u_long
tea5757_set_freq(struct tea5757_t *tea, u_long stereo, u_long lock, u_long freq)
{
u_long data = 0ul;
if (freq < MIN_FM_FREQ)
freq = MIN_FM_FREQ;
if (freq > MAX_FM_FREQ)
freq = MAX_FM_FREQ;
data = tea5757_encode_freq(freq) | stereo | lock | TEA5757_SEARCH_END;
tea5757_hardware_write(tea, data);
return freq;
}
u_int32_t
tea5757_set_freq(struct tea5757_t *tea, u_int32_t stereo, u_int32_t lock, u_int32_t freq)
{
u_int32_t data = 0ul;
if (freq < MIN_FM_FREQ)
freq = MIN_FM_FREQ;
if (freq > MAX_FM_FREQ)
freq = MAX_FM_FREQ;
data |= tea5757_encode_freq(freq, tea->flags & TEA5757_TEA5759);
data |= stereo | lock | TEA5757_SEARCH_END;
tea5757_hardware_write(tea, data);
return freq;
}
/*
* Hardware search
*/
void
tea5757_search(struct tea5757_t *tea, u_int32_t stereo, u_int32_t lock, int dir)
{
u_int32_t reg;
u_int co = 0;
reg = stereo | lock | TEA5757_SEARCH_START;
reg |= dir ? TEA5757_SEARCH_UP : TEA5757_SEARCH_DOWN;
tea5757_hardware_write(tea, reg);
DELAY(TEA5757_ACQUISITION_DELAY);
do {
DELAY(TEA5757_WAIT_DELAY);
reg = tea->read(tea->iot, tea->ioh, tea->offset);
} while ((reg & TEA5757_FREQ) == 0 && ++co < 200);
}