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Commit 4a523a39 authored by Sebastian Wagner's avatar Sebastian Wagner
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Arrays for CRC calculation are defined as constants.

parent 3fd24705
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Showing with 145 additions and 145 deletions
openair1/PHY/CODING/3gpplte_turbo_decoder_sse.c
View file @ 4a523a39
...@@ -2620,8 +2620,6 @@ int test_logmap8() ...@@ -2620,8 +2620,6 @@ int test_logmap8()
test[3] = 0x92; test[3] = 0x92;
test[4] = 0xfe; test[4] = 0xfe;
crcTableInit();
crc = crc24a(test, crc = crc24a(test,
40)>>8; 40)>>8;
......
openair1/PHY/CODING/TESTBENCH/pdcch_test.c
View file @ 4a523a39
...@@ -52,8 +52,6 @@ void lte_param_init(unsigned char N_tx, unsigned char N_rx) ...@@ -52,8 +52,6 @@ void lte_param_init(unsigned char N_tx, unsigned char N_rx)
randominit(0); randominit(0);
set_taus_seed(0); set_taus_seed(0);
crcTableInit();
lte_frame_parms = &(PHY_config->lte_frame_parms); //openair1/PHY/impl_defs_lte.h lte_frame_parms = &(PHY_config->lte_frame_parms); //openair1/PHY/impl_defs_lte.h
lte_ue_common_vars = &(PHY_vars->lte_ue_common_vars); lte_ue_common_vars = &(PHY_vars->lte_ue_common_vars);
lte_ue_dlsch_vars = &(PHY_vars->lte_ue_dlsch_vars); lte_ue_dlsch_vars = &(PHY_vars->lte_ue_dlsch_vars);
...@@ -249,7 +247,6 @@ int main(int argc, char *argv[]) ...@@ -249,7 +247,6 @@ int main(int argc, char *argv[])
randominit(0); randominit(0);
set_taus_seed(0); set_taus_seed(0);
crcTableInit();
ccodelte_init(); ccodelte_init();
ccodelte_init_inv(); ccodelte_init_inv();
......
openair1/PHY/CODING/TESTBENCH/viterbi_test.c
View file @ 4a523a39
...@@ -218,8 +218,6 @@ int main(int argc, char *argv[]) ...@@ -218,8 +218,6 @@ int main(int argc, char *argv[])
randominit(); randominit();
set_taus_seed(); set_taus_seed();
crcTableInit();
printf("EbN0, sigma, BER, FER\n"); printf("EbN0, sigma, BER, FER\n");
for (SNR=0; SNR<10; SNR++) { for (SNR=0; SNR<10; SNR++) {
......
openair1/PHY/CODING/coding_defs.h
View file @ 4a523a39
...@@ -29,8 +29,6 @@ ...@@ -29,8 +29,6 @@
#include <stdint.h> #include <stdint.h>
#include "PHY/defs_common.h"
#define CRC24_A 0 #define CRC24_A 0
#define CRC24_B 1 #define CRC24_B 1
#define CRC16 2 #define CRC16 2
...@@ -321,7 +319,7 @@ void ccodedab_init_inv(void); ...@@ -321,7 +319,7 @@ void ccodedab_init_inv(void);
/*!\fn void crcTableInit(void) /*!\fn void crcTableInit(void)
\brief This function initializes the different crc tables.*/ \brief This function initializes the different crc tables.*/
void crcTableInit (void); //void crcTableInit (void);
...@@ -331,7 +329,7 @@ based on 3GPP UMTS/LTE specifications. ...@@ -331,7 +329,7 @@ based on 3GPP UMTS/LTE specifications.
@param inPtr Pointer to input byte stream @param inPtr Pointer to input byte stream
@param bitlen length of inputs in bits @param bitlen length of inputs in bits
*/ */
uint32_t crc24a (uint8_t *inPtr, int32_t bitlen); uint32_t crc24a (uint8_t * inptr, uint32_t bitlen);
/*!\fn uint32_t crc24b(uint8_t *inPtr, int32_t bitlen) /*!\fn uint32_t crc24b(uint8_t *inPtr, int32_t bitlen)
\brief This computes a 24-bit crc ('b' variant for transport-block segments) \brief This computes a 24-bit crc ('b' variant for transport-block segments)
...@@ -339,26 +337,26 @@ based on 3GPP UMTS/LTE specifications. ...@@ -339,26 +337,26 @@ based on 3GPP UMTS/LTE specifications.
