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esp-idf/components/driver/pcnt.c
Michael (XIAO Xufeng) 647dea9395 soc: combine xxx_caps.h into one soc_caps.h 
During HAL layer refactoring and new chip bringup, we have several
caps.h for each part, to reduce the conflicts to minimum. But this is
The capabilities headers will be relataive stable once completely
written (maybe after the featues are supported by drivers).

Now ESP32 and ESP32-S2 drivers are relative stable, making it a good
time to combine all these caps.h into one soc_caps.h

This cleanup also move HAL config and pin config into separated files,
to make the responsibilities of these headers more clear. This is
helpful for the stabilities of soc_caps.h because we want to make it
public some day.
2020-10-17 16:10:15 +08:00

530 lines
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// 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.
#include "soc/soc_caps.h"
#include "freertos/FreeRTOS.h"
#include "freertos/semphr.h"
#include "freertos/xtensa_api.h"
#include "esp_log.h"
#include "driver/pcnt.h"
#include "driver/periph_ctrl.h"
#include "hal/pcnt_hal.h"
#include "esp_rom_gpio.h"
#define PCNT_CHANNEL_ERR_STR "PCNT CHANNEL ERROR"
#define PCNT_UNIT_ERR_STR "PCNT UNIT ERROR"
#define PCNT_GPIO_ERR_STR "PCNT GPIO NUM ERROR"
#define PCNT_ADDRESS_ERR_STR "PCNT ADDRESS ERROR"
#define PCNT_PARAM_ERR_STR "PCNT PARAM ERROR"
#define PCNT_COUNT_MODE_ERR_STR "PCNT COUNTER MODE ERROR"
#define PCNT_CTRL_MODE_ERR_STR "PCNT CTRL MODE ERROR"
#define PCNT_EVT_TYPE_ERR_STR "PCNT value type error"
#define PCNT_LIMT_VAL_ERR_STR "PCNT limit value error"
#define PCNT_NUM_ERR_STR "PCNT num error"
#define PCNT_DRIVER_ERR_STR "PCNT driver error"
#define PCNT_ENTER_CRITICAL(mux) portENTER_CRITICAL(mux)
#define PCNT_EXIT_CRITICAL(mux) portEXIT_CRITICAL(mux)
static const char *TAG = "pcnt";
#define PCNT_CHECK(a, str, ret_val) \
if (!(a)) { \
ESP_LOGE(TAG,"%s(%d): %s", __FUNCTION__, __LINE__, str); \
return (ret_val); \
}
typedef struct {
pcnt_hal_context_t hal; /*!< PCNT hal context*/
} pcnt_obj_t;
static pcnt_obj_t *p_pcnt_obj[PCNT_PORT_MAX] = {0};
#define PCNT_OBJ_CHECK(pcnt_port) { \
PCNT_CHECK((pcnt_port < PCNT_PORT_MAX), PCNT_NUM_ERR_STR, ESP_ERR_INVALID_ARG); \
PCNT_CHECK((p_pcnt_obj[pcnt_port]), PCNT_DRIVER_ERR_STR, ESP_ERR_INVALID_STATE); \
}
typedef struct {
void(*fn)(void *args); /*!< isr function */
void *args; /*!< isr function args */
} pcnt_isr_func_t;
static pcnt_isr_func_t *pcnt_isr_func = NULL;
static pcnt_isr_handle_t pcnt_isr_service = NULL;
static portMUX_TYPE pcnt_spinlock = portMUX_INITIALIZER_UNLOCKED;
static inline esp_err_t _pcnt_set_mode(pcnt_port_t pcnt_port, pcnt_unit_t unit, pcnt_channel_t channel, pcnt_count_mode_t pos_mode, pcnt_count_mode_t neg_mode, pcnt_ctrl_mode_t hctrl_mode, pcnt_ctrl_mode_t lctrl_mode)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(channel < PCNT_CHANNEL_MAX, PCNT_CHANNEL_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK((pos_mode < PCNT_COUNT_MAX) && (neg_mode < PCNT_COUNT_MAX), PCNT_COUNT_MODE_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK((hctrl_mode < PCNT_MODE_MAX) && (lctrl_mode < PCNT_MODE_MAX), PCNT_CTRL_MODE_ERR_STR, ESP_ERR_INVALID_ARG);
