/** Functions and tasks related to waveform packet generation. * * @file * @author P. LEROY * * A group of functions to handle waveforms, in snapshot or continuous format.\n * */ #include "wf_handler.h" //*************** // waveform rings // F0 ring_node waveform_ring_f0[NB_RING_NODES_F0]; ring_node *current_ring_node_f0; ring_node *ring_node_to_send_swf_f0; // F1 ring_node waveform_ring_f1[NB_RING_NODES_F1]; ring_node *current_ring_node_f1; ring_node *ring_node_to_send_swf_f1; ring_node *ring_node_to_send_cwf_f1; // F2 ring_node waveform_ring_f2[NB_RING_NODES_F2]; ring_node *current_ring_node_f2; ring_node *ring_node_to_send_swf_f2; ring_node *ring_node_to_send_cwf_f2; // F3 ring_node waveform_ring_f3[NB_RING_NODES_F3]; ring_node *current_ring_node_f3; ring_node *ring_node_to_send_cwf_f3; char wf_cont_f3_light[ (NB_SAMPLES_PER_SNAPSHOT) * NB_BYTES_CWF3_LIGHT_BLK ]; bool extractSWF1 = false; bool extractSWF2 = false; bool swf0_ready_flag_f1 = false; bool swf0_ready_flag_f2 = false; bool swf1_ready = false; bool swf2_ready = false; int swf1_extracted[ (NB_SAMPLES_PER_SNAPSHOT * NB_WORDS_SWF_BLK) ]; int swf2_extracted[ (NB_SAMPLES_PER_SNAPSHOT * NB_WORDS_SWF_BLK) ]; ring_node ring_node_swf1_extracted; ring_node ring_node_swf2_extracted; typedef enum resynchro_state_t { MEASURE, CORRECTION } resynchro_state; //********************* // Interrupt SubRoutine ring_node * getRingNodeToSendCWF( unsigned char frequencyChannel) { ring_node *node; node = NULL; switch ( frequencyChannel ) { case CHANNELF1: node = ring_node_to_send_cwf_f1; break; case CHANNELF2: node = ring_node_to_send_cwf_f2; break; case CHANNELF3: node = ring_node_to_send_cwf_f3; break; default: break; } return node; } ring_node * getRingNodeToSendSWF( unsigned char frequencyChannel) { ring_node *node; node = NULL; switch ( frequencyChannel ) { case CHANNELF0: node = ring_node_to_send_swf_f0; break; case CHANNELF1: node = ring_node_to_send_swf_f1; break; case CHANNELF2: node = ring_node_to_send_swf_f2; break; default: break; } return node; } void reset_extractSWF( void ) { extractSWF1 = false; extractSWF2 = false; swf0_ready_flag_f1 = false; swf0_ready_flag_f2 = false; swf1_ready = false; swf2_ready = false; } inline void waveforms_isr_f3( void ) { rtems_status_code spare_status; if ( (lfrCurrentMode == LFR_MODE_NORMAL) || (lfrCurrentMode == LFR_MODE_BURST) // in BURST the data are used to place v, e1 and e2 in the HK packet || (lfrCurrentMode == LFR_MODE_SBM1) || (lfrCurrentMode == LFR_MODE_SBM2) ) { // in modes other than STANDBY and BURST, send the CWF_F3 data //*** // F3 if ( (waveform_picker_regs->status & BITS_WFP_STATUS_F3) != INIT_CHAR ) { // [1100 0000] check the f3 full bits ring_node_to_send_cwf_f3 = current_ring_node_f3->previous; current_ring_node_f3 = current_ring_node_f3->next; if ((waveform_picker_regs->status & BIT_WFP_BUF_F3_0) == BIT_WFP_BUF_F3_0){ // [0100 0000] f3 buffer 0 is full ring_node_to_send_cwf_f3->coarseTime = waveform_picker_regs->f3_0_coarse_time; ring_node_to_send_cwf_f3->fineTime = waveform_picker_regs->f3_0_fine_time; waveform_picker_regs->addr_data_f3_0 = current_ring_node_f3->buffer_address; waveform_picker_regs->status = waveform_picker_regs->status & RST_WFP_F3_0; // [1000 1000 0100 0000] } else if ((waveform_picker_regs->status & BIT_WFP_BUF_F3_1) == BIT_WFP_BUF_F3_1){ // [1000 0000] f3 buffer 1 is full ring_node_to_send_cwf_f3->coarseTime = waveform_picker_regs->f3_1_coarse_time; ring_node_to_send_cwf_f3->fineTime = waveform_picker_regs->f3_1_fine_time; waveform_picker_regs->addr_data_f3_1 = current_ring_node_f3->buffer_address; waveform_picker_regs->status = waveform_picker_regs->status & RST_WFP_F3_1; // [1000 1000 1000 0000] } if (rtems_event_send( Task_id[TASKID_CWF3], RTEMS_EVENT_0 ) != RTEMS_SUCCESSFUL) { spare_status = rtems_event_send( Task_id[TASKID_DUMB], RTEMS_EVENT_0 ); } } } } inline void waveforms_isr_burst( void ) { unsigned char status; rtems_status_code spare_status; status = (waveform_picker_regs->status & BITS_WFP_STATUS_F2) >> SHIFT_WFP_STATUS_F2; // [0011 0000] get the status bits for f2 switch(status) { case BIT_WFP_BUFFER_0: ring_node_to_send_cwf_f2 = current_ring_node_f2->previous; ring_node_to_send_cwf_f2->sid = SID_BURST_CWF_F2; ring_node_to_send_cwf_f2->coarseTime = waveform_picker_regs->f2_0_coarse_time; ring_node_to_send_cwf_f2->fineTime = waveform_picker_regs->f2_0_fine_time; current_ring_node_f2 = current_ring_node_f2->next; waveform_picker_regs->addr_data_f2_0 = current_ring_node_f2->buffer_address; if (rtems_event_send( Task_id[TASKID_CWF2], RTEMS_EVENT_MODE_BURST ) != RTEMS_SUCCESSFUL) { spare_status = rtems_event_send( Task_id[TASKID_DUMB], RTEMS_EVENT_0 ); } waveform_picker_regs->status = waveform_picker_regs->status & RST_WFP_F2_0; // [0100 0100 0001 0000] break; case BIT_WFP_BUFFER_1: ring_node_to_send_cwf_f2 = current_ring_node_f2->previous; ring_node_to_send_cwf_f2->sid = SID_BURST_CWF_F2; ring_node_to_send_cwf_f2->coarseTime = waveform_picker_regs->f2_1_coarse_time; ring_node_to_send_cwf_f2->fineTime = waveform_picker_regs->f2_1_fine_time; current_ring_node_f2 = current_ring_node_f2->next; waveform_picker_regs->addr_data_f2_1 = current_ring_node_f2->buffer_address; if (rtems_event_send( Task_id[TASKID_CWF2], RTEMS_EVENT_MODE_BURST ) != RTEMS_SUCCESSFUL) { spare_status = rtems_event_send( Task_id[TASKID_DUMB], RTEMS_EVENT_0 ); } waveform_picker_regs->status = waveform_picker_regs->status & RST_WFP_F2_1; // [0100 0100 0010 0000] break; default: break; } } inline void waveform_isr_normal_sbm1_sbm2( void ) { rtems_status_code status; //*** // F0 if ( (waveform_picker_regs->status & BITS_WFP_STATUS_F0) != INIT_CHAR ) // [0000 0011] check the f0 full bits { swf0_ready_flag_f1 = true; swf0_ready_flag_f2 = true; ring_node_to_send_swf_f0 = current_ring_node_f0->previous; current_ring_node_f0 = current_ring_node_f0->next; if ( (waveform_picker_regs->status & BIT_WFP_BUFFER_0) == BIT_WFP_BUFFER_0) { ring_node_to_send_swf_f0->coarseTime = waveform_picker_regs->f0_0_coarse_time; ring_node_to_send_swf_f0->fineTime = waveform_picker_regs->f0_0_fine_time; waveform_picker_regs->addr_data_f0_0 = current_ring_node_f0->buffer_address; waveform_picker_regs->status = waveform_picker_regs->status & RST_WFP_F0_0; // [0001 0001 0000 0001] } else if ( (waveform_picker_regs->status & BIT_WFP_BUFFER_1) == BIT_WFP_BUFFER_1) { ring_node_to_send_swf_f0->coarseTime = waveform_picker_regs->f0_1_coarse_time; ring_node_to_send_swf_f0->fineTime = waveform_picker_regs->f0_1_fine_time; waveform_picker_regs->addr_data_f0_1 = current_ring_node_f0->buffer_address; waveform_picker_regs->status = waveform_picker_regs->status & RST_WFP_F0_1; // [0001 0001 0000 0010] } // send an event to the WFRM task for resynchro activities status = rtems_event_send( Task_id[TASKID_WFRM], RTEMS_EVENT_SWF_RESYNCH ); } //*** // F1 if ( (waveform_picker_regs->status & 0x0c) != INIT_CHAR ) { // [0000 1100] check the f1 full bits // (1) change the receiving buffer for the waveform picker ring_node_to_send_cwf_f1 = current_ring_node_f1->previous; current_ring_node_f1 = current_ring_node_f1->next; if ( (waveform_picker_regs->status & BIT_WFP_BUF_F1_0) == BIT_WFP_BUF_F1_0) { ring_node_to_send_cwf_f1->coarseTime = waveform_picker_regs->f1_0_coarse_time; ring_node_to_send_cwf_f1->fineTime = waveform_picker_regs->f1_0_fine_time; waveform_picker_regs->addr_data_f1_0 = current_ring_node_f1->buffer_address; waveform_picker_regs->status = waveform_picker_regs->status & RST_WFP_F1_0; // [0010 0010 0000 0100] f1 bits = 0 } else if ( (waveform_picker_regs->status & BIT_WFP_BUF_F1_1) == BIT_WFP_BUF_F1_1) { ring_node_to_send_cwf_f1->coarseTime = waveform_picker_regs->f1_1_coarse_time; ring_node_to_send_cwf_f1->fineTime = waveform_picker_regs->f1_1_fine_time; waveform_picker_regs->addr_data_f1_1 = current_ring_node_f1->buffer_address; waveform_picker_regs->status = waveform_picker_regs->status & RST_WFP_F1_1; // [0010 0010 0000 1000] f1 bits = 0 } // (2) send an event for the the CWF1 task for transmission (and snapshot extraction if needed) status = rtems_event_send( Task_id[TASKID_CWF1], RTEMS_EVENT_MODE_NORM_S1_S2 ); } //*** // F2 if ( (waveform_picker_regs->status & BITS_WFP_STATUS_F2) != INIT_CHAR ) { // [0011 0000] check the f2 full bit // (1) change the receiving buffer for the waveform picker ring_node_to_send_cwf_f2 = current_ring_node_f2->previous; ring_node_to_send_cwf_f2->sid = SID_SBM2_CWF_F2; current_ring_node_f2 = current_ring_node_f2->next; if ( (waveform_picker_regs->status & BIT_WFP_BUF_F2_0) == BIT_WFP_BUF_F2_0) { ring_node_to_send_cwf_f2->coarseTime = waveform_picker_regs->f2_0_coarse_time; ring_node_to_send_cwf_f2->fineTime = waveform_picker_regs->f2_0_fine_time; waveform_picker_regs->addr_data_f2_0 = current_ring_node_f2->buffer_address; waveform_picker_regs->status = waveform_picker_regs->status & RST_WFP_F2_0; // [0100 0100 0001 0000] } else if ( (waveform_picker_regs->status & BIT_WFP_BUF_F2_1) == BIT_WFP_BUF_F2_1) { ring_node_to_send_cwf_f2->coarseTime = waveform_picker_regs->f2_1_coarse_time; ring_node_to_send_cwf_f2->fineTime = waveform_picker_regs->f2_1_fine_time; waveform_picker_regs->addr_data_f2_1 = current_ring_node_f2->buffer_address; waveform_picker_regs->status = waveform_picker_regs->status & RST_WFP_F2_1; // [0100 0100 0010 0000] } // (2) send an event for the waveforms transmission status = rtems_event_send( Task_id[TASKID_CWF2], RTEMS_EVENT_MODE_NORM_S1_S2 ); } } rtems_isr waveforms_isr( rtems_vector_number vector ) { /** This is the interrupt sub routine called by the waveform picker core. * * This ISR launch different actions depending mainly on two pieces of information: * 1. the values read in the registers of the waveform picker. * 2. the current LFR mode. * */ // STATUS // new error error buffer full // 15 14 13 12 11 10 9 8 // f3 f2 f1 f0 f3 f2 f1 f0 // // ready buffer // 7 6 5 4 3 2 1 0 // f3_1 f3_0 f2_1 f2_0 f1_1 f1_0 f0_1 f0_0 rtems_status_code spare_status; waveforms_isr_f3(); //************************************************* // copy the status bits in the housekeeping packets housekeeping_packet.hk_lfr_vhdl_iir_cal = (unsigned char) ((waveform_picker_regs->status & BYTE0_MASK) >> SHIFT_1_BYTE); if ( (waveform_picker_regs->status & BYTE0_MASK) != INIT_CHAR) // [1111 1111 0000 0000] check the error bits { spare_status = rtems_event_send( Task_id[TASKID_DUMB], RTEMS_EVENT_10 ); } switch(lfrCurrentMode) { //******** // STANDBY case LFR_MODE_STANDBY: break; //************************** // LFR NORMAL, SBM1 and SBM2 case LFR_MODE_NORMAL: case LFR_MODE_SBM1: case LFR_MODE_SBM2: waveform_isr_normal_sbm1_sbm2(); break; //****** // BURST case LFR_MODE_BURST: waveforms_isr_burst(); break; //******** // DEFAULT default: break; } } //************ // RTEMS TASKS rtems_task wfrm_task(rtems_task_argument