本帖最后由 0522 于 2012-3-21 23:04 编辑
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4 ^- R9 l( P. o$ r. h( B$ A修改的代码早有了。到今天不会编译。
9 b- e$ G; q5 K9 c! L1 T& C( ?需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>2 q- U* I' @; [ l
- #include <malloc.h>" {( X! H* Q4 s: L7 Y
- #include <sys/types.h>
0 R0 _$ g9 H4 Z' T* d - #include <sys/stat.h>
. G8 f& ~- r- w' f$ P - #include <sys/ioctl.h>
' Q5 Q2 P0 H$ l3 X4 \0 L9 c- W - #include <stdio.h>
5 c- o) r$ @% g6 _0 x: g7 Z, [ - #include <string.h>
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- typedef struct {' y, Q- Q. i4 z! u# f6 a4 I
- unsigned int e2prom_cmd_sub_addr;
K1 h0 m$ C3 F1 M - unsigned int sub_addr_count;+ j- ]" u2 j6 h) O7 z
- unsigned char* e2prom_cmd_data;
! J: P% J/ z6 `4 B; x# j, T7 ` - unsigned int data_count;
+ }! \7 G2 G! ^+ B( \/ |1 L) v - } e2prom_s_cmd;0 I; D# I4 u$ ~% y$ N/ Z
' G s$ A: ]+ _/ y4 X- #define E2PROM_CMD_READ 1
% ]) U/ @9 a3 t6 l! p5 c+ I; \ - #define E2PROM_CMD_WRITE 21 j8 E( w, m- I$ L9 J! z% E0 F
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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7 i3 b, S3 {3 y i- static int readparam(unsigned char *mac, unsigned char *stbid)
) I e) ?8 u& S7 p2 }9 K. t* h3 u/ J - {
9 q8 {- @; B, G- `$ U1 a; V% d6 q - int fd, ret;
: Z3 t6 z$ Q2 r6 {! u8 i - e2prom_s_cmd arg;: J# o/ D L4 l- C$ n
- unsigned char buf[0x18];$ u7 j% K+ a7 U+ u) \0 m5 f
- # d) h6 {6 G, e( @" I" x. }2 j
- fd = open(E2PROM_DEVICE, O_RDWR);1 `3 k8 F2 k" O& K2 Z5 G% L4 U
- if (fd < 0) {
, e8 V' G. w, _* O9 S - printf("Device %s open error.\n", E2PROM_DEVICE);0 n& B S4 E/ e
- return -1;
+ B- B* a8 }3 J- T, C - }
% m; R$ t6 N1 f2 S. o% g+ R& ^ - arg.sub_addr_count = 2;+ _$ x! R' W& [( q- L
- arg.data_count = 0x18;
% N' x! T6 n) {0 o - arg.e2prom_cmd_sub_addr = 0x290;
: O" v2 [8 w8 w) X: V0 R - arg.e2prom_cmd_data = buf;$ T. P" C9 @3 [
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
' O- S: _# M/ Z! F4 J# { n - if (ret != 0) {# x, i C9 c# m0 l6 j! h
- printf("Device %s read error.\n", E2PROM_DEVICE);: P' M, {! s2 `
- return -1;
y2 T# c% D1 ]+ I' E - }
9 L8 p6 [8 ~8 x% M9 J% [; ? - memcpy(mac, buf, 6);
- Z! e% J/ v6 L" S2 n% Q - memcpy(stbid, &buf[6], 18);9 V4 A, e: h) J$ |! ?, y# e3 Q
- stbid[18] = '\0';& v- i/ n& C' U
- 7 j" j) {) S8 J
- return 0;
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# X! a7 Y7 ]4 O6 Z; C; K- static int writeparam(unsigned char *mac, unsigned char *stbid)1 Y' O& a3 e& X3 m
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- int fd, ret;; D* N Z$ P( C
- e2prom_s_cmd arg;# c& Q/ M. I- I
- unsigned char buf[0x18];
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- memcpy(buf, mac, 6);# A8 |! v7 `8 U* r3 U7 O6 \
- memcpy(&buf[6], stbid, 18);: i6 N2 ?! ^( S4 J9 Z% T
- fd = open(E2PROM_DEVICE, O_RDWR);
