本帖最后由 0522 于 2012-3-21 23:04 编辑
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- _" n( \$ B# p3 \修改的代码早有了。到今天不会编译。
- R0 F+ Z) ^, I需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>$ I! K+ _; z; T. C8 F
- #include <malloc.h>: k, f2 ^- k! ~
- #include <sys/types.h>8 s( P2 @2 P+ e) N# V
- #include <sys/stat.h>
5 I$ J0 }% X+ a( D/ y - #include <sys/ioctl.h>* k' v9 \( m, H
- #include <stdio.h>
3 v' _, Y* A3 @. D/ K4 F' Z - #include <string.h> u# k5 @ l& U( M- \
- 1 _& A0 @+ l8 B$ {4 Q% z
- typedef struct {
8 g1 W9 o7 d3 \5 H( _+ t4 y# I - unsigned int e2prom_cmd_sub_addr;
% }. n3 o. U8 M/ I - unsigned int sub_addr_count;! c/ F5 P5 c0 p) {
- unsigned char* e2prom_cmd_data;
" g% M' B6 ?. V. z - unsigned int data_count;
: a: S3 F8 |- ], ?& T u - } e2prom_s_cmd; h% b8 V; x/ i! c1 x
/ } v" j1 R1 _( G, ^* F2 {- #define E2PROM_CMD_READ 1
: A* }; C9 |: x, R/ l8 O8 F - #define E2PROM_CMD_WRITE 2
4 G8 I& X5 J8 H: |) p2 X - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"# d8 J0 `1 ]5 X# h I
5 x! I& {# `. T/ [ x- static int readparam(unsigned char *mac, unsigned char *stbid)
9 G& x! u9 V4 g, j2 A0 U3 y - {# C1 b6 m, c6 J8 G" D
- int fd, ret;
& s, O5 X1 L4 m2 d* W7 l# p& R - e2prom_s_cmd arg; H: {4 D3 q% t1 j# K. j
- unsigned char buf[0x18];
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( Z* v; L/ g4 [8 @: A- fd = open(E2PROM_DEVICE, O_RDWR);: \3 `) c. X: }1 A+ {5 J& N
- if (fd < 0) {
- I) ~5 K4 y6 D - printf("Device %s open error.\n", E2PROM_DEVICE);/ C* f6 Q% D' T1 N0 H. ` v: o
- return -1;
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- arg.sub_addr_count = 2;* _" l4 S( p% O. S* R
- arg.data_count = 0x18;
* ^3 i" ?+ |1 J6 N4 f. p - arg.e2prom_cmd_sub_addr = 0x290;& B+ z) j i# R$ R' K4 i; l, f/ h
- arg.e2prom_cmd_data = buf;
0 t# Z5 q% P/ I5 u1 k7 l; ? - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
2 b/ e V" |4 x9 U( g; d - if (ret != 0) {
. e1 G( Y3 \' |! y& J/ t - printf("Device %s read error.\n", E2PROM_DEVICE);
: n; R' H4 `7 ?# r$ [ - return -1;
& w% A+ W m: P7 v - }
7 |/ P, Y) K' [+ b7 @% ^ - memcpy(mac, buf, 6);% }4 X* A- y) [- `$ @$ u8 j( r
- memcpy(stbid, &buf[6], 18);, W5 \* o" }7 B
- stbid[18] = '\0';, A- ^! v6 ?9 ~8 c, [- T
- ( K: @" g9 I$ j; V' i
- return 0; F8 d: P6 o( ^9 S2 [
- }4 w8 I2 l+ I% X/ y
- ; S. F5 n2 |3 Z$ l! U8 M% `
- static int writeparam(unsigned char *mac, unsigned char *stbid)
) }; D& S0 I( k, @* E) g, Y0 G - {0 L9 u/ g6 V6 z4 w. Q
- int fd, ret;# J) a$ ?) z/ O7 x
- e2prom_s_cmd arg;0 o; A8 u; A/ E3 {9 W
- unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
1 b" v% |7 H; b - memcpy(&buf[6], stbid, 18); u. N' e9 x# f8 L+ Q
- fd = open(E2PROM_DEVICE, O_RDWR);! u) w$ O+ v! W2 F; I$ R
- if (fd < 0) {
u; x' G1 p( I$ f - printf("Device %s open error.\n", E2PROM_DEVICE);/ Z. ?8 Q4 R5 ?! q0 v/ Z8 l
