feat(llcc68): honor directional TX settings

Apply the SX126x IQ config register fix after each LoRa packet parameter update so standard and inverted IQ changes take effect.

Reapply TX power settings in LoRa and GFSK async flush paths so a TX profile can differ from the RX/init profile.

src/llcc68.cpp

@@ -874,12 +874,14 @@ LLCC68::set_packet_params(uint16_t preamble_length, uint8_t payload_length,
   const uint8_t data[] = {
       static_cast<uint8_t>((preamble_length >> 8) & 0xFF),
       static_cast<uint8_t>(preamble_length & 0xFF),
-      crc_type,
-      payload_length,
       hdr_type,
+      payload_length,
+      crc_type,
       iq_type,
   };
-  return write_stream(RADIOLIB_SX126X_CMD_SET_PACKET_PARAMS, data);
+  auto r = write_stream(RADIOLIB_SX126X_CMD_SET_PACKET_PARAMS, data);
+  APP_RADIO_RETURN_ERR(r);
+  return fix_inverted_iq(iq_type);
 }
 
 expected<unit, error_code>
@@ -1307,6 +1309,10 @@ LLCC68::hal_async_flush(lora_parameters_t params) {
                                              params.packet_params.hdr_type,
                                              params.packet_params.iq_type),
                            "tx::set_packet_params");
+  auto chip_type_ = hal_get_chip_type();
+  APP_RADIO_RETURN_ERR_CTX(chip_type_, "tx::get_chip_type");
+  APP_RADIO_RETURN_ERR_CTX(hal_set_output_power(*chip_type_, params.tx_params),
+                           "tx::hal_set_output_power");
   APP_RADIO_RETURN_ERR_CTX(set_buffer_base_address(),
                            "tx::set_buffer_base_address");
   APP_RADIO_RETURN_ERR_CTX(flush_tx_buffer(), "tx::flush_tx_buffer");
@@ -1360,6 +1366,10 @@ LLCC68::hal_gfsk_async_flush(gfsk_parameters_t params) {
   packet_params.payload_length = static_cast<uint8_t>(data().tx_xfer_size);
   APP_RADIO_RETURN_ERR_CTX(set_gfsk_packet_params(packet_params),
                            "gfsk_tx::set_packet_params");
+  auto chip_type_ = hal_get_chip_type();
+  APP_RADIO_RETURN_ERR_CTX(chip_type_, "gfsk_tx::get_chip_type");
+  APP_RADIO_RETURN_ERR_CTX(hal_set_output_power(*chip_type_, params.tx_params),
+                           "gfsk_tx::hal_set_output_power");
   APP_RADIO_RETURN_ERR_CTX(set_buffer_base_address(),
                            "gfsk_tx::set_buffer_base_address");
   APP_RADIO_RETURN_ERR_CTX(flush_tx_buffer(), "gfsk_tx::flush_tx_buffer");