本帖最后由 0522 于 2012-3-21 23:04 编辑
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1 i" ]" H! ?; B1 Y7 {修改的代码早有了。到今天不会编译。' O) Y+ P1 o1 m/ q7 H3 Z) X
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
, {. m3 L3 v, P5 y - #include <malloc.h>
/ K# v7 S* k. l( @ - #include <sys/types.h>
: @! p |( R/ C1 ? - #include <sys/stat.h>
6 [9 V5 {9 C- W F& E5 j. ~ - #include <sys/ioctl.h>
+ W( F1 {: i7 x- c; f5 _ - #include <stdio.h>. \+ n7 ?1 B8 E5 N9 A4 _7 {
- #include <string.h>
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- typedef struct {
/ E9 c' x/ F" P K1 K- n3 H8 @ - unsigned int e2prom_cmd_sub_addr;2 ^ |, N' R# s* y( k$ `, V5 b
- unsigned int sub_addr_count;3 V7 l9 D0 `8 O- l( S
- unsigned char* e2prom_cmd_data;
, G& v- m7 N" m0 ~' {& E - unsigned int data_count;
- l8 w1 k- c y e8 d2 x, ^ - } e2prom_s_cmd;+ w9 u" {/ |& h( W1 O
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- #define E2PROM_CMD_READ 1
9 b9 ~; q, x* n } D3 ? j - #define E2PROM_CMD_WRITE 2" u$ C1 D# u p1 T6 [3 X
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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. D, I8 C7 E/ j) Z% x! h2 e/ P0 w- static int readparam(unsigned char *mac, unsigned char *stbid)& q# _( @" V6 q
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- int fd, ret;
3 D6 U6 }) k5 m+ R7 g; G6 q - e2prom_s_cmd arg;
7 ?, Q7 {& u: e( u g - unsigned char buf[0x18];
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, v( c8 v w/ O! m4 ^/ F- fd = open(E2PROM_DEVICE, O_RDWR);/ n9 E2 K n+ x" }
- if (fd < 0) {
" P, [ W$ B/ V4 Z/ N8 S& ^8 s - printf("Device %s open error.\n", E2PROM_DEVICE);
! ?' \- Y& O: k6 t& `2 X* }0 q5 L$ k - return -1;
' t; e9 @7 {% Q0 G; P/ Y1 y - }
+ v6 R6 D- [; ?; O& I x; X- k - arg.sub_addr_count = 2;) |* |6 j4 f3 I5 V& R7 r; Y
- arg.data_count = 0x18;" {3 ]2 X: S- K% h4 w. Z
- arg.e2prom_cmd_sub_addr = 0x290;/ b! t2 ?. Y% p" M B
- arg.e2prom_cmd_data = buf;
5 [* s7 t% w; H6 ^2 T - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
/ I7 T, m& B' O. l# W - if (ret != 0) {
8 }5 _% Z& Y4 l) F* ^ - printf("Device %s read error.\n", E2PROM_DEVICE);
/ Q0 B4 h; i2 c I; \ - return -1;) n9 x- T; s+ ~% a: s+ q) E# f
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- memcpy(mac, buf, 6);, J4 ^# M" _$ Q
- memcpy(stbid, &buf[6], 18);* R! F k: R$ l+ P% ]
- stbid[18] = '\0';
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/ C s. K* J) G8 Y% c0 U# E+ T- return 0;
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- static int writeparam(unsigned char *mac, unsigned char *stbid)& M- D( x# l' M2 A" h
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- int fd, ret;
~ M c4 K3 z - e2prom_s_cmd arg;
; Y" D" j* q9 l! ]0 V - unsigned char buf[0x18];. X% ]% @& M* M9 }5 W
- 3 ~2 e" F0 T/ q: { ^2 k
- memcpy(buf, mac, 6);
8 r( i4 V, c+ \ S; S - memcpy(&buf[6], stbid, 18);! c8 g8 p' s, h: b# m6 ]0 E
- fd = open(E2PROM_DEVICE, O_RDWR);
+ I7 b/ P5 g+ I, M - if (fd < 0) {
2 \- ^' R8 s) a9 j$ `5 [$ r. `0 v3 i4 v - printf("Device %s open error.\n", E2PROM_DEVICE);
/ x8 V. K4 L% L8 {( G! w8 P - return -1;: D6 R6 i7 Z/ I: x# _, s
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- arg.sub_addr_count = 2;& M4 L; I W. |, x7 K }
- arg.data_count = 0x18;
5 V7 h2 ?: h R5 O9 k - arg.e2prom_cmd_sub_addr = 0x290;
, L! D2 t l8 h1 Y+ ]- z - arg.e2prom_cmd_data = buf;3 b. @0 ?4 e9 f6 r) b
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
$ L1 D3 Q9 |; M; [ - if (ret != 0) {
; l# x; ?* n) W6 c. f0 u5 m - printf("Device %s write error.\n", E2PROM_DEVICE);
: Y& S( G; }( C, g9 h' V - return -1;9 C4 i9 q; C7 W! D3 q* o
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- return 0;& E/ w! W/ j" j: C$ `' h
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- int main()
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- char c;6 J1 v! N+ s& i9 C* J ^" k2 I6 e
- int i, macs[6];4 F5 e5 ^# H, ~/ Y5 \- b0 [0 {
- unsigned char mac[6];3 F$ [- w# S9 W" r' o
- unsigned char stbid[256];% `- O; }# j+ X
. B# Q: o" d; r! i$ q- if (readparam(mac, stbid) < 0)
& ^, o1 }! w, Z+ e* q3 |0 d - return 1;
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- printf("Current parameters: \n");8 p1 F) W/ J0 Y& y/ z
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); l) B" F" _+ ~+ ]
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");- `& O1 p7 A$ ^
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
/ c7 |$ Q1 S- w - printf("Input MAC error\n");
8 ~$ ~, H2 ^* U. k# @: m - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];6 T6 T! ?6 x, ^* B
- printf("\nPlease input new STBID: ");
' d+ q/ [, l2 U - scanf("%s", stbid);
# q1 Q7 @5 }+ b8 f) i - if (strlen(stbid) != 18) {0 U2 w* V0 W. \) f: X7 z
- printf("Invalid stbid\n");! p8 i j$ M/ _7 [% i
- return 1;
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0 S' O; Y0 s- d6 @ - printf("\nNew parameters: \n");
3 i/ E' V2 ~4 \) I4 [( J' L1 p \% | - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);8 L2 y* P) t+ K6 k& E2 _, a
- printf(" STBID: %s\n", stbid);
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7 N& @; ? b7 ^$ |2 W- printf("\nDo you want to change paramemters? (y/N) ");9 ~' }' a G- m. |. H
- for (;;) {
2 I. N" e5 J* e+ }2 }( H0 W - c = getchar();
3 ]+ V. C: ]+ U$ c% @! c - if (c == 'y' || c == 'Y')# [" n7 |! E/ h; i2 k
- break;8 [5 n% D4 i/ R" _
- if (c == 'n' || c == 'N') {
' u4 [& w' x( g# T - printf("\nAborted.\n");
+ f- |4 N- S! I; X - return 1;: j( _, ^& V- U S
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- if (writeparam(mac, stbid) == 0)
7 S- ?6 w# ^" V% t" q' [+ @ - printf("Parameters changed.\n");
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; J: ], a# t' w! i- w2 f- return 0;
5 M! K- o1 C9 X2 K2 [0 r - }
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