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。% E& H; f7 E- R& [" J+ V7 n, v
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
/ i" w! j0 ?( O6 Y - #include <malloc.h> K) p5 U, o+ C+ f* {* X; [: Q
- #include <sys/types.h>
5 A. k# o/ ^ S. u' b - #include <sys/stat.h>% M% x' q! X# N* o' _+ C9 n* j* V
- #include <sys/ioctl.h>
2 `- J$ {" {5 H- E5 I1 F - #include <stdio.h>
! H9 T' ^+ k) o0 E5 c; U% s( v - #include <string.h>4 q$ P. z! e) A
6 N' D; i) _! W( V4 g; u- typedef struct {6 K2 B5 A9 T+ ^; H
- unsigned int e2prom_cmd_sub_addr;
7 i) D4 k( R: `2 ]3 d& W# n - unsigned int sub_addr_count;
; ]9 e- J! L$ e" W- Y- F - unsigned char* e2prom_cmd_data;
6 a6 w6 G) B& p3 z: j - unsigned int data_count;7 s7 @: |8 z2 _. ]
- } e2prom_s_cmd;
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/ L3 N h& a1 u- W- #define E2PROM_CMD_READ 1
. \# }- W8 _2 U: R) j" T& V( G( E - #define E2PROM_CMD_WRITE 2+ ]1 Y# w7 P6 w
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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3 {& c# |" \) J% ~5 W" g! Q- static int readparam(unsigned char *mac, unsigned char *stbid)- l. }, v0 k3 U* x4 x% n
- {
7 V- Z2 B4 v. G6 ^! p+ B - int fd, ret;, b0 A" q; `+ ~7 R3 T- Y
- e2prom_s_cmd arg;
! x' s$ ^# X# V$ c A - unsigned char buf[0x18];
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9 \' I7 _' t3 M/ T% s; P" Z- fd = open(E2PROM_DEVICE, O_RDWR);: U/ ?- Q7 G% U1 I3 L
- if (fd < 0) {! @- w7 ^. [! ]+ G, B
- printf("Device %s open error.\n", E2PROM_DEVICE);
3 E5 _: ^- F. a @) V) g Z- R - return -1;
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- arg.sub_addr_count = 2;, \. L) T6 G$ z6 [( C+ D
- arg.data_count = 0x18;# m% D2 c, w4 T, Z
- arg.e2prom_cmd_sub_addr = 0x290;$ |& E! n; F" ^3 f6 b5 p/ ?
- arg.e2prom_cmd_data = buf;8 x& P% T- f0 L p( s! `* U
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
* [! E1 w( ?4 e, P# E4 D* _- @ - if (ret != 0) {
% V- k1 a/ e% x' t9 _2 Q - printf("Device %s read error.\n", E2PROM_DEVICE);
& x: v2 z% j. E: p6 \2 l4 l - return -1;
# X/ Y. k" y8 J7 Q+ p - }
& A: f( N0 R( V4 n9 b2 M3 f - memcpy(mac, buf, 6);3 D% M% T7 N- T# k& [) O6 `* W
- memcpy(stbid, &buf[6], 18);
, u! Q1 d0 E7 F& c* g3 @ - stbid[18] = '\0';4 S0 }" O- M9 b5 M; D4 z
7 \/ ` i5 C- A9 J# C- return 0;
. c( k2 }3 q5 [5 Q1 G- O- N0 s9 r5 h. L4 x - }
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* M' ~! o! C( X: l: w( T/ G# q5 t' W- static int writeparam(unsigned char *mac, unsigned char *stbid)
" N4 A7 k f' |) _ - {
# |! J8 j! t% \8 t* u - int fd, ret;
- B( E0 _- T) e- R D( w - e2prom_s_cmd arg;
t3 i: |' H6 t% g; k - unsigned char buf[0x18];5 b9 c' z$ P0 }# g, ]4 E' B
/ d/ ] L9 I% |2 m. N* u# F6 o- memcpy(buf, mac, 6);
# l8 K5 A# Q& F# s' |3 O8 A8 L - memcpy(&buf[6], stbid, 18);
' j! h3 X. T7 ?- y. T5 D* L) O - fd = open(E2PROM_DEVICE, O_RDWR);" g. y( E* ]1 x
- if (fd < 0) {
