本帖最后由 0522 于 2012-3-21 23:04 编辑
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修改的代码早有了。到今天不会编译。
+ {, i! R4 J" G9 D/ }* q$ l需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>; E- {- a. Z- R1 \. G$ s
- #include <malloc.h>/ Y8 C4 r9 X+ y' k% `, d
- #include <sys/types.h>' y% l0 \' C4 V8 g7 m- y5 Z
- #include <sys/stat.h>) d3 O; i5 h% a# v: E2 B0 r
- #include <sys/ioctl.h>5 ?' i0 x: I x5 Q
- #include <stdio.h>
& V" ^) ?; C, Z - #include <string.h>
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4 Z% q& \) H: H- typedef struct {
6 H- ^. K" D3 D3 A* F% k - unsigned int e2prom_cmd_sub_addr;; Y) n. \; h( K7 Z5 B
- unsigned int sub_addr_count;0 @8 |" Z/ Z0 k4 q/ m" ]8 V
- unsigned char* e2prom_cmd_data;
# C8 A6 X4 b; X' n# ?0 H - unsigned int data_count;
7 M0 n1 S3 p3 ^$ g9 V& D - } e2prom_s_cmd;: g" H1 S; x8 b
- # E- ~5 O9 Y9 T- V, \
- #define E2PROM_CMD_READ 17 \/ K8 B5 f' z) {* z( s! H: }
- #define E2PROM_CMD_WRITE 29 ~0 v2 a9 i) ?0 `+ G. v; t' q
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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% d- b5 S) v) t+ q! e- static int readparam(unsigned char *mac, unsigned char *stbid)/ B+ `; L; M4 a) v
- {# k+ ?4 U* i. l- }( T# k5 h
- int fd, ret;% u s/ h" O9 s
- e2prom_s_cmd arg;& V9 `% N& [/ r6 p* p1 _4 E+ r2 O
- unsigned char buf[0x18];
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$ t4 ~. t3 O8 n0 j$ V- fd = open(E2PROM_DEVICE, O_RDWR);
4 r- L2 E3 y: b U - if (fd < 0) {
x$ N3 h& }5 [' B% d - printf("Device %s open error.\n", E2PROM_DEVICE); T* L2 U1 _3 i$ s X1 o
- return -1;# M! M/ w4 J1 e* Y' q; t& s/ k
- }* S6 N2 l& }- e" y: r& ^
- arg.sub_addr_count = 2;. `+ ^4 R4 ^0 E' |8 ~
- arg.data_count = 0x18;
8 V2 A4 u6 i2 C$ b# b - arg.e2prom_cmd_sub_addr = 0x290;
$ }, A( e% h3 X) F* l - arg.e2prom_cmd_data = buf;9 h$ S. R1 ^( o9 s) G8 G5 N
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);7 H* Q8 N, F. R4 ?' k! _& D
- if (ret != 0) {+ j$ |/ a" E. \* h
- printf("Device %s read error.\n", E2PROM_DEVICE);( y9 w$ C. t6 M ?
- return -1;
7 B9 b+ C8 } q8 A; [& t h - }
0 f+ R! J7 P O) H0 u - memcpy(mac, buf, 6);
9 o0 n0 G5 ~3 k+ o7 D% N- l$ J - memcpy(stbid, &buf[6], 18);
7 X$ R8 G* W: I6 ~1 L- Q - stbid[18] = '\0';
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- return 0;
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
- M) W3 f& R& X2 `6 s) Y8 N5 y3 D( ? - {
5 ?$ [- C4 p6 C, G7 j - int fd, ret;
3 z7 Y! H3 _- ~ - e2prom_s_cmd arg;' X6 J4 n) V" w# E; A8 D ?& ^& S
- unsigned char buf[0x18];
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- T% b. H$ V0 E7 t3 Y+ L- memcpy(buf, mac, 6);
! W+ ^$ e* g5 Y+ j0 R7 ^4 @ - memcpy(&buf[6], stbid, 18);
