本帖最后由 0522 于 2012-3-21 23:04 编辑 $ @1 V3 h2 ?% T
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修改的代码早有了。到今天不会编译。) p" @! y/ W. r1 H0 `( X7 s; I
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h> n; K# d% i2 f1 p3 b. ~
- #include <malloc.h>
, h$ I+ N* |& Y k - #include <sys/types.h>+ e; j; |8 ^9 u7 M" C
- #include <sys/stat.h>
7 i4 y H" C6 d0 k0 g) W9 ^, q* Q - #include <sys/ioctl.h>4 K. K% x# Y6 K' L
- #include <stdio.h>
0 i$ t- `1 b4 E$ W& t$ I3 U - #include <string.h>
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9 f; o$ _6 z N9 i" p) y1 S2 f- typedef struct {, R5 ]$ K5 _4 \( M
- unsigned int e2prom_cmd_sub_addr;
; c# H- m6 ?" ]7 o0 l - unsigned int sub_addr_count;- u! `+ T! x3 W" v, O1 j1 c6 ]
- unsigned char* e2prom_cmd_data;! |4 C: E$ C1 J, k' c
- unsigned int data_count;
8 v# l" y8 Z9 P5 k8 s* c w, z - } e2prom_s_cmd;
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4 |3 A: G, B4 ~; ?! p( D# v- #define E2PROM_CMD_READ 1
& `: e2 x8 c7 E4 A) m - #define E2PROM_CMD_WRITE 2
+ v7 e0 B. S. N* ?2 D7 I - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)
8 ~" G2 i" {7 c1 h2 u& ]2 X+ F) v- N - {
) Q) x" A- b: s& }4 o; w - int fd, ret;3 L& S* r/ `7 S0 p( D: V+ q, v0 w
- e2prom_s_cmd arg;, n$ U; ?& u9 Y3 i+ m# u' t/ V
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);7 |9 g6 w6 T* e c6 J2 Q
- if (fd < 0) {
0 J) V# p: O/ { [: K. z" S - printf("Device %s open error.\n", E2PROM_DEVICE);
$ E4 q' ~+ T1 Q# N, D1 p- |4 z - return -1;% ]$ J5 V( e+ n# d2 x
- }
7 C S3 C7 E* ?% G5 o6 m8 g - arg.sub_addr_count = 2;
* A3 e9 d4 w& E* I0 V - arg.data_count = 0x18;$ r- e3 {" X: `: W
- arg.e2prom_cmd_sub_addr = 0x290;! y* j1 y# m' {4 Y
- arg.e2prom_cmd_data = buf;+ Q' q: o1 Z$ M' J- b1 R) ^
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);% z2 M; w9 E- E9 R. o C4 v3 i. e
- if (ret != 0) {" I% B% S8 j0 y3 K3 Z
- printf("Device %s read error.\n", E2PROM_DEVICE);0 l- n3 Q$ Z! }1 M+ U
- return -1;
& `: g; x! D- \ - }
" V: a' b2 a9 t5 Q - memcpy(mac, buf, 6);7 Y* Q& U6 k$ `" K8 m, D8 E& v# }
- memcpy(stbid, &buf[6], 18);" c/ I& m9 p6 a' j' k6 U) D
- stbid[18] = '\0';
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1 E- X) d1 I/ H% a7 C+ A6 p- return 0;
" {- N& w" {2 X" Q8 a - }
* P; N1 ^$ C! z# {
! f! Z5 _% r) K9 y" R- static int writeparam(unsigned char *mac, unsigned char *stbid)+ C6 C! G: T6 Z2 N0 U5 {
- {
+ T. s4 l- a Y) V: n - int fd, ret;7 o1 j7 T% A: K
- e2prom_s_cmd arg;
! g! P3 v+ q! U1 `' v - unsigned char buf[0x18];' x; Y' h( `; _5 Y
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- memcpy(buf, mac, 6);
9 Q3 e0 d; k5 i; s) C% e0 e5 F$ s - memcpy(&buf[6], stbid, 18);) A. Q% l; t" |3 `8 |. O9 J( _) i9 u
- fd = open(E2PROM_DEVICE, O_RDWR);; c, d' K* G- a' A" Q7 d5 {; K
- if (fd < 0) {
