本帖最后由 0522 于 2012-3-21 23:04 编辑 6 D; O2 }( C0 I* o& M
; Z/ ]2 `: W4 [" m1 S% J2 l! e* o0 b修改的代码早有了。到今天不会编译。
% p; H. B; R- _+ l2 b3 f/ t2 C需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
: M! c( X" Q' e, i) i1 ~' [9 U - #include <malloc.h>
7 J: D& u0 g1 E4 W& } - #include <sys/types.h>
: R3 I; A8 u e8 S9 c7 A - #include <sys/stat.h>
" w! ]9 ?3 U) ]& T' i - #include <sys/ioctl.h>: N% u6 h2 F& E% n% q. c+ F+ x
- #include <stdio.h>/ t4 q2 O$ P, y+ v* w! Z. x- k
- #include <string.h>( ~7 L, G" x7 @0 e
- ; G4 K# n. P5 v. t m# i$ G
- typedef struct {6 q" V$ D4 B( i
- unsigned int e2prom_cmd_sub_addr;! H) w! h7 {; W4 z* \$ y
- unsigned int sub_addr_count;
9 e- s9 f( N( r( s$ D6 r9 ?. F - unsigned char* e2prom_cmd_data;$ j! L8 _2 v+ \2 Q
- unsigned int data_count;& P1 P2 l+ U: _4 F- N! n+ E$ p
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1' U; j( f/ P1 J0 P( ~9 H" r
- #define E2PROM_CMD_WRITE 2* Q! Z' ^; C0 h
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"* k& Q" @' U8 Q" n! h
& u& i6 j7 M) u- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
. A; U: `3 ^8 C% V. J - e2prom_s_cmd arg;
& Y% o+ @9 b# J - unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
7 D% G7 |. M! E, O# |3 D( B0 X - if (fd < 0) {
1 z+ b/ O. [$ g* t3 T: s+ g( Y - printf("Device %s open error.\n", E2PROM_DEVICE);
- N6 i8 M* p2 t7 z9 `4 E4 I- r1 V - return -1;
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- arg.sub_addr_count = 2;
# G" _2 X' i S* s. q2 t! K - arg.data_count = 0x18;- X0 _2 t& |0 [; _" T9 W
- arg.e2prom_cmd_sub_addr = 0x290;8 P3 }$ C- g- X3 x- {0 P P5 C
- arg.e2prom_cmd_data = buf;
9 x/ J) q4 h5 ]3 b - ret = ioctl(fd, E2PROM_CMD_READ, &arg);6 {+ o1 g3 P) k$ b
- if (ret != 0) {
, A' S1 P9 E! v' _6 a) k) K - printf("Device %s read error.\n", E2PROM_DEVICE);; F5 p, M6 x9 A1 }
- return -1;
% S3 g# S- ?5 s8 J" Y, ~3 ^+ ~ - }
' Z+ r# v6 h' U) b+ a2 D - memcpy(mac, buf, 6);
7 Q9 e. e6 z) g- v - memcpy(stbid, &buf[6], 18);% T8 }# h9 ~; t" P$ B& P5 L
- stbid[18] = '\0';5 t, n+ M4 U! u2 C* S9 k. l2 E
7 S0 }( }9 d# g1 {1 X) M- return 0;
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( ~9 S+ b& W0 h- static int writeparam(unsigned char *mac, unsigned char *stbid)
- H" g% P8 f1 A - {
% ?& g& P( G: l c6 t9 M- S, l8 [ - int fd, ret;
9 \/ V- s {+ V. J/ S& D/ V6 k - e2prom_s_cmd arg;
: R0 Q( [$ Z) e! r1 l+ }5 } - unsigned char buf[0x18];
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6 j; u! G2 L6 p& s- memcpy(buf, mac, 6);% n7 D6 k3 j4 X' x: C- O) q
- memcpy(&buf[6], stbid, 18);
4 V9 |8 Y' f% g0 t% a4 y+ D - fd = open(E2PROM_DEVICE, O_RDWR);- T; A% ^+ d3 N' t. z! \& L- {
- if (fd < 0) {4 ^( z; I( R% z) N5 h
- printf("Device %s open error.\n", E2PROM_DEVICE);
