本帖最后由 0522 于 2012-3-21 23:04 编辑
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. U6 \: j1 W6 \0 i/ ?% ~7 o修改的代码早有了。到今天不会编译。" J; ]' U1 U0 s& c1 t* T
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
. L+ B/ g/ U3 c8 a& S3 ]' J5 @ - #include <malloc.h>
; p1 s y/ P$ K) A8 Y - #include <sys/types.h>, o2 D; n6 v; c
- #include <sys/stat.h>
' ]( B# r' R; I$ k7 \+ u0 A+ l - #include <sys/ioctl.h>! }7 X+ N: ^" d: }# N
- #include <stdio.h>) X* R; Q e J2 ]; p( M4 q- v/ T( I, E
- #include <string.h>
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2 U' ] P% U/ w- typedef struct {) p" u' i# d( q* X3 p! b
- unsigned int e2prom_cmd_sub_addr;
" } ~9 c& C, O1 k6 Q+ ` - unsigned int sub_addr_count;
0 t8 a% {( [' `3 ^5 d - unsigned char* e2prom_cmd_data;1 ^8 g3 F' A0 z+ z
- unsigned int data_count;! S" _; o$ }" D5 \2 I
- } e2prom_s_cmd;, w2 r1 d3 [( k
- 4 n' [( {; T, ~# r" l
- #define E2PROM_CMD_READ 1) G" O# m) ~ ^! }1 i4 C
- #define E2PROM_CMD_WRITE 2
: K7 {( B" O R2 C/ R - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"" u& }1 V0 [( h% O
# x3 x, T6 Z; A* h% F- ?# k/ H( ]- static int readparam(unsigned char *mac, unsigned char *stbid)4 p' \7 i& |6 ~8 n5 t
- {
g6 T1 W' p( j+ l p - int fd, ret;, R0 G& @$ b* {" x* W' Z/ _
- e2prom_s_cmd arg;
" H. [7 q! g9 S4 G - unsigned char buf[0x18];
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. w# T; x- ]% S- I5 C- u1 X% l- fd = open(E2PROM_DEVICE, O_RDWR);
1 p9 ^' W" q w. ^- R - if (fd < 0) {
8 e( r6 k) L8 R/ S0 n; G - printf("Device %s open error.\n", E2PROM_DEVICE);
! a) w7 E9 Y C! Y - return -1;
' Z: O8 o8 L; J3 J2 H; U2 r2 I X; L - }
/ y+ e4 h$ Z" ~' d9 ~5 V. N. a - arg.sub_addr_count = 2;. r3 V# l7 {7 Y3 ~" M
- arg.data_count = 0x18;1 p: o' A+ D1 o6 b9 d5 A
- arg.e2prom_cmd_sub_addr = 0x290;
- t$ G: _7 n1 z; j/ b+ ] X: q - arg.e2prom_cmd_data = buf;# x) v0 T+ ~$ r/ K
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
- {( E' H) Q8 D# ` - if (ret != 0) {. i- }$ V+ ] v, X# i0 j
- printf("Device %s read error.\n", E2PROM_DEVICE);
# u* h8 D0 q0 J3 V* t - return -1;9 o5 ]* ~0 q# h7 O
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- memcpy(mac, buf, 6);
& e( w3 F: {! ~0 q - memcpy(stbid, &buf[6], 18);
( B7 Z( {1 o) S - stbid[18] = '\0';
* ^0 h, c# M: } - # @, x. g8 r8 T7 \
- return 0;% I- ^0 n. b) r) l1 z
- }
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2 W$ w+ {! T; Z$ F' r8 t" D" U. Z- static int writeparam(unsigned char *mac, unsigned char *stbid)
; {% p! G `* W( O. h - {3 u3 t( w5 d2 ~
- int fd, ret;
* R3 b* C x7 a, i: l% } - e2prom_s_cmd arg;; E3 o5 U6 [) O, w- x) \) u: I5 _ G; h
- unsigned char buf[0x18];! q4 n# w; R0 ]7 l8 f( O5 f
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- memcpy(buf, mac, 6);
: C4 _# P: ^3 D6 v - memcpy(&buf[6], stbid, 18);2 A- }- A1 m! z; j
- fd = open(E2PROM_DEVICE, O_RDWR);
* g r2 W I& ]# y/ a0 n+ V7 r: ^ - if (fd < 0) {! b1 ^% f3 b5 ~
