mirror of https://github.com/PentHertz/srsLTE.git
158 lines
5.2 KiB
C
158 lines
5.2 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2012-2014 Ben Wojtowicz
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*
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* By using this file, you agree to the terms and conditions set
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* forth in the LICENSE file which can be found at the top level of
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* the distribution.
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*
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*/
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#ifndef SRSLTE_LIBLTE_COMMON_H
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#define SRSLTE_LIBLTE_COMMON_H
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/*******************************************************************************
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INCLUDES
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*******************************************************************************/
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#include <stddef.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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/*******************************************************************************
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DEFINES
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*******************************************************************************/
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// TODO: This was chosen arbitrarily
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#define LIBLTE_ASN1_OID_MAXSUBIDS 128
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// Caution these values must match SRSLTE_ ones in common.h
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#define LIBLTE_MAX_MSG_SIZE_BITS 102048
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#define LIBLTE_MAX_MSG_SIZE_BYTES 12237
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#define LIBLTE_MSG_HEADER_OFFSET 1020
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// Macro to make it easier to convert defines into strings
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#define LIBLTE_CASE_STR(code) \
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case code: \
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return #code
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/*******************************************************************************
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TYPEDEFS
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*******************************************************************************/
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typedef int8_t int8;
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typedef uint8_t uint8;
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typedef int16_t int16;
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typedef uint16_t uint16;
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typedef int32_t int32;
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typedef uint32_t uint32;
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typedef int64_t int64;
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typedef uint64_t uint64;
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typedef enum {
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LIBLTE_SUCCESS = 0,
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LIBLTE_ERROR_INVALID_INPUTS,
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LIBLTE_ERROR_ENCODE_FAIL,
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LIBLTE_ERROR_DECODE_FAIL,
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LIBLTE_ERROR_INVALID_CRC,
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LIBLTE_ERROR_N_ITEMS
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} LIBLTE_ERROR_ENUM;
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static const char liblte_error_text[LIBLTE_ERROR_N_ITEMS][64] = {
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"Invalid inputs",
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"Encode failure",
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"Decode failure",
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};
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#define LIBLTE_STRING_LEN 128
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typedef void* LIBLTE_ASN1_OPEN_TYPE_STRUCT;
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typedef struct {
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uint32_t numids; // number of subidentifiers
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uint32_t subid[LIBLTE_ASN1_OID_MAXSUBIDS]; // subidentifier values
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} LIBLTE_ASN1_OID_STRUCT;
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typedef struct {
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bool data_valid;
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bool data;
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} LIBLTE_BOOL_MSG_STRUCT;
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typedef struct {
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uint32 N_bits;
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uint8 header[LIBLTE_MSG_HEADER_OFFSET];
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uint8 msg[LIBLTE_MAX_MSG_SIZE_BITS];
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} LIBLTE_BIT_MSG_STRUCT __attribute__((aligned(8)));
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struct alignas(8) LIBLTE_BYTE_MSG_STRUCT
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{
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uint32 N_bytes;
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uint8 header[LIBLTE_MSG_HEADER_OFFSET];
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uint8 msg[LIBLTE_MAX_MSG_SIZE_BYTES];
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};
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/*******************************************************************************
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DECLARATIONS
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*******************************************************************************/
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/*********************************************************************
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Name: liblte_value_2_bits
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Description: Converts a value to a bit string
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*********************************************************************/
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void liblte_value_2_bits(uint32 value, uint8** bits, uint32 N_bits);
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/*********************************************************************
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Name: liblte_bits_2_value
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Description: Converts a bit string to a value
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*********************************************************************/
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uint32 liblte_bits_2_value(uint8** bits, uint32 N_bits);
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/*********************************************************************
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Name: liblte_pack
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Description: Pack a bit array into a byte array
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*********************************************************************/
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void liblte_pack(LIBLTE_BIT_MSG_STRUCT* bits, LIBLTE_BYTE_MSG_STRUCT* bytes);
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/*********************************************************************
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Name: liblte_unpack
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Description: Unpack a byte array into a bit array
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*********************************************************************/
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void liblte_unpack(LIBLTE_BYTE_MSG_STRUCT* bytes, LIBLTE_BIT_MSG_STRUCT* bits);
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/*********************************************************************
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Name: liblte_pack
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Description: Pack a bit array into a byte array
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*********************************************************************/
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void liblte_pack(uint8_t* bits, uint32_t n_bits, uint8_t* bytes);
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/*********************************************************************
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Name: liblte_unpack
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Description: Unpack a byte array into a bit array
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*********************************************************************/
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void liblte_unpack(uint8_t* bytes, uint32_t n_bytes, uint8_t* bits);
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/*********************************************************************
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Name: liblte_align_up
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Description: Aligns a pointer to a multibyte boundary
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*********************************************************************/
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void liblte_align_up(uint8_t** ptr, uint32_t align);
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/*********************************************************************
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Name: liblte_align_up_zero
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Description: Aligns a pointer to a multibyte boundary and zeros
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bytes skipped
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*********************************************************************/
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void liblte_align_up_zero(uint8_t** ptr, uint32_t align);
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#endif // SRSLTE_LIBLTE_COMMON_H
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