39a89036cc
Doxygen: - Doxyfile: minimal config, HTML output to docs/, no LaTeX - @file/@brief on all source files, full @param/@return on public API - docs/ added to .gitignore clang-format (14, Linux brace style, 4-space, column 100): - .clang-format added - Applied to entire codebase; this commit is the canonical baseline - just format rewrites in-place; just format-check is the CI gate cppcheck (--enable=warning,style,performance,portability): - Linker-symbol pointer comparisons in startup.c suppressed with inline cppcheck-suppress (false positives, not real bugs) - just lint runs cppcheck; zero warnings required to pass Dockerfile gains clang-format, cppcheck, doxygen packages so all tools run inside the existing container -- host stays clean. Gitea Actions (.gitea/workflows/ci.yml): - Four parallel jobs: build, format, lint, docs - All jobs use the same Dockerfile-based image - Doxygen job fails on any warning line in output
40 lines
827 B
C
40 lines
827 B
C
/** @file power.c
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* @brief Power management implementation.
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*/
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#include "power.h"
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#include "regs.h"
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#include <nrf52840.h>
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#include <cmsis_gcc.h>
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/* P0.02 on XIAO BLE - adjust to match your schematic */
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#define BUTTON_PIN 2u
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void power_init(void)
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{
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/* DC/DC converter has lower quiescent current than the LDO */
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NRF_POWER->DCDCEN = 1u;
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NRF_GPIOTE->CONFIG[0] = (gpiote_config_t){
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.bit = {
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.MODE = GPIOTE_MODE_EVENT,
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.PSEL = BUTTON_PIN,
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.PORT = 0u,
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.POLARITY = GPIOTE_POL_LOTOHI,
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}}.reg;
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NRF_GPIOTE->INTENSET = (gpiote_inten_t){.bit.IN0 = 1u}.reg;
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NVIC_EnableIRQ(GPIOTE_IRQn);
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}
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void power_sleep_until_button(void)
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{
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NRF_POWER->TASKS_LOWPWR = 1u;
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__WFI();
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}
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void GPIOTE_IRQHandler(void)
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{
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NRF_GPIOTE->EVENTS_IN[0] = 0u;
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}
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