本帖最后由 0522 于 2012-3-21 23:04 编辑 & V; G7 u# {. b% k9 O
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修改的代码早有了。到今天不会编译。
; a- T3 ^9 c- E7 `9 k+ k1 R# X9 i需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
* j) i* |# x* `/ W* `/ F - #include <malloc.h>& Z* W; `* G( v; |3 S
- #include <sys/types.h>1 d: J) r8 m3 U* p4 v1 U2 F2 W! `6 A
- #include <sys/stat.h>
0 M8 Z( V/ B% m) c" B/ K - #include <sys/ioctl.h>
& z6 M o8 y# |& M* b - #include <stdio.h>
$ S8 G" ?. \2 n- M# W6 O+ c - #include <string.h>
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- typedef struct {5 q% ^7 [, l& o7 w
- unsigned int e2prom_cmd_sub_addr;. l5 [9 M$ `! y+ T
- unsigned int sub_addr_count;
$ U& c/ ~1 B3 ?3 a; } - unsigned char* e2prom_cmd_data;4 x+ K8 L/ p- c9 U
- unsigned int data_count;% [1 f& }* x/ L) f
- } e2prom_s_cmd;6 G0 e& G9 s' m! j I) d4 D
4 d1 S7 u2 N; P( r: l3 z* J5 W$ v- #define E2PROM_CMD_READ 1
, V! q( K5 d% `3 e T$ p - #define E2PROM_CMD_WRITE 2
1 F& S" L; S: a1 U @8 m# a - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"4 Y1 f4 P) P, ]
/ s: h. k) Z( u' i' f4 [) _- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;# n1 J. _: D# y( \' B
- e2prom_s_cmd arg;4 h4 d+ S1 o+ F" e
- unsigned char buf[0x18];3 Q" i' v' x" X5 n
- 3 ^0 k- f8 w4 x+ k0 s
- fd = open(E2PROM_DEVICE, O_RDWR);7 f) [" \: d1 Y, K. F
- if (fd < 0) {: z* z1 I/ b/ {
- printf("Device %s open error.\n", E2PROM_DEVICE);
% F5 L6 K3 }" S7 }8 B% i7 C& L* h - return -1;8 X5 e; ~1 j5 q# l
- }
. Q4 ]' {) [5 w g6 R% w, Z - arg.sub_addr_count = 2; _4 s2 f9 S b. _# }! m# j( y2 x) K1 h+ n
- arg.data_count = 0x18;
: z% k [7 t- N, p4 ?( B - arg.e2prom_cmd_sub_addr = 0x290;
% \+ p5 {% L2 J: l$ l3 Z - arg.e2prom_cmd_data = buf;* f j Z3 S# j2 `8 Y
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
1 t) L# m3 u, @- }$ ]: | - if (ret != 0) {
0 F0 o' v- s* C7 B; O - printf("Device %s read error.\n", E2PROM_DEVICE);
a. `: u3 ?% |6 q4 ^0 {& E+ n - return -1;. d. O0 m8 [- w* @
- }
: N' ]. o9 v& X# l" X5 L6 U - memcpy(mac, buf, 6);* u' p8 B |7 T' o" z, k
- memcpy(stbid, &buf[6], 18);. J# g+ U: z, K8 c
- stbid[18] = '\0';. _& m2 w9 ?% I" y- g g
- ' l( x( b7 R. m$ @: O2 y
- return 0;8 f% l3 X9 K3 n
- }2 e/ }! J4 X+ L9 i" P& r9 y
- & H. {8 t7 [( q& u9 B% x: S
- static int writeparam(unsigned char *mac, unsigned char *stbid)
6 l) @6 N/ m! q1 \! T - {
& L7 l2 L, L/ M3 m - int fd, ret;
7 s1 q4 G, g0 Y3 j/ ~8 Z - e2prom_s_cmd arg;
/ y% r% o' I+ A* s' j - unsigned char buf[0x18];' E) Z) a1 @+ H1 ~) ~$ |$ B
0 r. z0 M4 I( _& H0 y( R- memcpy(buf, mac, 6);1 m! S7 A8 T' B' N# T: P
- memcpy(&buf[6], stbid, 18);4 f. r% p7 X: V1 Z) f- i5 S7 G' {: G# H
- fd = open(E2PROM_DEVICE, O_RDWR);, e& n! s, {* s: g5 D4 c) E
- if (fd < 0) {! {* s) J% d1 A0 i$ K
