int gpio_i2c_readX_KeyPad_Fix(
int Grp,
unsigned char Dev,
void (*Func[2])(void))
{
int rxdata;
I2C_LOCK(Grp);
if(Func[0]) {
(*Func[0])();
}
i2c_start_bit(Grp);
i2c_send_byte(Grp, (unsigned char)(Dev) | 1);
i2c_receive_ack(Grp);
rxdata = i2c_receive_byte(Grp);
i2c_receive_ack(Grp);
i2c_stop_bit(Grp);
if(Func[1]) {
(*Func[1])();
}
I2C_UNLOCK(Grp);
return (unsigned char)rxdata;
}
int gpio_i2c_readX(int Grp, unsigned char devaddress, unsigned char address)
{
int rxdata;
I2C_LOCK(Grp);
i2c_start_bit(Grp);
i2c_send_byte(Grp, (unsigned char)(devaddress));
i2c_receive_ack(Grp);
i2c_send_byte(Grp, address);
i2c_receive_ack(Grp);
i2c_start_bit(Grp);
i2c_send_byte(Grp, (unsigned char)(devaddress) | 1);
i2c_receive_ack(Grp);
rxdata = i2c_receive_byte(Grp);
i2c_stop_bit(Grp);
I2C_UNLOCK(Grp);
return (unsigned char)rxdata;
}
int gpio_i2c_wr_arr(int Grp, unsigned char dev,
unsigned char rarr[], int rsize,
unsigned char darr[], int dsize)
{
int i;
I2C_LOCK(Grp);
i2c_start_bit(Grp);
i2c_send_byte(Grp, dev);
i2c_receive_ack(Grp);
for(i = 0; i < rsize; i ++) {
i2c_send_byte(Grp, rarr[i]);
i2c_receive_ack(Grp);
}
if(dsize > 0) {
for(i = 0; i < dsize-1; i ++) {
i2c_send_byte(Grp, darr[i]);
i2c_receive_ack(Grp);
}
i2c_send_byte(Grp, darr[i]);
}
i2c_stop_bit(Grp);
I2C_UNLOCK(Grp);
return 0;
}
void gpio_i2c_write(unsigned char devaddress, unsigned char address, unsigned char data)
{
i2c_start_bit();
i2c_send_byte((unsigned char)(devaddress));
i2c_receive_ack();
i2c_send_byte(address);
i2c_receive_ack();
i2c_send_byte(data);
// i2c_receive_ack();//add by hyping for tw2815
i2c_stop_bit();
}
int gpio_i2c_write(unsigned char devaddress, unsigned char address, unsigned char data)
{
int Grp = 0;
I2C_LOCK(Grp);
i2c_start_bit(Grp);
i2c_send_byte(Grp, (unsigned char)(devaddress));
i2c_receive_ack(Grp);
i2c_send_byte(Grp, address);
i2c_receive_ack(Grp);
i2c_send_byte(Grp, data);
i2c_stop_bit(Grp);
I2C_UNLOCK(Grp);
return 0 ;
}
int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop)
{
int ack = 0;
int sadr;
char *ptr;
char addr;
ptr = (char *)data;
switch ((int)obj->i2c) {
case I2C_0:
sadr = TSC_I2C_ADDR;
addr = address;
break;
case I2C_1:
sadr = AAIC_I2C_ADDR;
addr = address;
break;
case I2C_2:
case I2C_3:
sadr = address; //LM75_I2C_ADDR or MMA7660_I2C_ADDR;
addr = *ptr++;
break;
}
// printf("adr = %x, reg = %x\n",sadr, address);
i2c_start(obj);
// Set serial and register address
i2c_send_byte(obj, sadr);
ack += i2c_receive_ack(obj);
i2c_send_byte(obj, addr);
ack += i2c_receive_ack(obj);
for (int i = 1; i < length; i++) {
i2c_send_byte(obj, *ptr++);
ack += i2c_receive_ack(obj);
}
i2c_stop(obj);
if (ack == 3) {
return 1;
} else {
return 0;
}
}
unsigned char gpio_i2c_read(unsigned char devaddress, unsigned char address)
{
int rxdata;
i2c_start_bit();
i2c_send_byte((unsigned char)(devaddress));
i2c_receive_ack();
i2c_send_byte(address);
i2c_receive_ack();
i2c_start_bit();
i2c_send_byte((unsigned char)(devaddress) | 1);
i2c_receive_ack();
rxdata = i2c_receive_byte();
//i2c_send_ack();
i2c_stop_bit();
return rxdata;
}
/**
******************************************************************************
* @brief Read bytes from slave with specify register address
* @param Slave device address (7-bit right aligned)
* @param Register address
* @param Number of data bytes to read from slave
* @param Pointer to data array byte to store data from slave
* @retval Result status (SUCCESS or ERROR)
******************************************************************************
*/
