本帖最后由 0522 于 2012-3-21 23:04 编辑
( q, L& ]7 D3 Z) X) c5 p- k
! S+ p# q. `" I l3 P: t$ A修改的代码早有了。到今天不会编译。( m6 @9 b) O' e* p
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>3 |; U+ p' ?9 ?3 E4 Z; Q4 \2 e
- #include <malloc.h>
( \/ J) Q6 ]9 E7 k1 u' _, O - #include <sys/types.h>
0 C6 g( w2 Q8 X; s) [; `5 s% f4 l - #include <sys/stat.h>
; j* C$ D: I2 ^, Y+ C3 T/ q& t! | - #include <sys/ioctl.h>- @. g. b! B7 y" U& T
- #include <stdio.h>) c" a. ^- Y& T$ ^
- #include <string.h>
a4 m9 _/ D; }! ]7 w7 z, ^0 ` - 8 U. \3 A0 V: y
- typedef struct {7 q" ^) V6 g2 s1 H/ i
- unsigned int e2prom_cmd_sub_addr;
8 y+ E9 p* ~7 s7 w Q1 W - unsigned int sub_addr_count;
3 O- \1 `* Q+ w: u' R9 y, n' [; D - unsigned char* e2prom_cmd_data;" m$ L X# o9 y: _1 k
- unsigned int data_count;
' d* V6 v) k" P* F, I9 a - } e2prom_s_cmd;& F+ ?! d! u5 Y+ ?# e
6 C% \# X1 x) C' e3 W6 _, h- #define E2PROM_CMD_READ 18 O; L- @8 |8 t0 U8 ?% |% n: x
- #define E2PROM_CMD_WRITE 2
" O# s+ D& @) c! H y' c4 {: t - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16". m3 d9 ~6 \8 F% H! M- A, m% ~! U
- 5 q# Y3 X! s) S( _( P, j5 b5 J
- static int readparam(unsigned char *mac, unsigned char *stbid)+ M" }3 P! f! W8 A
- {/ d9 r G% E1 w* Q. ^- k* G' ?
- int fd, ret;# j4 r) d, e) |& @; _. b
- e2prom_s_cmd arg;( t$ T9 r, A: b" B+ K5 }+ S
- unsigned char buf[0x18];% g$ q Y2 ^% ^1 ]9 s( F R
, A( _! G- w3 N& w# j5 A0 u- fd = open(E2PROM_DEVICE, O_RDWR); F- X9 P. j% m8 s1 J/ c
- if (fd < 0) {0 y* z# u! V2 A7 A2 }
- printf("Device %s open error.\n", E2PROM_DEVICE);0 t# \3 t% N" [' ]; O) @
- return -1;# d5 }) Q7 f8 Y3 s$ z' D% e6 H
- }, ^ s' O. E) K# c( k5 L' N7 M* U2 h2 K
- arg.sub_addr_count = 2;
, C' F9 ^ j7 r7 F) \! ` - arg.data_count = 0x18;3 o$ q- M: `2 ?; f" M& v3 T* |; a5 L
- arg.e2prom_cmd_sub_addr = 0x290;
/ @! Z9 U5 C# M2 s" E' q - arg.e2prom_cmd_data = buf;
; c4 H& e9 f- r+ p/ r - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
% b4 v" e" n9 L% T# P - if (ret != 0) {
5 M; `3 w4 c, e- F a1 N9 q - printf("Device %s read error.\n", E2PROM_DEVICE);
/ @- R4 c! t2 Q6 c" W3 Z8 ] - return -1;
/ i2 }( w1 I* Q1 ~2 @ - }- a) ~$ u+ x# l. }3 f1 E; S% |
- memcpy(mac, buf, 6);+ E) n3 @' O6 @6 G1 |+ a p( c
- memcpy(stbid, &buf[6], 18);
. z: W9 w7 J) J$ u( N' ?# f - stbid[18] = '\0';
. V# t; Q! J: n - . j+ x8 I- D* e& p
- return 0;9 J& K3 F- i% A- F0 R
- }
" K' `( C' I' i - 3 Y% I6 t/ V6 i0 i4 P, w2 ?
