/* User Interface SWI */
void UserInterfaceSwi(void)
{
Bool sarDataReady;
Int16 status;
Uint16 sarReadData;
UI_PBNState pbnState;
Int16 pbnStateAllowed;
pUsbContext pContext;
pContext = &gUsbContext;
/* Check SAR status */
sarDataReady = SAR_getStatus(gsSarHandle, &status); /* SAR data should always be ready since Timer frequency is very slow compared with SAR sampling frequency */
if ((sarDataReady != CSL_SAR_DATA_AVAILABLE) || (status != CSL_SOK))
{
LOG_printf(&trace, "ERROR: SAR_getStatus()");
}
/* Read SAR data */
status = SAR_readData(gsSarHandle, &sarReadData);
if (status != CSL_SOK)
{
LOG_printf(&trace, "ERROR: SAR_readData()");
}
/* Start next conversion */
status = SAR_startConversion(gsSarHandle);
if (status != CSL_SOK)
{
LOG_printf(&trace, "ERROR: SAR_startConversion()");
}
/* Get current push-button network state */
status = getCurrentPBNState(sarReadData, &pbnState);
if (status != UI_SOK)
{
LOG_printf(&trace, "ERROR: getCurrentPBNState()");
}
//if (pbnState == UI_PUSH_BUTTON_UNKNOWN) LOG_printf(&trace, "pbnState = 0x%04X", pbnState);
/* Check push-button network state is allowed state */
status = chkAllowedPBNState(pbnState, gAllowedPbnStates, NUM_ALLOWED_PBN_STATES, &pbnStateAllowed);
if (status != UI_SOK)
{
LOG_printf(&trace, "ERROR: chkAllowedPBNState()");
}
/* Filter disallowed push-button network states, */
/* Check change in push-button network state */
if ((pbnStateAllowed) && (pbnState != gPrevPbnState))
{
/* Generate HID report */
genHidReport(pbnState, gHidReport);
gPrevPbnState = pbnState;
gHidReportReady = TRUE;
if (hidIntInEpReady == TRUE)
{
DeviceNotification(pContext, CSL_USB_EVENT_HID_REPORT_TX);
gHidReportReady = FALSE;
hidIntInEpReady = FALSE;
}
}
}
/**
* \brief Audio Class intialization function
*
* \param None
*
* \return None
*/
void CSL_acTest(void)
{
I2sInitPrms i2sInitPrms;
CSL_UsbConfig usbConfig;
PSP_Result result;
Int16 status;
HWI_Attrs attrs;
LOG_printf(&trace, "USB ISO FULL SPEED MODE\n");
/* Initialize audio module */
result = AIC3254_init();
if(result != 0)
{
LOG_printf(&trace, "ERROR: Unable to configure audio codec");
}
else
{
#if !defined(SAMPLE_BY_SAMPLE_PB) || !defined(SAMPLE_BY_SAMPLE_REC)
DMA_HwInit();
DMA_DrvInit();
#endif
/* Initialize I2S and associated DMA channels for Playback and Record */
i2sInitPrms.enablePlayback = TRUE;
i2sInitPrms.enableStereoPb = TRUE;
#ifdef SAMPLE_BY_SAMPLE_PB
i2sInitPrms.sampleBySamplePb = TRUE;
#else /* Configuration untested since ASRC only works with I2S in sample-by-sample mode */
i2sInitPrms.sampleBySamplePb = FALSE;
i2sInitPrms.enableDmaPingPongPb = FALSE;
i2sInitPrms.pingI2sTxLeftBuf = ping_i2sTxLeftBuf;
i2sInitPrms.pongI2sTxLeftBuf = pong_i2sTxLeftBuf;
i2sInitPrms.pingI2sTxRightBuf = ping_i2sTxRightBuf;
i2sInitPrms.pongI2sTxRightBuf = pong_i2sTxRightBuf;
i2sInitPrms.zeroBuf = ZeroBuf;
#endif
i2sInitPrms.i2sPb = PSP_I2S_TX_INST_ID;
i2sInitPrms.enableRecord = TRUE;
i2sInitPrms.enableStereoRec = FALSE;
#ifdef SAMPLE_BY_SAMPLE_REC
i2sInitPrms.sampleBySampleRec = TRUE;
#else
i2sInitPrms.sampleBySampleRec = FALSE;
i2sInitPrms.enableDmaPingPongRec = TRUE;
i2sInitPrms.pingI2sRxLeftBuf = (Int16 *)ping_pong_i2sRxLeftBuf;
i2sInitPrms.pongI2sRxLeftBuf = NULL;
i2sInitPrms.pingI2sRxRightBuf = (Int16 *)ping_pong_i2sRxRightBuf;
