本帖最后由 0522 于 2012-3-21 23:04 编辑
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修改的代码早有了。到今天不会编译。8 T( ^1 T8 y- K5 F
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
, |) s2 M1 K9 H: d3 C' W: h - #include <malloc.h>' V3 M! V8 z6 r$ ]
- #include <sys/types.h>
6 ?" D1 E7 t& m* O$ R) c. R# W. N - #include <sys/stat.h>. I( O/ h- t- F3 f- @, ~
- #include <sys/ioctl.h>
8 F1 C; i; L1 ]+ G b8 g - #include <stdio.h> p' X7 G% e B' s, f* J- g2 O
- #include <string.h>
6 h( C1 P+ y0 t K) v1 W D6 s9 f0 A8 O - 8 L, L+ g; H; {( W. ~1 U) \
- typedef struct {
9 ]% g- R' `& N; f M& V. M& N# i - unsigned int e2prom_cmd_sub_addr;
# |6 f& B% x: _2 k$ t# Q0 M - unsigned int sub_addr_count;
/ b" j: @8 e7 T6 i: d' w0 e - unsigned char* e2prom_cmd_data;: |' W0 `- p: x4 e+ ~8 v! L( ~
- unsigned int data_count;7 _ Y% m* X! L |8 V- `
- } e2prom_s_cmd;0 y8 K) l, G, E8 q
- # ?' w* L1 G0 S* u. W5 H
- #define E2PROM_CMD_READ 1+ w- @; e& A M
- #define E2PROM_CMD_WRITE 2
2 S/ |8 H8 r8 t3 O - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"& l* O1 M1 @1 T/ k; J3 }
+ W. N& F2 I5 W- h* q/ j9 F- static int readparam(unsigned char *mac, unsigned char *stbid)
* I [/ F; k8 ?& d: e# Y - {
5 N. }4 d" u/ i' l, N - int fd, ret;# c8 g" O3 N2 G! K5 |* R1 K: W6 c; t
- e2prom_s_cmd arg;9 K* u' Z6 `# ]& o( C" c
- unsigned char buf[0x18];
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! }* g/ z" M0 [( |# H! q# t* u- [- fd = open(E2PROM_DEVICE, O_RDWR);
+ z( T* D8 S$ c- H+ Z: H( u - if (fd < 0) {
$ Q" F" Q+ o5 s" E - printf("Device %s open error.\n", E2PROM_DEVICE);
3 C7 s) [- V6 O( v6 j - return -1;
! N ]& A& k# I: c/ e - }
' i& a" m) Q; k" t* a$ r' A - arg.sub_addr_count = 2;9 V/ P7 i8 ^4 J: o ~
- arg.data_count = 0x18;7 T$ l3 q" B. i& @# a
- arg.e2prom_cmd_sub_addr = 0x290;
; v1 `) q" _1 C) F# ~* h" |! ` - arg.e2prom_cmd_data = buf;
' C$ m" Z' V7 G. T1 ^# B- a A - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
% u7 y( E1 t, o - if (ret != 0) {3 U% H; A0 Q: B! a
- printf("Device %s read error.\n", E2PROM_DEVICE);4 c3 Y9 U' |5 _7 L1 K
- return -1;
" C4 F8 w5 L/ P; f- }4 K - }
8 K a; m! K9 @% ~9 z1 T - memcpy(mac, buf, 6);
0 X, g# ^$ T% D7 Y4 k - memcpy(stbid, &buf[6], 18);
7 L& V5 k* J# c0 D - stbid[18] = '\0';
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- return 0;$ J# J/ x0 M: @( z1 W- o2 m8 o
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;5 p9 @! t% D' O5 q" e6 n
- e2prom_s_cmd arg;
) d/ n0 |8 } Q" U1 n - unsigned char buf[0x18];& G; [$ e/ T' t( g6 d, g! s
- 9 W0 z V9 Y- T$ L' F
- memcpy(buf, mac, 6);9 W' }8 J$ i5 e: G% i
- memcpy(&buf[6], stbid, 18);
2 P% r# Z3 t2 u8 \ - fd = open(E2PROM_DEVICE, O_RDWR);
: k, r7 Y& R" ^3 ~- l - if (fd < 0) {
* p* g- G9 I, [, z& T - printf("Device %s open error.\n", E2PROM_DEVICE);2 `' N9 T2 J1 O6 w7 f
- return -1;/ M0 i' n9 n1 s9 M
