本帖最后由 0522 于 2012-3-21 23:04 编辑
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修改的代码早有了。到今天不会编译。
! i5 d' G9 J6 j+ P- V1 r需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h> v4 ^7 @' K. m" ?* R8 h' a1 _
- #include <malloc.h>
; s4 b' y3 l2 a2 S- V/ @$ | - #include <sys/types.h>+ ~5 ^4 y3 G [( U- Z" u
- #include <sys/stat.h>
9 B. b4 [9 l: Y1 n9 F - #include <sys/ioctl.h>
5 o0 I& c+ F# n$ y$ J - #include <stdio.h>
; u y1 M9 ?4 H" c& E) `9 C7 v - #include <string.h>6 o5 {% f. C1 Z
6 J0 }6 K0 Q" h) U& n4 G. M- typedef struct {
2 ^" x0 d2 K$ i - unsigned int e2prom_cmd_sub_addr;9 {4 c9 ~1 G3 G p% {5 d
- unsigned int sub_addr_count;
+ W1 r! r' ?# a, l( Z" s; @1 Q: W - unsigned char* e2prom_cmd_data;' o, B7 L! y* X% i' U U
- unsigned int data_count;
5 e. Z3 _0 D1 z2 m' _ - } e2prom_s_cmd;+ B' F n7 T; x
% @) {5 y- O7 o5 r e1 w' l* J- #define E2PROM_CMD_READ 1$ f3 s ~$ I2 Y1 @; L( T
- #define E2PROM_CMD_WRITE 2) C% j0 I6 ~5 R1 _5 F
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)+ i A6 D3 K% G# [; L
- {
7 j M2 X0 \7 {4 g0 @1 j4 P; ^ - int fd, ret;# ]4 ~* W" ~8 O7 V% m4 Z! Y7 R$ Y
- e2prom_s_cmd arg;. T9 H( |( F! A# j6 F+ i, l
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);& B6 k: E6 P! \2 C" y, o" C3 B
- if (fd < 0) {
! [% }, |( C1 e% a& S A0 r' @0 ~ - printf("Device %s open error.\n", E2PROM_DEVICE);
2 Y/ N3 E; O% k5 U0 |& [ - return -1;
3 z& o/ q' |9 c8 ?/ M; { - }* s* i7 R4 n# k Q9 H A
- arg.sub_addr_count = 2;
2 t( ~$ I) u5 z. _8 T- B9 Z - arg.data_count = 0x18;
$ {) q1 k' O7 A g7 r+ b2 }& h h - arg.e2prom_cmd_sub_addr = 0x290;( s/ J2 d8 _- z
- arg.e2prom_cmd_data = buf; b3 H$ m% n/ c+ i+ ^
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
- `5 M9 j' P& Y) Z: K - if (ret != 0) {
\9 ~( @$ T5 |8 z - printf("Device %s read error.\n", E2PROM_DEVICE);" h+ C" M, Q' D4 a4 v1 ?" w( l! Z3 n Y- e
- return -1;
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- memcpy(mac, buf, 6);/ K( [3 `% a( M- n. {% x7 v2 l
- memcpy(stbid, &buf[6], 18);
6 o; i5 F! O# T - stbid[18] = '\0';+ u, i7 @3 F) |
) [4 `. r8 V6 p; D" v. ~# k- return 0;- z1 P2 Z& ~/ O& A0 a' z+ _" V9 }# Z
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
- r X7 P9 s; y5 G1 y3 c4 B [ - {
& U( G9 ]1 C4 u9 O% j) N - int fd, ret;/ p# }, b; p, {( K% W5 V
- e2prom_s_cmd arg;0 L# e H& W' u* X0 O
- unsigned char buf[0x18];
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- memcpy(buf, mac, 6);0 @- A+ {$ _7 e |$ p* @5 C
- memcpy(&buf[6], stbid, 18);
& \- p1 [4 b3 q4 d% D3 Y0 G. ?& ^ - fd = open(E2PROM_DEVICE, O_RDWR);
: m- c* X8 f* b - if (fd < 0) {6 e! p0 {5 I2 W7 H& X/ G
- printf("Device %s open error.\n", E2PROM_DEVICE);
; E: A! x' ]9 ]+ |, V5 h% b- | - return -1;8 w4 z% j: }/ d2 |( J
- }
