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grspw.c
70 lines | 1.0 KiB | text/x-c | CLexer
#include "grspw.h"
int grspw_set_ie( unsigned char value, unsigned int *ctrlReg )
{
// IE = bit 3
// Interrupt Enable
int ret = 0;
if (value == 0)
{
*ctrlReg = *ctrlReg & 0xfffffff7;
}
else if (value == 1)
{
*ctrlReg = *ctrlReg | 0x00000008;
}
else
{
ret = -1;
}
return ret;
}
int grspw_set_tq( unsigned char value, unsigned int *ctrlReg )
{
// TQ = bit 8
// Tick-out IRQ
int ret = 0;
if (value == 0)
{
*ctrlReg = *ctrlReg & 0xfffffeff;
}
else if (value == 1)
{
*ctrlReg = *ctrlReg | 0x00000100;
}
else
{
ret = -1;
}
return ret;
}
int grspw_set_tr( unsigned char value, unsigned int *ctrlReg )
{
// TR = bit 11
// Enable timecode reception
int ret = 0;
if (value == 0)
{
*ctrlReg = *ctrlReg & 0xfffff7ff;
}
else if (value == 1)
{
*ctrlReg = *ctrlReg | 0x00000800;
}
else
{
ret = -1;
}
return ret;
}