本帖最后由 0522 于 2012-3-21 23:04 编辑 " [/ R5 t' j$ N. K
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修改的代码早有了。到今天不会编译。
; c! N4 I: }. _1 ]- i9 ?需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
$ a: d1 z- q6 E e - #include <malloc.h>
. H8 e) R3 h( W% g2 D2 ^7 o' i - #include <sys/types.h>
( E8 H! Q& ?6 Z) ~8 ]+ H% [' Z, }# ~ - #include <sys/stat.h>
" ?# ~0 u( I& A, E/ a$ E; a% g: H - #include <sys/ioctl.h>
2 b! e2 D3 b% s1 Q - #include <stdio.h>
. v$ u: V6 Q6 }! ] - #include <string.h>
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- typedef struct {: B6 |1 F5 i M) \5 r7 N
- unsigned int e2prom_cmd_sub_addr;8 N- m) o( B6 t3 U, @. r2 e }
- unsigned int sub_addr_count;, F% i- J0 m0 V, Z: k5 v
- unsigned char* e2prom_cmd_data;
S% f, ^- E; r2 j2 b9 c$ V3 `. h* E - unsigned int data_count;/ f6 `0 E9 r' V9 y( {9 A
- } e2prom_s_cmd;
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) p( z4 m7 R5 n6 n' E% g+ c- #define E2PROM_CMD_READ 1' z* H* g5 q/ Q6 ^* ]1 @
- #define E2PROM_CMD_WRITE 2
' [0 X4 p8 C0 j0 w1 Y - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16" X% @, _: E/ o+ \ N/ v" j
/ f; i" {; p. V% I% f8 @; l% {; f& I- static int readparam(unsigned char *mac, unsigned char *stbid)
% P; b- B: u; g* T - {
; ]& q- _ l" ] - int fd, ret;
% |# a$ N' b9 ~6 Y% O# } - e2prom_s_cmd arg;0 h* W) J8 e' _5 X! y7 | e+ ~
- unsigned char buf[0x18]; q1 o2 F; u* o ?# X8 S
% ?: m( b4 r5 B- fd = open(E2PROM_DEVICE, O_RDWR);) _8 K' u3 B8 R4 U- M* K! n. C$ E
- if (fd < 0) {
4 v' y2 }2 X; x) Q- Z - printf("Device %s open error.\n", E2PROM_DEVICE);2 s5 P' J% y2 t* f
- return -1;( l/ x: P3 n! Y. q( W) V7 V
- }
9 p, J/ k- _ H& f7 j+ M# D - arg.sub_addr_count = 2;- k/ _* \/ _9 \
- arg.data_count = 0x18;
/ G8 y- a7 j) N, s - arg.e2prom_cmd_sub_addr = 0x290;: `( f9 Q3 ^, F; o/ z0 P+ \/ L
- arg.e2prom_cmd_data = buf;
! d6 |: ~3 O, v1 h" _+ h - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
; P3 w+ a- g ?, S; B - if (ret != 0) {
, d4 ~7 g$ p# Y) \! e, E6 j - printf("Device %s read error.\n", E2PROM_DEVICE);5 F. F% N! O' k7 F4 x! G
- return -1;
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- memcpy(mac, buf, 6);
8 l7 p x7 a" N7 B q$ k - memcpy(stbid, &buf[6], 18);7 R8 K9 n2 J- f; n
- stbid[18] = '\0';
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- return 0;% w. T" H& b. B. ], G
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)1 c: d+ [/ u# @+ `
- {
- w0 |! R5 j+ _6 i# k% d - int fd, ret;
, c2 Y. T7 m2 z! ~2 V; m/ e - e2prom_s_cmd arg;
' _ W3 G5 ~& g3 X/ \, e2 {4 m2 p$ T - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
/ x! C4 s: I( S! J4 b - memcpy(&buf[6], stbid, 18);! {/ K9 I' N0 O* C
- fd = open(E2PROM_DEVICE, O_RDWR);9 F/ S5 _/ ^3 g* } X
- if (fd < 0) {
# f7 t1 L/ p& [( E - printf("Device %s open error.\n", E2PROM_DEVICE);
' U/ x/ Y+ `+ }5 F - return -1;
