本帖最后由 0522 于 2012-3-21 23:04 编辑 ' v/ p( _4 L* l& a" R
/ l0 ~* C. i: \( }$ m; L1 M7 G修改的代码早有了。到今天不会编译。1 h; r+ P$ ?/ z! @* J6 Z. b$ i6 v- E
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>. h+ W) U. P! j+ T) m9 S
- #include <malloc.h>: x m; q- S+ J& B- m
- #include <sys/types.h>4 o# Q1 v" `. Y1 N x* u. n
- #include <sys/stat.h>
2 h& O" m- D I8 @& r - #include <sys/ioctl.h>
, W3 J/ f% A6 |! E - #include <stdio.h>
4 K/ ]4 q9 ^ a8 ?& V - #include <string.h>" p/ v2 g9 B3 D
- 0 R j) _& ]" K3 Z& ~1 s. U! r, R
- typedef struct {6 R: X, Z3 y- H4 q$ B
- unsigned int e2prom_cmd_sub_addr;
% R3 o% ]2 g p& W) W$ i - unsigned int sub_addr_count;" o7 V( t# K1 f7 Q% q. T: C
- unsigned char* e2prom_cmd_data;: v. R! l$ g- x# u) v7 T
- unsigned int data_count;
' j0 N' Y5 _2 ^ `; A8 Z - } e2prom_s_cmd;
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, P6 Y; n* n7 b7 G/ l- #define E2PROM_CMD_READ 1
, F3 P1 L1 H$ Z, O - #define E2PROM_CMD_WRITE 2' k* y1 D" p( T7 N, F
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
- y6 A+ d% v. [4 } - . L* D* b+ Y5 n9 Y- D! [/ f/ B
- static int readparam(unsigned char *mac, unsigned char *stbid)! j. a2 R; Q' r3 @! V& P
- {
) P: Q- G0 M4 q6 S - int fd, ret;
3 i/ I/ f' @& Y: ~4 O6 q - e2prom_s_cmd arg; W. ^; w( w( p, R, P! z( m# O
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);' a! [( s" r* S' q8 x# n4 g
- if (fd < 0) {
. ~8 q& J; k P - printf("Device %s open error.\n", E2PROM_DEVICE);
1 l5 O6 i4 M& j/ h" N - return -1; I. n" o, M$ b( J3 J3 @
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- arg.sub_addr_count = 2;% ]6 W0 F5 R) c! P
- arg.data_count = 0x18;
) j6 j# j. @3 J( F4 L - arg.e2prom_cmd_sub_addr = 0x290;
8 W. \" j( m8 q6 q - arg.e2prom_cmd_data = buf;
# p* Z1 |+ h4 Y$ s - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
8 C* _. z7 M- f$ q8 F/ O - if (ret != 0) {1 }! G8 z9 n$ L: R+ [: k7 D" `- C
- printf("Device %s read error.\n", E2PROM_DEVICE);
4 }' R. L/ f& a- s0 Q) R - return -1;# I- Y+ y8 W# S1 D' e7 _
- }
9 u$ S, ~# P/ V0 b. G0 z - memcpy(mac, buf, 6);
R, a0 t* W* f; z4 s1 L, W - memcpy(stbid, &buf[6], 18);* K$ X0 E- w+ k" P# `4 i
- stbid[18] = '\0';0 f( r% Q, B, _3 d( V7 q- |
, M7 _. {/ c4 x! ? D' C- return 0;
5 A. j+ C5 b& x: H( q: p - }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
' v' T# \4 k% t3 Q" {3 B( y - {3 x/ `( b1 D% I! _6 M* T" \
- int fd, ret;
& |4 Q7 X% d# N9 D - e2prom_s_cmd arg;0 i& I# O# g0 O: \& Q0 u5 A+ t) p% J
- unsigned char buf[0x18];
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; h# Y6 |: N) n. f$ S* E( g$ [- z7 o6 ?- memcpy(buf, mac, 6);" C' Y! ?2 E5 W5 l1 u$ C. l {
- memcpy(&buf[6], stbid, 18);
9 \. w- X! h8 w3 S, S - fd = open(E2PROM_DEVICE, O_RDWR);7 v$ t, l H9 P1 j: B6 K9 H
- if (fd < 0) {
6 I/ D6 p0 Z9 F; e; U( u) o" _) ]2 a9 V: | - printf("Device %s open error.\n", E2PROM_DEVICE);+ |: A" O' `1 m2 k2 ?( G
