mtk_cam.rar_3G-modem-EM560_camera MTK_mtk_mtk 3g_mtk CAMERA

#include "gpp.h" #include "gpt.h" #include "dma.h" #include "ppi.h" #include "cam.h" #include "lcd.h" #include "sic.h" #include "kbd.h" #include "campreview.h" #include "stdio.h" #include "tws.h" #define MAX_DMA_BLOCK 24 * 1280 //30k #define MAX_DMA_BLOCK_240_320 23232 /*25*1024*/ /*30720*/ //siol.yu add to test 240*320 preview 8/30/2005 17:59 ,change to 30K to verify the DMA destination address //===================================================== //function declare //===================================================== static void DMA_Initialise( unsigned long startAddr, unsigned long block_size ); void PPI_DMARxHandler(void); void DMA_Initalise_QVGA( unsigned long startAddr, unsigned long block_size ); void PPI_DMARxHandler_240_320(void); static void CamInitialization(void); void PPI_Configure( void ); void PPISEOF_InterruptHandler(); void CamPreview(void); UINT16 CamCheckStatus(); UINT16 CamCheckRead(); UINT32 GetCapFrameLength(); void JpegEOFAdd(UINT8* JPEGRawStart, UINT32 rawDataLen); void CamTestStatus(); void CamDelFocus(); UINT16 SensorWorkState; /* Buffer Initialisation */ //two buffers in System SRAM UINT8 * rxData1 = (UINT8 * ) 0x40060000;//64k UINT8 * rxData2 = (UINT8 * ) 0x40070000; //one buffer in External SRAM //UINT8 * rxData3 = (UINT8 * ) 0x08004000; UINT8 * rxData3 = (UINT8 * ) 0x40060000; UINT8 * rxJpegData = (UINT8*)0x40060000/*0x08003000*/; UINT8 * pJPEGCompleteFile=(UINT8*)0x08007000;//this buffer is used to store the complete JPEG file temporarily /* Flag indicating DMA transfer finish, and this flag indicate that one preview frame finishes */ UINT16 rxDMAComplete = 0; UINT32 g_j; UINT32 displayPtr,displayPtr1; UINT32 MAX_WORDS;//flag indicating how many data will be transderred PPI_CONFIGURATION ppiConfig; CAM_INFO cameraInfo; CAM_FRAMERATE QCIF_FPS = FPS30; #if ( defined (LIBERATOR_BYPASS) || defined (LIBERATOR_ISP) ) CAM_FRAMERATE SXGA_FPS = FPS8; #else CAM_FRAMERATE SXGA_FPS = FPS2; #endif //===================================================== //function define //===================================================== void TsDelay(UINT8 delayms) { UINT16 i,j; for(j=0;j<delayms;j++) { for(i=0;i<9000;i++) i++; } } /***************************************************************************** Function: CamPreCfg Description: pre configure the DMA channel and PPI relevant to preview *****************************************************************************/ void micronSensor_Mono(); static void Blackfin_DMA_PPI_Configure (void) { GPP_PIN_INSTANCE pin; PPI_INTERRUPT_STATUS status; /*set the DMA channel's parameters, such as start address, */ DMA_Initialise( (unsigned long) & rxData3[0], MAX_WORDS * 2); /* Enable DMA */ DMA_WriteChannelSetup(1, DMA_CHANNEL_ENABLE); TsDelay(100); CamInitialization(); TsDelay(300); CamCheckStatus(); /* Configure PPI, PPI configuration register */ PPI_Configure(); PPI_SetupInterface(PPI_DISABLE); /*Check the SEOF*/ PPI_WriteInterruptSetup ( PPI_INT_SEOF, PPI_INT_ENABLE ); } static void DMA_Initialise( unsigned long startAddr, unsigned long block_size ) { DMA_CHANNEL_CONFIG rxDMA; DMA_CHANNEL_CONFIG chainRxDMA; SIC_INTERRUPT_INSTANCE inst; inst.group=1; inst.priority=7; inst.handler = PPI_DMARxHandler; inst.setup= SIC_INT_ENABLE; //diDISble DMA channel1, write 0 to address ChanEnable+0x40 to clear bit1(0x80000784+0x40) DMA_WriteChannelSetup( 