diff options
Diffstat (limited to 'nuttx/arch/arm/src/common/up_arch.h')
| -rw-r--r-- | nuttx/arch/arm/src/common/up_arch.h | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/nuttx/arch/arm/src/common/up_arch.h b/nuttx/arch/arm/src/common/up_arch.h index 1ad0381ed..71a33bb3e 100644 --- a/nuttx/arch/arm/src/common/up_arch.h +++ b/nuttx/arch/arm/src/common/up_arch.h @@ -82,11 +82,28 @@ static inline void putreg16(uint16 val, unsigned int addr) __asm__ __volatile__("\tstrh %0, [%1]\n\t": : "r"(val), "r"(addr)); } -/* Most DM320 registers are 16-bits wide */ +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#undef EXTERN +#if defined(__cplusplus) +#define EXTERN extern "C" +extern "C" { +#else +#define EXTERN extern +#endif + +/* Atomic modification of registers */ -#define getreg(a) getreg16(a) -#define putreg(v,a) putreg16(v,a) +EXTERN void modifyreg8(unsigned int addr, ubyte clearbits, ubyte setbits); +EXTERN void modifyreg16(unsigned int addr, uint16 clearbits, uint16 setbits); +EXTERN void modifyreg32(unsigned int addr, uint32 clearbits, uint32 setbits); +#undef EXTERN +#if defined(__cplusplus) +} #endif +#endif /* __ASSEMBLY__ */ #endif /* ___ARCH_ARM_SRC_COMMON_UP_ARCH_H */ |