本帖最后由 0522 于 2012-3-21 23:04 编辑 , w- Y& t6 v4 N* Y
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修改的代码早有了。到今天不会编译。
) \6 @; l# W! _, T3 u需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>. Y' U. z; ?' E! n9 m
- #include <malloc.h>+ t" X9 N0 S# J5 G3 \2 R' u
- #include <sys/types.h>
# Q. c6 U" A F# `" l" d - #include <sys/stat.h>6 ~! F0 X+ v9 R( W7 u% E3 M% N& I
- #include <sys/ioctl.h>
! i( Y( {' v1 P9 H( ` - #include <stdio.h>
; L- c" ~" U- g) Y8 Z - #include <string.h> j- O0 \, d U' H% N5 i6 ~
5 j! Q% A" W, b- a* v t/ _7 R8 s- typedef struct {
1 ?- H: h/ y. K, B' I# E* [7 m - unsigned int e2prom_cmd_sub_addr;
/ @. f2 y' m5 |0 x8 G' ?) R - unsigned int sub_addr_count;
7 m- }2 g M5 G/ Z2 f! X - unsigned char* e2prom_cmd_data;
/ K" D% }2 B4 h2 J$ V - unsigned int data_count;9 D! l+ [1 D* w; I3 U* t# H
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1- U" R4 T+ K+ ^7 K( K! M) N9 B, R% E
- #define E2PROM_CMD_WRITE 2; V3 F, W' Y0 R# W8 K
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"# k' c/ o, K9 j. N& M: {
- $ R! v3 ?( X, Y4 ^( s9 P
- static int readparam(unsigned char *mac, unsigned char *stbid)7 l9 I( h: b4 J+ r* h" q- ]) J
- {+ y0 \5 t' j) P* K, f# c
- int fd, ret;
5 L5 c. a7 l2 R0 Z, B8 D - e2prom_s_cmd arg; Z% @6 T- E: u- k
- unsigned char buf[0x18];
- J4 t0 j+ C# W N" o& o c# S' C' c
* N- H+ M! g9 @- fd = open(E2PROM_DEVICE, O_RDWR);
' G# C0 ^, G! t( y3 J' s0 D: o" M - if (fd < 0) {
7 ?! d5 a# o+ S. O$ ~8 V - printf("Device %s open error.\n", E2PROM_DEVICE);
9 p( |: q2 R$ x) ] - return -1;: |# l2 g) E- M( @
- }
% @: M3 \% v" n! y0 q, _2 Y - arg.sub_addr_count = 2;. S$ w) j/ h+ v) V* X& Q4 p
- arg.data_count = 0x18;
8 X+ N% U/ ^. l - arg.e2prom_cmd_sub_addr = 0x290;4 _, \# a B" N, u/ b
- arg.e2prom_cmd_data = buf;/ ^1 v d+ J6 Q
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
o) e0 m# i# f# {* T8 t! k2 } - if (ret != 0) {
* b2 e' B4 `# ]' \+ K% E8 O - printf("Device %s read error.\n", E2PROM_DEVICE);
3 a! R2 U' _1 n9 B - return -1;
. H9 X& e2 _( z - }3 f; ^5 |( J' G+ w' Q7 e( K( c
- memcpy(mac, buf, 6);' A* |1 \, @( X5 ]( t( q* y: \- t. S
- memcpy(stbid, &buf[6], 18);1 p) o# G5 `9 @; ^
- stbid[18] = '\0';
1 Y2 S- }& z: u, p1 A: i; G+ h - & _6 |: W0 k4 q. n3 }; j
- return 0;
. _- | a$ x* g& b" i5 `/ E - }
- m* @0 i& N! X% c4 ]0 ~ - 1 z+ A$ n9 I. b; d8 A
- static int writeparam(unsigned char *mac, unsigned char *stbid)- E" F' J9 e5 [' n
- {1 j% C" s9 r; y5 a0 E( N
- int fd, ret;: C; z7 R7 K1 c# l
- e2prom_s_cmd arg;
. C9 q O9 D# x9 m- n/ @/ x - unsigned char buf[0x18];. j6 ]! _! g& s) p% @# d" P2 u
8 a# k$ L8 G1 h$ X v- memcpy(buf, mac, 6);4 |8 L" f2 `4 A M6 n$ g
- memcpy(&buf[6], stbid, 18);
" V) E& L9 J) s/ k( h - fd = open(E2PROM_DEVICE, O_RDWR);, G' d& v( c" C& [0 W: g
- if (fd < 0) {
; Y, z0 o3 N, S; [+ F+ D7 T; O: x - printf("Device %s open error.\n", E2PROM_DEVICE); ?& }7 d0 I) _! b
