前言

本章介绍如何实现迪文屏与飞凌OKT507的uart事件通信。

代码

从上到下是uart_example.c、dwin.c、dwin.h、makefile

#include "dwin.h"#include     <stdio.h>
#include     <stdlib.h>
#include     <unistd.h>
#include     <sys/types.h>
#include     <sys/stat.h>
#include     <fcntl.h>
#include     <termios.h>
#include     <errno.h>
#include     <sys/time.h>
#include     <string.h>
#include     <getopt.h>
#include    "stdbool.h"// #include "dwin.h"
// #include "//delay.h"
#define uint8_t u_int8_t
#define bool _Boolextern void u8_to_char(uint8_t * , char ** );
extern int judge_dwin_cmd(uint8_t ** );
extern int get_len(uint8_t *cmd_u8);
extern dwin_event_flag uart_judge_dwin_event(i_dwin_cmd * cmd);
extern i_dwin_cmd temp_cmd_recv;
extern dwin_event_key event_key_list[EVENT_KEY_NUM_MAX];
extern dwin_event_key_spec event_key_spec[EVENT_KEY_SPEC_NUM_MAX];// extern char* u8_to_char(uint8_t * );extern c_dwin_cmd cmd_recv_char; // from dwin
extern c_dwin_cmd cmd_send_char; // send to dwin
extern dwin_event_flag c_judge_dwin_event(c_dwin_cmd * cmd);
extern void c_dwin_cmd_analysis(char * in,c_dwin_cmd *cmd);
extern void c_print_cmd(c_dwin_cmd *cmd);
// extern void print_uint8(uint8_t * in);
// #define false FALSE
// #define true TRUE/* E53模块中* UART0_RX_M0 -> GPIO0_B6* UART0_TX_M0 -> GPIO0_B7*/
#define UART_ID                 0#define UART_RECV_LEN           1024
#define BUF_RX_MAX 512
#define LEN_CHAR_TEMP 17c_dwin_cmd cmd_char;int search_str_end(uint8_t *str_z, int count)
{int temp_zero = 1;int temp_count = count -1;  // 有效字符11个，12个是0x00printf("init count = %d, temp_count = %d\n",count,temp_count);uint8_t *str_temp1 = str_z;while(1){printf("str = [%02X], temp_zero = [%d], temp_count = [%d]\n",*str_temp1,temp_zero,temp_count);// if find 10 zero, will return countif(*str_temp1 != 0x00){printf("value = %02X, %ld\n",*str_temp1,str_temp1-str_z);temp_count += temp_zero;str_temp1++;temp_zero = 1;}else{temp_zero++;printf("value = %02X, %ld\n",*str_temp1,str_temp1-str_z);}if(temp_zero > 10)break;}printf("init count = %d, temp_count = %d\n",count,temp_count);return temp_count;
}int my_strlen(uint8_t *str)
{printf("enter my_strlen");uint8_t *str_temp = str;// assert(str);int count = 0;// while (*str != '\0') // this will ignore 0x00while (*str_temp != '\0'){printf("value = %02X, %ld\n",*str_temp,str_temp-str);count++;str_temp++;}// has found 0x00, str end. but uart data may contents 0x00 .. 0x00// so, need to judge next valuecount = search_str_end(str_temp-1,count);// int temp_count = count;// for(int i=0;i<10;i++)// {//     if(*str_temp =='\0')//     {//         temp_count++;//         str_temp++;//         // printf("temp_count = %d\n",temp_count);//     }//     else//         break;// }// // printf("temp_count = %d,count=%d\n",temp_count,count);// if(temp_count == count+10)//     printf("search 10 0x00 \n");// else// {//     printf("has find 0x00 \n");//     printf("end1 temp_count = %d,count=%d\n",temp_count,count);//     return temp_count;// }// printf("end 2 temp_count = %d,count=%d\n",temp_count,count);return count;
}int judge_char(uint8_t * str)
{if (str != NULL){// not emptyprintf("enter judge_char");if (my_strlen(str) != 0) {// not '\0'return 1;            }elsereturn 0;}elsereturn -1;
}// unsigned int uart_init(void)
// {//     unsigned int ret;
//     UartAttribute attr;//     LzUartDeinit(UART_ID);//     attr.baudRate = 115200;
//     attr.dataBits = UART_DATA_BIT_8;
//     attr.pad = FLOW_CTRL_NONE;
//     attr.parity = UART_PARITY_NONE;
//     attr.rxBlock = UART_BLOCK_STATE_NONE_BLOCK;
//     attr.stopBits = UART_STOP_BIT_1;
//     attr.txBlock = UART_BLOCK_STATE_NONE_BLOCK;//     // 使用UART0
//     PinctrlSet(GPIO0_PB6, MUX_FUNC2, PULL_KEEP, DRIVE_LEVEL2);
//     PinctrlSet(GPIO0_PB7, MUX_FUNC2, PULL_KEEP, DRIVE_LEVEL2);//     ret = LzUartInit(UART_ID, &attr);
//     if (ret <0)
//     {//         printf("%s, %d: LzUartInit(%d) failed!\n", __FILE__, __LINE__, ret);
//         return 1;
//     }//     return 0;
// }void func_uart_write(uint8_t * str, int fd)
{printf("enter func_uart_write");unsigned int ret;// printf("Youkai : %s, %d: uart write!\n", __FILE__, __LINE__);// plus 3 due to dwin has head1/2/lenret = write(fd, str, *(str+2));if (ret <0){printf("%s, %d: LzUartInit(%d) failed!\n", __FILE__, __LINE__, ret);return;}//delay(100);
}// void print_uint8(uint8_t * in)
// {//     printf("----temp: len[%d]\t[",*(in+2));
//     for(int i =0;i< 8;i++)
//     {//         printf("%02X",*(in+i));
//     }
//     printf("]\n");
// }void uint8_2_char(uint8_t * in,char * out, int cp_len)