@param inPtr Pointer to input byte stream @param inPtr Pointer to input byte stream
@param bitlen length of inputs in bits @param bitlen length of inputs in bits
*/ */
uint32_t crc24b (uint8_t *inPtr, int32_t bitlen); uint32_t crc24b (uint8_t * inptr, uint32_t bitlen);
/*!\fn uint32_t crc16(uint8_t *inPtr, int32_t bitlen) /*!\fn uint32_t crc16(uint8_t *inPtr, int32_t bitlen)
\brief This computes a 16-bit crc based on 3GPP UMTS specifications. \brief This computes a 16-bit crc based on 3GPP UMTS specifications.
@param inPtr Pointer to input byte stream @param inPtr Pointer to input byte stream
@param bitlen length of inputs in bits*/ @param bitlen length of inputs in bits*/
uint32_t crc16 (uint8_t *inPtr, int32_t bitlen); uint32_t crc16 (uint8_t * inptr, uint32_t bitlen);
/*!\fn uint32_t crc12(uint8_t *inPtr, int32_t bitlen) /*!\fn uint32_t crc12(uint8_t *inPtr, int32_t bitlen)
\brief This computes a 12-bit crc based on 3GPP UMTS specifications. \brief This computes a 12-bit crc based on 3GPP UMTS specifications.
@param inPtr Pointer to input byte stream @param inPtr Pointer to input byte stream
@param bitlen length of inputs in bits*/ @param bitlen length of inputs in bits*/
uint32_t crc12 (uint8_t *inPtr, int32_t bitlen); uint32_t crc12 (uint8_t * inptr, uint32_t bitlen);
/*!\fn uint32_t crc8(uint8_t *inPtr, int32_t bitlen) /*!\fn uint32_t crc8(uint8_t *inPtr, int32_t bitlen)
\brief This computes a 8-bit crc based on 3GPP UMTS specifications. \brief This computes a 8-bit crc based on 3GPP UMTS specifications.
@param inPtr Pointer to input byte stream @param inPtr Pointer to input byte stream
@param bitlen length of inputs in bits*/ @param bitlen length of inputs in bits*/
uint32_t crc8 (uint8_t *inPtr, int32_t bitlen); uint32_t crc8 (uint8_t * inptr, uint32_t bitlen);
/*!\fn void phy_viterbi_dot11_sse2(int8_t *y, uint8_t *decoded_bytes, uint16_t n,int offset,int traceback) /*!\fn void phy_viterbi_dot11_sse2(int8_t *y, uint8_t *decoded_bytes, uint16_t n,int offset,int traceback)
\brief This routine performs a SIMD optmized Viterbi decoder for the 802.11 64-state convolutional code. It can be \brief This routine performs a SIMD optmized Viterbi decoder for the 802.11 64-state convolutional code. It can be
run in segments with final trace back after last segment. run in segments with final trace back after last segment.
......
