void sysPciConfig (void) { /* Initialize the basic PCI access routines. */ pciConfigLibInit (PCI_MECHANISM_0, (ULONG) pciRead, (ULONG) pciWrite, (ULONG) NULL); /* mySpecialRtn (not used) */ }
/*************************************************************************** * * sysPciCfgInit - pci configuration and initialization * * Modify this routine as needed for special host bridge initialization if * needed. This is the first access to PCI in a normal system. * * RETURNS: N/A */ VOID sysPciCfgInit ( int mechanism, /* mechanism 1 or 2 */ UINT32 addr1, /* address 1 */ UINT32 addr2, /* address 2 */ UINT32 addr3 /* address 3 */ ) { /* * TODO: Any special host bridge initialization should be done here. Or * it can be in a separate component, if it is done before * INCLUDE_PCI_CFG_LIB */ /* Initialize PCI driver library. */ if (pciConfigLibInit (mechanism, addr1, addr2, addr3) != OK) { sprintf (sysExcMsg, "pciCfgStub.c: PCI configuration failure\n"); sysToMonitor (BOOT_NO_AUTOBOOT); } }
int probe1() { unsigned int pciBusNo, pciDevNo, pciFuncNo; unsigned char byte; /* int i,j;*/ UINT32 s_pBA0, s_pBA1; /* To ensure that taskDelay(1) is 1ms delay */ sysClkRateSet(1000); if (pciConfigLibInit (PCI_MECHANISM_1, 0xCF8, 0xCFC, 0) != OK) { printf("PCI lib config error\n"); return 1; } /**************************** * Find SoundCard * Set BaseAddr0, BaseAddr1 ****************************/ if(!(pciFindDevice(PCI_VENDOR_ID_CIRRUS,PCI_DEVICE_ID_CRYSTAL_CS4281, 0, &pciBusNo, &pciDevNo, &pciFuncNo)==OK)) { printf("\n CS4281 sound card NOT FOUND!!! \n"); return 1; } printf("\n FOUND CS4281 sound card, configuring BA0,BA1... \n"); pciConfigOutLong( pciBusNo, pciDevNo, pciFuncNo, PCI_CFG_BASE_ADDRESS_0, CS4281_pBA0); /* pciConfigOutLong( pciBusNo, pciDevNo, pciFuncNo, PCI_CFG_BASE_ADDRESS_1, CS4281_pBA1); */ pciConfigInLong( pciBusNo, pciDevNo, pciFuncNo, PCI_CFG_BASE_ADDRESS_0, &s_pBA0); pciConfigInLong( pciBusNo, pciDevNo, pciFuncNo, PCI_CFG_BASE_ADDRESS_1, &s_pBA1 ); printf ("\npBusNo pDeviceNo pFuncNo pBA0 pBA1\n\n"); printf ("%.8x %.8x %.8x %.8x %.8x \n", pciBusNo, pciDevNo, pciFuncNo, s_pBA0,s_pBA1); /******************************** * Config PCI Device Capability * DMA Master * MEM mapped ********************************/ /* Set the INTA vector */ pciConfigInByte(pciBusNo, pciDevNo, pciFuncNo, PCI_CFG_DEV_INT_LINE, &cs4281_irq); printf("\nFound CS4281 configured for IRQ %d\n", cs4281_irq); pciConfigInByte(pciBusNo, pciDevNo, pciFuncNo, PCI_CFG_DEV_INT_PIN, &byte); printf("\tINT_PIN=%.8x\n", byte); /* Enable the device's capabilities as specified * Bus Master Enable/ Mem Space Enable */ pciConfigOutWord(pciBusNo, pciDevNo, pciFuncNo, PCI_CFG_COMMAND, (unsigned short)0x0006); /*************************** * BringUp Hardware ***************************/ /*Include Init Function Here*/ cs4281_hw_init(); /**************************** * Allocate ADC_BUFFER * Allocate DAC_BUFFER * * Hook cs4281_interrupt * * Program CoDec ****************************/ if((DAC_BUFFER=valloc(DAC_BUFFER_SIZE))==NULL) { printf("\n DAC_BUFFER valloc failed!\n"); return 1; } memset( DAC_BUFFER, 0, DAC_BUFFER_SIZE ); printf("\ndac=%x",DAC_BUFFER); /*for( i=0 ; i < DAC_BUFFER_SIZE ; i++ ) ((char *)DAC_BUFFER)[i]=0x7f;*/ writel((UINT32)DAC_BUFFER+8,CS4281_pBA0 + BA0_DBA0); writel(DAC_BUFFER_SIZE-16, CS4281_pBA0 + BA0_DBC0); printf("\nbao=%x",readl(CS4281_pBA0 + BA0_DBA0)); printf("\nbco=%x",readl(CS4281_pBA0 + BA0_DBC0)); printf("\ncco=%x",readl(CS4281_pBA0 + BA0_DCC0)); if((ADC_BUFFER=valloc(ADC_BUFFER_SIZE))==NULL) { printf("\n ADC_BUFFER valloc failed!\n"); return 1; } printf("\nadc=%x",ADC_BUFFER); /*for( i=0 ; i < ADC_BUFFER_SIZE ; i++ ) ((char *)ADC_BUFFER)[i]=0x7f;*/ writel((UINT32)ADC_BUFFER+8,CS4281_pBA0 + BA0_DBA1); writel(ADC_BUFFER_SIZE-16, CS4281_pBA0 + BA0_DBC1); /* connect interrupt */ printf("\n Hook cs4281_interrupt to vector %d\n", (INUM_TO_IVEC (cs4281_irq+INT_NUM_IRQ0))); pciIntConnect((INUM_TO_IVEC (cs4281_irq+INT_NUM_IRQ0)), (VOIDFUNCPTR)cs4281_interrupt, 0); sysIntEnablePIC(cs4281_irq); SEM_DMA_Playback = semBCreate(SEM_Q_FIFO,SEM_EMPTY); SEM_MY_Playback = semBCreate(SEM_Q_FIFO,SEM_EMPTY); SEM_DMA_Record = semBCreate(SEM_Q_FIFO,SEM_EMPTY); SEM_Sample = semBCreate(SEM_Q_FIFO,SEM_EMPTY); CNT_DMA_Playback = CNT_DMA_Record = 0; /* program coDec */ printf("\n Program CoDec (sample rate, DMA...)\n"); prog_codec(); /********************************************* * start dac/adc, interrupt is comming... *********************************************/ start_dac(); return 0; }