- }
# o* ?- [6 [+ C+ ~7 E1 y - arg.sub_addr_count = 2;* }; d' x, f, w0 c) k
- arg.data_count = 0x18;
( b% o" f1 p2 W2 C+ o2 @ - arg.e2prom_cmd_sub_addr = 0x290;! T# _( J# Y w. y9 _% T
- arg.e2prom_cmd_data = buf;
) f0 M) j5 W. m& {! i E1 b+ X/ v - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
5 q9 l% p- `! i# g; R9 S - if (ret != 0) { I* D5 R, v/ V) ?$ L1 D" @
- printf("Device %s write error.\n", E2PROM_DEVICE);; b; @ B0 b/ O) A+ c+ [( O( s
- return -1;
+ |( f( _( [3 [- x1 i - }, Y/ l( y0 H6 D$ ~* q* q/ ~0 {
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- return 0;& o/ |7 `, ?1 K9 F% K& Z9 @
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- int main()! L0 E! t7 y; @6 @
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- char c;
7 h2 v' a) a# H4 T! {" c - int i, macs[6];/ S* x. H7 m& m
- unsigned char mac[6];/ P$ J3 F6 H. F K4 R d
- unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
! U) L, e" P) P+ n( V8 X - return 1;# m P1 i7 n5 o3 V/ r
- 3 B% o# J: W9 h) y( g0 ^! }
- printf("Current parameters: \n");
7 S0 G7 P: _5 p - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
) W y3 F+ X& J& q& V- d - printf(" STBID: %s\n", stbid);
" r1 x! j9 G1 M0 h) h -
6 A: k- D& R7 k" y0 w! n - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");2 G- P! K8 F3 \
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {& N4 o1 I7 K9 O& F! `2 K$ j
- printf("Input MAC error\n");
" b! E+ Q' X' y6 [ - return 1;
5 M- _0 ?; G. C9 X7 z! \( R1 `; ] - }
9 g# z8 l& s- w8 } f8 D - for (i=0; i<6; i++)mac[i] = macs[i];
% d. ~/ U9 p- m6 R - printf("\nPlease input new STBID: ");
; N" r2 i2 ^0 S6 T - scanf("%s", stbid);
I# Y! [8 r2 D- c% F: l - if (strlen(stbid) != 18) {
% n" y3 v9 K1 b5 F - printf("Invalid stbid\n");
8 m8 q. c( R6 z, @& i - return 1;$ o: X8 T, q# L$ W% P2 g: T
- }
3 v7 n6 m/ v7 K0 u9 f( n - printf("\nNew parameters: \n");
: f$ M U& v H- M# L, `+ X - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
R# ~2 P3 W' L4 C2 {, ^5 n - printf(" STBID: %s\n", stbid);. R6 b/ ~$ L2 F7 V: b: G9 e( x8 S
- 6 n: [2 `4 O1 Z, c
- printf("\nDo you want to change paramemters? (y/N) ");) R3 [& B9 F6 d6 z, G& ~" m/ N# t
- for (;;) {
1 C0 V" D2 z0 G- c) R E% [/ w) F - c = getchar();
: z& O( E+ F+ `5 G - if (c == 'y' || c == 'Y')$ N& b6 g6 R# D( x# O
- break;
( }0 M5 S0 W3 X O0 o! ~ - if (c == 'n' || c == 'N') {0 ^8 [) Z; X' y7 w, [
- printf("\nAborted.\n");+ @4 b5 y1 S& s( c8 M
- return 1;: z4 }5 `. a0 o; K K9 m( Y4 a
- }# R8 ` U/ \- ?$ g" M% _3 M
- }4 n9 M6 r2 z3 n& W; s( s/ j+ v3 {
- if (writeparam(mac, stbid) == 0) $ P. i) A: B$ Z( w/ {% K$ @9 T
- printf("Parameters changed.\n");
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) P, L+ u2 g# G P7 W( j v2 h- return 0;
3 ^0 |& X4 ^, x; s P - }
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