| :orphan: |
| |
| .. |
| See |
| https://docs.zephyrproject.org/latest/releases/index.html#migration-guides |
| for details of what is supposed to go into this document. |
| |
| .. _migration_4.2: |
| |
| Migration guide to Zephyr v4.2.0 |
| ################################ |
| |
| This document describes the changes required when migrating your application from Zephyr v4.1.0 to |
| Zephyr v4.2.0. |
| |
| Any other changes (not directly related to migrating applications) can be found in |
| the :ref:`release notes<zephyr_4.2>`. |
| |
| .. contents:: |
| :local: |
| :depth: 2 |
| |
| Build System |
| ************ |
| |
| * HWMv1 support has been removed, any out-of-tree boards or SoCs in HWMv1 format must be migrated |
| to :ref:`HWMv2 <hw_model_v2>` to work with Zephyr v4.2 onwards. |
| |
| Kernel |
| ****** |
| |
| Boards |
| ****** |
| |
| * All boards based on Nordic ICs that used the ``nrfjprog`` Nordic command-line |
| tool for flashing by default have been modified to instead default to the new |
| nRF Util (``nrfutil``) tool. This means that you may need to `install nRF Util |
| <https://www.nordicsemi.com/Products/Development-tools/nrf-util>`_ or, if you |
| prefer to continue using ``nrfjprog``, you can do so by invoking west while |
| specifying the runner: ``west flash -r nrfjprog``. The full documentation for |
| nRF Util can be found |
| `here <https://docs.nordicsemi.com/bundle/nrfutil/page/README.html>`_. |
| |
| * All boards based on a Nordic IC of the nRF54L series now default to not |
| erasing any part of the internal storage when flashing. If you'd like to |
| revert to the previous default of erasing the pages that will be written to by |
| the firmware to be flashed you can set the new ``--erase-mode`` command-line |
| switch when invoking ``west flash`` to ``ranges``. |
| Note that RRAM on nRF54L devices is not physically paged, and paging is |
| only artificially provided, with a page size of 4096 bytes, for an easier |
| transition of nRF52 software to nRF54L devices. |
| |
| * The config option :kconfig:option:`CONFIG_NATIVE_POSIX_SLOWDOWN_TO_REAL_TIME` has been deprecated |
| in favor of :kconfig:option:`CONFIG_NATIVE_SIM_SLOWDOWN_TO_REAL_TIME`. |
| |
| * The DT binding :dtcompatible:`zephyr,native-posix-cpu` has been deprecated in favor of |
| :dtcompatible:`zephyr,native-sim-cpu`. |
| |
| * Zephyr now supports version 1.11.6 of the :zephyr:board:`neorv32`. NEORV32 processor (SoC) |
| implementations need to be updated to this version to be compatible with Zephyr v4.2.0. |
| |
| * The :zephyr:board:`neorv32` now targets NEORV32 processor (SoC) templates via board variants. The |
| old ``neorv32`` board target is now named ``neorv32/neorv32/up5kdemo``. |
| |
| * ``arduino_uno_r4_minima``, ``arduino_uno_r4_wifi``, and ``mikroe_clicker_ra4m1`` have migrated to |
| new FSP-based configurations. |
| While there are no major functional changes, the device tree structure has been significantly revised. |
| The following device tree bindings are now removed: |
| ``renesas,ra-gpio``, ``renesas,ra-uart-sci``, ``renesas,ra-pinctrl``, |
| ``renesas,ra-clock-generation-circuit``, and ``renesas,ra-interrupt-controller-unit``. |
| Instead, use the following replacements: |
| - :dtcompatible:`renesas,ra-gpio-ioport` |
| - :dtcompatible:`renesas,ra-sci-uart` |
| - :dtcompatible:`renesas,ra-pinctrl-pfs` |
| - :dtcompatible:`renesas,ra-cgc-pclk-block` |
| |
| * Nucleo WBA52CG board (``nucleo_wba52cg``) is not supported anymore since it is NRND |
| (Not Recommended for New Design) and it is not supported anymore in the STM32CubeWBA from |
| version 1.1.0 (July 2023). The migration to :zephyr:board:`nucleo_wba55cg` (``nucleo_wba55cg``) |
| is recommended and it could be done without any change. |
| |
| * Espressif boards ``esp32_devkitc_wroom`` and ``esp32_devkitc_wrover`` shared almost identical features. |
| The differences are covered by the Kconfig options so both boards were merged into ``esp32_devkitc``. |
| |
| * STM32 boards should now add OpenOCD programming support by including ``openocd-stm32.board.cmake`` |
| instead of ``openocd.board.cmake``. The ``openocd-stm32.board.cmake`` file extends the default |
| OpenOCD runner with manufacturer-specific configuration like STM32 mass erase commands. |
| |
| * STM32N6570-DK boards's default variant (``stm32n6570_dk/stm32n657xx``) is now supposed to be a |
| chainloaded application and should be built using ``--sysbuild``. The old default, |
| which built applications to run as First Stage BootLoader, is now available as a dedicated |
| variant (``stm32n6570_dk/stm32n657xx/fsbl``) that must be selected explicitly. |
| See board documentation for more information about these variants. |
| |
| * STM32 boards that embed TF-M BL2 boot stage (``b_u585i_iot02a//ns``, ``nucleo_l552ze_q//ns`` |
| and ``stm32l562e_dk//ns``) do not embed HW crypto accelerator drivers in BL2 as they previously |
| did, now relying on Mbed TLS software implementation. This is related to the upgrade to TF-M |
