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Subject[PATCH 13/19] Staging: xgifb: Rework conditions in XGI_GetVBInfo().
Date
Rework some conditions to reduce indentation and fix style warnings.

Signed-off-by: Miguel Gómez <magomez@igalia.com>
---
drivers/staging/xgifb/vb_setmode.c | 287 ++++++++++++++++++------------------
1 file changed, 142 insertions(+), 145 deletions(-)

diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c
index 251145e..9dfc2de 100644
--- a/drivers/staging/xgifb/vb_setmode.c
+++ b/drivers/staging/xgifb/vb_setmode.c
@@ -2611,186 +2611,183 @@ static void XGI_GetVBInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
pVBInfo->ModeType = modeflag & ModeTypeMask;
tempbx = 0;

- if (pVBInfo->VBType & 0xFFFF) {
- /* Check Display Device */
- temp = xgifb_reg_get(pVBInfo->P3d4, 0x30);
- tempbx = tempbx | temp;
- temp = xgifb_reg_get(pVBInfo->P3d4, 0x31);
- push = temp;
- push = push << 8;
- tempax = temp << 8;
- tempbx = tempbx | tempax;
- temp = (SetCRT2ToDualEdge | SetCRT2ToYPbPr525750 | XGI_SetCRT2ToLCDA
- | SetInSlaveMode | DisableCRT2Display);
- temp = 0xFFFF ^ temp;
- tempbx &= temp;
-
- temp = xgifb_reg_get(pVBInfo->P3d4, 0x38);
+ if (!(pVBInfo->VBType & 0xFFFF))
+ return;

- if (pVBInfo->IF_DEF_LCDA == 1) {
-
- if ((HwDeviceExtension->jChipType >= XG20) ||
- (HwDeviceExtension->jChipType >= XG40)) {
- if (pVBInfo->IF_DEF_LVDS == 0) {
- if (pVBInfo->VBType &
- (VB_SIS302B |
- VB_SIS301LV |
- VB_SIS302LV |
- VB_XGI301C)) {
- if (temp & EnableDualEdge) {
- tempbx |=
- SetCRT2ToDualEdge;
-
- if (temp & SetToLCDA)
- tempbx |=
- XGI_SetCRT2ToLCDA;
- }
- }
+ /* Check Display Device */
+ temp = xgifb_reg_get(pVBInfo->P3d4, 0x30);
+ tempbx = tempbx | temp;
+ temp = xgifb_reg_get(pVBInfo->P3d4, 0x31);
+ push = temp;
+ push = push << 8;
+ tempax = temp << 8;
+ tempbx = tempbx | tempax;
+ temp = (SetCRT2ToDualEdge | SetCRT2ToYPbPr525750 | XGI_SetCRT2ToLCDA
+ | SetInSlaveMode | DisableCRT2Display);
+ temp = 0xFFFF ^ temp;
+ tempbx &= temp;
+
+ temp = xgifb_reg_get(pVBInfo->P3d4, 0x38);
+
+ if (pVBInfo->IF_DEF_LCDA == 1) {
+
+ if (((HwDeviceExtension->jChipType >= XG20) ||
+ (HwDeviceExtension->jChipType >= XG40)) &&
+ (pVBInfo->IF_DEF_LVDS == 0)) {
+ if (pVBInfo->VBType &
+ (VB_SIS302B |
+ VB_SIS301LV |
+ VB_SIS302LV |
+ VB_XGI301C)) {
+ if (temp & EnableDualEdge) {
+ tempbx |= SetCRT2ToDualEdge;
+ if (temp & SetToLCDA)
+ tempbx |= XGI_SetCRT2ToLCDA;
}
}
}
+ }

