本帖最后由 0522 于 2012-3-21 23:04 编辑 1 @7 T* Z9 w5 f7 C _
) B+ o7 d; K# d修改的代码早有了。到今天不会编译。5 m+ @# i$ N6 w9 u- m$ A. i
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
' f+ y3 n+ S- _* d: v1 H - #include <malloc.h>
7 ]1 t- F V+ U+ B. [6 b. t - #include <sys/types.h>: F4 ^8 e7 |) Q' X4 Q* [8 f; _: D/ m9 a
- #include <sys/stat.h>
1 n x6 J+ r7 c0 f- A5 X8 l+ W - #include <sys/ioctl.h>, f7 y, |7 r7 B i/ L2 F4 X
- #include <stdio.h>9 J+ v9 H u) p6 q% H6 \( E
- #include <string.h>
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8 l+ l* Z" f" A8 y- typedef struct {6 e( P' K+ z" `3 V0 ^. \; J
- unsigned int e2prom_cmd_sub_addr;
# t3 i9 }* A5 s4 u& P$ a - unsigned int sub_addr_count;$ H2 I& |/ Q( M2 o* @* }
- unsigned char* e2prom_cmd_data;6 y2 f: o7 {+ @
- unsigned int data_count;) x7 A7 S/ p, Y4 E: ]1 L5 U
- } e2prom_s_cmd;$ y& N3 A0 m, O% l
- m6 t) H. h( T0 B) d- #define E2PROM_CMD_READ 1
3 a9 K6 A7 E% l0 v: y+ K - #define E2PROM_CMD_WRITE 2
0 G4 ]$ B. x. f+ R7 Q7 A - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)
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" a0 X3 ~* A* x# P' B6 s - int fd, ret;2 U3 M/ _6 w% q+ U) L y
- e2prom_s_cmd arg;& b5 }/ D x! \/ ?' y; l& ]7 @7 X
- unsigned char buf[0x18];
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0 z5 B! ~/ ^9 p/ p, Z- fd = open(E2PROM_DEVICE, O_RDWR);4 w3 A Q s& `- E3 m; s
- if (fd < 0) {- x! f6 H) b8 f
- printf("Device %s open error.\n", E2PROM_DEVICE);
$ J) l: A7 y. M& H# c - return -1;" t5 J }! o7 d. w% X, l' ^
- }
) f2 h% ?; K* _5 w1 u: `9 b' @ - arg.sub_addr_count = 2;
- t; H2 G: j9 R% r' h3 A - arg.data_count = 0x18;
7 d8 x( G: E+ Z: W+ k- ^" @ - arg.e2prom_cmd_sub_addr = 0x290;5 u! p# V4 ?' P. G5 S0 |4 ]( w
- arg.e2prom_cmd_data = buf;
( b: @# j* U$ F: ~. ~( d A5 J - ret = ioctl(fd, E2PROM_CMD_READ, &arg);* B9 [# I+ x9 `) @7 Q( I
- if (ret != 0) {
3 E) G* S6 B4 `6 n9 s/ e j1 U0 g - printf("Device %s read error.\n", E2PROM_DEVICE);& m s. V2 d( s- c4 m& ?" r4 \
- return -1;
7 S' G& V& _* g* `& u - }
8 ? {# w1 D2 T' E$ E# { - memcpy(mac, buf, 6); ~& u0 |' y2 P: j3 a- Q
- memcpy(stbid, &buf[6], 18);0 a0 z5 K: x. Z v7 r n; {6 j9 R
- stbid[18] = '\0';
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/ z3 d" l( Y2 Z! Z( |, V- return 0;
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- * Z5 |2 K3 S" N6 ~9 U5 K
- static int writeparam(unsigned char *mac, unsigned char *stbid)
2 W4 U; E+ A7 D8 k; P - {
0 n8 h" O" o8 u8 \' C - int fd, ret;% l: {( o3 _+ ]8 M
- e2prom_s_cmd arg;
" c z& N6 i U - unsigned char buf[0x18];3 h0 F5 x* q5 z9 D; Q \5 {! |
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- memcpy(buf, mac, 6);& Q$ S# S% m* ] ] L; y
- memcpy(&buf[6], stbid, 18);+ u+ E; L6 d$ h
- fd = open(E2PROM_DEVICE, O_RDWR);
^- S' S E. N - if (fd < 0) {
% X* d J f6 n. `5 ~' Z' z* h - printf("Device %s open error.\n", E2PROM_DEVICE);
