本帖最后由 0522 于 2012-3-21 23:04 编辑
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9 S* R- \7 ]% j5 L6 k R- {修改的代码早有了。到今天不会编译。: R! q/ t4 E# m/ l' J
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
9 q; P+ N* n+ o; M Q) c+ H1 @ - #include <malloc.h>
: L) R5 V( u* C2 {/ m4 j - #include <sys/types.h>* B1 V6 O4 u) v, _& X5 T+ v
- #include <sys/stat.h>; O, p- B9 |# d) d3 C
- #include <sys/ioctl.h>( j2 m/ x6 T# R
- #include <stdio.h>2 n0 a( w( S4 w
- #include <string.h>5 @0 j+ i3 D- H
- r/ F; ?8 O7 f9 J5 V/ G- typedef struct {
+ W' e) C+ Q9 O/ D | - unsigned int e2prom_cmd_sub_addr;- E2 {6 Y" N: ?3 g/ ~
- unsigned int sub_addr_count;% p5 s D w& v C- C7 }" W+ g
- unsigned char* e2prom_cmd_data;! d2 R0 N+ o* b/ k& V/ R
- unsigned int data_count;
6 s2 @3 e" V7 @( p: \5 Z' Y/ ] - } e2prom_s_cmd;
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( x8 j$ i% [1 o- #define E2PROM_CMD_READ 1
& l- U" ]7 ]8 A2 u- k$ U - #define E2PROM_CMD_WRITE 2 Q$ K: q5 [( @0 a5 A* R( y
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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7 a1 Z* k; P3 |7 P$ k- static int readparam(unsigned char *mac, unsigned char *stbid)
3 W, A! i) }* w - {, o+ q! w( \; E% E( ~
- int fd, ret;! V; q# X8 S) X
- e2prom_s_cmd arg;
& g* c* X6 J x7 X8 x! x6 w - unsigned char buf[0x18];% ~' C! T3 _% W% d% q
/ S+ a7 {+ ?* p, k& Q7 J+ Y4 Q3 E- fd = open(E2PROM_DEVICE, O_RDWR);
) ]: V) v3 a1 G! G1 w1 z - if (fd < 0) {6 X9 w, @+ b! {) K0 h: ^
- printf("Device %s open error.\n", E2PROM_DEVICE);
! Z" C t5 N! M1 W) X: y7 F! { - return -1;
5 `( A; M$ j9 \) D - }
% Y W) B; b6 F - arg.sub_addr_count = 2;
- N N o. l1 d7 C2 ?! f - arg.data_count = 0x18;
# B7 N, L# N' A4 M: N - arg.e2prom_cmd_sub_addr = 0x290;; s6 S! b& _. b! b3 n
- arg.e2prom_cmd_data = buf;
; o* E# y9 L4 V3 e @9 ~ - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
6 z6 ~6 S* e- Z& W2 ?& h: q9 p - if (ret != 0) {9 c3 j% _. N; |9 T( m ~
- printf("Device %s read error.\n", E2PROM_DEVICE);
3 r$ f1 m0 `# A5 y - return -1;
* L% a; `: H S& g% p - }
* i; Q) T. T1 ~/ P/ q2 {8 s - memcpy(mac, buf, 6);0 N% b' ~( r8 K5 j r6 k
- memcpy(stbid, &buf[6], 18);0 D; O% n/ x& l
- stbid[18] = '\0';5 x! l- F) T8 U! n
- & ~5 u4 q' ?# I( H7 N4 b
- return 0;
5 I1 ]* {" G! _9 Z+ a0 d+ o: c - }
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7 z/ W( ^2 w8 v/ j- static int writeparam(unsigned char *mac, unsigned char *stbid)/ u9 e$ F- j8 t3 N8 K$ H) B. ^
- {
2 }) s& D6 F" B) i! n# C$ v& s - int fd, ret;
- U( u/ i3 e) X - e2prom_s_cmd arg;
* r& R, c# t+ f - unsigned char buf[0x18];4 O# K; H! \2 L) z$ V" |+ T
' q$ O" \; h. \8 ]' ^5 J! b4 Q% D- memcpy(buf, mac, 6);+ b, H$ M1 \! i5 _8 G
- memcpy(&buf[6], stbid, 18);
3 y. B9 E% S( G - fd = open(E2PROM_DEVICE, O_RDWR);% A8 T% ?# i. U8 j
- if (fd < 0) {0 g5 G1 {7 ~' r8 `4 H
- printf("Device %s open error.\n", E2PROM_DEVICE);
; }$ e5 T8 @" \7 Y8 _: f D8 B - return -1;# b+ b/ K9 f2 a- c! n4 S) z
- }
8 L/ c/ X. ^- r) Z, I - arg.sub_addr_count = 2;/ @' X7 p, r, p6 p1 ]1 O: q. z: [
- arg.data_count = 0x18;4 e* V4 h+ J" h6 @ s; w# y. T
- arg.e2prom_cmd_sub_addr = 0x290;
4 B z) M3 W. p+ D6 K - arg.e2prom_cmd_data = buf;1 r- m/ \- W. w0 m8 | T5 b
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);: h( n ]; v1 o5 i9 U
- if (ret != 0) {
$ x% X; y* H4 a0 ?/ E - printf("Device %s write error.\n", E2PROM_DEVICE);% g0 U+ J; i5 @' X2 n
- return -1;
- H3 n5 ~+ W( U9 D, G* U - }0 w( ]9 _& C1 j$ E7 L; K, c
- 1 i$ k, Z; `2 K% t( a0 ?
