网站建设中企动力推荐,织梦旅游网站,爱给网素材官网app,亚马逊购物目录
一、html控制LED
二、模拟数据上传到html 一、html控制LED
简单来说就是html给boa服务器发了一个控制指令信息#xff0c;然后boa转发给cgi进程#xff0c;cgi通过消息队列和主进程通信。主进程再去启动LED子线程。 这是老师给的工程。
以前学32都有这工具那工具来管…目录
一、html控制LED
二、模拟数据上传到html 一、html控制LED
简单来说就是html给boa服务器发了一个控制指令信息然后boa转发给cgi进程cgi通过消息队列和主进程通信。主进程再去启动LED子线程。 这是老师给的工程。
以前学32都有这工具那工具来管理现在就是自己建文件夹然后写makefile来管理
先来看看makefile KERNELDIR :/home/book/Linux_4412/kernel/linux-3.14 PWD :$(shell pwd) CROSS_COMPILEarm-none-linux-gnueabi- #CROSS_COMPILE CC$(CROSS_COMPILE)gcc CPcp ARM_DRVDIR~/nfs_rootfs/drv/ NFS_BOA_WWWDIR~/nfs_rootfs/boa/www/ NFS_BOA_CGIDIR~/nfs_rootfs/boa/cgi-bin/ obj-m demo.o all: $(MAKE) -C $(KERNELDIR) M$(PWD) modules $(CC) -o cgi_led.cgi -static cgi_led.c mv *.o *.mod.c *.order *.symvers obj install: sudo cp demo.ko $(ARM_DRVDIR) sudo cp *.mp3 *.jpg led.html $(NFS_BOA_WWWDIR) sudo cp cgi_led.cgi $(NFS_BOA_CGIDIR) clean: $(MAKE) -C $(KERNELDIR) M$(PWD) clean rm -rf cgi_led.cgi 主要就是调用内核的makefile来编译我们的驱动程序然后编译我们的LED的C文件生成cgi。
为了方便加上clean和install命令
/*************************************************************************# FileName : test.c# Author : fengjunhui # Email : 18883765905163.com # Created : 2017年07月03日 星期一 15时48分02秒************************************************************************/#includestdio.h
#include stdlib.h
#include sys/types.h
#include sys/stat.h
#include fcntl.h
#include unistd.h#include sys/ioctl.h
#include linux/limits.h
#include errno.h
#include chardev.h#define LED_DEVICE /dev/chrdev0
#define MAX_BUFFER_SIZE PIPE_BUFint main(int argc, const char *argv[])
{int i 0,j 3;int nread;int led_control,led_state;int led_fd,fifo_fd;led_desc_t led;char *data;led_fd open(LED_DEVICE,O_RDWR);if(led_fd 0){printf(open failed !\n);}printf(open device success! led_fd: %d\n,led_fd);printf(Content-type: text/html;charsetutf-8\n\n);printf(html\n);printf(headtitlecgi control led web/title/head\n);printf(body\n);printf(pled is setted successful! you can watch the leds change/p\n);//printf(pa herfhttp://192.168.1.100/led.htmlgo back/a/p\n);printf(a href\/led.html\go back led control page /a);printf(/body\n);data getenv(QUERY_STRING); //getenv()读取环境变量的当前值的函数 if(sscanf(data,led_control%dled_state%d,led_control,led_state)!2){ //利用sscnaf函数的特点将环境变量分别提取出led_control和led_state这两个值printf(pplease input right); printf(/p);} printf(pled_control %d,led_state %d/p, led_control, led_state);if(led_control 2 || led_control 5) { printf(pPlease input 2led_control5!); printf(/p);} if(led_state1) {printf(pPlease input 0led_state1!); printf(/p); }led.led_num led_control;led.led_state led_state;if(led.led_state 0){ioctl(led_fd,FS_LED_OFF,led);}else if(led.led_state 1){ioctl(led_fd,FS_LED_ON,led);}else if(led.led_state 2){while(j --){for(i 2; i 5; i ){led.led_num i;led.led_state 0;ioctl(led_fd,FS_LED_OFF,led);usleep(500000);led.led_state 1;ioctl(led_fd,FS_LED_ON,led);usleep(500000);}}}close(led_fd);printf(/html\n);return 0;
}这是老师再17年写的老代码了主要就是接收html的指令然后发给A9主进程但是由于这只是个测试所以没用主进程直接再这个cgi进程中操作LED了。
昨天发烧没看清录视频讲错了。
#include linux/module.h
