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key.c
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key.c
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#include <rtthread.h>
#include <stm32f10x.h>
#include <rtgui/event.h>
#include <rtgui/rtgui_server.h>
/*
key_enter PF11
key_down PG15
key_up PG11
key_right PG14
key_left PG13
*/
#define key_enter_GETVALUE() GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_1)
#define key_down_GETVALUE() GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_9)
#define key_up_GETVALUE() GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_5)
#define key_right_GETVALUE() GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_0)
#define key_left_GETVALUE() GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_8)
static void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* init gpio configuration */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_5 | GPIO_Pin_8|GPIO_Pin_9;
GPIO_Init(GPIOB,&GPIO_InitStructure);
}
static void key_thread_entry(void *parameter)
{
rt_time_t next_delay;
struct rtgui_event_kbd kbd_event;
rt_uint8_t i;
GPIO_Configuration();
/* init keyboard event */
RTGUI_EVENT_KBD_INIT(&kbd_event);
kbd_event.mod = RTGUI_KMOD_NONE;
kbd_event.unicode = 0;
while (1)
{
next_delay = RT_TICK_PER_SECOND/10;
kbd_event.key = RTGUIK_UNKNOWN;
kbd_event.type = RTGUI_KEYDOWN;
if ( key_enter_GETVALUE() == 0 )
{
for(i=0; ; i++)
{
rt_thread_delay( next_delay );
if (key_enter_GETVALUE() == 0)
{
if(i>=4)
{
/* HOME key */
//rt_kprintf("key_home\n");
kbd_event.key = RTGUIK_HOME;
next_delay = RT_TICK_PER_SECOND/5;
break;
}
}
else
{
//rt_kprintf("key_enter\n");
kbd_event.key = RTGUIK_RETURN;
break;
}
}
}
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 = RT_TICK_PER_SECOND/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);
}
}
static rt_thread_t key_tid;
void rt_hw_key_init(void)
{
key_tid = rt_thread_create("key",
key_thread_entry, RT_NULL,
384, 30, 5);
if (key_tid != RT_NULL) rt_thread_startup(key_tid);
}