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esp32/modesp32: Add wake_on_ulp() so ULP can wake CPU from deepsleep.

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Add esp32.wake_on_ulp() to give access to esp_sleep_enable_ulp_wakeup(),
which is needed to allow the ULP co-processor to wake the main CPU from
deep sleep.
This commit is contained in:
Christian Walther 2022-05-26 16:29:26 +02:00 committed by Damien George
parent cf550ad9d1
commit ba21f76f89
4 changed files with 22 additions and 0 deletions
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5
docs/library/esp32.rst
View File

@ -18,6 +18,11 @@ Functions
Configure whether or not a touch will wake the device from sleep.
*wake* should be a boolean value.
.. function:: wake_on_ulp(wake)
Configure whether or not the Ultra-Low-Power co-processor can wake the
device from sleep. *wake* should be a boolean value.
.. function:: wake_on_ext0(pin, level)
Configure how EXT0 wakes the device from sleep. *pin* can be ``None``

1
ports/esp32/machine_rtc.h
View File

@ -34,6 +34,7 @@ typedef struct {
uint64_t ext1_pins; // set bit == pin#
int8_t ext0_pin; // just the pin#, -1 == None
bool wake_on_touch : 1;
bool wake_on_ulp : 1;
bool ext0_level : 1;
wake_type_t ext0_wake_types;
bool ext1_level : 1;

10
ports/esp32/modesp32.c
View File

@ -131,6 +131,15 @@ STATIC mp_obj_t esp32_wake_on_ext1(size_t n_args, const mp_obj_t *pos_args, mp_m
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(esp32_wake_on_ext1_obj, 0, esp32_wake_on_ext1);
STATIC mp_obj_t esp32_wake_on_ulp(const mp_obj_t wake) {
if (machine_rtc_config.ext0_pin != -1) {
mp_raise_ValueError(MP_ERROR_TEXT("no resources"));
}
machine_rtc_config.wake_on_ulp = mp_obj_is_true(wake);
return mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(esp32_wake_on_ulp_obj, esp32_wake_on_ulp);
STATIC mp_obj_t esp32_gpio_deep_sleep_hold(const mp_obj_t enable) {
if (mp_obj_is_true(enable)) {
gpio_deep_sleep_hold_en();
@ -197,6 +206,7 @@ STATIC const mp_rom_map_elem_t esp32_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR_wake_on_touch), MP_ROM_PTR(&esp32_wake_on_touch_obj) },
{ MP_ROM_QSTR(MP_QSTR_wake_on_ext0), MP_ROM_PTR(&esp32_wake_on_ext0_obj) },
{ MP_ROM_QSTR(MP_QSTR_wake_on_ext1), MP_ROM_PTR(&esp32_wake_on_ext1_obj) },
{ MP_ROM_QSTR(MP_QSTR_wake_on_ulp), MP_ROM_PTR(&esp32_wake_on_ulp_obj) },
{ MP_ROM_QSTR(MP_QSTR_gpio_deep_sleep_hold), MP_ROM_PTR(&esp32_gpio_deep_sleep_hold_obj) },
#if CONFIG_IDF_TARGET_ESP32
{ MP_ROM_QSTR(MP_QSTR_raw_temperature), MP_ROM_PTR(&esp32_raw_temperature_obj) },

6
ports/esp32/modmachine.c
View File

@ -144,6 +144,12 @@ STATIC mp_obj_t machine_sleep_helper(wake_type_t wake_type, size_t n_args, const
}
}
if (machine_rtc_config.wake_on_ulp) {
if (esp_sleep_enable_ulp_wakeup() != ESP_OK) {
mp_raise_msg(&mp_type_RuntimeError, MP_ERROR_TEXT("esp_sleep_enable_ulp_wakeup() failed"));
}
}
#endif
switch (wake_type) {