本帖最后由 0522 于 2012-3-21 23:04 编辑 4 X% Q* l& R% A+ v+ w
. n% u; ]" e& ^2 @" I0 E i修改的代码早有了。到今天不会编译。
. S: Z) O& I5 Z# ^9 s- z$ t: t需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
) m ], Q+ b+ k& P- H2 i) } - #include <malloc.h>
- V: F" V; X) W. ^; B% M: s3 w - #include <sys/types.h>
2 l! @0 O. ?- b; c - #include <sys/stat.h>1 X5 T1 c7 y; s* u! Q" a
- #include <sys/ioctl.h>
% z( m: j2 a X# M5 v* ^5 s7 [ - #include <stdio.h>, ^; |9 a2 v9 ~- j% r* r2 I, h
- #include <string.h>
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% a6 C' B7 |6 c6 \- typedef struct {7 V$ r& U! v" b
- unsigned int e2prom_cmd_sub_addr;- Q/ v: S' w3 a2 ^
- unsigned int sub_addr_count;4 b+ B4 s! l* I8 ~
- unsigned char* e2prom_cmd_data;- d1 ~8 J' z! D) L' p+ @
- unsigned int data_count;
8 T% Y1 X* ^2 O' K+ @6 p - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
. m5 G B( c% k5 W. `) E - #define E2PROM_CMD_WRITE 2
' K, u; e2 O. _6 n* B - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)& g9 c I# W$ @/ o: X3 p
- {
8 n& s( u* g# X& ^ _8 X - int fd, ret;) H' i0 v6 F3 ]2 Z \$ \5 [( b
- e2prom_s_cmd arg;
( S2 P6 E$ m3 v m( q$ S# z+ _' V8 c - unsigned char buf[0x18];4 O$ @& n/ F9 h
) R# ]: c: V: ~. @( j9 y- fd = open(E2PROM_DEVICE, O_RDWR);% Y! b# U1 q6 s n: h5 O9 f
- if (fd < 0) {
( D/ C C8 v( Y2 O1 q9 A - printf("Device %s open error.\n", E2PROM_DEVICE);
. U4 U' n8 C% c - return -1;4 s# _- \0 N+ R8 z
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- arg.sub_addr_count = 2;/ I6 H1 E" z5 o4 K7 `" f9 f
- arg.data_count = 0x18;
# I, l, a' h, ~ - arg.e2prom_cmd_sub_addr = 0x290;
9 u& ~8 r% R q. C0 ~5 b - arg.e2prom_cmd_data = buf;
1 o5 B* {+ _& w2 M1 l - ret = ioctl(fd, E2PROM_CMD_READ, &arg);8 J. N0 h) j. L, ]
- if (ret != 0) {
]0 c" V) h2 L# n8 v" \) i - printf("Device %s read error.\n", E2PROM_DEVICE);
' |5 y: o/ [; M3 x, [ - return -1;
/ C& ]5 I* z+ s/ G0 I- \4 o) @3 j - }% t i6 {9 e8 \
- memcpy(mac, buf, 6);
2 f& t' B, k# \8 H" Y/ o5 V: r - memcpy(stbid, &buf[6], 18);
' g4 R! O( p9 x3 f - stbid[18] = '\0';
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+ f6 b& B' J, S& r- return 0;
3 w6 c( i: X |) @ - }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)$ G; F/ V! W8 w4 x! }6 Y" D( \
- {
; E/ z. @$ W% b& f, X0 D4 a - int fd, ret;8 H m: {& w) ?+ k' X! I" Y) J& y
- e2prom_s_cmd arg;" p) L3 y2 S; T) M2 @' Q
- unsigned char buf[0x18];$ F4 P6 I4 p% \( X! p( ?& Q+ [
' O7 p9 x) ?( m5 |- memcpy(buf, mac, 6);* C4 p' H" j9 L3 `. Q
- memcpy(&buf[6], stbid, 18);
4 \/ x6 \/ F |# T( o$ A; t3 o - fd = open(E2PROM_DEVICE, O_RDWR);
! B$ k3 G6 T# x3 Q- k7 R1 y! w& Y2 f8 H - if (fd < 0) {
* C5 r1 g, E* s/ h/ E* U - printf("Device %s open error.\n", E2PROM_DEVICE);; [ `! D2 z& u" e: w, N* f
