本帖最后由 0522 于 2012-3-21 23:04 编辑 % n" } D0 d" t |0 E# \
( U1 m( a( J( I: V: P0 a8 F( @修改的代码早有了。到今天不会编译。0 U/ P- S4 E- S4 t0 `
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>2 g# ]( }+ a. d5 S) b: U% j
- #include <malloc.h>
- Q: |! j, h7 v- R- X% a( x* B - #include <sys/types.h>$ m# L: L ~. L2 O1 p
- #include <sys/stat.h>" R* l' F. C Y' |2 \2 z# t1 B
- #include <sys/ioctl.h>
0 O& a1 e% j j$ r; M4 f3 z, B- F - #include <stdio.h>
P. K. f# ]8 o, ~, t# k& u - #include <string.h>
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( j% q3 G7 P3 K4 E2 ]2 ?# q- typedef struct {1 v G/ U/ V* d" R5 p
- unsigned int e2prom_cmd_sub_addr;
9 ]- d: P$ Z4 |# @! p8 D* @6 w4 S - unsigned int sub_addr_count;' s8 G2 |( v9 ]! p1 j7 d
- unsigned char* e2prom_cmd_data;
# f" r- `) k# _4 y - unsigned int data_count;
4 W/ R1 M. Y, I. c+ D# W - } e2prom_s_cmd;
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; Z ~9 r1 R3 i) M2 r4 c5 j% u- #define E2PROM_CMD_READ 1" _% T3 y1 K% P7 J- o
- #define E2PROM_CMD_WRITE 2
& D: F: @# f# S) d" ]. P - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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. d3 v9 y+ F4 y2 h0 Z3 s- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
/ M' {0 F" {3 [+ V - e2prom_s_cmd arg;3 F5 { D% \' Y4 n2 ^
- unsigned char buf[0x18];7 G( x) M3 ^1 I/ ^8 m5 @$ V
- ; ~& C; ~$ L3 X. v' Z3 C
- fd = open(E2PROM_DEVICE, O_RDWR);3 r8 s8 p/ D& Q f5 [: L
- if (fd < 0) {
* B. i" ^2 V: e! T - printf("Device %s open error.\n", E2PROM_DEVICE);
% Z" s% U8 J( Y/ v& E; b - return -1;
' C* K5 n( O- q! r" ^$ R - }
" P6 q% T, b( e5 O R' ?% v( k - arg.sub_addr_count = 2;0 _* F) w( V' H
- arg.data_count = 0x18;
1 k( f" S+ i4 ]$ t - arg.e2prom_cmd_sub_addr = 0x290;
& l& D8 J* q9 o' a - arg.e2prom_cmd_data = buf;( u5 ~8 ^% ^' u5 j/ n7 v0 L
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
* `5 J1 J$ O8 \8 q* h0 }$ u( u" E3 Y) t - if (ret != 0) {
! i6 Q4 [; e! S! c6 i9 h - printf("Device %s read error.\n", E2PROM_DEVICE);8 J3 G3 i) ^ _3 A) k/ q) F
- return -1;
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- memcpy(mac, buf, 6);0 w) y3 m1 J( a8 z
- memcpy(stbid, &buf[6], 18);
; U$ H, @7 I8 P- C4 |, n, u$ c - stbid[18] = '\0';
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* ?& f( Y/ c5 k6 c/ N- return 0;. w" @; x$ H# [% U& b2 y0 D
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- - c; g( v( ~ B
- static int writeparam(unsigned char *mac, unsigned char *stbid)
s* l7 G6 c- g! w" R - {
- u5 A1 R$ E: m( n4 L7 I* A7 v - int fd, ret;
6 W$ u) K9 w5 u+ ] - e2prom_s_cmd arg;
' }: _. |& N, R - unsigned char buf[0x18];
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+ G7 ]4 K$ n$ q& W$ p8 F# A- memcpy(buf, mac, 6);& \7 P- d! Z/ \5 t4 v
- memcpy(&buf[6], stbid, 18);% N2 c" }; C5 h0 d% U) j/ B
