本帖最后由 0522 于 2012-3-21 23:04 编辑
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修改的代码早有了。到今天不会编译。! |& C( w! }1 s5 Z
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>1 d( _# i P6 ]4 u
- #include <malloc.h>
# F1 O }' M/ b7 z - #include <sys/types.h>
) g( @5 P9 L3 q ?+ h - #include <sys/stat.h>) d& P" Y6 x' V) A5 k6 A7 v! Q0 X
- #include <sys/ioctl.h>
; u) t0 v* U/ R+ p7 G* ^% Y - #include <stdio.h>
W, J& I0 r& }+ r - #include <string.h>
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- typedef struct {' m# r" g9 y& i) I% [2 Y
- unsigned int e2prom_cmd_sub_addr;
2 u8 n* E7 e" Y$ O - unsigned int sub_addr_count;
+ N. q7 v3 P: |4 k& M! T5 y - unsigned char* e2prom_cmd_data; s1 p/ }. @! ~: N. X9 A. r, R
- unsigned int data_count;2 ?& y6 q2 {7 j" w
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
8 k2 ^! K' z+ p2 l - #define E2PROM_CMD_WRITE 2
1 p$ ]5 g5 L) e3 t- H - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"# g& z3 L: B1 c
- 9 n$ g/ }- O ?7 D, t& d7 Z7 J9 ]
- static int readparam(unsigned char *mac, unsigned char *stbid)$ B7 G1 j2 q7 P
- {
8 k4 G% J4 \: N% B7 l - int fd, ret;& N& ]% C5 V( I6 @' |
- e2prom_s_cmd arg;
7 W' r; z5 |# U% @* Q- e - unsigned char buf[0x18];6 G' x/ A+ g1 ]0 i( O6 ?
, y# ]* p1 t' p' ~8 y- fd = open(E2PROM_DEVICE, O_RDWR);0 n* s0 S6 s# p/ c
- if (fd < 0) {! \8 K. h R! H. l& s y6 y3 A$ u
- printf("Device %s open error.\n", E2PROM_DEVICE);
+ D) W5 J% C, y% a) \ - return -1;
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- arg.sub_addr_count = 2;* ^# _* S* F# {( k( S0 M- i
- arg.data_count = 0x18;2 P5 ^9 M J5 n! a# f" J
- arg.e2prom_cmd_sub_addr = 0x290;
5 _3 N/ I7 b! B& n/ y; t6 _* } - arg.e2prom_cmd_data = buf;% Q' X% G* I8 y# ?( f
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);$ _2 z( l& |6 ^# a
- if (ret != 0) {/ X) [& Q! ~/ d/ a. c- i5 m
- printf("Device %s read error.\n", E2PROM_DEVICE);
. C3 b. w6 v5 f4 O" ^ - return -1;8 ]( t) C; M$ U0 e( x; t
- }+ s9 l+ D8 y2 z: b3 i
- memcpy(mac, buf, 6);& [5 z% N+ W$ s( R' i7 s; ?- k
- memcpy(stbid, &buf[6], 18);! Q# f+ m( ^. D- Q
- stbid[18] = '\0';
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- return 0;8 N4 o, I. G! `& @. p6 j, B; f' D
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
: s' w% c3 ?9 E) \& Y& w - {
! f2 e% Y; t; u$ h" s9 ~ - int fd, ret;
4 `& L+ p! _; `/ f1 a( J - e2prom_s_cmd arg;
/ d( {: d! S0 U- q - unsigned char buf[0x18];5 f4 j' @' W1 ^9 j- [( P
3 }: d$ C( Z7 S2 L- U- memcpy(buf, mac, 6);) h" w( P& s! v6 }0 b
- memcpy(&buf[6], stbid, 18);
! O$ e' l5 o0 y& q% i3 }' x - fd = open(E2PROM_DEVICE, O_RDWR);
+ ~' G0 d/ w# Y; O. c - if (fd < 0) {
* u! a6 o$ K, m+ h2 q$ R6 `1 ? - printf("Device %s open error.\n", E2PROM_DEVICE);
6 }4 `# l x: j/ [: o- Y - return -1;
