本帖最后由 0522 于 2012-3-21 23:04 编辑 6 U# s0 x- V' ~ p5 a
' \) M- | `$ G; V修改的代码早有了。到今天不会编译。6 a: e; S: n1 `/ K' g
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
" p$ T( s( E# t! k& Q - #include <malloc.h>' c6 S! P0 Z* ?4 I. F6 B- T
- #include <sys/types.h>- k V2 ]' j% E2 b) Z/ J
- #include <sys/stat.h>0 _! y4 z$ t) V. F8 u
- #include <sys/ioctl.h>
1 c) x5 H8 Y- p) v+ C5 t/ l - #include <stdio.h>
C* U" v0 m4 }' L - #include <string.h>7 N r; v, i7 L
- 9 Q; A) C/ w$ N9 A
- typedef struct {
5 K3 P6 I: x+ ]1 I$ f( m( i - unsigned int e2prom_cmd_sub_addr;
3 s# n9 F9 w' ?, C - unsigned int sub_addr_count;
" \! K' F1 D( n8 g - unsigned char* e2prom_cmd_data;
a! W8 x2 `) p" E* ~+ a( A9 M - unsigned int data_count;
0 h- b! B1 ]) [6 _ - } e2prom_s_cmd;: L% ` _2 g7 V
5 x7 N' x% |, S* T$ n- #define E2PROM_CMD_READ 13 }) T- f; M- s+ K5 t" z$ ]
- #define E2PROM_CMD_WRITE 2
$ Q& \6 Y* ]. O y0 T0 q/ V- A4 L - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"5 J: A2 T& F: E( y4 x8 B% ^) I
- ' u' K" q. Q8 P; n( u
- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
" L: J0 n' m l$ i8 F0 Q - e2prom_s_cmd arg;
! t8 I5 D Y8 `+ a+ {& B) \5 v; e2 ` - unsigned char buf[0x18];+ \9 A8 k/ r, y$ {
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- fd = open(E2PROM_DEVICE, O_RDWR);6 _- W+ ?+ _; ^" I E
- if (fd < 0) {) T' Q/ G/ W) |0 q: V6 J
- printf("Device %s open error.\n", E2PROM_DEVICE);
! F8 b' l5 x8 e$ m - return -1;7 o' x) G5 n6 t& I4 {6 K
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- arg.sub_addr_count = 2;' P. e7 e/ r" V/ e, \9 f0 G
- arg.data_count = 0x18;0 X, a3 K! l' ^$ j9 Z2 C
- arg.e2prom_cmd_sub_addr = 0x290;
2 F& y0 M( s+ A/ v" a0 ~ - arg.e2prom_cmd_data = buf;
/ J* L; J @' U- I# H - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
9 m9 u; |2 i/ f8 Q% V! [/ g - if (ret != 0) {9 M6 o8 h& T# Y: R7 p& t! ]
- printf("Device %s read error.\n", E2PROM_DEVICE);& n: ^. [) R9 D, m( s( C
- return -1;2 c1 w% j1 R& p! @8 m* H: ~9 b& k7 L5 S
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- memcpy(mac, buf, 6);/ f) ~, k' G# y+ O7 q, u0 c
- memcpy(stbid, &buf[6], 18);0 Y" S5 s- f! g) g
- stbid[18] = '\0';
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- return 0;' v( C4 p4 x; C$ d# a/ ?' V. j
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- static int writeparam(unsigned char *mac, unsigned char *stbid)" D/ F/ r' K4 M% @4 I
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- int fd, ret;9 }: Z$ l# x; `" T b
- e2prom_s_cmd arg;
/ e0 F0 S$ ?* E9 o8 q' w9 h4 r0 d - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);7 a* ?3 P' N2 f: b
- memcpy(&buf[6], stbid, 18);, T8 }$ p$ Z2 E+ P6 N4 y$ \3 j
- fd = open(E2PROM_DEVICE, O_RDWR);
9 }: x8 J3 ^( M H& U - if (fd < 0) {
