本帖最后由 0522 于 2012-3-21 23:04 编辑 + {6 W* i+ S+ s/ `" ]; ]) N
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修改的代码早有了。到今天不会编译。 Q% e+ ~' ?! m
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
/ b9 s2 f& _$ n( w" O' G( H - #include <malloc.h>
, l/ h3 `: I2 [0 o% F7 o# \ - #include <sys/types.h>; g; Q, n% Q0 j
- #include <sys/stat.h>/ _! a x3 u5 A0 {6 B2 \
- #include <sys/ioctl.h>0 v+ J, Q% v" f7 P k
- #include <stdio.h>/ L& }" X- o9 e4 H+ f9 F
- #include <string.h># \4 R' n* g* I( [$ B* S V# u
# @8 ^* c. w; ~4 }) A0 x- typedef struct {
8 H9 b0 y, O5 ~- T& }1 e$ e1 G - unsigned int e2prom_cmd_sub_addr;8 ^; g* M" V' d0 |2 H( K4 I
- unsigned int sub_addr_count;
$ ]& ~* p- C# J5 _$ ` - unsigned char* e2prom_cmd_data;( o Z2 G, [: Y( \9 Q( y4 }! o; x
- unsigned int data_count;
- h4 Y; U; {$ ?' F0 d' w - } e2prom_s_cmd;
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' O- `& S# a; t# V5 G* s2 A- #define E2PROM_CMD_READ 1& p) w- \7 ?. T* b! |* @1 p2 I# ^9 l
- #define E2PROM_CMD_WRITE 2
" L2 U6 K9 t$ W5 k - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"$ o: r7 g/ O0 `( R( w
% @" P. z- N8 v/ \- B0 W1 Y- static int readparam(unsigned char *mac, unsigned char *stbid)# ^4 ~. k, C s. s! p# f( y4 g
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- int fd, ret;
+ p/ s# D: [) L - e2prom_s_cmd arg;9 T0 x5 b7 L: m: C, \ j
- unsigned char buf[0x18];9 ?9 _6 M4 Z/ F/ i
- : N: s' H: X# I: z* C
- fd = open(E2PROM_DEVICE, O_RDWR);0 I2 s W1 B/ P; ?
- if (fd < 0) {
, I! |1 C- f" f# O( S$ g - printf("Device %s open error.\n", E2PROM_DEVICE);
9 u: c9 ~3 ]6 r# G- Q4 i - return -1;
- P/ x9 D/ Q, U B - }! m, n. W9 e% d( K- c; K1 V" u
- arg.sub_addr_count = 2;
! [$ e% x# [* |1 x! ` - arg.data_count = 0x18;
2 Y3 r, F% ^- B, x6 \0 |( [7 @ - arg.e2prom_cmd_sub_addr = 0x290;
/ s+ d$ |% G* w7 k - arg.e2prom_cmd_data = buf;. b; k2 x) k( S) M$ _: M1 O
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);3 s5 }, H: X; H9 s9 G
- if (ret != 0) {" U1 L6 y9 {0 N5 k' X
- printf("Device %s read error.\n", E2PROM_DEVICE);
- t3 i" N: w6 o" m - return -1;; z/ A7 G4 _/ U$ x2 [
- }
" v- B' c0 y! p9 p" R, z0 k - memcpy(mac, buf, 6);
5 K2 `, q9 E5 v7 Z - memcpy(stbid, &buf[6], 18);& z0 E |7 ^; {" M2 f5 \ X8 b
- stbid[18] = '\0';
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- return 0;
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- ' O6 ~, V) J* v3 T/ Z# c
- static int writeparam(unsigned char *mac, unsigned char *stbid) q, {3 Q- `" T1 G; W
- {% d2 p0 N; V& ~* b0 Q5 {
- int fd, ret;) ?/ Y- w# n: c: L, w
- e2prom_s_cmd arg;" @" f( a. H/ y
- unsigned char buf[0x18];
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4 }0 [5 F2 f7 c0 U9 [' P& `" A- memcpy(buf, mac, 6);
1 w R+ P' [0 e5 K& a) G4 i* I - memcpy(&buf[6], stbid, 18);
) R" t9 j5 k `, U0 n+ Y - fd = open(E2PROM_DEVICE, O_RDWR);
) j9 I+ R3 p& I; a3 i - if (fd < 0) {6 f) [: U1 M4 X( o
