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add some code

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苏雨洛
2025-09-05 13:25:11 +08:00
parent 9ff0a99e7a
commit 3cf1229a85
8911 changed files with 2535396 additions and 0 deletions
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managed_components/espressif__button/button_adc.c Normal file
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/* SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <string.h>
#include <inttypes.h>
#include "esp_log.h"
#include "esp_check.h"
#include "esp_timer.h"
#include "esp_idf_version.h"
#include "soc/soc_caps.h"
#include "esp_adc/adc_oneshot.h"
#include "esp_adc/adc_cali.h"
#include "esp_adc/adc_cali_scheme.h"
#include "button_adc.h"
#include "button_interface.h"
static const char *TAG = "adc_button";
#define DEFAULT_VREF 1100
#define NO_OF_SAMPLES CONFIG_ADC_BUTTON_SAMPLE_TIMES //Multisampling
/*!< Using atten bigger than 6db by default, it will be 11db or 12db in different target */
#define DEFAULT_ADC_ATTEN (ADC_ATTEN_DB_6 + 1)
#define ADC_BUTTON_WIDTH SOC_ADC_RTC_MAX_BITWIDTH
#define ADC_BUTTON_CHANNEL_MAX SOC_ADC_MAX_CHANNEL_NUM
#define ADC_BUTTON_ATTEN DEFAULT_ADC_ATTEN
#define ADC_BUTTON_MAX_CHANNEL CONFIG_ADC_BUTTON_MAX_CHANNEL
#define ADC_BUTTON_MAX_BUTTON CONFIG_ADC_BUTTON_MAX_BUTTON_PER_CHANNEL
// ESP32C3 ADC2 it has been deprecated.
#if (SOC_ADC_PERIPH_NUM >= 2) && !CONFIG_IDF_TARGET_ESP32C3
#define ADC_UNIT_NUM 2
#else
#define ADC_UNIT_NUM 1
#endif
typedef struct {
uint16_t min;
uint16_t max;
} button_data_t;
typedef struct {
uint8_t channel;
uint8_t is_init;
button_data_t btns[ADC_BUTTON_MAX_BUTTON]; /* all button on the channel */
uint64_t last_time; /* the last time of adc sample */
} btn_adc_channel_t;
typedef enum {
ADC_NONE_INIT = 0,
ADC_INIT_BY_ADC_BUTTON,
ADC_INIT_BY_USER,
} adc_init_info_t;
typedef struct {
adc_init_info_t is_configured;
adc_cali_handle_t adc_cali_handle;
adc_oneshot_unit_handle_t adc_handle;
btn_adc_channel_t ch[ADC_BUTTON_MAX_CHANNEL];
uint8_t ch_num;
} btn_adc_unit_t;
typedef struct {
btn_adc_unit_t unit[ADC_UNIT_NUM];
} button_adc_t;
typedef struct {
button_driver_t base;
adc_unit_t unit_id;
uint32_t ch;
uint32_t index;
} button_adc_obj;
static button_adc_t g_button = {0};
static int find_unused_channel(adc_unit_t unit_id)
{
for (size_t i = 0; i < ADC_BUTTON_MAX_CHANNEL; i++) {
if (0 == g_button.unit[unit_id].ch[i].is_init) {
return i;
}
}
return -1;
}
static int find_channel(adc_unit_t unit_id, uint8_t channel)
{
for (size_t i = 0; i < ADC_BUTTON_MAX_CHANNEL; i++) {
if (channel == g_button.unit[unit_id].ch[i].channel) {
return i;
}
}
return -1;
}
static bool adc_calibration_init(adc_unit_t unit, adc_atten_t atten, adc_cali_handle_t *out_handle)
{
adc_cali_handle_t handle = NULL;
esp_err_t ret = ESP_ERR_NOT_SUPPORTED;
bool calibrated = false;
#if ADC_CALI_SCHEME_CURVE_FITTING_SUPPORTED
