gsm0502.c File Reference

Paging helper code. More...

#include <stdint.h>
#include <osmocom/gsm/protocol/gsm_04_08.h>
#include <osmocom/gsm/gsm0502.h>
#include <osmocom/gsm/gsm48.h>
#include <osmocom/gsm/rsl.h>
#include <osmocom/gsm/gsm_utils.h>
#include <osmocom/core/logging.h>
#include <inttypes.h>

Data Structures
struct	fn_remap_table

Macros
#define	TCH_REPEAT_LENGTH   13
#define	FACCH_F_REPEAT_LENGTH   13
#define	FACCH_H_REPEAT_LENGTH   26
#define	fn_remap_table_from_traffic_block_map(table, map, rows, cols, repeat)

Functions
unsigned int	gsm0502_calc_paging_group (struct gsm48_control_channel_descr *chan_desc, uint64_t imsi)
static	__attribute__ ((constructor))
uint32_t	gsm0502_fn_remap (uint32_t fn, enum gsm0502_fn_remap_channel channel)
	Calculate the frame number of the beginning of a block. More...

Variables
static const uint8_t	gsm0502_tch_f_traffic_block_map [3][8]
static const uint8_t	gsm0502_tch_h0_traffic_block_map [3][4]
static const uint8_t	gsm0502_tch_h1_traffic_block_map [3][4]
static const uint8_t	gsm0502_tch_f_facch_block_map [3][8]
static const uint8_t	gsm0502_tch_h0_facch_block_map [3][6]
static const uint8_t	gsm0502_tch_h1_facch_block_map [3][6]
static struct fn_remap_table	tch_f_remap_table
static struct fn_remap_table	tch_h0_remap_table
static struct fn_remap_table	tch_h1_remap_table
static struct fn_remap_table	facch_f_remap_table
static struct fn_remap_table	facch_h0_remap_table
static struct fn_remap_table	facch_h1_remap_table
static struct fn_remap_table *	fn_remap_table_ptr [FN_REMAP_MAX]

Detailed Description

Paging helper code.

Macro Definition Documentation

FACCH_F_REPEAT_LENGTH

#define FACCH_F_REPEAT_LENGTH   13

Referenced by __attribute__().

FACCH_H_REPEAT_LENGTH

#define FACCH_H_REPEAT_LENGTH   26

Referenced by __attribute__().

fn_remap_table_from_traffic_block_map

#define fn_remap_table_from_traffic_block_map	(		table,
			map,
			rows,
			cols,
			repeat
	)

Value:

for(i=0;i<rows;i++) { \
                table.blockend[i] = map[i][cols-1]; \
                if(map[i][0] <= map[i][cols-1]) \
                        table.distance[i] = map[i][cols-1] - map[i][0]; \
                else \
                        table.distance[i] = repeat - map[i][0] + map[i][cols-1]; \
        } \
        table.cycle = repeat; \
        table.len = rows;

Referenced by __attribute__().

TCH_REPEAT_LENGTH

#define TCH_REPEAT_LENGTH   13

Referenced by __attribute__().

Function Documentation

__attribute__()

static __attribute__ ( (constructor)  )

static

References facch_f_remap_table, FACCH_F_REPEAT_LENGTH, facch_h0_remap_table, facch_h1_remap_table, FACCH_H_REPEAT_LENGTH, FN_REMAP_FACCH_F, FN_REMAP_FACCH_H0, FN_REMAP_FACCH_H1, fn_remap_table_from_traffic_block_map, FN_REMAP_TCH_F, FN_REMAP_TCH_H0, FN_REMAP_TCH_H1, gsm0502_tch_f_facch_block_map, gsm0502_tch_f_traffic_block_map, gsm0502_tch_h0_facch_block_map, gsm0502_tch_h0_traffic_block_map, gsm0502_tch_h1_facch_block_map, gsm0502_tch_h1_traffic_block_map, tch_f_remap_table, tch_h0_remap_table, tch_h1_remap_table, and TCH_REPEAT_LENGTH.

gsm0502_calc_paging_group()

unsigned int gsm0502_calc_paging_group	(	struct gsm48_control_channel_descr *	chan_desc,
		uint64_t	imsi
	)

References gsm0502_get_paging_group(), gsm48_number_of_paging_subchannels(), and rsl_ccch_conf_to_bs_cc_chans().

