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remote.c
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/*
+----------------------------------------------------
|
| 红外自学习遥控
|
| Chang Logs:
| Date Author Notes
| 2010-01-02 aozima The bate version.
| 2010-02-10 aozima change printf string 中文 to english.
| 2010-03-25 aozima add remote_fn define.
| 2010-06-16 aozima add remote_study to ui.
+----------------------------------------------------
*/
#include <stdio.h>
#include <string.h>
#include <rtthread.h>
#include <dfs_posix.h>
#include <stm32f10x.h>
#include <rtgui/event.h>
#include <rtgui/rtgui_server.h>
/* 重定义printf */
#define printf rt_kprintf
/* 设置允许偏差,单位0.01ms */
#define remote_deviation 15
#define remote_code_len_max 100
/* 样本保存文件名全路径 */
#define remote_fn "/resource/remote.txt"
/* 红外模式 0:没启动,1:自学习,2:正常解码 */
typedef enum
{
remote_mode_disable,
remote_mode_study,
remote_mode_enable,
}remote_mode_type;
remote_mode_type rem_mode = remote_mode_disable;
static unsigned int first_tick = 0; /* 本次开始捕获的时间戳 */
static unsigned int rx_count = 0; /* 本次捕获中捕获到的信号计数. */
static unsigned short * rm_code = RT_NULL;
/* 信号量对象*/
static struct rt_semaphore sem_IR;
struct rem_codes_typedef
{
unsigned int len;
unsigned short rem_code[remote_code_len_max];
};
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};
/* 将数据转换成 #####\r\n 格式的文本 */
static void dectoascii(unsigned int date_input,char * p)
{
p[0] = date_input / 10000 +'0';
date_input = date_input % 10000;
p[1] = date_input / 1000 +'0';
date_input = date_input % 1000;
p[2] = date_input / 100 +'0';
date_input = date_input % 100;
p[3] = date_input / 10 +'0';
date_input = date_input % 10;
p[4] = date_input +'0';
date_input = 0;
p[5] = '\r';
p[6] = '\n';
p += 7;
}
/* 将#####\r\n 格式文本转换成数据 */
static unsigned short asciitodec(const char * p_str)
{
return ( (p_str[0]-'0')*10000
+ (p_str[1]-'0')*1000
+ (p_str[2]-'0')*100
+ (p_str[3]-'0')*10
+ (p_str[4]-'0') );
}
/* 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_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( sizeof(struct rem_codes_typedef)*6 );
if( p_rem_code_src != RT_NULL)
{
rt_memset(p_rem_code_src,0, sizeof(struct rem_codes_typedef)*6 );
/* 解读红外信息 */
{
int fd,size;
char buf[7];/* 文件读取临时缓存 #####\r\n */
unsigned int i;
unsigned short tmp;
unsigned int read_index = 0;
unsigned int EOF_flag = 1;
printf("\r\ndecode remote codes");
fd = open(remote_fn,O_RDONLY,0);
if( fd >= 0 )
{
printf("\r/resource/remote.txt open succeed.\r\n");
while( EOF_flag )
{
/* 读取长度 */
size = read(fd,buf,7);
if( (size == 7) && (buf[5]=='\r') && buf[6]=='\n' )
{
/* 转换得到样本数据长度 */
tmp = asciitodec(buf);
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 就开始从文件读取编码数据 */
for(i=0; i<code_len; i++)
{
size = read(fd,buf,7);
if( (size == 7) && (buf[5]=='\r') && buf[6]=='\n' )
{
/* 转换得到样本数据 */
tmp = asciitodec(buf);
p_rem_code_src[read_index].rem_code[i] = tmp;
}
}
read_index++;
}
}
else
{
EOF_flag = 0;
}
}//while( EOF_flag )
/* 判断是否正确解读编码数据文件 */
if ( p_rem_code_src[0].len > 0 && p_rem_code_src[0].len < remote_code_len_max )
{
/* 设置工作模式为正常识别模式 */
rem_mode = remote_mode_enable;
printf("\r\ndecode succeed,The remote enable\r\n");
