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。
, J* e9 [* e5 d0 b: N/ r( b1 ^8 }需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>6 i3 ^1 [" W6 m' w8 K5 D: j
- #include <malloc.h>; K+ d) b6 Y1 n" ]4 i6 p8 a
- #include <sys/types.h>
f: Q) x4 ~( @; d q. b - #include <sys/stat.h>' g" f7 G; x8 g& S. G
- #include <sys/ioctl.h>9 x. M4 u0 c4 p Q8 N
- #include <stdio.h>) ^9 D$ k. l. w& x# o6 q b
- #include <string.h>7 r* |, n% V! r* L/ p5 V
& G; ]8 E* X0 \- typedef struct {9 x u, P- W/ T! w
- unsigned int e2prom_cmd_sub_addr;1 o; u4 |( H7 Z' m
- unsigned int sub_addr_count;
U' V) Q+ [: d) q% O8 [4 i% h - unsigned char* e2prom_cmd_data;
3 D, M9 p1 V% L( v" P5 W - unsigned int data_count;
6 ]) a& ~, \& E# g& d8 h$ M5 Y - } e2prom_s_cmd;
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9 c. L: l! z: n2 b" T$ c- #define E2PROM_CMD_READ 1) F! x6 l; ]5 ]& Z
- #define E2PROM_CMD_WRITE 2! K ^+ P- u! b3 a- f
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"' _" n8 e4 G4 v7 y6 y5 ^. t% L
/ v+ b8 D- x3 }+ r8 L/ [- static int readparam(unsigned char *mac, unsigned char *stbid)
# j5 J2 B7 S( W - {
/ ^/ X X# I5 r- l# W - int fd, ret; \) C3 K6 {; A: [' C( @
- e2prom_s_cmd arg;
4 e M5 c0 w. y2 Q, j( t - unsigned char buf[0x18];
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0 q+ V6 {6 c5 |/ j9 A0 D- fd = open(E2PROM_DEVICE, O_RDWR);7 M6 m# x: t, [0 |" N! j" o: a
- if (fd < 0) {
8 w/ m% H! T+ ~1 b- T( J- k, @! p - printf("Device %s open error.\n", E2PROM_DEVICE);. S6 V/ c/ v2 \2 G% u; r& a, [
- return -1;
5 y9 c2 l9 h! R" T - }
- E" d' H9 n& z; t# ] - arg.sub_addr_count = 2;
0 {; l* I/ G% A3 D - arg.data_count = 0x18;) s, m0 H: T6 H
- arg.e2prom_cmd_sub_addr = 0x290;
* L0 S* R/ s4 T2 G - arg.e2prom_cmd_data = buf;' L! ^" w5 o! R7 n% v7 o; l
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);1 D% v4 D9 Y! I _1 K3 h) H
- if (ret != 0) {
" U- k0 k9 {: l; e" J6 o- H - printf("Device %s read error.\n", E2PROM_DEVICE);
% o$ S( C0 m& S8 _1 q: _9 n" } - return -1;8 a/ A4 I& Y" r' d; d3 Z4 r3 [; ]
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- memcpy(mac, buf, 6);* B2 ?/ ^/ s0 U# o, X4 e% `. T
- memcpy(stbid, &buf[6], 18);
; c& C1 C: l# K O - stbid[18] = '\0';% b7 d! Q7 e, o5 L! z& ^" [( Z B
5 o* y8 f" V% M: ?1 |) |- return 0;6 n5 ]: ?2 l* _0 T6 [1 o. m
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+ x4 C/ [7 U& `% j- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
) z; J! M" s9 { T6 }: J - e2prom_s_cmd arg;
- S. Y6 m3 A! ?( l - unsigned char buf[0x18];
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& m1 A8 O& b( l2 E: a- memcpy(buf, mac, 6);
# S; d0 B4 T5 A- g* I& _2 R( {" H - memcpy(&buf[6], stbid, 18);
+ r2 }- M! w# F - fd = open(E2PROM_DEVICE, O_RDWR);' @# ]: L8 ~7 B0 o2 k4 Q5 O- A3 @- [
- if (fd < 0) {- e7 ?& a1 t7 G6 l# v9 N