openair1/PHY/CODING/crc_byte.c
View file @ 4a523a39
...@@ -30,185 +30,196 @@ ...@@ -30,185 +30,196 @@
Modified in June, 2001, to include the length non multiple of 8 Modified in June, 2001, to include the length non multiple of 8
*/ */
#include "PHY/types.h"
#include "coding_defs.h" // For initialization && verification purposes, bit by bit implementation with any polynomial
// The first bit is in the MSB of each byte
// Reference 38.212 V15.1.1 Section 5.1 (36-212 v8.6.0 , pp 8-9)
// The highest degree is set by default
/** 1000 0110 0100 1100 1111 1011 D^24 + D^23 + D^18 + D^17 + D^14 + D^11 + D^10 + D^7 + D^6 + D^5 + D^4 + D^3 + D + 1 */
static const uint32_t poly24a = 0x864cfb00;
/** 1000 0000 0000 0000 0110 0011 D^24 + D^23 + D^6 + D^5 + D + 1 */
static const uint32_t poly24b = 0x80006300;
/** 0001 0000 0010 0001 D^16 + D^12 + D^5 + 1 */
static const uint32_t poly16 = 0x10210000;
/** 1000 0000 1111 D^12 + D^11 + D^3 + D^2 + D + 1 */
static const uint32_t poly12 = 0x80F00000;
/** 1001 1011 D^8 + D^7 + D^4 + D^3 + D + 1 */
static const uint32_t poly8 = 0x9B000000;
/*ref 36-212 v8.6.0 , pp 8-9 */ // The following arrays are generated with the function 'crcTableInit'
/* the highest degree is set by default */ /** Encoding table for CRC 24A */
unsigned int poly24a = 0x864cfb00; //1000 0110 0100 1100 1111 1011 D^24 + D^23 + D^18 + D^17 + D^14 + D^11 + D^10 + D^7 + D^6 + D^5 + D^4 + D^3 + D + 1 static const uint32_t crc24aTable[256] = {0, 2253191936, 2329218304, 211416576, 2481381632, 363469312, 422833152, 2675906304, 2709600512, 667795968, 726938624, 2904084224, 845666304, 3022725888, 3098727680, 1056845312, 3310258432, 1124233728, 1335591936, 3386343168, 1453877248, 3504640768, 3699205376, 1513201152, 1691332608, 3800255232, 3994729728, 1750484480, 4146680064, 1902488064, 2113690624, 4222658304, 215083264, 2325549568, 2248467456, 4726528, 2671183872, 427553536, 367133952, 2477719040, 2907754496, 723266304, 663084288, 2714314240, 1052127488, 3103443456, 3026402304, 841991936, 3382665216, 1339267840, 1128951040, 3305543168, 1517912320, 3694492160, 3500968960, 1457551104, 1746819328, 3998392832, 3804976128, 1686613760, 4227381248, 2108965632, 1898820864, 4150349312, 430166528, 2683250944, 2474041088, 356131840, 2319790848, 201967616, 9453056, 2262615296, 3089296128, 1047400448, 855107072, 3032161536, 734267904, 2911432960, 2702247680, 660470784, 3706542848, 1520541696, 1446532608, 3497307392, 1326168576, 3376890112, 3319707392, 1133661184, 2104254976, 4213217536, 4156124928, 1911919616, 4002054912, 1757837312, 1683983872, 3792925952, 359807744, 2470363136, 2678535680, 434883840, 2257902080, 14164224, 205641472, 2316119040, 3035824640, 851441920, 1042681600, 3094017024, 655745792, 2706970624, 2915102208, 730600704, 3493638656, 1450199296, 1525268224, 3701818368, 1138381568, 3314984960, 3373227520, 1329833216, 1908247296, 4159795200, 4217931264, 2099543296, 3797641728, 1679266048, 1754162944, 4005731328, 860333056, 3037421312, 3113396480, 1071534592, 2694923520, 653114880, 712263680, 2889396992, 2462489856, 344614400, 403935232, 2657053440, 18906112, 2272036608, 2348118272, 230263296, 4127796480, 1883624960, 2094800896, 4203797248, 1710214144, 3819124480, 4013605120, 1769355776, 1468535808, 3519344384, 