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Diffstat (limited to 'src/video_out/vidix/drivers/sis_bridge.c')
-rw-r--r--src/video_out/vidix/drivers/sis_bridge.c835
1 files changed, 0 insertions, 835 deletions
diff --git a/src/video_out/vidix/drivers/sis_bridge.c b/src/video_out/vidix/drivers/sis_bridge.c
deleted file mode 100644
index f6916ae87..000000000
--- a/src/video_out/vidix/drivers/sis_bridge.c
+++ /dev/null
@@ -1,835 +0,0 @@
-/**
- Video bridge detection for SiS 300 and 310/325 series chips.
-
- Copyright 2003 Jake Page, Sugar Media.
-
- Based on SiS Xv driver:
- Copyright 2002-2003 by Thomas Winischhofer, Vienna, Austria.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-**/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include "libdha.h"
-
-#include "sis_regs.h"
-#include "sis_defs.h"
-
-void sis_init_video_bridge(void);
-
-static void sis_ddc2_delay(unsigned short delaytime)
-{
- unsigned short i;
- int temp;
-
- for (i = 0; i < delaytime; i++) {
- inSISIDXREG(SISSR, 0x05, temp);
- }
-}
-
-
-static int sis_do_sense(int tempbl, int tempbh, int tempcl, int tempch)
-{
- int temp;
-
- outSISIDXREG(SISPART4, 0x11, tempbl);
- temp = tempbh | tempcl;
- setSISIDXREG(SISPART4, 0x10, 0xe0, temp);
- //usleep(200000);
- sis_ddc2_delay(0x1000);
- tempch &= 0x7f;
- inSISIDXREG(SISPART4, 0x03, temp);
- temp ^= 0x0e;
- temp &= tempch;
- return (temp == tempch);
-}
-
-
-/* sense connected devices on 30x bridge */
-static void sis_sense_30x()
-{
- unsigned char backupP4_0d, backupP2_00, biosflag;
- unsigned char testsvhs_tempbl, testsvhs_tempbh;
- unsigned char testsvhs_tempcl, testsvhs_tempch;
- unsigned char testcvbs_tempbl, testcvbs_tempbh;
- unsigned char testcvbs_tempcl, testcvbs_tempch;
- unsigned char testvga2_tempbl, testvga2_tempbh;
- unsigned char testvga2_tempcl, testvga2_tempch;
- int myflag, result = 0, i, j, haveresult;
-#if 0
- unsigned short temp;
-#endif
-
- inSISIDXREG(SISPART4, 0x0d, backupP4_0d);
- outSISIDXREG(SISPART4, 0x0d, (backupP4_0d | 0x04));
-
- inSISIDXREG(SISPART2, 0x00, backupP2_00);
- outSISIDXREG(SISPART2, 0x00, (backupP2_00 | 0x1c));
-
- sis_do_sense(0, 0, 0, 0);
-
- if ((sis_vga_engine == SIS_315_VGA) ||
- (sis_device_id == DEVICE_SIS_300)) {
-#if 0
- if (0 /*pSiS->sishw_ext.UseROM */ ) {
- if (sis_vga_engine == SIS_300_VGA)
- temp = 0xfe;
- else {
- temp = 0xf3;
- if (sis_device_id == DEVICE_SIS_330)
- temp = 0x11b;
- }
- if (pSiS->BIOS[temp] & 0x08) {
- if (sis_verbose > 1) {
- printf
