void Initialize()
{
XGpio_Initialize(&Dips, XPAR_DIP_DEVICE_ID);
XGpio_SetDataDirection(&Dips, 1, 0xff);
XGpio_Initialize(&Btns, XPAR_BUTTON_DEVICE_ID);
XGpio_SetDataDirection(&Btns, 1, 0xff);
XIntc_Initialize(&intCtrl, XPAR_AXI_INTC_0_DEVICE_ID);
XGpio_InterruptEnable(&Btns, 1);
XGpio_InterruptGlobalEnable(&Btns);
XGpio_InterruptEnable(&Dips, 1);
XGpio_InterruptGlobalEnable(&Dips);
XIntc_Enable(&intCtrl, XPAR_AXI_INTC_0_BUTTON_IP2INTC_IRPT_INTR);
XIntc_Enable(&intCtrl, XPAR_AXI_INTC_0_DIP_IP2INTC_IRPT_INTR);
XIntc_Connect(&intCtrl, XPAR_AXI_INTC_0_BUTTON_IP2INTC_IRPT_INTR,
(XInterruptHandler)PushBtnHandler, (void *)0);
XIntc_Connect(&intCtrl, XPAR_AXI_INTC_0_DIP_IP2INTC_IRPT_INTR,
(XInterruptHandler)SwitchHandler,(void *)0);
microblaze_enable_interrupts();
microblaze_register_handler((XInterruptHandler)XIntc_InterruptHandler, (void *)&intCtrl);
XIntc_Start(&intCtrl, XIN_REAL_MODE);
}
int IntcInitFunction(u16 DeviceId, XGpio *GpioInstancePtr)
{
XScuGic_Config *IntcConfig;
int status;
// Interrupt controller initialisation
IntcConfig = XScuGic_LookupConfig(DeviceId);
status = XScuGic_CfgInitialize(&INTCInst, IntcConfig, IntcConfig->CpuBaseAddress);
if(status != XST_SUCCESS) return XST_FAILURE;
// Call to interrupt setup
status = InterruptSystemSetup(&INTCInst);
if(status != XST_SUCCESS) return XST_FAILURE;
// Connect GPIO interrupt to handler
status = XScuGic_Connect(&INTCInst,
INTC_GPIO_INTERRUPT_ID,
(Xil_ExceptionHandler)RF_INTr_Handler,
(void *)GpioInstancePtr);
if(status != XST_SUCCESS) return XST_FAILURE;
// Enable GPIO interrupts interrupt
XGpio_InterruptEnable(GpioInstancePtr, 1);
XGpio_InterruptGlobalEnable(GpioInstancePtr);
// Enable GPIO and timer interrupts in the controller
XScuGic_Enable(&INTCInst, INTC_GPIO_INTERRUPT_ID);
return XST_SUCCESS;
}
void init_GPIO_BUTTONS(XGpio *InstancePtr, u16 Device_ID)
{
int Status;
XGpio_Config *Config;
Config = XGpio_LookupConfig(Device_ID);
Status = XGpio_CfgInitialize(InstancePtr, Config, Config->BaseAddress);
// Initialise GPIO devices
Status = XGpio_Initialize(InstancePtr, Device_ID);
// Set GPIO direction (output for LEDs and input for BTNS)
XGpio_SetDataDirection(InstancePtr, 1, 0xFF);
if(Status != XST_FAILURE) {
xil_printf("BUTTONS initialized!\n \r");
}
XGpio_InterruptEnable(&ButtonsInstancePtr, 1);
XGpio_InterruptGlobalEnable(&ButtonsInstancePtr);
// Initialize interrupt controller
//IntcInitFunction(INTCONTROLLER_DEVICE_ID, InstancePtr);
}
int main() {
init_platform();
// Initialize the GPIO peripherals.
XGpio_Initialize(&gpPB, XPAR_PUSH_BUTTONS_5BITS_DEVICE_ID);
// Set the push button peripheral to be inputs.
XGpio_SetDataDirection(&gpPB, 1, 0x0000001F);
// Enable the global GPIO interrupt for push buttons.
XGpio_InterruptGlobalEnable(&gpPB);
// Enable all interrupts in the push button peripheral.
XGpio_InterruptEnable(&gpPB, 0xFFFFFFFF);
interrupts_init();
print("made it past interrupts_init\n\r");
// apparently we don't need to init it, just HardReset
XAC97_HardReset(XPAR_AXI_AC97_0_BASEADDR);
XAC97_WriteReg(XPAR_AXI_AC97_0_BASEADDR, AC97_ExtendedAudioStat, 1);
XAC97_WriteReg(XPAR_AXI_AC97_0_BASEADDR, AC97_PCM_DAC_Rate, AC97_PCM_RATE_11025_HZ);
XAC97_mSetControl(XPAR_AXI_AC97_0_BASEADDR, AC97_ENABLE_IN_FIFO_INTERRUPT);
XAC97_WriteReg(XPAR_AXI_AC97_0_BASEADDR, AC97_MasterVol, AC97_VOL_MAX);
XAC97_WriteReg(XPAR_AXI_AC97_0_BASEADDR, AC97_PCMOutVol, AC97_VOL_MAX);
while (1);
cleanup_platform();
return 0;
}
void PushBtnHandler(void * CallBackRef)
{
state1 = XGpio_DiscreteRead(&Btns, 1);
pshBtn = 1;
XGpio_InterruptDisable(&Btns, 1);
Delay_50ms();
XGpio_InterruptClear(&Btns, 1);
XGpio_InterruptEnable(&Btns, 1);
}
int IntcInitFunction(u16 DeviceId, XTmrCtr *TmrInstancePtr, XGpio *GpioInstancePtr, XDmaPs *DmaPtr)
{
XScuGic_Config *IntcConfig;
int status;
// Interrupt controller initialization
IntcConfig = XScuGic_LookupConfig(DeviceId);
status = XScuGic_CfgInitialize(&INTCInst, IntcConfig, IntcConfig->CpuBaseAddress);
if(status != XST_SUCCESS) return XST_FAILURE;
// Call to interrupt setup
status = InterruptSystemSetup(&INTCInst);
if(status != XST_SUCCESS) return XST_FAILURE;
// Connect GPIO interrupt to handler
status = XScuGic_Connect(&INTCInst,
INTC_GPIO_INTERRUPT_ID,
(Xil_ExceptionHandler)BTN_Intr_Handler,
(void *)GpioInstancePtr);
if(status != XST_SUCCESS) return XST_FAILURE;
// Connect timer interrupt to handler
status = XScuGic_Connect(&INTCInst,
INTC_TMR_INTERRUPT_ID,
(Xil_ExceptionHandler)TMR_Intr_Handler,
(void *)TmrInstancePtr);
if(status != XST_SUCCESS) return XST_FAILURE;
// Enable GPIO interrupts interrupt
XGpio_InterruptEnable(GpioInstancePtr, 1);
XGpio_InterruptGlobalEnable(GpioInstancePtr);
// Enable GPIO interrupts in the controller
XScuGic_Enable(&INTCInst, INTC_GPIO_INTERRUPT_ID);
// Enable timer interrupts in the controller
XScuGic_Enable(&INTCInst, INTC_TMR_INTERRUPT_ID);
//Lab7 addition starts here
// Connect DMA interrupt to handler
XScuGic_Connect(&INTCInst,DMA_FAULT_INTR,(Xil_InterruptHandler)XDmaPs_FaultISR,(void *)DmaPtr);
XScuGic_Connect(&INTCInst,DMA_DONE_INTR_0,(Xil_InterruptHandler)XDmaPs_DoneISR_0,(void *)DmaPtr);
// Enable DMA interrupts in the controller
XScuGic_Enable(&INTCInst, DMA_DONE_INTR_0);
//Lab7 addition ends here
return XST_SUCCESS;
}
int btn_method(){
XStatus Status= XST_SUCCESS;
if(btn_initialize()!=XST_SUCCESS)
return XST_FAILURE;
Status = XIntc_Initialize(&intCtrl_Btn, INTC_DEVICE_ID);
if ( Status != XST_SUCCESS )
{
if( Status == XST_DEVICE_NOT_FOUND )
{
xil_printf("Interrupt Controller: XST_DEVICE_NOT_FOUND...\r\n");
}
else
{
xil_printf("Interrupt Controller: A different error from XST_DEVICE_NOT_FOUND...\r\n");
}
xil_printf("Interrupt controller: driver failed to be initialized...\r\n");
return XST_FAILURE;
}
xil_printf("Interrupt controller: driver initialized!\r\n");
Status = XIntc_Connect(&intCtrl_Btn, BTN_IR_ID, btn_handler, &Btn);
if ( Status != XST_SUCCESS )
{
xil_printf("Failed to connect the application handlers to the interrupt controller...\r\n");
return XST_FAILURE;
}
xil_printf("Connected to Interrupt Controller!\r\n");
XIntc_Enable(&intCtrl_Btn, BTN_IR_ID);
microblaze_register_handler((XInterruptHandler)XIntc_DeviceInterruptHandler,INTC_DEVICE_ID);//Because it is 0?