if (!calibrated) {
ESP_LOGI(TAG, "calibration scheme version is %s", "Curve Fitting");
adc_cali_curve_fitting_config_t cali_config = {
.unit_id = unit,
.atten = atten,
.bitwidth = ADC_BUTTON_WIDTH,
};
ret = adc_cali_create_scheme_curve_fitting(&cali_config, &handle);
if (ret == ESP_OK) {
calibrated = true;
}
}
#endif
#if ADC_CALI_SCHEME_LINE_FITTING_SUPPORTED
if (!calibrated) {
ESP_LOGI(TAG, "calibration scheme version is %s", "Line Fitting");
adc_cali_line_fitting_config_t cali_config = {
.unit_id = unit,
.atten = atten,
.bitwidth = ADC_BUTTON_WIDTH,
};
ret = adc_cali_create_scheme_line_fitting(&cali_config, &handle);
if (ret == ESP_OK) {
calibrated = true;
}
}
#endif
*out_handle = handle;
if (ret == ESP_OK) {
ESP_LOGI(TAG, "Calibration Success");
} else if (ret == ESP_ERR_NOT_SUPPORTED || !calibrated) {
ESP_LOGW(TAG, "eFuse not burnt, skip software calibration");
} else if (ret == ESP_ERR_NOT_SUPPORTED) {
ESP_LOGW(TAG, "Calibration not supported");
} else {
ESP_LOGE(TAG, "Invalid arg or no memory");
}
return calibrated;
}
static bool adc_calibration_deinit(adc_cali_handle_t handle)
{
#if ADC_CALI_SCHEME_CURVE_FITTING_SUPPORTED
if (adc_cali_delete_scheme_curve_fitting(handle) == ESP_OK) {
return true;
}
#endif
#if ADC_CALI_SCHEME_LINE_FITTING_SUPPORTED
if (adc_cali_delete_scheme_line_fitting(handle) == ESP_OK) {
return true;
}
#endif
return false;
}
esp_err_t button_adc_del(button_driver_t *button_driver)
{
button_adc_obj *adc_btn = __containerof(button_driver, button_adc_obj, base);
ESP_RETURN_ON_FALSE(adc_btn->ch < ADC_BUTTON_CHANNEL_MAX, ESP_ERR_INVALID_ARG, TAG, "channel out of range");
ESP_RETURN_ON_FALSE(adc_btn->index < ADC_BUTTON_MAX_BUTTON, ESP_ERR_INVALID_ARG, TAG, "button_index out of range");
int ch_index = find_channel(adc_btn->unit_id, adc_btn->ch);
ESP_RETURN_ON_FALSE(ch_index >= 0, ESP_ERR_INVALID_ARG, TAG, "can't find the channel");
g_button.unit[adc_btn->unit_id].ch[ch_index].btns[adc_btn->index].max = 0;
g_button.unit[adc_btn->unit_id].ch[ch_index].btns[adc_btn->index].min = 0;
/** check button usage on the channel*/
uint8_t unused_button = 0;
for (size_t i = 0; i < ADC_BUTTON_MAX_BUTTON; i++) {
if (0 == g_button.unit[adc_btn->unit_id].ch[ch_index].btns[i].max) {
unused_button++;
}
}
if (unused_button == ADC_BUTTON_MAX_BUTTON && g_button.unit[adc_btn->unit_id].ch[ch_index].is_init) { /**< if all button is unused, deinit the channel */
g_button.unit[adc_btn->unit_id].ch[ch_index].is_init = 0;
g_button.unit[adc_btn->unit_id].ch[ch_index].channel = ADC_BUTTON_CHANNEL_MAX;
ESP_LOGD(TAG, "all button is unused on channel%d, deinit the channel", g_button.unit[adc_btn->unit_id].ch[ch_index].channel);
}
/** check channel usage on the adc*/
uint8_t unused_ch = 0;
for (size_t i = 0; i < ADC_BUTTON_MAX_CHANNEL; i++) {
if (0 == g_button.unit[adc_btn->unit_id].ch[i].is_init) {
unused_ch++;
}
