本帖最后由 0522 于 2012-3-21 23:04 编辑
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修改的代码早有了。到今天不会编译。
! [9 O+ q, K' z! ~, }需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
2 P# F2 P8 U/ T( {, c - #include <malloc.h>" h( ]1 i1 L7 e. n+ r8 x" k( [( ?
- #include <sys/types.h>$ G) q+ n) P% A6 g+ n/ a/ L7 X
- #include <sys/stat.h>
% t0 g3 s3 r, ~9 m5 K$ y+ e - #include <sys/ioctl.h>
/ y' i5 m1 r- L# ~1 U5 G - #include <stdio.h>7 k2 @( O: d8 S _3 m9 Y
- #include <string.h>2 {$ S( A+ T; I
6 h% s! {7 O. C- typedef struct {
3 S8 G, E: s* Y$ t% {' E1 p - unsigned int e2prom_cmd_sub_addr;
! x' F3 Y0 v0 s9 _ - unsigned int sub_addr_count;
, y+ Z. x4 k K8 `. R - unsigned char* e2prom_cmd_data;: y& @/ `; D- h; N; M
- unsigned int data_count;* T7 O3 f& _# s: h; c% J2 l8 @+ |
- } e2prom_s_cmd;
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" ]: s) o$ u/ c- #define E2PROM_CMD_READ 1/ U, J- _$ p/ A' T
- #define E2PROM_CMD_WRITE 25 i8 d R7 M' J+ T. g S0 G
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
- ~2 |7 @6 x1 S% ?% [! U2 M - ) W( g- m/ Y1 e# M
- static int readparam(unsigned char *mac, unsigned char *stbid)* M) V4 p+ X7 H( P O4 \
- {% a0 Y* @/ ^; @! K! f' p
- int fd, ret;
. p$ T) i# j: x3 X - e2prom_s_cmd arg;
* t7 F8 V* J4 I* B9 ~ - unsigned char buf[0x18];: ?$ z0 ?& C% I/ k
" y9 b6 ]# Z% V. A/ |- fd = open(E2PROM_DEVICE, O_RDWR);8 q1 P9 S7 `- [' G! t
- if (fd < 0) {
. q% A, g" P" Y# u8 U - printf("Device %s open error.\n", E2PROM_DEVICE);
$ o# @! A; k/ I6 }! w - return -1;
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- arg.sub_addr_count = 2;( \9 d+ \; {7 L1 v5 x* V `5 [
- arg.data_count = 0x18;( j' V0 u F; p. \9 A0 N! s
- arg.e2prom_cmd_sub_addr = 0x290;
& E; Y$ V4 i L5 _+ \ - arg.e2prom_cmd_data = buf;
# p3 `4 R% m! H0 A - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
% Y" a% z. r9 P1 k - if (ret != 0) {4 O6 @/ c9 ^7 N. B) L5 _) d
- printf("Device %s read error.\n", E2PROM_DEVICE);
! g$ Q. I6 O/ ~$ D5 N8 L4 v! D8 T - return -1;1 J2 H5 {6 x0 d, y; x9 V6 j5 Q! e
- }
3 a. \5 A, O( e1 C5 C. ~2 h! Q - memcpy(mac, buf, 6);5 s0 W) ^. r- I) G2 F, ~+ ^
- memcpy(stbid, &buf[6], 18);
9 e$ t' p2 N% o0 D - stbid[18] = '\0';
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- return 0;5 b& x- P( h8 N( w
- }) R& E# z/ C |, C; m
% i( l2 c9 k) H& K* X: }- static int writeparam(unsigned char *mac, unsigned char *stbid)
A n9 J3 z0 ]" b! N0 G: o) B& Q3 G - {
$ b, c( m1 f6 l5 `0 e - int fd, ret;5 [3 s& Y, x0 C, M( B* q
- e2prom_s_cmd arg;
0 E1 M5 R# N/ j* c - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
+ n+ w5 C$ W, Q4 [ - memcpy(&buf[6], stbid, 18);
( X8 a6 h: P- S( Z* \0 b - fd = open(E2PROM_DEVICE, O_RDWR);4 h9 ]( L V8 q; _6 W" e" R
- if (fd < 0) {& x" T) E' [: t! R) J/ i$ e
- printf("Device %s open error.\n", E2PROM_DEVICE);