pcnt_hal_set_mode(&(p_pcnt_obj[pcnt_port]->hal), unit, channel, pos_mode, neg_mode, hctrl_mode, lctrl_mode);
return ESP_OK;
}
static inline esp_err_t _pcnt_set_pin(pcnt_port_t pcnt_port, pcnt_unit_t unit, pcnt_channel_t channel, int pulse_io, int ctrl_io)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(channel < PCNT_CHANNEL_MAX, PCNT_CHANNEL_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(GPIO_IS_VALID_GPIO(pulse_io) || pulse_io < 0, PCNT_GPIO_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(GPIO_IS_VALID_GPIO(ctrl_io) || ctrl_io < 0, PCNT_GPIO_ERR_STR, ESP_ERR_INVALID_ARG);
int sig_base = (channel == 0) ? PCNT_SIG_CH0_IN0_IDX : PCNT_SIG_CH1_IN0_IDX;
int ctrl_base = (channel == 0) ? PCNT_CTRL_CH0_IN0_IDX : PCNT_CTRL_CH1_IN0_IDX;
if (unit > 4) {
sig_base += 12; // GPIO matrix assignments have a gap between units 4 & 5
ctrl_base += 12;
}
int input_sig_index = sig_base + (4 * unit);
int ctrl_sig_index = ctrl_base + (4 * unit);
if (pulse_io >= 0) {
PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[pulse_io], PIN_FUNC_GPIO);
gpio_set_direction(pulse_io, GPIO_MODE_INPUT);
gpio_set_pull_mode(pulse_io, GPIO_PULLUP_ONLY);
esp_rom_gpio_connect_in_signal(pulse_io, input_sig_index, 0);
}
if (ctrl_io >= 0) {
PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[ctrl_io], PIN_FUNC_GPIO);
gpio_set_direction(ctrl_io, GPIO_MODE_INPUT);
gpio_set_pull_mode(ctrl_io, GPIO_PULLUP_ONLY);
esp_rom_gpio_connect_in_signal(ctrl_io, ctrl_sig_index, 0);
}
return ESP_OK;
}
static inline esp_err_t _pcnt_get_counter_value(pcnt_port_t pcnt_port, pcnt_unit_t pcnt_unit, int16_t *count)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(pcnt_unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(count != NULL, PCNT_ADDRESS_ERR_STR, ESP_ERR_INVALID_ARG);
pcnt_hal_get_counter_value(&(p_pcnt_obj[pcnt_port]->hal), pcnt_unit, count);
return ESP_OK;
}
static inline esp_err_t _pcnt_counter_pause(pcnt_port_t pcnt_port, pcnt_unit_t pcnt_unit)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(pcnt_unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_ENTER_CRITICAL(&pcnt_spinlock);
pcnt_hal_counter_pause(&(p_pcnt_obj[pcnt_port]->hal), pcnt_unit);
PCNT_EXIT_CRITICAL(&pcnt_spinlock);
return ESP_OK;
}
static inline esp_err_t _pcnt_counter_resume(pcnt_port_t pcnt_port, pcnt_unit_t pcnt_unit)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(pcnt_unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_ENTER_CRITICAL(&pcnt_spinlock);
pcnt_hal_counter_resume(&(p_pcnt_obj[pcnt_port]->hal), pcnt_unit);
PCNT_EXIT_CRITICAL(&pcnt_spinlock);
return ESP_OK;
}
static inline esp_err_t _pcnt_counter_clear(pcnt_port_t pcnt_port, pcnt_unit_t pcnt_unit)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(pcnt_unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_ENTER_CRITICAL(&pcnt_spinlock);
