本帖最后由 0522 于 2012-3-21 23:04 编辑
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7 W4 Q' ^9 V, v3 r: O7 U( m修改的代码早有了。到今天不会编译。7 c7 S! E! @7 y; Y! [
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
( I4 ?$ ~% L- B; u - #include <malloc.h>
5 k! g k/ A0 N' s - #include <sys/types.h>
$ u# j8 x1 `; H1 R - #include <sys/stat.h>
% k. R; p! K; I" w; v - #include <sys/ioctl.h>
- l2 l& q* u" z( n - #include <stdio.h>
1 y, h7 T! K$ Q - #include <string.h>( a* E5 g. {2 ]% C3 Y
- + z: f7 ?3 }9 ]0 g1 g$ G2 }
- typedef struct {
' J, M& Z2 F) V; d - unsigned int e2prom_cmd_sub_addr;1 A" q* ]& D6 ~6 X
- unsigned int sub_addr_count;
- i! Y& b; P* F5 x- c! f8 | - unsigned char* e2prom_cmd_data;
" I2 j1 L N6 V, _$ G3 A; r n - unsigned int data_count;
; j1 X+ ^3 Z1 W7 a, ] - } e2prom_s_cmd;8 W, L. S: |. b( }, S# \/ ]
7 {, E8 X4 ^% S' d' m6 B" `0 f- #define E2PROM_CMD_READ 1
( b' ]- K4 W$ E1 Y5 { - #define E2PROM_CMD_WRITE 2
3 [5 x9 J7 c' D; t5 z9 L6 p* ?; B - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"! {# n: R; A3 T0 k( K* Q" D" j5 F) z. t
- % f8 P# I0 \; g
- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret; s, f0 m" t; a- ~: J [
- e2prom_s_cmd arg;' d+ j% n' l7 z: h# _& s: W F6 o) y
- unsigned char buf[0x18];
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* d% s& U% a2 W3 H- fd = open(E2PROM_DEVICE, O_RDWR);% M' V, m, a1 V' R- L$ }
- if (fd < 0) {
* r9 Y7 Y- _9 b- K - printf("Device %s open error.\n", E2PROM_DEVICE); S3 P" n1 y! ]5 B
- return -1;
0 `/ _' A. |$ l6 h5 w - }; W1 R9 {2 K* p3 U. p4 P
- arg.sub_addr_count = 2;7 w* t4 ]( y4 j" R' ?4 f
- arg.data_count = 0x18;* L: J# J# c# C. ^; Y
- arg.e2prom_cmd_sub_addr = 0x290;
+ A( ?# e6 ?1 {2 a6 `- ^1 ? j - arg.e2prom_cmd_data = buf;8 y4 ^' K- ]' E0 C: F
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
& e6 m" `$ t8 p0 G+ D8 j - if (ret != 0) {
2 K2 e, @( F+ i5 _8 Y) I - printf("Device %s read error.\n", E2PROM_DEVICE);( U5 X, }9 ^0 C
- return -1;
. Q8 \5 R/ a# B - }
5 m* P. t( p' Z: \; A# @ - memcpy(mac, buf, 6);
, q7 h! X& O- [' N - memcpy(stbid, &buf[6], 18);
) Z' E" i9 d" i3 K4 i8 ~ - stbid[18] = '\0';
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- @7 Q) R$ A+ r+ y, E2 j8 _- return 0;9 q6 @, S5 e/ c6 u
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- * ]& A C* w" c) {; q+ D
- static int writeparam(unsigned char *mac, unsigned char *stbid)
% R V* c' A" n5 p - {
6 J! B: n# w# u7 {+ M - int fd, ret;
% Y5 |) ]1 e1 N& h- Z - e2prom_s_cmd arg;# U) ]6 p) t6 L( e
- unsigned char buf[0x18];$ }0 f6 P0 M& w0 c
- . ?7 n7 A+ ~' z7 D* j
- memcpy(buf, mac, 6);5 t# K3 x0 o! {# c# L, J
- memcpy(&buf[6], stbid, 18);
5 c" ]3 J7 ~! L6 m( o - fd = open(E2PROM_DEVICE, O_RDWR);4 d: _+ y: y% B2 e+ @9 u/ j' Z
- if (fd < 0) {