- return -1;
* X4 ^% ?1 ]7 g - }) }4 m+ j1 Y+ m4 N7 M
- arg.sub_addr_count = 2;
* I) C6 Y2 {) q- @/ \) c - arg.data_count = 0x18;
: s& [! Q5 ?: H& V4 G - arg.e2prom_cmd_sub_addr = 0x290;
' @: t* J6 Q" b B - arg.e2prom_cmd_data = buf;& U. F/ p( N. F8 ?" ]6 J" p
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
* d" L& \) k3 d" I0 t( w - if (ret != 0) {0 b; ]8 [4 A, O2 ?* D% H
- printf("Device %s write error.\n", E2PROM_DEVICE);& u: s. ~" V- m* V) ]
- return -1;6 ^% S K; A6 }; f
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- " ?/ M3 X) b. x3 I2 C
- return 0;
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- % w5 F. K: ?6 b+ F. T
- int main() l$ l) c6 Y/ K* [4 l* ^
- {
9 n/ F* m" B: Y% a& a - char c;
2 @1 A1 |0 u: j' W [6 w2 h z- J - int i, macs[6];
- b x+ N' V1 u - unsigned char mac[6]; }, U' `; U2 m2 W$ o: R
- unsigned char stbid[256];8 W7 g" A* T! R1 Y4 E
- " W0 U# \- m6 v/ [( q
- if (readparam(mac, stbid) < 0)
% N" u9 f8 w! m: ]$ J - return 1;
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- printf("Current parameters: \n");' H% @. z% h7 A: p5 x8 X. b' d! o% m
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
9 a f: K n$ |3 Y/ C! K - printf(" STBID: %s\n", stbid);
' y9 c' a- ^$ {0 M -
3 W) J# d1 \0 `* A5 F1 f) | - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): "); F" t3 n- ~ h
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {3 G* N9 F6 u$ U- Y! x0 o
- printf("Input MAC error\n");
2 n- q' M& T. w" J* O - return 1;2 V$ C4 J T+ ]" w0 s1 E$ e% N
- }% J0 B6 Z' ~6 D+ H ]' S
- for (i=0; i<6; i++)mac[i] = macs[i];
) v B+ g* @% C2 U; e/ z: @0 W - printf("\nPlease input new STBID: ");$ j+ K9 N' x, s! r# i
- scanf("%s", stbid);) s* ^5 v7 K. b& w1 ^
- if (strlen(stbid) != 18) {% ]! k/ q" s- c0 F% r
- printf("Invalid stbid\n");( }6 O7 v! j, H' [- p
- return 1;8 p. {3 b* N$ j& Y& r. N3 G
- }
9 X) L# J6 z1 ]) T" Q - printf("\nNew parameters: \n");
/ D$ [$ W2 B' `8 U e( } - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
! N/ o9 R3 G) M9 i( L# w - printf(" STBID: %s\n", stbid);) U4 m s" T( v" g3 [. l( c
- - k k. `6 h& n' P& Y
- printf("\nDo you want to change paramemters? (y/N) ");7 H. u' p2 r5 t; }1 h% Y
- for (;;) {6 J9 y1 i% A4 D' Y
- c = getchar();0 V. }! ?2 y- m) B6 B1 O+ a' @, T
- if (c == 'y' || c == 'Y')" [* s6 y" d0 }, ^! H1 o
- break;
0 H) m3 B: ?* y - if (c == 'n' || c == 'N') {# @- {# d, g& x. D" b5 d1 z% n
- printf("\nAborted.\n");0 Z# J5 Y3 |9 r" M/ G' ]" k# Z
- return 1;
4 |/ l& m& x }$ j$ l - }3 S G' f$ U( X; r6 L, h b# ~
- }) Z) k( O' }" l2 v, n
- if (writeparam(mac, stbid) == 0) 3 _3 C$ z% Y- g! d6 h
- printf("Parameters changed.\n");, ~1 h/ f8 k6 m0 P; k/ N
- $ S' L" P/ w! i* K7 Z7 x' I
- return 0;( Q. T* H; f4 D9 e+ k* ?7 W
- }
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