本帖最后由 0522 于 2012-3-21 23:04 编辑
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% A& }7 |% `) c- T修改的代码早有了。到今天不会编译。
# I+ u: s9 l* x& `1 P4 x需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
* w* f% L- _3 x6 y& h - #include <malloc.h>4 _ S( M( b( d! J5 n2 b
- #include <sys/types.h>1 C8 ~8 V2 g5 v
- #include <sys/stat.h>
1 R, N6 l# m! K$ W9 i, u4 n - #include <sys/ioctl.h>
) ?0 w! \' `/ p x - #include <stdio.h>) j$ `: f* J# ~$ _% |
- #include <string.h>1 C0 d* }4 Z* S* ^
- 5 A5 s( T2 y9 s% _6 E7 p5 [) P
- typedef struct {
( Z* a1 \+ p) T4 i - unsigned int e2prom_cmd_sub_addr;# f; J3 U, D' {: O8 ?
- unsigned int sub_addr_count;
8 w& C2 H' W! d4 b - unsigned char* e2prom_cmd_data;
+ x. Z2 o/ m7 a - unsigned int data_count;
. G# h/ Y: c2 }1 v3 ^, U - } e2prom_s_cmd;
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Z3 \$ k0 p* f Q g- #define E2PROM_CMD_READ 1; `- K! _+ G7 K, z
- #define E2PROM_CMD_WRITE 2
5 y8 s* r% N6 {0 t; V# d6 p9 l8 V - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- I6 v% `% p8 K) q4 q) S- static int readparam(unsigned char *mac, unsigned char *stbid): e$ c; n( S0 l, L, R r
- {
" M; g0 ?3 @: J1 F" f. w' _# I - int fd, ret;% Q" [9 n7 k, n: p! _+ y
- e2prom_s_cmd arg;0 f) S# h% x+ O4 { {- U
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
R% N; O3 _" b) E - if (fd < 0) {- [0 l$ a$ D( ^ }7 m
- printf("Device %s open error.\n", E2PROM_DEVICE);
7 o8 u& t" M; c/ v& ? - return -1;! ^ w% Q; X6 Q
- }# }2 A. g0 N9 ?8 n5 F
- arg.sub_addr_count = 2;: B; z- a+ e. a" ~7 u1 X! u- ^: d
- arg.data_count = 0x18;: e+ i' T8 g* U1 J/ b' j/ H
- arg.e2prom_cmd_sub_addr = 0x290;
2 [+ A( D) [" G) \0 a - arg.e2prom_cmd_data = buf;
, X" z+ S1 \+ N0 N8 g ~6 ? - ret = ioctl(fd, E2PROM_CMD_READ, &arg);4 h' S! L0 A1 S U
- if (ret != 0) {) s# ]( N+ z6 \2 R
- printf("Device %s read error.\n", E2PROM_DEVICE);6 X- \0 X) o$ C) H6 q
- return -1;" e8 K b& Y4 I
- }; E' C8 U* D E, n
- memcpy(mac, buf, 6);2 [5 e1 d$ Y+ d
- memcpy(stbid, &buf[6], 18);
3 y$ S. R# m d# `: h8 D% G+ q - stbid[18] = '\0';1 k; U9 i% h- e+ a& u
- * O- F2 I5 ~2 s
- return 0;
7 ]) h) C7 {9 s- u2 m - }
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9 F [2 q9 p! y K5 \9 ~8 f- static int writeparam(unsigned char *mac, unsigned char *stbid)0 d+ U+ K7 n6 R: |
- {) ^2 m, Y2 T6 B3 g, q R" a
- int fd, ret;1 g8 b7 P5 H( @6 Y. A8 K
- e2prom_s_cmd arg;
4 Z( x; H0 k& I1 P; v5 q7 d - unsigned char buf[0x18];
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7 C H, h2 Y+ g- memcpy(buf, mac, 6);; H. |- @+ d$ G* k
- memcpy(&buf[6], stbid, 18);! ~2 p' A& k" B# I4 p
- fd = open(E2PROM_DEVICE, O_RDWR);
, t) e! U: j0 I. _8 F( W3 i - if (fd < 0) {
" Z2 f6 p' p0 q: I3 V1 F8 b - printf("Device %s open error.\n", E2PROM_DEVICE);
