本帖最后由 0522 于 2012-3-21 23:04 编辑 & ?7 {# J- O/ y7 d2 Z. g
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修改的代码早有了。到今天不会编译。
6 V" f) [; t% [/ ~6 {% ^5 s7 j需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
* h r7 F% R2 r$ X - #include <malloc.h> r0 ~0 m3 p7 s0 Q; X* c
- #include <sys/types.h>8 M' p- a7 {" ^2 n
- #include <sys/stat.h>, Z$ J4 T P, Q' E! g" N! A2 |+ V3 C. K
- #include <sys/ioctl.h>6 O) ` }9 j3 ^% B
- #include <stdio.h>& l0 ]( ^/ y" |/ C6 d8 K( i: R
- #include <string.h>* ~4 x$ {9 ?; ?4 m9 f2 a0 }
- 4 D- W. i0 p# V }# W+ @& l
- typedef struct {
C% c6 \- N2 t. ~ - unsigned int e2prom_cmd_sub_addr;
, D- Q* Y* ~% o! x' P - unsigned int sub_addr_count;/ Y3 Z! K- m, w2 ?* X& @2 X- z
- unsigned char* e2prom_cmd_data;1 f8 E0 ?" s; n' Y
- unsigned int data_count;( \3 V! g5 o% G
- } e2prom_s_cmd;
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+ C( L, B3 R" |, y4 t2 Y- #define E2PROM_CMD_READ 1+ {/ \; q* k- |8 c9 D0 S1 E* X8 o
- #define E2PROM_CMD_WRITE 2
" l- t9 F5 J5 e( N( J4 o# L( o( z - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16") V! G% [& M0 c! y H/ H6 e! g( r
, }1 ^2 B e$ t4 X+ a- o- static int readparam(unsigned char *mac, unsigned char *stbid)6 s6 o' ^ {9 e6 i5 a
- {
$ s" ?) @) C* M2 G: M' j6 y( Q - int fd, ret;
2 l' U8 o9 X% L" a$ C - e2prom_s_cmd arg;% m' F$ `* T" S" y, H6 x# u7 g. m
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
7 q! W0 o. w; H7 N; r+ f; Q - if (fd < 0) {& Q5 ~/ v( X7 h
- printf("Device %s open error.\n", E2PROM_DEVICE);
- C: Z% J4 U: p3 u - return -1;( O4 Z }6 M3 d7 {
- }
% I9 B9 N6 L3 W$ C2 B" R - arg.sub_addr_count = 2;
* \3 ?6 E4 S) R" K - arg.data_count = 0x18;, p4 I% G ~7 j6 p
- arg.e2prom_cmd_sub_addr = 0x290;
/ o8 W( v' z' e - arg.e2prom_cmd_data = buf;' q7 {; V' q$ c
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
# J7 J, Z- n+ m" Q5 a' r/ \7 x; j - if (ret != 0) {1 E" h6 Y. I0 E( U( I
- printf("Device %s read error.\n", E2PROM_DEVICE);
: n1 x3 k) p) d) L9 q: e+ H - return -1;" k& @- _9 m) S% S' f
- }
& q! a, W% S* v" a- Z - memcpy(mac, buf, 6);+ U$ N, D+ t. k0 s% L, F% h1 ^
- memcpy(stbid, &buf[6], 18);
# g' e+ U6 D* t% s( a9 ~ - stbid[18] = '\0';' N( X) ~6 U( P
- * m+ L" P. q: Q' v r- ]
- return 0;
3 q/ i: F' i9 [# i) g - }
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3 H5 Q# b5 N; ^9 b& [) q- static int writeparam(unsigned char *mac, unsigned char *stbid)
& \( V5 n4 [- Y' y4 W$ t& u) S. Y/ K( u - {/ C& a+ C# @5 W% Y* m
- int fd, ret;
" O# z$ d! G3 n/ P5 _ q3 M9 P - e2prom_s_cmd arg;
5 x6 w& J! O- ?0 o7 C f6 b - unsigned char buf[0x18];5 E1 K* G7 r; I) I4 I2 c6 u# e1 i
% l+ O$ s ?! O0 l4 ~# I N- memcpy(buf, mac, 6);4 w2 c4 H; |2 k! c
- memcpy(&buf[6], stbid, 18);; T" z! {" W( z+ z7 }' Z6 \$ w
- fd = open(E2PROM_DEVICE, O_RDWR);
