void
CyFxGpifAppInit (
void)
{
CyU3PReturnStatus_t status;
CyU3PGpioClock_t gpioClock;
CyU3PPibClock_t pibClock;
/* GPIO module needs to be initialized before SIB is initialized. This is required because
GPIOs are used in the SIB code.
*/
gpioClock.fastClkDiv = 2;
gpioClock.slowClkDiv = 16;
gpioClock.simpleDiv = CY_U3P_GPIO_SIMPLE_DIV_BY_2;
gpioClock.clkSrc = CY_U3P_SYS_CLK;
gpioClock.halfDiv = 0;
status = CyU3PGpioInit (&gpioClock, NULL);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "GPIO Init failed, code=%d\r\n", status);
CyFxGpifAppErrorHandler (status);
}
/* Initialize PIB and load the GPIF waveform. */
pibClock.clkDiv = 2;
pibClock.clkSrc = CY_U3P_SYS_CLK;
pibClock.isHalfDiv = CyFalse;
pibClock.isDllEnable = CyFalse;
status = CyU3PPibInit (CyTrue, &pibClock);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (2, "Error: PIB Init failed with code %d\r\n", status);
CyFxGpifAppErrorHandler (status);
}
status = CyU3PGpifLoad (&Async_Admux_CyFxGpifConfig);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (2, "Error: GPIF load failed with code %d\r\n", status);
CyFxGpifAppErrorHandler (status);
}
/* Register a callback that will receive notifications of incoming requests. */
CyU3PMboxInit (CyFxAppMboxCallback);
}
/* This function starts the RF data transport mechanism. This is the second
* interface of the first and only descriptor. */
static void NuandRFLinkStart(void)
{
uint16_t size = 0;
CyU3PEpConfig_t epCfg;
CyU3PDmaChannelConfig_t dmaCfg;
CyU3PDmaMultiChannelConfig_t dmaMultiConfig;
CyU3PReturnStatus_t apiRetStatus = CY_U3P_SUCCESS;
CyU3PUSBSpeed_t usbSpeed = CyU3PUsbGetSpeed();
NuandAllowSuspend(CyFalse);
NuandGPIOReconfigure(CyTrue, CyTrue);
/* Restart the PIB block, due to a bug where 16-bit to 32-bit GPIF transitions
mess up the first DMA transaction. Restarting the PIB wipes all of the GPIF
configurations */
CyU3PPibClock_t pibClock;
apiRetStatus = CyU3PPibDeInit();
if (apiRetStatus != CY_U3P_SUCCESS) {
CyU3PDebugPrint(4, "P-Port DeInitialization failed, Error Code = %d\n", apiRetStatus);
CyFxAppErrorHandler(apiRetStatus);
}
/* Initialize the P-Port here */
pibClock.clkDiv = 4;
pibClock.clkSrc = CY_U3P_SYS_CLK;
pibClock.isHalfDiv = CyFalse;
/* Enable DLL for async GPIF */
pibClock.isDllEnable = CyFalse;
apiRetStatus = CyU3PPibInit(CyTrue, &pibClock);
if (apiRetStatus != CY_U3P_SUCCESS) {
CyU3PDebugPrint(4, "P-Port Initialization failed, Error Code = %d\n", apiRetStatus);
CyFxAppErrorHandler(apiRetStatus);
}
CyU3PGpioSetValue(GPIO_SYS_RST, CyTrue);
CyU3PGpioSetValue(GPIO_RX_EN, CyFalse);
CyU3PGpioSetValue(GPIO_TX_EN, CyFalse);
CyU3PGpioSetValue(GPIO_SYS_RST, CyFalse);
/* Load the GPIF configuration for loading the RF transceiver */
apiRetStatus = CyU3PGpifLoad(&Rflink_CyFxGpifConfig);
if (apiRetStatus != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "CyU3PGpifLoad failed, Error Code = %d\n",apiRetStatus);
CyFxAppErrorHandler(apiRetStatus);
}
/* Start the state machine. */
apiRetStatus = CyU3PGpifSMStart(RFLINK_START, RFLINK_ALPHA_START);
if (apiRetStatus != CY_U3P_SUCCESS) {
CyU3PDebugPrint(4, "CyU3PGpifSMStart failed, Error Code = %d\n",apiRetStatus);
CyFxAppErrorHandler(apiRetStatus);
}
/* Determine max packet size based on USB speed */