#include linux/init.h
#include linux/fs.h
#include linux/device.h
#include asm/uaccess.h
#include asm/io.h#include chardev.hconst char *name chrdev;
unsigned int major ;
struct class *cls;
struct device *dev;#define GPX2CON 0x11000c40
#define GPX2DAT 0x11000c44
#define GPX1CON 0x11000c20
#define GPX1DAT 0x11000c24
#define GPF3CON 0x114001e0
#define GPF3DAT 0x114001e4void __iomem * gpx2con_vir;
void __iomem * gpx2dat_vir;
void __iomem * gpx1con_vir;
void __iomem * gpx1dat_vir;
void __iomem * gpf3con_vir;
void __iomem * gpf3dat_vir;char kbuf[] {1,2,3,4};loff_t demo_llseek(struct file *filp, loff_t offset, int cnt)
{printk(----%s---%d\n,__func__,__LINE__);return 0;
}ssize_t demo_read(struct file *filp, char __user *usrbuf, size_t count, loff_t *offset)
{int bytes 0;printk(----%s---%d\n,__func__,__LINE__);bytes copy_to_user(usrbuf,kbuf,4);if(bytes 0){printk(copy_to_user failed!\n);}return 0;
}ssize_t demo_write(struct file *filp, const char __user *usrbuf, size_t size, loff_t *offset)
{int bytes 0;printk(----%s---%d\n,__func__,__LINE__);bytes copy_from_user(kbuf,usrbuf,4);if(bytes 0){printk(copy_from_user failed\n);return -1;}printk(copy_from_user usrbuf:%c\n,kbuf[0]);return 0;
}long demo_ioctl(struct file *filp, unsigned int cmd, unsigned long args)
{int i;led_desc_t *led (led_desc_t *)args;printk(----%s---%d\n,__func__,__LINE__);switch(cmd){case FS_LED_ON:i led-led_num;printk(i %d\n,i);if(i 2){writel(readl(gpx2dat_vir) | (0x1 7),gpx2dat_vir);}else if(i 3){writel(readl(gpx1dat_vir) | (0x1 0),gpx1dat_vir);}else if(i 4){writel(readl(gpf3dat_vir) | (0x1 4),gpf3dat_vir);}else if(i 5){writel(readl(gpf3dat_vir) | (0x1 5),gpf3dat_vir);}printk(FS_LED_ON. \n);break;case FS_LED_OFF:i led-led_num;printk(i %d\n,i);if(i 2){writel(readl(gpx2dat_vir)~(0x1 7),gpx2dat_vir);}else if(i 3){writel(readl(gpx1dat_vir)~(0x1 0),gpx1dat_vir);}else if(i 4){writel(readl(gpf3dat_vir)~(0x1 4),gpf3dat_vir);}else if(i 5){writel(readl(gpf3dat_vir)~(0x1 5),gpf3dat_vir);}printk(FS_LED_OFF. \n);break;default:printk(default :....\n);break;}return 0;
}int demo_open(struct inode *inode, struct file *filp)
{//硬件的初始化工作--收发数据的初始化printk(----%s---%d\n,__func__,__LINE__);return 0;
}int demo_close(struct inode *inode, struct file *filp)
{printk(----%s---%d\n,__func__,__LINE__);return 0;
}const struct file_operations fops {.opendemo_open,.llseekdemo_llseek,.readdemo_read,.writedemo_write,.unlocked_ioctldemo_ioctl,.releasedemo_close,
};void gpio_ioremap(void)
{gpx2con_vir ioremap(GPX2CON,8);gpx2dat_vir gpx2con_vir 4;gpx1con_vir ioremap(GPX1CON,8);gpx1dat_vir gpx1con_vir 4;gpf3con_vir ioremap(GPF3CON,8);gpf3dat_vir gpf3con_vir 4;writel((readl(gpx2con_vir) ~(0XF 28))| (0x1 28),gpx2con_vir);writel((readl(gpx1con_vir) ~(0XF 0))| (0x1 0),gpx1con_vir);writel((readl(gpf3con_vir) ~(0XF 16 ))| (0x1 16),gpf3con_vir);writel((readl(gpf3con_vir) ~(0XF 20 ))| (0x1 20),gpf3con_vir);}static int __init demo_init(void)
