本帖最后由 0522 于 2012-3-21 23:04 编辑
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修改的代码早有了。到今天不会编译。
5 J$ Y5 I* X$ l需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
) Q# j0 k! B2 }: B7 L - #include <malloc.h>
$ @& ]- Q* `# ?. f/ E2 C8 P - #include <sys/types.h>: U3 ^* a& x' J# a. X7 B& y
- #include <sys/stat.h>( o' ^* @# {4 c$ ^* n3 m
- #include <sys/ioctl.h>: `) \( I- R @' }0 V' X; u
- #include <stdio.h>
4 r0 k' C) t4 z j: i4 P- j9 z - #include <string.h>( f+ z- R1 M$ Q; E* k
% R; k' J: @+ e+ C- typedef struct {
" K+ `% b$ C: v7 k2 K - unsigned int e2prom_cmd_sub_addr;
6 c! a# k& C+ a3 _6 v& A' V6 [ - unsigned int sub_addr_count;
. K* w6 u/ [& K( M5 k" s2 H; k3 r# g6 C - unsigned char* e2prom_cmd_data;
% Y$ K$ x4 |9 Q - unsigned int data_count;
& w9 [! ^3 D. g& \9 j2 ^' Z0 i& | - } e2prom_s_cmd;: b; B! b- [! D
- 1 t6 j0 R! O) k8 Z" t2 B
- #define E2PROM_CMD_READ 1
; W6 Y+ T. Z# A" g/ K9 { - #define E2PROM_CMD_WRITE 2
/ m* @% `4 D9 z. l; N8 l) l. ] - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"1 M Q* h$ T( g Q4 {4 |- ^1 k1 F% ~
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- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;* c* P/ B# c J- }7 B3 }
- e2prom_s_cmd arg; {( u8 @ w E3 ^1 q* W
- unsigned char buf[0x18];# P9 X5 B: i. E5 m0 L
/ q9 P' t! y; y- q/ {- fd = open(E2PROM_DEVICE, O_RDWR);* }. n) _9 o4 J8 F3 Q
- if (fd < 0) {
3 \: H8 W: N4 X- |7 a - printf("Device %s open error.\n", E2PROM_DEVICE);
6 x8 m6 f1 @4 U# R! L3 K- v& k - return -1;
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- arg.sub_addr_count = 2;
: E* p' @7 y. G9 W2 H - arg.data_count = 0x18;
' H0 n# x L( O% W2 ~ - arg.e2prom_cmd_sub_addr = 0x290;5 L7 H5 ^9 Y5 w- ^7 e2 @3 ^( v. n1 ]* k
- arg.e2prom_cmd_data = buf; f8 f; ~0 p; c; a6 y6 z* G
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);& ~! \1 [. M' S9 p0 p5 r
- if (ret != 0) {8 f0 \+ F5 j9 \
- printf("Device %s read error.\n", E2PROM_DEVICE);
* h" \ k* E- m6 Y( N' ] - return -1;1 g1 t. R- v/ J9 q# N" L/ {8 K
- }
. C& P9 l! `/ N& ]) V - memcpy(mac, buf, 6);
' k7 K( g! ]% ~2 M. @ - memcpy(stbid, &buf[6], 18);5 j. t+ ^1 b8 o9 @# B9 W5 |
- stbid[18] = '\0';
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- return 0;, [8 L% S2 l3 A4 d5 ?
