drivers: bluetooth: hci: siwx91x: add RF power config
Add vendor-specific RF power mode configuration during HCI setup
for SiLabs SiWx91x devices. This configures the BLE TX power
index in the controller's RF subsystem.
The implementation sends a vendor command (OCF 0x0006) with
protocol mode (2) and power index (RSI_BLE_PWR_INX) during the
setup phase. This ensures proper RF power configuration before
normal Bluetooth operations begin.
Technical details:
- Uses bt_hci_cmd_alloc() with manual HCI header construction
- Command opcode: 0xFC06 (OGF=0x3F, OCF=0x0006)
- Parameters: protocol_mode=2, power_index from RSI_BLE_PWR_INX
- Executed during bt_hci_setup callback
Signed-off-by: Arun Kumar Nagelly <arnagell@silabs.com>
2 files changed
