esp-idf/components/hal/esp32c2/include/hal/gpio_ll.h
songruojing c8c137f2b7 esp32h2: support GPIO peripheral, IO_MUX, GPIO matrix.
Generic GPIO example is supported as well.
2022-03-04 11:25:05 +08:00

568 lines
17 KiB
C

/*
* SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
/*******************************************************************************
* NOTICE
* The hal is not public api, don't use in application code.
* See readme.md in hal/include/hal/readme.md
******************************************************************************/
// The LL layer for ESP32-C2 GPIO register operations
#pragma once
#include "soc/soc.h"
#include "soc/gpio_periph.h"
#include "soc/rtc_cntl_reg.h"
#include "hal/gpio_types.h"
#include "hal/assert.h"
#include "stdlib.h"
#ifdef __cplusplus
extern "C" {
#endif
// Get GPIO hardware instance with giving gpio num
#define GPIO_LL_GET_HW(num) (((num) == 0) ? (&GPIO) : NULL)
#define GPIO_LL_PRO_CPU_INTR_ENA (BIT(0))
#define GPIO_LL_PRO_CPU_NMI_INTR_ENA (BIT(1))
/**
* @brief Enable pull-up on GPIO.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_pullup_en(gpio_dev_t *hw, gpio_num_t gpio_num)
{
REG_SET_BIT(GPIO_PIN_MUX_REG[gpio_num], FUN_PU);
}
/**
* @brief Disable pull-up on GPIO.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_pullup_dis(gpio_dev_t *hw, gpio_num_t gpio_num)
{
REG_CLR_BIT(GPIO_PIN_MUX_REG[gpio_num], FUN_PU);
}
/**
* @brief Enable pull-down on GPIO.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_pulldown_en(gpio_dev_t *hw, gpio_num_t gpio_num)
{
REG_SET_BIT(GPIO_PIN_MUX_REG[gpio_num], FUN_PD);
}
/**
* @brief Disable pull-down on GPIO.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_pulldown_dis(gpio_dev_t *hw, gpio_num_t gpio_num)
{
REG_CLR_BIT(GPIO_PIN_MUX_REG[gpio_num], FUN_PD);
}
/**
* @brief GPIO set interrupt trigger type
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number. If you want to set the trigger type of e.g. of GPIO16, gpio_num should be GPIO_NUM_16 (16);
* @param intr_type Interrupt type, select from gpio_int_type_t
*/
static inline void gpio_ll_set_intr_type(gpio_dev_t *hw, gpio_num_t gpio_num, gpio_int_type_t intr_type)
{
hw->pin[gpio_num].int_type = intr_type;
}
/**
* @brief Get GPIO interrupt status
*
* @param hw Peripheral GPIO hardware instance address.
* @param core_id interrupt core id
* @param status interrupt status
*/
static inline void gpio_ll_get_intr_status(gpio_dev_t *hw, uint32_t core_id, uint32_t *status)
{
*status = hw->pcpu_int.procpu_int;
}
/**
* @brief Get GPIO interrupt status high
*
* @param hw Peripheral GPIO hardware instance address.
* @param core_id interrupt core id
* @param status interrupt status high
*/
static inline void gpio_ll_get_intr_status_high(gpio_dev_t *hw, uint32_t core_id, uint32_t *status)
{
*status = 0; // Less than 32 GPIOs in ESP32-C2
}
/**
* @brief Clear GPIO interrupt status
*
* @param hw Peripheral GPIO hardware instance address.
* @param mask interrupt status clear mask
*/
static inline void gpio_ll_clear_intr_status(gpio_dev_t *hw, uint32_t mask)
{
hw->status_w1tc.status_w1tc = mask;
}
/**
* @brief Clear GPIO interrupt status high
*
* @param hw Peripheral GPIO hardware instance address.
* @param mask interrupt status high clear mask
*/
static inline void gpio_ll_clear_intr_status_high(gpio_dev_t *hw, uint32_t mask)
{
// Less than 32 GPIOs in ESP32-C2. Do nothing.
}
/**
* @brief Enable GPIO module interrupt signal
*
* @param hw Peripheral GPIO hardware instance address.
