本帖最后由 0522 于 2012-3-21 23:04 编辑
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S/ X# T, G# w# q: q修改的代码早有了。到今天不会编译。" t- d/ s* W) R& }2 L- P; `) Z
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
$ @- w" ^$ b, u9 T - #include <malloc.h>
7 [+ y2 D# ~! G9 h h9 S - #include <sys/types.h>
8 M* M0 T" F$ O' c. u - #include <sys/stat.h>
" G: l3 G: z c' |7 W" _9 n& U4 U - #include <sys/ioctl.h>- A0 v7 Z# c! Y2 C/ Z# C0 A
- #include <stdio.h>
1 ]# O' ]- ]5 Q/ k - #include <string.h>
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- typedef struct {
( l+ B- B! N" c* K+ J - unsigned int e2prom_cmd_sub_addr;
* H% O9 a6 p( D. b6 [0 Y - unsigned int sub_addr_count;0 M9 Z( ~* k1 C* v! D7 Z
- unsigned char* e2prom_cmd_data;
M& X$ B3 A8 G3 E - unsigned int data_count;
+ ]' ~5 N: S9 o9 U# W0 I - } e2prom_s_cmd;4 l" _& N; R/ I1 X H1 k
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- #define E2PROM_CMD_READ 1
7 X# ]# e! [$ E- i- Z' C0 b - #define E2PROM_CMD_WRITE 29 C1 e+ c$ ~" d8 A$ i/ K$ @
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)
" `' u; L' ^% v- M% ~7 F - {
" w1 ~3 C9 R" P6 S8 ~( D - int fd, ret;9 ?4 d* Q" R( L7 N8 |' ^4 h; K; b
- e2prom_s_cmd arg;" K6 V: b5 F q: g4 \4 d! [
- unsigned char buf[0x18];! ^ }, E, m" t1 O5 P. o3 s
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- fd = open(E2PROM_DEVICE, O_RDWR);: S, W% [! B# R
- if (fd < 0) {' N& K. v8 r" S2 @4 }) T5 E
- printf("Device %s open error.\n", E2PROM_DEVICE);
7 y. A: h$ G" \1 F5 G; G - return -1;
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- arg.sub_addr_count = 2;. w9 r k8 A9 C9 f
- arg.data_count = 0x18;, F$ F$ [5 t6 T9 }( i8 n
- arg.e2prom_cmd_sub_addr = 0x290;
: i" t$ H# K' R! M - arg.e2prom_cmd_data = buf;$ l, ~6 H- l* ~3 S" ]3 L
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);0 C) Z, U% }/ Y1 \+ X
- if (ret != 0) {
, U8 O( Q1 O6 u8 J. X$ ~" | - printf("Device %s read error.\n", E2PROM_DEVICE);
7 I2 |# e2 z9 u1 V- d5 V8 Z - return -1;
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- memcpy(mac, buf, 6);, k2 S) ?& ~- Y9 L t! Z
- memcpy(stbid, &buf[6], 18);
- f* v3 O! A' M1 c - stbid[18] = '\0';
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- return 0;3 o9 x& ?' O% o8 f5 {+ F7 \" l. H
- }/ l; K* q$ Q% Y) [
; |( ~! x f7 }; V1 n3 D7 s+ C3 d- static int writeparam(unsigned char *mac, unsigned char *stbid)+ H* u3 ^3 J' e4 W+ e6 K
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- int fd, ret;
# t; r' U! ~+ J/ Y9 C7 ~7 a+ o - e2prom_s_cmd arg;
4 [2 o# ?: k& \3 m6 V8 C6 H - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);3 q+ |& B) G6 D" q7 S7 d3 M. R
- memcpy(&buf[6], stbid, 18);
1 I: N6 f U% N0 b - fd = open(E2PROM_DEVICE, O_RDWR);5 g4 S( W! E. o8 z" C4 v( m% E/ S
- if (fd < 0) {0 `6 `1 W) }" I
- printf("Device %s open error.\n", E2PROM_DEVICE);
& Y$ Z( I1 z# P/ g - return -1;
% D2 K! W# F" D0 l+ I+ o% P. w - }
: H# h) |2 e. r9 J& L5 E- z7 c - arg.sub_addr_count = 2;* B7 j5 j3 ]3 M1 B
- arg.data_count = 0x18;" c& B$ Z @# d
- arg.e2prom_cmd_sub_addr = 0x290;9 _: S8 L' j6 K3 C& z
- arg.e2prom_cmd_data = buf;
( V' v% `7 `. Z" n5 D; J9 S - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);1 {/ j! t* c8 U
- if (ret != 0) {' g' Y+ D6 Z' M* Y1 g2 z4 K/ X1 a
- printf("Device %s write error.\n", E2PROM_DEVICE);
' Y0 {+ f Z; V- A. E$ P( i' B - return -1;, Z# Q% d9 R( g4 v, {
- }
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- return 0;
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- & X8 Y1 W. y# P4 h0 Z/ Q0 [) A
- int main()
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- char c;
7 P, m' X( j: ~/ c0 N - int i, macs[6];. J& X' x3 [9 N! b0 e5 }
- unsigned char mac[6];
, _, G( v& d: c& t5 X - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)! r" r0 N2 y; t' I9 L# b1 F% {5 Y
- return 1;
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2 W/ L3 l% j8 `" W/ u- printf("Current parameters: \n");3 H9 a& m' O9 v! ?$ c
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);2 \* u& }- `, n& C% ?* z. z
- printf(" STBID: %s\n", stbid);$ B1 D' `1 v$ w' a6 y( |0 {, d
- - v9 b0 s/ M" E8 \2 B- O* v! [8 P
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
$ m( x$ M% l, r3 ] - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) { k& j: E# K! w
- printf("Input MAC error\n");
* a# m2 K# w1 y6 \' X - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];5 }& o6 L4 Q0 |4 a
- printf("\nPlease input new STBID: ");
* _5 D8 m+ ] l( g1 l( K/ a% E' a - scanf("%s", stbid);
% S; E% z' N @9 D4 z6 L9 u2 N - if (strlen(stbid) != 18) {. K* W$ ~4 a* m, t' \6 U1 S) ]
- printf("Invalid stbid\n");5 L( {* m9 p9 j% p6 O8 x6 C1 u
- return 1;/ ^; H$ G" t2 A8 c) d) C: N, k
- }
: H0 W$ T1 H" J/ n - printf("\nNew parameters: \n");3 x8 p# m k# K; @! z$ N
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
9 D* e, W: f: j0 A6 ^ - printf(" STBID: %s\n", stbid);4 O; ^ l" N* n9 v
9 z0 S2 n: e) p2 D5 g/ ~- printf("\nDo you want to change paramemters? (y/N) ");2 L* B$ P7 o3 M2 a& Q- A* d
- for (;;) {
, l6 Z1 q0 E: g8 Z- T2 ]7 n - c = getchar();
% p6 t( g5 ]6 a, h9 B4 I - if (c == 'y' || c == 'Y')1 L6 H/ ]3 w$ L) a8 c+ j3 E$ H
- break;
: I5 v' f. Q& w$ k4 p6 z. V - if (c == 'n' || c == 'N') {
% w/ h0 W+ S4 @8 l - printf("\nAborted.\n");
; [% q" F; P6 ^5 A - return 1;
- N6 ] L! }$ `- R; d- ?8 [ - }
" t: |3 s7 v' N% @ x6 e - }
, P& M7 d, a$ c* D - if (writeparam(mac, stbid) == 0) 8 ~5 b: Q7 t* N# {% ^# u* w
- printf("Parameters changed.\n");
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- return 0;
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