本帖最后由 0522 于 2012-3-21 23:04 编辑 " |! E& c3 a, c( k9 u- a
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修改的代码早有了。到今天不会编译。
* k( ]9 Y+ o6 M x需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>: d' T0 K1 B) |7 Z( {" }
- #include <malloc.h>; l6 p1 y( j7 U' i9 t: I9 F5 ]
- #include <sys/types.h>; q. P/ R/ k9 |; I$ K$ ]
- #include <sys/stat.h>
& u: L+ I! J; g& R) g: A - #include <sys/ioctl.h>
3 v c& X9 Y# h% l) l) l* \6 G - #include <stdio.h>4 X/ P7 d% w J
- #include <string.h>
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; }+ ]9 C% _, x. l, \- typedef struct {& J3 t! H. Q. P$ u, w% [
- unsigned int e2prom_cmd_sub_addr;: N+ z R8 v ], x0 M4 P$ M
- unsigned int sub_addr_count;
2 ~" y5 [: p! q' l. c5 X - unsigned char* e2prom_cmd_data;
2 q. A: _3 Y0 w" L - unsigned int data_count;1 w! ]9 Q& G0 Q( q# P
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
f, Y4 r& b% x. u - #define E2PROM_CMD_WRITE 2
1 r' z* u, i* J& U6 F; e - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)$ s1 s1 w+ r4 B& p5 n( ?
- {
; y. t, w1 q) h - int fd, ret;
: c) L, B! B6 u - e2prom_s_cmd arg;8 g& w0 V l& h0 h" y7 v b" v
- unsigned char buf[0x18];
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1 `* M8 {; {( A6 ?4 y A) `- fd = open(E2PROM_DEVICE, O_RDWR);
2 f V; J3 P& } - if (fd < 0) {
4 Q! e+ r% D9 G2 ]2 g% p - printf("Device %s open error.\n", E2PROM_DEVICE);5 i4 G* c, O) V) j1 K* A
- return -1;$ V. [9 Y) o, [2 G
- }
% s* h7 i! O+ c1 C( B6 _8 M - arg.sub_addr_count = 2;
) |( d* n+ p8 V - arg.data_count = 0x18;
3 t; E, Y. H& ~3 C! z - arg.e2prom_cmd_sub_addr = 0x290;0 J0 f$ d+ \/ U! F1 ?8 S4 D1 H
- arg.e2prom_cmd_data = buf;
^! G/ [& }' }# z8 u - ret = ioctl(fd, E2PROM_CMD_READ, &arg);: L4 \/ C! P* m: W
- if (ret != 0) {, F0 ?: T9 D+ Z3 D
- printf("Device %s read error.\n", E2PROM_DEVICE);
/ _' y. `1 F0 |3 z- y$ m, m( [ J - return -1;
- A ~0 D; i# a; G! @. }! I! L - }" j/ K* A+ @* ~/ H' [
- memcpy(mac, buf, 6);
$ p; L" Z6 K& U# _ - memcpy(stbid, &buf[6], 18);
* }7 F- k( V1 w. b) k# R/ g - stbid[18] = '\0';
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- return 0;# x" I2 O( m0 r
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- 8 |# ~9 E! Y) ?1 O7 ~1 H
- static int writeparam(unsigned char *mac, unsigned char *stbid)
+ O) T. k s" B4 D+ m - {
& I) X E( o- Q; ~& F( V - int fd, ret;. \) [4 K- L0 `: ]1 F8 K: e' K" s
- e2prom_s_cmd arg;
8 G/ v9 G( T" e' T4 M+ o. g2 w9 M - unsigned char buf[0x18];4 Y7 n( U2 `0 @0 T+ ?; K
; x$ _( q2 M. P2 _4 y- memcpy(buf, mac, 6);
% q/ k, K& J% q3 m5 Z" s - memcpy(&buf[6], stbid, 18);# M4 @8 @* {8 n! l6 j% j/ I% ]; p+ |
- fd = open(E2PROM_DEVICE, O_RDWR);9 w: H7 L; K4 A/ q7 O
- if (fd < 0) {
* o3 t4 p$ Y" T9 P - printf("Device %s open error.\n", E2PROM_DEVICE);
