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refactor(pcnt): add hal pcnt driver

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xiongyu
2019-11-18 14:35:46 +08:00
parent fb3d648e07
commit b1a72866ca
11 changed files with 1418 additions and 316 deletions
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components/driver/include/driver/pcnt.h
+43 -90
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@@ -1,5 +1,18 @@
#ifndef __PCNT_H__
#define __PCNT_H__
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include <esp_types.h>
#include "esp_intr_alloc.h"
@@ -8,92 +21,15 @@
#include "freertos/semphr.h"
#include "freertos/xtensa_api.h"
#include "soc/soc.h"
#include "soc/pcnt_periph.h"
#include "soc/pcnt_caps.h"
#include "driver/gpio.h"
#include "hal/pcnt_types.h"
#include "hal/pcnt_hal.h"
#ifdef __cplusplus
extern "C" {
#endif
#define PCNT_PIN_NOT_USED (-1) /*!< When selected for a pin, this pin will not be used */
/**
* @brief Selection of available modes that determine the counter's action depending on the state of the control signal's input GPIO
* @note Configuration covers two actions, one for high, and one for low level on the control input
*/
typedef enum {
PCNT_MODE_KEEP = 0, /*!< Control mode: won't change counter mode*/
PCNT_MODE_REVERSE = 1, /*!< Control mode: invert counter mode(increase -> decrease, decrease -> increase) */
PCNT_MODE_DISABLE = 2, /*!< Control mode: Inhibit counter(counter value will not change in this condition) */
PCNT_MODE_MAX
} pcnt_ctrl_mode_t;
/**
* @brief Selection of available modes that determine the counter's action on the edge of the pulse signal's input GPIO
* @note Configuration covers two actions, one for positive, and one for negative edge on the pulse input
*/
typedef enum {
PCNT_COUNT_DIS = 0, /*!< Counter mode: Inhibit counter(counter value will not change in this condition) */
PCNT_COUNT_INC = 1, /*!< Counter mode: Increase counter value */
PCNT_COUNT_DEC = 2, /*!< Counter mode: Decrease counter value */
PCNT_COUNT_MAX
} pcnt_count_mode_t;
/**
* @brief Selection of all available PCNT units
*/
typedef enum {
PCNT_UNIT_0 = 0, /*!< PCNT unit 0 */
PCNT_UNIT_1 = 1, /*!< PCNT unit 1 */
PCNT_UNIT_2 = 2, /*!< PCNT unit 2 */
PCNT_UNIT_3 = 3, /*!< PCNT unit 3 */
//ESP32-S2 only have 4 unit
#ifdef CONFIG_IDF_TARGET_ESP32
PCNT_UNIT_4 = 4, /*!< PCNT unit 4 */
PCNT_UNIT_5 = 5, /*!< PCNT unit 5 */
PCNT_UNIT_6 = 6, /*!< PCNT unit 6 */
PCNT_UNIT_7 = 7, /*!< PCNT unit 7 */
#endif
PCNT_UNIT_MAX,
} pcnt_unit_t;
/**
* @brief Selection of channels available for a single PCNT unit
*/
typedef enum {
PCNT_CHANNEL_0 = 0x00, /*!< PCNT channel 0 */
PCNT_CHANNEL_1 = 0x01, /*!< PCNT channel 1 */
PCNT_CHANNEL_MAX,
} pcnt_channel_t;
/**
* @brief Selection of counter's events the may trigger an interrupt
*/
typedef enum {
PCNT_EVT_THRES_1 = BIT(2), /*!< PCNT watch point event: threshold1 value event */
PCNT_EVT_THRES_0 = BIT(3), /*!< PCNT watch point event: threshold0 value event */
PCNT_EVT_L_LIM = BIT(4), /*!< PCNT watch point event: Minimum counter value */
PCNT_EVT_H_LIM = BIT(5), /*!< PCNT watch point event: Maximum counter value */
PCNT_EVT_ZERO = BIT(6), /*!< PCNT watch point event: counter value zero event */
PCNT_EVT_MAX
} pcnt_evt_type_t;
/**
* @brief Pulse Counter configuration for a single channel
*/
typedef struct {
int pulse_gpio_num; /*!< Pulse input GPIO number, if you want to use GPIO16, enter pulse_gpio_num = 16, a negative value will be ignored */
int ctrl_gpio_num; /*!< Control signal input GPIO number, a negative value will be ignored */
pcnt_ctrl_mode_t lctrl_mode; /*!< PCNT low control mode */
pcnt_ctrl_mode_t hctrl_mode; /*!< PCNT high control mode */
pcnt_count_mode_t pos_mode; /*!< PCNT positive edge count mode */
pcnt_count_mode_t neg_mode; /*!< PCNT negative edge count mode */
int16_t counter_h_lim; /*!< Maximum counter value */
int16_t counter_l_lim; /*!< Minimum counter value */
pcnt_unit_t unit; /*!< PCNT unit number */
pcnt_channel_t channel; /*!< the PCNT channel */
} pcnt_config_t;
typedef intr_handle_t pcnt_isr_handle_t;
/**
@@ -105,6 +41,7 @@ typedef intr_handle_t pcnt_isr_handle_t;
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver already initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_unit_config(const pcnt_config_t *pcnt_config);
@@ -115,11 +52,12 @@ esp_err_t pcnt_unit_config(const pcnt_config_t *pcnt_config);
* @param pcnt_unit Pulse Counter unit number
* @param count Pointer to accept counter value
*
* @return
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_get_counter_value(pcnt_unit_t pcnt_unit, int16_t* count);
esp_err_t pcnt_get_counter_value(pcnt_unit_t pcnt_unit, int16_t *count);
/**
* @brief Pause PCNT counter of PCNT unit
@@ -128,6 +66,7 @@ esp_err_t pcnt_get_counter_value(pcnt_unit_t pcnt_unit, int16_t* count);
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_counter_pause(pcnt_unit_t pcnt_unit);
@@ -139,6 +78,7 @@ esp_err_t pcnt_counter_pause(pcnt_unit_t pcnt_unit);
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_counter_resume(pcnt_unit_t pcnt_unit);
@@ -150,6 +90,7 @@ esp_err_t pcnt_counter_resume(pcnt_unit_t pcnt_unit);
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_counter_clear(pcnt_unit_t pcnt_unit);
@@ -164,6 +105,7 @@ esp_err_t pcnt_counter_clear(pcnt_unit_t pcnt_unit);
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_intr_enable(pcnt_unit_t pcnt_unit);
@@ -175,6 +117,7 @@ esp_err_t pcnt_intr_enable(pcnt_unit_t pcnt_unit);
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_intr_disable(pcnt_unit_t pcnt_unit);
@@ -187,6 +130,7 @@ esp_err_t pcnt_intr_disable(pcnt_unit_t pcnt_unit);
* All enabled events share the same interrupt (one interrupt per pulse counter unit).
