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move generic mmio functions to header file

This commit is contained in:
Howard Mao 2017-05-29 14:33:30 -07:00
parent 062d443863
commit 44aa4e25a9
3 changed files with 18 additions and 12 deletions
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2
tests/Makefile
View File

@ -12,7 +12,7 @@ dumps: $(addsuffix .dump,$(PROGRAMS))
%.o: %.S
$(GCC) $(CFLAGS) -D__ASSEMBLY__=1 -c $< -o $@
%.o: %.c
%.o: %.c mmio.h
$(GCC) $(CFLAGS) -c $< -o $@
%.riscv: %.o crt.o syscalls.o

16
tests/mmio.h Normal file
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@ -0,0 +1,16 @@
#ifndef __MMIO_H__
#define __MMIO_H__
static inline void write_reg(unsigned long addr, unsigned int data)
{
volatile unsigned int *ptr = (volatile unsigned int *) addr;
*ptr = data;
}
static inline unsigned long read_reg(unsigned long addr)
{
volatile unsigned int *ptr = (volatile unsigned int *) addr;
return *ptr;
}
#endif

12
tests/pwm.c
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@ -2,17 +2,7 @@
#define PWM_DUTY 0x2004
#define PWM_ENABLE 0x2008
static inline void write_reg(unsigned long addr, unsigned int data)
{
volatile unsigned int *ptr = (volatile unsigned int *) addr;
*ptr = data;
}
static inline unsigned long read_reg(unsigned long addr)
{
volatile unsigned int *ptr = (volatile unsigned int *) addr;
return *ptr;
}
#include "mmio.h"
int main(void)
{