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linux-zen-server/drivers/video/fbdev/tridentfb.c

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Initial commit
2023-08-30 17:53:23 +02:00
// SPDX-License-Identifier: GPL-2.0-only
/*
* 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/aperture.h>
#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>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.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... */
bool ddc_registered;
struct i2c_adapter ddc_adapter;
struct i2c_algo_bit_data ddc_algo;
};
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;
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 id)
{
return is_oldclock(id) ||
(id == PROVIDIA9685) ||
(id == CYBER9382) ||
(id == CYBER9385);
}
static inline int is_blade(int id)
{
return (id == BLADE3D) ||
(id == CYBERBLADEE4) ||
(id == CYBERBLADEi7) ||
(id == CYBERBLADEi7D) ||
(id == CYBERBLADEi1) ||
(id == CYBERBLADEi1D) ||
(id == CYBERBLADEAi1) ||
(id == CYBERBLADEAi1D);
}
static inline int is_xp(int id)
{
return (id == CYBERBLADEXPAi1) ||
(id == CYBERBLADEXPm8) ||
(id == CYBERBLADEXPm16);
}
static inline int is3Dchip(int id)
{
return is_blade(id) || is_xp(id) ||
(id == CYBER9397) || (id == CYBER9397DVD) ||
(id == CYBER9520) || (id == CYBER9525DVD) ||
(id == IMAGE975) || (id == IMAGE985);
}
static inline int iscyber(int id)
{
switch (id) {
case CYBER9388:
case CYBER9382:
case CYBER9385:
case CYBER9397:
case CYBER9397DVD:
case CYBER9520:
case CYBER9525DVD:
case CYBERBLADEE4:
case CYBERBLADEi7D:
case CYBERBLADEi1:
case CYBERBLADEi1D:
case CYBERBLADEAi1:
case CYBERBLADEAi1D:
case CYBERBLADEXPAi1:
return 1;
case CYBER9320:
case CYBERBLADEi7: /* VIA MPV4 integrated version */
default:
/* case CYBERBLDAEXPm8: Strange */
/* case CYBERBLDAEXPm16: Strange */
return 0;
}
}
static inline void t_outb(struct tridentfb_par *p, u8 val, u16 reg)
{
fb_writeb(val, p->io_virt + reg);
}
static inline u8 t_inb(struct tridentfb_par *p, u16 reg)
{
return fb_readb(p->io_virt + reg);
}
static inline void writemmr(struct tridentfb_par *par, u16 r, u32 v)
{
fb_writel(v, par->io_virt + r);
}
static inline u32 readmmr(struct tridentfb_par *par, u16 r)
{
return fb_readl(par->io_virt + r);
}
#define DDC_SDA_TGUI BIT(0)
#define DDC_SCL_TGUI BIT(1)
#define DDC_SCL_DRIVE_TGUI BIT(2)
#define DDC_SDA_DRIVE_TGUI BIT(3)
#define DDC_MASK_TGUI (DDC_SCL_DRIVE_TGUI | DDC_SDA_DRIVE_TGUI)
static void tridentfb_ddc_setscl_tgui(void *data, int val)
{
struct tridentfb_par *par = data;
u8 reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK_TGUI;
if (val)
reg &= ~DDC_SCL_DRIVE_TGUI; /* disable drive - don't drive hi */
else
reg |= DDC_SCL_DRIVE_TGUI; /* drive low */
vga_mm_wcrt(par->io_virt, I2C, reg);
}
static void tridentfb_ddc_setsda_tgui(void *data, int val)
{
struct tridentfb_par *par = data;
u8 reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK_TGUI;
if (val)
reg &= ~DDC_SDA_DRIVE_TGUI; /* disable drive - don't drive hi */
else
reg |= DDC_SDA_DRIVE_TGUI; /* drive low */
vga_mm_wcrt(par->io_virt, I2C, reg);
}
static int tridentfb_ddc_getsda_tgui(void *data)
{
struct tridentfb_par *par = data;
return !!(vga_mm_rcrt(par->io_virt, I2C) & DDC_SDA_TGUI);
}
#define DDC_SDA_IN BIT(0)
#define DDC_SCL_OUT BIT(1)
#define DDC_SDA_OUT BIT(3)
#define DDC_SCL_IN BIT(6)
#define DDC_MASK (DDC_SCL_OUT | DDC_SDA_OUT)
static void tridentfb_ddc_setscl(void *data, int val)
{
struct tridentfb_par *par = data;
unsigned char reg;
reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK;
if (val)
reg |= DDC_SCL_OUT;
else
reg &= ~DDC_SCL_OUT;
vga_mm_wcrt(par->io_virt, I2C, reg);
}
static void tridentfb_ddc_setsda(void *data, int val)
{
struct tridentfb_par *par = data;
unsigned char reg;
reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK;
if (!val)
reg |= DDC_SDA_OUT;
else
reg &= ~DDC_SDA_OUT;
vga_mm_wcrt(par->io_virt, I2C, reg);
}
static int tridentfb_ddc_getscl(void *data)
{
struct tridentfb_par *par = data;
return !!(vga_mm_rcrt(par->io_virt, I2C) & DDC_SCL_IN);
}
static int tridentfb_ddc_getsda(void *data)
{
struct tridentfb_par *par = data;
return !!(vga_mm_rcrt(par->io_virt, I2C) & DDC_SDA_IN);
}
static int tridentfb_setup_ddc_bus(struct fb_info *info)
{
struct tridentfb_par *par = info->par;
strscpy(par->ddc_adapter.name, info->fix.id,
sizeof(par->ddc_adapter.name));
par->ddc_adapter.owner = THIS_MODULE;
par->ddc_adapter.class = I2C_CLASS_DDC;
par->ddc_adapter.algo_data = &par->ddc_algo;
par->ddc_adapter.dev.parent = info->device;
if (is_oldclock(par->chip_id)) { /* not sure if this check is OK */
par->ddc_algo.setsda = tridentfb_ddc_setsda_tgui;
par->ddc_algo.setscl = tridentfb_ddc_setscl_tgui;
par->ddc_algo.getsda = tridentfb_ddc_getsda_tgui;
/* no getscl */
} else {
par->ddc_algo.setsda = tridentfb_ddc_setsda;
par->ddc_algo.setscl = tridentfb_ddc_setscl;
par->ddc_algo.getsda = tridentfb_ddc_getsda;
par->ddc_algo.getscl = tridentfb_ddc_getscl;
}
par->ddc_algo.udelay = 10;
par->ddc_algo.timeout = 20;
par->ddc_algo.data = par;
i2c_set_adapdata(&par->ddc_adapter, par);
return i2c_bit_add_bus(&par->ddc_adapter);
}
/*
* Blade specific acceleration.
