本帖最后由 0522 于 2012-3-21 23:04 编辑
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7 O1 j. O$ O) L3 r% Y! E1 d: k修改的代码早有了。到今天不会编译。9 C7 ^* U" y( f: c7 ~
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>% t. A5 }, Z6 D0 l( }2 A
- #include <malloc.h>
5 J" C& n) |( H8 C( b, h5 Y/ q - #include <sys/types.h>
{$ [! N# `8 S) z - #include <sys/stat.h>
8 J- q2 h* i- K4 F) G - #include <sys/ioctl.h>
$ f! b- {, U. U$ l9 i9 O- W5 `% L - #include <stdio.h>! i6 |2 g! U% m, t; ~
- #include <string.h>4 q* `3 d+ A$ M. d: w
- ( R! R8 p' W% n [1 P5 ^
- typedef struct {% K6 N5 a) [$ Y$ R
- unsigned int e2prom_cmd_sub_addr;
A6 K) B; h+ h/ Y$ @% @) b1 T - unsigned int sub_addr_count;
. {3 ^4 F9 f' `8 u: \, P, a - unsigned char* e2prom_cmd_data;4 F+ q& n9 ~2 S1 G' T2 r- V" m
- unsigned int data_count;2 f# i0 ~$ w9 w4 j( |% A3 Y# M/ G
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 11 ^; e/ Y8 P( I! ~' O7 S
- #define E2PROM_CMD_WRITE 2) C8 p j Z2 W0 f( z' s
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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2 `* S2 i- c6 E- i4 q- static int readparam(unsigned char *mac, unsigned char *stbid)- \8 ^9 w/ {4 s6 I0 C0 t! R
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- int fd, ret;' d" Q J; u7 y7 Q$ V/ ^
- e2prom_s_cmd arg;( w3 K2 s+ ]$ @& s# [% h" j' S
- unsigned char buf[0x18];/ L' D8 \# E/ `' T1 R
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- fd = open(E2PROM_DEVICE, O_RDWR);
. {7 S6 D7 \+ G0 `# ^ - if (fd < 0) {* B$ b! _+ M% i* Z, a& t" \
- printf("Device %s open error.\n", E2PROM_DEVICE);0 I3 A/ r! c, s2 `
- return -1;
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- arg.sub_addr_count = 2;
" f; O8 S/ m N3 C( i - arg.data_count = 0x18;
7 f( C; y; @5 A; ?) _, \. q* r - arg.e2prom_cmd_sub_addr = 0x290;
! {, h0 P$ @. m - arg.e2prom_cmd_data = buf;, Z, ?# V4 A" ]7 r: P# ^
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
5 w9 R* b/ u6 }+ _9 m# M$ `+ B* I - if (ret != 0) {
! D! _3 G- p+ N - printf("Device %s read error.\n", E2PROM_DEVICE);5 q: E' q/ J9 s( ]
- return -1;
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- memcpy(mac, buf, 6);
2 `" J2 T4 r6 L, g - memcpy(stbid, &buf[6], 18);
' D$ r2 o1 u1 N/ T& {4 h, W! }4 S - stbid[18] = '\0';; M9 U; u7 a7 }$ c1 l' }0 F/ q
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- return 0;
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- ' D; S- E% _! u2 f3 Z6 V
- static int writeparam(unsigned char *mac, unsigned char *stbid)
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0 R- e) C& X2 g7 @ - int fd, ret;/ G4 X& A$ }2 R" Z# W0 s
- e2prom_s_cmd arg;
' }$ M6 y n1 ^+ N% {& i - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);" @6 T/ _- V1 x% S; m4 M
- memcpy(&buf[6], stbid, 18);9 {" U4 V/ K* U# T4 {) t {
- fd = open(E2PROM_DEVICE, O_RDWR);
6 U0 B' k3 m8 t7 Y3 L1 } - if (fd < 0) {
4 P1 ]) ^/ P+ @ z3 I) O - printf("Device %s open error.\n", E2PROM_DEVICE);