microblaze_enable_interrupts();
XGpio_InterruptEnable(&Btn,BTN_IR_MASK);
XGpio_InterruptGlobalEnable(&Btn);
Status = XIntc_Start(&intCtrl_Btn, XIN_REAL_MODE);
if (Status != XST_SUCCESS) {
xil_printf("Failed to start the interrupt controller...\r\n");
return XST_FAILURE;
}
print("Interrupt controller Started!\n\r ");
return XST_SUCCESS;
}
void Switch_INTr_Handler(void *InstancePtr)
{// Disable GPIO interrupts
XGpio_InterruptDisable(&SwitchInst, SWITCH_INT);
// Ignore additional button presses
if ((XGpio_InterruptGetStatus(&SwitchInst) & SWITCH_INT) != SWITCH_INT) {
return;
}
//DO SOMETHING HERE FOR THE INTERRUPT
(void)XGpio_InterruptClear(&SwitchInst, SWITCH_INT);
// Enable GPIO interrupts
XGpio_InterruptEnable(&SwitchInst, SWITCH_INT);
}
void BTNS_Intr_Handler()
{
//Xil_ExceptionDisable();
XGpio_InterruptDisable(&ButtonsInstancePtr, GPIO_BTNS_ID);
int btn_value = XGpio_DiscreteRead(&ButtonsInstancePtr, 1);
if( btn_value == 0x1) {
XGpio_DiscreteWrite(&LedsInstancePtr, 1, 0x5);
xil_printf("Button pressed");
}
//Xil_ExceptionEnable();
XGpio_InterruptEnable(&ButtonsInstancePtr, GPIO_BTNS_ID);
}
static void gpioInterruptHandler(void *CallBackRef)
{
XGpio_InterruptDisable(&gpioInstance, XGPIO_IR_CH1_MASK);
XGpio *gpio = (XGpio *) CallBackRef;
int status = XGpio_InterruptGetStatus(gpio);
if( status & XGPIO_IR_CH1_MASK )
{
XGpio_InterruptClear(&gpioInstance, XGPIO_IR_CH1_MASK);
int gpioReg = XGpio_DiscreteRead(&gpioInstance, 1);
if((gpioReg & RF_INTERRUPT_MASK) == 1)
dataRec = true;
}
XGpio_InterruptEnable(&gpioInstance, XGPIO_IR_CH1_MASK);
}
//***************************************************************
//******************* INTERRUPT FUNCTIONS ***********************
//***************************************************************
void Interrupt_Init(void)
{
//PUSH BUTTON INTERRUPT
/* Code */
XIntc_Initialize(&Intc, INTC_DEVICE_ID);
XGpio_Initialize(&Gpio, GPIO_DEVICE_ID);
XIntc_Connect(&Intc, INTR_ID, GpioIsr, &Gpio);
/* Buttons are all inputs */
XGpio_SetDataDirection(&Gpio, BUTTON_CHANNEL, GPIO_ALL_BUTTONS);
XGpio_InterruptEnable(&Gpio, BUTTON_INTERRUPT);
XGpio_InterruptGlobalEnable(&Gpio);
/* Enable the Interrupt vector at the interrupt controller */
XIntc_Enable(&Intc, INTR_ID);
XExc_Init();
/*****************************************************************
* Initialize the PPC405 exception table and register the interrupt
* controller handler with the exception table
******************************************************************/
XExc_RegisterHandler(XEXC_ID_NON_CRITICAL_INT, (XExceptionHandler)XIntc_InterruptHandler, &Intc);
/* Now Register Timer Interrupt */
XExc_RegisterHandler(XEXC_ID_PIT_INT, (XExceptionHandler)TimerIsr, (void *)0);
/* Enable non-critical exceptions in the PowerPC */
XExc_mEnableExceptions(XEXC_NON_CRITICAL);
/*******************************************************************
* Start the interrput controller such that interrupts are recognized
* and handled by the processor.
********************************************************************/
XIntc_Start(&Intc, XIN_REAL_MODE);
//TIMER INTERRUPT
/* Set Timer Interval (1 Sec) */
XTime_PITSetInterval(0x0F000000);
/* Automatically Restarts Timer */
XTime_PITEnableAutoReload();
/* Clear Timer Reg */
XTime_TSRClearStatusBits(XREG_TSR_CLEAR_ALL);
/* Clear Queued Timer Interrupts */
XTime_PITClearInterrupt();
/* Enable Interrupt */
XTime_PITEnableInterrupt();
}
int InterruptSystemSetup(XScuGic *XScuGicInstancePtr)
{
// Enable interrupt
XGpio_InterruptEnable(&SwitchInst, SWITCH_INT);
XGpio_InterruptGlobalEnable(&SwitchInst);
Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_INT,
(Xil_ExceptionHandler)XScuGic_InterruptHandler,
XScuGicInstancePtr);
Xil_ExceptionEnable();
return XST_SUCCESS;
}
static void prvSetupHardware( void )
{
portBASE_TYPE xStatus;
const unsigned char ucSetToOutput = 0U;
/* Initialize the GPIO for the LEDs. */
xStatus = XGpio_Initialize( &xOutputGPIOInstance, XPAR_LEDS_4BITS_DEVICE_ID );
if( xStatus == XST_SUCCESS )
{
/* All bits on this channel are going to be outputs (LEDs). */
XGpio_SetDataDirection( &xOutputGPIOInstance, ulGPIOOutputChannel, ucSetToOutput );
/* Start with all LEDs off. */
ucGPIOState = 0U;
XGpio_DiscreteWrite( &xOutputGPIOInstance, ulGPIOOutputChannel, ucGPIOState );
}
/* Initialise the GPIO for the button inputs. */
if( xStatus == XST_SUCCESS )
{
xStatus = XGpio_Initialize( &xInputGPIOInstance, XPAR_PUSH_BUTTONS_4BITS_DEVICE_ID );
}
if( xStatus == XST_SUCCESS )
{
/* Install the handler defined in this task for the button input.