* @param core_id Interrupt enabled CPU to corresponding ID
* @param gpio_num GPIO number. If you want to enable the interrupt of e.g. GPIO16, gpio_num should be GPIO_NUM_16 (16);
*/
static inline void gpio_ll_intr_enable_on_core(gpio_dev_t *hw, uint32_t core_id, gpio_num_t gpio_num)
{
HAL_ASSERT(core_id == 0 && "target SoC only has a single core");
GPIO.pin[gpio_num].int_ena = GPIO_LL_PRO_CPU_INTR_ENA; //enable pro cpu intr
}
/**
* @brief Disable GPIO module interrupt signal
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number. If you want to disable the interrupt of e.g. GPIO16, gpio_num should be GPIO_NUM_16 (16);
*/
static inline void gpio_ll_intr_disable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
hw->pin[gpio_num].int_ena = 0; //disable GPIO intr
}
/**
* @brief Disable input mode on GPIO.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_input_disable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
PIN_INPUT_DISABLE(GPIO_PIN_MUX_REG[gpio_num]);
}
/**
* @brief Enable input mode on GPIO.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_input_enable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
PIN_INPUT_ENABLE(GPIO_PIN_MUX_REG[gpio_num]);
}
/**
* @brief Disable output mode on GPIO.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_output_disable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
hw->enable_w1tc.enable_w1tc = (0x1 << gpio_num);
// Ensure no other output signal is routed via GPIO matrix to this pin
REG_WRITE(GPIO_FUNC0_OUT_SEL_CFG_REG + (gpio_num * 4),
SIG_GPIO_OUT_IDX);
}
/**
* @brief Enable output mode on GPIO.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline __attribute__((always_inline)) void gpio_ll_output_enable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
hw->enable_w1ts.enable_w1ts = (0x1 << gpio_num);
}
/**
* @brief Disable open-drain mode on GPIO.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline __attribute__((always_inline)) void gpio_ll_od_disable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
hw->pin[gpio_num].pad_driver = 0;
}
/**
* @brief Enable open-drain mode on GPIO.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_od_enable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
hw->pin[gpio_num].pad_driver = 1;
}
/**
* @brief GPIO set output level
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number. If you want to set the output level of e.g. GPIO16, gpio_num should be GPIO_NUM_16 (16);
* @param level Output level. 0: low ; 1: high
*/
static inline void gpio_ll_set_level(gpio_dev_t *hw, gpio_num_t gpio_num, uint32_t level)
{
if (level) {
hw->out_w1ts.out_w1ts = (1 << gpio_num);
} else {
hw->out_w1tc.out_w1tc = (1 << gpio_num);
}
}
/**
* @brief GPIO get input level
*
* @warning If the pad is not configured for input (or input and output) the returned value is always 0.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number. If you want to get the logic level of e.g. pin GPIO16, gpio_num should be GPIO_NUM_16 (16);
*
* @return
* - 0 the GPIO input level is 0
* - 1 the GPIO input level is 1
*/
static inline int gpio_ll_get_level(gpio_dev_t *hw, gpio_num_t gpio_num)
{
return (hw->in.in_data_next >> gpio_num) & 0x1;
}
/**
* @brief Enable GPIO wake-up function.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number.
*/
static inline void gpio_ll_wakeup_enable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
hw->pin[gpio_num].wakeup_enable = 0x1;
}
/**
* @brief Disable GPIO wake-up function.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_wakeup_disable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
hw->pin[gpio_num].wakeup_enable = 0;
}
/**
* @brief Set GPIO pad drive capability
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number, only support output GPIOs
* @param strength Drive capability of the pad
*/
static inline void gpio_ll_set_drive_capability(gpio_dev_t *hw, gpio_num_t gpio_num, gpio_drive_cap_t strength)
{
SET_PERI_REG_BITS(GPIO_PIN_MUX_REG[gpio_num], FUN_DRV_V, strength, FUN_DRV_S);
}
/**
* @brief Get GPIO pad drive capability
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number, only support output GPIOs
* @param strength Pointer to accept drive capability of the pad
*/
static inline void gpio_ll_get_drive_capability(gpio_dev_t *hw, gpio_num_t gpio_num, gpio_drive_cap_t *strength)
{
*strength = (gpio_drive_cap_t)GET_PERI_REG_BITS2(GPIO_PIN_MUX_REG[gpio_num], FUN_DRV_V, FUN_DRV_S);
}
/**
* @brief Enable all digital gpio pad hold function during Deep-sleep.
*
* @param hw Peripheral GPIO hardware instance address.
*/
static inline void gpio_ll_deep_sleep_hold_en(gpio_dev_t *hw)
{
CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_DG_PAD_FORCE_UNHOLD);
SET_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_DG_PAD_AUTOHOLD_EN_M);
}
/**
* @brief Disable all digital gpio pad hold function during Deep-sleep.