3713865984, 1527898624, 3295606016, 1109528064, 1320941568, 3371631360, 1066814720, 3118118400, 3041083392, 856668928, 2893065216, 708597504, 648388864, 2699647488, 2652337152, 408653568, 348289280, 2458812928, 233936128, 2344447488, 2267322368, 23618304, 4208509952, 2090090240, 1879951616, 4131467776, 1765680384, 4017282560, 3823839232, 1705497344, 1532624128, 3709142528, 3515674624, 1472203520, 3367967744, 1324607232, 1114247424, 3290884608, 719615488, 2896727296, 2687597312, 645758976, 3103954688, 1062104064, 869767680, 3046859008, 2338672384, 220836864, 28328448, 2281486592, 411282944, 2664387840, 2455151360, 337270784, 4020961024, 1776681984, 1702883840, 3811772672, 2085363200, 4194362624, 4137227008, 1893066752, 1311491584, 3362209024, 3305032448, 1118973952, 3721209600, 1535237120, 1461201408, 3511996672, 641048320, 2692310016, 2900398592, 715942144, 3050536448, 866092288, 1057387264, 3108669440, 2276763136, 33053952, 224504576, 2335002624, 340936448, 2451487744, 2659666432, 416002304, 3816494592, 1698163968, 1773017856, 4024623104, 1889400576, 4140895232, 4199086592, 2080637184, 1123692288, 3300316160, 3358532096, 1315166464, 3508325888, 1464874240, 1539949312, 3716495360};
unsigned int poly24b = 0x80006300; // 1000 0000 0000 0000 0110 0011 D^24 + D^23 + D^6 + D^5 + D + 1
unsigned int poly16 = 0x10210000; // 0001 0000 0010 0001 D^16 + D^12 + D^5 + 1
unsigned int poly12 = 0x80F00000; // 1000 0000 1111 D^12 + D^11 + D^3 + D^2 + D + 1
unsigned int poly8 = 0x9B000000; // 1001 1011 D^8 + D^7 + D^4 + D^3 + D + 1
/*********************************************************
For initialization && verification purposes, /** Encoding table for CRC 24B */
bit by bit implementation with any polynomial static const uint32_t crc24bTable[256] = {0, 2147508992, 2147525888, 50688, 2147559680, 84480, 101376, 2147610368, 2147627264, 152064, 168960, 2147677952, 202752, 2147711744, 2147728640, 253440, 2147746048, 287232, 304128, 2147796736, 337920, 2147830528, 2147847424, 388608, 405504, 2147898112, 2147915008, 456192, 2147948800, 489984, 506880, 2147999488, 2148032768, 524800, 574464, 2148050688, 608256, 2148084480, 2148134144, 626176, 675840, 2148152064, 2148201728, 693760, 2148235520, 727552, 777216, 2148253440, 811008, 2148270848, 2148320512, 828928, 2148354304, 862720, 912384, 2148372224, 2148421888, 930304, 979968, 2148439808, 1013760, 2148473600, 2148523264, 1031680, 2148573440, 1098240, 1049600, 2148558592, 1148928, 2148657920, 2148609280, 1134080, 1216512, 2148725504, 2148676864, 1201664, 2148776192, 1300992, 1252352, 2148761344, 1351680, 2148844288, 2148795648, 1336832, 2148894976, 1436160, 1387520, 2148880128, 2148962560, 1503744, 1455104, 2148947712, 1554432, 2149047040, 2148998400, 1539584, 1622016, 2149098240, 2149082368, 1574400, 2149181696, 1673728, 1657856, 2149134080, 2149249280, 1741312, 1725440, 2149201664, 1824768, 2149300992, 2149285120, 1777152, 2149368064, 1876480, 1860608, 2149320448, 1959936, 2149419776, 2149403904, 1912320, 2027520, 2149487360, 2149471488, 1979904, 2149570816, 2079232, 2063360, 2149523200, 2149654784, 2179584, 2196480, 2149705472, 2099200, 2149608192, 2149625088, 2149888, 2297856, 2149806848, 2149823744, 2348544, 2149726464, 2251264, 2268160, 2149777152, 2433024, 2149925632, 2149942528, 