本帖最后由 0522 于 2012-3-21 23:04 编辑 ) a3 Q% l; X' ]) l; Y( r) w
% [# U$ Z4 q$ G5 R' r5 M9 ~修改的代码早有了。到今天不会编译。
5 A5 [8 t8 K+ B& B% T6 p需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
( |) c# v4 h7 g) C; V4 p( I3 [1 C - #include <malloc.h>. N- ]" T- j. l, t4 y/ M |
- #include <sys/types.h>5 D, d/ z# f' X5 ]" n
- #include <sys/stat.h>4 g2 q- C5 |3 U- q
- #include <sys/ioctl.h>
6 U( S* ]+ d/ [. R - #include <stdio.h>- c, e' ]4 d' a3 _
- #include <string.h>. y; X Q- F* d; P0 b
" ^; d U2 l j7 m3 e. t N- typedef struct {8 d! b8 P1 G$ }8 Z" r" R1 \- q
- unsigned int e2prom_cmd_sub_addr;
" b9 ^( a1 z5 Y; X, H! N" m0 s - unsigned int sub_addr_count;( O& \0 w, J9 r% ~; P+ }+ c
- unsigned char* e2prom_cmd_data;; }2 R! [7 i: R3 S8 ?" \, d
- unsigned int data_count;9 \9 m7 i7 E1 M
- } e2prom_s_cmd;# _' e% y+ ?: _* D4 Q* m
- $ \0 K0 f% ~1 ^1 r2 m/ R' `
- #define E2PROM_CMD_READ 1
5 x4 Z) e5 C7 P8 K. p) {4 i - #define E2PROM_CMD_WRITE 2+ {; K: G; |- |$ Y, m+ n) M
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"6 U, m9 `1 p e2 n2 j
]. c+ w7 @. L d/ F- static int readparam(unsigned char *mac, unsigned char *stbid)1 M* f( g$ ?9 l
- {
% r+ p9 s3 ^8 ^% [* h' S - int fd, ret;
. U, I4 ^( S E' i - e2prom_s_cmd arg;
4 C8 d* y6 B* N: k - unsigned char buf[0x18];
* B% e: ` P b" [" C5 R6 D
8 Y/ O3 z1 X6 e. r) q- q# Y! v8 F- p- fd = open(E2PROM_DEVICE, O_RDWR);. Y( v: u: C9 Q& k# f4 ]9 Y0 C
- if (fd < 0) {
% T7 K" T2 R6 a - printf("Device %s open error.\n", E2PROM_DEVICE);8 n) z$ W& h+ X9 c2 c
- return -1;
3 S2 n5 H \% d% H# K( f0 q) ] - }, d$ A* W7 ^" E
- arg.sub_addr_count = 2;
1 C7 a2 ~% y; X- `: r' m) o- N7 X - arg.data_count = 0x18;
( q( P$ H7 Z5 z: x* f8 |% V - arg.e2prom_cmd_sub_addr = 0x290;' W% z/ E1 U8 P; z/ V0 t4 y
- arg.e2prom_cmd_data = buf;: s. n( K8 m2 Z/ o) }5 v
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);2 m, m. ?) q* A! o; r s% U
- if (ret != 0) {! K9 C2 b* Q, Q* f0 A( w' ~8 K
- printf("Device %s read error.\n", E2PROM_DEVICE);0 j2 W# v7 u6 v5 @/ s- t
- return -1; d9 x. ~* N( G# I- M( M3 H
- }
' \7 R9 D2 T) E - memcpy(mac, buf, 6);
. I; O' O: z% o* H; u. N8 D - memcpy(stbid, &buf[6], 18);
6 G3 H8 v( N f X' e; [# [ e - stbid[18] = '\0';/ C# C" z8 o0 b, K8 P! R
J G+ A/ J6 U% v- o6 `8 m. K- return 0;7 W7 m. M% G/ @: m' c
- }- {1 j; x0 ~7 l/ L& C# J
% l+ T2 u1 L9 [1 p* d$ Y- static int writeparam(unsigned char *mac, unsigned char *stbid)
# z" a. Y3 ]' K1 S5 r8 w+ g - {) D9 P5 ?8 b/ j& E6 L# Q% m* _
- int fd, ret;3 G1 q7 s g; S/ X! `% \, Q
- e2prom_s_cmd arg;0 j$ I( m/ t( G( Y$ N# R2 p$ B
- unsigned char buf[0x18];$ x& \& g0 A* H9 e( x3 j w* r3 \
- ; l: |, y& D2 W
- memcpy(buf, mac, 6);% u9 t% _7 g" @5 B5 ^7 _8 L
- memcpy(&buf[6], stbid, 18);
6 Z ^( P- M2 {; _# c - fd = open(E2PROM_DEVICE, O_RDWR);
