本帖最后由 0522 于 2012-3-21 23:04 编辑 3 Z# p4 S/ V4 O) c9 s0 k
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修改的代码早有了。到今天不会编译。% A4 U. U- ?2 F& b7 Q( n
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
7 a, P0 `+ b/ U3 w( \- M" n - #include <malloc.h>; l6 O! w+ I( p" o! D8 F1 G
- #include <sys/types.h>
/ r' N: ~( K0 w+ ]- c8 P - #include <sys/stat.h>: u2 z3 ]# K+ n7 j8 L) `
- #include <sys/ioctl.h>
& S0 c) _' Z% x( {: r; H - #include <stdio.h>
+ s5 ~" ?1 t; g% b- F& [ - #include <string.h>
# D* h q+ R' l7 u2 h
2 f. Q8 m' v% o! { i7 _* R! n- typedef struct {
: G% k$ ?' }# k3 k* _( n - unsigned int e2prom_cmd_sub_addr;4 g! Y. O, v- K/ u u6 ]
- unsigned int sub_addr_count;
! T& H7 R% s; ^ - unsigned char* e2prom_cmd_data;! ?. O. H( m4 N4 m
- unsigned int data_count;
r& X4 {% W9 I/ x - } e2prom_s_cmd;0 C/ B2 ? I# F7 w3 H1 z+ k. V
# I. W: B( P5 h$ N# Q) Z* ]. B- #define E2PROM_CMD_READ 1
& |# h* t7 S C }$ J9 ? - #define E2PROM_CMD_WRITE 2, i/ H: M- I4 x5 h. f1 F# @% ^
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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9 m+ C' {/ y, l2 b# U9 q- static int readparam(unsigned char *mac, unsigned char *stbid)
4 h; z4 L2 J- @1 z3 s+ o - {
0 Q4 z9 T' w1 P2 V! I - int fd, ret;
3 w. y& @: y# ?; s$ C" \# J) S3 i - e2prom_s_cmd arg;
0 Q8 R3 N7 }" G - unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
, u1 @+ X# b3 t3 j - if (fd < 0) {7 K# Z7 z; `7 x! t2 L
- printf("Device %s open error.\n", E2PROM_DEVICE);4 H1 G+ v- |2 Z1 ] Y9 G
- return -1;
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- arg.sub_addr_count = 2;
8 R3 i. q- k( Q4 W" ? - arg.data_count = 0x18;
. {9 u/ v' o+ N5 g/ E1 z - arg.e2prom_cmd_sub_addr = 0x290;
9 U% ]( P# c# g4 K* a. _8 T: {& k, Q - arg.e2prom_cmd_data = buf;
. r7 k8 K7 M1 Z, E5 J; L6 z3 j - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
" s1 y1 f# O4 A; k - if (ret != 0) {
z$ W& Y+ O+ o2 n. a - printf("Device %s read error.\n", E2PROM_DEVICE);# @6 [6 b! ]- p6 O0 p% Q
- return -1;
7 v( Y8 Q9 E. Z - }
: a/ ^# w! C# I/ H - memcpy(mac, buf, 6);) r+ {! ^0 g* y2 [6 l4 i5 ^/ H
- memcpy(stbid, &buf[6], 18);9 Y- T1 L1 B8 K5 `4 A3 {
- stbid[18] = '\0';
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! I8 o0 F2 Y. n1 W- return 0;& n, `& b& S4 A9 \& W% `, r t3 T
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
0 T5 a) ~* ^* a# i6 l$ w - {
% P/ b" s4 y! `, H) Z - int fd, ret;
& N4 G0 T0 T9 h5 p - e2prom_s_cmd arg;
# ^. x! H" |$ C8 f$ `* o" n - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);. M5 N! D$ v0 ]4 J, G# U% }
- memcpy(&buf[6], stbid, 18);
D2 Y6 p- Q9 t# A; s# C - fd = open(E2PROM_DEVICE, O_RDWR);0 j6 U' C$ B( W P" Q5 ]
- if (fd < 0) {( ] C, p+ R* I! X/ ?! @1 T/ |
