本帖最后由 0522 于 2012-3-21 23:04 编辑 : r- ~& f! P6 b
1 A, p! Z/ S9 H/ R
修改的代码早有了。到今天不会编译。' S3 I, J) X% _/ W
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
' F7 `! A; C! L* ?' N: z/ W" ~ - #include <malloc.h>. h% `: ?6 @8 Q: s# v
- #include <sys/types.h>
( j: E6 h. x: { - #include <sys/stat.h>
" A1 k/ t( s. L- K& A. V - #include <sys/ioctl.h>
- l$ W" }5 w. f8 d - #include <stdio.h>$ D& w/ C' a0 e* ?/ P0 m+ E
- #include <string.h>4 t; A4 f6 t- k/ R0 C
8 X7 m' T( V8 E. P3 Z, b4 W1 Z- typedef struct {
9 q+ G& o2 U6 u* O9 N* A) Q - unsigned int e2prom_cmd_sub_addr;: ~7 e% H- s1 z
- unsigned int sub_addr_count;
5 O9 e5 S* k% v5 i3 h" g - unsigned char* e2prom_cmd_data;! Z2 o0 c) `% }& C
- unsigned int data_count;
[0 j- S6 m8 j5 P; } - } e2prom_s_cmd;/ c, `( I' I' f) X# _' r
7 V6 v' j/ v9 y" T3 y- #define E2PROM_CMD_READ 1
4 z9 G+ m& b8 p - #define E2PROM_CMD_WRITE 2
+ n0 B5 h$ B- C" ~' W - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
" X7 p2 h; A% q/ }. r+ ^+ z( X - + |7 I/ k; x \0 R/ |7 L
- static int readparam(unsigned char *mac, unsigned char *stbid)
, Y9 i% k5 I: B+ Y - {
) S- v) G" ] d2 q% M4 K - int fd, ret;
, w# X# b# y, w) g - e2prom_s_cmd arg;5 ]; u% [. L' b1 {2 K/ U
- unsigned char buf[0x18];8 L+ u2 }# c5 ^, }0 f
- 8 E/ o0 ^! h) P# \) u; f
- fd = open(E2PROM_DEVICE, O_RDWR);3 d' P+ S; ~ l8 j1 l" x* Q
- if (fd < 0) {
1 B" L% b. Y1 j _% Z" e - printf("Device %s open error.\n", E2PROM_DEVICE);% K- h! \# K: P: B
- return -1;0 }% S+ p! w" h" w
- }0 j8 e8 F9 r1 e4 O3 \
- arg.sub_addr_count = 2;
: d3 \" o5 Y# ]. F- p - arg.data_count = 0x18;: @! D% q( R: u f( ?% j1 b
- arg.e2prom_cmd_sub_addr = 0x290;
" B9 w J; ^% O: \, F - arg.e2prom_cmd_data = buf;8 _0 E* `) F& Q0 _9 V
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
' N5 k6 R9 Y6 R - if (ret != 0) {! R2 F9 [( _5 o
- printf("Device %s read error.\n", E2PROM_DEVICE);/ J/ G! Q; ?+ B1 V
- return -1;. F c; P, J3 Y& _7 d' D% Z- G5 S
- }
. ` J" Q: @0 @& T. o - memcpy(mac, buf, 6);$ z% p' h0 Q2 H7 ~' d
- memcpy(stbid, &buf[6], 18);% a5 @2 g z a( {9 C: p- P
- stbid[18] = '\0';
+ u0 K1 `6 ?5 I- {- j4 G
3 V- `5 a4 ]! X8 V$ ^4 y+ {- return 0;
0 L' m# l& W, p$ Q; |' G2 Q. |0 D - }# Q: u2 d( O3 k, \6 C
! U$ f9 y8 `; }; J5 ~- [: ]" i- static int writeparam(unsigned char *mac, unsigned char *stbid) Z/ d% g f7 N7 ~2 u( Q3 G: K
- {+ m/ A9 a/ ]) q
- int fd, ret;
0 X! G$ L6 W: E/ c* B - e2prom_s_cmd arg;6 |2 P% f+ y k; x1 x
- unsigned char buf[0x18];
1 j" d% A0 \9 l$ a4 G/ W - ) d& \% M- |! N
- memcpy(buf, mac, 6);9 o; c) u% x; S/ ~* P
- memcpy(&buf[6], stbid, 18);# q! A7 p( g0 X3 _, {7 G
- fd = open(E2PROM_DEVICE, O_RDWR);
: U0 Y! E6 L' B7 [/ _; U: ?9 z - if (fd < 0) {
3 d: `; g' t0 a7 I - printf("Device %s open error.\n", E2PROM_DEVICE);& V1 s( H& x6 g8 h
