unsigned char * i2c_read(u8 *val, u32 n, u16 addr) {
if (!i2c_free())
return NULL;
i2c_start();
i2c_sendbyte(ST24C512_ADDR & 0xfe);
i2c_waitack();
i2c_sendbyte(addr >> 8);
i2c_waitack();
i2c_sendbyte(addr & 0xff);
i2c_waitack();
i2c_start();
i2c_sendbyte(ST24C512_ADDR | 1);
i2c_waitack();
n--;
while (n--) {
*val = i2c_recvbyte();
i2c_sendack();
val++;
}
*val = i2c_recvbyte();
i2c_sendnack();
i2c_stop();
return val;
}
bool i2c_write(u8 *val, u32 n, u16 addr) {
if (!i2c_free())
return FALSE;
i2c_start();
i2c_sendbyte(ST24C512_ADDR & 0xfe);
i2c_waitack();
i2c_sendbyte(addr >> 8);
i2c_waitack();
i2c_sendbyte(addr & 0xff);
i2c_waitack();
while (n--) {
i2c_sendbyte(*val);
i2c_waitack();
val++;
}
i2c_stop();
return TRUE;
}
i2c_ack i2c_write_2byte(int bus_id, char chip_addr, char *buf, unsigned int size)
{
#ifdef FLY_VIDEO_BOARD_V3
int ret_send = 0;
ret_send = SOC_I2C_Send(3, chip_addr, buf, size);
//lidbg("\n*************i2c_write_2byt ret_send=%d**************\n",ret_send);
if(ret_send > 0)
{
return ACK;
}
else
{
return NACK;
}
#else
u8 i;
mutex_lock(&io_i2c_lock);
i2c_init();
// start transmite
i2c_begin();//msg 0>>
i2c_write_chip_addr(chip_addr, hkj_WRITE) ;
if (i2c_read_ack() == NACK)
{
i2c_stop();
i2c_free();
lidbg(" chip_addr devices is not ACK--in-i2c_write_chip_addr(%.2x)----w-----\r\n", chip_addr);
mutex_unlock(&io_i2c_lock);
return NACK;
}
// send message to mm_i2c device to transmite data
i2c_write(buf[0]) ;//subaddr MSB
if (i2c_read_ack () == NACK)
{
i2c_stop();
i2c_free();
lidbg(" chip_addr devices is not ACK--in-i2c_write(sub[%d])=%.2x-----w----\r\n", 0, buf[0]);
mutex_unlock(&io_i2c_lock);
return NACK;
}
i2c_write(buf[1]) ;//subaddr
if (i2c_read_ack () == NACK)
{
i2c_stop();
i2c_free();
lidbg("chip_addr devices is not ACK--in-i2c_write(sub[%d])=%.2x--w", 1, buf[1]);
mutex_unlock(&io_i2c_lock);
return NACK;
}
// transmite data
for(i = 2; i < size; i++)
{
i2c_write(buf[i]);
if( i2c_read_ack() == NACK)
{
i2c_stop();
i2c_free();
lidbg(" chip_addr devices is not ACK--in-i2c_write(buf[%d])=%.2x--w----\r\n", (i - 2), buf[i]);
mutex_unlock(&io_i2c_lock);
return NACK;
}
}
// stop transmite
i2c_stop();//msg 0<<
i2c_free();
mutex_unlock(&io_i2c_lock);
return ACK;
#endif
}
i2c_ack i2c_read_2byte(int bus_id, char chip_addr, unsigned int sub_addr, char *buf, unsigned int size)
{
#ifdef FLY_VIDEO_BOARD_V3
int ret_rec = 0;
ret_rec = SOC_I2C_Rec_2B_SubAddr(3, TC358746_I2C_ChipAdd, sub_addr, buf, size);
//lidbg("\n************i2c_read_2byte ret_rec=%d *****************\n",ret_rec);
if(ret_rec > 0)
{
return ACK;
}
else
{
return NACK;
}
#else
u8 i;
mutex_lock(&io_i2c_lock);
i2c_init();
// start transmite
i2c_begin();//msg 0>>
i2c_write_chip_addr(chip_addr, hkj_WRITE) ;
if (i2c_read_ack () == NACK)
{
i2c_stop();
i2c_free();
lidbg(" chip_addr devices is not ACK------i2c_write_chip_addr----r--\r\n");
mutex_unlock(&io_i2c_lock);
return NACK;
}
//i2c_stop();
// restart transmite
// send message to mm_i2c device to transmite data
i2c_write(sub_addr >> 8) ;
if (i2c_read_ack () == NACK)
{
i2c_stop();
i2c_free();
lidbg(" chip_addr devices is not ACK-----subadder1-------\r\n");
mutex_unlock(&io_i2c_lock);
return NACK;
}
i2c_write(sub_addr) ;
if (i2c_read_ack () == NACK)
{
i2c_stop();
i2c_free();
lidbg(" chip_addr devices is not ACK------subadder0------\r\n");
mutex_unlock(&io_i2c_lock);
return NACK;
}
i2c_stop();//msg 0<<
