本帖最后由 0522 于 2012-3-21 23:04 编辑
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' z8 |; }. B2 g! l4 \修改的代码早有了。到今天不会编译。5 k m2 X: ]- j: i8 w- S& @5 y8 t: Z
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
. C8 m, v. H" e, Y - #include <malloc.h>
/ a% N. n9 b2 \* d6 Z( { - #include <sys/types.h>
8 t/ H, j1 F5 g4 `% y: h# C1 h - #include <sys/stat.h>
9 S( W7 e% s; Q - #include <sys/ioctl.h>
2 y; ?( m% h" a+ b - #include <stdio.h># q# a: x6 |% {! ^
- #include <string.h>& P! s) p) H# N5 _% ]
- # Y% W5 O/ U2 A3 H. ^4 I* D, p
- typedef struct {
# L) l& r6 k8 d1 h1 K6 r - unsigned int e2prom_cmd_sub_addr;
! j# ?5 S9 V; d2 h8 X4 u2 f: w - unsigned int sub_addr_count;0 u6 {' z, C. n/ }" V9 P. i
- unsigned char* e2prom_cmd_data;
3 f. d- j8 [- [ - unsigned int data_count;6 |7 ]4 x: i9 V- f5 @8 N% r
- } e2prom_s_cmd;
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3 d U. j5 F1 [- K2 L- #define E2PROM_CMD_READ 1
9 V8 S4 X s. p - #define E2PROM_CMD_WRITE 20 ^. c, y0 R+ k9 ?0 ~0 P
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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/ `# Y! X! d# N! [) S- static int readparam(unsigned char *mac, unsigned char *stbid)+ e4 c0 o @* _2 ?& U
- {
1 F1 ?) H- D, L - int fd, ret;7 f- n7 @3 Q" S2 A( |
- e2prom_s_cmd arg;3 s2 f% B$ ?4 q7 O5 I: h7 V( P2 k
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);+ }1 I; w- v% @9 J8 c& i4 k
- if (fd < 0) {
; A1 s2 [+ `4 ^0 s - printf("Device %s open error.\n", E2PROM_DEVICE);
( Y+ c: _3 i2 g9 X - return -1;
$ d6 o3 X- L! N) h# g% V3 {9 H- m - }
+ r9 Z4 J6 w. _+ Z - arg.sub_addr_count = 2;& T1 ]8 E# m/ P2 L% L6 D
- arg.data_count = 0x18; ^: q$ j8 D% K9 r4 v `7 }- ]6 R
- arg.e2prom_cmd_sub_addr = 0x290;
* r# z6 N0 d9 o6 | ?! R2 Z - arg.e2prom_cmd_data = buf;' n/ K% b( ?6 |* e/ k8 E( ~
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
4 w$ q1 V8 p4 I+ N d n5 C - if (ret != 0) {
! A6 j# {; n0 S+ q% G( }# r - printf("Device %s read error.\n", E2PROM_DEVICE);
# g6 |0 U r% v - return -1;
8 U& z) D& g3 z* o; w, D3 l* d- ~. n/ ` - }
* w N9 k- P0 Y# U/ { - memcpy(mac, buf, 6);
. f8 Q- M) `3 A' y/ X - memcpy(stbid, &buf[6], 18);+ |$ s( O# l- J8 Q) H$ t6 E; Q
- stbid[18] = '\0';
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- N" y# s9 ~+ D" \1 g2 w- return 0;
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( A& N- g7 z% M( i% Z+ W- static int writeparam(unsigned char *mac, unsigned char *stbid)8 f( |. \8 | [+ N' r5 {7 |
- {
0 f9 G0 `! l( q8 Q - int fd, ret;
* m" |, Y$ I/ c: o# w+ n! b* }# E - e2prom_s_cmd arg;
/ f. ~4 y! L/ D- k# W3 z - unsigned char buf[0x18];5 a3 P' D9 m) |9 D8 ?# u0 a. j
' `: C o# N, l- memcpy(buf, mac, 6);+ V; z7 U3 g" H( E7 C% I
- memcpy(&buf[6], stbid, 18);0 l o6 S# i3 {: h- h/ ?