pcnt_hal_counter_clear(&(p_pcnt_obj[pcnt_port]->hal), pcnt_unit);
PCNT_EXIT_CRITICAL(&pcnt_spinlock);
return ESP_OK;
}
static inline esp_err_t _pcnt_intr_enable(pcnt_port_t pcnt_port, pcnt_unit_t pcnt_unit)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(pcnt_unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_ENTER_CRITICAL(&pcnt_spinlock);
pcnt_hal_intr_enable(&(p_pcnt_obj[pcnt_port]->hal), pcnt_unit);
PCNT_EXIT_CRITICAL(&pcnt_spinlock);
return ESP_OK;
}
static inline esp_err_t _pcnt_intr_disable(pcnt_port_t pcnt_port, pcnt_unit_t pcnt_unit)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(pcnt_unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_ENTER_CRITICAL(&pcnt_spinlock);
pcnt_hal_intr_disable(&(p_pcnt_obj[pcnt_port]->hal), pcnt_unit);
PCNT_EXIT_CRITICAL(&pcnt_spinlock);
return ESP_OK;
}
static inline esp_err_t _pcnt_event_enable(pcnt_port_t pcnt_port, pcnt_unit_t unit, pcnt_evt_type_t evt_type)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(evt_type < PCNT_EVT_MAX, PCNT_EVT_TYPE_ERR_STR, ESP_ERR_INVALID_ARG);
pcnt_hal_event_enable(&(p_pcnt_obj[pcnt_port]->hal), unit, evt_type);
return ESP_OK;
}
static inline esp_err_t _pcnt_event_disable(pcnt_port_t pcnt_port, pcnt_unit_t unit, pcnt_evt_type_t evt_type)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(evt_type < PCNT_EVT_MAX, PCNT_EVT_TYPE_ERR_STR, ESP_ERR_INVALID_ARG);
pcnt_hal_event_disable(&(p_pcnt_obj[pcnt_port]->hal), unit, evt_type);
return ESP_OK;
}
static inline esp_err_t _pcnt_set_event_value(pcnt_port_t pcnt_port, pcnt_unit_t unit, pcnt_evt_type_t evt_type, int16_t value)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(evt_type < PCNT_EVT_MAX, PCNT_EVT_TYPE_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(!(evt_type == PCNT_EVT_L_LIM && value > 0), PCNT_LIMT_VAL_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(!(evt_type == PCNT_EVT_H_LIM && value < 0), PCNT_LIMT_VAL_ERR_STR, ESP_ERR_INVALID_ARG);
pcnt_hal_set_event_value(&(p_pcnt_obj[pcnt_port]->hal), unit, evt_type, value);
return ESP_OK;
}
static inline esp_err_t _pcnt_get_event_value(pcnt_port_t pcnt_port, pcnt_unit_t unit, pcnt_evt_type_t evt_type, int16_t *value)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(evt_type < PCNT_EVT_MAX, PCNT_EVT_TYPE_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(value != NULL, PCNT_ADDRESS_ERR_STR, ESP_ERR_INVALID_ARG);
pcnt_hal_get_event_value(&(p_pcnt_obj[pcnt_port]->hal), unit, evt_type, value);
return ESP_OK;
}
static inline esp_err_t _pcnt_set_filter_value(pcnt_port_t pcnt_port, pcnt_unit_t unit, uint16_t filter_val)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(filter_val < 1024, PCNT_PARAM_ERR_STR, ESP_ERR_INVALID_ARG);
pcnt_hal_set_filter_value(&(p_pcnt_obj[pcnt_port]->hal), unit, filter_val);
return ESP_OK;
}
static inline esp_err_t _pcnt_get_filter_value(pcnt_port_t pcnt_port, pcnt_unit_t unit, uint16_t *filter_val)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(filter_val != NULL, PCNT_ADDRESS_ERR_STR, ESP_ERR_INVALID_ARG);
