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180 lines
6.6 KiB
C
180 lines
6.6 KiB
C
/*******************************************************************************
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Copyright 2012-2014 Ben Wojtowicz
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*******************************************************************************
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File: liblte_common.h
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Description: Contains all the common definitions for the LTE library.
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Revision History
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---------- ------------- --------------------------------------------
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02/26/2012 Ben Wojtowicz Created file.
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07/21/2013 Ben Wojtowicz Added a common message structure.
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06/15/2014 Ben Wojtowicz Split LIBLTE_MSG_STRUCT into bit and byte
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aligned messages.
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08/03/2014 Ben Wojtowicz Commonized value_2_bits and bits_2_value.
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11/29/2014 Ben Wojtowicz Added liblte prefix to value_2_bits and
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bits_2_value.
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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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// FIXME: 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 12756
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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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typedef struct {
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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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} LIBLTE_BYTE_MSG_STRUCT;
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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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