3336. Fx up new MMIO macros (#3337, Matt Grossman).
3335. Clean up compiler warnings in lib/font/bitmap (#3411, Matt Grossman).
3334. TGA fixes, add sync on green (#3410, Matt Grossman).
3333. Fix NULL pointer dereference in libXaw (#3406, Christopher Sekiya).
3332. Add Rage128 support (#3405, Rik Faith, funded by ATI).
3331. Add MTRR support for NetBSD and OpenBSD. Add new NetBSD aperture
driver (#3404, Matthieu Herrb).
3330. Xterm patch #121 (#3402, Thomas Dickey).
3329. Rendition driver bugfixes and alpha related cleanups (#3400, Dejan
Ilic, Marc Langenbach, Egbert Eich).
3328. Add void input device (#3392, Frederic Lepied).
3327. Changed the Xon serial option to be able to select xon/xoff for
input, output or both. Add support for Graphire models. Change wacom
init phase to use new Xoff option (#3391, Frederic Lepied).
3326. Change the SwapAxes option to SwapXY in elographics/microtouch driver
to match an already existing option in the Dynapro driver. Add a Focus
class capability to the elographics driver (#3395, Patrick Lecoanet).
3325. Update mouse rate handling (#3388, Harald Koenig).
3324. Fix NULL pointer dereference in misprite.c (#3380, Edward Wang).
3323. Add FBDev and ShadowFB support to glint driver. Add new option
"NoWriteBitmap" (#3383, Michel Daenzer).
3322. Update SuperProbe to handle S3 Savage4, Savage200 and clean up
Trio3D/Savage3D detection (#3382,3384 Harald Koenig).
3321. Add new framebuffer code and tiny X DDX architecture (#3379, Keith
Packard).
3320. Add DGA2 documentation (#3378, Mark Vojkovich).
3319. Update XFree86 manpage wrt -bpp/-depth/-fbbpp (#3377, Andy Isaacson).
3318. Make SuperProbe check primary cards, only (#3374, Harald Koenig).
3317. Add SilkenMouse to *BSD (#3373, Matthieu Herrb).
3316. Allow SilkenMouse to work if not all drivers of an OS support SIGIO
(#3372, Keith Packard).
3315. Fix a few problems in TGA driver and add support for backing store
and SilkenMouse (#3371, Matt Grossman).
3314. Add smarter scheduler (#3370, Keith Packard).
3313. Xterm patch #120 (#3369, Thomas Dickey).
3312. Enable xf86SetKbdRate function on Solaris 8 (#3364, David Holland).
3311. Fix some bugs and add acceleration to Rendition server (#3360, Dejan
Ilic).
3310. Make raw DDC information available as properties in the root window
(#3357, Andrew Aitchison).
3309. Fix for xf86CreateRootWindow (#3355, Andrew Aitchison).
3308. Add manpage for the chips driver (#3353, David Bateman).
3307. Update contact info (#3352, Andrew van der Stock).
3306. Add kbd rate support for Linux (#3363, Harald Koenig).
3305. Update Portuguese XKB map (#3351, Joao Esteves, Francisco Colaco).
3304. Fix text clipping in 3dfx driver (#3349, Henrik Harmsen).
3303. Fix S3 ViRGE hw cursor (#3348, Harald Koenig).
3302. Fix clipping in 3dfx driver (#3342, Daryll Strauss).
3301. Enable SilkenMouse for 3dfx driver (#3341, Henrik Harmsen).
3300. Enable SIGIO support on LynxOS (#3339, Thomas Mueller).
3299. Get TRUE defined in sigio.c. Fix xterm compile problem on ISC (#3338,
Michael Rohleder).
3298. Correct DPMS suspend/standby modes for 3dfx driver (#3336, Henrik
Harmsen)
3297. Xterm patch #119 (#3335, Thomas Dickey).
1999-11-19 14:54:06 +01:00
|
|
|
|
/*
|
2000-02-23 21:30:15 +01:00
|
|
|
|
* Id: sisclock.c,v 1.1 1999/11/02 08:17:24 keithp Exp $
|
3336. Fx up new MMIO macros (#3337, Matt Grossman).
3335. Clean up compiler warnings in lib/font/bitmap (#3411, Matt Grossman).
3334. TGA fixes, add sync on green (#3410, Matt Grossman).
3333. Fix NULL pointer dereference in libXaw (#3406, Christopher Sekiya).
3332. Add Rage128 support (#3405, Rik Faith, funded by ATI).
3331. Add MTRR support for NetBSD and OpenBSD. Add new NetBSD aperture
driver (#3404, Matthieu Herrb).
