本帖最后由 0522 于 2012-3-21 23:04 编辑 # V1 u. l4 Y! x0 f
0 O2 o: ?1 U; r0 n& }) g& j1 f修改的代码早有了。到今天不会编译。/ Z- c% I% _" [
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>8 H4 j0 R! y. @5 ~9 Y
- #include <malloc.h>
* k. `* D' F! m' A1 J* b2 q+ h - #include <sys/types.h>
5 i8 e; N9 {+ a - #include <sys/stat.h>; _) W- y9 g+ X9 Y0 z
- #include <sys/ioctl.h>
" ]' @& |0 |1 K' N - #include <stdio.h>
" p- d: h' o7 \: r1 K - #include <string.h>
! D0 T1 F, O( ]4 l: H# c$ W
1 _4 v; e/ M- X0 c* {% X- typedef struct {
. M4 L6 @0 ^! U% D" t2 ^ - unsigned int e2prom_cmd_sub_addr;
, T) d8 Z. n! q4 H( b - unsigned int sub_addr_count;9 s) A8 N9 d! h$ ~- T
- unsigned char* e2prom_cmd_data;/ r" e' \ E6 U; a
- unsigned int data_count;2 N& O, [0 j+ m8 c& N* l% F9 O! s
- } e2prom_s_cmd;0 T% u$ J8 b t/ v
( p. a# r8 h1 `( n& b2 B: E" A- #define E2PROM_CMD_READ 1
7 ^& O( F! \: P/ `. ^ - #define E2PROM_CMD_WRITE 2
. o5 d1 a) w8 n - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"8 a; n |. F2 p9 }
- : y: d2 l* @; K9 {6 l& b6 h) n$ q
- static int readparam(unsigned char *mac, unsigned char *stbid)
6 H. ~3 H' G5 a) N# w' W - {
. O; O2 R, z2 M" O - int fd, ret;: u- D5 D& n% z
- e2prom_s_cmd arg;
$ N9 l1 `. j6 E2 \7 F$ s - unsigned char buf[0x18];/ O2 P# e, B6 ?
) I/ z, @8 Q; b0 d- fd = open(E2PROM_DEVICE, O_RDWR);+ j0 v2 A% y5 t5 ~8 i" i9 j
- if (fd < 0) {5 X" k3 U5 V% j( y9 F4 C5 \& Q* ^
- printf("Device %s open error.\n", E2PROM_DEVICE);1 |9 V5 X' q2 x7 C! o
- return -1;
. w' O- \* r+ w/ m - }% i; } y' a3 T+ B* R
- arg.sub_addr_count = 2;$ ^% g! S$ j) s* _3 _7 v3 F7 F1 ]
- arg.data_count = 0x18;! a# m. k+ ?+ W m9 l+ V) Q
- arg.e2prom_cmd_sub_addr = 0x290;8 w5 ^0 @5 S$ r7 k5 T
- arg.e2prom_cmd_data = buf;3 g$ G( v# S/ L2 W
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);* `8 H* {; f$ ]8 z* r& w5 C. h
- if (ret != 0) {/ Q5 ?6 N* A' X( C
- printf("Device %s read error.\n", E2PROM_DEVICE);1 e' j+ ^: {" ~( ^$ t, p
- return -1;
* B2 F3 O, T8 b0 L& H" E8 r - }/ F& @6 G! T3 q
- memcpy(mac, buf, 6);9 y1 P0 c7 _0 [ I. R
- memcpy(stbid, &buf[6], 18);
1 I5 r1 G1 h& a# i3 D4 T/ Z - stbid[18] = '\0';
: C; T4 y9 x$ M' I; b
8 L0 r/ O! W* X6 U) y- return 0;7 r2 X; b; t1 {9 @
- }2 I- I3 {2 [" N+ Q
- 8 J ~/ H9 |9 \
- static int writeparam(unsigned char *mac, unsigned char *stbid)
- b$ A, x+ v& O! ?6 n - {
& S: S7 X5 m4 i: \/ X - int fd, ret;
1 s, n6 Q! Z1 d f: x1 C - e2prom_s_cmd arg;
$ R' t' Z# |9 ^; E( { - unsigned char buf[0x18];( u1 v) n1 O$ ?5 S2 s& ]1 p
1 ~0 ?9 H$ o1 E6 Y/ H4 y( e) A+ t- memcpy(buf, mac, 6);/ V- z) O8 v x0 w) V: G
- memcpy(&buf[6], stbid, 18);
2 ]( R0 \3 `" _+ W5 L$ D# q+ y - fd = open(E2PROM_DEVICE, O_RDWR);
& c: ^( v0 S+ U/ Z - if (fd < 0) {( R5 k1 l4 _+ P8 u4 N$ E+ v+ {
