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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:
maralvira 2010-11-07 14:26:24 +00:00
parent 83e6995af1
commit 65d3942c76
1 changed files with 18 additions and 1 deletions
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19
cpu/mc1322x/lib/include/isr.h
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@ -30,7 +30,7 @@
* This file is part of libmc1322x: see http://mc1322x.devl.org * This file is part of libmc1322x: see http://mc1322x.devl.org
* for details. * for details.
* *
* $Id: isr.h,v 1.4 2010/11/07 14:24:11 maralvira Exp $ * $Id: isr.h,v 1.5 2010/11/07 14:26:24 maralvira Exp $
*/ */
#ifndef ISR_H #ifndef ISR_H
@ -130,6 +130,23 @@ enum interrupt_nums {
#endif /* REG_NO_COMPAT */ #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 tmr0_isr(void) __attribute__((weak));
extern void tmr1_isr(void) __attribute__((weak)); extern void tmr1_isr(void) __attribute__((weak));
extern void tmr2_isr(void) __attribute__((weak)); extern void tmr2_isr(void) __attribute__((weak));