| v2.2. HW crypto accelerators are still supported in TF-M, but only in the runtime secure firmware. |
| |
| Device Drivers and Devicetree |
| ***************************** |
| |
| .. zephyr-keep-sorted-start re(^\w) |
| |
| Audio |
| ===== |
| |
| * The binding file for :dtcompatible:`cirrus,cs43l22` has been renamed to have a name |
| matching the compatible string. |
| |
| Counter |
| ======= |
| |
| * ``counter_native_posix`` has been renamed ``counter_native_sim``, and with it its |
| kconfig options and DT binding. :dtcompatible:`zephyr,native-posix-counter` has been deprecated |
| in favor of :dtcompatible:`zephyr,native-sim-counter`. |
| And :kconfig:option:`CONFIG_COUNTER_NATIVE_POSIX` and its related options with |
| :kconfig:option:`CONFIG_COUNTER_NATIVE_SIM` (:github:`86616`). |
| |
| DAI |
| === |
| |
| * Renamed the devicetree property ``dai_id`` to ``dai-id``. |
| * Renamed the devicetree property ``afe_name`` to ``afe-name``. |
| * Renamed the devicetree property ``agent_disable`` to ``agent-disable``. |
| * Renamed the devicetree property ``ch_num`` to ``ch-num``. |
| * Renamed the devicetree property ``mono_invert`` to ``mono-invert``. |
| * Renamed the devicetree property ``quad_ch`` to ``quad-ch``. |
| * Renamed the devicetree property ``int_odd`` to ``int-odd``. |
| |
| DMA |
| === |
| |
| * Renamed the devicetree property ``nxp,a_on`` to ``nxp,a-on``. |
| * Renamed the devicetree property ``dma_channels`` to ``dma-channels``. |
| * The binding files for Xilinx DMA controllers have been renamed to use the proper vendor prefix |
| (``xlnx`` instead of ``xilinx``) and to match their compatible string. |
| |
| Devicetree |
| ========== |
| |
| * Many of the vendor-specific and arch-specific files that were in dts/common have been moved |
| to more specific locations. Therefore, any dts files which ``#include <common/some_file.dtsi>`` |
| a file from in the zephyr tree will need to be changed to just ``#include <some_file.dtsi>``. |
| |
| * Silicon Labs SoC-level dts files for Series 2 have been reorganized in subdirectories per device |
| superfamily. Therefore, any dts files for boards that use Series 2 SoCs will need to change their |
| include from ``#include <silabs/some_soc.dtsi>`` to ``#include <silabs/xg2[1-9]/some_soc.dtsi>``. |
| |
| * The :c:macro:`DT_ENUM_HAS_VALUE` and :c:macro:`DT_INST_ENUM_HAS_VALUE` macros are now |
| checking all values, when used on an array, not just the first one. |
| |
| * Property names in devicetree and bindings use hyphens(``-``) as separators, and replacing |
| all previously used underscores(``_``). For local code, you can migrate property names in |
| bindings to use hyphens by running the ``scripts/utils/migrate_bindings_style.py`` script. |
| |
| Display |
| ======= |
| |
| * On STM32 devices, the LTDC driver (:dtcompatible:`st,stm32-ltdc`) RGB565 format |
| ``PIXEL_FORMAT_RGB565`` has been replaced by ``PIXEL_FORMAT_BGR565`` to match |
| the format expected by Zephyr. This change ensures proper behavior of both |
| display and video capture samples. |
| |
| EEPROM |
| ======== |
| |
| * :dtcompatible:`ti,tmp116-eeprom` has been renamed to :dtcompatible:`ti,tmp11x-eeprom` because it |
| supports both tmp117 and tmp119. |
| |
| Enhanced Serial Peripheral Interface (eSPI) |
| =========================================== |
| |
| * Renamed the devicetree property ``io_girq`` to ``io-girq``. |
| * Renamed the devicetree property ``vw_girqs`` to ``vw-girqs``. |
| * Renamed the devicetree property ``pc_girq`` to ``pc-girq``. |
| * Renamed the devicetree property ``poll_timeout`` to ``poll-timeout``. |
| * Renamed the devicetree property ``poll_interval`` to ``poll-interval``. |
| * Renamed the devicetree property ``consec_rd_timeout`` to ``consec-rd-timeout``. |
| * Renamed the devicetree property ``sus_chk_delay`` to ``sus-chk-delay``. |
| * Renamed the devicetree property ``sus_rsm_interval`` to ``sus-rsm-interval``. |
| |
| Entropy |
| ======= |
| |
| * ``fake_entropy_native_posix`` has been renamed ``fake_entropy_native_sim``, and with it its |
| kconfig options and DT binding. :dtcompatible:`zephyr,native-posix-rng` has been deprecated |
| in favor of :dtcompatible:`zephyr,native-sim-rng`. |
| And :kconfig:option:`CONFIG_FAKE_ENTROPY_NATIVE_POSIX` and its related options with |
| :kconfig:option:`CONFIG_FAKE_ENTROPY_NATIVE_SIM` (:github:`86615`). |
| |
| Ethernet |
| ======== |
| |
| * Removed Kconfig option ``ETH_STM32_HAL_MII`` (:github:`86074`). |
| PHY interface type is now selected via the ``phy-connection-type`` property in the device tree. |
| |
| * The :dtcompatible:`st,stm32-ethernet` driver now requires the ``phy-handle`` phandle to be |
| set to the according PHY node in the device tree (:github:`87593`). |
| |
| * The Kconfig options ``ETH_STM32_HAL_PHY_ADDRESS``, ``ETH_STM32_CARRIER_CHECK``, |
| ``ETH_STM32_CARRIER_CHECK_RX_IDLE_TIMEOUT_MS``, ``ETH_STM32_AUTO_NEGOTIATION_ENABLE``, |
| ``ETH_STM32_SPEED_10M``, ``ETH_STM32_MODE_HALFDUPLEX`` have been removed, as they are no longer |
