本帖最后由 0522 于 2012-3-21 23:04 编辑
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w4 e1 y7 o! m6 W6 c修改的代码早有了。到今天不会编译。6 R- q4 l# O1 F' g
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>- n! X, G. I* G/ U. ]7 z
- #include <malloc.h>, J8 L9 z9 C: X# `, y( U, h
- #include <sys/types.h>/ k- l- O& z" v$ V
- #include <sys/stat.h>& `* N( N+ f7 u1 _
- #include <sys/ioctl.h>
0 z. t3 P) O; z" _2 ~. t - #include <stdio.h>
' ?! \1 M d, u/ v4 A - #include <string.h>
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- typedef struct {
8 }" A& ~6 P* g6 u/ a( X4 j( l9 y9 y! q# A - unsigned int e2prom_cmd_sub_addr;
" [( A8 J: z! e0 g9 @& T) u# } - unsigned int sub_addr_count;
( {! J& D. d! F: t2 i9 ~1 M, W! [- M - unsigned char* e2prom_cmd_data;
. w, Q7 }+ \5 C& V* M - unsigned int data_count;( e0 s$ c7 H8 `2 R. K/ ~, \
- } e2prom_s_cmd;
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- t% R" G# e4 C% |: [1 T8 {; Y- #define E2PROM_CMD_READ 1
% Z# {6 o5 O; d: D5 n2 A5 [ - #define E2PROM_CMD_WRITE 2! @0 H. _9 ^* m1 c& X/ R
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"- S. j; H) b# D# B5 b) E* T
- ! @ e6 D) Y! T9 e) _; D
- static int readparam(unsigned char *mac, unsigned char *stbid)
9 |7 j) G# E9 w - {
' e2 a1 m2 b% ~. @" g - int fd, ret;
! T* d: `. @5 T4 p8 k - e2prom_s_cmd arg;
) ^! D0 x! c1 A2 ?. y" } Y - unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
/ D5 O8 Q( N& W! c& f" P - if (fd < 0) {
% ]4 W/ B* m/ K4 s0 { - printf("Device %s open error.\n", E2PROM_DEVICE);* G& T2 S$ o% w0 C& O
- return -1;
$ J( m7 r! _( M+ S, M% S2 c1 ~0 Q! F - }
( H/ t0 |% K$ `' A* g; W" Y( ` - arg.sub_addr_count = 2;
( J" K9 o( {" \1 G - arg.data_count = 0x18;% I2 Y: [4 T1 u* E+ u
- arg.e2prom_cmd_sub_addr = 0x290;* m/ E, E% |' Q5 f) Q" |! ?% z
- arg.e2prom_cmd_data = buf;* b% t4 j4 X6 m* W
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);' k1 w- A) P: X5 W7 _, f& |
- if (ret != 0) {
+ n I6 ~3 U7 F; k - printf("Device %s read error.\n", E2PROM_DEVICE);
3 j% a5 d' J% S - return -1;7 M0 L/ Y2 O! Y, I
- }' i, K& {' T- D/ Q5 v i# J J
- memcpy(mac, buf, 6);: {& O. v0 J5 ?& r2 L
- memcpy(stbid, &buf[6], 18);
. w/ Y& \# C# H( e - stbid[18] = '\0';2 F9 g3 u( F! E$ _+ t
- / m c: \; m1 N
- return 0;
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0 e) v4 Y2 G6 j- J- static int writeparam(unsigned char *mac, unsigned char *stbid)
/ n: o8 {/ ^( @. i( F5 [& ` - {
( z8 q; c8 J6 T5 d+ C: R" L4 f - int fd, ret;
( s' n1 z7 e. @1 x6 o$ k7 ^. P - e2prom_s_cmd arg;4 Z* M2 X( z& h. J" ?$ r
- unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
1 g5 c& y# ]2 ?8 ]8 h - memcpy(&buf[6], stbid, 18);
2 t9 D% _ S% G6 Y/ _* N - fd = open(E2PROM_DEVICE, O_RDWR);
3 U* e: c9 R( P6 \& t- i# ~; s - if (fd < 0) {# ] O5 S9 V# u' y
