本帖最后由 0522 于 2012-3-21 23:04 编辑 $ Z& b/ C5 @' o( W
' X) Z* L0 R H/ I& I修改的代码早有了。到今天不会编译。
) r! g" V- [/ g O3 X" y. D; f; B% e需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>" `2 g2 x( a* `1 K2 F
- #include <malloc.h>
- X$ {, M [" U' u5 \ - #include <sys/types.h>$ M, ^; p) y8 k& J
- #include <sys/stat.h>
" O O [% o! q$ Y, c - #include <sys/ioctl.h>
" c* H! q0 z% w) n- } - #include <stdio.h>1 S8 B( v0 ]7 u6 h+ b8 v! c. _
- #include <string.h>
* J( V9 I- l% r3 J$ ^
+ @+ q. C/ _! P4 W$ R- typedef struct {
9 I; l, R& @/ X$ m - unsigned int e2prom_cmd_sub_addr;! t( i5 G0 W5 } C3 o* s6 q
- unsigned int sub_addr_count;( A8 u5 w% E: ]2 _
- unsigned char* e2prom_cmd_data;
* k1 L, C! {) W5 C$ l - unsigned int data_count; d' \+ \0 R( E. l8 i1 n) M
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1" ]5 U j# U w* b5 j" B
- #define E2PROM_CMD_WRITE 2& A* ]" p4 `5 d7 S- x" s
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)/ @9 [+ @8 p: n: p
- {' s! t/ O: E% t, Y
- int fd, ret;' t; q. H6 T9 _2 |
- e2prom_s_cmd arg;
2 j" a* z& K5 v O. o2 B - unsigned char buf[0x18];" Y* t D7 u6 x& ~
0 J* B: i. L6 C: h& _- fd = open(E2PROM_DEVICE, O_RDWR);. l [! D5 i0 @$ f
- if (fd < 0) {* W; k' y' B [ ]
- printf("Device %s open error.\n", E2PROM_DEVICE);; u0 Q; Q& L# b3 ~; g# ?0 y# ^
- return -1;
: ]5 @+ }8 R$ Y$ f! V U1 f& Q5 R - }
1 U& \$ g9 [7 I+ L4 H - arg.sub_addr_count = 2;6 `/ t" W; V6 s1 b4 L
- arg.data_count = 0x18;* b5 t( I$ T1 f. O. q- J, Q
- arg.e2prom_cmd_sub_addr = 0x290;
Y" s! d, ?$ Z ]: T( m/ _, o! K5 [& y - arg.e2prom_cmd_data = buf;
: m7 M6 ]) R9 h* N5 S4 d- X( V - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
6 O5 |0 Q+ D5 ]; J! C - if (ret != 0) {$ h6 A7 w) N, E7 I' X& F" q
- printf("Device %s read error.\n", E2PROM_DEVICE);2 U. e+ o F: a& P
- return -1;2 W# E* C u+ x9 G
- }3 W7 j* |: |& T0 c9 X! W
- memcpy(mac, buf, 6);
4 b$ P' c# f* g8 y - memcpy(stbid, &buf[6], 18);2 p' D( `7 \' L* Q, j
- stbid[18] = '\0';
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; [$ ^5 U$ Q, H/ c0 z4 e) k- return 0;
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- 0 |# Z: v5 Y- c$ G5 V
- static int writeparam(unsigned char *mac, unsigned char *stbid)7 i6 t; X: S& P% k
- {# i$ B9 w2 \9 j' m. f. E3 |( |
- int fd, ret;4 I8 r. V2 t' J1 r' F: |& y9 ` L
- e2prom_s_cmd arg;
# \+ t d; m4 v( y) }; n- }6 W - unsigned char buf[0x18];5 c- N6 t, |6 r) n2 |
& K# [' n' Z2 Z2 r! j0 E- memcpy(buf, mac, 6);
6 J0 c7 l* G( o" ^ - memcpy(&buf[6], stbid, 18);6 q6 W- L7 W( {0 j/ {- {& n
- fd = open(E2PROM_DEVICE, O_RDWR);; w' _$ N4 T9 g$ l$ J
- if (fd < 0) {
! B1 @' V( G. a: |& v - printf("Device %s open error.\n", E2PROM_DEVICE);8 L2 O, j) K; B- w8 H
- return -1;
