本帖最后由 0522 于 2012-3-21 23:04 编辑 8 _( v. Q# x0 `/ l1 r) R! G
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修改的代码早有了。到今天不会编译。
8 I0 ~9 D; w! j3 X# r0 F' j需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
5 M( F1 H6 a7 H* p2 } - #include <malloc.h>/ G0 P6 F; D, u' {" n \
- #include <sys/types.h>. }- g% b, y& Y+ ?4 ~1 u' v. p
- #include <sys/stat.h>
; E c1 f, A1 |+ W- }& ?: ~# W - #include <sys/ioctl.h>3 [0 _. L! |( W* x3 N7 }6 v4 A# S, y5 \
- #include <stdio.h>. u& g/ o [" v0 Y
- #include <string.h># }' ?% Z B; ^0 J& I/ L+ M4 S- K* [
7 e! W8 J4 l+ u' {) \ q& f' b- typedef struct {
) q/ e+ I7 c* v) ^ - unsigned int e2prom_cmd_sub_addr;
3 r1 {- Z7 v& } - unsigned int sub_addr_count;, j/ E e3 |' }! P$ U* _- Q
- unsigned char* e2prom_cmd_data;9 S1 |5 W I) c3 L1 y7 p6 b. S, o
- unsigned int data_count;
" Q+ A2 d8 `% S7 |2 R" N - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
+ [, z; [2 g: F6 _$ p2 G$ E# K3 Y - #define E2PROM_CMD_WRITE 2
$ I' k9 r1 \8 w8 C1 L6 ?9 ~" f - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16") q; Z% O# z" T4 d
/ G% u" G/ r( | s0 T* k9 Q- static int readparam(unsigned char *mac, unsigned char *stbid)
) v% w# K8 m) a) \" B* i4 ~1 a7 N - {
) ^! P7 f' N0 C5 C( c - int fd, ret;
/ ]% T- p, W7 [9 p2 q( _9 @5 \' \" | - e2prom_s_cmd arg;
, T2 ^5 n: T7 r+ Z - unsigned char buf[0x18];7 ~8 U2 s! x2 ^$ I. m
, U* A" l# c) `% X- fd = open(E2PROM_DEVICE, O_RDWR);
: R) i5 t* [/ |3 j0 `* [ - if (fd < 0) {
, Q# ^4 n" l8 i0 A% P1 w - printf("Device %s open error.\n", E2PROM_DEVICE);0 {4 r2 @0 @; F6 o( x
- return -1;
" h7 R0 _/ t" K8 e, E- \" F - }
3 J; J3 M: B. Y1 ^/ o - arg.sub_addr_count = 2;% n \ b8 c5 Z5 z
- arg.data_count = 0x18;
( D- n: y' p3 n3 b; f - arg.e2prom_cmd_sub_addr = 0x290;# V" q- ?5 G$ i9 H, U8 v6 @0 R
- arg.e2prom_cmd_data = buf;
: D f1 X% }1 Y2 R0 U - ret = ioctl(fd, E2PROM_CMD_READ, &arg);; z8 m0 j1 r5 I9 |* t a* e
- if (ret != 0) {
8 q+ ~9 J& O0 | s ]1 `( U4 ] - printf("Device %s read error.\n", E2PROM_DEVICE);1 }% }2 T" S9 K( J( e% H8 f
- return -1;
4 t) y2 `) b! [) ^( p9 I - }
4 e# [- l. ]# Y - memcpy(mac, buf, 6);
+ g4 ` ~% o8 p+ X - memcpy(stbid, &buf[6], 18);1 ]1 D# Z# L! H$ l( @( O
- stbid[18] = '\0';
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; ^6 ^) ^) S$ a, D" `- E+ o- return 0;( O, q& e: H2 h
- }0 z6 ?2 ~ h' v7 u+ r$ j! l
- # ^, C2 Y0 \. r
- static int writeparam(unsigned char *mac, unsigned char *stbid)
7 D) w# Z: R+ L+ V6 R1 {6 {, g3 Q, S - {1 c! C; v; W! F O
- int fd, ret;
- s; u" Z9 ` s: }( y - e2prom_s_cmd arg;
3 M) j7 W4 K1 p9 c9 _- Z - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
4 n# T% E7 i6 d0 \8 e* R - memcpy(&buf[6], stbid, 18); [, O- |) P3 U- J2 ~: i
- fd = open(E2PROM_DEVICE, O_RDWR);' M' [% T* c5 y+ N- v. C* ?