*/
#define point(x, y) ((y) << 16 | (x))
static void blade_init_accel(struct tridentfb_par *par, int pitch, int bpp)
{
int v1 = (pitch >> 3) << 20;
int tmp = bpp == 24 ? 2 : (bpp >> 4);
int v2 = v1 | (tmp << 29);
writemmr(par, 0x21C0, v2);
writemmr(par, 0x21C4, v2);
writemmr(par, 0x21B8, v2);
writemmr(par, 0x21BC, v2);
writemmr(par, 0x21D0, v1);
writemmr(par, 0x21D4, v1);
writemmr(par, 0x21C8, v1);
writemmr(par, 0x21CC, v1);
writemmr(par, 0x216C, 0);
}
static void blade_wait_engine(struct tridentfb_par *par)
{
while (readmmr(par, STATUS) & 0xFA800000)
cpu_relax();
}
static void blade_fill_rect(struct tridentfb_par *par,
u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
{
writemmr(par, COLOR, c);
writemmr(par, ROP, rop ? ROP_X : ROP_S);
writemmr(par, CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2);
writemmr(par, DST1, point(x, y));
writemmr(par, DST2, point(x + w - 1, y + h - 1));
}
static void blade_image_blit(struct tridentfb_par *par, const char *data,
u32 x, u32 y, u32 w, u32 h, u32 c, u32 b)
{
unsigned size = ((w + 31) >> 5) * h;
writemmr(par, COLOR, c);
writemmr(par, BGCOLOR, b);
writemmr(par, CMD, 0xa0000000 | 3 << 19);
writemmr(par, DST1, point(x, y));
writemmr(par, DST2, point(x + w - 1, y + h - 1));
iowrite32_rep(par->io_virt + 0x10000, data, size);
}
static void blade_copy_rect(struct tridentfb_par *par,
u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
{
int direction = 2;
u32 s1 = point(x1, y1);
u32 s2 = point(x1 + w - 1, y1 + h - 1);
u32 d1 = point(x2, y2);
u32 d2 = point(x2 + w - 1, y2 + h - 1);
if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
direction = 0;
writemmr(par, ROP, ROP_S);
writemmr(par, CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction);
writemmr(par, SRC1, direction ? s2 : s1);
writemmr(par, SRC2, direction ? s1 : s2);
writemmr(par, DST1, direction ? d2 : d1);
writemmr(par, DST2, direction ? d1 : d2);
}
/*
* BladeXP specific acceleration functions
*/
static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp)
{
unsigned char x = bpp == 24 ? 3 : (bpp >> 4);
int v1 = pitch << (bpp == 24 ? 20 : (18 + x));
switch (pitch << (bpp >> 3)) {
case 8192:
case 512:
x |= 0x00;
break;
case 1024:
x |= 0x04;
break;
case 2048:
x |= 0x08;
break;
case 4096:
x |= 0x0C;
break;
}
t_outb(par, x, 0x2125);
par->eng_oper = x | 0x40;
writemmr(par, 0x2154, v1);
writemmr(par, 0x2150, v1);
t_outb(par, 3, 0x2126);
}
static void xp_wait_engine(struct tridentfb_par *par)
{
int count = 0;
int timeout = 0;
while (t_inb(par, STATUS) & 0x80) {
count++;
if (count == 10000000) {
/* Timeout */
count = 9990000;
timeout++;
if (timeout == 8) {
/* Reset engine */
t_outb(par, 0x00, STATUS);
return;
}
}
cpu_relax();
}
}
static void xp_fill_rect(struct tridentfb_par *par,
u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
{
writemmr(par, 0x2127, ROP_P);
writemmr(par, 0x2158, c);
writemmr(par, DRAWFL, 0x4000);
writemmr(par, OLDDIM, point(h, w));
writemmr(par, OLDDST, point(y, x));
t_outb(par, 0x01, OLDCMD);
t_outb(par, par->eng_oper, 0x2125);
}
static void xp_copy_rect(struct tridentfb_par *par,
u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
{
u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
int direction = 0x0004;
if ((x1 < x2) && (y1 == y2)) {
direction |= 0x0200;
x1_tmp = x1 + w - 1;
x2_tmp = x2 + w - 1;
} else {
x1_tmp = x1;
x2_tmp = x2;
}
if (y1 < y2) {
direction |= 0x0100;
y1_tmp = y1 + h - 1;
y2_tmp = y2 + h - 1;
} else {
y1_tmp = y1;
y2_tmp = y2;
}
writemmr(par, DRAWFL, direction);
t_outb(par, ROP_S, 0x2127);
writemmr(par, OLDSRC, point(y1_tmp, x1_tmp));
writemmr(par, OLDDST, point(y2_tmp, x2_tmp));
writemmr(par, OLDDIM, point(h, w));
t_outb(par, 0x01, OLDCMD);
}
/*
* Image specific acceleration functions
*/
static void image_init_accel(struct tridentfb_par *par, int pitch, int bpp)
{
int tmp = bpp == 24 ? 2: (bpp >> 4);
writemmr(par, 0x2120, 0xF0000000);
writemmr(par, 0x2120, 0x40000000 | tmp);
writemmr(par, 0x2120, 0x80000000);
writemmr(par, 0x2144, 0x00000000);
writemmr(par, 0x2148, 0x00000000);
writemmr(par, 0x2150, 0x00000000);
writemmr(par, 0x2154, 0x00000000);
writemmr(par, 0x2120, 0x60000000 | (pitch << 16) | pitch);
writemmr(par, 0x216C, 0x00000000);
writemmr(par, 0x2170, 0x00000000);
writemmr(par, 0x217C, 0x00000000);
writemmr(par, 0x2120, 0x10000000);
writemmr(par, 0x2130, (2047 << 16) | 2047);
}
static void image_wait_engine(struct tridentfb_par *par)
{
while (readmmr(par, 0x2164) & 0xF0000000)
cpu_relax();
}
static void image_fill_rect(struct tridentfb_par *par,
u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
{
writemmr(par, 0x2120, 0x80000000);
writemmr(par, 0x2120, 0x90000000 | ROP_S);
writemmr(par, 0x2144, c);
writemmr(par, DST1, point(x, y));
writemmr(par, DST2, point(x + w - 1, y + h - 1));
writemmr(par, 0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9);
}
static void image_copy_rect(struct tridentfb_par *par,
u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
{
int direction = 0x4;
u32 s1 = point(x1, y1);
u32 s2 = point(x1 + w - 1, y1 + h - 1);