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;/ U" g! {+ x) R3 [) x4 N
- e2prom_s_cmd arg;
9 N0 E0 R V/ @% M" k% z# R; b - unsigned char buf[0x18];6 _4 M, B; K/ B* p/ o2 `5 |
5 t/ E0 ?, J# O% x" O- memcpy(buf, mac, 6);1 `* K% z! H5 \
- memcpy(&buf[6], stbid, 18);* I' p" z& S/ I, x% z4 K
- fd = open(E2PROM_DEVICE, O_RDWR);
- d5 H. ]& k7 Y5 ^8 F6 u$ t" r4 k - if (fd < 0) {
# U. j. Q. T2 N - printf("Device %s open error.\n", E2PROM_DEVICE);
# h# B. k( \$ y1 K% q. e4 h% M9 _; @ - return -1;
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- arg.sub_addr_count = 2;
1 z7 N q: T0 S - arg.data_count = 0x18;
( ~- E6 ?% r( c$ Z; }2 O - arg.e2prom_cmd_sub_addr = 0x290;" J7 \+ d' v9 [" q5 E
- arg.e2prom_cmd_data = buf;3 ~" r1 g/ _+ n
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);+ _& D+ n$ H+ z1 Y7 u) p9 w- \' L
- if (ret != 0) {
& c( e3 N& I- S( u7 R - printf("Device %s write error.\n", E2PROM_DEVICE);" n- {' l$ Z" e/ Y1 s
- return -1;
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% Q+ q" J9 F) b: k- return 0;* b! B* t6 a" K; [
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: n) p8 |8 T, F0 f5 z2 Z' h- int main()
' O, L3 k9 T' S" u0 w* x' j0 N3 r# } - {
8 t1 I: k$ L. }' Y8 y - char c;% [! m+ n7 B: q8 }
- int i, macs[6];; v9 \, q( j) ^ T1 `
- unsigned char mac[6];/ c3 o" a( h. N, K5 B: K5 y
- unsigned char stbid[256];* p* Y- i. R9 F! O
4 G# E: s7 ]% T o- if (readparam(mac, stbid) < 0)# [* |9 ~9 r, a. O( L2 G
- return 1;
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9 ]7 j, b- R/ b2 p# ?5 ^4 R0 s* J( C6 T- printf("Current parameters: \n");* H4 u( C: R& s4 v
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);( _* a$ U5 |; D
- printf(" STBID: %s\n", stbid);& L" a- q' \" q0 H' O% Q- k1 \
-
- W4 P$ u/ D& @ K; w - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
/ p0 X3 i# X6 _ - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
. ~3 A5 ?, u$ A - printf("Input MAC error\n");# `7 U/ I: e5 D) A H
- return 1;
L+ U5 r7 c$ |( A - }
' h# y' H3 k# { z) I {# D - for (i=0; i<6; i++)mac[i] = macs[i];
2 ^# T- b8 Z4 ~" ~2 n3 N - printf("\nPlease input new STBID: ");- b3 p! G: R* C6 |! [& }
- scanf("%s", stbid);( c8 Y. G% y1 O- b
- if (strlen(stbid) != 18) {; q; Y( S2 v; p' \: T
- printf("Invalid stbid\n");
( g: ^: H' ?* a2 N - return 1;
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- printf("\nNew parameters: \n");
) M) J3 ?& e# d! r - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
, Q, ^; t+ l4 D* O& V; o/ } - printf(" STBID: %s\n", stbid);
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% P2 O5 m5 q% m' z- printf("\nDo you want to change paramemters? (y/N) ");0 m+ K+ y1 G( B: y; }+ F
- for (;;) {5 O9 t' b! X7 v) S/ F
- c = getchar(); y$ ~3 Z- G% ]6 @
- if (c == 'y' || c == 'Y')
! `2 u1 _2 p, ~/ x( z6 y* B - break;
! C& j, ~/ d' N# s. m - if (c == 'n' || c == 'N') {
& Y+ \0 H8 L1 B% M7 Q - printf("\nAborted.\n");
, z7 H) X% a1 @" E6 L% _ - return 1;
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- if (writeparam(mac, stbid) == 0) # e# r8 W9 N5 M, h5 _. g
- printf("Parameters changed.\n");
- k/ O" f; W" u# Q+ I8 Y% D8 T1 Y - : W" b0 i& D, z# k( ]
- return 0;
/ }8 y% K, v6 j% O& J - }
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