本帖最后由 0522 于 2012-3-21 23:04 编辑 ! O/ h8 u. {# s1 \" V
" c7 n0 K, ^6 C/ N: x3 z3 C修改的代码早有了。到今天不会编译。3 I6 T* r: J0 Y- h G8 m: T
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
6 ]9 `1 j1 ?8 l* D$ g# i- } - #include <malloc.h>
8 S) h/ B. O3 _% o; x8 V - #include <sys/types.h>) @6 \( M) X7 J1 s/ m, E7 [
- #include <sys/stat.h>
) I Q6 {- K6 D# _1 q! z - #include <sys/ioctl.h>/ F4 ?! \: k7 y0 A5 @
- #include <stdio.h>+ M# v0 P$ L1 z8 ~' q
- #include <string.h>- B0 _' X' F! S5 h
* U0 r7 {6 T+ \8 b/ M+ g( Z9 ]- typedef struct {) d3 B9 D5 e# s8 c V# k
- unsigned int e2prom_cmd_sub_addr;
! |1 ~$ ~) R$ X# w# t) l - unsigned int sub_addr_count;' s! U# Q0 e. E7 u- G
- unsigned char* e2prom_cmd_data;- i9 v9 T$ ?3 ~
- unsigned int data_count;
5 n1 d7 S# V, M$ t' c - } e2prom_s_cmd;
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' X8 A6 r& a/ x- #define E2PROM_CMD_READ 12 K0 f/ C. ]/ O* q8 T9 \
- #define E2PROM_CMD_WRITE 2
9 N5 o1 L. d" ~ s/ G - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"; G2 `% c% l' P0 V0 G! o
) |7 d; r, p1 w* O( w) F+ [- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;% p$ e, l9 @. f8 e
- e2prom_s_cmd arg;
8 M) Z/ x, R) {: u - unsigned char buf[0x18];
8 y7 l- `9 h3 x/ a m' m' e+ m - 1 z. J0 V9 J \
- fd = open(E2PROM_DEVICE, O_RDWR);. d5 C) W3 W! U
- if (fd < 0) {
9 `9 J. A% x. X+ p! k - printf("Device %s open error.\n", E2PROM_DEVICE);
0 ?1 k: n* `$ @ - return -1;2 y7 {- A3 {9 W) M9 _4 h7 l; C
- }
4 e( f( {1 \7 u8 `5 {; b - arg.sub_addr_count = 2;
/ x' S/ R+ k1 i. } - arg.data_count = 0x18;( i- f% r m" Y
- arg.e2prom_cmd_sub_addr = 0x290;
1 I7 F& p7 ?4 _+ f* P - arg.e2prom_cmd_data = buf;
" g/ `/ g+ `1 p& f - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
/ e; i- J. j2 V6 } N - if (ret != 0) {
" J# g/ H9 K9 L. y - printf("Device %s read error.\n", E2PROM_DEVICE);
) o4 y6 ?, Z" o5 H$ q - return -1;
* t' Q7 S' {/ @! w/ w8 O" @5 u* ] - }
: A2 v) v( X& J( N/ o1 @" C - memcpy(mac, buf, 6);% Y& Q# C& Y4 v' O" H
- memcpy(stbid, &buf[6], 18);/ W) f. Y" C& v" V& j
- stbid[18] = '\0';% b% h2 ^2 @' }
- , d: |' k z9 @/ L3 i
- return 0;
6 J2 y; @$ r3 s8 i* r7 |* J K - }
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+ H: f* q4 ?) F5 J; j# A- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
' I8 z9 z: _5 ]+ ?, N& Y - e2prom_s_cmd arg;
; j6 y% y' }2 h% F+ k' t - unsigned char buf[0x18];2 K! ^5 i: }% Y B* h. e
- " S9 f2 x$ }6 o) x5 k4 t
- memcpy(buf, mac, 6);
6 e' P% R$ ?/ {* R - memcpy(&buf[6], stbid, 18);
8 j1 k( L0 q+ }1 @7 p4 h - fd = open(E2PROM_DEVICE, O_RDWR);
2 `/ L% b$ g* ~" y - if (fd < 0) {, p% g) y8 H. M& w, e
- printf("Device %s open error.\n", E2PROM_DEVICE);0 e( X- x! E, v& h4 ~" Q( O$ {% d
- return -1;
3 K$ s* u( \& K$ t9 q8 o7 e - }
3 O! r) @: g" j - arg.sub_addr_count = 2;/ g' E4 D* f |
- arg.data_count = 0x18;
% c) H, K5 d" S: I- a* S - arg.e2prom_cmd_sub_addr = 0x290;
1 ^+ M" Y/ ] V5 {* n7 t4 n - arg.e2prom_cmd_data = buf;
7 D) ~+ _. ]0 R6 g - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
$ R z' g" k0 e& o9 X - if (ret != 0) {
7 u% I) r. P P' E; ]! d - printf("Device %s write error.\n", E2PROM_DEVICE);( @ O+ u/ |$ A# ?4 W
- return -1;7 \+ B% K( q& y# F4 S% p- }
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- . C* {2 W3 t/ A8 M4 z1 ?
