mirror of
https://github.com/ruvnet/RuView.git
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4b1005524e
- Add 154 missing vendor files (gitignore was filtering them) - vendor/midstream: 564 files (was 561) - vendor/sublinear-time-solver: 1190 files (was 1039) - Add ESP32 edge processing (ADR-039): presence, vitals, fall detection - Add WASM programmable sensing (ADR-040/041) with wasm3 runtime - Add firmware CI workflow (.github/workflows/firmware-ci.yml) - Add wifi-densepose-wasm-edge crate for edge WASM modules - Update sensing server, provision.py, UI components Co-Authored-By: claude-flow <ruv@ruv.net>
81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
/**
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* @file power_mgmt.c
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* @brief Power management for battery-powered ESP32-S3 CSI nodes.
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*
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* Uses ESP-IDF's automatic light sleep with WiFi power save mode.
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* In light sleep, WiFi maintains association but suspends CSI collection.
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* The duty cycle controls how often the device wakes for CSI bursts.
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*/
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#include "power_mgmt.h"
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#include "esp_log.h"
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#include "esp_pm.h"
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#include "esp_wifi.h"
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#include "esp_sleep.h"
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#include "esp_timer.h"
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static const char *TAG = "power_mgmt";
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static uint32_t s_active_ms = 0;
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static uint32_t s_sleep_ms = 0;
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static uint32_t s_wake_count = 0;
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static int64_t s_last_wake = 0;
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esp_err_t power_mgmt_init(uint8_t duty_cycle_pct)
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{
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if (duty_cycle_pct >= 100) {
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ESP_LOGI(TAG, "Power management disabled (duty_cycle=100%%)");
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return ESP_OK;
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}
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if (duty_cycle_pct < 10) {
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duty_cycle_pct = 10;
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ESP_LOGW(TAG, "Duty cycle clamped to 10%% minimum");
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}
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ESP_LOGI(TAG, "Initializing power management (duty_cycle=%u%%)", duty_cycle_pct);
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/* Enable WiFi power save mode (modem sleep). */
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esp_err_t err = esp_wifi_set_ps(WIFI_PS_MIN_MODEM);
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if (err != ESP_OK) {
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ESP_LOGW(TAG, "WiFi power save failed: %s (continuing without PM)",
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esp_err_to_name(err));
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return err;
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}
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/* Configure automatic light sleep via power management.
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* ESP-IDF will enter light sleep when no tasks are ready to run. */
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#if CONFIG_PM_ENABLE
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esp_pm_config_t pm_config = {
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.max_freq_mhz = 240,
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.min_freq_mhz = 80,
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.light_sleep_enable = true,
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};
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err = esp_pm_configure(&pm_config);
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if (err != ESP_OK) {
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ESP_LOGW(TAG, "PM configure failed: %s", esp_err_to_name(err));
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return err;
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}
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ESP_LOGI(TAG, "Light sleep enabled: max=%dMHz, min=%dMHz",
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pm_config.max_freq_mhz, pm_config.min_freq_mhz);
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#else
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ESP_LOGW(TAG, "CONFIG_PM_ENABLE not set — light sleep unavailable. "
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"Enable in menuconfig: Component config → Power Management");
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#endif
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s_last_wake = esp_timer_get_time();
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s_wake_count = 1;
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ESP_LOGI(TAG, "Power management initialized (WiFi modem sleep active)");
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return ESP_OK;
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}
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void power_mgmt_stats(uint32_t *active_ms, uint32_t *sleep_ms, uint32_t *wake_count)
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{
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if (active_ms) *active_ms = s_active_ms;
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if (sleep_ms) *sleep_ms = s_sleep_ms;
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if (wake_count) *wake_count = s_wake_count;
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}
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