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esp_wifi: When WiFi TSF is active, skip light sleep

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* Add an API for peripherals to set callbacks to skip light sleep

* Make WiFi power save example work
This commit is contained in:
Xia Xiaotian
2020-05-07 16:15:56 +08:00
parent bd920d22b0
commit 526a3e49ed
12 changed files with 140 additions and 10 deletions
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43
components/esp32s2/pm_esp32s2.c
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@@ -80,6 +80,11 @@ static uint32_t s_ccount_div;
static uint32_t s_ccount_mul;
#if CONFIG_FREERTOS_USE_TICKLESS_IDLE
#define PERIPH_SKIP_LIGHT_SLEEP_NO 1
/* Indicates if light sleep shoule be skipped by peripherals. */
static skip_light_sleep_cb_t s_periph_skip_light_sleep_cb[PERIPH_SKIP_LIGHT_SLEEP_NO];
/* Indicates if light sleep entry was skipped in vApplicationSleep for given CPU.
* This in turn gets used in IDLE hook to decide if `waiti` needs
* to be invoked or not.
@@ -477,6 +482,42 @@ void esp_pm_impl_waiti(void)
#if CONFIG_FREERTOS_USE_TICKLESS_IDLE
esp_err_t esp_pm_register_skip_light_sleep_callback(skip_light_sleep_cb_t cb)
{
for (int i = 0; i < PERIPH_SKIP_LIGHT_SLEEP_NO; i++) {
if (s_periph_skip_light_sleep_cb[i] == cb) {
return ESP_OK;
} else if (s_periph_skip_light_sleep_cb[i] == NULL) {
s_periph_skip_light_sleep_cb[i] = cb;
return ESP_OK;
}
}
return ESP_ERR_NO_MEM;
}
esp_err_t esp_pm_unregister_skip_light_sleep_callback(skip_light_sleep_cb_t cb)
{
for (int i = 0; i < PERIPH_SKIP_LIGHT_SLEEP_NO; i++) {
if (s_periph_skip_light_sleep_cb[i] == cb) {
s_periph_skip_light_sleep_cb[i] = NULL;
return ESP_OK;
}
}
return ESP_ERR_INVALID_STATE;
}
static inline bool IRAM_ATTR periph_should_skip_light_sleep(void)
{
for (int i = 0; i < PERIPH_SKIP_LIGHT_SLEEP_NO; i++) {
if (s_periph_skip_light_sleep_cb[i]) {
if (s_periph_skip_light_sleep_cb[i]() == true) {
return true;
}
}
}
return false;
}
static inline bool IRAM_ATTR should_skip_light_sleep(int core_id)
{
#if portNUM_PROCESSORS == 2
@@ -486,7 +527,7 @@ static inline bool IRAM_ATTR should_skip_light_sleep(int core_id)
return true;
}
#endif // portNUM_PROCESSORS == 2
if (s_mode != PM_MODE_LIGHT_SLEEP || s_is_switching) {
if (s_mode != PM_MODE_LIGHT_SLEEP || s_is_switching || periph_should_skip_light_sleep()) {
s_skipped_light_sleep[core_id] = true;
} else {
s_skipped_light_sleep[core_id] = false;