2483712, 2149845248, 2386432, 2403328, 2149895936, 2150043904, 2585088, 2601984, 2150094592, 2504704, 2149997312, 2150014208, 2555392, 2703360, 2150179584, 2150229248, 2721280, 2150131968, 2624000, 2673664, 2150149888, 2150330624, 2822656, 2872320, 2150348544, 2775040, 2150251264, 2150300928, 2792960, 2150449408, 2957824, 3007488, 2150467328, 2910208, 2150370048, 2150419712, 2928128, 3108864, 2150568704, 2150618368, 3126784, 2150521088, 3029504, 3079168, 2150539008, 3244032, 2150753024, 2150704384, 3229184, 2150672640, 3197440, 3148800, 2150657792, 2150871296, 3396096, 3347456, 2150856448, 3315712, 2150824704, 2150776064, 3300864, 2150990080, 3531264, 3482624, 2150975232, 3450880, 2150943488, 2150894848, 3436032, 3649536, 2151142144, 2151093504, 3634688, 2151061760, 3602944, 3554304, 2151046912, 2151276800, 3768832, 3752960, 2151229184, 3721216, 2151197440, 2151181568, 3673600, 3919872, 2151396096, 2151380224, 3872256, 2151348480, 3840512, 3824640, 2151300864, 4055040, 2151514880, 2151499008, 4007424, 2151467264, 3975680, 3959808, 2151419648, 2151665920, 4174336, 4158464, 2151618304, 4126720, 2151586560, 2151570688, 4079104};
The first bit is in the MSB of each byte /** Encoding table for CRC 16 */
static const uint16_t crc16Table[256] = {0, 4129, 8258, 12387, 16516, 20645, 24774, 28903, 33032, 37161, 41290, 45419, 49548, 53677, 57806, 61935, 4657, 528, 12915, 8786, 21173, 17044, 29431, 25302, 37689, 33560, 45947, 41818, 54205, 50076, 62463, 58334, 9314, 13379, 1056, 5121, 25830, 29895, 17572, 21637, 42346, 46411, 34088, 38153, 58862, 62927, 50604, 54669, 13907, 9842, 5649, 1584, 30423, 26358, 22165, 18100, 46939, 42874, 38681, 34616, 63455, 59390, 55197, 51132, 18628, 22757, 26758, 30887, 2112, 6241, 10242, 14371, 51660, 55789, 59790, 63919, 35144, 39273, 43274, 47403, 23285, 19156, 31415, 27286, 6769, 2640, 14899, 10770, 56317, 52188, 64447, 60318, 39801, 35672, 47931, 43802, 27814, 31879, 19684, 23749, 11298, 15363, 3168, 7233, 60846, 64911, 52716, 56781, 44330, 48395, 36200, 40265, 32407, 28342, 24277, 20212, 15891, 11826, 7761, 3696, 65439, 61374, 57309, 53244, 48923, 44858, 40793, 36728, 37256, 33193, 45514, 41451, 53516, 49453, 61774, 57711, 4224, 161, 12482, 8419, 20484, 16421, 28742, 24679, 33721, 37784, 41979, 46042, 49981, 54044, 58239, 62302, 689, 4752, 8947, 13010, 16949, 21012, 25207, 29270, 46570, 42443, 38312, 34185, 62830, 58703, 54572, 50445, 13538, 9411, 5280, 1153, 29798, 25671, 21540, 17413, 42971, 47098, 34713, 38840, 59231, 63358, 50973, 55100, 9939, 14066, 1681, 5808, 26199, 30326, 17941, 22068, 55628, 51565, 63758, 59695, 39368, 35305, 47498, 43435, 22596, 18533, 30726, 26663, 6336, 2273, 14466, 10403, 52093, 56156, 60223, 64286, 35833, 39896, 43963, 48026, 19061, 23124, 27191, 31254, 2801, 6864, 10931, 14994, 64814, 60687, 56684, 52557, 48554, 44427, 40424, 36297, 31782, 27655, 23652, 19525, 15522, 11395, 7392, 3265, 61215, 65342, 53085, 57212, 44955, 49082, 36825, 40952, 28183, 32310, 20053, 24180, 11923, 16050, 3793, 7920};