, {1 ]" n# }% L. p! o: | - return -1;
+ e& C5 h, z D r. n5 S# X$ K - }
- {0 C0 W0 l( x3 a- U - arg.sub_addr_count = 2;1 B' Z( Y5 G8 K v6 B4 ^ t' k
- arg.data_count = 0x18;" {6 E. z7 `& d4 ^
- arg.e2prom_cmd_sub_addr = 0x290;4 g: X$ V) i5 J, {7 [& C9 K. ]
- arg.e2prom_cmd_data = buf;- y7 [' W) V' D5 F. a, Y& @
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);, N2 ~, L) Y' J: \' T) w' G
- if (ret != 0) {# T3 Z3 h ]( K" W3 g
- printf("Device %s write error.\n", E2PROM_DEVICE);
3 q! [) T! g7 H- `1 Q ~. q - return -1;
2 |7 B2 ?' y4 [0 _6 b# f/ B G* H - }* p1 X6 ~' _. j) j$ U. o: ~4 w
8 }, R0 v! B$ X: P. u. i- return 0;
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- % c8 ]$ o4 a6 [9 \+ f# Z, l
- int main(). V# S k4 ]) v" r
- {. {1 N4 N6 s3 j7 i( O
- char c;) N' Q1 [+ c) A: T
- int i, macs[6];, L# [& {; W; O3 j- M' e) w
- unsigned char mac[6];
5 `; X; k) _; H% f$ f' v - unsigned char stbid[256];
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, N5 w0 L4 h7 x) L! A2 T( W5 y4 I+ e- if (readparam(mac, stbid) < 0)) ~" U/ N3 Y0 x9 K2 d# T
- return 1;2 Q! M. q- T$ i8 r; h
; Z) A. J. L( \- printf("Current parameters: \n");( \1 ^. @% M3 |* J' g' m
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);3 _. j O+ t: a; K
- printf(" STBID: %s\n", stbid);8 p* u$ m8 t, k) N. P* `
-
$ Y F5 \9 `, g- | - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
$ {8 P! p/ n( w5 ]6 l - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
; A9 k: m5 i/ K - printf("Input MAC error\n");
( ]: S* o0 Z) u, } - return 1;1 u, T! {' t1 G- d! Q0 y1 e
- }/ K8 R/ q$ G* E7 K5 n2 U' I
- for (i=0; i<6; i++)mac[i] = macs[i];
6 j0 H9 U4 c! }: s8 G - printf("\nPlease input new STBID: ");
. Q: t+ w% K2 R5 v - scanf("%s", stbid); Z' Z/ S+ j& U- Q; {
- if (strlen(stbid) != 18) { m: @2 p& s7 R
- printf("Invalid stbid\n");: b6 G c* |: F
- return 1;
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- printf("\nNew parameters: \n");) o" T4 G, }$ ^1 O6 t" @% d K
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);$ w3 L# r3 ]6 {. f( A4 ?) f5 F o+ ]+ ?, e
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");* A7 J6 g1 X$ {" v" x9 D( [
- for (;;) {. U4 {2 ?0 z9 D4 P
- c = getchar();5 F9 a$ z+ V- m3 _& p
- if (c == 'y' || c == 'Y')
0 s: {8 S- t N, w1 |9 l9 Q - break;/ j: ^2 N7 |$ N: H
- if (c == 'n' || c == 'N') {
2 l/ A, J% ]1 r4 [9 B - printf("\nAborted.\n");" o) w8 _2 r, j1 M1 t
- return 1;8 m# K" J f. d. o/ Z$ W
- }
F4 R5 k0 x% l$ o - }
) S7 _$ v9 E2 V2 [7 M3 |6 B - if (writeparam(mac, stbid) == 0)
- Q! a" [8 h3 C+ D- h- a' o( L! a - printf("Parameters changed.\n");
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* f9 p" ]- C. Q5 u0 ~1 T- return 0;& \2 B& h6 ]) S7 h$ e, ]
- }
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