本帖最后由 0522 于 2012-3-21 23:04 编辑 ! v" w0 D7 u" D) z
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修改的代码早有了。到今天不会编译。
+ q/ | K9 q7 n0 N* {需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>8 C! M ] U' {3 e8 L6 T' U3 \
- #include <malloc.h>
- C1 I6 w( N0 ?& V - #include <sys/types.h>
* {# Q, R1 ?8 y# `1 @/ M - #include <sys/stat.h>9 H, Z; v" r5 P4 K. E, U6 V
- #include <sys/ioctl.h>
7 y8 n- f, X" a6 L - #include <stdio.h>- o2 B0 k8 _- b# K
- #include <string.h>
5 `; x" P* ]- r
: @& ^% e* m) z0 Q7 _9 C6 y( d- typedef struct {
% `( P- W' J7 A9 P5 ^8 N# M - unsigned int e2prom_cmd_sub_addr;0 h7 U7 h% i; l3 a- g
- unsigned int sub_addr_count;
6 {" s2 g5 O! K3 U7 o* o1 f1 X, C - unsigned char* e2prom_cmd_data;& y4 w' V' w- I* F6 ?( Z+ W
- unsigned int data_count;
: w7 p, f7 ?8 u! v/ N - } e2prom_s_cmd;* B, C% O& I0 ^. e2 `
- ! t( b' [8 W+ h5 u, O& t5 ]
- #define E2PROM_CMD_READ 1
* x0 O4 x4 x! F* m$ s - #define E2PROM_CMD_WRITE 2
( [0 K( T* b7 d! n% F - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
7 c) b" H4 b7 ]+ k3 X1 B2 u2 c - : B9 f% J4 g( p6 g8 p# \6 B
- static int readparam(unsigned char *mac, unsigned char *stbid)" V& _; l5 _# y
- {; P7 r$ z* V7 a" U; r0 c
- int fd, ret;1 k. I0 @8 C% U( z7 b1 Z
- e2prom_s_cmd arg;
* Q) k- P; D3 r% S! L - unsigned char buf[0x18];) q, b# o+ Y( q/ f- b
- ; F' p6 D& o( J; p n" O
- fd = open(E2PROM_DEVICE, O_RDWR); B8 S$ L a7 A& \$ r# t
- if (fd < 0) {
( K0 f" M* q- \/ I4 R% ~8 K - printf("Device %s open error.\n", E2PROM_DEVICE);
' s1 {9 b" p& P& G! C# B - return -1;
% Q. r7 d) x( o3 U - }
: M# e' [9 E4 H+ u( Y b! R& ^ - arg.sub_addr_count = 2;% j& [5 X# Q" k( L
- arg.data_count = 0x18;3 }! y% E# k6 E9 V. w
- arg.e2prom_cmd_sub_addr = 0x290;6 f% o% g9 W4 ^
- arg.e2prom_cmd_data = buf;
7 d' F& _. M1 W! O2 h - ret = ioctl(fd, E2PROM_CMD_READ, &arg);) @2 H- I1 _ v9 s
- if (ret != 0) {
/ }7 X- d" }; [2 W - printf("Device %s read error.\n", E2PROM_DEVICE);% m, z% t5 C" i8 W" P" P7 W8 Q- {
- return -1;
+ ]0 P4 r @# b c( ? - }9 \- `* @' j. ?( ~" ?- S
- memcpy(mac, buf, 6); q/ ?: o4 B3 t/ }
- memcpy(stbid, &buf[6], 18);
, ]1 Z/ n# v( N2 }: s s* O' i! m - stbid[18] = '\0';
/ \4 M/ N2 p% Y- b; k7 R* R - 2 k9 @, E; W- ]: Z$ P B6 h3 V
- return 0;
r/ q- q& {( Z/ g. Z3 w - }" R* c# `/ O; ?5 c7 g
- 0 B, }" o9 C# C' \! U6 o
- static int writeparam(unsigned char *mac, unsigned char *stbid)
. i. w9 \/ l( w, t5 Q! o! ^ - {
9 D5 S. D. f6 s1 f0 U$ n" i - int fd, ret;( { X$ c/ T6 w' R: e8 F2 |3 `
- e2prom_s_cmd arg;" Z9 @2 J1 C. C, t) Z2 {4 x, O( s
- unsigned char buf[0x18];9 m; \+ ]$ p' j) s6 P, ?: }
7 O: w' d/ r) Y8 V- memcpy(buf, mac, 6);- r( S$ J7 c i+ M) w x& h+ q" E
- memcpy(&buf[6], stbid, 18);
7 ?; K( _" \9 K) j6 f$ \+ M7 f - fd = open(E2PROM_DEVICE, O_RDWR);1 Y* {! h, n5 w" X
- if (fd < 0) {