3330. Xterm patch #121 (#3402, Thomas Dickey).
3329. Rendition driver bugfixes and alpha related cleanups (#3400, Dejan
Ilic, Marc Langenbach, Egbert Eich).
3328. Add void input device (#3392, Frederic Lepied).
3327. Changed the Xon serial option to be able to select xon/xoff for
input, output or both. Add support for Graphire models. Change wacom
init phase to use new Xoff option (#3391, Frederic Lepied).
3326. Change the SwapAxes option to SwapXY in elographics/microtouch driver
to match an already existing option in the Dynapro driver. Add a Focus
class capability to the elographics driver (#3395, Patrick Lecoanet).
3325. Update mouse rate handling (#3388, Harald Koenig).
3324. Fix NULL pointer dereference in misprite.c (#3380, Edward Wang).
3323. Add FBDev and ShadowFB support to glint driver. Add new option
"NoWriteBitmap" (#3383, Michel Daenzer).
3322. Update SuperProbe to handle S3 Savage4, Savage200 and clean up
Trio3D/Savage3D detection (#3382,3384 Harald Koenig).
3321. Add new framebuffer code and tiny X DDX architecture (#3379, Keith
Packard).
3320. Add DGA2 documentation (#3378, Mark Vojkovich).
3319. Update XFree86 manpage wrt -bpp/-depth/-fbbpp (#3377, Andy Isaacson).
3318. Make SuperProbe check primary cards, only (#3374, Harald Koenig).
3317. Add SilkenMouse to *BSD (#3373, Matthieu Herrb).
3316. Allow SilkenMouse to work if not all drivers of an OS support SIGIO
(#3372, Keith Packard).
3315. Fix a few problems in TGA driver and add support for backing store
and SilkenMouse (#3371, Matt Grossman).
3314. Add smarter scheduler (#3370, Keith Packard).
3313. Xterm patch #120 (#3369, Thomas Dickey).
3312. Enable xf86SetKbdRate function on Solaris 8 (#3364, David Holland).
3311. Fix some bugs and add acceleration to Rendition server (#3360, Dejan
Ilic).
3310. Make raw DDC information available as properties in the root window
(#3357, Andrew Aitchison).
3309. Fix for xf86CreateRootWindow (#3355, Andrew Aitchison).
3308. Add manpage for the chips driver (#3353, David Bateman).
3307. Update contact info (#3352, Andrew van der Stock).
3306. Add kbd rate support for Linux (#3363, Harald Koenig).
3305. Update Portuguese XKB map (#3351, Joao Esteves, Francisco Colaco).
3304. Fix text clipping in 3dfx driver (#3349, Henrik Harmsen).
3303. Fix S3 ViRGE hw cursor (#3348, Harald Koenig).
3302. Fix clipping in 3dfx driver (#3342, Daryll Strauss).
3301. Enable SilkenMouse for 3dfx driver (#3341, Henrik Harmsen).
3300. Enable SIGIO support on LynxOS (#3339, Thomas Mueller).
3299. Get TRUE defined in sigio.c. Fix xterm compile problem on ISC (#3338,
Michael Rohleder).
3298. Correct DPMS suspend/standby modes for 3dfx driver (#3336, Henrik
Harmsen)
3297. Xterm patch #119 (#3335, Thomas Dickey).
1999-11-19 14:54:06 +01:00
|
|
|
|
*
|
|
|
|
|
* Copyright <EFBFBD> 1999 Keith Packard
|
|
|
|
|
*
|
|
|
|
|
* Permission to use, copy, modify, distribute, and sell this software and its
|
|
|
|
|
* documentation for any purpose is hereby granted without fee, provided that
|
|
|
|
|
* the above copyright notice appear in all copies and that both that
|
|
|
|
|
* copyright notice and this permission notice appear in supporting
|
|
|
|
|
* documentation, and that the name of Keith Packard not be used in
|
|
|
|
|
* advertising or publicity pertaining to distribution of the software without
|
|
|
|
|
* specific, written prior permission. Keith Packard makes no
|
|
|
|
|
* representations about the suitability of this software for any purpose. It
|
|
|
|
|
* is provided "as is" without express or implied warranty.
|
|
|
|
|
*
|
|
|
|
|
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
|
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
|
|
|
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|
|
|
|
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
|
|
|
|
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
|
|
|
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
|
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
|
*/
|
2000-02-23 21:30:15 +01:00
|
|
|
|
/* $XFree86: xc/programs/Xserver/hw/kdrive/sis530/sisclock.c,v 1.1 1999/11/19 13:53:59 hohndel Exp $ */
|
3336. Fx up new MMIO macros (#3337, Matt Grossman).
3335. Clean up compiler warnings in lib/font/bitmap (#3411, Matt Grossman).
3334. TGA fixes, add sync on green (#3410, Matt Grossman).
3333. Fix NULL pointer dereference in libXaw (#3406, Christopher Sekiya).
3332. Add Rage128 support (#3405, Rik Faith, funded by ATI).
3331. Add MTRR support for NetBSD and OpenBSD. Add new NetBSD aperture
driver (#3404, Matthieu Herrb).