*
* @param hw Peripheral GPIO hardware instance address.
*/
static inline void gpio_ll_deep_sleep_hold_dis(gpio_dev_t *hw)
{
SET_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_CLR_DG_PAD_AUTOHOLD);
}
/**
* @brief Enable gpio pad hold function.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number, only support output GPIOs
*/
static inline void gpio_ll_hold_en(gpio_dev_t *hw, gpio_num_t gpio_num)
{
if (gpio_num <= GPIO_NUM_5) {
REG_SET_BIT(RTC_CNTL_PAD_HOLD_REG, BIT(gpio_num));
} else {
SET_PERI_REG_MASK(RTC_CNTL_DIG_PAD_HOLD_REG, GPIO_HOLD_MASK[gpio_num]);
}
}
/**
* @brief Disable gpio pad hold function.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number, only support output GPIOs
*/
static inline void gpio_ll_hold_dis(gpio_dev_t *hw, gpio_num_t gpio_num)
{
if (gpio_num <= GPIO_NUM_5) {
REG_CLR_BIT(RTC_CNTL_PAD_HOLD_REG, BIT(gpio_num));
} else {
CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_PAD_HOLD_REG, GPIO_HOLD_MASK[gpio_num]);
}
}
/**
* @brief Set pad input to a peripheral signal through the IOMUX.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number of the pad.
* @param signal_idx Peripheral signal id to input. One of the ``*_IN_IDX`` signals in ``soc/gpio_sig_map.h``.
*/
static inline void gpio_ll_iomux_in(gpio_dev_t *hw, uint32_t gpio, uint32_t signal_idx)
{
hw->func_in_sel_cfg[signal_idx].sig_in_sel = 0;
PIN_INPUT_ENABLE(GPIO_PIN_MUX_REG[gpio]);
}
/**
* @brief Select a function for the pin in the IOMUX
*
* @param pin_name Pin name to configure
* @param func Function to assign to the pin
*/
static inline __attribute__((always_inline)) void gpio_ll_iomux_func_sel(uint32_t pin_name, uint32_t func)
{
PIN_FUNC_SELECT(pin_name, func);
}
/**
* @brief Set peripheral output to an GPIO pad through the IOMUX.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num gpio_num GPIO number of the pad.
* @param func The function number of the peripheral pin to output pin.
* One of the ``FUNC_X_*`` of specified pin (X) in ``soc/io_mux_reg.h``.
* @param oen_inv True if the output enable needs to be inverted, otherwise False.
*/
static inline void gpio_ll_iomux_out(gpio_dev_t *hw, uint8_t gpio_num, int func, uint32_t oen_inv)
{
hw->func_out_sel_cfg[gpio_num].oen_sel = 0;
hw->func_out_sel_cfg[gpio_num].oen_inv_sel = oen_inv;
gpio_ll_iomux_func_sel(GPIO_PIN_MUX_REG[gpio_num], func);
}
/**
* @brief Force hold digital and rtc gpio pad.
* @note GPIO force hold, whether the chip in sleep mode or wakeup mode.
*/
static inline void gpio_ll_force_hold_all(void)
{
CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_DG_PAD_FORCE_UNHOLD);
SET_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_DG_PAD_FORCE_HOLD);
SET_PERI_REG_MASK(RTC_CNTL_PWC_REG, RTC_CNTL_PAD_FORCE_HOLD_M);
}
/**
* @brief Force unhold digital and rtc gpio pad.
* @note GPIO force unhold, whether the chip in sleep mode or wakeup mode.