argument) //used with the waveform picker VHDL IP { /** This RTEMS task is dedicated to the transmission of snapshots of the NORMAL mode. * * @param unused is the starting argument of the RTEMS task * * The following data packets are sent by this task: * - TM_LFR_SCIENCE_NORMAL_SWF_F0 * - TM_LFR_SCIENCE_NORMAL_SWF_F1 * - TM_LFR_SCIENCE_NORMAL_SWF_F2 * */ rtems_event_set event_out; rtems_id queue_id; rtems_status_code status; ring_node *ring_node_swf1_extracted_ptr; ring_node *ring_node_swf2_extracted_ptr; event_out = EVENT_SETS_NONE_PENDING; queue_id = RTEMS_ID_NONE; ring_node_swf1_extracted_ptr = (ring_node *) &ring_node_swf1_extracted; ring_node_swf2_extracted_ptr = (ring_node *) &ring_node_swf2_extracted; status = get_message_queue_id_send( &queue_id ); if (status != RTEMS_SUCCESSFUL) { PRINTF1("in WFRM *** ERR get_message_queue_id_send %d\n", status); } BOOT_PRINTF("in WFRM ***\n"); while(1){ // wait for an RTEMS_EVENT rtems_event_receive(RTEMS_EVENT_MODE_NORMAL | RTEMS_EVENT_SWF_RESYNCH, RTEMS_WAIT | RTEMS_EVENT_ANY, RTEMS_NO_TIMEOUT, &event_out); if (event_out == RTEMS_EVENT_MODE_NORMAL) { DEBUG_PRINTF("WFRM received RTEMS_EVENT_MODE_SBM2\n"); ring_node_to_send_swf_f0->sid = SID_NORM_SWF_F0; ring_node_swf1_extracted_ptr->sid = SID_NORM_SWF_F1; ring_node_swf2_extracted_ptr->sid = SID_NORM_SWF_F2; status = rtems_message_queue_send( queue_id, &ring_node_to_send_swf_f0, sizeof( ring_node* ) ); status = rtems_message_queue_send( queue_id, &ring_node_swf1_extracted_ptr, sizeof( ring_node* ) ); status = rtems_message_queue_send( queue_id, &ring_node_swf2_extracted_ptr, sizeof( ring_node* ) ); } if (event_out == RTEMS_EVENT_SWF_RESYNCH) { snapshot_resynchronization( (unsigned char *) &ring_node_to_send_swf_f0->coarseTime ); } } } rtems_task cwf3_task(rtems_task_argument argument) //used with the waveform picker VHDL IP { /** This RTEMS task is dedicated to the transmission of continuous waveforms at f3. * * @param unused is the starting argument of the RTEMS task * * The following data packet is sent by this task: * - TM_LFR_SCIENCE_NORMAL_CWF_F3 * */ rtems_event_set event_out; rtems_id queue_id; rtems_status_code status; ring_node ring_node_cwf3_light; ring_node *ring_node_to_send_cwf; event_out = EVENT_SETS_NONE_PENDING; queue_id = RTEMS_ID_NONE; status = get_message_queue_id_send( &queue_id ); if (status != RTEMS_SUCCESSFUL) { PRINTF1("in CWF3 *** ERR get_message_queue_id_send %d\n", status) } ring_node_to_send_cwf_f3->sid = SID_NORM_CWF_LONG_F3; // init the ring_node_cwf3_light structure ring_node_cwf3_light.buffer_address = (int) wf_cont_f3_light; ring_node_cwf3_light.coarseTime = INIT_CHAR; ring_node_cwf3_light.fineTime = INIT_CHAR; ring_node_cwf3_light.next = NULL; ring_node_cwf3_light.previous = NULL; ring_node_cwf3_light.sid = SID_NORM_CWF_F3; ring_node_cwf3_light.status = INIT_CHAR; BOOT_PRINTF("in CWF3 ***\n"); while(1){ // wait for an RTEMS_EVENT rtems_event_receive( RTEMS_EVENT_0, RTEMS_WAIT | RTEMS_EVENT_ANY, RTEMS_NO_TIMEOUT, &event_out); if ( (lfrCurrentMode == LFR_MODE_NORMAL) || (lfrCurrentMode == LFR_MODE_SBM1) || (lfrCurrentMode==LFR_MODE_SBM2) ) { ring_node_to_send_cwf = getRingNodeToSendCWF( CHANNELF3 ); if ( (parameter_dump_packet.sy_lfr_n_cwf_long_f3 & BIT_CWF_LONG_F3) == BIT_CWF_LONG_F3) { PRINTF("send CWF_LONG_F3\n"); ring_node_to_send_cwf_f3->sid = SID_NORM_CWF_LONG_F3; status = rtems_message_queue_send( queue_id, &ring_node_to_send_cwf, sizeof( ring_node* ) ); } else { PRINTF("send CWF_F3 (light)\n"); send_waveform_CWF3_light( ring_node_to_send_cwf, &ring_node_cwf3_light, queue_id ); } } else { PRINTF1("in CWF3 *** lfrCurrentMode is %d, no data will be sent\n", lfrCurrentMode) } } } rtems_task cwf2_task(rtems_task_argument argument) // ONLY USED IN BURST AND SBM2 { /** This RTEMS task is dedicated to the transmission of continuous waveforms at f2. * * @param unused is the starting argument of the RTEMS task * * The following data packet is sent by this function: * - TM_LFR_SCIENCE_BURST_CWF_F2 * - TM_LFR_SCIENCE_SBM2_CWF_F2 * */ rtems_event_set event_out; rtems_id queue_id; rtems_status_code status; ring_node *ring_node_to_send; unsigned long long int acquisitionTimeF0_asLong; event_out = EVENT_SETS_NONE_PENDING; queue_id = RTEMS_ID_NONE; acquisitionTimeF0_asLong = INIT_CHAR; status = get_message_queue_id_send( &queue_id ); if (status != RTEMS_SUCCESSFUL) { PRINTF1("in CWF2 *** ERR get_message_queue_id_send %d\n", status) } BOOT_PRINTF("in CWF2 ***\n"); while(1){ // wait for an RTEMS_EVENT// send the snapshot when built status = rtems_event_send( Task_id[TASKID_WFRM], RTEMS_EVENT_MODE_SBM2 ); rtems_event_receive( RTEMS_EVENT_MODE_NORM_S1_S2 | RTEMS_EVENT_MODE_BURST, RTEMS_WAIT | RTEMS_EVENT_ANY, RTEMS_NO_TIMEOUT, &event_out); ring_node_to_send = getRingNodeToSendCWF( CHANNELF2 ); if (event_out == RTEMS_EVENT_MODE_BURST) { // data are sent whatever the transition time status = rtems_message_queue_send( queue_id, &ring_node_to_send, sizeof( ring_node* ) ); } else if (event_out == RTEMS_EVENT_MODE_NORM_S1_S2) { if ( lfrCurrentMode == LFR_MODE_SBM2 ) { // data are sent depending on the transition time if ( time_management_regs->coarse_time >= lastValidEnterModeTime) { status = rtems_message_queue_send( queue_id, &ring_node_to_send, sizeof( ring_node* ) ); } } // launch snapshot extraction if needed if (extractSWF2 == true) { ring_node_to_send_swf_f2 = ring_node_to_send_cwf_f2; // extract