43 void hopping_init( hopping_t *c ) {  in hopping_init()  argument
44     assert( c != NULL );  in hopping_init()
46     memset( c, 0, sizeof(hopping_t) );  in hopping_init()
49 void hopping_set_channel_map( hopping_t *c, const uint8_t *chm ) {  in hopping_set_channel_map()  argument
50     assert( c != NULL );  in hopping_set_channel_map()
53     memcpy( c->chMap, chm, 5 );  in hopping_set_channel_map()
55     c->chCnt = 0;  in hopping_set_channel_map()
58         LOG_DBG("%d(%d)\n", i, GET_BIT( c->chMap, i ) );  in hopping_set_channel_map()
59         if( 1 == GET_BIT( c->chMap, i ) ) {  in hopping_set_channel_map()
60             c->chRemap[c->chCnt++] = i;  in hopping_set_channel_map()
70 void hopping_csa1_set_hop_increment( hopping_t *c, uint8_t hopIncrement ){  in hopping_csa1_set_hop_increment()  argument
71     assert( c != NULL );  in hopping_csa1_set_hop_increment()
73     c->hopIncrement = hopIncrement;  in hopping_csa1_set_hop_increment()
76 uint8_t hopping_csa1_get_next_channel( hopping_t *c ) {  in hopping_csa1_get_next_channel()  argument
77     assert( c != NULL );  in hopping_csa1_get_next_channel()
79     c->currentCh = (c->currentCh + c->hopIncrement) % 37;  in hopping_csa1_get_next_channel()
80     if( 1 == GET_BIT( c->chMap, c->currentCh ) ) {  in hopping_csa1_get_next_channel()
81         return c->currentCh;  in hopping_csa1_get_next_channel()
83         return c->chRemap[ c->currentCh % c->chCnt ];  in hopping_csa1_get_next_channel()
88 void hopping_csa2_set_access_address( hopping_t *c, uint32_t accessAddress ){  in hopping_csa2_set_access_address()  argument
89     assert( c != NULL );  in hopping_csa2_set_access_address()
91     c->channelIdentifier = (accessAddress >> 16) ^ (accessAddress & 0xffff);  in hopping_csa2_set_access_address()
106 static uint16_t hopping_csa2_prn_e(hopping_t *c, uint16_t counter){  in hopping_csa2_prn_e()  argument
107     assert( c != NULL );  in hopping_csa2_prn_e()
110     uint16_t v = counter ^ c->channelIdentifier;  in hopping_csa2_prn_e()
112     v = hopping_csa2_mam(v, c->channelIdentifier);  in hopping_csa2_prn_e()
114     v = hopping_csa2_mam(v, c->channelIdentifier);  in hopping_csa2_prn_e()
116     v = hopping_csa2_mam(v, c->channelIdentifier);  in hopping_csa2_prn_e()
117     v = v ^ c->channelIdentifier;  in hopping_csa2_prn_e()
121 uint8_t hopping_csa2_get_channel_for_counter( hopping_t *c, uint16_t counter ){  in hopping_csa2_get_channel_for_counter()  argument
122     assert( c != NULL );  in hopping_csa2_get_channel_for_counter()
124     uint16_t prn_e = hopping_csa2_prn_e( c, counter);  in hopping_csa2_get_channel_for_counter()
126     if ( 1 == GET_BIT( c->chMap, unmapped_channel)){  in hopping_csa2_get_channel_for_counter()
129         uint16_t remappingIndex = (((uint32_t) c->chCnt) * prn_e) >> 16;  in hopping_csa2_get_channel_for_counter()
130         return c->chRemap[ remappingIndex ];  in hopping_csa2_get_channel_for_counter()