本帖最后由 0522 于 2012-3-21 23:04 编辑 ! B# z1 I5 s* P( `5 f v
+ x9 _' R0 x- K2 i: ]* ~* [修改的代码早有了。到今天不会编译。, l$ o; o @! k" N6 p
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>8 w9 h% y. H0 n' |. }
- #include <malloc.h>; I9 w7 {. h7 e. S' y0 t
- #include <sys/types.h>
9 V# K$ A! G, p; b# d: y/ |' S9 g) S - #include <sys/stat.h>
) e- t* V, ?4 s; E! \; E s& m - #include <sys/ioctl.h>
; ^) G, ?$ R, W/ |; e - #include <stdio.h>
' Q. o b6 c9 b3 q# K - #include <string.h>. K/ _6 O! d7 G
3 t. t8 a: v# `- typedef struct {; D7 K( F7 k$ B e z
- unsigned int e2prom_cmd_sub_addr;2 @& U& o# F- b* a7 T
- unsigned int sub_addr_count;6 X: R6 b7 N: s# b9 _2 {' ]
- unsigned char* e2prom_cmd_data;
" v1 K3 A! H+ o% u) D) @; v - unsigned int data_count;1 [' V5 q% C) ?' E
- } e2prom_s_cmd;, w# ~% A7 \. q+ S9 D2 _
- 2 g2 }: X, t% I8 u
- #define E2PROM_CMD_READ 16 }1 ?% h; O9 D4 a3 q# i) e4 C
- #define E2PROM_CMD_WRITE 2
' _8 O( c7 V$ F T; Q! }: F - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16", S' x. ?3 b6 K, N* G
& `( Z9 {- O" p r5 }- static int readparam(unsigned char *mac, unsigned char *stbid)2 q+ x& c% \( U) I
- {
2 a8 c. W4 y4 M L; O5 P" ^. o - int fd, ret;
" M \( w* s) [ - e2prom_s_cmd arg;
$ m) T- B) Y6 b* U - unsigned char buf[0x18];, K$ Z- u7 h( o# Z& g6 I
/ b; y& C9 A+ n d* Y' p- fd = open(E2PROM_DEVICE, O_RDWR);1 W; r6 J. p2 }* i2 u% c' l/ A
- if (fd < 0) {
& Z. K5 j/ n* \; y3 S, i - printf("Device %s open error.\n", E2PROM_DEVICE);8 r/ N/ I7 S! K
- return -1;
' X/ }$ o# q& x& x+ N% Z( k - }
% N2 b' l \& ?5 D! [8 y/ R - arg.sub_addr_count = 2;
% L# Q1 w2 F+ N4 e - arg.data_count = 0x18;
+ N. M0 J+ I; X- | - arg.e2prom_cmd_sub_addr = 0x290;
, Q+ R7 ]' ]% D& h1 i - arg.e2prom_cmd_data = buf;
- J" g5 i, u: I, u1 Z% s0 k! U - ret = ioctl(fd, E2PROM_CMD_READ, &arg);$ C3 Y# a3 v/ N. q4 O
- if (ret != 0) {
4 n' s; w: P- z8 t - printf("Device %s read error.\n", E2PROM_DEVICE);
4 p- E2 y7 v3 Y6 f+ r( v - return -1;* _: K( ]( M( h& ?4 H
- }# B" {/ V' D4 _2 p: C. x3 Y
- memcpy(mac, buf, 6);# k( V5 F! {' V+ b# j
- memcpy(stbid, &buf[6], 18);( J. ?8 Y! H* ]) `
- stbid[18] = '\0';
- Z7 F* O1 u9 f$ {
- Y: z6 I" |- n: M" K. `. i- return 0;
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- * @/ O: V8 H" Q. F f' G. P( a
- static int writeparam(unsigned char *mac, unsigned char *stbid)" W. P3 M! o' V) S& P
- {8 e+ ~4 {3 `# R Q4 Z
- int fd, ret;
, P, q, y9 N' H - e2prom_s_cmd arg;1 k7 ]3 @5 A2 h4 p' b5 b
- unsigned char buf[0x18];
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- memcpy(buf, mac, 6);7 ]5 F7 k0 k# f0 M* G( ~
- memcpy(&buf[6], stbid, 18);
$ p: H! ~2 x$ N) }& q2 m( Y - fd = open(E2PROM_DEVICE, O_RDWR);$ {3 \/ _- q% G8 a# x( a" w% Q6 F
- if (fd < 0) {: I; z# n$ x! `