3330. Xterm patch #121 (#3402, Thomas Dickey).
3329. Rendition driver bugfixes and alpha related cleanups (#3400, Dejan
Ilic, Marc Langenbach, Egbert Eich).
3328. Add void input device (#3392, Frederic Lepied).
3327. Changed the Xon serial option to be able to select xon/xoff for
input, output or both. Add support for Graphire models. Change wacom
init phase to use new Xoff option (#3391, Frederic Lepied).
3326. Change the SwapAxes option to SwapXY in elographics/microtouch driver
to match an already existing option in the Dynapro driver. Add a Focus
class capability to the elographics driver (#3395, Patrick Lecoanet).
3325. Update mouse rate handling (#3388, Harald Koenig).
3324. Fix NULL pointer dereference in misprite.c (#3380, Edward Wang).
3323. Add FBDev and ShadowFB support to glint driver. Add new option
"NoWriteBitmap" (#3383, Michel Daenzer).
3322. Update SuperProbe to handle S3 Savage4, Savage200 and clean up
Trio3D/Savage3D detection (#3382,3384 Harald Koenig).
3321. Add new framebuffer code and tiny X DDX architecture (#3379, Keith
Packard).
3320. Add DGA2 documentation (#3378, Mark Vojkovich).
3319. Update XFree86 manpage wrt -bpp/-depth/-fbbpp (#3377, Andy Isaacson).
3318. Make SuperProbe check primary cards, only (#3374, Harald Koenig).
3317. Add SilkenMouse to *BSD (#3373, Matthieu Herrb).
3316. Allow SilkenMouse to work if not all drivers of an OS support SIGIO
(#3372, Keith Packard).
3315. Fix a few problems in TGA driver and add support for backing store
and SilkenMouse (#3371, Matt Grossman).
3314. Add smarter scheduler (#3370, Keith Packard).
3313. Xterm patch #120 (#3369, Thomas Dickey).
3312. Enable xf86SetKbdRate function on Solaris 8 (#3364, David Holland).
3311. Fix some bugs and add acceleration to Rendition server (#3360, Dejan
Ilic).
3310. Make raw DDC information available as properties in the root window
(#3357, Andrew Aitchison).
3309. Fix for xf86CreateRootWindow (#3355, Andrew Aitchison).
3308. Add manpage for the chips driver (#3353, David Bateman).
3307. Update contact info (#3352, Andrew van der Stock).
3306. Add kbd rate support for Linux (#3363, Harald Koenig).
3305. Update Portuguese XKB map (#3351, Joao Esteves, Francisco Colaco).
3304. Fix text clipping in 3dfx driver (#3349, Henrik Harmsen).
3303. Fix S3 ViRGE hw cursor (#3348, Harald Koenig).
3302. Fix clipping in 3dfx driver (#3342, Daryll Strauss).
3301. Enable SilkenMouse for 3dfx driver (#3341, Henrik Harmsen).
3300. Enable SIGIO support on LynxOS (#3339, Thomas Mueller).
3299. Get TRUE defined in sigio.c. Fix xterm compile problem on ISC (#3338,
Michael Rohleder).
3298. Correct DPMS suspend/standby modes for 3dfx driver (#3336, Henrik
Harmsen)
