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feat(gpio): support LP_IO clock gating management

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wuzhenghui
2024-02-28 15:56:34 +08:00
parent 92849e660e
commit 0fc97f0e84
10 changed files with 128 additions and 10 deletions
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23
components/esp_driver_gpio/src/rtc_io.c
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2019-2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2019-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -8,6 +8,7 @@
#include "esp_log.h"
#include "esp_err.h"
#include "esp_check.h"
#include "esp_private/periph_ctrl.h"
#include "freertos/FreeRTOS.h"
#include "freertos/semphr.h"
#include "freertos/timers.h"
@@ -17,6 +18,16 @@
#include "soc/rtc_io_periph.h"
#include "soc/soc_caps.h"
#if SOC_LP_IO_CLOCK_IS_INDEPENDENT && !SOC_RTCIO_RCC_IS_INDEPENDENT
// For `rtcio_hal_function_select` using, clock reg option is inlined in it,
// so remove the declaration check of __DECLARE_RCC_RC_ATOMIC_ENV
#define RTCIO_RCC_ATOMIC() \
for (int i = 1; i ? (periph_rcc_enter(), 1) : 0; \
periph_rcc_exit(), i--)
#else
#define RTCIO_RCC_ATOMIC()
#endif
static const char __attribute__((__unused__)) *RTCIO_TAG = "RTCIO";
extern portMUX_TYPE rtc_spinlock; //TODO: Will be placed in the appropriate position after the rtc module is finished.
@@ -45,7 +56,9 @@ esp_err_t rtc_gpio_init(gpio_num_t gpio_num)
{
ESP_RETURN_ON_FALSE(rtc_gpio_is_valid_gpio(gpio_num), ESP_ERR_INVALID_ARG, RTCIO_TAG, "RTCIO number error");
RTCIO_ENTER_CRITICAL();
rtcio_hal_function_select(rtc_io_number_get(gpio_num), RTCIO_LL_FUNC_RTC);
RTCIO_RCC_ATOMIC() {
rtcio_hal_function_select(rtc_io_number_get(gpio_num), RTCIO_LL_FUNC_RTC);
}
RTCIO_EXIT_CRITICAL();
return ESP_OK;
@@ -55,8 +68,10 @@ esp_err_t rtc_gpio_deinit(gpio_num_t gpio_num)
{
ESP_RETURN_ON_FALSE(rtc_gpio_is_valid_gpio(gpio_num), ESP_ERR_INVALID_ARG, RTCIO_TAG, "RTCIO number error");
RTCIO_ENTER_CRITICAL();
// Select Gpio as Digital Gpio
rtcio_hal_function_select(rtc_io_number_get(gpio_num), RTCIO_LL_FUNC_DIGITAL);
RTCIO_RCC_ATOMIC() {
// Select Gpio as Digital Gpio
rtcio_hal_function_select(rtc_io_number_get(gpio_num), RTCIO_LL_FUNC_DIGITAL);
}
RTCIO_EXIT_CRITICAL();
return ESP_OK;