i2sInitPrms.pongI2sRxRightBuf = NULL;
#endif
i2sInitPrms.i2sRec = PSP_I2S_RX_INST_ID;
status = i2sInit(&i2sInitPrms);
if (status != I2SSAMPLE_SOK)
{
LOG_printf(&trace, "ERROR: Unable to initialize I2S");
}
#ifdef C5535_EZDSP_DEMO
// initialize the OLED display
oled_init();
#endif
/* Initialising the Pointer to the Audio Class Handle to the Buffer Allocated */
AC_AppHandle.pAcObj = &ACAppBuffer[0];
usbConfig.devNum = CSL_USB0;
usbConfig.opMode = CSL_USB_OPMODE_POLLED;
#ifdef APP_USB_SELF_POWERED
usbConfig.selfPowered = TRUE;
#else
usbConfig.selfPowered = FALSE;
#endif
usbConfig.maxCurrent = APP_USB_MAX_CURRENT;
usbConfig.appSuspendCallBack = (CSL_USB_APP_CALLBACK)CSL_suspendCallBack;
usbConfig.appWakeupCallBack = (CSL_USB_APP_CALLBACK)CSL_selfWakeupCallBack;
usbConfig.startTransferCallback = StartTransfer;
usbConfig.completeTransferCallback = CompleteTransfer;
USB_init(&usbConfig);
USB_setFullSpeedMode(0x40); /* parameter is EP0 data size in bytes */
USB_resetDev(CSL_USB0);
/* Calling init routine */
/* Giving all the table hanldes and the buffers to the Audio Class module */
AC_AppHandle.strDescrApp = (char **)&string_descriptor[0];
AC_AppHandle.lbaBufferPbApp = &lbaBufferPbApp[0];
AC_AppHandle.lbaBufferRecApp = &lbaBufferRecApp[0];
AC_AppHandle.lbaBufferHidReportApp = &lbaBufferHidReportApp[0];
AC_AppHandle.acReqTableApp = USB_ReqTable;
AC_AppHandle.pId = pId;
AC_AppHandle.vId = vId;
#ifndef ENABLE_PLAYBACK_TWO_SAMPLE_RATES
#ifdef SAMPLE_RATE_TX_48kHz
LOG_printf(&trace, "PLAYBACK: 48KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = EP_PB_MAXP; // max packet size for 48K stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = 0x60; // max packet size for 48K mono
#endif // ENABLE_STEREO_PLAYBACK
#endif // SAMPLE_RATE_TX_48kHz
#ifdef SAMPLE_RATE_TX_44_1kHz
LOG_printf(&trace, "PLAYBACK: 44.1KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = 0xB0; // max packet size for 44.1 stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = 0x58; // max packet size for 44.1 mono
#endif // ENABLE_STEREO_PLAYBACK
#endif // SAMPLE_RATE_TX_44_1kHz
#ifdef SAMPLE_RATE_TX_32kHz
LOG_printf(&trace, "PLAYBACK: 32KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = 0x80; // max packet size for 32K stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = 0x40; // max packet size for 32K mono
#endif // ENABLE_STEREO_PLAYBACK
#endif // SAMPLE_RATE_TX_32kHz
#ifdef SAMPLE_RATE_TX_16kHz
LOG_printf(&trace, "PLAYBACK: 16KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = RX_PKT_SIZE_16K_PLAYBACK_STEREO; // max packet size for 16K stereo
rx_pkt_size_16K_playback = RX_PKT_SIZE_16K_PLAYBACK_STEREO; // max packet size for 16K stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = RX_PKT_SIZE_16K_PLAYBACK_MONO; // max packet size for 16K mono
rx_pkt_size_16K_playback = RX_PKT_SIZE_16K_PLAYBACK_MONO; // max packet size for 16K mono
#endif // ENABLE_STEREO_PLAYBACK
#endif // SAMPLE_RATE_TX_16kHz
#else /* ENABLE_PLAYBACK_TWO_SAMPLE_RATES */
LOG_printf(&trace, "PLAYBACK: 48KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "STEREO\n");
AC_AppHandle.rxPktSize = EP_PB_MAXP; // max packet size for 48K stereo
#else // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "MONO\n");
AC_AppHandle.rxPktSize = 0x60; // max packet size for 48K mono
#endif // ENABLE_STEREO_PLAYBACK
