本帖最后由 0522 于 2012-3-21 23:04 编辑
1 _! n1 |* Q3 a2 e0 o) u
" h% P4 e3 a2 a( V, ^* ~修改的代码早有了。到今天不会编译。
& C) ]% ~& j$ B, |) T$ s需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>* c5 U5 {% g9 V
- #include <malloc.h>9 n# X; ?2 F, A2 {
- #include <sys/types.h>8 D- j* |2 L4 b& ~8 e8 J1 ~
- #include <sys/stat.h>
& F: g5 _. J$ l* ?, C) l - #include <sys/ioctl.h>% Q! w$ x; T3 n. R
- #include <stdio.h>/ {; r* c2 \- A3 R/ t
- #include <string.h>( r3 Q# Z/ e1 F% B
- 6 L6 m& x) h# O: ?" k$ k* m
- typedef struct {. ]6 n8 r( B% K5 ?/ j% T$ W, `9 G
- unsigned int e2prom_cmd_sub_addr;7 W' d Z8 S& v1 O# [$ V- P/ p' e
- unsigned int sub_addr_count;! a* H5 J5 L* C
- unsigned char* e2prom_cmd_data;
7 w1 ]; O2 s/ j; C: T) i - unsigned int data_count;
0 X c. W" [6 T. C) I7 v3 {' l - } e2prom_s_cmd;/ O& y* v' ~" B% y# P
, _% Q2 U: m+ X2 i4 _7 p- #define E2PROM_CMD_READ 1
$ c. O) S! k+ ^ z, H - #define E2PROM_CMD_WRITE 2
7 V/ U5 E8 K6 R. g) M# w7 { - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16". e+ h) b% z# F, H+ }/ Z( o2 X8 g% n
- j1 c4 c; O9 z! x: d8 H- static int readparam(unsigned char *mac, unsigned char *stbid)
/ ~) ?6 X$ x0 u - {2 w O+ @, n% |' t
- int fd, ret;
& p5 U$ U# E5 h8 c - e2prom_s_cmd arg;
/ N* A Q- M; ?$ M - unsigned char buf[0x18];
6 Q G3 x" j9 ] - / l+ g" h, k% u' }* y9 L9 N
- fd = open(E2PROM_DEVICE, O_RDWR);
/ P9 I3 v R2 J( o1 J2 c/ e+ a - if (fd < 0) {$ N$ H: r8 i! b/ o) S6 `
- printf("Device %s open error.\n", E2PROM_DEVICE); N) H% _3 R0 V5 z* G
- return -1;
2 q5 f; X( z9 R' x, k% h5 ?1 E - }
* C5 E$ E& N* d* |# I - arg.sub_addr_count = 2;3 I# W& N( Z' Q8 S( j
- arg.data_count = 0x18;" z- u' R" b5 X* e8 \
- arg.e2prom_cmd_sub_addr = 0x290;" Z$ R1 v3 C- x! j
- arg.e2prom_cmd_data = buf;7 j5 z6 ]/ ~: U4 \/ z
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
# ^9 t1 \# B; A5 T - if (ret != 0) {
* _/ p, L0 x8 i - printf("Device %s read error.\n", E2PROM_DEVICE);1 w0 S# n% ~. t( q% S4 F
- return -1;7 D( t9 {& T% |, g
- }# @, v5 }; y7 A% j
- memcpy(mac, buf, 6);
; k5 t% Y/ H2 d8 p3 z g7 D* J - memcpy(stbid, &buf[6], 18);
& i; D& z3 F% ^7 { - stbid[18] = '\0';
# z6 G8 o$ g9 E - " l- V/ D4 g$ h- l
- return 0;+ `5 B) @. l0 J
- }
7 u1 G9 h( _: [+ P6 C) r
: i1 j. Q4 r# V9 h5 P5 J- static int writeparam(unsigned char *mac, unsigned char *stbid) }. g! o2 B# I& O
- {
7 O$ C( ^2 I6 ]5 F9 V( ]- M9 o n( d - int fd, ret;
7 a8 B, B1 J7 W- L; S - e2prom_s_cmd arg;
8 l) C* G* ^+ K7 u* T, O. w( k; ] - unsigned char buf[0x18];
' _9 f {, }" B) D6 ~
$ _0 G: }# B! B7 x- memcpy(buf, mac, 6);
" x0 j- h [7 J# _+ U8 ?# c, V9 \ - memcpy(&buf[6], stbid, 18);
5 ?7 ^% w3 ^& ]) y' J - fd = open(E2PROM_DEVICE, O_RDWR);
. I* \5 _2 ~0 S/ g - if (fd < 0) {
$ K* ~% Z1 F* z3 }. B - printf("Device %s open error.\n", E2PROM_DEVICE);