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_event_enable(pcnt_unit_t unit, pcnt_evt_type_t evt_type);
@@ -199,6 +143,7 @@ esp_err_t pcnt_event_enable(pcnt_unit_t unit, pcnt_evt_type_t evt_type);
* All enabled events share the same interrupt (one interrupt per pulse counter unit).
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_event_disable(pcnt_unit_t unit, pcnt_evt_type_t evt_type);
@@ -214,6 +159,7 @@ esp_err_t pcnt_event_disable(pcnt_unit_t unit, pcnt_evt_type_t evt_type);
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_set_event_value(pcnt_unit_t unit, pcnt_evt_type_t evt_type, int16_t value);
@@ -228,6 +174,7 @@ esp_err_t pcnt_set_event_value(pcnt_unit_t unit, pcnt_evt_type_t evt_type, int16
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_get_event_value(pcnt_unit_t unit, pcnt_evt_type_t evt_type, int16_t *value);
@@ -250,7 +197,7 @@ esp_err_t pcnt_get_event_value(pcnt_unit_t unit, pcnt_evt_type_t evt_type, int16
* - ESP_ERR_NOT_FOUND Can not find the interrupt that matches the flags.
* - ESP_ERR_INVALID_ARG Function pointer error.
*/
esp_err_t pcnt_isr_register(void (*fn)(void*), void * arg, int intr_alloc_flags, pcnt_isr_handle_t *handle);
esp_err_t pcnt_isr_register(void (*fn)(void *), void *arg, int intr_alloc_flags, pcnt_isr_handle_t *handle);
/**
* @brief Configure PCNT pulse signal input pin and control input pin
@@ -264,6 +211,7 @@ esp_err_t pcnt_isr_register(void (*fn)(void*), void * arg, int intr_alloc_flags,
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_set_pin(pcnt_unit_t unit, pcnt_channel_t channel, int pulse_io, int ctrl_io);
@@ -275,6 +223,7 @@ esp_err_t pcnt_set_pin(pcnt_unit_t unit, pcnt_channel_t channel, int pulse_io, i
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_filter_enable(pcnt_unit_t unit);
@@ -286,6 +235,7 @@ esp_err_t pcnt_filter_enable(pcnt_unit_t unit);
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_filter_disable(pcnt_unit_t unit);
@@ -301,6 +251,7 @@ esp_err_t pcnt_filter_disable(pcnt_unit_t unit);
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_set_filter_value(pcnt_unit_t unit, uint16_t filter_val);
@@ -313,6 +264,7 @@ esp_err_t pcnt_set_filter_value(pcnt_unit_t unit, uint16_t filter_val);
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_get_filter_value(pcnt_unit_t unit, uint16_t *filter_val);
@@ -329,6 +281,7 @@ esp_err_t pcnt_get_filter_value(pcnt_unit_t unit, uint16_t *filter_val);
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_set_mode(pcnt_unit_t unit, pcnt_channel_t channel,
@@ -356,6 +309,7 @@ esp_err_t pcnt_set_mode(pcnt_unit_t unit, pcnt_channel_t channel,
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_isr_handler_add(pcnt_unit_t unit, void(*isr_handler)(void *), void *args);
@@ -364,13 +318,14 @@ esp_err_t pcnt_isr_handler_add(pcnt_unit_t unit, void(*isr_handler)(void *), voi
* @brief Install PCNT ISR service.
* @note We can manage different interrupt service for each unit.
* This function will use the default ISR handle service, Calling pcnt_isr_service_uninstall to
* uninstall the default service if needed. Please do not use pcnt_isr_register if this function was called.
* uninstall the default service if needed. Please do not use pcnt_isr_register if this function was called.
*
* @param intr_alloc_flags Flags used to allocate the interrupt. One or multiple (ORred)
* ESP_INTR_FLAG_* values. See esp_intr_alloc.h for more info.
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_NO_MEM No memory to install this service
* - ESP_ERR_INVALID_STATE ISR service already installed
*/
@@ -388,6 +343,7 @@ void pcnt_isr_service_uninstall(void);
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE pcnt driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pcnt_isr_handler_remove(pcnt_unit_t unit);
@@ -428,9 +384,6 @@ esp_err_t pcnt_isr_handler_remove(pcnt_unit_t unit);
* @}
*/
#ifdef __cplusplus
#ifdef __cplusplus
}
#endif
#endif