1, DMA_CHANNEL_DISABLE );//0x800007C4=0x02 if ((MAX_WORDS * 2) <= MAX_DMA_BLOCK) { /* Fill up the Rx DMA channel configuration parameters. */ rxDMA.id = 1; rxDMA.sourceAddr = (unsigned long)( (PPI_RegisterList[PPI_PPIFIFOREG].addr)); rxDMA.destAddr = (unsigned long) rxData1; rxDMA.notifyAddr = (unsigned long)(rxData1 + (block_size - 4)); rxDMA.transferMode = DMA_TM_LINEAR_FIX_INCR_STOP;//linear, Fix-to-Increment stop mode rxDMA.transferSize = DMA_TS_32BIT;//transfer uint: Byte,HalfWord,Word,Unefined rxDMA.transferOnestop = DMA_TO_NO_ONESTOP;// DMA_ConfigureChannel( &rxDMA ); /* Map DMA Channel 1 interrupt source to DMA_INT_SPIRXI. */ DMA_MapInterruptSource( 1, DMA_INT_PPI ); /* Setup the DMA channel 1 interrupt. */ DMA_WriteInterruptSetup( DMA_INT_PPI, DMA_INT_ENABLE );//this sentence is to configure the DMAHWMask register DMA_InstallChannelInterruptHandler(1,PPI_DMARxHandler); } else if ((MAX_WORDS*2 > MAX_DMA_BLOCK) && (MAX_WORDS < MAX_DMA_BLOCK)) { /* Fill up the Rx DMA channel configuration parameters. */ rxDMA.id = 1; rxDMA.sourceAddr = (unsigned long)( (PPI_RegisterList[PPI_PPIFIFOREG].addr)); rxDMA.destAddr = (unsigned long) rxData1; //buffer exist in sysrem SRAM rxDMA.notifyAddr = (unsigned long)rxData1 + (MAX_DMA_BLOCK - 4);//maximum 32K bytes ,but we used 30k bytes as threshold rxDMA.transferMode = DMA_TM_LINEAR_FIX_INCR_STOP; // rxDMA.transferSize = DMA_TS_32BIT; rxDMA.transferOnestop = DMA_TO_NO_ONESTOP; DMA_ConfigureChannel( &rxDMA ); /* Fill up Chaining DMA Channel Configuration Parameters */ chainRxDMA.id = 17; chainRxDMA.sourceAddr = (unsigned long)((PPI_RegisterList[PPI_PPIFIFOREG].addr));//FIFO read register chainRxDMA.destAddr = (unsigned long)rxData1 + MAX_DMA_BLOCK; chainRxDMA.notifyAddr = (unsigned long)rxData1 + block_size - 4; chainRxDMA.transferMode = DMA_TM_LINEAR_FIX_INCR_STOP; chainRxDMA.transferSize = DMA_TS_32BIT; chainRxDMA.transferOnestop = DMA_TO_NO_ONESTOP; DMA_ConfigureChannel( & chainRxDMA ); /* Map DMA Channel 1 interrupt source to DMA_INT_SPIRXI. */ DMA_MapInterruptSource( 1, DMA_INT_PPI );//IRQChan1Config[4:0](0x80000702)=0x1F.configure the DMA section of interrupt controller to be PPI /* Setup the DMA channel 1 interrupt. */ DMA_WriteInterruptSetup( DMA_INT_PPI, DMA_INT_ENABLE ); //unmask the PPI interrupt--(0x80000780+0x20)=0x8000 /* Enable Chaing channel 1. */ DMA_WriteChainingSetup( 1, DMA_CM_ENABLE ); /* Install Channel Interrupt handler. */ DMA_InstallChannelInterruptHandler(1,PPI_DMARxHandler); } else { /* Fill up the Rx DMA channel configuration parameters. */ rxDMA.id = 1; rxDMA.sourceAddr = (unsigned long)( (PPI_RegisterList[PPI_PPIFIFOREG].addr)); rxDMA.destAddr = (unsigned long) startAddr; rxDMA.notifyAddr = (unsigned long) startAddr + (MAX_DMA_BLOCK - 2); rxDMA.transferMode = DMA_TM_LINEAR_FIX_INCR_STOP; rxDMA.transferSize = DMA_TS_32BIT; rxDMA. transferOnestop = DMA_TO_NO_ONESTOP; DMA_ConfigureChannel( &rxDMA ); /* Fill up Chaining DMA Channel Configuration Parameters */ chainRxDMA.id = 17; chainRxDMA.sourceAddr = (unsigned long)((PPI_RegisterList[PPI_PPIFIFOREG].addr)); chainRxDMA.destAddr = (unsigned long) startAddr + MAX_DMA_BLOCK; chainRxDMA.notifyAddr = (unsigned long) startAddr + (2 * (MAX_DMA_BLOCK - 1)); chainRxDMA.transferMode = DMA_TM_LINEAR_FIX_INCR_STOP; chainRxDMA.transferSize = DMA_TS_32BIT; chainRxDMA.transferOnestop = DMA_TO_NO_ONESTOP; DMA_ConfigureChannel( & chainRxDMA ); /* Map DMA Channel 1 interrupt