- return -1;/ K7 v/ `. @; @6 z7 J
- }
. W9 d" ^1 a( @4 A$ E5 l6 ^' g2 B - arg.sub_addr_count = 2;
$ @( L) ~" p1 u% d& } - arg.data_count = 0x18;- r0 c: }4 ^3 D/ R" e
- arg.e2prom_cmd_sub_addr = 0x290;
2 N7 q; d9 _+ d- \, U2 I/ a W - arg.e2prom_cmd_data = buf;+ ?1 H) s4 a1 g [4 {$ d' W
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
8 P- [7 I/ X" t+ o2 X& m" c - if (ret != 0) {
& F) O+ k1 C# f9 C - printf("Device %s write error.\n", E2PROM_DEVICE);" e, a. K# m9 a: d' w
- return -1;) u3 x2 F4 Z8 C3 T/ N0 [
- }. {2 v0 L8 u4 d+ [
- # h# E% r% \& R; C& y& y
- return 0;* v' U( X: g, K+ D% o6 D P
- }
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- int main()
9 A% Z* c0 ]2 Q, L - {
/ Z1 `! q* L# m: o! y) t - char c;
9 K5 F6 T6 Q$ p2 F% p6 J& [ - int i, macs[6];1 y) k$ U! G( w1 ?( {$ H0 r6 `: [
- unsigned char mac[6];9 V& X, l, e- `$ {+ e# a3 A+ w
- unsigned char stbid[256];
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# ?7 |* Y* D! s- if (readparam(mac, stbid) < 0)2 ?8 ^: U+ ~+ w" F
- return 1;9 o, q' V5 y% i( u
- ) B' H& S( c0 p! B) l
- printf("Current parameters: \n");
6 I. m7 Q. }9 s7 N - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);5 @1 Z' S7 z4 O4 d, z
- printf(" STBID: %s\n", stbid);
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( C6 `2 g. g5 m# f$ ]* [0 o - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
6 _1 N2 ~ f) K. d$ ?- ^ - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {4 z6 ]6 q+ b7 l+ v' @
- printf("Input MAC error\n");
% ?4 A3 M! x, k- h% \ - return 1;+ p$ k. l; E$ W4 F$ v1 S: Q/ L
- }
I4 d7 e. Q0 _3 e. J) S% J - for (i=0; i<6; i++)mac[i] = macs[i];- ]& ?4 X8 v* i
- printf("\nPlease input new STBID: ");3 ^3 L6 `( y C" v% D/ I3 d
- scanf("%s", stbid);
8 X) r6 ^/ x8 E3 \) s) p) E% o. z - if (strlen(stbid) != 18) {( z9 E5 e% { a* P9 E2 P- f9 F( t
- printf("Invalid stbid\n");
2 P; @' W7 m# H2 e - return 1;
5 U* T5 y& v; L: r' @ - }
; q% J5 F$ o) a" a - printf("\nNew parameters: \n");) E1 A' t1 q& u8 Z) f
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
1 t7 }* Z3 _: f0 \ - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
. M& x$ g9 M$ `' l* n% h; c: C - for (;;) {9 K4 e/ ]4 j: r/ i8 s+ \
- c = getchar();% L% W9 k h- A- S* }
- if (c == 'y' || c == 'Y')
* n( [! v+ k, d0 x: a - break;
. }% Y* W9 n" F7 \4 V - if (c == 'n' || c == 'N') {' p. O3 @2 I" `$ a
- printf("\nAborted.\n");
- T1 Q) e+ `! _$ `& B) M2 V" c( ^ - return 1;1 \# ` D' T- e0 c4 B
- }
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- if (writeparam(mac, stbid) == 0)
+ \& y7 c9 u$ D' F - printf("Parameters changed.\n");9 `% ]) c2 L r' u& O, [
7 m( V, @% o# Z+ K O- return 0;6 E8 |. V8 w! k) \, d* ^
- }
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