本帖最后由 0522 于 2012-3-21 23:04 编辑 . z/ J! w5 X: n% x2 M
- C. r x# Q! q8 k修改的代码早有了。到今天不会编译。9 |1 ~* h- H- B
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>7 V; u( j8 J6 ~
- #include <malloc.h>
& @2 a0 {" `7 l. ]: \3 y4 a - #include <sys/types.h>% a- Q' ^8 ]9 T% h! ~. k
- #include <sys/stat.h>
* i4 D7 J i4 m" _2 S - #include <sys/ioctl.h>
7 e* h1 [! A$ Y/ [) `: Z - #include <stdio.h>1 J, m7 i, R' I, ]7 I2 B. t
- #include <string.h>
/ p5 S. x0 z( b! K5 G
! U) S. Q5 V9 k! S- typedef struct {
, d- X7 l( ]! |* D - unsigned int e2prom_cmd_sub_addr;- F, A/ S! j3 [- @1 R! t4 I$ s
- unsigned int sub_addr_count;
/ [( q! ^8 b1 E4 a - unsigned char* e2prom_cmd_data;4 M$ w8 o Q+ f* y8 Q! A" d7 W/ {
- unsigned int data_count;
: ?' V7 O/ @7 y5 c6 w5 h - } e2prom_s_cmd;
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0 g$ @% v, Q( J4 e- #define E2PROM_CMD_READ 12 z8 R" G, x# S: m+ `
- #define E2PROM_CMD_WRITE 2
" ^# X! f3 Q: @* i$ r* D# Y: t7 c - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"% e# [7 I" r. C- x' `3 U
- + B/ Q1 I+ {. d$ e
- static int readparam(unsigned char *mac, unsigned char *stbid)
4 N* O2 V7 @' e& F4 i# o% F - {
' h6 _% M2 X4 }. S - int fd, ret;5 o/ S+ H% y, S
- e2prom_s_cmd arg;6 h4 L* b: I& O! i1 E9 k
- unsigned char buf[0x18];
7 V" E7 s+ L, h# y& u$ u. _" [7 ?8 U - % U# j- i6 X% I: |( _ P* h
- fd = open(E2PROM_DEVICE, O_RDWR);
8 j0 s5 p8 y& ?% Z7 C& V$ H/ ~9 J - if (fd < 0) { [# {8 @1 M$ e0 s" s5 p8 R
- printf("Device %s open error.\n", E2PROM_DEVICE); r4 l* L7 a" e3 p
- return -1;
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- arg.sub_addr_count = 2;
5 h5 X5 D6 K$ a, W/ p - arg.data_count = 0x18;. f. w$ r. j: Q8 B7 E" C/ N
- arg.e2prom_cmd_sub_addr = 0x290;
4 T! u6 k' k: s: F8 ?' P: [& ^! o - arg.e2prom_cmd_data = buf;, h+ f9 A+ F$ P p) s3 ]3 C0 B
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
6 I: u" P4 `$ O - if (ret != 0) {: f4 k9 P# q# X" L: L1 N
- printf("Device %s read error.\n", E2PROM_DEVICE);1 Q2 h9 S! m, {1 s$ e
- return -1;. ^% l$ H: \4 |% g2 W `' R
- }
9 w- _4 M; p6 S7 l0 J - memcpy(mac, buf, 6);
" h% E& N/ C( i2 w( u9 c5 k2 a. T- \ - memcpy(stbid, &buf[6], 18);! R( ~& P) Q J7 q0 D. X; T3 C
- stbid[18] = '\0';
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- return 0;; {8 k; S; E8 _
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; m: s- x# n& K& \: P& _- static int writeparam(unsigned char *mac, unsigned char *stbid)
! |' j- A8 R) v' k" N& G% w5 O+ e - {. f# K% u: Q' U/ W: H7 i
- int fd, ret;
( t# Y: O+ }( p$ p( W' \ - e2prom_s_cmd arg;
/ x5 E$ s# Z# W9 z: G - unsigned char buf[0x18];
, G, |) q3 C3 S$ }
' S. x. e( J+ t1 e% P; Y- memcpy(buf, mac, 6);
* v$ B" u1 N3 A- E1 [7 X - memcpy(&buf[6], stbid, 18);
8 p. F ]$ W! t; }2 N4 _ - fd = open(E2PROM_DEVICE, O_RDWR);/ d2 [0 }0 U6 w" K9 L/ U7 l- H5 q
- if (fd < 0) {3 T% M3 r, |( j7 ?( s8 O! X
- printf("Device %s open error.\n", E2PROM_DEVICE);