$ W, @9 Y* y6 ]3 m( s* r+ E - if (fd < 0) {% l4 Y# g3 p* u: W# E
- printf("Device %s open error.\n", E2PROM_DEVICE);. C3 t, n0 @2 }2 W
- return -1;7 F- f% U8 C. N; k
- }
4 Q, l; y9 ]& [. u - arg.sub_addr_count = 2;
% g5 {: M* [4 ^7 x- Y% G7 ~& y) U - arg.data_count = 0x18;5 E. u% T r1 C* D
- arg.e2prom_cmd_sub_addr = 0x290;
5 _9 j3 y ~; J - arg.e2prom_cmd_data = buf;! W) d* n7 @: O2 Y" ?1 D
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);2 _9 C* ]1 s2 {! ]8 a& H7 o
- if (ret != 0) {
$ P1 A& _2 I% u" \; J1 f - printf("Device %s write error.\n", E2PROM_DEVICE);. r* h% N0 [1 U M# J# v
- return -1;% g. ]; f! |9 r& Q# A! t
- }
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9 s0 C+ S6 l3 w, [. r, P* J3 c- return 0;
( z" G7 p' a- D0 q: b - }
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* M6 H/ \1 S$ t; A- int main()0 f1 R9 ]* L8 n! q
- {
1 o7 W- k6 N v& @ - char c;
/ k; D' t$ s3 P% `: _1 `" p- i$ J9 d - int i, macs[6];9 x# ^9 y, L3 S' C8 ^
- unsigned char mac[6];" k% r. F+ o9 l/ M/ Q) Z
- unsigned char stbid[256];
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6 R5 h. y' F0 b7 E5 E- if (readparam(mac, stbid) < 0)
6 |! Y. F6 O2 i5 p/ ~ - return 1;3 x* r) j% K: O) z
- 5 `( ?3 s% D" a, O% g
- printf("Current parameters: \n");
" Z# {4 I' p$ J. ]6 Y. N8 u1 R2 j - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); V$ S2 i9 _( A9 v8 V4 _: d4 l
- printf(" STBID: %s\n", stbid);% N; v# P/ ~5 P
-
) p8 G+ M8 C3 P+ `8 L" h - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
& U7 ?9 ?4 V5 m - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {8 H" O) }: q' s& w" g& t
- printf("Input MAC error\n");
" y& a3 j W$ Z0 x5 L1 ? - return 1;
$ u9 X/ @& U9 X - }
7 q3 j- n! k p' k+ X$ m/ R" G) } - for (i=0; i<6; i++)mac[i] = macs[i];( ~! U. W2 d: X
- printf("\nPlease input new STBID: ");
3 Y6 {0 l8 {9 T0 T - scanf("%s", stbid);
+ {' j$ O. | o! k k - if (strlen(stbid) != 18) {
0 B! X3 X" Y' a: e8 { - printf("Invalid stbid\n");
2 t2 C/ L' g, H - return 1;
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- printf("\nNew parameters: \n");
5 {1 U5 j. ~$ o- N - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);5 M' K; W; \& ^' w2 o
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");* e4 v3 z1 J9 w
- for (;;) {; N' m( f+ J, ]' |
- c = getchar();5 w' |; s2 k/ L' ?
- if (c == 'y' || c == 'Y')
/ q! F4 {- I0 f# b7 l - break;
2 W% S' l4 [& h" v: ` - if (c == 'n' || c == 'N') {
6 z }! E! r% M/ C1 N - printf("\nAborted.\n");! B/ G6 c* T4 _- I! ?
- return 1;
- w3 u+ z# y+ L( l& X& E - }; _+ o- E3 t C5 n% o7 p
- }
8 z7 t- F, v! P Z - if (writeparam(mac, stbid) == 0)
/ W" O0 a! Z* }* W+ a - printf("Parameters changed.\n");
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- return 0; z0 ^" j' _3 z
- }
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