本帖最后由 0522 于 2012-3-21 23:04 编辑 % ~' z w w D: \0 [4 G
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修改的代码早有了。到今天不会编译。
- t3 {$ l9 x) |' e需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
- Z) c* q) s6 ^( Z3 p, T - #include <malloc.h>
( l. t' ^+ A. p. X. p9 ?6 }$ d - #include <sys/types.h>: U4 y7 \" M6 W
- #include <sys/stat.h>9 n6 Z ?3 X- `/ W7 X$ ~4 O
- #include <sys/ioctl.h>
' J4 j3 {1 u) @ |1 A7 U - #include <stdio.h>: c' r: F7 D% ?, O
- #include <string.h># N- l- e" E2 Z* |5 C. _
! Z' o, p1 _6 b& Z- typedef struct {1 P# z9 Q& R! M8 |
- unsigned int e2prom_cmd_sub_addr;0 F7 X; K: o4 q! J+ L5 k' F
- unsigned int sub_addr_count;6 P* _3 W. v4 }& h) g5 f
- unsigned char* e2prom_cmd_data;& D0 N) Z/ P [- ~8 L2 y
- unsigned int data_count;
9 z& ^4 I8 |* } - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
7 O1 v4 ?8 T( `9 X" Y; e - #define E2PROM_CMD_WRITE 2
9 {' c+ `, l7 H - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"0 S& V ]1 q$ I, J9 Y- u# V
Z% J% M' Y- f4 a1 j- static int readparam(unsigned char *mac, unsigned char *stbid) E; `" P. | [9 N
- {
- Y! R+ {7 z- c$ u8 W - int fd, ret;
4 I& X8 o- n& U% ~! Q: q y - e2prom_s_cmd arg;
/ B) C$ q T8 |4 _3 ? a - unsigned char buf[0x18];) l: z" X/ W) e* [! F: d
" [$ `/ g) n2 \. B' e7 f1 T2 ~- fd = open(E2PROM_DEVICE, O_RDWR);) z* S, W, P2 T' |3 z8 j
- if (fd < 0) {2 {: q: L! k. t
- printf("Device %s open error.\n", E2PROM_DEVICE);2 z; j9 K" C- _3 k- I P
- return -1;
+ n, Q! }+ ~+ p3 v( M - }
[7 M9 Z# L: M - arg.sub_addr_count = 2;. ~8 a; C) D5 g4 ^
- arg.data_count = 0x18;
3 b! E& o5 X- H. f/ m( A - arg.e2prom_cmd_sub_addr = 0x290;
7 D" X- G/ y6 Q2 I/ X ~6 {$ h) S - arg.e2prom_cmd_data = buf;
5 C+ C% j) v% G1 a4 v, [ - ret = ioctl(fd, E2PROM_CMD_READ, &arg);' ]4 |; Z; j' r3 b3 y
- if (ret != 0) {0 [. p% J4 f) e0 v- \4 n
- printf("Device %s read error.\n", E2PROM_DEVICE);
" h8 n4 @8 ]" ]8 y( H4 F. P% C) } - return -1;- f; o9 d1 l) x
- }; g1 @8 V6 e) k! H
- memcpy(mac, buf, 6);- [6 _* j" U5 _# \
- memcpy(stbid, &buf[6], 18);
9 x% J0 Y/ V- y - stbid[18] = '\0';
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- return 0;
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- ' H7 X& ]/ o4 X; X' A' q
- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;: F/ O s- A% a
- e2prom_s_cmd arg;' V: g+ _ n5 o
- unsigned char buf[0x18];; I& V$ O. F2 j- C: W3 Z
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- memcpy(buf, mac, 6);
9 \% p, b$ I- }$ Y* L- \5 l - memcpy(&buf[6], stbid, 18);- j2 h Y1 _0 n% ~
- fd = open(E2PROM_DEVICE, O_RDWR);
" |* I$ d, V* N7 H$ N - if (fd < 0) {
P/ T5 B+ `% Q. j) O - printf("Device %s open error.\n", E2PROM_DEVICE);
* a3 K4 `' X4 r( {! \: U - return -1;
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- arg.sub_addr_count = 2;. i6 F! l% @- p' l