*NOTE* The FreeRTOS defined xPortInstallInterruptHandler() API function
must be used for this purpose. */
xStatus = xPortInstallInterruptHandler( XPAR_MICROBLAZE_0_INTC_PUSH_BUTTONS_4BITS_IP2INTC_IRPT_INTR, prvButtonInputInterruptHandler, NULL );
if( xStatus == pdPASS )
{
/* Set buttons to input. */
XGpio_SetDataDirection( &xInputGPIOInstance, ulGPIOInputChannel, ~( ucSetToOutput ) );
/* Enable the button input interrupts in the interrupt controller.
*NOTE* The vPortEnableInterrupt() API function must be used for this
purpose. */
vPortEnableInterrupt( XPAR_MICROBLAZE_0_INTC_PUSH_BUTTONS_4BITS_IP2INTC_IRPT_INTR );
/* Enable GPIO channel interrupts. */
XGpio_InterruptEnable( &xInputGPIOInstance, ulGPIOInputChannel );
XGpio_InterruptGlobalEnable( &xInputGPIOInstance );
}
}
configASSERT( ( xStatus == pdPASS ) );
}
void GpioIsr(void *InstancePtr){
XGpio *GpioPtr = (XGpio *)InstancePtr;
u32 gpio_read;
XGpio_InterruptDisable(GpioPtr, GPIO_INPUT_INTERRUPT);
gpio_read = XGpio_DiscreteRead(GpioPtr, GPIO_INPUT_CHANNEL);
if(gpio_read & GPIO_MASK_PB_U) pb_u_callback();
if(gpio_read & GPIO_MASK_PB_M) pb_m_callback();
if(gpio_read & GPIO_MASK_PB_D) pb_d_callback();
(void)XGpio_InterruptClear(GpioPtr, GPIO_INPUT_INTERRUPT);
XGpio_InterruptEnable(GpioPtr, GPIO_INPUT_INTERRUPT);
return;
}
int interruptManager (unsigned int * framePointer0) {
init_platform();
// Initialize the GPIO peripherals.
int success;
// Used for CPU utilization. Uncomment if desired
// XTmrCtr_Initialize(instPtr, 0);
success = XGpio_Initialize(&gpPB, XPAR_PUSH_BUTTONS_5BITS_DEVICE_ID);
// Set the push button peripheral to be inputs.
XGpio_SetDataDirection(&gpPB, 1, 0x0000001F);
// Enable the global GPIO interrupt for push buttons.
XGpio_InterruptGlobalEnable(&gpPB);
// Enable all interrupts in the push button peripheral.
XGpio_InterruptEnable(&gpPB, 0xFFFFFFFF);
// Reset the XAC97 Chip
XAC97_HardReset(XPAR_AXI_AC97_0_BASEADDR);
XAC97_mSetControl(XPAR_AXI_AC97_0_BASEADDR, AC97_ENABLE_IN_FIFO_INTERRUPT);
XAC97_mSetControl(AC97_ExtendedAudioStat, AC97_EXTENDED_AUDIO_CONTROL_VRA);
setVolLevel(AC97_VOL_MAX);
clearAllSounds();
microblaze_register_handler(interrupt_handler_dispatcher, NULL);
XIntc_EnableIntr(XPAR_INTC_0_BASEADDR,
(XPAR_FIT_TIMER_0_INTERRUPT_MASK | XPAR_PUSH_BUTTONS_5BITS_IP2INTC_IRPT_MASK | XPAR_AXI_AC97_0_INTERRUPT_MASK));
XIntc_MasterEnable(XPAR_INTC_0_BASEADDR);
microblaze_enable_interrupts();
// Uncomment for CPU utilization stats
/*XTmrCtr Timer;
XTmrCtr *instPtr = &Timer;
XTmrCtr_Initialize(instPtr, 0);
XTmrCtr_Start(instPtr, 0);*/
while(!isEndOfGame()); // Program never ends.
// Uncomment for CPU utilization stats
/*XTmrCtr_Stop(instPtr, 0);
int val = (int) XTmrCtr_GetValue(instPtr, 0);
xil_printf("%d\n\r", val);*/
clearAllSounds();
XAC97_ClearFifos(XPAR_AXI_AC97_0_BASEADDR);
drawGameOver();
cleanup_platform();
return 0;
}
int main (void) {
init_platform();
// Initialize the GPIO peripherals.
XGpio_Initialize(&gpPB, XPAR_PUSH_BUTTONS_5BITS_DEVICE_ID);
// Set the push button peripheral to be inputs.
XGpio_SetDataDirection(&gpPB, 1, 0x0000001F);
// Enable the global GPIO interrupt for push buttons.
XGpio_InterruptGlobalEnable(&gpPB);
// Enable all interrupts in the push button peripheral.
XGpio_InterruptEnable(&gpPB, 0xFFFFFFFF);
pit_init();
pit_load_value(1000000); // init to 10 ms
pit_enable_load();
pit_enable_interrupts();
pit_enable_count();
microblaze_register_handler(interrupt_handler_dispatcher, NULL);
XIntc_EnableIntr(XPAR_INTC_0_BASEADDR,
(XPAR_PIT_0_MYINTERRUPT_MASK | XPAR_PUSH_BUTTONS_5BITS_IP2INTC_IRPT_MASK));
XIntc_MasterEnable(XPAR_INTC_0_BASEADDR);
microblaze_enable_interrupts();
// Tell stdin that it gets zero! none! (as far as buffering goes)
setvbuf(stdin, NULL, _IONBF, 0);
while(1){
// blocking call: wait until a character is present
char input = getchar();
// Handle the UART control of game
uartControl_handle(input);
}
cleanup_platform();
return 0;
}
static int SetupSdGpio(XGpio *sGpio) {
int Status;
// Initialize the GPIO driver. If an error occurs then exit.
Status = XGpio_Initialize(sGpio, SD_GPIO_DEVICE_ID);
if (Status != XST_SUCCESS) {
xil_printf("Failed to initialize SD GPIO driver: %d\n\r", Status);
return XST_FAILURE;
}
// Set the direction for all signals to be inputs.
XGpio_SetDataDirection(sGpio, SD_GPIO_CHANNEL, SD_GPIO_CARD_PRESENT_MASK);
XGpio_SetDataDirection(sGpio, 1, ~0);
XGpio_InterruptEnable(sGpio, XGPIO_IR_CH1_MASK);
XGpio_InterruptGlobalEnable(sGpio);
XGpio_SelfTest(sGpio);
// TODO: add Interrupt configuration code.
return XST_SUCCESS;
}
int main (void) {
init_platform();
// Initialize the GPIO peripherals.
int success = XGpio_Initialize(&gpPB, XPAR_PUSH_BUTTONS_5BITS_DEVICE_ID);
// Set the push button peripheral to be inputs.
XGpio_SetDataDirection(&gpPB, 1, 0x0000001F);
// Enable the global GPIO interrupt for push buttons.
