本帖最后由 0522 于 2012-3-21 23:04 编辑
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( J: R2 T, `6 H' H4 S; _修改的代码早有了。到今天不会编译。
3 S T: e! N) o; W# ?1 Y4 l需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
T( k7 R W& o - #include <malloc.h>1 {! d3 q, |( _3 \
- #include <sys/types.h>4 K" Q9 j" n. i# [/ `
- #include <sys/stat.h>8 I; @5 F) H( X8 V
- #include <sys/ioctl.h>
p3 O. F A. g0 [+ H% {3 V Y - #include <stdio.h>' k2 X2 G' H9 Y# r: {6 H
- #include <string.h>- z" S) s* s2 i. c# _& ^" ?* H
G; m2 S3 y' ]% o7 [8 |- typedef struct {9 v" Z" k2 _5 U6 I: X" a8 F: x
- unsigned int e2prom_cmd_sub_addr;6 s. Y- D0 n, e8 H/ q' H
- unsigned int sub_addr_count;1 A! g8 H5 s0 C- h
- unsigned char* e2prom_cmd_data;3 P$ I8 K! U8 b* j
- unsigned int data_count;* F( B q$ ^' m9 j
- } e2prom_s_cmd;( c$ s7 B; ~' ]1 Y. v
- ; {- k0 z0 d& `9 D1 a
- #define E2PROM_CMD_READ 1. Q G/ r& ?+ u
- #define E2PROM_CMD_WRITE 2! B) E! q- g0 J/ k& B8 y/ u+ D9 Q% S
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16" {6 s5 D% q& n
* `2 |9 [! ~; G! l' Q- static int readparam(unsigned char *mac, unsigned char *stbid)
) z0 S6 S4 V5 e5 i1 j( H1 G2 v - {$ a2 @8 k# Y- }+ ?
- int fd, ret;
. E2 U3 E$ X8 A0 [3 L, T6 d* |$ ` - e2prom_s_cmd arg;, m5 g# Y( n! @
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
3 z R) X9 z" v5 h7 O" B% n - if (fd < 0) {# }& Q5 a- i( y8 R: V7 D
- printf("Device %s open error.\n", E2PROM_DEVICE);
1 R2 g$ u1 I/ k) V - return -1;
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7 X; c. S) J, ], Y% Y - arg.sub_addr_count = 2;
7 Z; ~$ r% Y j/ F' G5 r - arg.data_count = 0x18;/ A1 K% ~* v5 u+ A% N
- arg.e2prom_cmd_sub_addr = 0x290;
9 _0 T9 t0 p+ F2 S - arg.e2prom_cmd_data = buf;
# k* L. \5 ]# [$ | - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
2 _) C+ W2 H$ r. U/ h - if (ret != 0) {/ C" J1 A$ j/ s+ }3 L0 I
- printf("Device %s read error.\n", E2PROM_DEVICE);
# a! `5 l4 V, w2 m - return -1;/ b! j* }* {% e. c R
- }
& E! R. z# E8 J, F6 d0 r - memcpy(mac, buf, 6);
0 r, ]- t+ x& M2 d - memcpy(stbid, &buf[6], 18);7 t7 Y2 h7 c S# A9 k4 W" u/ s$ b
- stbid[18] = '\0';
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/ h6 n$ `6 o! g3 v- return 0;
* o7 T; y0 x7 Z5 R; H - }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)8 {+ O3 X: ?& W3 m7 A" F
- {7 K6 J/ y$ f- G' G; A1 h
- int fd, ret;
: `, j5 l, Z+ `; D8 z9 R+ B6 a - e2prom_s_cmd arg;
4 h ^5 T! [! w' Q H - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);( K( }6 Q7 w- Z9 H1 i
- memcpy(&buf[6], stbid, 18);
! i5 F" @9 G+ ?, G0 _. T - fd = open(E2PROM_DEVICE, O_RDWR);5 k5 N- j7 m0 \7 u# B: g2 h- B
- if (fd < 0) {! K7 ~- e8 I" p5 s
- printf("Device %s open error.\n", E2PROM_DEVICE);0 E5 s- m# _* {! f7 ?
