本帖最后由 0522 于 2012-3-21 23:04 编辑 ; @, o, N6 O3 r$ U, i; ^% A6 P: S
0 M8 s$ i# {* @2 W6 P. A- X修改的代码早有了。到今天不会编译。
n4 Z) V/ B& E+ P需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>* b2 i& H' X# F C2 N
- #include <malloc.h>& T" o% b$ D8 A
- #include <sys/types.h>
" ^- g5 l7 _( |3 p4 n7 E - #include <sys/stat.h>
( `& S; S. P, t' M3 \ - #include <sys/ioctl.h>0 }$ i1 H0 T2 c" f& G- \$ ^# K: G
- #include <stdio.h>- v0 J; [$ a& V. p7 Q+ l
- #include <string.h>
, \1 x- T) \6 x# g: s/ p% v# }
# n2 N8 F& d* T5 p5 i2 U- typedef struct {/ X- x- N. v5 T; R7 c& X
- unsigned int e2prom_cmd_sub_addr;
4 x. f1 `, N3 c) U& z - unsigned int sub_addr_count;
$ P( ~. d7 O6 q6 L - unsigned char* e2prom_cmd_data;; q/ Z) [' c! l5 ?
- unsigned int data_count;. |+ I) q( e) a/ K
- } e2prom_s_cmd;
5 \/ b8 D5 t6 E/ \; L9 y3 ^: e - j' W8 S( ~1 j; i+ F3 O# g
- #define E2PROM_CMD_READ 1
9 `" K2 `+ q' r* \; g' h6 W - #define E2PROM_CMD_WRITE 2
2 R8 d$ T2 G, [: N L0 ~8 r- } - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"$ ]6 M: M( M+ E# ]5 Y* c0 X
9 Q; V* j" N! P0 x- static int readparam(unsigned char *mac, unsigned char *stbid)6 ^$ i/ I; T: I4 w6 `4 f+ P
- {& f6 X6 q) q8 Q- L
- int fd, ret;1 C6 t2 J y* C" {( G4 ~: _
- e2prom_s_cmd arg;
! s! g `* @0 d. h( N- _ - unsigned char buf[0x18];$ }; W7 r9 g4 O0 k+ G- E) U% K
# ?1 ]7 ^" g$ g# v5 x& D1 s- B0 B- fd = open(E2PROM_DEVICE, O_RDWR);! {/ n2 G5 Z1 W3 ~
- if (fd < 0) {+ m! \: D$ X3 A5 ^8 \
- printf("Device %s open error.\n", E2PROM_DEVICE);$ W, W ~) O& f2 ]1 Y/ _7 l
- return -1;
6 t% f4 | `, w; O6 }8 Z - }
" s' K( D o- k* \$ J - arg.sub_addr_count = 2;
2 Z6 O" M; S+ O8 T& _, r+ _6 v) M - arg.data_count = 0x18;5 q h% U% h5 L( l" x& B+ u
- arg.e2prom_cmd_sub_addr = 0x290;- U5 [! ]2 V6 {" K( K
- arg.e2prom_cmd_data = buf;
7 f3 F. m4 y% L3 c - ret = ioctl(fd, E2PROM_CMD_READ, &arg);4 ~6 }3 A8 B( j. ?: N
- if (ret != 0) {! X# i2 E% o/ |: w% p- k
- printf("Device %s read error.\n", E2PROM_DEVICE);1 h( E* W" U: ^( N( m
- return -1;
C- `3 k3 F( e4 M, w* j$ t - }
/ G7 Z6 K8 q) F* V6 | - memcpy(mac, buf, 6);
. E0 ^6 R$ r1 p# n7 V - memcpy(stbid, &buf[6], 18);1 ]% j3 t7 B. a- S* f* i. b
- stbid[18] = '\0';
& K% S' U4 O4 w* l2 Q - 0 {% R Z" W, W4 X' m% g
- return 0;
5 s* u6 {7 C, x. z0 _" u+ B8 y - }1 Z4 x3 ~7 ?, R8 b
- + `1 G4 p( v* D: ~
- static int writeparam(unsigned char *mac, unsigned char *stbid)6 n3 p* o( n* y; x6 G
- {- W, B% x3 s+ `
- int fd, ret;1 M" D2 \1 b6 [0 Y
- e2prom_s_cmd arg;
0 |2 E9 y V& h& O2 m$ ?2 O - unsigned char buf[0x18];
: r( r( y4 r- R
4 w1 g; Q' n% v- memcpy(buf, mac, 6);& N$ j3 F2 U y2 v8 n! [
- memcpy(&buf[6], stbid, 18);" [5 h* \4 K' T9 l9 U' f
- fd = open(E2PROM_DEVICE, O_RDWR);
+ M s) O0 i# m5 t6 A9 m% k5 k - if (fd < 0) {7 G8 E* _' j. J
