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/*
*
* Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200 and G400
*
* (c) 1998-2002 Petr Vandrovec <vandrove@vc.cvut.cz>
*
* Portions Copyright (c) 2001 Matrox Graphics Inc.
*
* Version: 1.65 2002/08/14
*
* MTRR stuff: 1998 Tom Rini <trini@kernel.crashing.org>
*
* Contributors: "menion?" <menion@mindless.com>
* Betatesting, fixes, ideas
*
* "Kurt Garloff" <garloff@suse.de>
* Betatesting, fixes, ideas, videomodes, videomodes timmings
*
* "Tom Rini" <trini@kernel.crashing.org>
* MTRR stuff, PPC cleanups, betatesting, fixes, ideas
*
* "Bibek Sahu" <scorpio@dodds.net>
* Access device through readb|w|l and write b|w|l
* Extensive debugging stuff
*
* "Daniel Haun" <haund@usa.net>
* Testing, hardware cursor fixes
*
* "Scott Wood" <sawst46+@pitt.edu>
* Fixes
*
* "Gerd Knorr" <kraxel@goldbach.isdn.cs.tu-berlin.de>
* Betatesting
*
* "Kelly French" <targon@hazmat.com>
* "Fernando Herrera" <fherrera@eurielec.etsit.upm.es>
* Betatesting, bug reporting
*
* "Pablo Bianucci" <pbian@pccp.com.ar>
* Fixes, ideas, betatesting
*
* "Inaky Perez Gonzalez" <inaky@peloncho.fis.ucm.es>
* Fixes, enhandcements, ideas, betatesting
*
* "Ryuichi Oikawa" <roikawa@rr.iiij4u.or.jp>
* PPC betatesting, PPC support, backward compatibility
*
* "Paul Womar" <Paul@pwomar.demon.co.uk>
* "Owen Waller" <O.Waller@ee.qub.ac.uk>
* PPC betatesting
*
* "Thomas Pornin" <pornin@bolet.ens.fr>
* Alpha betatesting
*
* "Pieter van Leuven" <pvl@iae.nl>
* "Ulf Jaenicke-Roessler" <ujr@physik.phy.tu-dresden.de>
* G100 testing
*
* "H. Peter Arvin" <hpa@transmeta.com>
* Ideas
*
* "Cort Dougan" <cort@cs.nmt.edu>
* CHRP fixes and PReP cleanup
*
* "Mark Vojkovich" <mvojkovi@ucsd.edu>
* G400 support
*
* "David C. Hansen" <haveblue@us.ibm.com>
* Fixes
*
* (following author is not in any relation with this code, but his code
* is included in this driver)
*
* Based on framebuffer driver for VBE 2.0 compliant graphic boards
* (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
*
* (following author is not in any relation with this code, but his ideas
* were used when writting this driver)
*
* FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
*
*/
/* make checkconfig does not check includes for this... */
#include <linuxcomp.h>
#include <linux/config.h>
#include "matroxfb_misc.h"
#include <linux/interrupt.h>
#include <linux/matroxfb.h>
void matroxfb_DAC_out
(CPMINFO
int reg
, int val
) {
DBG_REG
(__FUNCTION__
)
mga_outb
(M_RAMDAC_BASE
+M_X_INDEX
, reg
);
mga_outb
(M_RAMDAC_BASE
+M_X_DATAREG
, val
);
}
int matroxfb_DAC_in
(CPMINFO
int reg
) {
DBG_REG
(__FUNCTION__
)
mga_outb
(M_RAMDAC_BASE
+M_X_INDEX
, reg
);
return mga_inb
(M_RAMDAC_BASE
+M_X_DATAREG
);
}
void matroxfb_var2my
(struct fb_var_screeninfo
* var
, struct my_timming
* mt
) {
unsigned int pixclock
= var
->pixclock
;
DBG
(__FUNCTION__
)
if (!pixclock
) pixclock
= 10000; /* 10ns = 100MHz */
mt
->pixclock
= 1000000000 / pixclock
;
if (mt
->pixclock
< 1) mt
->pixclock
= 1;
mt
->mnp
= -1;
mt
->dblscan
= var
->vmode
& FB_VMODE_DOUBLE
;
mt
->interlaced
= var
->vmode
& FB_VMODE_INTERLACED
;
mt
->HDisplay
= var
->xres
;
mt
->HSyncStart
= mt
->HDisplay
+ var
->right_margin
;
mt
->HSyncEnd
= mt
->HSyncStart
+ var
->hsync_len
;
mt
->HTotal
= mt
->HSyncEnd
+ var
->left_margin
;
mt
->VDisplay
= var
->yres
;
mt
->VSyncStart
= mt
->VDisplay
+ var
->lower_margin
;
mt
->VSyncEnd
= mt
->VSyncStart
+ var
