本帖最后由 0522 于 2012-3-21 23:04 编辑 $ s/ P, R/ W- v( }1 F/ k1 }4 e
# C; }+ R: r; w修改的代码早有了。到今天不会编译。# D' T+ w5 |- ~
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
# F; _; ?0 h7 \# ]4 }% |0 I0 q - #include <malloc.h>4 |9 p+ v0 c% @* K5 F7 K
- #include <sys/types.h>
) I3 B w Y6 V( y; V% y - #include <sys/stat.h>2 T. H9 J7 u/ \0 S+ |: ^3 |) d
- #include <sys/ioctl.h>
9 a$ C5 i2 r( ?) m/ l1 P - #include <stdio.h>
5 z1 A# G1 U8 a& @$ \( r - #include <string.h># ^. B7 I- |5 ~6 V% W; B1 K- ]
. A0 b3 ^: l$ }- typedef struct {
6 ]7 E7 h! I" B2 O - unsigned int e2prom_cmd_sub_addr;
8 K% q, i* c- R% f1 q H6 { - unsigned int sub_addr_count;
6 [ i) a2 A { - unsigned char* e2prom_cmd_data;
3 O- H. e' Q2 U# {/ M! H - unsigned int data_count;
" _- ^3 f; _* c4 G - } e2prom_s_cmd;0 }. K0 u# m/ h( ?
0 B4 m, G# g. n4 ]- V3 u2 j- #define E2PROM_CMD_READ 1" ^+ A F) N, P3 M3 |& e$ G6 _
- #define E2PROM_CMD_WRITE 2/ h, K- a' h2 [( L
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16". Z% F+ O4 e+ P# @, |! Q, i
- 5 ]+ E0 L! v% {
- static int readparam(unsigned char *mac, unsigned char *stbid)" X, b1 i" [0 G% u; ^. x
- {9 C- _: ^6 C* n$ L4 O
- int fd, ret;7 d* W0 o, Y& m' s
- e2prom_s_cmd arg;
~4 S" D+ Z) G) o' w o8 w% ` - unsigned char buf[0x18];
7 b6 F, z1 ~& L6 O m - 1 `: B$ Z5 D# K+ }, m
- fd = open(E2PROM_DEVICE, O_RDWR);
1 [0 C& p3 ^" ~0 R- h4 e( n6 j3 T - if (fd < 0) {, R8 s/ {, A# x: `, K8 s- ?
- printf("Device %s open error.\n", E2PROM_DEVICE);
. @! j& S9 i( i Q9 n, _- r2 @' D - return -1; G" Y/ `: c- f2 _" b; ^- v8 F" A
- }( `4 @ p4 E- e; H& ^- O: S6 `- k
- arg.sub_addr_count = 2;- }# z6 }/ I* t* a, O
- arg.data_count = 0x18;2 x+ ]$ ]9 Z0 i
- arg.e2prom_cmd_sub_addr = 0x290;
, Z" I; a7 W2 t; S0 H - arg.e2prom_cmd_data = buf;
) e/ o6 o% v7 a+ n - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
9 C1 Q. L9 B2 h% Z4 g - if (ret != 0) {$ j# \- w! c' W1 |- X
- printf("Device %s read error.\n", E2PROM_DEVICE);
! `( j) w/ ^9 z+ ]# M& v7 [ - return -1;
: R* K* c( J( o% M. E; I, D9 \4 c - }! _- l3 M: k @& g7 G. F; b$ e1 l
- memcpy(mac, buf, 6);
6 X$ p6 `% [$ L+ B - memcpy(stbid, &buf[6], 18);# B- |/ {& H/ G0 c. F$ L
- stbid[18] = '\0';* c4 ~% P5 ?3 E' Z v- k4 d
- R& K- I- V, P# `7 p' Z
- return 0;
( u# @9 T! P& ]( u' p+ d- z - }2 T6 e, Y" A" }) e4 \
- + e8 m1 M, s% H8 B C
- static int writeparam(unsigned char *mac, unsigned char *stbid)
# k" _+ S' H( J - {% v! v7 c1 r; r- K
- int fd, ret;
/ `9 g* C$ \$ O- |, x, r7 i - e2prom_s_cmd arg;
3 K* M' L; o! }3 [# o2 t& R/ a - unsigned char buf[0x18];
8 q- y2 Y% \# h2 `
( Q, M# Y8 ?7 J7 A- Q- memcpy(buf, mac, 6);
, G, x% r2 r% @ - memcpy(&buf[6], stbid, 18);
1 s- a+ X! K0 I5 x* z& _ - fd = open(E2PROM_DEVICE, O_RDWR);
( T/ O/ y R2 E# G - if (fd < 0) {
" v5 |# a3 x' [9 d) M0 q1 y - printf("Device %s open error.\n", E2PROM_DEVICE);7 p4 M$ x6 d2 N. s" F. I; V
