250 lines
9.9 KiB
C++
250 lines
9.9 KiB
C++
#include "jiecang_desk_controller.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace jiecang_desk_controller {
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static const char *const TAG = "jiecang_desk_controller";
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float JiecangDeskController::byte2float(int high, int low) {
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return static_cast<float>((high<<8) + low)/10;
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}
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bool JiecangDeskController::bufferMessage(int data, unsigned int *buffer, int len) {
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// This is a very simple method of receiving messages from the desk.
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// It will fail on messages that contain the value 0x7E in their payload.
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// But it is super simple and works for the messages we care about.
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// format: 0xF2 0xF2 [command] [param_count] [[param] ...] [checksum] 0x7E
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// checksum: sum of [command], [param_count] and all [param]s
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static int cmd_incoming = 0; // 0: wait for F2, 1: wait for 2nd F2, 2: buffer data
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static int pos = 0;
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if (cmd_incoming < 2 && data == 0xF2) { // start of message, must appear twice
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cmd_incoming++;
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pos = 0;
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} else if (cmd_incoming == 1) { // no second F2 received
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cmd_incoming = 0;
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} else if (cmd_incoming == 2) {
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if (data == 0x7E) { // end of message
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cmd_incoming = 0;
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for (;pos<len-1;pos++) { // fill rest of buffer with zeros
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buffer[pos]=0;
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}
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return true;
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} else if (pos >= len) { // message too long, drop it
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cmd_incoming = 0;
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} else {
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buffer[pos++] = data; // buffer data
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}
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} // else: received garbage
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return false;
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}
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void JiecangDeskController::handleMessage(unsigned int *message) {
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// ESP_LOGV("jiecang_desk_controller", "message %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X", message[0], message[1], message[2], message[3], message[4], message[5], message[6], message[7], message[8], message[9]);
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switch (message[0]) {
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case 0x01:
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ESP_LOGV("jiecang_desk_controller", "height 0x%0X%0X", message[2], message[3]);
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float new_height;
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new_height = byte2float(message[2], message[3]);
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if (new_height == current_height) return;
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current_height = new_height;
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if (height != nullptr) height->publish_state(current_height);
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if (number_height != nullptr) number_height->publish_state(current_height);
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if (height_pct != nullptr && limit_max != 0)
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height_pct->publish_state((current_height - limit_min) / (limit_max - limit_min) * 100);
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break;
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case 0x20:
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ESP_LOGV("jiecang_desk_controller", "limits 0x%0X max %i min %i", message[2], (message[2] & 1), (message[2]>>4));
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if ((message[2] & 1) == 0) { // low nibble 0 -> no max limit, use physical_max
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limit_max = physical_max;
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if (height_max != nullptr) height_max->publish_state(limit_max);
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if (number_height != nullptr) number_height->set_max_value(limit_max);
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}
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if ((message[2]>>4) == 0) { // high nibble 0 -> no min limit, use physical_min
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limit_min = physical_min;
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if (height_min != nullptr) height_min->publish_state(limit_min);
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if (number_height != nullptr) number_height->set_min_value(limit_min);
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}
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break;
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case 0x07:
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ESP_LOGV("jiecang_desk_controller", "physical limits 0x%02X%02X 0x%02X%02X", message[2], message[3], message[4], message[5]);
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physical_max = byte2float(message[2], message[3]);
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physical_min = byte2float(message[4], message[5]);
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break;
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case 0x21:
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ESP_LOGV("jiecang_desk_controller", "height_max 0x%02X%02X", message[2], message[3]);
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limit_max = byte2float(message[2], message[3]);
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if (height_max != nullptr) height_max->publish_state(limit_max);
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if (number_height != nullptr) number_height->set_max_value(limit_max);
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break;
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case 0x22:
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ESP_LOGV("jiecang_desk_controller", "height_min 0x%02X%02X", message[2], message[3]);
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limit_min = byte2float(message[2], message[3]);
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if (height_min != nullptr) height_min->publish_state(limit_min);
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if (number_height != nullptr) number_height->set_min_value(limit_min);
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break;
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case 0x25:
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ESP_LOGV("jiecang_desk_controller", "position1 0x%02X%02X", message[2], message[3]);
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if (position1 != nullptr) position1->publish_state(byte2float(message[2], message[3]));
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break;
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case 0x26:
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ESP_LOGV("jiecang_desk_controller", "position2 0x%02X%02X", message[2], message[3]);
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if (position2 != nullptr) position2->publish_state(byte2float(message[2], message[3]));
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break;
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case 0x27:
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ESP_LOGV("jiecang_desk_controller", "position3 0x%02X%02X", message[2], message[3]);
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if (position3 != nullptr) position3->publish_state(byte2float(message[2], message[3]));
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break;
