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xserver/hw/xfree86/ramdac/TI.c

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/*
* Copyright 1998 by Alan Hourihane, Wigan, England.
*
* 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 Alan Hourihane not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Alan Hourihane makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL ALAN HOURIHANE 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.
*
* Authors: Alan Hourihane, <alanh@fairlite.demon.co.uk>
*
* Modified from IBM.c to support TI RAMDAC routines
* by Jens Owen, <jens@tungstengraphics.com>.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "xf86.h"
#include "xf86_OSproc.h"
#include "xf86Cursor.h"
#define INIT_TI_RAMDAC_INFO
#include "TIPriv.h"
#include "xf86RamDacPriv.h"
/* The following values are in kHz */
#define TI_MIN_VCO_FREQ 110000
#define TI_MAX_VCO_FREQ 220000
unsigned long
TIramdacCalculateMNPForClock(
unsigned long RefClock, /* In 100Hz units */
unsigned long ReqClock, /* In 100Hz units */
char IsPixClock, /* boolean, is this the pixel or the sys clock */
unsigned long MinClock, /* Min VCO rating */
unsigned long MaxClock, /* Max VCO rating */
unsigned long *rM, /* M Out */
unsigned long *rN, /* N Out */
unsigned long *rP /* Min P In, P Out */
)
{
unsigned long n, p;
unsigned long best_m = 0, best_n = 0;
double VCO, IntRef = (double)RefClock;
double m_err, inc_m, calc_m;
unsigned long ActualClock;
/* Make sure that MinClock <= ReqClock <= MaxClock */
if ( ReqClock < MinClock)
ReqClock = MinClock;
if ( ReqClock > MaxClock )
ReqClock = MaxClock;
/*
* ActualClock = VCO / 2 ^ p
* Choose p so that TI_MIN_VCO_FREQ <= VCO <= TI_MAX_VCO_FREQ
* Note that since TI_MAX_VCO_FREQ = 2 * TI_MIN_VCO_FREQ
* we don't have to bother checking for this maximum limit.
*/
VCO = (double)ReqClock;
for ( p = 0; p < 3 && VCO < TI_MIN_VCO_FREQ; ( p )++ )
VCO *= 2.0;
/*
* We avoid doing multiplications by ( 65 - n ),
* and add an increment instead - this keeps any error small.
*/
inc_m = VCO / ( IntRef * 8.0 );
/* Initial value of calc_m for the loop */
calc_m = inc_m + inc_m + inc_m;
/* Initial amount of error for an integer - impossibly large */
m_err = 2.0;
/* Search for the closest INTEGER value of ( 65 - m ) */
for ( n = 3; n <= 25; ( n )++, calc_m += inc_m ) {
/* Ignore values of ( 65 - m ) which we can't use */
if ( calc_m < 3.0 || calc_m > 64.0 )
continue;
/*
* Pick the closest INTEGER (has smallest fractional part).
* The optimizer should clean this up for us.