- return -1;8 ^3 B7 h0 W6 T
- }
y$ y$ r. P; z8 y. o - arg.sub_addr_count = 2;5 ]* { |4 s" z t
- arg.data_count = 0x18;
4 J" w" v) e7 g2 T3 I- G; L. T( N# K - arg.e2prom_cmd_sub_addr = 0x290;
( e) i" F9 j+ k; U8 q' I: ~7 A7 v - arg.e2prom_cmd_data = buf;
3 z5 h! |/ E( o; [- g8 m: J - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
+ w/ K/ I8 c* \! w% s3 u& d - if (ret != 0) {+ T/ y. d$ z( k$ ?7 T
- printf("Device %s write error.\n", E2PROM_DEVICE);
6 {$ V. C3 N" z. n - return -1;7 v- H: l3 n0 l% o% D9 H
- }: O, q) J* K) X: v5 Q
- ) G" R( Z* o& s% Z
- return 0;) q0 T/ B1 @4 Y" i p# e* ^7 X6 D
- }
7 A( t, \3 W% \' L z' G; k
1 r1 j# O" O* L4 u* o* q; o- int main()
$ Z: ]3 a5 Q5 R# X | - {1 S; c8 _) |8 j; I
- char c;
; [. n; [- q' a) o5 U - int i, macs[6];
7 `& T( n3 ?2 Z - unsigned char mac[6];' |9 a, w# k b/ H& ~1 p
- unsigned char stbid[256];2 W! ~% D- ~# w7 I4 h. ~# S& ?
4 h# r& k& ^! _+ F- if (readparam(mac, stbid) < 0)' j. @2 A d% }+ w6 y3 ~1 ^' S9 @( `
- return 1;0 j0 I+ B6 b1 k0 o1 L- @6 j
- 1 [( g: `4 _4 \ M3 ? v
- printf("Current parameters: \n");
+ B. x+ @" S# {7 u! M% ]1 l: L+ I - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);# F, Y+ {' b' ?& ^$ a8 |( d
- printf(" STBID: %s\n", stbid);
7 a, i: s' Y1 @3 B3 c - . a) x* `2 \) Q: r8 ^0 b3 k# _
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
. s5 X7 K5 C; ]0 l5 n: _- a - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {( u! [* r) s3 Q t8 o7 A
- printf("Input MAC error\n");- b9 a) x/ e' o1 Q, Q. K0 n
- return 1;7 p" v/ T' D8 D+ y6 [
- }6 c, X7 f5 W7 r- y( Z
- for (i=0; i<6; i++)mac[i] = macs[i];
$ n0 U0 p# n3 f2 F. \ - printf("\nPlease input new STBID: ");
2 w2 S/ K5 N( p7 @& C* Q - scanf("%s", stbid);
( g) C* G9 [- @0 F - if (strlen(stbid) != 18) {
: c1 P9 d* a4 }. @. I. L+ l, V/ m: u - printf("Invalid stbid\n");$ n8 x- z% B q0 G
- return 1;4 U: U- p" h/ y1 P$ O
- }, a, c$ _* B: l
- printf("\nNew parameters: \n");+ ^4 I! l, G+ w2 E, ~- [2 j
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);% f6 K- d% R' \& Y9 t) ]
- printf(" STBID: %s\n", stbid);
) Q, |0 M7 B. J* b1 V2 ?+ \+ l
+ d/ }1 o* D$ N- printf("\nDo you want to change paramemters? (y/N) ");
/ n3 y' |; @, J2 r - for (;;) {
8 q6 n/ |4 E% p$ C - c = getchar();
/ d6 c8 F' T% D r% K - if (c == 'y' || c == 'Y')
5 D1 A; W! j6 {- Y3 n) K - break;
7 i; @* h6 Q2 j4 {1 O$ u - if (c == 'n' || c == 'N') {
^, O+ ^ x1 o7 i# u9 E - printf("\nAborted.\n");' m. t$ e7 H" H5 V9 d, j
- return 1;# l# o; @3 u* h+ z, s" G1 f( Z% L
- }3 [# w1 m7 E) e4 z& h6 y: |
- }- J5 S) W: ~! j7 S; \1 j8 _
- if (writeparam(mac, stbid) == 0)
5 R0 I1 |; `/ u5 z0 W% l) q0 H: a - printf("Parameters changed.\n");
! B, O0 _- {( a; `8 S; t
, O0 B. t7 G7 z. C' O- return 0;
7 C4 l% T+ N, y' x6 j; g1 @' x - }
复制代码 |