" \* a, `2 F) T% k, |4 ?6 T - }. g8 C) r7 C" y6 r0 s1 T
- arg.sub_addr_count = 2;
* p6 A" j8 Z9 o( e, x1 M E1 z7 Q- W - arg.data_count = 0x18;! k4 x6 S) k2 I7 c# R
- arg.e2prom_cmd_sub_addr = 0x290;
8 ^. e) Z* D: ?. V, V$ N. o - arg.e2prom_cmd_data = buf;8 N$ J% w4 O; x* {9 f, {( A+ y
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);3 C: K% ~' c$ r
- if (ret != 0) {1 V$ F) Y! v Q9 M) U! h
- printf("Device %s write error.\n", E2PROM_DEVICE);
- Y, D/ b# G. N- `2 T3 d - return -1;$ R6 a: y1 J$ V+ \1 x# r$ r
- }
" }' y* f: D7 L; `
) E. Y0 P, l% v1 }2 G7 Y- return 0;
- Q, R; L$ \5 ?' Z+ h - }* p: i0 a" D' O0 R# a* T
$ M8 E3 v/ o# E- int main()
5 l0 D+ y& a/ h - {
' i' t m! q* a8 W - char c;
$ U2 S P0 C, Y& I: L) K - int i, macs[6];5 u1 M3 b+ L, P6 W$ d
- unsigned char mac[6];
' s$ }7 H0 z- O5 [, M: b$ ?% b - unsigned char stbid[256];
. `& r3 z: m5 X) f3 u
1 T4 S6 O& Z2 P3 D4 J, W4 q& c- if (readparam(mac, stbid) < 0)
# v: i" p7 }+ a - return 1;
* q% q5 m2 V3 Q' A# J& F9 \
1 p$ A: Z$ G" ]1 r: D) {- printf("Current parameters: \n");
* _& p( _# Q4 m. U- z - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
1 d2 o, n6 I0 K3 F5 b( { - printf(" STBID: %s\n", stbid);
: v" x1 B' }& M0 u1 c - $ H. S4 l' P0 x, L( U' b
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
( i. |) R/ p% Z4 e - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {! e/ @5 I' }$ k* z: Q
- printf("Input MAC error\n");
; r! R: z$ y# R' V8 d! b - return 1;" K& `, G2 p" q6 D
- }
/ w/ ` ^* w9 H* O" l% v8 I( Z( F - for (i=0; i<6; i++)mac[i] = macs[i];" M2 b* A+ ]/ ]! ], M! Z
- printf("\nPlease input new STBID: ");( }# S3 j2 ] Q' L: T' |
- scanf("%s", stbid);
' q# ?% Y' ~, u, E: f/ C7 m! n - if (strlen(stbid) != 18) {
1 Z0 L: W1 v) Z$ j; H - printf("Invalid stbid\n");
7 O, l' ?) q: z5 J% Y, y; V$ n - return 1;" V1 _) ~9 J" s; s
- }0 K2 A+ b/ }9 g6 a" q
- printf("\nNew parameters: \n");
+ E z3 O; @# I. F - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
2 Z, ?' h- m4 {- f - printf(" STBID: %s\n", stbid);% _3 ? `4 X! k1 T6 Z" U9 s* \
- 3 K( U7 h; v' j0 Q' a" t
- printf("\nDo you want to change paramemters? (y/N) ");. p# V- C; H9 J5 H$ o
- for (;;) {
: ]3 p) Y/ C7 k' l - c = getchar();( W% O- B0 [3 E1 t% U- g
- if (c == 'y' || c == 'Y')6 |2 v5 w* o2 V* q! F
- break;4 ^2 [5 W) R Q' @ p
- if (c == 'n' || c == 'N') {
0 F# @! T) s/ u1 c4 q* q - printf("\nAborted.\n");
" y7 |6 N3 |8 w: g8 [+ n - return 1;! n1 c' j- w. w6 n9 w) b4 G
- }5 B B: p3 ?2 H( }4 e3 A& [+ T' \
- }
& V: M: {3 G* r! x3 ?; b - if (writeparam(mac, stbid) == 0) " I6 E" D: H% m! o5 k
- printf("Parameters changed.\n"); Y. H% H) p( C+ Z! ~( p
- : G7 L. q/ ?" y/ G
- return 0;
7 ]# e J6 g: D f7 K- A4 O - }
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