- static int writeparam(unsigned char *mac, unsigned char *stbid)
9 z( D: x) t( g4 i - {
) V9 J, w1 I1 j. B d a5 h3 p" q - int fd, ret;
0 p/ d3 N, X2 p5 F4 S- u - e2prom_s_cmd arg;
+ J# L" b6 s8 x1 w% j$ r5 _ - unsigned char buf[0x18];5 @3 X% V, w/ A/ S! \
- 2 s. p. p6 D5 S
- memcpy(buf, mac, 6);
3 q. c U: E# c0 b" Q; E - memcpy(&buf[6], stbid, 18);
, M+ Y% @5 M% D - fd = open(E2PROM_DEVICE, O_RDWR);- w( g# c9 n2 _
- if (fd < 0) {9 M" C! O' n% N1 W! ?$ \: g
- printf("Device %s open error.\n", E2PROM_DEVICE);# K. D8 t9 A0 r# x- y
- return -1; O* z2 E. P* |
- }2 u+ N3 U+ e2 w, H/ k
- arg.sub_addr_count = 2;
# V" s: l( L, U9 d! L6 w+ ^ - arg.data_count = 0x18;
" G- y4 v% |+ { - arg.e2prom_cmd_sub_addr = 0x290;
+ m* _$ v4 l. J" ] - arg.e2prom_cmd_data = buf;
& R) q$ X+ {' C1 \+ O, `5 p - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
8 Y8 b, q5 ~- v - if (ret != 0) {7 b/ T! R2 z. N& G6 i
- printf("Device %s write error.\n", E2PROM_DEVICE);
2 X+ M1 }4 M' ? - return -1;* T. m D9 B8 |% N6 j; t' s' ?
- }/ P3 h6 |; n& C9 \) {/ ^' y
( W o: `+ K2 r3 c- return 0;
( w5 u) v7 F- l3 D, q, o1 W: f. ^5 I; y - }& v( }8 x4 [" l5 r# M
5 i* n/ Y% e) g1 N' `3 d- |- int main(). p1 y; a x& P% R$ I; a' T* q
- {# ?' b* U+ |& c$ v
- char c;
) F2 b4 H* D# j - int i, macs[6];
' _% \3 o' c7 C, z/ D8 [( t$ d - unsigned char mac[6];3 y# @( o' m& Y$ \/ b
- unsigned char stbid[256];
( w( O% r( K# Q$ S X - - k2 I9 _1 j7 m z P8 |
- if (readparam(mac, stbid) < 0)
& |3 w; s! E3 \2 r6 l' T5 f3 I - return 1;& n2 r$ I5 y z" W
! B& E F9 Y/ D, d- K- printf("Current parameters: \n");
9 F1 x0 v: ^8 D$ N1 j6 h - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
; t+ t, F- w: X7 Q- N9 u - printf(" STBID: %s\n", stbid);
- H3 P! |: E2 l2 R, Z - , a# `$ g8 l6 u; u3 v$ Z
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
. P% j7 U$ f: ~, Z6 K5 d - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {) G+ {% I0 [8 e& x( B" X
- printf("Input MAC error\n");
" O3 U* w( K& w# y! ~, z, t - return 1;
4 L9 Z& X2 T+ B7 j9 R. @5 Y! R - }0 x% Z( F q# L. E4 D/ Y% N6 @& Z
- for (i=0; i<6; i++)mac[i] = macs[i];. o W8 W. o v7 I8 N# b
- printf("\nPlease input new STBID: ");
0 g3 d3 Z l; A b! H - scanf("%s", stbid);
# a6 I& W1 A, E3 U' ^0 s - if (strlen(stbid) != 18) {4 ^3 c; ], S: b7 m( ?/ g/ L" H/ v
- printf("Invalid stbid\n");
0 L, m; @1 x7 {4 c3 e% h - return 1;$ N" _* T7 D8 G3 l2 Q
- }' P* d2 p$ x( m
- printf("\nNew parameters: \n");7 u: q) q5 V5 S. m# K( \4 y
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);7 G( s& H6 g2 C& e
- printf(" STBID: %s\n", stbid);( x9 O" o' t5 l3 ]& r
$ |) U& g/ Z5 K- printf("\nDo you want to change paramemters? (y/N) ");/ R6 {6 Y) }( c* K2 l. s% ]/ B
- for (;;) {' G8 d2 t" _' u" B$ X e0 ^
- c = getchar();2 a: F$ a0 r, J2 s F
- if (c == 'y' || c == 'Y')
, m# y2 ^2 U, K- t - break;' V3 X+ X7 E: N& U# m
- if (c == 'n' || c == 'N') {$ ?" E" b T+ M0 n6 [. h' u K4 A
- printf("\nAborted.\n");
( R; S% N: G( S - return 1;
% u) V" _- Z+ r$ z/ c2 S - }9 h( S! o* Z% b' H* ]
- }" f9 c: G- `6 U* i( {* Y/ }, `2 W
- if (writeparam(mac, stbid) == 0)
$ u+ E% s8 l4 \' f. N - printf("Parameters changed.\n");
* E: n% r& Q2 }3 H, |9 i
6 F1 f/ }" l7 Y" h! k, A2 S: ]- return 0;
6 W! j. Y9 N; b9 a# o# Z. ~) a - }
复制代码 |