u32 d1 = point(x2, y2);
u32 d2 = point(x2 + w - 1, y2 + h - 1);
if ((y1 > y2) || ((y1 == y2) && (x1 > x2)))
direction = 0;
writemmr(par, 0x2120, 0x80000000);
writemmr(par, 0x2120, 0x90000000 | ROP_S);
writemmr(par, SRC1, direction ? s2 : s1);
writemmr(par, SRC2, direction ? s1 : s2);
writemmr(par, DST1, direction ? d2 : d1);
writemmr(par, DST2, direction ? d1 : d2);
writemmr(par, 0x2124,
0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction);
}
/*
* TGUI 9440/96XX acceleration
*/
static void tgui_init_accel(struct tridentfb_par *par, int pitch, int bpp)
{
unsigned char x = bpp == 24 ? 3 : (bpp >> 4);
/* disable clipping */
writemmr(par, 0x2148, 0);
writemmr(par, 0x214C, point(4095, 2047));
switch ((pitch * bpp) / 8) {
case 8192:
case 512:
x |= 0x00;
break;
case 1024:
x |= 0x04;
break;
case 2048:
x |= 0x08;
break;
case 4096:
x |= 0x0C;
break;
}
fb_writew(x, par->io_virt + 0x2122);
}
static void tgui_fill_rect(struct tridentfb_par *par,
u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop)
{
t_outb(par, ROP_P, 0x2127);
writemmr(par, OLDCLR, c);
writemmr(par, DRAWFL, 0x4020);
writemmr(par, OLDDIM, point(w - 1, h - 1));
writemmr(par, OLDDST, point(x, y));
t_outb(par, 1, OLDCMD);
}
static void tgui_copy_rect(struct tridentfb_par *par,
u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h)
{
int flags = 0;
u16 x1_tmp, x2_tmp, y1_tmp, y2_tmp;
if ((x1 < x2) && (y1 == y2)) {
flags |= 0x0200;
x1_tmp = x1 + w - 1;
x2_tmp = x2 + w - 1;
} else {
x1_tmp = x1;
x2_tmp = x2;
}
if (y1 < y2) {
flags |= 0x0100;
y1_tmp = y1 + h - 1;
y2_tmp = y2 + h - 1;
} else {
y1_tmp = y1;
y2_tmp = y2;
}
writemmr(par, DRAWFL, 0x4 | flags);
t_outb(par, ROP_S, 0x2127);
writemmr(par, OLDSRC, point(x1_tmp, y1_tmp));
writemmr(par, OLDDST, point(x2_tmp, y2_tmp));
writemmr(par, OLDDIM, point(w - 1, h - 1));
t_outb(par, 1, OLDCMD);
}
/*
* Accel functions called by the upper layers
*/
static void tridentfb_fillrect(struct fb_info *info,
const struct fb_fillrect *fr)
{
struct tridentfb_par *par = info->par;
int col;
if (info->flags & FBINFO_HWACCEL_DISABLED) {
cfb_fillrect(info, fr);
return;
}
if (info->var.bits_per_pixel == 8) {
col = fr->color;
col |= col << 8;
col |= col << 16;
} else
col = ((u32 *)(info->pseudo_palette))[fr->color];
par->wait_engine(par);
par->fill_rect(par, fr->dx, fr->dy, fr->width,
fr->height, col, fr->rop);
}
static void tridentfb_imageblit(struct fb_info *info,
const struct fb_image *img)
{
struct tridentfb_par *par = info->par;
int col, bgcol;
if ((info->flags & FBINFO_HWACCEL_DISABLED) || img->depth != 1) {
cfb_imageblit(info, img);
return;
}
if (info->var.bits_per_pixel == 8) {
col = img->fg_color;
col |= col << 8;
col |= col << 16;
bgcol = img->bg_color;
bgcol |= bgcol << 8;
bgcol |= bgcol << 16;
} else {
col = ((u32 *)(info->pseudo_palette))[img->fg_color];
bgcol = ((u32 *)(info->pseudo_palette))[img->bg_color];
}
par->wait_engine(par);
if (par->image_blit)
par->image_blit(par, img->data, img->dx, img->dy,
img->width, img->height, col, bgcol);
else
cfb_imageblit(info, img);
}
static void tridentfb_copyarea(struct fb_info *info,
const struct fb_copyarea *ca)
{
struct tridentfb_par *par = info->par;
if (info->flags & FBINFO_HWACCEL_DISABLED) {
cfb_copyarea(info, ca);
return;
}
par->wait_engine(par);
par->copy_rect(par, ca->sx, ca->sy, ca->dx, ca->dy,
ca->width, ca->height);
}
static int tridentfb_sync(struct fb_info *info)
{
struct tridentfb_par *par = info->par;
if (!(info->flags & FBINFO_HWACCEL_DISABLED))
par->wait_engine(par);
return 0;
}
/*
* Hardware access functions
*/
static inline unsigned char read3X4(struct tridentfb_par *par, int reg)
{
return vga_mm_rcrt(par->io_virt, reg);
}
static inline void write3X4(struct tridentfb_par *par, int reg,
unsigned char val)
{
vga_mm_wcrt(par->io_virt, reg, val);
}
static inline unsigned char read3CE(struct tridentfb_par *par,
unsigned char reg)
{
return vga_mm_rgfx(par->io_virt, reg);
}
static inline void writeAttr(struct tridentfb_par *par, int reg,
unsigned char val)
{
fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */
vga_mm_wattr(par->io_virt, reg, val);
}
static inline void write3CE(struct tridentfb_par *par, int reg,
unsigned char val)
{
vga_mm_wgfx(par->io_virt, reg, val);
}
static void enable_mmio(struct tridentfb_par *par)
{
/* Goto New Mode */
vga_io_rseq(0x0B);
/* Unprotect registers */
vga_io_wseq(NewMode1, 0x80);
if (!is_oldprotect(par->chip_id))
vga_io_wseq(Protection, 0x92);
/* Enable MMIO */
outb(PCIReg, 0x3D4);
outb(inb(0x3D5) | 0x01, 0x3D5);
}
static void disable_mmio(struct tridentfb_par *par)
{
/* Goto New Mode */
vga_mm_rseq(par->io_virt, 0x0B);
/* Unprotect registers */
vga_mm_wseq(par->io_virt, NewMode1, 0x80);
if (!is_oldprotect(par->chip_id))
vga_mm_wseq(par->io_virt, Protection, 0x92);
/* Disable MMIO */
t_outb(par, PCIReg, 0x3D4);
t_outb(par, t_inb(par, 0x3D5) & ~0x01, 0x3D5);
}
static inline void crtc_unlock(struct tridentfb_par *par)
{
write3X4(par, VGA_CRTC_V_SYNC_END,
read3X4(par, VGA_CRTC_V_SYNC_END) & 0x7F);
}
