//Main jobs:
// 1.check for device-specified errors, device not ready.
// 2.Initialize the device if it is opened for the first time.
// 3.Update f_op pointer.
// 4.Fill data structures into private_data
//CAM_RESET
static int AF_Open(struct inode * a_pstInode, struct file * a_pstFile)
{
LOG_INF("Start \n");
if(g_s4AF_Opened)
{
LOG_INF("The device is opened \n");
return -EBUSY;
}
spin_lock(&g_AF_SpinLock);
g_s4AF_Opened = 1;
spin_unlock(&g_AF_SpinLock);
I2C_func_POFF_____( ); // reset the IC
I2C_func_PON______( ); // Power ON
func_INITIALIZE( ); // initialize the IC
func_ReLOAD_FACT_DATA( ); // ReLoad Adjustment Data
I2C_func_DSP_START( ); // CLAF Function Enable
EQ_CONTROL( 0x0004 );
LOG_INF("End \n");
return 0;
}
void init_drv(void)
{
I2C_func_POFF_____( ); // reset the IC
I2C_func_PON______( ); // Power ON
func_INITIALIZE( ); // initialize the IC
func_ReLOAD_FACT_DATA( ); // ReLoad Adjustment Data
I2C_func_DSP_START( ); // CLAF Function Enable
EQ_CONTROL( 0x0004 );
}