*/
if (( calc_m - ( int ) calc_m ) < m_err ) {
m_err = calc_m - ( int ) calc_m;
best_m = ( int ) calc_m;
best_n = n;
}
}
/* 65 - ( 65 - x ) = x */
*rM = 65 - best_m;
*rN = 65 - best_n;
*rP = p;
/* Now all the calculations can be completed */
VCO = 8.0 * IntRef * best_m / best_n;
ActualClock = VCO / ( 1 << p );
#ifdef DEBUG
ErrorF( "f_out=%ld f_vco=%.1f n=%d m=%d p=%d\n",
ActualClock, VCO, *rN, *rM, *rP);
#endif
return (ActualClock);
}
void
TIramdacRestore(ScrnInfoPtr pScrn, RamDacRecPtr ramdacPtr,
RamDacRegRecPtr ramdacReg)
{
int i;
unsigned long status;
/* Here we pass a short, so that we can evaluate a mask too
* So that the mask is the high byte and the data the low byte
* Order is important
*/
TIRESTORE(TIDAC_latch_ctrl);
TIRESTORE(TIDAC_true_color_ctrl);
TIRESTORE(TIDAC_multiplex_ctrl);
TIRESTORE(TIDAC_clock_select);
TIRESTORE(TIDAC_palette_page);
TIRESTORE(TIDAC_general_ctrl);
TIRESTORE(TIDAC_misc_ctrl);
/* 0x2A & 0x2B are reserved */
TIRESTORE(TIDAC_key_over_low);
TIRESTORE(TIDAC_key_over_high);
TIRESTORE(TIDAC_key_red_low);
TIRESTORE(TIDAC_key_red_high);
TIRESTORE(TIDAC_key_green_low);
TIRESTORE(TIDAC_key_green_high);
TIRESTORE(TIDAC_key_blue_low);
TIRESTORE(TIDAC_key_blue_high);
TIRESTORE(TIDAC_key_ctrl);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_clock_ctrl, 0, 0x30);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_clock_ctrl, 0, 0x38);
TIRESTORE(TIDAC_clock_ctrl);
TIRESTORE(TIDAC_sense_test);
TIRESTORE(TIDAC_ind_curs_ctrl);
/* only restore clocks if they were valid to begin with */
if (ramdacReg->DacRegs[TIDAC_PIXEL_VALID]) {
/* Reset pixel clock */
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_addr, 0, 0x22);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_pixel_data, 0, 0x3c);
/* Restore N, M & P values for pixel clocks */
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_addr, 0, 0);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_pixel_data, 0,
ramdacReg->DacRegs[TIDAC_PIXEL_N]);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_pixel_data, 0,
ramdacReg->DacRegs[TIDAC_PIXEL_M]);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_pixel_data, 0,
ramdacReg->DacRegs[TIDAC_PIXEL_P]);
/* wait for pixel clock to lock */
i = 1000000;
do {
status = (*ramdacPtr->ReadDAC)(pScrn, TIDAC_pll_pixel_data);
} while ((!(status & 0x40)) && (--i));
if (!(status & 0x40)) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Pixel clock setup timed out\n");
return;
}
}
if (ramdacReg->DacRegs[TIDAC_LOOP_VALID]) {
/* Reset loop clock */
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_addr, 0, 0x22);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_loop_data, 0, 0x70);
/* Restore N, M & P values for pixel clocks */
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_addr, 0, 0);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_loop_data, 0,
ramdacReg->DacRegs[TIDAC_LOOP_N]);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_loop_data, 0,
ramdacReg->DacRegs[TIDAC_LOOP_M]);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_loop_data, 0,
ramdacReg->DacRegs[TIDAC_LOOP_P]);
/* wait for loop clock to lock */
i = 1000000;