LOG_printf(&trace, "PLAYBACK: 16KHZ ");
#ifdef ENABLE_STEREO_PLAYBACK
rx_pkt_size_16K_playback = RX_PKT_SIZE_16K_PLAYBACK_STEREO; // max packet size for 16K stereo
LOG_printf(&trace, "STEREO\n");
#else // ENABLE_STEREO_PLAYBACK
rx_pkt_size_16K_playback = RX_PKT_SIZE_16K_PLAYBACK_MONO; // max packet size for 16K mono
LOG_printf(&trace, "MONO\n");
#endif // ENABLE_STEREO_PLAYBACK
#endif /* ENABLE_PLAYBACK_TWO_SAMPLE_RATES */
AC_AppHandle.txPktSize = EP_REC_MAXP; // max packet size for 16K mono
AC_AppHandle.hidTxPktSize = EP_HID_MAXP; // max packet size for HID output report
/* All Function Handlers need to be Initialised */
AC_AppHandle.playAudioApp = appPlayAudio;
AC_AppHandle.recordAudioApp = appRecordAudio;
AC_AppHandle.initPlayAudioApp = appInitPlayAudio;
AC_AppHandle.initRecordAudioApp = appInitRecordAudio;
AC_AppHandle.stopPlayAudioApp = appStopPlayAudio;
AC_AppHandle.stopRecordAudioApp = appStopRecordAudio;
AC_AppHandle.mediaGetPresentStateApp = AppGetMediaStatus;
AC_AppHandle.mediaInitApp = AppMediaInit;
AC_AppHandle.mediaEjectApp = AppMediaEject;
AC_AppHandle.mediaLockUnitApp = AppLockMedia;
AC_AppHandle.getMediaSizeApp = AppGetMediaSize;
AC_AppHandle.getHidReportApp = appGetHidReport;
AC_AppHandle.ctrlHandler = appCtrlFxn;
AC_AppHandle.isoHandler = appIsoFxn;
AC_AppHandle.hidHandler = appHidFxn;
AC_AppHandle.numLun = 2;
/* Initialize End point descriptors */
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)deviceDescriptorB,
CSL_AC_DEVICE_DESCR, sizeof(deviceDescriptorB));
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)deviceQualifierDescr,
CSL_AC_DEVICE_QUAL_DESCR, 10);
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)configDescriptor,
CSL_AC_CONFIG_DESCR, sizeof(configDescriptor));
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)stringLanId,
CSL_AC_STRING_LANGID_DESC, 6);
AC_initDescriptors(AC_AppHandle.pAcObj, (Uint16 *)acHidReportDescriptor,
CSL_AC_HID_REPORT_DESC, sizeof(acHidReportDescriptor));
/* Initialize HID */
AC_AppHandle.acHidIfNum = IF_NUM_HID; // HID interface number
AC_AppHandle.acHidReportId = HID_REPORT_ID; // HID report ID
AC_AppHandle.acHidReportLen = HID_REPORT_SIZE_BYTES; // HID report length (bytes)
genHidReport(UI_PUSH_BUTTON_NONE, gHidReport); // init. HID report for Get Report
/* Call Init API */
AC_Open(&AC_AppHandle);
/* Enable CPU USB interrupts */
CSL_FINST(CSL_CPU_REGS->IER1, CPU_IER1_USB, ENABLE);
/* Initialize active sample rate */
initSampleRate(RATE_48_KHZ, &active_sample_rate,
&i2sTxBuffSz);
/* Initialize ASRC */
Init_Sample_Rate_Converter(active_sample_rate);
/* Reset codec output buffer */
reset_codec_output_buffer();
#ifdef ENABLE_RECORD
#ifdef SAMPLE_RATE_RX_48kHz
LOG_printf(&trace, "RECORD: 48KHZ ");
#else
LOG_printf(&trace, "RECORD: 16KHZ ");
#endif // SAMPLE_RATE_RX_48kHz
// start the rx DMAs
DMA_StartTransfer(hDmaRxLeft);
#ifdef ENABLE_STEREO_RECORD
LOG_printf(&trace, "STEREO NOT SUPPORTED - RECORD WILL BE MONO\n");
DMA_StartTransfer(hDmaRxRight);
#else
LOG_printf(&trace, "MONO\n");
#endif
#endif // ENABLE_RECORD
#ifdef STORE_PARAMETERS_TO_SDRAM
initSdram(FALSE, 0x0000);
#endif // STORE_PARAMETERS_TO_SDRAM
#ifdef SAMPLE_BY_SAMPLE_PB
/* SampleBySample, init interrupt */
/* Use with compiler "interrupt" keyword */
//IRQ_plug(I2S_TX_EVENT, i2s_txIsr);