- printf("Device %s open error.\n", E2PROM_DEVICE);- P2 z! s! J1 K- X7 m( d
- return -1;: ~4 T" n3 f# s3 ?. K# @
- }
+ J0 D0 Y: [7 B& G. l" R- _ - arg.sub_addr_count = 2;! _" i9 _. F# R+ x9 m
- arg.data_count = 0x18;2 J. J# P! L/ i. Q& T
- arg.e2prom_cmd_sub_addr = 0x290;
% u3 [# O H# Q, i0 ]) t - arg.e2prom_cmd_data = buf;
; v/ N. _ ~* M: e6 D/ E s, D - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);4 D, N! y! g) C2 \) O6 ?8 J
- if (ret != 0) {) @% Q% g8 `/ N9 ^2 u) N
- printf("Device %s write error.\n", E2PROM_DEVICE);6 N4 O: l7 Y/ V, P3 a
- return -1;
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- return 0;% U/ Y. v8 K$ z# S) W# {$ O0 J# v# `
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- 5 s9 \ T! \$ Y2 }/ H0 t: L
- int main()
5 e+ U& S% L. a - {
2 M4 B; E+ i/ m: F% A z+ X - char c;. c9 C m2 t% _
- int i, macs[6];( n2 W# Z `& [3 Y3 }
- unsigned char mac[6];
t- h4 q7 ~ z r! ^9 i0 ~ - unsigned char stbid[256];- q( V8 e! ~/ W' ]0 o6 F
- 2 g7 M& e5 w. g
- if (readparam(mac, stbid) < 0)4 j; b8 |' N2 G" Y' l7 Z) w
- return 1;
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- printf("Current parameters: \n");( T" ~% C- P& [8 h$ n# h
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);) \) `2 |- w# A1 N/ p% t0 A
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
7 w4 v9 Z5 r; B4 A- w' J }* I4 W9 f: V$ ^/ ~ - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
$ S4 @1 |" a8 k; Q6 h+ | - printf("Input MAC error\n");
& N8 c/ y# L8 m; g - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];1 C# B! d* @/ I+ I, ?
- printf("\nPlease input new STBID: ");
6 R9 P5 C7 L# j% ~" I - scanf("%s", stbid);
! G; C3 t7 C7 H: d3 ~7 b' a( B) P ?9 H - if (strlen(stbid) != 18) {
# s5 t' J' Q; m - printf("Invalid stbid\n");
, s+ @( R% ]7 f7 d6 N$ { - return 1;
' \$ q8 w& g% X$ k& z - }
5 D3 D' @$ \+ x+ V6 d - printf("\nNew parameters: \n");' l$ N- Y" y. T3 L
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);, t( Q9 x) H* t& H
- printf(" STBID: %s\n", stbid);
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+ c- m/ J- c, _) n) C- printf("\nDo you want to change paramemters? (y/N) ");2 H! i+ H7 k& w0 l
- for (;;) {
) E) M4 G F, g a1 A u - c = getchar();1 m+ r; Y0 A7 Y& B
- if (c == 'y' || c == 'Y')
; x2 @6 X) D6 u$ @7 K7 B - break;
7 c3 Q/ l) Y4 B, o+ N( o - if (c == 'n' || c == 'N') {
" D( @: A: C( h% S' U - printf("\nAborted.\n");
$ {$ W0 \ B7 ~ - return 1;
8 V# Z' H" ]% }! ]1 u - }
, [' _2 |; q6 }- d. R - }
* C3 \) Y$ a" n - if (writeparam(mac, stbid) == 0) ( S2 u. |/ z' ^, X1 q$ `. r# H
- printf("Parameters changed.\n");
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0 y* A1 [: k7 M) \9 d- return 0;. n4 O, E, Z W* C6 R1 m
- }
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