本帖最后由 0522 于 2012-3-21 23:04 编辑
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5 p0 I+ k- w( H. Q修改的代码早有了。到今天不会编译。
! W# C$ s$ A5 B2 I0 ] M需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
9 ^5 P9 e% j; \) \# O% L - #include <malloc.h>6 Q( m, B" ?( H
- #include <sys/types.h>
- t- Z+ o7 o7 I) f" N7 f - #include <sys/stat.h>1 c, C+ M+ B8 _: [, M
- #include <sys/ioctl.h>+ C& _, i" j& E( Q- J+ S8 a8 ^
- #include <stdio.h>; p5 n2 O4 \- r$ g
- #include <string.h> D1 o' j- L" R8 h4 {
- + a* l) N' `8 S' {8 A
- typedef struct {
$ m9 y8 N/ q! i# r: j2 } - unsigned int e2prom_cmd_sub_addr;9 X3 o/ ~. Q$ `0 T9 q; b: a
- unsigned int sub_addr_count;
( e, a# H4 w( f, q - unsigned char* e2prom_cmd_data;( `5 A$ d: r7 M) p; G7 o; v. M; p( Y" D
- unsigned int data_count;; \. d7 h+ {8 g8 {6 N1 b1 W2 R& O& k2 J
- } e2prom_s_cmd;) t, t( _# C. F( v
- 3 p1 |1 e& G) r; _4 _: b: s
- #define E2PROM_CMD_READ 1
, @2 o& P; g) Y" W& T; S - #define E2PROM_CMD_WRITE 2
+ u" U" d; J: S! k3 |9 C - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16" e1 a/ f+ X! W; r
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- static int readparam(unsigned char *mac, unsigned char *stbid)6 n6 m/ X% H. M3 x
- {- k8 }0 {+ Y$ s& I$ Z, |
- int fd, ret;$ d% n, T* z$ W' j) W
- e2prom_s_cmd arg;
# L7 {! f+ ~% k. M7 J% p" G - unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);) `' _/ y# ^7 H7 V2 w$ M
- if (fd < 0) {; Q H$ T, I; q$ @7 m! }* {' p5 c
- printf("Device %s open error.\n", E2PROM_DEVICE);8 q* A1 e7 s# J
- return -1;, t3 w, ~) \7 H3 S7 T4 Z$ D
- }
" j2 [ C- w" B1 k a; O( k - arg.sub_addr_count = 2;
& T7 j4 l8 T3 h+ x, Q2 K - arg.data_count = 0x18;1 U& ^( o' s: `
- arg.e2prom_cmd_sub_addr = 0x290;
[" W6 O2 q# I- S H/ r - arg.e2prom_cmd_data = buf;/ z* n5 E) Z2 |, m" }( G- b
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
( n; L; T( b$ d* @1 M0 q% n - if (ret != 0) {$ I5 A: ~3 k9 s1 d
- printf("Device %s read error.\n", E2PROM_DEVICE);
3 S, }/ _% z" z' a8 |4 ~ - return -1;9 x9 R* h) Q. _6 _
- }! I2 Z2 ^/ l8 n2 h
- memcpy(mac, buf, 6);
- T1 y; k3 ] v! {) @7 D- C/ c0 O - memcpy(stbid, &buf[6], 18);
. o% g0 e8 m# v! c1 A8 S - stbid[18] = '\0';
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$ V4 h$ u/ [2 `- return 0;
8 c0 n6 u. _3 S; L- ` - }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)! l( K8 F9 \! v8 g/ K
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- int fd, ret;5 e2 D. H. t8 }
- e2prom_s_cmd arg;& @1 y, E. j+ x
- unsigned char buf[0x18];1 p8 S0 L1 b- [1 p% T
0 E. r9 Q# O1 e3 N# ?+ p- memcpy(buf, mac, 6);
5 }2 @& W$ Q) E6 u1 T - memcpy(&buf[6], stbid, 18);
' ^- \4 n# S/ @9 Q3 B - fd = open(E2PROM_DEVICE, O_RDWR);
# e: T5 M) s! ] - if (fd < 0) {
) \2 ]0 z+ }; v# G - printf("Device %s open error.\n", E2PROM_DEVICE);8 l/ e F3 e" L( ^; z
- return -1;
& R! \/ q3 R) S* u5 P7 x& D, I - }
n% |( ]& i _/ f - arg.sub_addr_count = 2;& ]7 L* s8 U. ~7 V
- arg.data_count = 0x18;* s* x j; {% a: t
- arg.e2prom_cmd_sub_addr = 0x290;
$ N& B3 I. m! m! r2 P - arg.e2prom_cmd_data = buf;
: l+ N5 l' s+ T6 ]/ i$ z& i - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);& \+ Y9 j( H, |0 g$ G: W
- if (ret != 0) {
3 n' i+ C3 A8 J7 B2 V1 X - printf("Device %s write error.\n", E2PROM_DEVICE);
; ~7 B+ x4 k3 I - return -1;. w3 x. Q4 `; C
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- return 0;
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7 n z: V# I2 O/ y; @- int main()
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- char c;
, |- L/ p! l+ c! `' Z3 Q) J; j - int i, macs[6];# l2 S( m- o5 D4 s5 y
- unsigned char mac[6];
6 x1 \5 @, ]; Z - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)+ j" L# {6 D/ t
- return 1;
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' q {; @7 X( D" u: u) T- printf("Current parameters: \n");& S. X$ U/ x0 I& _
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
! s O% V0 g9 T* g& a4 e7 f5 M% _ - printf(" STBID: %s\n", stbid);
: b' V* m0 t% `$ T. A -
7 X1 w( J U1 t6 \6 D - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");- y, W% w4 p! C
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {4 J! z/ l3 n0 R3 {- r# k
- printf("Input MAC error\n");
3 g5 h) t% H' i, [+ T9 d' P6 G8 P - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];9 z& k9 _* y& h! Q5 c# S6 B; v9 C
- printf("\nPlease input new STBID: ");
( a' Z6 b+ w0 D6 L/ u2 \ - scanf("%s", stbid);. c8 u5 [/ N1 g6 V0 [
- if (strlen(stbid) != 18) {4 c% Z) H+ i, M( B# v1 {# {0 L: p9 |
- printf("Invalid stbid\n");4 @. Y" u- t0 V# R
- return 1;
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- printf("\nNew parameters: \n");7 y W( l+ {& Q8 |$ C: d; S" g$ i
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
7 B" }& P5 j# s5 a: R' }* l1 L - printf(" STBID: %s\n", stbid);
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B C0 m3 [/ h/ U" i* |! j& O- printf("\nDo you want to change paramemters? (y/N) ");3 c, b% w: |4 h& E
- for (;;) {5 ~+ W* S5 X7 V6 k$ F6 U
- c = getchar();
0 l" E3 X8 o) Y- _2 p! M- U- V - if (c == 'y' || c == 'Y')! ]0 d5 w- a6 @9 t V$ W6 G
- break;
* }$ @2 T1 D1 x" L. s" P W- k; x - if (c == 'n' || c == 'N') {7 T0 d) V B7 g# g( `5 N6 y
- printf("\nAborted.\n");
3 o7 M' {+ Z8 L* a- r1 M' g - return 1;
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- }
% m! E: i8 Q2 _- }! }0 `# X6 I - if (writeparam(mac, stbid) == 0) ; }( d& g7 d( C; d: P, {
- printf("Parameters changed.\n");
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- return 0;6 c" N1 l& W3 s# b Q7 _
- }
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