diff options
Diffstat (limited to 'libloragw/src/loragw_hal.c')
| -rw-r--r-- | libloragw/src/loragw_hal.c | 52 |
1 files changed, 33 insertions, 19 deletions
diff --git a/libloragw/src/loragw_hal.c b/libloragw/src/loragw_hal.c index c2329fc..4319d5e 100644 --- a/libloragw/src/loragw_hal.c +++ b/libloragw/src/loragw_hal.c @@ -296,7 +296,7 @@ int setup_sx1257(uint8_t rf_chain, uint32_t freq_hz) { DEBUG_MSG("ERROR: INVALID RF_CHAIN\n"); return -1; } - + sx125x_write(rf_chain, 0x10, SX125x_TX_DAC_CLK_SEL + 2); /* Enable 'clock out' for both radios */ sx125x_write(rf_chain, 0x26, 0X2D); /* Disable gm of oscillator block */ @@ -669,7 +669,9 @@ int lgw_start(void) { /* configure Lora 'multi' demodulators aka. Lora 'sensor' channels (IF0-3) */ j = 0; - for(i=0;i<=7;++i) j += (if_rf_chain[i] == 1 ? 1 << i : 0); /* transform bool array into binary word */ + for(i=0; i<=7; ++i) { + j += (if_rf_chain[i] == 1 ? 1 << i : 0); /* transform bool array into binary word */ + } lgw_reg_w(LGW_RADIO_SELECT, j); /* IF mapping to radio A/B (per bit, 0=A, 1=B) */ lgw_reg_w(LGW_IF_FREQ_0, IF_HZ_TO_REG(if_freq[0])); /* default -384 */ @@ -694,7 +696,9 @@ int lgw_start(void) { case BW_125KHZ: lgw_reg_w(LGW_MBWSSF_MODEM_BW,0); break; case BW_250KHZ: lgw_reg_w(LGW_MBWSSF_MODEM_BW,1); break; case BW_500KHZ: lgw_reg_w(LGW_MBWSSF_MODEM_BW,2); break; - default: DEBUG_PRINTF("ERROR: UNEXPECTED VALUE %d IN SWITCH STATEMENT\n", lora_rx_bw); return LGW_HAL_ERROR; + default: + DEBUG_PRINTF("ERROR: UNEXPECTED VALUE %d IN SWITCH STATEMENT\n", lora_rx_bw); + return LGW_HAL_ERROR; } switch(lora_rx_sf) { case DR_LORA_SF7: lgw_reg_w(LGW_MBWSSF_RATE_SF,7); break; @@ -703,7 +707,9 @@ int lgw_start(void) { case DR_LORA_SF10: lgw_reg_w(LGW_MBWSSF_RATE_SF,10); break; case DR_LORA_SF11: lgw_reg_w(LGW_MBWSSF_RATE_SF,11); break; case DR_LORA_SF12: lgw_reg_w(LGW_MBWSSF_RATE_SF,12); break; - default: DEBUG_PRINTF("ERROR: UNEXPECTED VALUE %d IN SWITCH STATEMENT\n", lora_rx_sf); return LGW_HAL_ERROR; + default: + DEBUG_PRINTF("ERROR: UNEXPECTED VALUE %d IN SWITCH STATEMENT\n", lora_rx_sf); + return LGW_HAL_ERROR; } lgw_reg_w(LGW_MBWSSF_PPM_OFFSET, lora_rx_ppm_offset); /* default 0 */ lgw_reg_w(LGW_MBWSSF_MODEM_ENABLE, 1); /* default 0 */ @@ -730,6 +736,9 @@ int lgw_start(void) { lgw_reg_w(LGW_MCU_RST_0, 0); lgw_reg_w(LGW_MCU_RST_1, 0); + /* enable GPS event capture */ + lgw_reg_w(LGW_GPS_EN,1); + /* enable LEDs */ lgw_reg_w(LGW_GPIO_MODE,31); // lgw_reg_w(LGW_GPIO_SELECT_OUTPUT,0); /* default 0 */ @@ -786,7 +795,6 @@ int lgw_receive(uint8_t max_pkt, struct lgw_pkt_rx_s *pkt_data) { /* how many packets are in the RX buffer ? Break if zero */ if (buff[0] == 0) { - DEBUG_MSG("Note: RX packet buffer empty, receive