本帖最后由 0522 于 2012-3-21 23:04 编辑
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修改的代码早有了。到今天不会编译。% Y# O9 @' b+ y$ B6 L3 U. D: r
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
8 ^8 s8 f9 z( Q2 d) O - #include <malloc.h>
) u$ @% _, T0 v5 Q# | - #include <sys/types.h>
* Y9 h& T( `9 p! z: E4 M- ? - #include <sys/stat.h>
) X6 @! y2 w" J; M - #include <sys/ioctl.h>
8 w/ R J8 p! q& u) ~$ ] - #include <stdio.h>9 x- X' t6 c" [5 p, x
- #include <string.h>* Y( r' L' Y" S+ _( w2 {2 T, E- b
! s, U2 ?2 ?, J' k$ S- typedef struct {+ J: `# M. \7 H% t" R3 i) Z4 h8 ?
- unsigned int e2prom_cmd_sub_addr;
/ F* E: Q" R! ? s& u - unsigned int sub_addr_count;
7 l/ T% R! [0 f- O$ z* G2 F - unsigned char* e2prom_cmd_data;$ W& }/ f, h- J" N& i
- unsigned int data_count;- z( O d c& |" [7 d1 F( c
- } e2prom_s_cmd;( v1 v0 D5 O9 L/ ?8 y8 Z
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- #define E2PROM_CMD_READ 17 `6 o+ T: h. h# X6 W" k4 P, R
- #define E2PROM_CMD_WRITE 2
3 g9 R+ P; r4 R2 [( C2 x1 e - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"! g! W: h$ K8 C5 ^6 j
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- static int readparam(unsigned char *mac, unsigned char *stbid)( ~: F3 s5 E6 ]2 X2 B& n
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- int fd, ret;; A+ i2 I. o6 T8 }
- e2prom_s_cmd arg;3 b5 m/ r' ~2 H3 r, v
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
8 A9 s+ B# H* ^3 O4 s - if (fd < 0) {- S3 ^3 L+ B0 I, S. H! A5 f/ Y: ~9 B
- printf("Device %s open error.\n", E2PROM_DEVICE);
8 O" c6 |$ A: ~5 ^5 o0 h - return -1;
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+ s0 f4 c# o) ?* b" i; L2 f) z& | - arg.sub_addr_count = 2;; S3 W) x7 Z) j, p( s4 C: S
- arg.data_count = 0x18;
1 w4 ~, g4 f+ y9 ^% v8 @0 G& H5 x - arg.e2prom_cmd_sub_addr = 0x290;
- Y% `2 H! N; O6 R8 C% K- t - arg.e2prom_cmd_data = buf;4 O$ a! u+ R# m& K3 r
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
( ] q5 S+ K1 t2 N: I- B; ?4 W0 ]9 V - if (ret != 0) {! R: l5 W9 N( G; b* Y
- printf("Device %s read error.\n", E2PROM_DEVICE);- j4 u4 e* J6 O* @+ P
- return -1;
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- memcpy(mac, buf, 6);
4 f4 c& v0 V& K8 y% u% w' \ - memcpy(stbid, &buf[6], 18);. H# @7 \6 ?- Y8 l/ N/ @- f. ^9 F
- stbid[18] = '\0';( l! H* d# g! h a9 ?; u
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- return 0;( v# H( A) i1 }8 [! U. M0 w
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- static int writeparam(unsigned char *mac, unsigned char *stbid)5 n! _2 N( D7 [( n- N! d0 D
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- int fd, ret;
# a7 q y9 B' @: u* ~# B4 \ - e2prom_s_cmd arg;
' I! c2 S* r' {! T9 d0 J+ A - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
( ?0 {" D H6 {7 k ~3 h - memcpy(&buf[6], stbid, 18);' _( f5 @ C, ?) ~5 @/ D" ~
