本帖最后由 0522 于 2012-3-21 23:04 编辑
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5 J; i" D# b3 L修改的代码早有了。到今天不会编译。
1 s* ]3 O `7 m8 w3 T需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>" c6 K+ R) `$ i; b( r( z1 O. U h
- #include <malloc.h>/ C; r8 |* H! Q6 ^; @5 w
- #include <sys/types.h>
, ~0 O& t8 b3 i, m - #include <sys/stat.h>% L6 {# V" ?4 t
- #include <sys/ioctl.h>, S4 w" }& y2 E1 c
- #include <stdio.h># J! x( W! ?. Z2 _
- #include <string.h>8 {! p% u+ v: [2 Q, E# }$ V& W! q; |7 v
- - N$ @$ x% G# p. G
- typedef struct {
0 {$ o; B# E9 A3 `. v2 W7 y/ ^! x2 p - unsigned int e2prom_cmd_sub_addr;) Y& W, K- z9 m. p
- unsigned int sub_addr_count;
! }- |: ]: C) M1 o - unsigned char* e2prom_cmd_data;
H' ? T1 v+ U% J9 T, e- H - unsigned int data_count;* J" V4 i" x9 E( d# t& T, k8 p9 V
- } e2prom_s_cmd;" ^% ^" H$ a0 \2 `
- 8 i8 J4 u" M8 d3 D
- #define E2PROM_CMD_READ 1
" W: E1 s) X' B* x# t L; r0 D - #define E2PROM_CMD_WRITE 22 q k4 @# a! S. N( o
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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# x; o3 n0 P: V- static int readparam(unsigned char *mac, unsigned char *stbid)
: V# O( f _5 S' N* F - {
: I. r$ K" e3 Z/ n2 M9 x2 |" ]" ]& P - int fd, ret;
1 L5 [( M; u2 p# Q1 H - e2prom_s_cmd arg;$ q0 H: O6 O* ^3 \& L+ @, W
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);5 }- I4 }) d1 }& u+ P0 o) S
- if (fd < 0) {
2 A; _) `! u+ V7 i) M% `3 L1 H - printf("Device %s open error.\n", E2PROM_DEVICE);
9 D( Z d+ F+ I6 _) B$ _: S; { - return -1;$ F; C3 Y- q3 B4 G0 O6 `
- }
9 N4 }3 q4 z0 `3 }: x - arg.sub_addr_count = 2;& ]0 v9 Z1 Y/ K& f
- arg.data_count = 0x18;' I/ c+ T! `$ i+ ~
- arg.e2prom_cmd_sub_addr = 0x290;
# E6 q r/ B8 k$ W9 m8 | - arg.e2prom_cmd_data = buf;
0 T; I4 T- ~+ g* ?( ?+ R* N - ret = ioctl(fd, E2PROM_CMD_READ, &arg);: `/ n# }. h4 [
- if (ret != 0) {/ w9 _3 @& `8 M; O" x
- printf("Device %s read error.\n", E2PROM_DEVICE);
( z, w9 G/ z3 _/ s- r# U% w6 ^ - return -1;
* T1 z0 p9 K/ j; C9 n) s, t - }
* u: U5 p6 Y! E( f - memcpy(mac, buf, 6);( [. u2 @0 }" U
- memcpy(stbid, &buf[6], 18);
6 m# j' E, o ~0 y - stbid[18] = '\0';
# V( `( A3 R3 w& s - + N0 k. L9 @- Y- e/ Z- W$ \) s3 I
- return 0;
/ U6 l3 L( I" p - }
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1 a) y" b8 @+ H0 h5 k- static int writeparam(unsigned char *mac, unsigned char *stbid)
: w2 K" E0 {6 D- ^. O$ A0 Q - {& t' n. Z! D& \; U9 b3 ^
- int fd, ret;! ^) ^$ L0 V- c) H( D
- e2prom_s_cmd arg;5 f8 ]7 _" E7 }7 o/ j
- unsigned char buf[0x18];: P4 u# L3 q& w
- * G7 j' G- o% B. M2 M
- memcpy(buf, mac, 6);2 K- }& D0 t; W M6 l, _
- memcpy(&buf[6], stbid, 18);! h4 x4 N7 L1 U0 v7 m( G
- fd = open(E2PROM_DEVICE, O_RDWR);
2 u- x9 S% L6 }* j! a. i( [2 z - if (fd < 0) {
