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temperature_sensor: Add temperature sensor support for ESP32-C2

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This commit is contained in:
Cao Sen Miao
2022-06-14 14:50:35 +08:00
parent 7d68098089
commit 3a820462ac
38 changed files with 388 additions and 113 deletions
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19
components/driver/temperature_sensor.c
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@@ -25,6 +25,8 @@
#include "esp_efuse_rtc_calib.h"
#include "esp_private/periph_ctrl.h"
#include "hal/temperature_sensor_ll.h"
#include "hal/regi2c_ctrl_ll.h"
#include "soc/temperature_sensor_periph.h"
static const char *TAG = "temperature_sensor";
@@ -42,33 +44,33 @@ static float s_deltaT = NAN; // unused number
typedef struct temperature_sensor_obj_t temperature_sensor_obj_t;
struct temperature_sensor_obj_t {
const temp_sensor_ll_attribute_t *tsens_attribute;
const temperature_sensor_attribute_t *tsens_attribute;
temp_sensor_fsm_t fsm;
temperature_sensor_clk_src_t clk_src;
};
static temp_sensor_ll_attribute_t *s_tsens_attribute_copy;
static temperature_sensor_attribute_t *s_tsens_attribute_copy;
static int inline accuracy_compare(const void *p1, const void *p2)
{
return ((*(temp_sensor_ll_attribute_t *)p1).error_max < (*(temp_sensor_ll_attribute_t *)p2).error_max) ? -1 : 1;
return ((*(temperature_sensor_attribute_t *)p1).error_max < (*(temperature_sensor_attribute_t *)p2).error_max) ? -1 : 1;
}
static esp_err_t temperature_sensor_attribute_table_sort(void)
{
s_tsens_attribute_copy = (temp_sensor_ll_attribute_t *)heap_caps_malloc(sizeof(temp_sensor_ll_attributes), MALLOC_CAP_DEFAULT);
s_tsens_attribute_copy = (temperature_sensor_attribute_t *)heap_caps_malloc(sizeof(temperature_sensor_attributes), MALLOC_CAP_DEFAULT);
ESP_RETURN_ON_FALSE(s_tsens_attribute_copy != NULL, ESP_ERR_NO_MEM, TAG, "No space for s_tsens_attribute_copy");
for (int i = 0 ; i < TEMPERATURE_SENSOR_LL_RANGE_NUM; i++) {
s_tsens_attribute_copy[i] = temp_sensor_ll_attributes[i];
for (int i = 0 ; i < TEMPERATURE_SENSOR_ATTR_RANGE_NUM; i++) {
s_tsens_attribute_copy[i] = temperature_sensor_attributes[i];
}
// Sort from small to large by error_max.
qsort(s_tsens_attribute_copy, TEMPERATURE_SENSOR_LL_RANGE_NUM, sizeof(s_tsens_attribute_copy[0]), accuracy_compare);
qsort(s_tsens_attribute_copy, TEMPERATURE_SENSOR_ATTR_RANGE_NUM, sizeof(s_tsens_attribute_copy[0]), accuracy_compare);
return ESP_OK;
}
static esp_err_t temperature_sensor_choose_best_range(temperature_sensor_handle_t tsens, const temperature_sensor_config_t *tsens_config)
{
for (int i = 0 ; i < TEMPERATURE_SENSOR_LL_RANGE_NUM; i++) {
for (int i = 0 ; i < TEMPERATURE_SENSOR_ATTR_RANGE_NUM; i++) {
if ((tsens_config->range_min >= s_tsens_attribute_copy[i].range_min) && (tsens_config->range_max <= s_tsens_attribute_copy[i].range_max)) {
tsens->tsens_attribute = &s_tsens_attribute_copy[i];
break;
@@ -102,6 +104,7 @@ esp_err_t temperature_sensor_install(const temperature_sensor_config_t *tsens_co
tsens->tsens_attribute->error_max);
TEMPERATURE_SENSOR_ENTER_CRITICAL();
regi2c_ctrl_ll_i2c_saradc_enable();
temperature_sensor_ll_set_range(tsens->tsens_attribute->reg_val);
temperature_sensor_ll_enable(false); // disable the sensor by default
TEMPERATURE_SENSOR_EXIT_CRITICAL();