本帖最后由 0522 于 2012-3-21 23:04 编辑 ( z8 X; @% R4 P! J
: n! R! O; _; b) a修改的代码早有了。到今天不会编译。
1 _: k* q5 [2 F( z5 u4 `需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>, W( s2 J+ K! r C3 R
- #include <malloc.h>$ b" R2 A( J9 x2 [3 G4 f5 V9 f
- #include <sys/types.h>
/ K7 ~5 G, A) {. P3 c1 [! P - #include <sys/stat.h>
$ [( Y% Y# ^. L8 J1 i l - #include <sys/ioctl.h>' l6 c7 C9 g0 I0 ~
- #include <stdio.h>: z9 W! [4 z% b* i. A
- #include <string.h>4 ~$ l# o9 ]( \* F
0 K& y, s6 A8 I S4 j- typedef struct {
/ J& ?: [3 V6 r1 n - unsigned int e2prom_cmd_sub_addr;1 j7 G1 `# k5 F0 \
- unsigned int sub_addr_count;
! w! Z; K# @2 Y8 u/ W - unsigned char* e2prom_cmd_data;% q+ m, G( P5 }& n, p. ^
- unsigned int data_count;5 v! l+ r, M. @- _# D" s# d
- } e2prom_s_cmd;# w7 o4 j# L2 |* _" `5 A/ D
0 b0 k; ~) e( \- @" v- #define E2PROM_CMD_READ 1& h7 X9 t# {8 H/ x. f- h" J- A; W
- #define E2PROM_CMD_WRITE 2" i2 t" b( x. `
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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( J O0 D2 i& g- t* t- static int readparam(unsigned char *mac, unsigned char *stbid)
- h( x- q9 [+ T6 [, e' ? - {' m5 r( n- {# _* @1 ]7 \
- int fd, ret;! a( y) J w' N' @# E+ h
- e2prom_s_cmd arg;
/ j/ c& F( |3 L' [3 T8 t - unsigned char buf[0x18];( i0 O( P' O0 m. c0 K$ D
1 r7 C- r) K9 ]6 \- fd = open(E2PROM_DEVICE, O_RDWR);
' Y* w% f1 T/ Z8 n$ P; D - if (fd < 0) {
# ^9 R# j6 `& i H& K - printf("Device %s open error.\n", E2PROM_DEVICE);
% R7 ~& T: `( @/ d; Q8 X! K4 V - return -1;
/ s6 R4 p; z: ^$ t( u( E - }
4 m; O1 f% O' T: Z4 e - arg.sub_addr_count = 2;
S/ e! {! q% _/ Z5 f' F - arg.data_count = 0x18;4 D. G, A5 x9 P: q. G: i! q6 ~
- arg.e2prom_cmd_sub_addr = 0x290;8 T9 ?2 S9 ?. ?, i) s' O
- arg.e2prom_cmd_data = buf;
6 {6 m5 J7 i- s: w+ _% \( c" _ - ret = ioctl(fd, E2PROM_CMD_READ, &arg);2 l, t8 S+ ^4 J( G: [8 L# l
- if (ret != 0) {
" l8 P$ s0 H$ U" G - printf("Device %s read error.\n", E2PROM_DEVICE);9 L$ C- e8 B1 E2 Q
- return -1;: K7 [ h& [$ U( p- `4 j
- }4 f/ S! s# R" ^3 u9 |' v& o
- memcpy(mac, buf, 6);
/ {0 v( j. H- R8 ^6 x - memcpy(stbid, &buf[6], 18);2 o- n9 K" ^$ P& `( z# v! d! \
- stbid[18] = '\0';
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- o: ]! w2 F A7 e# k- return 0;" [+ A+ \2 K$ l) c& K: f$ b; t6 u
- }' Y; |+ T- u5 I) X: o5 c/ U, J
- : x% s# h- `, t4 J: b
- static int writeparam(unsigned char *mac, unsigned char *stbid)
! p8 a, o0 Q, m& A& o& n* r - {) v; K: q+ N7 _& P% U1 U4 r7 b
- int fd, ret;; u) T* L/ [6 i- u5 N
- e2prom_s_cmd arg;
/ Q4 E; {' x1 H/ t+ v7 x - unsigned char buf[0x18];
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' U- s) X0 V$ z, `9 Z1 V- D9 u- memcpy(buf, mac, 6);) `9 `, s3 k* `9 U8 C- f
- memcpy(&buf[6], stbid, 18);
" k/ A8 B# z& M9 v4 U4 y - fd = open(E2PROM_DEVICE, O_RDWR);
F/ x9 N3 y5 i9 \2 c* C/ { - if (fd < 0) {