/* Return flat panel's maximum x resolution */
static int get_nativex(struct tridentfb_par *par)
{
int x, y, tmp;
if (nativex)
return nativex;
tmp = (read3CE(par, VertStretch) >> 4) & 3;
switch (tmp) {
case 0:
x = 1280; y = 1024;
break;
case 2:
x = 1024; y = 768;
break;
case 3:
x = 800; y = 600;
break;
case 1:
default:
x = 640; y = 480;
break;
}
output("%dx%d flat panel found\n", x, y);
return x;
}
/* Set pitch */
static inline void set_lwidth(struct tridentfb_par *par, int width)
{
write3X4(par, VGA_CRTC_OFFSET, width & 0xFF);
/* chips older than TGUI9660 have only 1 width bit in AddColReg */
/* touching the other one breaks I2C/DDC */
if (par->chip_id == TGUI9440 || par->chip_id == CYBER9320)
write3X4(par, AddColReg,
(read3X4(par, AddColReg) & 0xEF) | ((width & 0x100) >> 4));
else
write3X4(par, AddColReg,
(read3X4(par, AddColReg) & 0xCF) | ((width & 0x300) >> 4));
}
/* For resolutions smaller than FP resolution stretch */
static void screen_stretch(struct tridentfb_par *par)
{
if (par->chip_id != CYBERBLADEXPAi1)
write3CE(par, BiosReg, 0);
else
write3CE(par, BiosReg, 8);
write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 1);
write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 1);
}
/* For resolutions smaller than FP resolution center */
static inline void screen_center(struct tridentfb_par *par)
{
write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 0x80);
write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 0x80);
}
/* Address of first shown pixel in display memory */
static void set_screen_start(struct tridentfb_par *par, int base)
{
u8 tmp;
write3X4(par, VGA_CRTC_START_LO, base & 0xFF);
write3X4(par, VGA_CRTC_START_HI, (base & 0xFF00) >> 8);
tmp = read3X4(par, CRTCModuleTest) & 0xDF;
write3X4(par, CRTCModuleTest, tmp | ((base & 0x10000) >> 11));
tmp = read3X4(par, CRTHiOrd) & 0xF8;
write3X4(par, CRTHiOrd, tmp | ((base & 0xE0000) >> 17));
}
/* Set dotclock frequency */
static void set_vclk(struct tridentfb_par *par, unsigned long freq)
{
int m, n, k;
unsigned long fi, d, di;
unsigned char best_m = 0, best_n = 0, best_k = 0;
unsigned char hi, lo;
unsigned char shift = !is_oldclock(par->chip_id) ? 2 : 1;
d = 20000;
for (k = shift; k >= 0; k--)
for (m = 1; m < 32; m++) {
n = ((m + 2) << shift) - 8;
for (n = (n < 0 ? 0 : n); n < 122; n++) {
fi = ((14318l * (n + 8)) / (m + 2)) >> k;
di = abs(fi - freq);
if (di < d || (di == d && k == best_k)) {
d = di;
best_n = n;
best_m = m;
best_k = k;
}
if (fi > freq)
break;
}
}
if (is_oldclock(par->chip_id)) {
lo = best_n | (best_m << 7);
hi = (best_m >> 1) | (best_k << 4);
} else {
lo = best_n;
hi = best_m | (best_k << 6);
}
if (is3Dchip(par->chip_id)) {
vga_mm_wseq(par->io_virt, ClockHigh, hi);
vga_mm_wseq(par->io_virt, ClockLow, lo);
} else {
t_outb(par, lo, 0x43C8);
t_outb(par, hi, 0x43C9);
}
debug("VCLK = %X %X\n", hi, lo);
}
/* Set number of lines for flat panels*/
static void set_number_of_lines(struct tridentfb_par *par, int lines)
{
int tmp = read3CE(par, CyberEnhance) & 0x8F;
if (lines > 1024)
tmp |= 0x50;
else if (lines > 768)
tmp |= 0x30;
else if (lines > 600)
tmp |= 0x20;
else if (lines > 480)
tmp |= 0x10;
write3CE(par, CyberEnhance, tmp);
}
/*
* If we see that FP is active we assume we have one.
* Otherwise we have a CRT display. User can override.
*/
static int is_flatpanel(struct tridentfb_par *par)
{
if (fp)
return 1;
if (crt || !iscyber(par->chip_id))
return 0;
return (read3CE(par, FPConfig) & 0x10) ? 1 : 0;
}
/* Try detecting the video memory size */
static unsigned int get_memsize(struct tridentfb_par *par)
{
unsigned char tmp, tmp2;
unsigned int k;
/* If memory size provided by user */
if (memsize)
k = memsize * Kb;
else
switch (par->chip_id) {
case CYBER9525DVD:
k = 2560 * Kb;
break;
default:
tmp = read3X4(par, SPR) & 0x0F;
switch (tmp) {
case 0x01:
k = 512 * Kb;
break;
case 0x02:
k = 6 * Mb; /* XP */
break;
case 0x03:
k = 1 * Mb;
break;
case 0x04:
k = 8 * Mb;
break;
case 0x06:
k = 10 * Mb; /* XP */
break;
case 0x07:
k = 2 * Mb;
break;
case 0x08:
k = 12 * Mb; /* XP */
break;
case 0x0A:
k = 14 * Mb; /* XP */
break;
case 0x0C:
k = 16 * Mb; /* XP */
break;
case 0x0E: /* XP */
tmp2 = vga_mm_rseq(par->io_virt, 0xC1);
switch (tmp2) {
case 0x00:
k = 20 * Mb;
break;
case 0x01:
k = 24 * Mb;
break;
case 0x10:
k = 28 * Mb;
break;
case 0x11:
k = 32 * Mb;
break;
default:
k = 1 * Mb;
break;
}
break;
case 0x0F:
k = 4 * Mb;
break;
default:
k = 1 * Mb;
break;
}
}
k -= memdiff * Kb;
output("framebuffer size = %d Kb\n", k / Kb);
return k;
}
/* See if we can handle the video mode described in var */
static int tridentfb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct tridentfb_par *par = info->par;
int bpp = var->bits_per_pixel;
int line_length;
int ramdac = 230000; /* 230MHz for most 3D chips */
debug("enter\n");
if (!var->pixclock)
return -EINVAL;
/* check color depth */
if (bpp == 24)
bpp = var->bits_per_pixel = 32;
if (bpp != 8 && bpp != 16 && bpp != 32)
return -EINVAL;
if (par->chip_id == TGUI9440 && bpp == 32)
return -EINVAL;