8 E% W& u6 V0 {* M- A - return -1;6 o3 |) D0 O' N: C5 f6 t2 \7 K4 ^0 P
- }/ _+ j4 G: a3 U; o& U
- arg.sub_addr_count = 2;
) y3 t. ^0 C4 N u2 s - arg.data_count = 0x18;
, v) T% |0 P5 A9 v, g. Q3 k& Y5 S - arg.e2prom_cmd_sub_addr = 0x290;" x8 H; [! @9 \' |
- arg.e2prom_cmd_data = buf;
4 O; ~6 g7 ^6 @4 Z; s; P: K% v - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
) [. Y& h3 a0 v - if (ret != 0) {, w2 j" G/ y) z: L' _/ ]3 i
- printf("Device %s write error.\n", E2PROM_DEVICE);) f6 f4 W6 m; n, z, `" c
- return -1;
( d7 k: L9 x; S2 z6 I. u8 s - }
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- return 0;
3 [% @7 b2 G7 n, o - }
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- int main()
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- char c;
0 J# e5 w5 o. [( w2 S' f# j" v - int i, macs[6];; G) V2 x4 {) l* w3 D, O) y F
- unsigned char mac[6];2 F; \- g4 d, d. `' }1 y( U. g
- unsigned char stbid[256];
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: C4 G- d+ [. v- if (readparam(mac, stbid) < 0)
" ]- S% X( u9 a! W - return 1;4 i+ k" q5 Y$ @; O% i
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- printf("Current parameters: \n");, B* v' N0 U* D, J1 D
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
, B. t- ^- A' c1 j. b* b, F - printf(" STBID: %s\n", stbid);5 j, X, C( _8 i6 F' N, Q
-
' Q7 z, q) F& J/ d - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");/ A4 S, F6 L9 R9 q. a. k% a2 J2 q
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
/ N7 s) ?9 E. Y9 @ - printf("Input MAC error\n");
; Y) P6 ^& }' l4 X$ t, W - return 1;
. e% S$ u5 q M3 m$ }4 Z. j - }
4 r* s: t% ?9 Q2 X3 z3 ~ - for (i=0; i<6; i++)mac[i] = macs[i];% a7 R: d4 C/ S5 m0 s; x7 }( A
- printf("\nPlease input new STBID: ");
4 F: y: T$ w7 ]# n* Q1 P - scanf("%s", stbid);
( D# i% B2 r& J& l7 ? - if (strlen(stbid) != 18) {( ?7 b. M! A' e* }) S
- printf("Invalid stbid\n");) @9 ^. h( g7 b$ T4 q4 s" T. g& T
- return 1;
& p6 o! i/ x ]$ o - }
' E/ P6 d. P5 O0 e a8 C - printf("\nNew parameters: \n");
6 I* }& P3 W+ P - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
, ?8 d8 r7 K- e) a, i5 K - printf(" STBID: %s\n", stbid);
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+ k( a6 X1 f8 L) ^% V5 f- printf("\nDo you want to change paramemters? (y/N) ");
4 D- U8 B* y% S5 \$ S - for (;;) {5 ^" b1 v) {, y: V$ ]& \
- c = getchar();" z: P2 L" Y+ b' }& z
- if (c == 'y' || c == 'Y')
! c( M% K5 P; ~6 @ - break;6 E0 K9 Z% Z6 {! P5 b& C/ W+ {
- if (c == 'n' || c == 'N') {
% N1 }; Z$ C( b0 U - printf("\nAborted.\n");* @" F7 V# B& T3 H/ m! x
- return 1;4 h+ v! H! r0 ^& ~( d
- }
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- if (writeparam(mac, stbid) == 0)
7 v1 r# S# J% f ~8 C: ^2 \8 G6 {+ A - printf("Parameters changed.\n");
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2 ?! n' E. y, S( Z& d4 U- return 0;) a6 F$ B5 v: Q2 ?
- }
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