% D( O' m0 N. B( ^: w - printf("Device %s open error.\n", E2PROM_DEVICE);: h7 O2 n" H- A% f$ o& ~
- return -1;
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- arg.sub_addr_count = 2;" D6 }1 }! E) W: R/ {
- arg.data_count = 0x18;! f+ n! W% p8 l- e8 w
- arg.e2prom_cmd_sub_addr = 0x290;
" W, g3 Z' s2 H$ K' W1 B - arg.e2prom_cmd_data = buf;- Q, ^9 j- Z; X$ m/ t
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
/ d% e1 ]4 }8 b7 [( L - if (ret != 0) {
4 J/ ^7 O. v: V$ c! k. }4 n - printf("Device %s write error.\n", E2PROM_DEVICE);% n0 l+ H9 A9 U- k+ `% n: B: O5 o x J
- return -1;
1 W( r* J2 n2 d4 E1 M - }
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- return 0;9 A2 r* y& L; V: P2 F
- }
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: V; D. W" F1 ?; C4 g5 C( ^- int main()/ i; }$ J2 K) C1 C/ f
- {
3 `9 L9 G# L/ P+ R+ u6 h0 c X - char c;
+ {$ H. y! C$ G; A& _ - int i, macs[6];1 ]1 z! e! m0 g* e4 \ a& F; D- U
- unsigned char mac[6]; ^3 \8 G0 N' S
- unsigned char stbid[256];/ C0 j& C2 O8 O; i
$ d) n& n0 j, C, }) V- if (readparam(mac, stbid) < 0)5 v6 w9 C$ V+ r. b" [
- return 1;
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/ b a. F4 J( j! r* z- printf("Current parameters: \n");
- n% Z5 y; v# k) s { - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
: R& u7 L+ Y4 v7 Z2 @+ v - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
/ \ b4 f& N9 G( A+ A, U, ^ - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
. K- k( H6 X4 M: O/ Q - printf("Input MAC error\n");
3 w. _1 T: w, ] - return 1;6 `8 J! ~: R& R
- }
4 P( s6 r4 ]8 {: { - for (i=0; i<6; i++)mac[i] = macs[i];1 | m, h s9 P8 d2 D @
- printf("\nPlease input new STBID: ");( o6 |0 N2 N1 }5 E6 m6 ]
- scanf("%s", stbid);9 z+ G# D* e" Q( Z( n
- if (strlen(stbid) != 18) {
, o6 a, L. x' F/ X& H; h0 A - printf("Invalid stbid\n");' `7 a" C% U. Y& w0 f9 j
- return 1;
- h4 Z* I1 o+ L - }0 L4 a7 v9 U6 G9 ]
- printf("\nNew parameters: \n");
9 y( H3 a) U( r: g Z Y - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
% v' z6 a! _6 X g3 n - printf(" STBID: %s\n", stbid);
- ^6 C- k* r0 q. e; T
& G$ o0 b$ u& l) o6 j! @6 |- printf("\nDo you want to change paramemters? (y/N) ");
( J0 z8 B* V5 t. U - for (;;) {& \( T9 D* j y5 N) O& F
- c = getchar();
0 |. F7 Y( f* Z- p5 x: Y0 U+ J+ G: l - if (c == 'y' || c == 'Y')
5 v, u) S/ i+ k j6 L. B/ i% T - break;+ p1 E% M# G- v. L
- if (c == 'n' || c == 'N') {
1 ^+ h5 M8 C5 x4 V - printf("\nAborted.\n");! M( @+ s; A0 e0 y
- return 1;& c3 r% {: k. l. F- S
- }$ J4 m' M2 \6 V, K3 ~
- }0 S# p; u1 K: H k9 y
- if (writeparam(mac, stbid) == 0) 8 V5 z$ m& ^- ?9 I' i8 A8 o7 r7 }
- printf("Parameters changed.\n");! ]9 \6 k7 L+ H1 b- e' U
2 r+ l2 D% @9 B0 h+ C8 G- return 0;
1 d3 v# U( u* m% b3 T% u - }
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