}
if (unused_ch == ADC_BUTTON_MAX_CHANNEL && g_button.unit[adc_btn->unit_id].is_configured) { /**< if all channel is unused, deinit the adc */
if (g_button.unit[adc_btn->unit_id].is_configured == ADC_INIT_BY_ADC_BUTTON) {
esp_err_t ret = adc_oneshot_del_unit(g_button.unit[adc_btn->unit_id].adc_handle);
ESP_RETURN_ON_FALSE(ret == ESP_OK, ret, TAG, "adc oneshot del unit fail");
adc_calibration_deinit(g_button.unit[adc_btn->unit_id].adc_cali_handle);
}
g_button.unit[adc_btn->unit_id].is_configured = ADC_NONE_INIT;
memset(&g_button.unit[adc_btn->unit_id], 0, sizeof(btn_adc_unit_t));
ESP_LOGD(TAG, "all channel is unused, , deinit adc");
}
free(adc_btn);
return ESP_OK;
}
static uint32_t get_adc_volatge(adc_unit_t unit_id, uint8_t channel)
{
uint32_t adc_reading = 0;
int adc_raw = 0;
for (int i = 0; i < NO_OF_SAMPLES; i++) {
adc_oneshot_read(g_button.unit[unit_id].adc_handle, channel, &adc_raw);
adc_reading += adc_raw;
}
adc_reading /= NO_OF_SAMPLES;
//Convert adc_reading to voltage in mV
int voltage = 0;
adc_cali_raw_to_voltage(g_button.unit[unit_id].adc_cali_handle, adc_reading, &voltage);
ESP_LOGV(TAG, "Raw: %"PRIu32"\tVoltage: %dmV", adc_reading, voltage);
return voltage;
}
uint8_t button_adc_get_key_level(button_driver_t *button_driver)
{
button_adc_obj *adc_btn = __containerof(button_driver, button_adc_obj, base);
static uint16_t vol = 0;
uint32_t ch = adc_btn->ch;
uint32_t index = adc_btn->index;
ESP_RETURN_ON_FALSE(ch < ADC_BUTTON_CHANNEL_MAX, 0, TAG, "channel out of range");
ESP_RETURN_ON_FALSE(index < ADC_BUTTON_MAX_BUTTON, 0, TAG, "button_index out of range");
int ch_index = find_channel(adc_btn->unit_id, ch);
ESP_RETURN_ON_FALSE(ch_index >= 0, 0, TAG, "The button_index is not init");
/** It starts only when the elapsed time is more than 1ms */
if ((esp_timer_get_time() - g_button.unit[adc_btn->unit_id].ch[ch_index].last_time) > 1000) {
vol = get_adc_volatge(adc_btn->unit_id, ch);
g_button.unit[adc_btn->unit_id].ch[ch_index].last_time = esp_timer_get_time();
}
if (vol <= g_button.unit[adc_btn->unit_id].ch[ch_index].btns[index].max &&
vol >= g_button.unit[adc_btn->unit_id].ch[ch_index].btns[index].min) {
return BUTTON_ACTIVE;
}
return BUTTON_INACTIVE;
}
esp_err_t iot_button_new_adc_device(const button_config_t *button_config, const button_adc_config_t *adc_config, button_handle_t *ret_button)
{
esp_err_t ret = ESP_OK;
ESP_RETURN_ON_FALSE(button_config && adc_config && ret_button, ESP_ERR_INVALID_ARG, TAG, "Invalid argument");
ESP_RETURN_ON_FALSE(adc_config->unit_id < ADC_UNIT_NUM, ESP_ERR_INVALID_ARG, TAG, "adc_handle out of range");
ESP_RETURN_ON_FALSE(adc_config->adc_channel < ADC_BUTTON_CHANNEL_MAX, ESP_ERR_INVALID_ARG, TAG, "channel out of range");
ESP_RETURN_ON_FALSE(adc_config->button_index < ADC_BUTTON_MAX_BUTTON, ESP_ERR_INVALID_ARG, TAG, "button_index out of range");
