利用 Imagebuilder 可以生成自己所需要的固件, 告别和别人伸手乞讨固件的磨练

pass3389 · 发表于 2012-12-20 04:50

泥马，真给力，我要顶!

li809 · 发表于 2012-12-21 21:34

我要顶!

800800 · 发表于 2012-12-22 00:02

厉害,顶,顶上呀!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

submars · 发表于 2012-12-24 13:52

很难得看到秋水兄发的文章啊！必须顶！！！

qiushui_007 · 发表于 2013-1-18 16:08

submars 发表于 2012-12-24 13:52
很难得看到秋水兄发的文章啊！必须顶！！！

哎, 代码囧图中, 来论坛的时间少了....

ws334824210 · 发表于 2013-1-18 17:26

感谢分享

qiushui_007 · 发表于 2013-1-19 16:17

刷不死的wr703N的u-boot, 是用uip 实现HTTP协议的,  大体看了下代码, 稍微总结如下:

//--- include/config.h, 生成的内容如下
#define CONFIG_AR7240 1
#define CONFIG_MACH_HORNET 1
#define CONFIG_HORNET_1_1_WAR 1
#define NEW_DDR_TAP_CAL 1
#define FLASH_SIZE 4

/* Automatically generated - do not edit */
#include <configs/ap121.h>
#define CONFIG_PID_WR70301  1
#define GPIO_SYS_LED_BIT 27
#define GPIO_SYS_LED_ON 0
#define GPIO_RST_BUTTON_BIT 11

---- include/configs/ap121.h, 相关的配置数据都在此文件!!!!
//#define FLASH_SIZE 4

#if (FLASH_SIZE == 8)
#define CFG_MAX_FLASH_BANKS    1    /* max number of memory banks */
#define CFG_MAX_FLASH_SECT    128    /* max number of sectors on one chip */
#define CFG_FLASH_SECTOR_SIZE (64*1024)
#define CFG_FLASH_SIZE       0x00800000 /* Total flash size */

#elif (FLASH_SIZE == 4)
#define CFG_MAX_FLASH_BANKS    1    /* max number of memory banks */
#define CFG_MAX_FLASH_SECT    64    /* max number of sectors on one chip */
#define CFG_FLASH_SECTOR_SIZE (64*1024)
#define CFG_FLASH_SIZE       0x00400000 /* Total flash size */

#else
/* For 2 MB flash */
# error "not support 2MB flash now"
#define CFG_MAX_FLASH_BANKS    1    /* max number of memory banks */
#define CFG_MAX_FLASH_SECT    32    /* max number of sectors on one chip */
#define CFG_FLASH_SECTOR_SIZE (64*1024)
#define CFG_FLASH_SIZE       0x00200000 /* Total flash size */
#endif

#define CONFIG_IPADDR 192.168.1.1
#define CONFIG_SERVERIP 192.168.1.2

----- net/uip-0.9/fsdata.c, httpd.c, fsdata.c,
#升级时的提示
Flashing...
The system is now trying to flash. If there is a problem, the LEDs will start to blink.
After a successful update the box will reboot

static const char data_index_html[] =
"HTTP/1.0 200 OKn"
"Server: uIP/0.9 (http://dunkels.com/adam/uip/)n"
"Content-type: text/htmln"
"n"
"<html>n"
"t<head>n"
"tt<title>n"
"tttFailsafe UIn"
"tt</title>n"
"t</head>n"
"t<body>n"
"tt<h1>Failsafe UI</h1>n"
"tt<form method="post" enctype="multipart/form-data">n"
"ttt<input type=file name=firmware>n"
"ttt<input type=submit>n"
"tt</form>n"
"t</body>n"
"</html>n";

const struct fsdata_file file_index_html[] =
{{file_404_html, "/index.html", data_index_html, sizeof(data_index_html)}};

-- httpd.c
void httpd_init(void)
{
fs_init();
uip_listen(HTONS(80));
}
upload_data = httpd_upload_data = (unsigned char *)do_http_tmp_address();
printf("received data will be stored at %pn", upload_data);
next = (unsigned char *)strstr((char *)boundary_start, "name="firmware";");

void httpd_appcall(void)
{
//第一包
if(hs->state == HTTP_FIRMWARE) {
      next = (unsigned char *)strstr((char *)boundary_start, "name="firmware";");
      if(!next)
      {
         uip_close();
         return;
      }
      next = (unsigned char *)strstr((char *)next, eol2); //rnrn
      if(!next)
      {
         printf("could not find start of datan");
         uip_close();
         return;
      }
      next += 4;  //此为首包的有效数据
      hs->script = 0;
      hs->state = HTTP_FIRMWARE;
      hs->upload = uip_len - (next - start); //有效数据的长度
      hs->upload_total = len - (int)(next - boundary_start);
      hs->upload_total -= (strlen(boundary) + 6);
      //printf("storing %d bytes at %pn", (int)hs->upload, upload_data);
      for(i = 0; i < hs->upload; i++)
         upload_data = next; //有效数据赋值
      upload_data += (int)hs->upload;
      printf("%d / %dn", (int)hs->upload, hs->upload_total);
      uip_slen = 0;
      return;
}