- return -1;
& m2 m4 I0 `7 c$ {: f& n - }
: T. N) w1 p6 K0 u, K - arg.sub_addr_count = 2;
$ [8 a2 A ~. z - arg.data_count = 0x18;4 R$ ]% a: }" o
- arg.e2prom_cmd_sub_addr = 0x290;' z& g6 ^ ?+ e5 k# Q. r
- arg.e2prom_cmd_data = buf;
. M. q( `' e' I% L$ {$ M7 j3 h( r - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);1 ? H! f) J. b* C
- if (ret != 0) {
' y* ]3 [) T* `: f/ ~ - printf("Device %s write error.\n", E2PROM_DEVICE);
* R9 g ~ U; r' e - return -1;
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' s3 L X1 ]% {/ t- return 0;
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F5 a3 n- h, _: h" f9 D- int main(): ^- P, W) g4 }
- {
/ [% e, r ]) u$ _' y5 g, a6 f+ B$ y - char c;
: v: v H" H: ?! e( j - int i, macs[6];# V' d" @: p8 [
- unsigned char mac[6];3 Q# Z( {2 w( l8 |8 n
- unsigned char stbid[256];& }2 ~) g2 u7 d2 c! v4 c( ^
- : H Q2 [! o; `* q( E! `; L3 R# @3 b
- if (readparam(mac, stbid) < 0)
* P5 f# K7 c% G7 Y/ _% b$ w - return 1;8 R0 \( C3 v2 o4 W4 t5 U3 q" m
" f: V V' @/ } H# w; N- printf("Current parameters: \n");
* b }" c4 X5 z - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
5 r( l( j5 U, y# p y% z8 ~ - printf(" STBID: %s\n", stbid);" `9 Q! s4 ]! M, I# P
-
, {. ]# y" ~# k2 L# l& o1 G - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
3 X! v/ K4 a! ]. R) H @: c - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {; ~" K+ c# ]$ M
- printf("Input MAC error\n");
: g2 q3 q$ N0 e+ w - return 1;" Y. S6 ]1 Q- W6 f" d* n+ [6 p7 W
- }
, P- W2 W$ J$ y: I+ Z: B - for (i=0; i<6; i++)mac[i] = macs[i];
! c7 `- P v# e - printf("\nPlease input new STBID: ");
) A" W8 m* b( m, I0 Z% B/ N - scanf("%s", stbid);
7 g v( {/ X2 X5 [1 D - if (strlen(stbid) != 18) {6 C9 ~$ J; B5 k/ ^& E
- printf("Invalid stbid\n");3 l( S1 r6 o+ u. B q1 R ^* P/ r& r
- return 1;* ^: w0 s( Y3 D$ b$ V- W' F
- }
' A/ p5 u1 M5 R. w - printf("\nNew parameters: \n");
* V0 u9 G; @) Q/ L1 z- C - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);! Z- Q" z' m- d8 \9 \+ |
- printf(" STBID: %s\n", stbid);& r' N* \& j, U
- 6 T( R( x# y# }" p
- printf("\nDo you want to change paramemters? (y/N) ");
8 Y% Q3 q5 b' [9 O - for (;;) {
, q8 d4 z; I# c8 w5 M3 F5 I - c = getchar();
6 C* P+ @1 _) n$ d; j9 ^5 ]! h8 `0 I - if (c == 'y' || c == 'Y')
6 }5 w5 ^# Y6 W" a - break;
: r/ R- \1 c4 n: R2 a - if (c == 'n' || c == 'N') {( i8 r/ ^1 X. a9 V, s% U
- printf("\nAborted.\n");
$ u6 ?( _7 Y" } - return 1;- e! s& y9 x" n+ ]' k5 e
- }
: f- z5 S9 X# ?0 m0 C- w - }
2 P+ N+ H4 C+ `" t8 ]/ S! p - if (writeparam(mac, stbid) == 0) % y0 O0 u Y& }( e/ N1 K
- printf("Parameters changed.\n");
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9 p9 t& ^* [8 U. w- return 0;
% H$ H% T& P) C" b6 j2 x - }
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