 10 ;
chan->algo.timeout = msecs_to_jiffies(500 );
chan->algo.data = chan;
i2c_set_adapdata(&chan->adapter, chan);
rc = i2c_bit_add_bus(&chan->adapter);
if (rc == 0 )
DPRINTK("I2C bus %s registered.\n" , name);
else
chan->par = NULL;
return rc;
}
static void tdfxfb_create_i2c_busses(struct fb_info *info)
{
struct tdfx_par *par = info->par;
tdfx_outl(par, VIDINFORMAT, 0 x8160);
tdfx_outl(par, VIDSERPARPORT, 0 xcffc0020);
par->chan[0 ].par = par;
par->chan[1 ].par = par;
tdfxfb_setup_ddc_bus(&par->chan[0 ], "Voodoo3-DDC" , info->device);
tdfxfb_setup_i2c_bus(&par->chan[1 ], "Voodoo3-I2C" , info->device);
}
static void tdfxfb_delete_i2c_busses(struct tdfx_par *par)
{
if (par->chan[0 ].par)
i2c_del_adapter(&par->chan[0 ].adapter);
par->chan[0 ].par = NULL;
if (par->chan[1 ].par)
i2c_del_adapter(&par->chan[1 ].adapter);
par->chan[1 ].par = NULL;
}
static int tdfxfb_probe_i2c_connector(struct tdfx_par *par,
struct fb_monspecs *specs)
{
u8 *edid = NULL;
DPRINTK("Probe DDC Bus\n" );
if (par->chan[0 ].par)
edid = fb_ddc_read(&par->chan[0 ].adapter);
if (edid) {
fb_edid_to_monspecs(edid, specs);
kfree(edid);
return 0 ;
}
return 1 ;
}
#endif /* CONFIG_FB_3DFX_I2C */
/**
* tdfxfb_probe - Device Initializiation
*
* @ pdev : PCI Device to initialize
* @ id : PCI Device ID
*
* Initializes and allocates resources for PCI device @ pdev .
*
*/
static int tdfxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct tdfx_par *default_par;
struct fb_info *info;
int err, lpitch;
struct fb_monspecs *specs;
bool found;
err = aperture_remove_conflicting_pci_devices(pdev, "tdfxfb" );
if (err)
return err;
err = pci_enable_device(pdev);
if (err) {
printk(KERN_ERR "tdfxfb: Can't enable pdev: %d\n" , err);
return err;
}
info = framebuffer_alloc(sizeof (struct tdfx_par), &pdev->dev);
if (!info)
return -ENOMEM;
default_par = info->par;
info->fix = tdfx_fix;
/* Configure the default fb_fix_screeninfo first */
switch (pdev->device) {
case PCI_DEVICE_ID_3DFX_BANSHEE:
strcpy(info->fix.id, "3Dfx Banshee" );
default_par->max_pixclock = BANSHEE_MAX_PIXCLOCK;
break ;
case PCI_DEVICE_ID_3DFX_VOODOO3:
strcpy(info->fix.id, "3Dfx Voodoo3" );
default_par->max_pixclock = VOODOO3_MAX_PIXCLOCK;
break ;
case PCI_DEVICE_ID_3DFX_VOODOO5:
strcpy(info->fix.id, "3Dfx Voodoo5" );
default_par->max_pixclock = VOODOO5_MAX_PIXCLOCK;
break ;
}
info->fix.mmio_start = pci_resource_start(pdev, 0 );
info->fix.mmio_len = pci_resource_len(pdev, 0 );
if (!request_mem_region(info->fix.mmio_start, info->fix.mmio_len,
"tdfx regbase" )) {
printk(KERN_ERR "tdfxfb: Can't reserve regbase\n" );
goto out_err;
}
default_par->regbase_virt =
ioremap(info->fix.mmio_start, info->fix.mmio_len);
if (!default_par->regbase_virt) {
printk(KERN_ERR "fb: Can't remap %s register area.\n" ,
info->fix.id);
goto out_err_regbase;
}
info->fix.smem_start = pci_resource_start(pdev, 1 );
info->fix.smem_len = do_lfb_size(default_par, pdev->device);
if (!info->fix.smem_len) {
printk(KERN_ERR "fb: Can't count %s memory.\n" , info->fix.id);
goto out_err_regbase;
}
if (!request_mem_region(info->fix.smem_start,
pci_resource_len(pdev, 1 ), "tdfx smem" )) {