- ("[SiS] SiS30x: Video bridge has DVI-I TMDS/VGA combo connector\n");
- }
- orSISIDXREG(SISCR, 0x32, 0x80);
- } else {
- andSISIDXREG(SISCR, 0x32, 0x7f);
- }
- }
-#endif
- }
-
- if (sis_vga_engine == SIS_300_VGA) {
- if (0 /*pSiS->sishw_ext.UseROM */ ) {
-#if 0
- testvga2_tempbh = pSiS->BIOS[0xf9];
- testvga2_tempbl = pSiS->BIOS[0xf8];
- testsvhs_tempbh = pSiS->BIOS[0xfb];
- testsvhs_tempbl = pSiS->BIOS[0xfa];
- testcvbs_tempbh = pSiS->BIOS[0xfd];
- testcvbs_tempbl = pSiS->BIOS[0xfc];
- biosflag = pSiS->BIOS[0xfe];
-#endif
- } else {
- testvga2_tempbh = 0x00;
- testvga2_tempbl = 0xd1;
- testsvhs_tempbh = 0x00;
- testsvhs_tempbl = 0xb9;
- testcvbs_tempbh = 0x00;
- testcvbs_tempbl = 0xb3;
- biosflag = 0;
- }
- if (sis_vbflags & (VB_301B | VB_302B | VB_301LV | VB_302LV)) {
- testvga2_tempbh = 0x01;
- testvga2_tempbl = 0x90;
- testsvhs_tempbh = 0x01;
- testsvhs_tempbl = 0x6b;
- testcvbs_tempbh = 0x01;
- testcvbs_tempbl = 0x74;
- }
- inSISIDXREG(SISPART4, 0x01, myflag);
- if (myflag & 0x04) {
- testvga2_tempbh = 0x00;
- testvga2_tempbl = 0xfd;
- testsvhs_tempbh = 0x00;
- testsvhs_tempbl = 0xdd;
- testcvbs_tempbh = 0x00;
- testcvbs_tempbl = 0xee;
- }
- testvga2_tempch = 0x0e;
- testvga2_tempcl = 0x08;
- testsvhs_tempch = 0x06;
- testsvhs_tempcl = 0x04;
- testcvbs_tempch = 0x08;
- testcvbs_tempcl = 0x04;
-
- if (sis_device_id == DEVICE_SIS_300) {
- inSISIDXREG(SISSR, 0x3b, myflag);
- if (!(myflag & 0x01)) {
- testvga2_tempbh = 0x00;
- testvga2_tempbl = 0x00;
- testvga2_tempch = 0x00;
- testvga2_tempcl = 0x00;
- }
- }
- } else {
- if (0 /*pSiS->sishw_ext.UseROM */ ) {
-#if 0
- if (sis_device_id == DEVICE_SIS_330) {
- testvga2_tempbh = pSiS->BIOS[0xe6];
- testvga2_tempbl = pSiS->BIOS[0xe5];
- testsvhs_tempbh = pSiS->BIOS[0xe8];
- testsvhs_tempbl = pSiS->BIOS[0xe7];
- testcvbs_tempbh = pSiS->BIOS[0xea];
- testcvbs_tempbl = pSiS->BIOS[0xe9];
- biosflag = pSiS->BIOS[0x11b];
- } else {
- testvga2_tempbh = pSiS->BIOS[0xbe];
- testvga2_tempbl = pSiS->BIOS[0xbd];
- testsvhs_tempbh = pSiS->BIOS[0xc0];
- testsvhs_tempbl = pSiS->BIOS[0xbf];
- testcvbs_tempbh = pSiS->BIOS[0xc2];
- testcvbs_tempbl = pSiS->BIOS[0xc1];
- biosflag = pSiS->BIOS[0xf3];
- }
-#endif
- } else {
- testvga2_tempbh = 0x00;
- testvga2_tempbl = 0xd1;
- testsvhs_tempbh = 0x00;
- testsvhs_tempbl = 0xb9;
- testcvbs_tempbh = 0x00;
- testcvbs_tempbl = 0xb3;
- biosflag = 0;
- }
-
- if (sis_vbflags & (VB_301B | VB_302B | VB_301LV | VB_302LV)) {
- if (0 /*pSiS->sishw_ext.UseROM */ ) {
-#if 0
- if (sis_device_id == DEVICE_SIS_330) {