* O, j2 h8 E7 R8 l - arg.sub_addr_count = 2;& B# B# l# a6 e7 K( ~
- arg.data_count = 0x18;2 h* }$ L5 L9 H: a0 v! V+ c$ e
- arg.e2prom_cmd_sub_addr = 0x290;
+ C: S# T3 I9 q7 L - arg.e2prom_cmd_data = buf;
5 {" O2 ]" ^ T) l3 \1 a - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
5 t# z; R4 J3 D3 R; ~ - if (ret != 0) {6 B$ g1 E$ A0 g! T) [( L
- printf("Device %s write error.\n", E2PROM_DEVICE);
; [# |$ U: b. @% n* d6 B - return -1;1 w! ]8 i8 J& S$ ?3 ], E
- }
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6 C+ U4 r3 ]- o- return 0;
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, I; s- L; k1 l8 V- int main()
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- char c;1 k( `, B$ }' {
- int i, macs[6];3 E1 c1 S7 A- @3 X! A- X
- unsigned char mac[6];
/ l j- O, A9 W* d4 g - unsigned char stbid[256];6 r4 R# T+ i/ s% Y, c6 O- P8 {
2 e& [* f4 v' ?4 E* C( q- if (readparam(mac, stbid) < 0)
& V7 W. C4 A& U) J( e$ {, T - return 1;
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" |/ \6 L5 n/ \' H- printf("Current parameters: \n");; J1 n# Y* k" J3 S4 I1 W
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);. u% g- R6 Y9 W1 V8 L4 a G( p4 s
- printf(" STBID: %s\n", stbid);# x r$ ]# U6 D* z$ w* }2 L8 ?5 k
-
. z0 G9 V+ Q& l' F) l8 f; Q/ ^ - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
7 p6 O0 f: j& o5 } - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {3 P! ?3 K# T& ` `$ s. G( l4 H
- printf("Input MAC error\n");
& L$ z3 m* P- H3 R, @ p/ p - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];' j0 k8 Z* r; ^) Z" K: Y
- printf("\nPlease input new STBID: ");
6 b, h& I, P G# W+ C/ J1 ? - scanf("%s", stbid);$ @& V/ W, Z( M' {( |3 k0 d
- if (strlen(stbid) != 18) {
4 q' V/ F n( m4 L3 \! i - printf("Invalid stbid\n");
8 o9 F9 j0 i/ y' M* ` - return 1;
0 g1 N& l) K- W - }
6 l; b% S% K& u - printf("\nNew parameters: \n");3 s. z$ ^/ @4 q: ]7 s/ y) a
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
# C, q6 ~1 S$ c, j+ d - printf(" STBID: %s\n", stbid);2 S. E7 t$ W1 {! h, B0 B
& e$ J" ?- V2 \! J* _3 J- printf("\nDo you want to change paramemters? (y/N) ");
" F; {( Z* P9 u( E9 ^ - for (;;) {
, @) Z# c% f) } - c = getchar();
" q" {8 K3 E: g$ u8 ]7 V9 D0 I - if (c == 'y' || c == 'Y')
5 e" c) r5 r1 w/ U3 h- b - break;& G' \( E' P9 g) C* O/ x
- if (c == 'n' || c == 'N') {
! ]+ c, s. C- W2 F% x3 z - printf("\nAborted.\n");" _* p* W0 M" r; f* h
- return 1;2 D. }3 w& r# g0 \* K
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- }) B: V: W# j1 z, b
- if (writeparam(mac, stbid) == 0)
5 `; k/ o4 U7 R* p9 k: ~ - printf("Parameters changed.\n");
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- return 0;
' A4 W6 d! w. u - }
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