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add remote for stm32_netradio 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@363 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
wuyangyong 2010-02-01 19:53:57 +00:00
parent ef88a2f5c9
commit 7669398ee7
1 changed files with 474 additions and 0 deletions
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bsp/stm32_radio/remote.c Normal file
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/*
+-----------------------
|
| 红外自学习遥控
|
| Chang Logs:
| Date Author Notes
| 2010-01-02 aozima The bate version.
+----------------------------------------------------
*/
#include <rtthread.h>
#include <dfs_posix.h>
#include <stm32f10x.h>
unsigned int rem_mode = 0;//红外模式 0:没启动,1:自学习,2:正常解码
static unsigned int first_tick = 0;
static unsigned int rx_count = 0;
static unsigned short rm_code[100];
struct rem_codes_typedef
{
unsigned int len;
unsigned short rem_code[100];
};
struct rem_codes_typedef * p_rem_code_src = RT_NULL;
static const char str1[]="KEY_UP"; /* 上 */
static const char str2[]="KEY_DOWN"; /* 下 */
static const char str3[]="KEY_LEFT"; /* 左 */
static const char str4[]="KEY_RIGHT"; /* 右 */
static const char str5[]="KEY_ENTER"; /* 确认 */
static const char str6[]="KEY_RETURN"; /* 返回 */
static const char * desc_key[6]= {str1,str2,str3,str4,str5,str6};
#define wucha 15
/* tim5 configure */
static void TIM5_Configuration(void)
{
/* 时钟及分频设置 */
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
/* Time Base configuration */
/* 72M/720 = 0.01ms */
TIM_TimeBaseStructure.TIM_Prescaler = 720-1;
//计数模式:向上计数
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseStructure.TIM_Period = 0xFFFF;
TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
//重新计数的起始值
TIM_TimeBaseStructure.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM5, &TIM_TimeBaseStructure);
}
/* 捕获设置 */
{
TIM_ICInitTypeDef TIM_ICInitStructure;
TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1;/* 每次检测到捕获输入就触发一次捕获 */
TIM_ICInitStructure.TIM_ICFilter = 8;/* 滤波 */
TIM_ICInitStructure.TIM_Channel = TIM_Channel_3;//选择通道3
TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Falling;//下降沿
TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI;//通道方向选择
TIM_ICInit(TIM5, &TIM_ICInitStructure);
TIM_ICInitStructure.TIM_Channel = TIM_Channel_4;//选择通道3
TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising;//上升沿
TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_IndirectTI;//通道方向选择
TIM_ICInit(TIM5, &TIM_ICInitStructure);
}
/* 输入触发源选择:外部输入触发 */
TIM_SelectInputTrigger(TIM5, TIM_TS_ETRF);//TIM_TS_ETRF 外部触发
/* 从模式-复位模式 */
/* TIM_SlaveMode_Reset 4:选中的触发输入(TRGI)的上升沿重新初始化计数器，并且产生一个更新寄存器的信号 */
TIM_SelectSlaveMode(TIM5, TIM_SlaveMode_Reset);
TIM_SelectMasterSlaveMode(TIM5, TIM_MasterSlaveMode_Enable);
/* TIM enable counter */
TIM_Cmd(TIM5, ENABLE);
/* Enable the CC3 and CC4 Interrupt Request */
TIM_ITConfig(TIM5, TIM_IT_CC3, ENABLE);
TIM_ITConfig(TIM5, TIM_IT_CC4, ENABLE);
}
static void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
/* Enable the TIM5 global Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = TIM5_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