/* check whether resolution fits on panel and in memory */
if (par->flatpanel && nativex && var->xres > nativex)
return -EINVAL;
/* various resolution checks */
var->xres = (var->xres + 7) & ~0x7;
if (var->xres > var->xres_virtual)
var->xres_virtual = var->xres;
if (var->yres > var->yres_virtual)
var->yres_virtual = var->yres;
if (var->xres_virtual > 4095 || var->yres > 2048)
return -EINVAL;
/* prevent from position overflow for acceleration */
if (var->yres_virtual > 0xffff)
return -EINVAL;
line_length = var->xres_virtual * bpp / 8;
if (!is3Dchip(par->chip_id) &&
!(info->flags & FBINFO_HWACCEL_DISABLED)) {
/* acceleration requires line length to be power of 2 */
if (line_length <= 512)
var->xres_virtual = 512 * 8 / bpp;
else if (line_length <= 1024)
var->xres_virtual = 1024 * 8 / bpp;
else if (line_length <= 2048)
var->xres_virtual = 2048 * 8 / bpp;
else if (line_length <= 4096)
var->xres_virtual = 4096 * 8 / bpp;
else if (line_length <= 8192)
var->xres_virtual = 8192 * 8 / bpp;
else
return -EINVAL;
line_length = var->xres_virtual * bpp / 8;
}
/* datasheet specifies how to set panning only up to 4 MB */
if (line_length * (var->yres_virtual - var->yres) > (4 << 20))
var->yres_virtual = ((4 << 20) / line_length) + var->yres;
if (line_length * var->yres_virtual > info->fix.smem_len)
return -EINVAL;
switch (bpp) {
case 8:
var->red.offset = 0;
var->red.length = 8;
var->green = var->red;
var->blue = var->red;
break;
case 16:
var->red.offset = 11;
var->green.offset = 5;
var->blue.offset = 0;
var->red.length = 5;
var->green.length = 6;
var->blue.length = 5;
break;
case 32:
var->red.offset = 16;
var->green.offset = 8;
var->blue.offset = 0;
var->red.length = 8;
var->green.length = 8;
var->blue.length = 8;
break;
default:
return -EINVAL;
}
if (is_xp(par->chip_id))
ramdac = 350000;
switch (par->chip_id) {
case TGUI9440:
ramdac = (bpp >= 16) ? 45000 : 90000;
break;
case CYBER9320:
case TGUI9660:
ramdac = 135000;
break;
case PROVIDIA9685:
case CYBER9388:
case CYBER9382:
case CYBER9385:
ramdac = 170000;
break;
}
/* The clock is doubled for 32 bpp */
if (bpp == 32)
ramdac /= 2;
if (PICOS2KHZ(var->pixclock) > ramdac)
return -EINVAL;
debug("exit\n");
return 0;
}
/* Pan the display */
static int tridentfb_pan_display(struct fb_var_screeninfo *var,
struct fb_info *info)
{
struct tridentfb_par *par = info->par;
unsigned int offset;
debug("enter\n");
offset = (var->xoffset + (var->yoffset * info->var.xres_virtual))
* info->var.bits_per_pixel / 32;
set_screen_start(par, offset);
debug("exit\n");
return 0;
}
static inline void shadowmode_on(struct tridentfb_par *par)
{
write3CE(par, CyberControl, read3CE(par, CyberControl) | 0x81);
}
/* Set the hardware to the requested video mode */
static int tridentfb_set_par(struct fb_info *info)
{
struct tridentfb_par *par = info->par;
u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend;
u32 vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend;
struct fb_var_screeninfo *var = &info->var;
int bpp = var->bits_per_pixel;
unsigned char tmp;
unsigned long vclk;
debug("enter\n");
hdispend = var->xres / 8 - 1;
hsyncstart = (var->xres + var->right_margin) / 8;
hsyncend = (var->xres + var->right_margin + var->hsync_len) / 8;
htotal = (var->xres + var->left_margin + var->right_margin +
var->hsync_len) / 8 - 5;
hblankstart = hdispend + 1;
hblankend = htotal + 3;
vdispend = var->yres - 1;
vsyncstart = var->yres + var->lower_margin;
vsyncend = vsyncstart + var->vsync_len;
vtotal = var->upper_margin + vsyncend - 2;
vblankstart = vdispend + 1;
vblankend = vtotal;
if (info->var.vmode & FB_VMODE_INTERLACED) {
vtotal /= 2;
vdispend /= 2;
vsyncstart /= 2;
vsyncend /= 2;
vblankstart /= 2;
vblankend /= 2;
}
enable_mmio(par);
crtc_unlock(par);
write3CE(par, CyberControl, 8);
tmp = 0xEB;
if (var->sync & FB_SYNC_HOR_HIGH_ACT)
tmp &= ~0x40;
if (var->sync & FB_SYNC_VERT_HIGH_ACT)
tmp &= ~0x80;
if (par->flatpanel && var->xres < nativex) {
/*
* on flat panels with native size larger
* than requested resolution decide whether
* we stretch or center
*/
t_outb(par, tmp | 0xC0, VGA_MIS_W);
shadowmode_on(par);
if (center)
screen_center(par);
else if (stretch)
screen_stretch(par);
} else {
t_outb(par, tmp, VGA_MIS_W);
write3CE(par, CyberControl, 8);
}
/* vertical timing values */
write3X4(par, VGA_CRTC_V_TOTAL, vtotal & 0xFF);
write3X4(par, VGA_CRTC_V_DISP_END, vdispend & 0xFF);
write3X4(par, VGA_CRTC_V_SYNC_START, vsyncstart & 0xFF);
write3X4(par, VGA_CRTC_V_SYNC_END, (vsyncend & 0x0F));
write3X4(par, VGA_CRTC_V_BLANK_START, vblankstart & 0xFF);
write3X4(par, VGA_CRTC_V_BLANK_END, vblankend & 0xFF);
/* horizontal timing values */
write3X4(par, VGA_CRTC_H_TOTAL, htotal & 0xFF);
write3X4(par, VGA_CRTC_H_DISP, hdispend & 0xFF);
write3X4(par, VGA_CRTC_H_SYNC_START, hsyncstart & 0xFF);
write3X4(par, VGA_CRTC_H_SYNC_END,
(hsyncend & 0x1F) | ((hblankend & 0x20) << 2));
write3X4(par, VGA_CRTC_H_BLANK_START, hblankstart & 0xFF);
write3X4(par, VGA_CRTC_H_BLANK_END, hblankend & 0x1F);
/* higher bits of vertical timing values */
