本帖最后由 0522 于 2012-3-21 23:04 编辑
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6 I* J0 O& | v修改的代码早有了。到今天不会编译。/ }: o% _5 b6 `( p8 P6 X
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
8 V e+ u/ z: z5 X! p - #include <malloc.h>( }5 v, R6 r8 H+ {! h4 @- u3 Z' I0 L5 a) H
- #include <sys/types.h>( R9 P8 s! h# b
- #include <sys/stat.h>
6 h I: S5 {$ q, b - #include <sys/ioctl.h>
& r t, q. c1 Q* q. v - #include <stdio.h>
, f7 C8 G. c9 c5 }, [ - #include <string.h>
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/ s, h0 ]5 J2 d- {& d5 M" y- typedef struct {
M( p' j9 Y. |: E0 v - unsigned int e2prom_cmd_sub_addr;
2 [6 B8 n5 V f4 p$ F0 { - unsigned int sub_addr_count;
8 @ k* c: h/ c/ ?& \2 Y - unsigned char* e2prom_cmd_data;
) [* w: D2 Q) z6 y' o - unsigned int data_count;" ?( U+ b2 y: ^$ T) o- d
- } e2prom_s_cmd;2 e7 g( I }0 v4 }3 r$ v
- 3 Y. d# M- E5 r9 f. b( A
- #define E2PROM_CMD_READ 1
) T+ c9 w& V7 W9 U: I7 q X - #define E2PROM_CMD_WRITE 2& ?$ E1 H% T( D6 l( }2 c5 q8 l/ u
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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9 b+ a0 F2 _6 W, S0 o- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
: u v* ~5 D; F$ c - e2prom_s_cmd arg;
# V9 L& d! q% p" p" ~6 b - unsigned char buf[0x18];( c' f1 Y0 I: |, y
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- fd = open(E2PROM_DEVICE, O_RDWR);
# B. I$ K" Q i5 p$ S/ K - if (fd < 0) {. T" Y* F/ Z6 O% o: d P
- printf("Device %s open error.\n", E2PROM_DEVICE);
8 _; P- r5 @- @/ Q - return -1;
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- arg.sub_addr_count = 2;7 ~7 {" t8 o; @. m9 I
- arg.data_count = 0x18;
$ a* F+ j3 x9 |" @* b - arg.e2prom_cmd_sub_addr = 0x290;. \& m5 \) ?- J- y1 X% j
- arg.e2prom_cmd_data = buf;4 H5 g3 C9 D! a; |4 ]9 ]( m
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);' c4 L; s9 {+ k, V% {0 p
- if (ret != 0) {
' d+ s" z N2 l: J' Z- c0 C - printf("Device %s read error.\n", E2PROM_DEVICE);
8 q8 }, T7 y+ X& P; `% E - return -1;
% Z4 i/ E. z/ Q3 b E - }
+ n" ]5 K5 I/ l5 P5 o( E0 y - memcpy(mac, buf, 6);
4 C: G: [' r1 s( Y - memcpy(stbid, &buf[6], 18);* j0 V4 {0 M8 l: I9 Q6 j
- stbid[18] = '\0';6 V* K+ W- {0 X6 d. Q( `! ]+ Z
3 ]) {; j" A& Y+ L( a8 J- return 0;' S2 ?# N4 m* T; }& R) s( L
- }
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/ {1 C: ]2 @) p! R$ H) K l! b- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
5 W: r3 C# x1 }% t$ s - e2prom_s_cmd arg;
: v6 d2 `1 G. |& O6 r) {+ d. } - unsigned char buf[0x18];0 }0 s1 o0 D- c% K- v6 F0 S: P, f
3 I2 L% t0 i6 b |3 D; A, H- memcpy(buf, mac, 6);8 K& E' K+ y. P1 `
- memcpy(&buf[6], stbid, 18);" o4 c/ J$ |4 p7 E: d' ]$ _
- fd = open(E2PROM_DEVICE, O_RDWR);1 ]" i v* Y ^& e9 y/ \- u
- if (fd < 0) {
+ Y2 F7 I6 R6 [+ e, P! u! w0 n5 N3 | - printf("Device %s open error.\n", E2PROM_DEVICE);
' v8 Z/ r O: t$ A E, } - return -1;3 a! P; B M) V& [
- }
& I3 m! t! w$ t5 A! t1 e8 {3 i - arg.sub_addr_count = 2;7 K( {& F; ^+ ~; {. b+ S
- arg.data_count = 0x18;, F, b/ I! F& l4 Z7 f6 L
- arg.e2prom_cmd_sub_addr = 0x290;. T- Y9 u4 r$ T" z& n$ {% B
- arg.e2prom_cmd_data = buf;( W+ e* C9 B8 G9 Z8 W/ I; {, L
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
/ ?+ z% D1 n: T7 L - if (ret != 0) {
! o; f5 n: J3 F - printf("Device %s write error.\n", E2PROM_DEVICE);
" Q; F* | \; }. t - return -1;1 `4 h) [5 W; L( x( \3 \
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% C( |# \: F6 n! B+ V; K- return 0;
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- int main()
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- char c;
0 Z1 k' _ l5 o: n - int i, macs[6];! L) \2 y: }5 |8 ]
- unsigned char mac[6];+ H) d; \7 i4 G; l( g9 H
- unsigned char stbid[256];/ O, _% _( y+ @8 N/ e5 t
|% q$ _) c( L5 R- if (readparam(mac, stbid) < 0)4 s% e- S: t: B& @7 B/ {: x1 j
- return 1;
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- printf("Current parameters: \n");$ G; I; h w/ X0 D! j+ f( H
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);# h& W; P) a7 O3 l
- printf(" STBID: %s\n", stbid);5 M: T( @5 f2 {- \/ J8 B
- " u+ V# Q# y" A. y! s1 D( ^; A; g/ q
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");8 h+ h( f5 |0 S+ B& D
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
# X( h2 s: _& c ] - printf("Input MAC error\n");
/ }/ Z X6 @9 V+ b; p4 } - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];
* ]/ n) L; q/ D0 q& }! A; Y - printf("\nPlease input new STBID: ");7 O$ g- R; m5 X; B
- scanf("%s", stbid); D( ?" ^; u$ m" ] j
- if (strlen(stbid) != 18) {: D1 h$ f, W9 F
- printf("Invalid stbid\n");8 P$ I2 y* ]) W Y
- return 1;
% X8 U- U* n$ q M5 i - }
# V8 H$ [( y- c( Z - printf("\nNew parameters: \n");) M0 L3 @/ i% k! Y5 w
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);& Q* D+ w* y4 S$ ~6 X' x% F
- printf(" STBID: %s\n", stbid);
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- s: ] u, K2 V4 U0 Q- printf("\nDo you want to change paramemters? (y/N) ");
! G& O/ B ^; s) P) u* @/ b# O - for (;;) {) U) e0 O$ }9 J$ L* X; o6 Y0 X' I; t
- c = getchar();% c+ n) w, K. y% v" `0 f
- if (c == 'y' || c == 'Y')
% e$ s0 w! a% d+ D' B - break;! i. Z) m: y" H7 i/ r
- if (c == 'n' || c == 'N') {1 N% H! R& p3 A* M
- printf("\nAborted.\n");+ R0 n8 `2 v) n( S' R
- return 1;
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- if (writeparam(mac, stbid) == 0)
2 Z; O0 \, K4 h - printf("Parameters changed.\n");
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- return 0;5 q# j8 O# C/ m9 b) g. _* Q
- }
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