3297. Xterm patch #119 (#3335, Thomas Dickey).
1999-11-19 14:54:06 +01:00
|
|
|
|
|
|
|
|
|
#include "sis.h"
|
|
|
|
|
#include <stdio.h>
|
|
|
|
|
|
|
|
|
|
#define FREF 14318180
|
|
|
|
|
#define MIN_VCO FREF
|
|
|
|
|
#define MAX_VCO 230000000
|
|
|
|
|
#define MAX_PSN 0 /* no pre scaler for this chip */
|
|
|
|
|
#define TOLERANCE 0.01 /* search smallest M and N in this tolerance */
|
|
|
|
|
#define max_VLD 1
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Compute clock values given target frequency
|
|
|
|
|
*/
|
|
|
|
|
void
|
|
|
|
|
sisGetClock (unsigned long clock, SisCrtc *crtc)
|
|
|
|
|
{
|
|
|
|
|
unsigned char reg7, reg13, reg2a, reg2b;
|
|
|
|
|
int M, N, P, VLD;
|
|
|
|
|
|
|
|
|
|
int bestM, bestN, bestP, bestPSN, bestVLD;
|
|
|
|
|
double bestError, abest = 42.0, bestFout;
|
|
|
|
|
|
|
|
|
|
double Fvco, Fout;
|
|
|
|
|
double error, aerror;
|
|
|
|
|
|
|
|
|
|
double target = (double) clock;
|
|
|
|
|
|
|
|
|
|
int M_min = 2;
|
|
|
|
|
int M_max = 128;
|
|
|
|
|
|
|
|
|
|
int low_N = 2;
|
|
|
|
|
int high_N = 32;
|
|
|
|
|
int PSN = 1;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* fd = fref*(Numerator/Denumerator)*(Divider/PostScaler)
|
|
|
|
|
*
|
|
|
|
|
* M = Numerator [1:128]
|
|
|
|
|
* N = DeNumerator [1:32]
|
|
|
|
|
* VLD = Divider (Vco Loop Divider) : divide by 1, 2
|
|
|
|
|
* P = Post Scaler : divide by 1, 2, 3, 4
|
|
|
|
|
* PSN = Pre Scaler (Reference Divisor Select)
|
|
|
|
|
*
|
|
|
|
|
* result in vclk[]
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
P = 1;
|
|
|
|
|
if (target < MAX_VCO / 2)
|
|
|
|
|
P = 2;
|
|
|
|
|
if (target < MAX_VCO / 3)
|
|
|
|
|
P = 3;
|
|
|
|
|
if (target < MAX_VCO / 4)
|
|
|
|
|
P = 4;
|
|
|
|
|
if (target < MAX_VCO / 6)
|
|
|
|
|
P = 6;
|
|
|
|
|
if (target < MAX_VCO / 8)
|
|
|
|
|
P = 8;
|
|
|
|
|
|
|
|
|
|
Fvco = P * target;
|
|
|
|
|
|
|
|
|
|
for (N = low_N; N <= high_N; N++)
|
|
|
|
|
{
|
|
|
|
|
double M_desired = Fvco / FREF * N;
|
|
|
|
|
|
|
|
|
|
if (M_desired > M_max * max_VLD)
|
|
|
|
|
continue;
|
|
|
|
|
|
|
|
|
|
if ( M_desired > M_max )
|
|
|
|
|
{
|
|
|
|
|
M = (int)(M_desired / 2 + 0.5);
|
|
|
|
|
VLD = 2;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
M = (int)(M_desired + 0.5);
|
|
|
|
|
VLD = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
Fout = (double)FREF * (M * VLD)/(N * P);
|
|
|
|
|
error = (target - Fout) / target;
|
|
|
|
|
aerror = (error < 0) ? -error : error;
|
|
|
|
|
if (aerror < abest)
|
|
|
|
|
{
|
|
|
|
|
abest = aerror;
|
|
|
|
|
bestError = error;
|
|
|
|
|
bestM = M;
|
|
|
|
|
bestN = N;
|
|
|
|
|
bestP = P;
|
|
|
|
|
bestPSN = PSN;
|
|
|
|
|
bestVLD = VLD;
|
|
|
|
|
bestFout = Fout;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
crtc->vclk_numerator = bestM - 1;
|
|
|
|
|
crtc->vclk_divide_by_2 = bestVLD == 2;
|
|
|
|
|
|
|
|
|
|
crtc->vclk_denominator = bestN - 1;
|
|
|
|
|
switch (bestP) {
|
|
|
|
|
case 1:
|
|
|
|
|
crtc->vclk_post_scale = SIS_VCLK_POST_SCALE_1;
|
|
|
|
|
crtc->vclk_post_scale_2 = 0;
|
|
|
|
|
break;
|
|
|
|
|
case 2:
|
|
|
|
|
crtc->vclk_post_scale = SIS_VCLK_POST_SCALE_2;
|
|
|
|
|
crtc->vclk_post_scale_2 = 0;
|
|
|
|
|
break;
|
|
|
|
|
case 3:
|
|
|
|
|
crtc->vclk_post_scale = SIS_VCLK_POST_SCALE_3;
|
|
|
|
|
crtc->vclk_post_scale_2 = 0;
|
|
|
|
|
break;
|
|
|
|
|
case 4:
|
|
|
|
|
crtc->vclk_post_scale = SIS_VCLK_POST_SCALE_4;
|
|
|
|
|
crtc->vclk_post_scale_2 = 0;
|
|
|
|
|
break;
|
|
|
|
|
case 6:
|
|
|
|
|
crtc->vclk_post_scale = SIS_VCLK_POST_SCALE_3;
|
|
|
|
|
crtc->vclk_post_scale_2 = 1;
|
|
|
|
|
break;
|
|
|
|
|
case 8:
|
|
|
|
|
crtc->vclk_post_scale = SIS_VCLK_POST_SCALE_4;
|
|
|
|
|
crtc->vclk_post_scale_2 = 1;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
crtc->vclk_vco_gain = 1;
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Don't know how to set mclk for local frame buffer; for
|
|
|
|
|
* shared frame buffer, mclk is hardwired to bus speed (100MHz)?
