本帖最后由 0522 于 2012-3-21 23:04 编辑
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- |4 l x. H5 S% P2 I需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
^" f4 e# v$ x6 Y" t - #include <malloc.h>% O/ H6 \; `; [1 \) F& h. m O
- #include <sys/types.h>
0 ~5 \5 d% R' B+ [2 t' { - #include <sys/stat.h>
1 d b1 P" |% o- b/ i% J1 Y8 i - #include <sys/ioctl.h>7 O- ?% i: e; ~) I" L$ j
- #include <stdio.h>
1 G- y( \2 N5 z! D4 A - #include <string.h>; d8 a( p5 l* U, a
- 9 m4 |: \% Z2 P6 v* x6 Q. j& j
- typedef struct {
$ a0 P" C# {5 S/ s7 t( R( {" V. m - unsigned int e2prom_cmd_sub_addr;6 a, J9 j8 B; ~7 ^
- unsigned int sub_addr_count;- A! h- b2 r) e1 R% [7 O
- unsigned char* e2prom_cmd_data;5 E9 f( Q# L; _7 E' e1 K b
- unsigned int data_count;
' a, u: ` n. i, j: e+ s9 ^ - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1" W, V J+ |' K; K, ~" a; ~% x6 r
- #define E2PROM_CMD_WRITE 2
# v: m D, n9 O3 R: x - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"3 J; A( [1 {" o0 ]
- % C5 [. Y1 a0 ]& z
- static int readparam(unsigned char *mac, unsigned char *stbid)) C1 l& R# D* u% j4 y: K
- {
/ c/ Q* |! c! V6 z; G/ p O2 t - int fd, ret;
9 t( |+ I2 u; i+ a# W0 @ - e2prom_s_cmd arg;3 Y* C5 ]* d5 |; e S i! g; y
- unsigned char buf[0x18];( \" D: r/ I+ r% |
( o @6 y+ J3 G1 b) l9 P$ t- fd = open(E2PROM_DEVICE, O_RDWR);- D7 z$ p$ P' E% K$ l
- if (fd < 0) {
3 s, U2 A2 p2 Y; \. d1 g - printf("Device %s open error.\n", E2PROM_DEVICE);) E# m1 \& b6 `' b1 d; |* A6 E
- return -1;
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- arg.sub_addr_count = 2;
4 G7 }" s0 X9 G# v* r - arg.data_count = 0x18;& r k" h" G, d7 E+ w7 q# C6 Y2 V
- arg.e2prom_cmd_sub_addr = 0x290;( q9 a# _! m6 V
- arg.e2prom_cmd_data = buf;" e, I9 e3 x# q; c% ^7 M o
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
& U- J* ~( ~8 a( Q" v - if (ret != 0) {
7 [7 U" M/ L8 B: h# V2 R- V) C% v - printf("Device %s read error.\n", E2PROM_DEVICE);
4 w4 D/ H" O( a1 q - return -1;% q$ N( H7 A0 ~
- }
! s: N2 w0 r" ]/ ~, {, o - memcpy(mac, buf, 6);
% J0 L ]" p3 e( B0 ^$ ~ - memcpy(stbid, &buf[6], 18);2 p! i+ E- U/ x4 G
- stbid[18] = '\0';/ R) r$ P- ]5 i* k% u9 c( D! n
" C. w5 g3 M+ h4 W' D9 L1 l. \- return 0;, z/ [ ] j8 e$ A% H! ]
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- static int writeparam(unsigned char *mac, unsigned char *stbid)/ N, H& R! G, w; I# c
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- int fd, ret;
$ |: j( T( S" h& l6 D, n - e2prom_s_cmd arg;
6 V- Y; r$ c1 y4 t5 t' X# v) J - unsigned char buf[0x18];
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5 T' c% h1 ^* {5 C- memcpy(buf, mac, 6);
: ~' l; m, M2 [- E3 _# S" P' [7 ` - memcpy(&buf[6], stbid, 18);
) a. J; \+ x; M5 C - fd = open(E2PROM_DEVICE, O_RDWR);* @7 X: S- _% l1 V; I5 e$ n
- if (fd < 0) {
" U n0 u* H. E1 V8 T; T3 F9 _ - printf("Device %s open error.\n", E2PROM_DEVICE);
& i+ ~! _6 d) j& M% W, G9 x( ^ - return -1;
3 n0 o: A1 f+ H0 G1 d - }
( Z6 E, v9 q* F( C - arg.sub_addr_count = 2;, k& L/ D0 y" @9 I9 C3 Z* J4 t- Q
- arg.data_count = 0x18;! Q/ Q: J% }) ^" \4 j q* Z7 E
- arg.e2prom_cmd_sub_addr = 0x290;
; V- Z" F7 ?) B6 R! Z! a* r( J7 A - arg.e2prom_cmd_data = buf;8 j; v9 i5 f6 O- A' `9 T7 w# Z
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);4 E: k( n$ E9 S
- if (ret != 0) {4 w$ X' z6 H: j) O' e# d
- printf("Device %s write error.\n", E2PROM_DEVICE);
; p0 T J5 {3 O m0 @ F3 o - return -1;
* o! h9 ~; N" M/ y3 u, ~; l - }
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0 H9 {1 g. |6 L! k; T. O$ h. J3 `- return 0;* p- {& |6 @" e# ?