- return -1;
1 }4 {- y+ `+ k+ p5 a - }% Y8 N1 q) x: i
- arg.sub_addr_count = 2;
" Z' o$ v) b, d" n% }( b# b - arg.data_count = 0x18;
+ O$ Z/ T! N# S2 S - arg.e2prom_cmd_sub_addr = 0x290;
" v/ r3 S# B- T9 S* o! K( q0 N1 ^. \8 m# @ - arg.e2prom_cmd_data = buf;
4 K% o' H( X( |$ B9 P# F8 k - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
# q+ Y4 ^" \) ~8 q9 z" ^ - if (ret != 0) {% ^0 a* ?# Z2 }* x, S
- printf("Device %s write error.\n", E2PROM_DEVICE);
. V1 ?& m& R# O3 e5 R# D - return -1;# C7 N$ G9 o* h1 l( `- b7 G
- }
& R+ C: J: u+ Y! m8 _( n, t - 5 v+ I. K$ ]$ u, W
- return 0;
; C7 L. C$ R& u; {/ s - }3 Z/ ? j1 P8 y
" _) N1 v9 A# R/ H. p- int main()
- n7 w3 f% @. J3 f4 x; @: M - {9 c0 v, M' h5 x4 T0 F0 m: X
- char c;7 k4 Z6 k1 n5 A' |3 z) @
- int i, macs[6];
* ~! p* d" {+ T! W9 `) Q: V/ o& M* | - unsigned char mac[6];' b& `$ ]1 B1 `2 B
- unsigned char stbid[256];
: n! Z( G7 j/ x& y
! }$ B" b4 l4 e" H8 r+ N, i5 s: X- if (readparam(mac, stbid) < 0)
5 @" w7 |1 Y+ X4 ], E - return 1;
p0 C1 e* j/ E7 o5 p$ h/ s5 }
9 l* n9 W/ i! {5 O0 B7 g- printf("Current parameters: \n");) i2 ^& y5 G! l! u2 R0 U0 G4 C
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
% X# O1 F8 s2 s: N. z4 C - printf(" STBID: %s\n", stbid);4 j% K' }" ^! l' n3 {9 G
-
: ~2 ?2 P" B8 r" c$ s/ v9 W - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
6 n7 L) Z$ U4 i( A5 J4 M7 y - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
l* E& K2 O8 Q. G& E+ z5 h - printf("Input MAC error\n");3 h+ I- X6 n# R6 c& s
- return 1;
9 _ P& `5 s% A+ H - }1 {5 |3 d* z- S9 |+ ^9 V* ]
- for (i=0; i<6; i++)mac[i] = macs[i];1 r/ M1 @# Q! `' d, `# a
- printf("\nPlease input new STBID: ");
% Z, ^) }6 f t8 T4 x/ u- G - scanf("%s", stbid);
2 t: G. \+ Y) I4 G0 V - if (strlen(stbid) != 18) {
# b7 u* f2 T9 ?7 M! N - printf("Invalid stbid\n");
! O# n: E/ B3 K9 J9 ]' g5 y - return 1;2 x: Z/ y6 i* P, c* y
- }
! W/ M$ Y/ p( w' _0 m( f/ v - printf("\nNew parameters: \n");
. N- v# x: _4 O8 k8 z8 F - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);. q7 ^9 a" s+ Q" o& ]7 e, m
- printf(" STBID: %s\n", stbid);1 f+ z3 V- ~ U6 `
- - h9 ]& N+ J+ `
- printf("\nDo you want to change paramemters? (y/N) ");
& `3 u; f! N* u; s N% S Y - for (;;) {
+ {: S5 K( a4 i( f! n. Y8 | - c = getchar();% z# o3 [. c# H! ?" b
- if (c == 'y' || c == 'Y')
! {0 @7 N, j4 X( V2 a - break;8 i3 |; S7 X8 h4 s( t% A/ _/ R
- if (c == 'n' || c == 'N') {
( h) N0 T/ u- @0 z+ ]2 M - printf("\nAborted.\n");
, @# F! R( S2 c; e7 C - return 1;8 `% E7 M: ]4 ^$ y7 R; L
- }
" L4 _7 B- q& ~; { - }
" H6 I8 x1 f' G! a4 P$ Q - if (writeparam(mac, stbid) == 0)
5 a6 o/ O4 B5 j x - printf("Parameters changed.\n"); @6 }4 \# e" C, v# f5 W J8 J6 S9 t
- 1 L% U# z9 A9 x. f
- return 0;4 K# u; `. \9 ?6 D' b) q
- }
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