}
else
{
/* 设置工作模式为关闭模式 */
rem_mode = remote_mode_disable;
printf("\r\nrem_codes decode fail,The remote disable\r\n");
}
}
else
{
printf("\rrem_codes /resource/remote.txt open fail! fd:%d\r\nThe remote disbale.\r\nplease run rem_study()\r\n",fd);
}
close(fd);
}/* 解读红外信息 */
}
else
{
rem_mode = remote_mode_disable;
printf("\r\nmalloc rem_codes[] fail!!!\r\nThe remote disable!");
}
}
void rem_encoder(struct rtgui_event_kbd * p_kbd_event)
{
/* 检查是否有数据被捕获 */
if( (rem_mode==2) && (rx_count > 0) )
{
/* 手动清零第一个捕获结果 */
rm_code[0] = 0;
rx_count = 0;
/* 匹配捕获的数据 */
{
unsigned int tmp;
unsigned int err_flag = 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;
//printf("\r\nrem_cmp_n:%d tmp2:%d",rem_cmp_n,tmp2);
if( tmp2 )
{
for(tmp=0; tmp<tmp2; tmp++)
{
/* 判断捕获结果是否在偏差允许范围内 */
if( !( (rm_code[tmp] < p_rem_code_src[6-rem_cmp_n].rem_code[tmp]+remote_deviation)
&& (rm_code[tmp] > p_rem_code_src[6-rem_cmp_n].rem_code[tmp]-remote_deviation)) )
{
err_flag = 1;
}
}
}
else
{
err_flag = 1;
printf("\r\nThe rem codes len is 0.");
}
if( err_flag==0 )
{
/* 对比全部数据符合 */
printf("\r\nmatch key: %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
{
/* 对比不符合,清零错误标致,以进行下一次对比 */
err_flag = 0;
rem_cmp_n --;
}
}
}
}/* 红外遥控匹配 */
}
/* remote isr */
void remote_isr(void)
{
static unsigned int clr_flag = 1; /* 是否需要清零标致,用来判断是否是某次捕获的起点. */
unsigned int tick_now = rt_tick_get();/* 获取当前时间戳.*/
/* 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 */
/* 如果总的接收计数为0,则判定这是一次开始,需要清零. */
if( rx_count==0 )
{
//需要清0
clr_flag = 1;
}
if( rx_count < remote_code_len_max )
{
rm_code[rx_count++] = TIM_GetCapture3(TIM5);
}
break;
case 2://正常解码
if( ( rx_count>(remote_code_len_max-10) ) || tick_now>first_tick+10 )
{
rx_count = 0;
clr_flag = 1;
}
if(rx_count < remote_code_len_max )
{
rm_code[rx_count++] = TIM_GetCapture3(TIM5);
}
break;
default:
rem_mode = remote_mode_disable;/* 异常跳入,则关闭红外摇控 */
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 < remote_code_len_max )
{
rm_code[rx_count++] = TIM_GetCapture4(TIM5);
}
break;
case 2://正常解码
if( rx_count < remote_code_len_max )
{
rm_code[rx_count++] = TIM_GetCapture4(TIM5);
if( p_rem_code_src[0].len == rx_count)
{
rt_sem_release(&sem_IR);
}
}
break;
default:
rem_mode = remote_mode_disable;/* 异常跳入,则关闭红外摇控 */
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 <rtgui/rtgui.h>
#include <rtgui/rtgui_system.h>
#include <rtgui/widgets/workbench.h>
#include <rtgui/widgets/view.h>
#include "player_bg.h"
static rtgui_view_t* setting_view = RT_NULL;
static rtgui_workbench_t* father_workbench = RT_NULL;
/* 启动红外学习程序 */
void remote_study_thread_entry(void * parameter)
{
struct rtgui_event_command ecmd;
unsigned int i;
int fd,size;
char * tmp_buf = RT_NULL;
tmp_buf = rt_malloc( (remote_code_len_max+1)*7 );
if(tmp_buf == RT_NULL) return;
RTGUI_EVENT_COMMAND_INIT(&ecmd);
ecmd.type = RTGUI_EVENT_PAINT;
rem_mode = remote_mode_study;
rx_count = 0;
printf("\r\nremote studing.....");
fd = open(remote_fn,O_WRONLY | O_TRUNC,0);
if( fd >= 0 )
{
printf("\r\n/resource/remote.txt create succeed.");
}
else
{
printf("\r/resource/remote.txt create fail.\r\nabort.");
return;
}