the snapshot build_snapshot_from_ring( ring_node_to_send_swf_f2, CHANNELF2, acquisitionTimeF0_asLong, &ring_node_swf2_extracted, swf2_extracted ); extractSWF2 = false; swf2_ready = true; // once the snapshot at f2 is ready the CWF1 task will send an event to WFRM } if (swf0_ready_flag_f2 == true) { extractSWF2 = true; // record the acquition time of the f0 snapshot to use to build the snapshot at f2 acquisitionTimeF0_asLong = get_acquisition_time( (unsigned char *) &ring_node_to_send_swf_f0->coarseTime ); swf0_ready_flag_f2 = false; } } } } rtems_task cwf1_task(rtems_task_argument argument) // ONLY USED IN SBM1 { /** This RTEMS task is dedicated to the transmission of continuous waveforms at f1. * * @param unused is the starting argument of the RTEMS task * * The following data packet is sent by this function: * - TM_LFR_SCIENCE_SBM1_CWF_F1 * */ rtems_event_set event_out; rtems_id queue_id; rtems_status_code status; ring_node *ring_node_to_send_cwf; event_out = EVENT_SETS_NONE_PENDING; queue_id = RTEMS_ID_NONE; status = get_message_queue_id_send( &queue_id ); if (status != RTEMS_SUCCESSFUL) { PRINTF1("in CWF1 *** ERR get_message_queue_id_send %d\n", status) } BOOT_PRINTF("in CWF1 ***\n"); while(1){ // wait for an RTEMS_EVENT rtems_event_receive( RTEMS_EVENT_MODE_NORM_S1_S2, RTEMS_WAIT | RTEMS_EVENT_ANY, RTEMS_NO_TIMEOUT, &event_out); ring_node_to_send_cwf = getRingNodeToSendCWF( 1 ); ring_node_to_send_cwf_f1->sid = SID_SBM1_CWF_F1; if (lfrCurrentMode == LFR_MODE_SBM1) { // data are sent depending on the transition time if ( time_management_regs->coarse_time >= lastValidEnterModeTime ) { status = rtems_message_queue_send( queue_id, &ring_node_to_send_cwf, sizeof( ring_node* ) ); } } // launch snapshot extraction if needed if (extractSWF1 == true) { ring_node_to_send_swf_f1 = ring_node_to_send_cwf; // launch the snapshot extraction status = rtems_event_send( Task_id[TASKID_SWBD], RTEMS_EVENT_MODE_NORM_S1_S2 ); extractSWF1 = false; } if (swf0_ready_flag_f1 == true) { extractSWF1 = true; swf0_ready_flag_f1 = false; // this step shall be executed only one time } if ((swf1_ready == true) && (swf2_ready == true)) // swf_f1 is ready after the extraction { status = rtems_event_send( Task_id[TASKID_WFRM], RTEMS_EVENT_MODE_NORMAL ); swf1_ready = false; swf2_ready = false; } } } rtems_task swbd_task(rtems_task_argument argument) { /** This RTEMS task is dedicated to the building of snapshots from different continuous waveforms buffers. * * @param unused is the starting argument of the RTEMS task * */ rtems_event_set event_out; unsigned long long int acquisitionTimeF0_asLong; event_out = EVENT_SETS_NONE_PENDING; acquisitionTimeF0_asLong = INIT_CHAR; BOOT_PRINTF("in SWBD ***\n") while(1){ // wait for an RTEMS_EVENT rtems_event_receive( RTEMS_EVENT_MODE_NORM_S1_S2, RTEMS_WAIT | RTEMS_EVENT_ANY, RTEMS_NO_TIMEOUT, &event_out); if (event_out == RTEMS_EVENT_MODE_NORM_S1_S2) { acquisitionTimeF0_asLong = get_acquisition_time( (unsigned char *) &ring_node_to_send_swf_f0->coarseTime ); build_snapshot_from_ring( ring_node_to_send_swf_f1, CHANNELF1, acquisitionTimeF0_asLong, &ring_node_swf1_extracted, swf1_extracted ); swf1_ready = true; // the snapshot has been extracted and is ready to be sent } else { PRINTF1("in SWBD *** unexpected rtems event received %x\n", (int) event_out) } } } //****************** // general functions void WFP_init_rings( void ) { // F0 RING init_ring( waveform_ring_f0, NB_RING_NODES_F0, wf_buffer_f0, WFRM_BUFFER ); // F1 RING init_ring( waveform_ring_f1, NB_RING_NODES_F1, wf_buffer_f1, WFRM_BUFFER ); // F2 RING init_ring( waveform_ring_f2, NB_RING_NODES_F2, wf_buffer_f2, WFRM_BUFFER ); // F3 RING init_ring( waveform_ring_f3, NB_RING_NODES_F3, wf_buffer_f3, WFRM_BUFFER ); ring_node_swf1_extracted.buffer_address = (int) swf1_extracted; ring_node_swf2_extracted.buffer_address = (int) swf2_extracted; DEBUG_PRINTF1("waveform_ring_f0 @%x\n", (unsigned int) waveform_ring_f0) DEBUG_PRINTF1("waveform_ring_f1 @%x\n", (unsigned int) waveform_ring_f1) DEBUG_PRINTF1("waveform_ring_f2 @%x\n", (unsigned int) waveform_ring_f2) DEBUG_PRINTF1("waveform_ring_f3 @%x\n", (unsigned int) waveform_ring_f3) DEBUG_PRINTF1("wf_buffer_f0 @%x\n", (unsigned int) wf_buffer_f0) DEBUG_PRINTF1("wf_buffer_f1 @%x\n", (unsigned int) wf_buffer_f1) DEBUG_PRINTF1("wf_buffer_f2 @%x\n", (unsigned int) wf_buffer_f2) DEBUG_PRINTF1("wf_buffer_f3 @%x\n", (unsigned int) wf_buffer_f3) } void WFP_reset_current_ring_nodes( void ) { current_ring_node_f0 = waveform_ring_f0[0].next; current_ring_node_f1 = waveform_ring_f1[0].next; current_ring_node_f2 = waveform_ring_f2[0].next; current_ring_node_f3 = waveform_ring_f3[0].next; ring_node_to_send_swf_f0 = waveform_ring_f0; ring_node_to_send_swf_f1 = waveform_ring_f1; ring_node_to_send_swf_f2 = waveform_ring_f2; ring_node_to_send_cwf_f1 = waveform_ring_f1; ring_node_to_send_cwf_f2 = waveform_ring_f2; ring_node_to_send_cwf_f3 = waveform_ring_f3; } int send_waveform_CWF3_light( ring_node *ring_node_to_send, ring_node *ring_node_cwf3_light, rtems_id queue_id ) { /** This function sends CWF_F3 CCSDS packets without the b1, b2 and b3 data. * * @param waveform points to the buffer containing the data that will be send. * @param headerCWF points to a table of headers that have been prepared for the data transmission. * @param queue_id is the id of the rtems queue to which spw_ioctl_pkt_send structures will be