本帖最后由 0522 于 2012-3-21 23:04 编辑 5 n" [3 f: [- H( i8 A6 V
+ w! z& y. ^; Z" u5 y2 Y修改的代码早有了。到今天不会编译。
t" b# A% ^; B1 {* G0 y2 G/ |/ }需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>* G9 X+ ]) E2 V" h
- #include <malloc.h>- q" X. P( R( v( T8 ~5 m
- #include <sys/types.h> t. H# [: ~, [' s+ l
- #include <sys/stat.h>; E2 [( a1 h) h5 H* e' q# U0 M1 ^
- #include <sys/ioctl.h>
/ y% R$ I Y( k4 {4 m/ e H6 ~ - #include <stdio.h>
1 ?- C* P# M9 l - #include <string.h>( v: l' t8 X7 u$ l# S% F
- # I9 s- m9 Q/ u
- typedef struct {; v9 h3 h# k' m7 s$ _ p! w4 p
- unsigned int e2prom_cmd_sub_addr;
+ Z0 p3 w/ Q0 @ - unsigned int sub_addr_count;& r( D6 s9 y, z7 Y0 U! P# P
- unsigned char* e2prom_cmd_data;/ F) E; ` p4 v, g* y
- unsigned int data_count;% k& P8 z/ V; O' h. q0 A) a
- } e2prom_s_cmd;
' p# L5 ^$ X) ?/ ~
1 K6 o. M! |7 e5 l2 W5 l- #define E2PROM_CMD_READ 1
+ G5 N$ w) S& c9 w) U4 J - #define E2PROM_CMD_WRITE 2+ T$ R8 P% D& O6 ?8 O
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
, I' R! X) q, T/ u# h9 N
8 e% S! |- `/ k- static int readparam(unsigned char *mac, unsigned char *stbid)! s" {! z2 N: l$ h2 L# q9 s
- {
) ?- U6 K5 n/ i* O - int fd, ret;
/ }* w5 J) w. Q7 a - e2prom_s_cmd arg;6 T9 h/ P' s7 v
- unsigned char buf[0x18];( X! c, N* G1 l% y: A$ S3 w
9 ^8 D9 _0 t& \- fd = open(E2PROM_DEVICE, O_RDWR);
: `3 w1 M3 B. Q% H A - if (fd < 0) {
/ V2 f- h, d% c0 p) |+ }: [' q O - printf("Device %s open error.\n", E2PROM_DEVICE);
8 Z' Y6 O+ U* A$ t/ w# l - return -1;" y- V* z7 Q# E# T3 h" w
- }( Q5 j0 T2 w' }* n/ V
- arg.sub_addr_count = 2;
* G1 V: d% p4 t: t - arg.data_count = 0x18;/ O* [3 S- p2 `$ s ]
- arg.e2prom_cmd_sub_addr = 0x290;
& p" G) i( j9 q5 P( d1 s# X! r - arg.e2prom_cmd_data = buf;
V+ h A( C% R3 h0 q - ret = ioctl(fd, E2PROM_CMD_READ, &arg);0 m- Y7 O. ?8 A0 \4 L1 s" t# |
- if (ret != 0) {4 \5 v1 f8 G, I
- printf("Device %s read error.\n", E2PROM_DEVICE);9 B6 y+ [2 n. q, M9 B# m) m+ w7 @0 G' n
- return -1;5 r& P; ? h& g' W7 F/ v
- }. G9 D; ^% `# |! E" S
- memcpy(mac, buf, 6);
0 W/ F5 ~ d4 Y9 o - memcpy(stbid, &buf[6], 18);
0 v' o* C6 i1 T: R, q0 E - stbid[18] = '\0';
$ Z0 ^* m) I9 j - 6 k& R' f1 a' n7 ^1 n0 ~: P1 z( n
- return 0;
9 U- z z; g: v% C$ x* l - }- P v1 ^, R+ f2 g' M# y. C: V
- / Z5 r, Q# t1 j7 i0 [* A
- static int writeparam(unsigned char *mac, unsigned char *stbid)
: N! u" ?1 z# C- w! I4 \! a - {
: ?1 M9 J' w' L& V$ ~% s - int fd, ret;5 N' V3 u* n, S! l( y# r
- e2prom_s_cmd arg;8 s( Z& R7 r3 I+ |0 [
- unsigned char buf[0x18];
- j; E. [6 D4 n, a
( ]* ] s: ~0 N- c( i7 J4 @. u- memcpy(buf, mac, 6);
9 X3 V- R H. Z6 V: X$ A5 M - memcpy(&buf[6], stbid, 18);% j/ w+ n* S: F6 k2 Y
- fd = open(E2PROM_DEVICE, O_RDWR);
% l9 c$ F9 I8 q+ Q& d7 | - if (fd < 0) {7 Y8 x2 M* M* m5 e: x B; O
- printf("Device %s open error.\n", E2PROM_DEVICE);
