#ifndef RDS_H #define RDS_H /* The RDS error-detection code generator polynomial is * x^10 + x^8 + x^7 + x^5 + x^4 + x^3 + x^0 */ #define POLY 0x1B9 #define POLY_DEG 10 #define BLOCK_SIZE 16 #define GROUP_LENGTH 4 #define BITS_PER_GROUP (GROUP_LENGTH * (BLOCK_SIZE + POLY_DEG)) // when i say ratio 10, i mean 1187.5*10 #define RDS_SAMPLE_RATE 11875 // pira's m32 works at 361 khz, which is a ratio of 304, but this does a ratio of 10, while the m232 does a ratio of about 500 #define SAMPLES_PER_BIT 10 // (1/1187.5)*RDS_SAMPLE_RATE or RDS_SAMPLE_RATE/1187.5, to check you can do (1187.5*SAMPLES_PER_BIT)=(RDS_SAMPLE_RATE) #define FILTER_SIZE 40 #define SAMPLE_BUFFER_SIZE (SAMPLES_PER_BIT + FILTER_SIZE) #define RT_LENGTH 64 #define PS_LENGTH 8 #define PTYN_LENGTH 8 #define LPS_LENGTH 32 #define DEFAULT_GRPSQC "002222XY" #define MAX_AFS 25 #define AF_CODE_FILLER 205 #define AF_CODE_NO_AF 224 #define AF_CODE_NUM_AFS_BASE AF_CODE_NO_AF #define AF_CODE_LFMF_FOLLOWS 250 #define PROGRAMS 2 #define MAX_ODAS 8 // List of ODAs: https://www.nrscstandards.org/committees/dsm/archive/rds-oda-aids.pdf #define ODA_AID_RTPLUS 0x4bd7 #pragma pack(1) typedef struct { uint8_t num_entries; uint8_t num_afs : 5; uint8_t afs[MAX_AFS]; } RDSAFs; typedef struct { uint8_t enabled : 1; uint16_t pi; uint8_t pin[4]; unsigned char ps[8]; uint8_t ta : 1; uint8_t tp : 1; RDSAFs af; } RDSEONs; typedef struct { uint16_t pi; uint8_t ecclic_enabled : 1; uint16_t lic : 12; uint8_t ecc; uint8_t ta : 1; uint8_t pty : 5; uint8_t tp : 1; uint8_t ms : 1; uint8_t di : 4; unsigned char ps[PS_LENGTH]; unsigned char tps[PS_LENGTH]; uint8_t shortrt : 1; uint8_t rt1_enabled : 1; unsigned char rt1[RT_LENGTH]; uint8_t ptyn_enabled : 1; unsigned char ptyn[PTYN_LENGTH]; RDSAFs af; uint8_t ct : 1; unsigned char lps[LPS_LENGTH]; uint8_t pin[4]; unsigned char grp_sqc[24]; uint8_t udg1_len : 4; uint8_t udg2_len : 4; uint16_t udg1[8][3]; uint16_t udg2[8][3]; RDSEONs eon[4]; } RDSData; typedef struct { uint8_t ecc_or_lic : 1; uint8_t ps_update : 1; uint8_t tps_update : 1; unsigned char ps_text[PS_LENGTH]; unsigned char tps_text[PS_LENGTH]; uint8_t ps_csegment : 4; unsigned char rt_text[RT_LENGTH]; uint8_t rt_state : 5; uint8_t rt_update : 1; uint8_t rt_ab : 1; uint8_t rt_segments : 5; unsigned char ptyn_text[RT_LENGTH]; uint8_t ptyn_state : 1; uint8_t ptyn_update : 1; uint8_t ptyn_ab : 1; unsigned char lps_text[RT_LENGTH]; uint8_t lps_state : 5; uint8_t lps_update : 1; uint8_t lps_segments : 5; uint16_t custom_group[GROUP_LENGTH]; uint8_t rtp_oda : 1; uint8_t grp_seq_idx[2]; uint8_t udg_idxs[2]; uint8_t last_ct_minute : 6; } RDSState; typedef struct { uint8_t group; uint16_t aid; uint16_t scb; } RDSODA; typedef struct { uint8_t current : 4; uint8_t count : 4; } RDSODAState; typedef struct { uint8_t group; uint8_t enabled : 1; uint8_t running : 1; uint8_t toggle : 1; uint8_t type[2]; uint8_t start[2]; uint8_t len[2]; } RDSRTPlusData; typedef struct { RDSData data[PROGRAMS]; RDSState