- fd = open(E2PROM_DEVICE, O_RDWR);
; K) B' H2 W4 c$ ^ - if (fd < 0) {( N# |3 O+ K/ C' K/ {
- printf("Device %s open error.\n", E2PROM_DEVICE);
# k+ A9 I" h7 B6 E# O& ?% L - return -1;
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- arg.sub_addr_count = 2;6 c- e4 L6 R# F; h- {0 r0 l8 O9 V& P1 p
- arg.data_count = 0x18;' E8 E) U8 B% h- [6 P
- arg.e2prom_cmd_sub_addr = 0x290;! U0 J; i* _( _/ N+ ^/ x- I" j7 O# ~
- arg.e2prom_cmd_data = buf;7 ]8 I5 f" D, O
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);) [* t7 |6 `/ E$ [6 R4 A0 |
- if (ret != 0) {
: ^5 ~ D) N; [, ?1 \& g" Z - printf("Device %s write error.\n", E2PROM_DEVICE);- ^4 d: [2 t* k$ U6 C
- return -1;
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1 V9 y6 ?: S4 \( |. W# G- return 0;, J( V5 Q' r. N& R
- }
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- int main()- _* u; {& _ \
- {
/ a- {+ B. u7 O$ w+ f - char c;
0 @7 k8 }' a$ U$ Q" o - int i, macs[6];( Z( U+ z3 P4 j9 ^* v4 F
- unsigned char mac[6];
9 T% a9 s; T) M: M7 R5 I - unsigned char stbid[256];# o3 R9 D2 q H( ], B$ \
- + H8 b0 M, q4 _/ I
- if (readparam(mac, stbid) < 0)
/ D1 u: Q: L/ s0 Q U6 [+ a - return 1;/ Z. T! R: U& C
1 b1 L% p* o8 d, Y5 j- printf("Current parameters: \n");
9 M6 N4 E+ @! e - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);& \. r, f0 A' R% e% O+ `
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");) n6 o/ w% O3 a- p
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {# B, E1 e! z7 {3 s/ D
- printf("Input MAC error\n");
2 Y9 {7 a' S* F; q: [ - return 1;# O1 m4 s) y- l% t" g
- }
: V. A# a- Q; y4 h - for (i=0; i<6; i++)mac[i] = macs[i];
" i, E* h! N S+ \2 u6 [ - printf("\nPlease input new STBID: ");
5 H' n* H: H0 w' ] - scanf("%s", stbid);
U# Z: T! l& g - if (strlen(stbid) != 18) {4 |2 L+ [$ p0 s: ]. q/ g0 i; w
- printf("Invalid stbid\n");
* G! {% l' s& `7 _' [2 q5 B - return 1;* `) ]" X5 f) W, |& p' f1 f8 b
- }9 ]( ~7 l# A* A7 N$ d$ {
- printf("\nNew parameters: \n");
t& A+ l [( a; L - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); R5 S7 v: r3 ?3 H
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");7 E" I5 h% x+ ?5 `6 x/ O
- for (;;) {
3 r2 t4 C. a7 w - c = getchar();/ r6 y% E; `/ F
- if (c == 'y' || c == 'Y')
: J1 _; B# q( w Y& o% W, S - break;
4 X' }4 V7 b3 i) D. j' Q6 b - if (c == 'n' || c == 'N') {
+ e( \9 t! x! h! l/ X" A - printf("\nAborted.\n");
5 z' y5 G" Z4 ?# A* M6 X0 t p - return 1;
$ x( P2 T* d3 w' l y - }
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2 Y. b' _- H+ i7 d" A" j - if (writeparam(mac, stbid) == 0)
5 T6 E3 ?) m8 m, `1 k+ Z- w - printf("Parameters changed.\n");, Q$ D7 J7 z+ h, c* b6 M! M
- + I9 c6 F* L) t$ S4 ^+ r$ o
- return 0;. t; P" m4 v l+ S# b( x p2 D
- }
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