本帖最后由 0522 于 2012-3-21 23:04 编辑
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* U+ E4 U: L3 n% S2 }: A- U修改的代码早有了。到今天不会编译。- _, q% R" Q9 F1 Y s' Y
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
9 |, F0 Q- z: s5 a7 i7 U9 ~; d, A* @- C - #include <malloc.h>
- x" {! _: g! Z! O- V' m$ m - #include <sys/types.h>% D. Y( }7 h# U* ^2 V- W$ c; @0 i
- #include <sys/stat.h>
$ ~0 n4 z2 D0 `+ E2 h# |4 ] - #include <sys/ioctl.h>
0 A# R3 R8 P" z& Q8 T - #include <stdio.h>
* e* L* C/ m) I - #include <string.h>
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- typedef struct {
- O/ c2 x# K& n& c - unsigned int e2prom_cmd_sub_addr;
1 R. K% J- u* y# N, @6 p - unsigned int sub_addr_count;* o3 V8 t' H* p9 x
- unsigned char* e2prom_cmd_data;& y$ b: i% o: Z0 ?, g# g" l
- unsigned int data_count;
. ?4 A8 Z/ ?1 R9 _; o - } e2prom_s_cmd;6 l, z5 p5 N, q# W: `$ H
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- #define E2PROM_CMD_READ 1! J+ M8 w0 l' ~' G
- #define E2PROM_CMD_WRITE 2
; k7 Z3 Z# ?5 C" p - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
% {9 ]7 I& B5 L5 a - # ^% { S; c& G {* p
- static int readparam(unsigned char *mac, unsigned char *stbid)
$ Y7 Y' b' `, C6 [ - {
M* \) @. V+ q1 E: W - int fd, ret;
8 \" G z2 \1 x4 y - e2prom_s_cmd arg;
5 o l6 _4 J3 N n4 r& z1 j - unsigned char buf[0x18];4 `2 c# G1 G/ K+ i
' p3 J0 v) w/ I; o, v% f- O$ r+ S- fd = open(E2PROM_DEVICE, O_RDWR);
- M( R+ _- }; w+ a5 V - if (fd < 0) {. O$ k9 C2 [' A. \& c
- printf("Device %s open error.\n", E2PROM_DEVICE);/ Y0 I- [( n; q5 ~$ f
- return -1;7 a1 l' |1 q5 h$ f
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- arg.sub_addr_count = 2; l4 Q+ g% T! O% I( {# H2 ~
- arg.data_count = 0x18;
, ?/ n! }+ q8 H7 ~7 W, } - arg.e2prom_cmd_sub_addr = 0x290;
& ]+ [5 o5 L8 C/ _ - arg.e2prom_cmd_data = buf;, Y) q9 u. o* H; J+ d
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);3 q7 S* k! v0 t. q$ B
- if (ret != 0) {
& d. ~" z4 E& e6 d# \1 |& F - printf("Device %s read error.\n", E2PROM_DEVICE);
8 ^7 N8 c( o3 A' p - return -1;
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- memcpy(mac, buf, 6);
3 p* n; w1 o) T. ^) g - memcpy(stbid, &buf[6], 18);
$ e1 x ~' ^& h - stbid[18] = '\0';; }2 M* B7 y( h8 a0 E* D; O
: i& E$ g: j& \% @8 @$ t. d% O; d- return 0;; c) e7 ~7 ]2 c* K3 X
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3 b) Z- j4 j* K# S3 j6 ] d- static int writeparam(unsigned char *mac, unsigned char *stbid)" B0 W: \: m- l% z0 S# l
- {
& d7 @8 ~5 k& B - int fd, ret;& J& }3 [1 x3 Q
- e2prom_s_cmd arg;) h! _* _( J0 L8 {5 r
- unsigned char buf[0x18];
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- memcpy(buf, mac, 6);( _4 J; A* s1 ^+ k: _4 c5 c
- memcpy(&buf[6], stbid, 18);
# j" b( w3 ^4 ? - fd = open(E2PROM_DEVICE, O_RDWR);4 h p/ }3 d+ M q4 c t# L6 n/ A& v
- if (fd < 0) {
