samples: Bluetooth: observer: Move Zephyr Controller Kconfigs

Move Zephyr Controller Kconfigs to overlay file.

Signed-off-by: Vinayak Kariappa Chettimada <[email protected]>

Author: cvinayak

samples/bluetooth/observer/README.rst

@@ -16,6 +16,13 @@ If the used Bluetooth Low Energy Controller supports Extended Scanning, you may
 enable :kconfig:option:`CONFIG_BT_EXT_ADV` in the project configuration file. Refer to the
 project configuration file for further details.
 
+Building Extended Scanning support with Zephyr Controller
+*********************************************************
+
+.. code-block:: console
+
+   west build -b nrf52840dk/nrf52840 . -- -DCONF_FILE='prj_extended.conf' -DEXTRA_CONF_FILE='overlay-bt_ll_sw_split.conf'
+
 Building Extended Scanning support for BBC Micro Bit board
 **********************************************************
 

samples/bluetooth/observer/overlay-bt_ll_sw_split.conf

@@ -0,0 +1,20 @@
+# Zephyr Bluetooth LE Controller needs 16 event buffers to generate Extended
+# Advertising Report for receiving the complete 1650 bytes of data
+CONFIG_BT_BUF_EVT_RX_COUNT=16
+
+# Use Zephyr Bluetooth Low Energy Controller implementation
+CONFIG_BT_LL_SW_SPLIT=y
+
+# Enable Coded PHY support in Zephyr Controller, if testing 4 advertising sets
+CONFIG_BT_CTLR_PHY_CODED=y
+
+# Set maximum scan data length for Extended Scanning in Bluetooth LE Controller
+CONFIG_BT_CTLR_SCAN_DATA_LEN_MAX=1650
+
+# Increase Zephyr Bluetooth LE Controller Rx buffer to receive complete chain
+# of PDUs
+CONFIG_BT_CTLR_RX_BUFFERS=9
+
+# Code size reduction
+CONFIG_ISR_TABLES_LOCAL_DECLARATION=y
+CONFIG_LTO=y

samples/bluetooth/observer/prj_extended.conf

@@ -4,14 +4,3 @@ CONFIG_BT_OBSERVER=y
 # Enable Extended Scanning
 CONFIG_BT_EXT_ADV=y
 CONFIG_BT_EXT_SCAN_BUF_SIZE=1650
-
-# Zephyr Bluetooth LE Controller needs 16 event buffers to generate Extended
-# Advertising Report for receiving the complete 1650 bytes of data
-CONFIG_BT_BUF_EVT_RX_COUNT=16
-
-# Set maximum scan data length for Extended Scanning in Bluetooth LE Controller
-CONFIG_BT_CTLR_SCAN_DATA_LEN_MAX=1650
-
-# Increase Zephyr Bluetooth LE Controller Rx buffer to receive complete chain
-# of PDUs
-CONFIG_BT_CTLR_RX_BUFFERS=9

samples/bluetooth/observer/sample.yaml

@@ -20,9 +20,17 @@ tests:
     platform_allow:
       - qemu_cortex_m3
       - qemu_x86
-      - nrf52840dk/nrf52840
     integration_platforms:
       - qemu_cortex_m3
+  sample.bluetooth.observer.extended.bt_ll_sw_split:
+    harness: bluetooth
+    tags: bluetooth
+    extra_args:
+      - CONF_FILE="prj_extended.conf"
+      - EXTRA_CONF_FILE="overlay-bt_ll_sw_split.conf"
+    platform_allow:
+      - nrf52840dk/nrf52840
+    integration_platforms:
       - nrf52840dk/nrf52840
   sample.bluetooth.observer.extended.bbc_microbit.bt_ll_sw_split:
     harness: bluetooth