本帖最后由 0522 于 2012-3-21 23:04 编辑 - |' |+ S+ w. _- q6 C/ s
5 u& o& U1 X3 ~1 ^修改的代码早有了。到今天不会编译。 L' h4 ?5 R3 T( N: H8 H
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>: S8 q2 H* {+ K
- #include <malloc.h>
! O' J( r. {9 m2 B - #include <sys/types.h>
" M$ t; F: q$ }( U0 c* ` - #include <sys/stat.h>
! s/ c8 y$ g" v: r - #include <sys/ioctl.h>
0 g4 i: T$ ~, E4 X+ e: l1 A% f# q - #include <stdio.h>
& ?- e, ]7 S5 R( q1 k ?& K P; G - #include <string.h>& E8 E2 r/ F0 V% I% b2 e4 ^
- ' L }5 k$ T- E3 i5 a
- typedef struct {
# T* \' L1 K( G# y4 ^% D8 d5 c - unsigned int e2prom_cmd_sub_addr;
! r( `/ o5 n/ P" B3 | - unsigned int sub_addr_count;5 F: U! i' v- J- B* a. C4 g8 ]
- unsigned char* e2prom_cmd_data;
( V' C6 h6 S6 V! T* _* }! O; I4 Q - unsigned int data_count;" Y2 L6 {( Q7 |; t0 a# S
- } e2prom_s_cmd;
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% {7 O, Z4 \% N& w! x; V- #define E2PROM_CMD_READ 1/ ]+ f* K" _- P6 f
- #define E2PROM_CMD_WRITE 2# p+ C5 }# s {
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
- ]5 L/ k. |7 n0 e - * ~5 [9 f9 \0 s! K `1 D* M
- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
. i% E6 Q: l" N8 D' L - e2prom_s_cmd arg;
% K" M* G/ n8 s: ~; P4 y& Y - unsigned char buf[0x18];+ C5 x$ u0 F: M6 Z1 ?/ H! n
- . W, m$ }7 X8 s5 B) V
- fd = open(E2PROM_DEVICE, O_RDWR);
3 ]6 V5 ]2 z+ X, W9 A - if (fd < 0) {
h! v. r! \( H L - printf("Device %s open error.\n", E2PROM_DEVICE);' b4 n" Z4 m4 M. U/ b) p
- return -1;
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- arg.sub_addr_count = 2; n$ v5 E m, t' @1 K4 D
- arg.data_count = 0x18;
) o( _! g$ T7 r4 v - arg.e2prom_cmd_sub_addr = 0x290;
! i0 r. T: {# t - arg.e2prom_cmd_data = buf;
( z; r, O5 i$ }4 C1 e- G - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
* }& ~( ]8 Z9 { k" l - if (ret != 0) {
M! E% }( e1 i: \ - printf("Device %s read error.\n", E2PROM_DEVICE);
3 p6 Y. u/ V) H9 n7 O2 B - return -1;0 S+ w) [5 w6 s" p0 `8 G
- }! M% B& F$ R7 Q- L0 I9 |7 T( y
- memcpy(mac, buf, 6);
7 k2 Y, v1 U. T. U8 r, D% e - memcpy(stbid, &buf[6], 18);! s! r. K: q7 v; l, m
- stbid[18] = '\0';. ?+ }7 k- M$ Y
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- return 0;( q# e3 B4 f. }0 | ^5 Y- H
- }
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$ ^# s4 W9 Q V7 ~# z- static int writeparam(unsigned char *mac, unsigned char *stbid)3 S' b J1 V6 \* v% v: `
- {
! R& |+ A8 o3 }. d6 ` ]* _ - int fd, ret;
! l2 v: I* |' p8 H$ m( z - e2prom_s_cmd arg;
. y1 [+ z5 F3 V8 r' P) i$ M* ]5 P; L - unsigned char buf[0x18];" [: n& x+ o( i5 i+ ?/ \3 [
- / s0 k, i) O0 S$ I7 l
- memcpy(buf, mac, 6);
: O9 ^1 Y: d5 p - memcpy(&buf[6], stbid, 18);
5 M1 h3 H2 x v- C - fd = open(E2PROM_DEVICE, O_RDWR);5 x( k2 p/ Z+ X+ J* c
- if (fd < 0) {+ V3 i k: a3 ` Q! t# \
- printf("Device %s open error.\n", E2PROM_DEVICE);5 D7 ^! [ J) V
