diff options
Diffstat (limited to 'firmware/src/tuner_e4k.c')
| -rw-r--r-- | firmware/src/tuner_e4k.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/firmware/src/tuner_e4k.c b/firmware/src/tuner_e4k.c index 7bd59dc..898fcf3 100644 --- a/firmware/src/tuner_e4k.c +++ b/firmware/src/tuner_e4k.c @@ -152,19 +152,20 @@ static const uint32_t rf_filt_center_l[] = { static int closest_arr_idx(const uint32_t *arr, unsigned int arr_size, uint32_t freq) { - unsigned int i; - uint32_t last_delta = 0xffffffff; + unsigned int i, bi; + uint32_t best_delta = 0xffffffff; - /* iterate over the array containing an ordered list of the center + /* iterate over the array containing a list of the center * frequencies, selecting the closest one */ for (i = 0; i < arr_size; i++) { uint32_t delta = unsigned_delta(freq, arr[i]); - if (last_delta < delta) - return i-1; - last_delta = delta; + if (delta < best_delta) { + best_delta = delta; + bi = i; + } } - return -ERANGE; + return bi; } /* return 4-bit index as to which RF filter to select */ |