| :orphan: |
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| .. _zephyr_2.2: |
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| Zephyr 2.2.0 (Working Draft) |
| ############################ |
| |
| We are pleased to announce the release of Zephyr kernel version 2.2.0. |
| |
| Major enhancements with this release include: |
| |
| * CANopen protocol support through 3rd party CANopenNode stack |
| |
| The following sections provide detailed lists of changes by component. |
| |
| Security Vulnerability Related |
| ****************************** |
| |
| No security vulnerabilities received. |
| |
| API Changes |
| *********** |
| |
| Deprecated in this release |
| ========================== |
| |
| * Settings |
| |
| * SETTINGS_USE_BASE64, encoding values in base64 is marked for removal. |
| |
| Stable API changes in this release |
| ================================== |
| |
| * GPIO |
| |
| * The gpio_pin_write() and gpio_pin_read() functions have been |
| deprecated, and should be replaced with gpio_pin_set_raw() and |
| gpio_pin_get_raw(), or if the active level flags were present and |
| supported by gpio_pin_set() and gpio_pin_get(). The functions have |
| been re-implemented with these substitutes. |
| * The gpio_pin_enable_callback() function has been deprecated, and |
| should be replaced by gpio_pin_interrupt_configure(), passing the |
| appropriate interrupt configuration. |
| * The gpio_pin_disable_callback() function has been deprecated, and |
| should be replaced by gpio_pin_interrupt_configure() passed |
| GPIO_INT_DISABLE. |
| * Many GPIO configuration flags have been deprecated and replaced by |
| more carefully selected flags. These include: |
| * GPIO_DIR_OUT becomes GPIO_OUTPUT |
| * GPIO_DIR_IN becomes GPIO_INPUT |
| * GPIO_DS_DISCONNECT_LOW becomes GPIO_OPEN_SOURCE |
| * GPIO_DS_DISCONNECT_HIGH becomes GPIO_OPEN_DRAIN |
| * GPIO_PUD_NORMAL becomes 0 |
| * GPIO_PUD_PULL_UP becomes GPIO_PULL_UP |
| * GPIO_PUD_PULL_DOWN becomes GPIO_PULL_DOWN |
| * GPIO_INT becomes GPIO_INT_ENABLE |
| * GPIO_INT_LEVEL becomes not GPIO_INT_EDGE |
| * GPIO_INT_ACTIVE_LOW becomes GPIO_ACTIVE_LOW or GPIO_INT_LOW_0 |
| * GPIO_INT_ACTIVE_HIGH becomes GPIO_ACTIVE_HIGH or GPIO_INT_HIGH_1 |
| * GPIO_INT_DOUBLE_EDGE becomes GPIO_INT_EDGE_BOTH |
| * GPIO_POL_NORMAL becomes GPIO_ACTIVE_HIGH |
| * GPIO_POL_INV becomes GPIO_ACTIVE_LOW |
| |
| * PWM |
| |
| * The pwm_pin_set_cycles(), pwm_pin_set_usec(), and |
| pwm_pin_set_nsec() functions now take a flags parameter. The newly |
| introduced flags are PWM_POLARITY_NORMAL and PWM_POLARITY_INVERTED |
| for specifying the polarity of the PWM signal. The flags parameter |
| can be set to 0 if no flags are required (the default is |
| PWM_POLARITY_NORMAL). |
| * Similarly, the pwm_pin_set_t PWM driver API function function now |
| takes a flags parameter. The PWM controller driver must check the |
| value of the flags parameter and return -ENOTSUP if any |
| unsupported flag is set. |
| |
| * USB |
| |
| * The usb_enable() function, which was previously invoked automatically |
| by the USB stack, now needs to be explicitly called by the application |
| in order to enable the USB subsystem. |
| * The usb_enable() function now takes a parameter, usb_dc_status_callback |
| which can be set by the application to a callback to receive status events |
| from the USB stack. The parameter can also be set to NULL if no callback is required. |
| |
| * nRF flash driver |
| |
| * The nRF Flash driver has changed its default write block size to 32-bit |
| aligned. Previous emulation of 8-bit write block size can be selected using |
| the CONFIG_SOC_FLASH_NRF_EMULATE_ONE_BYTE_WRITE_ACCESS Kconfig option. |
| Usage of 8-bit write block size emulation is only recommended for |
| compatibility with older storage contents. |
| |
| * Clock control |
| |
