本帖最后由 0522 于 2012-3-21 23:04 编辑 % p9 }7 x' C& j7 n3 o
$ m5 I8 b" ]; t# B9 Z0 a' a修改的代码早有了。到今天不会编译。( N8 n' b8 c; N2 g0 C
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
+ j, I( b! a7 v0 t4 H! E - #include <malloc.h>
S5 ^4 X ?- P4 y - #include <sys/types.h>* r: o( [% `" M4 ^* q
- #include <sys/stat.h>
7 t9 t* d! M- R - #include <sys/ioctl.h>
6 M/ t- b. f3 X3 ~ - #include <stdio.h>
& D3 [0 \2 d6 F j6 r/ @9 n% ^/ e% E - #include <string.h>
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- typedef struct {+ c+ z: { x/ ~, e8 I- p
- unsigned int e2prom_cmd_sub_addr;
* K# `, k8 ], ^+ V - unsigned int sub_addr_count;; {& W1 `2 S6 F8 g
- unsigned char* e2prom_cmd_data;, J4 a9 l! I: m$ T |) G" H: ?- w
- unsigned int data_count; O8 [: h' N& V" j! _% W4 ^- T
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1* [0 I1 \$ y# Z2 x" A/ I
- #define E2PROM_CMD_WRITE 29 q0 q% A. V" q% I3 e/ B
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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, ^7 g5 n7 L* D7 h+ z- static int readparam(unsigned char *mac, unsigned char *stbid)
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1 i- e9 a0 F+ `+ g - int fd, ret;' G" J& E U8 O/ Z5 T3 T+ i
- e2prom_s_cmd arg;6 g9 A* o: R b$ q' o2 b+ k
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
" p9 u+ G! N' [: M7 { - if (fd < 0) {3 ~" C4 o8 j' i4 B2 i' a, S
- printf("Device %s open error.\n", E2PROM_DEVICE);1 S( E4 B% ?8 `8 }
- return -1;
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- arg.sub_addr_count = 2;
$ s' O9 A4 d! i n, v# F9 Y* g - arg.data_count = 0x18;6 B: U# M6 ~1 {# k
- arg.e2prom_cmd_sub_addr = 0x290;
; d) a8 i5 C+ v! ^ - arg.e2prom_cmd_data = buf;
8 U) G2 j5 m7 {& @# m - ret = ioctl(fd, E2PROM_CMD_READ, &arg);- ^. v5 x! ~$ b" l5 a' I4 J
- if (ret != 0) {
5 ]# F Z% X# s# D" T* g - printf("Device %s read error.\n", E2PROM_DEVICE);! P( V: n6 b8 `1 b0 B( e+ |: H; c
- return -1;* a0 q/ D- T' K# M& G% [ Y$ J1 J
- }" P+ R) b0 }0 K2 A: n1 N$ h: N7 h. }
- memcpy(mac, buf, 6);2 p* U" y. y& p8 |7 [/ J/ Y
- memcpy(stbid, &buf[6], 18);
* F$ T$ `9 n7 @; z) i - stbid[18] = '\0';+ X: a5 K$ d& x' k
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- return 0;) T! Q5 B# y, o- r
- }8 \6 }) ]; r$ H
% R1 y r/ d Y# A- static int writeparam(unsigned char *mac, unsigned char *stbid)
$ \3 B7 F1 S- ? M8 @! j. m - {
! ?+ F. z' V$ Y) l+ C" ` - int fd, ret;
q7 a2 y6 r; U" a1 R: \ - e2prom_s_cmd arg;
9 \. q8 D7 \4 s3 \6 o: T - unsigned char buf[0x18];$ ]" P7 [. z5 ~5 q( x- D, A1 S
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- memcpy(buf, mac, 6);* F0 _: M; F, ]( |5 k) ^6 M' U% s
- memcpy(&buf[6], stbid, 18);/ U; f# T5 _8 F( L$ h, D
- fd = open(E2PROM_DEVICE, O_RDWR);
\4 K# x0 R- n* Z$ e7 H - if (fd < 0) {
, N) \$ r& b' l( L9 x. W- y - printf("Device %s open error.\n", E2PROM_DEVICE);
