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。2 u$ [: P# d4 m+ ~( d1 @
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
) z4 A# ]7 f4 d! h) ~# v - #include <malloc.h>1 ^# l# z; Q! Z4 _6 o( E: L
- #include <sys/types.h>
+ N3 G! ~& o# d% h5 q! D! O - #include <sys/stat.h>1 W( p6 S! |" t
- #include <sys/ioctl.h>9 A3 j i/ b R4 U
- #include <stdio.h>( {& S9 z7 A. R
- #include <string.h>
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?2 z7 k& }0 X! \+ P- typedef struct {& f$ ` ^1 W2 E2 U( N8 C8 Y
- unsigned int e2prom_cmd_sub_addr;
9 P# @, E3 V8 H( @. u - unsigned int sub_addr_count;
8 p) F5 ~9 `7 _1 l q) M, \ - unsigned char* e2prom_cmd_data;1 H6 M H3 |( Z+ ^
- unsigned int data_count;7 k) }5 H( X0 O; f7 k$ N0 i9 A
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
) _/ ^. J/ N# k2 B - #define E2PROM_CMD_WRITE 20 d- o' }# M8 m, b' V2 c k
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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' c* \1 ?* z2 l' k5 } b: J- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;0 o) F" g5 Y3 U5 X' w. F
- e2prom_s_cmd arg;
, O3 u8 u7 q- S# E7 g B! j" u% t - unsigned char buf[0x18];/ t2 x4 X) d" [6 l% ?0 L; V
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- fd = open(E2PROM_DEVICE, O_RDWR);& }6 D8 [- F/ l' L5 c, v
- if (fd < 0) {
+ X( w. J2 [) x/ s2 {7 P: m& Y - printf("Device %s open error.\n", E2PROM_DEVICE);
% h+ g# B. |0 {6 B - return -1;
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- arg.sub_addr_count = 2;" {1 l5 h+ r( c1 N# v. r
- arg.data_count = 0x18;' k" c5 u: ~: k- U5 w* J
- arg.e2prom_cmd_sub_addr = 0x290;
! ^# _- {, i5 X - arg.e2prom_cmd_data = buf;: {, I- c0 ]: n8 d# D- L1 `
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
9 D* l, O6 H3 D6 ]! o7 N - if (ret != 0) {
* M/ `' F7 A6 @9 f - printf("Device %s read error.\n", E2PROM_DEVICE);
9 T# D- K- X* d7 f- z. n - return -1;: G4 y6 N6 j( B+ k
- }
5 y5 T+ W$ H& m3 y; J' A - memcpy(mac, buf, 6);1 u7 z3 N$ F5 b2 p L i# Q
- memcpy(stbid, &buf[6], 18);
6 ?, P) ^# D& e; e h1 u - stbid[18] = '\0';
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- return 0;. r2 w: @6 F% f5 C& N* g' _
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid): K) t- f. y3 m( Z+ j9 ]3 o
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- int fd, ret;
5 U& P/ x; U7 Y6 I - e2prom_s_cmd arg;
) f$ K- @: B# M( V* }2 ` - unsigned char buf[0x18];6 P6 S6 f: T: s
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- memcpy(buf, mac, 6); o4 O' h- w' K5 O
- memcpy(&buf[6], stbid, 18);
. z( p5 G1 H1 p y8 h& i8 l( Y - fd = open(E2PROM_DEVICE, O_RDWR);
; F; F) \; p: |9 c - if (fd < 0) {8 {& m _5 j0 D/ a$ t
- printf("Device %s open error.\n", E2PROM_DEVICE);: j+ L& c: c% S
- return -1;) k. ]0 Y/ T# ^8 J; i
- }
0 r, N. Y4 b3 n2 s( u- ?5 I1 Q - arg.sub_addr_count = 2;( k5 O% v4 M" S8 U7 C) X+ g
- arg.data_count = 0x18;8 n6 ^% O( [" R" ]4 g& [+ _: x
- arg.e2prom_cmd_sub_addr = 0x290;
: U$ J. C: \6 N* K4 _; ` - arg.e2prom_cmd_data = buf;
! R/ u1 P& t8 v x; ^2 } - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);) I5 Y+ v8 Y; `$ R
- if (ret != 0) {
$ n6 O( q1 \1 o - printf("Device %s write error.\n", E2PROM_DEVICE);4 t' L1 A6 Y" ~3 W i1 z. T/ T
- return -1;3 B- U4 x9 q8 q% V
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/ j7 e- i5 _. y- return 0;
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- int main()
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- char c;0 `4 [6 q' c& F
- int i, macs[6];
) Y+ ]% J$ t2 z: W$ {* j - unsigned char mac[6];% h1 @! W/ ~6 u# v2 H' O+ e
- unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)- h0 S" U$ D/ k: K, }( m
- return 1;
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, C X. _* }" ^- printf("Current parameters: \n");
- P8 O; D( B7 U6 S - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
9 `8 ~4 Q# ]# Z* }- ~ - printf(" STBID: %s\n", stbid);: p0 f1 Q4 J' V% m( U2 \+ j; p
-
+ K ^; N) l- \) K - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");+ b& D) v, w; q9 z" o% R# a
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {/ t0 s- ~2 I/ @- R+ z+ ~8 K
- printf("Input MAC error\n");
3 x K6 b. f$ [5 ` - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];
; @) x$ f' O+ z! Q& l$ F - printf("\nPlease input new STBID: ");) M; Q+ i/ g. T
- scanf("%s", stbid);5 S( M% `+ L2 T. }0 t+ W0 [
- if (strlen(stbid) != 18) {
% e+ C$ a& B/ m. J - printf("Invalid stbid\n");
& _3 S# ^( m# L2 r7 D0 \4 k C - return 1;. |) T3 V4 f' o, P6 |. }
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- printf("\nNew parameters: \n");4 C+ V% L" z% q6 x: y* w. v' U
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); L3 I) F9 @/ Y
- printf(" STBID: %s\n", stbid);: J" A" n! |0 ]' {7 A# @! \8 o
9 d8 f- B; P7 H- printf("\nDo you want to change paramemters? (y/N) ");
/ B3 [& `) ]: J7 L% D% f# z - for (;;) {- U* A! F9 ~8 U, Z- _
- c = getchar();
; R" U' b- ]3 n1 p1 H- l - if (c == 'y' || c == 'Y'), Z$ i* x# ]! ^; X' ?' g4 Q' K& Y# S
- break;
, L# }" ^# ~; n3 k9 U - if (c == 'n' || c == 'N') {- C. x+ x/ Y- w9 O2 j2 ^
- printf("\nAborted.\n");2 |( w% q/ ?1 F/ @
- return 1;) u; J$ B2 B# P% Q
- }
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8 n$ B. l6 @: x/ s1 k! g - if (writeparam(mac, stbid) == 0) 1 L3 U8 ?+ d1 l6 x1 l! q" [2 e# k
- printf("Parameters changed.\n");4 n5 v8 l& [6 P4 }9 a
# ]! t! Z2 p+ t! A' ?- |+ h4 k, L$ z- return 0;
& M+ F9 n$ h8 D - }
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