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。' g1 f) ]" k1 q$ L" I8 _: l
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
" M! t, ^& |5 }" ^# n) O - #include <malloc.h>
' `( v2 e( W% @- U+ S% ?5 k7 O - #include <sys/types.h>
, d( u8 k$ v+ n# m( }1 J8 R - #include <sys/stat.h>
0 V! Y* P- F+ l* `" |0 d( e - #include <sys/ioctl.h>
* l( S; ?. f: N) n# ]% M0 I - #include <stdio.h>
8 L! T6 |% b3 l: c, M - #include <string.h>$ K- Z, t9 d9 [9 ^& @1 @
2 R" D0 a4 Z" f; o) d# u4 |; y- typedef struct {
; Z# W# q+ P4 G, M; O - unsigned int e2prom_cmd_sub_addr;- E- m7 R. ^" y
- unsigned int sub_addr_count;0 s: f! j) H1 B9 h
- unsigned char* e2prom_cmd_data;+ `; \7 x" m& ^; p" [. M* d
- unsigned int data_count;. Y& t7 k3 G. s: X5 h. n4 [
- } e2prom_s_cmd;& K, ]/ d, S, F; E' k) f) ] ?
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- #define E2PROM_CMD_READ 1
7 X- l5 L' V3 E - #define E2PROM_CMD_WRITE 2( S7 ?- m7 R9 G g
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)6 g1 s5 w2 i. q) q1 Z
- {# d- u; |4 g! v7 J
- int fd, ret;
% N: t I, v2 h5 x* {! t8 } - e2prom_s_cmd arg;, q" S" Q$ L. i8 m, k+ Z a3 R: x
- unsigned char buf[0x18];8 k& f$ {2 S% w" g5 g. p" h" { o
- # m( J. e% U; f* c+ I" D+ O- p
- fd = open(E2PROM_DEVICE, O_RDWR);9 M% ^# ` I7 L7 i% [1 b% p& n
- if (fd < 0) { f- z M/ I$ C8 ?: w1 Z; N$ D) ]( b
- printf("Device %s open error.\n", E2PROM_DEVICE);
- z+ e) l/ u; c9 ], v _ - return -1;
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* h# x) e/ k s5 r! R+ |2 l! S3 L - arg.sub_addr_count = 2;
3 ]* _1 O/ w6 m* c - arg.data_count = 0x18;! Z' t' w$ ]6 e. S
- arg.e2prom_cmd_sub_addr = 0x290;# s q3 T3 N: Q
- arg.e2prom_cmd_data = buf;
# C' R' }% f6 y6 d% b. o- A" e - ret = ioctl(fd, E2PROM_CMD_READ, &arg);7 I' a9 u# e. {. r, I
- if (ret != 0) {
, Y* v# H+ }3 f, b9 |8 o9 M7 | - printf("Device %s read error.\n", E2PROM_DEVICE);
7 {' W4 S+ {5 Q% g/ r1 Z# j0 ? - return -1;
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- memcpy(mac, buf, 6);
0 ~* @. T) d3 K' e8 G3 |0 W - memcpy(stbid, &buf[6], 18);* k1 B, o8 ]. O* G; m
- stbid[18] = '\0';4 B( R; F* j N% i7 Q) Z
8 l1 C" H+ l& H! t6 O- return 0;: n# n6 y S1 J# }' A* C
- }5 F( b4 K' a: c" v, s
5 A1 o D0 T" ]5 h8 _; ?- static int writeparam(unsigned char *mac, unsigned char *stbid)
' q, N, i+ h E3 b& R- B - {
2 V+ {: d: W% L- u+ i - int fd, ret;
% ?4 V3 n8 }- J, ? - e2prom_s_cmd arg;
8 _6 X9 ]. J; T - unsigned char buf[0x18];
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# n: J& T: O; b( c u, W0 @- memcpy(buf, mac, 6);
( }% ~( v+ c! r" h. R - memcpy(&buf[6], stbid, 18);7 _* f0 z" P8 U$ [# _
- fd = open(E2PROM_DEVICE, O_RDWR);/ g) l% E4 X. t1 q J2 `/ e
- if (fd < 0) { j- C1 C2 f8 w* X
- printf("Device %s open error.\n", E2PROM_DEVICE);