- return 0;0 ~. c6 K8 C" d- Z9 e, W
- }
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- int main()
2 ^ y& @, W6 x g: z% O! w - {2 \1 K, e, e5 _1 n& \
- char c;
8 q/ M2 h& {7 x8 u4 @ - int i, macs[6];0 C: B6 C5 v+ @3 z A
- unsigned char mac[6];
5 K9 c6 t3 r f3 q( z( [5 z+ X. u - unsigned char stbid[256];0 j0 k, k0 g3 X a. b, k
6 }! }% s( m9 v( N; C- if (readparam(mac, stbid) < 0)
$ V! U, d$ D6 W6 W9 u& a( X - return 1;
5 R) v1 k- `1 m9 a7 `" j
, w+ P6 U7 L6 m& ~- printf("Current parameters: \n");
* i0 T# {3 ?5 a9 E8 c - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);0 S3 k" R5 e/ @: v- U
- printf(" STBID: %s\n", stbid);
, Q+ K5 Q- a5 F5 f! t. a- j -
; S6 E, u! v, Z - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
3 x( P2 e9 z) b9 |( h/ T' y4 I0 ? - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {+ q* d* R/ E. d/ a1 T+ z( c5 l/ v
- printf("Input MAC error\n");
+ D- Q9 G4 q5 e - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];% a7 c* S. d- ?- g5 L% L, A" Q
- printf("\nPlease input new STBID: ");7 q: r2 Y% h( S# L
- scanf("%s", stbid);; f2 o" T% D" Q
- if (strlen(stbid) != 18) {6 Z" h+ G' Q5 L9 A P) N0 V5 ^ w* w
- printf("Invalid stbid\n");
' x: y5 l" T4 v; w! H - return 1;7 S1 E$ L2 W2 F$ C* w) W
- }
& J- ?8 L8 z9 m( `( v; a - printf("\nNew parameters: \n");& b" e8 |9 X1 V' r# M& t, V
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
4 V, U- I2 _+ K - printf(" STBID: %s\n", stbid);
4 ?7 N; B7 @& M( @, r# x! c - - {, {8 C7 n8 p6 A" N+ G& ]
- printf("\nDo you want to change paramemters? (y/N) ");$ w5 F, q5 c$ i; f8 |# I
- for (;;) {
' Q% x6 u( N/ o - c = getchar();% V3 ^8 F; E, I6 F) K0 f; E
- if (c == 'y' || c == 'Y')
7 F' V. l9 w0 l) M" r- f0 G - break;6 d* z8 b, B0 M8 x# J5 [% ?5 k0 T
- if (c == 'n' || c == 'N') {' A8 A+ u0 P5 a
- printf("\nAborted.\n");
) @3 x& O4 x% _& f& p, r7 S: n - return 1;
" Y; u* y1 F# Z @& { - }
+ R" V; Q0 M6 r4 g+ _* h5 O - }
/ k5 J' Z0 `7 f - if (writeparam(mac, stbid) == 0) ( h6 Q, P8 m( |+ u; H# e
- printf("Parameters changed.\n");
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- return 0;7 ] I8 G, z: Z2 _) t& R6 U I6 W
- }
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