204 lines
8.0 KiB
C
204 lines
8.0 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include "driver/i2c.h"
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#include "embedded_display.c"
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#include "esp_log.h"
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#include "i2c.c"
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#define APDS_9930_CMD_REPEATED 0x80 // 命令重复地址
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#define APDS_9930_CMD_AUTO_INCREMENT 0x90 // 命令自动递增地址
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// ----------------------------------- 描述 默认值
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#define APDS_9930_REG_ENABLE 0x00 // 状态和中断的启用 0x00
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#define APDS_9930_REG_ATIME 0x01 // ALS ADC 时间 0xff
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#define APDS_9930_REG_PTIME 0x02 // Proximity ADC 时间 0xff
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#define APDS_9930_REG_WTIME 0x03 // Wait 时间 0xff
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#define APDS_9930_REG_PPULSE 0x0e // Proximity 脉冲计数 0x00
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#define APDS_9930_REG_CONTROL 0x0f // 增益控制 0x00
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#define APDS_9930_REG_Ch0DATAL 0x14 // Ch0 ADC Low data 0x00
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#define APDS_9930_REG_Ch0DATAH 0x15 // Ch0 ADC High data 0x00
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#define APDS_9930_REG_Ch1DATAL 0x16 // Ch1 ADC Low data 0x00
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#define APDS_9930_REG_Ch1DATAH 0x17 // Ch1 ADC High data 0x00
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#define APDS_9930_REG_PDATAL 0x18 // Proximity ADC Low data 0x00
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#define APDS_9930_REG_PDATAH 0x19 // Proximity ADC High data 0x00
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#define APDS_9930_REG_OFFSET 0x1e // Proximity 偏移 --
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#define APDS_9930_ATIME_VALUE 0xff // 2.7 ms – minimum ALS integration time
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#define APDS_9930_WTIME_VALUE 0xff // 2.7 ms – minimum Wait time
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#define APDS_9930_PTIME_VALUE 0xff // 2.7 ms – minimum Prox integration time
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#define APDS_9930_PPULSE_VALUE 0x08 // Minimum prox pulse count
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#define APDS_9930_CONTROL_VALUE \
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0b00101010 // LED 100mA, Proximity Diode Ch1,
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// Proximity 4X, ALS 16 X
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#define APDS_9930_ENABLE_VALUE 0b01000111
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#define APDS_9930_OFFSET_VALUE 0x8f
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#define AMBIENT_LIGHT_TAG "ambient-light"
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esp_err_t apds_9930_write(uint8_t command, uint8_t data) {
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i2c_cmd_handle_t cmd = i2c_cmd_link_create();
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, APDS_9930_ADDRESS << 1 | I2C_MASTER_WRITE,
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ACK_CHECK_EN);
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i2c_master_write_byte(cmd, command, ACK_CHECK_EN);
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i2c_master_write_byte(cmd, data, ACK_CHECK_EN);
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i2c_master_stop(cmd);
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esp_err_t error =
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i2c_master_cmd_begin(I2C_MASTER_NUM, cmd, 1000 / portTICK_PERIOD_MS);
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i2c_cmd_link_delete(cmd);
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if (error != ESP_OK) {
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ESP_LOGW(AMBIENT_LIGHT_TAG, "write failed. %d", error);
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}
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return error;
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}
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esp_err_t apds_9930_write_word(uint8_t command, uint8_t data_l,
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uint8_t data_h) {
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i2c_cmd_handle_t cmd = i2c_cmd_link_create();
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, APDS_9930_ADDRESS << 1 | I2C_MASTER_WRITE,
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ACK_CHECK_EN);
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i2c_master_write_byte(cmd, command, ACK_CHECK_EN);
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i2c_master_write_byte(cmd, data_l, ACK_CHECK_EN);
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i2c_master_write_byte(cmd, data_h, ACK_CHECK_EN);
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i2c_master_stop(cmd);
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esp_err_t error =
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i2c_master_cmd_begin(I2C_MASTER_NUM, cmd, 1000 / portTICK_PERIOD_MS);
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i2c_cmd_link_delete(cmd);
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if (error != ESP_OK) {
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ESP_LOGW(AMBIENT_LIGHT_TAG, "write failed. %d", error);
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}
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return error;
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}
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esp_err_t apds_9930_read(uint8_t command, uint8_t* data) {
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i2c_cmd_handle_t cmd = i2c_cmd_link_create();
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, APDS_9930_ADDRESS << 1 | I2C_MASTER_WRITE,
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ACK_CHECK_EN);
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i2c_master_write_byte(cmd, command, ACK_CHECK_EN);
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, APDS_9930_ADDRESS << 1 | I2C_MASTER_READ,
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ACK_CHECK_EN);
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i2c_master_read_byte(cmd, data, NACK_VAL);
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i2c_master_stop(cmd);
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esp_err_t error =
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i2c_master_cmd_begin(I2C_MASTER_NUM, cmd, 1000 / portTICK_PERIOD_MS);
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i2c_cmd_link_delete(cmd);
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if (error != ESP_OK) {
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ESP_LOGW(AMBIENT_LIGHT_TAG, "write failed. %d", error);
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}
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return error;
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}
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esp_err_t apds_9930_read_word(uint8_t command, uint8_t* data_l,
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uint8_t* data_h) {
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i2c_cmd_handle_t cmd = i2c_cmd_link_create();
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, APDS_9930_ADDRESS << 1 | I2C_MASTER_WRITE,
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ACK_CHECK_EN);
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i2c_master_write_byte(cmd, command, ACK_CHECK_EN);
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i2c_master_start(cmd);
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i2c_master_write_byte(cmd, APDS_9930_ADDRESS << 1 | I2C_MASTER_READ,
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ACK_CHECK_EN);
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i2c_master_read_byte(cmd, data_l, ACK_VAL);