) K" N9 k% x: N' ] - return -1;& Z9 F, S8 _8 {% j, t) w: x$ d
- }5 D; a! Q0 G, {
- arg.sub_addr_count = 2;
7 t* C/ n2 n+ Z/ U. ? - arg.data_count = 0x18;# \8 e1 }& _5 }7 [
- arg.e2prom_cmd_sub_addr = 0x290;6 F) A0 D5 p6 \. m* W' w
- arg.e2prom_cmd_data = buf;
4 P' h4 F% R8 C0 G* k% e - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);0 c+ r; V. a' q% s0 h9 b
- if (ret != 0) {
F% r# g# p5 `( T {' D; n - printf("Device %s write error.\n", E2PROM_DEVICE);* e+ W6 }( ]9 C2 u! Z$ |4 D
- return -1;# b5 F! G1 r9 |3 a" t& e1 F& Q
- }
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, i/ b; Z4 B7 G& l. n- return 0;" @+ g. n3 H4 \1 s6 e
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0 e9 f0 `! C- ?7 ~- int main()8 q6 R) ~% P+ a+ H
- {4 c9 T. r3 S4 K( ^/ ^
- char c;1 W' a+ H0 C* u% ~; F& N
- int i, macs[6];& C2 m' d }; F
- unsigned char mac[6];
' M2 k# j" k; S# Z$ V/ w' W - unsigned char stbid[256];& @% a2 K1 t: x1 B1 p$ I
- ) H$ M$ x3 x, { {, b9 b
- if (readparam(mac, stbid) < 0)
4 ^' k; Z6 {5 m3 {# b% k+ f9 ` - return 1;/ Q3 o- I- g' { f3 `
- 1 k" c8 k3 N* [0 F0 _$ o
- printf("Current parameters: \n");
# J; U- `' }+ L6 T. f7 `9 e - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);# G% l! k) O {" b- p
- printf(" STBID: %s\n", stbid);
& X# k6 [- a8 I% e. {9 g -
/ t* o+ r: T* X- Q/ y: F - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");# p3 X/ \1 i. q1 Q# K
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {8 _# t8 d$ g2 o$ r- L
- printf("Input MAC error\n");
3 K/ L+ @# @- g. |: B" E% { - return 1;9 m, L8 S& u; E8 _' j& f T( Q
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- for (i=0; i<6; i++)mac[i] = macs[i];
" l g8 `2 O8 @$ {# E - printf("\nPlease input new STBID: ");) B3 a1 I$ H" i
- scanf("%s", stbid);) m) e& p3 p" R% v0 y
- if (strlen(stbid) != 18) { t1 U1 d7 y F: V
- printf("Invalid stbid\n");
+ o* l t6 P q8 Q# r - return 1;
9 K8 I' v n3 @, b - }
) X$ }: i9 k/ j1 V; A - printf("\nNew parameters: \n");1 c- c1 h8 O1 Z; Q/ p% s7 u
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);5 A: p I. w5 j. D( f! V
- printf(" STBID: %s\n", stbid);8 v( u- K# {+ |# L- M
- 4 B8 c1 \2 w$ U' }0 T' A9 \
- printf("\nDo you want to change paramemters? (y/N) ");
. C$ T: F* v8 }" d" D - for (;;) {: ]+ V# z% t/ i* ~5 a' s1 U
- c = getchar(); S+ K2 S8 F9 a
- if (c == 'y' || c == 'Y')
) Y8 j) u: y5 N: M4 a - break;8 I) C5 `/ Q. G
- if (c == 'n' || c == 'N') {% K9 c& `9 j0 [: ^
- printf("\nAborted.\n");
2 w+ z# H. J6 x2 b8 e5 O; @9 a3 @8 ^ - return 1;3 P+ w. Y* S( @
- }
0 o* [3 u+ n3 |1 T' b @: F2 `) T - }
( y& S! b7 Q' _# C - if (writeparam(mac, stbid) == 0) 0 {7 l" J8 X' _" R+ V2 U; w
- printf("Parameters changed.\n");
# Z- ^* c6 y. `( a - k* t3 c6 a# `) x$ w
- return 0;: J& a2 w& c( j' h# Y
- }
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