- return -1;
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% L F" h8 e0 P4 W# a - arg.sub_addr_count = 2;; Y7 J" x0 w( @. P2 n" `
- arg.data_count = 0x18;
* M8 ^# y; i$ Q1 U. f7 t5 R8 C, D! \ - arg.e2prom_cmd_sub_addr = 0x290;
' ^1 M1 G& v& l" c! j( j - arg.e2prom_cmd_data = buf;
3 Q% N& P: E+ [$ \) k6 _5 h- L( c - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);: y6 d, G3 N4 H- L5 u
- if (ret != 0) {
, Q' ~; N3 ?0 `3 { p( A; m$ @ - printf("Device %s write error.\n", E2PROM_DEVICE);8 N9 Y t- e1 }: u6 S1 c
- return -1;$ z8 S! \7 O' l' P
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, E) P/ X1 ~; k% |- return 0;
3 E5 ^0 y$ T i2 y. ` - }
# n ^; b) Z0 E, [" ^" \& y. f6 @
3 ]5 C1 n' f- e- int main()
0 {$ a3 I4 v) ~: ]* o: M: @0 v - {, q* `; i7 v5 ?( l
- char c;
) o6 {7 C9 n1 Z2 V% Z8 r - int i, macs[6];
. m) M' S6 ^" q, J0 E, M) e - unsigned char mac[6];
8 e+ P- d5 @; u; ~9 U' f - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
* M- \0 u9 ^' O y) n( ] - return 1;
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- printf("Current parameters: \n");5 Q+ V1 U$ G* G% q/ C
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
# ?& y, f% ?' v' A/ q, b- z - printf(" STBID: %s\n", stbid);$ u/ i3 \6 _% K. k) T. g' q
-
: z" j. t! @5 { - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");1 @- G1 \& V& I+ m/ i+ {' L
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {9 n) E4 m; Z8 h# X3 D6 U
- printf("Input MAC error\n");4 h; }( q# a X" t6 A* k. q% F
- return 1;+ w0 p, f- J) s+ N
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- for (i=0; i<6; i++)mac[i] = macs[i];* i) u! X h1 X9 w6 s3 Y# R* N6 ~
- printf("\nPlease input new STBID: ");
2 U) [3 \" B* S- x/ o! ^( U* g0 p - scanf("%s", stbid);+ N+ p# \1 _1 J9 K
- if (strlen(stbid) != 18) {
0 V) D5 |% S* P" p# N6 [" B - printf("Invalid stbid\n");# o: j7 j5 `$ Y
- return 1;1 Z& d& [& n* x! c( }8 w; I) v
- }! o+ g: ]1 H/ f. }$ P! L
- printf("\nNew parameters: \n");% S. V8 \4 u: ]. z0 U# \
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
/ J# y& Q$ l; ^9 M - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");' R' |% D$ j0 P+ G
- for (;;) {
1 ~$ A: K# i* Y; s# h - c = getchar();6 ]; W+ \( j5 F& H' w9 Y
- if (c == 'y' || c == 'Y')# x7 }* x- U& E/ j
- break;
9 n% c* t f) Y - if (c == 'n' || c == 'N') {
/ ?5 Q" {2 A$ _( k4 n6 }) j - printf("\nAborted.\n");
4 ~1 l' G6 \0 Q' ?/ K, e8 ~ - return 1;
5 ^& c6 f% v a4 K' { - }
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- if (writeparam(mac, stbid) == 0) 5 }6 k1 h+ M& y9 r* c
- printf("Parameters changed.\n");
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( m9 @3 i% }% W" h7 |$ ?- return 0;
) d, |, k/ }6 L; t4 b - }
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