->vsync_len
;
mt
->VTotal
= mt
->VSyncEnd
+ var
->upper_margin
;
mt
->sync
= var
->sync
;
}
int matroxfb_PLL_calcclock
(const struct matrox_pll_features
* pll
, unsigned int freq
, unsigned int fmax
,
unsigned int* in
, unsigned int* feed
, unsigned int* post
) {
unsigned int bestdiff
= ~
0;
unsigned int bestvco
= 0;
unsigned int fxtal
= pll
->ref_freq
;
unsigned int fwant
;
unsigned int p
;
DBG
(__FUNCTION__
)
fwant
= freq
;
#ifdef DEBUG
printk
(KERN_ERR
"post_shift_max: %d\n", pll
->post_shift_max
);
printk
(KERN_ERR
"ref_freq: %d\n", pll
->ref_freq
);
printk
(KERN_ERR
"freq: %d\n", freq
);
printk
(KERN_ERR
"vco_freq_min: %d\n", pll
->vco_freq_min
);
printk
(KERN_ERR
"in_div_min: %d\n", pll
->in_div_min
);
printk
(KERN_ERR
"in_div_max: %d\n", pll
->in_div_max
);
printk
(KERN_ERR
"feed_div_min: %d\n", pll
->feed_div_min
);
printk
(KERN_ERR
"feed_div_max: %d\n", pll
->feed_div_max
);
printk
(KERN_ERR
"fmax: %d\n", fmax
);
#endif
for (p
= 1; p
<= pll
->post_shift_max
; p
++) {
if (fwant
* 2 > fmax
)
break;
fwant
*= 2;
}
if (fwant
< pll
->vco_freq_min
) fwant
= pll
->vco_freq_min
;
if (fwant
> fmax
) fwant
= fmax
;
for (; p
-- > 0; fwant
>>= 1, bestdiff
>>= 1) {
unsigned int m
;
if (fwant
< pll
->vco_freq_min
) break;
for (m
= pll
->in_div_min
; m
<= pll
->in_div_max
; m
++) {
unsigned int diff
, fvco
;
unsigned int n
;
n
= (fwant
* (m
+ 1) + (fxtal
>> 1)) / fxtal
- 1;
if (n
> pll
->feed_div_max
)
break;
if (n
< pll
->feed_div_min
)
n
= pll
->feed_div_min
;
fvco
= (fxtal
* (n
+ 1)) / (m
+ 1);
if (fvco
< fwant
)
diff
= fwant
- fvco
;
else
diff
= fvco
- fwant
;
if (diff
< bestdiff
) {
bestdiff
= diff
;
*post
= p
;
*in
= m
;
*feed
= n
;
bestvco
= fvco
;
}
}
}
dprintk
(KERN_ERR
"clk: %02X %02X %02X %d %d %d\n", *in
, *feed
, *post
, fxtal
, bestvco
, fwant
);
return bestvco
;
}
int matroxfb_vgaHWinit
(WPMINFO
struct my_timming
* m
) {
unsigned int hd
, hs
, he
, hbe
, ht
;
unsigned int vd
, vs
, ve
, vt
, lc
;
unsigned int wd
;
unsigned int divider
;
int i
;
int fwidth
;
struct matrox_hw_state
* const hw
= &ACCESS_FBINFO
(hw
);
fwidth
= 8;
DBG
(__FUNCTION__
)
hw
->SEQ
[0] = 0x00;
if (fwidth
== 9)
hw
->SEQ
[1] = 0x00;
else
hw
->SEQ
[1] = 0x01; /* or 0x09 */
hw
->SEQ
[2] = 0x0F; /* bitplanes */
hw
->SEQ
[3] = 0x00;
hw
->SEQ
[4] = 0x0E;
/* CRTC 0..7, 9, 16..19, 21, 22 are reprogrammed by Matrox Millennium code... Hope that by MGA1064 too */
if (m
->dblscan
) {
m
->VTotal
<<= 1;
m
->VDisplay
<<= 1;
m
->VSyncStart
<<= 1;
m
->VSyncEnd
<<= 1;
}
if (m
->interlaced
) {
m
->VTotal
>>= 1;
m
->VDisplay
>>= 1;
m
->VSyncStart
>>= 1;
m
->VSyncEnd
>>= 1;
}
/* GCTL is ignored when not using 0xA0000 aperture */
hw
->GCTL
[0] = 0x00;
hw
->GCTL
[1] = 0x00;
hw
->GCTL
[2] = 0x00;
hw
->GCTL
[3] = 0x00;
hw
->GCTL
[4] = 0x00;
hw
->GCTL
[5] = 0x40;
hw
->GCTL
[6] = 0x05;
hw
->GCTL
[7] = 0x0F;
hw
->GCTL
[8] = 0xFF;
/* Whole ATTR is ignored in PowerGraphics mode */
for (i
= 0; i
< 16; i
++)
hw
->ATTR
[i
] = i
;
hw
->ATTR
[16] = 0x41;
hw
->ATTR
[17] = 0xFF;
hw
->ATTR
[18] = 0x0F;
if (fwidth
== 9)
hw
->ATTR
[19] = 0x08;
else
hw
->ATTR
[19] = 0x00;
hw
->ATTR
[20] = 0x00;
hd
= m
->HDisplay
>> 3;
hs
= m
->HSyncStart
>> 3;
he
= m
->HSyncEnd
>> 3;
ht
= m
->HTotal
>> 3;
/* standard timmings are in 8pixels, but for interleaved we cannot */
/* do it for 4bpp (because of (4bpp >> 1(interleaved))/4 == 0) */
/* using 16 or more pixels per unit can save us */
divider
= ACCESS_FBINFO
(curr.
