From 3ee219534043d3e985f3a0bd17b2b5da94353805 Mon Sep 17 00:00:00 2001
From: masc2008 <masc2008@gmail.com>
Date: Fri, 3 Oct 2025 11:01:00 +0800
Subject: [PATCH] Change the button array to ADC buttons as in the board for
 esp32s3-korv2 (#1256)

* Change the button array to ADC buttons as in the board for esp32s3-korv2

* Add MuteVol function to control audio volume
---
 .../esp32s3_korvo2_v3_board.cc                | 111 ++++++++++++++++++
 1 file changed, 111 insertions(+)

diff --git a/main/boards/esp32s3-korvo2-v3/esp32s3_korvo2_v3_board.cc b/main/boards/esp32s3-korvo2-v3/esp32s3_korvo2_v3_board.cc
index b24dbb34..d33bedd9 100644
--- a/main/boards/esp32s3-korvo2-v3/esp32s3_korvo2_v3_board.cc
+++ b/main/boards/esp32s3-korvo2-v3/esp32s3_korvo2_v3_board.cc
@@ -5,6 +5,7 @@
 #include "button.h"
 #include "config.h"
 #include "i2c_device.h"
+#include "assets/lang_config.h"
 
 #include <esp_log.h>
 #include <esp_lcd_panel_vendor.h>
@@ -16,6 +17,16 @@
 #include "esp32_camera.h"
 
 #define TAG "esp32s3_korvo2_v3"
+/* ADC Buttons */
+typedef enum {
+    BSP_ADC_BUTTON_REC,
+    BSP_ADC_BUTTON_VOL_MUTE,
+    BSP_ADC_BUTTON_PLAY,
+    BSP_ADC_BUTTON_SET,
+    BSP_ADC_BUTTON_VOL_DOWN,
+    BSP_ADC_BUTTON_VOL_UP,
+    BSP_ADC_BUTTON_NUM
+} bsp_adc_button_t;
 
 // Init ili9341 by custom cmd
 static const ili9341_lcd_init_cmd_t vendor_specific_init[] = {
@@ -41,6 +52,10 @@ static const ili9341_lcd_init_cmd_t vendor_specific_init[] = {
 class Esp32S3Korvo2V3Board : public WifiBoard {
 private:
     Button boot_button_;
+    Button* adc_button_[BSP_ADC_BUTTON_NUM];
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)
+    adc_oneshot_unit_handle_t bsp_adc_handle = NULL;
+#endif
     i2c_master_bus_handle_t i2c_bus_;
     LcdDisplay* display_;
     esp_io_expander_handle_t io_expander_ = NULL;
@@ -127,7 +142,103 @@ private:
         ESP_ERROR_CHECK(spi_bus_initialize(SPI3_HOST, &buscfg, SPI_DMA_CH_AUTO));
     }
 
+    void ChangeVol(int val) {
+        auto codec = GetAudioCodec();
+        auto volume = codec->output_volume() + val;
+        if (volume > 100) {
+            volume = 100;
+        }
+        if (volume < 0) {
+            volume = 0;
+        }
+        codec->SetOutputVolume(volume);
+        GetDisplay()->ShowNotification(Lang::Strings::VOLUME + std::to_string(volume));
+    }
+
+    void MuteVol() {
+        auto codec = GetAudioCodec();
+        auto volume = codec->output_volume();
+        if (volume > 1) {
+            volume = 0;
+        } else  {
+            volume = 50;
+        }
+        codec->SetOutputVolume(volume);
+        GetDisplay()->ShowNotification(Lang::Strings::VOLUME + std::to_string(volume));
+    }
+
     void InitializeButtons() {
+         button_adc_config_t adc_cfg = {};
+        adc_cfg.adc_channel = ADC_CHANNEL_4; // ADC1 channel 0 is GPIO5
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)
+        const adc_oneshot_unit_init_cfg_t init_config1 = {
+            .unit_id = ADC_UNIT_1,
+        };
+        adc_oneshot_new_unit(&init_config1, &bsp_adc_handle);
+        adc_cfg.adc_handle = &bsp_adc_handle;
+#endif
+        adc_cfg.button_index = BSP_ADC_BUTTON_REC;
+        adc_cfg.min = 2310; // middle is 2410mV
+        adc_cfg.max = 2510;
+        adc_button_[0] = new AdcButton(adc_cfg);
+
+        adc_cfg.button_index = BSP_ADC_BUTTON_VOL_MUTE;
+        adc_cfg.min = 1880; // middle is 1980mV
+        adc_cfg.max = 2080;
+        adc_button_[1] = new AdcButton(adc_cfg);
+
+        adc_cfg.button_index = BSP_ADC_BUTTON_PLAY;
+        adc_cfg.min = 1550; // middle is 1650mV
+        adc_cfg.max = 1750;
+        adc_button_[2] = new AdcButton(adc_cfg);
+
+        adc_cfg.button_index = BSP_ADC_BUTTON_SET;
+        adc_cfg.min = 1015; // middle is 1115mV
+        adc_cfg.max = 1215;
+        adc_button_[3] = new AdcButton(adc_cfg);
+
+        adc_cfg.button_index = BSP_ADC_BUTTON_VOL_DOWN;
+        adc_cfg.min = 720; // middle is 820mV
+        adc_cfg.max = 920;
+        adc_button_[4] = new AdcButton(adc_cfg);
+
+        adc_cfg.button_index = BSP_ADC_BUTTON_VOL_UP;
+        adc_cfg.min = 280; // middle is 380mV
+        adc_cfg.max = 480;
+        adc_button_[5] = new AdcButton(adc_cfg);
+
+        auto volume_up_button = adc_button_[BSP_ADC_BUTTON_VOL_UP];
+        volume_up_button->OnClick([this]() {ChangeVol(10);});
+        volume_up_button->OnLongPress([this]() {
+            GetAudioCodec()->SetOutputVolume(100);
+            GetDisplay()->ShowNotification(Lang::Strings::MAX_VOLUME);
+        });
+
+        auto volume_down_button = adc_button_[BSP_ADC_BUTTON_VOL_DOWN];
+        volume_down_button->OnClick([this]() {ChangeVol(-10);});
+        volume_down_button->OnLongPress([this]() {
+            GetAudioCodec()->SetOutputVolume(0);
+            GetDisplay()->ShowNotification(Lang::Strings::MUTED);
+        });
+
+        auto volume_mute_button = adc_button_[BSP_ADC_BUTTON_VOL_MUTE];
+        volume_mute_button->OnClick([this]() {MuteVol();});
+
+        auto play_button = adc_button_[BSP_ADC_BUTTON_PLAY];
+        play_button->OnClick([this]() {
+             ESP_LOGI(TAG, " TODO %s:%d\n", __func__, __LINE__);
+        });
+
+        auto set_button = adc_button_[BSP_ADC_BUTTON_SET];
+        set_button->OnClick([this]() {
+             ESP_LOGI(TAG, "TODO %s:%d\n", __func__, __LINE__);
+        });
+
+        auto rec_button = adc_button_[BSP_ADC_BUTTON_REC];
+        rec_button->OnClick([this]() {
+             ESP_LOGI(TAG, "TODO %s:%d\n", __func__, __LINE__);
+        });
+        boot_button_.OnClick([this]() {});
         boot_button_.OnClick([this]() {
             auto& app = Application::GetInstance();
             if (app.GetDeviceState() == kDeviceStateStarting && !WifiStation::GetInstance().IsConnected()) {