本帖最后由 0522 于 2012-3-21 23:04 编辑
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修改的代码早有了。到今天不会编译。+ F4 ?) z( v5 F Q& ^7 O
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
% D v& f; `5 ]: V5 X - #include <malloc.h>/ P7 Z0 x ?0 E+ p% Y) x! m! q. R
- #include <sys/types.h>: {2 A* X' [7 G' q/ Y& [
- #include <sys/stat.h>
& y* R I4 j8 b, a [' ?+ \ - #include <sys/ioctl.h>
0 W7 K3 s1 I9 E - #include <stdio.h>3 Z1 u1 w- a3 B7 U( t
- #include <string.h>) y6 I5 P9 e# b
- ) O$ I/ T2 {" k" I ] g
- typedef struct {- O5 o# U" g: f' O! x" ~1 V
- unsigned int e2prom_cmd_sub_addr;
' E$ _% u/ A8 n" m* f. n* P3 {" H# j - unsigned int sub_addr_count;
, [& X, @5 A! r# E; V% b& p1 L - unsigned char* e2prom_cmd_data;( r4 w! x- f( O4 S3 i% y4 S( w/ i
- unsigned int data_count;
5 a- g c* X5 t7 t# v - } e2prom_s_cmd;: e6 K4 l9 A9 ]4 T1 P1 }! d
4 f) g4 K# f0 z# I& k( N6 K9 E- #define E2PROM_CMD_READ 1( A! N2 [. }7 F& ? H; J. [; }
- #define E2PROM_CMD_WRITE 2
# V) x/ q/ j# M - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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% M, o5 S2 k0 ^2 V3 N% E3 E+ a- static int readparam(unsigned char *mac, unsigned char *stbid)
- ^6 ?% i" a! J2 `. l* i - {
) k }4 \; o) m+ v8 F% L - int fd, ret;. z8 k& ]7 E$ y7 M
- e2prom_s_cmd arg;
7 n4 }, j+ i+ L/ l \5 H& W - unsigned char buf[0x18];
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+ T @* ] [+ a j, y( }- fd = open(E2PROM_DEVICE, O_RDWR);# _, I1 Z* K7 R% X, I! l% A6 j
- if (fd < 0) {
. t' @" `' T* C7 D - printf("Device %s open error.\n", E2PROM_DEVICE);4 P* L" J: v) k* o
- return -1;
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- arg.sub_addr_count = 2;- `0 C# Z5 K# [+ e8 q6 z8 D
- arg.data_count = 0x18;2 N! }- f6 C0 L! B- o6 g
- arg.e2prom_cmd_sub_addr = 0x290;9 G& r# l$ @- k! D* b
- arg.e2prom_cmd_data = buf;+ }* p. _. [7 N9 u7 ]/ {
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);# X% r' M5 m; v) t' \
- if (ret != 0) {' y# s8 c+ M- Z4 ]
- printf("Device %s read error.\n", E2PROM_DEVICE);: Y$ ]1 \ X7 ]
- return -1;
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- memcpy(mac, buf, 6);( ~% s* `9 w* \+ O; J; [) ~9 g3 K
- memcpy(stbid, &buf[6], 18);! N. e j# e7 L8 x
- stbid[18] = '\0';9 a7 U1 u1 _( k" l) p2 |
9 h/ V; }& Y- d4 I6 h; t' _6 j- f- return 0;" H" T' n2 ~; p2 }0 c; O8 r- @) F. |
- }
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5 b; y6 ~" ]8 v0 R! {- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
1 e2 ~/ ^) b8 b! c' ?1 w! s7 } - e2prom_s_cmd arg;
# {% z4 s+ |0 e# [- |$ } - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
- H: V' H$ ]8 B# W/ N - memcpy(&buf[6], stbid, 18);9 [+ `+ l3 j/ B! _- A' {" b
- fd = open(E2PROM_DEVICE, O_RDWR);9 _, c" o x& e! l
- if (fd < 0) {
