本帖最后由 0522 于 2012-3-21 23:04 编辑 ( T v1 m: c" W" l2 [- P/ C$ j" ?
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修改的代码早有了。到今天不会编译。- o7 a' ?8 A9 z1 U0 j
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
. Y/ X" q0 m: |( _- P1 q# t/ W - #include <malloc.h>' c! l8 l/ O+ G' @
- #include <sys/types.h>' ?$ B; R! @' U& s$ l
- #include <sys/stat.h>
7 {: G( _4 v1 q" o+ Q - #include <sys/ioctl.h>
% k$ v- k) E% d0 k5 z# x0 ~ o. G - #include <stdio.h>2 f* ^1 B* J( N v- V' V
- #include <string.h>
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- typedef struct {
, R: i$ V* v6 {5 U6 X9 }$ K- W - unsigned int e2prom_cmd_sub_addr;2 e7 |' Z: W2 w9 L! R
- unsigned int sub_addr_count;
* o) w0 q$ l/ `2 O5 j6 N - unsigned char* e2prom_cmd_data;
; B( @4 Q8 \+ Y+ V' R# Y - unsigned int data_count;
1 i: c* _5 E6 e4 Q6 r, B - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
) P$ b: y* J% G( b$ V: y- ? - #define E2PROM_CMD_WRITE 27 q8 R8 j d! S& i9 m
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)- F" C' ]1 j7 {5 f
- {
9 `1 N3 y& ]8 M8 L0 K - int fd, ret;
8 ]" k6 J. U/ m! V; R - e2prom_s_cmd arg;/ N/ _( @6 x' ]# v! O6 u6 Z$ B
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
+ M8 s$ {+ U' u$ d# M- V - if (fd < 0) {7 t. I; C6 Z2 _. b+ I! x8 v; R0 v
- printf("Device %s open error.\n", E2PROM_DEVICE);
( x. @, o5 g0 q - return -1;% d' e5 |( D9 t4 \/ j/ s- {, q
- }
3 ~6 S' }" [ x& I$ h! i9 S - arg.sub_addr_count = 2;
9 E; L0 w$ ^: n7 S3 r1 C) `' V - arg.data_count = 0x18;0 t/ C+ ]* `! R* J6 I% s, p8 }4 y
- arg.e2prom_cmd_sub_addr = 0x290;
6 v& W T2 t1 ] - arg.e2prom_cmd_data = buf;
! o+ _" ~6 e- K* M: i5 j - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
, R! ]: R) ]! v; f! ^. j& x( D - if (ret != 0) {
+ r3 k1 D: W6 {& g+ A7 v - printf("Device %s read error.\n", E2PROM_DEVICE);7 G0 ~- I2 n$ t
- return -1;7 I! k2 I& E" U
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- memcpy(mac, buf, 6);8 Z3 I: r6 x# c, w+ \4 T+ K
- memcpy(stbid, &buf[6], 18);
: f* m' L- f6 j! G3 E1 W - stbid[18] = '\0';* H4 m: [' L! J2 N' c
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- return 0;8 M# a; u( X2 I. |
- }, L8 f$ t- o( H$ w& B% ~0 B# }
- ' v7 |3 w5 N- h% H6 f; X, p2 ]" G
- static int writeparam(unsigned char *mac, unsigned char *stbid): v4 `0 `5 t% x8 J. Z
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- int fd, ret;3 Z6 ?1 U' b/ U' v2 H6 D* B2 ?2 t# f
- e2prom_s_cmd arg;( c* y" e5 [1 v, o4 e
- unsigned char buf[0x18];
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& a \) I+ ~1 P$ M9 t' B1 v- memcpy(buf, mac, 6);& A- q$ O" |5 Q" g, A
- memcpy(&buf[6], stbid, 18);
* e3 L7 l, z( D4 g: w0 p - fd = open(E2PROM_DEVICE, O_RDWR);
# y7 W) _( n. h, ~! l; N - if (fd < 0) {
. d3 g3 ?$ H6 _ - printf("Device %s open error.\n", E2PROM_DEVICE);2 B( U! `+ a, ]. B, \" e5 P1 m