ESP_RETURN_ON_FALSE(adc_config->max > 0, ESP_ERR_INVALID_ARG, TAG, "key max voltage invalid");
button_adc_obj *adc_btn = calloc(1, sizeof(button_adc_obj));
ESP_RETURN_ON_FALSE(adc_btn, ESP_ERR_NO_MEM, TAG, "calloc fail");
adc_btn->unit_id = adc_config->unit_id;
int ch_index = find_channel(adc_btn->unit_id, adc_config->adc_channel);
if (ch_index >= 0) { /**< the channel has been initialized */
ESP_GOTO_ON_FALSE(g_button.unit[adc_btn->unit_id].ch[ch_index].btns[adc_config->button_index].max == 0, ESP_ERR_INVALID_STATE, err, TAG, "The button_index has been used");
} else { /**< this is a new channel */
int unused_ch_index = find_unused_channel(adc_config->unit_id);
ESP_GOTO_ON_FALSE(unused_ch_index >= 0, ESP_ERR_INVALID_STATE, err, TAG, "exceed max channel number, can't create a new channel");
ch_index = unused_ch_index;
}
/** initialize adc */
if (0 == g_button.unit[adc_btn->unit_id].is_configured) {
esp_err_t ret;
if (NULL == adc_config->adc_handle) {
//ADC1 Init
adc_oneshot_unit_init_cfg_t init_config = {
.unit_id = adc_btn->unit_id,
};
ret = adc_oneshot_new_unit(&init_config, &g_button.unit[adc_btn->unit_id].adc_handle);
ESP_GOTO_ON_FALSE(ret == ESP_OK, ESP_FAIL, err, TAG, "adc oneshot new unit fail!");
g_button.unit[adc_btn->unit_id].is_configured = ADC_INIT_BY_ADC_BUTTON;
} else {
g_button.unit[adc_btn->unit_id].adc_handle = *adc_config->adc_handle;
ESP_LOGI(TAG, "ADC1 has been initialized");
g_button.unit[adc_btn->unit_id].is_configured = ADC_INIT_BY_USER;
}
}
/** initialize adc channel */
if (0 == g_button.unit[adc_btn->unit_id].ch[ch_index].is_init) {
//ADC1 Config
adc_oneshot_chan_cfg_t oneshot_config = {
.bitwidth = ADC_BUTTON_WIDTH,
.atten = ADC_BUTTON_ATTEN,
};
esp_err_t ret = adc_oneshot_config_channel(g_button.unit[adc_btn->unit_id].adc_handle, adc_config->adc_channel, &oneshot_config);
ESP_GOTO_ON_FALSE(ret == ESP_OK, ESP_FAIL, err, TAG, "adc oneshot config channel fail!");
//-------------ADC1 Calibration Init---------------//
adc_calibration_init(adc_btn->unit_id, ADC_BUTTON_ATTEN, &g_button.unit[adc_btn->unit_id].adc_cali_handle);
g_button.unit[adc_btn->unit_id].ch[ch_index].channel = adc_config->adc_channel;
g_button.unit[adc_btn->unit_id].ch[ch_index].is_init = 1;
g_button.unit[adc_btn->unit_id].ch[ch_index].last_time = 0;
}
g_button.unit[adc_btn->unit_id].ch[ch_index].btns[adc_config->button_index].max = adc_config->max;
g_button.unit[adc_btn->unit_id].ch[ch_index].btns[adc_config->button_index].min = adc_config->min;
g_button.unit[adc_btn->unit_id].ch_num++;
adc_btn->ch = adc_config->adc_channel;
adc_btn->index = adc_config->button_index;
adc_btn->base.get_key_level = button_adc_get_key_level;
adc_btn->base.del = button_adc_del;
ret = iot_button_create(button_config, &adc_btn->base, ret_button);
ESP_GOTO_ON_FALSE(ret == ESP_OK, ESP_FAIL, err, TAG, "Create button failed");
return ESP_OK;
err:
if (adc_btn) {
free(adc_btn);
}
return ret;
}