printk(KERN_ERR "tdfxfb: Can't reserve smem\n" );
goto out_err_regbase;
}
info->screen_base = ioremap_wc(info->fix.smem_start,
info->fix.smem_len);
if (!info->screen_base) {
printk(KERN_ERR "fb: Can't remap %s framebuffer.\n" ,
info->fix.id);
goto out_err_screenbase;
}
default_par->iobase = pci_resource_start(pdev, 2 );
if (!request_region(pci_resource_start(pdev, 2 ),
pci_resource_len(pdev, 2 ), "tdfx iobase" )) {
printk(KERN_ERR "tdfxfb: Can't reserve iobase\n" );
goto out_err_screenbase;
}
printk(KERN_INFO "fb: %s memory = %dK\n" , info->fix.id,
info->fix.smem_len >> 10 );
if (!nomtrr)
default_par->wc_cookie= arch_phys_wc_add(info->fix.smem_start,
info->fix.smem_len);
info->fix.ypanstep = nopan ? 0 : 1 ;
info->fix.ywrapstep = nowrap ? 0 : 1 ;
info->fbops = &tdfxfb_ops;
info->pseudo_palette = default_par->palette;
info->flags = FBINFO_HWACCEL_YPAN;
#ifdef CONFIG_FB_3DFX_ACCEL
info->flags |= FBINFO_HWACCEL_FILLRECT |
FBINFO_HWACCEL_COPYAREA |
FBINFO_HWACCEL_IMAGEBLIT |
FBINFO_READS_FAST;
#endif
/* reserve 8192 bits for cursor */
/* the 2.4 driver says PAGE_MASK boundary is not enough for Voodoo4 */
if (hwcursor)
info->fix.smem_len = (info->fix.smem_len - 1024 ) &
(PAGE_MASK << 1 );
specs = &info->monspecs;
found = false ;
info->var.bits_per_pixel = 8 ;
#ifdef CONFIG_FB_3DFX_I2C
tdfxfb_create_i2c_busses(info);
err = tdfxfb_probe_i2c_connector(default_par, specs);
if (!err) {
if (specs->modedb == NULL)
DPRINTK("Unable to get Mode Database\n" );
else {
const struct fb_videomode *m;
fb_videomode_to_modelist(specs->modedb,
specs->modedb_len,
&info->modelist);
m = fb_find_best_display(specs, &info->modelist);
if (m) {
fb_videomode_to_var(&info->var, m);
/* fill all other info->var's fields */
if (tdfxfb_check_var(&info->var, info) < 0 )
info->var = tdfx_var;
else
found = true ;
}
}
}
#endif
if (!mode_option && !found)
mode_option = "640x480@60" ;
if (mode_option) {
err = fb_find_mode(&info->var, info, mode_option,
specs->modedb, specs->modedb_len,
NULL, info->var.bits_per_pixel);
if (!err || err == 4 )
info->var = tdfx_var;
}
if (found) {
fb_destroy_modedb(specs->modedb);
specs->modedb = NULL;
}
/* maximize virtual vertical length */
lpitch = info->var.xres_virtual * ((info->var.bits_per_pixel + 7 ) >> 3 );
info->var.yres_virtual = info->fix.smem_len / lpitch;
if (info->var.yres_virtual < info->var.yres)
goto out_err_iobase;
if (fb_alloc_cmap(&info->cmap, 256 , 0 ) < 0 ) {
printk(KERN_ERR "tdfxfb: Can't allocate color map\n" );
goto out_err_iobase;
}
if (register_framebuffer(info) < 0 ) {
printk(KERN_ERR "tdfxfb: can't register framebuffer\n" );
fb_dealloc_cmap(&info->cmap);
goto out_err_iobase;
}
/*
* Our driver data
*/
pci_set_drvdata(pdev, info);
return 0 ;
out_err_iobase:
#ifdef CONFIG_FB_3DFX_I2C
tdfxfb_delete_i2c_busses(default_par);
#endif
arch_phys_wc_del(default_par->wc_cookie);
release_region(pci_resource_start(pdev, 2 ),
pci_resource_len(pdev, 2 ));
out_err_screenbase:
if (info->screen_base)
iounmap(info->screen_base);
release_mem_region(info->fix.smem_start, pci_resource_len(pdev, 1 ));
out_err_regbase:
/*
* Cleanup after anything that was remapped / allocated .
