本帖最后由 0522 于 2012-3-21 23:04 编辑
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; x6 E( C( h; E3 X修改的代码早有了。到今天不会编译。9 B. `) H" ~3 p: H& W3 H
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
+ G0 d5 Q9 t9 i$ o/ D6 [ - #include <malloc.h>0 f+ L- X; j8 {
- #include <sys/types.h>
" D; ]0 d2 g; W% D4 ^# e3 `9 ` - #include <sys/stat.h>
% n9 a7 i6 ^+ | - #include <sys/ioctl.h>- I, w0 A! O2 ?1 ^/ G( v K
- #include <stdio.h>5 `, p6 }8 O- Y7 ~1 o; |
- #include <string.h>0 Z( G: n3 ?% h0 ?& K! o# d
9 {8 W4 h! V; M$ r- typedef struct {
. C, d* v* u6 P+ a! U - unsigned int e2prom_cmd_sub_addr;
* T; p0 U, N' u% k- C7 O' f6 T) Q- Q - unsigned int sub_addr_count;
, C( V+ r( M0 S$ Y. _0 c# u - unsigned char* e2prom_cmd_data;$ V4 r7 c4 a) ^' P9 {/ }' G
- unsigned int data_count;
) |* J0 v9 O( Y9 _$ N; X - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 14 Z1 f4 }8 t' j5 f
- #define E2PROM_CMD_WRITE 2- E n9 C2 J: u4 T3 f/ \' Y1 ~2 R
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)3 L9 {$ `( h- e, z
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- int fd, ret;
" R2 R- q1 W9 S! p- z% j - e2prom_s_cmd arg;) d8 A; c, p1 j! _* e- }+ ?
- unsigned char buf[0x18];. f% X% u! O7 h- f* S; c5 x
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- fd = open(E2PROM_DEVICE, O_RDWR);
/ W' O# w% f! w5 j6 K @. @: a+ x7 J - if (fd < 0) {
' I% Q& t; G& \7 i E) k+ f( q, p - printf("Device %s open error.\n", E2PROM_DEVICE);
% r5 E3 a' h2 I - return -1;
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- arg.sub_addr_count = 2;% P7 f# p c3 b% N k* N3 ?! o
- arg.data_count = 0x18;
5 `2 a# I8 p# t - arg.e2prom_cmd_sub_addr = 0x290;+ T/ E" d* k1 J0 Q2 C
- arg.e2prom_cmd_data = buf;' J& j2 u c2 N9 O4 i/ A3 r
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
3 f9 |4 a& t' u8 c6 L - if (ret != 0) {
* {7 [" K4 ]% c/ Z1 z7 L3 i1 m - printf("Device %s read error.\n", E2PROM_DEVICE);5 J! r' q7 t: t, l) u8 M4 @# {4 J
- return -1;
4 A- B/ m# M* o1 \ - }
: m! v% ^$ {& s! k5 x6 L1 U - memcpy(mac, buf, 6);
- g1 g( d2 k( C! K, x - memcpy(stbid, &buf[6], 18); h, d6 ~2 U7 }. N6 F0 X
- stbid[18] = '\0';
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2 x8 m! o! B" n# B. R) K: d- return 0;
3 M' s x P) I# H( X - }
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N" C; F: o8 a- static int writeparam(unsigned char *mac, unsigned char *stbid)% }9 n) r; ]" o" b
- {
8 R" |( ^+ ]& |- t - int fd, ret;
, T" y5 _7 v' }" I# v! V! V - e2prom_s_cmd arg;
F" p! y" T" J - unsigned char buf[0x18];" v1 [+ |6 y' ^$ h2 F* _
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- memcpy(buf, mac, 6);
( d% N+ I7 l, c: N - memcpy(&buf[6], stbid, 18);, e; s- d. e: E+ n
- fd = open(E2PROM_DEVICE, O_RDWR);
$ j1 R/ _% ?) U8 ~: C0 L; _ - if (fd < 0) {
+ r7 Q" ` |, g w# w4 s3 J: q4 } - printf("Device %s open error.\n", E2PROM_DEVICE);
6 I% I1 r- W5 Q6 a - return -1;
9 ?) p% j6 T/ L8 f2 p) s - }
' Z. d' U# V! I: C, t - arg.sub_addr_count = 2;
6 f* |. d; J) R0 t4 [ - arg.data_count = 0x18;; |) A) o; @2 K" M# Y9 A% K E
- arg.e2prom_cmd_sub_addr = 0x290;
' q! r: n9 u& S5 O - arg.e2prom_cmd_data = buf;7 S3 s/ C1 v5 e0 }. Z. S" f
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
! u' ]6 c. z9 ~- k x. G: I - if (ret != 0) {6 K$ J4 n$ |* a/ [3 `% {% V8 i
- printf("Device %s write error.\n", E2PROM_DEVICE);* q* C' k' n% H' ?