- printf("Device %s open error.\n", E2PROM_DEVICE);
0 N4 b8 n: T5 k7 ?& p - return -1;
j% P. ?) _( | - }
, U" a) G; e9 p% s; X$ L ~ - arg.sub_addr_count = 2;
5 P: n% b& Y J - arg.data_count = 0x18;
" y3 {8 Z7 S: T" ~ - arg.e2prom_cmd_sub_addr = 0x290;
) o. O$ `* r% ]$ A& O" o - arg.e2prom_cmd_data = buf;$ W8 w% L: T n1 W9 X0 j
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);/ `- t; R, e. O# S3 |$ f
- if (ret != 0) {) \! t5 w9 K! Z0 ?, o. S2 q, r$ [3 K
- printf("Device %s write error.\n", E2PROM_DEVICE);
0 z5 K; q& d3 t; _+ W - return -1;6 p& T) B4 k: L* n; }) h+ F2 H
- }' E) I/ U7 s- @1 L/ I
- % w; X% Y# T0 M3 {4 k- l, u
- return 0;# Q4 q, v2 x) X4 A6 k9 M
- }
- b- u$ P: b4 V* Z% d: S# |: y% j
4 O) Q' V) m" ]" E- int main()
; a: \7 b. H, z - {
7 @) Q3 K. w+ m8 o% {. B$ v - char c;
! s. p8 h% }" l% l - int i, macs[6];
" m7 e8 o8 m/ ?& @ - unsigned char mac[6];
- o% d7 T$ z2 H2 Z/ E% | - unsigned char stbid[256];' e3 e5 f7 S8 l+ n# [: ?$ B! w
, d( R7 w8 [% K6 L1 _( S- if (readparam(mac, stbid) < 0)& J3 ^( Q; ]2 R
- return 1;+ P" a+ O0 P) j; g n: B3 s
- ) Z8 d! G0 Y2 o# a
- printf("Current parameters: \n");5 e0 v; @. F T' Y4 J& Y5 o
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
% p2 r u2 G& L - printf(" STBID: %s\n", stbid);
" b) @2 x0 l4 a* j -
* S- q& Z) H2 H8 w' p$ X - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
9 y" M& t6 D; Y, p2 Z - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {* ^5 Q0 k# I7 h- g2 }& Y8 O& c
- printf("Input MAC error\n");% | p4 ~: S4 h8 V3 D. M$ v. ]
- return 1;3 V7 Q1 r3 H1 [( `9 u
- }6 Q1 @0 k( }5 F% H$ M
- for (i=0; i<6; i++)mac[i] = macs[i]; d7 F& [0 u& g- C, w
- printf("\nPlease input new STBID: ");
, c: A U0 U7 c7 z% S4 M - scanf("%s", stbid);( q) p/ b1 _6 b" s
- if (strlen(stbid) != 18) {
1 ?4 D( D6 P. d - printf("Invalid stbid\n");
2 g8 T! F* t5 _2 V! t& d' |9 C - return 1;/ }, m+ T6 @% a. X: ]
- }
5 H. {. V7 C& R - printf("\nNew parameters: \n");
6 G) v1 g: s! L; L. @4 H1 n, v - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
( o j5 N5 J! M2 e. v- n - printf(" STBID: %s\n", stbid);1 R. o7 q7 m4 B% k$ A
# b) s# D4 {( _8 U4 P! |' Z4 p- printf("\nDo you want to change paramemters? (y/N) ");
9 D8 T9 G+ R; c' T# E: a; m. f3 [' f - for (;;) {8 }- _& n2 b, h
- c = getchar();5 a4 Q& l; F( \ I# t
- if (c == 'y' || c == 'Y')% H5 H5 j) t- [/ `% j
- break;+ O! y U9 o7 m" @3 _0 p9 B. X/ O
- if (c == 'n' || c == 'N') {
' ]4 @* Z* @9 P- e6 h/ ~ X/ t) M - printf("\nAborted.\n");
9 R% W6 g' |1 r, N C8 l2 u) [ - return 1;
8 Y ?0 j8 A& u* K7 U- {4 ?8 D - }
- V+ n; x* Z( g" @) R/ M+ S - }$ o4 I4 M4 r9 q ]7 \
- if (writeparam(mac, stbid) == 0)
8 j% X& F: t5 @ y" S - printf("Parameters changed.\n");) r% G, O, a" U) f' s# {
- ) q; D0 [4 n! w: Y
- return 0;
7 T8 g& \+ J8 o. {: y - }
复制代码 |