- if (fd < 0) {
4 }; z: t+ J; R; |- X - printf("Device %s open error.\n", E2PROM_DEVICE);& Y8 u; j. t/ H/ i; R
- return -1;
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- arg.sub_addr_count = 2;' ^; @6 Q" e& w3 k
- arg.data_count = 0x18;& B7 P4 f+ n3 b! U% Y
- arg.e2prom_cmd_sub_addr = 0x290;
& [! f7 S% w$ M" z; k8 e" |/ A, s - arg.e2prom_cmd_data = buf;
" p# F# n Q4 Q - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
3 n+ E# @9 F1 T5 g+ b; ]4 H - if (ret != 0) {, f# m4 q M( o( n, ]4 d
- printf("Device %s write error.\n", E2PROM_DEVICE);2 i H5 [; E$ f7 D/ g$ l/ l- v
- return -1;/ Y+ Q/ ^2 Q2 ~
- }
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- return 0;# v# J+ ]+ }$ D6 l* {) Q
- }
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- int main()+ Q" f5 X1 c- `9 E( r
- {$ h/ t j+ m) p6 [" O3 K
- char c;
9 A' K: I! ^4 B g# I' J. W' q+ U1 k - int i, macs[6];) f& ~' O9 S( B: l1 |: r
- unsigned char mac[6];8 ]" ^' f5 E, m( N
- unsigned char stbid[256];' }3 }- \, @/ f* l$ y
! r* S- p# [" c& W3 n, o+ T- if (readparam(mac, stbid) < 0)$ h% W, |$ ]8 K D5 f1 p
- return 1;
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- printf("Current parameters: \n");3 ?! {( N v# C7 G! y
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);+ z6 P3 i6 k3 y5 ^) |: e& M
- printf(" STBID: %s\n", stbid);/ j; L9 {" i5 I: c. q
- 4 ? R6 E# @, ?5 \
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");9 B' |% O6 m U8 M2 W: d* p1 m
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {, Q& F% S3 o5 O' w( i ~
- printf("Input MAC error\n");
0 N$ b( B1 v* n( u, t* \ - return 1;% l$ B6 a3 I2 f( a
- }% U# j& {# r( n
- for (i=0; i<6; i++)mac[i] = macs[i];
* W! x! R5 B9 `# A - printf("\nPlease input new STBID: ");
( `# u* d- a4 M9 w. w' e - scanf("%s", stbid);
! S. v6 ~, p- t! X- Q2 J: [ - if (strlen(stbid) != 18) {% c1 t$ a) {* q; i0 D
- printf("Invalid stbid\n");: w" j9 x7 E8 ]) O$ A
- return 1;
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- printf("\nNew parameters: \n");+ I' V, N* r6 Q
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);" G! L% Z, j9 X* L1 U
- printf(" STBID: %s\n", stbid);
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' J {. F3 ^5 z7 f/ S+ k# G- printf("\nDo you want to change paramemters? (y/N) ");- b# y6 \- u' M1 P, ?8 j/ }
- for (;;) {7 d/ S: h* [, a" r8 L- d, {, N5 R/ f
- c = getchar();6 t% G* ]( X3 ] L r( \% m
- if (c == 'y' || c == 'Y')
, G1 `- W `' s, d1 F' d - break;- P: f7 J3 B- J; _( ^% L0 q; U6 A
- if (c == 'n' || c == 'N') {
9 o+ O/ Y/ {' U+ ]! ]. o# v - printf("\nAborted.\n");# i) A/ E, S! f+ M( x2 L! |
- return 1;$ H7 Y6 p _. }' j# [9 _8 C
- }
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- if (writeparam(mac, stbid) == 0) : i: G" e9 L: d) t9 k. s8 V
- printf("Parameters changed.\n");
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- return 0;
2 {9 s+ J9 i+ U8 Y# z8 D" | - }
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