- if (pVBInfo->IF_DEF_YPbPr == 1) {
- if (((pVBInfo->IF_DEF_LVDS == 0) &&
- ((pVBInfo->VBType & VB_SIS301LV) ||
- (pVBInfo->VBType & VB_SIS302LV) ||
- (pVBInfo->VBType & VB_XGI301C)))) {
- if (temp & SetYPbPr) {
- if (pVBInfo->IF_DEF_HiVision == 1) {
- /* shampoo add for new
- * scratch */
- temp = xgifb_reg_get(
- pVBInfo->P3d4,
- 0x35);
- temp &= YPbPrMode;
- tempbx |= SetCRT2ToHiVision;
-
- if (temp != YPbPrMode1080i) {
- tempbx &=
- (~SetCRT2ToHiVision);
- tempbx |=
- SetCRT2ToYPbPr525750;
- }
+ if (pVBInfo->IF_DEF_YPbPr == 1) {
+ if (((pVBInfo->IF_DEF_LVDS == 0) &&
+ ((pVBInfo->VBType & VB_SIS301LV) ||
+ (pVBInfo->VBType & VB_SIS302LV) ||
+ (pVBInfo->VBType & VB_XGI301C)))) {
+ if (temp & SetYPbPr) {
+ if (pVBInfo->IF_DEF_HiVision == 1) {
+ /* shampoo add for new
+ * scratch */
+ temp = xgifb_reg_get(
+ pVBInfo->P3d4,
+ 0x35);
+ temp &= YPbPrMode;
+ tempbx |= SetCRT2ToHiVision;
+
+ if (temp != YPbPrMode1080i) {
+ tempbx &=
+ (~SetCRT2ToHiVision);
+ tempbx |=
+ SetCRT2ToYPbPr525750;
}
}
}
}
+ }

- tempax = push; /* restore CR31 */
+ tempax = push; /* restore CR31 */

- if (pVBInfo->IF_DEF_LVDS == 0) {
- if (pVBInfo->IF_DEF_YPbPr == 1) {
- if (pVBInfo->IF_DEF_HiVision == 1)
- temp = 0x09FC;
- else
- temp = 0x097C;
- } else {
- if (pVBInfo->IF_DEF_HiVision == 1)
- temp = 0x01FC;
- else
- temp = 0x017C;
- }
- } else { /* 3nd party chip */
- temp = SetCRT2ToLCD;
- }
-
- if (!(tempbx & temp)) {
- tempax |= DisableCRT2Display;
- tempbx = 0;
- }
-
- if (pVBInfo->IF_DEF_LCDA == 1) { /* Select Display Device */
- if (!(pVBInfo->VBType & VB_NoLCD)) {
- if (tempbx & XGI_SetCRT2ToLCDA) {
- if (tempbx & SetSimuScanMode)
- tempbx &= (~(SetCRT2ToLCD |
- SetCRT2ToRAMDAC |
- SwitchCRT2));
- else
- tempbx &= (~(SetCRT2ToLCD |
- SetCRT2ToRAMDAC |
- SetCRT2ToTV |
- SwitchCRT2));
- }
- }
+ if (pVBInfo->IF_DEF_LVDS == 0) {
+ if (pVBInfo->IF_DEF_YPbPr == 1) {
+ if (pVBInfo->IF_DEF_HiVision == 1)
+ temp = 0x09FC;
+ else
+ temp = 0x097C;
+ } else {
+ if (pVBInfo->IF_DEF_HiVision == 1)
+ temp = 0x01FC;
+ else
+ temp = 0x017C;
}
+ } else { /* 3nd party chip */
+ temp = SetCRT2ToLCD;
+ }

- /* shampoo add */
- /* for driver abnormal */
- if (!(tempbx & (SwitchCRT2 | SetSimuScanMode))) {
- if (pVBInfo->IF_DEF_CRT2Monitor == 1) {
- if (tempbx & SetCRT2ToRAMDAC) {
- tempbx &= (0xFF00 |
- SetCRT2ToRAMDAC |
- SwitchCRT2 |
- SetSimuScanMode);
- tempbx &= (0x00FF | (~SetCRT2ToYPbPr525750));
- }
- } else {
- tempbx &= (~(SetCRT2ToRAMDAC |
- SetCRT2ToLCD |
- SetCRT2ToTV));
+ if (!(tempbx & temp)) {
+ tempax |= DisableCRT2Display;
+ tempbx = 0;
+ }
+
+ if (pVBInfo->IF_DEF_LCDA == 1) { /* Select Display Device */
+ if (!(pVBInfo->VBType & VB_NoLCD)) {
+ if (tempbx & XGI_SetCRT2ToLCDA) {
+ if (tempbx & SetSimuScanMode)
+ tempbx &= (~(SetCRT2ToLCD |
+ SetCRT2ToRAMDAC |
+ SwitchCRT2));
+ else
+ tempbx &= (~(SetCRT2ToLCD |
+ SetCRT2ToRAMDAC |
+ SetCRT2ToTV |
+ SwitchCRT2));
}
}
+ }

