本帖最后由 0522 于 2012-3-21 23:04 编辑
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2 [9 e4 Z% r2 O# Z修改的代码早有了。到今天不会编译。; f% Z* R" R/ [3 I$ P
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>+ Z7 p8 @: M% t+ u
- #include <malloc.h>
8 j, O( d$ j) K - #include <sys/types.h>/ e" Y3 u; V ^) f. {) [
- #include <sys/stat.h>& q9 s3 j% j5 c: ]" I
- #include <sys/ioctl.h>
# U5 E3 a+ O5 \& Z5 @" b+ }9 Q - #include <stdio.h>) Y% a, @ E& k8 i1 y
- #include <string.h>
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5 c6 }. `3 [3 n! g( ]: h1 O+ j- typedef struct {
& l& Z$ E" j9 `; o1 s - unsigned int e2prom_cmd_sub_addr;8 f0 @. B# l1 V* k% J
- unsigned int sub_addr_count;
8 U2 }7 [/ s' k4 Z1 m. i$ j - unsigned char* e2prom_cmd_data;
K# s7 [ u8 Z; q) m: H8 i9 {; O - unsigned int data_count;
+ l/ H( [: O( T" @" ~! K+ e; [ - } e2prom_s_cmd;& d8 e7 N: N, X8 v O6 I; ^* l' D
- ' ?) t* i# ~; z( b! i
- #define E2PROM_CMD_READ 1
. f( K& z1 t' @1 S1 X m4 I - #define E2PROM_CMD_WRITE 2
+ Q- M1 t% k3 j7 T - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"5 ~9 ^3 \; L t$ K3 q1 x+ {& W6 D
+ Y9 j/ @' C! f( \3 }- static int readparam(unsigned char *mac, unsigned char *stbid)) P0 L" `+ e3 I6 N' A1 N7 v" q! n
- {
4 Y: y+ I6 l% S - int fd, ret;( Z/ h2 w8 I2 a) p+ D. I* w
- e2prom_s_cmd arg;
) f% `& M/ |( v+ G - unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);1 k7 x0 P9 d. ^) r
- if (fd < 0) {
" H( |+ `9 A6 m; N/ |# _6 w$ J6 X$ t - printf("Device %s open error.\n", E2PROM_DEVICE);6 w8 p$ A* a! M! f( b" J
- return -1;
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- arg.sub_addr_count = 2;
/ L' H! a! c9 n' g+ ^ S - arg.data_count = 0x18;7 Q# C, S0 `! h" j0 q
- arg.e2prom_cmd_sub_addr = 0x290;. m5 p2 [; k% n1 L1 \- p6 U- L( }
- arg.e2prom_cmd_data = buf;
1 ]0 M8 q: A& G7 s0 J9 R - ret = ioctl(fd, E2PROM_CMD_READ, &arg);! [; d2 n0 p9 Q7 ]9 ]: M% i/ ^
- if (ret != 0) {% u1 K8 H9 ]( L% T O1 m4 F: y; A T6 H
- printf("Device %s read error.\n", E2PROM_DEVICE);
! q" v( [, ?1 M9 O; b7 ^0 ^ - return -1;) F- Z: Q9 ~5 E! G$ Y% K, Y
- }) a- E+ ?" C2 ~8 E/ [" o
- memcpy(mac, buf, 6);
$ ]* D# H9 v1 i# ?" ^2 T - memcpy(stbid, &buf[6], 18);
* w* W* d' f f; M- l2 r - stbid[18] = '\0';
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6 p0 [0 t! N: o4 W" c* n5 K- return 0;
! _& B/ f9 Z8 d8 `5 J& S - }
! M9 E; V7 D8 |: ], a0 W1 Q& q" c - 0 k0 E: G3 F0 m$ B4 H. }
- static int writeparam(unsigned char *mac, unsigned char *stbid)
_6 i. |1 `( q; g8 }9 j3 L - {
: O8 d! |7 @2 W - int fd, ret;
- f: m8 N# J c: _. | - e2prom_s_cmd arg;0 \% H2 F0 n2 E2 g A6 E% X
- unsigned char buf[0x18];8 H8 e7 H9 t8 E1 h3 q2 {
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- memcpy(buf, mac, 6);. T1 A: _0 S1 N: _& p; E
- memcpy(&buf[6], stbid, 18);
4 @3 x7 G `3 r1 ` v' ^ - fd = open(E2PROM_DEVICE, O_RDWR);
: {9 Z+ @& J3 q2 M0 \ - if (fd < 0) {3 ?1 N7 g& G' P+ x* y6 V1 M
