本帖最后由 0522 于 2012-3-21 23:04 编辑
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; @( U3 \& }$ ]7 T9 n修改的代码早有了。到今天不会编译。
: n* X' f, I% D, H' \2 i! O需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>: ?. z% n7 R1 `! p
- #include <malloc.h>
2 z' u# _1 w$ D# C- `8 R" v - #include <sys/types.h>
( |0 m) R. k% m5 G2 @$ } - #include <sys/stat.h> ]& N- v+ Z. l* Q% n1 [5 C" T2 ?
- #include <sys/ioctl.h>5 O- C: x e/ H) _$ j* |
- #include <stdio.h>4 A5 f# `: y8 I5 d
- #include <string.h>0 a! R0 y5 a: q. c( C: s& ] R
- 0 q, K9 w% }! c! A' U+ Q0 b
- typedef struct {8 U' H; ~" C' W4 n
- unsigned int e2prom_cmd_sub_addr;
: q7 @0 e% ~' }9 Q7 V* ~ - unsigned int sub_addr_count;. d4 _& ~; B6 R A5 ]
- unsigned char* e2prom_cmd_data;
) p5 F( I0 _) n$ P# |" N' ~ - unsigned int data_count;
! F& C* j2 M u/ u" A9 z' Q% | - } e2prom_s_cmd;8 }$ X2 Q# W& i- q" K
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- #define E2PROM_CMD_READ 1
) {/ N+ h2 X0 B# Q; R. i" M - #define E2PROM_CMD_WRITE 2
; M; i: c9 h3 b" o - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)* v9 F2 Y* ] W5 d3 w
- {
5 C5 w! O7 A3 Z1 E& j/ I' H - int fd, ret;6 U8 p- E. W! t9 O6 y
- e2prom_s_cmd arg;3 A2 d! W, X1 {: X0 P0 h7 J
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
: Z9 v+ \8 b/ v+ | - if (fd < 0) {* y$ X R+ C# M- H# A$ q
- printf("Device %s open error.\n", E2PROM_DEVICE);6 b) Z! @ U3 V% A
- return -1;
! }. d/ S: S1 J( \ - }
4 K4 J! [4 {+ c9 x, C - arg.sub_addr_count = 2;
. o/ s; Y/ G; K6 V6 k4 l - arg.data_count = 0x18;
5 A0 A% P7 G" z1 M - arg.e2prom_cmd_sub_addr = 0x290;
3 q) `% B* @+ R" v; m2 T - arg.e2prom_cmd_data = buf;
, C% X: m. Z& J c" c4 ?+ P - ret = ioctl(fd, E2PROM_CMD_READ, &arg);1 I# i9 }1 X+ ~2 y: U
- if (ret != 0) {
a7 ~+ `( a; S - printf("Device %s read error.\n", E2PROM_DEVICE);3 [# x; D! @8 ^% g
- return -1;
/ }4 T0 `/ k/ i - }
1 q( c! ]( I' m. R) |" w8 S$ h" k - memcpy(mac, buf, 6);
6 [* y1 w n9 ]; ^, a - memcpy(stbid, &buf[6], 18);5 ?' B) m4 ]# }
- stbid[18] = '\0';
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- return 0;6 r9 v c& ~8 p1 ]6 x/ W' }$ \/ {
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)4 t. S* o$ E" \/ g* C( ^
- {
: F2 t7 I+ e0 L A - int fd, ret;% b! ^ z' ~( w( Y0 J& m
- e2prom_s_cmd arg;2 H# U* \" \, p& _# w- G; L
- unsigned char buf[0x18];# e B4 {1 H7 e9 S, j
7 y% x9 ~1 \, W& {- memcpy(buf, mac, 6);1 V/ N& |0 A# f2 s R+ V
- memcpy(&buf[6], stbid, 18);& D" V" j. q- ?+ c! C; t: e6 x# T
- fd = open(E2PROM_DEVICE, O_RDWR);
% G/ I- ~2 Y1 T' F% u - if (fd < 0) {
+ B, s; z) V: L: m" P2 `/ w - printf("Device %s open error.\n", E2PROM_DEVICE);1 F1 B0 G* p. J; A2 g
- return -1;