Referenced by gsm0502_get_paging_group().

gsm0502_fn_remap()

uint32_t gsm0502_fn_remap	(	uint32_t	fn,
		enum gsm0502_fn_remap_channel	channel
	)

Calculate the frame number of the beginning of a block.

Parameters

[in]	fn	frame number of the block ending.
[in]	channel	channel type (see also enum fn_remap_channel).

Returns

frame number of the beginning of the block or input frame number if remapping was not possible.

References ARRAY_SIZE, fn_remap_table::blockend, fn_remap_table::cycle, fn_remap_table::distance, DLGLOBAL, GSM_MAX_FN, fn_remap_table::len, LOGL_ERROR, LOGP, and OSMO_ASSERT.

Variable Documentation

facch_f_remap_table

struct fn_remap_table facch_f_remap_table

static

Referenced by __attribute__().

facch_h0_remap_table

struct fn_remap_table facch_h0_remap_table

static

Referenced by __attribute__().

facch_h1_remap_table

struct fn_remap_table facch_h1_remap_table

static

Referenced by __attribute__().

fn_remap_table_ptr

struct fn_remap_table* fn_remap_table_ptr[FN_REMAP_MAX]

static

gsm0502_tch_f_facch_block_map

const uint8_t gsm0502_tch_f_facch_block_map[3][8]

static

Initial value:

= {
        {0, 1, 2, 3, 4, 5, 6, 7},
        {4, 5, 6, 7, 8, 9, 10, 11},
        {8, 9, 10, 11, 0, 1, 2, 3}
}

Referenced by __attribute__().

gsm0502_tch_f_traffic_block_map

const uint8_t gsm0502_tch_f_traffic_block_map[3][8]

static

Initial value:

= {
        {0, 1, 2, 3, 4, 5, 6, 7},
        {4, 5, 6, 7, 8, 9, 10, 11},
        {8, 9, 10, 11, 0, 1, 2, 3}
}

Referenced by __attribute__().

gsm0502_tch_h0_facch_block_map

const uint8_t gsm0502_tch_h0_facch_block_map[3][6]

static

Initial value:

= {
        {0, 2, 4, 6, 8, 10},
        {8, 10, 13, 15, 17, 19},
        {17, 19, 21, 23, 0, 2}
}

Referenced by __attribute__().

gsm0502_tch_h0_traffic_block_map

const uint8_t gsm0502_tch_h0_traffic_block_map[3][4]

static

Initial value:

= {
        {0, 2, 4, 6},
        {4, 6, 8, 10},
        {8, 10, 0, 2}
}

Referenced by __attribute__().

gsm0502_tch_h1_facch_block_map

const uint8_t gsm0502_tch_h1_facch_block_map[3][6]

static

Initial value:

= {
        {1, 3, 5, 7, 9, 11},
        {9, 11, 14, 16, 18, 20},
        {18, 20, 22, 24, 1, 3}
}

Referenced by __attribute__().

gsm0502_tch_h1_traffic_block_map

const uint8_t gsm0502_tch_h1_traffic_block_map[3][4]

static

Initial value:

= {
        {1, 3, 5, 7},
        {5, 7, 9, 11},
        {9, 11, 1, 3}
}

Referenced by __attribute__().

tch_f_remap_table

struct fn_remap_table tch_f_remap_table

static

Referenced by __attribute__().

tch_h0_remap_table

struct fn_remap_table tch_h0_remap_table

static

Referenced by __attribute__().

tch_h1_remap_table

struct fn_remap_table tch_h1_remap_table

static

Referenced by __attribute__().