本帖最后由 0522 于 2012-3-21 23:04 编辑 3 o" J: i, t# W/ W/ Z0 ?/ H- \
2 D# a R1 B' H& N6 m- X& y$ s修改的代码早有了。到今天不会编译。
8 p% k' c" K0 G' y7 Z/ {需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
8 S" _9 Z( F6 A* ^) d - #include <malloc.h>& f0 j* U9 | d, s$ j
- #include <sys/types.h>
+ ]9 T1 N% k3 O) {3 O6 v: r - #include <sys/stat.h>
1 P* S& v: }2 }- m - #include <sys/ioctl.h>
) K. r# U l9 V - #include <stdio.h>
0 B6 `, L5 d/ I& }% R: r4 \ - #include <string.h>
- J2 [& {5 ^0 m; t0 r - : a/ Z. r; ~- a6 P. [
- typedef struct {
9 {+ T i7 m# [# u( N3 d+ G - unsigned int e2prom_cmd_sub_addr;# \0 ^! I2 d4 n* K
- unsigned int sub_addr_count;
5 T+ w% r* o/ O/ Y: s5 Y - unsigned char* e2prom_cmd_data;" f# P) ^- B% n. E
- unsigned int data_count;! p0 Z) @2 n/ C) [. r' U; |' g2 f
- } e2prom_s_cmd;
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/ _1 G5 ]2 i1 |. B+ H- #define E2PROM_CMD_READ 1
l8 E0 m' W/ ]; `* J' b/ j, C - #define E2PROM_CMD_WRITE 2( ?1 U* R* G/ Q$ } Q
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16". u( o# v. ~8 y* w N U1 z
6 Z5 m* h% r9 v, V8 v7 x. V- static int readparam(unsigned char *mac, unsigned char *stbid)
* q! _( I8 X0 u - {
% [6 L% M0 O% m- c4 D/ r - int fd, ret;/ R* ?0 X; f- F/ i' H
- e2prom_s_cmd arg;
% ^: L% c: V! b k; v& H0 E4 q6 B - unsigned char buf[0x18];8 l; A1 b% s. n* ]# u4 r
8 H* v8 S+ o7 l1 J9 Z! i- ~- fd = open(E2PROM_DEVICE, O_RDWR);, g- Q# U6 R: T+ {$ M! ^6 [, ]
- if (fd < 0) {& W. a% e U7 B% G
- printf("Device %s open error.\n", E2PROM_DEVICE);( X% j0 @. j" Q. X3 F( ~% f
- return -1;
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- arg.sub_addr_count = 2;$ V3 I# X6 R/ x/ N; i3 U8 k
- arg.data_count = 0x18;
$ C# U& K7 t$ ]1 x - arg.e2prom_cmd_sub_addr = 0x290;
; E9 p4 v) U, J& {0 B; s: u- f7 e - arg.e2prom_cmd_data = buf;" [; f1 z( h. k4 B* G
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
: C9 E0 D) B% l" [) @# J - if (ret != 0) {$ L, }; p8 s4 {( `
- printf("Device %s read error.\n", E2PROM_DEVICE);
o1 [. H1 z8 Z% m$ Y# M1 t - return -1;
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- memcpy(mac, buf, 6);0 q8 N( i& }2 n" b$ D2 w
- memcpy(stbid, &buf[6], 18);
/ Z* r4 ^3 o0 ~# D, M - stbid[18] = '\0';8 z( u# v" [& R9 w
- 7 K1 l& x* ?9 Y6 f" W
- return 0;
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- static int writeparam(unsigned char *mac, unsigned char *stbid)& o$ F1 M) ?/ z9 r, s
- {( \- t+ w8 i P
- int fd, ret;
& ^% @: Z; K3 l+ `6 r: K4 q R0 W7 e - e2prom_s_cmd arg;
# S% E; I" X0 x' a+ e \ - unsigned char buf[0x18];/ _7 o! c& Y5 k
- & u. G. Q; P" @
- memcpy(buf, mac, 6);: f. h! \3 S8 D l& V1 P
- memcpy(&buf[6], stbid, 18);% V* j: ?3 j( a H J- |
- fd = open(E2PROM_DEVICE, O_RDWR);
5 D1 d( {2 d) n0 c2 C8 O - if (fd < 0) {3 U$ D/ A8 c( e$ ?: g% j- P
- printf("Device %s open error.\n", E2PROM_DEVICE);. N' V, \2 P6 N3 f w
- return -1;
8 |, ^) X( S9 I# W$ C) n& H0 F7 f - }
