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esp32/modesp32: Add esp32.wake_on_gpio() function.

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Some boards support waking up via GPIO pins, but this is not currently
supported by MicroPython.  This commit adds support for waking with GPIO in
a similar interface to waking with ext0, ext1, touch and ulp.  This commit
adds documentation for this new function as well.

Signed-off-by: Meir Armon <meirarmon@gmail.com>
This commit is contained in:
Meir Armon
2025-06-16 07:57:00 +03:00
committed by Damien George
parent 2762fe680a
commit b4ab3a893c
5 changed files with 103 additions and 3 deletions
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51
ports/esp32/modesp32.c
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@@ -46,12 +46,13 @@
#define MULTI_HEAP_FREERTOS
#include "../multi_heap_platform.h"
#include "../heap_private.h"
#include "driver/rtc_io.h"
#if SOC_TOUCH_SENSOR_SUPPORTED
static mp_obj_t esp32_wake_on_touch(const mp_obj_t wake) {
#if SOC_PM_SUPPORT_EXT0_WAKEUP
if (machine_rtc_config.ext0_pin != -1) {
if (machine_rtc_config.ext0_pin != -1 || machine_rtc_config.gpio_pins != 0) {
mp_raise_ValueError(MP_ERROR_TEXT("no resources"));
}
#endif
@@ -140,7 +141,7 @@ static MP_DEFINE_CONST_FUN_OBJ_KW(esp32_wake_on_ext1_obj, 0, esp32_wake_on_ext1)
#if SOC_ULP_SUPPORTED
static mp_obj_t esp32_wake_on_ulp(const mp_obj_t wake) {
#if SOC_PM_SUPPORT_EXT0_WAKEUP
if (machine_rtc_config.ext0_pin != -1) {
if (machine_rtc_config.ext0_pin != -1 || machine_rtc_config.gpio_pins != 0) {
mp_raise_ValueError(MP_ERROR_TEXT("no resources"));
}
#endif
@@ -150,6 +151,51 @@ static mp_obj_t esp32_wake_on_ulp(const mp_obj_t wake) {
static MP_DEFINE_CONST_FUN_OBJ_1(esp32_wake_on_ulp_obj, esp32_wake_on_ulp);
#endif
static mp_obj_t esp32_wake_on_gpio(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum {ARG_pins, ARG_level};
const mp_arg_t allowed_args[] = {
{ MP_QSTR_pins, MP_ARG_OBJ, {.u_obj = mp_const_none} },
{ MP_QSTR_level, MP_ARG_BOOL, {.u_bool = machine_rtc_config.gpio_level} },
};
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
uint64_t gpio_pins = machine_rtc_config.gpio_pins;
#if SOC_ULP_SUPPORTED
if (machine_rtc_config.wake_on_ulp) {
mp_raise_ValueError(MP_ERROR_TEXT("no resources"));
}
#endif
#if SOC_TOUCH_SENSOR_SUPPORTED
if (machine_rtc_config.wake_on_touch) {
mp_raise_ValueError(MP_ERROR_TEXT("no resources"));
}
#endif
// Check that all pins are allowed
if (args[ARG_pins].u_obj != mp_const_none) {
size_t len = 0;
mp_obj_t *elem;
mp_obj_get_array(args[ARG_pins].u_obj, &len, &elem);
gpio_pins = 0;
for (int i = 0; i < len; i++) {
// Don't validate the pins at this point, since we can be using
// gpio pins for deepsleep or light sleep.
// Validations happen in the relevant sleep functions.
gpio_num_t pin_id = machine_pin_get_id(elem[i]);
gpio_pins |= (1ll << pin_id);
}
}
machine_rtc_config.gpio_level = args[ARG_level].u_bool;
machine_rtc_config.gpio_pins = gpio_pins;
return mp_const_none;
}
static MP_DEFINE_CONST_FUN_OBJ_KW(esp32_wake_on_gpio_obj, 0, esp32_wake_on_gpio);
#if !SOC_GPIO_SUPPORT_HOLD_SINGLE_IO_IN_DSLP
static mp_obj_t esp32_gpio_deep_sleep_hold(const mp_obj_t enable) {
if (mp_obj_is_true(enable)) {
@@ -284,6 +330,7 @@ static const mp_rom_map_elem_t esp32_module_globals_table[] = {
#if SOC_ULP_SUPPORTED
{ MP_ROM_QSTR(MP_QSTR_wake_on_ulp), MP_ROM_PTR(&esp32_wake_on_ulp_obj) },
#endif
{ MP_ROM_QSTR(MP_QSTR_wake_on_gpio), MP_ROM_PTR(&esp32_wake_on_gpio_obj) },
#if !SOC_GPIO_SUPPORT_HOLD_SINGLE_IO_IN_DSLP
{ MP_ROM_QSTR(MP_QSTR_gpio_deep_sleep_hold), MP_ROM_PTR(&esp32_gpio_deep_sleep_hold_obj) },
#endif