本帖最后由 0522 于 2012-3-21 23:04 编辑
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; d% v7 W8 q( p修改的代码早有了。到今天不会编译。
" v( F* I+ F( ]. A8 L, m3 Y需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>, e/ b4 p9 V% h* i( m, L
- #include <malloc.h>
$ m4 ?+ T' O1 j" t; B( z9 j- V1 g5 a - #include <sys/types.h>
$ V1 ~* f& @% {9 a - #include <sys/stat.h>' C: L+ p9 V1 ]( U2 E1 x
- #include <sys/ioctl.h>3 w* l7 z+ u5 J* Q4 ~# p
- #include <stdio.h>3 O5 |5 c+ `* e4 h
- #include <string.h>2 ? P) M* S4 h
3 j8 _8 d P" u, @" y# H s- typedef struct {
6 d% I- d) S3 s- H - unsigned int e2prom_cmd_sub_addr;/ t! Z- C- Z$ D% G9 P- B* I; N9 d$ R
- unsigned int sub_addr_count;: @1 C# N& f; y; e! ~' A4 d
- unsigned char* e2prom_cmd_data;
9 O! l- M5 j5 k8 L' J0 F7 z - unsigned int data_count;
1 r# K) k( o* z$ ^ - } e2prom_s_cmd;
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8 D- ~+ B6 ]) E- #define E2PROM_CMD_READ 1) ?3 T% u, D- P3 n J
- #define E2PROM_CMD_WRITE 2
. o( w! i% S' U2 C6 } - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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" |! E, q5 z) M# R' m$ r# C) C- static int readparam(unsigned char *mac, unsigned char *stbid), r6 C$ d% M3 e" {2 ~
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- int fd, ret;: n* u% N9 ^6 D1 S/ V5 C
- e2prom_s_cmd arg;: l3 Y1 b. ? K, J; T
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);+ T, {# c: y+ t& e
- if (fd < 0) {
) l* H& q7 p! Y( S7 |) [ - printf("Device %s open error.\n", E2PROM_DEVICE);3 x0 S/ e3 \5 @! K
- return -1;
3 w/ S2 z7 B5 {) T A - }
. Z3 w+ ]% Y- g: Z - arg.sub_addr_count = 2;
2 f- d2 F/ ]5 w# Y- {4 b - arg.data_count = 0x18;
" S; ^% d1 E5 a: v. F, C - arg.e2prom_cmd_sub_addr = 0x290;
3 X, b3 P8 {$ [) t - arg.e2prom_cmd_data = buf;
7 [0 B3 G" x8 u9 H+ f9 Y - ret = ioctl(fd, E2PROM_CMD_READ, &arg);3 [6 I2 Z2 `, b6 `2 C
- if (ret != 0) {
1 c/ d2 r: F; G - printf("Device %s read error.\n", E2PROM_DEVICE);1 ]+ F+ s$ [. P# _
- return -1;) I( R1 u( _7 |# j8 y& G! Q% G
- }
1 n ^0 Q* @* w; \7 o- F0 T5 m - memcpy(mac, buf, 6);
0 b7 W) U' r$ v. \- v% w - memcpy(stbid, &buf[6], 18);+ q l. V2 `* B
- stbid[18] = '\0';7 [1 k1 {# z6 J* [# ]- I, ~& X
( ?* f* q9 ?2 \9 j- return 0;0 a8 C+ ~. b0 B3 V5 i$ v
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)3 |5 A4 s3 m: `4 C& ]
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- int fd, ret;: g" I% V: [4 u- `7 u6 ]& i
- e2prom_s_cmd arg;
! g/ r3 c7 I4 n' ^5 V& e9 t$ P - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
: W6 D! |- z1 W7 c- b5 l+ O - memcpy(&buf[6], stbid, 18);- ?2 O" ^- o; t( X
- fd = open(E2PROM_DEVICE, O_RDWR);
! q/ x$ F0 k8 o - if (fd < 0) {
D" s# @% c4 F5 [2 { - printf("Device %s open error.\n", E2PROM_DEVICE);5 j+ \2 J4 u6 v6 N
- return -1;
