添加一些关于midi播放的项目

2025-03-24 14:30:56 +08:00
parent e31eb22077
commit 498b4ef13b
699 changed files with 186162 additions and 1 deletions
@@ -0,0 +1,64 @@
+#include "KeyScan.h"
+#include <stdint.h>
+#include <stddef.h>
+
+uint8_t keyStatusList[KEY_NUM];
+uint8_t keyValueList[KEY_NUM];
+void (*keyCallBackList[KEY_NUM])(uint32_t);
+
+void KeyRawInput(uint32_t keyIndex, uint32_t keyValue)
+{
+    if (keyIndex < KEY_NUM)
+        keyValueList[keyIndex] = keyValue;
+}
+
+void KeyDefaultCallBack(uint32_t param)
+{
+    param = param;
+}
+
+void KeySetCallBack(uint32_t keyIndex, void (*cb)(uint32_t))
+{
+    if (keyIndex < KEY_NUM)
+        keyCallBackList[keyIndex] = cb;
+}
+
+void KeyProcess(uint32_t currentMills)
+{
+    static uint32_t lastMills = 0;
+    if ((currentMills - lastMills) >= SCAN_INTERVAL_MS)
+    {
+        lastMills = currentMills;
+
+        for (size_t keyIndex = 0; keyIndex < KEY_NUM; keyIndex++)
+        {
+            switch (keyStatusList[keyIndex])
+            {
+            case KEY_STATUS_IDLE:
+                if (keyValueList[keyIndex] == KEY_ACTIVE)
+                    keyStatusList[keyIndex] = KEY_STATUS_PRESSED;
+                break;
+            case KEY_STATUS_PRESSED:
+                if (keyValueList[keyIndex] != KEY_ACTIVE)
+                    keyStatusList[keyIndex] = KEY_STATUS_RELEASED;
+                break;
+            case KEY_STATUS_RELEASED:
+                keyCallBackList[keyIndex](keyStatusList[keyIndex]);
+                keyStatusList[keyIndex] = KEY_STATUS_IDLE;
+                break;
+            default:
+                break;
+            }
+        }
+    }
+}
+
+void KeyScanInit(void)
+{
+    for (size_t keyIndex = 0; keyIndex < KEY_NUM; keyIndex++)
+    {
+        keyCallBackList[keyIndex] = KeyDefaultCallBack;
+        keyStatusList[keyIndex] = KEY_STATUS_IDLE;
+        keyValueList[keyIndex] = !KEY_ACTIVE;
+    }
+}