/* 学习6个键盘 */
for( i=0; i<6; i++)
{
unsigned int is_ok = 1;
memset(rm_code,0,sizeof(rm_code));
printf("\r\npress key %s",desc_key[i]);
//向UI发送消息
ecmd.command_id = PLAYER_REQUEST_REMOTE;
strncpy(ecmd.command_string,desc_key[i],RTGUI_NAME_MAX);
rtgui_thread_send(rt_thread_find("ply_ui"), &ecmd.parent, sizeof(ecmd));
while( is_ok==1 )
{
/* 如果在200ms内有捕获到数据. */
if( ( rem_mode== remote_mode_study ) && (rt_tick_get()>first_tick+20) && (rx_count > 0) )
{
unsigned int a,rx_count_current;
char * p = tmp_buf;
printf("\r\n%s",desc_key[i]);
printf(" rx_count : %d",rx_count);
rm_code[0] = 0;
/* 从捕获到的数据中取得第一个有效段的长度. */
{
unsigned int i = 0;
rx_count_current = 0;
while( rx_count_current==0 )
{
/* 如果此点距离下点小于20ms,且下点不为0,则认为有效. */
if( ((rm_code[i]+2000)>rm_code[i+1] ) && (rm_code[i+1] != 0) )
{
i++;
}
else /* 否则就是无效.*/
{
/* 获得本次捕获的有效记录数. */
rx_count_current = i+1;
}
}
printf(" rx_count_current : %d",rx_count_current);
}
p_rem_code_src[i].len = rx_count_current;
/* 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);
/* 把本次捕获的有效记录数转换成十进制ASCII保存. */
dectoascii(rx_count_current,p);
p += 7;
for( a=0; a<rx_count_current; a++)
{
/* 把当前数据直接写进样品数据 */
p_rem_code_src[i].rem_code[a] = rm_code[a];
/* 然后转换成文本格式 #####\r\n */
dectoascii(rm_code[a],p);
p += 7;
}
size = write(fd,(char*)tmp_buf,(rx_count_current+1)*7 );
if( size==((rx_count_current+1)*7) )
{
printf(" file write succeed!");
is_ok++;
rt_thread_delay( 2 );
rx_count = 0;//清零接收计数,以便进行再次捕获
/* 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
{
printf(" file write fail.\r\nabort.");
return;
}
}
rt_thread_delay(1);
}//while( is_ok==1 )
}//for( i=0; i<6; i++)
close(fd);
printf("\r\nremote study complete.The remote enable.\r\n");
strcpy(ecmd.command_string,"done");
rtgui_thread_send(rt_thread_find("ply_ui"), &ecmd.parent, sizeof(ecmd));
rt_thread_delay(RT_TICK_PER_SECOND);
strcpy(ecmd.command_string,"exit");
rtgui_thread_send(rt_thread_find("ply_ui"), &ecmd.parent, sizeof(ecmd));
rem_mode = remote_mode_enable;
rt_free(tmp_buf);
return;
}
static unsigned int yy2 = 0;
static rt_bool_t view_event_handler ( struct rtgui_widget* widget, struct rtgui_event* event )
{
switch ( event->type )
{
case RTGUI_EVENT_PAINT:
{
struct rtgui_dc* dc;
struct rtgui_rect rect;
char* line;
line = rtgui_malloc(256);
//开始绘图
dc = rtgui_dc_begin_drawing ( widget );
if ( dc == RT_NULL )
return RT_FALSE;
//得到位置
rtgui_widget_get_rect ( widget, &rect );
/* fill background */
rtgui_dc_fill_rect(dc, &rect);
rect.y2 = rect.y1 + 18;
yy2 = rect.y2;
sprintf(line, "红外遥控学习程序");
rtgui_dc_draw_text(dc, line, &rect);
rect.y1 = rect.y2;
rect.y2 = rect.y1 + 18;
yy2 = rect.y2;
sprintf(line, "长按ENTER键返回");
rtgui_dc_draw_text(dc, line, &rect);
rtgui_dc_end_drawing ( dc );
rtgui_free(line);
return RT_FALSE;
}
case RTGUI_EVENT_COMMAND:
{
struct rtgui_dc* dc;
struct rtgui_rect rect;
char* line;
struct rtgui_event_command* ecmd = (struct rtgui_event_command*)event;
// rt_kprintf("cmd type:%d cmd id:%d cmd_str: %s",ecmd->type,ecmd->command_id,ecmd->command_string);
if( (strcmp(ecmd->command_string,"done")==0) || (strcmp(ecmd->command_string,"exit")==0))
{
if( strcmp(ecmd->command_string,"done")==0 )