- printf("Device %s open error.\n", E2PROM_DEVICE);/ L! j/ p2 r% n
- return -1;
1 _, R, u/ s1 R1 `( ?! ~ - }
0 U5 l5 J8 R0 }. R) @+ Y' m - arg.sub_addr_count = 2;$ s" Q# p; S, L r
- arg.data_count = 0x18;
; d# e5 v5 \" @0 K- j0 q4 C - arg.e2prom_cmd_sub_addr = 0x290;
& m+ Y/ Y: ^+ S d |6 G- _ - arg.e2prom_cmd_data = buf;
; v- y) [8 j/ j: I/ ^0 k; Z - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
3 z; _+ R! p6 [& g3 d& L7 z! I - if (ret != 0) {3 _8 B+ \5 c( O2 W$ h
- printf("Device %s write error.\n", E2PROM_DEVICE);5 Z* Y. w5 s. _2 U
- return -1;
4 n+ J5 S/ p6 N+ r4 z8 O9 r4 I - }
# z% ~) w/ |' [9 v. L# F# j9 f" [
* z. b7 g- y0 q- return 0;# X% J' O3 ]7 f! m4 S% s3 X
- }
/ t* b% f! F+ m& U - 0 p; d+ q Y8 S! a; B9 m, u
- int main()7 [" |$ [5 z" ~) Y y
- {: m9 o. i: G' J$ l& [8 @ ?
- char c;
7 A" x% \: j+ B$ C8 G - int i, macs[6];
) y, f! c: B, t$ |) C/ M& t - unsigned char mac[6];0 x' ]; x! r3 W9 D
- unsigned char stbid[256];
! V2 o2 q3 O: I3 P - 2 M; T% L6 ]3 X9 o* R- R+ c
- if (readparam(mac, stbid) < 0)% Z2 T7 f& u! |8 f$ A- L
- return 1;" r2 P0 X7 P5 l
8 `9 z' C) r8 |% ?* S- printf("Current parameters: \n");
& u5 z, r+ V/ _# F/ ~4 D - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
J0 T4 W Y. B: B( f) f( u7 y - printf(" STBID: %s\n", stbid);8 [2 z- M* |8 m# v E4 Q
- + t2 G( y' C/ J# x' P
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");( z: ~5 V: _* F k
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {5 A( G# v# z( H# S0 ~% J+ {
- printf("Input MAC error\n");6 X% D$ \& U; `! ^. r
- return 1;
8 o. L! ~, Z8 a3 ` - }
/ X" a. h$ |7 x% c - for (i=0; i<6; i++)mac[i] = macs[i];5 R; A8 T3 Y7 v- _
- printf("\nPlease input new STBID: ");, \4 [ H! A+ M8 _; ]& k
- scanf("%s", stbid);
! {- A9 d* L" i( }4 ` - if (strlen(stbid) != 18) {( A4 z$ D* U3 n! M
- printf("Invalid stbid\n");3 n5 p1 G) y r- y- S
- return 1;- ]2 F' G6 ^9 v9 [1 X* S
- }
9 B4 Q+ D' r9 X7 s- {2 c" T$ a! k - printf("\nNew parameters: \n");/ I, s6 ^1 @! t
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);+ b- C" U, Z0 \4 c" ~: N
- printf(" STBID: %s\n", stbid);. C+ K! ~: C! P/ c+ g9 ]4 ?
- 1 V4 {. N% Q, V6 \0 v: r2 A
- printf("\nDo you want to change paramemters? (y/N) ");
% U$ a1 s' |3 T - for (;;) {
: [- B2 K8 X, ~! q R6 p - c = getchar();
5 I6 L4 d W" Q; @ - if (c == 'y' || c == 'Y')
) F6 A8 q5 _8 x* q9 t# D/ A) d - break;
( M6 ~0 \4 q6 S# x2 M5 f - if (c == 'n' || c == 'N') {% f% x H1 p+ z m% q, v4 S$ A T+ `
- printf("\nAborted.\n");
9 n# O% W/ p- L - return 1;
, P) e7 H& U* d* M3 @5 e3 l - }5 y$ n; h5 U% l1 r) \
- }5 ?' e0 w8 M, p- U" F
- if (writeparam(mac, stbid) == 0) 5 N& j. s0 G; ~5 F) }+ g1 m" [" f
- printf("Parameters changed.\n");# g. t! b0 _! T4 e [: a! x
9 e0 c, P# D" g V, P! x8 h- return 0;! ]7 C: I* u" I$ [4 n% i
- }
复制代码 |