/ m" f Z& r) C' e - printf("Device %s open error.\n", E2PROM_DEVICE);) F0 Q& U) @5 x0 G% x2 M& b
- return -1;7 B% ~* z- y7 o$ V4 d5 X
- }
0 n& e" |+ c' A; r# z - arg.sub_addr_count = 2;
- V/ O; h1 X7 W' { - arg.data_count = 0x18;6 U4 X4 Q+ |9 Y c# G, P9 h* g5 t
- arg.e2prom_cmd_sub_addr = 0x290;
2 b" W, v! y+ R4 e0 n - arg.e2prom_cmd_data = buf;8 j8 y3 |$ n* N" m n% W0 i& A
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);# p& I9 q; r0 g# S( }
- if (ret != 0) {
* h8 q0 s* Q0 d" @2 q) E) G - printf("Device %s write error.\n", E2PROM_DEVICE);
: C4 L8 u# I1 Q0 H - return -1;8 o) k) U1 ` H, `9 V
- }
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& ~% Q' o4 S/ V) f6 C- return 0;& o$ |/ W' @) m1 N) ]5 G) i0 [: l
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- y. u$ g3 J o- int main()
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- char c;: k5 t$ k5 `, y& k8 r" b' Q) K
- int i, macs[6];
. d: d, L* J9 y8 o - unsigned char mac[6];$ R9 |; C& U: _/ e1 _& O5 }
- unsigned char stbid[256];
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5 p# e& N2 F, M3 u( s5 S- if (readparam(mac, stbid) < 0)0 f) L p0 m8 G" J! t2 m6 [
- return 1;) ]/ W5 j7 W) m% n2 |9 n, A
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- printf("Current parameters: \n");- d, E6 e8 P) k( e' w
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
8 e; z1 z3 Q" ?8 w - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");2 y( n! h# H, I; G$ s- H9 |
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
8 w/ ^! Z( P x - printf("Input MAC error\n");; f4 U1 E# G" a& U) W7 ~
- return 1;5 o. O. \4 M, |) r9 O0 U8 p
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- for (i=0; i<6; i++)mac[i] = macs[i];. b3 z5 V% |/ F* x
- printf("\nPlease input new STBID: ");
/ K1 X: O: @. V0 o5 V" J" ^ - scanf("%s", stbid);7 L" b7 C$ y: R7 J5 C
- if (strlen(stbid) != 18) {
. j2 c$ z3 N' @ - printf("Invalid stbid\n");
' Y& `9 p' A z7 }$ V3 a - return 1;
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- printf("\nNew parameters: \n");9 \8 N2 d7 E: v, Y
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);& `: ]( B; }; b% R/ g
- printf(" STBID: %s\n", stbid);) d' h, ~( Q2 x9 M2 m4 n: w
3 G) V2 f8 W3 [; u' \- printf("\nDo you want to change paramemters? (y/N) ");
( i# w( S- _. j6 Z9 @/ O0 w, s8 h - for (;;) {9 O0 G. {6 U1 ~2 n
- c = getchar();* \+ K3 Q; W' |5 h' m" l, ?
- if (c == 'y' || c == 'Y')
+ V! Y/ B1 T, U - break;
J2 ?# m. e3 L* X, R9 n1 M" d% f - if (c == 'n' || c == 'N') {
/ f# U: `- r |; p$ p1 G/ E7 Q - printf("\nAborted.\n");
2 c+ t6 \& L! x; {+ _3 A - return 1;+ ?. v7 j/ ~; V6 l+ F
- }
# {' Z# o5 \6 G/ p: R - }3 ^5 l3 B3 {, |
- if (writeparam(mac, stbid) == 0) 9 `5 l3 ]( R! J
- printf("Parameters changed.\n");
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- return 0;1 I! `4 {, c- k! _* F( x
- }
复制代码 |