diff options
Diffstat (limited to 'src/tuner_fc0012.c')
| -rw-r--r-- | src/tuner_fc0012.c | 50 |
1 files changed, 22 insertions, 28 deletions
diff --git a/src/tuner_fc0012.c b/src/tuner_fc0012.c index 4ad2045..768cf1c 100644 --- a/src/tuner_fc0012.c +++ b/src/tuner_fc0012.c @@ -206,37 +206,31 @@ int fc0012_set_params(void *dev, uint32_t freq, uint32_t bandwidth) vco_select = 1; } - if (freq >= 45000000) { - /* From divided value (XDIV) determined the FA and FP value */ - xdiv = (uint16_t)(f_vco / xtal_freq_div_2); - if ((f_vco - xdiv * xtal_freq_div_2) >= (xtal_freq_div_2 / 2)) - xdiv++; - - pm = (uint8_t)(xdiv / 8); - am = (uint8_t)(xdiv - (8 * pm)); - - if (am < 2) { - am += 8; - pm--; - } + /* From divided value (XDIV) determined the FA and FP value */ + xdiv = (uint16_t)(f_vco / xtal_freq_div_2); + if ((f_vco - xdiv * xtal_freq_div_2) >= (xtal_freq_div_2 / 2)) + xdiv++; - if (pm > 31) { - reg[1] = am + (8 * (pm - 31)); - reg[2] = 31; - } else { - reg[1] = am; - reg[2] = pm; - } + pm = (uint8_t)(xdiv / 8); + am = (uint8_t)(xdiv - (8 * pm)); - if (reg[1] > 15) { - fprintf(stderr, "[FC0012] no valid PLL combination " - "found for %u Hz!\n", freq); - return -1; - } + if (am < 2) { + am += 8; + pm--; + } + + if (pm > 31) { + reg[1] = am + (8 * (pm - 31)); + reg[2] = 31; } else { - /* fix for frequency less than 45 MHz */ - reg[1] = 0x06; - reg[2] = 0x11; + reg[1] = am; + reg[2] = pm; + } + + if ((reg[1] > 15) || (reg[2] < 0x0b)) { + fprintf(stderr, "[FC0012] no valid PLL combination " + "found for %u Hz!\n", freq); + return -1; } /* fix clock out */ |