uint8_t i2c_read_multi_with_reg(uint8_t address, uint8_t reg, uint8_t len, uint8_t* data)
{
i2c_start();
if (i2c_check_status(MT_START) == ERROR)
return ERROR;
i2c_transmit((address << 1) | I2C_WRITE);
if (i2c_check_status(MT_SLA_WRITE_ACK) == ERROR)
{
i2c_stop();
return ERROR;
}
i2c_transmit(reg);
if (i2c_check_status(MT_DATA_TRANSMITTED_ACK) == ERROR)
{
i2c_stop();
return ERROR;
}
i2c_start();
if (i2c_check_status(MT_REP_START) == ERROR)
return ERROR;
i2c_transmit((address << 1) | I2C_READ);
if (i2c_check_status(MT_SLA_READ_ACK) == ERROR)
{
i2c_stop();
return ERROR;
}
for (int i = 0; i < len; i++)
{
if (i == (len - 1))
{
data[i] = i2c_receive_nack();
if (i2c_check_status(MT_DATA_RECEIVED_NACK) == ERROR)
{
i2c_stop();
return ERROR;
}
}
else
{
data[i] = i2c_receive_ack();
if (i2c_check_status(MT_DATA_RECEIVED_ACK) == ERROR)
{
i2c_stop();
return ERROR;
}
}
}
i2c_stop();
return SUCCESS;
}
int gpio_i2c_writeX_KeyPad_Fix(
int Grp,
unsigned char Dev,
unsigned char rarr[], int rsize,
unsigned char darr[], int dsize,
void (*Func[2])(void))
{
int i;
I2C_LOCK(Grp);
if(Func[0]) {
(*Func[0])();
}
i2c_start_bit(Grp);
i2c_send_byte(Grp, Dev);
i2c_receive_ack(Grp);
for(i = 0; i < rsize; i ++) {
i2c_send_byte(Grp, rarr[i]);
i2c_receive_ack(Grp);
}
for(i = 0; i < dsize; i ++) {
i2c_send_byte(Grp, darr[i]);
i2c_receive_ack(Grp);
}
i2c_stop_bit(Grp);
if(Func[1]) {
(*Func[1])();
}
I2C_UNLOCK(Grp);
return 0;
}
int gpio_i2c_probeX(int Grp, unsigned char devaddress)
{
int ret;
I2C_LOCK(Grp);
i2c_start_bit(Grp);
i2c_send_byte(Grp, (unsigned char)(devaddress));
ret = i2c_receive_ack(Grp);
i2c_stop_bit(Grp);
I2C_UNLOCK(Grp);
return ret;
}
int i2c_read(i2c_t *obj, int address, char *data, int length, int stop)
{
unsigned int loop, rxdata;
int sadr, ack, bytes_read;
rxdata = 0;
switch ((int)obj->i2c) {
case I2C_0:
sadr = TSC_I2C_ADDR;
break;
case I2C_1:
sadr = AAIC_I2C_ADDR;
break;
case I2C_2:
case I2C_3:
sadr = address; //LM75_I2C_ADDR; or MMA7660_I2C_ADDR;
break;
}
bytes_read = 0;
// Start bit
i2c_start(obj);
switch ((int)obj->i2c) {
case I2C_0:
// Set serial and register address
i2c_send_byte(obj, sadr);
ack += i2c_receive_ack(obj);
i2c_send_byte(obj, address);
ack += i2c_receive_ack(obj);
// Stop bit
i2c_stop(obj);
// Start bit
i2c_start_tsc(obj);
// Read from I2C address
i2c_send_byte(obj, sadr | 1);
ack += i2c_receive_ack(obj);
rxdata = (i2c_receive_byte(obj) & 0xFF);
data[((length - 1) - bytes_read)] = (char)rxdata;
bytes_read++;
// Read multiple bytes
if ((length > 1) && (length < 5)) {
for (loop = 1; loop <= (length - 1); loop++) {
// Send ACK
i2c_send_ack(obj);
// Next byte
//rxdata = ((rxdata << 8) & 0xFFFFFF00);
//rxdata |= (i2c_receive_byte(obj) & 0xFF);
rxdata = i2c_receive_byte(obj);
data[(length - 1) - bytes_read] = (char)rxdata;
bytes_read++;
}
}
break;
case I2C_1:
// Set serial and register address
i2c_send_byte(obj, sadr);
ack += i2c_receive_ack(obj);
i2c_send_byte(obj, address);
ack += i2c_receive_ack(obj);
// Stop bit
i2c_stop(obj);
// Start bit
i2c_start_tsc(obj);
// Fall through to read data
case I2C_2:
case I2C_3:
// Read from preset register address pointer
i2c_send_byte(obj, sadr | 1);
ack += i2c_receive_ack(obj);
rxdata = i2c_receive_byte(obj);
data[bytes_read] = (char)rxdata;
bytes_read++;
// Read multiple bytes
if ((length > 1) && (length < 5)) {
for (loop = 1; loop <= (length - 1); loop++) {
// Send ACK
i2c_send_ack(obj);
// Next byte
rxdata = i2c_receive_byte(obj);
data[loop] = (char)rxdata;
bytes_read++;
}
}
break;
}
i2c_send_nack(obj);
i2c_stop(obj); // Actual stop bit
return bytes_read;
}
