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boards: nrf52_bsim: Add support for using UART as HCI

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Add support for using an UART instead of the native controller. This is
accomplished with a custom DTS overlay for the tests that require it.

Signed-off-by: Johan Hedberg <johan.hedberg@gmail.com>
This commit is contained in:
Johan Hedberg 2024-05-08 11:30:15 +03:00 • committed by Anas Nashif
commit db753c1474
4 changed files with 15 additions and 4 deletions
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7
boards/native/nrf_bsim/nrf52_bsim.dts
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@ -38,8 +38,6 @@
zephyr,flash = &flash0; zephyr,flash = &flash0;
/* UART used by the BT controller UART HCI driver by default: */ /* UART used by the BT controller UART HCI driver by default: */
zephyr,bt-c2h-uart = &uart1; zephyr,bt-c2h-uart = &uart1;
/* UART used by the BT host UART HCI driver by default: */
zephyr,bt-uart = &uart1;
}; };
soc { soc {
@ -117,4 +115,9 @@
pinctrl-1 = <&uart1_sleep>; pinctrl-1 = <&uart1_sleep>;
pinctrl-names = "default", "sleep"; pinctrl-names = "default", "sleep";
hw-flow-control; hw-flow-control;
bt_hci_uart: bt_hci_uart {
compatible = "zephyr,bt-hci-uart";
status = "okay";
};
}; };

4
samples/bluetooth/hci_uart_async/boards/nrf52_bsim.overlay
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@ -1 +1,3 @@
/* Purposely empty. To avoid using the one provided by the application */ &bt_hci_uart {
status = "disabled";
};

3
tests/bsim/bluetooth/hci_uart/compile.sh
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@ -10,7 +10,8 @@ set -ue
source ${ZEPHYR_BASE}/tests/bsim/compile.source source ${ZEPHYR_BASE}/tests/bsim/compile.source
app=tests/bsim/bluetooth/ll/conn conf_file=prj_split_hci_uart.conf compile app=tests/bsim/bluetooth/ll/conn conf_file=prj_split_hci_uart.conf \
cmake_extra_args=-DEXTRA_DTC_OVERLAY_FILE=hci-uart.overlay compile
app=samples/bluetooth/hci_uart compile app=samples/bluetooth/hci_uart compile
app=samples/bluetooth/hci_uart_async compile app=samples/bluetooth/hci_uart_async compile

5
tests/bsim/bluetooth/ll/conn/hci-uart.overlay Normal file
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@ -0,0 +1,5 @@
/ {
chosen {
zephyr,bt-hci = &bt_hci_uart;
};
};