alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-09 12:35:28 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'refactor/rtcio_caps_responsibility' into 'master'

Browse Source 
refactor(driver/rtcio): Re-wrap RTCIO APIs with more accurate soc_caps

Closes IDF-7406

See merge request espressif/esp-idf!24522
This commit is contained in:
Song Ruo Jing
2023-07-07 14:25:47 +08:00
parent c3e5f05622 4985caa38f
commit ea48030514
22 changed files with 317 additions and 107 deletions
Download Patch File Download Diff File Expand all files Collapse all files

104
components/hal/esp32h2/include/hal/rtc_io_ll.h Normal file
View File

@@ -0,0 +1,104 @@
/*
* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
/*******************************************************************************
* NOTICE
* The ll is not public api, don't use in application code.
* See readme.md in hal/readme.md
******************************************************************************/
#pragma once
#include "soc/lp_aon_struct.h"
#include "soc/pmu_struct.h"
#include "hal/misc.h"
#ifdef __cplusplus
extern "C" {
#endif
#define RTCIO_LL_GPIO_NUM_OFFSET 7 // rtcio 0-7 correspond to gpio 7-14
typedef enum {
RTCIO_FUNC_RTC = 0x0, /*!< The pin controlled by RTC module. */
RTCIO_FUNC_DIGITAL = 0x1, /*!< The pin controlled by DIGITAL module. */
} rtcio_ll_func_t;
/**
* @brief Select the rtcio function.
*
* @note The RTC function must be selected before the pad analog function is enabled.
*
* @param rtcio_num The index of rtcio. 0 ~ MAX(rtcio).
* @param func Select pin function.
*/
static inline void rtcio_ll_function_select(int rtcio_num, rtcio_ll_func_t func)
{
if (func == RTCIO_FUNC_RTC) {
// 0: GPIO connected to digital GPIO module. 1: GPIO connected to analog RTC module.
uint32_t sel_mask = HAL_FORCE_READ_U32_REG_FIELD(LP_AON.gpio_mux, gpio_mux_sel);
sel_mask |= BIT(rtcio_num);
HAL_FORCE_MODIFY_U32_REG_FIELD(LP_AON.gpio_mux, gpio_mux_sel, sel_mask);
} else if (func == RTCIO_FUNC_DIGITAL) {
// Clear the bit to use digital GPIO module
uint32_t sel_mask = HAL_FORCE_READ_U32_REG_FIELD(LP_AON.gpio_mux, gpio_mux_sel);
sel_mask &= ~BIT(rtcio_num);
HAL_FORCE_MODIFY_U32_REG_FIELD(LP_AON.gpio_mux, gpio_mux_sel, sel_mask);
}
}
/**
* Enable force hold function for an RTC IO pad.
*
* Enabling HOLD function will cause the pad to lock current status, such as,
* input/output enable, input/output value, function, drive strength values.
* This function is useful when going into light or deep sleep mode to prevent
* the pin configuration from changing.
*
* @param rtcio_num The index of rtcio. 0 ~ MAX(rtcio).
*/
static inline void rtcio_ll_force_hold_enable(int rtcio_num)
{
LP_AON.gpio_hold0.gpio_hold0 |= BIT(rtcio_num + RTCIO_LL_GPIO_NUM_OFFSET);
}
/**
* Disable hold function on an RTC IO pad
*
* @note If disable the pad hold, the status of pad maybe changed in sleep mode.
* @param rtcio_num The index of rtcio. 0 ~ MAX(rtcio).
*/
static inline void rtcio_ll_force_hold_disable(int rtcio_num)
{
LP_AON.gpio_hold0.gpio_hold0 &= ~BIT(rtcio_num + RTCIO_LL_GPIO_NUM_OFFSET);
}
/**
* Enable force hold function for all RTC IO pads
*
* Enabling HOLD function will cause the pad to lock current status, such as,
* input/output enable, input/output value, function, drive strength values.
* This function is useful when going into light or deep sleep mode to prevent
* the pin configuration from changing.
*/
static inline void rtcio_ll_force_hold_all(void)
{
PMU.imm.pad_hold_all.tie_high_lp_pad_hold_all = 1;
}
/**
* Disable hold function fon all RTC IO pads
*
* @note If disable the pad hold, the status of pad maybe changed in sleep mode.
*/
static inline void rtcio_ll_force_unhold_all(void)
{
PMU.imm.pad_hold_all.tie_low_lp_pad_hold_all = 1;
}
#ifdef __cplusplus
}
#endif