- return -1;9 r) ? t9 D3 {- S
- }
6 I7 d, Q' R, n* U2 T$ _ - arg.sub_addr_count = 2;6 G" R7 I' I0 Y: ~( Q+ a; ~
- arg.data_count = 0x18;
$ k& o- s% D9 R - arg.e2prom_cmd_sub_addr = 0x290;
" R ~1 H# x( ^4 U1 C8 F - arg.e2prom_cmd_data = buf;$ h2 L) k- D) N4 A' P) Y9 O
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
5 j, U8 y1 j/ D& }6 k- ^ - if (ret != 0) {( q- Y; p `( W4 o' a% Q( c
- printf("Device %s write error.\n", E2PROM_DEVICE);
! X8 [, l; T1 o1 ^/ [. _ - return -1;
4 e* n& s7 y% B+ z - }
& Z; P$ D8 D0 K; s$ K, n6 h - " ^3 G9 n) ]6 E: J6 X5 u' j
- return 0;" P5 Z1 V8 `& ?8 m$ y% ^
- }* |- J9 f5 N! s: |. X- b; {
- 1 x3 F" i) I) J" ]
- int main()! E3 F5 {; v' t* U6 c
- {( {4 h+ k. y m7 U6 e
- char c;
) C+ U2 K$ v' | w: t - int i, macs[6];1 R$ j" |2 W \1 C( Q
- unsigned char mac[6];, Y. ~5 ~8 u* K
- unsigned char stbid[256];3 w7 W; f* l, H8 O, {
- 0 v: c. p, p: k! b
- if (readparam(mac, stbid) < 0)( e! V# M8 z( ]% a" O1 y
- return 1;
4 B1 O! Q! O+ }1 d
' m3 x- M. S9 ~4 { a- printf("Current parameters: \n");: n; J8 t1 K, m2 c% [6 e
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
% c$ _' N N }0 o5 F& Z7 I6 H2 _ - printf(" STBID: %s\n", stbid);5 j/ S2 U3 Y3 M
-
: D, | ]7 d( {( p7 D& D' ?( }# e4 ` - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
- `, t( Q. v5 i& G6 P* g& Z- C) V - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {$ e2 u4 M$ l) D0 q! a0 V; h
- printf("Input MAC error\n");' @+ u y+ M/ v4 h
- return 1;; k- Z8 E7 j1 g C7 u' j. f
- }$ K4 p4 z0 `# a& y O( K! v
- for (i=0; i<6; i++)mac[i] = macs[i];# \% k& X ]# E2 j8 ]8 r+ U2 V+ k; o
- printf("\nPlease input new STBID: ");
( S' |1 g+ m: @2 C2 v5 C9 P" E3 g - scanf("%s", stbid);" i7 I$ t9 A1 z* J' F2 c! t- F
- if (strlen(stbid) != 18) {
* E. E; I4 F/ z+ B1 a f - printf("Invalid stbid\n");
3 _; O& d/ v- i- r8 T( G - return 1;
* h" C" D! \, @. G - }
" v8 R4 A: N/ u( y2 Z2 | - printf("\nNew parameters: \n");
2 ^/ E9 x/ A+ ~, M - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
" o9 H% U! w; R8 p1 ?7 S" u s0 k& A - printf(" STBID: %s\n", stbid);* m9 y t0 c$ {% o& H+ i3 b% c; |. t9 m
{9 x( s' h1 D- printf("\nDo you want to change paramemters? (y/N) ");: _( b1 T5 U9 m4 g* E5 K, o' h
- for (;;) {
; f- N2 I$ E: Y - c = getchar();
. }, K/ L+ O9 X4 {' A& M - if (c == 'y' || c == 'Y')$ M9 w, W! b/ B5 R2 L1 w
- break;
. j, y" V4 w$ q0 a8 U3 P - if (c == 'n' || c == 'N') {
/ w j: S! q9 U2 a; N - printf("\nAborted.\n");
! ?* U O5 i, C( M& j! }3 { - return 1;
& a- z; i$ B. T) X. n/ i - }' _0 l% D( ~; n* e, _' b) k
- }
; P: _/ D3 R: R0 n% {& \ - if (writeparam(mac, stbid) == 0)
) d4 c4 u6 i) I! l% s+ }) z - printf("Parameters changed.\n");
/ ~" R" f% M3 b5 G6 Z: O X - 4 Z) U; C% k' O9 F8 n1 j
- return 0;
" ?! p% i6 x1 u) i/ Q - }
复制代码 |