final_bppShift);
while (divider
& 3) {
hd
>>= 1;
hs
>>= 1;
he
>>= 1;
ht
>>= 1;
divider
<<= 1;
}
divider
= divider
/ 4;
/* divider can be from 1 to 8 */
while (divider
> 8) {
hd
<<= 1;
hs
<<= 1;
he
<<= 1;
ht
<<= 1;
divider
>>= 1;
}
hd
= hd
- 1;
hs
= hs
- 1;
he
= he
- 1;
ht
= ht
- 1;
vd
= m
->VDisplay
- 1;
vs
= m
->VSyncStart
- 1;
ve
= m
->VSyncEnd
- 1;
vt
= m
->VTotal
- 2;
lc
= vd
;
/* G200 cannot work with (ht & 7) == 6 */
if (((ht
& 0x07) == 0x06) || ((ht
& 0x0F) == 0x04))
ht
++;
hbe
= ht
;
wd
= ACCESS_FBINFO
(fbcon
).
var.
xres_virtual * ACCESS_FBINFO
(curr.
final_bppShift) / 64;
hw
->CRTCEXT
[0] = 0;
hw
->CRTCEXT
[5] = 0;
if (m
->interlaced
) {
hw
->CRTCEXT
[0] = 0x80;
hw
->CRTCEXT
[5] = (hs
+ he
- ht
) >> 1;
if (!m
->dblscan
)
wd
<<= 1;
vt
&= ~
1;
}
hw
->CRTCEXT
[0] |= (wd
& 0x300) >> 4;
hw
->CRTCEXT
[1] = (((ht
- 4) & 0x100) >> 8) |
((hd
& 0x100) >> 7) | /* blanking */
((hs
& 0x100) >> 6) | /* sync start */
(hbe
& 0x040); /* end hor. blanking */
/* FIXME: Enable vidrst only on G400, and only if TV-out is used */
if (ACCESS_FBINFO
(outputs
[1]).
src == MATROXFB_SRC_CRTC1
)
hw
->CRTCEXT
[1] |= 0x88; /* enable horizontal and vertical vidrst */
hw
->CRTCEXT
[2] = ((vt
& 0xC00) >> 10) |
((vd
& 0x400) >> 8) | /* disp end */
((vd
& 0xC00) >> 7) | /* vblanking start */
((vs
& 0xC00) >> 5) |
((lc
& 0x400) >> 3);
hw
->CRTCEXT
[3] = (divider
- 1) | 0x80;
hw
->CRTCEXT
[4] = 0;
hw
->CRTC
[0] = ht
-4;
hw
->CRTC
[1] = hd
;
hw
->CRTC
[2] = hd
;
hw
->CRTC
[3] = (hbe
& 0x1F) | 0x80;
hw
->CRTC
[4] = hs
;
hw
->CRTC
[5] = ((hbe
& 0x20) << 2) | (he
& 0x1F);
hw
->CRTC
[6] = vt
& 0xFF;
hw
->CRTC
[7] = ((vt
& 0x100) >> 8) |
((vd
& 0x100) >> 7) |
((vs
& 0x100) >> 6) |
((vd
& 0x100) >> 5) |
((lc
& 0x100) >> 4) |
((vt
& 0x200) >> 4) |
((vd
& 0x200) >> 3) |
((vs
& 0x200) >> 2);
hw
->CRTC
[8] = 0x00;
hw
->CRTC
[9] = ((vd
& 0x200) >> 4) |
((lc
& 0x200) >> 3);
if (m
->dblscan
&& !m
->interlaced
)
hw
->CRTC
[9] |= 0x80;
for (i
= 10; i
< 16; i
++)
hw
->CRTC
[i
] = 0x00;
hw
->CRTC
[16] = vs
/* & 0xFF */;
hw
->CRTC
[17] = (ve
& 0x0F) | 0x20;
hw
->CRTC
[18] = vd
/* & 0xFF */;
hw
->CRTC
[19] = wd
/* & 0xFF */;
hw
->CRTC
[20] = 0x00;
hw
->CRTC
[21] = vd
/* & 0xFF */;
hw
->CRTC
[22] = (vt
+ 1) /* & 0xFF */;
hw
->CRTC
[23] = 0xC3;
hw
->CRTC
[24] = lc
;
return 0;
};
void matroxfb_vgaHWrestore
(WPMINFO2
) {
int i
;
struct matrox_hw_state
* const hw
= &ACCESS_FBINFO
(hw
);
CRITFLAGS
DBG
(__FUNCTION__