. T6 c# \9 w, N5 T/ D* ?: D - arg.sub_addr_count = 2;% \6 u+ j0 R* ]5 E( c
- arg.data_count = 0x18;
/ `* u6 }7 `* Q: m1 f7 C6 ~ - arg.e2prom_cmd_sub_addr = 0x290;
- K* H& D% I' H8 ?, f - arg.e2prom_cmd_data = buf;
8 C0 U4 L, u' Y+ f- o& o t - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
9 K# H, E1 h/ f& A* `6 u - if (ret != 0) {" X6 E* G2 P) h8 w4 d* K
- printf("Device %s write error.\n", E2PROM_DEVICE);
$ H5 n3 ^9 B3 [3 B$ N+ Q1 `6 A - return -1;
; l. C) ]# m0 ~& ^% S, g - }2 E9 W5 a, l) O' h- ^0 [# e" {
- * D2 O0 u5 c& b3 P
- return 0;
4 R6 r7 F' D+ \, X5 P; ` - }
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- int main()3 N* G, e" @; `) C1 D9 \9 _
- {$ b. X, z8 t0 Z" h
- char c;
. q" }2 r, B' d, D; P - int i, macs[6];
0 I4 W' ~+ h! Q' @3 I% e+ w4 I - unsigned char mac[6];8 l6 W i5 Q$ j8 ]: T' p( b. P3 r
- unsigned char stbid[256];
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% [+ V) y) N, D( V3 j& y% @3 x6 ~- if (readparam(mac, stbid) < 0): h* q3 k# N/ w' [! Y. S
- return 1;* e4 w) @/ y1 L5 h
- g% Y3 h! b2 N+ _. j8 o
- printf("Current parameters: \n");
1 H: g" s8 ?# M; ]' f }2 ` - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
* d: j, w" ?7 C( ~. [ - printf(" STBID: %s\n", stbid);
: \. f' Y y) f h0 r7 S9 @& B2 f -
o& ?, g% ~: I- G1 G/ v; @% X1 } - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
8 L7 n, m8 u$ _ - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {& L- a7 X7 a, r7 R! } n
- printf("Input MAC error\n");
* ^/ A7 ]& o- w+ y: C( ^ - return 1;$ ^' O/ c2 c/ a: {& z5 k
- }
; R" B2 w3 x) w) h6 c - for (i=0; i<6; i++)mac[i] = macs[i];- a- K* f6 S3 U
- printf("\nPlease input new STBID: ");) g5 u6 m% |$ v9 `' u8 W, L" [8 n
- scanf("%s", stbid);' w ?( H8 p, ~0 H+ u5 K" e. Y! a& k
- if (strlen(stbid) != 18) {
g# h6 D3 @, H. o - printf("Invalid stbid\n");. \) e3 D7 I& t2 X r0 A: s9 n
- return 1; I6 l, h6 I0 g5 ?8 ~! u
- }
# p; `/ ]1 D7 }, S, Q8 ` - printf("\nNew parameters: \n");0 ~2 A. y$ z" F! F
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); q3 U& O( X8 L s% u
- printf(" STBID: %s\n", stbid);1 c5 ^2 Q# C |# ~6 V3 a! Q) A
3 J+ {$ ~" U& O8 p1 p; J. {; i( h- printf("\nDo you want to change paramemters? (y/N) ");/ O. t+ f' x( Z! {* S) l6 n! h
- for (;;) {6 G9 }; H7 c+ t) o _ s$ k: N
- c = getchar();
% }2 o8 r/ s7 U" i, H" |, F1 c( B6 J - if (c == 'y' || c == 'Y')% E% w, s5 L3 i2 I# [3 w) h: A
- break;0 q1 c7 X. U* t, ^& P4 ?) X' _$ P
- if (c == 'n' || c == 'N') {
& [7 J- h; E7 E - printf("\nAborted.\n");5 Z9 K, E) B. J* C
- return 1;7 u0 I* r! E6 T+ P4 L* \' u
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- }: T; ]: N" M; Z8 E% s
- if (writeparam(mac, stbid) == 0)
4 ~6 |( s$ t* Y; b' l# y - printf("Parameters changed.\n");0 M0 Q, k6 C2 M" o
, l. f1 h2 p0 U( s- return 0;
3 |6 V/ q( q; q4 M" R6 M' B - }
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