XGpio_InterruptGlobalEnable(&gpPB);
// Enable all interrupts in the push button peripheral.
XGpio_InterruptEnable(&gpPB, 0xFFFFFFFF);
microblaze_register_handler(interrupt_handler_dispatcher, NULL);
custom_XIntc_EnableIntr(XPAR_INTC_0_BASEADDR,
(XPAR_FIT_TIMER_0_INTERRUPT_MASK | XPAR_PUSH_BUTTONS_5BITS_IP2INTC_IRPT_MASK));
custom_XIntc_MasterEnable(XPAR_INTC_0_BASEADDR);
microblaze_enable_interrupts();
while(1); // Program never ends.
cleanup_platform();
return 0;
}
/**
* This function is the Interrupt Service Routine for the GPIO device. It
* will be called by the processor whenever an interrupt is asserted by the
* device.
*
* This function will detect the push button on the board has changed state
* and then turn on or off the LED.
*
* @param InstancePtr is the GPIO instance pointer to operate on.
* It is a void pointer to meet the interface of an interrupt
* processing function.
*
* @return None.
*
* @note None.
*
*****************************************************************************/
void GpioIsr(void *InstancePtr)
{
XGpio *GpioPtr = (XGpio *)InstancePtr;
u32 Led;
u32 LedState;
u32 Buttons;
u32 ButtonFound;
u32 ButtonsChanged = 0;
static u32 PreviousButtons;
/*
* Disable the interrupt
*/
XGpio_InterruptDisable(GpioPtr, BUTTON_INTERRUPT);
/* Keep track of the number of interrupts that occur */
InterruptCount++;
/*
* There should not be any other interrupts occuring other than the
* the button changes
*/
if ((XGpio_InterruptGetStatus(GpioPtr) & BUTTON_INTERRUPT) !=
BUTTON_INTERRUPT) {
return;
}
/*
* Read state of push buttons and determine which ones changed
* states from the previous interrupt. Save a copy of the buttons
* for the next interrupt
*/
Buttons = XGpio_DiscreteRead(GpioPtr, BUTTON_CHANNEL);
ButtonsChanged = Buttons ^ PreviousButtons;
PreviousButtons = Buttons;
/*
* Handle all button state changes that occurred since the last
* interrupt
*/
while (ButtonsChanged != 0) {
/*
* Determine which button changed state and then get
* the current state of the associated LED
*/
Led = MapButton2Led(ButtonsChanged, &ButtonFound);
LedState = XGpio_DiscreteRead(GpioPtr, LED_CHANNEL) & Led;
/*
* Clear the button that is being processed so that it is
* done and others can be handled also
*/
ButtonsChanged &= ~ButtonFound;
/* Toggle the state of the LED */
if (LedState) {
XGpio_DiscreteClear(GpioPtr, LED_CHANNEL, Led);
} else {
XGpio_DiscreteSet(GpioPtr, LED_CHANNEL, Led);
}
}
/* Clear the interrupt such that it is no longer pending in the GPIO */
(void)XGpio_InterruptClear(GpioPtr, BUTTON_INTERRUPT);
/*
* Enable the interrupt
*/
XGpio_InterruptEnable(GpioPtr, BUTTON_INTERRUPT);
}
XStatus GpioSetupIntrSystem(XIntc* IntcInstancePtr,
XGpio* InstancePtr,
Xuint16 DeviceId,
Xuint16 IntrId,
Xuint16 IntrMask)
{
XStatus Result;
GlobalIntrMask = IntrMask;
#ifndef TESTAPP_GEN
/*
* Initialize the interrupt controller driver so that it's ready to use.
* specify the device ID that was generated in xparameters.h
*/
Result = XIntc_Initialize(IntcInstancePtr, INTC_DEVICE_ID);
if (Result != XST_SUCCESS)
{
return Result;
}
#endif
/* Hook up simple interrupt service routine for TestApp*/
Result = XIntc_Connect(IntcInstancePtr, IntrId,
(XInterruptHandler)GpioDriverHandler,
InstancePtr);
/*
* Enable the GPIO channel interrupts so that push button can be detected
* and enable interrupts for the GPIO device
*/
XGpio_InterruptEnable(InstancePtr, IntrMask);
XGpio_InterruptGlobalEnable(InstancePtr);
/* Enable the interrupt vector at the interrupt controller */
XIntc_Enable(IntcInstancePtr, IntrId);
#ifndef TESTAPP_GEN
/*
* Initialize the PPC405 exception table and register the interrupt
* controller handler with the exception table
*/
XExc_Init();
XExc_RegisterHandler(XEXC_ID_NON_CRITICAL_INT,
(XExceptionHandler)XIntc_InterruptHandler,IntcInstancePtr);
/* Enable non-critical exceptions in the PowerPC */
XExc_mEnableExceptions(XEXC_NON_CRITICAL);
/*
* Start the interrupt controller such that interrupts are recognized
* and handled by the processor.
*/
Result = XIntc_Start(IntcInstancePtr, XIN_REAL_MODE);
#endif
if (Result != XST_SUCCESS)
{
return Result;
}
return XST_SUCCESS;
}
void GpioHandler(void *InstancePtr)
{
/*
Game System Interface (16 bits)
#define GAME_TRUCK_IS_BASE_M 0x0001
#define GAME_HAVE_FLAG_M 0x0002
#define GAME_TRUCK_ALIVE_M 0x0004
#define GAME_TRUCK_REGISTERED_M 0x0008
#define GAME_TEAM_NUM_1_M 0x0010
#define GAME_TEAM_NUM_0_M 0x0020
#define GAME_STATE_1_M 0x0040 //stop, go, pause, win
#define GAME_STATE_0_M 0x0080
#define GAME_KILL_SHOT 0x0100
#define GAME_PASS_SHOT 0x0200
#define GAME_REVIVE_SHOT 0x0400
#define GAME_HIT_ACK 0x0800
#define GAME_MISS_ACK 0x1000
#define HELIOS_ENABLE_GYRO 0x2000
#define GAME_NOT_IN_PLAY 0x4000
#define GAME_WAIT_TO_SHOOT 0x8000
*/
XGpio *GpioPtr = (XGpio *)InstancePtr;
u32 gameSystem;
//u32 gameSystemChanged = 0;
static u32 gameSystemPrevious = 0;
/*
* Disable the interrupt
*/
XGpio_InterruptDisable(GpioPtr, XGPIO_IR_CH2_MASK);
/*
* There should not be any other interrupts occuring other than the
* the button changes
*/
if ((XGpio_InterruptGetStatus(GpioPtr) & XGPIO_IR_CH2_MASK) !=
XGPIO_IR_CH2_MASK) {
return;
}
/*
* Read state of push buttons and determine which ones changed
* states from the previous interrupt. Save a copy of the buttons
* for the next interrupt
*/
gameSystem = XGpio_DiscreteRead(GpioPtr, GAME_SYSTEM_GPIO_CHANNEL);
//gameSystemChanged = gameSystem ^ gameSystemPrevious;
if (((~gameSystemPrevious) & GAME_WAIT_TO_SHOOT) && (gameSystem & GAME_WAIT_TO_SHOOT)) {
