/***********************************************************************
[function]:
callback: read a byte data from ctpm;
[parameters]:
buffer[in]: read buffer;
length[in]: the size of read data;
[return]:
FTS_TRUE: success;
FTS_FALSE: io fail;
************************************************************************/
static bool byte_read(u8* buffer, int length)
{
printk("[ELDIAU] ft5406_ts.c: byte_read\n");
return i2c_read_interface(buffer, length);
}
u8 hc_register_read(u8 e_reg_name, u8* pbt_buf, u8 bt_len)
{
#if 1
u8 read_cmd[3]= {0};
u8 cmd_len = 0;
read_cmd[0] = e_reg_name;
cmd_len = 1;
if(!i2c_write_interface(I2C_CTPM_ADDRESS, read_cmd, cmd_len)) {
return HC_FALSE;
}
/*call the read callback function to get the register value*/
if(!i2c_read_interface(I2C_CTPM_ADDRESS, pbt_buf, bt_len)) {
return HC_FALSE;
}
return HC_TRUE;
#else
u8 read_cmd[3] = {0};
u8 i = 0;
for(i=0; i<bt_len; i++) {
read_cmd[0] = e_reg_name + i;
if(!i2c_write_interface(I2C_CTPM_ADDRESS, read_cmd, 1)) {
return HC_FALSE;
}
/*call the read callback function to get the register value*/
if(!i2c_read_interface(I2C_CTPM_ADDRESS, pbt_buf+i, 1)) {
return HC_FALSE;
}
}
return HC_TRUE;
#endif
}
/***********************************************************************
[function]:
callback: read register value ftom ctpm by i2c interface;
[parameters]:
reg_name[in]: the register which you want to read;
rx_buf[in]: data buffer which is used to store register value;
rx_length[in]: the length of the data buffer;
[return]:
FTS_TRUE: success;
FTS_FALSE: fail;
************************************************************************/
static bool fts_register_read(u8 reg_name, u8* rx_buf, int rx_length)
{
u8 read_cmd[2]= {0};
u8 cmd_len = 0;
read_cmd[0] = reg_name;
cmd_len = 1;
/*send register addr*/
if(!i2c_write_interface(&read_cmd[0], cmd_len))
{
return false;
}
/*call the read callback function to get the register value*/
if(!i2c_read_interface(rx_buf, rx_length))
{
return false;
}
return true;
}
/***********************************************************************
[function]:
callback: read a byte data from ctpm;
[parameters]:
buffer[in]: read buffer;
length[in]: the size of read data;
[return]:
FTS_TRUE: success;
FTS_FALSE: io fail;
************************************************************************/
static bool byte_read(u8* buffer, int length)
{
return i2c_read_interface(buffer, length);
}
