本帖最后由 0522 于 2012-3-21 23:04 编辑
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8 N5 R9 q" Z2 J" v修改的代码早有了。到今天不会编译。: \. n% q" [1 @
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>( K$ r6 o) p$ C3 i4 V$ e. g n2 k
- #include <malloc.h>
5 z% N z0 [5 F) \" }# x - #include <sys/types.h>
4 c/ A( U2 q6 h - #include <sys/stat.h>
# c7 p, R2 G, Y, W - #include <sys/ioctl.h># j- k. f+ H$ E6 Q
- #include <stdio.h>
4 t3 u( n# }8 _% |" k2 g - #include <string.h>
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- typedef struct {5 l7 E; ~# h0 U) _ j( q, p" p4 a
- unsigned int e2prom_cmd_sub_addr;; o7 ^3 i1 N% V; n" V4 J6 y5 }
- unsigned int sub_addr_count;
% J# j* A& m7 k. j. F7 j5 q - unsigned char* e2prom_cmd_data;* v7 x& n7 U6 b0 t
- unsigned int data_count;
' H1 ]" X: n% c - } e2prom_s_cmd;- O* c$ K3 Q3 e) f, n9 J/ k
$ ]! f$ M8 n% k5 Z; P8 q& _$ {# Z N- #define E2PROM_CMD_READ 1
, X5 T4 ]9 |+ `/ U5 V+ j d8 O- i5 r$ t - #define E2PROM_CMD_WRITE 2- a2 V3 o8 p/ J8 r. s( ~
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)+ ? G$ F* ]0 V; A3 Q3 w' O! `- R
- {, U) w* o, }- s! G3 M) ?; J
- int fd, ret;
0 ]3 C; f' @- |2 O/ ]: D% B - e2prom_s_cmd arg;: w, E4 W$ O1 b' h, ]( A
- unsigned char buf[0x18];+ c, X9 a; l% f2 J" j& B
3 J# h7 Q+ [4 V; X5 r9 e7 ~" [/ u" p- fd = open(E2PROM_DEVICE, O_RDWR);5 }* j4 F+ X/ l! y0 V l
- if (fd < 0) {
M6 x2 K+ n& Z* X5 u3 ^, ^6 m0 ` - printf("Device %s open error.\n", E2PROM_DEVICE);) a& F5 T8 l% ?& X
- return -1;
1 V) q1 P, ?2 u3 m - }
7 H8 J: \' i' B# l; B7 t - arg.sub_addr_count = 2;/ m3 ]) B: b- b$ {) |3 @
- arg.data_count = 0x18;* ?) S) k- n* u
- arg.e2prom_cmd_sub_addr = 0x290;
$ c1 h5 c+ m1 B' Z, N" ~ - arg.e2prom_cmd_data = buf;
+ A( a* v0 n7 I' D5 O8 J9 Y - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
* ]+ n9 ?) E; P3 \& ~; O; q - if (ret != 0) {) H$ y+ g2 ]& s- [% @9 j: [
- printf("Device %s read error.\n", E2PROM_DEVICE);% `6 @4 B1 I! p
- return -1;: `) S W& N% n4 f$ @+ G
- }
, ~2 h& ?0 G4 _7 D# } - memcpy(mac, buf, 6);2 |' Z$ N+ I4 S1 q" f- T9 l
- memcpy(stbid, &buf[6], 18);% b; A1 C o2 P: s. p& f
- stbid[18] = '\0';% N- V' Y- e, c$ n% }! Y# C
* W# C& \6 u3 ?5 u( B. t- return 0;
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- 6 C4 a$ e& ~) d' T* ~) E, F
- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
# {! L3 }& `6 Y - e2prom_s_cmd arg;
/ y. ?6 F2 ^# Y2 f3 u - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
, v" ^/ a: j% f - memcpy(&buf[6], stbid, 18);/ M. t4 z' k, B
- fd = open(E2PROM_DEVICE, O_RDWR);
3 a8 w% b+ N; l& E: R - if (fd < 0) {
% e4 V F2 _' Q: I+ d, k0 I5 ~ - printf("Device %s open error.\n", E2PROM_DEVICE);
/ T3 f, k8 m! P" Y - return -1;& o7 g# _: [& ]& _3 V% H+ \
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- arg.sub_addr_count = 2;
" M/ ?! L# I1 ^5 P, q; T2 W - arg.data_count = 0x18;& l! @3 V+ X `% S
- arg.e2prom_cmd_sub_addr = 0x290;
4 _% m. l6 @. ]2 Q3 I - arg.e2prom_cmd_data = buf;% b+ U% |, n5 i, E% V2 k& ?