| * The callback prototype (clock_control_cb_t) has now additional argument |
| (clock_control_subsys_t) indicating which clock subsystem got started. |
| |
| Removed APIs in this release |
| ============================ |
| |
| * Shell |
| |
| * SHELL_CREATE_STATIC_SUBCMD_SET (deprecated), replaced by |
| SHELL_STATIC_SUBCMD_SET_CREATE |
| * SHELL_CREATE_DYNAMIC_CMD (deprecated), replaced by SHELL_DYNAMIC_CMD_CREATE |
| |
| * Newtron Flash File System (NFFS) was removed. NFFS was removed since it has |
| serious issues, not fixed since a long time. Where it was possible |
| NFFS usage was replaced by LittleFS usage as the better substitute. |
| |
| Kernel |
| ****** |
| |
| * <TBD> |
| |
| Architectures |
| ************* |
| |
| * ARC: |
| |
| * <TBD> |
| |
| * ARM: |
| |
| * Removed support for CC2650 |
| |
| * POSIX: |
| |
| * <TBD> |
| |
| * RISC-V: |
| |
| * <TBD> |
| |
| * x86: |
| |
| * <TBD> |
| |
| Boards & SoC Support |
| ******************** |
| |
| * Added support for these SoC series: |
| |
| .. rst-class:: rst-columns |
| |
| * <TBD> |
| |
| * Added support for these ARM boards: |
| |
| .. rst-class:: rst-columns |
| |
| * <TBD> |
| |
| * Added support for these following shields: |
| |
| .. rst-class:: rst-columns |
| |
| * <TBD> |
| |
| Drivers and Sensors |
| ******************* |
| |
| * ADC |
| |
| * <TBD> |
| |
| * Bluetooth |
| |
| * <TBD> |
| |
| * CAN |
| |
| * <TBD> |
| |
| * Clock Control |
| |
| * <TBD> |
| |
| * Console |
| |
| * <TBD> |
| |
| * Counter |
| |
| * The counter_read() API function is deprecated in favor of |
| counter_get_value(). The new API function adds a return value for |
| indicating whether the counter was read successfully. |
| |
| * Display |
| |
| * <TBD> |
| |
| * DMA |
| |
| * <TBD> |
| |
| * EEPROM |
| |
| * <TBD> |
| |
| * Entropy |
| |
| * <TBD> |
| |
| * Ethernet |
| |
| * <TBD> |
| |
| * Flash |
| |
| * <TBD> |
| |
| * GPIO |
| |
| * <TBD> |
| |
| * Hardware Info |
| |
| * <TBD> |
| |
| * I2C |
| |
| * <TBD> |
| |
| * I2S |
| |
| * <TBD> |
| |
| * IEEE 802.15.4 |
| |
| * <TBD> |
| |
| * Interrupt Controller |
| |
| * <TBD> |
| |
| * IPM |
| |
| * <TBD> |
| |
| * Keyboard Scan |
| |
| * <TBD> |
| |
| * LED |
| |
| * <TBD> |
| |
| * Modem |
| |
| * <TBD> |
| |
| * Pinmux |
| |
| * <TBD> |
| |
| * PS/2 |
| |
| * <TBD> |
| |
| * PWM |
| |
| * <TBD> |
| |
| * Sensor |
| |
| * <TBD> |
| |
| * Serial |
| |
| * <TBD> |
| |
| * SPI |
| |
| * <TBD> |
| |
| * Timer |
| |
| * <TBD> |
| |
| * USB |
| |
| * <TBD> |
| |
| * Video |
| |
| * <TBD> |
| |
| * Watchdog |
| |
| * <TBD> |
| |
| * WiFi |
| |
| * <TBD> |
| |
| Networking |
| ********** |
| |
| * <TBD> |
| |
| Bluetooth |
| ********* |
| |
| * Host: |
| |
| * <TBD> |
| |
| * BLE split software Controller: |
| |
| * <TBD> |
| |
| * BLE legacy software Controller: |
| |
| * <TBD> |
| |
| Build and Infrastructure |
| ************************ |
| |
| * The minimum Python version supported by Zephyr's build system and tools is |
| now 3.6. |
| * Renamed :file:`generated_dts_board.h` and :file:`generated_dts_board.conf` to |
| :file:`devicetree.h` and :file:`devicetree.conf`, along with various related |
| identifiers. Including :file:`generated_dts_board.h` now generates a warning |
| saying to include :file:`devicetree.h` instead. |
| * <Other items TBD> |
| |
| Libraries / Subsystems |
| *********************** |
| |
| * Random |
| |
| * <TBD> |
| |
| HALs |
| **** |
| |
| * HALs are now moved out of the main tree as external modules and reside in |
| their own standalone repositories. |
| |
| Documentation |
| ************* |
| |
| * <TBD> |
| |
| Tests and Samples |
| ***************** |
| |
| * <TBD> |
| |
| Issue Related Items |
| ******************* |
| |
| These GitHub issues were addressed since the previous 2.1.0 tagged |
| release: |
| |
| .. comment List derived from GitHub Issue query: ... |
| * :github:`issuenumber` - issue title |
