本帖最后由 0522 于 2012-3-21 23:04 编辑
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* s- u6 k0 {! b. E2 z! u修改的代码早有了。到今天不会编译。
4 w- J" h% y' M0 I0 |1 T1 L' L需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
, y7 M! ~) J; I" j - #include <malloc.h>
7 q; g W( e. l8 c. x - #include <sys/types.h>
& M0 D) j. ~( J$ G" ]. K( @( ?* o - #include <sys/stat.h>
: R' M% q, J3 h6 C7 A8 X' A. U% W - #include <sys/ioctl.h>$ r5 H4 j- |' U8 Q
- #include <stdio.h>6 J" i3 h0 @4 y" S) M" J
- #include <string.h>
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d* @+ I' p! e" Y* M- typedef struct {
6 Y4 D; d, Z- f" A, q2 s- T( |/ ~ - unsigned int e2prom_cmd_sub_addr;
* z) h# x2 T1 [ - unsigned int sub_addr_count;! J2 p8 Z* W; k% t8 l6 C4 I5 Z; L
- unsigned char* e2prom_cmd_data;" d* w' w2 G0 Y. e, C( v9 S. v0 }& @# Z
- unsigned int data_count;2 B4 L+ W, Z: H
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
$ l; R0 K4 a/ q& b* H - #define E2PROM_CMD_WRITE 2
3 y/ C6 z- ? X6 m5 D8 u! E; ^/ t( D$ ~ - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
: I6 s% C9 u! R6 e- U# }
9 q" }2 y" ` ]: a5 J8 ~3 ^, |6 F9 I- static int readparam(unsigned char *mac, unsigned char *stbid)
/ m7 v# g$ t) U, S; ~ v7 T - {
- t" S4 x3 J# Z0 \/ e - int fd, ret; L0 H* D8 k5 v- S& d ~7 a; H
- e2prom_s_cmd arg;
+ F, o6 @( R+ p) @5 D4 l' c1 h3 w - unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);4 X: W8 _ {- A5 N, T% B% q6 p
- if (fd < 0) {
7 V6 b# g- R3 |' J - printf("Device %s open error.\n", E2PROM_DEVICE);
5 u8 _" B; n7 Q# \2 N0 c. [& b - return -1;
5 ^5 s# X$ d5 c& Z/ z - }
" L" m7 ?1 M& z - arg.sub_addr_count = 2;
8 T! f% w, ~7 n+ v7 B1 ?# m8 W - arg.data_count = 0x18;
3 ~0 p3 ? o" h7 p& O - arg.e2prom_cmd_sub_addr = 0x290;
4 B' L. [0 h0 U1 Z1 ~( f" C - arg.e2prom_cmd_data = buf;
/ a, S/ v; ^ u5 H - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
( H9 @. O$ d) e D - if (ret != 0) {
, c3 [/ e8 W7 S+ ~/ a - printf("Device %s read error.\n", E2PROM_DEVICE);
: V# a9 b; Z0 j) w& u8 J - return -1;, l+ e6 E. K! R: u0 W: T
- }" F7 V- ]7 m* `* ~
- memcpy(mac, buf, 6);* j4 N1 ]: ^# u) ~/ S
- memcpy(stbid, &buf[6], 18);
( F: w1 E5 I) i - stbid[18] = '\0';1 G2 w1 @0 B! a# j. x2 d6 g3 u
, `& t" ]% @- b, h. r# a/ d' t- return 0;8 [2 P1 O/ V% M: }4 O! m l! H
- }
# E5 t- O3 @( S; ]* Q0 I: b0 m* e - 6 o9 Y7 J: Y- i# ~% w" D
- static int writeparam(unsigned char *mac, unsigned char *stbid)# v5 p) K1 c; b+ |
- {
* z. F5 J# d9 |8 E0 K - int fd, ret;. c+ G+ @! U6 `) I) N+ U) B7 _3 w
- e2prom_s_cmd arg;( u( k5 X+ x5 p8 j; a4 \" }
- unsigned char buf[0x18];7 }" P. O% K: H
- 2 }" B7 C5 q, }/ s
- memcpy(buf, mac, 6);" i6 S6 {: K' k {) Y. L0 d1 z
- memcpy(&buf[6], stbid, 18);
- g& v4 p8 X) X# F' Q! K - fd = open(E2PROM_DEVICE, O_RDWR);
# i0 [" t5 G e, \. G - if (fd < 0) {
9 l* M2 \6 U1 D& T! b - printf("Device %s open error.\n", E2PROM_DEVICE);