& X |' W! Z$ u- W. k% q W - printf("Device %s open error.\n", E2PROM_DEVICE);
4 I: ~* n) W: Z4 L - return -1;4 n4 E- G0 }/ y1 ]6 c1 ]
- }( k7 ~+ O- F9 a
- arg.sub_addr_count = 2;
/ D' {1 d9 O) ?% n: T. U - arg.data_count = 0x18;
2 ^9 M# \+ n; a+ a' p - arg.e2prom_cmd_sub_addr = 0x290;
V2 g8 f9 }8 e - arg.e2prom_cmd_data = buf;
E8 n# l6 ~& C8 W - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
- u, M0 g, W/ l6 F2 }, m - if (ret != 0) {
1 \+ g2 V3 C6 N! t& C! K - printf("Device %s write error.\n", E2PROM_DEVICE);" c: j/ D! c! `) d! y& F7 [
- return -1;
8 N9 v' a& r% S; G; X- z$ z0 J - }
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- return 0;
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- int main(). M+ r# J' Q) _
- {5 ]4 R# G: `% h6 {6 V `. \
- char c;
7 j: ~" a2 [& @; u R# m - int i, macs[6];' |3 ?! l& B& |1 {
- unsigned char mac[6];6 N' i* N8 z( t0 }
- unsigned char stbid[256];+ Y0 D' a e- ~4 S) q* u
- & L1 a# |( v4 P
- if (readparam(mac, stbid) < 0)
7 ^" _) w5 B5 B. g6 S. f - return 1;
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- printf("Current parameters: \n");. Z8 S5 [& {: N# t6 U& a4 Y3 p3 ?
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
5 r( \, I; B' ?) P. B - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
4 y% N) d% x6 u$ s' ~ - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
2 H; d& I) k; g5 a+ `/ r - printf("Input MAC error\n");
/ G. F0 F0 M) H6 S7 }9 D - return 1;$ m$ V4 H- Y. e
- }
8 v/ i- i" u+ Y$ A+ M# z; C, @ - for (i=0; i<6; i++)mac[i] = macs[i];( \' O* y, i7 M1 \0 B
- printf("\nPlease input new STBID: ");, L( I' R6 H+ a3 l" ]
- scanf("%s", stbid);
/ z$ p% x& k- R# b) A# b+ F! U - if (strlen(stbid) != 18) {
% P! X. y+ N8 W% ~& ] - printf("Invalid stbid\n");
) k% N S! v7 h3 i6 y7 q) L; J9 Q - return 1;$ n: i' ^7 J( R2 \! M1 |
- }
. c) t0 _2 W$ a- u8 J - printf("\nNew parameters: \n");; x1 E: @# k$ x j1 l4 \
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);7 s. a, J6 z' z; {5 E9 v/ @5 c
- printf(" STBID: %s\n", stbid);: t; h; o7 F5 L9 l$ e5 v
. ^0 a- f$ w4 I" T2 M- printf("\nDo you want to change paramemters? (y/N) ");
4 k! x b5 \- b' W) ~ - for (;;) {- A- `4 d! w( Y$ K( G5 ~8 J
- c = getchar();
) Y6 j; N+ Z9 n( n. Q - if (c == 'y' || c == 'Y')
' s& h4 s7 A( I# d! Q) e/ w - break;
8 V" Z( G8 T3 \& D0 ~ - if (c == 'n' || c == 'N') {
! f4 n' w2 _" q2 l - printf("\nAborted.\n");
- Y: L- f$ A( W1 @5 @+ y - return 1;3 Y- {; B2 f3 I
- }
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- if (writeparam(mac, stbid) == 0) * z) N3 P. G& }( X
- printf("Parameters changed.\n");. t. R" [4 x" e: m \9 H" s6 D
! Y8 w% N& S4 Z5 {* ^- return 0;
/ Y+ }5 t9 K" o2 M/ R) r% h - }
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