- printf("Device %s open error.\n", E2PROM_DEVICE);
1 G- e0 s8 B7 @( o' U - return -1;
- P9 w4 y, K$ [: V* F7 W - }
4 e( k2 G# f1 r: W - arg.sub_addr_count = 2;% n& C2 f' z- i
- arg.data_count = 0x18;
* r# S8 Z' G( D0 _) _& ^; h - arg.e2prom_cmd_sub_addr = 0x290;- |0 @" S* n7 t) H. U# ~* r
- arg.e2prom_cmd_data = buf;2 Y6 X/ S0 z! z- X! E0 x7 A+ L
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg); A; [! K+ ]* Q u: j
- if (ret != 0) {
1 c8 r) S. F- C3 Y) S% @ - printf("Device %s write error.\n", E2PROM_DEVICE);
9 e5 ?' b1 O6 w7 o7 B7 P% F4 x - return -1;4 z! H9 r G5 b5 x# Q
- }: b$ i, O" i, o% _" q% E' _
% ?+ ` j( b% r2 | n- return 0;
* W3 ~: E' b/ D" b6 w0 | - }
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- int main()
# h. V0 ^& N! y f* r - {' q ]1 ^9 i/ W2 m
- char c;# B0 M: O- l. J3 s) C, {" W# m
- int i, macs[6];
9 d% V; ]0 V: r - unsigned char mac[6];
. y) [: D5 K1 f! l2 t/ Q0 C - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
d9 v8 D, g. c# _0 @. `1 v - return 1;. ]1 M+ H- Y1 \
- ' U9 G4 v7 x. D5 Z. ]6 `
- printf("Current parameters: \n");
& }( V; @/ p ^+ ] - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);( D a% i: w6 ^! \+ Z( A/ J! L
- printf(" STBID: %s\n", stbid);7 i( |8 K3 u7 q. c8 ^7 ]% D6 o6 d
- . A7 O3 R' |0 U, k9 K
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");; m! l* {6 y( {( Q, K5 S3 j
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
( J5 B8 m5 O! }0 l. [1 q/ x/ G3 T - printf("Input MAC error\n");5 `1 K. `1 g+ D/ b2 w" u5 ~
- return 1;+ S, ^/ g+ K( ~1 g/ A4 U
- }1 }7 e5 O' R4 d }; b- S8 q
- for (i=0; i<6; i++)mac[i] = macs[i];) [5 _( C( }/ ~ { f6 w; e' y
- printf("\nPlease input new STBID: ");+ j" n7 N- [7 E, Y
- scanf("%s", stbid);
: O( \ D4 d/ E) V% J& \5 { - if (strlen(stbid) != 18) {& Y; l* T5 J/ ]) |. U
- printf("Invalid stbid\n");
' v0 X5 p4 {( @ - return 1;
. D' e$ C: L, | - }
" c* k* E" I& M. K% F& F+ f' J2 ` - printf("\nNew parameters: \n");9 a# Y4 B5 Q, }
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
! a# x! }* P: `* a - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");# }* _/ G. X, q7 {2 H
- for (;;) {
4 @- x# r+ X- j7 r* N; H9 \' h - c = getchar();$ y; d7 j6 r9 W: I$ }' q
- if (c == 'y' || c == 'Y')
' l5 l+ I( g; U2 l( f5 t - break;
: m9 _' a$ a# `+ ~ ?8 f - if (c == 'n' || c == 'N') {
n8 M# d9 j3 Z6 J - printf("\nAborted.\n");
4 d( q" v1 S& @/ m - return 1;
# l) ]! c, ?/ P, H! s9 q" t - }5 r1 r! D* p! k' ?
- }0 W; w6 V0 x0 s4 Z5 O
- if (writeparam(mac, stbid) == 0) . S! U) |5 F# U
- printf("Parameters changed.\n");
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3 c- ~' J0 o( l- return 0;
2 T' Z6 O0 j* z# A6 v X( M - }
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