- testvga2_tempbh = pSiS->BIOS[0xec];
- testvga2_tempbl = pSiS->BIOS[0xeb];
- testsvhs_tempbh = pSiS->BIOS[0xee];
- testsvhs_tempbl = pSiS->BIOS[0xed];
- testcvbs_tempbh = pSiS->BIOS[0xf0];
- testcvbs_tempbl = pSiS->BIOS[0xef];
- } else {
- testvga2_tempbh = pSiS->BIOS[0xc4];
- testvga2_tempbl = pSiS->BIOS[0xc3];
- testsvhs_tempbh = pSiS->BIOS[0xc6];
- testsvhs_tempbl = pSiS->BIOS[0xc5];
- testcvbs_tempbh = pSiS->BIOS[0xc8];
- testcvbs_tempbl = pSiS->BIOS[0xc7];
- }
-#endif
- } else {
- if (sis_vbflags & (VB_301B | VB_302B)) {
- testvga2_tempbh = 0x01;
- testvga2_tempbl = 0x90;
- testsvhs_tempbh = 0x01;
- testsvhs_tempbl = 0x6b;
- testcvbs_tempbh = 0x01;
- testcvbs_tempbl = 0x74;
- } else {
- testvga2_tempbh = 0x00;
- testvga2_tempbl = 0x00;
- testsvhs_tempbh = 0x02;
- testsvhs_tempbl = 0x00;
- testcvbs_tempbh = 0x01;
- testcvbs_tempbl = 0x00;
- }
- }
- }
- if (sis_vbflags & (VB_301 | VB_301B | VB_302B)) {
- inSISIDXREG(SISPART4, 0x01, myflag);
- if (myflag & 0x04) {
- testvga2_tempbh = 0x00;
- testvga2_tempbl = 0xfd;
- testsvhs_tempbh = 0x00;
- testsvhs_tempbl = 0xdd;
- testcvbs_tempbh = 0x00;
- testcvbs_tempbl = 0xee;
- }
- }
- if (sis_vbflags & (VB_301LV | VB_302LV)) {
- /* TW: No VGA2 or SCART on LV bridges */
- testvga2_tempbh = 0x00;
- testvga2_tempbl = 0x00;
- testvga2_tempch = 0x00;
- testvga2_tempcl = 0x00;
- testsvhs_tempch = 0x04;
- testsvhs_tempcl = 0x08;
- testcvbs_tempch = 0x08;
- testcvbs_tempcl = 0x08;
- } else {
- testvga2_tempch = 0x0e;
- testvga2_tempcl = 0x08;
- testsvhs_tempch = 0x06;
- testsvhs_tempcl = 0x04;
- testcvbs_tempch = 0x08;
- testcvbs_tempcl = 0x04;
- }
- }
-
- /* XXX: ?? andSISIDXREG(SISCR, 0x32, ~0x14); */
- /* pSiS->postVBCR32 &= ~0x14; */
-
- /* scan for VGA2/SCART */
- if (testvga2_tempch || testvga2_tempcl ||
- testvga2_tempbh || testvga2_tempbl) {
-
- haveresult = 0;
- for (j = 0; j < 10; j++) {
- result = 0;
- for (i = 0; i < 3; i++) {
- if (sis_do_sense(testvga2_tempbl, testvga2_tempbh,
- testvga2_tempcl, testvga2_tempch))
- result++;
- }
- if ((result == 0) || (result >= 2))
- break;
- }
- if (result) {
- if (biosflag & 0x01) {
- if (sis_verbose > 1) {
- printf
- ("[SiS] SiS30x: Detected TV connected to SCART output\n");
- }
- sis_vbflags |= TV_SCART;
- orSISIDXREG(SISCR, 0x32, 0x04);
- /*pSiS->postVBCR32 |= 0x04; */
- } else {
- if (sis_verbose > 1) {
- printf
- ("[SiS] SiS30x: Detected secondary VGA connection\n");
- }
- sis_vbflags |= VGA2_CONNECTED;
- orSISIDXREG(SISCR, 0x32, 0x10);
