本帖最后由 0522 于 2012-3-21 23:04 编辑 + B1 K1 T6 ~- H" z& _
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修改的代码早有了。到今天不会编译。: J- o9 P! u4 i9 o
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h> \5 C" T1 K) b3 P! ^, J( ?' x
- #include <malloc.h>
" |. w# n; p1 K$ W' M7 X - #include <sys/types.h>
h. h% `( F; `$ F+ y, z: y% @ - #include <sys/stat.h>0 s4 Q6 l: Z/ q& P% C; S( m
- #include <sys/ioctl.h>
% A, {/ D+ I. Y& u& `" \& | - #include <stdio.h>. g: l" D; h5 r$ {
- #include <string.h>9 d5 `8 S1 @* p, j+ G, E
- L7 n" _( I& p& ]1 _
- typedef struct { B7 ?( S( O$ Y* A
- unsigned int e2prom_cmd_sub_addr;
3 N2 S6 e) S4 [ - unsigned int sub_addr_count;
% m- }* x% o5 R; Q6 l2 u - unsigned char* e2prom_cmd_data;
+ D" B( x* h) s' ~" T. Q4 X' S; k - unsigned int data_count;6 n/ O$ k5 X% m! @5 N) P
- } e2prom_s_cmd;
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( e- d5 F4 _3 A2 l4 n. f/ c4 G- #define E2PROM_CMD_READ 1
# v3 v3 x O$ }+ A1 A - #define E2PROM_CMD_WRITE 2
. c- b2 @2 H- W, [* h - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"/ S# i: q! [. ?
8 ~' J& D0 {/ W5 q( z- static int readparam(unsigned char *mac, unsigned char *stbid)5 w% L) s V8 Z1 |
- {
* u# I0 W+ m2 K. {. { - int fd, ret;* W8 g! l2 h4 H
- e2prom_s_cmd arg;8 n' ~/ |# d7 g/ |: z
- unsigned char buf[0x18];
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/ [/ D0 H1 {* t+ L( N8 `- fd = open(E2PROM_DEVICE, O_RDWR);
: C8 b0 S7 A: V - if (fd < 0) {7 I. ^& L3 E& h) a* R8 g( {
- printf("Device %s open error.\n", E2PROM_DEVICE);
0 T+ M( D( G3 a - return -1;
4 Y) V( |# G% o3 u0 a( f - }
+ m( A* N8 p, i) J: @ - arg.sub_addr_count = 2;
2 g+ x( W! e: E* R - arg.data_count = 0x18;
9 M+ Y+ ] k$ U5 @9 a% J+ Z2 V6 l5 b - arg.e2prom_cmd_sub_addr = 0x290;; O8 `" |8 J: A. |( H
- arg.e2prom_cmd_data = buf;
7 [: M% s& {0 U+ @ - ret = ioctl(fd, E2PROM_CMD_READ, &arg);' l1 m. t' H# o$ P/ M+ t
- if (ret != 0) {) x" r1 ~. i+ q: V+ c0 e
- printf("Device %s read error.\n", E2PROM_DEVICE);
" H! |8 {5 S/ `0 l& @/ \. w% P - return -1;7 b; a0 K1 p% k: `! y O, t, H
- }* r! B Q' Z. W# b- y5 i
- memcpy(mac, buf, 6);
6 b; N4 m! N- {# _8 `; v: z - memcpy(stbid, &buf[6], 18);7 o$ [0 q! n3 x" g+ n) G/ |4 t
- stbid[18] = '\0';" M- Q, \; ^7 k0 D+ q: L: e& u
) T0 P! y& Z; p I- return 0;, M6 i/ g- I3 e, R% H+ p6 \; N& J5 W
- }
0 P: N4 h: W) ^4 [6 V+ h4 S, w - # r# \- s6 o& m- W+ | C# X
- static int writeparam(unsigned char *mac, unsigned char *stbid)& d% Z9 T! J" W6 G
- {2 a) F- W K# H! o! P9 d
- int fd, ret;: \& t3 {" N* c, F4 e
- e2prom_s_cmd arg;$ \3 S% H0 w6 `2 t( z9 A4 W
- unsigned char buf[0x18];) F( e: w, m+ A! F7 B$ [
: Y7 G! f6 q" z( U: y- memcpy(buf, mac, 6);( a: v# D( _+ \. \+ d! N
- memcpy(&buf[6], stbid, 18);
3 Z2 q6 i; A; J- s - fd = open(E2PROM_DEVICE, O_RDWR);
! O( U; x8 Z3 Y. B( M - if (fd < 0) {
B+ Q1 ?$ Q1 d/ X- r" ~0 B/ |) t - printf("Device %s open error.\n", E2PROM_DEVICE);4 i' r6 R9 M) B+ D, d7 @# q ~% w
- return -1;
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- arg.sub_addr_count = 2;- Q- I" d1 [2 Z2 k6 [3 z# A7 ?