& B7 ~; h/ A: {! n6 Y, y. ] - }
0 M! ?1 m# w0 q5 i$ \. P - arg.sub_addr_count = 2;, `! i! r( e# n* K7 r7 o1 g9 |
- arg.data_count = 0x18;9 {- R+ R* a- H
- arg.e2prom_cmd_sub_addr = 0x290;4 X6 d* P8 t1 e) j# \% z4 M& E# x- C4 A
- arg.e2prom_cmd_data = buf;
( }6 X: D/ x) @) G, T8 F$ M - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
2 l2 m! Z: T0 O3 |* M& Z - if (ret != 0) {
% P! T0 S" I0 r- U9 Q- E" \ - printf("Device %s write error.\n", E2PROM_DEVICE);# [2 k" z, R- G' J( M7 N$ H$ o
- return -1;# t, r8 c5 D1 L
- }
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- return 0;6 \; o! g; V y" V* X9 h* h6 L
- }
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6 |8 e5 O7 Q$ z# ?- int main(); c' z* |1 z) z
- {# X- f2 S- T: ^$ y
- char c;
& u! D) o6 o2 n5 h7 O( O$ Y - int i, macs[6];
) \0 [1 C/ m2 }3 j d2 V1 F; j - unsigned char mac[6];
; D, e8 R0 K* k2 z - unsigned char stbid[256];
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+ e2 P, J) L; h, p5 o- if (readparam(mac, stbid) < 0)
, y/ n: _' H9 `$ p; r3 D1 m - return 1;. z# p: M q& E, K. l! U% v
7 R' O% {1 W4 ]- printf("Current parameters: \n");( ~1 b. S/ j3 ^3 [ M7 X6 M
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
6 Q, E& Y ?- u) k8 ?, }" W - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");% x9 X2 ^' e' B, _* s7 ]
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
* ^6 v9 s* K1 O) ] - printf("Input MAC error\n");% f. I2 ]7 i; N* d0 S8 D$ Q( e. |5 e
- return 1;7 |. g9 ]0 r! p* a& i
- }
$ }$ [* f; P1 p8 A - for (i=0; i<6; i++)mac[i] = macs[i];
1 {/ \3 Z8 @9 ~ - printf("\nPlease input new STBID: ");" [9 M; l3 R4 }1 J; }4 ~3 G; ~
- scanf("%s", stbid);
: |- V, p0 l. f- G' O" E' l - if (strlen(stbid) != 18) {0 Y! c7 c$ [2 Q8 ]7 G: G
- printf("Invalid stbid\n");
6 i0 q" ?& N1 Z1 C9 c! \' f& \ - return 1;
+ f7 x' M# K5 t. X C P# ` - }
" S% ?8 s r+ k. m - printf("\nNew parameters: \n");
' e1 t: h5 Y+ {/ ^$ i* G - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);4 G) C. N. Q' B; L
- printf(" STBID: %s\n", stbid);* T3 N* t; ~ V7 `# r
- $ V) f* b l. q& V% n; L
- printf("\nDo you want to change paramemters? (y/N) ");0 }' ~; w8 \- ^- x! P
- for (;;) {
2 Q1 n" f2 @& @9 z( w- Y* e' Q - c = getchar();( @# M% c' {. r! w* j
- if (c == 'y' || c == 'Y')
0 _! s2 c% x8 L( |5 f0 { - break;
2 {# j. f! b' m! F - if (c == 'n' || c == 'N') {
* u& P5 W/ d; i% \* @: K/ w - printf("\nAborted.\n");
. B1 K( ?, T9 h. B8 M p& f - return 1;
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- }* l5 V' Z1 E; ?+ u
- if (writeparam(mac, stbid) == 0)
/ M4 B' N2 v1 R( g8 J7 v# K - printf("Parameters changed.\n");5 e" ?0 X2 o6 m: Z5 r
; ?3 `$ ~: M" b5 w# Z$ u, S Y- |- return 0;: P& H) Q2 h( U( ?( m
- }
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