// Wait to shoot went from low to high
XGpio_DiscreteClear(&Gpio, GAME_SYSTEM_GPIO_CHANNEL, CurrentShotType);
CurrentShotType = 0;
}
/* Clear the interrupt such that it is no longer pending in the GPIO */
(void)XGpio_InterruptClear(GpioPtr, XGPIO_IR_CH2_MASK);
/*
* Enable the interrupt
*/
gameSystemPrevious = gameSystem;
XGpio_InterruptEnable(GpioPtr, XGPIO_IR_CH2_MASK);
}
void enable_interrupt_gpio( cyg_uint32 mask )
{
XGpio_InterruptEnable(&gpio_manager_device, mask);
}
int interrupt_init(){
int Result;
Result = XIntc_Initialize(&InterruptController, INTC_DEVICE_ID);
if (Result != XST_SUCCESS) {
return Result;
}
Result = XIntc_Connect(&InterruptController, INTC_GPIO_INTERRUPT_ID, (XInterruptHandler)GpioIsr, &Gpio);
if (Result != XST_SUCCESS) {
warp_printf(PL_ERROR,"Failed to connect GPIO to XIntc\n");
return Result;
}
Result = XIntc_Connect(&InterruptController, UARTLITE_INT_IRQ_ID, (XInterruptHandler)XUartLite_InterruptHandler, &UartLite);
if (Result != XST_SUCCESS) {
warp_printf(PL_ERROR,"Failed to connect XUartLite to XIntc\n");
return Result;
}
//Connect Timer to Interrupt Controller
Result = XIntc_Connect(&InterruptController, TMRCTR_INTERRUPT_ID, (XInterruptHandler)XTmrCtr_CustomInterruptHandler, &TimerCounterInst);
//Result = XIntc_Connect(&InterruptController, TMRCTR_DEVICE_ID, (XInterruptHandler)timer_handler, &TimerCounterInst);
if (Result != XST_SUCCESS) {
xil_printf("Failed to connect XTmrCtr to XIntC\n");
return -1;
}
wlan_lib_setup_mailbox_interrupt(&InterruptController);
wlan_eth_setup_interrupt(&InterruptController);
Result = XIntc_Start(&InterruptController, XIN_REAL_MODE);
if (Result != XST_SUCCESS) {
warp_printf(PL_ERROR,"Failed to start XIntc\n");
return Result;
}
XIntc_Enable(&InterruptController, INTC_GPIO_INTERRUPT_ID);
XIntc_Enable(&InterruptController, UARTLITE_INT_IRQ_ID);
XIntc_Enable(&InterruptController, TMRCTR_INTERRUPT_ID);
Xil_ExceptionInit();
Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_INT,(Xil_ExceptionHandler)XIntc_InterruptHandler, &InterruptController);
/* Enable non-critical exceptions */
Xil_ExceptionEnable();
XGpio_InterruptEnable(&Gpio, GPIO_INPUT_INTERRUPT);
XGpio_InterruptGlobalEnable(&Gpio);
XUartLite_SetSendHandler(&UartLite, SendHandler, &UartLite);
XUartLite_SetRecvHandler(&UartLite, RecvHandler, &UartLite);
XUartLite_EnableInterrupt(&UartLite);
XUartLite_Recv(&UartLite, ReceiveBuffer, UART_BUFFER_SIZE);
return 0;
}
int main() {
init_platform();
static XGpio pshBtns;
static XIntc intCtrl;
Xuint32 Sample_L;
Xuint32 Sample_R;
pAudioData = (DDR2_BASEADDR + 0x02000000);
pFFTData = (pAudioData + lNumSamples);
lBtnStateOld = 0x00000000;
fsRunAction = 0;
/*
*Initialize the driver structs for the Push button and interrupt cores.
*This allows the API functions to be used with these cores.
*/
XGpio_Initialize(&pshBtns, BTNS_DEVICE_ID);
XIntc_Initialize(&intCtrl, INTC_DEVICE_ID);
/*
* Connect the function PushBtnHandler to the interrupt controller so that
* it is called whenever the Push button GPIO core signals an interrupt.
*/
XIntc_Connect(&intCtrl, BTNS_IRPT_ID, PushBtnHandler, &pshBtns);
/*
* Enable interrupts at the interrupt controller
*/
XIntc_Enable(&intCtrl, BTNS_IRPT_ID);
/*
* Register the interrupt controller with the microblaze
* processor and then start the Interrupt controller so that it begins
* listening to the interrupt core for triggers.
*/
microblaze_register_handler(XIntc_DeviceInterruptHandler, INTC_DEVICE_ID);
microblaze_enable_interrupts();
XIntc_Start(&intCtrl, XIN_REAL_MODE);
/*
* Enable the push button GPIO core to begin sending interrupts to the
* interrupt controller in response to changes in the button states
*/
XGpio_InterruptEnable(&pshBtns, lBtnChannel);
XGpio_InterruptGlobalEnable(&pshBtns);
/*
* Wait for AC97 to become ready
*/
while (!(AC97_Link_Is_Ready(AC97_BASEADDR)))
;
/*
* Set TAG to configure codec
*/
AC97_Set_Tag_And_Id(AC97_BASEADDR, 0xF800);
/*
* Enable audio output and set volume
*/
AC97_Unmute(AC97_BASEADDR, AC97_MASTER_VOLUME_OFFSET);
AC97_Unmute(AC97_BASEADDR, AC97_HEADPHONE_VOLUME_OFFSET);
AC97_Unmute(AC97_BASEADDR, AC97_PCM_OUT_VOLUME_OFFSET);
AC97_Set_Volume(AC97_BASEADDR, AC97_MASTER_VOLUME_OFFSET, BOTH_CHANNELS,
VOLUME_MAX);
AC97_Set_Volume(AC97_BASEADDR, AC97_HEADPHONE_VOLUME_OFFSET, BOTH_CHANNELS,
VOLUME_MIN);
AC97_Set_Volume(AC97_BASEADDR, AC97_PCM_OUT_VOLUME_OFFSET, BOTH_CHANNELS,
VOLUME_MAX);
while (1) {
/**************************
* Play recorded sample
**************************/
if (sampleMax != 0) {
if (fsRunAction & bitPlay) {
/*
* Set AC'97 codec TAG to send and receive data in the PCM slots
*/
AC97_Set_Tag_And_Id(AC97_BASEADDR, 0x9800);
Count_Samples = 0;
// Xil_Out32(LED_BASEADDR, bitPlayLED); //turn on LED
int showLED = 0;
while ((Count_Samples / 8) < lNumSamples) {
/*
* Block execution until next frame is ready
*/
AC97_Wait_For_New_Frame(AC97_BASEADDR);
/*
* Read audio data from memory
*/
Sample_L = XIo_In32 (pAudioData + Count_Samples);
Count_Samples = Count_Samples + 4;
Sample_R = XIo_In32 (pAudioData + Count_Samples);
Count_Samples = Count_Samples + 4;
/* our code */
/* if(Count_Samples < 100) { */
// printf("Left: %i",(int)Sample_L);
// printf("Right: %i",(int)Sample_R);
/* } */
if (showLED % 4000 == 0) {
/* middleLeft /= 8000;
middleRight /= 8000; */
// Xil_Out32(LED_BASEADDR, Sample_L & AC97_META_MASK);
// printf("Left: %d",(int)Sample_L);
// printf("Right: %d",(int)Sample_R);
setVolumeLEDs(Sample_L & AC97_DATA_MASK,
Sample_R & AC97_DATA_MASK);
