www.pudn.com > H265+_C64X_2008.8.rar > saa7115.c
/* * Copyright 2003 by Texas Instruments Incorporated. * All rights reserved. Property of Texas Instruments Incorporated. * Restricted rights to use, duplicate or disclose this code are * granted through contract. * */ /* "@(#) DDK 1.10.00.23 07-02-03 (ddk-b12)" */ /**************************************************************************/ /* saa7115.c file */ /**************************************************************************/ #include#include #include #include #include #include "_iic.h" #include "_saa7115.h" typedef enum {INTERLACED = TRUE, PROGRESSIVE = FALSE} FrameType ; static void configSAA7115(Int decNum, SAA7115_Mode inMode, SAA7115_Mode outMode, SAA7115_AnalogFormat inFormat); static void enableIPortOutput(Int channel, Bool iPortOutputEnable); static void enableTask(Uns channel, Uns task, Uns enableFlag); static void initSAA7115Def(Uns channel); static void powerdownSAA7115(Int channel, Bool powerDownEnable); static void resetSAA7115(Int channel); static void scalerReset(Uns channel); static void setInOutImageSize(Uns channel, Uns inType, Uns outType); static void setNTSCScalerParameters(Uns channel,Uns task, Uns frameType); static void setScalerGlobals(Uns channel); static void setSAA7115InputFormat(Int channel, SAA7115_AnalogFormat inFormat); static void setSAA7115SyncMode(Int channel, Bool enableBT656Sync); static void setupUserDefResolution(Arg arg); static Int SAA7115_ctrl(EDC_Handle handle, SAA7115_Cmd cmd, Arg arg); static Int SAA7115_close(EDC_Handle handle); static EDC_Handle SAA7115_open(String devName, Arg optArg); EDC_Fxns SAA7115_Fxns = { SAA7115_open, SAA7115_close, SAA7115_ctrl }; static I2C_Handle hI2C[2] = {INV, INV}; static const Int inModeTbl[2][5] = { {240, 0x11, 0x01, 0, 1},/* NTSC */ {288, 0x15, 0x35, 0, 1} /* PAL */ }; static Int outModeTbl[9][3] = { {640, 480, INTERLACED},/* NTSC640 */ {720, 480, INTERLACED},/* NTSC720 */ {720, 576, INTERLACED},/* PAL720 */ {768, 576, INTERLACED},/* PAL768 */ {352, 288, INTERLACED},/* CIF */ {176, 144, INTERLACED},/* QCIF */ {128, 96, INTERLACED},/* SQCIF */ {320, 240, INTERLACED},/* SIF */ {480, 480, INTERLACED} /* USER DEFINED */ }; /* * ======== configSAA7115 ======== */ static void configSAA7115(Int decNum, SAA7115_Mode inMode, SAA7115_Mode outMode, SAA7115_AnalogFormat inFormat) { initSAA7115Def(decNum); setInOutImageSize(decNum,inMode,outMode); setSAA7115InputFormat(decNum, inFormat); } /* * ======== enableIPortOutput ======== */ static void enableIPortOutput(Int channel, Bool iPortOutputEnable) { _SAA7115_settingsDef[channel].globals.iPortEnable = iPortOutputEnable; _SAA7115_settingsDef[channel].globals.xPortEnable = !iPortOutputEnable; } /* * ======== enableTask ======== */ static void enableTask(Uns channel, Uns task, Uns enableFlag) { _SAA7115_Globals *globalPtr; Uint8 addrI2C; addrI2C = (channel == 0) ? _SAA7115_IIC_ADDR0 : _SAA7115_IIC_ADDR1; globalPtr = &_SAA7115_settingsDef[channel].globals; if(task == _SAA7115_TASKA) { globalPtr->taskAEnable = enableFlag; }else { globalPtr->taskBEnable = enableFlag; } _IIC_write(hI2C[channel], addrI2C,0x80,(Uint8 *)globalPtr,1); } /* * ======== initSAA7115Def ======== */ static void initSAA7115Def(Uns channel) { _SAA7115_Generics *genericPtr; Uint8 addrI2C; addrI2C = (channel == 0) ? _SAA7115_IIC_ADDR0 : _SAA7115_IIC_ADDR1; genericPtr = &_SAA7115_settingsDef[channel].generics; _IIC_write(hI2C[channel], addrI2C,1,(Uint8 *)genericPtr + 1,29); _IIC_write(hI2C[channel], addrI2C,0x30,(Uint8 *)genericPtr + 0x30,0x30); _IIC_write(hI2C[channel], addrI2C,0xF0,(Uint8 *)genericPtr + 0xF0,0x10); setScalerGlobals(channel); } /* * ======== powerdownSAA7115 ======== */ static void powerdownSAA7115(Int channel, Bool powerDownEnable) { Uint8 addrI2C; Uint8 powerdownSettings = 0x0d; /*Put _SAA7115 in power down mode */ if(!powerDownEnable) { powerdownSettings = 0xf0; } addrI2C = (channel == 0) ? _SAA7115_IIC_ADDR0 : _SAA7115_IIC_ADDR1; _IIC_write(hI2C[channel], addrI2C,0x88,&powerdownSettings,1); } /* * ======== resetSAA7115 ======== */ static void resetSAA7115(Int channel) { /***************************************************************/ /* Reset 7115 */ /***************************************************************/ scalerReset(channel); powerdownSAA7115(channel, FALSE); } /* * ======== scalerReset ======== */ static void scalerReset(Uns channel) { _SAA7115_Globals *globalPtr; Uint8 addrI2C; addrI2C = (channel == 0) ? _SAA7115_IIC_ADDR0 : _SAA7115_IIC_ADDR1; globalPtr = &_SAA7115_settingsDef[channel].globals; /* reset */ globalPtr->resetScaler = 0; _IIC_write( hI2C[channel], addrI2C, 0x88, (Uint8 *)globalPtr + 8, 1 ); /* unreset */ globalPtr->resetScaler = 1; _IIC_write( hI2C[channel], addrI2C, 0x88, (Uint8 *)globalPtr + 8, 1 ); } /* * ======== setInOutImageSize ======== */ static void setInOutImageSize(Uns channel, Uns inType, Uns outType) { _SAA7115_Task *taskPtr; _SAA7115_Generics *genericPtr; Uns pixelsInput,linesInput,pixelsOutput,linesOutput; Int frameType; Uns scalerFlag; Uns xOffset = 8; Uns yOffset = 15; Uint8 addrI2C; Int index; pixelsInput = 720; addrI2C = (channel == 0) ? _SAA7115_IIC_ADDR0 : _SAA7115_IIC_ADDR1; index = (inType == SAA7115_MODE_NTSC720) ? 0 : 1; linesInput = inModeTbl[index][0]; _SAA7115_settingsDef[channel].generics.vGateStart = inModeTbl[index][1]; _SAA7115_settingsDef[channel].generics.vGateStop = inModeTbl[index][2]; _SAA7115_settingsDef[channel].generics.vGateStartMsb = inModeTbl[index][3]; _SAA7115_settingsDef[channel].generics.vGateStopMsb = inModeTbl[index][4]; genericPtr = &_SAA7115_settingsDef[channel].generics; _IIC_write(hI2C[channel], addrI2C,0x15,(Uint8 *)genericPtr + 0X15, 3); index = outType; pixelsOutput = outModeTbl[index][0]; linesOutput = outModeTbl[index][1]; frameType = outModeTbl[index][2]; scalerFlag = TRUE; if(pixelsInput == pixelsOutput) { if (frameType == INTERLACED){ if (linesInput == linesOutput / 2){ scalerFlag = FALSE; } } else if (linesInput == linesOutput){ scalerFlag = FALSE; } } if(scalerFlag == TRUE) { /* enable I-port output but disable X-port output */ _SAA7115_settingsDef[channel].globals.iPortEnable = 1; _SAA7115_settingsDef[channel].globals.xPortEnable = 0; } taskPtr = &_SAA7115_settingsDef[channel].taskA; taskPtr->xInputOffset = xOffset; taskPtr->yInputOffset = yOffset; taskPtr->xInputLength = pixelsInput; taskPtr->yInputLength = linesInput; taskPtr->xOutputLength = pixelsOutput; if(frameType == INTERLACED){ taskPtr->yOutputLength = linesOutput / 2; }else{ taskPtr->yOutputLength = linesOutput; } setNTSCScalerParameters(channel,_SAA7115_TASKA, frameType); enableTask(channel,_SAA7115_TASKA, TRUE); taskPtr = &_SAA7115_settingsDef[channel].taskB; taskPtr->xInputOffset = xOffset; taskPtr->yInputOffset = yOffset; taskPtr->xInputLength = pixelsInput; taskPtr->yInputLength = linesInput; taskPtr->xOutputLength = pixelsOutput; if(frameType == INTERLACED){ taskPtr->yOutputLength = linesOutput / 2; }else{ taskPtr->yOutputLength = linesOutput; } setNTSCScalerParameters(channel,_SAA7115_TASKB, frameType); enableTask(channel,_SAA7115_TASKB, TRUE); } /* * ======== setNTSCScalerParameters ======== */ static void setNTSCScalerParameters(Uns channel,Uns task, Uns frameType) { Uns i,xRatio,firLuma,firChroma,xLumaInc; Uns saturation,yRatio,lpiMode,yLumaInc; _SAA7115_Regs *regPtr; _SAA7115_Task *taskPtr; Uint8 addrI2C; addrI2C = (channel == 0) ? _SAA7115_IIC_ADDR0 : _SAA7115_IIC_ADDR1; regPtr = (_SAA7115_Regs *)&_SAA7115_settingsDef[channel]; if(task == _SAA7115_TASKA){ taskPtr = &_SAA7115_settingsDef[channel].taskA; } else{ taskPtr = &_SAA7115_settingsDef[channel].taskB; } taskPtr->xPreScale = taskPtr->xInputLength / taskPtr->xOutputLength; if(taskPtr->xPreScale == 0){ taskPtr->xPreScale = 1; } else if(taskPtr->xPreScale > 63){ taskPtr->xPreScale = 63; } taskPtr->xAccLength = _SAA7115_xScale.xValues[taskPtr->xPreScale].acl; xRatio = 100 * taskPtr->xInputLength; xRatio /= taskPtr->xOutputLength; if(xRatio > 275){ firLuma = 3; }else if(xRatio > 200){ firLuma = 2; }else if(xRatio >= 170){ firLuma = 1; }else{ firLuma = 0; } firChroma = firLuma; taskPtr->xACLWeighting = _SAA7115_xScale.xValues[taskPtr->xPreScale].c21; taskPtr->scalerDCGain = _SAA7115_xScale.xValues[taskPtr->xPreScale].dcGain; taskPtr->yPreFilterType = firLuma; taskPtr->cxPreFilterType = firChroma; xLumaInc = 1024 * taskPtr->xInputLength; xLumaInc /= taskPtr->xOutputLength; xLumaInc /= taskPtr->xPreScale; if(xLumaInc > 0x1FFF){ xLumaInc = 0x1FFF; } yRatio = 100 * taskPtr->yInputLength; yRatio /= taskPtr->yOutputLength; taskPtr->brightness = 0x80; if(yRatio < 125){ lpiMode = 0; taskPtr->contrast = 64; taskPtr->saturation = 64; }else{ lpiMode = 1; saturation = 64 * taskPtr->yOutputLength; saturation /= taskPtr->yInputLength; taskPtr->contrast = (Uint8)saturation; taskPtr->saturation = (Uint8)saturation; } taskPtr->xLumaIncrement = xLumaInc; taskPtr->xChromaIncrement = xLumaInc / 2; taskPtr->xLumaPhaseOffset = 0; taskPtr->xChromaPhaseOffset = 0; yLumaInc = 1024 * taskPtr->yInputLength; yLumaInc /= taskPtr->yOutputLength; if(yLumaInc > 0xFFFF){ yLumaInc = 0xFFFF; } taskPtr->yLumaIncrement = yLumaInc; taskPtr->yChromaIncrement = yLumaInc; taskPtr->verticalScalingType = lpiMode; for(i = 0; i < 4; i ++){ taskPtr->yLumaPhaseOffset[i] = 0; taskPtr->yChromaPhaseOffset[i] = 0; } if(frameType == INTERLACED){ taskPtr->eventTrigger = 1; } else { if(taskPtr == ®Ptr->taskA){ taskPtr->eventTrigger = 2; }else{ taskPtr->eventTrigger = 3; } } if(task == _SAA7115_TASKA){ _IIC_write(hI2C[channel], addrI2C,0x90,(Uint8 *)taskPtr,0x30); } else { _IIC_write(hI2C[channel], addrI2C,0xC0,(Uint8 *)taskPtr,0x30); } } /* * ======== setScalerGlobals ======== */ static void setScalerGlobals(Uns channel) { _SAA7115_Globals *globalPtr; Uint8 addrI2C; addrI2C = (channel == 0) ? _SAA7115_IIC_ADDR0 : _SAA7115_IIC_ADDR1; globalPtr = &_SAA7115_settingsDef[channel].globals; _IIC_write(hI2C[channel], addrI2C,0x80,(Uint8 *)globalPtr,9); } /* * ======== setSAA7115InputFormat ======== */ static void setSAA7115InputFormat(Int channel, SAA7115_AnalogFormat inFormat) { _SAA7115_Generics *genericPtr; Uint8 addrI2C; addrI2C = (channel == 0) ? _SAA7115_IIC_ADDR0 : _SAA7115_IIC_ADDR1; genericPtr = &_SAA7115_settingsDef[channel].generics; if(inFormat == SAA7115_AFMT_SVIDEO) { _SAA7115_settingsDef[channel].generics.analogMuxMode = 7; _SAA7115_settingsDef[channel].generics.bypassYCombFilter = 1; _SAA7115_settingsDef[channel].generics.yCombFilter = 0; } else { _SAA7115_settingsDef[channel].generics.analogMuxMode = channel; _SAA7115_settingsDef[channel].generics.bypassYCombFilter = 0; _SAA7115_settingsDef[channel].generics.yCombFilter = 1; } _IIC_write(hI2C[channel], addrI2C, 0x2,(Uint8 *)genericPtr + 2,1); _IIC_write(hI2C[channel], addrI2C, 0x9,(Uint8 *)genericPtr + 9,1); } /* * ======== setSAA7115SyncMode ======== */ static void setSAA7115SyncMode(Int channel, Bool enableBT656Sync) { _SAA7115_Task *taskPtrA, *taskPtrB; _SAA7115_Generics *genericPtr; Uint8 addrI2C; addrI2C = (channel == 0) ? _SAA7115_IIC_ADDR0 : _SAA7115_IIC_ADDR1; genericPtr = &_SAA7115_settingsDef[channel].generics; taskPtrA = &_SAA7115_settingsDef[channel].taskA; taskPtrB = &_SAA7115_settingsDef[channel].taskB; if(enableBT656Sync) { _SAA7115_settingsDef[channel].taskA.ccir656Enable = 1; _SAA7115_settingsDef[channel].taskB.ccir656Enable = 1; _SAA7115_settingsDef[channel].generics.ofts = 0; _SAA7115_settingsDef[channel].generics.ofts3 = 0; } else { _SAA7115_settingsDef[channel].taskA.ccir656Enable = 0; _SAA7115_settingsDef[channel].taskB.ccir656Enable = 0; _SAA7115_settingsDef[channel].generics.ofts = 2; _SAA7115_settingsDef[channel].generics.ofts3 = 