本帖最后由 0522 于 2012-3-21 23:04 编辑 ' |, ^/ e1 V/ ^1 H* @
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修改的代码早有了。到今天不会编译。" D; ]" ^, `& o
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>2 V1 T$ f" ^7 f9 O. o/ {
- #include <malloc.h>
' V' l* N( o- f* B - #include <sys/types.h>
6 Z5 ^/ O6 M% W, Q+ {5 u - #include <sys/stat.h>
" e* q4 Q* j' B" ^ - #include <sys/ioctl.h>
% r2 _. ^4 e1 x, m v$ V U - #include <stdio.h>
, ~. `. U. A% @2 K7 U. t. o - #include <string.h>
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, C4 x# T* G0 @6 K! w2 p- typedef struct {
( j+ ~$ e m* q; I - unsigned int e2prom_cmd_sub_addr;+ q1 v+ h2 G* n p4 S9 r0 g6 k
- unsigned int sub_addr_count;/ q: @' K, s6 _8 ]; e" ~
- unsigned char* e2prom_cmd_data;
$ S; S8 s6 b2 X3 O. b) j7 q" `( ]: Q - unsigned int data_count;
3 |. }" {) J G - } e2prom_s_cmd;
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0 v$ b# o+ S" c6 j& R. F" o- h- #define E2PROM_CMD_READ 1
/ q, H4 H N/ ~# E" u! I - #define E2PROM_CMD_WRITE 2$ @5 ?0 p9 L7 g; E& C2 d( h, n
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"- N: u. s ^& e$ }- h% b
$ \. P8 A. g; {& ~: G& X# {- static int readparam(unsigned char *mac, unsigned char *stbid)0 T; ^* R1 ^1 C% B+ x0 J) J2 F
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- int fd, ret;
, D& L h( Y- N8 c( } E - e2prom_s_cmd arg;# G; `6 p+ @6 `& p, i# D( V
- unsigned char buf[0x18];9 i2 D4 ]& r1 u
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- fd = open(E2PROM_DEVICE, O_RDWR);" C( T2 m3 r m3 J
- if (fd < 0) {6 b8 n ?& x2 b5 x1 e- i
- printf("Device %s open error.\n", E2PROM_DEVICE);5 ^6 H2 ]& m, G" c
- return -1;
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- arg.sub_addr_count = 2;
3 K# s0 F7 A# | - arg.data_count = 0x18;# H8 I2 a) E$ F' l
- arg.e2prom_cmd_sub_addr = 0x290;
8 e G6 b* D& B. a - arg.e2prom_cmd_data = buf;" K' D- b- b3 N
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);- M+ D& Z5 P" e* |( A
- if (ret != 0) {
- V2 d( _/ x E+ `& A5 F- q; U5 H - printf("Device %s read error.\n", E2PROM_DEVICE);3 m2 \. t! ?3 a/ G0 v- |3 i
- return -1;
% e3 M* U% c7 T8 u& \- D8 B$ j1 [) ^ - }
! A- c4 h& n* J! H4 ^ - memcpy(mac, buf, 6);# v' ?6 z- I* v* B4 T% i6 i+ \
- memcpy(stbid, &buf[6], 18);" q2 J0 v# i% X0 x l
- stbid[18] = '\0';0 ^6 A" B$ t* f4 J0 [" `9 Z0 m
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- return 0;) Y% C- _0 f3 h' ~' A* y W
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
! ?; l" C/ s/ b - {
( ]3 [9 p2 Q4 U* t* j+ s* \2 ] - int fd, ret;
+ o3 Y0 W$ l3 a# n - e2prom_s_cmd arg;, J6 L; ?' D T) C1 |) |6 y
- unsigned char buf[0x18];! X/ S7 _. y8 ]1 W# H" ]( S, f& f
6 @# ~: t8 O& _" l9 U- memcpy(buf, mac, 6);1 Y- }' f0 _! a- c! o% J6 ~
- memcpy(&buf[6], stbid, 18);
: V; X! M/ O( m7 b# ~# `# B( Y* o - fd = open(E2PROM_DEVICE, O_RDWR);