)
dprintk
(KERN_INFO
"MiscOutReg: %02X\n", hw
->MiscOutReg
);
dprintk
(KERN_INFO
"SEQ regs: ");
for (i
= 0; i
< 5; i
++)
dprintk
("%02X:", hw
->SEQ
[i
]);
dprintk
("\n");
dprintk
(KERN_INFO
"GDC regs: ");
for (i
= 0; i
< 9; i
++)
dprintk
("%02X:", hw
->GCTL
[i
]);
dprintk
("\n");
dprintk
(KERN_INFO
"CRTC regs: ");
for (i
= 0; i
< 25; i
++)
dprintk
("%02X:", hw
->CRTC
[i
]);
dprintk
("\n");
dprintk
(KERN_INFO
"ATTR regs: ");
for (i
= 0; i
< 21; i
++)
dprintk
("%02X:", hw
->ATTR
[i
]);
dprintk
("\n");
CRITBEGIN
mga_inb
(M_ATTR_RESET
);
mga_outb
(M_ATTR_INDEX
, 0);
mga_outb
(M_MISC_REG
, hw
->MiscOutReg
);
for (i
= 1; i
< 5; i
++)
mga_setr
(M_SEQ_INDEX
, i
, hw
->SEQ
[i
]);
mga_setr
(M_CRTC_INDEX
, 17, hw
->CRTC
[17] & 0x7F);
for (i
= 0; i
< 25; i
++)
mga_setr
(M_CRTC_INDEX
, i
, hw
->CRTC
[i
]);
for (i
= 0; i
< 9; i
++)
mga_setr
(M_GRAPHICS_INDEX
, i
, hw
->GCTL
[i
]);
for (i
= 0; i
< 21; i
++) {
mga_inb
(M_ATTR_RESET
);
mga_outb
(M_ATTR_INDEX
, i
);
mga_outb
(M_ATTR_INDEX
, hw
->ATTR
[i
]);
}
mga_outb
(M_PALETTE_MASK
, 0xFF);
mga_outb
(M_DAC_REG
, 0x00);
for (i
= 0; i
< 768; i
++)
mga_outb
(M_DAC_VAL
, hw
->DACpal
[i
]);
mga_inb
(M_ATTR_RESET
);
mga_outb
(M_ATTR_INDEX
, 0x20);
CRITEND
}
static void get_pins
(unsigned char* pins
, struct matrox_bios
* bd
) {
unsigned int b0
= readb
(pins
);
if (b0
== 0x2E && readb
(pins
+1) == 0x41) {
unsigned int pins_len
= readb
(pins
+2);
unsigned int i
;
unsigned char cksum
;
unsigned char* dst
= bd
->pins
;
if (pins_len
< 3 || pins_len
> 128) {
return;
}
*dst
++ = 0x2E;
*dst
++ = 0x41;
*dst
++ = pins_len
;
cksum
= 0x2E + 0x41 + pins_len
;
for (i
= 3; i
< pins_len
; i
++) {
cksum
+= *dst
++ = readb
(pins
+i
);
}
if (cksum
) {
return;
}
bd
->pins_len
= pins_len
;
} else if (b0
== 0x40 && readb
(pins
+1) == 0x00) {
unsigned int i
;
unsigned char* dst
= bd
->pins
;
*dst
++ = 0x40;
*dst
++ = 0;
for (i
= 2; i
< 0x40; i
++) {
*dst
++ = readb
(pins
+i
);
}
bd
->pins_len
= 0x40;
}
}
static void get_bios_version
(unsigned char* vbios
, struct matrox_bios
* bd
) {
unsigned int pcir_offset
;
pcir_offset
= readb
(vbios
+ 24) | (readb
(vbios
+ 25) << 8);
if (pcir_offset
>= 26 && pcir_offset
< 0xFFE0 &&
readb
(vbios
+ pcir_offset
) == 'P' &&
readb
(vbios
+ pcir_offset
+ 1) == 'C' &&
readb
(vbios
+ pcir_offset
+ 2) == 'I' &&
readb
(vbios
+ pcir_offset
+ 3) == 'R') {
unsigned char h
;
h
= readb
(vbios
+ pcir_offset
+ 0x12);
bd
->version.