- arg.data_count = 0x18;
1 O, |' I* a9 }; [ - arg.e2prom_cmd_sub_addr = 0x290;
0 x0 S: Z/ g4 w - arg.e2prom_cmd_data = buf;
9 U$ y ^( b3 b - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
$ S6 m' j; D0 b - if (ret != 0) {
9 c7 a, X$ L. D; I; t - printf("Device %s write error.\n", E2PROM_DEVICE);
0 Z7 W' ^" V" O3 t* y - return -1;" r2 t" n, R4 D% X+ c: h
- }
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0 n, e2 t. Y, C9 W$ G- return 0;
/ a7 S; \# r- ]* v6 D - }$ ~% f2 |2 T: |7 A% i
1 ^& @ d" N1 k6 T- int main()
7 Z- n @' N3 b+ {! {* q6 _ - {3 f. ^( `+ C5 t2 f, G
- char c;
) u) d2 h/ P. `5 |: M$ H# U5 \ - int i, macs[6];
N* d) Y4 Z- I0 H - unsigned char mac[6];
* b1 o# S" }9 q - unsigned char stbid[256];9 [* o1 {+ i5 n/ u
1 z8 W9 D, k; O e" @- if (readparam(mac, stbid) < 0)
0 M! x* k4 U3 ]$ }$ z3 I - return 1;
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- printf("Current parameters: \n");& S4 K. `# S% c. ^' z0 X& g
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);& y* [2 Y2 ^; X- b7 i. P
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");0 @/ y7 Y2 l6 b
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {) [1 [7 b2 r7 m+ l6 F& C$ ^
- printf("Input MAC error\n");
* `' N3 C/ W: O3 q% g+ R - return 1;
% D! k6 N- L$ S1 P L+ W( g - }
8 w' J- w8 ?+ u" h - for (i=0; i<6; i++)mac[i] = macs[i];: R B m0 n7 M6 J' \: V# O1 D
- printf("\nPlease input new STBID: ");
, z8 M. o/ i S N# G - scanf("%s", stbid);" |) ^( w6 P/ S3 s/ r
- if (strlen(stbid) != 18) {
7 @( Q, M1 M" ?' E - printf("Invalid stbid\n");$ r! k a0 f6 `2 X+ l, K4 l
- return 1;
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- printf("\nNew parameters: \n");8 q, N* }4 Q7 s: W7 Y) Y
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);9 [+ o3 V6 W( R# t1 G, c
- printf(" STBID: %s\n", stbid);
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" _% G* @. R" E# C- printf("\nDo you want to change paramemters? (y/N) ");
3 h6 f& i8 q8 x" V - for (;;) {/ d. f# y3 u) B& H: }# L) z
- c = getchar();
- p+ i, ?; U; q - if (c == 'y' || c == 'Y')
8 R7 v+ X6 z+ b( D0 y5 V3 [' N - break;
1 W- f. v# ^/ x+ e - if (c == 'n' || c == 'N') {
6 @/ v9 A/ s' t5 G - printf("\nAborted.\n");
' F) v6 W1 V2 H% W3 k - return 1;
' `4 F3 v; e8 u2 w* o2 G1 h- j - }9 n/ a+ K i( N
- } ]' E% ]# b: J2 u G8 w0 { ~4 {4 Y
- if (writeparam(mac, stbid) == 0)
5 _1 Q4 _& ^8 X+ ] - printf("Parameters changed.\n");+ ]4 \! I- c7 \- |
8 c; b |9 b$ W1 k- return 0;* Q1 c: I4 x" O4 Z$ @+ I# y- P
- }
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