static void RCC_Configuration(void)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);
/* TIM5 clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM5, ENABLE);
/* clock enable */
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA ,ENABLE);
}
static void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* TIM5 channel 3 pin (PA.02) configuration */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
}
void rem_start(void)
{
RCC_Configuration();
GPIO_Configuration();
/* configure TIM5 for remote and encoder */
NVIC_Configuration();
TIM5_Configuration();
p_rem_code_src = rt_malloc( 1500 );
/* 解读红外信息 */
{
int fd,size;
char buf[6];//文件读取临时缓存
unsigned int i;
unsigned short tmp;
unsigned int read_index = 0;
unsigned int EOF_flag = 1;
rt_kprintf("\r\n解读红外信息");
fd = open("/resource/remote.txt",O_RDONLY,0);
if( fd>0 )
{
rt_kprintf("\r/resource/remote.txt打开成功");
while( EOF_flag )
{
//读取长度
size = read(fd,buf,6);
if( (size == 6) && (buf[4]=='\r') && buf[5]=='\n' )
{
//转换得到样本数据长度
tmp = (buf[0]-'0')*1000
+ (buf[1]-'0')*100
+ (buf[2]-'0')*10
+ (buf[3]-'0');
if( tmp<100 )
{
unsigned int code_len = tmp;
p_rem_code_src[read_index].len = code_len;
//如果样本长度符合
for(i=0; i<code_len; i++)
{
size = read(fd,buf,6);
if( (size == 6) && (buf[4]=='\r') && buf[5]=='\n' )
{
tmp = (buf[0]-'0')*1000
+ (buf[1]-'0')*100
+ (buf[2]-'0')*10
+ (buf[3]-'0');
p_rem_code_src[read_index].rem_code[i] = tmp;
}
}
read_index++;
}
}
else
{
EOF_flag = 0;
}
}//while( EOF_flag )
//设置工作模式为正常识别模式
rem_mode = 2;
rt_kprintf("\r红外遥控编码文件解读完成,已打开红外遥控功能\r\n");
}
else
{
rt_kprintf("\r红外遥控编码文件 /resource/remote.txt 打开失败! fd:%d\r\n无法开启红外遥控功能.\r\n请执行rem_study()进行自动学习\r\n",fd);
}
close(fd);
}/* 解读红外信息 */
}
#include <rtgui/event.h>
void rem_encoder(struct rtgui_event_kbd * p)
{
struct rtgui_event_kbd * p_kbd_event = p;
/* 红外遥控匹配 */
if( (rem_mode==2) && (rt_tick_get()>first_tick+10) && (rx_count > 0) )
{
/* 手动清零第一个捕获结果 */
rm_code[0] = 0;
rx_count = 0;
#if 0
{
unsigned int iii;
for(iii=0; iii<100; iii++)
{
rt_kprintf("\r\n%d",rm_code[iii]);
}
}
#endif
#if 1
{
unsigned int tmp;
unsigned int fflag = 0;
unsigned int rem_cmp_n = 6;
//循环匹配所有KEY
while( rem_cmp_n )
{
unsigned int tmp2 = p_rem_code_src[ 6-rem_cmp_n ].len;
//rt_kprintf("\r\nrem_cmp_n:%d tmp2:%d",rem_cmp_n,tmp2);
if( tmp2 )
{
for(tmp=0; tmp<tmp2; tmp++)
{
if( !( (rm_code[tmp] < p_rem_code_src[6-rem_cmp_n].rem_code[tmp]+wucha) && (rm_code[tmp] > p_rem_code_src[6-rem_cmp_n].rem_code[tmp]-wucha)) )
{
fflag = 1;
//rt_kprintf("\r\nerr %d: rm_code[%d] p_rem_code_src[%d].rem_code[%d]",tmp,rm_code[tmp],6-rem_cmp_n,p_rem_code_src[ 6-rem_cmp_n].rem_code[tmp]);
}
}
}
else
{
fflag = 1;
rt_kprintf("\r\n解码失败");
}
if(fflag==0)
{
//成功
rt_kprintf("\r\n识别到遥控按键 %s",desc_key[6-rem_cmp_n]);
switch( rem_cmp_n )
{
case 6:
p_kbd_event->key = RTGUIK_UP;
break;
case 5:
p_kbd_event->key = RTGUIK_DOWN;
break;
case 4:
p_kbd_event->key = RTGUIK_LEFT;
break;
case 3:
p_kbd_event->key = RTGUIK_RIGHT;
break;
case 2:
p_kbd_event->key = RTGUIK_RETURN;
break;
case 1:
p_kbd_event->key = RTGUIK_HOME;
break;
default:
break;
}
rem_cmp_n = 0;
}
else
{
//不成功
fflag = 0;
rem_cmp_n --;
}
}
}
#endif
}//红外遥控匹配
}
/* remote isr */
void remote_isr(void)
{
