本帖最后由 0522 于 2012-3-21 23:04 编辑
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% ^6 f2 J+ ]5 T3 {& s8 @修改的代码早有了。到今天不会编译。
# A6 ?, F- f8 m: u需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>7 Z7 t7 _0 D( ~" V$ Z0 C: k7 {! K
- #include <malloc.h> ~, w' p4 x0 v) y% r
- #include <sys/types.h>) z5 b! z) q! U
- #include <sys/stat.h>
* U! q7 \" `8 `- u* o - #include <sys/ioctl.h>4 w- g [% V/ S3 {
- #include <stdio.h>
$ g4 ^) N; ?9 c - #include <string.h>
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- typedef struct {! }, d( d4 B& ~( ]3 R
- unsigned int e2prom_cmd_sub_addr; K. _1 v- p" v8 {# _
- unsigned int sub_addr_count;3 r, X! J' _# ~" C7 X' p% Q
- unsigned char* e2prom_cmd_data;
% |5 ^6 B5 [: H# G6 ]. Y& m - unsigned int data_count;- ]6 v" ]* @$ r- O
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
) |' f* m( r5 G4 H' J9 S9 o; m - #define E2PROM_CMD_WRITE 2
. C0 e4 e; k* `& w; B& d; I, B* | - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"4 W, C& F& h# o$ r) T' ^: q
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- static int readparam(unsigned char *mac, unsigned char *stbid)% i% s, U2 H- u" D2 M$ h$ U% X
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- int fd, ret;/ l- G5 m; M9 Y o' i
- e2prom_s_cmd arg;" G. G2 ~. z: C; [) }* T
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
7 p2 d0 J1 ^2 P( j& Z/ I% N - if (fd < 0) {: x B" G' {. w
- printf("Device %s open error.\n", E2PROM_DEVICE);
# f% G" J* r7 }* A: {9 p$ m - return -1;! s- L. N2 g! B9 }2 \
- }
" M A. j6 D- O - arg.sub_addr_count = 2;
; s7 w5 W2 L, ^" }; _ g( P" d7 ? - arg.data_count = 0x18;
. e' u9 ^0 [ e$ ?* X - arg.e2prom_cmd_sub_addr = 0x290;6 \( p' j' L; a
- arg.e2prom_cmd_data = buf;
" P9 d+ A9 Z$ A0 w - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
% V, P$ j' W1 M- O - if (ret != 0) {1 @; Z' J" e2 }
- printf("Device %s read error.\n", E2PROM_DEVICE);
; L# h" ?# J( i) Y3 P' ~( z - return -1;
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- memcpy(mac, buf, 6);) b( A& ~( k9 E9 K9 c; G7 C% e
- memcpy(stbid, &buf[6], 18);( u4 s$ X* ]1 b/ D& D
- stbid[18] = '\0';
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3 a2 d0 O C/ b4 x5 t6 K- return 0;; I- [! o( z2 t6 | n( R) T
- }; t" a- j% y# U! K4 s9 e
& I _7 L& E# Q* p7 R2 M, _2 k- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;# J0 r$ n& _& y4 u
- e2prom_s_cmd arg;
- M! |; _5 I) G$ F5 e, o& M( n5 V' T - unsigned char buf[0x18];
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* ]/ K: b8 p* ]1 H9 O' h6 v- T- memcpy(buf, mac, 6);& N; o9 [6 V/ Q- @6 f. L
- memcpy(&buf[6], stbid, 18);& R+ h6 i4 h: N7 Z- }% D6 F* L! j6 {
- fd = open(E2PROM_DEVICE, O_RDWR);; j0 x8 ^+ t+ y% Z
- if (fd < 0) {
P* H& T& _0 w1 u& y - printf("Device %s open error.\n", E2PROM_DEVICE);
' v5 H+ a" q" F - return -1;0 m3 g k( l2 b$ K% L$ P
- }
. e: m! Q: h$ U& K - arg.sub_addr_count = 2;
4 @4 M" J( ]8 g7 j; V - arg.data_count = 0x18;
- ~/ F2 @5 W$ J - arg.e2prom_cmd_sub_addr = 0x290;' B( R% a7 |/ k. Z
- arg.e2prom_cmd_data = buf;% o0 M6 |3 x5 l T" \, [
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);+ X+ s; ^4 i9 S
- if (ret != 0) {
1 l' p1 ?' a* p }5 n' R* i# I/ n - printf("Device %s write error.\n", E2PROM_DEVICE);1 w. r, e7 Q, h- u( M
- return -1;% Q3 B+ b) ^$ [5 I5 M2 _" @
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- return 0;
: v! a0 s+ i% b. b8 V - }; h, g: v2 I$ g
+ c# I* t2 v) ^ f' v+ N- D- int main(), h! }* W0 o2 |' W. R" _
- {
1 {) x3 u% a8 ~6 a - char c;
7 {* k4 N0 @6 o4 \5 Z5 c% m; V: ` \4 E - int i, macs[6];
" {" F$ `' Y7 w" r* D - unsigned char mac[6];
# z) q. [+ d2 F ?7 F - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)9 ?' `' X& V: I
- return 1;
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- printf("Current parameters: \n");5 q) f( @- f h& ]4 e
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+ R3 x6 D+ r( a# ]' w - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
- e# C2 T' e; d3 f P! O9 h" K - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {6 h8 i4 }! u6 ?1 K, [# Z
- printf("Input MAC error\n");6 y/ z/ H5 Q8 F4 X( w8 [2 h) X- B: i
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];0 N+ w: ?1 _1 e! T$ k7 W
- printf("\nPlease input new STBID: ");
1 h/ U9 X3 a9 q+ z# `# k0 e/ a: ] - scanf("%s", stbid);
6 ^" c' O) @) h* ~ - if (strlen(stbid) != 18) {2 m1 Q" M$ k1 c7 ~2 g1 p# z. q1 z
- printf("Invalid stbid\n");
% S4 ]" r( k0 Z: }6 I - return 1;
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- printf("\nNew parameters: \n");8 F. |7 z U% L
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
) o0 N: I4 u5 J - printf(" STBID: %s\n", stbid); _ [ L% v/ g8 t
# d5 O7 `7 x; G T0 i! N% E, B* j- printf("\nDo you want to change paramemters? (y/N) ");
+ M+ Q: Y4 [3 h; f! t - for (;;) {# Q4 h1 W9 G; ~4 y5 C
- c = getchar();
7 j6 p8 X& u* u Q - if (c == 'y' || c == 'Y')
6 _3 }! L' l5 Q% s' P2 U6 B4 } - break; ^! G1 m. Z! g0 a
- if (c == 'n' || c == 'N') {# ^& i1 s4 z$ A% k# @6 x& d
- printf("\nAborted.\n");: A/ E$ H: S. O g
- return 1;
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- }. B W8 I% f3 }' T z
- if (writeparam(mac, stbid) == 0)
( M+ X/ r' \: I; w0 M* j \ - printf("Parameters changed.\n");% _6 `* M- g- O
% S9 Y! p7 @( k9 z0 y$ p, R1 I- return 0;$ D& c, Z- W8 A- @( H% i* k
- }
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