* f* S9 \5 R( e- x s - return -1;
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- arg.sub_addr_count = 2;* ?/ i- ]" x8 U5 \* Q, t' u: |
- arg.data_count = 0x18;
1 m1 p; @4 M1 r# ~# U - arg.e2prom_cmd_sub_addr = 0x290;" h' r3 S; m! D8 \' h1 Y8 E
- arg.e2prom_cmd_data = buf;4 z3 m: ] x; {+ \4 S" s, `
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);' t! o0 ^- T8 d
- if (ret != 0) {' m1 j; x, k% I* S
- printf("Device %s write error.\n", E2PROM_DEVICE);
! r3 L! X1 M5 `" e( O - return -1;
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- ! m: [, P! ]2 h# c1 Z( v
- return 0;
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5 V- A+ ^2 Q s. k; g, [* |2 K. `- int main()
% b# u; r& p9 A+ ~, c! p - {
" I# \& Q2 `& ^, U- p) K - char c;4 m# C4 f0 j- q$ F- H4 B
- int i, macs[6];% f- S2 H5 F; v* n. }: K1 b
- unsigned char mac[6];5 Q+ e/ V, A/ B* H. o" ]
- unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0); _" ]3 U- P, Z: ~& y
- return 1;1 ^2 i' `0 k S4 W
- ' B; |: E) y7 d! F$ n
- printf("Current parameters: \n");
! n' p1 g& W/ I) r - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
& n% L8 {2 p; t- m - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
7 u1 S S1 \6 ]- M8 C5 x - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {; y* ~" | o+ E7 {9 v: t
- printf("Input MAC error\n");) T" ?' U+ C; h. w, y1 {
- return 1;5 \8 r& g2 M" h) I( p
- }
$ ~* X' y9 S: W5 e; S) C - for (i=0; i<6; i++)mac[i] = macs[i];
5 C7 p/ F- }# o m( M- }, | - printf("\nPlease input new STBID: ");
& V9 ?. i4 z* N - scanf("%s", stbid);
! w+ y2 w9 T( A* z5 H - if (strlen(stbid) != 18) {$ z$ ^& O, r3 \ I [7 V! Z
- printf("Invalid stbid\n");
% w& b* C$ m M) l8 { - return 1;
" a( e6 t7 X+ Z V- Q' {- H: b; H* n - }
6 ` L3 ` @: O5 C% j2 C9 t. u7 L - printf("\nNew parameters: \n");
$ u$ B+ p7 g% O0 ~% L: R! w - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
& p6 ^" Y3 ~( s - printf(" STBID: %s\n", stbid);
. g& j% T# X! ?
# ^% U9 d2 W6 H- printf("\nDo you want to change paramemters? (y/N) ");
|4 P0 q7 u) x" ]8 t; ^7 |% l - for (;;) {" F' D+ w( Y* `- \1 D
- c = getchar();
/ l- G# i/ v2 U! X2 l, N - if (c == 'y' || c == 'Y')
1 S, `. J2 m% f! R @& h - break;
2 l# u, M' R3 o1 n9 r9 S/ P9 ` - if (c == 'n' || c == 'N') {
) d: ]. ^8 P% A& U2 m) h - printf("\nAborted.\n");5 A6 T3 u1 D) r5 w( N7 G n6 N2 O
- return 1;
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- }+ c4 ~7 m4 f. v" R. K& b6 v4 m$ K
- if (writeparam(mac, stbid) == 0)
* D H j0 [2 M# g! M6 p- R - printf("Parameters changed.\n");
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! Q$ c; {: c1 ^- N M3 t* Y) x- return 0;& P7 f }6 v* j, X6 k2 E% t+ B
- }
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