- a! a2 H$ {9 s# @3 z A( ?0 O' j: p - printf("Device %s open error.\n", E2PROM_DEVICE);" E# S3 a5 I3 i' q8 n* E& O
- return -1;8 ^, v6 p/ X( K' {6 z" U$ m
- }
1 g4 z2 }" ?3 ~% o% y: @/ k- r, V - arg.sub_addr_count = 2;$ m% ~! O% I# K1 [& g
- arg.data_count = 0x18;$ S; l0 C0 F. b, n x
- arg.e2prom_cmd_sub_addr = 0x290;" p0 L: J' G% w
- arg.e2prom_cmd_data = buf;
' L* h# ]. K6 [/ j - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
/ }7 _& \6 h& P; n2 Q - if (ret != 0) {. P, Q7 S3 Z K+ }; M/ X
- printf("Device %s write error.\n", E2PROM_DEVICE);
. k3 S# [' m" _) _ - return -1;
" k' L' ]% ~0 l2 M' _: k7 B - }
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- return 0;
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* }+ k5 V- V) R9 c- int main()
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+ a$ t$ N- O& o. g2 X5 C0 i4 O! w - char c;
% j3 G9 d1 w" c) C- e - int i, macs[6];
0 ~' U2 ? B+ @ p, F- R V, _" `7 ?4 Q - unsigned char mac[6];
) T6 o! T: s) j+ m - unsigned char stbid[256];( l( \- \2 C* ]$ `: w/ [' W
- ( m4 Z6 M8 @/ t4 L) R* F8 ~
- if (readparam(mac, stbid) < 0)
! P+ J. z6 G7 I& e% A - return 1;8 d9 x0 Z# x6 W
0 U0 Q/ a+ ^! k Q- printf("Current parameters: \n");# _4 i* z( W: H8 d/ n; r+ J
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
3 s( J+ n8 f$ o' z, m3 w7 a - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");9 u. G- V1 L5 t' q% `* t& b/ A
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
- R& s) Y Q) C. h - printf("Input MAC error\n");3 h3 A7 a; a; H$ `2 q6 F
- return 1;( f) O" b% Z( t1 E
- }' i; P! ?9 j! r2 q- c5 r
- for (i=0; i<6; i++)mac[i] = macs[i];, d% \; X- F# m4 D1 h5 K
- printf("\nPlease input new STBID: ");4 U' m, V* s* `; X( \% p+ ?
- scanf("%s", stbid);
" a* e% E- o! P, \9 K - if (strlen(stbid) != 18) {2 R" J( i( C' _6 d* Z
- printf("Invalid stbid\n");
% l) n" J. ]6 Y5 L9 k7 W - return 1;
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- printf("\nNew parameters: \n");
! e9 Y$ Z% G4 A) y - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
1 |$ X: U+ L( v; N) y6 _ - printf(" STBID: %s\n", stbid);# w4 ?( d0 U" |* ]+ x
- 5 A/ K+ ^: o0 m4 E
- printf("\nDo you want to change paramemters? (y/N) ");9 R* n4 E4 C% R! A" i' J0 k' e
- for (;;) {0 K1 f* |' q- P" t
- c = getchar();
5 o. y) Q: m& D- b5 ^* | - if (c == 'y' || c == 'Y')
/ C# c7 |% ]( ~" l: v/ z/ \ - break;' J9 k7 R5 t7 A' m' k
- if (c == 'n' || c == 'N') {
" L! F1 `8 z d# S: f2 x - printf("\nAborted.\n");
m# M0 _4 ]+ z3 k - return 1;
+ T+ r# Y. \4 d: R4 [6 s2 S2 o - }
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- if (writeparam(mac, stbid) == 0) 1 g' I& L: i2 E, ~
- printf("Parameters changed.\n");
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- return 0;# G8 H! u: r! a% _$ {3 C8 p
- }
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