! e0 ^* l( U. u - printf("Device %s open error.\n", E2PROM_DEVICE);
9 }& z" j$ b+ Z: F* d# P4 ^ - return -1;' E5 W: Z) T+ S
- }
* } b" ^: o# n2 V$ F2 ^ - arg.sub_addr_count = 2;( j- o5 w! G2 J+ H
- arg.data_count = 0x18;
+ y- q. _" C: m% a$ R" e - arg.e2prom_cmd_sub_addr = 0x290;
" e+ C, [$ O4 F5 S2 p4 E0 q* ] - arg.e2prom_cmd_data = buf;
; h4 Q6 U8 [ \' U - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);# a$ Q1 J: E* ]! d( a& w
- if (ret != 0) {0 a/ y9 M$ ?" q! Z
- printf("Device %s write error.\n", E2PROM_DEVICE);8 B, k4 `- ?+ m, o( ^% N
- return -1;
4 k9 Y" D9 @. X9 K) h* [ - }
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- return 0; B9 Y4 Y. c- B* o( Q
- }
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; e- I' `; R' o8 U" h- int main()# N ~) ~5 B5 ?- M( F
- {
- o# L9 O4 r: V. _% g A ] - char c;
1 x+ m* ?( o% B1 _ - int i, macs[6];
- B0 _/ E( G. S b, L1 E! o) ` - unsigned char mac[6];
$ i+ M4 `7 X6 U( |% e - unsigned char stbid[256];7 A4 [) E H6 A! v2 ~ W
3 K( r0 Z5 l X4 T; f# e# o: x" X- if (readparam(mac, stbid) < 0)2 I$ k+ M" q9 o5 b A
- return 1;$ D$ ~8 Z w# x- Z, {6 e
3 J$ p- j: _/ f+ Y- printf("Current parameters: \n");
4 O1 f5 ]* e; |" k4 t4 U: ? - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
: ^& S% j8 t( b/ O, S - printf(" STBID: %s\n", stbid);
" a+ @( b; d; m( r% ] - - _5 H/ D: N5 B7 N8 Y; u0 _$ r
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");& H, R+ m. {' T ]! b' s7 |# Y
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
8 i8 m/ y. F3 I [# f, o: [ - printf("Input MAC error\n");
1 ^+ t, a6 h% Q) j* A - return 1;
( H! @8 p1 Y G* {( @/ V - }
! z; h5 v6 w0 [. Q5 }* m: C - for (i=0; i<6; i++)mac[i] = macs[i];
5 u) b5 o: r5 E! p! O& L. D - printf("\nPlease input new STBID: ");) F( U# x7 n" @1 H7 B: |* r
- scanf("%s", stbid);
+ h5 P, W+ w2 q1 {* g0 F - if (strlen(stbid) != 18) {4 B# W& L% d& d7 B' e* ?8 k
- printf("Invalid stbid\n");
. p: n, Y, L- d, c7 D& {* Q - return 1;9 ~2 F% G. Y; F/ `1 b6 d7 `- Z
- } H% ~4 y8 k* o& e* D
- printf("\nNew parameters: \n");
9 R# T+ k; o8 e! k1 k5 l - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);- V' a) Z2 G4 ~0 P- Q
- printf(" STBID: %s\n", stbid);
/ H& Y, [, Z2 X* c3 ^- e
/ ?7 A+ O. D. N" l5 I0 w- printf("\nDo you want to change paramemters? (y/N) ");. P+ Q- [- U* t- d/ I$ L2 |
- for (;;) {
1 {! \( m% l* ` - c = getchar(); }' \2 g" \- F- C5 D8 k3 w
- if (c == 'y' || c == 'Y'); x2 k' l" Z$ O* L. u, j+ k, P
- break;- R+ N. @/ \. `6 S4 ] C
- if (c == 'n' || c == 'N') {
2 a1 v' U, m/ l, I - printf("\nAborted.\n");
' q3 V* G1 `; ~! h4 ?- L7 d - return 1; B. o z! {' R
- }
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- if (writeparam(mac, stbid) == 0) 0 i5 i6 B+ ?: c8 e: k
- printf("Parameters changed.\n");% ~5 W8 C8 @2 x4 R
& h0 w1 u3 l1 C# D0 _- return 0;
4 ^- N {* a) Y+ E0 M - }
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