main.c
72 lines
| 1.6 KiB
| text/x-c
|
CLexer
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r197 | #include <stdio.h> | ||
#include "grspw.h" | ||||
#include "fsw_params.h" | ||||
#define DSU_TIME_TAG_COUNTER 0x90000008 | ||||
//********** | ||||
// IRQ LINES | ||||
#define IRQ_GRSPW 11 | ||||
#define IRQ_SPARC_GRSPW 0x1b // see sparcv8.pdf p.76 for interrupt levels | ||||
extern void *catch_interrupt(void func(), int irq); | ||||
int *lreg = (int *) 0x80000000; | ||||
#define ICLEAR 0x20c | ||||
#define IMASK 0x240 | ||||
#define IFORCE 0x208 | ||||
void enable_irq (int irq) | ||||
{ | ||||
lreg[ICLEAR/4] = (1 << irq); // clear any pending irq | ||||
lreg[IMASK/4] |= (1 << irq); // unmaks irq | ||||
} | ||||
void disable_irq (int irq) { lreg[IMASK/4] &= ~(1 << irq); } // mask irq | ||||
void force_irq (int irq) { lreg[IFORCE/4] = (1 << irq); } // force irq | ||||
/* NOTE: NEVER put printf() or other stdio routines in interrupt handlers, | ||||
they are not re-entrant. This (bad) example is just a demo */ | ||||
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r198 | volatile unsigned char processTimecode = 0; | ||
unsigned int counter = 0; | ||||
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r197 | |||
void irqhandler(int irq) | ||||
{ | ||||
processTimecode = 1; | ||||
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r198 | counter ++; | ||
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r197 | } | ||
int main( void ) | ||||
{ | ||||
unsigned int *grspwCtrlReg; | ||||
unsigned int k; | ||||
volatile unsigned int *reg; | ||||
float aux; | ||||
printf("hello world!\n"); | ||||
grspwCtrlReg = (unsigned int*) REGS_ADDR_GRSPW; | ||||
grspw_set_ie( 1, grspwCtrlReg ); | ||||
grspw_set_tq( 1, grspwCtrlReg ); | ||||
grspw_set_tr( 1, grspwCtrlReg ); | ||||
catch_interrupt(irqhandler, IRQ_GRSPW); | ||||
enable_irq( IRQ_GRSPW ); | ||||
force_irq( IRQ_GRSPW ); | ||||
reg = (volatile unsigned int *) DSU_TIME_TAG_COUNTER; | ||||
while(1) | ||||
{ | ||||
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r198 | // if (processTimecode == 1) | ||
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r197 | // { | ||
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r198 | // printf("timecode counter = %d\n", counter); | ||
// processTimecode = 0; | ||||
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r197 | // } | ||
} | ||||
return 0; | ||||
} | ||||