function returning nothing\n"); break; /* no more packets to fetch, exit out of FOR loop */ } @@ -949,8 +957,6 @@ int lgw_send(struct lgw_pkt_tx_s pkt_data) { int transfer_size = 0; /* data to transfer from host to TX databuffer */ int payload_offset = 0; /* start of the payload content in the databuffer */ uint8_t power_nibble = 0; /* 4-bit value to set the firmware TX power */ - uint32_t current_tstamp; /* current timestamp, to check for missed TX deadlines */ - uint32_t deadline_tstamp; /* packet must be scheduled before that timestamp value is reached */ /* check if the gateway is running */ if (lgw_is_started == false) { @@ -1023,11 +1029,6 @@ int lgw_send(struct lgw_pkt_tx_s pkt_data) { } // TODO: implement LUT in the firmware and matched value in the HAL - /* reset TX command flags */ - lgw_reg_w(LGW_TX_TRIG_IMMEDIATE, 0); - lgw_reg_w(LGW_TX_TRIG_DELAYED, 0); - lgw_reg_w(LGW_TX_TRIG_GPS, 0); - /* fixed metadata, useful payload and misc metadata compositing */ transfer_size = TX_METADATA_NB + pkt_data.size; /* */ payload_offset = TX_METADATA_NB; /* start the payload just after the metadata */ @@ -1148,6 +1149,11 @@ int lgw_send(struct lgw_pkt_tx_s pkt_data) { /* copy payload from user struct to buffer containing metadata */ memcpy((void *)(buff + payload_offset), (void *)(pkt_data.payload), pkt_data.size); + /* reset TX command flags */ + lgw_reg_w(LGW_TX_TRIG_IMMEDIATE, 0); + lgw_reg_w(LGW_TX_TRIG_DELAYED, 0); + lgw_reg_w(LGW_TX_TRIG_GPS, 0); + /* put metadata + payload in the TX data buffer */ lgw_reg_w(LGW_TX_DATA_BUF_ADDR, 0); lgw_reg_wb(LGW_TX_DATA_BUF_DATA, buff, transfer_size); @@ -1161,13 +1167,6 @@ int lgw_send(struct lgw_pkt_tx_s pkt_data) { case TIMESTAMPED: lgw_reg_w(LGW_TX_TRIG_DELAYED, 1); - lgw_reg_r(LGW_TIMESTAMP, (int32_t *)¤t_tstamp); /* unusable value if GPS is enabled */ - deadline_tstamp = pkt_data.count_us - TX_START_DELAY; /* time at which the controller with start TX sequence */ - if ((deadline_tstamp - current_tstamp) > 0x7FFFFFFF) { - lgw_reg_w(LGW_TX_TRIG_DELAYED, 0); /* cancel TX if deadline was missed */ - DEBUG_MSG("ERROR: MISSED TX DEADLINE\n"); - return LGW_HAL_ERROR; // should return a specific error message - } break; case ON_GPS: @@ -1216,6 +1215,21 @@ int lgw_status(uint8_t select, uint8_t *code) { /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ +int lgw_get_trigcnt(uint32_t* trig_cnt_us) { + int i; + int32_t val; + + i = lgw_reg_r(LGW_TIMESTAMP, &val); + if (i == LGW_REG_SUCCESS) { + *trig_cnt_us = (uint32_t)val; + return LGW_HAL_SUCCESS; + } else { + return LGW_HAL_ERROR; + } +} + +/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ + const char* lgw_version_info() { return lgw_version_string; } |