7 e! y+ X! O% Z- t7 f7 p - if (fd < 0) {' t6 Z; d0 [ M8 k+ u$ y
- printf("Device %s open error.\n", E2PROM_DEVICE);
+ n/ j5 w0 S1 k9 C" R; e& z) \ - return -1;
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- arg.sub_addr_count = 2;
( I. r9 H: ^1 {2 w+ K, |+ z7 r - arg.data_count = 0x18;
6 T3 n! Y: J& j8 Y; a9 F0 n - arg.e2prom_cmd_sub_addr = 0x290;! u1 {# C' \- ~+ @" ]( C: U2 b' Q
- arg.e2prom_cmd_data = buf;
3 R( e# m0 E! X1 S - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
. a1 x/ \7 `6 j- `& s G: ~ - if (ret != 0) {- a" @) S% I- c5 n; P
- printf("Device %s write error.\n", E2PROM_DEVICE);
% m, B. E" ^8 c" X( f* x' ^ - return -1;2 O7 K# X0 O" q7 U& @7 f6 M
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- return 0;
: o0 E% w3 b) o7 W9 H - }
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- int main()
' b1 W% G$ K0 B3 M/ J3 Y - {
3 z5 w: G: a" M: `! M' ]% W; Y, F - char c;$ Y Q: C* G& j2 C( H/ e
- int i, macs[6];! x' h( ^3 P5 B: S+ `& ?% c
- unsigned char mac[6];
, v: K0 S! `0 e - unsigned char stbid[256];
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% l% K) |0 U* ~- if (readparam(mac, stbid) < 0)* a/ G1 [# i% n# W7 e/ w
- return 1;0 i- G s; X5 ~& N: n) _
- ) N4 U1 |- l6 m1 x/ \
- printf("Current parameters: \n");' p7 W' S# T+ u$ W
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);8 a( z8 C- J) ]( @9 m
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");# w7 T% c1 R0 Z
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {: y+ y# p; J, M2 U* B" o/ |
- printf("Input MAC error\n");7 O. H1 n! i" b; V L* `% u7 _5 Z
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];
& N2 o3 z' k0 [ - printf("\nPlease input new STBID: ");9 W) d4 I( D3 z6 {# u0 j5 J. q
- scanf("%s", stbid);
0 M" A1 d3 Y' ~ - if (strlen(stbid) != 18) {
2 ^9 g% e5 S/ _ C6 s2 o - printf("Invalid stbid\n");9 z {+ `. A9 q( A8 H
- return 1;3 O* U) e1 D, }: d+ P- u
- }
% H/ _5 v3 X% g - printf("\nNew parameters: \n");
0 K5 m& {) {' l! x0 w - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
- E1 t5 P! g% d8 I0 X' {" a+ y3 d - printf(" STBID: %s\n", stbid);
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. M2 t9 }+ G1 i( x- printf("\nDo you want to change paramemters? (y/N) ");
& v8 c- t+ h1 H - for (;;) {3 `4 Q2 z3 `7 L$ k0 e# g, @5 k
- c = getchar();, W2 M: Y, j: x. ?, L, E
- if (c == 'y' || c == 'Y')
/ C9 o- M7 a! d: A - break;
! t k0 d% E. e" u - if (c == 'n' || c == 'N') {
& N9 G# k& q" P# l; h - printf("\nAborted.\n");
9 @8 ?2 n/ F0 H( i T- B - return 1;3 ?" V# ?$ F+ D
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- if (writeparam(mac, stbid) == 0) ( ^' R* \% \; \" }6 A
- printf("Parameters changed.\n");
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) H: i- r2 b( G E- return 0;, |! f! c7 \! C2 M6 j
- }
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