{// printf("----temp: len[%d]\t[",*(in+2));printf("raw uint8_t data[");int cmd_len=*(in+2)+3;char tmp[3];memset(tmp,0x00,3);for(int i =0;i< cp_len;i++){printf("%02X",*(in+i));sprintf(tmp,"%02X",*(in+i));strcat(out,tmp);memset(tmp,0x00,3);}printf("]\n");
}void main(void)
{int fd;int nread;char buf_rx[BUF_RX_MAX+1];int n=0,i=0;// char* dev  = NULL;char dev[]  = "/dev/ttyS5";struct termios oldtio,newtio;speed_t speed = B115200;int next_option,havearg = 0,flow = 0;/*  打开串口 */fd = open(dev, O_RDWR | O_NONBLOCK| O_NOCTTY | O_NDELAY); if (fd < 0)    {printf("Can't Open Serial Port!\n");exit(0);    }printf("Welcome to uart buf_tx\n");//save to oldtiotcgetattr(fd,&oldtio);bzero(&newtio,sizeof(newtio));newtio.c_cflag = speed|CS8|CLOCAL|CREAD;newtio.c_cflag &= ~CSTOPB;newtio.c_cflag &= ~PARENB;newtio.c_iflag = IGNPAR;  newtio.c_oflag = 0;// newtio.c_cc[VTIME]=10;tcflush(fd,TCIFLUSH);  tcsetattr(fd,TCSANOW,&newtio);  tcgetattr(fd,&oldtio);memset(buf_rx,0,BUF_RX_MAX+1);char buf_tx[100]="forlinx_uart_test.1234567890...";printf("Send buf_tx data:\n[%s] [%ld]\n",buf_tx,strlen(buf_tx));write(fd, buf_tx, strlen(buf_tx));fd_set rd;int flag_rx=0;bool flag_rx1= false;bool flag_rx2 = false;bool flag_print=true;int cmd_len=0;uint8_t str_send[UART_RECV_LEN] = "HelloWorld!\n";char str_send_char[513] = "";uint8_t recv_int8[UART_RECV_LEN];char recv_char[UART_RECV_LEN];uint8_t recv_int8_t[9];char recv_char_t[LEN_CHAR_TEMP];char *recv_char_p=NULL;// char **recv_char_addr=&recv_char;// status set true, will allow to send uart msg from xiaolinpai to dwinbool status_uart_send = false;init_dwin_status();// dwin_cmd_init_send();// i_dwin_cmd * p_cmd_send = &cmd_send;// dwin_cmd_init_send(p_cmd_send);// ------------------- test uint8 to char -------------------uint8_t xxx[]={0X5A,0XA5,0X05,0X82,0X10,0X00,0X00,0X01};// u8_2_char(xxx);char *yyy=(char *)malloc(get_len(recv_int8));u8_to_char(xxx,&yyy);// yyy = (char *)u8_to_char(xxx);printf("yyy = %s\n",yyy);// ------------------- test uint8 to char -------------------printf("enter while\n");printf("youkai\n");while (1){// ----------------- uart write -----------------// if(status_uart_send == true)// {//     printf("enter send uart\n");//     // judge if str_send is empty//     // int temp = -1;//     // temp = judge_char(str_send);//     // if(temp == 1)//     if(*str_send != 0x00)//     {//         printf("func_uart_write before\n");//         func_uart_write(str_send,fd);//         printf("func_uart_write end\n");//     }//     memset(str_send,0x00,259);//     // if send ok, //     // status_uart_send = false;// }//delay(100);// // printf("Youkai : %s, %d: uart write!\n", __FILE__, __LINE__);// ret = write(UART_ID, str_send, my_strlen(str_send));// if (ret <0)// {//     printf("%s, %d: LzUartInit(%d) failed!\n", __FILE__, __LINE__, ret);//     return;// }// ----------------- uart read -----------------memset(recv_int8_t,0x00,UART_RECV_LEN);int nread = read(fd, recv_int8_t, UART_RECV_LEN);if (nread >  0){// 接收到的是字符串 "5AA5" 4// printf("temp: len[%ld]\t[%s]\n",strlen(recv_int8_t),recv_int8_t);// 接收到的是十六进制数 0x5AA5 2// printf(">>>>%d,,%d\n",*recv_int8_t,*(recv_int8_t+1));if(*recv_int8_t==0x5a && *(recv_int8_t+1)==0xa5){cmd_len=*(recv_int8_t+2)+3;cmd_len=2*cmd_len ;printf("\ncmd len = %d\n",cmd_len);// if(recv_char_p == NULL)// {  //     recv_char_p=(char*)malloc(cmd_len+1);// }}// printf("uart read= %d\n",nread);// sprintf(recv_char_t,"%02X",recv_int8_t);memset(recv_char_t,0x00,LEN_CHAR_TEMP);uint8_2_char(recv_int8_t,recv_char_t, nread);// u8_to_char(recv_int8_t,&recv_char_t);// printf("recv_char_t = [%s]\n",recv_char_t);strcat(recv_char,recv_char_t);// strcat(recv_char_p,recv_char_t);printf("recv_char = [%s]\n",recv_char);// // 获取长度，16进制传输// int temp_len_i=get_len(recv_int8);// printf("temp_len=%d\n",temp_len_i);// printf("temp: len[%02x]\t[",*(recv_int8_t+2),recv_int8_t);// 收到数据设置状态flag_rx1=true;flag_rx2=true;}else if(nread < 0 ){printf("%s, %d: LzUartInit(%d) failed!\n", __FILE__, __LINE__, nread);return;}if(nread == 0){// 判断传输停止if(flag_rx1==true&&flag_rx2==true){flag_rx2=false;}else if(flag_rx1==true&&flag_rx2==false){flag_rx1=false;printf("judge 1\n");if(strlen(recv_char)>0){printf("strlen = %ld _ cmd_len=%d\n",strlen(recv_char),cmd_len);if(strlen(recv_char)==cmd_len)// if(strlen(recv_char_p)==cmd_len){printf(">>>recv_cmd_char = [%s]\n",recv_char);// printf(">>>recv_cmd_char = [%s]\n",recv_char_p);// c_judge_dwin_event(&cmd_recv_char);// c_dwin_cmd_analysis(&recv_char_p,&cmd_recv_char);c_dwin_cmd_analysis(recv_char,&cmd_recv_char);// c_print_cmd(&cmd_recv_char);// free(recv_char_p);tcflush(fd, TCIOFLUSH);}memset(recv_char,0x00,UART_RECV_LEN);}}}}close(fd);return;
}