* ~! B' N" \# f2 B; u) `! o - return -1;! ]6 f4 ^& Z5 l9 T* {' Z
- }
$ w$ R1 n5 T( {9 D& i/ Z( | - arg.sub_addr_count = 2;. z5 e4 _- R {8 c' e; J6 s8 B
- arg.data_count = 0x18;
. O( X3 L" d- c$ w7 a1 G - arg.e2prom_cmd_sub_addr = 0x290;1 b5 W+ [( ^. ^, d) W
- arg.e2prom_cmd_data = buf;/ l$ T/ z/ Y* e$ l2 a
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg); Z2 z- ~" u& ~. l
- if (ret != 0) {9 x3 m5 Q# c. a
- printf("Device %s write error.\n", E2PROM_DEVICE);
" H8 i1 g2 ?* ?/ L, O: p - return -1;
. _ B$ [( ]$ f0 M, l* A1 ^ - }
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! V( o. ~1 f. V7 L- return 0;
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- int main()
" j8 A8 [; N m/ B+ v0 G2 j - {
$ J1 w/ e* _+ Z/ ^) X8 m/ A- Y - char c;4 m# ~# ~# F$ V8 j, x; b
- int i, macs[6];
( P p* ^% y" p8 A5 Q- X4 P - unsigned char mac[6];
; d m$ k4 n! b5 y* t - unsigned char stbid[256];3 E$ q& Z5 Y$ G9 z( v6 s. B D# D
- 0 x1 f4 }. {9 s4 z5 C
- if (readparam(mac, stbid) < 0)
$ M3 | m f7 }, Z0 s# \ - return 1;
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( Z: l$ o8 [8 {- printf("Current parameters: \n");, R9 N6 \6 w! q2 ^
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);4 I$ ]6 j/ q, t
- printf(" STBID: %s\n", stbid);
. m2 s+ i$ R/ @* Q2 v4 B5 W -
3 e5 o) ~3 \; ` - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");# X' `, F- [: v! L R
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
1 z, X. O( y+ w; G - printf("Input MAC error\n");
! [, M0 r- n! C | - return 1;
3 Y# [3 m& H' o$ K - }
% ^. n& `' t7 p1 d9 P - for (i=0; i<6; i++)mac[i] = macs[i];
. Z0 u& g0 o/ M: M, I - printf("\nPlease input new STBID: ");+ _ g/ B3 p" E- t
- scanf("%s", stbid);
3 {/ M: W1 _) l6 ^9 T, H - if (strlen(stbid) != 18) {2 f2 |- {0 o) m4 ^
- printf("Invalid stbid\n");* h2 P" f; u* ?
- return 1;
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- printf("\nNew parameters: \n");3 F$ r! ^ ]5 l( U
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);, ]! [ h5 E- L& k0 \
- printf(" STBID: %s\n", stbid);# r8 z4 p7 l% w" c
- 1 Y* f1 P e! C# n0 y5 U
- printf("\nDo you want to change paramemters? (y/N) ");" w" { C) ], A+ |6 n
- for (;;) {; z+ F- ~! p) o( w; H! V
- c = getchar();
( {; A6 v( g4 ?# X0 s2 X - if (c == 'y' || c == 'Y')9 p) T% \: V7 m) @
- break;1 @ F) H% s8 \# B A: ^0 x
- if (c == 'n' || c == 'N') {
I7 q+ C. o" f2 k* @9 T - printf("\nAborted.\n");+ n* q$ i& {" U+ t/ Q }
- return 1;
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- }
& R' E! \, X" Z" t5 L - if (writeparam(mac, stbid) == 0)
; O# Q2 \- C) h2 R - printf("Parameters changed.\n");( ]4 C6 f6 P: W) N( i
- $ I5 b' ?" R$ `6 c- x
- return 0;7 a: R/ E$ c; s5 s
- }
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