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Add the disable_int({}) macro

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This is similar to safe_irq_enable and disable
This commit is contained in:
Jim Paris 2010-09-28 17:32:47 -04:00 committed by Mariano Alvira
parent 62400bd07f
commit 76563958fe
1 changed files with 17 additions and 0 deletions
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17
lib/include/isr.h
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@ -130,6 +130,23 @@ enum interrupt_nums {
#endif /* REG_NO_COMPAT */
/* Macro to safely disable all interrupts for a block of code.
Use it like this:
disable_int({
asdf = 1234;
printf("hi\r\n");
});
*/
#define __int_top() volatile uint32_t saved_intenable
#define __int_disable() saved_intenable = ITC->INTENABLE; ITC->INTENABLE = 0
#define __int_enable() ITC->INTENABLE = saved_intenable
#define disable_int(x) do { \
__int_top(); \
__int_disable(); \
x; \
__int_enable(); } while(0)
extern void tmr0_isr(void) __attribute__((weak));
extern void tmr1_isr(void) __attribute__((weak));
extern void tmr2_isr(void) __attribute__((weak));