#include "dwin.h"// DATA FORMAT: head  + date len + write/read + addr + read_len / write_value
//              5A A5 +          +    82/83   + 3000 +    01    /     3132
// ps: date_len = write/read(1) + addr(2) + read_len / write_value(1/2)
// date_len is the number bytes of end date_len
#define DWIN_CMD_HEAD_1  0x5A//{0x5A,0XA5}//"\x5A\xA5"
#define DWIN_CMD_HEAD_2  0xA5
#define DWIN_CMD_WRITE   0x82
#define DWIN_CMD_READ    0x83#define DWIN_CMD_OK "5AA503824F4B\0"#define DWIN_CMD_POINT_HEAD1 0
#define DWIN_CMD_POINT_HEAD2 1
#define DWIN_CMD_POINT_LEN 2
#define DWIN_CMD_POINT_WR 3
#define DWIN_CMD_POINT_ADDR1 4
#define DWIN_CMD_POINT_ADDR2 5
#define DWIN_CMD_POINT_VALUE 6// -------------------- data --------------------
// case 1
// malloc char menber to save dwincmd by char format
// char * dwin_cmd_char_temp;// case 2
char dwin_cmd_char_temp[DWIN_CMD_CHAR_MAX];
uint8_t dwin_cmd_u8_temp[DWIN_CMD_U8_MAX];
char * dwin_cmd_char_value;
char temp_c[3];i_dwin_cmd temp_cmd_recv; // from dwin
i_dwin_cmd temp_cmd_send; // send to dwinc_dwin_cmd cmd_recv_char; // from dwin
c_dwin_cmd cmd_send_char; // send to dwindwin_event_key event_key_list[EVENT_KEY_NUM_MAX]={// {//     event_flag, event_name,//     event_status,//     event_addr, event_flag_name,//     event_ops1, enent_ops1// },{EVENT_FLAG_AUDIO_RECORD, "record",EVENT_FLAG_STATUS_STOP,"1503", "EVENT_FLAG_AUDIO_RECORD",func_open_record,   func_close_record},{EVENT_FLAG_CAM_SCAN,    "cam",EVENT_FLAG_STATUS_STOP,"1504", "EVENT_FLAG_CAM_SCAN",func_open_cam,      func_close_cam},{EVENT_FLAG_NFC_SCAN,    "nfc",EVENT_FLAG_STATUS_STOP, "1505", "EVENT_FLAG_NFC_SCAN",func_open_nfc,      func_close_nfc},{EVENT_FLAG_UNKOWN,  "unknow",EVENT_FLAG_STATUS_STOP,"0000" , "EVENT_FLAG_UNKOWN"}
};dwin_event_key_spec event_key_spec[EVENT_KEY_SPEC_NUM_MAX]=
{// special event, just one ops// {//     event_key, event_name,//     event_ops// },{"1502010012",  "search",func_search},// ...{EVENT_KEY_SPEC_VALUE,  "end", func_spec_end}
};// -------------------- event func --------------------// function
void func_open_record()
{printf("--- func_record_open\n");return;
}void func_close_record()
{printf("--- func_close_record\n");return;
}// function
void func_open_cam()
{printf("--- func_cam_open\n");return;
}void func_close_cam()
{printf("--- func_close_cam\n");return;
}// function
void func_open_nfc()
{printf("--- func_nfc_open\n");return;
}void func_close_nfc()
{printf("--- func_close_nfc\n");return;
}void func_search()
{printf("--- func_search\n");return;
}void func_spec_end()
{printf("--- func_spec_end\n");return;
}
// void (*func)();// -------------------- dwin func --------------------void init_dwin_status()
{printf("set all status stop\n");dwin_event_key  * temp_key;temp_key = &event_key_list[0];for(int i =0; temp_key->flag != EVENT_FLAG_UNKOWN; i++){temp_key = &event_key_list[i];temp_key->status = EVENT_FLAG_STATUS_STOP;}return;
}//---------------------------------------------------------
//  FOR uint8_t data  0x5AA5..
//
//
//
//---------------------------------------------------------// cmd save as uint_8
void i_dwin_cmd_clear(i_dwin_cmd * cmd)
{cmd->head[0]=DWIN_CMD_HEAD_1;cmd->head[1]=DWIN_CMD_HEAD_2;cmd->len = 0x00;cmd->wr = 0x00;cmd->addr[0] = 0x00;cmd->addr[1] = 0x00;cmd->value = NULL;if(cmd->cmd_u8 != NULL){free(cmd->cmd_u8);cmd->cmd_u8 = NULL;}if(cmd->cmd_char != NULL){free(cmd->cmd_char);cmd->cmd_char = NULL;}// memset(cmd->cmd_u8,0x00,DWIN_CMD_LEN_U8_MAX);// cmd->cmd_char = NULL;return;
}void dwin_cmd_init_send()
{i_dwin_cmd_clear(&temp_cmd_recv);temp_cmd_recv.wr = DWIN_CMD_WRITE;temp_cmd_recv.cmd_char = NULL;temp_cmd_recv.cmd_u8 = NULL;// memset(temp_cmd_recv.cmd_char,0x00,DWIN_CMD_CHAR_MAX);// memset(temp_cmd_recv.cmd_u8,0x00,DWIN_CMD_LEN_U8_MAX);return;
}// TOTO
// analysis u8 cmd to save in cmd
void uart_dwin_cmd_analysis(uint8_t *in_u8_raw)
