libosmogsm 1.10.0.10-24ad1
Osmocom GSM library
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#include <osmocom/gsm/protocol/gsm_04_08.h>
#include <osmocom/gsm/gsm48_arfcn_range_encode.h>
#include <osmocom/core/utils.h>
#include <errno.h>
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static int | greatest_power_of_2_lesser_or_equal_to (int index) |
static int | mod (int data, int range) |
int | osmo_gsm48_range_enc_find_index (enum osmo_gsm48_range range, const int *freqs, const int size) |
Determine at which index to split the ARFCNs to create an equally size partition for the given range. More... | |
static int | _range_enc_arfcns (enum osmo_gsm48_range range, const int *arfcns, int size, int *out, const int index) |
int | osmo_gsm48_range_enc_arfcns (enum osmo_gsm48_range range, const int *arfcns, int size, int *out, const int index) |
Range encode the ARFCN list. More... | |
int | osmo_gsm48_range_enc_determine_range (const int *arfcns, const int size, int *f0) |
This implements the range determination as described in GSM 04.08 J4. More... | |
static void | write_orig_arfcn (uint8_t *chan_list, int f0) |
static void | write_all_wn (uint8_t *chan_list, int bit_offs, int *w, int w_size, int w1_len) |
int | osmo_gsm48_range_enc_128 (uint8_t *chan_list, int f0, int *w) |
int | osmo_gsm48_range_enc_256 (uint8_t *chan_list, int f0, int *w) |
int | osmo_gsm48_range_enc_512 (uint8_t *chan_list, int f0, int *w) |
int | osmo_gsm48_range_enc_1024 (uint8_t *chan_list, int f0, int f0_included, int *w) |
int | osmo_gsm48_range_enc_filter_arfcns (int *arfcns, const int size, const int f0, int *f0_included) |
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References greatest_power_of_2_lesser_or_equal_to(), mod(), osmo_gsm48_range_enc_arfcns(), and osmo_gsm48_range_enc_find_index().
Referenced by osmo_gsm48_range_enc_arfcns().
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inlinestatic |
Referenced by _range_enc_arfcns().
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inlinestatic |
Referenced by _range_enc_arfcns(), osmo_gsm48_range_enc_filter_arfcns(), and osmo_gsm48_range_enc_find_index().
int osmo_gsm48_range_enc_1024 | ( | uint8_t * | chan_list, |
int | f0, | ||
int | f0_included, | ||
int * | w | ||
) |
References write_all_wn().
Referenced by range_encode().
int osmo_gsm48_range_enc_128 | ( | uint8_t * | chan_list, |
int | f0, | ||
int * | w | ||
) |
References write_all_wn(), and write_orig_arfcn().
Referenced by range_encode().
int osmo_gsm48_range_enc_256 | ( | uint8_t * | chan_list, |
int | f0, | ||
int * | w | ||
) |
References write_all_wn(), and write_orig_arfcn().
Referenced by range_encode().
int osmo_gsm48_range_enc_512 | ( | uint8_t * | chan_list, |
int | f0, | ||
int * | w | ||
) |
References write_all_wn(), and write_orig_arfcn().
Referenced by range_encode().
int osmo_gsm48_range_enc_arfcns | ( | enum osmo_gsm48_range | range, |
const int * | arfcns, | ||
int | size, | ||
int * | out, | ||
const int | index | ||
) |
Range encode the ARFCN list.
range | The range to use. |
arfcns | The list of ARFCNs |
size | The size of the list of ARFCNs |
out | Place to store the W(i) output. |
References _range_enc_arfcns().
Referenced by _range_enc_arfcns(), and range_encode().
int osmo_gsm48_range_enc_determine_range | ( | const int * | arfcns, |
const int | size, | ||
int * | f0 | ||
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This implements the range determination as described in GSM 04.08 J4.
The result will be a base frequency f0 and the range to use. Note that for range 1024 encoding f0 always refers to ARFCN 0 even if it is not an element of the arfcns list.
[in] | arfcns | The input frequencies, they must be sorted, lowest number first |
[in] | size | The length of the array |
[out] | f0 | The selected F0 base frequency. It might not be inside the list |
References OSMO_GSM48_ARFCN_RANGE_1024, OSMO_GSM48_ARFCN_RANGE_128, OSMO_GSM48_ARFCN_RANGE_256, OSMO_GSM48_ARFCN_RANGE_512, and OSMO_GSM48_ARFCN_RANGE_INVALID.
int osmo_gsm48_range_enc_filter_arfcns | ( | int * | arfcns, |
const int | size, | ||
const int | f0, | ||
int * | f0_included | ||
) |
References mod().
Referenced by range_encode().
int osmo_gsm48_range_enc_find_index | ( | enum osmo_gsm48_range | range, |
const int * | freqs, | ||
const int | size | ||
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Determine at which index to split the ARFCNs to create an equally size partition for the given range.
Return -1 if no such partition exists.
Referenced by _range_enc_arfcns().
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References level.
Referenced by osmo_gsm48_range_enc_1024(), osmo_gsm48_range_enc_128(), osmo_gsm48_range_enc_256(), and osmo_gsm48_range_enc_512().
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Referenced by osmo_gsm48_range_enc_128(), osmo_gsm48_range_enc_256(), and osmo_gsm48_range_enc_512().