本帖最后由 0522 于 2012-3-21 23:04 编辑 * x1 C: N* E2 S' |8 f
( J/ g. i9 w4 P& A修改的代码早有了。到今天不会编译。& i1 a& K2 z5 K; I: g
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
' v; U2 K6 D; v2 ~% x! M - #include <malloc.h>0 d2 S2 a. C; c- Q ^
- #include <sys/types.h>
/ d& c6 ?% u% v8 V - #include <sys/stat.h>
: g, A4 J5 z3 N+ A b - #include <sys/ioctl.h>
+ D$ c" v2 P9 f1 p - #include <stdio.h>! r2 p5 U$ `, Y/ R$ o1 L
- #include <string.h>
8 h- Z- u: s8 i# {
8 U0 G. S1 N! K' B2 F, }- typedef struct {
5 N8 A7 O5 _$ |) z1 x9 R" ? - unsigned int e2prom_cmd_sub_addr;% z& b% y% m1 r: `& J1 k& Y6 v. h
- unsigned int sub_addr_count;
# i. y! p: T( I - unsigned char* e2prom_cmd_data;
) u( R, K: q0 }0 f2 _ - unsigned int data_count;
. Y0 [% w* ]- p8 R. e - } e2prom_s_cmd;
8 O4 U- c/ b0 ~5 X e$ y& x- p1 u
* x1 f I2 j0 n/ V3 ~! G# v+ {+ j0 C- #define E2PROM_CMD_READ 1
" u3 o8 v* E- n% v2 K - #define E2PROM_CMD_WRITE 24 u9 R6 h. h, B1 x
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
6 m2 ?; F4 Z( O% L
4 q1 {+ r+ v9 j& U; O- static int readparam(unsigned char *mac, unsigned char *stbid)
, j8 u8 E3 p, ?+ q- Y1 u6 V - {$ P8 W3 O% f6 y0 L/ j5 Q
- int fd, ret;0 s! f% s4 |( n( O4 W5 ^
- e2prom_s_cmd arg;
) Y0 F( m, I( Z. B+ o4 Q - unsigned char buf[0x18];5 f3 U) e+ P% j6 ~1 B. [/ w8 }
- : m0 l2 N' L# ~ Z+ q$ M; M
- fd = open(E2PROM_DEVICE, O_RDWR);2 w7 u% L0 m: X" U$ n, ~, T7 I
- if (fd < 0) {
" G, y8 f3 B. y- u$ W - printf("Device %s open error.\n", E2PROM_DEVICE);2 F! h1 w/ d8 N+ o* g( R
- return -1;
, x& S3 V4 x( p& P* f7 Y) @ - }
7 H; |& a$ Q+ M9 b2 G - arg.sub_addr_count = 2;6 p a Z8 k' }6 K
- arg.data_count = 0x18;5 k1 }9 i2 S3 H- o' a, B
- arg.e2prom_cmd_sub_addr = 0x290;6 r; U3 j! X6 @) n8 W0 b) q
- arg.e2prom_cmd_data = buf;5 D- v9 U; p# @/ r
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
5 V9 k: x* g) z, I- B+ L - if (ret != 0) {
. F3 w9 } R' U B2 n* R; u - printf("Device %s read error.\n", E2PROM_DEVICE);1 w7 A( ^; r* B# O
- return -1;
: q" c4 v \& \- G - }5 q, y/ A6 ]+ g1 p) A; S2 H9 S! |" p
- memcpy(mac, buf, 6);) \) h2 z7 D2 W: v5 ~' L' ?
- memcpy(stbid, &buf[6], 18);
0 }, W8 i9 Y* z9 b9 e - stbid[18] = '\0';+ v' q# `+ q: V1 s$ ^/ Y/ m
- 0 D( h/ y1 z7 C9 _
- return 0;0 E' K- G1 R! `* ~
- }3 X6 N# ^, K Y5 o) i
9 s' X+ ^/ U7 Y8 t7 m" A$ Q- static int writeparam(unsigned char *mac, unsigned char *stbid)
" {, g- _ O8 G J5 W4 B0 v - {
/ n3 S0 Y5 s$ K" G) @$ x d- m - int fd, ret;
