c17e16eaed
This commit updates the common-source integration for Xtensa-based Espressif devices (ESP32, ESP32-S2, and ESP32-S3). This is part of a larger common-source update split by architecture for better maintainability. Major components updated: - IRQ allocator refactoring with intr_alloc integration - Common-source drivers (GPIO, RMT, I2C, SPI, UART, etc.) - Espressif components upgrade to release/master.b-test - Peripheral drivers (ADC, PWM, LEDC, MCPWM, PCNT, Temperature Sensor, etc.) - Wireless adapters (Wi-Fi and BLE) - esp_timer migration to the common-source path for Xtensa devices - Common-source power management implementation (auto-sleep and wakeup paths) - Board defconfigs for all Xtensa Espressif boards - SMP support improvements for ESP32-S3 - Critical section handling improvements Key architectural changes: - IRQ Allocator: The new interrupt allocator enables multiple mapping options from interrupt sources to CPU interrupts, providing flexibility required by modern peripherals. Although this introduces breaking changes to the interrupt handling API, the required ARCH_MINIMAL_VECTORTABLE Kconfig option is explicitly checked during startup to ensure proper configuration. This validation prevents runtime issues from configuration mismatches. - Xtensa-specific interrupt handling via esp_xtensa_intr.c providing NuttX-native implementations of xt_ints_on/off and interrupt handlers, avoiding conflicts with NuttX's core Xtensa macros. - Timer/RTC unification: ESP32/ESP32-S2/ESP32-S3 move from chip-specific RTC/RT-timer code to common-source Espressif integration, including esp_timer_adapter/esp_rtc paths and the required bringup/defconfig updates. - Power management consolidation: Xtensa PM follows the common-source implementation, including common-source auto-sleep behavior, UART/Wi-Fi wakeup coordination, and tickless-safe sleep flow compatibility. Note: This is a large commit to maintain bisectability. Breaking the changes into smaller commits would result in non-building intermediate states across the common-source infrastructure update. Tested configurations: - All defconfigs were tested, including `ostest`. Signed-off-by: Tiago Medicci Serrano <tiago.medicci@espressif.com> |
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| .github | ||
| arch | ||
| audio | ||
| binfmt | ||
| boards | ||
| cmake | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| dummy | ||
| fs | ||
| graphics | ||
| include | ||
| libs | ||
| mm | ||
| net | ||
| openamp | ||
| pass1 | ||
| sched | ||
| syscall | ||
| tools | ||
| video | ||
| wireless | ||
| .asf.yaml | ||
| .codespell-ignore-lines | ||
| .codespellrc | ||
| .editorconfig | ||
| .gitignore | ||
| .gitmessage | ||
| .pre-commit-config.yaml | ||
| .yamllint | ||
| AUTHORS | ||
| CMakeLists.txt | ||
| CONTRIBUTING.md | ||
| INVIOLABLES.md | ||
| Kconfig | ||
| LICENSE | ||
| Makefile | ||
| NOTICE | ||
| README.md | ||
| ReleaseNotes | ||
Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).
For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.
Getting Started
First time on NuttX? Read the Getting Started guide! If you don't have a board available, NuttX has its own simulator that you can run on terminal.
Documentation
You can find the current NuttX documentation on the Documentation Page.
Alternatively, you can build the documentation yourself by following the Documentation Build Instructions.
The old NuttX documentation is still available in the Apache wiki.
Supported Boards
NuttX supports a wide variety of platforms. See the full list on the Supported Platforms page.
Contributing
If you wish to contribute to the NuttX project, read the Contributing guidelines for information on Git usage, coding standard, workflow and the NuttX principles.
License
The code in this repository is under either the Apache 2 license, or a license compatible with the Apache 2 license. See the License Page for more information.