" n6 s5 g; _" }5 ?7 I - return -1;5 n3 f+ C% V# x4 L5 g$ }
- }
$ o( n f& b1 | - arg.sub_addr_count = 2;/ h7 n. A4 S% T
- arg.data_count = 0x18;: p Q2 }& F6 d1 ?0 o% P. m
- arg.e2prom_cmd_sub_addr = 0x290;
* [3 L+ k% u: `! q8 \ - arg.e2prom_cmd_data = buf;; O. r# T+ R2 n
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);0 C* _" O: J9 i1 L0 x. H+ X+ k
- if (ret != 0) {% {8 s5 |) S9 V
- printf("Device %s write error.\n", E2PROM_DEVICE);' k7 u- D* q- D& H, w
- return -1;. \0 H/ {! W4 p9 b/ j; {4 X* r
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) ^ I6 b4 |& ~5 h) _" [) h, d9 T- return 0;$ C- y" C* s3 }- }5 S
- }
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+ `* l2 n& q! i- f0 P- int main()
- n/ |. _) E( d" a - {
8 O4 @+ G2 L5 W/ F) | - char c;$ t2 E0 B- Y. b9 Q; X
- int i, macs[6];9 j9 _& V* n8 L8 N1 L
- unsigned char mac[6];
9 w6 R/ j! A- c - unsigned char stbid[256];
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, ?$ ~# Q8 O; E1 U$ A& a- if (readparam(mac, stbid) < 0)
! M- n9 y1 }5 l3 P$ j3 c, P; l - return 1;
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/ T2 l9 t7 I9 @8 t! ^- \, r- printf("Current parameters: \n");
6 N6 G+ }4 [5 G% v - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);" h! N& h- A. N5 ]- f
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
2 r( {2 B$ O$ | - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {6 @7 l- \5 a7 M; \$ U9 I/ c- ~
- printf("Input MAC error\n");. C7 s( k' x9 A8 X7 u2 c
- return 1;
3 q2 O0 f* E$ p1 V" O" F - }
' W/ U1 {$ p1 }# _& p) e& B- W- P8 s7 D; t - for (i=0; i<6; i++)mac[i] = macs[i];. W. a% }" C9 j& t5 P
- printf("\nPlease input new STBID: ");% y* T- d+ Q6 E
- scanf("%s", stbid);, V; M5 U, V# e/ ~: }
- if (strlen(stbid) != 18) {
) A- ?* c+ @* j: k - printf("Invalid stbid\n");
; V3 F- O9 @- }5 U$ D - return 1;
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- printf("\nNew parameters: \n");
' V- t& }, V0 W - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
! k- ?3 S* R& R5 ^* H1 Y - printf(" STBID: %s\n", stbid);* Q1 K4 k9 U: p4 C8 }
- % C' o( N- F9 Q
- printf("\nDo you want to change paramemters? (y/N) ");0 R `6 W- N- O9 ? h
- for (;;) {
2 J- h: X! J" K# ]7 v" b1 x1 K - c = getchar();
6 m. V8 I: j7 X* \) L2 k - if (c == 'y' || c == 'Y') E3 k! H/ N( ~8 h
- break;
2 B, K, O1 @ @5 G& d - if (c == 'n' || c == 'N') {
$ L5 ?; @2 b7 c) d1 j - printf("\nAborted.\n");
# i1 P6 d5 W! V2 _9 T - return 1;5 e" \5 q& O% ^$ s1 R1 O8 x/ C
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- if (writeparam(mac, stbid) == 0)
+ n d$ p" A, D! K2 F - printf("Parameters changed.\n");& u1 n8 M' @$ R4 P0 d1 `
" q: k' d% V$ q5 q9 R) {- ~- return 0;
8 o$ e6 Y* H0 x- c2 l: D: [( k - }
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