- return -1;' }& U/ B9 M1 I3 e' f% L4 \! R
- }
& { ~/ K- M) B2 G' t) \" {3 d - arg.sub_addr_count = 2;, B0 q n$ j% T/ d6 _* _4 C0 `$ S
- arg.data_count = 0x18;
7 V3 s- w( W/ G3 }& q" g* R - arg.e2prom_cmd_sub_addr = 0x290;
U- Y5 d% O4 D1 a! y - arg.e2prom_cmd_data = buf;7 N5 K8 C/ P F8 V
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);* i+ I- d6 p/ o$ W8 l. O; B) I4 B
- if (ret != 0) {/ a Y9 J0 O, y V$ r1 g2 _9 k
- printf("Device %s write error.\n", E2PROM_DEVICE);) g! Y8 l3 \, R! \: U
- return -1;" I8 h9 {' {* l
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m. i- t' O+ |8 f7 O1 Y; z- return 0;/ [( _! f5 q2 n$ Q7 p
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- int main()
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- char c;( P9 h7 {+ P' ^
- int i, macs[6];
2 j) _1 J8 J( T8 N6 `; {' G+ i - unsigned char mac[6];% m: N. [) ], p9 U
- unsigned char stbid[256];! L; Q6 {2 n+ Q1 l. t
) X- R' `6 |9 x i. o- if (readparam(mac, stbid) < 0)8 C4 K7 ?7 W8 p: h" {
- return 1;
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& l" r9 D# e3 K* u5 P# q$ Z- printf("Current parameters: \n");1 Z" V- j: Y/ n/ {5 d4 ]8 Q3 R
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
- ^9 e. t- g% V' d - printf(" STBID: %s\n", stbid);" e. y: L* ]# {
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
- u3 n1 q/ m/ N; F; S - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
! q# k) U8 l3 S) ] - printf("Input MAC error\n");8 s! a7 u6 \9 n' V0 ~; I2 ?
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];# u! y5 u, Q. L$ ]2 q% m- m- `
- printf("\nPlease input new STBID: ");
. P( t) @& L) a3 H7 s- V$ j3 j - scanf("%s", stbid);: M9 u4 W) q+ s5 D
- if (strlen(stbid) != 18) {# Q% `* b& D7 B/ l0 D$ X5 V# ]
- printf("Invalid stbid\n");
. R# F2 P4 t- l* t" v8 r - return 1;& e2 O; C B4 e/ T7 a
- }
$ ?- O4 r4 ^0 V" q - printf("\nNew parameters: \n");8 U# L6 B7 q; D$ L7 S6 |- ?( {6 z, Y
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
) f3 n% e4 `5 B/ @ - printf(" STBID: %s\n", stbid);. B% @, z! a. J' ?7 N8 r
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- printf("\nDo you want to change paramemters? (y/N) ");# s2 T5 A5 _* t; j& n+ |+ g
- for (;;) {9 x h2 {/ e g$ l! x
- c = getchar();9 \( f& ^/ X0 b( i
- if (c == 'y' || c == 'Y')* f. F$ ]5 }; o
- break;: x/ \4 b% X: k6 w Q
- if (c == 'n' || c == 'N') {
* D0 i m( o. b& y# r2 U) ?7 E - printf("\nAborted.\n");
4 | y* F* k0 j1 c - return 1;3 l& A2 ?: m. s5 h
- }
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- if (writeparam(mac, stbid) == 0) 0 O' Q& J5 ]# D$ |3 F5 e
- printf("Parameters changed.\n");# C! q! H: B1 M3 m
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- return 0;) b5 _: b9 w, l8 D
- }
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