//后续包
if(hs->state == HTTP_FIRMWARE) {
      if(uip_newdata()) {
         int i;
         hs->count = 0;
         uip_appdata[uip_len] = '';
         hs->upload += uip_len;
         //printf("storing %d bytes at %pn", uip_len, upload_data);
         printf("%d / %dn", (int)hs->upload, hs->upload_total);
         for(i = 0; i < uip_len; i++)
            upload_data = uip_appdata;
         upload_data += uip_len;
         uip_slen = 0;
         if(hs->upload >= hs->upload_total)
         {
            upload_running = 1;
            NetBootFileXferSize = hs->upload_total;
            fs_open(file_flash_html.name, &fsfile);
            hs->script = 0;
            hs->state = HTTP_FILE;
            hs->dataptr = fsfile.data;
            hs->count = fsfile.len;
         }
      }
}
}

sqmsh · 发表于 2013-1-20 03:22

这个教程好..........

pass3389 · 发表于 2013-1-20 04:31

写的不错，谢谢总结。

qiushui_007 · 发表于 2013-1-21 16:15

有想修改u-boot 代码的大神, 一起学习下

qiushui_007 · 发表于 2013-2-17 08:52

本帖最后由 qiushui_007 于 2013-2-17 08:58 编辑

如果想更快捷的调试代码, 可以利用openwrt的交叉编译

1. shell中如下命令
export STAGING_DIR="~/OpenWrt-SDK-ar71xx-for-linux-i486-gcc-4.6-linaro_uClibc-0.9.33.2/staging_dir"

2. hello.c, 代码如下:
/*------------------------------------------------------------------------------------------
openwrt之交叉编译
~/OpenWrt-SDK-ar71xx-for-linux-i486-gcc-4.6-linaro_uClibc-0.9.33.2/staging_dir/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/mips-openwrt-linux-gcc hello.c -o hello

如果直接在虚拟机上执行, 则错误如下
xxg@xxg-desktop:~/1-wire/helloword$ ./hello
bash: ./hello: cannot execute binary file

路由器上执行
chmod +x hello
./hello
-----------------------------------------------------------------------------------------*/

#include <stdio.h>

int main(int agrc, char *argv)
{
      printf ("oepnmips-openwrt-linux-gcc hello.c -o hello\n");
      return 1;
}

3. Makefile, 内容如下
OPENWRT = 1

ifeq ($(OPENWRT), 1)
CC = ~/OpenWrt-SDK-ar71xx-for-linux-i486-gcc-4.6-linaro_uClibc-0.9.33.2/staging_dir/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/mips-openwrt-linux-gcc
CFLAGS += -L/home/xxg/OpenWrt-SDK-ar71xx-for-linux-i486-gcc-4.6-linaro_uClibc-0.9.33.2/staging_dir/target-mips_r2_uClibc-0.9.33.2/usr/lib

else
CC = gcc
endif

CFLAGS += -Wall -g

#可执行文件名和相关的obj文件
APP_BINARY = hello
OBJ = hello.o

all: APP_FILE

%.o: %.c
      $(CC) $(CFLAGS) -c -o $@ $<

APP_FILE: $(OBJ)
      $(CC) $(CFLAGS) $(OBJ) -o $(APP_BINARY)       $(LFLAGS)

clean:
      @echo "cleanning project"
      $(RM) *.a *.o *~ *.so *.lo $(APP_BINARY)
      @echo "clean completed"

.PHONY: clean

执行make则编译出 hello 可执行文件, 可以用winscp拷贝到路由器上.

4. 假设拷贝到路由器的 xutest目录下,
root@OpenWrt:/xutest# chmod +x hello
root@OpenWrt:/xutest# ./hello
mips-openwrt-linux-gcc hello.c -o hello
root@OpenWrt:/xutest#

shane · 发表于 2013-2-17 13:44

make

zhe_jiang · 发表于 2013-3-26 17:47

ding .谢谢！

cj8510 · 发表于 2013-4-2 22:50

固件不是一般人能做的把！

luocaomin · 发表于 2013-6-17 17:17

标记下，学习。。

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