[keyobj] add rc522 key obj

software/applications/SConscript

@@ -7,6 +7,7 @@ src     = Split("""
 main.c
 entry_key.c
 reg_key_fp.c
+reg_key_rc.c
 """)
 
 group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)

software/applications/entry_key.h

@@ -26,7 +26,6 @@ struct entry_key{
 };
 typedef struct entry_key *entry_key_t;
 
-
 /**
  * @brief Regist the key object
  * 

software/applications/reg_key_rc.c

@@ -0,0 +1,102 @@
+#include "entry_key.h"
+#include "mfrc522.h" // rc522 packages
+
+#define EVENT_SCAN_START    (1 << 0)
+#define EVENT_SCAN_END      (1 << 1)
+
+static Uid *uid;
+static rt_event_t rc_evt = RT_NULL;
+static uint32_t tmp_id = 0;
+
+static struct entry_key en_key_rc = {0};
+static uint32_t rc_id[KEY_ID_MAX] = {0};
+
+static void rc_add_key(uint16_t id)
+{
+    uint32_t rec = 0;
+    if (id > KEY_ID_MAX)
+    {
+        rt_kprintf("id out of range!\n");
+        return;
+    }
+    rt_event_send(rc_evt, EVENT_SCAN_START);
+    rt_event_recv(rc_evt, EVENT_SCAN_END, RT_EVENT_FLAG_AND | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER, &rec);
+    rc_id[id] = tmp_id;
+}
+
+static void rc_del_key(uint16_t id)
+{
+    rc_id[id] = 0;
+}
+
+static uint16_t rc_ver_key(void)
+{
+    uint32_t rec = 0;
+    uint16_t i = 0;
+    rt_event_send(rc_evt, EVENT_SCAN_START);
+    rt_event_recv(rc_evt, EVENT_SCAN_END, RT_EVENT_FLAG_AND | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER, &rec);
+    for (i = 0; i < KEY_ID_MAX; i++)
+    {
+        if (rc_id[i] == tmp_id)
+            return i;
+    }
+    return KEY_VER_ERROR;
+}
+
+static uint8_t rc_has_key(uint16_t id)
+{
+    return (rc_id[id] != 0) ? 1 : 0;
+}
+
+static void rc_init_thread(void *param)
+{
+    uint32_t rec = 0;
+    MFRC522(MFRC522_SS_PIN, MFRC522_RST_PIN);
+    PCD_Init();		// Init MFRC522
+    rt_thread_mdelay(4);
+    uid = get_uid();
+
+    while (1)
+	{
+        rt_event_recv(rc_evt, EVENT_SCAN_START, RT_EVENT_FLAG_AND | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER, &rec);
+        while (1)
+        {
+            // Reset the loop if no new card present on the sensor/reader. This saves the entire process when idle. And if present, select one.
+            if ( ! PICC_IsNewCardPresent() || ! PICC_ReadCardSerial())
+            {
+                rt_thread_mdelay(50);
+                continue;
+            }
+
+            // // Dump debug info about the card; PICC_HaltA() is automatically called
+            // PICC_DumpToSerial(uid);
+            tmp_id = uid->uidByte[0] << 24 + uid->uidByte[1] << 16 + uid->uidByte[2] << 8 + uid->uidByte[3]; // change uid format form 8bit to 32bit
+            rt_event_send(rc_evt, EVENT_SCAN_END);
+            break;
+        }
+    }
+
+    // PCD_End();
+}
+
+static int rt_hw_rc_port(void)
+{
+    en_key_rc.add_key = rc_add_key;
+    en_key_rc.del_key = rc_del_key;
+    en_key_rc.ver_key = rc_ver_key;
+    en_key_rc.has_key = rc_has_key;
+    reg_key_obj(ENTRY_KEY_FP, &en_key_rc);
+
+    rc_evt = rt_event_create("rck-evt", RT_IPC_FLAG_FIFO);
+    if (RT_NULL == rc_evt)
+        rt_kprintf("create rc_evt failed!\n");
+
+    rt_thread_t rc_tid = RT_NULL;
+    rc_tid = rt_thread_create("rck-tid", rc_init_thread, RT_NULL, 1024, 15, 10);
+    if (rc_tid != RT_NULL)
+        rt_thread_startup(rc_tid);
+
+    return 0;
+}
+INIT_COMPONENT_EXPORT(rt_hw_rc_port);
+