tmp = 0x10;
if (vtotal & 0x100) tmp |= 0x01;
if (vdispend & 0x100) tmp |= 0x02;
if (vsyncstart & 0x100) tmp |= 0x04;
if (vblankstart & 0x100) tmp |= 0x08;
if (vtotal & 0x200) tmp |= 0x20;
if (vdispend & 0x200) tmp |= 0x40;
if (vsyncstart & 0x200) tmp |= 0x80;
write3X4(par, VGA_CRTC_OVERFLOW, tmp);
tmp = read3X4(par, CRTHiOrd) & 0x07;
tmp |= 0x08; /* line compare bit 10 */
if (vtotal & 0x400) tmp |= 0x80;
if (vblankstart & 0x400) tmp |= 0x40;
if (vsyncstart & 0x400) tmp |= 0x20;
if (vdispend & 0x400) tmp |= 0x10;
write3X4(par, CRTHiOrd, tmp);
tmp = (htotal >> 8) & 0x01;
tmp |= (hdispend >> 7) & 0x02;
tmp |= (hsyncstart >> 5) & 0x08;
tmp |= (hblankstart >> 4) & 0x10;
write3X4(par, HorizOverflow, tmp);
tmp = 0x40;
if (vblankstart & 0x200) tmp |= 0x20;
//FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80; /* double scan for 200 line modes */
write3X4(par, VGA_CRTC_MAX_SCAN, tmp);
write3X4(par, VGA_CRTC_LINE_COMPARE, 0xFF);
write3X4(par, VGA_CRTC_PRESET_ROW, 0);
write3X4(par, VGA_CRTC_MODE, 0xC3);
write3X4(par, LinearAddReg, 0x20); /* enable linear addressing */
tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80;
/* enable access extended memory */
write3X4(par, CRTCModuleTest, tmp);
tmp = read3CE(par, MiscIntContReg) & ~0x4;
if (info->var.vmode & FB_VMODE_INTERLACED)
tmp |= 0x4;
write3CE(par, MiscIntContReg, tmp);
/* enable GE for text acceleration */
write3X4(par, GraphEngReg, 0x80);
switch (bpp) {
case 8:
tmp = 0x00;
break;
case 16:
tmp = 0x05;
break;
case 24:
tmp = 0x29;
break;
case 32:
tmp = 0x09;
break;
}
write3X4(par, PixelBusReg, tmp);
tmp = read3X4(par, DRAMControl);
if (!is_oldprotect(par->chip_id))
tmp |= 0x10;
if (iscyber(par->chip_id))
tmp |= 0x20;
write3X4(par, DRAMControl, tmp); /* both IO, linear enable */
write3X4(par, InterfaceSel, read3X4(par, InterfaceSel) | 0x40);
if (!is_xp(par->chip_id))
write3X4(par, Performance, read3X4(par, Performance) | 0x10);
/* MMIO & PCI read and write burst enable */
if (par->chip_id != TGUI9440 && par->chip_id != IMAGE975)
write3X4(par, PCIReg, read3X4(par, PCIReg) | 0x06);
vga_mm_wseq(par->io_virt, 0, 3);
vga_mm_wseq(par->io_virt, 1, 1); /* set char clock 8 dots wide */
/* enable 4 maps because needed in chain4 mode */
vga_mm_wseq(par->io_virt, 2, 0x0F);
vga_mm_wseq(par->io_virt, 3, 0);
vga_mm_wseq(par->io_virt, 4, 0x0E); /* memory mode enable bitmaps ?? */
/* convert from picoseconds to kHz */
vclk = PICOS2KHZ(info->var.pixclock);
/* divide clock by 2 if 32bpp chain4 mode display and CPU path */
tmp = read3CE(par, MiscExtFunc) & 0xF0;
if (bpp == 32 || (par->chip_id == TGUI9440 && bpp == 16)) {
tmp |= 8;
vclk *= 2;
}
set_vclk(par, vclk);
write3CE(par, MiscExtFunc, tmp | 0x12);
write3CE(par, 0x5, 0x40); /* no CGA compat, allow 256 col */
write3CE(par, 0x6, 0x05); /* graphics mode */
write3CE(par, 0x7, 0x0F); /* planes? */
/* graphics mode and support 256 color modes */
writeAttr(par, 0x10, 0x41);
writeAttr(par, 0x12, 0x0F); /* planes */
writeAttr(par, 0x13, 0); /* horizontal pel panning */
/* colors */
for (tmp = 0; tmp < 0x10; tmp++)
writeAttr(par, tmp, tmp);
fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */
t_outb(par, 0x20, VGA_ATT_W); /* enable attr */
switch (bpp) {
case 8:
tmp = 0;
break;
case 16:
tmp = 0x30;
break;
case 24:
case 32:
tmp = 0xD0;
break;
}
t_inb(par, VGA_PEL_IW);
t_inb(par, VGA_PEL_MSK);
t_inb(par, VGA_PEL_MSK);
t_inb(par, VGA_PEL_MSK);
t_inb(par, VGA_PEL_MSK);
t_outb(par, tmp, VGA_PEL_MSK);
t_inb(par, VGA_PEL_IW);
if (par->flatpanel)
set_number_of_lines(par, info->var.yres);
info->fix.line_length = info->var.xres_virtual * bpp / 8;
set_lwidth(par, info->fix.line_length / 8);
if (!(info->flags & FBINFO_HWACCEL_DISABLED))
par->init_accel(par, info->var.xres_virtual, bpp);
info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
info->cmap.len = (bpp == 8) ? 256 : 16;
debug("exit\n");
return 0;
}
/* Set one color register */
static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green,
unsigned blue, unsigned transp,
struct fb_info *info)
{
int bpp = info->var.bits_per_pixel;
struct tridentfb_par *par = info->par;
if (regno >= info->cmap.len)
return 1;
if (bpp == 8) {
t_outb(par, 0xFF, VGA_PEL_MSK);
t_outb(par, regno, VGA_PEL_IW);
t_outb(par, red >> 10, VGA_PEL_D);
t_outb(par, green >> 10, VGA_PEL_D);
t_outb(par, blue >> 10, VGA_PEL_D);
} else if (regno < 16) {
if (bpp == 16) { /* RGB 565 */
u32 col;
col = (red & 0xF800) | ((green & 0xFC00) >> 5) |
((blue & 0xF800) >> 11);
col |= col << 16;
((u32 *)(info->pseudo_palette))[regno] = col;
} else if (bpp == 32) /* ARGB 8888 */
((u32 *)info->pseudo_palette)[regno] =
((transp & 0xFF00) << 16) |
((red & 0xFF00) << 8) |
((green & 0xFF00)) |
((blue & 0xFF00) >> 8);
}
return 0;
}
/* Try blanking the screen. For flat panels it does nothing */
static int tridentfb_blank(int blank_mode, struct fb_info *info)
{
unsigned char PMCont, DPMSCont;
struct tridentfb_par *par = info->par;
debug("enter\n");
if (par->flatpanel)
return 0;
t_outb(par, 0x04, 0x83C8); /* Read DPMS Control */
