本帖最后由 0522 于 2012-3-21 23:04 编辑 " J9 G8 o7 E% Y- {2 a2 S
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修改的代码早有了。到今天不会编译。
" F. E9 D9 A$ [需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
5 n- \' _0 Y! j7 }9 Z - #include <malloc.h>
. m0 d, a, s3 m1 C6 b - #include <sys/types.h>
8 L( H% ~- s f2 s/ N% e# o: ? - #include <sys/stat.h>5 O9 w @6 [+ N) S9 {4 l
- #include <sys/ioctl.h>) Q# i7 Z5 |* t8 @/ B* l" ~2 _
- #include <stdio.h>4 U% G8 c: [5 d2 g A
- #include <string.h>- W! i' t1 G3 h
% X+ f: _+ B# k: B, j9 |& P7 j- typedef struct {4 F9 c$ J; r2 W
- unsigned int e2prom_cmd_sub_addr;
7 \3 n( V: I6 o: A: }* Y2 a# A - unsigned int sub_addr_count;
) ?9 T# \* a6 l1 G; e - unsigned char* e2prom_cmd_data;
1 T* [/ }9 u3 K% e - unsigned int data_count;
/ ?% V% g; D' e9 _ - } e2prom_s_cmd;
7 s. M- o7 Z3 N/ Q# z - 3 H* l X/ L: @
- #define E2PROM_CMD_READ 1/ j# W# b: r3 P/ k
- #define E2PROM_CMD_WRITE 2
. d% Q; x4 a7 ^, b9 ? - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16": T0 t, ~& j+ E' \$ v+ B# Z) O
- v/ K0 S' F! k8 K' H2 q- static int readparam(unsigned char *mac, unsigned char *stbid)
( P5 s* M! p3 n8 R, W5 u2 o u, x - {
' O' J* x, ?2 Z7 |' s3 ?4 m - int fd, ret;
5 O0 H+ R) Z" |0 @6 o( ] - e2prom_s_cmd arg;% q4 b7 {2 ]: N: S
- unsigned char buf[0x18];
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1 v5 L# [: Z# o, S/ G- fd = open(E2PROM_DEVICE, O_RDWR);" k) M6 O! A! G7 C: M
- if (fd < 0) {$ N$ p0 f$ h0 x1 l5 @3 V, M5 O
- printf("Device %s open error.\n", E2PROM_DEVICE);
/ o) e& R; E2 Y: A8 _ - return -1;7 V6 s' ?9 p2 `0 k* V. Y
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- arg.sub_addr_count = 2;+ t$ F! i2 v. t' i- P
- arg.data_count = 0x18;
0 K0 b5 w! A: g. ~' { @ - arg.e2prom_cmd_sub_addr = 0x290;' ~- U5 `4 y+ t5 a# c0 h4 r; A+ r
- arg.e2prom_cmd_data = buf;
) [+ S! V, t2 H7 N - ret = ioctl(fd, E2PROM_CMD_READ, &arg);/ R8 U7 A0 Q! y) f) |
- if (ret != 0) {
' R/ q5 J: V6 u5 o - printf("Device %s read error.\n", E2PROM_DEVICE);
* h- k" H0 k# W7 B$ u) }" k - return -1; |7 ~5 f1 K" s2 W/ _3 D
- }
0 }7 O9 z1 x' y0 I+ K Q( R1 l- o+ x; [ - memcpy(mac, buf, 6);
6 A* D l! Y. Q: Q6 b; Y" v( ? - memcpy(stbid, &buf[6], 18);1 O$ e5 T/ @: `* q
- stbid[18] = '\0';& [+ Q" w! O3 V" s( W" {
* u+ `( w. N( c2 z' J# q- return 0;& K; \5 f5 ~ e1 u5 m: y
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# R) D# @( X4 d. K p/ X- static int writeparam(unsigned char *mac, unsigned char *stbid)
+ Y2 a7 z7 a+ U ?8 a; k9 }/ q - {
/ s. G5 s% p% A8 w - int fd, ret;5 ~1 ]( I: G7 h0 E9 z8 b: |9 F
- e2prom_s_cmd arg;
: _8 C g2 ^# b5 A! d7 \( Q. n- y0 j& a - unsigned char buf[0x18];: g) K6 v; R6 Z. ?1 j( e8 x! ^. y ?