- printf("Device %s open error.\n", E2PROM_DEVICE);) _1 E l1 b1 L1 q) f
- return -1;5 a5 z: Z& {' Y& ~# |/ }( i
- }
' r2 y# [3 z; B9 t o3 c/ m - arg.sub_addr_count = 2;6 R3 y& O- @1 M: Y
- arg.data_count = 0x18;- H' i& g0 G; _3 @
- arg.e2prom_cmd_sub_addr = 0x290;
. ]* }% Z( m: ? - arg.e2prom_cmd_data = buf;
6 k' n* L- a( n - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);( S9 S' h" i& C0 [* _
- if (ret != 0) {
) W" t5 t; Y4 b9 I8 x" Q - printf("Device %s write error.\n", E2PROM_DEVICE);& M% f1 l) E, \/ Y& z
- return -1;+ Y1 y3 P+ V0 ?) e F5 c
- }
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- return 0;
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- ' p9 x% I, I7 E, h9 ?8 Y, {
- int main()$ }5 O9 h2 @; a; J0 J- i
- {
- n3 N- J) c2 A" A - char c;: c' O. J. c& c2 r$ t/ e
- int i, macs[6];2 f, A- w! q* O/ q& F# K1 e! g. m
- unsigned char mac[6]; }* W" w }3 I) v! E4 Y7 w
- unsigned char stbid[256];8 o9 _* d8 s& K" z
- / y9 _8 g2 a6 U. Z1 v& L# l i2 x
- if (readparam(mac, stbid) < 0); b$ z$ U4 l6 g
- return 1;7 t+ r3 B; q* x( {6 ~
- ( X. t! N, C5 @ W( m1 F6 q& |& a
- printf("Current parameters: \n");
! ^6 p& {) v, h# F8 K. Q - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
3 q$ P! a; h5 n4 P. C7 w - printf(" STBID: %s\n", stbid);& a' [5 A( y# Q- W9 _0 k0 o5 {
-
& b: l. A; H0 A/ c - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
" T. |7 {' x/ O) s; c* T - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
3 W8 p3 r" m: Z1 Y% [) _% d0 J+ i - printf("Input MAC error\n");
2 @. l8 d7 t: o: {6 C; r G - return 1;- b3 n, |3 A4 B8 I1 C+ }
- }
5 O/ }3 v* t2 x2 i5 C( y. m0 j - for (i=0; i<6; i++)mac[i] = macs[i];
" M+ h3 z; ?; m/ I' | - printf("\nPlease input new STBID: ");) j& b& d% v1 \" q0 ?* C1 k
- scanf("%s", stbid);& h1 t: w( W% x9 ?
- if (strlen(stbid) != 18) {* K8 V* `% z$ i9 m* g
- printf("Invalid stbid\n");
/ T V' ]. F f7 ^0 c- k0 R( B7 J - return 1;7 F; @% w7 [" u$ ?2 j
- }+ l% z/ I% Q; ` M$ F
- printf("\nNew parameters: \n");
6 o/ B* v( E) O: E8 ~3 @ - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
( q6 o) q. K8 P F$ I7 w - printf(" STBID: %s\n", stbid);
+ f6 N- ]9 q' A) c- _& s - 7 e( I3 u- A" G" |, |, ^0 U
- printf("\nDo you want to change paramemters? (y/N) ");
J. D, K9 w& e0 }2 Y - for (;;) {
! @0 ^/ ] T" \9 p% G& N - c = getchar();8 x* O. F" V7 D* x$ w7 W
- if (c == 'y' || c == 'Y')- f+ b; G# N* ~" S; l/ M3 \/ t
- break;
7 Q; u, W0 ] U2 l' |% i1 d - if (c == 'n' || c == 'N') {- b$ T; q2 v& l/ V
- printf("\nAborted.\n");
7 }' |% j: E1 R - return 1;
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- }$ L5 `: D: @& R3 L" w* g
- if (writeparam(mac, stbid) == 0)
8 {- s. d( ], v - printf("Parameters changed.\n");
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: ^. r# B- c$ K; e, C+ u8 h% G- return 0;
7 e; r' y: o- I5 V4 O - }
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