| needed, and the driver now uses the ethernet phy api to communicate with the phy driver, which |
| is responsible for configuring the phy settings (:github:`87593`). |
| |
| * ``ethernet_native_posix`` has been renamed ``ethernet_native_tap``, and with it its |
| kconfig options: :kconfig:option:`CONFIG_ETH_NATIVE_POSIX` and its related options have been |
| deprecated in favor of :kconfig:option:`CONFIG_ETH_NATIVE_TAP` (:github:`86578`). |
| |
| * NuMaker Ethernet driver ``eth_numaker.c`` now supports ``gen_random_mac``, |
| and the EMAC data flash feature has been removed (:github:`87953`). |
| |
| * The enum ``ETHERNET_DSA_MASTER_PORT`` and ``ETHERNET_DSA_SLAVE_PORT`` in |
| :zephyr_file:`include/zephyr/net/ethernet.h` have been renamed |
| to ``ETHERNET_DSA_CONDUIT_PORT`` and ``ETHERNET_DSA_USER_PORT``. |
| |
| * Enums for the Ethernet speed have been renamed to be more independent of the used medium. |
| ``LINK_HALF_10BASE_T``, ``LINK_FULL_10BASE_T``, ``LINK_HALF_100BASE_T``, ``LINK_FULL_100BASE_T``, |
| ``LINK_HALF_1000BASE_T``, ``LINK_FULL_1000BASE_T``, ``LINK_FULL_2500BASE_T`` and |
| ``LINK_FULL_5000BASE_T`` have been renamed to :c:enumerator:`LINK_HALF_10BASE`, |
| :c:enumerator:`LINK_FULL_10BASE`, :c:enumerator:`LINK_HALF_100BASE`, |
| :c:enumerator:`LINK_FULL_100BASE`, :c:enumerator:`LINK_HALF_1000BASE`, |
| :c:enumerator:`LINK_FULL_1000BASE`, :c:enumerator:`LINK_FULL_2500BASE` and |
| :c:enumerator:`LINK_FULL_5000BASE`. |
| ``ETHERNET_LINK_10BASE_T``, ``ETHERNET_LINK_100BASE_T``, ``ETHERNET_LINK_1000BASE_T``, |
| ``ETHERNET_LINK_2500BASE_T`` and ``ETHERNET_LINK_5000BASE_T`` have been renamed to |
| :c:enumerator:`ETHERNET_LINK_10BASE`, :c:enumerator:`ETHERNET_LINK_100BASE`, |
| :c:enumerator:`ETHERNET_LINK_1000BASE`, :c:enumerator:`ETHERNET_LINK_2500BASE` and |
| :c:enumerator:`ETHERNET_LINK_5000BASE` respectively (:github:`87194`). |
| |
| * ``ETHERNET_CONFIG_TYPE_LINK``, ``ETHERNET_CONFIG_TYPE_DUPLEX``, ``ETHERNET_CONFIG_TYPE_AUTO_NEG`` |
| and the related ``NET_REQUEST_ETHERNET_SET_LINK``, ``NET_REQUEST_ETHERNET_SET_DUPLEX``, |
| ``NET_REQUEST_ETHERNET_SET_AUTO_NEGOTIATION`` have been removed. :c:func:`phy_configure_link` |
| together with :c:func:`net_eth_get_phy` should be used instead to configure the link |
| (:github:`90652`). |
| |
| * :c:func:`phy_configure_link` got a ``flags`` parameter. Set it to ``0`` to preserve the old |
| behavior (:github:`91354`). |
| |
| Flash |
| ===== |
| |
| * Renamed the file from ``flash_hp_ra.h`` to ``soc_flash_renesas_ra_hp.h``. |
| * Renamed the file from ``flash_hp_ra.c`` to ``soc_flash_renesas_ra_hp.c``. |
| * Renamed the file from ``flash_hp_ra_ex_op.c`` to ``soc_flash_renesas_ra_hp_ex_op.c``. |
| |
| * The Flash HP Renesas RA dual bank mode Kconfig symbol :kconfig:option:`CONFIG_DUAL_BANK_MODE` |
| has been removed. |
| * The Flash HP Renesas RA Kconfig symbol :kconfig:option:`CONFIG_RA_FLASH_HP` |
| has been renamed to :kconfig:option:`CONFIG_SOC_FLASH_RENESAS_RA_HP`. |
| * The Flash HP Renesas RA write protect Kconfig symbol :kconfig:option:`CONFIG_FLASH_RA_WRITE_PROTECT` |
| has been renamed to :kconfig:option:`CONFIG_FLASH_RENESAS_RA_HP_WRITE_PROTECT`. |
| |
| * Separate the file ``renesas,ra-nv-flash.yaml`` into 2 files ``renesas,ra-nv-code-flash.yaml`` |
| and ``renesas,ra-nv-data-flash.yaml``. |
| * Separate the ``compatible`` from ``renesas,ra-nv-flash`` to :dtcompatible:`renesas,ra-nv-code-flash.yaml` |
| and :dtcompatible:`renesas,ra-nv-data-flash.yaml`. |
| |
| GPIO |
| ==== |
| |
| * To support the RP2350B, which has many pins, the Raspberry Pi-GPIO configuration has |
| been changed. The previous role of :dtcompatible:`raspberrypi,rpi-gpio` has been migrated to |
| :dtcompatible:`raspberrypi,rpi-gpio-port`, and :dtcompatible:`raspberrypi,rpi-gpio` is |
| now left as a placeholder and mapper. |
| The labels have also been changed along, so no changes are necessary for regular use. |
| * ``arduino-nano-header-r3`` is renamed to :dtcompatible:`arduino-nano-header`. |
| Because the R3 comes from the Arduino UNO R3, which has changed the connector from |
| the former version, and is unrelated to the Arduino Nano. |
| * Moved file ``include/zephyr/dt-bindings/gpio/nordic-npm1300-gpio.h`` to |
| :zephyr_file:`include/zephyr/dt-bindings/gpio/nordic-npm13xx-gpio.h` and renamed all instances of |
| ``NPM1300`` to ``NPM13XX`` in the defines |
| * Renamed ``CONFIG_GPIO_NPM1300`` to :kconfig:option:`CONFIG_GPIO_NPM13XX`, |
| ``CONFIG_GPIO_NPM1300_INIT_PRIORITY`` to :kconfig:option:`CONFIG_GPIO_NPM13XX_INIT_PRIORITY` |
| |
| I2S |
| === |
| * The :dtcompatible:`nxp,mcux-i2s` driver added property ``mclk-output``. Set this property to |
| * configure the MCLK signal as an output. Older driver versions used the macro |
| * ``I2S_OPT_BIT_CLK_SLAVE`` to configure the MCLK signal direction. (:github:`88554`) |
| |
| LED |
| === |
| |
| * Renamed ``CONFIG_LED_NPM1300`` to :kconfig:option:`CONFIG_LED_NPM13XX` |
| |
| MFD |
| === |
| |
| * Moved file ``include/zephyr/drivers/mfd/npm1300.h`` to :zephyr_file:`include/zephyr/drivers/mfd/npm13xx.h` |
