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intc.c
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intc.c
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/* Scheduler includes. */
#include "FreeRTOS.h"
#include "FreeRTOSConfig.h"
static void Unused_Dummy_Interrupt(unsigned int int_sense);
#define EB_MAX_INTS (64)
extern void GIC_Enable_int(int, int, int);
/* Based on EB Model - <http://infocenter.arm.com/help/topic/com.arm.doc.dui0424j/DUI0424J_eb_model_ug.pdf> */
static void (* intc_func_table[EB_MAX_INTS])(unsigned int int_sense) =
{
Unused_Dummy_Interrupt, /* 0 : SGI0 */
Unused_Dummy_Interrupt, /* 1 : SGI1 */
Unused_Dummy_Interrupt, /* 2 : SGI2 */
Unused_Dummy_Interrupt, /* 3 : SGI3 */
Unused_Dummy_Interrupt, /* 4 : SGI4 */
Unused_Dummy_Interrupt, /* 5 : SGI5 */
Unused_Dummy_Interrupt, /* 6 : SGI6 */
Unused_Dummy_Interrupt, /* 7 : SGI7 */
Unused_Dummy_Interrupt, /* 8 : SGI8 */
Unused_Dummy_Interrupt, /* 9 : SGI9 */
Unused_Dummy_Interrupt, /* 10 : SGI0 */
Unused_Dummy_Interrupt, /* 11 : SGI1 */
Unused_Dummy_Interrupt, /* 12 : SGI2 */
Unused_Dummy_Interrupt, /* 13 : SGI3 */
Unused_Dummy_Interrupt, /* 14 : SGI4 */
Unused_Dummy_Interrupt, /* 15 : SGI5 */
Unused_Dummy_Interrupt, /* 16 : <NA> */
Unused_Dummy_Interrupt, /* 17 : <NA> */
Unused_Dummy_Interrupt, /* 18 : <NA> */
Unused_Dummy_Interrupt, /* 19 : <NA> */
Unused_Dummy_Interrupt, /* 20 : <NA> */
Unused_Dummy_Interrupt, /* 21 : <NA> */
Unused_Dummy_Interrupt, /* 22 : <NA> */
Unused_Dummy_Interrupt, /* 23 : <NA> */
Unused_Dummy_Interrupt, /* 24 : <NA> */
Unused_Dummy_Interrupt, /* 25 : <NA> */
Unused_Dummy_Interrupt, /* 26 : <NA> */
Unused_Dummy_Interrupt, /* 27 : <NA> */
Unused_Dummy_Interrupt, /* 28 : <NA> */
Unused_Dummy_Interrupt, /* 29 : <NA> */
Unused_Dummy_Interrupt, /* 30 : <NA> */
Unused_Dummy_Interrupt, /* 31 : <NA> */
Unused_Dummy_Interrupt, /* 32 : SP805 */
Unused_Dummy_Interrupt, /* 33 : <NA> */
Unused_Dummy_Interrupt, /* 34 : <NA> */
Unused_Dummy_Interrupt, /* 35 : <NA> */
Unused_Dummy_Interrupt, /* 36 : SP804-1 */
Unused_Dummy_Interrupt, /* 37 : SP804-2 */
Unused_Dummy_Interrupt, /* 38 : GPIO0 */
Unused_Dummy_Interrupt, /* 39 : GPIO1 */
Unused_Dummy_Interrupt, /* 40 : GPIO2 */
Unused_Dummy_Interrupt, /* 41 : DOC */
Unused_Dummy_Interrupt, /* 42 : <NA> */
Unused_Dummy_Interrupt, /* 43 : SSPI */
Unused_Dummy_Interrupt, /* 44 : UART0 */
Unused_Dummy_Interrupt, /* 45 : UART1 */
Unused_Dummy_Interrupt, /* 46 : UART2 */
Unused_Dummy_Interrupt, /* 47 : UART3 */
Unused_Dummy_Interrupt, /* 48 : <NA> */
Unused_Dummy_Interrupt, /* 49 : MCI */
Unused_Dummy_Interrupt, /* 50 : MCI */
Unused_Dummy_Interrupt, /* 51 : AACI */
Unused_Dummy_Interrupt, /* 52 : PL0500 */
Unused_Dummy_Interrupt, /* 53 : PL0501 */
Unused_Dummy_Interrupt, /* 54 : DMAINT13 */
Unused_Dummy_Interrupt, /* 55 : CHAR-LCD */
Unused_Dummy_Interrupt, /* 56 : DMAINT15 */
Unused_Dummy_Interrupt, /* 57 : DMAERR */
Unused_Dummy_Interrupt, /* 58 : PSMO */
Unused_Dummy_Interrupt, /* 59 : <NA> */
Unused_Dummy_Interrupt, /* 60 : ETH */
Unused_Dummy_Interrupt, /* 61 : <NA> */
Unused_Dummy_Interrupt, /* 62 : SMARTCARD */
Unused_Dummy_Interrupt, /* 63 : <NA> */
};
void INTC_RegistIntFunc(unsigned short int_id, void (* func)(unsigned int int_sense), int prio)
{
if(int_id >= 16 && int_id < EB_MAX_INTS)
{
intc_func_table[int_id] = func;
GIC_Enable_int(int_id, prio, 1);
}
else {
configASSERT(1);
}
}
void UserDef_UndefId(unsigned short int_id)
{
while (1)
{
/* Do Nothing */
}
}
static void Unused_Dummy_Interrupt(unsigned int int_sense)
{
/* Do Nothing */
}
void UserFIQ_HandlerExe(void)
{
}
/* The function called by the RTOS port layer after it has managed interrupt
entry. */
void vApplicationIRQHandler( unsigned int ulICCIAR )
{
unsigned int ulInterruptID;
/* Re-enable interrupts. */
__enable_irq();
/* The ID of the interrupt can be obtained by bitwise anding the ICCIAR value
with 0x3FF. */
ulInterruptID = ulICCIAR & 0x3FFUL;
/* Call the function installed in the array of installed handler functions. */
intc_func_table[ ulInterruptID ]( 0 );
}
/* END of File */