本帖最后由 0522 于 2012-3-21 23:04 编辑
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2 _4 a( O8 w% t7 \4 J& T+ a修改的代码早有了。到今天不会编译。6 W6 E* b: x, D
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>: r- |) }. N9 e9 w5 t9 z1 ]
- #include <malloc.h>; j; O9 \) m% U/ H! D4 z& o. V
- #include <sys/types.h>9 A: p" j* p; p( D3 u# r9 h! {
- #include <sys/stat.h>8 O; C$ x: D' q B
- #include <sys/ioctl.h>
/ F8 n$ l( n5 z - #include <stdio.h>
* U" [+ ^/ G) z$ J$ f* r9 M - #include <string.h>- S* v8 m/ S: t) I# `. W7 [9 l
- R, |2 s9 z. D. r1 M, A# f$ r- typedef struct {# G: p+ S8 o5 g/ ^! w) Z6 A! q: s2 o
- unsigned int e2prom_cmd_sub_addr;- ~5 z9 Y2 u0 W3 t$ s
- unsigned int sub_addr_count;
$ L C' M2 T9 G0 i' x7 { - unsigned char* e2prom_cmd_data;
$ Q& Q; ]' T3 f! a; y x - unsigned int data_count;
' d& b7 ^8 j/ N/ l - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
; `: P2 Q' ^/ ^ - #define E2PROM_CMD_WRITE 2
/ Z Y B- T& F7 c3 u/ I - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"# R0 s4 E5 w8 S9 l' d9 u
9 O1 [1 t0 B t# d: J; p- static int readparam(unsigned char *mac, unsigned char *stbid)$ E" C# d2 g" k p
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- int fd, ret;
' g$ }; u$ l r- k) K9 x" \ - e2prom_s_cmd arg;. o/ b; i% G t. P# L
- unsigned char buf[0x18];
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6 E, S1 h( j5 ?. D3 K3 s$ i- fd = open(E2PROM_DEVICE, O_RDWR);: [" F1 ^6 k" g4 u# p0 H, N( n
- if (fd < 0) {+ p c5 b8 ~" r5 _8 o+ W D
- printf("Device %s open error.\n", E2PROM_DEVICE);
# K! {2 O& O. {) p5 x% c - return -1;7 t8 I$ K8 K$ g8 v2 O# p# \8 L7 v
- }
* f3 H! `6 d: o - arg.sub_addr_count = 2;
w: @! J% D: j8 D' @ - arg.data_count = 0x18;
# \* i& K; {* Z) Z, P, ^ - arg.e2prom_cmd_sub_addr = 0x290;
, [( m6 G! [# G7 ? - arg.e2prom_cmd_data = buf;
0 M' M+ ?% L- _) h5 T3 `( H4 \ - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
! P D+ F8 O5 n- ? - if (ret != 0) {
; m& V X' Q. l. B% i1 k8 Q+ G - printf("Device %s read error.\n", E2PROM_DEVICE);
- g2 P" P6 B) E O8 X6 z0 W - return -1;
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- memcpy(mac, buf, 6);9 _0 y4 j7 w5 m8 C0 f2 S2 r
- memcpy(stbid, &buf[6], 18);) r5 D2 t" x) [) `+ T- o
- stbid[18] = '\0';; F$ r! H3 K b& y! r! J9 Y. n2 q! j
7 Y# x7 t$ L8 y4 d; ^- a- return 0;( t" `. J! N; h+ `2 Y8 [( q# J
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- . ]. A9 Z: [% H7 O
- static int writeparam(unsigned char *mac, unsigned char *stbid)( [9 l( O# N! H. v" u8 [, [
- {
' a" `8 O3 i! b2 A - int fd, ret;' \" ^5 X9 i( b0 O+ B
- e2prom_s_cmd arg;
$ i7 ^6 j- S; V) O - unsigned char buf[0x18];8 w/ _7 I) C2 ^7 k% [! T; c! o
* W: b: s F6 E- memcpy(buf, mac, 6);
) H8 t' y4 U7 ~* Y - memcpy(&buf[6], stbid, 18);8 \' a3 Q; `+ T* V; }
- fd = open(E2PROM_DEVICE, O_RDWR);3 V: \, R6 A8 ]0 V _6 C7 j
- if (fd < 0) {