- printf("Device %s open error.\n", E2PROM_DEVICE);
z9 h1 a% [2 G - return -1;
2 ?7 L3 y2 j# v* [" q9 @( z& m5 B - }
8 T8 c' j$ K) Y' K& i - arg.sub_addr_count = 2;
' x- q; Q7 h, _! D4 f7 |$ o - arg.data_count = 0x18;
- ?& i6 N) X- ~1 f; ] Y - arg.e2prom_cmd_sub_addr = 0x290;
" _! u: a9 A6 ~& e* l - arg.e2prom_cmd_data = buf;, \2 u {$ {. R1 i1 A/ ^
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
A% g7 r( R0 ~8 q- J - if (ret != 0) {3 G6 _8 t, p& c1 t
- printf("Device %s write error.\n", E2PROM_DEVICE);$ c8 f% y/ c. _/ t/ ~- `
- return -1;; V7 [( o' _4 s! ^; T k
- }
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- return 0;9 X( H+ O+ b+ A) \* c& e; S
- }) M6 _& L B7 R1 V
1 S, v g, l3 R% W3 s; X/ n- int main()3 T, q2 k2 M8 i# o9 I* h2 [
- {
1 H3 r0 ~' t. }. c; ^1 t; ? - char c;% P L: q, E {- {3 T' R( k
- int i, macs[6];
+ d" a) P t8 {) i - unsigned char mac[6];/ V1 P4 O3 x* i! z; N
- unsigned char stbid[256];- P% `+ n7 x5 A& s) y1 Q
- , v0 W9 z+ c9 G# A7 M3 p
- if (readparam(mac, stbid) < 0), _/ Y& w; I9 o7 A, S) t
- return 1;
2 v+ Y' B7 k% h8 k* \& i; n- H
2 [4 }7 L z) x/ l) j4 j, |( g- printf("Current parameters: \n");# }. |5 p6 N* S3 \
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
: D8 Y, F& _1 V1 l( E - printf(" STBID: %s\n", stbid);
" F- y# L. I: I h - % A" C# B* X2 w- d7 S
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");7 @0 ]% J2 l1 ~; g% f1 ?! a2 R
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {& d4 u- |. k$ ?* z+ P1 k
- printf("Input MAC error\n");" ?& L5 N7 D2 q5 ?- k+ K4 y
- return 1;+ A* B; {4 t! a- G; D! [" F
- }4 A* U2 K: R, `
- for (i=0; i<6; i++)mac[i] = macs[i];5 g1 T" P! h& a S* z/ M
- printf("\nPlease input new STBID: ");% B+ Y3 a0 [0 F) X- K' q2 Y6 z
- scanf("%s", stbid);7 V' k/ D& q) t8 k/ u
- if (strlen(stbid) != 18) {
8 s# x( b$ T6 q: I9 n; L6 J - printf("Invalid stbid\n");$ m. \5 l9 a! U9 ?
- return 1;+ m& J) w9 o/ m i8 l
- }
% F3 \6 p \/ l - printf("\nNew parameters: \n");& j8 j, f% }: X. ?
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
" E6 Q8 _* f5 {9 r+ E - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");0 t+ P* H2 s" p4 b' c
- for (;;) { [% R9 F. {8 r
- c = getchar();
3 X# K: ~/ q4 \+ k. H6 [0 ^# m+ \ - if (c == 'y' || c == 'Y')
8 ]" A( L9 l# U# y: I+ K - break;; ~: L/ |4 y6 o- ?
- if (c == 'n' || c == 'N') {
/ O5 {. R7 A+ {" r! u: V - printf("\nAborted.\n");, }- n$ w) |- }' B; F+ E" }* J3 o- o* o
- return 1;
" A# ]; `7 b. g+ u. o6 l } - }. [8 ^. E9 F, y) C' k
- }
1 q# F0 S1 K0 i - if (writeparam(mac, stbid) == 0) ( m b$ i/ E* Z1 X
- printf("Parameters changed.\n");
/ h9 {, P. i& F0 ~1 _
2 c, H+ V# r& C( ^ v2 x$ t- return 0;
# B8 v% Z* t1 U# e% @" B9 u - }
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