f" L9 o0 H8 W2 n' ? P - printf("Device %s open error.\n", E2PROM_DEVICE);! Y8 a% c( W- } \# O. w
- return -1;
L4 C ~5 m7 L- i: k* `4 t - }
b# S1 u5 B8 c, G/ b7 c5 i - arg.sub_addr_count = 2;7 r$ ^% m2 Q Q- y+ B& l; M% s0 @
- arg.data_count = 0x18;
5 U. f! y8 n" O2 _- I3 U. [; E* u - arg.e2prom_cmd_sub_addr = 0x290;
& L) p/ g5 Y5 V: _! ]/ ?( j6 F - arg.e2prom_cmd_data = buf;- m$ z% A. F- z( R& w: f1 o
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
. s ]$ S, c! |- i& q& E - if (ret != 0) {
6 p' [" \5 \ C* S9 O* C" W. M0 t - printf("Device %s write error.\n", E2PROM_DEVICE);- J9 n6 y+ g) V- \) I( l
- return -1;9 H2 o: b) o; O8 n7 h9 m
- }
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4 A" \8 r8 s! o- G- return 0;
4 G; d5 \% ?7 g3 N - }
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3 _( x$ x0 d! ^: Q& ]; p- d- int main(). R5 S# k( D+ [( y8 E
- {% }# S! S+ k8 T5 T4 o+ W
- char c;
! Z8 G1 E; m$ i: `0 h9 F - int i, macs[6];
" @6 v5 T% W9 F8 B) m8 L* l; s - unsigned char mac[6];* {/ r* f$ b0 b' Y
- unsigned char stbid[256];2 ^ `; y* l- G h" W" \
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- if (readparam(mac, stbid) < 0)" X! Z* A: Q, K [7 G0 k
- return 1;* e- I! D$ m9 t
: n/ n$ Y5 y( d @; |- printf("Current parameters: \n");8 }1 h" E Q8 @1 h8 z' p- @
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
3 K7 @% k! a! y+ H - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");" s2 k0 W; C6 Z# D
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {5 J1 k$ L/ F: A1 R7 h
- printf("Input MAC error\n");/ r. [+ E' ^! W: N. D) E
- return 1;% k% R. V1 t" P" p
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- for (i=0; i<6; i++)mac[i] = macs[i];: X( h- C, c$ ?& N# n
- printf("\nPlease input new STBID: ");
2 O4 m( z. l/ r9 G) M' V - scanf("%s", stbid);
! c+ f) y8 V- y1 q - if (strlen(stbid) != 18) {
) N$ l( p- k$ { F H; b: t - printf("Invalid stbid\n");
t+ b# G0 T+ Z! V8 { - return 1;
# X; Z, a; i1 A - }
$ H1 M+ g8 `9 x, f5 S - printf("\nNew parameters: \n");
6 y w6 O. H, |& ~* g( A6 K - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
" }. Z+ U, o! }* U1 @ - printf(" STBID: %s\n", stbid);
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9 ?& N1 ]' T O- printf("\nDo you want to change paramemters? (y/N) ");
# a: z8 J* P9 u - for (;;) {( f: T9 @5 z" y8 f$ t# J0 \* F1 y
- c = getchar();
+ R- p q6 ?# q% ]3 k - if (c == 'y' || c == 'Y')$ Z p7 x8 P/ v; o( E9 E
- break;8 S l( z' ]7 l* J/ m
- if (c == 'n' || c == 'N') {
$ h6 i' A! K9 i4 [ - printf("\nAborted.\n");
+ ^/ y. y- B9 _( f! Z1 Z - return 1;# {$ l, C+ m" L' ]
- }
+ d$ {8 C# u; C* q1 @ - }+ H, z7 {5 w; _8 ^. |! E& x
- if (writeparam(mac, stbid) == 0)
' N% C7 o- _' ^+ \ - printf("Parameters changed.\n");! r) ]5 w8 ]; S5 v
' A4 z4 i. l& L- return 0;- m; ]. d5 r" B7 q& g* K
- }
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