2 ], I+ B7 b" j# I) n - printf("Device %s open error.\n", E2PROM_DEVICE);
9 a4 S x$ Y# o! T - return -1;9 ^/ ^) H/ p2 ~4 w0 ~8 @$ N1 N4 W
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- arg.sub_addr_count = 2;
[. y$ ]/ Z5 R, Y1 Y - arg.data_count = 0x18;
& A; u1 _8 f9 n - arg.e2prom_cmd_sub_addr = 0x290;
; W+ z$ _7 y% v( b0 F" ]+ s% q* \ - arg.e2prom_cmd_data = buf;2 _/ h$ W( z( y( k# b0 a
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
) ~- z4 h! ? [6 p - if (ret != 0) {* ]3 t) D- o1 V2 _) l9 Z- V
- printf("Device %s write error.\n", E2PROM_DEVICE);5 M/ k. V: l7 [3 C1 z
- return -1;
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- # x) y# A+ n1 t; ?1 V- n2 C& c& X
- return 0;
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9 V( ?8 P1 ~3 ]4 H5 G Z. W+ a- int main()
1 z9 w8 k, b; s; _6 M V1 ?2 ? - {
+ c& Z% A1 F: ?/ v. P - char c;: ^0 B4 D& @5 `
- int i, macs[6];& l4 r2 g2 ~- k7 i* p0 D! a) Y
- unsigned char mac[6];
/ m4 {5 d, U1 D& ~ - unsigned char stbid[256];6 [! L$ r- B5 O5 s
# T; g1 |, H% q9 `- if (readparam(mac, stbid) < 0)
. {5 v! a1 g5 h6 O% f! v: ~& s - return 1;
& c& n" Y0 A" D# G - / V5 {* K ?5 Z; t6 j4 B
- printf("Current parameters: \n");, |/ Y* U" t. p; y$ X
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);' }, v3 V: K" r* v L$ X# U
- printf(" STBID: %s\n", stbid);. T# S! ?( {' @* H* v$ C" A0 q
- . ^' ?& U0 U' A( Y- q
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");) V) y3 v$ w2 U
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {, P9 R1 z1 ^% g" ^3 q" u
- printf("Input MAC error\n");: A5 B& ?3 x4 [/ Y% s
- return 1;
, x1 ^4 ]$ W$ R8 x- o: Z. Q" x - }3 r( D r" x3 @5 c
- for (i=0; i<6; i++)mac[i] = macs[i];
. ]/ X, V: b7 m; q% N - printf("\nPlease input new STBID: ");
9 {( G$ }, w, `% h - scanf("%s", stbid);
" p9 y& m; C+ m* G! r# y - if (strlen(stbid) != 18) {2 G) ^4 S6 Y+ m3 L
- printf("Invalid stbid\n");
* M& U, e7 ^6 v' t5 O$ B - return 1;) U3 J& N: S6 v( u3 s" m7 p
- }
, ?- K! x6 ?5 ]) [ - printf("\nNew parameters: \n");. D8 e, U7 W' h e
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
" K$ v9 l" p! d! a2 C - printf(" STBID: %s\n", stbid);, e# R B" N% m' L/ a5 Y, C
! }/ ?3 q U8 s2 g5 u$ P: _% b- printf("\nDo you want to change paramemters? (y/N) ");- \! K- m* w% ^# P; C/ I ~
- for (;;) {6 C( c+ D+ N& m' L- D
- c = getchar();9 x6 [# a+ t- E0 O( d8 Z9 {
- if (c == 'y' || c == 'Y')% K7 R% I j9 W: N3 H5 F) f
- break;
( C! g- e/ @ f2 P* |( i - if (c == 'n' || c == 'N') {
) m8 P- E& \& t% M3 p/ j# c0 P9 b: u1 U - printf("\nAborted.\n");: Z2 l# }& ?4 ^0 y+ k, j% E
- return 1;& t; ^+ P% j% X& ]8 {7 R! d; G s
- }3 d- u- Z, \& f
- }7 Y$ D' L: e0 p2 g% ?
- if (writeparam(mac, stbid) == 0)
& y& u% J: w [' K6 ^3 i - printf("Parameters changed.\n");* [4 q& E/ e/ b0 K
6 V0 K. K& f+ O6 B( q3 a. p- return 0;
, y* b. u7 u4 P4 [ - }
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