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case 0x28:
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ESP_LOGV("jiecang_desk_controller", "position4 0x%02X%02X", message[2], message[3]);
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if (position4 != nullptr) position4->publish_state(byte2float(message[2], message[3]));
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break;
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default:
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ESP_LOGV("jiecang_desk_controller", "unknown message %02X %02X %02X %02X %02X %02X %02X %02X %02X %02X", message[0], message[1], message[2], message[3], message[4], message[5], message[6], message[7], message[8], message[9]);
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}
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}
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void JiecangDeskController::update() {
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const int max_length = 10;
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static unsigned int buffer[max_length];
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while (available()) {
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if(bufferMessage(read(), buffer, max_length)) {
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handleMessage(buffer);
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}
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}
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}
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void JiecangDeskController::send_simple_command(unsigned char cmd) {
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write_array({ 0xF1, 0xF1, cmd, 0x00, cmd, 0x7E });
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}
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void JiecangDeskController::add_button(button::Button *btn, int action) {
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btn->add_on_press_callback([this, action]() { this->button_press_action(action); });
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}
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void JiecangDeskController::raise() {
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send_simple_command(0x01);
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}
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void JiecangDeskController::lower() {
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send_simple_command(0x02);
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}
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void JiecangDeskController::stop() {
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send_simple_command(0x2B);
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}
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void JiecangDeskController::goto_position(int pos) {
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switch (pos) {
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case 1:
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send_simple_command(0x05);
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break;
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case 2:
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send_simple_command(0x06);
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break;
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case 3:
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send_simple_command(0x27);
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break;
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case 4:
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send_simple_command(0x28);
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break;
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}
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}
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void JiecangDeskController::goto_height(float height) {
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unsigned char cmd = 0x01B;
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unsigned char high_byte = ((int) height * 10) >> 8;
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unsigned char low_byte = ((int) height * 10) & 0xFF;
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unsigned char checksum = cmd + 2 + high_byte + low_byte;
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write_array({ 0xF1, 0xF1, cmd, 0x02, high_byte, low_byte, checksum, 0x7E });
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}
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void JiecangDeskController::request_physical_limits() {
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send_simple_command(0x0C);
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}
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void JiecangDeskController::request_limits() {
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send_simple_command(0x20);
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}
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void JiecangDeskController::request_settings() {
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send_simple_command(0x07);
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}
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void JiecangDeskController::button_press_action(int action) {
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ESP_LOGV("JiecangDeskController", "button_press_action %i", action);
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switch (action) {
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case BUTTON_RAISE:
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raise();
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break;
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case BUTTON_LOWER:
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lower();
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break;
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case BUTTON_STOP:
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stop();
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break;
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case BUTTON_POSITION1:
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goto_position(1);
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break;
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case BUTTON_POSITION2:
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goto_position(2);
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break;
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case BUTTON_POSITION3:
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goto_position(3);
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break;
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case BUTTON_POSITION4:
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goto_position(4);
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break;
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}
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}
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void JiecangDeskController::add_number(JiecangDeskNumber *number, int type) {
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switch (type) {
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case NUMBER_HEIGHT:
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number_height = number;
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break;
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default:
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return;
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}
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number->set_type(type);
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number->set_parent(this);
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}
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void JiecangDeskController::number_control(int type, float value) {
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ESP_LOGV("JiecangDeskController", "number_control %i", type);
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switch (type) {
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case NUMBER_HEIGHT:
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goto_height(value);
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break;
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}
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}
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void JiecangDeskButton::press_action() {}
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} //namespace jiecang_desk_controller
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} //namespace esphome
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