vMaj = (h
>> 4) & 0xF;
bd
->version.
vMin = h
& 0xF;
bd
->version.
vRev = readb
(vbios
+ pcir_offset
+ 0x13);
} else {
unsigned char h
;
h
= readb
(vbios
+ 5);
bd
->version.
vMaj = (h
>> 4) & 0xF;
bd
->version.
vMin = h
& 0xF;
bd
->version.
vRev = 0;
}
}
static void get_bios_output
(unsigned char* vbios
, struct matrox_bios
* bd
) {
unsigned char b
;
b
= readb
(vbios
+ 0x7FF1);
if (b
== 0xFF) {
b
= 0;
}
bd
->output.
state = b
;
}
static void get_bios_tvout
(unsigned char* vbios
, struct matrox_bios
* bd
) {
unsigned int i
;
/* Check for 'IBM .*(V....TVO' string - it means TVO BIOS */
bd
->output.
tvout = 0;
if (readb
(vbios
+ 0x1D) != 'I' ||
readb
(vbios
+ 0x1E) != 'B' ||
readb
(vbios
+ 0x1F) != 'M' ||
readb
(vbios
+ 0x20) != ' ') {
return;
}
for (i
= 0x2D; i
< 0x2D + 128; i
++) {
unsigned char b
= readb
(vbios
+ i
);
if (b
== '(' && readb
(vbios
+ i
+ 1) == 'V') {
if (readb
(vbios
+ i
+ 6) == 'T' &&
readb
(vbios
+ i
+ 7) == 'V' &&
readb
(vbios
+ i
+ 8) == 'O') {
bd
->output.
tvout = 1;
}
return;
}
if (b
== 0)
break;
}
}
static void parse_bios
(unsigned char* vbios
, struct matrox_bios
* bd
) {
unsigned int pins_offset
;
if (readb
(vbios
) != 0x55 || readb
(vbios
+ 1) != 0xAA) {
return;
}
bd
->bios_valid
= 1;
get_bios_version
(vbios
, bd
);
get_bios_output
(vbios
, bd
);
get_bios_tvout
(vbios
, bd
);
pins_offset
= readb
(vbios
+ 0x7FFC) | (readb
(vbios
+ 0x7FFD) << 8);
if (pins_offset
<= 0xFF80) {
get_pins
(vbios
+ pins_offset
, bd
);
}
}
#define get_u16(x) (le16_to_cpu(get_unaligned((__u16*)(x))))
#define get_u32(x) (le32_to_cpu(get_unaligned((__u32*)(x))))
static int parse_pins1
(WPMINFO
const struct matrox_bios
* bd
) {
unsigned int maxdac
;
switch (bd
->pins
[22]) {
case 0: maxdac
= 175000; break;
case 1: maxdac
= 220000; break;
default: maxdac
= 240000; break;
}
if (get_u16
(bd
->pins
+ 24)) {
maxdac
= get_u16
(bd
->pins
+ 24) * 10;
}
MINFO
->limits.
pixel.
vcomax = maxdac
;
MINFO
->values.
pll.
system = get_u16
(bd
->pins
+ 28) ? get_u16
(bd
->pins
+ 28) * 10 : 50000;
/* ignore 4MB, 8MB, module clocks */
MINFO
->features.
pll.
ref_freq = 14318;
MINFO
->values.
reg.
mctlwtst = 0x00030101;
return 0;
}
static void default_pins1
(WPMINFO2
) {
/* Millennium */
MINFO
->limits.
pixel.
vcomax = 220000;
MINFO
->values.
pll.
system = 50000;
MINFO
->features.
pll.
ref_freq = 14318;
MINFO
->values.
reg.
mctlwtst = 0x00030101;
}
static int parse_pins2
(WPMINFO
const struct matrox_bios
* bd
) {
MINFO
->limits.
pixel.
vcomax =
MINFO
->limits.
system.
vcomax = (bd
->pins
[41] == 0xFF) ? 230000 : ((bd
->pins
[41] + 100) * 1000);
MINFO
->values.
reg.
mctlwtst = ((bd
->pins
[51] & 0x01) ? 0x00000001 : 0) |
((bd
->pins
[51] & 0x02) ? 0x00000100 : 0) |
((bd
->pins
[51] & 0x04) ? 0x00010000 : 0) |
((bd
->pins
[51] & 0x08) ? 0x00020000 : 0);
MINFO
->values.