static unsigned int clr_flag = 1;
unsigned int tick_now = rt_tick_get();
/* 红外遥控下降沿 */
if(TIM_GetITStatus(TIM5, TIM_IT_CC3) == SET)
{
switch( rem_mode )
{
case 0://未启动
break;
case 1://自学习
if( (rx_count==0) || (rx_count>90) || (tick_now>first_tick+10) )
{
//需要清0
rx_count = 0;
clr_flag = 1;
}
if( rx_count<100 )
{
rm_code[rx_count++] = TIM_GetCapture3(TIM5);
}
break;
case 2://正常解码
if( (rx_count>90) || tick_now>first_tick+10 )
{
rx_count = 0;
clr_flag = 1;
}
if(rx_count<100 )
{
rm_code[rx_count++] = TIM_GetCapture3(TIM5);
}
break;
default:
rem_mode = 0;//设置模式为未启动
break;
}
TIM_ClearITPendingBit(TIM5, TIM_IT_CC3);
}
/* 红外遥控上升沿 */
if(TIM_GetITStatus(TIM5, TIM_IT_CC4) == SET)
{
switch( rem_mode )
{
case 0://未启动
break;
case 1://自学习
if( rx_count<100 )
{
rm_code[rx_count++] = TIM_GetCapture4(TIM5);
}
break;
case 2://正常解码
if( rx_count<100 )
{
rm_code[rx_count++] = TIM_GetCapture4(TIM5);
}
break;
default:
rem_mode = 0;//设置模式为未启动
break;
}
TIM_ClearITPendingBit(TIM5, TIM_IT_CC4);
}
//更新时间戳
first_tick = tick_now;
//检测是否需要重置计数器
if( clr_flag )
{
//重置计数器
TIM_SetCounter(TIM5,0);
clr_flag = 0;
}
}
#include <finsh.h>
/* 启动红外学习程序 */
int rem_study(void)
{
unsigned int i;
int fd,size;
unsigned char tmp_buf[606];
rem_mode = 1;
rx_count = 0;
rt_kprintf("\r\n红外遥控自学习功能启动");
fd = open("/resource/remote.txt",O_WRONLY | O_TRUNC,0);
if( !(fd<0) )
{
rt_kprintf("\r\n红外遥控编码文件 /resource/remote.txt 创建成功");
}
else
{
rt_kprintf("\r红外遥控编码文件 /resource/remote.txt 创建失败.\r\n学习程序中止.");
return -1;
}
//学习6个键盘
for( i=0; i<6; i++)
{
unsigned int is_ok = 1;
rt_kprintf("\r\npress key %s",desc_key[i]);
while( is_ok==1 )
{
if( (rem_mode==1) && (rt_tick_get()>first_tick+10) && (rx_count > 0) )
{
unsigned int a,b;
unsigned char * p = tmp_buf;
rt_kprintf("\r\n%s",desc_key[i]);
b = rx_count;
p_rem_code_src[i].len = rx_count;
/* TIM disable counter */
TIM_Cmd(TIM5, DISABLE);
/* disable the CC3 and CC4 Interrupt Request */
TIM_ITConfig(TIM5, TIM_IT_CC3, DISABLE);
TIM_ITConfig(TIM5, TIM_IT_CC4, DISABLE);
p[0] = rx_count / 1000 +'0';
rx_count = rx_count % 1000;
p[1] = rx_count / 100 +'0';
rx_count = rx_count % 100;
p[2] = rx_count / 10 +'0';
rx_count = rx_count % 10;
p[3] = rx_count +'0';
rx_count = 0;
p[4] = '\r';
p[5] = '\n';
p += 6;
rm_code[0] = 0;
for( a=0; a<b; a++)
{
p_rem_code_src[i].rem_code[a] = rm_code[a];
p[0] = rm_code[a] / 1000 +'0';
rm_code[a] = rm_code[a] % 1000;
p[1] = rm_code[a] / 100 +'0';
rm_code[a] = rm_code[a] % 100;
p[2] = rm_code[a] / 10 +'0';
rm_code[a] = rm_code[a] % 10;
p[3] = rm_code[a] +'0';
p[4] = '\r';
p[5] = '\n';
p += 6;
}
size = write(fd,(char*)tmp_buf,(b+1)*6 );
if( size==((b+1)*6) )
{
rt_kprintf("文件写入成功");
is_ok++;
rt_thread_delay( 2 );
/* 重新打开 TIM5 进行捕获 */
TIM_ClearITPendingBit(TIM5, TIM_IT_CC3);
TIM_ClearITPendingBit(TIM5, TIM_IT_CC4);
/* TIM ENABLE counter */
TIM_Cmd(TIM5, ENABLE);
/* ENABLE the CC3 and CC4 Interrupt Request */
TIM_ITConfig(TIM5, TIM_IT_CC3, ENABLE);
TIM_ITConfig(TIM5, TIM_IT_CC4, ENABLE);
}
else
{
rt_kprintf("文件写入失败\r\n红外学习程序退出");
return -1;
}
}
rt_thread_delay(1);
}//while( is_ok==1 )
}//for( i=0; i<6; i++)
close(fd);
rt_kprintf("\r\n学习完成,现在进入正常识别模式\r\n");
rem_mode = 2;
return 0;
}
FINSH_FUNCTION_EXPORT(rem_study, rem_study);