|
|
|
|
|
*/
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
sisCalcMclk (SisCrtc *crtc)
|
|
|
|
|
{
|
|
|
|
|
int mclk, Numer, DeNumer;
|
|
|
|
|
double Divider, Scalar;
|
|
|
|
|
|
|
|
|
|
Numer = crtc->mclk_numerator;
|
|
|
|
|
DeNumer = crtc->mclk_denominator;
|
|
|
|
|
Divider = crtc->mclk_divide_by_2 ? 2.0 : 1.0;
|
|
|
|
|
Scalar = 1.0;
|
|
|
|
|
if (crtc->mclk_post_scale_2)
|
|
|
|
|
{
|
|
|
|
|
switch (crtc->mclk_post_scale) {
|
|
|
|
|
case 2:
|
|
|
|
|
Scalar = 6.0;
|
|
|
|
|
break;
|
|
|
|
|
case 3:
|
|
|
|
|
Scalar = 8.0;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
switch (crtc->mclk_post_scale) {
|
|
|
|
|
case 0:
|
|
|
|
|
Scalar = 1.0;
|
|
|
|
|
break;
|
|
|
|
|
case 1:
|
|
|
|
|
Scalar = 2.0;
|
|
|
|
|
break;
|
|
|
|
|
case 2:
|
|
|
|
|
Scalar = 3.0;
|
|
|
|
|
break;
|
|
|
|
|
case 3:
|
|
|
|
|
Scalar = 4.0;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
mclk = (int)(FREF*((double)(Numer+1)/(double)(DeNumer+1))*(Divider/Scalar));
|
|
|
|
|
|
|
|
|
|
return(mclk);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#define UMA_FACTOR 60
|
|
|
|
|
#define LFB_FACTOR 30 // Only if local frame buffer
|
|
|
|
|
#define SIS_SAYS_SO 0x1F // But how is the performance??
|
|
|
|
|
#define CRT_ENG_THRESH 0x0F // But how is the performance??
|
|
|
|
|
#define BUS_WIDTH 64
|
|
|
|
|
#define DFP_BUS_WIDTH 32 // rumour has it for digital flat panel ??
|
|
|
|
|
#define MEGAHZ (1<<20)
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
sisEngThresh (SisCrtc *crtc, unsigned long vclk, int bpp)
|
|
|
|
|
{
|
|
|
|
|
int threshlow, mclk;
|
|
|
|
|
|
|
|
|
|
mclk = sisCalcMclk(crtc) / 1000000;
|
|
|
|
|
vclk = vclk / 1000000;
|
|
|
|
|
threshlow = ((((UMA_FACTOR*vclk*bpp)/
|
|
|
|
|
(mclk*BUS_WIDTH))+1)/2)+4;
|
|
|
|
|
|
|
|
|
|
crtc->crt_cpu_threshold_low_0_3 = threshlow;
|
|
|
|
|
crtc->crt_cpu_threshold_low_4 = threshlow >> 4;
|
|
|
|
|
|
|
|
|
|
crtc->crt_cpu_threshold_high_0_3 = (SIS_SAYS_SO & 0xf);
|
|
|
|
|
crtc->crt_cpu_threshold_high_4 = 0;
|
|
|
|
|
|
|
|
|
|
crtc->crt_engine_threshold_high_0_3 = CRT_ENG_THRESH;
|
|
|
|
|
crtc->crt_engine_threshold_high_4 = 1;
|
|
|
|
|
|
|
|
|
|
crtc->ascii_attribute_threshold_0_2 = (SIS_SAYS_SO >> 4);
|
|
|
|
|
|
|
|
|
|
crtc->crt_threshold_full_control = SIS_CRT_64_STAGE_THRESHOLD;
|
|
|
|
|
}
|