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。
. Y# l; J5 u# [2 m$ W需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>2 G3 e; R9 X* c
- #include <malloc.h>
* a6 }# L5 t( K) }1 a9 \! e - #include <sys/types.h>
. t% x' C/ d1 i8 c K) @ - #include <sys/stat.h>" {: z, A; ?8 ?; ^; ?
- #include <sys/ioctl.h>
2 m9 L( c: ?+ G0 P - #include <stdio.h>0 ~6 v1 o" O9 P
- #include <string.h>; z! I1 _% p/ h
- - O' W# Y: c# T6 L2 J
- typedef struct {
4 | O$ C: F' A% E7 U7 E6 m5 [1 H - unsigned int e2prom_cmd_sub_addr;; K' @2 ?* ~7 h
- unsigned int sub_addr_count;8 t8 z* d F1 O" S
- unsigned char* e2prom_cmd_data;
# W5 | B/ O D* Y - unsigned int data_count;6 H! O8 K+ ~% n$ m' p
- } e2prom_s_cmd;$ u! X, M9 U" J& N
- ! i4 q4 S+ c/ ~( h8 v( z3 j
- #define E2PROM_CMD_READ 1
8 u2 N+ i* y" E( Q# w7 S7 q. t - #define E2PROM_CMD_WRITE 2/ a" o& _3 Z9 `: h
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"8 L, K! I$ y+ C
/ j1 y7 h- a. E1 `" g: ]- static int readparam(unsigned char *mac, unsigned char *stbid)
5 X1 O6 E! D9 ~- i' \ Q3 l. r - {. K- v0 c/ ^' L1 W4 I. o5 y" p
- int fd, ret;
! Z5 L$ E# O0 X0 h. i' ?% l - e2prom_s_cmd arg;
4 c' g; U* P2 z& |3 o - unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);: T3 L' v' j; b h- O
- if (fd < 0) {
( \4 D3 Q/ ?, r; c5 r& Q* R - printf("Device %s open error.\n", E2PROM_DEVICE);
" `) h' z9 Q- `2 ] - return -1;5 p4 b0 ]' O/ k2 T
- }! I8 I. [$ v7 b) z
- arg.sub_addr_count = 2;9 ` E# n& o5 ~0 r1 t4 l" l2 _) _7 X
- arg.data_count = 0x18;
( J" w7 `3 E% N- Y! S - arg.e2prom_cmd_sub_addr = 0x290;
3 G6 s% h0 {. V+ A7 | - arg.e2prom_cmd_data = buf;
7 r, ?. H% d& [6 q - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
x1 L4 H X: F$ z) ^: J, F - if (ret != 0) {* K: N6 L% ^) G
- printf("Device %s read error.\n", E2PROM_DEVICE);
; O9 E; f4 r$ X; I( T# P' `+ \ - return -1;
- w7 ~3 V+ i9 t* f) m" B7 G - }2 d+ Y* g3 V0 S3 W, ?
