本帖最后由 0522 于 2012-3-21 23:04 编辑
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. x7 }- v+ `' l+ A修改的代码早有了。到今天不会编译。' J: O0 a# ^4 @
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
8 M* G6 B3 r: K - #include <malloc.h>
$ ~6 V5 H+ J- |% f$ f5 C! M - #include <sys/types.h>) E$ M9 c1 t" D. `
- #include <sys/stat.h>
% p u! N1 J+ U' L& \! U2 j# @ - #include <sys/ioctl.h>' Z# z1 r5 I( K7 M8 z
- #include <stdio.h>
3 X1 z4 }$ u. e8 m/ b6 v! d - #include <string.h>
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- typedef struct {/ X. Y+ P P" V
- unsigned int e2prom_cmd_sub_addr;0 A" c4 W- U( y5 I
- unsigned int sub_addr_count;
[0 Q+ \3 x& J8 l( h - unsigned char* e2prom_cmd_data;7 c. u, ^) J- @% Z8 J ^, k. `; Q6 [
- unsigned int data_count;
3 t, |* v$ Y+ Q; j - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
: P0 C( d' l, J, j - #define E2PROM_CMD_WRITE 2
7 [6 X V0 _1 z: f* P% w - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"( b* P% T9 N5 Q$ x) f3 q
! D; t( F* I3 j3 Y- A- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;4 h; N* K0 f+ i6 ^! ^1 f
- e2prom_s_cmd arg;% |7 I& U. k6 Q7 |
- unsigned char buf[0x18];
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[4 O! D: c. s% \( H: L/ O7 r- fd = open(E2PROM_DEVICE, O_RDWR);* z4 o6 J( r9 h
- if (fd < 0) {
9 A! a7 q! H* _) x - printf("Device %s open error.\n", E2PROM_DEVICE);
) j( z3 I) C f - return -1;* ^' F% @: o" Z# A: o, S
- }
0 t1 i% i* s: {" x - arg.sub_addr_count = 2;
{0 Q }8 J o% {, J8 g U - arg.data_count = 0x18;& S" _3 ]0 c9 N3 C$ u0 I
- arg.e2prom_cmd_sub_addr = 0x290;& r" G% j8 J. G& T
- arg.e2prom_cmd_data = buf;
% I$ G0 S5 B2 }+ K4 o- k - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
K1 z0 y: H& ], `2 z - if (ret != 0) {
# z8 Y. d% I+ C4 a2 K2 L4 \7 Q/ Q; ` - printf("Device %s read error.\n", E2PROM_DEVICE);
- O; _5 ~( z( L4 a- I% |1 ] - return -1;
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- memcpy(mac, buf, 6);3 M" @8 V; k, q, U1 Q8 ~. A
- memcpy(stbid, &buf[6], 18);
3 l6 z$ Q) G7 } - stbid[18] = '\0';
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; \% P; U6 x7 U- F Z4 b- return 0;7 r0 p5 M9 L$ D+ \1 A' L* P
- }
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' D( t1 P* Z! q1 N5 K; D- static int writeparam(unsigned char *mac, unsigned char *stbid)1 ]! h0 n0 l5 F5 ?