- arg.data_count = 0x18;
) v$ b8 h% l7 q3 E2 r, j - arg.e2prom_cmd_sub_addr = 0x290;
/ V7 p" g, F4 W - arg.e2prom_cmd_data = buf;
- R) |" `1 a0 I1 d( j5 x - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);- C$ z3 K! @+ p+ z L' b+ r3 i+ W/ B
- if (ret != 0) {) ~9 N' M/ @( I/ R
- printf("Device %s write error.\n", E2PROM_DEVICE);
8 }2 j7 r$ J% o/ j6 K( i8 Q. E7 x+ m - return -1;
! I$ ?- t* B) G* J0 Q5 n - }
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; B! g6 D3 R1 L1 S- return 0;/ n* F7 L' x4 V0 V5 G' F+ |+ F
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- int main()& X/ h6 z+ Q- u' a5 d
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- char c;
& R7 p) y1 j0 D$ U9 x - int i, macs[6];
8 u* p% |, C, ^ z9 o - unsigned char mac[6];
& }3 B7 y @' V% v9 F' C5 t' ? - unsigned char stbid[256];
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! S% ?/ o( {& m) B R8 G8 z3 }- if (readparam(mac, stbid) < 0)
0 p8 E4 ]" R, @$ l - return 1;6 L" A) ^/ h7 ` G/ x3 k
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- printf("Current parameters: \n");9 B: f6 D) Q1 I8 ~4 D1 g5 P, r
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);/ q0 @" ?2 c! S' p8 E. r8 C8 e3 i) S
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
9 m9 k$ _& `2 m' g4 x) `% Q8 u - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {$ x4 }2 F7 G h# ~( l$ J
- printf("Input MAC error\n");% _4 _! t: m U' y; K9 C) \9 a
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];! \7 M" t3 l: z& y) _
- printf("\nPlease input new STBID: ");
; ]" D2 }( k% P* i* d8 t3 Q3 D/ e/ q - scanf("%s", stbid);
- @0 w: `8 D( q9 F8 \- q1 l$ |: E0 i - if (strlen(stbid) != 18) {' m9 S! e' s* P5 w( `% L0 t W0 M. p
- printf("Invalid stbid\n");
3 z: T2 S( M/ Q* b - return 1;
& s6 p0 S/ W. f% u# N1 x - }) q, ?8 S3 W+ O+ m* q. g9 d9 {
- printf("\nNew parameters: \n");
0 V9 q' [" e, J* S - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);1 F7 N' E. M' ?5 `% `( n
- printf(" STBID: %s\n", stbid);( q/ q+ k" D& f( Y- {" E
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- printf("\nDo you want to change paramemters? (y/N) ");/ E4 t L8 d" C: w# [- x
- for (;;) {
, f) l, s0 P+ y b5 [) a: K - c = getchar();
; O+ G8 w- l; x, i! P - if (c == 'y' || c == 'Y')
/ v1 W+ O4 t( t5 ?4 v8 ^' R X& D$ O - break;
9 o9 e6 Y# ^3 q' }$ j - if (c == 'n' || c == 'N') {0 b0 _8 _, u8 p9 Q! F$ F% U: O$ u
- printf("\nAborted.\n");
9 e6 L, r% l$ E, q - return 1;
2 G. y0 q: E# ^: g! [1 [! U7 [: k - }
# g3 K+ Y% H2 P' L# Z - }
, q9 z$ t+ }7 l$ }; T - if (writeparam(mac, stbid) == 0) " I A+ _7 l& ~. }! B
- printf("Parameters changed.\n");0 Z4 u o0 o; }+ r
4 a$ U) [- r3 w5 n6 y; x$ t- return 0;* L: L) b& X1 z% N5 V
- }
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