| and renamed all instances of ``npm1300``/``NPM1300`` to ``npm13xx``/``NPM13XX`` in the enums and |
| function names |
| * Renamed ``CONFIG_MFD_NPM1300`` to :kconfig:option:`CONFIG_MFD_NPM13XX`, |
| ``CONFIG_MFD_NPM1300_INIT_PRIORITY`` to :kconfig:option:`CONFIG_MFD_NPM13XX_INIT_PRIORITY` |
| |
| Misc |
| ==== |
| |
| * Moved file ``drivers/memc/memc_nxp_flexram.h`` to |
| :zephyr_file:`include/zephyr/drivers/misc/flexram/nxp_flexram.h` so that the |
| file can be included using ``<zephyr/drivers/misc/flexram/nxp_flexram.h>``. |
| Modification to CMakeList.txt to use include this driver is no longer |
| required. |
| * All memc_flexram_* namespaced things including kconfigs and C API |
| have been changed to just flexram_*. |
| |
| * Select ``CONFIG_ETHOS_U`` instead ``CONFIG_ARM_ETHOS_U`` to enable Ethos-U NPU driver. |
| * Rename all configs that have prefix ``CONFIG_ARM_ETHOS_U_`` to ``CONFIG_ETHOS_U_``. |
| |
| Modem |
| ===== |
| |
| * Removed Kconfig option :kconfig:option:`CONFIG_MODEM_CELLULAR_CMUX_MAX_FRAME_SIZE` in favor of |
| :kconfig:option:`CONFIG_MODEM_CMUX_WORK_BUFFER_SIZE` and :kconfig:option:`CONFIG_MODEM_CMUX_MTU`. |
| |
| Regulator |
| ========= |
| |
| * Moved file ``include/zephyr/dt-bindings/regulator/npm1300.h`` to |
| :zephyr_file:`include/zephyr/dt-bindings/regulator/npm13xx.h` and renamed all instances of |
| ``NPM1300`` to ``NPM13XX`` in the defines |
| * Renamed ``CONFIG_REGULATOR_NPM1300`` to :kconfig:option:`CONFIG_REGULATOR_NPM13XX`, |
| ``CONFIG_REGULATOR_NPM1300_COMMON_INIT_PRIORITY`` to :kconfig:option:`REGULATOR_NPM13XX_COMMON_INIT_PRIORITY`, |
| ``CONFIG_REGULATOR_NPM1300_INIT_PRIORITY`` to :kconfig:option:`CONFIG_REGULATOR_NPM13XX_INIT_PRIORITY` |
| * :dtcompatible:`nordic,npm1300-regulator` BUCK and LDO node GPIO properties are now specified as an |
| integer array without a GPIO controller, removing the requirement for a |
| :dtcompatible:`nordic,npm1300-gpio` node to be present and enabled for GPIO control of the output |
| rails. For example, ``enable-gpios = <&pmic_gpios 3 GPIO_ACTIVE_LOW>;`` is now specified as |
| ``enable-gpio-config = <3 GPIO_ACTIVE_LOW>;``. |
| |
| SPI |
| === |
| |
| * Renamed ``CONFIG_SPI_MCUX_LPSPI`` to :kconfig:option:`CONFIG_SPI_NXP_LPSPI`, |
| and similar for any child configs for that driver, including |
| :kconfig:option:`CONFIG_SPI_NXP_LPSPI_DMA` and :kconfig:option:`CONFIG_SPI_NXP_LPSPI_CPU`. |
| * Renamed the device tree property ``port_sel`` to ``port-sel``. |
| * Renamed the device tree property ``chip_select`` to ``chip-select``. |
| * The binding file for :dtcompatible:`andestech,atcspi200` has been renamed to have a name |
| matching the compatible string. |
| |
| Sensors |
| ======= |
| |
| * ``ltr`` vendor prefix has been renamed to ``liteon``, and with it the |
| :dtcompatible:`ltr,f216a` name has been replaced by :dtcompatible:`liteon,ltrf216a`. |
| The choice :kconfig:option:`DT_HAS_LTR_F216A_ENABLED` has been replaced with |
| :kconfig:option:`DT_HAS_LITEON_LTRF216A_ENABLED` (:github:`85453`) |
| |
| * :dtcompatible:`ti,tmp116` has been renamed to :dtcompatible:`ti,tmp11x` because it supports |
| tmp116, tmp117 and tmp119. |
| |
| * :dtcompatible:`meas,ms5837` has been replaced by :dtcompatible:`meas,ms5837-30ba` |
| and :dtcompatible:`meas,ms5837-02ba`. In order to use one of the two variants, the |
| status property needs to be used as well. |
| |
| * The :dtcompatible:`we,wsen-itds` driver has been renamed to |
| :dtcompatible:`we,wsen-itds-2533020201601`. |
| The Device Tree can be configured as follows: |
| |
| .. code-block:: devicetree |
| |
| &i2c0 { |
| itds:itds-2533020201601@19 { |
| compatible = "we,wsen-itds-2533020201601"; |
| reg = <0x19>; |
| odr = "400"; |
| op-mode = "high-perf"; |
| power-mode = "normal"; |
| events-interrupt-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>; |
| drdy-interrupt-gpios = < &gpio1 2 GPIO_ACTIVE_HIGH >; |
| }; |
| }; |
| |
| * The binding file for :dtcompatible:`raspberrypi,pico-temp.yaml` has been renamed to have a name |
| matching the compatible string. |
| |
| * Moved file ``include/zephyr/drivers/sensor/npm1300_charger.h`` to |
| :zephyr_file:`include/zephyr/drivers/sensor/npm13xx_charger.h` and renamed all instances of |
| ``NPM1300`` to ``NPM13XX`` in the enums |
| |
| * Renamed ``CONFIG_NPM1300_CHARGER`` to :kconfig:option:`CONFIG_NPM13XX_CHARGER` |
| |
| Serial |
| ======= |
| |
| * ``uart_native_posix`` has been renamed ``uart_native_pty``, and with it its |
| kconfig options and DT binding. :dtcompatible:`zephyr,native-posix-uart` has been deprecated |
| in favor of :dtcompatible:`zephyr,native-pty-uart`. |
| :kconfig:option:`CONFIG_UART_NATIVE_POSIX` and its related options with |
| :kconfig:option:`CONFIG_UART_NATIVE_PTY`. |
| The choice :kconfig:option:`CONFIG_NATIVE_UART_0` has been replaced with |
| :kconfig:option:`CONFIG_UART_NATIVE_PTY_0`, but now, it is also possible to select if a UART is |
| connected to the process stdin/out instead of a PTY at runtime with the command line option |
| ``--<uart_name>_stdinout``. |