do {
status = (*ramdacPtr->ReadDAC)(pScrn, TIDAC_pll_loop_data);
} while ((!(status & 0x40)) && (--i));
if (!(status & 0x40)) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Loop clock setup timed out\n");
return;
}
}
/* restore palette */
(*ramdacPtr->WriteAddress)(pScrn, 0);
#ifndef NOT_DONE
for (i=0;i<768;i++)
(*ramdacPtr->WriteData)(pScrn, ramdacReg->DAC[i]);
#else
(*ramdacPtr->WriteData)(pScrn, 0);
(*ramdacPtr->WriteData)(pScrn, 0);
(*ramdacPtr->WriteData)(pScrn, 0);
for (i=0;i<765;i++)
(*ramdacPtr->WriteData)(pScrn, 0xff);
#endif
}
void
TIramdacSave(ScrnInfoPtr pScrn, RamDacRecPtr ramdacPtr,
RamDacRegRecPtr ramdacReg)
{
int i;
(*ramdacPtr->ReadAddress)(pScrn, 0);
for (i=0;i<768;i++)
ramdacReg->DAC[i] = (*ramdacPtr->ReadData)(pScrn);
/* Read back N,M and P values for pixel clock */
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_addr, 0, 0);
ramdacReg->DacRegs[TIDAC_PIXEL_N] =
(*ramdacPtr->ReadDAC)(pScrn, TIDAC_pll_pixel_data);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_addr, 0, 0x11);
ramdacReg->DacRegs[TIDAC_PIXEL_M] =
(*ramdacPtr->ReadDAC)(pScrn, TIDAC_pll_pixel_data);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_addr, 0, 0x22);
ramdacReg->DacRegs[TIDAC_PIXEL_P] =
(*ramdacPtr->ReadDAC)(pScrn, TIDAC_pll_pixel_data);
/* Read back N,M and P values for loop clock */
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_addr, 0, 0);
ramdacReg->DacRegs[TIDAC_LOOP_N] =
(*ramdacPtr->ReadDAC)(pScrn, TIDAC_pll_loop_data);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_addr, 0, 0x11);
ramdacReg->DacRegs[TIDAC_LOOP_M] =
(*ramdacPtr->ReadDAC)(pScrn, TIDAC_pll_loop_data);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_pll_addr, 0, 0x22);
ramdacReg->DacRegs[TIDAC_LOOP_P] =
(*ramdacPtr->ReadDAC)(pScrn, TIDAC_pll_loop_data);
/* Order is important */
TISAVE(TIDAC_latch_ctrl);
TISAVE(TIDAC_true_color_ctrl);
TISAVE(TIDAC_multiplex_ctrl);
TISAVE(TIDAC_clock_select);
TISAVE(TIDAC_palette_page);
TISAVE(TIDAC_general_ctrl);
TISAVE(TIDAC_misc_ctrl);
/* 0x2A & 0x2B are reserved */
TISAVE(TIDAC_key_over_low);
TISAVE(TIDAC_key_over_high);
TISAVE(TIDAC_key_red_low);
TISAVE(TIDAC_key_red_high);
TISAVE(TIDAC_key_green_low);
TISAVE(TIDAC_key_green_high);
TISAVE(TIDAC_key_blue_low);
TISAVE(TIDAC_key_blue_high);
TISAVE(TIDAC_key_ctrl);
TISAVE(TIDAC_clock_ctrl);
TISAVE(TIDAC_sense_test);
TISAVE(TIDAC_ind_curs_ctrl);
}
RamDacHelperRecPtr
TIramdacProbe(ScrnInfoPtr pScrn, RamDacSupportedInfoRecPtr ramdacs)
{
RamDacRecPtr ramdacPtr = RAMDACSCRPTR(pScrn);
RamDacHelperRecPtr ramdacHelperPtr = NULL;
Bool RamDacIsSupported = FALSE;
int TIramdac_ID = -1;
int i;
unsigned char id, rev, rev2, id2;
/* read ID and revision */
rev = (*ramdacPtr->ReadDAC)(pScrn, TIDAC_rev);
id = (*ramdacPtr->ReadDAC)(pScrn, TIDAC_id);
/* check if ID and revision are read only */
(*ramdacPtr->WriteDAC)(pScrn, ~rev, 0, TIDAC_rev);
(*ramdacPtr->WriteDAC)(pScrn, ~id, 0, TIDAC_id);
rev2 = (*ramdacPtr->ReadDAC)(pScrn, TIDAC_rev);
id2 = (*ramdacPtr->ReadDAC)(pScrn, TIDAC_id);
switch (id) {
case TIDAC_TVP_3030_ID:
if (id == id2 && rev == rev2) /* check for READ ONLY */
TIramdac_ID = TI3030_RAMDAC;