- }
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7 V( n+ A1 w8 U: Z. z. A- int main(), K/ D! t6 q! t W6 l _6 o0 Y
- {3 n9 i4 V& K& r0 \5 b T0 D
- char c;; H" ^9 Z7 ^( ]5 \, X
- int i, macs[6];
) T+ Q) d; o; H - unsigned char mac[6];4 t3 i# G4 @; m; Q3 s0 b
- unsigned char stbid[256];9 O2 t! J0 y* O
- 0 ?, `4 |. { V$ C5 z6 f( K' F" D
- if (readparam(mac, stbid) < 0)2 ?: }5 x# i" J( t* ^
- return 1;
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- printf("Current parameters: \n");
( W7 T) h9 o# ^2 n - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);/ I& `' F# N3 m$ [, ^
- printf(" STBID: %s\n", stbid);9 y7 v2 ~* U0 \/ ~' T% |" ]" u" {+ B
- 9 @/ h( ^$ m: G' s+ O% _
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
: w/ | X* d2 X; F, f) f" S! h% X' ]: k& L% x - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
# \1 B% s ^/ I1 c; N+ q. y - printf("Input MAC error\n");
" ?: U3 S8 u- A m# h Q7 Q - return 1;4 i! f" F4 s0 V, q: o* D
- }( ~- D' l1 p7 O7 }2 c5 m
- for (i=0; i<6; i++)mac[i] = macs[i];5 U- ?7 v; v* c& b
- printf("\nPlease input new STBID: ");# W; x/ b X4 A$ M; n0 t5 V
- scanf("%s", stbid);% G- J6 [7 A Z. e" `/ [; O
- if (strlen(stbid) != 18) {, b* ?0 E# E' P4 G3 G$ R
- printf("Invalid stbid\n");
/ V0 `) D' K$ y5 \( X - return 1;
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- printf("\nNew parameters: \n");
7 d @6 @+ i$ |4 C2 H* q - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);' ?0 J" f" K* E' @7 O) W
- printf(" STBID: %s\n", stbid);- t! q3 L6 n! Q2 N, z
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- printf("\nDo you want to change paramemters? (y/N) ");
/ _; @/ Y- z+ {8 v6 ~8 a - for (;;) {
x+ S( N5 Q2 N7 @) h& T% s& A - c = getchar();
2 H# ~- H8 z- [* S: z( M - if (c == 'y' || c == 'Y')
9 M6 z) L- a, |/ u& k/ M% _ - break;
/ V9 i% d- E0 Z; N. V - if (c == 'n' || c == 'N') {4 e* q1 t! D8 P! o- m* p
- printf("\nAborted.\n");
4 P O# b/ _$ n - return 1;
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- }
, u! i" i' W) H6 C& X - if (writeparam(mac, stbid) == 0) - m5 h+ \6 A3 E( Q+ v" h
- printf("Parameters changed.\n");8 R! y% x# d& }
9 Y$ |2 y2 J- l1 k( y' L- return 0;
2 Z$ P1 y( A1 q+ t0 @, s* s - }
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