- /*pSiS->postVBCR32 |= 0x10; */
- }
- }
- }
-
- /* scanning for TV */
-
- /* XXX: ?? andSISIDXREG(SISCR, 0x32, ~0x03); */
- /* pSiS->postVBCR32 &= ~0x03; */
-
- result = sis_do_sense(testsvhs_tempbl, testsvhs_tempbh,
- testsvhs_tempcl, testsvhs_tempch);
-
-
- haveresult = 0;
- for (j = 0; j < 10; j++) {
- result = 0;
- for (i = 0; i < 3; i++) {
- if (sis_do_sense(testsvhs_tempbl, testsvhs_tempbh,
- testsvhs_tempcl, testsvhs_tempch))
- result++;
- }
- if ((result == 0) || (result >= 2))
- break;
- }
- if (result) {
- if (sis_verbose > 1) {
- printf
- ("[SiS] SiS30x: Detected TV connected to SVIDEO output\n");
- }
- /* TW: So we can be sure that there IS a SVIDEO output */
- sis_vbflags |= TV_SVIDEO;
- orSISIDXREG(SISCR, 0x32, 0x02);
- //pSiS->postVBCR32 |= 0x02;
- }
-
- if ((biosflag & 0x02) || (!(result))) {
- haveresult = 0;
- for (j = 0; j < 10; j++) {
- result = 0;
- for (i = 0; i < 3; i++) {
- if (sis_do_sense(testcvbs_tempbl, testcvbs_tempbh,
- testcvbs_tempcl, testcvbs_tempch))
- result++;
- }
- if ((result == 0) || (result >= 2))
- break;
- }
- if (result) {
- if (sis_verbose > 1) {
- printf
- ("[SiS] SiS30x: Detected TV connected to COMPOSITE output\n");
- }
- sis_vbflags |= TV_AVIDEO;
- orSISIDXREG(SISCR, 0x32, 0x01);
- //pSiS->postVBCR32 |= 0x01;
- }
- }
-
- sis_do_sense(0, 0, 0, 0);
-
- outSISIDXREG(SISPART2, 0x00, backupP2_00);
- outSISIDXREG(SISPART4, 0x0d, backupP4_0d);
-}
-
-
-static void sis_detect_crt1()
-{
- unsigned char CR32;
- unsigned char CRT1Detected = 0;
- unsigned char OtherDevices = 0;
-
- if (!(sis_vbflags & VB_VIDEOBRIDGE)) {
- sis_crt1_off = 0;
- return;
- }
-
- inSISIDXREG(SISCR, 0x32, CR32);
-
- if (CR32 & 0x20)
- CRT1Detected = 1;
- if (CR32 & 0x5F)
- OtherDevices = 1;
-
- if (sis_crt1_off == -1) {
- if (!CRT1Detected) {
- /* BIOS detected no CRT1. */
- /* If other devices exist, switch it off */
- if (OtherDevices)
- sis_crt1_off = 1;
- else
- sis_crt1_off = 0;
- } else {
- /* BIOS detected CRT1, leave/switch it on */
- sis_crt1_off = 0;
- }
- }
- if (sis_verbose > 0) {
- printf("[SiS] %sCRT1 connection detected\n",
- sis_crt1_off ? "No " : "");
- }
-}
-
-#if 0 /* not used yet */
-static void sis_detect_lcd()
-{
- unsigned char CR32;
-#if 0
- /* not supported yet? */
- unsigned char CR36, CR37;
-#endif
-
- if (!(sis_vbflags & VB_VIDEOBRIDGE)) {
- return;
- }
-
- inSISIDXREG(SISCR, 0x32, CR32);
-
- if (CR32 & 0x08)
- sis_vbflags |= CRT2_LCD;
-
- /* DDC detection of LCD - not supported yet */
-
