Ubuntu下搭建TQ2440的程序下载dnw环境

来源：互联网发布：js获取div属性编辑：程序博客网时间：2024/05/22 01:28
首先要安装libusb-dev这个库,
sudo apt-get install libusb-dev
/* dnw2 linux main file. This depends on libusb.** Author:         Fox <hulifox008@163.com>* License:        GPL**/#include <stdio.h>#include <usb.h>#include <errno.h>#include <sys/stat.h>#include <fcntl.h>#include <unistd.h>#define                 QQ2440_SECBULK_IDVENDOR                0x5345#define                QQ2440_SECBULK_IDPRODUCT        0x1234struct usb_dev_handle * open_port(){        struct usb_bus *busses, *bus;        usb_init();        usb_find_busses();        usb_find_devices();        busses = usb_get_busses();        for(bus=busses;bus;bus=bus->next)        {                 struct usb_device *dev;                for(dev=bus->devices;dev;dev=dev->next)                {                printf("idVendor:0x%x\t,ipProduct:0x%x\n",dev->descriptor.idVendor,dev->descriptor.idProduct);                        if( QQ2440_SECBULK_IDVENDOR==dev->descriptor.idVendor                        &&  QQ2440_SECBULK_IDPRODUCT==dev->descriptor.idProduct)                        {                                printf("Target usb device found!\n");                                struct usb_dev_handle *hdev = usb_open(dev);                                if(!hdev)                                 {                                        perror("Cannot open device");                                        }                                else                                {                                        if(0!=usb_claim_interface(hdev, 0))                                        {                                                perror("Cannot claim interface");                                                usb_close(hdev);                                                hdev = NULL;                                        }                                }                                return hdev;                        }                }        }                printf("Target usb device not found!\n");        return NULL;}void usage(){        printf("Usage: dnw2 <file>\n\n");}unsigned char* prepare_write_buf(char *filename, unsigned int *len){        unsigned char *write_buf = NULL;        struct stat fs;        int fd = open(filename, O_RDONLY);        if(-1==fd)        {                perror("Cannot open file");                return NULL;        }        if(-1==fstat(fd, &fs))        {                perror("Cannot get file size");                goto error;        }        write_buf = (unsigned char*)malloc(fs.st_size+10);        if(NULL==write_buf)        {                perror("malloc failed");                goto error;        }        if(fs.st_size != read(fd, write_buf+8, fs.st_size))        {                perror("Reading file failed");                goto error;        }        printf("Filename : %s\n", filename);        printf("Filesize : %d bytes\n", fs.st_size);        *((u_int32_t*)write_buf) = 0x30000000;                //download address        *((u_int32_t*)write_buf+1) = fs.st_size + 10;        //download size;        *len = fs.st_size + 10;        return write_buf;error:        if(fd!=-1) close(fd);        if(NULL!=write_buf) free(write_buf);        fs.st_size = 0;        return NULL;        }int main(int argc, char *argv[]){        if(2!=argc)        {                usage();                return 1;        }        struct usb_dev_handle *hdev = open_port();        if(!hdev)        {                return 1;        }        unsigned int len = 0;        unsigned char* write_buf = prepare_write_buf(argv[1], &len);        if(NULL==write_buf) return 1;        unsigned int remain = len;        unsigned int towrite;        printf("Writing data ...\n");        while(remain)        {                towrite = remain>512 ? 512 : remain;                 if(towrite != usb_bulk_write(hdev, 0x03, write_buf+(len-remain), towrite, 3000))                {                        perror("usb_bulk_write failed");                        break;                }                remain-=towrite;                printf("\r%d%\t %d bytes     ", (len-remain)*100/len, len-remain);                fflush(stdout);        }        if(0==remain) printf("Done!\n");        return 0;}
把它保存为文件如：dnw2.c
接着编译: gcc dnw2.c -o dnw2 -lusb
编译完得到的dnw2就是usb下载的PC端了。
0 0