*********************************************************/ /** Encoding table for CRC 12 */
unsigned int static const uint16_t crc12Table[256] = {0, 33008, 33040, 480, 33488, 544, 960, 33584, 34128, 1440, 1088, 33968, 1920, 34672, 34448, 1632, 35408, 2720, 2880, 35760, 2176, 34928, 35216, 2400, 3840, 36848, 36368, 3808, 36304, 3360, 3264, 35888, 37968, 5280, 5440, 38320, 5760, 38512, 38800, 5984, 4352, 37360, 36880, 4320, 37840, 4896, 4800, 37424, 7680, 40688, 40720, 8160, 40144, 7200, 7616, 40240, 39760, 7072, 6720, 39600, 6528, 39280, 39056, 6240, 43088, 10400, 10560, 43440, 10880, 43632, 43920, 11104, 11520, 44528, 44048, 11488, 45008, 12064, 11968, 44592, 8704, 41712, 41744, 9184, 41168, 8224, 8640, 41264, 42832, 10144, 9792, 42672, 9600, 42352, 42128, 9312, 15360, 48368, 48400, 15840, 48848, 15904, 16320, 48944, 47440, 14752, 14400, 47280, 15232, 47984, 47760, 14944, 46672, 13984, 14144, 47024, 13440, 46192, 46480, 13664, 13056, 46064, 45584, 13024, 45520, 12576, 12480, 45104, 53328, 20640, 20800, 53680, 21120, 53872, 54160, 21344, 21760, 54768, 54288, 21728, 55248, 22304, 22208, 54832, 23040, 56048, 56080, 23520, 55504, 22560, 22976, 55600, 57168, 24480, 24128, 57008, 23936, 56688, 56464, 23648, 17408, 50416, 50448, 17888, 50896, 17952, 18368, 50992, 49488, 16800, 16448, 49328, 17280, 50032, 49808, 16992, 52816, 20128, 20288, 53168, 19584, 52336, 52624, 19808, 19200, 52208, 51728, 19168, 51664, 18720, 18624, 51248, 30720, 63728, 63760, 31200, 64208, 31264, 31680, 64304, 64848, 32160, 31808, 64688, 32640, 65392, 65168, 32352, 62032, 29344, 29504, 62384, 28800, 61552, 61840, 29024, 30464, 63472, 62992, 30432, 62928, 29984, 29888, 62512, 60496, 27808, 27968, 60848, 28288, 61040, 61328, 28512, 26880, 59888, 59408, 26848, 60368, 27424, 27328, 59952, 26112, 59120, 59152, 26592, 58576, 25632, 26048, 58672, 58192, 25504, 25152, 58032, 24960, 57712, 57488, 24672};
crcbit (unsigned char * inputptr, int octetlen, unsigned int poly)
{
unsigned int i, crc = 0, c;
while (octetlen-- > 0) { /** Encoding table for CRC 8 */
c = (*inputptr++) << 24; static const uint8_t crc8Table[256] = {0, 155, 173, 54, 193, 90, 108, 247, 25, 130, 180, 47, 216, 67, 117, 238, 50, 169, 159, 4, 243, 104, 94, 197, 43, 176, 134, 29, 234, 113, 71, 220, 100, 255, 201, 82, 165, 62, 8, 147, 125, 230, 208, 75, 188, 39, 17, 138, 86, 205, 251, 96, 151, 12, 58, 161, 79, 212, 226, 121, 142, 21, 35, 184, 200, 83, 101, 254, 9, 146, 164, 63, 209, 74, 124, 231, 16, 139, 189, 38, 250, 97, 87, 204, 59, 160, 150, 13, 227, 120, 78, 213, 34, 185, 143, 20, 172, 55, 1, 154, 109, 246, 192, 91, 181, 46, 24, 131, 116, 239, 217, 66, 158, 5, 51, 168, 95, 196, 242, 105, 135, 28, 42, 177, 70, 221, 235, 112, 11, 144, 166, 61, 202, 81, 103, 252, 18, 137, 191, 36, 211, 72, 126, 229, 57, 162, 148, 15, 248, 99, 85, 206, 32, 187, 141, 22, 225, 122, 76, 215, 111, 244, 194, 89, 174, 53, 3, 152, 118, 237, 219, 64, 183, 44, 26, 129, 93, 198, 240, 107, 156, 7, 49, 170, 68, 223, 233, 114, 133, 30, 40, 179, 195, 88, 110, 245, 2, 153, 175, 52, 218, 65, 119, 236, 27, 128, 182, 45, 241, 106, 92, 199, 48, 171, 157, 6, 232, 115, 69, 222, 41, 178, 132, 31, 167, 60, 10, 145, 102, 253, 203, 80, 190, 37, 19, 136, 127, 228, 210, 73, 149, 14, 56, 163, 84, 207, 249, 98, 140, 23, 33, 186, 77, 214, 224, 123};
for (i = 8; i != 0; i--) {
if ((1 << 31) & (c ^ crc))
crc = (crc << 1) ^ poly;
else
crc <<= 1;
c <<= 1; uint32_t crcbit (uint8_t * inputptr, int32_t octetlen, uint32_t poly)
{
uint32_t i;
uint32_t crc = 0;
uint32_t c;
while (octetlen-- > 0)
