本帖最后由 0522 于 2012-3-21 23:04 编辑 3 N6 T7 c8 Q( c& f, }9 u" ~
9 B9 ?/ R, Y. T6 @% T; a修改的代码早有了。到今天不会编译。9 h! N. N& c# d
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
+ {, u, b, |/ i+ o" \5 U - #include <malloc.h>
0 U' K9 Z& i% ] - #include <sys/types.h>
# i8 n4 p7 Y! M! ?0 V' j; x - #include <sys/stat.h>
% z8 o3 H# y0 _1 V: [ - #include <sys/ioctl.h>
: d _- H# M* A- Y) L2 X - #include <stdio.h>) G$ n5 l9 E, `
- #include <string.h>3 k6 w3 @: V& N) x5 }, \- N! f
2 b# |1 c4 d I, C- typedef struct {& u- u" O1 `4 s* F+ H. y& X; m, S- q* `
- unsigned int e2prom_cmd_sub_addr;
. _0 r/ A& A+ G* v0 X: p6 y - unsigned int sub_addr_count;) [/ x v8 k' b1 H' S! E6 E9 M
- unsigned char* e2prom_cmd_data;
( q9 y! [; i: o& i - unsigned int data_count;4 J/ L4 [2 }2 m) C$ \' M
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1- H- h5 h6 ~8 e$ r1 C4 w) t2 T
- #define E2PROM_CMD_WRITE 2+ C- j' h8 U' e7 S2 Z3 P
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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* H B6 I( C- h" }( n- static int readparam(unsigned char *mac, unsigned char *stbid) m5 G4 n3 u# R) ^) o
- {
; ~; [% n8 v- o - int fd, ret;
; X6 K i G8 @0 z- j+ C3 s* G - e2prom_s_cmd arg;
$ B& `. u' j: b0 J5 Q# c- ^ - unsigned char buf[0x18];- w, B: V$ `: e1 J( N
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- fd = open(E2PROM_DEVICE, O_RDWR);
/ }: |! r# H1 z9 W: r5 B - if (fd < 0) {7 {# l" H" b# ?; D/ ]: a
- printf("Device %s open error.\n", E2PROM_DEVICE);5 O0 F* P0 n# `4 J; u E
- return -1;
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- arg.sub_addr_count = 2;4 \, _( O% X9 e6 \6 I% `4 S( ^# p$ F
- arg.data_count = 0x18;
) q, e4 u5 E3 w. x) ]2 ^5 ~4 s - arg.e2prom_cmd_sub_addr = 0x290;
. D) E, q; D' H. i - arg.e2prom_cmd_data = buf;( b1 \6 C* R- _$ I$ l# R
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);8 B) Z$ \$ g0 a( r9 J
- if (ret != 0) {) a% K2 ~, `( t; G3 t3 E
- printf("Device %s read error.\n", E2PROM_DEVICE);
! @0 ? t0 T( R" I; W$ S; |9 d - return -1;9 l8 n1 u% [8 k4 K* b, G
- }) h$ f* `/ N+ ?4 W, m8 M
- memcpy(mac, buf, 6);9 M0 y7 T# X7 H/ x1 T6 X: a# |
- memcpy(stbid, &buf[6], 18);
7 P) W8 }3 o3 B8 X9 l - stbid[18] = '\0';0 W$ u S- i2 Q3 P# J+ T! R
- 2 O9 k7 X' Z; X1 ?
