mirror of
https://github.com/espressif/esp-idf.git
synced 2025-10-03 18:40:59 +02:00
795ac5f2dc
The previous workaround does not work, the backup/restore should apply to RTC IO registers.
114 lines
3.5 KiB
C
114 lines
3.5 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
// The HAL layer for GPIO (common part)
|
|
//
|
|
#include "esp_attr.h"
|
|
#include "soc/soc.h"
|
|
#include "hal/gpio_hal.h"
|
|
#include "hal/rtc_io_ll.h"
|
|
#include "soc/soc_caps.h"
|
|
|
|
#if CONFIG_GPIO_ESP32_SUPPORT_SWITCH_SLP_PULL
|
|
typedef struct gpio_slp_mode_cfg {
|
|
volatile uint32_t fun_pu;
|
|
volatile uint32_t fun_pd;
|
|
} gpio_slp_mode_cfg_t;
|
|
|
|
static void gpio_hal_sleep_mode_setup_wrapper(
|
|
gpio_hal_context_t *hal,
|
|
uint32_t gpio_num,
|
|
void (*opt)(gpio_hal_context_t *, uint32_t, void *)
|
|
)
|
|
{
|
|
static DRAM_ATTR gpio_slp_mode_cfg_t gpio_cfg;
|
|
if (opt) {
|
|
(*opt)(hal, gpio_num, (void *)&gpio_cfg);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief GPIO pu/pd information backup function
|
|
* @param hal gpio hal
|
|
* @param gpio_num gpio num
|
|
* @param args pointer for bitmap to backup GPIO pu/pd information
|
|
*/
|
|
static void gpio_hal_fun_pupd_backup(gpio_hal_context_t *hal, uint32_t gpio_num, void *args)
|
|
{
|
|
/* On ESP32, setting SLP_PU, SLP_PD couldn't change GPIO status
|
|
* from FUN_PU, FUN_PD to SLP_PU, SLP_PD at sleep.
|
|
* On the ESP32S2, it does.
|
|
* The following code emulates ESP32S2`s behavior:
|
|
*/
|
|
gpio_slp_mode_cfg_t *pcfg = (gpio_slp_mode_cfg_t *)args;
|
|
|
|
int rtcio_num = rtc_io_num_map[gpio_num];
|
|
if (rtcio_num >= 0 && gpio_ll_sleep_sel_is_enabled(hal->dev, gpio_num)) {
|
|
if (rtcio_ll_is_pullup_enabled(rtcio_num)) {
|
|
pcfg->fun_pu |= BIT(rtcio_num);
|
|
} else {
|
|
pcfg->fun_pu &= ~BIT(rtcio_num);
|
|
}
|
|
if (rtcio_ll_is_pulldown_enabled(rtcio_num)) {
|
|
pcfg->fun_pd |= BIT(rtcio_num);
|
|
} else {
|
|
pcfg->fun_pd &= ~BIT(rtcio_num);
|
|
}
|
|
|
|
if (gpio_ll_sleep_pullup_is_enabled(hal->dev, gpio_num)) {
|
|
rtcio_ll_pullup_enable(rtcio_num);
|
|
} else {
|
|
rtcio_ll_pullup_disable(rtcio_num);
|
|
}
|
|
if (gpio_ll_sleep_pulldown_is_enabled(hal->dev, gpio_num)) {
|
|
rtcio_ll_pulldown_enable(rtcio_num);
|
|
} else {
|
|
rtcio_ll_pulldown_disable(rtcio_num);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief GPIO pu/pd information backup function
|
|
* @param hal gpio hal
|
|
* @param gpio_num gpio num
|
|
* @param args pointer for bitmap to restore GPIO pu/pd information
|
|
*/
|
|
static void gpio_hal_fun_pupd_restore(gpio_hal_context_t *hal, uint32_t gpio_num, void *args)
|
|
{
|
|
/* On ESP32, setting SLP_PU, SLP_PD couldn't change GPIO status
|
|
* from SLP_PU, SLP_PD to FUN_PU, FUN_PD when it wakes up.
|
|
* On the ESP32S2, it does.
|
|
* The following code emulates ESP32S2`s behavior:
|
|
*/
|
|
gpio_slp_mode_cfg_t *pcfg = (gpio_slp_mode_cfg_t *)args;
|
|
|
|
int rtcio_num = rtc_io_num_map[gpio_num];
|
|
if (rtcio_num >= 0 && gpio_ll_sleep_sel_is_enabled(hal->dev, gpio_num)) {
|
|
if (pcfg->fun_pu & BIT(rtcio_num)) {
|
|
rtcio_ll_pullup_enable(rtcio_num);
|
|
} else {
|
|
rtcio_ll_pullup_disable(rtcio_num);
|
|
}
|
|
if (pcfg->fun_pd & BIT(rtcio_num)) {
|
|
rtcio_ll_pulldown_enable(rtcio_num);
|
|
} else {
|
|
rtcio_ll_pulldown_disable(rtcio_num);
|
|
}
|
|
}
|
|
}
|
|
|
|
void gpio_hal_sleep_pupd_config_apply(gpio_hal_context_t *hal, uint32_t gpio_num)
|
|
{
|
|
gpio_hal_sleep_mode_setup_wrapper(hal, gpio_num, gpio_hal_fun_pupd_backup);
|
|
}
|
|
|
|
void gpio_hal_sleep_pupd_config_unapply(gpio_hal_context_t *hal, uint32_t gpio_num)
|
|
{
|
|
gpio_hal_sleep_mode_setup_wrapper(hal, gpio_num, gpio_hal_fun_pupd_restore);
|
|
}
|
|
#endif
|