*/
if (default_par->regbase_virt)
iounmap(default_par->regbase_virt);
release_mem_region(info->fix.mmio_start, info->fix.mmio_len);
out_err:
framebuffer_release(info);
return -ENXIO;
}
#ifndef MODULE
static void __init tdfxfb_setup(char *options)
{
char *this_opt;
if (!options || !*options)
return ;
while ((this_opt = strsep(&options, "," )) != NULL) {
if (!*this_opt)
continue ;
if (!strcmp(this_opt, "nopan" )) {
nopan = 1 ;
} else if (!strcmp(this_opt, "nowrap" )) {
nowrap = 1 ;
} else if (!strncmp(this_opt, "hwcursor=" , 9 )) {
hwcursor = simple_strtoul(this_opt + 9 , NULL, 0 );
} else if (!strncmp(this_opt, "nomtrr" , 6 )) {
nomtrr = 1 ;
} else {
mode_option = this_opt;
}
}
}
#endif
/**
* tdfxfb_remove - Device removal
*
* @ pdev : PCI Device to cleanup
*
* Releases all resources allocated during the course of the driver ' s
* lifetime for the PCI device @ pdev .
*
*/
static void tdfxfb_remove(struct pci_dev *pdev)
{
struct fb_info *info = pci_get_drvdata(pdev);
struct tdfx_par *par = info->par;
unregister_framebuffer(info);
#ifdef CONFIG_FB_3DFX_I2C
tdfxfb_delete_i2c_busses(par);
#endif
arch_phys_wc_del(par->wc_cookie);
iounmap(par->regbase_virt);
iounmap(info->screen_base);
/* Clean up after reserved regions */
release_region(pci_resource_start(pdev, 2 ),
pci_resource_len(pdev, 2 ));
release_mem_region(pci_resource_start(pdev, 1 ),
pci_resource_len(pdev, 1 ));
release_mem_region(pci_resource_start(pdev, 0 ),
pci_resource_len(pdev, 0 ));
fb_dealloc_cmap(&info->cmap);
framebuffer_release(info);
}
static int __init tdfxfb_init(void )
{
#ifndef MODULE
char *option = NULL;
#endif
if (fb_modesetting_disabled("tdfxfb" ))
return -ENODEV;
#ifndef MODULE
if (fb_get_options("tdfxfb" , &option))
return -ENODEV;
tdfxfb_setup(option);
#endif
return pci_register_driver(&tdfxfb_driver);
}
static void __exit tdfxfb_exit(void )
{
pci_unregister_driver(&tdfxfb_driver);
}
MODULE_AUTHOR("Hannu Mallat <hmallat@cc.hut.fi>" );
MODULE_DESCRIPTION("3Dfx framebuffer device driver" );
MODULE_LICENSE("GPL" );
module_param(hwcursor, int , 0644 );
MODULE_PARM_DESC(hwcursor, "Enable hardware cursor "
"(1=enable, 0=disable, default=1)" );
module_param(mode_option, charp, 0 );
MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'" );
module_param(nomtrr, bool , 0 );
MODULE_PARM_DESC(nomtrr, "Disable MTRR support (default: enabled)" );
module_init(tdfxfb_init);
module_exit(tdfxfb_exit);
Messung V0.5 in Prozent C=96 H=92 G=93
¤ Dauer der Verarbeitung: 0.41 Sekunden
(vorverarbeitet am 2026-10-11)
¤
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