break;
case TIDAC_TVP_3026_ID:
if (id == id2 && rev == rev2) /* check for READ ONLY */
TIramdac_ID = TI3026_RAMDAC;
break;
}
(*ramdacPtr->WriteDAC)(pScrn, rev, 0, TIDAC_rev);
(*ramdacPtr->WriteDAC)(pScrn, id, 0, TIDAC_id);
if (TIramdac_ID == -1) {
xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
"Cannot determine TI RAMDAC type, aborting\n");
return NULL;
} else {
xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
"Attached RAMDAC is %s\n", TIramdacDeviceInfo[TIramdac_ID&0xFFFF].DeviceName);
}
for (i=0;ramdacs[i].token != -1;i++) {
if (ramdacs[i].token == TIramdac_ID)
RamDacIsSupported = TRUE;
}
if (!RamDacIsSupported) {
xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
"This TI RAMDAC is NOT supported by this driver, aborting\n");
return NULL;
}
ramdacHelperPtr = RamDacHelperCreateInfoRec();
switch (TIramdac_ID) {
case TI3030_RAMDAC:
ramdacHelperPtr->SetBpp = TIramdac3030SetBpp;
ramdacHelperPtr->HWCursorInit = TIramdacHWCursorInit;
break;
case TI3026_RAMDAC:
ramdacHelperPtr->SetBpp = TIramdac3026SetBpp;
ramdacHelperPtr->HWCursorInit = TIramdacHWCursorInit;
break;
}
ramdacPtr->RamDacType = TIramdac_ID;
ramdacHelperPtr->RamDacType = TIramdac_ID;
ramdacHelperPtr->Save = TIramdacSave;
ramdacHelperPtr->Restore = TIramdacRestore;
return ramdacHelperPtr;
}
void
TIramdac3026SetBpp(ScrnInfoPtr pScrn, RamDacRegRecPtr ramdacReg)
{
switch (pScrn->bitsPerPixel) {
case 32:
/* order is important */
ramdacReg->DacRegs[TIDAC_latch_ctrl] = 0x06;
ramdacReg->DacRegs[TIDAC_true_color_ctrl] = 0x46;
ramdacReg->DacRegs[TIDAC_multiplex_ctrl] = 0x5c;
ramdacReg->DacRegs[TIDAC_clock_select] = 0x05;
ramdacReg->DacRegs[TIDAC_palette_page] = 0x00;
ramdacReg->DacRegs[TIDAC_general_ctrl] = 0x10;
ramdacReg->DacRegs[TIDAC_misc_ctrl] = 0x3C;
/* 0x2A & 0x2B are reserved */
ramdacReg->DacRegs[TIDAC_key_over_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_over_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_high] = 0x00;
ramdacReg->DacRegs[TIDAC_key_ctrl] = 0x10;
ramdacReg->DacRegs[TIDAC_sense_test] = 0x00;
if (pScrn->overlayFlags & OVERLAY_8_32_PLANAR) {
ramdacReg->DacRegs[TIDAC_true_color_ctrl] = 0x06;
ramdacReg->DacRegs[TIDAC_misc_ctrl] = 0x3C;
ramdacReg->DacRegs[TIDAC_key_ctrl] = 0x01;
}
ramdacReg->DacRegs[TIDAC_ind_curs_ctrl] = 0x00;
break;
case 24:
/* order is important */
ramdacReg->DacRegs[TIDAC_latch_ctrl] = 0x06;
ramdacReg->DacRegs[TIDAC_true_color_ctrl] = 0x56;
ramdacReg->DacRegs[TIDAC_multiplex_ctrl] = 0x58;
ramdacReg->DacRegs[TIDAC_clock_select] = 0x25;
ramdacReg->DacRegs[TIDAC_palette_page] = 0x00;
ramdacReg->DacRegs[TIDAC_general_ctrl] = 0x00;
ramdacReg->DacRegs[TIDAC_misc_ctrl] = 0x2C;
/* 0x2A & 0x2B are reserved */
ramdacReg->DacRegs[TIDAC_key_over_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_over_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_high] = 0x00;
ramdacReg->DacRegs[TIDAC_key_ctrl] = 0x10;
ramdacReg->DacRegs[TIDAC_sense_test] = 0x00;
ramdacReg->DacRegs[TIDAC_ind_curs_ctrl] = 0x00;
break;
case 16:
/* order is important */
#if 0
/* Matrox driver uses this */
ramdacReg->DacRegs[TIDAC_latch_ctrl] = 0x07;
#else
ramdacReg->DacRegs[TIDAC_latch_ctrl] = 0x06;