{// 1. judge cmd is dwin headuint8_t *cmd_temp = in_u8_raw;if(*(cmd_temp+DWIN_CMD_POINT_HEAD1) == DWIN_CMD_HEAD_1 && *(cmd_temp+DWIN_CMD_POINT_HEAD2)== DWIN_CMD_HEAD_2){printf("this is dwin cmd\n");i_dwin_cmd_clear(&temp_cmd_recv);// 1. save cmd msgtemp_cmd_recv.len = *(cmd_temp + DWIN_CMD_POINT_LEN);temp_cmd_recv.wr = *(cmd_temp + DWIN_CMD_POINT_WR);temp_cmd_recv.addr[0] = *(cmd_temp + DWIN_CMD_POINT_ADDR1);temp_cmd_recv.addr[1] = *(cmd_temp + DWIN_CMD_POINT_ADDR2);temp_cmd_recv.value = cmd_temp + DWIN_CMD_POINT_VALUE;// temp_cmd_recv.cmd_u8 = dwin_cmd_u8_temp;// case1:// copy_u8_2_u8(cmd_temp);//case2:temp_cmd_recv.cmd_u8 = u8_to_u8(in_u8_raw);// print_dwin_cmd(temp_cmd_recv);// uint8_t to char , save in cmd struct// case1:// temp_cmd_recv.cmd_char = dwin_cmd_char_temp;// memset(temp_cmd_recv.cmd_char,0x00,DWIN_CMD_CHAR_MAX);//case2:char *temp_c=NULL;u8_to_char(in_u8_raw,&temp_c);if(temp_c!= NULL)temp_cmd_recv.cmd_char = temp_c;elseprintf("temp_c is null");printf("temp_cmd_recv.cmd_char");// dwin_cmd_uint8_t2char(temp_cmd_recv);// printf("dwin cmd char = %s\n",temp_cmd_recv.cmd_char);// 2. event judgeuart_judge_dwin_event(&temp_cmd_recv);printf("uart_judge_dwin_event");}return;
}// TOTO
dwin_event_flag uart_judge_dwin_event(i_dwin_cmd * cmd)
{printf("\nenter uart_judge_dwin_event\n");// print_dwin_cmd(*cmd);printf("cmd str = %s\n",cmd->cmd_char);// 1. judge okif(strcmp(cmd->cmd_char,DWIN_CMD_OK) == 0){printf("recv ok\n");// get ok, stop send// status_uart_send = false;return EVENT_FLAG_OK;} // 2. judge eventprintf("\nenter uart_judge_dwin_event\n");dwin_event_key * temp_value ;temp_value = &event_key_list[0];for(int i = 0; temp_value->flag != EVENT_FLAG_UNKOWN ; i++){// +8 choose add// printf("search=%s,key=%s\n",cmd->cmd_char + DWIN_CMD_CHAR_ADDR_VALUE ,temp_value.key);// can't use strcmp, due to uart data may have double 0x00if(strstr(cmd->cmd_char + DWIN_CMD_CHAR_ADDR_VALUE, temp_value->key) != NULL){printf("searched key= %s, value=%d, name=%s\n",temp_value->key,temp_value->flag,temp_value->flag_name);if(strstr(cmd->cmd_char + DWIN_CMD_CHAR_VALUE_VALUE, "010001") != NULL){printf("status set open\n");if(temp_value->open != NULL ){temp_value->open();temp_value->status = EVENT_FLAG_STATUS_ING;printf("%s status change: stop -> ing\n",temp_value->event_name);}}if(strstr(cmd->cmd_char + DWIN_CMD_CHAR_VALUE_VALUE, "010000") != NULL){printf("status set close\n");if(temp_value->close != NULL ){temp_value->close();temp_value->status = EVENT_FLAG_STATUS_STOP;printf("%s status change: ing -> stop\n",temp_value->event_name);}}// change_dwin_status(temp_value->flag);// change_dwin_status_key(temp_value);printf("has find match key, event = [%s]\n\n",temp_value->event_name);return temp_value->flag;}temp_value = &event_key_list[i];}printf("hasn't find match key\n");searc_spec_event(cmd);return EVENT_FLAG_UNKOWN;
}void searc_spec_event(i_dwin_cmd * cmd)
{printf("search spec event\n");dwin_event_key_spec * temp_value ;temp_value = &event_key_spec[0];// printf("spec event key = %s\n",temp_value->key);for(int i = 0; strcmp(temp_value->key,EVENT_KEY_SPEC_VALUE) != 0 && i<EVENT_KEY_SPEC_NUM_MAX ; i++){// printf("spec event key = %s\n",temp_value->key);// printf("spec event value = %s\n",cmd->cmd_char + DWIN_CMD_CHAR_ADDR_VALUE);if(strstr(cmd->cmd_char + DWIN_CMD_CHAR_ADDR_VALUE, temp_value->key ) != NULL){temp_value->func();printf("find spec event: {value = %s,\tname = %s,\ttemp_value}\n",temp_value->key,temp_value->event_name);return;}temp_value = &event_key_spec[i];}printf("unfind spec key\n");return;
}// -------------------- basic func  --------------------char * uint8_t2char(uint8_t value)
{memset(temp_c,0x00,3);sprintf(temp_c, "%02X", value);// printf("temp_c = [%s]\n",temp_c);return temp_c;
}void print_dwin_cmd(i_dwin_cmd cmd)
{printf("len=%02X\n",cmd.len);printf("wr=%02X\n",cmd.wr);printf("addr=%02x_%02X\n",cmd.addr[0],cmd.addr[1]);printf("value=%s\n",cmd.cmd_char);return;
}// 串口数据从uint8转换位char，例如0x5AA5，转换为字符串”5AA5“，由2字节转换为4字节
// malloc buffer and return buffer addrvoid u8_to_char(uint8_t * in_u8, char ** out)
{uint8_t * temp_cmd_u8 = in_u8;int len_u8 = *(in_u8 + DWIN_CMD_POINT_LEN ) + 3; // +3 head12/lenint len_char = 2*len_u8 +1;     // +1 '\0'printf("cmd_u8 len_u8=%d,len_char=%d\n",len_u8,len_char);// printf("0\n");// *out = (char *)malloc(len_char);// printf("1\n");memset(*out,0x00,len_char);// printf("2\n");for(int i=0;i<len_u8;i++){// printf("i=%d\n",i);uint8_t temp_int8=*(in_u8+i);// printf("temp_int8 = %02x\n",temp_int8);uint8_t2char( temp_int8 );// printf("before strcat\n");strcat(*out,temp_c);// printf(">>end strcat\n");// temp_cmd_u8++;}// strcat(cmd_char_t,'\0');// *(temp_char + len_char -1) = '\0';printf("u8_to_char out = [%s] \n",*out);// printf("temp_char end\n");return;}uint8_t * u8_to_u8(uint8_t * in_u8)