{
c = (*inputptr++) << 24;
for (i = 8; i != 0; i--)
{
if ( (1 << 31) & (c ^ crc) )
{
crc = (crc << 1) ^ poly;
}
else
{
crc <<= 1;
}
c <<= 1;
}
} }
}
return crc; return crc;
} }
/********************************************************* // CRC table initialization
crc table initialization
*********************************************************/
static unsigned int crc24aTable[256];
static unsigned int crc24bTable[256];
static unsigned short crc16Table[256];
static unsigned short crc12Table[256];
static unsigned char crc8Table[256];
/*
void crcTableInit (void) void crcTableInit (void)
{ {
unsigned char c = 0; uint8_t c = 0;
do { do
crc24aTable[c] = crcbit (&c, 1, poly24a); {
crc24bTable[c] = crcbit (&c, 1, poly24b); crc24aTable[c] = crcbit (&c, 1, poly24a);
crc16Table[c] = (unsigned short) (crcbit (&c, 1, poly16) >> 16); crc24bTable[c] = crcbit (&c, 1, poly24b);
crc12Table[c] = (unsigned short) (crcbit (&c, 1, poly12) >> 16); crc16Table [c] = (uint16_t) (crcbit (&c, 1, poly16) >> 16);
crc8Table[c] = (unsigned char) (crcbit (&c, 1, poly8) >> 24); crc12Table [c] = (uint16_t) (crcbit (&c, 1, poly12) >> 16);
} while (++c); crc8Table [c] = (uint8_t) (crcbit (&c, 1, poly8 ) >> 24);
}
while (++c);
} }
/********************************************************* */
Byte by byte implementations,
assuming initial byte is 0 padded (in MSB) if necessary
*********************************************************/ // Byte by byte implementations, assuming initial byte is 0 padded (in MSB) if necessary
unsigned int uint32_t crc24a (uint8_t * inptr, uint32_t bitlen)
crc24a (unsigned char * inptr, int bitlen)
{ {
int32_t octetlen = bitlen / 8;
int32_t resbit = (bitlen % 8);
uint32_t crc = 0;
int octetlen, resbit; while (octetlen-- > 0)
unsigned int crc = 0; {
octetlen = bitlen / 8; /* Change in octets */ crc = (crc << 8) ^ crc24aTable[(*inptr++) ^ (crc >> 24)];
resbit = (bitlen % 8); }
while (octetlen-- > 0) {
// printf("crc24a: in %x => crc %x\n",crc,*inptr);
crc = (crc << 8) ^ crc24aTable[(*inptr++) ^ (crc >> 24)];
}
if (resbit > 0) if (resbit > 0)
crc = (crc << resbit) ^ crc24aTable[((*inptr) >> (8 - resbit)) ^ (crc >> (32 - resbit))]; {
crc = (crc << resbit) ^ crc24aTable[((*inptr) >> (8 - resbit)) ^ (crc >> (32 - resbit))];
}
return crc; return crc;
} }
unsigned int crc24b (unsigned char * inptr, int bitlen) uint32_t crc24b (uint8_t * inptr, uint32_t bitlen)
{ {
int32_t octetlen = bitlen / 8;
int32_t resbit = (bitlen % 8);
uint32_t crc = 0;
int octetlen, resbit; while (octetlen-- > 0)
unsigned int crc = 0; {
octetlen = bitlen / 8; /* Change in octets */ crc = (crc << 8) ^ crc24bTable[(*inptr++) ^ (crc >> 24)];
resbit = (bitlen % 8); }
while (octetlen-- > 0) {
// printf("crc24b: in %x => crc %x (%x)\n",crc,*inptr,crc24bTable[(*inptr) ^ (crc >> 24)]);
crc = (crc << 8) ^ crc24bTable[(*inptr++) ^ (crc >> 24)];
}
if (resbit > 0) if (resbit > 0)
crc = (crc << resbit) ^ crc24bTable[((*inptr) >> (8 - resbit)) ^ (crc >> (32 - resbit))]; {
crc = (crc << resbit) ^ crc24bTable[((*inptr) >> (8 - resbit)) ^ (crc >> (32 - resbit))];
}
return crc; return crc;
} }
unsigned int uint32_t crc16 (uint8_t * inptr, uint32_t bitlen)
crc16 (unsigned char * inptr, int bitlen)
{ {
int octetlen, resbit; int32_t octetlen = bitlen / 8;
