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feat(RadioInterface): Tx power gain calculation rework (#6796)

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- Rename REGULATORY_GAIN_LORA to TX_GAIN_LORA
- Move gain-based Tx power clamping from RadioInterface::applyModemConfig() to RadioInterface::limitPower()
  - User-configured Tx power now matches the Tx power out of the device connector
- Re-order [LoRa Chip]Interface.cpp limitPower() to take place before the final Tx power clamping so we clamp based on the pre-PA Tx power rather than user-configured Tx power

Tested on XIAO BLE variant.

Signed-off-by: Andrew Yong <me@ndoo.sg>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
This commit is contained in:
Andrew Yong
2025-05-25 18:26:31 +07:00
committed by GitHub
parent 9b69c2a9af
commit e29588d2e2
8 changed files with 24 additions and 19 deletions
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8
src/configuration.h
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@@ -80,10 +80,10 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
// Override user saved region, for producing region-locked builds
// #define REGULATORY_LORA_REGIONCODE meshtastic_Config_LoRaConfig_RegionCode_SG_923
// Total system gain in dBm to subtract from Tx power to remain within regulatory ERP limit for non-licensed operators
// This value should be set in variant.h and is PA gain + antenna gain (if system ships with an antenna)
#ifndef REGULATORY_GAIN_LORA
#define REGULATORY_GAIN_LORA 0
// Total system gain in dBm to subtract from Tx power to remain within regulatory and Tx PA limits
// This value should be set in variant.h and is PA gain + antenna gain (if variant has a non-removable antenna)
#ifndef TX_GAIN_LORA
#define TX_GAIN_LORA 0
#endif
// -----------------------------------------------------------------------------