send. The structures * contain information to setup the transmission of the data packets. * * By default, CWF_F3 packet are send without the b1, b2 and b3 data. This function rebuilds a data buffer * from the incoming data and sends it in 7 packets, 6 containing 340 blocks and 1 one containing 8 blocks. * */ unsigned int i; unsigned int j; int ret; rtems_status_code status; char *sample; int *dataPtr; ret = LFR_DEFAULT; dataPtr = (int*) ring_node_to_send->buffer_address; ring_node_cwf3_light->coarseTime = ring_node_to_send->coarseTime; ring_node_cwf3_light->fineTime = ring_node_to_send->fineTime; //********************** // BUILD CWF3_light DATA for ( i=0; i< NB_SAMPLES_PER_SNAPSHOT; i++) { sample = (char*) &dataPtr[ (i * NB_WORDS_SWF_BLK) ]; for (j=0; j < CWF_BLK_SIZE; j++) { wf_cont_f3_light[ (i * NB_BYTES_CWF3_LIGHT_BLK) + j] = sample[ j ]; } } // SEND PACKET status = rtems_message_queue_send( queue_id, &ring_node_cwf3_light, sizeof( ring_node* ) ); if (status != RTEMS_SUCCESSFUL) { ret = LFR_DEFAULT; } return ret; } void compute_acquisition_time( unsigned int coarseTime, unsigned int fineTime, unsigned int sid, unsigned char pa_lfr_pkt_nr, unsigned char * acquisitionTime ) { unsigned long long int acquisitionTimeAsLong; unsigned char localAcquisitionTime[BYTES_PER_TIME]; double deltaT; deltaT = INIT_FLOAT; localAcquisitionTime[BYTE_0] = (unsigned char) ( coarseTime >> SHIFT_3_BYTES ); localAcquisitionTime[BYTE_1] = (unsigned char) ( coarseTime >> SHIFT_2_BYTES ); localAcquisitionTime[BYTE_2] = (unsigned char) ( coarseTime >> SHIFT_1_BYTE ); localAcquisitionTime[BYTE_3] = (unsigned char) ( coarseTime ); localAcquisitionTime[BYTE_4] = (unsigned char) ( fineTime >> SHIFT_1_BYTE ); localAcquisitionTime[BYTE_5] = (unsigned char) ( fineTime ); acquisitionTimeAsLong = ( (unsigned long long int) localAcquisitionTime[BYTE_0] << SHIFT_5_BYTES ) + ( (unsigned long long int) localAcquisitionTime[BYTE_1] << SHIFT_4_BYTES ) + ( (unsigned long long int) localAcquisitionTime[BYTE_2] << SHIFT_3_BYTES ) + ( (unsigned long long int) localAcquisitionTime[BYTE_3] << SHIFT_2_BYTES ) + ( (unsigned long long int) localAcquisitionTime[BYTE_4] << SHIFT_1_BYTE ) + ( (unsigned long long int) localAcquisitionTime[BYTE_5] ); switch( sid ) { case SID_NORM_SWF_F0: deltaT = ( (double ) (pa_lfr_pkt_nr) ) * BLK_NR_304 * T0_IN_FINETIME ; break; case SID_NORM_SWF_F1: deltaT = ( (double ) (pa_lfr_pkt_nr) ) * BLK_NR_304 * T1_IN_FINETIME ; break; case SID_NORM_SWF_F2: deltaT = ( (double ) (pa_lfr_pkt_nr) ) * BLK_NR_304 * T2_IN_FINETIME ; break; case SID_SBM1_CWF_F1: deltaT = ( (double ) (pa_lfr_pkt_nr) ) * BLK_NR_CWF * T1_IN_FINETIME ; break; case SID_SBM2_CWF_F2: deltaT = ( (double ) (pa_lfr_pkt_nr) ) * BLK_NR_CWF * T2_IN_FINETIME ; break; case SID_BURST_CWF_F2: deltaT = ( (double ) (pa_lfr_pkt_nr) ) * BLK_NR_CWF * T2_IN_FINETIME ; break; case SID_NORM_CWF_F3: deltaT = ( (double ) (pa_lfr_pkt_nr) ) * BLK_NR_CWF_SHORT_F3 * T3_IN_FINETIME ; break; case SID_NORM_CWF_LONG_F3: deltaT = ( (double ) (pa_lfr_pkt_nr) ) * BLK_NR_CWF * T3_IN_FINETIME ; break; default: PRINTF1("in compute_acquisition_time *** ERR unexpected sid %d\n", sid) deltaT = 0.; break; } acquisitionTimeAsLong = acquisitionTimeAsLong + (unsigned long long int) deltaT; // acquisitionTime[BYTE_0] = (unsigned char) (acquisitionTimeAsLong >> SHIFT_5_BYTES); acquisitionTime[BYTE_1] = (unsigned char) (acquisitionTimeAsLong >> SHIFT_4_BYTES); acquisitionTime[BYTE_2] = (unsigned char) (acquisitionTimeAsLong >> SHIFT_3_BYTES); acquisitionTime[BYTE_3] = (unsigned char) (acquisitionTimeAsLong >> SHIFT_2_BYTES); acquisitionTime[BYTE_4] = (unsigned char) (acquisitionTimeAsLong >> SHIFT_1_BYTE ); acquisitionTime[BYTE_5] = (unsigned char) (acquisitionTimeAsLong ); } void build_snapshot_from_ring( ring_node *ring_node_to_send, unsigned char frequencyChannel, unsigned long long int acquisitionTimeF0_asLong, ring_node *ring_node_swf_extracted, int *swf_extracted) { unsigned int i; unsigned int node; unsigned long long int centerTime_asLong; unsigned long long int acquisitionTime_asLong; unsigned long long int bufferAcquisitionTime_asLong; unsigned char *ptr1; unsigned char *ptr2; unsigned char *timeCharPtr; unsigned char nb_ring_nodes; unsigned long long int frequency_asLong; unsigned long long int nbTicksPerSample_asLong; unsigned long long int nbSamplesPart1_asLong; unsigned long long int sampleOffset_asLong; unsigned int deltaT_F0; unsigned int deltaT_F1; unsigned long long int deltaT_F2; deltaT_F0 = DELTAT_F0; deltaT_F1 = DELTAF_F1; deltaT_F2 = DELTAF_F2; sampleOffset_asLong = INIT_CHAR; // (1) get the f0 acquisition time => the value is passed in argument // (2) compute the central reference time centerTime_asLong = acquisitionTimeF0_asLong + deltaT_F0; acquisitionTime_asLong = centerTime_asLong; //set to default value (Don_Initialisation_P2) bufferAcquisitionTime_asLong = centerTime_asLong; //set to default value (Don_Initialisation_P2) nbTicksPerSample_asLong = TICKS_PER_T2; //set to default value (Don_Initialisation_P2) // (3) compute the acquisition time of the current snapshot switch(frequencyChannel) { case CHANNELF1: // 1 is for F1 = 4096 Hz acquisitionTime_asLong = centerTime_asLong - deltaT_F1; nb_ring_nodes = NB_RING_NODES_F1; frequency_asLong = FREQ_F1; nbTicksPerSample_asLong = TICKS_PER_T1; // 65536 / 4096; break; case CHANNELF2: // 2 is for F2 = 256 Hz acquisitionTime_asLong = centerTime_asLong - deltaT_F2; nb_ring_nodes = NB_RING_NODES_F2; frequency_asLong = FREQ_F2; nbTicksPerSample_asLong = TICKS_PER_T2; // 65536 / 256; break; default: acquisitionTime_asLong = centerTime_asLong; nb_ring_nodes = 0; frequency_asLong = FREQ_F2; nbTicksPerSample_asLong = TICKS_PER_T2; break; } //***************************************************************************** // (4) search the ring_node with the acquisition time <= acquisitionTime_asLong node = 0; while ( node < nb_ring_nodes) { //PRINTF1("%d ... ", node); bufferAcquisitionTime_asLong = get_acquisition_time( (unsigned char *) &ring_node_to_send->coarseTime ); if (bufferAcquisitionTime_asLong <= acquisitionTime_asLong) { //PRINTF1("buffer found with acquisition time = %llx\n", bufferAcquisitionTime_asLong); node = nb_ring_nodes; } else { node = node + 1; ring_node_to_send = ring_node_to_send->previous; } } // (5) compute the number of samples to take in the current buffer sampleOffset_asLong = ((acquisitionTime_asLong - bufferAcquisitionTime_asLong) * frequency_asLong ) >> SHIFT_2_BYTES; nbSamplesPart1_asLong = NB_SAMPLES_PER_SNAPSHOT - sampleOffset_asLong; //PRINTF2("sampleOffset_asLong = %lld, nbSamplesPart1_asLong = %lld\n", sampleOffset_asLong, nbSamplesPart1_asLong); // (6) compute the final acquisition time acquisitionTime_asLong = bufferAcquisitionTime_asLong + (sampleOffset_asLong * nbTicksPerSample_asLong); // (7) copy the acquisition time at the beginning of the extrated snapshot ptr1 = (unsigned char*) &acquisitionTime_asLong; // fine time ptr2 = (unsigned char*) &ring_node_swf_extracted->fineTime; ptr2[BYTE_2] = ptr1[ BYTE_4 + OFFSET_2_BYTES ]; ptr2[BYTE_3] = ptr1[ BYTE_5 + OFFSET_2_BYTES ]; // coarse time ptr2 = (unsigned char*) &ring_node_swf_extracted->coarseTime; ptr2[BYTE_0] = ptr1[ BYTE_0 + OFFSET_2_BYTES ]; ptr2[BYTE_1] = ptr1[ BYTE_1 + OFFSET_2_BYTES ]; ptr2[BYTE_2] = ptr1[ BYTE_2 + OFFSET_2_BYTES ]; ptr2[BYTE_3] = ptr1[ BYTE_3 + OFFSET_2_BYTES ]; // re set the synchronization bit timeCharPtr = (unsigned char*) &ring_node_to_send->coarseTime; ptr2[0] = ptr2[0] | (timeCharPtr[0] & SYNC_BIT); // [1000 0000] if ( (nbSamplesPart1_asLong >= NB_SAMPLES_PER_SNAPSHOT) | (nbSamplesPart1_asLong < 0) ) { nbSamplesPart1_asLong = 0; } // copy the part 1 of the snapshot in the extracted buffer for ( i = 0; i < (nbSamplesPart1_asLong * NB_WORDS_SWF_BLK); i++ ) { swf_extracted[i] = ((int*) ring_node_to_send->buffer_address)[ i + (sampleOffset_asLong * NB_WORDS_SWF_BLK) ]; } // copy the part 2 of the snapshot in the extracted buffer ring_node_to_send = ring_node_to_send->next; for ( i = (nbSamplesPart1_asLong * NB_WORDS_SWF_BLK); i < (NB_SAMPLES_PER_SNAPSHOT * NB_WORDS_SWF_BLK); i++ ) { swf_extracted[i] = ((int*) ring_node_to_send->buffer_address)[ (i-(nbSamplesPart1_asLong * NB_WORDS_SWF_BLK)) ]; } } double computeCorrection( unsigned char *timePtr ) { unsigned long long int acquisitionTime; unsigned long long int centerTime; unsigned long long int previousTick; unsigned long long int nextTick; unsigned long long int deltaPreviousTick; unsigned long long int deltaNextTick; double deltaPrevious_ms; double deltaNext_ms; double correctionInF2; correctionInF2 = 0; //set to default value (Don_Initialisation_P2) // get acquisition time in fine time ticks acquisitionTime = get_acquisition_time( timePtr ); // compute center time centerTime = acquisitionTime + DELTAT_F0; // (2048. / 24576. / 2.) * 65536. = 2730.667; previousTick = centerTime - (centerTime & INT16_ALL_F); nextTick = previousTick + TICKS_PER_S; deltaPreviousTick = centerTime - previousTick; deltaNextTick = nextTick - centerTime; deltaPrevious_ms = (((double) deltaPreviousTick) / TICKS_PER_S) * MS_PER_S; deltaNext_ms = (((double) deltaNextTick) / TICKS_PER_S) * MS_PER_S; PRINTF2(" delta previous = %.3f ms, delta next = %.2f ms\n", deltaPrevious_ms, deltaNext_ms); // which tick is the closest? if (deltaPreviousTick > deltaNextTick) { // the snapshot center is just before the second => increase delta_snapshot correctionInF2 = + (deltaNext_ms * FREQ_F2 / MS_PER_S ); } else { // the snapshot center is just after the second => decrease delta_snapshot correctionInF2 = - (deltaPrevious_ms * FREQ_F2 / MS_PER_S ); } PRINTF1(" correctionInF2 = %.2f\n", correctionInF2); return correctionInF2; } void applyCorrection( double correction ) { int correctionInt; correctionInt = 0; if (correction >= 0.) { if ( (ONE_TICK_CORR_INTERVAL_0_MIN < correction) && (correction < ONE_TICK_CORR_INTERVAL_0_MAX) ) { correctionInt = ONE_TICK_CORR; } else { correctionInt = CORR_MULT * floor(correction); } } else { if ( (ONE_TICK_CORR_INTERVAL_1_MIN < correction) && (correction < ONE_TICK_CORR_INTERVAL_1_MAX) ) { correctionInt = -ONE_TICK_CORR; } else { correctionInt = CORR_MULT * ceil(correction); } } waveform_picker_regs->delta_snapshot = waveform_picker_regs->delta_snapshot + correctionInt; } void snapshot_resynchronization( unsigned char *timePtr ) { /** This function compute a correction to apply on delta_snapshot. * * * @param timePtr is a pointer to the acquisition time of the snapshot being considered. * * @return void * */ static double correction = INIT_FLOAT; static resynchro_state state = MEASURE; static unsigned int nbSnapshots = 0; int correctionInt; correctionInt = 0; switch (state) { case MEASURE: // ******** PRINTF1("MEASURE === %d\n", nbSnapshots); state = CORRECTION; correction = computeCorrection( timePtr ); PRINTF1("MEASURE === correction = %.2f\n", correction ); applyCorrection( correction ); PRINTF1("MEASURE === delta_snapshot = %d\n", waveform_picker_regs->delta_snapshot); //**** break; case CORRECTION: //************ PRINTF1("CORRECTION === %d\n", nbSnapshots); state = MEASURE; computeCorrection( timePtr ); set_wfp_delta_snapshot(); PRINTF1("CORRECTION === delta_snapshot = %d\n", waveform_picker_regs->delta_snapshot); //**** break; default: break; } nbSnapshots++; } //************** // wfp registers void reset_wfp_burst_enable( void ) { /** This function resets the waveform picker burst_enable register. * * The burst bits [f2 f1 f0] and the enable bits [f3 f2 f1 f0] are set to 0. * */ // [1000 000] burst f2, f1, f0 enable f3, f2, f1, f0 waveform_picker_regs->run_burst_enable = waveform_picker_regs->run_burst_enable & RST_BITS_RUN_BURST_EN; } void reset_wfp_status( void ) { /** This function resets the waveform picker status register. * * All status bits are set to 0 [new_err full_err full]. * */ waveform_picker_regs->status = INT16_ALL_F; } void reset_wfp_buffer_addresses( void ) { // F0 waveform_picker_regs->addr_data_f0_0 = current_ring_node_f0->previous->buffer_address; // 0x08 waveform_picker_regs->addr_data_f0_1 = current_ring_node_f0->buffer_address; // 0x0c // F1 waveform_picker_regs->addr_data_f1_0 = current_ring_node_f1->previous->buffer_address; // 0x10 waveform_picker_regs->addr_data_f1_1 = current_ring_node_f1->buffer_address; // 0x14 // F2 waveform_picker_regs->addr_data_f2_0 = current_ring_node_f2->previous->buffer_address; // 0x18 waveform_picker_regs->addr_data_f2_1 = current_ring_node_f2->buffer_address; // 0x1c // F3 waveform_picker_regs->addr_data_f3_0 = current_ring_node_f3->previous->buffer_address; // 0x20 waveform_picker_regs->addr_data_f3_1 = current_ring_node_f3->buffer_address; // 0x24 } void reset_waveform_picker_regs( void ) { /** This function resets the waveform picker module registers. * * The registers affected by this function are located at the following offset addresses: * - 0x00 data_shaping * - 0x04 run_burst_enable * - 0x08 addr_data_f0 * - 0x0C addr_data_f1 * - 0x10 addr_data_f2 * - 0x14 addr_data_f3 * - 0x18 status * - 0x1C delta_snapshot * - 0x20 delta_f0 * - 0x24 delta_f0_2 * - 0x28 delta_f1 (obsolet parameter) * - 0x2c delta_f2 * - 0x30 nb_data_by_buffer * - 0x34 nb_snapshot_param * - 0x38 start_date * - 0x3c nb_word_in_buffer * */ set_wfp_data_shaping(); // 0x00 *** R1 R0 SP1 SP0 BW reset_wfp_burst_enable(); // 0x04 *** [run *** burst f2, f1, f0 *** enable f3, f2, f1, f0 ] reset_wfp_buffer_addresses(); reset_wfp_status(); // 0x18 set_wfp_delta_snapshot(); // 0x1c *** 300 s => 0x12bff set_wfp_delta_f0_f0_2(); // 0x20, 0x24 //the parameter delta_f1 [0x28] is not used anymore set_wfp_delta_f2(); // 0x2c DEBUG_PRINTF1("delta_snapshot %x\n", waveform_picker_regs->delta_snapshot); DEBUG_PRINTF1("delta_f0 %x\n", waveform_picker_regs->delta_f0); DEBUG_PRINTF1("delta_f0_2 %x\n", waveform_picker_regs->delta_f0_2); DEBUG_PRINTF1("delta_f1 %x\n", waveform_picker_regs->delta_f1); DEBUG_PRINTF1("delta_f2 %x\n", waveform_picker_regs->delta_f2); // 2688 = 8 * 336 waveform_picker_regs->nb_data_by_buffer = DFLT_WFP_NB_DATA_BY_BUFFER; // 0x30 *** 2688 - 1 => nb samples -1 waveform_picker_regs->snapshot_param = DFLT_WFP_SNAPSHOT_PARAM; // 0x34 *** 2688 => nb samples waveform_picker_regs->start_date = COARSE_TIME_MASK; // // coarse time and fine time registers are not initialized, they are volatile // waveform_picker_regs->buffer_length = DFLT_WFP_BUFFER_LENGTH; // buffer length in burst = 3 * 2688 / 16 = 504 = 0x1f8 } void set_wfp_data_shaping( void ) { /** This function sets the data_shaping register of the waveform picker module. * * The value is read from one field of the parameter_dump_packet structure:\n * bw_sp0_sp1_r0_r1 * */ unsigned char data_shaping; // get the parameters for the data shaping [BW SP0 SP1 R0 R1] in sy_lfr_common1 and configure the register // waveform picker : [R1 R0 SP1 SP0 BW] data_shaping = parameter_dump_packet.sy_lfr_common_parameters; waveform_picker_regs->data_shaping = ( (data_shaping & BIT_5) >> SHIFT_5_BITS ) // BW + ( (data_shaping & BIT_4) >> SHIFT_3_BITS ) // SP0 + ( (data_shaping & BIT_3) >> 1 ) // SP1 + ( (data_shaping & BIT_2) << 1 ) // R0 + ( (data_shaping & BIT_1) << SHIFT_3_BITS ) // R1 + ( (data_shaping & BIT_0) << SHIFT_5_BITS ); // R2 } void set_wfp_burst_enable_register( unsigned char mode ) { /** This function sets the waveform picker burst_enable register depending on the mode. * * @param mode is the LFR mode to launch. * * The burst bits shall be before the enable bits. * */ // [0000 0000] burst f2, f1, f0 enable f3 f2 f1 f0 // the burst bits shall be set first, before the enable bits switch(mode) { case LFR_MODE_NORMAL: case LFR_MODE_SBM1: case LFR_MODE_SBM2: waveform_picker_regs->run_burst_enable = RUN_BURST_ENABLE_SBM2; // [0110 0000] enable f2 and f1 burst waveform_picker_regs->run_burst_enable = waveform_picker_regs->run_burst_enable | 0x0f; // [1111] enable f3 f2 f1 f0 break; case LFR_MODE_BURST: waveform_picker_regs->run_burst_enable = RUN_BURST_ENABLE_BURST; // [0100 0000] f2 burst enabled waveform_picker_regs->run_burst_enable = waveform_picker_regs->run_burst_enable | 0x0c; // [1100] enable f3 and f2 break; default: waveform_picker_regs->run_burst_enable = INIT_CHAR; // [0000 0000] no burst