本帖最后由 0522 于 2012-3-21 23:04 编辑 0 Z$ D7 o& ?0 V& F2 M- F8 d
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修改的代码早有了。到今天不会编译。% O# S& ]6 p }" w
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>: k7 ]! r' o+ O3 o( Z7 }
- #include <malloc.h>9 X- S$ K9 s: T# s) A
- #include <sys/types.h>
6 @, g8 D. F: w9 P* ^$ _' b6 c - #include <sys/stat.h>5 V* j& w# ?- [) |
- #include <sys/ioctl.h>
+ X( l) j M4 j$ @ - #include <stdio.h>
. K" y9 F0 a; j - #include <string.h>
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- typedef struct {
1 Q; a4 D" U2 U b0 M1 c - unsigned int e2prom_cmd_sub_addr;( }# r% z' ]5 [. t
- unsigned int sub_addr_count;
% Z) a4 j7 S- E( o6 R) ]- o+ X - unsigned char* e2prom_cmd_data;3 R! Q" I* j' c s' q2 y. Q
- unsigned int data_count;
6 E5 n+ k ^1 t" e+ b - } e2prom_s_cmd;
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: X( O: Q3 V0 l& z! `3 k: G W- #define E2PROM_CMD_READ 1
2 Z" S- h8 X$ b- y/ A0 ?) i' f; x - #define E2PROM_CMD_WRITE 20 |3 v1 _9 s7 O2 c8 `
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)5 W1 e4 U- J: F+ z" f5 S
- {# `, f7 h$ N" I& s, [
- int fd, ret;
( w8 [3 I6 _. x( G) J - e2prom_s_cmd arg;
4 J- l9 n' t; ^2 z) _ - unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);' J( g5 a* z- ?. R" N. v
- if (fd < 0) {
5 I& m6 _! b$ Y, t- r+ ] - printf("Device %s open error.\n", E2PROM_DEVICE);8 H" n# K, l, J( {
- return -1;0 S+ \( S. a" D' M. @" q; ~/ S
- }
9 g: @) k% P$ ^: _5 M - arg.sub_addr_count = 2;6 I. V, ]" F. G A8 x
- arg.data_count = 0x18;" x) y) T- p& a6 h: c* x
- arg.e2prom_cmd_sub_addr = 0x290;. p! c* E6 F0 m2 }3 U& C) X [
- arg.e2prom_cmd_data = buf;
7 o3 x8 V5 U$ W3 I - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
7 Z7 G( f; y2 a" p8 m2 p4 E - if (ret != 0) {& @6 A/ l" ]2 m9 F, K! r. ~# r' j9 K
- printf("Device %s read error.\n", E2PROM_DEVICE);$ H# e+ l5 a/ B8 v' L
- return -1;
. D- p: b1 A* T. \- z) T& V - }
: z: h7 S/ P- ^* F - memcpy(mac, buf, 6);
9 l+ G! B4 [2 \% u- p - memcpy(stbid, &buf[6], 18);: E* ?7 I4 ?( j) Q* B
- stbid[18] = '\0';: O. U5 V, | h" }; ?- p! c0 _
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- return 0;- @2 [- d8 n3 y8 \) I' B
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)' v0 e* u$ H6 M! x) K. s D) ^
- {' x- _8 A2 V, O; d
- int fd, ret;
2 v1 w& ]% M, }$ N% D% v3 D - e2prom_s_cmd arg;: E0 ~4 e! d* x
- unsigned char buf[0x18];) r, n. M. P$ D& }2 B6 w/ G
1 o% R* ?8 [' X1 I, R- b9 ?- memcpy(buf, mac, 6);
" i+ ]9 D$ n0 {) F5 e - memcpy(&buf[6], stbid, 18);
4 s ]( `7 B k, r6 V ~ - fd = open(E2PROM_DEVICE, O_RDWR);! D* n3 Q0 r0 O
- if (fd < 0) {
/ @, u. w) o0 ~. v' \4 t& P - printf("Device %s open error.\n", E2PROM_DEVICE);- S& [& h$ }/ h
- return -1;$ F" s7 ]% P: U5 W. {& G
