本帖最后由 0522 于 2012-3-21 23:04 编辑 " Q* V% E; u* c8 C) x8 k
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修改的代码早有了。到今天不会编译。
& x0 C9 I0 k4 k; y2 l! x需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
7 G& v, F9 z% z, F3 y - #include <malloc.h>
+ M2 p+ C/ a6 U - #include <sys/types.h>6 {3 |" N9 l# H4 s6 u! Q
- #include <sys/stat.h>
; v1 h9 O A& p% h0 U - #include <sys/ioctl.h>
6 W, ]& P+ F4 Z X D - #include <stdio.h>5 u5 n3 S6 V& ]
- #include <string.h>. u) ^! A: W4 U! z H7 D
3 k" U; m8 I! Z4 \! b# A1 x- typedef struct {7 m6 i% W/ T I* v
- unsigned int e2prom_cmd_sub_addr;
# I1 T/ n" Q+ w3 u9 ] - unsigned int sub_addr_count;0 U o; U* _! j; f; H' G' S" Y
- unsigned char* e2prom_cmd_data;
" Z+ w& s& D2 E2 \' w5 t- W D# { - unsigned int data_count;' o, p- a, g! |; ?9 G
- } e2prom_s_cmd;
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# V! }& G: T* Y$ X# C- #define E2PROM_CMD_READ 1
2 s8 |! a! _2 A9 r8 d( i | - #define E2PROM_CMD_WRITE 2
! H/ d( U" r8 M6 l0 K8 k( ~ - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid). n2 M4 L% T$ C: J) x
- {
, p" X% @; T( N z# J - int fd, ret;3 `$ E' U. G. Q" t
- e2prom_s_cmd arg;# g, a% s7 A- j% b. Q8 a$ B
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
2 [3 c8 x5 u% f0 s* o - if (fd < 0) {
& O+ _- q2 h: {- c: v - printf("Device %s open error.\n", E2PROM_DEVICE);
) A' q- h* g0 \' q! W/ O) e- a$ O1 W - return -1;; N1 p/ I2 M2 u7 ?6 n- u
- }( H; s! r9 l! ^
- arg.sub_addr_count = 2;; {" M3 C( L4 ^; R# C( q
- arg.data_count = 0x18;
3 S4 q% |0 v6 J - arg.e2prom_cmd_sub_addr = 0x290;
! ]1 U3 @4 ]8 u* r - arg.e2prom_cmd_data = buf;1 O% j. \: p) w1 ]: _% J
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);5 S' L# A; d% O, c: ?
- if (ret != 0) {0 _1 @& i5 p; t' F7 r3 ~# x1 J
- printf("Device %s read error.\n", E2PROM_DEVICE);
. S+ K! z# J! Q - return -1;9 V6 R6 n$ i5 N/ ]
- }1 V2 ^' K$ ]7 J1 l: I8 I ^( | i5 V" M
- memcpy(mac, buf, 6);. _ r% P6 e; ~! ^2 |+ a
- memcpy(stbid, &buf[6], 18);0 q: p" _& E/ @# [$ }7 ?