# ~6 G( z$ v0 v( N3 W- s - return -1;7 b7 Y0 l' k8 T' ^- D v: M
- }5 R( w! h: `5 v3 x# [! E" A: s
- arg.sub_addr_count = 2;) y5 I- ?& v! ~* Q9 E
- arg.data_count = 0x18;
. `7 c8 a. A1 J3 \ - arg.e2prom_cmd_sub_addr = 0x290;" J- b, e- l8 T6 m/ `4 G
- arg.e2prom_cmd_data = buf;
6 C8 y# z4 ?8 [- G; [ - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);$ K- Y4 `1 K7 `; Q
- if (ret != 0) {
/ Y# c+ _( @: ~0 N+ F z2 |3 n - printf("Device %s write error.\n", E2PROM_DEVICE);
: o* ?) e R# o - return -1;' Y k8 l) t3 ?- m9 C1 e" L, W
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- return 0;
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5 k/ m7 B3 V+ y8 P" o5 S- int main()
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" n( \. Z' |# H5 c, K) r$ x" W - char c;
8 X, o6 z( m3 e2 r; x - int i, macs[6];
( F0 _6 [$ z+ h" P; C, h - unsigned char mac[6];
( ~4 i$ c; R$ b - unsigned char stbid[256];4 _4 ~! E8 a) U; G; F6 x
! i" t; d9 d1 i1 \; Y- if (readparam(mac, stbid) < 0)7 O+ ^" K9 L# t7 ?
- return 1;
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m/ y2 U6 ~( X4 J' ]) z* a' {& K- printf("Current parameters: \n");5 ^: @& |' Y8 U( J5 L5 q( C
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);) s# l$ Y3 a# [) B
- printf(" STBID: %s\n", stbid);; O5 M; \. P5 _; ]
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");& {1 s1 G$ p0 ?- R1 n1 h. n; r3 o
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {3 X' A( W- m. Q% W, E3 M2 K: ^8 M
- printf("Input MAC error\n");( A0 F; d! O7 t+ K
- return 1;, E7 l# d3 @, V2 y
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- for (i=0; i<6; i++)mac[i] = macs[i];
* s3 B M; o ?4 z1 ~; G7 D - printf("\nPlease input new STBID: ");
- m1 V4 x1 ~$ l1 i2 L- Y$ z - scanf("%s", stbid);0 }* J5 E$ a. T) G0 G2 s. j
- if (strlen(stbid) != 18) {& Q# p/ X8 D, R/ j$ _. t* T
- printf("Invalid stbid\n");! |' p* y* y$ x- B+ {# c$ ~# b
- return 1;4 g/ Y2 W! j( u* o; z
- }
$ Z7 F2 n& {* v- U, _+ u! d - printf("\nNew parameters: \n");/ \6 l0 C; R! H" B) Q" v( Y1 G+ e
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);8 h6 G: Z* D9 f
- printf(" STBID: %s\n", stbid);
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! m l5 b3 @, k3 P9 K- printf("\nDo you want to change paramemters? (y/N) ");
# s- }6 \3 T0 C7 Q+ s$ i - for (;;) {
9 R! Z. D# R. x2 s8 f - c = getchar();
0 Y+ r& w. J/ U5 ~& M. [; q - if (c == 'y' || c == 'Y')9 c6 w; `# M0 T; ^4 ]9 t
- break;
1 q. w- |) \3 r6 ]9 ^1 R: o - if (c == 'n' || c == 'N') {# {6 f! c$ y. ~; q- ^
- printf("\nAborted.\n");* k* U1 {) N4 p- J, l6 l y! b
- return 1;$ d3 N9 y( N, L3 }( O- g* f
- }
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- if (writeparam(mac, stbid) == 0)
" n9 ?+ N3 ^# b6 b% A6 L- q; r - printf("Parameters changed.\n");1 n! c8 s/ I4 U; h" N6 i* J! q0 ?
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- return 0;" N! }5 W3 s8 w' A
- }
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