*/
static inline void gpio_ll_force_unhold_all(void)
{
CLEAR_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_DG_PAD_FORCE_HOLD);
CLEAR_PERI_REG_MASK(RTC_CNTL_PWC_REG, RTC_CNTL_PAD_FORCE_HOLD_M);
SET_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_DG_PAD_FORCE_UNHOLD);
SET_PERI_REG_MASK(RTC_CNTL_DIG_ISO_REG, RTC_CNTL_CLR_DG_PAD_AUTOHOLD);
}
/**
* @brief Enable GPIO pin used for wakeup from sleep.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_sleep_sel_en(gpio_dev_t *hw, gpio_num_t gpio_num)
{
PIN_SLP_SEL_ENABLE(GPIO_PIN_MUX_REG[gpio_num]);
}
/**
* @brief Disable GPIO pin used for wakeup from sleep.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_sleep_sel_dis(gpio_dev_t *hw, gpio_num_t gpio_num)
{
PIN_SLP_SEL_DISABLE(GPIO_PIN_MUX_REG[gpio_num]);
}
/**
* @brief Disable GPIO pull-up in sleep mode.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_sleep_pullup_dis(gpio_dev_t *hw, gpio_num_t gpio_num)
{
PIN_SLP_PULLUP_DISABLE(GPIO_PIN_MUX_REG[gpio_num]);
}
/**
* @brief Enable GPIO pull-up in sleep mode.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_sleep_pullup_en(gpio_dev_t *hw, gpio_num_t gpio_num)
{
PIN_SLP_PULLUP_ENABLE(GPIO_PIN_MUX_REG[gpio_num]);
}
/**
* @brief Enable GPIO pull-down in sleep mode.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_sleep_pulldown_en(gpio_dev_t *hw, gpio_num_t gpio_num)
{
PIN_SLP_PULLDOWN_ENABLE(GPIO_PIN_MUX_REG[gpio_num]);
}
/**
* @brief Disable GPIO pull-down in sleep mode.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_sleep_pulldown_dis(gpio_dev_t *hw, gpio_num_t gpio_num)
{
PIN_SLP_PULLDOWN_DISABLE(GPIO_PIN_MUX_REG[gpio_num]);
}
/**
* @brief Disable GPIO input in sleep mode.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_sleep_input_disable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
PIN_SLP_INPUT_DISABLE(GPIO_PIN_MUX_REG[gpio_num]);
}
/**
* @brief Enable GPIO input in sleep mode.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_sleep_input_enable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
PIN_SLP_INPUT_ENABLE(GPIO_PIN_MUX_REG[gpio_num]);
}
/**
* @brief Disable GPIO output in sleep mode.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_sleep_output_disable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
PIN_SLP_OUTPUT_DISABLE(GPIO_PIN_MUX_REG[gpio_num]);
}
/**
* @brief Enable GPIO output in sleep mode.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_sleep_output_enable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
PIN_SLP_OUTPUT_ENABLE(GPIO_PIN_MUX_REG[gpio_num]);
}
/**
* @brief Enable GPIO deep-sleep wake-up function.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number.
* @param intr_type GPIO wake-up type. Only GPIO_INTR_LOW_LEVEL or GPIO_INTR_HIGH_LEVEL can be used.
*/
static inline void gpio_ll_deepsleep_wakeup_enable(gpio_dev_t *hw, gpio_num_t gpio_num, gpio_int_type_t intr_type)
{
HAL_ASSERT(gpio_num <= GPIO_NUM_5 && "gpio larger than 5 does not support deep sleep wake-up function");
REG_SET_BIT(RTC_CNTL_GPIO_WAKEUP_REG, RTC_CNTL_GPIO_PIN_CLK_GATE);
REG_SET_BIT(RTC_CNTL_EXT_WAKEUP_CONF_REG, RTC_CNTL_GPIO_WAKEUP_FILTER);
SET_PERI_REG_MASK(RTC_CNTL_GPIO_WAKEUP_REG, 1 << (RTC_CNTL_GPIO_PIN0_WAKEUP_ENABLE_S - gpio_num));
uint32_t reg = REG_READ(RTC_CNTL_GPIO_WAKEUP_REG);
reg &= (~(RTC_CNTL_GPIO_PIN0_INT_TYPE_V << (RTC_CNTL_GPIO_PIN0_INT_TYPE_S - gpio_num * 3)));
reg |= (intr_type << (RTC_CNTL_GPIO_PIN0_INT_TYPE_S - gpio_num * 3));
REG_WRITE(RTC_CNTL_GPIO_WAKEUP_REG, reg);
}
/**
* @brief Disable GPIO deep-sleep wake-up function.
*
* @param hw Peripheral GPIO hardware instance address.
* @param gpio_num GPIO number
*/
static inline void gpio_ll_deepsleep_wakeup_disable(gpio_dev_t *hw, gpio_num_t gpio_num)
{
HAL_ASSERT(gpio_num <= GPIO_NUM_5 && "gpio larger than 5 does not support deep sleep wake-up function");
CLEAR_PERI_REG_MASK(RTC_CNTL_GPIO_WAKEUP_REG, 1 << (RTC_CNTL_GPIO_PIN0_WAKEUP_ENABLE_S - gpio_num));
CLEAR_PERI_REG_MASK(RTC_CNTL_GPIO_WAKEUP_REG, RTC_CNTL_GPIO_PIN0_INT_TYPE_S - gpio_num * 3);
}
#ifdef __cplusplus
}
#endif