69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
#include "stx7105.h"
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#define __WEAK __attribute__((weak))
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#define __IRQ __attribute__((interrupt_handler))
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#define __WEAK_IRQ __attribute__((weak, interrupt_handler))
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typedef enum {
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EXP_TYPE_TRAP = 0x160,
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} expevt_type_t;
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typedef enum {
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INT_TYPE_TMU_TNUI0 = 0x400,
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INT_TYPE_TMU_TNUI1 = 0x420,
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INT_TYPE_TMU_TNUI2 = 0x440,
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INT_TYPE_TMU_TICPI2 = 0x460,
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} intevt_type_t;
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typedef enum {
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TRA_TYPE_SYSCALL = 34,
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} tra_type_t;
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__WEAK int tuni0_handler(void) {
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/* Does nothing */
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return 0;
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}
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__WEAK int syscall_handler(uint32_t p1, uint32_t p2, uint32_t p3, uint32_t p4) {
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return 0;
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}
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__WEAK int trap_handler(uint32_t p1, uint32_t p2, uint32_t p3, uint32_t p4) {
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tra_type_t tra = CSR->TRA;
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switch (tra) {
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case TRA_TYPE_SYSCALL:
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return syscall_handler(p1, p2, p3, p4);
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break;
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default:
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break;
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}
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return 0;
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}
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__WEAK_IRQ int general_exc_handler(uint32_t p1, uint32_t p2, uint32_t p3, uint32_t p4) {
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expevt_type_t expevt = CSR->EXPEVT;
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switch (expevt) {
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case EXP_TYPE_TRAP:
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return trap_handler(p1, p2, p3, p4);
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break;
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default:
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break;
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}
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return 0;
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}
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__WEAK_IRQ int general_int_handler(void) {
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intevt_type_t intevt = CSR->INTEVT;
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switch (intevt) {
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case INT_TYPE_TMU_TNUI0:
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return tuni0_handler();
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break;
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default:
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break;
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}
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return 0;
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} |