本帖最后由 0522 于 2012-3-21 23:04 编辑 ! f4 r( c6 }) {" f; a* k7 g5 v8 p
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修改的代码早有了。到今天不会编译。
6 a* v- T% N( U+ T, o需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
/ n0 [% O8 L% v+ f: a3 D% l - #include <malloc.h>
. D. q7 U* u7 n. \1 p5 C+ t9 z - #include <sys/types.h>5 H9 a9 j& n! q; I2 ]
- #include <sys/stat.h>( W2 W' Z$ E- S ~
- #include <sys/ioctl.h>
3 D0 z: o6 V# S% C9 [* S - #include <stdio.h>! v7 f8 S; }5 K+ c
- #include <string.h>
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- typedef struct {6 `9 n0 _" q7 x& [9 U8 F: }
- unsigned int e2prom_cmd_sub_addr;$ y0 c! J9 @1 r* ~+ |
- unsigned int sub_addr_count;! t" @, V+ Z/ W: T
- unsigned char* e2prom_cmd_data;
! {) w0 M4 s$ p. B3 C - unsigned int data_count;4 h9 A, [2 V3 h0 [2 k8 b M% z
- } e2prom_s_cmd;5 j* P) _: W9 x7 O' C B/ f, t
- ; T8 g4 N3 e+ U* I3 U+ N
- #define E2PROM_CMD_READ 1
! Q, n( n4 f# j6 v. S) ? - #define E2PROM_CMD_WRITE 2
$ G3 N' B5 F; @* h - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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: U" q% m6 @) K: H9 D8 [, X- static int readparam(unsigned char *mac, unsigned char *stbid)1 d" j, n: M- s( G. I4 D I
- {
4 l8 Q7 S- n, ?' l, r E& \ - int fd, ret;5 n- y& ~8 j5 b7 ^& @9 s7 T/ `7 L- k
- e2prom_s_cmd arg;
; c, _8 W! a8 O2 z& J - unsigned char buf[0x18];3 D$ \6 y& M+ c8 z/ I
& J7 t! }; D; e4 n& u- fd = open(E2PROM_DEVICE, O_RDWR);
: T; {! ^9 m% ^ A2 X |# h- k. V - if (fd < 0) {
; Z( Q6 c: F% Y5 Q/ o3 f - printf("Device %s open error.\n", E2PROM_DEVICE);
# n* |& M7 l# o' z - return -1;( H- l( U% n% Z
- }5 G4 ~; _) F/ ~+ _& ?# @, M
- arg.sub_addr_count = 2;
6 e: j& ?; G2 C' D4 A# ^ - arg.data_count = 0x18;" _1 A" k: E' T
- arg.e2prom_cmd_sub_addr = 0x290;' G( P( E$ l+ k. ]3 ~
- arg.e2prom_cmd_data = buf;# H0 Q) D5 m7 l# o" d8 k
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);: Z2 l/ N7 @$ u, B7 k
- if (ret != 0) {
7 D, e& l. I% J - printf("Device %s read error.\n", E2PROM_DEVICE);
4 P8 [- Z m% Z# k% {" d* o - return -1;
: U: ?0 B4 ] p- t - }
J) b$ I* Z% L9 n; Z3 }9 R - memcpy(mac, buf, 6);, u$ h8 N* u; t8 \8 u: R# x
- memcpy(stbid, &buf[6], 18);8 u% L0 p4 J! m) t
- stbid[18] = '\0';# d: l. P' `$ W* n5 ]
# m: P' U9 N& O- return 0;$ r2 ]9 z; l* b& e5 w# k9 _
- }, d6 F1 X; s$ `, Y9 E( v7 W! F" g- V
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
- P. Y6 k, y' W1 G' [$ G - {5 B [, H- X! X z, u7 \
- int fd, ret;
$ S* n! R( Z& O' X - e2prom_s_cmd arg;$ r9 d/ D4 I" d! v. y8 P' j
- unsigned char buf[0x18];& g+ e C1 R6 z8 G, c
- , t2 c" c$ B0 D) m0 ]6 P8 z
- memcpy(buf, mac, 6);$ M7 `. S) m6 U4 w
- memcpy(&buf[6], stbid, 18);9 D, k3 A1 f3 z
- fd = open(E2PROM_DEVICE, O_RDWR);: O# j) s" n- O& A6 L) ]
- if (fd < 0) {