7 x5 j0 u& e5 ] - return -1;4 Y( K7 [3 f8 S8 v' [) N4 ^
- }. ^) y% m3 @8 U
- arg.sub_addr_count = 2;
& N" ?1 m/ U0 @' p! A9 T( L2 b% [4 k - arg.data_count = 0x18;
r2 Q- t8 s- R5 ?/ Z# h; p - arg.e2prom_cmd_sub_addr = 0x290;: V2 y% ]5 d3 L3 k
- arg.e2prom_cmd_data = buf;6 g+ Y6 [& }/ F3 X. t8 f
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
" |: K/ U' y% ^! m) }. u5 } - if (ret != 0) {5 `" F" R; P: s+ |- q* n8 S5 a
- printf("Device %s write error.\n", E2PROM_DEVICE);
: C$ m, ], } N3 o - return -1;" }/ r$ Q- N4 e6 ]7 C3 A
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- 6 e6 z) {; s3 q6 g' i
- return 0;
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- int main()
n7 R& S4 N; v - {, a! F2 k; }3 F# J* V& D
- char c;
/ E) F5 v5 R% \( [3 ` - int i, macs[6];1 Q Y7 j! j4 Q$ Y: ^6 s
- unsigned char mac[6];
4 n a$ c4 }% @, i5 f5 k - unsigned char stbid[256];# }8 O4 j! f0 q; R
- / f, y* W2 G% B* D8 F
- if (readparam(mac, stbid) < 0)
) b) E( d% w; e( I/ Y* Y% v - return 1;
, s" T A5 I$ \! z/ t& v - ; y% F" H! n, Y% }
- printf("Current parameters: \n");5 w% A# U) j2 z) V$ o
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
; E* M3 }# G6 s2 D - printf(" STBID: %s\n", stbid);& n) L( L5 U$ K) a
- 4 A x: {; F' H; y# y* h" x
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
7 k M* e+ `& G, H) g s# Y - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {+ Y! O$ N/ x# T6 u9 m
- printf("Input MAC error\n");
f: B; g% t: A, e - return 1;! m( d9 t$ y( D: u Y
- }* ^: ]& T2 O( o, y- a
- for (i=0; i<6; i++)mac[i] = macs[i];8 u; ]! g W8 B( h1 h) O7 v
- printf("\nPlease input new STBID: ");& U7 c! [ M* `9 f- U5 f
- scanf("%s", stbid);
+ e# a. ^7 x$ v3 w+ u - if (strlen(stbid) != 18) {" A; t& M( c5 o2 r, B
- printf("Invalid stbid\n");
( l% x4 [- e7 w9 |6 T3 _ - return 1;% S. w5 S7 u0 R% Z- h- t H
- }
( N; n7 q- d6 w5 X - printf("\nNew parameters: \n");9 p. B7 W9 l$ |4 T" Y# U, Y
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);6 ]2 L* b( G9 L# r1 [& u; y0 _) N
- printf(" STBID: %s\n", stbid);
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7 e: Q/ a% l8 u$ y- printf("\nDo you want to change paramemters? (y/N) ");
- o6 _7 ?8 B$ S, N - for (;;) {: L* C- N3 q* L: N+ Z
- c = getchar();
* A g4 ]+ i3 b - if (c == 'y' || c == 'Y')0 Q6 T3 i! h: \( i4 l
- break;
7 y8 i* B, }1 ^4 `# T9 i9 a - if (c == 'n' || c == 'N') {1 ?+ B0 L9 x; S: @, N8 U
- printf("\nAborted.\n");
4 _2 y8 ~9 P: p" [- R" t9 S% M1 { - return 1;0 |4 i6 |- n- ]& t* p6 S/ T
- }
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- if (writeparam(mac, stbid) == 0)
5 p# {8 ]3 F' H$ ]! P$ i - printf("Parameters changed.\n");7 a7 {& @- p; b6 u6 h0 G
" c! Y, p" X3 K" m# G- return 0;
- _. e) l% o* D. Q+ H5 | - }
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