& \' D; q$ y- C+ |( O) S2 `4 ` - if (fd < 0) {+ J+ V% Z9 X8 K4 n8 e: U
- printf("Device %s open error.\n", E2PROM_DEVICE);
) O& H* A& T1 H% m2 ] - return -1;/ N( w3 \) ^6 t* V
- }
. @+ l3 e4 N5 p3 w; }6 N, w: I* Z - arg.sub_addr_count = 2;8 ?0 b# J& l9 O) @" P
- arg.data_count = 0x18;
; [* n0 b2 k* \$ B, m' I7 O. r - arg.e2prom_cmd_sub_addr = 0x290;
7 J' N6 D7 q0 y. r/ D2 q) z - arg.e2prom_cmd_data = buf;
" V L4 A6 q7 w& q- G - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);* ]% o- u" ]5 a, {0 V' B- z+ E. M
- if (ret != 0) {
& H7 z- j: `- I2 F, W# i - printf("Device %s write error.\n", E2PROM_DEVICE);% T3 a7 L8 j, L* a* z7 G! R+ K
- return -1;
5 m4 \4 n# G) X" F0 ?7 h5 S* g1 E - }
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- return 0;( g0 s( W! z6 s; w6 n/ P
- }
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( z; Q D) `5 }9 M- int main()
* u g( s. q8 b0 q; J& B) h/ j - {
# a4 ^: e; h* I7 ^9 A! \ - char c;
: |0 A5 N! |- Y' c" @% } - int i, macs[6];
8 N& W& k V$ S, |% m) a) c6 v - unsigned char mac[6];: e2 `5 E: c* G
- unsigned char stbid[256];1 X1 g9 v, [* k. f; Z
1 {% ?4 D8 U! m" Q0 F; R- if (readparam(mac, stbid) < 0)
" q+ P0 J$ X9 E& \ - return 1;
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- printf("Current parameters: \n");+ M# k d2 z7 M+ K
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
6 A' s* u5 Q" v! L$ {* U# |- j - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");2 k5 K( w% q7 A$ J5 Y
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {. K/ i# f: `4 R, h3 ?
- printf("Input MAC error\n");1 a6 ?" t' B0 ~% @4 x
- return 1;
Y3 {' X; c7 I) @# ^3 V - }
0 q: y l# D! _0 N7 T) C - for (i=0; i<6; i++)mac[i] = macs[i];
! X2 g; b D$ e: k" O - printf("\nPlease input new STBID: ");8 i" i2 q6 m, Q9 J
- scanf("%s", stbid);- ^8 }3 S2 T+ C' e* t
- if (strlen(stbid) != 18) {
% v1 c# h1 @( F3 g5 W; L9 v; d - printf("Invalid stbid\n");6 b& o5 U! t: o0 c
- return 1;- m2 Q% o, n% R! _6 ?; {/ K
- }4 r$ W8 j: ?, j6 L
- printf("\nNew parameters: \n");
k- T/ u- i' j; e2 u/ Z - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
$ q( C T" a& S - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
" A2 O; f1 w" ]+ v4 [4 H9 H - for (;;) {
' I/ B/ S( l W - c = getchar();, _5 S @% \* U
- if (c == 'y' || c == 'Y')
" r/ n- [) z7 W$ N5 }& c - break;5 T5 V: @' }5 m1 h9 r, a7 ?
- if (c == 'n' || c == 'N') {
/ ^. a. x2 Q! w3 s7 c" u t+ }: ? - printf("\nAborted.\n");
( K- O! Q$ u. x' v' s - return 1;; y4 ?; |! G3 T" [- @
- }
9 Q% x+ h8 F1 T" z- _ - }* p5 T2 X/ I3 O( N
- if (writeparam(mac, stbid) == 0)
* J: |% k+ v8 ?8 }7 ]5 w5 i# u2 V - printf("Parameters changed.\n");. y4 L4 i: A0 o5 }, ]
- - O0 `* K& V1 Z+ P: e# K: M
- return 0;& l; F! H9 \1 P& `: I% N5 N
- }
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