- printf("Device %s open error.\n", E2PROM_DEVICE);; T" K8 D, P! s% `4 L0 i& z
- return -1;! u" Y+ l5 P3 b0 J1 q
- }
( @& V8 X: ?- j9 F* [! \ - arg.sub_addr_count = 2;# k/ {& V% h2 s& R( v9 ~9 e) Q! n
- arg.data_count = 0x18;
- m+ W; F( I7 D ]" p% b - arg.e2prom_cmd_sub_addr = 0x290;: i- G% \0 M3 R! S' V8 E7 r
- arg.e2prom_cmd_data = buf; }0 d/ s) w& M" O4 B
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
/ c/ V9 J# N4 L - if (ret != 0) {2 z" M2 S9 o! D/ R9 `
- printf("Device %s write error.\n", E2PROM_DEVICE);3 g8 `( h: |9 ~
- return -1;
+ V" L$ F; e, c7 f/ E. H - }
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- return 0;
0 r8 M F% n W - }
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- int main()) n \0 p5 S2 T9 B
- {# Z) K7 ?3 B8 u3 [. Q
- char c;$ s0 V7 n& p3 Z, _. Y
- int i, macs[6];; g1 L: X- _8 y
- unsigned char mac[6];7 p, t9 o* r+ W/ i0 {. z+ t3 |
- unsigned char stbid[256];6 x J: G6 Y( l& I1 }1 @" V
- 3 o$ }8 o* r: v2 n
- if (readparam(mac, stbid) < 0)" o! M0 c- T5 W$ @' h6 _* h' M
- return 1;
- |9 c) V7 w% i( r
: y8 w" R3 l8 ?" I! X- printf("Current parameters: \n");
6 B8 `2 Y# p0 o9 @* N' l. d# u - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);# f. }% B% {* Y5 i- s, j; j) I
- printf(" STBID: %s\n", stbid);
6 o Q% x) a+ Z P4 I -
" Y5 H X7 b6 f# {2 v! s r! j4 @# a - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");* C0 C# F' b0 W1 M0 k! h
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {2 ~+ G6 r0 p% j. _8 m, n
- printf("Input MAC error\n");
" Y- z& W. X g5 G X - return 1;7 \3 S, ^7 Z5 u) e* _
- }
* P* K5 j5 Z; }. t/ E - for (i=0; i<6; i++)mac[i] = macs[i];% ]" z. G4 \; v. a
- printf("\nPlease input new STBID: ");8 Q" g" O4 H7 f" Y) N. `5 A
- scanf("%s", stbid);
u- I. l% a8 l* Y3 ] - if (strlen(stbid) != 18) {
3 ^/ ]" e2 ~) S' S. ? - printf("Invalid stbid\n");3 m, g0 u0 ^. P: d9 p. q4 d
- return 1;
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- printf("\nNew parameters: \n"); P* }0 W/ n" h j7 j* M
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
5 r( Z- N& b( A2 x Y7 ? - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
* p F9 I% V* I( N% ? - for (;;) {
, ]( {7 M5 g) T; D# `( z - c = getchar();9 t0 ?( G" C1 t+ k/ r M
- if (c == 'y' || c == 'Y')
+ E5 x3 u3 v1 X; [4 [4 t - break;, J' r, X5 `( |% ~4 r) O
- if (c == 'n' || c == 'N') {
& N' U# I1 F& I8 s$ @ - printf("\nAborted.\n");3 p& m4 A( s- k% f, n$ v9 R
- return 1;
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- }
1 C9 D; Q" l a - if (writeparam(mac, stbid) == 0) 9 q* w7 n& a. q! m9 Y$ [
- printf("Parameters changed.\n");
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- return 0;
( i) o* j% X" |( `4 J8 Z# M - }
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