- /* Get other misc info about LCD - not supported */
-}
-#endif
-
-static void sis_detect_tv()
-{
- unsigned char SR16, SR38, CR32, CR38 = 0, CR79;
- int temp = 0;
-
- if (!(sis_vbflags & VB_VIDEOBRIDGE))
- return;
-
- inSISIDXREG(SISCR, 0x32, CR32);
- inSISIDXREG(SISSR, 0x16, SR16);
- inSISIDXREG(SISSR, 0x38, SR38);
- switch (sis_vga_engine) {
- case SIS_300_VGA:
- if (sis_device_id == DEVICE_SIS_630_VGA)
- temp = 0x35;
- break;
- case SIS_315_VGA:
- temp = 0x38;
- break;
- }
- if (temp) {
- inSISIDXREG(SISCR, temp, CR38);
- }
-
- if (CR32 & 0x47)
- sis_vbflags |= CRT2_TV;
-
- if (CR32 & 0x04)
- sis_vbflags |= TV_SCART;
- else if (CR32 & 0x02)
- sis_vbflags |= TV_SVIDEO;
- else if (CR32 & 0x01)
- sis_vbflags |= TV_AVIDEO;
- else if (CR32 & 0x40)
- sis_vbflags |= (TV_SVIDEO | TV_HIVISION);
- else if ((CR38 & 0x04) && (sis_vbflags & (VB_301LV | VB_302LV)))
- sis_vbflags |= TV_HIVISION_LV;
- else if ((CR38 & 0x04) && (sis_vbflags & VB_CHRONTEL))
- sis_vbflags |= (TV_CHSCART | TV_PAL);
- else if ((CR38 & 0x08) && (sis_vbflags & VB_CHRONTEL))
- sis_vbflags |= (TV_CHHDTV | TV_NTSC);
-
- if (sis_vbflags & (TV_SCART | TV_SVIDEO | TV_AVIDEO | TV_HIVISION)) {
- if (sis_vga_engine == SIS_300_VGA) {
- /* TW: Should be SR38 here as well, but this
- * does not work. Looks like a BIOS bug (2.04.5c).
- */
- if (SR16 & 0x20)
- sis_vbflags |= TV_PAL;
- else
- sis_vbflags |= TV_NTSC;
- } else if ((sis_device_id == DEVICE_SIS_550_VGA)) {
- inSISIDXREG(SISCR, 0x79, CR79);
- if (CR79 & 0x08) {
- inSISIDXREG(SISCR, 0x79, CR79);
- CR79 >>= 5;
- }
- if (CR79 & 0x01) {
- sis_vbflags |= TV_PAL;
- if (CR38 & 0x40)
- sis_vbflags |= TV_PALM;
- else if (CR38 & 0x80)
- sis_vbflags |= TV_PALN;
- } else
- sis_vbflags |= TV_NTSC;
- } else if ((sis_device_id == DEVICE_SIS_650_VGA)) {
- inSISIDXREG(SISCR, 0x79, CR79);
- if (CR79 & 0x20) {
- sis_vbflags |= TV_PAL;
- if (CR38 & 0x40)
- sis_vbflags |= TV_PALM;
- else if (CR38 & 0x80)
- sis_vbflags |= TV_PALN;
- } else
- sis_vbflags |= TV_NTSC;
- } else { /* 315, 330 */
- if (SR38 & 0x01) {
- sis_vbflags |= TV_PAL;
- if (CR38 & 0x40)
- sis_vbflags |= TV_PALM;
- else if (CR38 & 0x80)
- sis_vbflags |= TV_PALN;
- } else
- sis_vbflags |= TV_NTSC;
- }
- }
-
- if (sis_vbflags &
- (TV_SCART | TV_SVIDEO | TV_AVIDEO | TV_HIVISION | TV_CHSCART |
- TV_CHHDTV)) {
- if (sis_verbose > 0) {
- printf("[SiS] %sTV standard %s\n",
- (sis_vbflags & (TV_CHSCART | TV_CHHDTV)) ? "Using " :
- "Detected default ",
- (sis_vbflags & TV_NTSC) ? ((sis_vbflags & TV_CHHDTV) ?