- stbid[18] = '\0';7 s& _! K8 G" P$ g* o
/ r4 n0 B$ Z8 A# U$ K$ j- [- return 0;2 \* Q, D. H9 e: r m
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
& Q8 _( p* d& I - {
% G3 t; a& I' E, r$ i; E - int fd, ret;$ \7 ]& |) A I4 K. n6 `
- e2prom_s_cmd arg;( V, I4 J) p$ F6 V0 }% Y1 H
- unsigned char buf[0x18];
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- memcpy(buf, mac, 6);" ]0 \4 A0 ~% A7 n) H! Z6 M
- memcpy(&buf[6], stbid, 18);) \2 w: e1 q( d4 n; Z# F, H. u8 c
- fd = open(E2PROM_DEVICE, O_RDWR);. A" p0 j( U4 Q# R8 j. W. F
- if (fd < 0) {
; E) N6 L8 y" ?" K) u, \ - printf("Device %s open error.\n", E2PROM_DEVICE);
' Y# w# [* ?# H/ _ - return -1;2 R3 r; w# l$ l, E& e7 w, X3 ^) x
- }
4 k5 v! m2 L8 f5 _* w - arg.sub_addr_count = 2;
* H. l; V! b ]3 a - arg.data_count = 0x18;
& c- q R5 k# }9 Y1 u - arg.e2prom_cmd_sub_addr = 0x290;3 E) T: w% Y% j) }2 ` `+ u& F
- arg.e2prom_cmd_data = buf;
) f% p7 } N! L$ ~* S' g - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
+ v. t& }# w$ q/ j; D& y( N - if (ret != 0) {
/ N+ V4 d& N' F( u$ l+ s% r) X - printf("Device %s write error.\n", E2PROM_DEVICE);4 e! O8 B! ?) e* n6 p0 p
- return -1;
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- return 0;
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- int main()/ B/ W0 m2 K( `% o1 x" C
- {
: u# F6 {" P+ |4 Y! Q8 y& i4 b7 h - char c;1 j8 b2 W% v: b0 }! F/ Z
- int i, macs[6];* W: b+ `, V2 `9 @6 Z
- unsigned char mac[6];
; g/ P3 B+ k/ r+ W) M/ M - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)9 H G) p6 Z* ^6 Y
- return 1;' P. y9 f/ q4 i
- # k# {$ h; S* E
- printf("Current parameters: \n"); ^1 d. D K5 X( q, c# M
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
, C8 U e- ?( k6 H% ^: j2 s5 z - printf(" STBID: %s\n", stbid);1 r0 j7 c) x! c/ k& q# u& b5 w: a# I' ~
-
1 g/ `# ]: J b- [2 g% s - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
' l+ S- ~, S/ d# y - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
3 a7 R7 l9 B5 B$ c( C - printf("Input MAC error\n");
) ]9 v, k8 U. p1 D8 Q( _ - return 1;
# g! \ r- Z! n# N8 z - }
' U" x( w' W& \- |" h - for (i=0; i<6; i++)mac[i] = macs[i];: [; o3 h- e5 u D% _$ q( P
- printf("\nPlease input new STBID: ");) n, f! G- }4 M0 F7 D! }
- scanf("%s", stbid);/ t" a4 T' l/ w0 h% s) [
- if (strlen(stbid) != 18) {
8 Y, X" E" ]. R' J/ b( W4 o - printf("Invalid stbid\n");
( d0 y1 Y; B2 W) v - return 1;
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- printf("\nNew parameters: \n");- x0 {" k& a2 N
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);8 K# W" W i# Q; i0 E7 C
- printf(" STBID: %s\n", stbid);! Y* G( l( U; h2 b
' Q! }. q; I7 g2 W& a- printf("\nDo you want to change paramemters? (y/N) ");
9 S! A) u8 O2 [+ ?/ f - for (;;) {' p% V9 v# f! x2 L7 K8 U+ ` Z
- c = getchar();9 Q% t) e/ _1 i9 X# s) i4 P( z
- if (c == 'y' || c == 'Y')9 ?# o0 ?$ J; ^# p9 D! ]9 J& v
- break;! c* A. q; C* v8 P
- if (c == 'n' || c == 'N') {- [/ O7 e0 _* l4 K) U
- printf("\nAborted.\n");
) s* n$ L0 |2 y, p, H' a+ j7 }+ U% B - return 1;7 F! e& N8 ]4 a& ?* I: r
- }
' K4 _1 [* A/ ]" o* ~+ l - }
4 s% u+ g+ A8 b! j7 P: f - if (writeparam(mac, stbid) == 0) $ N/ l6 X8 U/ d1 I$ q* V" s
- printf("Parameters changed.\n");
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- return 0;. c- q3 L' H: c: S0 u
- }
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