| :kconfig:option:`CONFIG_NATIVE_UART_AUTOATTACH_DEFAULT_CMD` has been replaced with |
| :kconfig:option:`CONFIG_UART_NATIVE_PTY_AUTOATTACH_DEFAULT_CMD`. |
| :kconfig:option:`CONFIG_UART_NATIVE_WAIT_PTS_READY_ENABLE` has been deprecated. The functionality |
| it enabled is now always enabled as there is no drawbacks from it. |
| :kconfig:option:`CONFIG_UART_NATIVE_POSIX_PORT_1_ENABLE` has been deprecated. This option does |
| nothing now. Instead users should instantiate as many :dtcompatible:`zephyr,native-pty-uart` nodes |
| as native PTY UART instances they want. (:github:`86739`) |
| |
| Stepper |
| ======= |
| |
| * Refactored the ``stepper_enable(const struct device * dev, bool enable)`` function to |
| :c:func:`stepper_enable` & :c:func:`stepper_disable`. |
| |
| Timer |
| ===== |
| |
| * ``native_posix_timer`` has been renamed ``native_sim_timer``, and so its kconfig option |
| :kconfig:option:`CONFIG_NATIVE_POSIX_TIMER` has been deprecated in favor of |
| :kconfig:option:`CONFIG_NATIVE_SIM_TIMER`, (:github:`86612`). |
| |
| * :dtcompatible:`andestech,machine-timer`, :dtcompatible:`neorv32-machine-timer`, |
| :dtcompatible:`telink,machine-timer`, :dtcompatible:`lowrisc,machine-timer`, |
| :dtcompatible:`niosv-machine-timer`, and :dtcompatible:`scr,machine-timer` have |
| been unified under :dtcompatible:`riscv,machine-timer`. |
| |
| The addresses of both ``MTIME`` and ``MTIMECMP`` registers must now be explicitly |
| specified using the ``reg`` and ``reg-names`` properties. The ``reg-names`` property |
| is now **required**, and must list names corresponding one-to-one with each entry |
| in ``reg``. (:github:`84175` and :github:`89847`) |
| |
| Example: |
| |
| .. code-block:: devicetree |
| |
| mtimer: timer@d1000000 { |
| compatible = "riscv,machine-timer"; |
| interrupts-extended = <&cpu0_intc 7>; |
| reg = <0xd1000000 0x8 |
| 0xd1000008 0x8>; |
| reg-names = "mtime", "mtimecmp"; |
| }; |
| |
| * It is now possible to use a ``timebase-frequency`` property in the cpus DTS group to provide |
| the value for :kconfig:option:`CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC` instead of |
| using a value: :github:`91296` |
| |
| Video |
| ===== |
| |
| * 8 bit RAW Bayer formats BGGR8 / GBRG8 / GRBG8 / RGGB8 have been renamed by adding |
| a S prefix in front: |
| |
| ``VIDEO_PIX_FMT_BGGR8`` becomes :c:macro:`VIDEO_PIX_FMT_SBGGR8` |
| ``VIDEO_PIX_FMT_GBRG8`` becomes :c:macro:`VIDEO_PIX_FMT_SGBRG8` |
| ``VIDEO_PIX_FMT_GRBG8`` becomes :c:macro:`VIDEO_PIX_FMT_SGRBG8` |
| ``VIDEO_PIX_FMT_RGGB8`` becomes :c:macro:`VIDEO_PIX_FMT_SRGGB8` |
| |
| * On STM32 devices, the DCMI driver (:dtcompatible:`st,stm32-dcmi`) now relies on endpoint based |
| video-interfaces.yaml bindings for sensor interface properties (such as bus width and |
| synchronization signals). |
| Also the ``capture-rate`` property has been replaced by the usage of the frame interval API |
| :c:func:`video_set_frmival`. |
| See (:github:`89627`). |
| |
| * :c:enum:`video_endpoint_id` has been dropped. It is no longer a parameter in any video API. |
| |
| * :c:enum:`video_buf_type` has been added. It is a required parameter in the following video APIs: |
| :c:func:`set_stream`, :c:func:`video_stream_start`, :c:func:`video_stream_stop` |
| |
| * ``video_format.pitch`` has been updated to be set explicitly by the driver, a task formerly |
| required by the application. This update enables the application to correctly allocate a buffer |
| size on a per driver basis. Existing applications will not be broken by this change but can be |
| simplified as performed in the sample in the commit ``33dcbe37cfd3593e8c6e9cfd218dd31fdd533598``. |
| |
| * Samples and projects using the :ref:`native simulator <native_sim>` now require specifying the |
| ``--snippet`` :ref:`video-sw-generator <snippet-video-sw-generator>` to build correctly. |
| |
| * :c:func:`video_query_ctrl` now takes a single argument with the :c:struct:`video_ctrl_query`, |
| which now contains a ``video_ctrl_query.dev`` field to specify and read back which device is |
| being queried (:github:`91265`). |
| |
| Watchdog |
| ======== |
| * Renamed ``CONFIG_WDT_NPM1300`` to :kconfig:option:`CONFIG_WDT_NPM13XX`, |
| ``CONFIG_WDT_NPM1300_INIT_PRIORITY`` to :kconfig:option:`CONFIG_WDT_NPM13XX_INIT_PRIORITY` |
| |
| qSPI/oSPI/xSPI |
| ============== |
| |
| * On STM32 devices, external memories device tree descriptions for size and address are now split |
| in two separate properties to comply with specification recommendations. |
| |
| For instance, following external flash description ``reg = <0x70000000 DT_SIZE_M(64)>; /* 512 Mbits /`` |
| is changed to ``reg = <0>;`` ``size = <DT_SIZE_M(512)>; / 512 Mbits */``. |
| |
| Note that the property gives the actual size of the memory device in bits. |
| Previous mapping address information is now described in xspi, ospi or qspi nodes at SoC dtsi level. |
| |
| .. zephyr-keep-sorted-stop |
| |
| Bluetooth |
| ********* |
| |
| .. zephyr-keep-sorted-start re(^\w) |
| |
| Bluetooth Audio |
| =============== |