1 L1 n$ H' t/ Q6 s6 v5 M! b1 ` N/ d - return -1;
- T( K/ P6 O; {" ]1 C$ ?( V - }
' |, \9 c' }4 E) a. C: G - arg.sub_addr_count = 2;
7 h( v6 ^! ^' A& n( s) S% T - arg.data_count = 0x18;
$ I1 m( M+ `2 X/ E - arg.e2prom_cmd_sub_addr = 0x290;9 P6 j9 m0 X8 `, w4 [0 C
- arg.e2prom_cmd_data = buf;
4 T; c3 w: u6 t3 g% x - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
5 U# l- J! m" F! d) _ - if (ret != 0) {
1 @1 B' U0 I6 o% t, T# J - printf("Device %s write error.\n", E2PROM_DEVICE);
6 b- h/ v$ s) k: v0 x - return -1;
1 A8 L$ ~7 b p0 ?' A - }
4 l5 K) T3 v) x) m
! r$ X8 D% z7 x6 E9 B, ?6 N- return 0;2 A# X% X2 _: u- W3 E
- }
. F' F, E# J) Y, R% X# I
4 F2 k5 U* L- r, s- int main()( T6 B5 ~6 k3 d4 x4 h. S0 e; s$ _0 i/ n
- {# F8 S; f2 O0 ^4 @# m
- char c;
7 A) V! v( s! F- _( m - int i, macs[6];5 s' ]' F6 V" V8 W' [! u! v
- unsigned char mac[6];6 C4 A4 D6 W; X
- unsigned char stbid[256];( J8 d( u8 H0 p& N$ W. V/ N* x
- 6 i! n" W- q% U- u% T9 X
- if (readparam(mac, stbid) < 0)4 J- B1 n5 h& ^/ o* ]
- return 1;
! I/ {; N. r7 l) B$ {! P
# l9 q! O& A9 F W2 q- printf("Current parameters: \n");+ D! n9 V, c4 y8 v5 {$ Y
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);( s5 O: C+ M$ \9 p1 w; R
- printf(" STBID: %s\n", stbid);
Q* ]# n+ ?9 ?4 @ - 4 w6 ]! b% k' j( `, B
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
# ?& R! u0 V8 y1 f+ N - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
! |6 n: k! i( Q# a. }3 v8 t - printf("Input MAC error\n");
" r/ X; `0 J! ^1 k* u& P, e - return 1;
~9 O3 t6 k6 f# U9 Z B8 D) Y - }8 H+ L8 Q8 e- j3 H ~1 K& S
- for (i=0; i<6; i++)mac[i] = macs[i];2 X: l) l( w9 l
- printf("\nPlease input new STBID: ");: r" K" k. C( A
- scanf("%s", stbid);
) O8 R( S$ c, r9 W - if (strlen(stbid) != 18) {
. V ~7 N# l/ h+ I - printf("Invalid stbid\n");
, N8 o i5 E8 x: ] - return 1;+ G& ~6 B8 q) d' u7 C
- }
# r5 o, a( z3 q( m7 l - printf("\nNew parameters: \n");
2 x4 T6 X2 s& Z/ V - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);' m: a! @7 T- j/ O2 a$ Y7 |
- printf(" STBID: %s\n", stbid);& D! X( q9 ]; ?5 [4 Z
- ' w* C- M; a6 ]* _% h5 B7 z
- printf("\nDo you want to change paramemters? (y/N) ");% L% e s# W9 G7 n; U, W+ Y4 L
- for (;;) {
* T9 G5 R4 E8 C6 x x) M' V - c = getchar();
, r! ~& x- _: M. s - if (c == 'y' || c == 'Y')+ Y$ x! ^5 {4 S& M+ X4 i& B, h
- break;/ L' i' V, g! p7 x y+ k* f
- if (c == 'n' || c == 'N') {; T6 H4 A( u# i- }7 ^- s( h- D0 I
- printf("\nAborted.\n"); e. I. S! y( R0 T8 ?2 @
- return 1;
) I( T9 e" m' d: y8 d$ [/ |8 I - }
2 C1 N; e% w& H8 v( n - }1 d8 z% `8 a) u* Y
- if (writeparam(mac, stbid) == 0) & {- m# K8 J4 L6 q1 p
- printf("Parameters changed.\n");5 L0 k: X& g# S* u+ \9 I* v3 G
- 4 `9 m3 |9 s2 N9 I4 ?! ~
- return 0;0 [& C6 l* k: N- d7 L4 @
- }
复制代码 |