{uint8_t * temp_in_u8 = in_u8;int len_u8 = *(in_u8 + DWIN_CMD_POINT_LEN) + 3;printf("cmd_u8 len_u8=%d\n",len_u8);uint8_t * temp_out_u8 = (uint8_t *)malloc(len_u8);for(int i=0;i<len_u8;i++){*(temp_out_u8 +i) = *(temp_in_u8 +i);}return temp_out_u8;
}// -------------------- delete func  --------------------void change_dwin_status_key(dwin_event_key *in_key)
{printf("change status \n");if(in_key->status == EVENT_FLAG_STATUS_ING){in_key->status = EVENT_FLAG_STATUS_STOP;printf("%s status change: ing -> stop\n",in_key->event_name);return;}else if(in_key->status == EVENT_FLAG_STATUS_STOP){in_key->status = EVENT_FLAG_STATUS_ING;printf("%s status change: stop -> ing\n",in_key->event_name);return;}elseprintf("error event_flag for %s\n",in_key->event_name);printf("unknown event\n");return;
}void save_cmd_u8(i_dwin_cmd * cmd)
{uint8_t * p = cmd->cmd_u8;*(p+DWIN_CMD_POINT_HEAD1) = cmd->head[0];*(p+DWIN_CMD_POINT_HEAD2 ) = cmd->head[1];*(p+DWIN_CMD_POINT_LEN ) = cmd->len;*(p+DWIN_CMD_POINT_WR ) = cmd->wr;*(p+DWIN_CMD_POINT_ADDR1 ) = cmd->addr[0];*(p+DWIN_CMD_POINT_ADDR2 ) = cmd->addr[1];return;// *(p+2)
}char * uint8_t2char_list(uint8_t * p_dwin_u8_value,int len)
{char * p_dwin_char_value = dwin_cmd_char_value;for(int i=0; i<len; i++){strcat(p_dwin_char_value,uint8_t2char(*p_dwin_u8_value));p_dwin_u8_value++;p_dwin_char_value = p_dwin_char_value + 2;}*(p_dwin_char_value +1 )= '\0';return dwin_cmd_char_value;
}int dwin_event_cmp(uint8_t * value ,uint8_t *match)
{uint8_t * p_value = value;uint8_t * p_match = match;for(int i=0;i<4;i++){if(*p_value == *p_match){p_value++;p_match++;}else{printf("dont match\n");return 0;}printf(" matched \n");return 1;}return 0;
}/*func1: uint8_t change to char0x5A A5 04 83 10 00 01"5AA50483100001"func2: judge uint8_tif(str[X] == 0x5A)
*/
char * dwin_cmd_uint8_t2char(i_dwin_cmd cmd)
{print_dwin_cmd(cmd);// case1: malloc// int cmd_len = cmd.len;// int malloc_len = (cmd_len + 3) *2 +1;// printf("malloc %d\n",malloc_len);// dwin_cmd_char_temp = (char*)malloc( malloc_len);// case2: char arraymemset(dwin_cmd_char_temp,0x00,DWIN_CMD_CHAR_MAX);// point to char value posdwin_cmd_char_value = dwin_cmd_char_temp + 2*DWIN_CMD_POINT_VALUE;// 1. head strcat(dwin_cmd_char_temp,"5AA5");// printf("dwin_cmd_char_temp = %s\n",dwin_cmd_char_temp);// 2. lenuint8_t2char(cmd.len);strcat(dwin_cmd_char_temp,temp_c);// 3. wruint8_t2char(cmd.wr);strcat(dwin_cmd_char_temp,temp_c);// 4. addruint8_t2char(cmd.addr[0]);strcat(dwin_cmd_char_temp,temp_c);uint8_t2char(cmd.addr[1]);strcat(dwin_cmd_char_temp,temp_c);// printf("dwin_cmd_char_temp = %s\n",dwin_cmd_char_temp);// 5. addruint8_t2char_list(cmd.value,cmd.len - 3);   // 3 due to addr(2) + wr(1)printf("dwin_cmd_char_temp = %s\n",dwin_cmd_char_temp);return dwin_cmd_char_temp;
}/*func1: uint8_t change to char0x5A A5 04 83 10 00 01"5AA50483100001"func2: judge uint8_tif(str[X] == 0x5A)
*/
void uart_recv_value_cut(uint8_t * recv_all)
{// dwin_cmd_sizeof = sizeof(recv_all);int dwin_cmd_sizeof = strlen(recv_all);//ERROR may: my_strlenprintf("dwin_cmd_sizeof = %d\n",dwin_cmd_sizeof);//p = (int*)malloc(sizeof(int) * n);char * dwin_cmd_charlist;dwin_cmd_charlist = (char*)malloc( dwin_cmd_sizeof *2 +1);memset(dwin_cmd_charlist,0x00,dwin_cmd_sizeof);for(int i = 0;i<dwin_cmd_sizeof;i++){printf("i = [ %d ]\n",i);uint8_t temp_uc = recv_all[i];char temp_c[3] = "00";//ERROR, may set 2 if(temp_uc != 0x00)sprintf(temp_c, "%02X", temp_uc);else{printf("uc is 0x00\n");// temp_c[0] = '0';// temp_c[1] = '0';// temp_c = "00";}printf("temp_c = [ %s ]\n",temp_c);strcat(dwin_cmd_charlist,temp_c);//strcat(dwin_cmd_charlist,'\0');}printf("dwin_cmd_charlist %s \n",dwin_cmd_charlist);printf("end display");// if(recv_all[0]==DWIN_CMD_HEAD_1 && recv_all[1]==DWIN_CMD_HEAD_2)// {//     printf("this is dwin cmd %s\n",(char)recv_all);//     dwin_cmd_len = recv_all[2];//     dwin_cmd_wr = recv_all[3];//     dwin_cmd_addr[0] = recv_all[4];//     dwin_cmd_addr[1] = recv_all[5];//     dwin_cmd_data_len = recv_all[6];//     dwin_cmd_data_value = recv_all+7;//     printf("dwin_cmd_len %02X\n",dwin_cmd_len);//     printf("dwin_cmd_wr %02X\n",dwin_cmd_wr);//     printf("dwin_cmd_addr[0] %02X\n",dwin_cmd_addr[0]);//     printf("dwin_cmd_addr[1] %02X\n",dwin_cmd_addr[1]);//     printf("dwin_cmd_data_len %02X\n",dwin_cmd_data_len);//     sprintf(dwin_cmd_charlist, "%02X", dwin_cmd_len);//     printf("dwin_cmd_charlist %s\n",dwin_cmd_charlist);//     // printf(" %x\n",);//     // printf(" %x\n",);//     // if(recv_all[0]==0x5A)// }free(dwin_cmd_charlist);printf("end func");return ;