- printf("Device %s open error.\n", E2PROM_DEVICE);2 V" _9 g' e* d# H. P
- return -1;
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- arg.sub_addr_count = 2;1 X8 E: I' B/ i, C5 J9 Q: Z
- arg.data_count = 0x18;# _' J6 c! \$ {) J2 m8 _0 w- U
- arg.e2prom_cmd_sub_addr = 0x290;
1 S& {& u6 A# Q+ H - arg.e2prom_cmd_data = buf;
, H6 h4 N5 n3 q: L - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
& S! U' O6 W: W. O6 A* [) r9 q# ` - if (ret != 0) {1 c3 N: x+ K1 a& t$ D
- printf("Device %s write error.\n", E2PROM_DEVICE);
U) S0 T4 g% n7 p5 W; F - return -1;; i, ]8 ~/ R3 H9 d; z( A- x' M5 r
- }
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- return 0;7 U. [" q" o5 |7 j: B
- }
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- int main()' ? w: `( S$ N- a3 o1 Y& B# g
- {
z V0 y, q- N% Z( Y) A( C - char c;0 ^, ^6 I5 [: }' @. F* K; l3 D( ?
- int i, macs[6];) Q7 C1 z8 S9 o7 r+ y) f
- unsigned char mac[6];
% ]) c% d# U7 _8 e - unsigned char stbid[256];
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! f4 ^1 A' a1 I9 e1 ~; X) N- if (readparam(mac, stbid) < 0)
* y5 d5 w p" n5 l1 C S- _5 Z0 T - return 1;
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+ H: A5 g6 f! e* t- printf("Current parameters: \n");- J1 B4 M7 k$ s3 m
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);- w! U+ e" ~* ^' m( F. F% g9 t) F
- printf(" STBID: %s\n", stbid);
/ x6 p3 S" {& M$ b - + p; z) F7 v( {
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
) o- ]/ R# b% p" _8 \: s - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) { S8 F5 e4 k8 w& p8 j
- printf("Input MAC error\n");& R% I0 c, Z% X8 t0 F% K9 P
- return 1;
! a, R/ ] W% a - }
# w0 P8 R- H. ?" D5 P- V. I - for (i=0; i<6; i++)mac[i] = macs[i];5 X- j- Q8 t, M4 |
- printf("\nPlease input new STBID: ");' h' I/ e& G3 n: a
- scanf("%s", stbid);" v5 f0 w; Q% e& l5 b/ B
- if (strlen(stbid) != 18) {
+ h# a2 U* x# ~; u5 G% z2 h0 p - printf("Invalid stbid\n");- |( }& I) a1 f- a6 y+ H
- return 1;! H- Q b) K, w w. U# b
- }
6 C( K) ~5 a1 ~9 M - printf("\nNew parameters: \n");
; Z) D0 P. i# D- P5 ` - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
2 K( i7 e- O! [% y V0 o% f - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
r/ I4 A! o8 K( K7 i' F; i- F: w# y - for (;;) {! w0 W7 E) M+ U# ], B* N* h
- c = getchar();
, A2 r$ ]* S P; L5 h! p - if (c == 'y' || c == 'Y')- o4 |6 G0 a9 ~. m' k
- break;
* }; y: m1 l; x- R' {' ~% b - if (c == 'n' || c == 'N') {; r6 t. O/ B# A9 |& k: I
- printf("\nAborted.\n");
6 Z( r2 v0 l. {( } - return 1;9 \! o, G; n: x0 \+ E
- }
$ G: H8 Z5 U" ]5 Y - }
! x, o8 Y& }& a5 c+ x+ i - if (writeparam(mac, stbid) == 0)
- \8 d8 Z. q- D8 D' L( e/ @# U - printf("Parameters changed.\n");
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- return 0;
5 n6 j+ n3 l9 a1 a3 l - }
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