pcnt_hal_get_filter_value(&(p_pcnt_obj[pcnt_port]->hal), unit, filter_val);
return ESP_OK;
}
static inline esp_err_t _pcnt_filter_enable(pcnt_port_t pcnt_port, pcnt_unit_t unit)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
pcnt_hal_filter_enable(&(p_pcnt_obj[pcnt_port]->hal), unit);
return ESP_OK;
}
static inline esp_err_t _pcnt_filter_disable(pcnt_port_t pcnt_port, pcnt_unit_t unit)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
pcnt_hal_filter_disable(&(p_pcnt_obj[pcnt_port]->hal), unit);
return ESP_OK;
}
static inline esp_err_t _pcnt_isr_handler_add(pcnt_port_t pcnt_port, pcnt_unit_t unit, void(*isr_handler)(void *), void *args)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(pcnt_isr_func != NULL, "ISR service is not installed, call pcnt_install_isr_service() first", ESP_ERR_INVALID_STATE);
PCNT_CHECK(unit < PCNT_UNIT_MAX, "PCNT unit error", ESP_ERR_INVALID_ARG);
PCNT_ENTER_CRITICAL(&pcnt_spinlock);
_pcnt_intr_disable(PCNT_PORT_0, unit);
if (pcnt_isr_func) {
pcnt_isr_func[unit].fn = isr_handler;
pcnt_isr_func[unit].args = args;
}
_pcnt_intr_enable(PCNT_PORT_0, unit);
PCNT_EXIT_CRITICAL(&pcnt_spinlock);
return ESP_OK;
}
static inline esp_err_t _pcnt_isr_handler_remove(pcnt_port_t pcnt_port, pcnt_unit_t unit)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(pcnt_isr_func != NULL, "ISR service is not installed", ESP_ERR_INVALID_STATE);
PCNT_CHECK(unit < PCNT_UNIT_MAX, "PCNT unit error", ESP_ERR_INVALID_ARG);
PCNT_ENTER_CRITICAL(&pcnt_spinlock);
_pcnt_intr_disable(PCNT_PORT_0, unit);
if (pcnt_isr_func) {
pcnt_isr_func[unit].fn = NULL;
pcnt_isr_func[unit].args = NULL;
}
PCNT_EXIT_CRITICAL(&pcnt_spinlock);
return ESP_OK;
}
// pcnt interrupt service
static void IRAM_ATTR pcnt_intr_service(void *arg)
{
uint32_t status;
pcnt_port_t pcnt_port = (pcnt_port_t)arg;
pcnt_hal_get_intr_status(&(p_pcnt_obj[pcnt_port]->hal), &status);
while (status) {
int unit = __builtin_ffs(status) - 1;
status &= ~(1 << unit);
if (pcnt_isr_func[unit].fn != NULL) {
(pcnt_isr_func[unit].fn)(pcnt_isr_func[unit].args);
}
}
pcnt_hal_clear_intr_status(&(p_pcnt_obj[pcnt_port]->hal), status);
}
static inline esp_err_t _pcnt_isr_service_install(pcnt_port_t pcnt_port, int intr_alloc_flags)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(pcnt_isr_func == NULL, "ISR service already installed", ESP_ERR_INVALID_STATE);
esp_err_t ret = ESP_FAIL;
pcnt_isr_func = (pcnt_isr_func_t *) calloc(PCNT_UNIT_MAX, sizeof(pcnt_isr_func_t));
if (pcnt_isr_func == NULL) {
ret = ESP_ERR_NO_MEM;
} else {
ret = pcnt_isr_register(pcnt_intr_service, (void *)pcnt_port, intr_alloc_flags, &pcnt_isr_service);
if (ret != ESP_OK) {
ESP_LOGE(TAG, "pcnt isr registration failed, maybe you need `pcnt_isr_unregister` to unregister your isr");
free(pcnt_isr_func);
pcnt_isr_func = NULL;
}
}
return ret;
}
static inline esp_err_t _pcnt_isr_service_uninstall(pcnt_port_t pcnt_port)
{