- fd = open(E2PROM_DEVICE, O_RDWR);. v5 l3 z4 x- u' A' q
- if (fd < 0) {
0 k' [% X8 D9 k2 S8 U* g$ A - printf("Device %s open error.\n", E2PROM_DEVICE);
3 t# | Y: i2 a$ W& | - return -1;
5 ?$ [. p5 }9 @2 f! C! Q( j - }* s" X& W; c2 Q: C8 |( \
- arg.sub_addr_count = 2;
. z3 w2 a, [5 U7 C% K - arg.data_count = 0x18;7 K& h5 h4 Z. g* H' P" a
- arg.e2prom_cmd_sub_addr = 0x290;
! n3 M* r' M2 Q/ L+ ]' b - arg.e2prom_cmd_data = buf;* r! G9 z' p" _+ I
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);4 x6 [& Q8 {* K. u$ x% |# P( [
- if (ret != 0) {
" x, G) h9 ^2 L9 W3 I8 p - printf("Device %s write error.\n", E2PROM_DEVICE);- f6 F2 P( H, y X5 |' v
- return -1;' C9 u. r% }% u
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- return 0;/ H8 h) U1 e& e% d6 K# g* Z7 }
- }
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- int main()
$ w! b5 K, F# m4 N4 Q7 D- H5 ] - {
( Y; R1 K& r; m9 {( p - char c;
& k2 ]" Q" i/ O& E5 ` - int i, macs[6];
( Y" x. @8 @) Y4 p8 W1 u2 Q8 a. k - unsigned char mac[6];) t6 b; I' w- s4 i
- unsigned char stbid[256];6 H; H4 r: \4 j5 E
5 J% O m3 w0 `" T' N2 g' i( @- if (readparam(mac, stbid) < 0)
5 t4 Z/ ]4 w% }- ^( S - return 1;4 d* ^' @3 o. Q5 O
- : K7 O( v* b% B, u) n7 _" Z9 Y6 y
- printf("Current parameters: \n");
3 _* Y3 h- }" I0 d( h1 a6 d - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);* j2 j/ |) b! G' d! o
- printf(" STBID: %s\n", stbid);
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1 w2 q! s8 a+ u9 S- R; `0 `9 N - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");( b+ e/ m6 N! b3 O9 a, c/ {
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) { P- m" A; d8 g8 i4 ?
- printf("Input MAC error\n");. q/ i8 M1 m- d9 K. D# J
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];/ y, l. h+ m; ?% u; s
- printf("\nPlease input new STBID: ");6 e" ?8 d! P# C% _8 Q/ p
- scanf("%s", stbid);
) A- q$ O e; a; g% @ - if (strlen(stbid) != 18) {
A# z1 Y. l, b, ]* V( r7 Y - printf("Invalid stbid\n");
5 p- o' q, c5 } - return 1;
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- printf("\nNew parameters: \n");' V: u) g: F" ]0 y
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
, T+ F H6 ]) f! O - printf(" STBID: %s\n", stbid);3 v+ z0 _& H/ O4 A2 A2 e8 c
, \, ?$ `6 ~0 B, b/ a' w- printf("\nDo you want to change paramemters? (y/N) ");
1 l3 s4 U% f5 O3 t. ^( s - for (;;) {
/ O1 E2 s6 g% _* j. W/ p8 W - c = getchar();
6 Q& Q/ H; u( a - if (c == 'y' || c == 'Y')8 R( }& g& H3 U9 T. W. P( X
- break;
' s) i# t/ U7 ` N: H$ O - if (c == 'n' || c == 'N') {* V% e5 O# V% _
- printf("\nAborted.\n");- O4 O- J3 [8 G6 f- C8 D6 F7 U
- return 1;
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- }
! t6 a; p+ w* f1 V0 u) y; D - if (writeparam(mac, stbid) == 0) 0 g" q9 U# b) @7 w1 F2 M& P) a6 m
- printf("Parameters changed.\n");
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- return 0;+ V/ O1 m2 o7 y
- }
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