ossc/software/sys_controller/it6613/hdmitx_nios2.c

83 lines
1.6 KiB
C

#include <stdio.h>
#include <unistd.h>
#include "system.h"
#include "i2c_opencores.h"
#include "hdmitx.h"
#include "it6613.h"
inline alt_u32 read_it2(alt_u32 regaddr) {
I2C_start(I2CA_BASE, IT_BASE, 0);
I2C_write(I2CA_BASE, regaddr, 0);
I2C_start(I2CA_BASE, IT_BASE, 1);
return I2C_read(I2CA_BASE,1);
}
inline void write_it2(alt_u32 regaddr, alt_u8 data) {
I2C_start(I2CA_BASE, IT_BASE, 0);
I2C_write(I2CA_BASE, regaddr, 0);
I2C_write(I2CA_BASE, data, 1);
}
BYTE I2C_Read_Byte(BYTE Addr,BYTE RegAddr) {
I2C_start(I2CA_BASE, Addr, 0);
I2C_write(I2CA_BASE, RegAddr, 0);
I2C_start(I2CA_BASE, Addr, 1);
return I2C_read(I2CA_BASE,1);
}
SYS_STATUS I2C_Write_Byte(BYTE Addr,BYTE RegAddr,BYTE Data) {
I2C_start(I2CA_BASE, Addr, 0);
I2C_write(I2CA_BASE, RegAddr, 0);
I2C_write(I2CA_BASE, Data, 1);
return 0;
}
SYS_STATUS I2C_Read_ByteN(BYTE Addr,BYTE RegAddr,BYTE *pData,int N) {
int i;
for (i=0; i<N; i++)
pData[i] = I2C_Read_Byte(Addr, RegAddr+i);
return 0;
}
SYS_STATUS I2C_Write_ByteN(BYTE Addr,BYTE RegAddr,BYTE *pData,int N) {
int i;
for (i=0; i<N; i++)
I2C_Write_Byte(Addr, RegAddr+i, pData[i]);
return 0;
}
BYTE HDMITX_ReadI2C_Byte(BYTE RegAddr) {
return read_it2(RegAddr);
}
SYS_STATUS HDMITX_WriteI2C_Byte(BYTE RegAddr,BYTE val) {
write_it2(RegAddr, val);
return 0;
}
SYS_STATUS HDMITX_ReadI2C_ByteN(BYTE RegAddr,BYTE *pData,int N) {
int i;
for (i=0; i<N; i++)
pData[i] = HDMITX_ReadI2C_Byte(RegAddr+i);
return 0;
}
SYS_STATUS HDMITX_WriteI2C_ByteN(BYTE RegAddr,BYTE *pData,int N) {
int i;
for (i=0; i<N; i++)
HDMITX_WriteI2C_Byte(RegAddr+i, pData[i]);
return 0;
}
void DelayMS(unsigned int ms) {
usleep(1000*ms);
}