PCNT_OBJ_CHECK(pcnt_port);
PCNT_CHECK(pcnt_isr_func != NULL, "ISR Service not installed yet.", ESP_ERR_INVALID_STATE);
esp_err_t ret = ESP_FAIL;
ret = pcnt_isr_unregister(pcnt_isr_service);
free(pcnt_isr_func);
pcnt_isr_func = NULL;
pcnt_isr_service = NULL;
return ret;
}
static inline esp_err_t _pcnt_unit_config(pcnt_port_t pcnt_port, const pcnt_config_t *pcnt_config)
{
PCNT_OBJ_CHECK(pcnt_port);
uint8_t unit = pcnt_config->unit;
uint8_t channel = pcnt_config->channel;
int input_io = pcnt_config->pulse_gpio_num;
int ctrl_io = pcnt_config->ctrl_gpio_num;
PCNT_CHECK(unit < PCNT_UNIT_MAX, PCNT_UNIT_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(channel < PCNT_CHANNEL_MAX, PCNT_CHANNEL_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK(input_io < 0 || (GPIO_IS_VALID_GPIO(input_io) && (input_io != ctrl_io)), "PCNT pulse input io error", ESP_ERR_INVALID_ARG);
PCNT_CHECK(ctrl_io < 0 || GPIO_IS_VALID_GPIO(ctrl_io), "PCNT ctrl io error", ESP_ERR_INVALID_ARG);
PCNT_CHECK((pcnt_config->pos_mode < PCNT_COUNT_MAX) && (pcnt_config->neg_mode < PCNT_COUNT_MAX), PCNT_COUNT_MODE_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK((pcnt_config->hctrl_mode < PCNT_MODE_MAX) && (pcnt_config->lctrl_mode < PCNT_MODE_MAX), PCNT_CTRL_MODE_ERR_STR, ESP_ERR_INVALID_ARG);
/*Enalbe hardware module*/
static bool pcnt_enable = false;
if (pcnt_enable == false) {
periph_module_reset(PERIPH_PCNT_MODULE);
pcnt_enable = true;
}
periph_module_enable(PERIPH_PCNT_MODULE);
/*Set counter range*/
_pcnt_set_event_value(pcnt_port, unit, PCNT_EVT_H_LIM, pcnt_config->counter_h_lim);
_pcnt_set_event_value(pcnt_port, unit, PCNT_EVT_L_LIM, pcnt_config->counter_l_lim);
/*Default value after reboot is positive, we disable these events like others*/
_pcnt_event_disable(pcnt_port, unit, PCNT_EVT_H_LIM);
_pcnt_event_disable(pcnt_port, unit, PCNT_EVT_L_LIM);
_pcnt_event_disable(pcnt_port, unit, PCNT_EVT_ZERO);
_pcnt_filter_disable(pcnt_port, unit);
/*set pulse input and control mode*/
_pcnt_set_mode(pcnt_port, unit, channel, pcnt_config->pos_mode, pcnt_config->neg_mode, pcnt_config->hctrl_mode, pcnt_config->lctrl_mode);
/*Set pulse input and control pins*/
_pcnt_set_pin(pcnt_port, unit, channel, input_io, ctrl_io);
return ESP_OK;
}
esp_err_t pcnt_deinit(pcnt_port_t pcnt_port)
{
PCNT_OBJ_CHECK(pcnt_port);
heap_caps_free(p_pcnt_obj[pcnt_port]);
p_pcnt_obj[pcnt_port] = NULL;
return ESP_OK;
}
esp_err_t pcnt_init(pcnt_port_t pcnt_port)
{
PCNT_CHECK((pcnt_port < PCNT_PORT_MAX), PCNT_NUM_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_CHECK((p_pcnt_obj[pcnt_port]) == NULL, "pcnt driver already initted", ESP_ERR_INVALID_STATE);
p_pcnt_obj[pcnt_port] = (pcnt_obj_t *)heap_caps_calloc(1, sizeof(pcnt_obj_t), MALLOC_CAP_DEFAULT);
if (p_pcnt_obj[pcnt_port] == NULL) {
ESP_LOGE(TAG, "PCNT driver malloc error");
return ESP_FAIL;
}
pcnt_hal_init(&(p_pcnt_obj[pcnt_port]->hal), pcnt_port);
return ESP_OK;
}
// TODO: The following functions are wrappers, for compatibility with current API.