- fd = open(E2PROM_DEVICE, O_RDWR);9 Z" _ q; p' S3 G3 m2 R: ^* @
- if (fd < 0) {! }! O% b1 v- t, {7 Y
- printf("Device %s open error.\n", E2PROM_DEVICE);: G P0 C2 e6 C" H/ X2 D& ]4 n
- return -1;, [2 `* P! L4 _2 c5 v
- }
8 \* R+ W) w- l) j, y5 e* t - arg.sub_addr_count = 2;& b) k1 Y/ o" d! ~. ~
- arg.data_count = 0x18;
5 e) S% V0 ]: r% M( Y3 A0 ` - arg.e2prom_cmd_sub_addr = 0x290;* g- `0 n- V+ V+ Z9 q
- arg.e2prom_cmd_data = buf;- V5 S+ [/ Y* n& w: b a2 Q: T7 G
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
. B' H) s5 o; s T1 Y- I - if (ret != 0) {
- I" D! P. \9 k0 r - printf("Device %s write error.\n", E2PROM_DEVICE);* V& y. d2 [, q7 f% @
- return -1;
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( o" f; O( S: R# p) u- return 0;
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- # n$ J* t2 Z- |
- int main()
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- char c;
4 U! k( |2 M" H) S0 q# ^ - int i, macs[6];2 L% ~. h+ o9 L. Y, x
- unsigned char mac[6];
! i7 ]( a8 t& F8 v2 X, H6 k- m - unsigned char stbid[256];
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+ \: ]3 P6 G3 o% a: m% q- if (readparam(mac, stbid) < 0) t4 s6 |" l1 J/ |5 w. h8 s" u) n+ p
- return 1;7 S' T. _8 K, T) y5 e3 r/ S
$ e. Z8 v8 u2 g) f- printf("Current parameters: \n");! N3 e# a6 u1 d Q0 P' y( h
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);" ]1 W: H( a$ }* H
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
G. Y/ H" s* C: m! W8 b6 K - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {8 q0 l) Y% x1 S7 c+ @9 g: b
- printf("Input MAC error\n");
/ L! [1 b6 `1 m! I" H - return 1;4 g" d' i6 M& [- o
- }
$ A) I' f7 g; o9 O. F. p% j - for (i=0; i<6; i++)mac[i] = macs[i];% O% S* R2 E' `7 v/ X; x( ~* m9 D( l
- printf("\nPlease input new STBID: ");
. i8 A, w. x% x8 Z! p4 i, X - scanf("%s", stbid);9 _5 n( `' O' q5 g4 x1 ~6 h+ f) ^
- if (strlen(stbid) != 18) {# p" t3 _ [( |% s% M
- printf("Invalid stbid\n");7 k# i' f. s3 N8 {/ k
- return 1;3 V. ~5 L2 b3 n
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- printf("\nNew parameters: \n");8 K. t/ Q! T' T) K6 y
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);8 j- N: r' @6 a
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");0 y" L* p+ }% V
- for (;;) {
; p- ^1 o: k) [1 t; V$ F - c = getchar();
3 k& w8 L. V2 k! R5 U3 f - if (c == 'y' || c == 'Y')
$ X- g1 e3 F7 T - break;
# C# ?. l3 C8 L2 s - if (c == 'n' || c == 'N') {, i, x$ e6 F6 E4 X; D6 _1 {* o( }
- printf("\nAborted.\n");3 E! x' t* a+ [. S o! y7 x) H. W
- return 1;' R- M- r8 }/ p; Q+ q2 R
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- }" |- U( U3 @0 |* `
- if (writeparam(mac, stbid) == 0)
# |' I, ?) Q$ ] - printf("Parameters changed.\n");
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- return 0;
* I4 a6 t9 w. q8 f9 s% c - }
复制代码 |