本帖最后由 0522 于 2012-3-21 23:04 编辑 ( ?" @6 Z0 a) Y3 Q
4 G/ g7 q8 G+ u! U' e/ G# M0 `# e3 D5 D- y修改的代码早有了。到今天不会编译。
6 g# H) l! l" y: p! i$ M% m* W需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
+ K( A1 Y0 {7 u+ |! B3 k - #include <malloc.h>5 E7 h9 x0 `7 ^ D: p
- #include <sys/types.h>2 X( ?0 f; i1 }" J; R% d
- #include <sys/stat.h>& k/ d; t7 d6 f4 P* z
- #include <sys/ioctl.h>* X( z/ _, e9 V8 m- R
- #include <stdio.h>7 c/ N, ^8 V9 c; p; H) L: m
- #include <string.h>! l( y# @, ]! w( \1 m) {
% g1 I7 r. L0 t/ _6 i- typedef struct {
# ]( b5 d( x, @7 F - unsigned int e2prom_cmd_sub_addr;
w- ^& `! ~ p4 u - unsigned int sub_addr_count;) `- q3 w$ n4 a* [. Y* \! ?: H& f
- unsigned char* e2prom_cmd_data;
7 y7 B" w7 L1 c# ^' i0 G+ }3 V5 ~ - unsigned int data_count;
7 i6 U( m, s7 z# C! V3 |& T. S - } e2prom_s_cmd;2 ?% [+ [) W9 f4 o# S( W
- ( Z$ H. z$ `5 u6 E
- #define E2PROM_CMD_READ 1 O/ g$ p* ]# j% F3 M8 V
- #define E2PROM_CMD_WRITE 2
% G- D2 T7 Z! s0 v" f - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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! }4 o9 }8 j$ Z6 O r2 ~- static int readparam(unsigned char *mac, unsigned char *stbid)
U7 J; C9 n$ B - {
' i7 L% j" N5 B* }7 i1 N: q# p - int fd, ret;
8 j7 v3 ]( x% i' g* d - e2prom_s_cmd arg;* H6 ?- E: Z1 l1 z. c# T
- unsigned char buf[0x18];. n4 [. ^ y- s# v. }2 @, I, h
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- fd = open(E2PROM_DEVICE, O_RDWR);
5 e: E$ w7 m; F, E3 E - if (fd < 0) {2 L- G) V ~( N; \" K4 o3 J3 A, V
- printf("Device %s open error.\n", E2PROM_DEVICE);
$ w$ P; c5 Q' ?+ Z/ A* E - return -1;
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- arg.sub_addr_count = 2;. @8 C6 f# e( X" M2 \; t& k
- arg.data_count = 0x18;7 t# r v8 R+ ~+ v. O- Q' @/ R
- arg.e2prom_cmd_sub_addr = 0x290;
2 b! l4 w6 F/ O! D2 J - arg.e2prom_cmd_data = buf;$ ? T' Z1 _, y) A1 s" G
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
) N$ `* s0 q; f! Q( g: \* ?! J - if (ret != 0) {
# h$ G2 U5 h& R - printf("Device %s read error.\n", E2PROM_DEVICE);
+ E& T1 \0 w/ ^5 G - return -1;
+ W7 ^5 o& ]0 m; b, ]8 M - }5 e7 f: a" N( h* y9 ?