#endif
if (pScrn->depth == 16) {
ramdacReg->DacRegs[TIDAC_true_color_ctrl] = 0x45;
} else {
ramdacReg->DacRegs[TIDAC_true_color_ctrl] = 0x44;
}
#if 0
/* Matrox driver uses this */
ramdacReg->DacRegs[TIDAC_multiplex_ctrl] = 0x50;
ramdacReg->DacRegs[TIDAC_clock_select] = 0x15;
ramdacReg->DacRegs[TIDAC_palette_page] = 0x00;
ramdacReg->DacRegs[TIDAC_general_ctrl] = 0x00;
#else
ramdacReg->DacRegs[TIDAC_multiplex_ctrl] = 0x54;
ramdacReg->DacRegs[TIDAC_clock_select] = 0x05;
ramdacReg->DacRegs[TIDAC_palette_page] = 0x00;
ramdacReg->DacRegs[TIDAC_general_ctrl] = 0x10;
#endif
ramdacReg->DacRegs[TIDAC_misc_ctrl] = 0x2C;
/* 0x2A & 0x2B are reserved */
ramdacReg->DacRegs[TIDAC_key_over_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_over_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_high] = 0x00;
ramdacReg->DacRegs[TIDAC_key_ctrl] = 0x10;
ramdacReg->DacRegs[TIDAC_sense_test] = 0x00;
ramdacReg->DacRegs[TIDAC_ind_curs_ctrl] = 0x00;
break;
case 8:
/* order is important */
ramdacReg->DacRegs[TIDAC_latch_ctrl] = 0x06;
ramdacReg->DacRegs[TIDAC_true_color_ctrl] = 0x80;
ramdacReg->DacRegs[TIDAC_multiplex_ctrl] = 0x4c;
ramdacReg->DacRegs[TIDAC_clock_select] = 0x05;
ramdacReg->DacRegs[TIDAC_palette_page] = 0x00;
ramdacReg->DacRegs[TIDAC_general_ctrl] = 0x10;
ramdacReg->DacRegs[TIDAC_misc_ctrl] = 0x1C;
/* 0x2A & 0x2B are reserved */
ramdacReg->DacRegs[TIDAC_key_over_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_over_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_low] = 0x00;
ramdacReg->DacRegs[TIDAC_key_blue_high] = 0x00;
ramdacReg->DacRegs[TIDAC_key_ctrl] = 0x00;
ramdacReg->DacRegs[TIDAC_sense_test] = 0x00;
ramdacReg->DacRegs[TIDAC_ind_curs_ctrl] = 0x00;
break;
}
}
void
TIramdac3030SetBpp(ScrnInfoPtr pScrn, RamDacRegRecPtr ramdacReg)
{
switch (pScrn->bitsPerPixel) {
case 32:
/* order is important */
ramdacReg->DacRegs[TIDAC_latch_ctrl] = 0x06;
ramdacReg->DacRegs[TIDAC_true_color_ctrl] = 0x46;
ramdacReg->DacRegs[TIDAC_multiplex_ctrl] = 0x5D;
ramdacReg->DacRegs[TIDAC_clock_select] = 0x05;
ramdacReg->DacRegs[TIDAC_palette_page] = 0x00;
ramdacReg->DacRegs[TIDAC_general_ctrl] = 0x10;
ramdacReg->DacRegs[TIDAC_misc_ctrl] = 0x3C;
/* 0x2A & 0x2B are reserved */
ramdacReg->DacRegs[TIDAC_key_over_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_over_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_high] = 0x00;
ramdacReg->DacRegs[TIDAC_key_ctrl] = 0x10;
ramdacReg->DacRegs[TIDAC_sense_test] = 0x00;
if (pScrn->overlayFlags & OVERLAY_8_32_PLANAR) {
ramdacReg->DacRegs[TIDAC_true_color_ctrl] = 0x06;
ramdacReg->DacRegs[TIDAC_misc_ctrl] = 0x3C;
ramdacReg->DacRegs[TIDAC_key_ctrl] = 0x01;
}
ramdacReg->DacRegs[TIDAC_ind_curs_ctrl] = 0x00;
break;
case 24:
/* order is important */
ramdacReg->DacRegs[TIDAC_latch_ctrl] = 0x06;
ramdacReg->DacRegs[TIDAC_true_color_ctrl] = 0x56;
ramdacReg->DacRegs[TIDAC_multiplex_ctrl] = 0x58;
ramdacReg->DacRegs[TIDAC_clock_select] = 0x25;
ramdacReg->DacRegs[TIDAC_palette_page] = 0x00;
ramdacReg->DacRegs[TIDAC_general_ctrl] = 0x00;
ramdacReg->DacRegs[TIDAC_misc_ctrl] = 0x2C;
/* 0x2A & 0x2B are reserved */