pll.
system = (bd
->pins
[43] == 0xFF) ? 50000 : ((bd
->pins
[43] + 100) * 1000);
MINFO
->features.
pll.
ref_freq = 14318;
return 0;
}
static void default_pins2
(WPMINFO2
) {
/* Millennium II, Mystique */
MINFO
->limits.
pixel.
vcomax =
MINFO
->limits.
system.
vcomax = 230000;
MINFO
->values.
reg.
mctlwtst = 0x00030101;
MINFO
->values.
pll.
system = 50000;
MINFO
->features.
pll.
ref_freq = 14318;
}
static int parse_pins3
(WPMINFO
const struct matrox_bios
* bd
) {
MINFO
->limits.
pixel.
vcomax =
MINFO
->limits.
system.
vcomax = (bd
->pins
[36] == 0xFF) ? 230000 : ((bd
->pins
[36] + 100) * 1000);
MINFO
->values.
reg.
mctlwtst = get_u32
(bd
->pins
+ 48) == 0xFFFFFFFF ? 0x01250A21 : get_u32
(bd
->pins
+ 48);
/* memory config */
MINFO
->values.
reg.
memrdbk = ((bd
->pins
[57] << 21) & 0x1E000000) |
((bd
->pins
[57] << 22) & 0x00C00000) |
((bd
->pins
[56] << 1) & 0x000001E0) |
( bd
->pins
[56] & 0x0000000F);
MINFO
->values.
reg.
opt = (bd
->pins
[54] & 7) << 10;
MINFO
->values.
reg.
opt2 = bd
->pins
[58] << 12;
MINFO
->features.
pll.
ref_freq = (bd
->pins
[52] & 0x20) ? 14318 : 27000;
return 0;
}
static void default_pins3
(WPMINFO2
) {
/* G100, G200 */
MINFO
->limits.
pixel.
vcomax =
MINFO
->limits.
system.
vcomax = 230000;
MINFO
->values.
reg.
mctlwtst = 0x01250A21;
MINFO
->values.
reg.
memrdbk = 0x00000000;
MINFO
->values.
reg.
opt = 0x00000C00;
MINFO
->values.
reg.
opt2 = 0x00000000;
MINFO
->features.
pll.
ref_freq = 27000;
}
static int parse_pins4
(WPMINFO
const struct matrox_bios
* bd
) {
MINFO
->limits.
pixel.
vcomax = (bd
->pins
[ 39] == 0xFF) ? 230000 : bd
->pins
[ 39] * 4000;
MINFO
->limits.
system.
vcomax = (bd
->pins
[ 38] == 0xFF) ? MINFO
->limits.
pixel.
vcomax : bd
->pins
[ 38] * 4000;
MINFO
->values.
reg.
mctlwtst = get_u32
(bd
->pins
+ 71);
MINFO
->values.
reg.
memrdbk = ((bd
->pins
[87] << 21) & 0x1E000000) |
((bd
->pins
[87] << 22) & 0x00C00000) |
((bd
->pins
[86] << 1) & 0x000001E0) |
( bd
->pins
[86] & 0x0000000F);
MINFO
->values.
reg.
opt = ((bd
->pins
[53] << 15) & 0x00400000) |
((bd
->pins
[53] << 22) & 0x10000000) |
((bd
->pins
[53] << 7) & 0x00001C00);
MINFO
->values.
reg.
opt3 = get_u32
(bd
->pins
+ 67);
MINFO
->values.
pll.
system = (bd
->pins
[ 65] == 0xFF) ? 200000 : bd
->pins
[ 65] * 4000;
MINFO
->features.
pll.
ref_freq = (bd
->pins
[ 92] & 0x01) ? 14318 : 27000;
return 0;
}
static void default_pins4
(WPMINFO2
) {
/* G400 */
MINFO
->limits.
pixel.
vcomax =
MINFO
->limits.
system.
vcomax = 252000;
MINFO
->values.
reg.
mctlwtst = 0x04A450A1;
MINFO
->values.
reg.
memrdbk = 0x000000E7;
MINFO
->values.
reg.
opt = 0x10000400;
MINFO
->values.
reg.
opt3 = 0x0190A419;
MINFO
->values.
pll.
system = 200000;
MINFO
->features.
pll.
ref_freq = 27000;
}
static int parse_pins5
(WPMINFO
const struct matrox_bios
* bd
) {
unsigned int mult
;
mult
= bd
->pins
[4]?8000:6000;
MINFO
->limits.
pixel.
vcomax = (bd
->pins
[ 38] == 0xFF) ? 600000 : bd
->pins
[ 38] * mult
;
MINFO
->limits.
