From 7669398ee7522b1fb4ccf3bb13668533ebe90499 Mon Sep 17 00:00:00 2001 From: wuyangyong Date: Mon, 1 Feb 2010 19:53:57 +0000 Subject: [PATCH] add remote for stm32_netradio git-svn-id: https://rt-thread.googlecode.com/svn/trunk@363 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- bsp/stm32_radio/remote.c | 474 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 474 insertions(+) create mode 100644 bsp/stm32_radio/remote.c diff --git a/bsp/stm32_radio/remote.c b/bsp/stm32_radio/remote.c new file mode 100644 index 0000000000..0afb94e215 --- /dev/null +++ b/bsp/stm32_radio/remote.c @@ -0,0 +1,474 @@ +/* ++----------------------- +| +| 红外自学习遥控 +| +| Chang Logs: +| Date Author Notes +| 2010-01-02 aozima The bate version. ++---------------------------------------------------- +*/ + +#include +#include +#include + +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 +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 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 +/* 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