本帖最后由 0522 于 2012-3-21 23:04 编辑 : k3 }: m' M/ A6 P! h
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修改的代码早有了。到今天不会编译。: E% K2 u C) H
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
* O3 c4 Y1 a F, X2 j - #include <malloc.h>
3 f' N9 F: ?4 S - #include <sys/types.h> g( Z: [: ?" ~/ l) x
- #include <sys/stat.h>
1 y- f" L4 d. Q. b: X" e - #include <sys/ioctl.h>
1 D! S& ^# {0 [. P. b1 w - #include <stdio.h>
8 w' j, N9 L ~% Z5 C - #include <string.h>9 o4 s' ~) j/ h8 o Q
$ L4 X* M' R {! D, m: x- typedef struct { C5 O% S# K) j, ?, J- P
- unsigned int e2prom_cmd_sub_addr;: K+ V; G f6 @: b9 k4 _
- unsigned int sub_addr_count;
2 c2 r3 B' I, t - unsigned char* e2prom_cmd_data;" q% K( z) N# [. I0 k5 l6 a4 \
- unsigned int data_count;* N* ^, I* m6 f, j
- } e2prom_s_cmd;- }- F( B) T; S: @
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- #define E2PROM_CMD_READ 1( \0 m( [+ s7 C" Q4 K6 x! Q* E% c
- #define E2PROM_CMD_WRITE 2: \3 s3 w- r9 v. e
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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3 P- U! q& {- Z4 k( d0 I1 o$ Z- static int readparam(unsigned char *mac, unsigned char *stbid)
7 t& y" }) B4 Q2 H0 h, b# O - {
* m0 \. j' t( m/ \' G2 ` - int fd, ret;
k2 R, {6 G3 @/ i# P - e2prom_s_cmd arg;
7 U/ Z9 X, X! D! B2 w2 H - unsigned char buf[0x18];& J8 s1 v( G% h
! i/ H8 V! c5 i, Q& n- fd = open(E2PROM_DEVICE, O_RDWR);
# k6 q# ~! R8 L# C - if (fd < 0) {
" I/ t. v, `( u$ }7 v2 ~ - printf("Device %s open error.\n", E2PROM_DEVICE);
C* M) P7 k4 R- d: ]6 v2 w* J - return -1;! L8 x% U* S6 m, d
- }
; l) u. r( v8 d# D* x - arg.sub_addr_count = 2;7 ^! |. ~( ?. e
- arg.data_count = 0x18;) B4 E5 E" k6 L) g( t2 Y7 `
- arg.e2prom_cmd_sub_addr = 0x290;
, l7 ^3 P/ f8 G( }/ y - arg.e2prom_cmd_data = buf;5 x7 @8 z7 {" `0 ^( n% ^
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
: t O: i+ q. V$ v - if (ret != 0) {
7 h' S3 ^& V% E& K6 _* f - printf("Device %s read error.\n", E2PROM_DEVICE);
& F* K8 P1 m2 }# L - return -1;
8 e: i8 P" O& g) ]7 ] - }
. U# a1 q4 U( k( _- R6 ^ - memcpy(mac, buf, 6);7 h0 H; f. ]4 I7 H
- memcpy(stbid, &buf[6], 18);* ] N- H- Z% B; W4 p% g
- stbid[18] = '\0';
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- return 0;& Z4 r2 n( Y' Z" e* j
- }
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* M- i6 y9 k# L* d- static int writeparam(unsigned char *mac, unsigned char *stbid)/ d! f2 \+ U. e
- {
8 q( [4 G4 p1 V - int fd, ret;8 S5 R: `# x+ R
- e2prom_s_cmd arg;
4 l- y' Z A4 T I9 B# w+ S. C P - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
' ]+ R$ a W* T4 s' t. c - memcpy(&buf[6], stbid, 18);
h' l4 w j. I - fd = open(E2PROM_DEVICE, O_RDWR);4 `: u5 p9 Q# c8 X [7 v& _' \, G
- if (fd < 0) {
, H5 H0 S8 q& N - printf("Device %s open error.\n", E2PROM_DEVICE);