- "480i HDTV" : "NTSC")
- : ((sis_vbflags & TV_PALM) ? "PALM"
- : ((sis_vbflags & TV_PALN) ? "PALN" : "PAL")));
- }
- }
-
-}
-
-
-static void sis_detect_crt2()
-{
- unsigned char CR32;
-
- if (!(sis_vbflags & VB_VIDEOBRIDGE))
- return;
-
- /* CRT2-VGA not supported on LVDS and 30xLV */
- if (sis_vbflags & (VB_LVDS | VB_301LV | VB_302LV))
- return;
-
- inSISIDXREG(SISCR, 0x32, CR32);
-
- if (CR32 & 0x10)
- sis_vbflags |= CRT2_VGA;
-
-#if 0
- if (!(pSiS->nocrt2ddcdetection)) {
- if (sis_vbflags & (VB_301B | VB_302B)) {
- if (!(sis_vbflags & (CRT2_VGA | CRT2_LCD))) {
- printf
- ("[SiS] BIOS detected no secondary VGA, sensing via DDC\n");
- if (SiS_SenseVGA2DDC(pSiS->SiS_Pr, pSiS)) {
- printf
- ("[SiS] DDC error during secondary VGA detection\n");
- } else {
- inSISIDXREG(SISCR, 0x32, CR32);
- if (CR32 & 0x10) {
- sis_vbflags |= CRT2_VGA;
- /*pSiS->postVBCR32 |= 0x10; */
- printf
- ("[SiS] Detected secondary VGA connection\n");
- } else {
- printf
- ("[SiS] No secondary VGA connection detected\n");
- }
- }
- }
- }
- }
-#endif
-
-}
-
-
-/* Preinit: detect video bridge and sense connected devs */
-static void sis_detect_video_bridge()
-{
- int temp, temp1, temp2;
-
-
- sis_vbflags = 0;
-
- if (sis_vga_engine != SIS_300_VGA && sis_vga_engine != SIS_315_VGA)
- return;
-
- inSISIDXREG(SISPART4, 0x00, temp);
- temp &= 0x0F;
- if (temp == 1) {
- inSISIDXREG(SISPART4, 0x01, temp1);
- temp1 &= 0xff;
- if (temp1 >= 0xE0) {
- sis_vbflags |= VB_302LV;
- //pSiS->sishw_ext.ujVBChipID = VB_CHIP_302LV;
- if (sis_verbose > 1) {
- printf
- ("[SiS] Detected SiS302LV video bridge (ID 1; Revision 0x%x)\n",
- temp1);
- }
-
- } else if (temp1 >= 0xD0) {
- sis_vbflags |= VB_301LV;
- //pSiS->sishw_ext.ujVBChipID = VB_CHIP_301LV;
- if (sis_verbose > 1) {
- printf
- ("[SiS] Detected SiS301LV video bridge (ID 1; Revision 0x%x)\n",
- temp1);
- }
- } else if (temp1 >= 0xB0) {
- sis_vbflags |= VB_301B;
- //pSiS->sishw_ext.ujVBChipID = VB_CHIP_301B;
- inSISIDXREG(SISPART4, 0x23, temp2);
- if (!(temp2 & 0x02))
- sis_vbflags |= VB_30xBDH;
- if (sis_verbose > 1) {
- printf
- ("[SiS] Detected SiS301B%s video bridge (Revision 0x%x)\n",
- (temp2 & 0x02) ? "" : " (DH)", temp1);
- }
- } else {
- sis_vbflags |= VB_301;
- //pSiS->sishw_ext.ujVBChipID = VB_CHIP_301;
- if (sis_verbose > 1) {
- printf
- ("[SiS] Detected SiS301 video bridge (Revision 0x%x)\n",
- temp1);
- }
- }
-
- sis_sense_30x();
-
- } else if (temp == 2) {
-
- inSISIDXREG(SISPART4, 0x01, temp1);
- temp1 &= 0xff;
- if (temp1 >= 0xE0) {
- sis_vbflags |= VB_302LV;
- //pSiS->sishw_ext.ujVBChipID = VB_CHIP_302LV;
- if (sis_verbose > 1) {
- printf