ramdacReg->DacRegs[TIDAC_key_over_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_over_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_high] = 0x00;
ramdacReg->DacRegs[TIDAC_key_ctrl] = 0x10;
ramdacReg->DacRegs[TIDAC_sense_test] = 0x00;
ramdacReg->DacRegs[TIDAC_ind_curs_ctrl] = 0x00;
break;
case 16:
/* order is important */
#if 0
/* Matrox driver uses this */
ramdacReg->DacRegs[TIDAC_latch_ctrl] = 0x07;
#else
ramdacReg->DacRegs[TIDAC_latch_ctrl] = 0x06;
#endif
if (pScrn->depth == 16) {
ramdacReg->DacRegs[TIDAC_true_color_ctrl] = 0x45;
} else {
ramdacReg->DacRegs[TIDAC_true_color_ctrl] = 0x44;
}
#if 0
/* Matrox driver uses this */
ramdacReg->DacRegs[TIDAC_multiplex_ctrl] = 0x50;
ramdacReg->DacRegs[TIDAC_clock_select] = 0x15;
ramdacReg->DacRegs[TIDAC_palette_page] = 0x00;
ramdacReg->DacRegs[TIDAC_general_ctrl] = 0x00;
#else
ramdacReg->DacRegs[TIDAC_multiplex_ctrl] = 0x55;
ramdacReg->DacRegs[TIDAC_clock_select] = 0x85;
ramdacReg->DacRegs[TIDAC_palette_page] = 0x00;
ramdacReg->DacRegs[TIDAC_general_ctrl] = 0x10;
#endif
ramdacReg->DacRegs[TIDAC_misc_ctrl] = 0x2C;
/* 0x2A & 0x2B are reserved */
ramdacReg->DacRegs[TIDAC_key_over_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_over_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_high] = 0x00;
ramdacReg->DacRegs[TIDAC_key_ctrl] = 0x10;
ramdacReg->DacRegs[TIDAC_sense_test] = 0x00;
ramdacReg->DacRegs[TIDAC_ind_curs_ctrl] = 0x00;
break;
case 8:
/* order is important */
ramdacReg->DacRegs[TIDAC_latch_ctrl] = 0x06;
ramdacReg->DacRegs[TIDAC_true_color_ctrl] = 0x80;
ramdacReg->DacRegs[TIDAC_multiplex_ctrl] = 0x4d;
ramdacReg->DacRegs[TIDAC_clock_select] = 0x05;
ramdacReg->DacRegs[TIDAC_palette_page] = 0x00;
ramdacReg->DacRegs[TIDAC_general_ctrl] = 0x10;
ramdacReg->DacRegs[TIDAC_misc_ctrl] = 0x1C;
/* 0x2A & 0x2B are reserved */
ramdacReg->DacRegs[TIDAC_key_over_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_over_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_red_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_low] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_green_high] = 0xFF;
ramdacReg->DacRegs[TIDAC_key_blue_low] = 0x00;
ramdacReg->DacRegs[TIDAC_key_blue_high] = 0x00;
ramdacReg->DacRegs[TIDAC_key_ctrl] = 0x00;
ramdacReg->DacRegs[TIDAC_sense_test] = 0x00;
ramdacReg->DacRegs[TIDAC_ind_curs_ctrl] = 0x00;
break;
}
}
static void
TIramdacShowCursor(ScrnInfoPtr pScrn)
{
RamDacRecPtr ramdacPtr = RAMDACSCRPTR(pScrn);
/* Enable cursor - X11 mode */
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_ind_curs_ctrl, 0, 0x03);
}
static void
TIramdacHideCursor(ScrnInfoPtr pScrn)
{
RamDacRecPtr ramdacPtr = RAMDACSCRPTR(pScrn);
/* Disable cursor - X11 mode */
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_ind_curs_ctrl, 0, 0x00);
}
static void
TIramdacSetCursorPosition(ScrnInfoPtr pScrn, int x, int y)
{
RamDacRecPtr ramdacPtr = RAMDACSCRPTR(pScrn);
x += 64;
y += 64;
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_CURS_XLOW, 0, x & 0xff);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_CURS_XHIGH, 0, (x >> 8) & 0x0f);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_CURS_YLOW, 0, y & 0xff);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_CURS_YHIGH, 0, (y >> 8) & 0x0f);
