本帖最后由 0522 于 2012-3-21 23:04 编辑
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0 w% s# C3 j' k. I修改的代码早有了。到今天不会编译。# l; w1 J. L# ?; g2 Z/ s+ f3 m+ g
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>0 `6 ~- ~ G7 h3 F( c8 ~; H
- #include <malloc.h>$ J9 O8 h( @ r* `, {* j$ q7 q2 S
- #include <sys/types.h>
& f2 v( w0 Y6 j- p; E5 M - #include <sys/stat.h>8 B( t0 y a/ a, P5 I$ W8 j2 a
- #include <sys/ioctl.h>7 W7 I9 @4 c7 j* Y1 t
- #include <stdio.h>
7 t6 a" A O- J! |! l R - #include <string.h>
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3 ^' ^& @; X5 z0 S$ F. ]/ j- typedef struct {. q- E, T7 H# h0 V- W$ c! k& Y- M
- unsigned int e2prom_cmd_sub_addr;
1 U2 P+ W; _6 Q, h' {" C" q - unsigned int sub_addr_count;/ y, y' n+ @; n& E( Y4 A, ^
- unsigned char* e2prom_cmd_data;
) L" r2 `5 C2 { - unsigned int data_count;
' G" W8 |- H( @6 W: n; N) b r - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
/ E' q/ S( ^# Y' o L% k - #define E2PROM_CMD_WRITE 2% I$ f/ W% @/ M5 Q- V; s' G
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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1 l- n, D& Z! w9 t$ m* b- static int readparam(unsigned char *mac, unsigned char *stbid)0 a! \' |1 k% h
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- int fd, ret;6 R5 b$ l9 R4 N8 {
- e2prom_s_cmd arg;
2 E0 i; x+ n; A* Q - unsigned char buf[0x18];9 G2 K, A' e0 y5 U3 ^
6 J, }) T1 T: a- V- fd = open(E2PROM_DEVICE, O_RDWR);; f4 d3 d \& E1 W) E' M) ~6 V o+ q( X
- if (fd < 0) {9 w- {* T! b! q. c; t
- printf("Device %s open error.\n", E2PROM_DEVICE);
8 T- }/ l3 R& j1 q0 e - return -1;
2 D- J; M# r+ ^% u6 O7 V1 z& Y - }
2 ]; {! M% g) H# m8 g" X% @8 F - arg.sub_addr_count = 2;
+ K7 U. g7 b- R4 i8 ~ - arg.data_count = 0x18;+ i4 C% L- l) n B8 S
- arg.e2prom_cmd_sub_addr = 0x290;! S ?4 p# w9 \: a, F# j
- arg.e2prom_cmd_data = buf;
9 |0 ^$ c1 h( E& _8 y - ret = ioctl(fd, E2PROM_CMD_READ, &arg);, X: a) Q( L7 h& `9 t. M0 k5 l
- if (ret != 0) {
# P+ u; m, K1 R8 k" m. ` - printf("Device %s read error.\n", E2PROM_DEVICE);
8 p3 G, F, r& b' S4 o. M, Y% n - return -1;
2 s' Z, n4 s4 A% m( I6 p - }; _" t9 u8 R& F( i" z' N+ D7 X
- memcpy(mac, buf, 6);
f \ ~9 t* O: ~ - memcpy(stbid, &buf[6], 18);
: P9 y2 n. K& I7 p* N! o - stbid[18] = '\0';
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- return 0;$ H) a0 l: P( k, O- U4 }: H
- }9 T$ S1 H3 p4 q' d" {
a9 |* N( e/ G0 x Y }- static int writeparam(unsigned char *mac, unsigned char *stbid)- w* f# s1 I3 P0 P6 ^' U9 v9 W
- {- h H! G0 K" E9 N1 O( ^1 x5 ~
- int fd, ret;
6 A0 Q$ X* [1 n: m( h3 H S - e2prom_s_cmd arg;
( ~, p7 f: s9 t2 O - unsigned char buf[0x18];% @0 b8 _, s3 U; @" \' l5 ~: y
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- memcpy(buf, mac, 6);
4 K; ]4 B: d6 M: u1 i+ _! d! m - memcpy(&buf[6], stbid, 18);1 \* A. @ P/ x
- fd = open(E2PROM_DEVICE, O_RDWR);+ ]5 I" ]0 I) R- h k9 Z, A M