- return -1;
* a L' A4 l2 L- E' p5 [ - }
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# {% q6 w4 |3 m* }) X1 i+ B- return 0;
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- int main()5 K0 ]5 h) m7 J7 v* e( o
- {
- n2 C: n0 I: d. X3 E - char c;
* f( ]+ X; N8 ~0 C) { - int i, macs[6];
" ?- ^( \1 W6 y6 [0 S - unsigned char mac[6];
1 {# ?: O; `- n/ U - unsigned char stbid[256];+ r! z1 S) K+ j% G1 {$ M# O
; @ j! |- Q( x) F8 g% w- if (readparam(mac, stbid) < 0)- d$ H/ a) Y. O
- return 1;: {6 ~7 D8 i& ?( y. ]# [' O! O
- 3 u! O' {3 s! } I4 J/ ^( t4 ~
- printf("Current parameters: \n");
/ I! [1 r: M/ | |# a- l. R - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
3 B, I- W9 t% S - printf(" STBID: %s\n", stbid);
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2 r8 ]- A8 v) D; `4 k5 } - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
4 r7 I% e+ |) C; G q4 Y9 K - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
5 n. i4 O& n* R7 Y4 H& o4 ?' D& E! V - printf("Input MAC error\n");
: @* a. I( G3 y" ]; y - return 1;: L: }* Q2 L8 b3 ?3 Z$ V/ J
- }* [! l) F! D+ E' {
- for (i=0; i<6; i++)mac[i] = macs[i];6 F4 B5 g) k- j0 R
- printf("\nPlease input new STBID: ");
, h$ ]8 v; _3 C( l+ Z% A1 e7 m - scanf("%s", stbid);
! R& J8 T3 t6 i* C+ n - if (strlen(stbid) != 18) {# M: `4 W& k0 D1 y# A. T- l
- printf("Invalid stbid\n");: w% O1 H0 H: D' P! X: E' z
- return 1;
* z! T2 i. ?% z R: f. r+ L+ S" [ - }
$ u" ?5 p8 n0 g2 Y% b, B - printf("\nNew parameters: \n");% k+ d9 O! s2 L" T7 Z# q: z
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);+ c: J7 n3 K% l }
- printf(" STBID: %s\n", stbid);3 ]0 O5 f) y) F! v6 ~
( S3 K1 w5 N9 c/ d- printf("\nDo you want to change paramemters? (y/N) ");
6 N# c7 j# O$ D, C; d: ~ - for (;;) {
: x8 p) i8 ^8 C6 M( R5 m7 n - c = getchar();
6 q9 x' X2 K/ {+ K! \7 |7 h& W: M - if (c == 'y' || c == 'Y')
" A* N* `5 R% s1 B2 D% z1 G! y! T - break;
8 c; m4 n, j# B3 @8 F) |& R9 O* N - if (c == 'n' || c == 'N') {7 e/ b5 M3 l4 b9 m% w6 q2 S1 b
- printf("\nAborted.\n");7 j# D( k+ S5 J4 k; A# r' ~
- return 1;% q* P! x# u$ Z, p
- }
$ [' j1 A4 ~! h) y3 [3 i6 Y( ? - }
" i0 {0 r& F! ?/ |$ V* T! U! H - if (writeparam(mac, stbid) == 0) . }1 f3 ^7 y. H( x% L+ d
- printf("Parameters changed.\n");
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& t) t/ C c( o1 c8 A' u- A- k- return 0;( Q8 A3 J6 ^3 b
- }
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