enabled, no waveform enabled break; } } void set_wfp_delta_snapshot( void ) { /** This function sets the delta_snapshot register of the waveform picker module. * * The value is read from two (unsigned char) of the parameter_dump_packet structure: * - sy_lfr_n_swf_p[0] * - sy_lfr_n_swf_p[1] * */ unsigned int delta_snapshot; unsigned int delta_snapshot_in_T2; delta_snapshot = (parameter_dump_packet.sy_lfr_n_swf_p[0] * CONST_256) + parameter_dump_packet.sy_lfr_n_swf_p[1]; delta_snapshot_in_T2 = delta_snapshot * FREQ_F2; waveform_picker_regs->delta_snapshot = delta_snapshot_in_T2 - 1; // max 4 bytes } void set_wfp_delta_f0_f0_2( void ) { unsigned int delta_snapshot; unsigned int nb_samples_per_snapshot; float delta_f0_in_float; delta_snapshot = waveform_picker_regs->delta_snapshot; nb_samples_per_snapshot = (parameter_dump_packet.sy_lfr_n_swf_l[0] * CONST_256) + parameter_dump_packet.sy_lfr_n_swf_l[1]; delta_f0_in_float = (nb_samples_per_snapshot / 2.) * ( (1. / FREQ_F2) - (1. / FREQ_F0) ) * FREQ_F2; waveform_picker_regs->delta_f0 = delta_snapshot - floor( delta_f0_in_float ); waveform_picker_regs->delta_f0_2 = DFLT_WFP_DELTA_F0_2; // 48 = 11 0000, max 7 bits } void set_wfp_delta_f1( void ) { /** Sets the value of the delta_f1 parameter * * @param void * * @return void * * delta_f1 is not used, the snapshots are extracted from CWF_F1 waveforms. * */ unsigned int delta_snapshot; unsigned int nb_samples_per_snapshot; float delta_f1_in_float; delta_snapshot = waveform_picker_regs->delta_snapshot; nb_samples_per_snapshot = (parameter_dump_packet.sy_lfr_n_swf_l[0] * CONST_256) + parameter_dump_packet.sy_lfr_n_swf_l[1]; delta_f1_in_float = (nb_samples_per_snapshot / 2.) * ( (1. / FREQ_F2) - (1. / FREQ_F1) ) * FREQ_F2; waveform_picker_regs->delta_f1 = delta_snapshot - floor( delta_f1_in_float ); } void set_wfp_delta_f2( void ) // parameter not used, only delta_f0 and delta_f0_2 are used { /** Sets the value of the delta_f2 parameter * * @param void * * @return void * * delta_f2 is used only for the first snapshot generation, even when the snapshots are extracted from CWF_F2 * waveforms (see lpp_waveform_snapshot_controler.vhd for details). * */ unsigned int delta_snapshot; unsigned int nb_samples_per_snapshot; delta_snapshot = waveform_picker_regs->delta_snapshot; nb_samples_per_snapshot = (parameter_dump_packet.sy_lfr_n_swf_l[0] * CONST_256) + parameter_dump_packet.sy_lfr_n_swf_l[1]; waveform_picker_regs->delta_f2 = delta_snapshot - (nb_samples_per_snapshot / 2) - 1; } //***************** // local parameters void increment_seq_counter_source_id( unsigned char *packet_sequence_control, unsigned int sid ) { /** This function increments the parameter "sequence_cnt" depending on the sid passed in argument. * * @param packet_sequence_control is a pointer toward the parameter sequence_cnt to update. * @param sid is the source identifier of the packet being updated. * * REQ-LFR-SRS-5240 / SSS-CP-FS-590 * The sequence counters shall wrap around from 2^14 to zero. * The sequence counter shall start at zero at startup. * * REQ-LFR-SRS-5239 / SSS-CP-FS-580 * All TM_LFR_SCIENCE_ packets are sent to ground, i.e. destination id = 0 * */ unsigned short *sequence_cnt; unsigned short segmentation_grouping_flag; unsigned short new_packet_sequence_control; rtems_mode initial_mode_set; rtems_mode current_mode_set; rtems_status_code status; initial_mode_set = RTEMS_DEFAULT_MODES; current_mode_set = RTEMS_DEFAULT_MODES; sequence_cnt = NULL; //****************************************** // CHANGE THE MODE OF THE CALLING RTEMS TASK status = rtems_task_mode( RTEMS_NO_PREEMPT, RTEMS_PREEMPT_MASK, &initial_mode_set ); if ( (sid == SID_NORM_SWF_F0) || (sid == SID_NORM_SWF_F1) || (sid == SID_NORM_SWF_F2) || (sid == SID_NORM_CWF_F3) || (sid == SID_NORM_CWF_LONG_F3) || (sid == SID_BURST_CWF_F2) || (sid == SID_NORM_ASM_F0) || (sid == SID_NORM_ASM_F1) || (sid == SID_NORM_ASM_F2) || (sid == SID_NORM_BP1_F0) || (sid == SID_NORM_BP1_F1) || (sid == SID_NORM_BP1_F2) || (sid == SID_NORM_BP2_F0) || (sid == SID_NORM_BP2_F1) || (sid == SID_NORM_BP2_F2) || (sid == SID_BURST_BP1_F0) || (sid == SID_BURST_BP2_F0) || (sid == SID_BURST_BP1_F1) || (sid == SID_BURST_BP2_F1) ) { sequence_cnt = (unsigned short *) &sequenceCounters_SCIENCE_NORMAL_BURST; } else if ( (sid ==SID_SBM1_CWF_F1) || (sid ==SID_SBM2_CWF_F2) || (sid == SID_SBM1_BP1_F0) || (sid == SID_SBM1_BP2_F0) || (sid == SID_SBM2_BP1_F0) || (sid == SID_SBM2_BP2_F0) || (sid == SID_SBM2_BP1_F1) || (sid == SID_SBM2_BP2_F1) ) { sequence_cnt = (unsigned short *) &sequenceCounters_SCIENCE_SBM1_SBM2; } else { sequence_cnt = (unsigned short *) NULL; PRINTF1("in increment_seq_counter_source_id *** ERR apid_destid %d not known\n", sid) } if (sequence_cnt != NULL) { segmentation_grouping_flag = TM_PACKET_SEQ_CTRL_STANDALONE << SHIFT_1_BYTE; *sequence_cnt = (*sequence_cnt) & SEQ_CNT_MASK; new_packet_sequence_control = segmentation_grouping_flag | (*sequence_cnt) ; packet_sequence_control[0] = (unsigned char) (new_packet_sequence_control >> SHIFT_1_BYTE); packet_sequence_control[1] = (unsigned char) (new_packet_sequence_control ); // increment the sequence counter if ( *sequence_cnt < SEQ_CNT_MAX) { *sequence_cnt = *sequence_cnt + 1; } else { *sequence_cnt = 0; } } //************************************* // RESTORE THE MODE OF THE CALLING TASK status = rtems_task_mode( initial_mode_set, RTEMS_PREEMPT_MASK, ¤t_mode_set ); }