void audiohw_set_frequency(int fsel)
{
int reg_val;
reg_val = tsc2100_readreg(CONTROL_PAGE2, TSAC1_ADDRESS);
reg_val &= ~(0x07<<3);
switch(fsel)
{
case HW_FREQ_8:
reg_val |= (0x06<<3);
break;
case HW_FREQ_11:
reg_val |= (0x04<<3);
break;
case HW_FREQ_22:
reg_val |= (0x02<<3);
break;
case HW_FREQ_44:
default:
break;
}
tsc2100_writereg(CONTROL_PAGE2, TSAC1_ADDRESS, reg_val);
}
void audiohw_init(void)
{
short val = tsc2100_readreg(TSAC4_PAGE, TSAC4_ADDRESS);
/* disable DAC PGA soft-stepping */
val |= TSAC4_DASTDP;
tsc2100_writereg(TSAC4_PAGE, TSAC4_ADDRESS, val);
}
static void audiohw_mute(bool mute)
{
short vol = tsc2100_readreg(TSDACGAIN_PAGE, TSDACGAIN_ADDRESS);
/* left mute bit == 1<<15
right mute bit == 1<<7
*/
if (mute)
{
vol |= (1<<15)|(1<<7);
} else
{
vol &= ~((1<<15)|(1<<7));
}
is_muted = mute;
tsc2100_writereg(TSDACGAIN_PAGE, TSDACGAIN_ADDRESS, vol);
}
void tsc2100_read_data(void)
{
int page = 0, address = 0;
unsigned int i;
unsigned short command = 0x8000|(page << 11)|(address << 5);
unsigned char out[] = {command >> 8, command & 0xff};
unsigned char *p_adc_data=(unsigned char *)&adc_data;
adc_status|=tsc2100_readreg(TSSTAT_PAGE, TSSTAT_ADDRESS);
spi_block_transfer(SPI_target_TSC2100,
out, sizeof(out), (char *)adc_data, sizeof(adc_data));
for(i=0; i<sizeof(adc_data); i+=2)
adc_data[i>>1]=(short)(p_adc_data[i]<<8|p_adc_data[i+1]);
}
void tsc2100_keyclick(void)
{
// 1100 0100 0001 0000
//short val = 0xC410;
tsc2100_writereg(TSAC2_PAGE, TSAC2_ADDRESS, tsc2100_readreg(TSAC2_PAGE, TSAC2_ADDRESS)&0x8000);
}