/ \- U o* j0 [7 a0 ]+ R4 m3 f; h - return -1;
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- arg.sub_addr_count = 2;
3 C3 x! M% }; I8 I0 z - arg.data_count = 0x18;% p7 ^( M, W: v. N
- arg.e2prom_cmd_sub_addr = 0x290;6 C! V* C) c2 `6 y6 t
- arg.e2prom_cmd_data = buf;
" I+ c; _# m n9 O3 S" _# W - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
+ m" Y# k( j2 c: }7 v. W P- H3 a - if (ret != 0) {+ Z0 e5 X( t# ^( ~) R6 G4 q
- printf("Device %s write error.\n", E2PROM_DEVICE);+ v9 r. C5 c% P9 g3 g( N4 R: |
- return -1;9 f9 X: N+ Y* {* ~+ K" @3 @! q
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- return 0;/ a9 ]( f* x$ F3 h& T0 k Y* ^1 s; ^
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0 {% i' f6 o3 w. P- int main()
& z% H# s7 b5 R' _5 P - {
' ?3 J* |% n4 }2 ] - char c;, I Y1 v A2 [4 R/ M
- int i, macs[6];
T7 G" m) X ~ e) @6 @6 a. q - unsigned char mac[6];
! m( I% {; \1 E1 H' U+ C* x( ? - unsigned char stbid[256];4 z" a2 l4 j A! g/ ]
- 6 @ m2 L) l0 L1 `9 N
- if (readparam(mac, stbid) < 0)
R: e/ B6 \, [% @5 Z: [6 Y - return 1;! b1 B" }6 A, V5 {! S' `
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- printf("Current parameters: \n");
- D& X" r$ k- \- j" S+ } n/ t3 D0 S - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
H3 e: T$ z6 w6 O - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
' a4 [, S( {) I+ X& R, G- k* P - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {/ w6 J9 g# x9 y* B- @2 o, ]
- printf("Input MAC error\n");' s8 j/ E5 y+ _( v7 |. g0 h, t
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];( m' C& r& ]! ?- J
- printf("\nPlease input new STBID: ");, v$ a% e& k- e6 c1 [7 z/ z
- scanf("%s", stbid);
) b) A8 L- {1 _/ i- E - if (strlen(stbid) != 18) {+ B4 ?# A9 _ b; {
- printf("Invalid stbid\n");
1 A+ X" X0 q% s9 z* K - return 1;
- n( S5 s: R# i& `* @0 B7 j - }
1 k0 Y, ?' M `8 e) E, p* Q - printf("\nNew parameters: \n");6 T! j, O Z2 J6 o: i8 ?
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
2 W4 k6 g3 v1 W5 w. J A) i - printf(" STBID: %s\n", stbid);; i. G0 F3 y a" p( J
; o9 d b- q& @+ _- printf("\nDo you want to change paramemters? (y/N) ");/ c3 S- l3 x! a, X/ E6 X
- for (;;) {% ^6 k' L/ k" i, C; o+ X7 U
- c = getchar();
/ A0 @& ~% y) Z& Z! q h0 h - if (c == 'y' || c == 'Y')
3 R0 I& h1 S( r% C/ { - break;' _% \3 w, K" Q% V
- if (c == 'n' || c == 'N') {
( V! j- {8 N4 G1 A4 g% R& n - printf("\nAborted.\n");
& `6 J$ N7 \" L% k" [- a - return 1;
+ s/ V! M" H2 R3 V$ G3 | - }
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- if (writeparam(mac, stbid) == 0) 8 a5 C& b) s2 v% q2 E( X' H
- printf("Parameters changed.\n");
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+ {: T! F4 W4 @4 G4 y: U, V8 u- return 0;
& X$ L, c' v& ~" `5 c - }
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