xushaoxiang
213 lines
5.0 KiB
C
213 lines
5.0 KiB
C
/*!
|
|
* \file key.c
|
|
*
|
|
* \brief Target key implementation
|
|
*
|
|
* \copyright Revised BSD License, see section \ref LICENSE.
|
|
*
|
|
* \code
|
|
*
|
|
* _ __ _ ________ _
|
|
* | |/ /(_)___ / ____/ /_ (_)___
|
|
* | // / __ \/ / / __ \/ / __ \
|
|
* / |/ / / / / /___/ / / / / /_/ /
|
|
* /_/|_/_/_/ /_/\____/_/ /_/_/ .___/
|
|
* /_/
|
|
* (C) 2022-2025 XinChip
|
|
*
|
|
* \endcode
|
|
*
|
|
* \author ( XinChip ) Alex-J
|
|
*
|
|
* \author ( XinChip )
|
|
*/
|
|
|
|
/*-----------------------------------------------------------------------------------
|
|
INCLUDE HEADE FILES
|
|
------------------------------------------------------------------------------------*/
|
|
#include "xc_drv_gpio.h"
|
|
#include "xc6xxx.h"
|
|
#include "key.h"
|
|
#include "message.h"
|
|
|
|
|
|
/*------------------------------------------------------------------------------------
|
|
Macros
|
|
-------------------------------------------------------------------------------------*/
|
|
#define IS_KEY_DOWN(n) (!(xc_gpio_read_pin(n)))
|
|
|
|
#define KEY_GPIO GPIO_13
|
|
|
|
|
|
/*------------------------------------------------------------------------------------
|
|
Global Variables
|
|
-------------------------------------------------------------------------------------*/
|
|
static uint16_t last_key_val = NO_KEY;
|
|
static uint16_t key_down_count = 0;
|
|
static uint16_t key_up_count = 0;
|
|
|
|
/*------------------------------------------------------------------------------------
|
|
Func Prototype
|
|
-------------------------------------------------------------------------------------*/
|
|
|
|
/*------------------------------------------------------------------------------------
|
|
Functions
|
|
-------------------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* @brief app_key_hold_detection
|
|
* @details
|
|
* @param curren_key_val
|
|
* @retval key_num
|
|
*/
|
|
__RAM_CODE uint16_t app_key_hold_detection(uint16_t curren_key_val)
|
|
{
|
|
uint16_t key_num = NO_KEY;
|
|
|
|
if (key_down_count < 0xff)
|
|
key_down_count++;
|
|
|
|
if (key_down_count == KEY_DOWN_TIMER)
|
|
{
|
|
key_num = (curren_key_val | KEY_SHORT_DOWN); // shor key
|
|
}
|
|
else if(key_down_count == KEY_LONG_TIMER)
|
|
{
|
|
key_num = (curren_key_val | KEY_LONG_DOWN); // loog key
|
|
}
|
|
key_up_count = 0;
|
|
|
|
return key_num;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief app_new_key_detection
|
|
* @details key up or new key detection
|
|
* @param curren_key_val
|
|
* @retval key_num
|
|
*/
|
|
__RAM_CODE uint16_t app_new_key_detection(uint16_t curren_key_val)
|
|
{
|
|
uint16_t key_num = NO_KEY;
|
|
|
|
key_up_count++;
|
|
if (key_up_count >= KEY_UP_TIMER)
|
|
{
|
|
if (key_down_count >= KEY_LONG_TIMER)
|
|
{
|
|
key_num = (last_key_val | KEY_LONG_UP); // long key up
|
|
last_key_val = 0;
|
|
}
|
|
else if (key_down_count >= KEY_DOWN_TIMER && key_down_count < KEY_LONG_TIMER)
|
|
{
|
|
key_num = (last_key_val | KEY_SHORT_UP); // shor key up
|
|
last_key_val = 0;
|
|
}
|
|
key_down_count = 0;
|
|
key_up_count = 0;
|
|
}
|
|
if ((curren_key_val && curren_key_val != last_key_val))
|
|
{
|
|
if (key_down_count >= KEY_LONG_TIMER)
|
|
{
|
|
key_num = (last_key_val | KEY_LONG_UP); // long key up
|
|
}
|
|
else if (key_down_count >= KEY_DOWN_TIMER && key_down_count < KEY_LONG_TIMER)
|
|
{
|
|
key_num = (last_key_val | KEY_SHORT_UP); // shor key up
|
|
}
|
|
last_key_val = curren_key_val;
|
|
key_down_count = 0;
|
|
key_up_count = 0;
|
|
}
|
|
|
|
return key_num;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief key_check_process
|
|
* @details
|
|
* @param curren_key_val
|
|
* @retval key_num
|
|
*/
|
|
__RAM_CODE uint16_t key_check_process(uint16_t curren_key_val)
|
|
{
|
|
uint16_t key_num = NO_KEY;
|
|
|
|
if ( curren_key_val == last_key_val && last_key_val != NO_KEY )
|
|
{
|
|
key_num = app_key_hold_detection(curren_key_val);
|
|
}
|
|
else
|
|
{
|
|
key_num = app_new_key_detection(curren_key_val);
|
|
}
|
|
|
|
return key_num;
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief gpio_key_check
|
|
* @details
|
|
* @param void
|
|
* @retval key_num
|
|
*/
|
|
uint16_t gpio_key_check(void)
|
|
{
|
|
uint16_t key_val = NO_KEY;
|
|
|
|
if ( IS_KEY_DOWN(KEY_GPIO) )
|
|
{
|
|
key_val = REC_KEY;
|
|
}
|
|
|
|
return key_val;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* @brief key_check_process
|
|
* @details key scan and send
|
|
* @param void
|
|
* @retval void
|
|
*/
|
|
void app_key_scan(void)
|
|
{
|
|
uint16_t key_num = NO_KEY;
|
|
uint16_t key_val = NO_KEY;
|
|
|
|
key_val = gpio_key_check();
|
|
key_num = key_check_process(key_val);
|
|
|
|
if (key_num != NO_KEY)
|
|
{
|
|
app_key_message_send( key_num );
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief app_key_init
|
|
* @details key init
|
|
* @param void
|
|
* @retval void
|
|
*/
|
|
void app_key_init(void)
|
|
{
|
|
GPIO_InitCfg_t GPIO_InitCfg = {0};
|
|
|
|
GPIO_InitCfg.Mux = GPIO_Mux1;
|
|
GPIO_InitCfg.FunSel = GPIO_Dx;
|
|
GPIO_InitCfg.Pull = GPIO_PULLUP;
|
|
GPIO_InitCfg.Dir = GPIO_DIR_INPUT;
|
|
GPIO_InitCfg.Int = NOT_INT;
|
|
GPIO_InitCfg.Pin = KEY_GPIO;
|
|
|
|
xc_gpio_init(&GPIO_InitCfg);
|
|
}
|
|
|