3 d5 R8 T- s' @& c4 _0 B; g - return -1;0 R& [: M) j# G% L1 X7 j
- }
4 |( E& v4 _% g% }$ X, Z - arg.sub_addr_count = 2;
5 e3 S K, M: d - arg.data_count = 0x18;
/ I1 a* w2 |' O- h - arg.e2prom_cmd_sub_addr = 0x290;
5 x! R# C) `2 f8 s6 {: x! K - arg.e2prom_cmd_data = buf;
" I3 o9 @- }4 L; i0 X" I - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);' ~8 W8 V7 n9 n6 M7 _, ~ i& Q
- if (ret != 0) {
( l, p1 X! \* N, h( V - printf("Device %s write error.\n", E2PROM_DEVICE);$ D6 H0 A" h$ U3 Y, `
- return -1;" P0 I J2 ]- A. u, q: H7 a
- }8 S' Y; j/ K8 @- N% b. i; S' W! R% r
- 2 _9 B2 n9 q% D3 n3 r V
- return 0;
! m' c& R' j1 v4 L5 Q - }+ o( u9 \) r% X z+ H& s
& R: L/ u) u o& \/ Q* z- int main()9 r5 q9 l% i/ E7 P3 _" J, z- U
- {
; N/ O1 c0 N g& w! k" |; p( ` - char c;
) C" K# O0 K4 f3 |8 P5 I - int i, macs[6];+ ?8 m# S6 N- c3 C! h
- unsigned char mac[6];
% x9 w0 U% z/ s, A! b- g - unsigned char stbid[256];! k* v2 p; F: T) U* P
: V6 q. M; \* m! k' }; T3 \- if (readparam(mac, stbid) < 0); C) D8 D2 _1 a1 ^! u9 a" d5 z
- return 1;
- n6 @' j) X6 g2 Z& M- I - 6 T3 D: c0 A/ h
- printf("Current parameters: \n");" |! t9 T. }- b0 `4 L$ i6 p& x
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
( r; H* y( E" c2 X# b, H( e - printf(" STBID: %s\n", stbid);9 K+ _/ A4 A/ t% G# |
-
8 E" x9 @. l2 H6 Y0 H. K - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");( c) X5 r4 Z5 {" m
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {2 {; f9 O! D$ a3 c4 t+ Z
- printf("Input MAC error\n");
* Z" |* x) [/ h/ ?0 r - return 1;
' a2 R( T0 Z" w" B7 G; x3 E - }3 m0 y$ p0 n9 x
- for (i=0; i<6; i++)mac[i] = macs[i];8 `8 `' w) u- ?; I" z5 `
- printf("\nPlease input new STBID: ");* I$ _. s& S" S g
- scanf("%s", stbid);
# M% S% \9 e ~1 M5 z - if (strlen(stbid) != 18) {3 H- R9 m q. V$ n$ J& J. S6 S; W& [
- printf("Invalid stbid\n");
7 q7 Z: c2 t, E4 s }: j* s* R' M - return 1;
: R& W2 f. N4 s - }
8 ]: z- O4 D0 z5 l( I) f5 ~% ? - printf("\nNew parameters: \n");
* b v3 O8 L1 s& F5 z! j - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
: A' Z( ]+ U3 k2 L% |4 V N - printf(" STBID: %s\n", stbid);
9 s9 y- v( N- x
4 K8 y9 g w! f, j" f5 f- printf("\nDo you want to change paramemters? (y/N) ");
# l- z: E+ T( A/ O4 s - for (;;) {
5 @$ }' p3 L9 F1 F7 @( Z$ U - c = getchar();$ c) ]4 d; e0 R
- if (c == 'y' || c == 'Y')7 W E' @! X {5 e! z1 e* g' G
- break;8 Q6 R! O' ~% Z5 y
- if (c == 'n' || c == 'N') {, F# _9 D2 r/ b; D
- printf("\nAborted.\n");& l" g7 x& K/ n/ d2 ~5 C3 R% ~9 \
- return 1;
( p0 ?; h1 u5 Z. g - }
1 R* z1 z z+ D; t, b' U- }) T - }
( Y. B& [8 d7 [9 [. `! V - if (writeparam(mac, stbid) == 0)
0 B" y. o; p" E/ Q9 H( J, \/ R& W - printf("Parameters changed.\n");
! x/ t& o7 N# E( W0 y* ]5 l
9 `6 ]7 ?. j- Z" ] L) Y- return 0;; t0 K8 I$ s% k; U+ t/ \) Y
- }
复制代码 |