- return -1;2 e; m+ H k+ c7 j6 P, S3 E
- }5 k! f. R# Z( A+ M9 n1 f. } t
- arg.sub_addr_count = 2;
2 m6 i# x' r8 H - arg.data_count = 0x18;" k% p. {' J4 W7 F: U+ e
- arg.e2prom_cmd_sub_addr = 0x290;+ }, J$ @( t6 n' d8 \6 z' k2 d- `
- arg.e2prom_cmd_data = buf;1 H- C9 R) l6 i* `( D
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);( r* U8 b* \) l( Y4 t
- if (ret != 0) {& k6 v2 B& O% n; a$ L$ h2 R
- printf("Device %s write error.\n", E2PROM_DEVICE);6 f. ]4 v" _+ E {
- return -1;
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- 3 ]/ j$ ^; J9 i' T
- return 0;
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g" c3 m- n8 s. i- int main()
+ `) X- ^! ~; D6 J5 k+ e Z9 d - {
4 ^4 ?- N' z H - char c;. w& w7 }. I1 h. [) o
- int i, macs[6];
* k! T9 P" v% x/ q% X' Z% P - unsigned char mac[6];
( x( d) h: q5 _6 G% c) |& D - unsigned char stbid[256];
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% Y! n6 `: s9 M4 j- if (readparam(mac, stbid) < 0)
6 C1 E, d4 w7 e7 d+ u* k - return 1;
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- printf("Current parameters: \n");
$ |6 y$ m' x4 @3 l - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
( x+ c$ {5 o o - printf(" STBID: %s\n", stbid);; V- E4 t& y: u0 v+ K+ a
-
5 x* V2 L: e4 Z* A6 m6 K; \- L - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
- B& D# i. ` C% `' ]6 m- R9 ? - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
0 W6 N- k& q: l/ |5 j' k - printf("Input MAC error\n");
/ J# A$ H4 o/ L - return 1;
7 g5 w7 u& [; Q3 X% m4 x4 @ - }
i, `0 I3 m4 l- H! U% o - for (i=0; i<6; i++)mac[i] = macs[i];
! T# K( ^ a$ d F+ | - printf("\nPlease input new STBID: ");
7 g" t" ~9 j4 X - scanf("%s", stbid);
j# ^; d& p; O B( M. v% q - if (strlen(stbid) != 18) {2 m8 A, l" \2 _2 W7 L
- printf("Invalid stbid\n");, d& D M: x) Z& Y3 ^
- return 1;
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- printf("\nNew parameters: \n");+ ^6 \! B2 B1 @' Q+ U3 c2 S- R
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);% a+ J/ o6 a! S' z
- printf(" STBID: %s\n", stbid);( A4 e3 o9 [/ o! @( O f
- 0 J% q1 W1 }! |5 g* p
- printf("\nDo you want to change paramemters? (y/N) ");& `! o0 |$ \8 E' `0 j- V6 w
- for (;;) {: M- ` @. p. S# R5 \4 Q
- c = getchar();
; l1 x' ^% k5 M0 {# u5 ` - if (c == 'y' || c == 'Y')
' a" u* G+ S# G* e! U* E" p - break;) A: W0 L& L( z0 ]6 q' a
- if (c == 'n' || c == 'N') {9 D# l( G) z2 m! m7 W
- printf("\nAborted.\n");/ A( R% l9 |" g1 \3 {5 G! ~
- return 1;
2 L/ h, ~! V( \3 a, X - }
3 E% t' W6 u! C/ } Q# I6 D - }
) F; f3 J ?2 I: ~0 C5 l; S. C - if (writeparam(mac, stbid) == 0)
9 y: y) r! l: }' E - printf("Parameters changed.\n");/ H9 }' s8 @5 O! Q
+ R( U, Q1 ?! r' |! S- return 0;
! V7 X% P7 J6 X2 V3 O - }
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