3 ` o7 n" x2 f0 P7 x+ S - printf("Device %s open error.\n", E2PROM_DEVICE);( _9 }. h$ X, W3 ?. @( |
- return -1;
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- arg.sub_addr_count = 2;* p1 C6 A4 Y0 i1 P( N0 h
- arg.data_count = 0x18;; f4 D& V- a4 Q; C. Q; Q
- arg.e2prom_cmd_sub_addr = 0x290;- G6 m1 |( M9 A# `9 I
- arg.e2prom_cmd_data = buf;- p4 {* W _" a, e6 V+ v% o+ v
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
1 q# l& ~# h- F8 h - if (ret != 0) {7 `1 Z4 o" J0 i9 ^+ F- k
- printf("Device %s write error.\n", E2PROM_DEVICE);2 T. _( n- v V1 Y
- return -1;( W" |% c& `+ o# P
- }
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% g/ M4 B& s+ z2 x3 C" B3 q- return 0;8 r" Z/ k' V& p' h( J7 N4 ~: z' T
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0 @8 W7 E# k/ M% j2 m- int main()
# Y8 X$ i9 h Q* F% l. l/ L3 b - {5 L& b+ X* k4 A' Z' b& P
- char c;
* @% E7 n- D% C - int i, macs[6];
% y; K& }# h, ~" S8 U, O k - unsigned char mac[6];
/ ?# b! F X8 K) j - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)0 Q3 y7 i( E% G/ q- Z
- return 1;( u) W1 O, K8 {1 g5 Y( J% B" m T, X
5 S" i' c& {, O( J: n; U- printf("Current parameters: \n");
3 H% R- ?( m7 a- u2 k* u) f4 F - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);' I- P8 X" }8 ^3 v8 s: `1 A
- printf(" STBID: %s\n", stbid);4 W+ J# s3 Q& Y! m
- , e/ f% K/ l2 l7 w1 `# S$ t
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
- Y9 I) T1 `0 W/ o# n' r; | - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {4 b* {. M; E s3 E0 J% M+ {, p
- printf("Input MAC error\n");
3 K1 i4 g: j- w3 Q: ` - return 1;( |0 Z. S7 G- I- Q) y
- } k8 s! r* W$ H& r
- for (i=0; i<6; i++)mac[i] = macs[i];
, x8 K0 U2 p! D! R4 C/ J - printf("\nPlease input new STBID: ");
9 c# G1 r Y' S J, j- k0 Q - scanf("%s", stbid);) K! M) W1 o L9 U1 x b
- if (strlen(stbid) != 18) {: L; c' e+ E& u0 S7 H; m
- printf("Invalid stbid\n");+ g& m9 \ A" c3 h
- return 1;% w8 D. f& f# y+ r4 n/ y- M
- }
7 X. D R% P+ y- r/ O% D2 w - printf("\nNew parameters: \n");' I% t( @# a8 h* I
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
! t3 g/ ~6 c8 K. G: w/ Q* v. { - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
# |7 e' i* _9 y3 _) ? - for (;;) {
- ?% S" A# F7 q9 L8 K - c = getchar();! D- V8 f/ R8 f
- if (c == 'y' || c == 'Y')
* Y: z; h/ P" o5 n* O j# M - break;& J9 G# R$ P! c* X
- if (c == 'n' || c == 'N') {
/ o! K3 Q+ I- G; K; B9 X- K - printf("\nAborted.\n");; `# U* N- [; z
- return 1;: N, f; u' M' c, v. V
- }
) w, M. k. Z1 B/ z3 o - }
1 G% z- P, K( i, m - if (writeparam(mac, stbid) == 0) 5 e+ j1 \ P' ` u9 R& ]' m
- printf("Parameters changed.\n");6 E) ?/ |# ^( D- z p8 J! g
! L+ U1 t( @3 w& s: T9 V6 N- return 0;; c" w: c3 f Y7 n+ v) Y
- }
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