| |
| * ``CONFIG_BT_CSIP_SET_MEMBER_NOTIFIABLE`` has been renamed to |
| :kconfig:option:`CONFIG_BT_CSIP_SET_MEMBER_SIRK_NOTIFIABLE``. (:github:`86763``) |
| |
| * ``bt_csip_set_member_get_sirk`` has been removed. Use :c:func:`bt_csip_set_member_get_info` to get |
| the SIRK (and other information). (:github:`86996`) |
| |
| * ``BT_AUDIO_CONTEXT_TYPE_PROHIBITED`` has been renamed to |
| :c:enumerator:`BT_AUDIO_CONTEXT_TYPE_NONE`. (:github:`89506`) |
| |
| Bluetooth Classic |
| ================= |
| |
| * The parameters of HFP AG callback ``sco_disconnected`` of the struct :c:struct:`bt_hfp_ag_cb` |
| have been changed to SCO connection object ``struct bt_conn *sco_conn`` and the disconnection |
| reason of the SCO connection ``uint8_t reason``. |
| |
| Bluetooth HCI |
| ============= |
| |
| * The buffer types passing through the HCI driver interface are now indicated as H:4 encoded prefix |
| bytes as part of the buffer payload itself. The bt_buf_set_type() and bt_buf_get_type() functions |
| have been deprecated, but are still usable, with the exception that they can only be |
| called once per buffer. |
| |
| * The :c:func:`bt_hci_cmd_create` function has been deprecated and the new :c:func:`bt_hci_cmd_alloc` |
| function should be used instead. The new function takes no parameters because the command |
| sending functions have been updated to do the command header encoding. |
| |
| Bluetooth Host |
| ============== |
| |
| * The symbols ``BT_LE_CS_TONE_ANTENNA_CONFIGURATION_INDEX_<NUMBER>`` in |
| :zephyr_file:`include/zephyr/bluetooth/conn.h` have been renamed |
| to ``BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A<NUMBER>_B<NUMBER>``. |
| |
| * The ISO data paths are not longer setup automatically, and shall explicitly be setup and removed |
| by the application by calling :c:func:`bt_iso_setup_data_path` and |
| :c:func:`bt_iso_remove_data_path` respectively. (:github:`75549`) |
| |
| * ``BT_ISO_CHAN_TYPE_CONNECTED`` has been split into ``BT_ISO_CHAN_TYPE_CENTRAL`` and |
| ``BT_ISO_CHAN_TYPE_PERIPHERAL`` to better describe the type of the ISO channel, as behavior for |
| each role may be different. Any existing uses/checks for ``BT_ISO_CHAN_TYPE_CONNECTED`` |
| can be replaced with an ``||`` of the two. (:github:`75549`) |
| |
| * The ``struct _bt_gatt_ccc`` in :zephyr_file:`include/zephyr/bluetooth/gatt.h` has been renamed to |
| struct :c:struct:`bt_gatt_ccc_managed_user_data`. (:github:`88652`) |
| |
| * The macro ``BT_GATT_CCC_INITIALIZER`` in :zephyr_file:`include/zephyr/bluetooth/gatt.h` |
| has been renamed to :c:macro:`BT_GATT_CCC_MANAGED_USER_DATA_INIT`. (:github:`88652`) |
| |
| * The ``CONFIG_BT_ISO_TX_FRAG_COUNT`` Kconfig option was removed as it was completely unused. |
| Any uses of it can simply be removed. (:github:`89836`) |
| |
| .. zephyr-keep-sorted-stop |
| |
| Networking |
| ********** |
| |
| * The struct ``net_linkaddr_storage`` has been renamed to struct |
| :c:struct:`net_linkaddr` and the old struct ``net_linkaddr`` has been removed. |
| The struct :c:struct:`net_linkaddr` now contains space to store the link |
| address instead of having pointer that point to the link address. This avoids |
| possible dangling pointers when cloning struct :c:struct:`net_pkt`. This will |
| increase the size of struct :c:struct:`net_pkt` by 4 octets for IEEE 802.15.4, |
| but there is no size increase for other network technologies like Ethernet. |
| Note that any code that is using struct :c:struct:`net_linkaddr` directly, and |
| which has checks like ``if (lladdr->addr == NULL)``, will no longer work as expected |
| (because the addr is not a pointer) and must be changed to ``if (lladdr->len == 0)`` |
| if the code wants to check that the link address is not set. |
| |
| * TLS credential type ``TLS_CREDENTIAL_SERVER_CERTIFICATE`` was renamed to |
| more generic :c:enumerator:`TLS_CREDENTIAL_PUBLIC_CERTIFICATE` to better |
| reflect the purpose of this credential type. |
| |
| * The MQTT public API function :c:func:`mqtt_disconnect` has changed. The function |
| now accepts additional ``param`` parameter to support MQTT 5.0 case. The parameter |
| is optional and not used with older MQTT versions - MQTT 3.1.1 users should pass |
| NULL as an argument. |
| |
| * The ``AF_PACKET/SOCK_RAW/IPPROTO_RAW`` socket combination is no longer supported, |
| as ``AF_PACKET`` sockets should only accept IEEE 802.3 protocol numbers. As an |
| alternative, ``AF_PACKET/SOCK_DGRAM/ETH_P_ALL`` or ``AF_INET(6)/SOCK_RAW/IPPROTO_IP`` |
| sockets can be used, depending on the actual use case. |
| |
| * The HTTP server now respects the configured ``_concurrent`` and ``_backlog`` values. Check that |
| you provide applicable values to :c:macro:`HTTP_SERVICE_DEFINE_EMPTY`, |
| :c:macro:`HTTPS_SERVICE_DEFINE_EMPTY`, :c:macro:`HTTP_SERVICE_DEFINE` and |
| :c:macro:`HTTPS_SERVICE_DEFINE`. |
| |
| * :kconfig:option:`CONFIG_NET_ZPERF` no longer includes server support by default. To use |
| the server commands, enable :kconfig:option:`CONFIG_NET_ZPERF_SERVER`. If server support |