- return 0;
4 Z. S' U' k$ R ` - }
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- static int writeparam(unsigned char *mac, unsigned char *stbid) n+ P0 O! M4 Z' i
- {
; A" x1 d% h" u$ Z9 S. F - int fd, ret;& q: T/ N |" I8 ^
- e2prom_s_cmd arg;
( n5 p4 N# O- |! ^7 v. I: R - unsigned char buf[0x18];
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! ]8 U2 j- X. b% j/ A/ J% V. {8 i- memcpy(buf, mac, 6);
+ v% k: m: S, i& r# q$ [/ F! S - memcpy(&buf[6], stbid, 18);
% a; m, T# i$ P$ z+ q. L - fd = open(E2PROM_DEVICE, O_RDWR);
9 K1 M2 l0 j5 ~$ |9 T4 R - if (fd < 0) {; E! ^/ l D% M5 o, Y' _
- printf("Device %s open error.\n", E2PROM_DEVICE);
7 P( h5 R+ r* Q, b) ` - return -1;
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- arg.sub_addr_count = 2;& i' j! V& E% L$ j/ m5 t
- arg.data_count = 0x18;
7 _, ~0 F, c/ J& j - arg.e2prom_cmd_sub_addr = 0x290;
8 v! c' C1 }+ {( k4 C6 m - arg.e2prom_cmd_data = buf;
4 ?: X# A$ |$ ]! ]# T - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
+ M) |1 o% g3 c' y& d - if (ret != 0) {
U4 ^! `0 i$ _0 L( w# h# _9 `9 b1 J$ C8 ~ - printf("Device %s write error.\n", E2PROM_DEVICE);
* Q' x6 j$ v$ {3 Y6 H - return -1;+ W4 a/ o; C9 W" I2 R( a; Z4 e, H
- }
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# S. A: i" v, r- return 0;6 j' d# w: o0 \% d9 |
- }
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- `" N' ]: P7 @) I- int main()
: f- I. m" S* Z, g8 i, v9 k - {" A4 D, B7 s8 P9 s
- char c;
2 O6 Y m1 b" N( ^* j7 L - int i, macs[6]; @4 ^% G$ F' F# c, m' A
- unsigned char mac[6];6 ?* y- H% K- ?# ^1 d0 e
- unsigned char stbid[256];" H, U0 `% Q2 X( Q& I2 K
- ( q$ K/ [: s$ Z/ H+ ^4 e+ I0 R: [
- if (readparam(mac, stbid) < 0)( s* p# V9 z6 q/ i2 \
- return 1;
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$ ?$ `& X4 h* f6 S( E0 O- printf("Current parameters: \n");, |( z. Z: U9 s$ C1 d, Z) |: c
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);: g- C, G1 r) e
- printf(" STBID: %s\n", stbid);
! _, X! t3 c7 U9 u! G3 ? -
/ h; c; C3 l/ ~+ R - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
" s/ _& r) r1 z! l - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
* x& K% `5 m! q5 }* B6 S - printf("Input MAC error\n");7 Z: h/ I; _% t8 o
- return 1;: Q; [8 K2 D& \4 ^* n
- }: ~- c; O- O; k- x+ h d
- for (i=0; i<6; i++)mac[i] = macs[i];
! |9 ^1 i5 | O) j - printf("\nPlease input new STBID: ");+ U3 I7 @# Y, W9 n! \( r! }( t
- scanf("%s", stbid);
; ~+ x; P- \2 Q7 o - if (strlen(stbid) != 18) {
% A U0 E6 `" N* d - printf("Invalid stbid\n");6 d2 E# U; [$ x: x
- return 1;0 m, G' _, s& ~- e. k) o- j1 f
- }, M1 W4 Q6 E. H
- printf("\nNew parameters: \n"); o4 O7 R6 q! t! w& x, t
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);3 A w" \+ _7 z# l
- printf(" STBID: %s\n", stbid);
- ]2 i1 M- e7 X& G
8 d0 o, {6 X" a9 }3 o( j; K4 ]- printf("\nDo you want to change paramemters? (y/N) ");! ]- G7 C' i6 g1 `* z3 _
- for (;;) {2 ^- P! d: b. h+ R
- c = getchar();* X! V. h) H2 `" r6 |
- if (c == 'y' || c == 'Y')
) U/ k" s3 C1 K- M% N) g. V- _ - break;/ ]- ?% `' c, V% ^
- if (c == 'n' || c == 'N') {, k0 y. d0 u* v' ?4 ^+ T9 A
- printf("\nAborted.\n");5 t# B" Q5 c3 _
- return 1;
2 u# X# B2 F/ |& v - }
4 t" r3 m" L3 O' f, M; E - }
7 M6 r# X0 U$ X9 g4 s L - if (writeparam(mac, stbid) == 0) " C. X; H( v$ F8 ~ `
- printf("Parameters changed.\n");/ U6 M) v( c0 l( y, O& y
- 1 p* X( d7 i( t* K: s! a9 T0 K( O) {
- return 0;( U1 x5 T! V0 |0 [: [
- }
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