/* middleLeft = 0;
middleRight = 0;
} else {
middleLeft += Sample_L;
middleRight += Sample_R; */
}
/*
* Send audio data to codec
*/XIo_Out32 ((AC97_BASEADDR + AC97_PCM_OUT_L_OFFSET), Sample_L);
XIo_Out32 ((AC97_BASEADDR + AC97_PCM_OUT_R_OFFSET), Sample_R);
showLED++;
}
Xil_Out32(LED_BASEADDR, 0); //Turn off LED
fsRunAction = 0; //Forget any button presses that occurred
}
}
/**************************
* Output a square wave
**************************/
if (fsRunAction & bitGenWave) {
//generate square on left, right and then both channels
GenSquare(AC97_BASEADDR, LEFT_CHANNEL, 1000, 500);
GenSquare(AC97_BASEADDR, RIGHT_CHANNEL, 1000, 500);
GenSquare(AC97_BASEADDR, BOTH_CHANNELS, 1000, 500);
fsRunAction = 0;
}
/**************************
* LEDTest
**************************/
if (fsRunAction & bitLEDTest) {
/* Xil_Out32(LED_BASEADDR, volumeLED0);
sleepTimer(1000);
Xil_Out32(LED_BASEADDR, volumeLED1);
sleepTimer(1000);
Xil_Out32(LED_BASEADDR, volumeLED2);
sleepTimer(1000);
Xil_Out32(LED_BASEADDR, volumeLED3);
sleepTimer(1000);
Xil_Out32(LED_BASEADDR, volumeLED4);
sleepTimer(5000);
Xil_Out32(LED_BASEADDR, volumeLED5);
sleepTimer(5000);
Xil_Out32(LED_BASEADDR, volumeLED6);
sleepTimer(5000);
Xil_Out32(LED_BASEADDR, volumeLED7);
sleepTimer(5000);
Xil_Out32(LED_BASEADDR, 0);
Xil_Out32(LED_BASEADDR, allLEDs);
sleepTimer(5000);
Xil_Out32(LED_BASEADDR, 0);
fsRunAction = 0;*/
Xil_Out32(LED_BASEADDR, volumeLED7);
fftSample(pAudioData, lNumSamples, 0);
Xil_Out32(LED_BASEADDR, 0);
// fftSample(pFFTData, pAudioData, lNumSamples, 1);
// addOriginMeta();
// if (compareValues(pAudioData, pFFTData)) {
// Xil_Out32(LED_BASEADDR, allLEDs);
// sleepTimer(5000);
// Xil_Out32(LED_BASEADDR, 0);
// Xil_Out32(LED_BASEADDR, allLEDs);
// sleepTimer(5000);
// Xil_Out32(LED_BASEADDR, 0);
// } else {
// Xil_Out32(LED_BASEADDR, volumeLED0);
// sleepTimer(1000);
// Xil_Out32(LED_BASEADDR, volumeLED1);
// sleepTimer(1000);
// Xil_Out32(LED_BASEADDR, volumeLED2);
// sleepTimer(1000);
// Xil_Out32(LED_BASEADDR, volumeLED3);
// sleepTimer(1000);
// Xil_Out32(LED_BASEADDR, volumeLED4);
// }
fsRunAction = 0;
}
/**************************
* Record audio from input
**************************/
if (fsRunAction & bitRec) {
AC97_Set_Tag_And_Id(AC97_BASEADDR, 0xF800); //Set to configure
/*
* Select input source, enable it, and then set the volume
*/
if (Xil_In32(SW_BASEADDR) & bitSw0) {
AC97_Select_Input(AC97_BASEADDR, BOTH_CHANNELS,
AC97_LINE_IN_SELECT);
AC97_Unmute(AC97_BASEADDR, AC97_LINE_IN_VOLUME_OFFSET);
AC97_Set_Volume(AC97_BASEADDR, AC97_LINE_IN_VOLUME_OFFSET,
BOTH_CHANNELS, VOLUME_MAX);
} else {
AC97_Select_Input(AC97_BASEADDR, BOTH_CHANNELS, AC97_MIC_SELECT);
AC97_Unmute(AC97_BASEADDR, AC97_MIC_VOLUME_OFFSET);
AC97_Set_Volume(AC97_BASEADDR, AC97_MIC_VOLUME_OFFSET,
BOTH_CHANNELS, VOLUME_MID);
}
//set record gain
AC97_Set_Volume(AC97_BASEADDR, AC97_RECORD_GAIN_OFFSET,
BOTH_CHANNELS, 0x00);
AC97_Set_Tag_And_Id(AC97_BASEADDR, 0x9800); //Set to Send/Receive data
Count_Samples = 0;
Xil_Out32(LED_BASEADDR, bitRecLED); //Turn on LED
middle = 0;
sampleMax = MIN_UINT;
countSamples = 0;
sampleMin = MAX_UINT;
while ((Count_Samples / 8) < lNumSamples) {
AC97_Wait_For_New_Frame(AC97_BASEADDR);
/*
* Read audio data from codec
*/
Sample_L = XIo_In32(AC97_BASEADDR + AC97_PCM_IN_L_OFFSET);
Sample_R = XIo_In32(AC97_BASEADDR + AC97_PCM_IN_R_OFFSET);
/*
* our code
*/
captureSampleReference(Sample_L & AC97_DATA_MASK,
Sample_R & AC97_DATA_MASK);
/*
* Write audio data to memory
*/
XIo_Out32 (pAudioData + Count_Samples, Sample_L);
Count_Samples = Count_Samples + 4;
XIo_Out32 (pAudioData + Count_Samples, Sample_R);
Count_Samples = Count_Samples + 4;
}
//Set Tag and ID to configure the codec
AC97_Set_Tag_And_Id(AC97_BASEADDR, 0xF800);
/*
* Disable the input source
*/
if (Xil_In32(SW_BASEADDR) & bitSw0) {
AC97_Mute(AC97_BASEADDR, AC97_LINE_IN_VOLUME_OFFSET);
} else {
AC97_Mute(AC97_BASEADDR, AC97_MIC_VOLUME_OFFSET);
}
middle = middle / countSamples;
Xil_Out32(LED_BASEADDR, 0); //Turn off LED
fsRunAction = 0;
}
}
cleanup_platform();
return 0;
}
void enableButtonInterrupt(void) {
xil_printf("\r\nEnabling button interrupts...");
XGpio_InterruptEnable(&pshBtns, lBtnChannel);
XGpio_InterruptGlobalEnable(&pshBtns);
xil_printf("done");
}
void BTN_Intr_Handler(void *InstancePtr)
{
// Ignore additional button presses
if ((XGpio_InterruptGetStatus(&BTNInst) & BTN_INT) !=
BTN_INT) {
return;
// Disable GPIO interrupts
XGpio_InterruptDisable(&BTNInst, BTN_INT);
}
btn_value = XGpio_DiscreteRead(&BTNInst, 1);
switch (btn_value){
//Checking if BTNC was pressed. Action: Show Alex in the middle
case 1:
x=8;
y=2;
clear_OLED();
show_alex(x,y);
break;
//Checking if BTND was pressed. Action: Check for boundary and move Alex down.
case 2:
if (y<3)
{
y=y+1;
clear_OLED();
show_alex(x,y);
}
break;
//Checking if BTNL was pressed. Action: Check for boundary and move Alex left.
case 4:
if (x>0)
{
x=x-1;
clear_OLED();
show_alex(x,y);
}
break;
//Checking if BTNR was pressed. Action: Check for boundary and move Alex right.
case 8:
if (x<15)
{
x=x+1;
clear_OLED();
show_alex(x,y);
}
break;
//Checking if BTNU was pressed. Action: Check for boundary and move Alex up.
case 16:
if (y>0)
{
y=y-1;
clear_OLED();
show_alex(x,y);
}
break;
default:
break;
}
// Acknowledge GPIO interrupts
(void)XGpio_InterruptClear(&BTNInst, BTN_INT);
// Enable GPIO interrupts
XGpio_InterruptEnable(&BTNInst, BTN_INT);
}
/**
* This function is the Interrupt Service Routine for the GPIO device.