: r+ C; `1 l& D: @ - printf("Device %s open error.\n", E2PROM_DEVICE);
- c1 T' P& ]: a( \ - return -1;6 K$ U$ x3 ^- D* Q! U3 l
- }5 [: `! F* r' L E2 [5 {8 ^
- arg.sub_addr_count = 2;' T: w! y7 J |6 W$ s7 C4 t4 {
- arg.data_count = 0x18;
4 `* R! O' i( j& a - arg.e2prom_cmd_sub_addr = 0x290;
z/ m1 A' M" X; B4 |! O - arg.e2prom_cmd_data = buf;
& P( u" L5 ~* ?1 X0 @- i - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);# q$ `$ S) x9 ~& \; x
- if (ret != 0) {9 E I0 n9 L) n1 w' e/ y
- printf("Device %s write error.\n", E2PROM_DEVICE);
" l1 I9 f. K: f/ w! e" t3 P - return -1;$ Z0 a6 G* j; F
- }
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) g# F2 Y7 d! F; ]. {- return 0;( `6 h. Q; u/ [6 l9 |
- }
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% [6 v1 h6 t+ C- int main()4 s4 D- z- `! O% ~& L5 B
- {
! Q8 G5 O* J9 J( Y4 b/ v0 e+ ~1 m - char c;
$ z7 _$ d* A5 A4 m - int i, macs[6];8 Y, }5 q! K7 p3 O2 U1 @
- unsigned char mac[6];1 a* ^* D8 b, s; w" x; D6 ^4 v
- unsigned char stbid[256];5 P0 E% Y" M9 q8 Y& K
1 \( i( a3 K Y" s- if (readparam(mac, stbid) < 0)# J3 D3 c/ ]' c, e0 x
- return 1;
& f# E. g7 K2 H1 b
5 |1 o3 @2 H9 v& g6 r8 }; }- printf("Current parameters: \n");
7 z! v: {+ L" H9 h - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
- [ B2 l' f! m2 ~4 t - printf(" STBID: %s\n", stbid);0 T u1 K# I" C+ r# O
-
/ k4 a$ _! \$ m6 H - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
0 f' [/ w6 K; ~ - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {! H) V5 K: g+ I6 v8 D* b
- printf("Input MAC error\n");
& `* s1 x( I/ w6 c( i - return 1;3 _: l! [6 F+ _# [6 s' x& W
- }
: Q, @( U+ ]* F8 a - for (i=0; i<6; i++)mac[i] = macs[i];
# g$ V( B2 `- R; |* L/ F - printf("\nPlease input new STBID: ");/ Z& r* E# g% I4 e% h1 l' L
- scanf("%s", stbid);! S" j/ _: v- h0 {
- if (strlen(stbid) != 18) {
( M* z, z" s h6 M) a - printf("Invalid stbid\n");
7 N' E5 X) z" Y' Q! U' D2 t( i, ~( E - return 1;+ l$ `) d9 E( `
- }
0 O: A3 O& O/ M3 n p- X, v& W - printf("\nNew parameters: \n");
7 l; s) G/ d. ]* V2 g - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
" P9 Y) j, t2 r5 Z4 F6 f - printf(" STBID: %s\n", stbid);" V9 {, I3 s6 J. m8 Z
- 0 Q+ u! ~+ ?! R
- printf("\nDo you want to change paramemters? (y/N) "); U) y, G1 |% [: \
- for (;;) {7 M; p3 n3 i; ]5 c) m& z" a
- c = getchar();* j2 M. O5 Y5 y
- if (c == 'y' || c == 'Y')
1 ?# v# l+ m1 m8 C6 P! x - break;
, G) D% `0 {, g8 \7 T$ ` - if (c == 'n' || c == 'N') {
. x% E t7 k) T( k - printf("\nAborted.\n");- n/ {6 S7 R4 \/ v& {9 h
- return 1;
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- }( e/ e4 P- I+ \& s; [, n
- if (writeparam(mac, stbid) == 0) 9 M# T4 s% |. e; \1 o# l+ M
- printf("Parameters changed.\n");
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- return 0;7 l) W' k D5 q6 X! }, H
- }
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