3 |/ Q& f6 p0 x- o/ v# B' F - printf("Device %s open error.\n", E2PROM_DEVICE);
6 C3 Q* P# A7 \4 h0 [. m1 [ - return -1;
( @" E3 I; Z6 \3 ]2 l @8 T9 q1 F" I. F - }2 H( \4 x) i& K, {4 s
- arg.sub_addr_count = 2;/ h/ G8 t4 Z' D) r0 r J$ K$ N
- arg.data_count = 0x18;
6 d: Q ?% z+ D" P) B1 D% r. I - arg.e2prom_cmd_sub_addr = 0x290;9 ^; e" e6 R) l: F
- arg.e2prom_cmd_data = buf;, N8 @8 _" y& U7 Y
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
9 |) v% ^2 D9 J/ J - if (ret != 0) {( ~3 q9 |2 @5 e4 }$ H
- printf("Device %s write error.\n", E2PROM_DEVICE);
$ y0 @; o, e) F6 M - return -1;
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0 O( a& }3 u, W9 |6 ?- return 0;; o7 q" `& C, N% l" H; v- d
- }
0 @* U3 Y8 W4 k) b' I - 6 \1 j5 ~, b. r! h
- int main()
$ T( j3 X8 k5 M+ ^2 a9 C - {
5 Z( d9 |( u0 o' [: F7 P7 ?2 S) c - char c;0 j. C4 w1 u& E9 c. }4 l
- int i, macs[6];- l2 x* x- p1 D" {! P% m
- unsigned char mac[6];
( T& t7 a ?/ ]3 w - unsigned char stbid[256];( L" ]0 I. a/ |- Q1 T# ~
- 4 h; t% O) D5 g9 I( _
- if (readparam(mac, stbid) < 0) i1 ?% X1 g1 b- J3 L( v
- return 1;$ R* J$ A w7 L9 \: d# R' I
: p* [ p2 Z0 r" f/ l- printf("Current parameters: \n");( p7 E! Y$ r) O$ i
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
6 _) s9 v7 Q! x$ M, o0 ^. s - printf(" STBID: %s\n", stbid);0 n; F; z7 e4 h: E5 w* @; ?4 Q) o
- % l4 @5 O$ Z9 R
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
4 ]- W; t9 [& i1 e1 e - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
2 T- r: s2 Z6 m: ?) } - printf("Input MAC error\n");
: L5 @- l9 e- v8 s+ e - return 1;0 h8 Q: T7 D- S* E: A
- }/ E& r8 F6 N; k2 s' B K
- for (i=0; i<6; i++)mac[i] = macs[i];
" i; P4 S' q9 K7 U1 M - printf("\nPlease input new STBID: ");+ U3 P; _, z( ?9 g+ {. `
- scanf("%s", stbid);2 s5 A5 g. j8 C
- if (strlen(stbid) != 18) {
( d; d) X% `" g7 m! w - printf("Invalid stbid\n");& K1 @* F3 z" j! r5 Q
- return 1;
" M! N5 v2 M0 n; z Z5 @6 I5 D - }
* G# R, t; @; S' W( C. b; S3 C: z4 S - printf("\nNew parameters: \n"); D: @ n, Y0 Z
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);( {9 }1 l( H' j% z; `, Q) j) m: C
- printf(" STBID: %s\n", stbid);4 ]& |0 D. c7 n* @- x: ^9 |
- ! L7 n1 Z) S. N9 {% @, p- W4 T5 I+ c
- printf("\nDo you want to change paramemters? (y/N) ");
$ i n" J* r6 I: l! u$ u; B - for (;;) {7 q5 l& t, j/ C! N# H
- c = getchar();) q4 M7 n7 @3 H- b- x
- if (c == 'y' || c == 'Y')
; t7 { c' P; R2 V5 s$ A6 i8 | - break;
7 R& \& s2 j' f. m% C - if (c == 'n' || c == 'N') {4 O" b6 l5 r: t, d8 F* D. `
- printf("\nAborted.\n");) e1 l( N0 n$ t i8 Z q! F
- return 1;* [ F- T8 Q0 i
- }
5 | q/ a& g: y2 H( V# W7 f% a# Y - }
$ o9 R$ j5 e9 k- N6 O9 n - if (writeparam(mac, stbid) == 0) . }) s) e0 \/ L# ?5 ^% Q k
- printf("Parameters changed.\n");
8 T [. k" |4 [7 C* d - # l2 C( g: B# O# r9 Y
- return 0;
2 S4 ^! v: |* q - }
复制代码 |