interrupt_utils.h File Reference

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Defines
#define	INTFUNC   __attribute__ ((interrupt("IRQ")))
#define	ISR_DISABLE_NEST()
#define	ISR_ENABLE_NEST()
#define	ISR_ENTRY()
#define	ISR_EXIT()
#define	ISR_RESTORE()
#define	ISR_STORE()
#define	NACKEDFUNC   __attribute__((naked))
#define	RAMFUNC   __attribute__ ((long_call, section (".fastrun")))
Functions
unsigned	disableFIQ (void)
unsigned	disableIRQ (void)
unsigned	enableFIQ (void)
unsigned	enableIRQ (void)
unsigned	restoreFIQ (unsigned oldCPSR)
unsigned	restoreIRQ (unsigned oldCPSR)

---

Define Documentation

#define INTFUNC   __attribute__ ((interrupt("IRQ")))

Definition at line 60 of file interrupt_utils.h.

#define ISR_DISABLE_NEST

(

)

Value:

asm volatile(  \
 "LDMFD   SP!, {LR} \n" \
 "MSR     CPSR_c, #0x92 \n" \
 "LDMFD   SP!, {LR} \n" \
 "MSR     SPSR_cxsf, LR \n" )

Definition at line 129 of file interrupt_utils.h.

#define ISR_ENABLE_NEST

(

)

Value:

asm volatile( \
 "MRS     LR, SPSR \n"  \
 "STMFD   SP!, {LR} \n" \
 "MSR     CPSR_c, #0x1F \n" \
 "STMFD   SP!, {LR} " )

Definition at line 114 of file interrupt_utils.h.

#define ISR_ENTRY

(

)

Value:

asm volatile(" sub   lr, lr,#4\n" \
                                 " stmfd sp!,{r0-r12,lr}\n" \
                                 " mrs   r1, spsr\n" \
                                 " stmfd sp!,{r1}")

Definition at line 164 of file interrupt_utils.h.

#define ISR_EXIT

(

)

Value:

asm volatile(" ldmfd sp!,{r1}\n" \
                                 " msr   spsr_c,r1\n" \
                                 " ldmfd sp!,{r0-r12,pc}^")

Definition at line 185 of file interrupt_utils.h.

#define ISR_RESTORE

(

)

Value:

asm volatile( \
 "LDMIA SP!,{R0-R12,LR}\n" \
 "SUBS  R15,R14,#0x0004\n" )

Definition at line 101 of file interrupt_utils.h.

#define ISR_STORE

(

)

Value:

asm volatile( \
 "STMDB SP!,{R0-R12,LR}\n" )

Definition at line 85 of file interrupt_utils.h.

#define NACKEDFUNC   __attribute__((naked))

Definition at line 70 of file interrupt_utils.h.

#define RAMFUNC   __attribute__ ((long_call, section (".fastrun")))

Definition at line 48 of file interrupt_utils.h.

---

Function Documentation

unsigned disableFIQ

(

void

)

Definition at line 59 of file interrupt_utils.c.

unsigned disableIRQ

(

void

)

Definition at line 32 of file interrupt_utils.c.

unsigned enableFIQ

(

void

)

Definition at line 77 of file interrupt_utils.c.

unsigned enableIRQ

(

void

)

Definition at line 50 of file interrupt_utils.c.

unsigned restoreFIQ

(

unsigned

oldCPSR

)

Definition at line 68 of file interrupt_utils.c.

unsigned restoreIRQ

(

unsigned

oldCPSR

)

Definition at line 41 of file interrupt_utils.c.