- if (fd < 0) {; l1 X/ k9 s) V; e( g9 V
- printf("Device %s open error.\n", E2PROM_DEVICE);7 O, k( h9 z$ Q( S" e [
- return -1;- t5 k, ?2 B5 {" x
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- arg.sub_addr_count = 2;
1 l/ y2 ^- q' g" M) q - arg.data_count = 0x18;
/ L7 V0 |% C4 v. a2 Z - arg.e2prom_cmd_sub_addr = 0x290;
% e% @; p0 f1 x T- }( ~8 t - arg.e2prom_cmd_data = buf;
* x' N- j/ b+ n! | - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);- w" P W' @! v+ R+ W- `% s
- if (ret != 0) {3 o( w. i) g7 h. q' s
- printf("Device %s write error.\n", E2PROM_DEVICE);
+ Z0 e# O" d) _! H) A' I - return -1;
0 M1 U0 ?6 c5 T& b1 i9 a8 } - }
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; l0 k8 e+ W2 A; z! j! P2 a- return 0;& N0 V$ r/ t* y f7 |4 L& `, f& s
- }
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- int main()0 T' I! p+ x; o4 D- m
- {
- d! C w# s0 ?% w Y3 W! R - char c;' |7 V! x) M7 ?/ T& F! u9 J
- int i, macs[6];+ g4 |2 v3 }9 [4 {3 Y
- unsigned char mac[6];
9 B% q: x+ ~' _% [: s7 @ - unsigned char stbid[256];
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8 F3 q" s2 Y7 b0 }- if (readparam(mac, stbid) < 0): v7 i6 _5 Q$ T$ @1 D% z H) U
- return 1;
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- printf("Current parameters: \n");% J) @$ P8 G+ W9 I6 {) L7 S
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
, Q! B3 j% b9 `* I* C - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
4 b1 L5 q* T. Y - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
5 Y$ M% ]! l; ^! G - printf("Input MAC error\n");
4 j5 A9 ]1 {2 N0 d3 f M* D8 k - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];3 m3 U* C/ H# n
- printf("\nPlease input new STBID: ");6 w3 s" [; ~" P9 ^
- scanf("%s", stbid);
$ s/ h0 [- Y& F. i; t9 z3 L - if (strlen(stbid) != 18) {
# i. _- B: Y% r$ h - printf("Invalid stbid\n");7 o+ q% ]3 c0 U$ f! p
- return 1;! W* I, I; J# t2 ^6 Q3 _" k
- }4 d! V) ~; m, {# i6 n! x
- printf("\nNew parameters: \n");9 \3 ]9 U( j, J- u
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
2 D8 ~/ O, H7 t* g3 _- N - printf(" STBID: %s\n", stbid);
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`" p7 d( ~3 e# _5 V' L2 w- printf("\nDo you want to change paramemters? (y/N) ");
3 d1 h9 T# u+ H! @( F1 a- a - for (;;) {2 g# X$ p( a2 j& B
- c = getchar();$ _7 ?7 b E4 ]$ k
- if (c == 'y' || c == 'Y')
1 p- q; ~! G- f2 g1 d1 V - break;% {! G# X8 e) a% {; j G
- if (c == 'n' || c == 'N') {
- W! l3 P& m$ t: T/ g* t! X - printf("\nAborted.\n");; k/ ^/ L' B: p; [5 I
- return 1;
6 }1 s5 v( N2 g% L% h* {* N3 L0 F - }
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- if (writeparam(mac, stbid) == 0)
" s/ z3 t, b3 }' h3 Y - printf("Parameters changed.\n");4 k' u O( t/ l" z# E) k7 A" e
8 w# k! d( _5 Z- return 0;* ?8 e* }8 T& O4 L) u
- }
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