4 T! R4 i7 ]& k3 A) E9 q - }
9 O5 ]& [$ \: k6 S! \) w8 ^ - arg.sub_addr_count = 2;9 j$ G! z/ J& F/ ]$ p- _
- arg.data_count = 0x18;
+ H* I: ?" a% r1 z - arg.e2prom_cmd_sub_addr = 0x290;
) a! ?$ k4 \# E4 }$ B" X - arg.e2prom_cmd_data = buf;
, M( u# K* A: g8 M3 _5 t - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);' y9 @) |4 ~9 |0 t
- if (ret != 0) {( v, M: R1 F) C
- printf("Device %s write error.\n", E2PROM_DEVICE);
0 K4 U0 v+ u& i9 i - return -1;' V: f7 k `- R: p, L
- }
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5 i' J m/ {3 {4 P4 `- return 0;
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- int main()
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- char c;( o g& v$ _# a ]; G- p1 ]
- int i, macs[6];
+ A2 J w% k% B9 _/ { - unsigned char mac[6];; e; u3 _8 P1 ~# K8 `# w
- unsigned char stbid[256];, M: K0 [; W2 w+ @2 O' N4 B
- 2 `* l0 K- m3 m
- if (readparam(mac, stbid) < 0)/ \; @; i3 ^5 j8 c+ u
- return 1;) B3 ?5 C) Y" S% {( ?
- " G* H9 p9 ]' L1 H0 e8 l6 Z* v
- printf("Current parameters: \n");( T9 G' C0 Y/ a! m! B8 g
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
; ] K4 N! u1 p. C& V6 N - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
' V; A+ w- Q" y% L2 _4 f. @ - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
2 {2 _6 k5 E; n; X9 E' H - printf("Input MAC error\n");5 W K- ^) m7 U& c1 _, e, T
- return 1;. c' @2 l! g$ h6 t/ |; U$ V
- }
# Q2 V) P. j: k3 f( \" m1 i3 e - for (i=0; i<6; i++)mac[i] = macs[i];6 ]6 r7 n7 V4 V$ K# `2 i
- printf("\nPlease input new STBID: ");
2 n3 i: t3 k* m - scanf("%s", stbid);
7 a- I* ?0 y$ f/ O2 _ - if (strlen(stbid) != 18) {2 B1 j5 ~( O7 o, k( t
- printf("Invalid stbid\n");
# l$ h; _* e- ^. g% e1 o - return 1;) S6 N; i8 @8 N3 V3 I
- }+ U# ^. d! Q7 i$ c
- printf("\nNew parameters: \n");6 z& L) T M }4 _- ]* @
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
# W6 O# a3 v1 z7 [3 d* b+ q' e - printf(" STBID: %s\n", stbid);( T6 _3 H# G0 ]' `% A W) H0 r
) Y2 [# c: ~0 @! ?- Q- printf("\nDo you want to change paramemters? (y/N) ");2 _3 i4 m1 s: r1 D, i; z1 r
- for (;;) {
1 T) A5 q b& b4 E - c = getchar();
# r9 T& A7 y( y; a% o - if (c == 'y' || c == 'Y')
: X' ?$ S; L4 q2 F; b. a - break;
% m; i. @, d+ Q1 H. F3 d6 \" ~ - if (c == 'n' || c == 'N') {0 n. Q# I. M& e" A2 S" D9 f
- printf("\nAborted.\n");
: W8 P* Y! h% `$ Y+ q0 b - return 1;
+ x: a+ Z- ~0 [% i! |) [( R - }
: ^1 v, ~' N% U - }
4 a, z, b7 I6 p) ? - if (writeparam(mac, stbid) == 0) . G( t1 ]' ^5 Y3 Y% n T+ Z
- printf("Parameters changed.\n");
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- return 0;0 Z: U& r$ j+ Z; W# A
- }
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