}void copy_u8_2_u8(uint8_t * u8_raw)
{memset(dwin_cmd_u8_temp,0x00,DWIN_CMD_CHAR_MAX);uint8_t * p_raw = u8_raw;uint8_t * p_end = dwin_cmd_u8_temp;int len = *(u8_raw + DWIN_CMD_POINT_LEN) + 3;for(int i=0;i<len;i++){*(p_end +i) = *(p_raw +i);// p_raw++;// p_end++;}return;
}//---------------------------------------------------------
//  FOR char: "5AA5.."
//
//
//
//---------------------------------------------------------// ADD FOR LINUX DIWN
int judge_dwin_cmd(uint8_t **in_u8_raw)
{// 1. judge cmd is dwin headprintf("judge_dwin_cmd=[%s]\n",*in_u8_raw);uint8_t *cmd_temp = *in_u8_raw;if(*(cmd_temp+DWIN_CMD_POINT_HEAD1) == DWIN_CMD_HEAD_1 && *(cmd_temp+DWIN_CMD_POINT_HEAD2)== DWIN_CMD_HEAD_2){printf("this is dwin cmd\n");return 1;}elsereturn 0;
}int get_len(uint8_t *cmd_u8)
{int len = *(cmd_u8  + 2);// printf("len = %d\n",len);return len;
}// cmd save with char
void c_dwin_cmd_clear(c_dwin_cmd * cmd)
{printf("clear cmd value\n");strncpy(cmd->head,"5AA5",4);strncpy(cmd->len,"00",2);strncpy(cmd->wr,"83",2);strncpy(cmd->addr,"0000",4);cmd->value = NULL;cmd->cmd_char = NULL;// memset(cmd->cmd_u8,0x00,DWIN_CMD_LEN_U8_MAX);// cmd->cmd_char = NULL;return;
}void print_uint8(uint8_t * in)
{printf("----temp: len[%d]\t[",*(in+2));for(int i =0;i< 8;i++){printf("%02X",*(in+i));}printf("]\n");
}void c_print_cmd(c_dwin_cmd *cmd)
{printf("print cmd value\n");printf("head | len | wr | addr | value  | all\n");printf("%s | %s  | %s | %s | %s | %s\n",cmd->head,cmd->len,cmd->wr,cmd->addr,cmd->value,cmd->cmd_char);return;}void c_dwin_cmd_analysis(char * in,c_dwin_cmd *cmd)
{// 1. judge cmd is dwin headchar *cmd_temp = in;printf("this is dwin cmd\n");c_dwin_cmd_clear(cmd);// 1. save cmd msgprintf("save cmd value\n");// printf("len=%s\n",(in+C_CMD_POINT_LEN));strncpy(cmd->len,in+C_CMD_POINT_LEN,2);strncpy(cmd->wr,in+C_CMD_POINT_WR,2);strncpy(cmd->addr,in+C_CMD_POINT_ADDR,4);// strncpy(cmd->value,in+C_CMD_POINT_LEN,);cmd->value=(in+C_CMD_POINT_VALUE);cmd->cmd_char=in;c_print_cmd(cmd);// 2. event judgec_judge_dwin_event(cmd);return;
}void c_searc_spec_event(c_dwin_cmd * cmd)
{printf("search spec event\n");dwin_event_key_spec * temp_value ;temp_value = &event_key_spec[0];// printf("spec event key = %s\n",temp_value->key);for(int i = 0; strcmp(temp_value->key,EVENT_KEY_SPEC_VALUE) != 0 && i<EVENT_KEY_SPEC_NUM_MAX ; i++){// printf("spec event key = %s\n",temp_value->key);// printf("spec event value = %s\n",cmd->cmd_char + DWIN_CMD_CHAR_ADDR_VALUE);if(strstr(cmd->cmd_char + DWIN_CMD_CHAR_ADDR_VALUE, temp_value->key ) != NULL){temp_value->func();printf("find spec event, value = %s, name = %s\n",temp_value->key,temp_value->event_name);return;}temp_value = &event_key_spec[i];}printf("unfind spec key\n");return;
}dwin_event_flag c_judge_dwin_event(c_dwin_cmd * cmd)
{printf("\nenter c_judge_dwin_event\n");// print_dwin_cmd(*cmd);printf("cmd str = [%s]\n",(cmd->cmd_char));// 1. judge okif(strcmp((cmd->cmd_char),DWIN_CMD_OK) == 0){printf("recv ok\n");// get ok, stop send// status_uart_send = false;return EVENT_FLAG_OK;} // 2. judge eventprintf("\nenter c_judge_dwin_event\n");dwin_event_key * temp_value ;temp_value = &event_key_list[0];for(int i = 0; temp_value->flag != EVENT_FLAG_UNKOWN ; i++){// +8 choose add// printf("search=%s,key=%s\n",*(cmd->cmd_char) + DWIN_CMD_CHAR_ADDR_VALUE ,temp_value.key);// can't use strcmp, due to uart data may have double 0x00if(strstr((cmd->addr), temp_value->key) != NULL){printf("searched key= %s, value=%d, name=%s\n",temp_value->key,temp_value->flag,temp_value->flag_name);if(strstr((cmd->value) , "010001") != NULL){printf("status set open\n");if(temp_value->open != NULL ){temp_value->open();temp_value->status = EVENT_FLAG_STATUS_ING;printf("%s status change: stop -> ing\n",temp_value->event_name);}}if(strstr((cmd->cmd_char) , "010000") != NULL){printf("status set close\n");if(temp_value->close != NULL ){temp_value->close();temp_value->status = EVENT_FLAG_STATUS_STOP;printf("%s status change: ing -> stop\n",temp_value->event_name);}}// change_dwin_status(temp_value->flag);// change_dwin_status_key(temp_value);printf("has find match key, event = [%s]\n\n",temp_value->event_name);return temp_value->flag;}temp_value = &event_key_list[i];}printf("hasn't find match key\n");c_searc_spec_event(cmd);return EVENT_FLAG_UNKOWN;
}

