本帖最后由 0522 于 2012-3-21 23:04 编辑
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( A9 w7 _0 ]7 D' v/ i5 j修改的代码早有了。到今天不会编译。
/ p1 B: y% A6 g. A& X需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>6 S2 i' u9 q9 b* w
- #include <malloc.h>' ~# E& M# V! w1 a7 T" s# F
- #include <sys/types.h>2 h& V( H2 S6 D
- #include <sys/stat.h>
5 h2 h. f% L: X) t p - #include <sys/ioctl.h>6 _4 T) ~8 `4 V+ }+ E5 {& r
- #include <stdio.h>: j+ I x$ ]& N5 B4 U( B) C
- #include <string.h>' N1 o5 F' F2 ~+ m
% `/ x5 A7 W5 |4 x5 j6 `- typedef struct {
7 t: x, r1 H+ h9 n, |: ^, G# W- g - unsigned int e2prom_cmd_sub_addr;, q9 n5 g0 J3 d( I* u' F
- unsigned int sub_addr_count;
8 L: [" s4 N8 o' a - unsigned char* e2prom_cmd_data;
% S+ Z! J3 F6 b8 W( Z - unsigned int data_count;# W+ I& H- C8 V! r7 C3 U1 z. B9 I
- } e2prom_s_cmd;
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0 M0 i2 a; ^; D- ~- #define E2PROM_CMD_READ 1, x, B8 H4 `. m- \- [
- #define E2PROM_CMD_WRITE 2. l' I) i; k! y, m- K. ?
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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% O# A9 n0 L% B$ l6 y$ D8 d2 [- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
: d: P( [/ Y# t" \+ w3 } - e2prom_s_cmd arg;
4 K, U6 n+ g# C2 Z% w - unsigned char buf[0x18];6 ?$ @5 y( K6 v3 J
- ; B. U* K' L2 [! |6 ?# l* k
- fd = open(E2PROM_DEVICE, O_RDWR); b0 |8 P6 h$ S/ A5 q$ x- n5 |! [
- if (fd < 0) {% W( X- P! ^8 B/ J5 @4 v
- printf("Device %s open error.\n", E2PROM_DEVICE);
' I, }9 h: N8 u+ O! ` - return -1;. W, D0 M0 z$ N# W5 r
- }
" i2 n! c C0 e4 h) \0 L/ g - arg.sub_addr_count = 2;
% v9 J7 B5 R8 N* K1 B" w: T - arg.data_count = 0x18;
9 }' d5 i2 L3 K9 S" m! V4 ` I - arg.e2prom_cmd_sub_addr = 0x290;
( \, A0 ~! B9 {0 r l - arg.e2prom_cmd_data = buf;
c; L: X' o! \& P }7 k - ret = ioctl(fd, E2PROM_CMD_READ, &arg);! r+ b& b- G5 g% K/ d7 a, q
- if (ret != 0) {
7 `8 F6 c: L& k - printf("Device %s read error.\n", E2PROM_DEVICE);- B, i; S$ ]4 G' t: `
- return -1;
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- memcpy(mac, buf, 6);
4 i/ U5 G& {/ Y0 q& _ - memcpy(stbid, &buf[6], 18);
$ f: W5 d& Z8 x& @9 c& O - stbid[18] = '\0';
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+ y1 J9 V8 h6 C" z2 L- return 0;
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. {* g" d t9 n4 Q- static int writeparam(unsigned char *mac, unsigned char *stbid)/ D( b; ?) d* ?7 x' o0 J. @5 w
- {
! `/ y r+ g3 T- O/ K5 j/ E - int fd, ret;4 V$ P; g% |0 F, A2 c. |$ P
- e2prom_s_cmd arg;. {1 E c, T* {, }7 R) ^+ o
- unsigned char buf[0x18];
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- memcpy(buf, mac, 6);; m% B7 l0 W' y; k1 Z3 ]4 g
- memcpy(&buf[6], stbid, 18);
0 F8 F4 T" M! ^+ Y5 H) Y3 S( c+ M - fd = open(E2PROM_DEVICE, O_RDWR);, z2 N- M! c% S& E( W) A