}
static void
TIramdacSetCursorColors(ScrnInfoPtr pScrn, int bg, int fg)
{
RamDacRecPtr ramdacPtr = RAMDACSCRPTR(pScrn);
/* Background color */
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_CURS_WRITE_ADDR, 0, 1);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_CURS_COLOR, 0, ((bg&0x00ff0000) >> 16));
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_CURS_COLOR, 0, ((bg&0x0000ff00) >> 8));
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_CURS_COLOR, 0, (bg&0x000000ff) );
/* Foreground color */
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_CURS_WRITE_ADDR, 0, 2);
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_CURS_COLOR, 0, ((fg&0x00ff0000) >> 16));
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_CURS_COLOR, 0, ((fg&0x0000ff00) >> 8));
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_CURS_COLOR, 0, (fg&0x000000ff) );
}
static void
TIramdacLoadCursorImage(ScrnInfoPtr pScrn, unsigned char *src)
{
RamDacRecPtr ramdacPtr = RAMDACSCRPTR(pScrn);
int i = 1024;
/* reset A9,A8 */
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_ind_curs_ctrl, 0, 0x00);
/* reset cursor RAM load address A7..A0 */
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_INDEX, 0x00, 0x00);
while(i--) {
/* NOT_DONE: might need a delay here */
(*ramdacPtr->WriteDAC)(pScrn, TIDAC_CURS_RAM_DATA, 0, *(src++));
}
}
static Bool
TIramdacUseHWCursor(ScreenPtr pScr, CursorPtr pCurs)
{
return TRUE;
}
void
TIramdacHWCursorInit(xf86CursorInfoPtr infoPtr)
{
infoPtr->MaxWidth = 64;
infoPtr->MaxHeight = 64;
infoPtr->Flags = HARDWARE_CURSOR_BIT_ORDER_MSBFIRST |
HARDWARE_CURSOR_TRUECOLOR_AT_8BPP |
HARDWARE_CURSOR_SOURCE_MASK_NOT_INTERLEAVED;
infoPtr->SetCursorColors = TIramdacSetCursorColors;
infoPtr->SetCursorPosition = TIramdacSetCursorPosition;
infoPtr->LoadCursorImage = TIramdacLoadCursorImage;
infoPtr->HideCursor = TIramdacHideCursor;
infoPtr->ShowCursor = TIramdacShowCursor;
infoPtr->UseHWCursor = TIramdacUseHWCursor;
}
void TIramdacLoadPalette(
ScrnInfoPtr pScrn,
int numColors,
int *indices,
LOCO *colors,
VisualPtr pVisual
){
RamDacRecPtr hwp = RAMDACSCRPTR(pScrn);
int i, index, shift;
if (pScrn->depth == 16) {
for(i = 0; i < numColors; i++) {
index = indices[i];
(*hwp->WriteAddress)(pScrn, index << 2);
(*hwp->WriteData)(pScrn, colors[index >> 1].red);
(*hwp->WriteData)(pScrn, colors[index].green);
(*hwp->WriteData)(pScrn, colors[index >> 1].blue);
if(index <= 31) {
(*hwp->WriteAddress)(pScrn, index << 3);
(*hwp->WriteData)(pScrn, colors[index].red);
(*hwp->WriteData)(pScrn, colors[(index << 1) + 1].green);
(*hwp->WriteData)(pScrn, colors[index].blue);
}
}
} else {
shift = (pScrn->depth == 15) ? 3 : 0;
for(i = 0; i < numColors; i++) {
index = indices[i];
(*hwp->WriteAddress)(pScrn, index << shift);
(*hwp->WriteData)(pScrn, colors[index].red);
(*hwp->WriteData)(pScrn, colors[index].green);
(*hwp->WriteData)(pScrn, colors[index].blue);
}
}
}
TIramdacLoadPaletteProc *TIramdacLoadPaletteWeak(void) {
return TIramdacLoadPalette;
}
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