rtt-f030/bsp/stm32_radio/key.c

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C
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#include <rtthread.h>
#include <stm32f10x.h>
#include <rtgui/event.h>
#include <rtgui/rtgui_server.h>
/*
key_enter PA0
key_down PA1
key_up PA2
key_right PC2
key_left PC3
*/
#define key_enter_GETVALUE() GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_0)
#define key_down_GETVALUE() GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_1)
#define key_up_GETVALUE() GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_2)
#define key_right_GETVALUE() GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_2)
#define key_left_GETVALUE() GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_3)
static void key_thread_entry(void *parameter)
{
rt_time_t next_delay;
struct rtgui_event_kbd kbd_event;
GPIO_InitTypeDef GPIO_InitStructure;
/* init gpio configuration */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC,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_2;
GPIO_Init(GPIOA,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3;
GPIO_Init(GPIOC,&GPIO_InitStructure);
/* 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.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;
}
/* post down event */
rtgui_server_post_event(&(kbd_event.parent), sizeof(kbd_event));
/* wait next key press */
rt_thread_delay(next_delay);
/* post up event */
kbd_event.type = RTGUI_KEYUP;
rtgui_server_post_event(&(kbd_event.parent), sizeof(kbd_event));
}
}
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);
}