- memcpy(mac, buf, 6);% `7 ?) k6 x% w5 [; }
- memcpy(stbid, &buf[6], 18); ?" [0 A/ K# R
- stbid[18] = '\0';' h8 v: b9 J6 |! L+ e6 q" O
7 h) t* o# R6 d- p- return 0;) C" \# u2 I. j# ]6 b: V
- }2 `: n8 v3 C/ V
- & e. g$ U+ @- H
- static int writeparam(unsigned char *mac, unsigned char *stbid)& C& L N$ `+ i9 m& Q& }
- {: z1 q) P* W1 f! q( A: }
- int fd, ret;/ g3 [3 a% A1 e2 F) g5 ^* f, E
- e2prom_s_cmd arg;8 s1 F. x2 M. @9 V
- unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
( E# w. c" i& ]+ J$ J- N4 W8 ` - memcpy(&buf[6], stbid, 18);
$ O% x2 x& X: R; I" k9 Y - fd = open(E2PROM_DEVICE, O_RDWR);) i' B9 H3 P, J& Z: Z: S
- if (fd < 0) {, F$ }* E4 H' W7 B/ \& Q5 n; Y! V
- printf("Device %s open error.\n", E2PROM_DEVICE);
- {$ C7 O8 f# Y& }! D# Y! S - return -1;
2 ^: M0 T/ a$ Z: s `9 e - }! ~! U5 o$ V j
- arg.sub_addr_count = 2;7 A8 k( _# T' c0 I
- arg.data_count = 0x18;
: T! o, g' y( m2 F' ^- G - arg.e2prom_cmd_sub_addr = 0x290;
' t0 n0 E$ c! Q5 Q - arg.e2prom_cmd_data = buf;
0 B4 S2 W6 P3 _% Y - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
. J: l8 P4 W2 _8 o- X. y' x4 X - if (ret != 0) {
' [$ \6 ?5 g3 h3 ~: \ - printf("Device %s write error.\n", E2PROM_DEVICE);
! A% {7 s8 W( Y5 P# | - return -1;
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* j) L5 Z' A5 `4 y' Q2 n6 X- return 0;
; P. k* A4 n D1 P, ^# F- G. D. C - }
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- int main()0 J+ E m# f0 s3 U8 @8 X
- {
* q6 \- D2 O/ J( z; W, p+ I - char c;
" ?# h5 p. v2 u2 x) Y: c - int i, macs[6];+ L+ n5 M& j# M) Z5 l
- unsigned char mac[6];0 \5 T1 P5 M. c1 O8 `& z8 f8 o! }
- unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)6 k' K- r5 x" u G1 Y4 b- s' A
- return 1;
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( A5 E$ |- Y5 S+ x+ n0 K- printf("Current parameters: \n");( l! E# U7 L2 q2 O0 p/ u
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);% f* S7 d6 K+ m" }
- printf(" STBID: %s\n", stbid);: }+ v/ O" e: h7 I, t0 E7 m r/ `
-
2 v( Z. w& M* x2 ?5 i7 i - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
8 w# B7 J/ ]! y3 y4 ^/ `* S* }. ` - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
% l0 F6 T2 \9 h: R' W - printf("Input MAC error\n");
/ w4 R3 u3 b1 l - return 1;
+ y. l4 ], j5 M/ p - }
( f0 l* k g* A q. j - for (i=0; i<6; i++)mac[i] = macs[i];
( e, @; ?7 K" z - printf("\nPlease input new STBID: ");
+ a, d# k6 h; J - scanf("%s", stbid);6 |' C" u% P V# i3 k8 e5 O
- if (strlen(stbid) != 18) {3 O1 Y' x- l1 Y- e0 q I2 ~6 G
- printf("Invalid stbid\n");
0 e, }5 F7 P0 p; q6 a1 Y - return 1;
/ z4 Q4 y: I; W# R) X8 h: M& u - } r {3 R- v4 S; w# z( ~0 W, c
- printf("\nNew parameters: \n");( `9 D$ R3 q6 k+ U9 l2 |
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);: B; s, _# r9 `; f. C
- printf(" STBID: %s\n", stbid);% n3 T1 |7 s+ |7 \5 e$ J; @4 g: D
- 6 A6 [- d! T3 @7 Y4 D
- printf("\nDo you want to change paramemters? (y/N) ");
9 J5 O- k( _9 ~/ x) ?- W. h - for (;;) {
0 c1 N) e% X' Q1 [ - c = getchar();- Z; ^* f; O1 {
- if (c == 'y' || c == 'Y')3 L# n6 r& i" v, A& K
- break;% E, y6 r7 A0 H& n! Y* q) B( J! K) O
- if (c == 'n' || c == 'N') {
0 g, T4 X) C' u& L- P: x. ~! E - printf("\nAborted.\n");6 X- m: w; b5 a: l# |
- return 1;
" \7 O! |: K) } f4 J4 `8 d9 { - }
- |+ W6 y' ?# ]/ [( T - }
8 R, r( q% O* m - if (writeparam(mac, stbid) == 0) " L( d$ E' X; I! d' e5 M/ p
- printf("Parameters changed.\n");& C, Q' m; c! F1 A; l: g
- - V. r# c) s/ R+ z) [3 Q2 A, ~
- return 0;
9 ~( q0 T! B8 m" |% F# M - }
复制代码 |