/* Use with dispatcher, no "interrupt" keyword */
attrs.ier0mask = 0xFFFF;
attrs.ier1mask = 0xFFFF;
HWI_dispatchPlug(I2S_TX_EVENT, (Fxn)i2s_txIsr, &attrs);
IRQ_enable(I2S_TX_EVENT); /* SampleBySample, enable IRQ for I2S Tx */
#endif
#if defined(SAMPLE_BY_SAMPLE_REC) && !defined(COMBINE_I2S_TX_RX_ISR)
/* SampleBySample, init interrupt */
/* Use with compiler "interrupt" keyword */
IRQ_plug(I2S_RX_EVENT, i2s_rxIsr);
/* Use with dispatcher, no "interrupt" keyword */
//attrs.ier0mask = 0xFFFF;
//attrs.ier1mask = 0xFFFF;
//HWI_dispatchPlug(I2S_RX_EVENT, (Fxn)i2s_rxIsr, &attrs);
IRQ_enable(I2S_RX_EVENT); /* SampleBySample, enable IRQ for I2S Rx */
#endif
#if defined(SAMPLE_BY_SAMPLE_PB) || defined(SAMPLE_BY_SAMLE_REC)
DDC_I2S_transEnable((DDC_I2SHandle)i2sHandleTx, TRUE); /* SampleBySample, enable I2S transmit and receive */
#endif
#ifndef SAMPLE_BY_SAMPLE_PB
i2sTxStart(); // - moved from appPlayAudio()
#endif
#ifdef C5535_EZDSP_DEMO
// clock gating usused peripherals
ClockGating();
#endif
}
}
/* Initializes user interface */
Int16 userInterfaceInit(
Float32 cpuFreq,
Float32 pbnSampFreq,
CSL_Status *pCslStatus
)
{
CSL_SarChSetup SarParam;
CSL_SarChanSel sarChanNo;
CSL_Config hwConfig;
Uint32 tmrPrd;
CSL_Status status;
#ifdef PBN_SIM
PbnSimPrms pbnSimPrms;
#endif
#ifdef PBN_SIM
/* Initialize push-button network simulation */
pbnSimPrms.pbnSimLoop = TRUE;
PbnSimInit(&pbnSimPrms, &gPbnSimState);
#endif
/* Initialize SAR CSL */
SAR_init();
/* Populate SAR object information */
status = SAR_chanOpen(&gsSarObj, CSL_SAR_CHAN_3);
if (status != CSL_SOK)
{
*pCslStatus = status;
return UI_CSL_FAIL;
}
gsSarHandle = &gsSarObj;
/* Initialize SAR registers */
SarParam.SysClkDiv = (Uint16)((Float32)cpuFreq/SAR_MAX_CLK_FREQ + 0.5)-1;
SarParam.OpMode = CSL_SAR_POLLING;
SarParam.MultiCh = CSL_SAR_NO_DISCHARGE;
SarParam.RefVoltage = CSL_SAR_REF_VIN;
status = SAR_chanSetup(gsSarHandle, &SarParam);
if (status != CSL_SOK)
{
*pCslStatus = status;
return UI_CSL_FAIL;
}
/* Initialize A/D conversion type */
status = SAR_A2DMeasParamSet(gsSarHandle, CSL_KEYPAD_MEAS, &sarChanNo);
if ((status != CSL_SOK) || (sarChanNo != CSL_SAR_CHAN_3))
{
*pCslStatus = status;
return UI_CSL_FAIL;
}
/* Initialize A/D conversion type */
status = SAR_chanCycSet(gsSarHandle, CSL_SAR_SINGLE_CONVERSION);
if (status != CSL_SOK)
{
*pCslStatus = status;
return UI_CSL_FAIL;
}
/* Initialize UI control variables */
gPrevPbnState = UI_PUSH_BUTTON_NONE;
genHidReport(UI_PUSH_BUTTON_NONE, gHidReport);
gHidReportReady = FALSE;
/* Open GPT1 -- used as timer for SAR sampling for HID */
gsGptHandle = GPT_open(GPT_1, &gsGptObj, &status);
if (status != CSL_SOK)
{
*pCslStatus = status;
return UI_CSL_FAIL;
}
/* Reset GPT1 */
status = GPT_reset(gsGptHandle);
if(status != CSL_SOK)
{
*pCslStatus = status;
return UI_CSL_FAIL;
}
/* Configure GPT1 */
tmrPrd = (Uint32)((Float32)cpuFreq/2.0/pbnSampFreq + 0.5)-1;
hwConfig.autoLoad = GPT_AUTO_ENABLE;
hwConfig.ctrlTim = GPT_TIMER_ENABLE;
hwConfig.preScaleDiv = GPT_PRE_SC_DIV_0;
hwConfig.prdLow = (Uint16)tmrPrd;
hwConfig.prdHigh = (Uint16)(tmrPrd>>16);
status = GPT_config(gsGptHandle, &hwConfig);
if (status != CSL_SOK)
{
*pCslStatus = status;
return UI_CSL_FAIL;
}
/* Clear pending interrupts */
CSL_SYSCTRL_REGS->TIAFR = 0x7;
return UI_SOK;
}