- printf("Device %s open error.\n", E2PROM_DEVICE);& f% O% V4 o+ ]6 o9 w& ^' |
- return -1;
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- arg.sub_addr_count = 2;
+ g7 v' F+ o8 d' \/ c- k- \' _ - arg.data_count = 0x18;, h/ G$ q: V6 Y
- arg.e2prom_cmd_sub_addr = 0x290;
7 s1 o" h' |9 ^# k/ A. j- G - arg.e2prom_cmd_data = buf;
, `# Q3 ~( A. ]. C4 E - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);3 ?( X) p) b; j7 b
- if (ret != 0) {4 a# j) I- X+ Z7 Q. k/ R! i
- printf("Device %s write error.\n", E2PROM_DEVICE);5 {8 Z4 ~% [1 d$ w. F& w9 T
- return -1;
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5 b$ d" ^. `) s7 E3 Q y+ v0 m. L- return 0;6 V+ u8 s1 v, h* S1 U* z
- }
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- int main()" D9 t, J& i! E& ]+ \! z0 ~% X
- {% ] @; Z, \. ^4 O
- char c;
- y9 Q2 g! P% ~( c' S) z5 `1 k - int i, macs[6];
; v1 V: h4 _4 Q$ N - unsigned char mac[6];" g& ^6 A8 V1 E u: o: ?
- unsigned char stbid[256];8 [4 O$ R) T9 u ~# n
" a6 O( e6 |% Y, ^9 t* b. q4 T- if (readparam(mac, stbid) < 0)) B+ ]* x8 i8 O
- return 1;
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& Z Q! w- Y, Y8 I+ s- printf("Current parameters: \n");
, M/ }! _, P9 [" @3 e - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
0 A+ e. U2 e$ @7 F/ k! R, Z4 K - printf(" STBID: %s\n", stbid);
- [9 M# O$ }, e% g4 A ?7 ] -
% p" m% b: T4 w- V+ ~ T2 C2 I - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");: j- @% d; s ~$ O$ g: [" P1 G6 U0 B
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
t1 o$ [) R$ l3 c6 I4 H - printf("Input MAC error\n");! t/ ^! S5 N& j8 q2 U% ]
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];
) j7 ^8 D! W" [7 J8 _ - printf("\nPlease input new STBID: ");8 a& i) @/ w& o! m" w1 m
- scanf("%s", stbid);8 A" p' I, c( ]
- if (strlen(stbid) != 18) {
! i- Q# D9 J8 h: |' {) s# \ - printf("Invalid stbid\n");
4 C4 o4 a( S! @9 d7 e$ k, c - return 1;4 c, J) C6 i& s8 d) z
- }/ _ f i) M S- C0 K5 \( j+ o; J
- printf("\nNew parameters: \n");
, e ] l' l/ y& ]/ J - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);7 R' }* q6 H* W
- printf(" STBID: %s\n", stbid);+ x; l% s' ~0 w b% X' h
( Y, |- C5 A& Q/ m# `2 G- printf("\nDo you want to change paramemters? (y/N) ");! i8 D8 y/ v; B* E: ^) ?# g
- for (;;) {6 N5 ~% V) w- i$ p. ?
- c = getchar();
" J7 U$ p% d$ ~+ m$ Y: j% I! ~ - if (c == 'y' || c == 'Y')$ ^# [) h* V2 M/ d' ?0 H' Q
- break;
' t# @8 D/ ~5 s s; y - if (c == 'n' || c == 'N') {
5 t! p! r, @0 G - printf("\nAborted.\n");
+ J2 F1 r8 n& j4 y7 a# A- c - return 1;. F( j: Z. [ A+ W6 }
- }
6 A; W! H7 k5 P e( ?$ J ? - }
6 ]: @5 s7 U, M; b v$ t% l - if (writeparam(mac, stbid) == 0) ; W8 {6 h8 F f# c3 W# `# k
- printf("Parameters changed.\n");
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- return 0;
/ U7 n+ ~! z, V | - }
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