state[PROGRAMS]; RDSODA odas[PROGRAMS][MAX_ODAS]; RDSODAState oda_state[PROGRAMS]; RDSRTPlusData rtpData[PROGRAMS]; uint8_t program : 3; } RDSEncoder; #pragma pack() #define GROUP_TYPE_0 ( 0 << 4) #define GROUP_TYPE_1 ( 1 << 4) #define GROUP_TYPE_2 ( 2 << 4) #define GROUP_TYPE_3 ( 3 << 4) #define GROUP_TYPE_4 ( 4 << 4) #define GROUP_TYPE_5 ( 5 << 4) #define GROUP_TYPE_6 ( 6 << 4) #define GROUP_TYPE_7 ( 7 << 4) #define GROUP_TYPE_8 ( 8 << 4) #define GROUP_TYPE_9 ( 9 << 4) #define GROUP_TYPE_10 (10 << 4) #define GROUP_TYPE_11 (11 << 4) #define GROUP_TYPE_12 (12 << 4) #define GROUP_TYPE_13 (13 << 4) #define GROUP_TYPE_14 (14 << 4) #define GROUP_TYPE_15 (15 << 4) #define GROUP_VER_A 0 #define GROUP_VER_B 1 #define GROUP_0A (GROUP_TYPE_0 | GROUP_VER_A) #define GROUP_1A (GROUP_TYPE_1 | GROUP_VER_A) #define GROUP_2A (GROUP_TYPE_2 | GROUP_VER_A) #define GROUP_3A (GROUP_TYPE_3 | GROUP_VER_A) #define GROUP_4A (GROUP_TYPE_4 | GROUP_VER_A) #define GROUP_5A (GROUP_TYPE_5 | GROUP_VER_A) #define GROUP_6A (GROUP_TYPE_6 | GROUP_VER_A) #define GROUP_7A (GROUP_TYPE_7 | GROUP_VER_A) #define GROUP_8A (GROUP_TYPE_8 | GROUP_VER_A) #define GROUP_9A (GROUP_TYPE_9 | GROUP_VER_A) #define GROUP_10A (GROUP_TYPE_10 | GROUP_VER_A) #define GROUP_11A (GROUP_TYPE_11 | GROUP_VER_A) #define GROUP_12A (GROUP_TYPE_12 | GROUP_VER_A) #define GROUP_13A (GROUP_TYPE_13 | GROUP_VER_A) #define GROUP_14A (GROUP_TYPE_14 | GROUP_VER_A) #define GROUP_15A (GROUP_TYPE_15 | GROUP_VER_A) #define GROUP_0B (GROUP_TYPE_0 | GROUP_VER_B) #define GROUP_1B (GROUP_TYPE_1 | GROUP_VER_B) #define GROUP_2B (GROUP_TYPE_2 | GROUP_VER_B) #define GROUP_3B (GROUP_TYPE_3 | GROUP_VER_B) #define GROUP_4B (GROUP_TYPE_4 | GROUP_VER_B) #define GROUP_5B (GROUP_TYPE_5 | GROUP_VER_B) #define GROUP_6B (GROUP_TYPE_6 | GROUP_VER_B) #define GROUP_7B (GROUP_TYPE_7 | GROUP_VER_B) #define GROUP_8B (GROUP_TYPE_8 | GROUP_VER_B) #define GROUP_9B (GROUP_TYPE_9 | GROUP_VER_B) #define GROUP_10B (GROUP_TYPE_10 | GROUP_VER_B) #define GROUP_11B (GROUP_TYPE_11 | GROUP_VER_B) #define GROUP_12B (GROUP_TYPE_12 | GROUP_VER_B) #define GROUP_13B (GROUP_TYPE_13 | GROUP_VER_B) #define GROUP_14B (GROUP_TYPE_14 | GROUP_VER_B) #define GROUP_15B (GROUP_TYPE_15 | GROUP_VER_B) #define GET_GROUP_TYPE(x) ((x >> 4) & 15) #define GET_GROUP_VER(x) (x & 1) #define IS_TYPE_B(a) (a[1] & 0x0800) void saveToFile(RDSEncoder *emp, const char *option); void loadFromFile(RDSEncoder *emp); int rdssaved(); void set_rds_defaults(RDSEncoder* enc, uint8_t program); void init_rds_encoder(RDSEncoder* enc); void get_rds_bits(RDSEncoder* enc, uint8_t *bits); void set_rds_rt1(RDSEncoder* enc, unsigned char *rt1); void set_rds_ps(RDSEncoder* enc, unsigned char *ps); void set_rds_tps(RDSEncoder* enc, unsigned char *tps); void set_rds_lps(RDSEncoder* enc, unsigned char *lps); void set_rds_rtplus_flags(RDSEncoder* enc, uint8_t flags); void set_rds_rtplus_tags(RDSEncoder* enc, uint8_t *tags); void set_rds_ptyn(RDSEncoder* enc, unsigned char *ptyn); #endif