3 M, t+ w3 r9 X0 S - e2prom_s_cmd arg;; o# }5 V! I0 t# q" K6 ?
- unsigned char buf[0x18];
$ F3 e, |0 U3 u% {4 A, C+ L$ c
8 j7 l; N$ O+ _5 r; X2 ~) ?- memcpy(buf, mac, 6);' M' K |. f: c1 x- Z$ A
- memcpy(&buf[6], stbid, 18);
- O' `- C* ^: @: c - fd = open(E2PROM_DEVICE, O_RDWR);& x# T9 A' a3 K! {
- if (fd < 0) { Q- Y- U1 j" q* y
- printf("Device %s open error.\n", E2PROM_DEVICE);
5 c1 y! B% v( z+ u0 P; m% \: v& X - return -1;
8 k# K I4 ^/ ?: y7 Y - }0 `( D3 b' i' Q! L. f3 ?# w. A
- arg.sub_addr_count = 2;
8 @8 S/ y" h( q% V& u; w - arg.data_count = 0x18;0 q" E) H' f# f, W
- arg.e2prom_cmd_sub_addr = 0x290;
, s8 M: z9 |7 Z0 v8 V' z - arg.e2prom_cmd_data = buf;. |, }. }3 S# D0 \' L2 ?
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);8 G* b8 ^5 j _) q
- if (ret != 0) {
; T" x5 R5 l4 E) i, v% C P - printf("Device %s write error.\n", E2PROM_DEVICE);
8 S5 ~, a3 j! E1 M, h - return -1;* t7 h5 ^8 d8 R) g: C
- }
- m5 Q9 }! r9 m! B2 S t! N
; K& ^# O6 J, w- return 0;
3 ~# E1 {: L2 C" D3 k - }& t# Q# x I+ E3 ]: C
- 8 w# M* Z1 o- d, _
- int main(), A0 a3 S' `) F- j |& A7 L
- {8 |) }- T. Z7 p
- char c;
: q! l/ ~0 }, \2 w - int i, macs[6];
I# l5 G7 Z. E" _ - unsigned char mac[6];
6 }$ b# P7 B8 \' A - unsigned char stbid[256];! p3 Q; c3 Z, U$ l+ q) p) j0 i
; f! _/ P5 n8 T' X9 V8 u" a- if (readparam(mac, stbid) < 0)
$ x8 m8 T3 {' [ - return 1;8 z4 K' T* U" s( g
- : P* X$ y. B( A
- printf("Current parameters: \n");
6 w; V& D o" n - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
: R% A* f1 s7 ?# ]: \ - printf(" STBID: %s\n", stbid);
, g8 N& k) O* A2 G$ w2 v1 O, J( A - ; p' [4 [, p' H+ L' Z7 e
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
. B$ @0 O% @# K- q - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
- U" q& c, [, _; S, ]3 n - printf("Input MAC error\n");
( E9 p- u. `2 ^ - return 1;- M* T3 g8 _7 J2 g6 H r7 A
- }
4 ^3 O) L! n/ B1 i- C/ Y b - for (i=0; i<6; i++)mac[i] = macs[i];( i; y9 t; o7 R; ^# o! }
- printf("\nPlease input new STBID: ");
0 G/ y9 o( n6 Y, n6 g$ l) W - scanf("%s", stbid);, T0 H0 M) `! d) M; |
- if (strlen(stbid) != 18) {
' Y6 U) O2 Q' E) |! ]( j - printf("Invalid stbid\n");
# Q" D8 \7 V- ^3 u) E - return 1;9 l& b* [! q' @) V
- }6 I. O, }+ ]7 s1 M/ t- G5 z$ @+ s
- printf("\nNew parameters: \n");
0 e% b6 `8 T+ M+ C0 L - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
; b1 `& B: X- ?$ E; r7 @ - printf(" STBID: %s\n", stbid);
7 C3 j* ~4 O2 f/ o' ?* C( }! q: { - 8 v1 R$ W1 z1 @$ m* U( G; } r
- printf("\nDo you want to change paramemters? (y/N) ");0 | G: z$ S& U9 J, G
- for (;;) {
4 f* h2 s8 k7 z" ^. T4 U8 K - c = getchar();
& Q2 {) ]0 T K% u1 i, U { - if (c == 'y' || c == 'Y')
7 |2 H, k) x/ V. x* A. M1 u6 ]! f - break;
7 N( Q( S! }3 F2 [( O - if (c == 'n' || c == 'N') {
6 K* F- |7 o5 h* K - printf("\nAborted.\n");3 s4 W6 W) e7 p% X; A& q1 c
- return 1;$ c; ?* F+ d2 }. J3 J+ X& U
- }
! I$ l1 N+ G5 ]/ F - }: M" |3 Z# c. s0 I$ D- y Y
- if (writeparam(mac, stbid) == 0) 3 d' I2 w5 |8 q# c1 p: W
- printf("Parameters changed.\n");
3 c6 o7 ?/ h f& R - 5 p P5 w* d/ j/ T. ~
- return 0;
% G- J' m4 b8 O2 N2 d - }
复制代码 |