| is not needed, :kconfig:option:`CONFIG_ZVFS_POLL_MAX` can possibly be reduced. |
| |
| * The L2 Wi-Fi shell now supports interface option for most commands, to accommodate this |
| change some of the existing options have been renamed. The following table |
| summarizes the changes: |
| |
| +------------------------+---------------------+--------------------+ |
| | Command(s) | Old option | New option | |
| +------------------------+---------------------+--------------------+ |
| | ``wifi connect`` | ``-i`` | ``-g`` | |
| | ``wifi ap enable`` | | | |
| +------------------------+---------------------+--------------------+ |
| | ``wifi twt setup`` | ``-i`` | ``-p`` | |
| +------------------------+---------------------+--------------------+ |
| | ``wifi ap config`` | ``-i`` | ``-t`` | |
| +------------------------+---------------------+--------------------+ |
| | ``wifi mode`` | ``--if-index`` | ``--iface`` | |
| | ``wifi channel`` | | | |
| | ``wifi packet_filter`` | | | |
| +------------------------+---------------------+--------------------+ |
| |
| * The :c:type:`http_response_cb_t` HTTP client response callback signature has |
| changed. The callback function now returns ``int`` instead of ``void``. This |
| allows the application to abort the HTTP connection. Existing applications |
| need to update their response callback implementations. To retain current |
| behavior, simply return 0 from the callback. |
| |
| * The API signature of ``net_mgmt`` event handler :c:type:`net_mgmt_event_handler_t` and |
| request handler :c:type:`net_mgmt_request_handler_t` has changed. The management event |
| type is changed from ``uint32_t`` to ``uint64_t``. The change allows event number values |
| to be bit masks instead of enum values. The layer code still stays as a enum value. |
| The :c:macro:`NET_MGMT_LAYER_CODE` and :c:macro:`NET_MGMT_GET_COMMAND` can be used to get |
| the layer code and management event command from the actual event value in the request or |
| event handlers if needed. |
| |
| * The socket options for ``net_mgmt`` type sockets cannot directly be network management |
| event types as those are now ``uint64_t`` and the socket option expects a normal 32 bit |
| integer value. Because of this, a new ``SO_NET_MGMT_ETHERNET_SET_QAV_PARAM`` |
| and ``SO_NET_MGMT_ETHERNET_GET_QAV_PARAM`` socket options are created that will replace |
| the previously used ``NET_REQUEST_ETHERNET_SET_QAV_PARAM`` and |
| ``NET_REQUEST_ETHERNET_GET_QAV_PARAM`` options. |
| |
| * The DNS server resolver configuration functions :c:func:`dns_resolve_reconfigure` and |
| :c:func:`dns_resolve_reconfigure_with_interfaces` now require that the user supplies |
| the source of the DNS server information. For example when DNS server information is |
| received via DHCPv4, then :c:enumerator:`DNS_SOURCE_DHCPV4` needs to be specified. |
| |
| .. zephyr-keep-sorted-start re(^\w) |
| |
| LwM2M |
| ===== |
| |
| * Accelerometer object: optional resources Y value, Z value, min range value, |
| max range value can now be used optionally as per the accelerometer object's |
| specification. Users of these resources will now need to provide a read |
| buffer. |
| |
| OpenThread |
| ========== |
| |
| * The OpenThread stack integration in Zephyr has undergone a major refactor. |
| The implementation has been moved from the Zephyr networking layer (``subsys/net/l2/openthread/``) |
| to a dedicated module (``modules/openthread/``). |
| |
| * OpenThread is now a standalone module in Zephyr. |
| It can be used independently of Zephyr's networking stack (L2 and IEEE802.15.4 shim layers). |
| This enables new use cases, such as applications that use OpenThread directly with their |
| own IEEE802.15.4 driver, or that do not need the full Zephyr networking stack. |
| |
| * Most functions in the :zephyr_file:`include/zephyr/net/openthread.h` file have been deprecated. |
| These deprecated APIs are still available for backward compatibility, but new applications should |
| use the new APIs provided by the OpenThread module. The following list summarizes the changes: |
| |
| * Mutex handling: |
| |
| * Previously: |
| |
| * ``openthread_api_mutex_lock`` |
| * ``openthread_api_mutex_try_lock`` |
| * ``openthread_api_mutex_unlock`` |
| |
| * Now use: |
| |
| * :c:func:`openthread_mutex_lock` |
| * :c:func:`openthread_mutex_try_lock` |
| * :c:func:`openthread_mutex_unlock` |
| |
| * OpenThread starting: |
| |
| * Previously: ``openthread_start`` |
| * Now use: :c:func:`openthread_run` |
| |
| * Callback registration: |
| |
| * Previously: |
| |
| * ``openthread_state_changed_cb_register`` |
| * ``openthread_state_changed_cb_unregister`` |
| |
| * Now use: |
| |
| * :c:func:`openthread_state_changed_callback_register` |
| * :c:func:`openthread_state_changed_callback_unregister` |
| |
| * Callback structure: |
| |
| * Previously: ``openthread_state_changed_cb`` |
| * Now use: :c:struct:`openthread_state_changed_callback` |
| |
| * The following :c:struct:`openthread_context` struct fields are deprecated and shall not be used |