- if (!(pVBInfo->VBType & VB_NoLCD)) {
- if (tempbx & SetCRT2ToLCD) {
+ /* shampoo add */
+ /* for driver abnormal */
+ if (!(tempbx & (SwitchCRT2 | SetSimuScanMode))) {
+ if (pVBInfo->IF_DEF_CRT2Monitor == 1) {
+ if (tempbx & SetCRT2ToRAMDAC) {
tempbx &= (0xFF00 |
- SetCRT2ToLCD |
+ SetCRT2ToRAMDAC |
SwitchCRT2 |
SetSimuScanMode);
tempbx &= (0x00FF | (~SetCRT2ToYPbPr525750));
}
+ } else {
+ tempbx &= (~(SetCRT2ToRAMDAC |
+ SetCRT2ToLCD |
+ SetCRT2ToTV));
}
+ }

- if (tempbx & SetCRT2ToSCART) {
+ if (!(pVBInfo->VBType & VB_NoLCD)) {
+ if (tempbx & SetCRT2ToLCD) {
tempbx &= (0xFF00 |
- SetCRT2ToSCART |
+ SetCRT2ToLCD |
SwitchCRT2 |
SetSimuScanMode);
tempbx &= (0x00FF | (~SetCRT2ToYPbPr525750));
}
+ }

- if (pVBInfo->IF_DEF_YPbPr == 1) {
- if (tempbx & SetCRT2ToYPbPr525750)
- tempbx &= (0xFF00 |
- SwitchCRT2 |
- SetSimuScanMode);
- }
+ if (tempbx & SetCRT2ToSCART) {
+ tempbx &= (0xFF00 |
+ SetCRT2ToSCART |
+ SwitchCRT2 |
+ SetSimuScanMode);
+ tempbx &= (0x00FF | (~SetCRT2ToYPbPr525750));
+ }

- if (pVBInfo->IF_DEF_HiVision == 1) {
- if (tempbx & SetCRT2ToHiVision)
- tempbx &= (0xFF00 |
- SetCRT2ToHiVision |
- SwitchCRT2 |
- SetSimuScanMode);
- }
+ if (pVBInfo->IF_DEF_YPbPr == 1) {
+ if (tempbx & SetCRT2ToYPbPr525750)
+ tempbx &= (0xFF00 |
+ SwitchCRT2 |
+ SetSimuScanMode);
+ }

- if (tempax & DisableCRT2Display) { /* Set Display Device Info */
- if (!(tempbx & (SwitchCRT2 | SetSimuScanMode)))
- tempbx = DisableCRT2Display;
- }
+ if (pVBInfo->IF_DEF_HiVision == 1) {
+ if (tempbx & SetCRT2ToHiVision)
+ tempbx &= (0xFF00 |
+ SetCRT2ToHiVision |
+ SwitchCRT2 |
+ SetSimuScanMode);
+ }

- if (!(tempbx & DisableCRT2Display)) {
- if ((!(tempbx & DriverMode)) ||
- (!(modeflag & CRT2Mode))) {
- if (pVBInfo->IF_DEF_LCDA == 1) {
- if (!(tempbx & XGI_SetCRT2ToLCDA))
- tempbx |= (SetInSlaveMode |
- SetSimuScanMode);
- }
- }
+ if (tempax & DisableCRT2Display) { /* Set Display Device Info */
+ if (!(tempbx & (SwitchCRT2 | SetSimuScanMode)))
+ tempbx = DisableCRT2Display;
+ }

- /* LCD+TV can't support in slave mode
- * (Force LCDA+TV->LCDB) */
- if ((tempbx & SetInSlaveMode) &&
- (tempbx & XGI_SetCRT2ToLCDA)) {
- tempbx ^= (SetCRT2ToLCD |
- XGI_SetCRT2ToLCDA |
- SetCRT2ToDualEdge);
- pVBInfo->SetFlag |= ReserveTVOption;
+ if (!(tempbx & DisableCRT2Display)) {
+ if ((!(tempbx & DriverMode)) ||
+ (!(modeflag & CRT2Mode))) {
+ if (pVBInfo->IF_DEF_LCDA == 1) {
+ if (!(tempbx & XGI_SetCRT2ToLCDA))
+ tempbx |= (SetInSlaveMode |
+ SetSimuScanMode);
}
}
+
+ /* LCD+TV can't support in slave mode
+ * (Force LCDA+TV->LCDB) */
+ if ((tempbx & SetInSlaveMode) &&
+ (tempbx & XGI_SetCRT2ToLCDA)) {
+ tempbx ^= (SetCRT2ToLCD |
+ XGI_SetCRT2ToLCDA |
+ SetCRT2ToDualEdge);
+ pVBInfo->SetFlag |= ReserveTVOption;
+ }
}

pVBInfo->VBInfo = tempbx;
--
1.7.9.5
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