- return 0;( t+ k. C! D7 e5 A
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- ; z+ E1 \3 i9 l" P/ k' e) V9 M
- int main()5 y* ~% k: w5 i' u+ o- n
- {
' N' w& W/ y P: x# o$ F - char c;& D2 h1 U) S6 b+ |6 C7 _- ]+ \* P
- int i, macs[6];$ T6 l1 U6 ^0 v7 h* [/ R3 ^
- unsigned char mac[6];) K0 _( |7 B, X+ W' j# D. p& P
- unsigned char stbid[256];. B7 ~" k2 Y( k4 r$ Z$ Q
+ I: H% v) d6 K2 m- if (readparam(mac, stbid) < 0)
0 w, I: [) x k4 E7 n; c - return 1;! l( h C f: r v* f5 N C1 d" X$ G
- 1 o/ @8 o4 Q5 x% i5 l- h/ |5 X
- printf("Current parameters: \n");
! W8 p, ] i6 _+ h: {4 { - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);% y6 n0 x( z; Z, W7 I
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");: q9 ?2 A9 b2 o
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
0 y7 z0 f d) M. _! ]% U7 o0 W - printf("Input MAC error\n");
2 N) X1 u$ V* x2 w! N - return 1;
0 D$ D3 z" v" F6 t" v8 j7 V8 z/ |2 ~ - }
$ \2 l1 z8 }) B6 t& [& j0 c% h ?' L - for (i=0; i<6; i++)mac[i] = macs[i];- |! P$ U& m! n" o6 R
- printf("\nPlease input new STBID: ");, S( C# z7 I4 [( g
- scanf("%s", stbid);
+ R% P, P0 ?4 N9 \) Q; g+ T' g/ u - if (strlen(stbid) != 18) {
$ O5 y8 e; I8 d* i( [ - printf("Invalid stbid\n");
. X& ?* ]6 `2 L7 A/ | - return 1;( f& u" i$ n( R
- }
9 U# i5 A9 A* u7 Z& R, F4 w, ^ - printf("\nNew parameters: \n");1 I2 b4 W6 a& P' p3 c7 N
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);5 w t4 i$ x7 \" M/ ]: B' v
- printf(" STBID: %s\n", stbid);" H: T- `$ \) _
- ) |& H4 L, @% h( X* Z2 v: w
- printf("\nDo you want to change paramemters? (y/N) ");
0 k- J+ S5 q$ J* Q - for (;;) {
, ?$ a, v. T' u5 @$ K6 H - c = getchar();
+ _% E. g: Q& z6 g/ ^ - if (c == 'y' || c == 'Y'): [7 m4 e( p; C5 v& ?% u+ H+ f
- break;
]1 | L) y* S& @% b' Z4 a - if (c == 'n' || c == 'N') {! Z8 m3 @2 j& g" }% A! A
- printf("\nAborted.\n");( I+ B$ ~1 C# Q3 ~) R, g0 ^
- return 1;
6 q6 s1 L; m0 Q$ U" M( d; I# g' S - }
) |- \* N2 P1 o* @ - }
/ |: ~( M9 e n - if (writeparam(mac, stbid) == 0) 1 M$ Z* @) W2 n: n& r8 Z$ ~
- printf("Parameters changed.\n");
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; a4 B( e8 ?. m6 U7 f- return 0;" b$ o. @$ n3 V' x5 R
- }
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