git-svn-id: https://rt-thread.googlecode.com/svn/trunk@254 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/mini2440/key.c

@@ -0,0 +1,131 @@
+/*
+ * File      : key.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006, RT-Thread Development Team
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rt-thread.org/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author		Notes
+ * 2007-11-20     Yi.Qiu		add rtgui application
+ * 2008-6-28      Bernard		no rtgui init
+ */
+
+/**
+ * @addtogroup mini2440
+ */
+/*@{*/
+
+#include <rtthread.h>
+#include <s3c24x0.h>
+
+#include <rtgui/event.h>
+#include <rtgui/rtgui_server.h>
+
+/*
+key_enter   GPG0
+key_down    GPG3
+key_up      GPG5
+key_right   GPG6
+key_left    GPG7
+key_power   GPG11
+*/
+#define key_enter_GETVALUE()  (GPGDAT & (1 << 0))
+#define key_down_GETVALUE()   (GPGDAT & (1 << 3))
+#define key_up_GETVALUE()     (GPGDAT & (1 << 5))
+#define key_right_GETVALUE()  (GPGDAT & (1 << 6))
+#define key_left_GETVALUE()   (GPGDAT & (1 << 7))
+#define key_power_GETVALUE()  (GPGDAT & (1 << 11))
+
+
+static void key_thread_entry(void *parameter)
+{
+    rt_time_t next_delay;
+    struct rtgui_event_kbd kbd_event;
+
+    /* init gpio configuration */
+	GPGCON = GPGCON & (~((3<<22)|(3<<6)|(3<<0)|(3<<10)|(3<<12)|(3<<14))) |
+						((2<<22)|(2<<6)|(2<<0)|(2<<10)|(2<<12)|(2<<14));
+
+    /* init keyboard event */
+    RTGUI_EVENT_KBD_INIT(&kbd_event);
+    kbd_event.mod  = RTGUI_KMOD_NONE;
+    kbd_event.unicode = 0;
+
+    while (1)
+    {
+        next_delay = 20;
+		kbd_event.key = RTGUIK_UNKNOWN;
+
+        kbd_event.type = RTGUI_KEYDOWN;
+        if ( key_enter_GETVALUE() == 0 )
+        {
+            rt_thread_delay(next_delay);
+            if (key_enter_GETVALUE() == 0)
+            {
+            	/* HOME key */
+                rt_kprintf("key_home\n");
+                kbd_event.key  = RTGUIK_HOME;
+            }
+            else
+            {
+                rt_kprintf("key_enter\n");
+                kbd_event.key  = RTGUIK_RETURN;
+            }
+        }
+
+        if ( key_down_GETVALUE()  == 0 )
+        {
+            rt_kprintf("key_down\n");
+            kbd_event.key  = RTGUIK_DOWN;
+        }
+
+        if ( key_up_GETVALUE()    == 0 )
+        {
+            rt_kprintf("key_up\n");
+            kbd_event.key  = RTGUIK_UP;
+        }
+
+        if ( key_right_GETVALUE() == 0 )
+        {
+            rt_kprintf("key_right\n");
+            kbd_event.key  = RTGUIK_RIGHT;
+        }
+
+        if ( key_left_GETVALUE()  == 0 )
+        {
+            rt_kprintf("key_left\n");
+            kbd_event.key  = RTGUIK_LEFT;
+        }
+
+		if (kbd_event.key != RTGUIK_UNKNOWN)
+		{
+	        /* post down event */
+	        rtgui_server_post_event(&(kbd_event.parent), sizeof(kbd_event));
+
+			next_delay = 10;
+	        /* delay to post up event */
+	        rt_thread_delay(next_delay);
+
+	        /* post up event */
+	        kbd_event.type = RTGUI_KEYUP;
+	        rtgui_server_post_event(&(kbd_event.parent), sizeof(kbd_event));
+		}
+
+        /* wait next key press */
+        rt_thread_delay(next_delay);
+    }
+}
+
+void rt_hw_key_init()
+{
+    rt_thread_t key_tid;
+    key_tid = rt_thread_create("key",
+                               key_thread_entry, RT_NULL,
+                               512, 30, 5);
+    if (key_tid != RT_NULL) rt_thread_startup(key_tid);
+}
+
+/*@}*/