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
. V% h& W0 b- o C1 I1 j/ U6 O" ? - if (ret != 0) {& O, y$ Q0 J8 X( ?% T" F
- printf("Device %s write error.\n", E2PROM_DEVICE);
6 J _; \* V9 m7 S e - return -1;
( D8 h* y8 V7 x( }1 H1 w) p - }
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, G5 q' o3 x, N5 a5 C7 q6 _* ?- return 0;
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- 4 h- G2 ^& O& ] G6 ]
- int main()
# g' w, D: p: U/ s - {$ {7 O8 u( B" l# c. W' Y
- char c;* f$ t; I3 ?3 y4 @
- int i, macs[6];9 F6 y, D3 [) T
- unsigned char mac[6];
# x k! d! M7 ^1 C$ O" W - unsigned char stbid[256];: n0 [; ^ _) F3 T/ {* i" O1 E
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- if (readparam(mac, stbid) < 0)3 _ J) g& ^- h O- O1 a" o' Q
- return 1;( V3 B- j r4 `
- 8 {: v# W4 x6 _. `) Y2 O
- printf("Current parameters: \n");
9 e" U8 ~1 S, ? m - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);( ?5 i3 f( h* n8 b9 A/ W
- printf(" STBID: %s\n", stbid);
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( Q/ E! c# c- c( j+ F+ K% V - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");& p1 q; E3 {* G* K- U9 C1 x0 f" j
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
. p2 ~( t! n( f5 y - printf("Input MAC error\n");/ O9 r* ?% o' A! B1 d3 i: `9 t/ a
- return 1;
5 d! H8 ?3 _+ r+ Y1 X) _" R/ | - }
' b6 K! U, f: i/ J0 n& P! p3 W - for (i=0; i<6; i++)mac[i] = macs[i];4 \! x; H2 b, g: f. E; P
- printf("\nPlease input new STBID: ");
: j0 `% n6 X; d9 h/ t+ r& [ - scanf("%s", stbid);3 |) e; K8 ?/ F' }+ Q* g+ s
- if (strlen(stbid) != 18) {0 T5 _, \9 s' }& K+ x6 u) x
- printf("Invalid stbid\n");7 Z0 p* y& o" m! J- W6 Y7 j# b
- return 1;
3 Y6 k3 x8 r+ v& U+ p - }
! n. W2 ]5 w. G* | - printf("\nNew parameters: \n");
) r3 I6 X& z j2 j) Z1 E+ a# D - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);7 t- U' Y( S+ E& y0 R
- printf(" STBID: %s\n", stbid);
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O" ^7 A* \: l4 l- printf("\nDo you want to change paramemters? (y/N) ");6 e6 @5 H+ t2 i: n7 O+ s# i7 Y: }
- for (;;) {
- z5 ~6 R: x b* F - c = getchar();4 ~. }; o4 `2 F! S: h6 L9 K
- if (c == 'y' || c == 'Y')2 i' ^3 {) V+ e) G0 N% o
- break;
" w7 d2 r T9 e! G# d4 z - if (c == 'n' || c == 'N') {
7 k, d( i# c+ ^: X$ H( ` - printf("\nAborted.\n");
7 U! S4 e6 J; J) M$ p8 Z; A/ {- |5 y - return 1;0 x( k# N$ I7 C- F! {$ l
- }
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- if (writeparam(mac, stbid) == 0) _+ e- ^- s& y4 ]5 C' P$ @
- printf("Parameters changed.\n");& y7 @# x2 E: o; @6 B
) ~# o# t( r# F- return 0;
- h$ G$ t2 I* s! j3 S! p, v4 B7 f9 g/ b - }
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