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i2c_master_read_byte(cmd, data_h, NACK_VAL);
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i2c_master_stop(cmd);
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esp_err_t error =
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i2c_master_cmd_begin(I2C_MASTER_NUM, cmd, 1000 / portTICK_PERIOD_MS);
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i2c_cmd_link_delete(cmd);
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if (error != ESP_OK) {
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ESP_LOGW(AMBIENT_LIGHT_TAG, "write failed. %d", error);
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}
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return error;
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}
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void ambient_light_fetch(void* arg) {
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ESP_LOGI(AMBIENT_LIGHT_TAG, "ambient_light_fetch");
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esp_err_t error;
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uint16_t als_ch0_raw;
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uint16_t als_ch1_raw;
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uint16_t proximity_raw;
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char als_ch0_str[20];
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char als_ch1_str[20];
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char proximity_str[20];
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uint8_t als_ch0_buffer[] = {0, 0};
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uint8_t als_ch1_buffer[] = {0, 0};
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uint8_t proximity_buffer[] = {0, 0};
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uint8_t enable_value;
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display_fill_rect(0, 2, 128, 8, 0x00);
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for (;;) {
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// Proximity
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error =
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apds_9930_read_word(APDS_9930_CMD_AUTO_INCREMENT | APDS_9930_REG_PDATAL,
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&(proximity_buffer[1]), &(proximity_buffer[0]));
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if (error != ESP_OK) {
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ESP_LOGW(AMBIENT_LIGHT_TAG, "read failed. %x", error);
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} else {
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proximity_raw = proximity_buffer[0] << 8 | proximity_buffer[1];
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sprintf(proximity_str, "Prox: % 4d ", proximity_raw);
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display_print8_str(8, 2, proximity_str);
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ESP_LOGD(AMBIENT_LIGHT_TAG, "Prox: %d %x, %x %x", proximity_raw,
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proximity_raw, proximity_buffer[0], proximity_buffer[1]);
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}
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// als ch0
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error = apds_9930_read_word(
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APDS_9930_CMD_AUTO_INCREMENT | APDS_9930_REG_Ch0DATAL,
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&(als_ch0_buffer[1]), &(als_ch0_buffer[0]));
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if (error != ESP_OK) {
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ESP_LOGW(AMBIENT_LIGHT_TAG, "read failed. %x", error);
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} else {
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als_ch0_raw = als_ch0_buffer[0] << 8 | als_ch0_buffer[1];
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sprintf(als_ch0_str, "Ch0: % 5d ", als_ch0_raw);
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display_print8_str(8, 4, als_ch0_str);
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ESP_LOGD(AMBIENT_LIGHT_TAG, "ALS Ch0: %d, %x", als_ch0_raw,
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als_ch0_raw);
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}
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// als ch1
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// error = apds_9930_read_word(
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// APDS_9930_CMD_AUTO_INCREMENT | APDS_9930_REG_Ch1DATAL,
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// &(als_ch1_buffer[1]), &(als_ch1_buffer[0]));
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// if (error != ESP_OK) {
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// ESP_LOGW(AMBIENT_LIGHT_TAG, "read failed. %x", error);
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// } else {
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// als_ch1_raw = als_ch1_buffer[0] << 8 | als_ch1_buffer[1];
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// sprintf(als_ch1_str, "Ch1: % 5d ", als_ch1_raw);
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// display_print8_str(8, 6, als_ch1_str);
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// ESP_LOGD(AMBIENT_LIGHT_TAG, "ALS Ch1: %d, %x", als_ch1_raw,
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// als_ch1_raw);
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// }
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vTaskDelay(pdMS_TO_TICKS(1000));
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}
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display_fill_rect(0, 2, 128, 8, 0x00);
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}
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void ambient_light_auto_fetch() {
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if (is_apds_9930_online == 0) {
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return;
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}
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xTaskCreate(ambient_light_fetch, "ambient-light", 2048, NULL, 10, NULL);
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}
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void ambient_light_init() {
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if (is_apds_9930_online == 0) {
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ESP_LOGI(AMBIENT_LIGHT_TAG, "APDS 9930 is offline");
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return;
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}
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ESP_LOGI(AMBIENT_LIGHT_TAG, "Initializing APDS-9930");
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// esp_log_level_set(AMBIENT_LIGHT_TAG, ESP_LOG_ERROR);
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ESP_ERROR_CHECK(apds_9930_write(APDS_9930_CMD_REPEATED | APDS_9930_REG_ATIME,
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APDS_9930_ATIME_VALUE));
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ESP_ERROR_CHECK(apds_9930_write(APDS_9930_CMD_REPEATED | APDS_9930_REG_PTIME,
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APDS_9930_PTIME_VALUE));
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ESP_ERROR_CHECK(apds_9930_write(APDS_9930_CMD_REPEATED | APDS_9930_REG_PPULSE,
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APDS_9930_PPULSE_VALUE));
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ESP_ERROR_CHECK(apds_9930_write(
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APDS_9930_CMD_REPEATED | APDS_9930_REG_CONTROL, APDS_9930_CONTROL_VALUE));
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ESP_ERROR_CHECK(apds_9930_write(APDS_9930_CMD_REPEATED | APDS_9930_REG_OFFSET,
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APDS_9930_OFFSET_VALUE));
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ESP_ERROR_CHECK(apds_9930_write(APDS_9930_CMD_REPEATED | APDS_9930_REG_ENABLE,
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APDS_9930_ENABLE_VALUE));
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}
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