本帖最后由 0522 于 2012-3-21 23:04 编辑
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" \7 y- B& F- K/ K/ d9 J6 D+ L修改的代码早有了。到今天不会编译。
^. F1 c4 _& Q( |& H/ P4 q) D$ Q1 O需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>4 s( V( c8 v+ j; Z6 z4 ] b
- #include <malloc.h>1 V3 A0 T/ G: e I* s% r* K
- #include <sys/types.h>6 v2 B4 w9 H* a; e$ ^
- #include <sys/stat.h>
2 l7 n9 V- X0 g; R1 z$ z# H$ @ - #include <sys/ioctl.h> [, v3 T4 B0 a6 n* y* ]( h
- #include <stdio.h>
& J K/ i2 |( m5 M- L - #include <string.h>
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. K5 ]& g+ @# E+ _6 J* t$ w- typedef struct {8 O7 z, @$ d1 P! A
- unsigned int e2prom_cmd_sub_addr;! J, v$ I4 Z9 ^4 `( j. B; q- p
- unsigned int sub_addr_count;
" p/ V+ e& ~- Z$ G* `9 f - unsigned char* e2prom_cmd_data;
% a. N( N& Q9 | Q C' P2 C - unsigned int data_count;
Y, u+ B! n { - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1 C* m5 z8 y' Q/ u- H2 J
- #define E2PROM_CMD_WRITE 24 }! x( g+ F3 E# V2 K
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"* A8 A( ~) `- ?# N
- $ k7 u, t/ r& u8 ?8 K" f$ J" r$ C
- static int readparam(unsigned char *mac, unsigned char *stbid)4 i. S" V( L) l3 Q
- {6 I0 l/ J5 e1 n8 e7 }
- int fd, ret;9 o# W& x! T$ V; ]8 _ {
- e2prom_s_cmd arg;2 J7 W9 U1 @+ U! p% I. r
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);. }6 @% `, _( h1 B
- if (fd < 0) {1 w% @4 r1 |/ l, ], B
- printf("Device %s open error.\n", E2PROM_DEVICE);
. W. s9 A3 B0 H5 R+ E& m - return -1;
9 R6 ]# B: X+ Q8 V1 Y- D - }
8 w$ g/ ~8 R% L& f, R# e+ Z* `' ~ - arg.sub_addr_count = 2;( u9 l7 J9 ^/ q) {$ M7 q5 b' ]( I
- arg.data_count = 0x18;
8 U" ?9 n- J/ p7 t0 R+ ` - arg.e2prom_cmd_sub_addr = 0x290;& H8 t! w$ C1 L }4 Z
- arg.e2prom_cmd_data = buf;
) A7 c4 C9 P4 g" T, W* f - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
. w D/ d$ a+ r# A# Q9 n4 m - if (ret != 0) {
4 [$ [+ c7 [4 u7 O - printf("Device %s read error.\n", E2PROM_DEVICE);& q$ |5 |! f4 a# N' _6 |" L' T
- return -1;
2 x; n9 ~; ~# {% S - }
9 d; W e8 q- s- p - memcpy(mac, buf, 6);) N/ f- D) G1 M) v; \
- memcpy(stbid, &buf[6], 18);
: {0 U+ V3 [& ^/ Q, s. i - stbid[18] = '\0';
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- return 0;: r9 d* `0 t2 }; N
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)% T& O4 K% o N" `3 L) Q, n8 P
- {4 b! |) r- F0 g
- int fd, ret; m& X- L. e+ l- _* h) v* G
- e2prom_s_cmd arg;
$ e# p& N: g5 r - unsigned char buf[0x18];
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: {+ g9 ]9 u6 w- memcpy(buf, mac, 6);0 d% g/ r! l# d- j' ^! f
- memcpy(&buf[6], stbid, 18);0 }& q% ]7 t Z' C! N
- fd = open(E2PROM_DEVICE, O_RDWR);6 ?7 [1 l# B- L) U2 H# w/ Z
- if (fd < 0) {$ y5 |* P) i* ~: d: d9 {+ d
- printf("Device %s open error.\n", E2PROM_DEVICE);
4 P3 t' O$ P+ ~1 \ - return -1;