3 E b8 C5 A6 U e; c - fd = open(E2PROM_DEVICE, O_RDWR); |$ I& Q* s( A2 m/ h8 k ?
- if (fd < 0) {
3 u. [( M$ e2 W. P% i5 N - printf("Device %s open error.\n", E2PROM_DEVICE);
0 Q& S P1 t3 Z% r! C - return -1;
4 y4 t8 \8 M. b9 V9 E% r$ ^8 G - }
6 X$ X- P! I: n/ c* v/ }/ m* d - arg.sub_addr_count = 2;
; K7 G3 x$ Q2 C0 d - arg.data_count = 0x18;
) d% Y+ u* {7 { - arg.e2prom_cmd_sub_addr = 0x290;: t3 J- T' [- w$ t1 m; U
- arg.e2prom_cmd_data = buf;
' ~4 G1 l& S( @( f( F - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
/ o' D: T F3 R5 l - if (ret != 0) {, t+ X) }0 Y% k- T" ]" n
- printf("Device %s write error.\n", E2PROM_DEVICE);/ s4 Z, Y' b1 |5 w
- return -1;
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- J: M1 s7 M" F3 z2 t. Y! ?9 J- return 0;8 L7 V* o: F( N- F6 l5 k
- }
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) s5 _2 W4 ?5 `- int main()
5 h: L2 @! C G# I% r& ^. V+ b - {
+ | z: C4 t: I0 T H - char c;- _0 y& K" J" w0 M+ v$ L
- int i, macs[6];# q7 a0 \, G* g( n4 o
- unsigned char mac[6];
# S/ Y3 ~. Q2 U1 E) H+ l - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)& W* e5 f7 I* B
- return 1;2 G: ?# f! d. @8 d0 l! t
- ! d" ?# L [# G0 h5 p/ i
- printf("Current parameters: \n");. E6 V* c. G# v( ]
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);8 a* i6 J- [. n; X1 ~
- printf(" STBID: %s\n", stbid);
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8 H2 F5 @$ {5 u( o7 Y - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
6 F$ h$ x" T* P2 I5 [ - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) { ]- V3 D& a, f' b% l
- printf("Input MAC error\n"); y2 O9 I, N* Y9 N; b8 O6 o
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];3 e' @% m9 H: f# T/ d
- printf("\nPlease input new STBID: ");; w v% f( g7 P% W+ r/ P% v
- scanf("%s", stbid);
p5 O$ T$ i. x5 s( Y5 @2 e5 V% N - if (strlen(stbid) != 18) {
2 d7 x8 f$ m7 s) K4 r - printf("Invalid stbid\n");
& m5 h' M R' j - return 1;0 P, u8 G& d2 C8 h- E& i* }
- } t" \! M s( c# ]; d
- printf("\nNew parameters: \n");2 H, G; q" d& x8 k/ k% H8 |
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
8 X! P% D6 H2 E0 |' w% \. H - printf(" STBID: %s\n", stbid);% Q* \% w' q1 [$ I9 T- l
- 4 i) P5 b# e9 \
- printf("\nDo you want to change paramemters? (y/N) ");( {% C) g" A& Q3 s) Y: {7 ?* A- P
- for (;;) {
1 T' z4 o/ t( B - c = getchar();/ y8 P' J- \, U6 \- Y& K
- if (c == 'y' || c == 'Y')- U: H0 j; W) R$ J+ N/ S' V7 [+ \
- break;
N" h9 e$ X6 D/ j- J+ e - if (c == 'n' || c == 'N') {
+ P1 s! H, T/ ^% F" X2 H% N8 d - printf("\nAborted.\n");# m0 `/ z3 F4 a
- return 1;
/ g7 ]8 ]' o2 w, ? - }
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- if (writeparam(mac, stbid) == 0) ) S6 h# g! J* L6 C" y9 W
- printf("Parameters changed.\n");9 m/ \" j3 Y( E' F
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- return 0;
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