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- int fd, ret;
1 E$ [; h/ O! N: E- q$ Q - e2prom_s_cmd arg;
: l% n \+ ~0 g, U% L - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);8 U$ e {- R5 U# P9 @/ e9 K6 C6 f
- memcpy(&buf[6], stbid, 18);
8 d# W- j" B+ ?+ v7 o7 T - fd = open(E2PROM_DEVICE, O_RDWR);2 Z6 T' D( ]1 S8 g
- if (fd < 0) {
, c, M' M- V3 W8 s - printf("Device %s open error.\n", E2PROM_DEVICE);0 U8 M$ y+ Z/ |, S) j
- return -1;$ U$ V' k, Y) ]$ I
- }
- l/ \) n5 B" O2 Z& V: X) I - arg.sub_addr_count = 2;9 p! G* }/ `& ?* C
- arg.data_count = 0x18;9 ^7 R3 v5 C* h- a- q/ e# j
- arg.e2prom_cmd_sub_addr = 0x290;
( a% N$ d$ y% v2 J! ] - arg.e2prom_cmd_data = buf;
+ d3 E/ G, \0 Z$ O' b - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);# ~2 ]& u+ e! c j/ F2 [* [ h! R
- if (ret != 0) {4 q; M% H' @. M" M, {4 i
- printf("Device %s write error.\n", E2PROM_DEVICE);
8 d h6 Q3 ?, u- w: [9 x - return -1;
2 j. _) \3 ]5 S# ] - }
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- return 0;
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- _* v! c: m* t
- int main()% B5 J4 k! a0 K) G
- {
+ e4 z! s5 y; O3 J3 t( h4 D - char c;
/ e# u) s7 Y- g; t6 Y - int i, macs[6];) U/ V# w: I4 p# q7 s
- unsigned char mac[6];
0 s3 T( f. O, F S9 |& ]. j - unsigned char stbid[256];# i8 P( N3 t" w G3 [
$ c3 r# c- x5 ~8 s. y- if (readparam(mac, stbid) < 0)0 c, A+ Q4 x1 [ H- R
- return 1;8 [/ d0 e8 t5 h
+ g3 u& \/ }( _; t6 i# v- printf("Current parameters: \n");
D( p2 M1 z1 W) X$ K- y! B - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
% s) J4 C* T. {+ Y+ _ - printf(" STBID: %s\n", stbid);. J. h9 I' p; `3 l- z
- 5 n+ s5 `1 Q& u2 G! g7 p7 f
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
4 p& X& u6 Q6 v* Y* \4 b5 I" ] - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
: w' T+ b* g+ C; c* i% ]" W1 K) d - printf("Input MAC error\n");( t* h* u# r4 {3 B3 b
- return 1; h1 W: s; U q" U( h
- }; [) X& J, \; i( J' P$ o
- for (i=0; i<6; i++)mac[i] = macs[i];
* y& ?8 D6 s' x - printf("\nPlease input new STBID: ");& g( Q3 n: _# t# ?2 ~7 i
- scanf("%s", stbid);* p" e) K+ r& u
- if (strlen(stbid) != 18) {
* W- l' y! a7 y- s. Y7 p9 k. N - printf("Invalid stbid\n");
; A& i9 z2 J* f" B7 j! a - return 1;, A/ @. S9 v; F9 p: L3 N, K* \% N' @
- }
! H' t" O0 M+ Q' }) i0 ~9 ^ - printf("\nNew parameters: \n");: a- ^5 U9 \; i' K9 m% B
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);. _. u: ^5 Q9 ^3 B9 k
- printf(" STBID: %s\n", stbid);
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, b' v% n4 B. @; x- printf("\nDo you want to change paramemters? (y/N) ");
5 E5 H* p+ I; B G - for (;;) { @& p) F8 X5 W$ e7 h- z
- c = getchar();
6 [' _6 B9 L4 D4 c$ Y - if (c == 'y' || c == 'Y')
/ v% C$ Q0 A2 L+ u0 j! q2 g4 k - break;
$ [1 M! k( V1 C! d: R8 C) o - if (c == 'n' || c == 'N') {8 a% ]( h. g# o
- printf("\nAborted.\n");
1 I1 y2 \! f2 `# W8 G6 N4 x - return 1;
$ Z# e+ Z" H8 o8 m - }
* a8 R Q7 A0 R! q, C+ l! i - }
3 n! `4 q$ i# p - if (writeparam(mac, stbid) == 0)
( B& b$ j8 H; H: D& ^. y% r - printf("Parameters changed.\n");- o8 e2 x- s1 a. A. Y
: S6 |9 {' j4 ~% |: h- return 0;
0 O. B9 }# V: }' J) f - }
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