% C, g. v/ S* n7 T - }
$ h/ Z+ L8 ]1 M6 x' b! V - arg.sub_addr_count = 2;: p% A- P3 d1 R$ C- O' Z& W% U
- arg.data_count = 0x18;
1 f9 d) I: L6 A: k5 ` - arg.e2prom_cmd_sub_addr = 0x290;4 e% D6 L# g' ]2 N+ x
- arg.e2prom_cmd_data = buf;& J1 H6 |5 l/ U' J( I
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
. p' b* L" ?: R1 J - if (ret != 0) {
3 |+ H% H- A% I) N3 k0 l - printf("Device %s write error.\n", E2PROM_DEVICE);7 f5 h: ~' a3 V
- return -1;
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- $ Z7 N4 k q7 N" n, @4 u3 j. _' p+ N
- return 0;1 E2 y: l* z, o
- }
t" N' D+ n& l - 9 [& ?) k0 v$ `7 ^( {
- int main()
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- char c;
3 D3 m. l+ H7 {- K* H - int i, macs[6];
2 c% ]/ X1 e. A7 H# T- d - unsigned char mac[6];
9 [0 v4 e6 l* a# | - unsigned char stbid[256];
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- g1 \. d3 N* k" w- if (readparam(mac, stbid) < 0)# p- F' K9 \5 ~" R* r. u
- return 1; E# A% c+ {/ H: N6 ~
- 1 L: J) `$ `7 G: a
- printf("Current parameters: \n");
( C7 M1 \. [( ^5 I2 j - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);6 J0 T" o3 Q2 X) u
- printf(" STBID: %s\n", stbid);& f/ Z% r$ h) |* {- F% x
- 1 T7 Q; f" f: @1 T: v+ S& y5 @/ k
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");; p. X5 d3 j; v/ Z% g" {* h
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {# f% M+ S( N }# D5 r/ D
- printf("Input MAC error\n");
& V: S$ w* N' m) j - return 1;6 E7 y! h/ f' t% S, {
- }6 V @4 v6 T! m9 z1 T. i+ X
- for (i=0; i<6; i++)mac[i] = macs[i];
; `+ R( E6 g9 q: A- G5 h! c - printf("\nPlease input new STBID: ");
' M/ a8 S5 I5 n: A, w; Y3 c - scanf("%s", stbid);
5 m7 ~; D# \0 K. c6 F - if (strlen(stbid) != 18) {7 q6 Y9 K* ?. n. r4 }6 R9 z
- printf("Invalid stbid\n");
2 q# n& M$ G' F9 j+ t - return 1;
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4 x# L! z' R! g' L6 R8 ~: ^. n+ z - printf("\nNew parameters: \n");& x/ f6 ]' I5 N# A x+ j
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);" X3 ]' o, E$ M& t. S
- printf(" STBID: %s\n", stbid);
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7 {) s% `* c- g9 V' D- printf("\nDo you want to change paramemters? (y/N) ");! R# |3 m* J2 I, e
- for (;;) {$ ?1 i: S- ~* J$ Z$ o' t* V
- c = getchar();
5 v# J9 Z- a2 T; i - if (c == 'y' || c == 'Y')1 D0 z& F. h6 S5 U' [" c! D
- break;& j8 R7 f" n B' q6 ]
- if (c == 'n' || c == 'N') {
$ A3 R' a: K& A5 z" U) i - printf("\nAborted.\n");
/ q* v: F8 K6 L0 d1 d - return 1;2 S) m; ^+ e) C" k1 B
- }
2 D5 e3 c _; ~( l8 u - }
* z) B* ?6 J K/ ?+ a - if (writeparam(mac, stbid) == 0)
: r- f# d- |; ] A - printf("Parameters changed.\n");( Q* N) m1 G2 K9 [$ n/ n
- " _6 C: t s `/ j. Q/ d# t: o
- return 0;( l9 a j. P- E6 D; F
- }
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