- memcpy(mac, buf, 6);1 @' ?6 {4 R3 d: d, T1 h' a
- memcpy(stbid, &buf[6], 18);- C! G: k* _8 z/ K* b& W
- stbid[18] = '\0';8 u% }7 B0 V' c% P5 u) m! j
- . U7 f5 J; [" u
- return 0;- H2 ]# d9 l8 F0 b; q
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)6 E) a' M7 l3 l
- {, J- F$ f+ Y9 \: r
- int fd, ret;1 Q$ Q. u6 ^3 {& l
- e2prom_s_cmd arg;" P( @6 {# L# @; |5 f, H$ b
- unsigned char buf[0x18];" a! A( d; {( R& f
- 8 F4 B+ f2 e3 A1 A. f
- memcpy(buf, mac, 6);
3 {/ ?( r& U D) o b! A7 b* N - memcpy(&buf[6], stbid, 18);& u6 z6 @. {. B8 s! v- ~, A1 s
- fd = open(E2PROM_DEVICE, O_RDWR);4 }: d( e/ b4 b U8 J, s
- if (fd < 0) {
' n X4 c. g* S - printf("Device %s open error.\n", E2PROM_DEVICE);
% K( c, q$ O1 Z/ }" \ - return -1;
% n7 x n6 B. @3 H( ? - }* W8 }( R* ~& w
- arg.sub_addr_count = 2;
) }* O' n m4 v0 x1 x - arg.data_count = 0x18;
0 M2 Q. [8 d6 w2 A$ r - arg.e2prom_cmd_sub_addr = 0x290;% F+ R8 ~1 Q& }. x8 J) j% L4 V0 {
- arg.e2prom_cmd_data = buf;: v5 j5 Q: k7 R: J
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
- I5 w' o Q; y) i# z4 F- N/ v - if (ret != 0) {
$ [5 c, Z: G2 S! O( B - printf("Device %s write error.\n", E2PROM_DEVICE);
3 T, @% e+ P$ J8 G+ h) b7 M - return -1;
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- : g) [1 F$ b- ]! @9 x1 ^
- return 0;
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- , V# o1 U$ o7 ?; v q- }1 y9 w
- int main() _5 ~9 \$ r% k0 @( e# A& m$ T/ b5 z
- {
+ ?$ Y J2 q' ?3 o0 q, y/ b! s - char c;9 G x3 N' v3 n2 U# s
- int i, macs[6];" h" H( G) g3 a+ ~0 e4 l
- unsigned char mac[6];* t" b' d& F. L% l7 G# }% o* F8 J
- unsigned char stbid[256];. {& E7 @# n& p$ l" G
- : m2 f& R5 D i) k3 A j e
- if (readparam(mac, stbid) < 0)( {4 y! { a6 g9 p. q4 y: Y! _! g
- return 1;# ~" C; o! O1 \( G" U# g- p K
- 3 n; w& i2 [0 F7 @+ T& r
- printf("Current parameters: \n");/ x9 n' L1 K4 y7 P+ v+ d+ n
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
2 U2 s) c6 S* I% z/ U - printf(" STBID: %s\n", stbid);
8 a/ ?$ k5 n! h' H& P -
4 d' W* c; N! c7 Z0 C - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
* D, V. B& e$ D- M- @" e - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {8 e- u/ G/ S$ X8 A# Y+ s6 Q% {
- printf("Input MAC error\n");
! S& }, O/ e L" O5 M1 x - return 1;
: J. C; F h" g7 ? - }7 }8 B6 I. W$ i% P
- for (i=0; i<6; i++)mac[i] = macs[i];
* _, ^" q4 _+ o8 R& z - printf("\nPlease input new STBID: ");- B0 p8 l$ Y+ ^' c" s
- scanf("%s", stbid);: ]" X M1 \: p
- if (strlen(stbid) != 18) {1 X1 u2 @( R6 w$ v" M
- printf("Invalid stbid\n");. D) e" u% ?) w* S" b
- return 1;6 `5 O0 m- T* P) }# j9 R; h
- }
3 A7 q" x9 }( }+ A: k* \. I7 a - printf("\nNew parameters: \n");
1 v8 S+ F v( @0 L - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
7 j+ d+ ?4 F2 d - printf(" STBID: %s\n", stbid);
! o4 O+ {+ F) l. y
0 ]5 w3 N/ L) A- printf("\nDo you want to change paramemters? (y/N) ");! f7 j; C4 y0 S8 e' i, ]1 f5 \
- for (;;) {( r+ t: f% o. C8 u& ]$ L1 H
- c = getchar();
3 @% {% c e$ u - if (c == 'y' || c == 'Y')
$ d, d+ o l' n1 M/ Z. W( }! U - break;0 j* N5 t# T- S5 W
- if (c == 'n' || c == 'N') {
: z3 a/ `- B/ |# v7 S3 a" ?1 t - printf("\nAborted.\n");/ O9 a* N4 I' ^( d2 W7 {( Q9 \1 N
- return 1;7 j5 B/ c+ L1 A0 A) _9 n
- }
; A$ W, N* L# V - }
( E4 d Q4 u: @# h" T( X0 s$ a# b: A5 j9 _ - if (writeparam(mac, stbid) == 0) ( w S/ @6 F0 c2 X
- printf("Parameters changed.\n");
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- return 0;( Q- j, c5 p3 d3 n3 Z, n
- }
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