#include "stddef.h"
#include "string.h"
#include "stdio.h"
#include "stdlib.h"
#include "stdbool.h"
#include "stdint.h"#define TRUE 1
#define FALSE 0
#define uint8_t u_int8_t
#define bool _Booltypedef enum{EVENT_FLAG_OK = 0X0,EVENT_FLAG_AUDIO_RECORD = 0x3,EVENT_FLAG_AUDIO_PLAY = 0x4,EVENT_FLAG_CAM_SCAN = 0x5,EVENT_FLAG_NFC_SCAN = 0x6,EVENT_FLAG_BOOK_SEARCH = 0x10,EVENT_FLAG_BOOK_INPUT = 0x11,EVENT_FLAG_UNKOWN = -1,
}dwin_event_flag;typedef enum{// EVENT_FLAG_STATUS_START = 0x0,EVENT_FLAG_STATUS_ING = TRUE,EVENT_FLAG_STATUS_STOP = FALSE,EVENT_FLAG_STATUS_ERROR = -1,
}dwin_event_flag_status;typedef enum{EVENT_TYPE_DWIN_SEND = 0x0,  // uart readEVENT_FLAG_DWIN_RECV = 0x1,  // uart write
}dwin_event_type;#define DWIN_CMD_LEN_U8_MAX 259typedef struct
{uint8_t head[2];uint8_t len;uint8_t wr;uint8_t addr[2];uint8_t * value;// uint8_t cmd_u8[DWIN_CMD_LEN_U8_MAX];uint8_t * cmd_u8;char * cmd_char;
}i_dwin_cmd;void uart_recv_value_cut(uint8_t * recv_all);
// dwin_event_flag uart_judge_dwin_event(char *str);
dwin_event_flag uart_judge_dwin_event(i_dwin_cmd * cmd);void print_dwin_cmd(i_dwin_cmd cmd);char * dwin_cmd_uint8_t2char(i_dwin_cmd cmd);char * uint8_t2char(uint8_t value);char * uint8_t2char_list(uint8_t * p_dwin_u8_value,int len);void change_dwin_status(dwin_event_flag event_flag);// UART recv/send judge dwin_event
#define EVENT_KEY_NUM_MAX 10
// #define EVENT_KEY_MAX -1// function
void func_open_record();
void func_close_record();
void func_open_cam();
void func_close_cam();
void func_open_nfc();
void func_close_nfc();#define EVENT_NAME_MAX 11
#define EVENT_FLAG_NAME_MAX 30
#define EVENT_KEY_VALUE_MAX 11   //"3000 0001"  is 8typedef struct
{dwin_event_flag flag;char event_name[EVENT_NAME_MAX];dwin_event_flag_status status;char key[EVENT_KEY_VALUE_MAX];   // key[0,3] addr key[4,7] valuechar flag_name[EVENT_FLAG_NAME_MAX];void (*open)();void (*close)();
}dwin_event_key;dwin_event_key event_key_list[EVENT_KEY_NUM_MAX];
// {//     // {//     //     event_flag, event_name,
//     //     event_status,
//     //     event_addr, event_flag_name,
//     //     event_ops1, enent_ops1
//     // },//     {//         EVENT_FLAG_AUDIO_RECORD, "record",
//         EVENT_FLAG_STATUS_STOP,
//         "1503", "EVENT_FLAG_AUDIO_RECORD",
//         func_open_record,   func_close_record
//     },//     {//         EVENT_FLAG_CAM_SCAN,    "cam",
//         EVENT_FLAG_STATUS_STOP,
//         "1504", "EVENT_FLAG_CAM_SCAN",
//         func_open_cam,      func_close_cam
//     },//     {//         EVENT_FLAG_NFC_SCAN,    "nfc",
//         EVENT_FLAG_STATUS_STOP,
//         "1505", "EVENT_FLAG_NFC_SCAN",
//         func_open_nfc,      func_close_nfc
//     },//     {//         EVENT_FLAG_UNKOWN,  "unknow",
//         EVENT_FLAG_STATUS_STOP,
//         "0000" , "EVENT_FLAG_UNKOWN"
//     }
// };typedef struct
{char key[EVENT_KEY_VALUE_MAX];   // key[0,3] addr key[4,7] valuechar event_name[EVENT_FLAG_NAME_MAX];void (*func)();
}dwin_event_key_spec;void func_search();
void func_spec_end();void searc_spec_event();#define EVENT_KEY_SPEC_VALUE "over"
#define EVENT_KEY_SPEC_NUM_MAX 20
dwin_event_key_spec event_key_spec[EVENT_KEY_SPEC_NUM_MAX];
// {//     // special event, just one ops
//     // {//     //     event_key, event_name,
//     //     event_ops
//     // },//     {//         "1502010012",  "search",
//         func_search
//     },
//     // ...//     {EVENT_KEY_SPEC_VALUE,  "end",
//         func_spec_end
//     }
// };void change_dwin_status_key(dwin_event_key *in_key);void change_cmd_send_status(dwin_event_flag temp_event_flag);// -------------------- basic func  --------------------void copy_u8_2_u8(uint8_t * u8_raw);void u8_to_char(uint8_t * in_u8, char ** out);uint8_t * u8_to_u8(uint8_t * in_u8);// -------------------- dwin func --------------------
void dwin_cmd_init_send();
void init_dwin_status();
void i_dwin_cmd_clear(i_dwin_cmd * cmd);// get u8 from example
void uart_dwin_cmd_analysis(uint8_t *str);void copy_u8_to_cmdu8(i_dwin_cmd *cmd, uint8_t * u8);//int my_strlen(uint8_t *str);// int search_str_end(uint8_t *str_z, int count);
// int my_strlen(uint8_t *str);
// int judge_char(uint8_t * str);#define DWIN_CMD_CHAR_ADDR_VALUE 8
#define DWIN_CMD_CHAR_VALUE_VALUE 12
#define DWIN_CMD_CHAR_MAX 513
#define DWIN_CMD_U8_MAX 256// add for char
#define C_CMD_POINT_HEAD 0
#define C_CMD_POINT_LEN 4
#define C_CMD_POINT_WR 6
#define C_CMD_POINT_ADDR 8
#define C_CMD_POINT_VALUE 12typedef struct
{char head[5];char len[3];char wr[3];char addr[5];char * value;char * cmd_char;
}c_dwin_cmd;int judge_dwin_cmd(uint8_t ** in_u8_raw);
int get_len(uint8_t *cmd_u8);void c_dwin_cmd_analysis(char * in,c_dwin_cmd *cmd);void c_dwin_cmd_clear(c_dwin_cmd * cmd);
dwin_event_flag c_judge_dwin_event(c_dwin_cmd * cmd);
void c_print_cmd(c_dwin_cmd *cmd);
void print_uint8(uint8_t * in);

