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。
- c& W$ `2 |) T0 W' }+ N- b. C7 ^% p8 G需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>3 s6 N/ I2 e. W. G
- #include <malloc.h>" S( q# I, k- |# V8 a X0 ]: u
- #include <sys/types.h>
- p3 ]. _2 l6 J7 @9 {$ G7 K+ C - #include <sys/stat.h> y4 L2 }9 y, [4 x# X
- #include <sys/ioctl.h>( s4 g: M; C6 K2 s
- #include <stdio.h>$ U) c. d; b: t) d# s7 R* K
- #include <string.h>
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% W. _: x% T, R7 @6 O; l- typedef struct {6 }: d* L( T. A
- unsigned int e2prom_cmd_sub_addr;
; \# V- U& t/ _+ |, N3 L6 C - unsigned int sub_addr_count;) A! @" C- V/ p- W5 i& N' s
- unsigned char* e2prom_cmd_data;
+ k% U& j$ ?; J - unsigned int data_count;
6 d- Z+ l$ @! @0 L7 H" G7 p3 u4 G - } e2prom_s_cmd;% `$ t2 q I. n% ~2 L9 s o# _
N3 y$ O! j* w: S. e, k- #define E2PROM_CMD_READ 1% i5 G w. m7 Q; P( z+ V
- #define E2PROM_CMD_WRITE 2
8 B' v3 |3 Z( y; m) ?, z: | - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- Z$ C$ H' P- u- static int readparam(unsigned char *mac, unsigned char *stbid)! }. {- T0 {, {4 I. t6 g
- {- n! f1 T5 |. X& ?9 }
- int fd, ret;
9 o: E' A A: ^3 s# v% R* M - e2prom_s_cmd arg;$ a: N) o; n# y
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
- \* | [+ I9 f6 N; p - if (fd < 0) {" S, c! q& W4 e
- printf("Device %s open error.\n", E2PROM_DEVICE);( Q8 k" U9 U! I1 l2 E% S7 o
- return -1;
- C4 _% P( g+ n7 t9 L/ u - }3 z' ^$ L5 K/ i2 l: W
- arg.sub_addr_count = 2;
5 {! e1 q5 h& H0 U8 Z) n, Q - arg.data_count = 0x18;
! [8 z2 O/ D# q/ y' i; S - arg.e2prom_cmd_sub_addr = 0x290;6 p1 h: k* f$ o1 C* Y( A3 ~
- arg.e2prom_cmd_data = buf;
6 }( U; a7 g$ M. D2 T% n - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
! n6 A" I; j8 h% o& w8 p - if (ret != 0) {
$ l: p1 ^. W$ Y. S - printf("Device %s read error.\n", E2PROM_DEVICE);
, }% K! [2 u7 q3 u* t - return -1;% E( d& ]5 j9 o% f. }% n! A9 w
- }
% o* l' I5 |3 { - memcpy(mac, buf, 6);
+ `7 q3 F- u2 h6 d - memcpy(stbid, &buf[6], 18);
5 B" g) A+ Q( Y( Z) H3 s - stbid[18] = '\0';
+ @" D$ ]' D" l6 {" u+ d - ' h- E |. a4 f. ]- v! v8 E5 e
- return 0;; W, L/ `. n6 X, F# y
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- $ |5 i, u( Y7 L6 H/ m
- static int writeparam(unsigned char *mac, unsigned char *stbid)
9 ]! P# z- O; S9 n - {
- u0 }: H4 P/ C9 H C - int fd, ret;' ~1 T9 y$ T# ?/ z
- e2prom_s_cmd arg;
1 w+ w) V% n, c. l - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
! x" T) u% X7 {2 j& X9 W - memcpy(&buf[6], stbid, 18);) ]2 U) G, c- O: c, r7 e2 m
- fd = open(E2PROM_DEVICE, O_RDWR);- [7 q' e0 l+ j5 s1 S; H
- if (fd < 0) {" [$ _" m0 s" Q' K
- printf("Device %s open error.\n", E2PROM_DEVICE);" h; [# m& G" r/ ~; C; o
- return -1;: w8 u: z; i8 D% E+ Q f; I4 }
- }# d0 ~+ {. v2 N) f: \
- arg.sub_addr_count = 2;; F9 W3 N0 u; |! N$ E
- arg.data_count = 0x18;
4 u, g0 T9 a1 F, q - arg.e2prom_cmd_sub_addr = 0x290;" F' ^& R( G u# c X# q3 W( L
- arg.e2prom_cmd_data = buf;% F+ E/ g3 Z0 S0 @
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);; O. f* b* N; B" _6 i) N
- if (ret != 0) {8 e, Z8 h/ g5 c3 ]7 i2 J
- printf("Device %s write error.\n", E2PROM_DEVICE);
. A7 V4 E: E" r# D/ ` - return -1;
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6 _ @- A! r# |4 L ]9 @) F# i- return 0;
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- % J; |5 w9 S: T+ m( |+ ~
- int main()
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- char c;& v( V+ [$ l) u- E" O
- int i, macs[6];
! A; u v! n% D6 A - unsigned char mac[6];' Z& N i9 w/ F# p" R
- unsigned char stbid[256];4 R6 ?- K3 n, L. E' s
6 K( G0 Y& {( p& t$ O6 H- if (readparam(mac, stbid) < 0)
* L3 m( X% a; s - return 1;8 d1 A% z" p& I5 {5 \0 s, d
5 ?' T% x. a0 D) T$ A1 T- printf("Current parameters: \n");
& b; L7 s8 q0 j5 }! d3 G# _ - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
1 k4 |& i( |9 K+ x - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
/ N* A$ ?+ z4 @9 u - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
9 w4 c F; a! j3 M6 @, k8 v* c - printf("Input MAC error\n");
$ C4 l% k c7 N2 }* W6 j - return 1;/ N$ {% ]7 Y) L% i! C* |
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- for (i=0; i<6; i++)mac[i] = macs[i];0 n/ l" d3 p% A* z+ V+ } e
- printf("\nPlease input new STBID: ");$ ]# f8 o |' j7 }) h# E
- scanf("%s", stbid);
: R8 r1 v, y% p4 P( Z - if (strlen(stbid) != 18) {
5 w/ ~- y, q0 a2 ]1 k2 Y2 j5 O0 ^ - printf("Invalid stbid\n");
6 R( u" \- _1 V; R - return 1;3 F& W9 U" a8 b) v- c
- }0 P+ z+ d9 S! {( ]) N2 q
- printf("\nNew parameters: \n");0 \6 Q% v" P1 q
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);9 v- p* k+ v# g
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
+ @. _1 e$ o% v6 t7 q - for (;;) {# V6 [' A0 {' a: \: j9 N g: D* u
- c = getchar();1 D: f# r- t* d; s2 b
- if (c == 'y' || c == 'Y')- I e% ^ w" F" r* W/ c% w/ B
- break;; q/ n; Z8 W" x
- if (c == 'n' || c == 'N') {
, i9 W s- {% B7 y - printf("\nAborted.\n");% |2 P$ Q0 I# Y0 P) [3 \- z
- return 1;
. z$ }4 C @9 w) |' \& P2 O. \3 B1 ` - }
! M+ W- H0 x& E v - }
1 |- h7 {% i2 y" E* j - if (writeparam(mac, stbid) == 0)
/ X+ d% ?' G9 C+ e+ G% p; b9 n - printf("Parameters changed.\n");( c0 {+ ]4 o# L6 u
; ?, |1 ~; ~8 d7 f- return 0;6 Z; V$ y0 R% W. Z
- }
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