unsigned int crc = 0; int32_t resbit = (bitlen % 8);
octetlen = bitlen / 8; /* Change in octets */ uint32_t crc = 0;
resbit = (bitlen % 8);
while (octetlen-- > 0) { while (octetlen-- > 0)
{
crc = (crc << 8) ^ (crc16Table[(*inptr++) ^ (crc >> 24)] << 16); crc = (crc << 8) ^ (crc16Table[(*inptr++) ^ (crc >> 24)] << 16);
} }
if (resbit > 0) if (resbit > 0)
crc = (crc << resbit) ^ (crc16Table[((*inptr) >> (8 - resbit)) ^ (crc >> (32 - resbit))] << 16); {
crc = (crc << resbit) ^ (crc16Table[((*inptr) >> (8 - resbit)) ^ (crc >> (32 - resbit))] << 16);
}
return crc; return crc;
} }
unsigned int uint32_t crc12 (uint8_t * inptr, uint32_t bitlen)
crc12 (unsigned char * inptr, int bitlen)
{ {
int octetlen, resbit; int32_t octetlen = bitlen / 8;
unsigned int crc = 0; int32_t resbit = (bitlen % 8);
octetlen = bitlen / 8; /* Change in octets */ uint32_t crc = 0;
resbit = (bitlen % 8);
while (octetlen-- > 0) { while (octetlen-- > 0)
crc = (crc << 8) ^ (crc12Table[(*inptr++) ^ (crc >> 24)] << 16); {
} crc = (crc << 8) ^ (crc12Table[(*inptr++) ^ (crc >> 24)] << 16);
}
if (resbit > 0) if (resbit > 0)
crc = (crc << resbit) ^ (crc12Table[((*inptr) >> (8 - resbit)) ^ (crc >> (32 - resbit))] << 16); {
crc = (crc << resbit) ^ (crc12Table[((*inptr) >> (8 - resbit)) ^ (crc >> (32 - resbit))] << 16);
}
return crc; return crc;
} }
unsigned int uint32_t crc8 (uint8_t * inptr, uint32_t bitlen)
crc8 (unsigned char * inptr, int bitlen)
{ {
int octetlen, resbit; int32_t octetlen = bitlen / 8;
unsigned int crc = 0; int32_t resbit = (bitlen % 8);
octetlen = bitlen / 8; /* Change in octets */ uint32_t crc = 0;
resbit = (bitlen % 8);
while (octetlen-- > 0) { while (octetlen-- > 0)
crc = crc8Table[(*inptr++) ^ (crc >> 24)] << 24; {
} crc = crc8Table[(*inptr++) ^ (crc >> 24)] << 24;
}
if (resbit > 0) if (resbit > 0)
crc = (crc << resbit) ^ (crc8Table[((*inptr) >> (8 - resbit)) ^ (crc >> (32 - resbit))] << 24); {
crc = (crc << resbit) ^ (crc8Table[((*inptr) >> (8 - resbit)) ^ (crc >> (32 - resbit))] << 24);
}
return crc; return crc;
} }
#ifdef DEBUG_CRC #ifdef DEBUG_CRC
/*******************************************************************/ // Test code
/**
Test code
********************************************************************/
#include <stdio.h> #include <stdio.h>
main() main()
{ {
unsigned char test[] = "Thebigredfox"; unsigned char test[] = "Thebigredfox";
crcTableInit(); crcTableInit();
printf("%x\n", crcbit(test, sizeof(test) - 1, poly24)); printf("%x\n", crcbit(test, sizeof(test) - 1, poly24));
printf("%x\n", crc24(test, (sizeof(test) - 1)*8)); printf("%x\n", crc24 (test, (sizeof(test) - 1)*8));
printf("%x\n", crcbit(test, sizeof(test) - 1, poly8)); printf("%x\n", crcbit(test, sizeof(test) - 1, poly8));
printf("%x\n", crc8(test, (sizeof(test) - 1)*8)); printf("%x\n", crc8 (test, (sizeof(test) - 1)*8));
} }
#endif #endif
openair1/PHY/INIT/init_top.c
View file @ 4a523a39
...@@ -67,8 +67,6 @@ void generate_qpsk_table(void) ...@@ -67,8 +67,6 @@ void generate_qpsk_table(void)
void init_lte_top(LTE_DL_FRAME_PARMS *frame_parms) void init_lte_top(LTE_DL_FRAME_PARMS *frame_parms)
{ {
crcTableInit();
ccodedot11_init(); ccodedot11_init();
ccodedot11_init_inv(); ccodedot11_init_inv();
......
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