: |, L1 [2 ^% q9 Q - printf("Device %s open error.\n", E2PROM_DEVICE);
0 D8 g* H& o0 W7 Z+ B - return -1;
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- arg.sub_addr_count = 2;: x: y, W1 y' h1 ~
- arg.data_count = 0x18;
- o" ~" A% a2 `. s- ? - arg.e2prom_cmd_sub_addr = 0x290;
3 C, X \$ M& \' d2 m1 f6 l - arg.e2prom_cmd_data = buf;" B" z: w0 |( P) X( h
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);/ B. Z8 {: b; [( m2 S+ `8 C
- if (ret != 0) { _9 }' ^$ h/ `
- printf("Device %s write error.\n", E2PROM_DEVICE);
; b0 p; f; _+ _ - return -1;
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; P* r2 [% x1 u2 N! t- t- return 0;) U1 _/ [# ]4 l g& y0 }$ C3 \
- }
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! c$ `9 L# m; R( [- int main()
! j5 P* X4 i; n - {
3 l4 W f$ O& Z3 I: d - char c;) B' K' B. o2 G6 Z) W L5 C# v
- int i, macs[6];
+ V- _# Q& f/ I2 _ - unsigned char mac[6];
0 u. W' Z# ?9 z! v - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
7 l9 d) H6 f$ ? - return 1;# c; m3 I3 D1 |
- 6 C6 L0 R2 B. F; U0 z' T& f! {
- printf("Current parameters: \n");# Z3 B; E9 _- f h9 c
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
% V _. a6 b8 S3 k# n2 o - printf(" STBID: %s\n", stbid);5 s1 A: C0 x# I: \
- , Q- b) P% n0 X
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
4 Y) S3 C* Z/ e! Q- O& I - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
4 J {7 T3 ]1 e5 L. n - printf("Input MAC error\n");
4 l- u* \! A3 b8 d D) N - return 1;9 l$ C, ?0 A3 J Z7 I1 J/ ^( Z
- }3 I3 D4 B0 K J- \
- for (i=0; i<6; i++)mac[i] = macs[i];4 d1 n2 o% J& A( L& C4 F7 V
- printf("\nPlease input new STBID: ");5 M- w5 P) h; C/ C" G
- scanf("%s", stbid);
/ Q6 b q7 k% i* m - if (strlen(stbid) != 18) {
* X6 v* d# ~9 W2 a - printf("Invalid stbid\n");
$ b; i2 p2 S% A! n* v+ m/ t - return 1;. b3 ~! G1 o) h* Q) e3 y& s0 J0 S$ T
- }; J5 {: }5 v6 I
- printf("\nNew parameters: \n");
* v# V" ^6 l% k% a8 R - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
4 d4 H$ k! ?) |. L: L% c( F' S - printf(" STBID: %s\n", stbid);" I$ `4 K6 l( h- W: I {
2 O; r8 K1 v' L* i6 r- printf("\nDo you want to change paramemters? (y/N) ");
' T0 {* S) `1 c - for (;;) {
% D1 U. a( B/ w - c = getchar();
7 B* ^( n8 Z) K5 p( i/ D: M, j - if (c == 'y' || c == 'Y')7 B \% F/ s! d1 r7 J
- break;6 y2 D6 `3 H- [7 F. s* `
- if (c == 'n' || c == 'N') {
: F4 \) x+ a( ^% @9 ^ i - printf("\nAborted.\n");
; S8 t- _# S1 H3 s' k3 [" y! j - return 1;
& n. Q# E6 u6 v, I# E$ O! Z) e# K - }' r4 C/ J, @3 d3 r& F
- }
1 j! C/ Z3 C. J d - if (writeparam(mac, stbid) == 0) " i2 p- G1 u) p) j
- printf("Parameters changed.\n");
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- return 0;
( G" l/ U, D; H6 w) c - }
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