switch (usbSpeed)
{
case CY_U3P_FULL_SPEED:
size = 64;
break;
case CY_U3P_HIGH_SPEED:
size = 512;
break;
case CY_U3P_SUPER_SPEED:
size = 1024;
break;
default:
CyU3PDebugPrint (4, "Error! Invalid USB speed.\n");
CyFxAppErrorHandler (CY_U3P_ERROR_FAILURE);
break;
}
CyU3PMemSet ((uint8_t *)&epCfg, 0, sizeof (epCfg));
epCfg.enable = CyTrue;
epCfg.epType = CY_U3P_USB_EP_BULK;
epCfg.burstLen = (usbSpeed == CY_U3P_SUPER_SPEED ? 15 : 1);
epCfg.streams = 0;
epCfg.pcktSize = size;
/* Producer endpoint configuration */
apiRetStatus = CyU3PSetEpConfig(BLADE_RF_SAMPLE_EP_PRODUCER, &epCfg);
if (apiRetStatus != CY_U3P_SUCCESS) {
CyU3PDebugPrint(4, "CyU3PSetEpConfig failed, Error code = %d\n", apiRetStatus);
CyFxAppErrorHandler (apiRetStatus);
}
/* Consumer endpoint configuration */
apiRetStatus = CyU3PSetEpConfig(BLADE_RF_SAMPLE_EP_CONSUMER, &epCfg);
if (apiRetStatus != CY_U3P_SUCCESS) {
CyU3PDebugPrint(4, "CyU3PSetEpConfig failed, Error code = %d\n", apiRetStatus);
CyFxAppErrorHandler (apiRetStatus);
}
// multi variant
dmaMultiConfig.size = size * 2;
dmaMultiConfig.count = 22;
dmaMultiConfig.validSckCount = 2;
dmaMultiConfig.prodSckId[0] = BLADE_RF_SAMPLE_EP_PRODUCER_USB_SOCKET;
dmaMultiConfig.consSckId[0] = CY_U3P_PIB_SOCKET_2;
dmaMultiConfig.consSckId[1] = CY_U3P_PIB_SOCKET_3;
dmaMultiConfig.dmaMode = CY_U3P_DMA_MODE_BYTE;
dmaMultiConfig.notification = 0;
dmaMultiConfig.cb = 0;
dmaMultiConfig.prodHeader = 0;
dmaMultiConfig.prodFooter = 0;
dmaMultiConfig.consHeader = 0;
dmaMultiConfig.prodAvailCount = 0;
// non multi variant
CyU3PMemSet((uint8_t *)&dmaCfg, 0, sizeof(dmaCfg));
dmaCfg.size = size * 2;
dmaCfg.count = 22;
dmaCfg.prodSckId = BLADE_RF_SAMPLE_EP_PRODUCER_USB_SOCKET;
dmaCfg.consSckId = CY_U3P_PIB_SOCKET_3;
dmaCfg.dmaMode = CY_U3P_DMA_MODE_BYTE;
dmaCfg.notification = 0;
dmaCfg.cb = 0;
dmaCfg.prodHeader = 0;
dmaCfg.prodFooter = 0;
dmaCfg.consHeader = 0;
dmaCfg.prodAvailCount = 0;
apiRetStatus = CyU3PDmaChannelCreate(&glChHandleUtoP, CY_U3P_DMA_TYPE_AUTO, &dmaCfg);
if (apiRetStatus != CY_U3P_SUCCESS) {
CyU3PDebugPrint(4, "CyU3PDmaMultiChannelCreate failed, Error code = %d\n", apiRetStatus);
CyFxAppErrorHandler(apiRetStatus);
}
dmaCfg.prodSckId = CY_U3P_PIB_SOCKET_0;
dmaCfg.consSckId = BLADE_RF_SAMPLE_EP_CONSUMER_USB_SOCKET;
apiRetStatus = CyU3PDmaChannelCreate(&glChHandlePtoU, CY_U3P_DMA_TYPE_AUTO, &dmaCfg);
if (apiRetStatus != CY_U3P_SUCCESS) {
CyU3PDebugPrint(4, "CyU3PDmaMultiChannelCreate failed, Error code = %d\n", apiRetStatus);
CyFxAppErrorHandler(apiRetStatus);
}
/* Flush the Endpoint memory */
CyU3PUsbFlushEp(BLADE_RF_SAMPLE_EP_PRODUCER);
CyU3PUsbFlushEp(BLADE_RF_SAMPLE_EP_CONSUMER);
/* Set DMA channel transfer size. */
apiRetStatus = CyU3PDmaChannelSetXfer (&glChHandleUtoP, BLADE_DMA_TX_SIZE);
if (apiRetStatus != CY_U3P_SUCCESS) {
CyU3PDebugPrint(4, "CyU3PDmaChannelSetXfer Failed, Error code = %d\n", apiRetStatus);
CyFxAppErrorHandler(apiRetStatus);
}
apiRetStatus = CyU3PDmaChannelSetXfer (&glChHandlePtoU, BLADE_DMA_TX_SIZE);
if (apiRetStatus != CY_U3P_SUCCESS) {
CyU3PDebugPrint(4, "CyU3PDmaChannelSetXfer Failed, Error code = %d\n", apiRetStatus);
CyFxAppErrorHandler(apiRetStatus);
}
UartBridgeStart();
glAppMode = MODE_RF_CONFIG;
}