// start transmite
i2c_begin();//msg 1>>
i2c_write_chip_addr(chip_addr, hkj_READ) ;
if (i2c_read_ack () == NACK)
{
i2c_stop();
i2c_free();
lidbg(" chip_addr devices is not ACK----- i2c_write_chip_addr-------\r\n");
mutex_unlock(&io_i2c_lock);
return NACK;
}
// transmite data
for(i = 0; i < size; i++)
{
buf[i] = i2c_read();
( i == (size - 1) ) ? i2c_write_ask(NACK) : i2c_write_ask(ACK);
}
// stop transmite
i2c_stop();//msg 1<<
i2c_free();
mutex_unlock(&io_i2c_lock);
return ACK;
#endif
}
i2c_ack i2c_write_byte(int bus_id, char chip_addr, char *buf, unsigned int size)
{
#ifdef FLY_VIDEO_BOARD_V3
int ret_send = 0;
ret_send = SOC_I2C_Send(3, chip_addr, buf, size);
// lidbg("\n************i2c_write_byte =%d*******\n",ret_send);
if(ret_send > 0)
{
#ifdef DEBUG_ACK
return NACK;
#else
return ACK;
#endif
}
else
{
return NACK;
}
#else
u8 i;
mutex_lock(&io_i2c_lock);
//lidbg("i2c:write byte:addr =0x%.2x value=0x%.2x ",buf[0],buf[1]);
i2c_init();
// start transmite
i2c_begin();
i2c_write_chip_addr(chip_addr, hkj_WRITE) ;
if (i2c_read_ack() == NACK)
{
i2c_stop();
i2c_free();
lidbg(" at write funtion: i2c_write_chip_addr(%.2x, %d) ; is not ACK\n", chip_addr, hkj_WRITE);
mutex_unlock(&io_i2c_lock);
return NACK;
}
//i2c_stop();
// restart transmite
//i2c_begin();
// send message to mm_i2c device to transmite data
i2c_write(buf[0]) ;
if (i2c_read_ack() == NACK)
{
i2c_stop();
i2c_free();
lidbg(" at write funtion:i2c_write(%.2x) ;is not ACK\n", buf[0]);
mutex_unlock(&io_i2c_lock);
return NACK;
}
// transmite data
for(i = 1; i < size; i++)
{
i2c_write(buf[i]);
if( i2c_read_ack() == NACK)
{
i2c_stop();
i2c_free();
lidbg(" at write funtion:i2c_write(%.2x) ;is not ACK\n", buf[i]);
mutex_unlock(&io_i2c_lock);
return NACK;
}
}
// stop transmite
i2c_stop();
i2c_free();
mutex_unlock(&io_i2c_lock);
return ACK;
#endif
}
i2c_ack i2c_read_byte(int bus_id, char chip_addr, unsigned int sub_addr, char *buf, unsigned int size)
{
#ifdef FLY_VIDEO_BOARD_V3
int ret = 0;
//ret=i2c_api_do_recv(3,chip_addr, sub_addr , buf, size);
ret = SOC_I2C_Rec(3, chip_addr, sub_addr , buf, size);
//lidbg("\n************ i2c_read_byte =%d*******\n",ret);
//if(ret==size){
if(ret > 0)
{
#ifdef DEBUG_ACK
return NACK;
#else
return ACK;
#endif
}
else
{
return NACK;
}
#else
u8 i;
mutex_lock(&io_i2c_lock);
i2c_init();
// start transmite
i2c_begin();
i2c_write_chip_addr(chip_addr, hkj_WRITE) ;
if (i2c_read_ack () == NACK)
{
i2c_stop();
i2c_free();
lidbg("at read funtion :i2c_write_chip_addr(%.2x, %d) ; is not ACK\n", chip_addr, hkj_WRITE);
mutex_unlock(&io_i2c_lock);
return NACK;
}
//i2c_stop();
// restart transmite
//i2c_begin();
// send message to mm_i2c device to transmite data
i2c_write(sub_addr) ;
if (i2c_read_ack () == NACK)
{
i2c_stop();
i2c_free();
lidbg("at read funtion :i2c_write (%.2x) is not ACK\n", sub_addr & 0xff);
mutex_unlock(&io_i2c_lock);
return NACK;
}
i2c_stop();
// start transmite
i2c_begin();
i2c_write_chip_addr(chip_addr, hkj_READ) ;
if (i2c_read_ack() == NACK)
{
i2c_stop();
i2c_free();
lidbg("at read funtion :i2c_write_chip_addr(%.2x, %d) ; is not ACK\n", sub_addr, hkj_READ);
mutex_unlock(&io_i2c_lock);
return NACK;
}
// transmite data
for(i = 0; i < size; i++)
{
buf[i] = i2c_read();
( i == (size - 1) ) ? i2c_write_ask(NACK) : i2c_write_ask(ACK);
}
// stop transmite
i2c_stop();
i2c_free();
mutex_unlock(&io_i2c_lock);
return ACK;
#endif
}