- }
' ^) s# Z/ i' @0 q1 t! A' L7 s; A8 D - arg.sub_addr_count = 2;
+ y8 O3 V9 b3 P - arg.data_count = 0x18;) f1 J7 C2 R- Q+ {+ h+ Z! r' H
- arg.e2prom_cmd_sub_addr = 0x290;
, i+ h& M2 K8 v3 e8 G - arg.e2prom_cmd_data = buf;" L8 A! }5 ~% A2 W7 W: z
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
/ N8 C6 I# O. D - if (ret != 0) {
M$ B5 D* W- v - printf("Device %s write error.\n", E2PROM_DEVICE);" V# d% o) {" l" }0 q" d" B/ H
- return -1;) q7 S R# P2 i/ I: F' e& Y
- }
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- return 0; c, x5 _. G$ h- E) r+ u5 n
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- , I8 L. @! G" J( p4 H* [
- int main()/ ` i# L# W/ [5 o- ?& s- s
- {
3 l' y# S4 g* } - char c;0 Z/ k ^. x% n* J$ R
- int i, macs[6];" a( [( K& E& V) Y
- unsigned char mac[6];
1 W3 Y2 l6 ~& Z - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
, S: k" y$ Q ~' o1 E9 I - return 1;: w$ C2 z2 X; S- y9 X/ ?
* k* p, f# \7 |% o4 H- printf("Current parameters: \n");! ] u7 u; ~4 T5 A4 l
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);, |6 G c' `' H+ a
- printf(" STBID: %s\n", stbid);
" k/ ~. d7 M2 \7 y2 p0 O) } - 9 a0 k$ x8 J! E) b; o$ E; |
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
: i( o' r, J4 I* I0 G - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
$ g& Y3 h4 |; X# m - printf("Input MAC error\n");
( `! h7 c. j/ X: u0 S2 v4 \4 G! `2 E - return 1;
" f% o2 M' P6 S' i9 N: Z - }
; ?- B. x4 e# {% Q# V$ ~0 q0 _( q - for (i=0; i<6; i++)mac[i] = macs[i];
: j5 O5 l# ?, q% K9 w% _ - printf("\nPlease input new STBID: "); a0 f* x2 d+ G4 I; L* v
- scanf("%s", stbid);
3 y1 d& Y) H) N8 ?! @ - if (strlen(stbid) != 18) {/ v! r% n% R7 {2 Q( g
- printf("Invalid stbid\n");
3 U* C2 k. z4 ]# F) w% x - return 1;
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- printf("\nNew parameters: \n");
$ y) D3 `8 f% I9 M - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);. A7 j, U7 P* m' t% W# {! \
- printf(" STBID: %s\n", stbid);5 o2 |4 K* L6 {4 w0 d6 K& R8 L, n9 A
2 f! d9 W0 N. A# }% d' @- printf("\nDo you want to change paramemters? (y/N) ");
+ U b7 P6 M$ L# O- Y) w& l X - for (;;) {
- g: k# P! V2 C8 p6 K9 Y4 M - c = getchar();" a9 V% O5 z1 \
- if (c == 'y' || c == 'Y')
) o, i5 ]4 `* B& c: J - break;
% ^8 ?' a- a$ ]; E2 a - if (c == 'n' || c == 'N') {4 x4 S ]) f# H5 H4 G
- printf("\nAborted.\n");0 u& z3 j ~' a2 O9 k P9 h
- return 1;
$ }1 u9 G" h" Y; E F+ Q - }
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- if (writeparam(mac, stbid) == 0) & n$ a& h- r4 b* d# A- p
- printf("Parameters changed.\n");
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- return 0;
; a2 n2 S! L0 F: `7 w! x7 @ - }
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