0; } _IIC_write(hI2C[channel], addrI2C,0x93,(Uint8 *)taskPtrA + 3,1); _IIC_write(hI2C[channel], addrI2C,0xc3,(Uint8 *)taskPtrB + 3,1); _IIC_write(hI2C[channel], addrI2C,0x13,(Uint8 *)genericPtr + 0x13, 1); _IIC_write(hI2C[channel], addrI2C,0x1b,(Uint8 *)genericPtr + 0x1b, 1); } /* * ======== setupUserDefResolution ======== */ static void setupUserDefResolution(Arg arg) { SAA7115_ConfParams *saa7115Params = (SAA7115_ConfParams *)arg; if(saa7115Params->outMode == SAA7115_MODE_USER) { outModeTbl[SAA7115_MODE_USER][0] = saa7115Params->hSize; outModeTbl[SAA7115_MODE_USER][1] = saa7115Params->vSize; outModeTbl[SAA7115_MODE_USER][2] = saa7115Params->interlaced; } } /* * ======== SAA7115_close ======== */ static Int SAA7115_close(EDC_Handle handle) { Int devId = (int)handle; /*First Check if the Handle is correct */ if(devId == 0 || devId == 1) { /*Put _SAA7115 in power down mode */ powerdownSAA7115(devId, TRUE); return EDC_SUCCESS; } else { return EDC_FAILED; } } /* * ======== SAA7115_ctrl ======== */ static Int SAA7115_ctrl(EDC_Handle handle, SAA7115_Cmd cmd, Arg arg) { Int devId = (int)handle; _SAA7115_Generics *genericPtr; Uint8 addrI2C; addrI2C = (devId == 0) ? _SAA7115_IIC_ADDR0 : _SAA7115_IIC_ADDR1; genericPtr = &_SAA7115_settingsDef[devId].generics; /*First Check if the Handle is correct */ if(devId != 0 && devId != 1) { return EDC_FAILED; } switch(cmd) { case EDC_CONFIG: { SAA7115_ConfParams *saa7115Params = (SAA7115_ConfParams *)arg; hI2C[devId] = saa7115Params->hI2C; enableIPortOutput(devId, saa7115Params->enableIPortOutput); setupUserDefResolution(arg); configSAA7115(devId, saa7115Params->inMode, saa7115Params->outMode, saa7115Params->aFmt); setSAA7115SyncMode(devId, saa7115Params->enableBT656Sync); } break; case EDC_RESET: resetSAA7115(devId); break; case SAA7115_POWERDOWN: powerdownSAA7115(devId, TRUE); break; case SAA7115_POWERUP: powerdownSAA7115(devId, FALSE); break; case SAA7115_SET_AMUXMODE: _SAA7115_settingsDef[devId].generics.analogMuxMode = (int)arg; if((int)arg >= 6) {/* svideo input */ _SAA7115_settingsDef[devId].generics.bypassYCombFilter = 1; _SAA7115_settingsDef[devId].generics.yCombFilter = 0; }else { _SAA7115_settingsDef[devId].generics.bypassYCombFilter = 0; _SAA7115_settingsDef[devId].generics.yCombFilter = 1; } _IIC_write(hI2C[0], addrI2C,0x2,(Uint8 *)genericPtr + 2,1); _IIC_write(hI2C[0], addrI2C,0x9,(Uint8 *)genericPtr + 9,1); break; } return EDC_SUCCESS; } /* * ======== SAA7115_open ======== */ static EDC_Handle SAA7115_open(String devName, Arg optArg) { Int devId; /* Check if the addresse is correct */ if(devName[0] != '/') { devId = -1; } else if(devName[1] == '0') { devId = 0; } else if(devName[1] == '1'){ devId = 1; } else { devId = -1; } return (EDC_Handle)devId; } /**************************************************************************/ /* End of file */ /**************************************************************************/