system.
vcomax = (bd
->pins
[ 36] == 0xFF) ? MINFO
->limits.
pixel.
vcomax : bd
->pins
[ 36] * mult
;
MINFO
->limits.
video.
vcomax = (bd
->pins
[ 37] == 0xFF) ? MINFO
->limits.
system.
vcomax : bd
->pins
[ 37] * mult
;
MINFO
->limits.
pixel.
vcomin = (bd
->pins
[123] == 0xFF) ? 256000 : bd
->pins
[123] * mult
;
MINFO
->limits.
system.
vcomin = (bd
->pins
[121] == 0xFF) ? MINFO
->limits.
pixel.
vcomin : bd
->pins
[121] * mult
;
MINFO
->limits.
video.
vcomin = (bd
->pins
[122] == 0xFF) ? MINFO
->limits.
system.
vcomin : bd
->pins
[122] * mult
;
MINFO
->values.
pll.
system =
MINFO
->values.
pll.
video = (bd
->pins
[ 92] == 0xFF) ? 284000 : bd
->pins
[ 92] * 4000;
MINFO
->values.
reg.
opt = get_u32
(bd
->pins
+ 48);
MINFO
->values.
reg.
opt2 = get_u32
(bd
->pins
+ 52);
MINFO
->values.
reg.
opt3 = get_u32
(bd
->pins
+ 94);
MINFO
->values.
reg.
mctlwtst = get_u32
(bd
->pins
+ 98);
MINFO
->values.
reg.
memmisc = get_u32
(bd
->pins
+102);
MINFO
->values.
reg.
memrdbk = get_u32
(bd
->pins
+106);
MINFO
->features.
pll.
ref_freq = (bd
->pins
[110] & 0x01) ? 14318 : 27000;
MINFO
->values.
memory.
ddr = (bd
->pins
[114] & 0x60) == 0x20;
MINFO
->values.
memory.
dll = (bd
->pins
[115] & 0x02) != 0;
MINFO
->values.
memory.
emrswen = (bd
->pins
[115] & 0x01) != 0;
MINFO
->values.
reg.
maccess = MINFO
->values.
memory.
emrswen ? 0x00004000 : 0x00000000;
if (bd
->pins
[115] & 4) {
MINFO
->values.
reg.
mctlwtst_core = MINFO
->values.
reg.
mctlwtst;
} else {
u_int32_t wtst_xlat
[] = { 0, 1, 5, 6, 7, 5, 2, 3 };
MINFO
->values.
reg.
mctlwtst_core = (MINFO
->values.
reg.
mctlwtst & ~
7) |
wtst_xlat
[MINFO
->values.
reg.
mctlwtst & 7];
}
return 0;
}
static void default_pins5
(WPMINFO2
) {
/* Mine 16MB G450 with SDRAM DDR */
MINFO
->limits.
pixel.
vcomax =
MINFO
->limits.
system.
vcomax =
MINFO
->limits.
video.
vcomax = 600000;
MINFO
->limits.
pixel.
vcomin =
MINFO
->limits.
system.
vcomin =
MINFO
->limits.
video.
vcomin = 256000;
MINFO
->values.
pll.
system =
MINFO
->values.
pll.
video = 284000;
MINFO
->values.
reg.
opt = 0x404A1160;
MINFO
->values.
reg.
opt2 = 0x0000AC00;
MINFO
->values.
reg.
opt3 = 0x0090A409;
MINFO
->values.
reg.
mctlwtst_core =
MINFO
->values.
reg.
mctlwtst = 0x0C81462B;
MINFO
->values.
reg.
memmisc = 0x80000004;
MINFO
->values.
reg.
memrdbk = 0x01001103;
MINFO
->features.
pll.
ref_freq = 27000;
MINFO
->values.
memory.
ddr = 1;
MINFO
->values.
memory.
dll = 1;
MINFO
->values.
memory.
emrswen = 1;
MINFO
->values.
reg.
