本帖最后由 0522 于 2012-3-21 23:04 编辑
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# @' ?- s7 `' J+ }. W修改的代码早有了。到今天不会编译。# T% j; L$ I& g- N6 d) b0 b
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
* h3 _( Q/ C- p" C s0 P" v - #include <malloc.h>
) t) K/ }" D4 Y - #include <sys/types.h>
}9 M7 w) J/ V+ E - #include <sys/stat.h>
$ ^" L( T0 k7 {) V- ]" B7 H9 O - #include <sys/ioctl.h>
/ Q3 F$ k# L8 R j - #include <stdio.h>9 z5 w) k. N' w, h
- #include <string.h>
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' ^$ i7 k8 ]2 g3 a' Z; x. S- typedef struct {6 E$ [. e, _/ ?
- unsigned int e2prom_cmd_sub_addr;5 [" S. J3 v5 ^( T0 j7 u( H3 r. s
- unsigned int sub_addr_count;
5 w: h! r8 I1 P* {0 R - unsigned char* e2prom_cmd_data;8 y' Z+ Z# K/ a
- unsigned int data_count;" \3 E- s2 O- Q7 }
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
N3 k2 G) {$ ^ - #define E2PROM_CMD_WRITE 26 F9 j/ k% {$ W3 S- ~* `
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16") J$ b' z* x% k N" F5 p
- 4 Z4 t7 J6 |2 [5 P/ h- }( y
- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;4 _% n! S0 q( l {/ p
- e2prom_s_cmd arg;7 N7 w( `* m' m7 Z) P
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);1 c/ d/ R0 s( e
- if (fd < 0) {# Q$ S# Q* d! ~( w
- printf("Device %s open error.\n", E2PROM_DEVICE);
& R6 Q+ e2 i0 _- a. E: a$ U - return -1;% f7 _% v. D% e8 j- M% h
- }
2 ]" p5 q. R5 O+ b. O - arg.sub_addr_count = 2;; s- l7 h2 C' X
- arg.data_count = 0x18;
6 `' X# c6 P; T - arg.e2prom_cmd_sub_addr = 0x290;: [; Z& R% D0 g7 \5 H Z1 [
- arg.e2prom_cmd_data = buf;
& t8 J: D0 s: \) e* Y+ j- d - ret = ioctl(fd, E2PROM_CMD_READ, &arg);7 q0 T3 l2 X, t
- if (ret != 0) {
- Q4 [# x- a3 ]6 D: v" J2 s - printf("Device %s read error.\n", E2PROM_DEVICE);$ z1 d" _* b* g9 H s8 P U
- return -1;* V/ n0 l& j" d6 G; N7 n
- }
5 o! @9 y' V/ T& O - memcpy(mac, buf, 6);
% T3 x2 r5 `/ \' U' @0 }$ x - memcpy(stbid, &buf[6], 18);
3 o7 A0 K3 z' [" y+ T* z - stbid[18] = '\0';
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- return 0;8 u0 ~. K* s. H) K7 ?
- }
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) b4 I4 D! V9 |- static int writeparam(unsigned char *mac, unsigned char *stbid)$ ], f( C R% {3 N7 ~5 v6 ` V7 ?/ W9 E
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- int fd, ret;$ `" S# b! b# n" w; H. K
- e2prom_s_cmd arg;& K# @$ _4 g+ S+ {
- unsigned char buf[0x18];5 z, t: h+ [' ~/ i" n+ f E
- F2 j; \" y$ ?4 D- memcpy(buf, mac, 6);% N) P. ~/ ^+ g9 S5 R, z: X
- memcpy(&buf[6], stbid, 18);8 u: j) u$ N5 ?9 v
- fd = open(E2PROM_DEVICE, O_RDWR);! L! m o- T$ c! [4 Q; n
- if (fd < 0) {6 I. Q k4 _ b$ \& U
- printf("Device %s open error.\n", E2PROM_DEVICE);
' k, C7 b6 U' n$ m" K - return -1;
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- arg.sub_addr_count = 2;9 H3 ~1 i( P3 |. N: n+ q
- arg.data_count = 0x18;& ^' M& D8 \$ c' l
- arg.e2prom_cmd_sub_addr = 0x290;
8 _( B1 G. t$ W& u8 e: r) { - arg.e2prom_cmd_data = buf;& P6 A! [5 P, l6 @; v5 R
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);: x9 V" Y- M3 n& d# [
- if (ret != 0) {
; Q7 Y8 z* L! {( R+ T( | M& S - printf("Device %s write error.\n", E2PROM_DEVICE);
0 X8 D+ b' o* K - return -1;
0 ~6 Y/ S9 e8 j* o/ Z - }
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$ w$ P5 w6 ?- O# X6 o* v$ I- return 0;
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) f) d1 z: I- d) A- int main()$ z% e/ m4 c! \8 R, k
- {
4 U: B4 V) B3 u' Y- t9 Z( N - char c;
2 `9 O% P, w" e3 e7 F/ P+ r9 Y - int i, macs[6];/ V: n9 T6 ?! `2 q- H
- unsigned char mac[6];
; O& q3 S' u# `# A2 C3 ~ - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
' {# f; f* E! ?+ c% f# O - return 1;
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- printf("Current parameters: \n");& V8 v9 c& p: T
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);" X# e2 e3 n+ q6 r
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");7 q2 Y/ m" S$ J# o
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {. m( R6 E9 g d1 f) s A
- printf("Input MAC error\n");2 I0 k+ N" \3 T. t+ D
- return 1;
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8 ^5 K! N, K1 j8 a- x - for (i=0; i<6; i++)mac[i] = macs[i];2 p' h/ y; o# G/ h. P
- printf("\nPlease input new STBID: ");
5 \. [1 W; E% {4 X4 } - scanf("%s", stbid);
. Y! j9 C% S5 t- g1 u' o5 v - if (strlen(stbid) != 18) { m6 |: t: Q( y" P) \& }
- printf("Invalid stbid\n");% q6 r; \$ u' R. ^
- return 1;! N6 M) u. K) e/ W7 q
- }9 W/ C n/ v# _ h! H
- printf("\nNew parameters: \n");
; P; _2 ]; y( ?( d, | - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);# j! X6 F: }8 \4 P1 G
- printf(" STBID: %s\n", stbid);6 `' U$ e! x0 H! N F2 I5 t: q* }. J. o
- 0 @. A1 Y4 [8 |' e) x% H; v' h
- printf("\nDo you want to change paramemters? (y/N) ");1 Y% C/ {5 k, Q! e* J
- for (;;) {
! o* T: f# A. o, t: _ - c = getchar();
. E. L3 _# z! C- x - if (c == 'y' || c == 'Y')
$ g0 A$ h- `; k3 H - break;5 A% a" r6 _$ u8 C
- if (c == 'n' || c == 'N') {# @8 o$ S- w8 P2 J: y
- printf("\nAborted.\n");
: }/ S( K8 s& r; X - return 1;
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- }& Z# w" N3 I' i3 y
- if (writeparam(mac, stbid) == 0) 4 y6 A( n5 y; a5 M) T
- printf("Parameters changed.\n");# g2 [; l" g; k
- Q* o+ U' H [/ \ d- return 0;
, E* `# \% s, E! w - }
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