- ("[SiS] Detected SiS302LV video bridge (ID 2; Revision 0x%x)\n",
- temp1);
- }
- } else if (temp1 >= 0xD0) {
- sis_vbflags |= VB_301LV;
- //pSiS->sishw_ext.ujVBChipID = VB_CHIP_301LV;
- if (sis_verbose > 1) {
- printf
- ("[SiS] Detected SiS301LV video bridge (ID 2; Revision 0x%x)\n",
- temp1);
- }
- } else {
- sis_vbflags |= VB_302B;
- //pSiS->sishw_ext.ujVBChipID = VB_CHIP_302B;
- inSISIDXREG(SISPART4, 0x23, temp2);
- if (!(temp & 0x02))
- sis_vbflags |= VB_30xBDH;
- if (sis_verbose > 1) {
- printf
- ("[SiS] Detected SiS302B%s video bridge (Revision 0x%x)\n",
- (temp2 & 0x02) ? "" : " (DH)", temp1);
- }
- }
-
- sis_sense_30x();
-
- } else if (temp == 3) {
- if (sis_verbose > 1) {
- printf("[SiS] Detected SiS303 video bridge - not supported\n");
- }
- } else {
- /* big scary mess of code to handle unknown or Chrontel LVDS */
- /* skipping it for now */
- if (sis_verbose > 1) {
- printf
- ("[SiS] Detected Chrontel video bridge - not supported\n");
- }
- }
-
- /* this is probably not relevant to video overlay driver... */
- /* detects if brdige uses LCDA for low res text modes */
- if (sis_vga_engine == SIS_315_VGA) {
- if (sis_vbflags & (VB_302B | VB_301LV | VB_302LV)) {
-#if 0
- if (pSiS->sisfblcda != 0xff) {
- if ((pSiS->sisfblcda & 0x03) == 0x03) {
- //pSiS->SiS_Pr->SiS_UseLCDA = TRUE;
- sis_vbflags |= VB_USELCDA;
- }
- } else
-#endif
- {
- inSISIDXREG(SISCR, 0x34, temp);
- if (temp <= 0x13) {
- inSISIDXREG(SISCR, 0x38, temp);
- if ((temp & 0x03) == 0x03) {
- //pSiS->SiS_Pr->SiS_UseLCDA = TRUE;
- sis_vbflags |= VB_USELCDA;
- } else {
- inSISIDXREG(SISCR, 0x30, temp);
- if (temp & 0x20) {
- inSISIDXREG(SISPART1, 0x13, temp);
- if (temp & 0x40) {
- //pSiS->SiS_Pr->SiS_UseLCDA = TRUE;
- sis_vbflags |= VB_USELCDA;
- }
- }
- }
- }
- }
- if (sis_vbflags & VB_USELCDA) {
- /* printf("Bridge uses LCDA for low resolution and text modes\n"); */
- }
- }
- }
-
-
-}
-
-
-/* detect video bridge type and sense connected devices */
-void sis_init_video_bridge()
-{
-
- sis_detect_video_bridge();
-
- sis_detect_crt1();
- //sis_detect_lcd(); /* not fully ready probably */
- sis_detect_tv();
- sis_detect_crt2();
-
- sis_detected_crt2_devices =
- sis_vbflags & (CRT2_LCD | CRT2_TV | CRT2_VGA);
-
- // force crt2 type
- if (sis_force_crt2_type == CRT2_DEFAULT) {
- if (sis_vbflags & CRT2_VGA)
- sis_force_crt2_type = CRT2_VGA;
- else if (sis_vbflags & CRT2_LCD)
- sis_force_crt2_type = CRT2_LCD;
- else if (sis_vbflags & CRT2_TV)
- sis_force_crt2_type = CRT2_TV;
- }
-
- switch (sis_force_crt2_type) {
- case CRT2_TV:
- sis_vbflags = sis_vbflags & ~(CRT2_LCD | CRT2_VGA);
- if (sis_vbflags & VB_VIDEOBRIDGE)
- sis_vbflags = sis_vbflags | CRT2_TV;