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- arg.sub_addr_count = 2;
+ ]. ?: D& \2 i, a ^, O6 `- y - arg.data_count = 0x18;1 y+ j( @; Q% b
- arg.e2prom_cmd_sub_addr = 0x290;8 w- d0 M8 f6 }
- arg.e2prom_cmd_data = buf;
1 p" X3 N: S+ i - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
& j6 s8 J% B& B' j. V - if (ret != 0) {& T; [! o$ {( L" \; x/ ^* J" N7 \" |
- printf("Device %s write error.\n", E2PROM_DEVICE);
2 `2 c, f% ?. d* W* H3 T, u- A/ f - return -1;# b7 z6 E/ ]( i0 i- x
- }
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- return 0;
" I+ b$ {% i/ F0 {5 e - }
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- int main()
! ?* X- ~7 N: H: i6 d! D% j - {
4 G, S7 [# _, G1 Q" V5 S2 g - char c;
6 g5 b4 `3 C6 {7 a: O. \2 S - int i, macs[6];
* V& O# j5 o0 ?: H* c5 g - unsigned char mac[6];
8 r! s8 S1 Y) \- x - unsigned char stbid[256];2 i! b/ q! _% @# g* f+ |% U% y
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- if (readparam(mac, stbid) < 0). A- E+ b/ _. k2 Z/ c! O
- return 1;8 d) v* Z2 T' J
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- printf("Current parameters: \n");
4 J% M9 `. _! {# m! {1 h - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
3 I( e( U( n- U3 }1 T - printf(" STBID: %s\n", stbid);$ D5 w0 ^* ~" b4 e. i! f# ^
- ) z! K' s) m5 H* }* B- c
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");" O) Z d' Y" Y. s$ I. Q
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
- I) `( P2 H9 _ - printf("Input MAC error\n");3 v5 o0 p, o; h F
- return 1;0 W" `. a! t. K# X
- }
) w$ Y# h% X$ c& H - for (i=0; i<6; i++)mac[i] = macs[i];% c8 \ F$ N% B0 j$ X+ u
- printf("\nPlease input new STBID: ");: d) f, [* [' J% Z. }; x) N
- scanf("%s", stbid);
/ G% V8 ?' D7 R# u - if (strlen(stbid) != 18) {, h- y4 D5 _) m" e$ k7 j
- printf("Invalid stbid\n");" d$ q) m# f9 K/ m& m$ s. |
- return 1;, F V( L9 @: x. k# g2 \
- }
/ X' ]) U; Z7 ?5 c- W - printf("\nNew parameters: \n");8 S$ t5 I# v" a' D, X
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);+ m' j R! E p' E# E# H4 y6 c
- printf(" STBID: %s\n", stbid);& w6 E- Y' n' ^/ M) e
- - q# q U2 Z# z3 t4 g! T' l
- printf("\nDo you want to change paramemters? (y/N) ");' X% J ~- R) E& @# E1 w
- for (;;) {5 |# D& z. ]& c# W9 i
- c = getchar();5 P% K1 T8 A9 r/ a, y6 X, o
- if (c == 'y' || c == 'Y')
: H) q9 r# I- O j8 f' L. c8 } - break;
. r# c3 ~1 ]4 D4 Z# ` - if (c == 'n' || c == 'N') {; `- r3 D9 t- N* w
- printf("\nAborted.\n");
% u1 e D% R7 y4 A - return 1;
4 @) _& X h: H( \ - }
+ {2 n6 `7 y9 r3 }& D! g5 @9 j - }) t' F( g9 K! I. A& x# z5 p
- if (writeparam(mac, stbid) == 0)
% R7 V" ~% Z! G! S; s - printf("Parameters changed.\n");
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- return 0;
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