- printf("Device %s open error.\n", E2PROM_DEVICE);
6 j6 ~: z" ^" |: S* V7 u - return -1;
+ q% x5 p# U; R' {1 ? W - }
5 i0 x8 Q* u+ v; W# o8 Z) K - arg.sub_addr_count = 2;
: m5 Y! R7 |9 z3 S; q - arg.data_count = 0x18;
+ a- X9 O8 n# c' y& K% k - arg.e2prom_cmd_sub_addr = 0x290;! K$ e X$ a3 x x; S) H( [
- arg.e2prom_cmd_data = buf;
* J6 a' K! U! {* K. ] - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
& ^) k% ?$ q! R* A) C- o5 E - if (ret != 0) {
) `/ H- K. _, N: t( y- C4 f - printf("Device %s write error.\n", E2PROM_DEVICE);
c' j7 H* Y7 m' H - return -1; H$ T1 w8 r& l. d8 u7 V
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! T! I8 D9 b# E7 e7 T# e U# ?- return 0;1 H8 r# f9 M# A k
- }
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& N7 j2 y. U+ f- int main()
9 \/ D+ ?5 l/ h5 b' p; T" G& K - {' I4 O# G. t$ b5 r
- char c;
( r; B4 _2 g9 P7 U! d1 ~ - int i, macs[6];
" @. l3 j' v: D6 S - unsigned char mac[6];5 O. K# y# a; s" y
- unsigned char stbid[256];
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# F. d6 s7 r+ b: d# I5 N- t! f. b- if (readparam(mac, stbid) < 0)
) l7 h& F' U7 X6 O5 w4 w2 i D/ R - return 1;
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) |! V1 {; Y+ i8 p* \) ] `- printf("Current parameters: \n");' D' f+ W* g7 U3 B3 n. X
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);4 L4 [: ~* ?! M0 W2 Q
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
: E0 k i3 ?2 w; M- v - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
5 L y& d: n) Q" w# J9 T8 U4 F - printf("Input MAC error\n");& H: C: A1 f L$ `0 T/ e0 Z
- return 1;
: \+ x' f6 O8 h - }
$ `0 r# h2 X6 ?2 n/ Z! n - for (i=0; i<6; i++)mac[i] = macs[i]; n. Q+ D) }9 P( t' b
- printf("\nPlease input new STBID: ");. g! S) {+ T+ }% l& J$ H
- scanf("%s", stbid);
8 T6 ~9 w7 A M" K' ~4 {3 t - if (strlen(stbid) != 18) {
# ~" p( p: S' E( o- c - printf("Invalid stbid\n");2 W6 k8 w4 Y1 M4 O5 X! z h1 ^
- return 1;% D& r9 n% ?; m4 H# b, b
- }! Q: O3 _% C' }) v. z
- printf("\nNew parameters: \n");" q0 I; H9 g4 y! [
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);+ Z' u' u# s/ l1 P
- printf(" STBID: %s\n", stbid);
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/ T/ M" Z5 j1 Q4 h+ F) z4 h# I- printf("\nDo you want to change paramemters? (y/N) "); ]$ U4 G' V) _4 L) D
- for (;;) {
1 ]* X! u& _7 V) D, L - c = getchar();$ V8 f, e/ J' ]6 E$ z
- if (c == 'y' || c == 'Y')
3 | O3 X. n' I5 s8 m8 N - break;' A( T+ J1 {. a; L# n a" t4 B& D
- if (c == 'n' || c == 'N') {% H8 k n6 d4 ?" ^
- printf("\nAborted.\n"); b. y0 _* Z5 b$ `- z1 a9 ]
- return 1;
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- }( M+ }3 P4 J4 n) ]7 \
- if (writeparam(mac, stbid) == 0)
6 `: h& @3 J# a - printf("Parameters changed.\n");
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7 v; B' h) Y' H2 ?! q; ?, B- return 0;) c/ S+ V1 B+ U
- }
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