! y7 s6 E1 @9 j( P5 { - }9 c$ v) O2 J, X( P+ V5 ]
- arg.sub_addr_count = 2;
' o1 C+ E; g, s5 G, m - arg.data_count = 0x18;
$ l7 [6 M; V5 z, c; l( t& I- T - arg.e2prom_cmd_sub_addr = 0x290;& g Z6 D5 j. L$ D
- arg.e2prom_cmd_data = buf;
. E; s, H0 H+ B$ v, K% Y* k - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);' ]. e1 l8 {5 t V# [
- if (ret != 0) {" L8 Q: K: Z2 h( s
- printf("Device %s write error.\n", E2PROM_DEVICE);" Q3 A+ n7 U& t* ~, q9 U+ {
- return -1;, W5 V O% L4 r' e& `7 A
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- 0 ~5 Q( D' Z* g. e
- return 0;$ L# x+ \, f9 l' c! y# g: Y* w
- }
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1 [5 ~% z! B" J- int main()) V' h: Z; g: W; ]
- {; L' j+ [2 @9 y) M0 h3 m/ w4 s% e3 E
- char c;
3 h! H2 S% c, D$ Q - int i, macs[6];3 n, q1 U( e$ u0 ]) d; z& I, H& w2 S
- unsigned char mac[6];
$ l) D1 c( H6 G - unsigned char stbid[256];3 [. h! c! R/ x& Y3 A
* [8 \% t& K* T: m: I9 K- if (readparam(mac, stbid) < 0)
& a0 C. a9 O- `; V" A# E - return 1;
1 ]# F$ n% G! |1 Q+ e; t' G - ) h* j+ t7 C/ {
- printf("Current parameters: \n");
4 z8 Q5 \' R0 m8 t7 J8 t' c8 q' L - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
9 G. M9 l% L# q$ G- d5 \0 O4 R - printf(" STBID: %s\n", stbid);: @$ f3 ~, [4 k+ q: G2 S
-
1 L# ]3 J- o) T' D - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
9 \. [3 m# H1 H' Z8 a6 z" q - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {/ `7 Q6 @- ]5 S. w+ K# a% g4 ^4 b
- printf("Input MAC error\n");' B$ y5 w; q" r# h' r s% L7 y& j
- return 1;
! F! Z# m- F) \ - }
+ H! Q1 N( z& Y - for (i=0; i<6; i++)mac[i] = macs[i];( _3 i4 ?; b+ `, S& U) n
- printf("\nPlease input new STBID: ");
4 u5 L8 i1 B: k7 r/ w9 x - scanf("%s", stbid);8 Y, h/ P& ~* Q: q2 |: p0 P* r* c
- if (strlen(stbid) != 18) {5 A+ n8 G& g( _& }- @
- printf("Invalid stbid\n");
9 t. n9 ~6 \* d% W/ _8 g* t - return 1;2 c% G/ l8 n/ f6 S, J' O
- }5 C8 `, u7 G) W( ]8 g
- printf("\nNew parameters: \n");- F$ R! b8 `) R5 Y
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);9 N$ z8 n" T$ S7 b0 P# h
- printf(" STBID: %s\n", stbid);
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9 I) e9 L& S5 D- printf("\nDo you want to change paramemters? (y/N) ");
$ h/ c# {( p* j' g# \ - for (;;) {. r( l$ q2 g0 C; L! t
- c = getchar();# g8 X+ A2 l# J6 O4 R
- if (c == 'y' || c == 'Y')
# e$ y: h( M. x7 _6 d( {3 R' b - break;& d* ^" U3 X+ w
- if (c == 'n' || c == 'N') {$ S2 b' U F8 [! ]% [$ M
- printf("\nAborted.\n");
+ w6 |0 O! }1 b6 Q/ _4 x9 B8 h - return 1;
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- }
& G) D* U9 ]) E1 S - if (writeparam(mac, stbid) == 0) " o" {5 X6 J0 g. T ]% r: u
- printf("Parameters changed.\n");
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" s# j1 R6 U, {6 x8 q2 j/ b& P& k- return 0;
0 n& R4 f0 N0 C' P - }
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