maccess = 0x00004000;
}
static int matroxfb_set_limits
(WPMINFO
const struct matrox_bios
* bd
) {
unsigned int pins_version
;
static const unsigned int pinslen
[] = { 64, 64, 64, 128, 128 };
switch (ACCESS_FBINFO
(chip
)) {
case MGA_2064
: default_pins1
(PMINFO2
); break;
case MGA_2164
:
case MGA_1064
:
case MGA_1164
: default_pins2
(PMINFO2
); break;
case MGA_G100
:
case MGA_G200
: default_pins3
(PMINFO2
); break;
case MGA_G400
: default_pins4
(PMINFO2
); break;
case MGA_G450
:
case MGA_G550
: default_pins5
(PMINFO2
); break;
}
if (!bd
->bios_valid
) {
printk
(KERN_INFO
"matroxfb: Your Matrox device does not have BIOS\n");
return -1;
}
if (bd
->pins_len
< 64) {
printk
(KERN_INFO
"matroxfb: BIOS on your Matrox device does not contain powerup info\n");
return -1;
}
if (bd
->pins
[0] == 0x2E && bd
->pins
[1] == 0x41) {
pins_version
= bd
->pins
[5];
if (pins_version
< 2 || pins_version
> 5) {
printk
(KERN_INFO
"matroxfb: Unknown version (%u) of powerup info\n", pins_version
);
return -1;
}
} else {
pins_version
= 1;
}
if (bd
->pins_len
!= pinslen
[pins_version
- 1]) {
printk
(KERN_INFO
"matroxfb: Invalid powerup info\n");
return -1;
}
switch (pins_version
) {
case 1:
return parse_pins1
(PMINFO bd
);
case 2:
return parse_pins2
(PMINFO bd
);
case 3:
return parse_pins3
(PMINFO bd
);
case 4:
return parse_pins4
(PMINFO bd
);
case 5:
return parse_pins5
(PMINFO bd
);
default:
printk
(KERN_DEBUG
"matroxfb: Powerup info version %u is not yet supported\n", pins_version
);
return -1;
}
}
void matroxfb_read_pins
(WPMINFO2
) {
u32 opt
;
u32 biosbase
;
u32 fbbase
;
struct pci_dev
* pdev
= ACCESS_FBINFO
(pcidev
);
memset(&ACCESS_FBINFO
(bios
), 0, sizeof(ACCESS_FBINFO
(bios
)));
pci_read_config_dword
(pdev
, PCI_OPTION_REG
, &opt
);
pci_write_config_dword
(pdev
, PCI_OPTION_REG
, opt
| PCI_OPTION_ENABLE_ROM
);
pci_read_config_dword
(pdev
, PCI_ROM_ADDRESS
, &biosbase
);
pci_read_config_dword
(pdev
, ACCESS_FBINFO
(devflags.
fbResource), &fbbase
);
pci_write_config_dword
(pdev
, PCI_ROM_ADDRESS
, (fbbase
& PCI_ROM_ADDRESS_MASK
) | PCI_ROM_ADDRESS_ENABLE
);
parse_bios
(vaddr_va
(ACCESS_FBINFO
(video
).
vbase), &ACCESS_FBINFO
(bios
));
pci_write_config_dword
(pdev
, PCI_ROM_ADDRESS
, biosbase
);
pci_write_config_dword
(pdev
, PCI_OPTION_REG
, opt
);
#ifdef CONFIG_X86
if (!ACCESS_FBINFO
(bios
).
bios_valid) {
unsigned char* b
;
b
= ioremap
(0x000C0000, 65536);
if (!b
) {
printk
(KERN_INFO
"matroxfb: Unable to map legacy BIOS\n");
} else {
unsigned int ven
= readb
(b
+0x64+0) | (readb
(b
+0x64+1) << 8);
unsigned int dev
= readb
(b
+0x64+2) | (readb
(b
+0x64+3) << 8);
if (ven
!= pdev
->vendor
|| dev
!= pdev
->device
) {
printk
(KERN_INFO
"matroxfb: Legacy BIOS is for %04X:%04X, while this device is %04X:%04X\n",
ven
, dev
, pdev
->vendor
, pdev
->device
);
} else {
parse_bios
(b
, &ACCESS_FBINFO
(bios
));
}
iounmap
(b
);
}
}
#endif
matroxfb_set_limits
(PMINFO
&ACCESS_FBINFO
(bios
));
}
EXPORT_SYMBOL
(matroxfb_DAC_in
);
EXPORT_SYMBOL
(matroxfb_DAC_out
);
EXPORT_SYMBOL
(matroxfb_var2my
);
EXPORT_SYMBOL
(matroxfb_PLL_calcclock
);
#ifndef CONFIG_FB_MATROX_MULTIHEAD
struct matrox_fb_info matroxfb_global_mxinfo
;
EXPORT_SYMBOL
(matroxfb_global_mxinfo
);
#endif
EXPORT_SYMBOL
(matroxfb_vgaHWinit
); /* DAC1064, Ti3026 */
EXPORT_SYMBOL
(matroxfb_vgaHWrestore
); /* DAC1064, Ti3026 */
EXPORT_SYMBOL
(matroxfb_read_pins
);
MODULE_AUTHOR
("(c) 1999-2002 Petr Vandrovec <vandrove@vc.cvut.cz>");
MODULE_DESCRIPTION
("Miscellaneous support for Matrox video cards");
MODULE_LICENSE
("GPL");