| in new code anymore: |
| |
| * ``instance`` |
| * ``api_lock`` |
| * ``work_q`` |
| * ``api_work`` |
| * ``state_change_cbs`` |
| |
| * The new functions that were not present before: |
| |
| * :c:func:`openthread_init` to initialize the OpenThread stack. |
| * :c:func:`openthread_stop` to stop and disable the OpenThread stack. |
| * :c:func:`openthread_set_receive_cb` to set the receive callback for the OpenThread stack. |
| |
| * The OpenThread-related Kconfig options from ``subsys/net/l2/openthread/Kconfig`` |
| have been moved to :zephyr_file:`modules/openthread/Kconfig`. All Kconfig options remain the same. |
| You can still use them in the same way as before, but to modify them, use the new path in the |
| menuconfig or guiconfig. |
| |
| * If the :kconfig:option:`CONFIG_NET_L2_OPENTHREAD` Kconfig option is enabled, Zephyr's L2 layer |
| will use the new OpenThread module API as its backend. The L2 layer no longer implements |
| OpenThread itself, but delegates the implementation to the module. |
| |
| * For existing applications using OpenThread through Zephyr's networking stack: |
| |
| * Your application should continue to work, as the old APIs are still available for compatibility. |
| However, you are encouraged to migrate to the new APIs for future-proofing and use the new |
| modular structure. |
| * Update any references to OpenThread Kconfig options to use the new path |
| (``modules/openthread/Kconfig``) in your configuration tools. |
| |
| * For applications using :c:struct:`openthread_context` or other deprecated APIs: |
| |
| * Begin migrating to the new APIs. The deprecated APIs will be removed in a future release. |
| * Avoid direct use of :c:struct:`openthread_context` and related fields; use the new |
| initialization and callback registration functions instead. |
| |
| * For new applications or those using OpenThread without Zephyr L2: |
| |
| * Use the new initialization (:c:func:`openthread_init`), run (:c:func:`openthread_run`), |
| and callback registration APIs (:c:func:`openthread_state_change_callback_register`). |
| * You can now use OpenThread directly, without enabling Zephyr's L2 or IEEE802.15.4 layers, if |
| your use case allows. |
| |
| .. zephyr-keep-sorted-stop |
| |
| |
| Other subsystems |
| **************** |
| |
| .. zephyr-keep-sorted-start re(^\w) |
| |
| Modbus |
| ====== |
| |
| * The ``client_stop_bits`` field in :c:struct:`modbus_serial_param` has been renamed into ``stop_bits``. |
| The setting is valid in both client and server modes. |
| * Custom stop-bit settings are disabled by default and should be enabled |
| by :kconfig:option:`CONFIG_MODBUS_NONCOMPLIANT_SERIAL_MODE`. |
| |
| State Machine Framework |
| ======================= |
| |
| * :c:func:`smf_set_handled` has been removed. |
| * State run actions now return an :c:enum:`smf_state_result` value instead of void. and the return |
| code determines if the event is propagated to parent run actions or has been handled. A run action |
| that handles the event completely should return :c:enum:`SMF_EVENT_HANDLED`, and run actions that |
| propagate handling to parent states should return :c:enum:`SMF_EVENT_PROPAGATE`. |
| * Flat state machines ignore the return value; returning :c:enum:`SMF_EVENT_HANDLED` |
| would be the most technically accurate response. |
| |
| hawkBit |
| ======= |
| |
| * When :kconfig:option:`CONFIG_HAWKBIT_CUSTOM_DEVICE_ID` is enabled, device_id will no longer |
| be prepended with :kconfig:option:`CONFIG_BOARD`. It is the user's responsibility to write a |
| callback that prepends the board name if needed. |
| |
| .. zephyr-keep-sorted-stop |
| |
| Modules |
| ******* |
| |
| .. zephyr-keep-sorted-start re(^\w) |
| |
| CMSIS |
| ===== |
| |
| * Cortex-M boards/socs now require the ``CMSIS_6`` module to build properly (instead of ``cmsis`` |
| which was CMSIS 5.9.0). |
| If trying to build a Cortex-M board, do a ``west update`` to make sure that ``CMSIS_6`` module is |
| available before running ``west build`` or other commands. |
| |
| Boards or SOCs or modules using the older ``cmsis`` module either with a local copy or via the |
| :kconfig:option:`CONFIG_ZEPHYR_CMSIS_MODULE_DIR` are requested to move to the ``CMSIS_6`` module |
| which can be accessed via the :kconfig:option:`CONFIG_ZEPHYR_CMSIS_6_MODULE_DIR` configuration. |
| |
| Note: Zephyr will continue using the older ``cmsis`` module for Cortex-A and Cortex-R targets. |
| |
| .. zephyr-keep-sorted-stop |
| |
| Architectures |
| ************* |
| |
| * Moved :kconfig:option:`CONFIG_SRAM_VECTOR_TABLE` from ``zephyr/Kconfig.zephyr`` to |
| ``zephyr/arch/Kconfig`` and added dependency to :kconfig:option:`CONFIG_XIP`, |
| :kconfig:option:`CONFIG_ARCH_HAS_VECTOR_TABLE_RELOCATION` and |
| :kconfig:option:`CONFIG_ROMSTART_RELOCATION_ROM` to support relocation |
| of vector table in RAM. |
| * Renamed :kconfig:option:`CONFIG_DEBUG_INFO` to :kconfig:option:`CONFIG_X86_DEBUG_INFO` to |
| better reflect its purpose. This option is now only available for x86 architecture. |