{printk(----%s---%d\n,__func__,__LINE__);major register_chrdev(0,name,fops); if(major 0){printk(register_chrdev failed!\n);}printk(register_chrdev success .major: %d\n,major);cls class_create(THIS_MODULE,name);if(cls NULL){printk(class_create failed!\n);}dev device_create(cls, NULL,MKDEV(major,0),NULL,chrdev0);if(dev NULL){ printk(device_create failed!\n);}gpio_ioremap();return 0;
}void viraddr_iounmap(void)
{iounmap(gpx2con_vir);iounmap(gpx1con_vir);iounmap(gpf3con_vir);
}static void __exit demo_exit(void)
{printk(----%s---%d\n,__func__,__LINE__);viraddr_iounmap();device_destroy(cls,MKDEV(major,0));class_destroy(cls);unregister_chrdev(major,name);
}module_init(demo_init);
module_exit(demo_exit);
MODULE_LICENSE(GPL);这就是一个LED的驱动程序
html xmlnshttp://www.w3.org/1999/xhtmlheadmeta http-equivContent-Type contenttext/html; charsetutf-8 / titleweb控制A9开发板led/title/headbody background./makeru-desktop.jpgbr/embed src./meiyanfang.mp3 autostarttrue looptrue hiddentrue h1 aligncenter基于Cortex-A9的web控制LED灯/h1!--新建一个表单动作链接到开发板的/cgi-bin/cgi_led.cgi采用的方法为GET-- form action/cgi-bin/cgi_led.cgi methodget p aligncenterWeb端的led的控制测试/pp aligncenter请输入需要控制的led:input typetext nameled_control//pp aligncenter请输入LED控制命令 :input typetext nameled_state//ph2 aligncenter (0熄灭-1点亮-2流水)/h2 p aligncenterinput typesubmit valuesure/ input typereset valueback//p/form/body
/htmlLED的前端程序和搞web的差远了哈这个不用精通会点就行这部分工作以后公司有专人做的。 嵌入式安防监控项目——LED控制_哔哩哔哩_bilibili
二、模拟数据上传到html
#include data_global.h
#include sem.h#define N 1024 //for share memoryextern int shmid;
extern int msgid;
extern int semid;extern key_t shm_key;
extern key_t sem_key;
extern key_t key; //msg_keyextern pthread_mutex_t mutex_client_request,mutex_refresh,mutex_sqlite,mutex_transfer,mutex_analysis,mutex_sms,mutex_buzzer,mutex_led,mutex_camera;extern pthread_cond_t cond_client_request,cond_refresh,cond_sqlite,cond_transfer,cond_analysis,cond_sms,cond_buzzer,cond_led,cond_camera;extern struct env_info_client_addr sm_all_env_info;struct shm_addr{char shm_status; //shm_statusԵhome_idֹڴstruct env_info_client_addr sm_all_env_info;
};
struct shm_addr *shm_buf;int file_env_info_struct(struct env_info_client_addr *rt_status,int home_id);void *pthread_refresh(void *arg)
{//semaphore for access to resource limitsif((sem_key ftok(/tmp,i)) 0){perror(ftok failed .\n);exit(-1);}semid semget(sem_key,1,IPC_CREAT|IPC_EXCL|0666);if(semid -1) {if(errno EEXIST){semid semget(sem_key,1,0777);}else{perror(fail to semget);exit(1);}}else{init_sem (semid, 0, 1);}//share memory for env_info refresh configif((shm_key ftok(/tmp,i)) 0){perror(ftok failed .\n);exit(-1);}shmid shmget(shm_key,N,IPC_CREAT|IPC_EXCL|0666);if(shmid -1) {if(errno EEXIST){shmid shmget(key,N,0777);}else{perror(fail to shmget);exit(1);}}//share memapif((shm_buf (struct shm_addr *)shmat(shmid,NULL,0)) (void *)-1){perror(fail to shmat);exit(1);}printf(pthread_refresh ......\n);#if 1bzero (shm_buf, sizeof (struct shm_addr));while(1){sem_p(semid,0);shm_buf-shm_status 1;file_env_info_struct(shm_buf-sm_all_env_info,shm_buf-shm_status);sleep(1);sem_v(semid,0);}
#endif }int file_env_info_struct(struct env_info_client_addr *rt_status,int home_id)