# {+ }6 Z$ S6 c h0 V - if (fd < 0) {0 | x) l5 C( }) x
- printf("Device %s open error.\n", E2PROM_DEVICE);
4 e9 ~& c. j. N7 I: _" ]" }: ?" m - return -1;/ x! t$ |9 b! H P2 b* k9 R: f- w
- }
( h. [ B1 r# g6 d& S - arg.sub_addr_count = 2;
/ |" G$ ?5 D9 K% O - arg.data_count = 0x18; X+ A% I, U4 |0 N1 t" v
- arg.e2prom_cmd_sub_addr = 0x290;
4 C- E9 k* H. P - arg.e2prom_cmd_data = buf;
3 e5 W S9 o) C6 X& q - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);" `% \' J7 o# ^' I
- if (ret != 0) {
& S; c0 u; O- d. p+ O, y - printf("Device %s write error.\n", E2PROM_DEVICE);% Q) q+ N3 l4 F+ p; Y
- return -1;
# \4 H* O7 [# X4 K- @" e - }
; R$ l+ h" N1 V: |- k - & \. i: O1 O' n9 d& j, l$ E
- return 0;, K9 }* X) D+ n
- }
' T9 Q; O7 S( V. E - . l( H2 W- R% L G
- int main()
. X/ }+ L8 x; m$ U. v6 Y - {
/ V' ^- W2 h0 Z6 g7 P& w( X - char c;
z; S2 r# m8 U3 m - int i, macs[6];
$ I% G' A' U3 a% O' Y; t - unsigned char mac[6];8 X# r1 t! o/ h$ N/ a4 Z+ E; Z) @3 T( C
- unsigned char stbid[256];
r; Y7 E2 k* k' K( z, [! K u
0 \+ f! H0 F: M/ o7 i, d' Q- if (readparam(mac, stbid) < 0)
+ b6 \) _, G6 G3 l9 x/ f# ~ - return 1;
1 y: b D3 N% |3 R- a - - X1 A0 u0 Q# S; x
- printf("Current parameters: \n");
% K$ S) ?& @( {4 q* v - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
W* F5 L' v& ` - printf(" STBID: %s\n", stbid);
/ j ~2 M/ d' d - " I7 ~' K" \+ o6 r. B0 J" f
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");3 u1 u) t# a- E1 K
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {2 I/ l! G( W) n' E, c5 ]
- printf("Input MAC error\n");! W) J* Y* D1 k; O4 ^, D& Q1 J" H2 A
- return 1;9 P' d* o: ? x8 m. d$ ] H0 _
- }. C. o) B1 ?, k
- for (i=0; i<6; i++)mac[i] = macs[i];
! h1 D1 b% u$ E2 ?+ ~ |* i - printf("\nPlease input new STBID: ");
2 a/ b$ E# A* ]& k4 y - scanf("%s", stbid);
- T+ |, e4 S4 @+ E* n - if (strlen(stbid) != 18) {9 ^# a' n3 ~, l
- printf("Invalid stbid\n");' v+ t/ k! k$ ~
- return 1;
) R4 m g# |: u+ x9 I3 m0 j4 S - }
3 I2 R s9 N2 R! B - printf("\nNew parameters: \n");, z& F9 U8 }4 F! R1 F
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
# K W' ]0 V; Q* u- h - printf(" STBID: %s\n", stbid);# G5 p* {) u6 [1 t) S$ Q
/ F4 G) X/ i5 _" A6 m( `- printf("\nDo you want to change paramemters? (y/N) ");
4 X" M `2 N7 |/ V* X! T) ]$ e - for (;;) {
7 \% K/ W! S W. M0 \ - c = getchar();
( q; }# P% m7 h0 T9 I+ q& L - if (c == 'y' || c == 'Y')
7 U2 _& M2 |# q. H9 N - break;
; b4 B/ P: F; c; E, t9 N( ^ - if (c == 'n' || c == 'N') {
6 _8 ]4 ^0 x! d/ r c: J - printf("\nAborted.\n");
; E9 J0 C$ x3 z- ^3 Z - return 1;
% z4 U+ q. r: ?- X A' S - }
$ r4 w* w1 U9 Z) ~- [8 k, G: _ - }
# D" o8 v3 b2 h: Q8 ?5 | c - if (writeparam(mac, stbid) == 0)
. M8 U# ?8 y4 M6 h% N/ W( S - printf("Parameters changed.\n");7 L* r' H& Q% i
- 1 L! X) p. f4 ?8 ^5 r
- return 0;
( x6 O8 n) _' S; `6 J, v$ M - }
复制代码 |