- if (fd < 0) {
) \) m/ P$ Z5 y7 M6 d - printf("Device %s open error.\n", E2PROM_DEVICE); O9 Y+ @, s2 s' o$ K
- return -1;5 t+ X M# I/ `0 V7 h( e, p
- }# y' P6 c- X; s/ a$ I: w
- arg.sub_addr_count = 2; b' Y' U( E( z3 H4 Y
- arg.data_count = 0x18;$ r# V! S9 `+ j" u; J6 d$ }
- arg.e2prom_cmd_sub_addr = 0x290;
6 x/ t, u9 `+ j* u/ v5 M. ? - arg.e2prom_cmd_data = buf;7 V2 p0 F( W# l( u" p. i o9 R. }
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
2 o8 Y0 e& E/ t, | - if (ret != 0) {% ~6 m; I: ^* S( A/ J. m
- printf("Device %s write error.\n", E2PROM_DEVICE);
1 _/ e. Q" n! g+ W% V* h* X* U - return -1;+ ]& X& y$ j+ H2 c# z' w3 e
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- return 0;
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& B9 G( f. [$ ]% ^. R8 M- int main()# F n" _1 i5 [ h' t" v
- {
- T+ u; M- D/ [1 s6 }- s) Z9 c) {7 C - char c;3 [/ N1 Y9 }; F2 D1 I w
- int i, macs[6];
, Q' d1 K2 `7 ` u - unsigned char mac[6];% U9 M! Y0 Q# O
- unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0) g* [0 S# v1 P( H
- return 1;% d8 q: L! b8 j2 ?
" Q, B' b5 S6 |: e# C- printf("Current parameters: \n");
% i2 ~- I# r4 @" L: Z8 y2 w) T - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);" v2 k) s$ G9 G; w& G6 f
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
6 [8 |, f6 A& o1 n# o - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
( |$ x; ?, ~6 @( h* {* A0 x- @ - printf("Input MAC error\n");
0 w( u- e. N6 o" f: a - return 1;$ W# p4 o7 C: y+ m* R1 g& n' Z
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- for (i=0; i<6; i++)mac[i] = macs[i];0 \' a, C% X0 @
- printf("\nPlease input new STBID: ");7 y7 |0 S5 ~2 v. C6 V* N. D
- scanf("%s", stbid);
. F" [9 e7 ^$ t/ n G: q4 B8 z# h" Y8 ~/ ~ - if (strlen(stbid) != 18) {1 g4 @9 [! o3 }0 }
- printf("Invalid stbid\n");% Q" t; s3 l* b: `6 V' ?
- return 1;+ l; @- }0 L5 S: G# |( N
- }* I0 P# E6 Y$ {; B1 U
- printf("\nNew parameters: \n");
) B' k) R: }0 @: c$ ]1 e - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);& h/ T1 `1 u2 D4 I$ e/ `
- printf(" STBID: %s\n", stbid);
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3 [! I" p3 e, k* l- printf("\nDo you want to change paramemters? (y/N) ");
- z7 q) Z m6 W! i/ h - for (;;) {
: C% y0 r6 s; E - c = getchar();, F1 S K9 V) ^. y$ y
- if (c == 'y' || c == 'Y')4 j5 V" g5 V! ~
- break;, G7 |+ c! K! I! M7 }
- if (c == 'n' || c == 'N') {
$ x0 ^' n' w: M4 \' {7 E% V7 x5 w - printf("\nAborted.\n");
" Q( B! _! P' I, h- o - return 1;
; | p8 Q2 s& \$ y - }
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- if (writeparam(mac, stbid) == 0)
- H& t) O9 z. A; q - printf("Parameters changed.\n");" o [" |: o" ^% B, }
- 2 T# r( {" D1 F, u' O
- return 0;4 ^/ M* l% [9 D1 h2 P# Z* h; F
- }
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