{
line = rtgui_malloc(256);
dc = rtgui_dc_begin_drawing ( widget );
rtgui_widget_get_rect ( widget, &rect );
rect.y1 = yy2;
rect.y2 = rect.y1 + 18;
yy2 = rect.y2;
sprintf(line, "红外学习完成,已打开遥控功能");
rtgui_dc_draw_text(dc, line, &rect);
rtgui_dc_end_drawing ( dc );
rtgui_free(line);
}
else
{
rtgui_workbench_t* workbench;
workbench = RTGUI_WORKBENCH ( RTGUI_WIDGET ( setting_view )->parent );
rtgui_workbench_remove_view ( workbench, setting_view );
rtgui_view_destroy ( setting_view );
setting_view = RT_NULL;
return RT_TRUE;
}
}
else
{
line = rtgui_malloc(256);
dc = rtgui_dc_begin_drawing ( widget );
rtgui_widget_get_rect ( widget, &rect );
rect.y1 = yy2;
rect.y2 = rect.y1 + 18;
yy2 = rect.y2;
sprintf(line, "请按键:%s",ecmd->command_string);
rtgui_dc_draw_text(dc, line, &rect);
rtgui_dc_end_drawing ( dc );
rtgui_free(line);
return RT_TRUE;
}
}
case RTGUI_EVENT_KBD:
{
struct rtgui_event_kbd* ekbd;
ekbd = ( struct rtgui_event_kbd* ) event;
if ( ekbd->type == RTGUI_KEYDOWN && ekbd->key == RTGUIK_RETURN )
{
rtgui_workbench_t* workbench;
workbench = RTGUI_WORKBENCH ( RTGUI_WIDGET ( setting_view )->parent );
rtgui_workbench_remove_view ( workbench, setting_view );
rtgui_view_destroy ( setting_view );
setting_view = RT_NULL;
return RT_TRUE;
}
return RT_FALSE;
}
}
return rtgui_view_event_handler ( widget, event );
}
void remote_study_ui(rtgui_workbench_t* workbench)
{
father_workbench = workbench;
setting_view = rtgui_view_create ( "setting_view" );
/* 指定视图的背景色 */
RTGUI_WIDGET_BACKGROUND ( RTGUI_WIDGET ( setting_view ) ) = green;
/* this view can be focused */
RTGUI_WIDGET ( setting_view )->flag |= RTGUI_WIDGET_FLAG_FOCUSABLE;
//设置服务函数
rtgui_widget_set_event_handler ( RTGUI_WIDGET ( setting_view ), view_event_handler );
/* 添加到父workbench中 */
rtgui_workbench_add_view ( father_workbench, setting_view );
/* 非模式方式显示视图 */
rtgui_view_show ( setting_view, RT_FALSE );
//启动学习线程
{
rt_thread_t remote_study_thread;
remote_study_thread = rt_thread_create("rm_study",
remote_study_thread_entry, RT_NULL,
2048, 30, 2);
if (remote_study_thread != RT_NULL)rt_thread_startup(remote_study_thread);
}
}
static struct rtgui_event_kbd kbd_event;
static void remote_thread_entry(void *parameter)
{
/* init keyboard event */
RTGUI_EVENT_KBD_INIT(&kbd_event);
kbd_event.mod = RTGUI_KMOD_NONE;
kbd_event.unicode = 0;
while(1)
{
/* 等待信号量,信号量在捕获到一定的数据后被释放 */
if (rt_sem_take(&sem_IR,RT_WAITING_FOREVER) == RT_EOK)
{
kbd_event.key = RTGUIK_UNKNOWN;
if( rem_mode == 2)
{
rem_encoder(&kbd_event);
}
if( kbd_event.key != RTGUIK_UNKNOWN)
{
kbd_event.type = RTGUI_KEYDOWN;
/* post down event */
rtgui_server_post_event(&(kbd_event.parent), sizeof(kbd_event));
rt_thread_delay(20);
/* post up event */
kbd_event.type = RTGUI_KEYUP;
rtgui_server_post_event(&(kbd_event.parent), sizeof(kbd_event));
}
}
}
}
void remote_init(void)
{
rt_thread_t remote_thread;
rm_code = rt_malloc( remote_code_len_max*2 );
if (rm_code == RT_NULL) return;
rt_sem_init(&sem_IR,"sem_IR", 0,RT_IPC_FLAG_FIFO);
rem_start();
remote_thread = rt_thread_create("remote",
remote_thread_entry, RT_NULL,
384, 30, 2);
if (remote_thread != RT_NULL)rt_thread_startup(remote_thread);
}