*
* This function will detect the push button on the board has changed state
* and then prepare data to be sent to the host upon receiving the Get
*
* @param InstancePtr is the GPIO component to operate on. It is a void
* pointer to meet the interface of an interrupt processing
* function.
*
* @return None.
*
* @note None.
*
*****************************************************************************/
void GpioIsr(void *InstancePtr)
{
XGpio *GpioPtr = (XGpio *)InstancePtr;
u32 Buttons;
u32 ButtonsChanged = 0;
static u32 PreviousButtons;
u8 Index = 0;
static u8 State = 0;
const u8 Position[] = {-4, -4, -4, 0, 4, 4, 4, 0, -4, -4};
u8 TxBuf[4];
/*
* Disable the interrupt
*/
XGpio_InterruptDisable(GpioPtr, BUTTON_INTERRUPT);
/*
* There should not be any other interrupts occurring other than the
* the button changes.
*/
if ((XGpio_InterruptGetStatus(GpioPtr) & BUTTON_INTERRUPT) !=
BUTTON_INTERRUPT) {
return;
}
/*
* Read state of push buttons and determine which ones changed
* states from the previous interrupt. Save a copy of the buttons
* for the next interrupt.
*/
Buttons = (XGpio_DiscreteRead(GpioPtr, BUTTON_CHANNEL) & 0x1F) ;
ButtonsChanged = Buttons ^ PreviousButtons;
PreviousButtons = Buttons;
/*
* Handle all button state changes that occurred since the last
* interrupt
*/
while (ButtonsChanged != 0) {
/*
* Determine which button changed state and then get
* the current state of the associated LED
*/
if (ButtonsChanged & 0x1F){
if (ButtonsChanged & EXIT_BUTTON){
StopTest = TRUE;
break;
}
TxBuf[1] = Position [State];
TxBuf[2] = Position [State+2];
++State;
for (Index =0; Index < 5; Index++){
XUsb_EpDataSend(&UsbInstance, 1,
(unsigned char *)&TxBuf[0], 4);
}
if (State > 7)
State = 0;
}
break;
}
/*
* Clear the interrupt such that it is no longer pending in the GPIO
*/
(void)XGpio_InterruptClear(GpioPtr, BUTTON_INTERRUPT);
/*
* Enable the interrupt
*/
XGpio_InterruptEnable(GpioPtr, BUTTON_INTERRUPT);
}
/**
*
* This function sets up the interrupt system such that interrupts can occur
* for the USB and GPIO
*
* @param Intc is the pointer to the Interrupt controller instance.
* @param UsbInstancePtr is a pointer to the USB device instance.
* @param Gpio is pointer to the GPIO instance.
*
* @return
* - XST_SUCCESS if successful.
* - XST_FAILURE. if it fails.
*
* @note None.
*
*******************************************************************************/
static int SetupInterruptSystem(XUsb *UsbInstancePtr, XGpio *Gpio)
{
int Status;
/*
* Initialize the interrupt controller driver.
*/
Status = XIntc_Initialize(&Intc, INTC_DEVICE_ID);
if (Status != XST_SUCCESS){
return XST_FAILURE;
}
/*
* Connect a device driver handler that will be called when an interrupt
* for the USB device occurs.
*/
Status = XIntc_Connect(&Intc, USB_INTR,
(XInterruptHandler)XUsb_IntrHandler,
(void *)UsbInstancePtr);
if (Status != XST_SUCCESS){
return XST_FAILURE;
}
/*
* Connect a device driver handler that will be called when an interrupt
* for the GPIO device occurs.
*/
XIntc_Connect(&Intc, INTC_GPIO_INTERRUPT_ID,
(XInterruptHandler)GpioIsr,(void *) Gpio);
/*
* Start the interrupt controller such that interrupts are enabled for
* all devices that cause interrupts, specific real mode so that
* the USB can cause interrupts through the interrupt controller.
*/
Status = XIntc_Start(&Intc, XIN_REAL_MODE);
if (Status != XST_SUCCESS){
return XST_FAILURE;
}
/*
* Enable the GPIO channel interrupts so that push button can be
* detected and enable interrupts for the GPIO device
*/
XGpio_InterruptEnable(Gpio, BUTTON_INTERRUPT);
XGpio_InterruptGlobalEnable(Gpio);
/*
* Enable the interrupt for GPIO
*/
XIntc_Enable(&Intc, INTC_GPIO_INTERRUPT_ID);
/*
* Enable the interrupt for the USB.