PMCont = t_inb(par, 0x83C6) & 0xFC;
DPMSCont = read3CE(par, PowerStatus) & 0xFC;
switch (blank_mode) {
case FB_BLANK_UNBLANK:
/* Screen: On, HSync: On, VSync: On */
case FB_BLANK_NORMAL:
/* Screen: Off, HSync: On, VSync: On */
PMCont |= 0x03;
DPMSCont |= 0x00;
break;
case FB_BLANK_HSYNC_SUSPEND:
/* Screen: Off, HSync: Off, VSync: On */
PMCont |= 0x02;
DPMSCont |= 0x01;
break;
case FB_BLANK_VSYNC_SUSPEND:
/* Screen: Off, HSync: On, VSync: Off */
PMCont |= 0x02;
DPMSCont |= 0x02;
break;
case FB_BLANK_POWERDOWN:
/* Screen: Off, HSync: Off, VSync: Off */
PMCont |= 0x00;
DPMSCont |= 0x03;
break;
}
write3CE(par, PowerStatus, DPMSCont);
t_outb(par, 4, 0x83C8);
t_outb(par, PMCont, 0x83C6);
debug("exit\n");
/* let fbcon do a softblank for us */
return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
}
static const struct fb_ops tridentfb_ops = {
.owner = THIS_MODULE,
.fb_setcolreg = tridentfb_setcolreg,
.fb_pan_display = tridentfb_pan_display,
.fb_blank = tridentfb_blank,
.fb_check_var = tridentfb_check_var,
.fb_set_par = tridentfb_set_par,
.fb_fillrect = tridentfb_fillrect,
.fb_copyarea = tridentfb_copyarea,
.fb_imageblit = tridentfb_imageblit,
.fb_sync = tridentfb_sync,
};
static int trident_pci_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
int err;
unsigned char revision;
struct fb_info *info;
struct tridentfb_par *default_par;
int chip3D;
int chip_id;
bool found = false;
err = aperture_remove_conflicting_pci_devices(dev, "tridentfb");
if (err)
return err;
err = pcim_enable_device(dev);
if (err)
return err;
info = framebuffer_alloc(sizeof(struct tridentfb_par), &dev->dev);
if (!info)
return -ENOMEM;
default_par = info->par;
chip_id = id->device;
/* If PCI id is 0x9660 then further detect chip type */
if (chip_id == TGUI9660) {
revision = vga_io_rseq(RevisionID);
switch (revision) {
case 0x21:
chip_id = PROVIDIA9685;
break;
case 0x22:
case 0x23:
chip_id = CYBER9397;
break;
case 0x2A:
chip_id = CYBER9397DVD;
break;
case 0x30:
case 0x33:
case 0x34:
case 0x35:
case 0x38:
case 0x3A:
case 0xB3:
chip_id = CYBER9385;
break;
case 0x40 ... 0x43:
chip_id = CYBER9382;
break;
case 0x4A:
chip_id = CYBER9388;
break;
default:
break;
}
}
chip3D = is3Dchip(chip_id);
if (is_xp(chip_id)) {
default_par->init_accel = xp_init_accel;
default_par->wait_engine = xp_wait_engine;
default_par->fill_rect = xp_fill_rect;
default_par->copy_rect = xp_copy_rect;
tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADEXP;
} else if (is_blade(chip_id)) {
default_par->init_accel = blade_init_accel;
default_par->wait_engine = blade_wait_engine;
default_par->fill_rect = blade_fill_rect;
default_par->copy_rect = blade_copy_rect;
default_par->image_blit = blade_image_blit;
tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADE3D;
} else if (chip3D) { /* 3DImage family left */
default_par->init_accel = image_init_accel;
default_par->wait_engine = image_wait_engine;
default_par->fill_rect = image_fill_rect;
default_par->copy_rect = image_copy_rect;
tridentfb_fix.accel = FB_ACCEL_TRIDENT_3DIMAGE;
} else { /* TGUI 9440/96XX family */
default_par->init_accel = tgui_init_accel;
default_par->wait_engine = xp_wait_engine;
default_par->fill_rect = tgui_fill_rect;
default_par->copy_rect = tgui_copy_rect;
tridentfb_fix.accel = FB_ACCEL_TRIDENT_TGUI;
}
default_par->chip_id = chip_id;
/* setup MMIO region */
tridentfb_fix.mmio_start = pci_resource_start(dev, 1);
tridentfb_fix.mmio_len = pci_resource_len(dev, 1);
if (!request_mem_region(tridentfb_fix.mmio_start,
tridentfb_fix.mmio_len, "tridentfb")) {
debug("request_region failed!\n");
framebuffer_release(info);
return -1;
}
default_par->io_virt = ioremap(tridentfb_fix.mmio_start,
tridentfb_fix.mmio_len);
if (!default_par->io_virt) {
debug("ioremap failed\n");
err = -1;
goto out_unmap1;
}
enable_mmio(default_par);
/* setup framebuffer memory */
tridentfb_fix.smem_start = pci_resource_start(dev, 0);
tridentfb_fix.smem_len = get_memsize(default_par);
if (!request_mem_region(tridentfb_fix.smem_start,
tridentfb_fix.smem_len, "tridentfb")) {
debug("request_mem_region failed!\n");
disable_mmio(info->par);
err = -1;
goto out_unmap1;
}
info->screen_base = ioremap(tridentfb_fix.smem_start,
tridentfb_fix.smem_len);
if (!info->screen_base) {
debug("ioremap failed\n");
err = -1;
goto out_unmap2;
}
default_par->flatpanel = is_flatpanel(default_par);
if (default_par->flatpanel)
nativex = get_nativex(default_par);
info->fix = tridentfb_fix;
info->fbops = &tridentfb_ops;
info->pseudo_palette = default_par->pseudo_pal;
info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
if (!noaccel && default_par->init_accel) {
info->flags &= ~FBINFO_HWACCEL_DISABLED;
info->flags |= FBINFO_HWACCEL_COPYAREA;
info->flags |= FBINFO_HWACCEL_FILLRECT;
} else
info->flags |= FBINFO_HWACCEL_DISABLED;
if (is_blade(chip_id) && chip_id != BLADE3D)
info->flags |= FBINFO_READS_FAST;
info->pixmap.addr = kmalloc(4096, GFP_KERNEL);
if (!info->pixmap.addr) {
err = -ENOMEM;
goto out_unmap2;
}
info->pixmap.size = 4096;
info->pixmap.buf_align = 4;