esp_err_t pcnt_unit_config(const pcnt_config_t *pcnt_config)
{
esp_err_t ret;
if ((p_pcnt_obj[PCNT_PORT_0]) == NULL) {
ret = pcnt_init(PCNT_PORT_0);
if (ret != ESP_OK) {
return ret;
}
}
return _pcnt_unit_config(PCNT_PORT_0, pcnt_config);
}
esp_err_t pcnt_set_mode(pcnt_unit_t unit, pcnt_channel_t channel, pcnt_count_mode_t pos_mode, pcnt_count_mode_t neg_mode, pcnt_ctrl_mode_t hctrl_mode, pcnt_ctrl_mode_t lctrl_mode)
{
return _pcnt_set_mode(PCNT_PORT_0, unit, channel, pos_mode, neg_mode, hctrl_mode, lctrl_mode);
}
esp_err_t pcnt_set_pin(pcnt_unit_t unit, pcnt_channel_t channel, int pulse_io, int ctrl_io)
{
return _pcnt_set_pin(PCNT_PORT_0, unit, channel, pulse_io, ctrl_io);
}
esp_err_t pcnt_get_counter_value(pcnt_unit_t pcnt_unit, int16_t *count)
{
return _pcnt_get_counter_value(PCNT_PORT_0, pcnt_unit, count);
}
esp_err_t pcnt_counter_pause(pcnt_unit_t pcnt_unit)
{
return _pcnt_counter_pause(PCNT_PORT_0, pcnt_unit);
}
esp_err_t pcnt_counter_resume(pcnt_unit_t pcnt_unit)
{
return _pcnt_counter_resume(PCNT_PORT_0, pcnt_unit);
}
esp_err_t pcnt_counter_clear(pcnt_unit_t pcnt_unit)
{
return _pcnt_counter_clear(PCNT_PORT_0, pcnt_unit);
}
esp_err_t pcnt_intr_enable(pcnt_unit_t pcnt_unit)
{
return _pcnt_intr_enable(PCNT_PORT_0, pcnt_unit);
}
esp_err_t pcnt_intr_disable(pcnt_unit_t pcnt_unit)
{
return _pcnt_intr_disable(PCNT_PORT_0, pcnt_unit);
}
esp_err_t pcnt_event_enable(pcnt_unit_t unit, pcnt_evt_type_t evt_type)
{
return _pcnt_event_enable(PCNT_PORT_0, unit, evt_type);
}
esp_err_t pcnt_event_disable(pcnt_unit_t unit, pcnt_evt_type_t evt_type)
{
return _pcnt_event_disable(PCNT_PORT_0, unit, evt_type);
}
esp_err_t pcnt_set_event_value(pcnt_unit_t unit, pcnt_evt_type_t evt_type, int16_t value)
{
return _pcnt_set_event_value(PCNT_PORT_0, unit, evt_type, value);
}
esp_err_t pcnt_get_event_value(pcnt_unit_t unit, pcnt_evt_type_t evt_type, int16_t *value)
{
return _pcnt_get_event_value(PCNT_PORT_0, unit, evt_type, value);
}
esp_err_t pcnt_set_filter_value(pcnt_unit_t unit, uint16_t filter_val)
{
return _pcnt_set_filter_value(PCNT_PORT_0, unit, filter_val);
}
esp_err_t pcnt_get_filter_value(pcnt_unit_t unit, uint16_t *filter_val)
{
return _pcnt_get_filter_value(PCNT_PORT_0, unit, filter_val);
}
esp_err_t pcnt_filter_enable(pcnt_unit_t unit)
{
return _pcnt_filter_enable(PCNT_PORT_0, unit);
}
esp_err_t pcnt_filter_disable(pcnt_unit_t unit)
{
return _pcnt_filter_disable(PCNT_PORT_0, unit);
}
esp_err_t pcnt_isr_unregister(pcnt_isr_handle_t handle)
{
esp_err_t ret = ESP_FAIL;
PCNT_ENTER_CRITICAL(&pcnt_spinlock);
ret = esp_intr_free(handle);
PCNT_EXIT_CRITICAL(&pcnt_spinlock);
return ret;
}
esp_err_t pcnt_isr_register(void (*fun)(void *), void *arg, int intr_alloc_flags, pcnt_isr_handle_t *handle)
{
esp_err_t ret = ESP_FAIL;
PCNT_CHECK(fun != NULL, PCNT_ADDRESS_ERR_STR, ESP_ERR_INVALID_ARG);
PCNT_ENTER_CRITICAL(&pcnt_spinlock);
ret = esp_intr_alloc(ETS_PCNT_INTR_SOURCE, intr_alloc_flags, fun, arg, handle);
PCNT_EXIT_CRITICAL(&pcnt_spinlock);
return ret;
}
esp_err_t pcnt_isr_handler_add(pcnt_unit_t unit, void(*isr_handler)(void *), void *args)
{
return _pcnt_isr_handler_add(PCNT_PORT_0, unit, isr_handler, args);
}
esp_err_t pcnt_isr_handler_remove(pcnt_unit_t unit)
{
return _pcnt_isr_handler_remove(PCNT_PORT_0, unit);
}
esp_err_t pcnt_isr_service_install(int intr_alloc_flags)
{
return _pcnt_isr_service_install(PCNT_PORT_0, intr_alloc_flags);
}
void pcnt_isr_service_uninstall()
{
_pcnt_isr_service_uninstall(PCNT_PORT_0);
}
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