bluetooth: controller: hci_driver: Add option to enable power class 1

This KConfig enables the feature bit for power class 1 in
the controller.

Required if a customer wants to transmit at >10dBm

Signed-off-by: Sean Madigan <[email protected]>
(cherry picked from commit d8f5a50)
Signed-off-by: Vinayak Kariappa Chettimada <[email protected]>

Author: sean-madigan

subsys/bluetooth/controller/Kconfig

@@ -550,5 +550,13 @@ config BT_CTLR_SDC_CIS_SUBEVENT_LENGTH_US
 	  If this parameter is set to zero, the subevent length
 	  is chosen by the controller.
 
+config BT_CTLR_SDC_LE_POWER_CLASS_1
+	bool "Device supports transmitting at LE Power Class 1 level"
+	default y if BT_CTLR_TX_PWR_ANTENNA >= 10
+	help
+	  This should be set if the device supports transmitting above +10dBm.
+	  See Bluetooth Core Specification, Vol 6, Part A, Section 3
+	  Transmitter Characteristics for more information.
+
 endmenu
 endif  # BT_LL_SOFTDEVICE

subsys/bluetooth/controller/hci_driver.c

@@ -828,6 +828,13 @@ static int configure_supported_features(void)
 		}
 	}
 
+	if (IS_ENABLED(CONFIG_BT_CTLR_SDC_LE_POWER_CLASS_1)) {
+		err = sdc_support_le_power_class_1();
+		if (err) {
+			return -ENOTSUP;
+		}
+	}
+
 	return 0;
 }