/ q4 |* z5 U& E - return -1;8 C& F/ b) g- {. h
- }
% w8 p; C- h" D' ^ ]8 I6 g8 @ - arg.sub_addr_count = 2;& [9 `0 K8 p6 L c) s: O
- arg.data_count = 0x18;2 `- y6 ^+ u; m2 q! S% h
- arg.e2prom_cmd_sub_addr = 0x290;
. g0 t+ C+ U# ] - arg.e2prom_cmd_data = buf;
' E( a% M! K. U! w* k. ^ - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);3 o' b% R- v0 L( {# ^4 B/ _
- if (ret != 0) {
, v: W: w5 A: N - printf("Device %s write error.\n", E2PROM_DEVICE);
, ~* E6 k5 U3 b2 L - return -1;
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3 h: M8 S' i5 S- j- return 0;
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- * k# Q9 v1 c% B" H2 ^# |
- int main()' b7 ]$ t4 x: {3 U8 ~1 n+ o$ F
- {
4 ^6 x# J# e/ W4 t - char c; ]3 i( `$ [+ O- X& c
- int i, macs[6];
7 {0 u8 c/ q2 y& I( O' C* c, y( p6 s/ _; s - unsigned char mac[6];
: }- x: g6 ~- A' \8 o0 t - unsigned char stbid[256];
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- b9 \: ^) r5 q; I( d& e ^- if (readparam(mac, stbid) < 0)* L1 G. W$ \& |* C7 N; m! |- `
- return 1;
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, \$ |4 `. [( Y0 s" d9 ^- printf("Current parameters: \n");
2 ]/ \2 x+ ~& h/ X3 f - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);- p& j: U2 J: s; _ M
- printf(" STBID: %s\n", stbid);
& V* j; N% L3 t1 G$ X. I -
! p7 y3 ~* [% K; f* Z3 M0 } - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
, i0 [3 z3 N, Q9 y' r" L) n) i - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
/ K P8 R$ W' W8 T. |! f6 ` - printf("Input MAC error\n");
0 [* j# W6 e* h( ^8 N4 Q2 g5 B$ [ - return 1;! [: p. m! ~ f2 x# e. n
- }
7 X. o% s2 d7 d - for (i=0; i<6; i++)mac[i] = macs[i];/ B; A& E9 C' D: I) U& k
- printf("\nPlease input new STBID: ");% H( {& d0 u$ P# l. S9 a
- scanf("%s", stbid);
# w5 D M3 i# N - if (strlen(stbid) != 18) {8 L6 g! i* z$ R( C9 y3 o
- printf("Invalid stbid\n");! @# U6 J# n: J1 p& S3 ?
- return 1;$ V$ n0 Y! C, n2 I
- }1 q5 N8 Q; R/ ~# ^
- printf("\nNew parameters: \n");4 {4 }+ p3 T$ O7 @
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);; u* r1 R; g5 V3 q# V8 u
- printf(" STBID: %s\n", stbid);1 f. n: `& v* R. x2 c/ U% t
- $ ~: ?) A- J& u: V1 u& [
- printf("\nDo you want to change paramemters? (y/N) ");+ z* Z! ~8 F" F% k1 L
- for (;;) {$ A. d6 z) E0 u p) G
- c = getchar();
# f, G; r) L! ^& \: e - if (c == 'y' || c == 'Y')/ I" O4 A' _' S+ `
- break;/ r( D" }1 p9 @) x0 `3 T
- if (c == 'n' || c == 'N') {' P8 j5 h/ R5 Z9 K
- printf("\nAborted.\n");
8 E0 w* [. V. v - return 1;
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- }
+ I+ ^2 B2 S* u; P* F - if (writeparam(mac, stbid) == 0)
; A# Z7 S/ d3 ?; G$ p - printf("Parameters changed.\n");
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( H# G4 A$ y6 K& B: _4 ]" k' z% Z- return 0;
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