info->pixmap.scan_align = 1;
info->pixmap.access_align = 32;
info->pixmap.flags = FB_PIXMAP_SYSTEM;
info->var.bits_per_pixel = 8;
if (default_par->image_blit) {
info->flags |= FBINFO_HWACCEL_IMAGEBLIT;
info->pixmap.scan_align = 4;
}
if (noaccel) {
printk(KERN_DEBUG "disabling acceleration\n");
info->flags |= FBINFO_HWACCEL_DISABLED;
info->pixmap.scan_align = 1;
}
if (tridentfb_setup_ddc_bus(info) == 0) {
u8 *edid = fb_ddc_read(&default_par->ddc_adapter);
default_par->ddc_registered = true;
if (edid) {
fb_edid_to_monspecs(edid, &info->monspecs);
kfree(edid);
if (!info->monspecs.modedb)
dev_err(info->device, "error getting mode database\n");
else {
const struct fb_videomode *m;
fb_videomode_to_modelist(info->monspecs.modedb,
info->monspecs.modedb_len,
&info->modelist);
m = fb_find_best_display(&info->monspecs,
&info->modelist);
if (m) {
fb_videomode_to_var(&info->var, m);
/* fill all other info->var's fields */
if (tridentfb_check_var(&info->var,
info) == 0)
found = true;
}
}
}
}
if (!mode_option && !found)
mode_option = "640x480-8@60";
/* Prepare startup mode */
if (mode_option) {
err = fb_find_mode(&info->var, info, mode_option,
info->monspecs.modedb,
info->monspecs.modedb_len,
NULL, info->var.bits_per_pixel);
if (!err || err == 4) {
err = -EINVAL;
dev_err(info->device, "mode %s not found\n",
mode_option);
fb_destroy_modedb(info->monspecs.modedb);
info->monspecs.modedb = NULL;
goto out_unmap2;
}
}
fb_destroy_modedb(info->monspecs.modedb);
info->monspecs.modedb = NULL;
err = fb_alloc_cmap(&info->cmap, 256, 0);
if (err < 0)
goto out_unmap2;
info->var.activate |= FB_ACTIVATE_NOW;
info->device = &dev->dev;
if (register_framebuffer(info) < 0) {
printk(KERN_ERR "tridentfb: could not register framebuffer\n");
fb_dealloc_cmap(&info->cmap);
err = -EINVAL;
goto out_unmap2;
}
output("fb%d: %s frame buffer device %dx%d-%dbpp\n",
info->node, info->fix.id, info->var.xres,
info->var.yres, info->var.bits_per_pixel);
pci_set_drvdata(dev, info);
return 0;
out_unmap2:
if (default_par->ddc_registered)
i2c_del_adapter(&default_par->ddc_adapter);
kfree(info->pixmap.addr);
if (info->screen_base)
iounmap(info->screen_base);
disable_mmio(info->par);
out_unmap1:
if (default_par->io_virt)
iounmap(default_par->io_virt);
framebuffer_release(info);
return err;
}
static void trident_pci_remove(struct pci_dev *dev)
{
struct fb_info *info = pci_get_drvdata(dev);
struct tridentfb_par *par = info->par;
unregister_framebuffer(info);
if (par->ddc_registered)
i2c_del_adapter(&par->ddc_adapter);
iounmap(par->io_virt);
iounmap(info->screen_base);
kfree(info->pixmap.addr);
fb_dealloc_cmap(&info->cmap);
framebuffer_release(info);
}
/* List of boards that we are trying to support */
static const struct pci_device_id trident_devices[] = {
{PCI_VENDOR_ID_TRIDENT, BLADE3D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, TGUI9440, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBER9320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBER9388, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBER9520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBER9525DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBER9397, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBER9397DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm16, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{0,}
};
MODULE_DEVICE_TABLE(pci, trident_devices);
static struct pci_driver tridentfb_pci_driver = {
.name = "tridentfb",
.id_table = trident_devices,
.probe = trident_pci_probe,
.remove = trident_pci_remove,
};
/*
* Parse user specified options (`video=trident:')
* example:
* video=trident:800x600,bpp=16,noaccel
*/
#ifndef MODULE
static int __init tridentfb_setup(char *options)
{
char *opt;
if (!options || !*options)
return 0;
while ((opt = strsep(&options, ",")) != NULL) {
if (!*opt)
continue;
if (!strncmp(opt, "noaccel", 7))
noaccel = 1;
else if (!strncmp(opt, "fp", 2))
fp = 1;
else if (!strncmp(opt, "crt", 3))
fp = 0;
else if (!strncmp(opt, "bpp=", 4))
bpp = simple_strtoul(opt + 4, NULL, 0);
else if (!strncmp(opt, "center", 6))
center = 1;
else if (!strncmp(opt, "stretch", 7))
stretch = 1;
else if (!strncmp(opt, "memsize=", 8))
memsize = simple_strtoul(opt + 8, NULL, 0);
else if (!strncmp(opt, "memdiff=", 8))
memdiff = simple_strtoul(opt + 8, NULL, 0);
else if (!strncmp(opt, "nativex=", 8))
nativex = simple_strtoul(opt + 8, NULL, 0);
else
mode_option = opt;
}
return 0;
}
#endif
static int __init tridentfb_init(void)
{
#ifndef MODULE
char *option = NULL;
#endif
if (fb_modesetting_disabled("tridentfb"))
return -ENODEV;
#ifndef MODULE
if (fb_get_options("tridentfb", &option))
return -ENODEV;
tridentfb_setup(option);
#endif
return pci_register_driver(&tridentfb_pci_driver);
}
static void __exit tridentfb_exit(void)
{
pci_unregister_driver(&tridentfb_pci_driver);
}
module_init(tridentfb_init);
module_exit(tridentfb_exit);
MODULE_AUTHOR("Jani Monoses <jani@iv.ro>");
MODULE_DESCRIPTION("Framebuffer driver for Trident cards");
MODULE_LICENSE("GPL");
MODULE_ALIAS("cyblafb");