- else
- sis_vbflags = sis_vbflags & ~(CRT2_TV);
- break;
- case CRT2_LCD:
- sis_vbflags = sis_vbflags & ~(CRT2_TV | CRT2_VGA);
- if ((sis_vbflags & VB_VIDEOBRIDGE) /* XXX: && (pSiS->VBLCDFlags) */
- )
- sis_vbflags = sis_vbflags | CRT2_LCD;
- else {
- sis_vbflags = sis_vbflags & ~(CRT2_LCD);
- if (sis_verbose > 0) {
- printf
- ("[SiS] Can't force CRT2 to LCD, no panel detected\n");
- }
- }
- break;
- case CRT2_VGA:
- if (sis_vbflags & VB_LVDS) {
- if (sis_verbose > 0) {
- printf("[SiS] LVDS does not support secondary VGA\n");
- }
- break;
- }
- if (sis_vbflags & (VB_301LV | VB_302LV)) {
- if (sis_verbose > 0) {
- printf
- ("[SiS] SiS30xLV bridge does not support secondary VGA\n");
- }
- break;
- }
- sis_vbflags = sis_vbflags & ~(CRT2_TV | CRT2_LCD);
- if (sis_vbflags & VB_VIDEOBRIDGE)
- sis_vbflags = sis_vbflags | CRT2_VGA;
- else
- sis_vbflags = sis_vbflags & ~(CRT2_VGA);
- break;
- default:
- sis_vbflags &= ~(CRT2_TV | CRT2_LCD | CRT2_VGA);
- }
-
- /* CRT2 gamma correction?? */
-
- /* other force modes: */
- /* have a 'force tv type' (svideo, composite, scart) option? */
- /* have a 'force crt1 type' (to turn it off, etc??) */
-
- /* TW: Check if CRT1 used (or needed; this eg. if no CRT2 detected) */
- if (sis_vbflags & VB_VIDEOBRIDGE) {
-
- /* TW: No CRT2 output? Then we NEED CRT1!
- * We also need CRT1 if depth = 8 and bridge=LVDS|630+301B
- */
- if ((!(sis_vbflags & (CRT2_VGA | CRT2_LCD | CRT2_TV))) || ( /*(pScrn->bitsPerPixel == 8) && */
- ((sis_vbflags & (VB_LVDS | VB_CHRONTEL)) || ((sis_vga_engine == SIS_300_VGA) && (sis_vbflags & VB_301B))))) {
- sis_crt1_off = 0;
- }
- /* TW: No CRT2 output? Then we can't use hw overlay on CRT2 */
- if (!(sis_vbflags & (CRT2_VGA | CRT2_LCD | CRT2_TV)))
- sis_overlay_on_crt1 = 1;
-
- } else { /* TW: no video bridge? */
-
- /* Then we NEED CRT1... */
- sis_crt1_off = 0;
- /* ... and can't use CRT2 for overlay output */
- sis_overlay_on_crt1 = 1;
- }
-
- /* tvstandard options ? */
-
- // determine using CRT1 or CRT2?
- /* -> NO dualhead right now... */
- if (sis_vbflags & DISPTYPE_DISP2) {
- if (sis_crt1_off) {
- sis_vbflags |= VB_DISPMODE_SINGLE;
- /* TW: No CRT1? Then we use the video overlay on CRT2 */
- sis_overlay_on_crt1 = 0;
- } else /* TW: CRT1 and CRT2 - mirror or dual head ----- */
- sis_vbflags |= (VB_DISPMODE_MIRROR | DISPTYPE_CRT1);
- } else { /* TW: CRT1 only ------------------------------- */
- sis_vbflags |= (VB_DISPMODE_SINGLE | DISPTYPE_CRT1);
- }
-
- if (sis_verbose > 0) {
- printf("[SiS] Using hardware overlay on CRT%d\n",
- sis_overlay_on_crt1 ? 1 : 2);
- }
-
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-26 16:00:49 +0000