*/
XIntc_Enable(&Intc, USB_INTR);
/*
* Initialize the exception table
*/
Xil_ExceptionInit();
/*
* Register the interrupt controller handler with the exception table
*/
Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_INT,
(Xil_ExceptionHandler)XIntc_InterruptHandler,
&Intc);
/*
* Enable non-critical exceptions
*/
Xil_ExceptionEnable();
return XST_SUCCESS;
}
void vApplicationSetupHardware( void )
{
XScuGic * InterruptController = prvGetInterruptControllerInstance();
int iPinNumberEMIO = 54;
u32 uPinDirectionEMIO = 0x0;
u32 uPinDirection = 0x1;
print("##### Application Starts #####\n\r");
print("\r\n");
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//Step-1 :AXI GPIO Initialization
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
u32 xStatus = XGpio_Initialize(&GPIOInstance_Ptr,XPAR_AXI_GPIO_0_DEVICE_ID);
if(XST_SUCCESS != xStatus)
print("GPIO INIT FAILED\n\r");
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//Step-2 :AXI GPIO Set the Direction
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
XGpio_SetDataDirection(&GPIOInstance_Ptr, 1,1);
//set up GPIO interrupt
XGpio_InterruptEnable(&GPIOInstance_Ptr, 0x1);
XGpio_InterruptGlobalEnable(&GPIOInstance_Ptr);
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//Step-3 :AXI Timer Initialization
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
xStatus = XTmrCtr_Initialize(&TimerInstancePtr, XPAR_AXI_TIMER_0_DEVICE_ID);
if(XST_SUCCESS != xStatus)
print("TIMER INIT FAILED \n\r");
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//Step-4 :Set Timer Handler
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
XTmrCtr_SetHandler(&TimerInstancePtr, Timer_InterruptHandler, &TimerInstancePtr);
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//Step-5 :Setting timer Reset Value
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
XTmrCtr_SetResetValue(&TimerInstancePtr, 0, 0x0F000000);
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//Step-6 :Setting timer Option (Interrupt Mode And Auto Reload )
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
XTmrCtr_SetOptions(&TimerInstancePtr, XPAR_AXI_TIMER_0_DEVICE_ID, (XTC_INT_MODE_OPTION | XTC_AUTO_RELOAD_OPTION | XTC_DOWN_COUNT_OPTION));
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//Step-7 :PS GPIO Intialization
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GpioConfigPtr = XGpioPs_LookupConfig(XPAR_PS7_GPIO_0_DEVICE_ID);
if(GpioConfigPtr == NULL)
print(" PS GPIO config lookup FAILED \n\r");
xStatus = XGpioPs_CfgInitialize(&psGpioInstancePtr, GpioConfigPtr, GpioConfigPtr->BaseAddr);
if(XST_SUCCESS != xStatus)
print(" PS GPIO INIT FAILED \n\r");
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//Step-8 :PS GPIO pin setting to Output
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
XGpioPs_SetDirectionPin(&psGpioInstancePtr, 54, uPinDirection);
XGpioPs_SetOutputEnablePin(&psGpioInstancePtr, 54,1);
// XGpioPs_SetDirectionPin(&psGpioInstancePtr, 8,uPinDirection);
// XGpioPs_SetOutputEnablePin(&psGpioInstancePtr, 8, 1);
print(" INITED MIO \n\r");
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//Step-9 :EMIO PIN Setting to Input port
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
XGpioPs_SetDirectionPin(&psGpioInstancePtr, iPinNumberEMIO, uPinDirectionEMIO);
XGpioPs_SetOutputEnablePin(&psGpioInstancePtr, iPinNumberEMIO, 0);
//XGpioPs_IntrEnable(&psGpioInstancePtr, XGPIOPS_BANK2, 0x1);
// instance, bank, edge, rising, single edge
XGpioPs_IntrEnablePin(&psGpioInstancePtr, iPinNumberEMIO);
XGpioPs_SetIntrType(&psGpioInstancePtr, XGPIOPS_BANK2, 1, 1, 0);
XGpioPs_SetCallbackHandler(&psGpioInstancePtr, (void *) &psGpioInstancePtr, EMIO_Button_InterruptHandler);
print(" INITED FIRST EMIO \n\r");
// EMIO output
XGpioPs_SetDirectionPin(&psGpioInstancePtr, 55, uPinDirection);
XGpioPs_SetOutputEnablePin(&psGpioInstancePtr, 55, 1);
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//Step-10 : SCUGIC interrupt controller Initialization
//Registration of the Timer ISR
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
u32 Status = XScuGic_Connect(InterruptController,
XPAR_FABRIC_AXI_TIMER_0_INTERRUPT_INTR,
(Xil_ExceptionHandler)XTmrCtr_InterruptHandler,
(void *)&TimerInstancePtr);
if (Status != XST_SUCCESS) {
print(" Error connection timer interrupt \n \r");
}
Status = XScuGic_Connect(InterruptController,
XPAR_FABRIC_AXI_GPIO_0_IP2INTC_IRPT_INTR,
(Xil_ExceptionHandler)Button_InterruptHandler,
(void *)&GPIOInstance_Ptr);
if (Status != XST_SUCCESS) {
print(" Error connection button interrupt \n \r");
}
/*
* Connect the device driver handler that will be called when an
* interrupt for the device occurs, the handler defined above performs
* the specific interrupt processing for the device.
*/
Status = XScuGic_Connect(InterruptController,
XPS_GPIO_INT_ID,
(Xil_ExceptionHandler)XGpioPs_IntrHandler,
(void *)&psGpioInstancePtr);
if (Status != XST_SUCCESS) {
print(" Error connection button EMIO interrupt \n \r");
}
/*
* Enable the interrupt for the device and then cause (simulate) an
* interrupt so the handlers will be called
*/
XScuGic_Enable(InterruptController, XPAR_FABRIC_AXI_GPIO_0_IP2INTC_IRPT_INTR);
XScuGic_Enable(InterruptController, XPS_GPIO_INT_ID);
XScuGic_Enable(InterruptController, XPAR_FABRIC_AXI_TIMER_0_INTERRUPT_INTR);
// turn off all LEDs
XGpioPs_WritePin(&psGpioInstancePtr, iPinNumber, 0);
XGpioPs_WritePin(&psGpioInstancePtr, 55, 0);
print(" End of init \n\r");
}
/**
* This function sets up the interrupt system for the example. The processing
* contained in this funtion assumes the hardware system was built with
* and interrupt controller.
*
* @param None.
*
* @return A status indicating XST_SUCCESS or a value that is contained in
* xstatus.h.
*
* @note None.
*
*****************************************************************************/
int SetupInterruptSystem()
{
int Result;
INTC *IntcInstancePtr = &Intc;
#ifdef XPAR_INTC_0_DEVICE_ID
/*
* Initialize the interrupt controller driver so that it's ready to use.
* specify the device ID that was generated in xparameters.h
*/
Result = XIntc_Initialize(IntcInstancePtr, INTC_DEVICE_ID);
if (Result != XST_SUCCESS) {
return Result;
}
/* Hook up interrupt service routine */
XIntc_Connect(IntcInstancePtr, INTC_GPIO_INTERRUPT_ID,
(Xil_ExceptionHandler)GpioIsr, &Gpio);
/* Enable the interrupt vector at the interrupt controller */
XIntc_Enable(IntcInstancePtr, INTC_GPIO_INTERRUPT_ID);
/*
* Start the interrupt controller such that interrupts are recognized
* and handled by the processor
*/
Result = XIntc_Start(IntcInstancePtr, XIN_REAL_MODE);
if (Result != XST_SUCCESS) {
return Result;
}
#else
XScuGic_Config *IntcConfig;
/*
* Initialize the interrupt controller driver so that it is ready to
* use.
*/
IntcConfig = XScuGic_LookupConfig(INTC_DEVICE_ID);
if (NULL == IntcConfig) {
return XST_FAILURE;
}
Result = XScuGic_CfgInitialize(IntcInstancePtr, IntcConfig,
IntcConfig->CpuBaseAddress);
if (Result != XST_SUCCESS) {
return XST_FAILURE;
}
XScuGic_SetPriorityTriggerType(IntcInstancePtr, INTC_GPIO_INTERRUPT_ID,
0xA0, 0x3);
/*
* Connect the interrupt handler that will be called when an
* interrupt occurs for the device.
*/
Result = XScuGic_Connect(IntcInstancePtr, INTC_GPIO_INTERRUPT_ID,
(Xil_ExceptionHandler)GpioIsr, &Gpio);
if (Result != XST_SUCCESS) {
return Result;
}
/*
* Enable the interrupt for the GPIO device.
*/
XScuGic_Enable(IntcInstancePtr, INTC_GPIO_INTERRUPT_ID);
#endif
/*
* Enable the GPIO channel interrupts so that push button can be
* detected and enable interrupts for the GPIO device
*/
XGpio_InterruptEnable(&Gpio, BUTTON_INTERRUPT);
XGpio_InterruptGlobalEnable(&Gpio);
/*
* Initialize the exception table and register the interrupt
* controller handler with the exception table
*/
Xil_ExceptionInit();
Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_INT,
(Xil_ExceptionHandler)INTC_HANDLER, IntcInstancePtr);
/* Enable non-critical exceptions */
Xil_ExceptionEnable();
return XST_SUCCESS;
}