{int env_info_size sizeof(struct env_info_client_addr);printf(env_info_size %d.\n,env_info_size);rt_status-monitor_no[home_id].zigbee_info.temperature 10.0;rt_status-monitor_no[home_id].zigbee_info.tempMIN 2.0;rt_status-monitor_no[home_id].zigbee_info.tempMAX 20.0;rt_status-monitor_no[home_id].zigbee_info.humidity 20.0;rt_status-monitor_no[home_id].zigbee_info.humidityMIN 10.0;rt_status-monitor_no[home_id].zigbee_info.humidityMAX 30.0;rt_status-monitor_no[home_id].zigbee_info.reserved[0] 0.01;rt_status-monitor_no[home_id].zigbee_info.reserved[1] -0.01;rt_status-monitor_no[home_id].a9_info.adc 9.0;rt_status-monitor_no[home_id].a9_info.gyrox -14.0;rt_status-monitor_no[home_id].a9_info.gyroy 20.0;rt_status-monitor_no[home_id].a9_info.gyroz 40.0;rt_status-monitor_no[home_id].a9_info.aacx 642.0;rt_status-monitor_no[home_id].a9_info.aacy -34.0;rt_status-monitor_no[home_id].a9_info.aacz 5002.0;rt_status-monitor_no[home_id].a9_info.reserved[0] 0.01;rt_status-monitor_no[home_id].a9_info.reserved[1] -0.01;return 0;
}这是A9刷新的线程程序
#include stdio.h
#include stdlib.h
#include sys/types.h
#include sys/ipc.h
#include sys/shm.h
#include string.h
#include errno.h
#include sys/sem.h
#include unistd.h
#include sem.h
#include cgic.h
#include data_global.h#define N 32#define MONITOR_NUM 1char status[2][6] {Close, Open};
char fan_status[4][6] {Close, One, Two, Three};struct shm_addr{char shm_status;struct env_info_client_addr sm_all_env_info;
};int cgiMain()
{key_t key;int shmid,semid;struct shm_addr *shm_buf;if((key ftok(/tmp,i)) 0){perror(ftok);exit(1);}printf(key %x\n,key);if((semid semget(key, 1, 0666)) 0){perror(semget);exit(1);}if((shmid shmget(key, N, 0666 )) -1){perror(shmget);exit(1);}if((shm_buf (struct shm_addr*)shmat(shmid, NULL, 0)) (void*)-1 ){perror(shmat);exit(1);}sem_p(semid,0);cgiHeaderContentType(text/html);fprintf(cgiOut, headmeta http-equiv\refresh\ content\1\style!--body{line-height:50%}--/style /head);fprintf(cgiOut, HTML\n);fprintf(cgiOut, BODY bgcolor\#666666\\n);
//fprintf(cgiOut, h1font color\#FF0000\HOME_ID #%d:/font/H2\n , shm_buf-shm_status);if (shm_buf-shm_status 1){fprintf(cgiOut, scriptfunction show(){var date new Date(); var now \\; now date.getFullYear()\年\; now now (date.getMonth()1)\月\; \ now now date.getDate()\日\; now now date.getHours()\时\; now now date.getMinutes()\分\;now now date.getSeconds()\秒\; document.getElementById(\nowDiv\).innerHTML now; setTimeout(\show()\,1000);} /script \n ); fprintf(cgiOut, h2font face\Broadway\font color\#00FAF0\Home1 Real-time Environment Info:/font/font/H2\n );fprintf(cgiOut, h2 aligncenterfont color\#cc0033\body onload\show()\ div id\nowDiv\/div/font/h2 \n ); fprintf(cgiOut, h4ZIGBEE数据显示部分/H4\n );fprintf(cgiOut, h4Temperature:\t%0.2f/H4\n , shm_buf-sm_all_env_info.monitor_no[shm_buf-shm_status].zigbee_info.temperature );fprintf(cgiOut, h4Humidity:\t%0.2f/H4\n , shm_buf-sm_all_env_info.monitor_no[shm_buf-shm_status].zigbee_info.humidity);fprintf(cgiOut, h4A9数据显示部分/H4\n );fprintf(cgiOut, h4Adc:\t%0.2f/H4\n , shm_buf-sm_all_env_info.monitor_no[shm_buf-shm_status].a9_info.adc);fprintf(cgiOut, h4GYROX:\t%d/H4\n , shm_buf-sm_all_env_info.monitor_no[shm_buf-shm_status].a9_info.gyrox);fprintf(cgiOut, h4GYROY:\t%d/H4\n , shm_buf-sm_all_env_info.monitor_no[shm_buf-shm_status].a9_info.gyroy);fprintf(cgiOut, h4GYROZ:\t%d/H4\n , shm_buf-sm_all_env_info.monitor_no[shm_buf-shm_status].a9_info.gyroz);fprintf(cgiOut, h4AACX :\t%d/H4\n , shm_buf-sm_all_env_info.monitor_no[shm_buf-shm_status].a9_info.aacx);fprintf(cgiOut, h4AACY :\t%d/H4\n , shm_buf-sm_all_env_info.monitor_no[shm_buf-shm_status].a9_info.aacy);fprintf(cgiOut, h4AACZ :\t%d/H4\n , shm_buf-sm_all_env_info.monitor_no[shm_buf-shm_status].a9_info.aacz);fprintf(cgiOut, h4A9-RESERVED[0]:\t%d/H4\n , shm_buf-sm_all_env_info.monitor_no[shm_buf-shm_status].a9_info.reserved[0]);fprintf(cgiOut, h4A9-RESERVED[1]:\t%d/H4\n , shm_buf-sm_all_env_info.monitor_no[shm_buf-shm_status].a9_info.reserved[1]);fprintf(cgiOut, h4STM32数据显示部分/H4\n );fprintf(cgiOut, h4....../H4\n );}else{fprintf(cgiOut, h2font face\Broadway\font color\#FFFAF0\Close!/font/font/H2\n ); }
// fprintf(cgiOut, h3:/H3\n ); fprintf(cgiOut, /BODY/HTML\n); sem_v (semid, 0);return 0;
}#include stdio.h
#include stdlib.h
#include string.h
#include sys/types.h
#include sys/ipc.h
#include sys/msg.h
#include unistd.h
#include errno.h
#include cgic.h
#include data_global.h#define home_id 1struct shm_addr{char shm_status; //shm_status可以等于home_id用来区分共享内存数据struct env_info_client_addr sm_all_env_info;
};
struct shm_addr *shm_buf;#if 0
struct setEnv
{int temMAX;int temMIN;int humMAX;int humMIN;int illMAX;int illMIN;
};
#endif int cgiMain()
{key_t key;char sto_no[2];char buf[20];struct shm_addr new;int msgid;struct msg msg_buf;memset(msg_buf,0,sizeof(msg_buf));cgiFormString(store, sto_no, 2);cgiFormString(temMAX, buf, 20);new.sm_all_env_info.monitor_no[home_id].zigbee_info.tempMAX atoi(buf);cgiFormString(temMIN, buf, 20);new.sm_all_env_info.monitor_no[home_id].zigbee_info.tempMIN atoi(buf);cgiFormString(humMAX, buf, 20);new.sm_all_env_info.monitor_no[home_id].zigbee_info.humidityMAX atoi(buf);cgiFormString(humMIN, buf, 20);new.sm_all_env_info.monitor_no[home_id].zigbee_info.humidityMIN atoi(buf);//cgiFormString(illMAX, buf, 20);//new.illMAX atoi (buf);//cgiFormString(illMIN, buf, 20);//new.illMIN atoi (buf);if((key ftok(/tmp, g)) 0){perror(ftok);exit(1);}if((msgid msgget(key, 0666)) 0){perror(msgget);exit(1);}memcpy (msg_buf.text1, new, 24);msg_buf.type 1L;msg_buf.msgtype 5L;msg_buf.text[0] sto_no[0];msgsnd(msgid, msg_buf,sizeof(msg_buf)-sizeof(long),0);sto_no[0] - 48;cgiHeaderContentType(text/html\n\n); fprintf(cgiOut, HTMLHEAD\n); fprintf(cgiOut, TITLEMy CGI/TITLE/HEAD\n); fprintf(cgiOut, BODY); fprintf(cgiOut, H2send sucess/H2);//fprintf(cgiOut, a href.html返回/a); fprintf(cgiOut, meta http-equiv\refresh\ content\1;url../home%d.html\, sto_no[0]);fprintf(cgiOut, /BODY\n); fprintf(cgiOut, /HTML\n); return 0; }这俩是CGI相关的程序都是为了完成数据的刷新 录了讲解视频后面发评论区