9 Z( V( G9 t- j$ t2 Q# i9 L5 F - return -1;, e/ a. I' j& ?9 Z
- }3 n6 b7 R& w7 @' f# a' P
- arg.sub_addr_count = 2;3 C1 R9 b2 k7 c, c) w; U( L
- arg.data_count = 0x18;' l# y( v& M8 [$ w0 p" m
- arg.e2prom_cmd_sub_addr = 0x290;
7 I0 s" n# }+ l3 E4 e! j - arg.e2prom_cmd_data = buf;
V% `4 c1 e3 F9 o9 q - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
$ Y# D' Q5 R7 C- l' A - if (ret != 0) {
5 H" ^( H' x `0 i, I& x - printf("Device %s write error.\n", E2PROM_DEVICE);
- y2 \! Y/ P% [. a, P. h4 O4 {: V; E$ Q - return -1;# d/ i2 G# j: ^8 j" t F2 Q. {
- }
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- return 0;2 |1 c7 r W8 s* G
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- . a' v# T& H7 m: A/ M$ m
- int main()
2 Z z3 p* \5 x! R3 p, @ - {
8 | r1 L0 c" l- Z - char c;- i+ J5 N; K5 e
- int i, macs[6];. d: q0 L: ]' [+ @6 {
- unsigned char mac[6];4 c8 B& T J! P: N
- unsigned char stbid[256];9 A+ g. M$ z3 d
% M; E/ ? u0 o/ }+ {8 z3 X! o- if (readparam(mac, stbid) < 0)
+ @! J" j+ L# o# x - return 1;
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. k# N" l$ I; Z4 p3 P4 U1 e- printf("Current parameters: \n");6 T( L [5 {: n2 c* z
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
- Z8 L- i, {+ \ Y - printf(" STBID: %s\n", stbid);
' Z6 O6 l- b+ |1 k; y- Y/ k -
( a/ n! W: f4 p5 j) r9 m - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
; x) W5 ?9 ]; [9 O% C6 Q) P - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {. T& e) v |8 b2 ?9 N8 k$ q
- printf("Input MAC error\n");8 S# O/ X. P1 Y# c8 t% w( u! L8 ^
- return 1;
) N% B, Y2 Y/ ~7 U/ ~& D- Q - }
& w+ [9 G3 a- e& A, i8 B - for (i=0; i<6; i++)mac[i] = macs[i];
0 U/ b/ P! j+ D1 b7 j3 {! G8 d+ Q2 G - printf("\nPlease input new STBID: ");4 A; @9 v) C X. b; z: E g# Z
- scanf("%s", stbid);1 X; O) x3 n4 M& z- U
- if (strlen(stbid) != 18) {
4 D1 \/ p0 T; C4 y( c/ t7 `) W - printf("Invalid stbid\n");
5 [- g$ R+ n7 y% R4 T - return 1;# z+ W9 P) O9 u. ^3 S
- }
1 a' s! \ {. b3 E8 r4 U/ ^% Y" u - printf("\nNew parameters: \n");" O. |4 Y+ j# G" |
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);1 a5 P1 I1 l2 X% q) `
- printf(" STBID: %s\n", stbid);. N4 G* h* T3 O2 W1 z# R! T; V7 S
9 I v4 s! m2 M* x$ h9 m- printf("\nDo you want to change paramemters? (y/N) ");
; o/ j$ i2 o6 s. M6 V2 f# L# Z - for (;;) {
( A6 r3 r. F! E. Y0 I" c1 c - c = getchar();3 G4 C' K; E+ Y
- if (c == 'y' || c == 'Y'): s+ x2 t% E6 U3 |) k7 W' Q- n
- break;
: ], n# u( z# P+ Q8 K - if (c == 'n' || c == 'N') {4 B5 y( a2 ~% B" W7 x8 N: l
- printf("\nAborted.\n");% Z- R1 e7 L5 E# f% C5 O. {% V
- return 1;
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- }4 D8 Q# P0 i& A6 G5 s# J; c- r
- if (writeparam(mac, stbid) == 0)
& L% f9 w0 R/ b; H3 @9 q2 d - printf("Parameters changed.\n");/ q, @7 H8 z. [1 u. `# e% Y
* p$ s7 n+ \0 n7 d- return 0;3 g% r3 @3 b: @' Q+ E. e
- }
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