add keypad module, fix keys gpio define

Core/App/Input/keypad.c

@@ -0,0 +1,71 @@
+#include <stdint.h>
+#include "keypad.h"
+#include "gpio.h"
+#include "RotaryCoder.h"
+
+static uint8_t key_status = 0;
+static uint16_t encoder_value = 0;
+static GPIO_TypeDef *ports[] = {
+    KEY_1_GPIO_Port,
+    KEY_2_GPIO_Port,
+    KEY_3_GPIO_Port,
+    KEY_4_GPIO_Port,
+    KEY_5_GPIO_Port,
+    KEY_6_GPIO_Port,
+    ENCODER_KEY_GPIO_Port
+};
+static uint16_t pins[] = {
+    KEY_1_Pin,
+    KEY_2_Pin,
+    KEY_3_Pin,
+    KEY_4_Pin,
+    KEY_5_Pin,
+    KEY_6_Pin,
+    ENCODER_KEY_Pin
+};
+static uint8_t keys[] = {
+    kp_KEY1,
+    kp_KEY2,
+    kp_KEY3,
+    kp_KEY4,
+    kp_KEY5,
+    kp_KEY6,
+    kp_KEYENCODER
+};
+
+#define K_GET(x) (((0b1 << x) & key_status) >> x)
+#define K_SET0(x) (key_status = (~(0b1 << x)) & key_status)
+#define K_SET1(x) (key_status = (0b1 << x) | key_status)
+#define K_HGET(x) (HAL_GPIO_ReadPin(ports[x], pins[x]) == GPIO_PIN_RESET)
+#define K_EVENT(event, value) ((value << 4) | event)
+
+uint8_t kp_query() {
+    // Scan keypad
+    uint16_t rota_value = EC11_COUNT();
+    uint16_t differ = rota_value - encoder_value;
+    uint8_t direction = kp_ROTATE_LEFT;
+    if (differ > 0) {
+        if (differ > 32768) {
+            differ = 0xFFFF - differ + 1;
+            direction = kp_ROTATE_RIGHT;
+        }
+        differ = differ / 2; // filter 2x
+    }
+    if (differ > 0) {
+        encoder_value = rota_value;
+        return K_EVENT(direction, differ);
+    }
+    uint8_t state, mstate, key_n;
+    for (key_n = 0; key_n < sizeof(keys); key_n ++) {
+        state = K_HGET(key_n);
+        mstate = K_GET(key_n);
+        if (state && (!mstate)) {
+            K_SET1(key_n);
+            return K_EVENT(kp_KEY_DOWN, keys[key_n]);
+        } else if ((!state) && mstate) {
+            K_SET0(key_n);
+            return K_EVENT(kp_KEY_UP, keys[key_n]);
+        }
+    }
+    return K_EVENT(kp_NOP, 0);
+}

Core/App/Input/keypad.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#define kp_NOP           0x0
+#define kp_KEY_DOWN      0x1
+#define kp_KEY_UP        0x2
+#define kp_ROTATE_LEFT   0x3
+#define kp_ROTATE_RIGHT  0x4
+
+#define kp_KEY1          0x0
+#define kp_KEY2          0x1
+#define kp_KEY3          0x2
+#define kp_KEY4          0x3
+#define kp_KEY5          0x4
+#define kp_KEY6          0x5
+#define kp_KEYENCODER    0x6
+
+#define kp_Type(x) (x & 0b1111)
+#define kp_Value(x) (x >> 4)
+
+// query and return keypad event
+uint8_t kp_query();

Core/App/app.c

@@ -1,11 +1,27 @@
 #include "gpio.h"
 #include "ui.h"
+#include "keypad.h"
 
 void app_init() {
+    // 程序开始时执行一次
     ui_screen_main();
+    kp_query();
+    printf("\n====start====\n");
 }
 
+#include "gpio.h" //test
 void app_main_loop() {
-    HAL_GPIO_TogglePin(LED_STATUS_GPIO_Port,LED_STATUS_Pin);
-    HAL_Delay(300);
+    // 反复被调用执行
+    // HAL_GPIO_TogglePin(LED_STATUS_GPIO_Port,LED_STATUS_Pin);
+    // HAL_Delay(1000);
+    uint8_t event = kp_query();
+    uint8_t event_type = kp_Type(event);
+    uint8_t event_value = kp_Value(event);
+    // printf("Raw Event Value: %d\n", event);
+    if (event_type != kp_NOP) {
+        printf("event: %d, key: %d\n", event_type, event_value);
+    }
+
+    GPIO_PinState state = HAL_GPIO_ReadPin(ENCODER_KEY_GPIO_Port, ENCODER_KEY_Pin);
+    HAL_GPIO_WritePin(LED_STATUS_GPIO_Port, LED_STATUS_Pin, state);
 }