' Q8 j: i: ~1 X! e+ |* U- memcpy(buf, mac, 6);0 L# D1 q* \" q7 P/ u
- memcpy(&buf[6], stbid, 18);9 f0 V& }! a" j* I: q" C5 d
- fd = open(E2PROM_DEVICE, O_RDWR);
2 `, [- n- a6 W0 s7 `: r8 H& { - if (fd < 0) {4 f6 H y! p$ ]! a) b& O9 O9 i
- printf("Device %s open error.\n", E2PROM_DEVICE);
/ k: H* M2 `5 n8 j1 A; [7 _ - return -1;
4 w* L0 z* ] t5 m h4 k - }' `; \ l; D- s; z2 i' A$ U7 c
- arg.sub_addr_count = 2;
. ~: Z5 z7 }/ e0 }8 J# R- P - arg.data_count = 0x18;0 ^9 [- o: t6 c" O+ j: W5 p3 w& I
- arg.e2prom_cmd_sub_addr = 0x290;
6 y% ^0 \" A& \, k3 v! u- P# m - arg.e2prom_cmd_data = buf;
4 M- V0 j. K7 \3 [) ~ - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
5 Q, d# e! \: f/ S& _4 B - if (ret != 0) {
& k5 f- \, Y: J/ e9 e - printf("Device %s write error.\n", E2PROM_DEVICE);
: z8 T l0 d' e* S9 [0 w" m - return -1;
/ s" K. ^; ?/ G* L2 j+ F - }
2 M( C. @. C5 u. o - 0 }7 ]1 j/ _) q% X2 {
- return 0;! [+ e' V# q; v5 C* Y2 p; r ~
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, b: K* D! K9 B4 K) j2 `1 z4 w0 X- int main() A) D; r0 o# w" l# t% h
- {
. K. U+ J+ G) M: R2 \7 K - char c;3 S9 p# r& w- z. L
- int i, macs[6];
8 ^) Z+ Y$ m8 c0 Q/ I; m7 B/ e - unsigned char mac[6];
, R3 \4 j* b5 p. J+ g - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
7 |! w8 ^2 p, q4 F - return 1;
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$ S. v9 E# o6 Z2 Y- printf("Current parameters: \n");5 H' \1 }$ o4 g' O6 j
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);. L3 ^' a4 H. {& P" c# g% I0 z
- printf(" STBID: %s\n", stbid);
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/ V3 Q8 r' K0 h* Z - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
) D, V( z2 r/ J$ J# X% x* w - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {- o) x) D6 {& `* d* t
- printf("Input MAC error\n");
' u& }, @* o: j0 ]; w - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];( {) ]7 B: ^ f% P2 e" ~
- printf("\nPlease input new STBID: ");
6 |& ~& X. _$ h9 N. R9 Q - scanf("%s", stbid);: j3 Q6 o7 i$ f
- if (strlen(stbid) != 18) {. ^7 q+ B+ z# o1 |2 r6 p
- printf("Invalid stbid\n");% w; V( X0 C% U# A# X" ^4 E3 B
- return 1;
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- printf("\nNew parameters: \n");9 ?. ?8 \6 D8 l2 j
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);# U/ y3 F6 B! i5 t
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");7 L* v0 w' Q5 o3 }
- for (;;) {2 E8 x/ {6 U! l6 f0 s
- c = getchar();
7 R% a0 J$ L7 [* C6 w: J - if (c == 'y' || c == 'Y')* ~9 M# h+ Y ]* S b2 \0 B' w) X* i
- break;
2 M, ~+ V1 K+ ?* z9 U - if (c == 'n' || c == 'N') {
# _8 V: b ]+ m# T3 l - printf("\nAborted.\n");
( V7 Q$ o5 o3 l3 Z! m2 n - return 1;
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- }0 Z9 ?$ Q+ y. S+ f5 }: M
- if (writeparam(mac, stbid) == 0)
2 X1 T) _. w3 M - printf("Parameters changed.\n");
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- return 0;) Y1 l) [" e1 K8 e" ^0 _
- }
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