#CC = aarch64-poky-linux-gcc -mcpu=cortex-a55 -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Werror=format-security --sysroot=/opt/poky/3.1.5/sysroots/aarch64-poky-linuxTARGET=t2_uartOBJS=t2_uart.oCFLAGS+=-c -Wall -g
LDFLAGS+= -lpthreadOPENSSL_DIR    = /home/share/forlinx/OKT507/pro/feiling_dwin/v3_event
INC_DIR =  dwin.h
SRC_DIR =  dwin.cDWIN = dwin# $(TARGET):$(OBJS)
#   $(CC) $^ $(LDFLAGS) -o $@  # %.o:%.c
#   $(CC) $^ $(CFLAGS) -o $@dwin_test:uart_example.c  $(SRC_DIR) $(INC_DIR)$(CC) $^ -o dwin_test# dwin.o:
#   $(CC)  $^ -o dwin.o# $CC t2_uart.c -o t2_uartclean:$(RM) *.o $(TARGET) -rinstall:install -m 0755 $(TARGET) ./

配置环境

【命令】export CC=aarch64-linux-gnu-gcc

编译

在对应目录直接输入make，会调用Makefile进行编译，最终生成dwin_test文件
【命令】make

传输

通过sftp将文件传输给设备OKT507

直接拖到右侧的远程站点即可。

运行

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【OKT507】迪文屏事件

前言

代码

配置环境

编译

传输

运行

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