本帖最后由 0522 于 2012-3-21 23:04 编辑 : N+ C' a) p; N4 J9 ?0 i9 ^* P
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修改的代码早有了。到今天不会编译。
+ o$ W# b: I e6 X需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
0 C: _# e; q- P! } - #include <malloc.h>
) {& N+ a) m0 T - #include <sys/types.h>
A' I5 d9 S( B/ m- g8 d/ c0 s1 R - #include <sys/stat.h>
6 v7 F) M& a, z7 K0 ` - #include <sys/ioctl.h>
$ O2 D& Q( @- U. V5 |4 [$ o1 k" d - #include <stdio.h>
) T# p' M/ I- e - #include <string.h>; S u& r. ?4 U. c/ ?- o
1 v c* U2 x1 h% w& S" p$ x' Z. m- typedef struct {( ?+ [& p" }4 J2 x
- unsigned int e2prom_cmd_sub_addr;# R9 H5 j' L8 ?. A' a$ C
- unsigned int sub_addr_count;
* H( K0 M) O0 k7 m$ s7 J - unsigned char* e2prom_cmd_data;
# |. K1 Z: J8 n, |- k/ |, j - unsigned int data_count;
]4 y& _9 V w$ M) j - } e2prom_s_cmd;+ H! ~+ h! z. e
- - N, k+ M# W) n+ `3 Z o
- #define E2PROM_CMD_READ 1
$ G6 w8 _: T* o4 e8 p - #define E2PROM_CMD_WRITE 2
% f8 k. y; ~8 X. M - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"0 I; U5 [7 r# @( y# D
* K0 t/ c* @) [! q$ Y7 m# \; e- static int readparam(unsigned char *mac, unsigned char *stbid)8 t! _2 _' x$ B+ z$ g7 L
- {) L( _- d* V, R$ a
- int fd, ret;: ]' @) U0 V1 `3 |! f# T
- e2prom_s_cmd arg;
6 |9 N& V9 z( k - unsigned char buf[0x18];* M/ q% J1 G" Z- K
. k2 P: o8 o7 Q5 J' d- fd = open(E2PROM_DEVICE, O_RDWR);
7 ^3 \) I) U& \: M - if (fd < 0) {
1 O7 b1 z" r& _1 o+ f/ M - printf("Device %s open error.\n", E2PROM_DEVICE);" A- q4 ]9 k3 o5 W2 P3 {
- return -1;( b/ x. V6 v; k' `3 h
- }
$ F& X9 o& z7 R \* S6 a; y - arg.sub_addr_count = 2;
$ ]( Y9 l3 H0 H$ P - arg.data_count = 0x18;$ l0 q+ K% A4 t4 T7 h+ o9 D
- arg.e2prom_cmd_sub_addr = 0x290;
" m) k- m% F5 l - arg.e2prom_cmd_data = buf;- G% ]! j$ L J! {0 u/ x
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);# T1 E. ^5 v- Y7 R \, A
- if (ret != 0) {
) t4 d. N% j; Q/ c - printf("Device %s read error.\n", E2PROM_DEVICE);1 Q4 \% i s0 g9 n+ h
- return -1;
6 _6 o! ^5 W1 ` - }
" F |2 w7 D: B# \ - memcpy(mac, buf, 6);
4 ]- f) P" Q* d - memcpy(stbid, &buf[6], 18);
3 f( W! Z# W0 P( K! W - stbid[18] = '\0';$ z5 n5 |2 A g S9 A1 B- L
4 F! u7 V) i6 Z+ F b- return 0;
- u3 v8 T8 r; C4 f! a3 b+ n - }/ e' B4 _( v. n1 Y4 v: a
- + ?4 X4 {3 g9 q) Z% y% K4 B
- static int writeparam(unsigned char *mac, unsigned char *stbid)
$ ]7 Y2 i9 ^. ? M& S) b3 h3 r - { r8 f+ V1 e9 D! d9 K" R% S
- int fd, ret;
3 o1 p t0 W8 Y4 @ - e2prom_s_cmd arg;
) L" ], c) e' z* [ - unsigned char buf[0x18];
1 a( G- I- [; R. a
9 N' r9 u% d+ p5 P( r- memcpy(buf, mac, 6);8 Q: ?. [) P, a. E D: D
- memcpy(&buf[6], stbid, 18);
& h2 h R; O7 ^8 @0 V - fd = open(E2PROM_DEVICE, O_RDWR);
6 _; ~( }7 v' P3 S4 |5 s - if (fd < 0) {% S' w C5 T% T1 i4 x
- printf("Device %s open error.\n", E2PROM_DEVICE);
6 H) \7 x4 H: ~8 y, |0 z" S - return -1;
1 H S' j5 Q q, k" w4 B9 b - }7 J! l6 e% [; v" K
- arg.sub_addr_count = 2;0 m- E" p/ v1 V) g
- arg.data_count = 0x18;9 q) n% f: G5 ^# ]5 U
- arg.e2prom_cmd_sub_addr = 0x290;& ^/ | |# L2 A; [
- arg.e2prom_cmd_data = buf;
5 R; K* `) k& H7 F `6 \ - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
$ D) e. f* i* v - if (ret != 0) {! t$ D. j$ |% Q, h
- printf("Device %s write error.\n", E2PROM_DEVICE);
5 s3 e1 E7 W6 b1 }5 o; ~! m; t8 |* a - return -1;# L" |& E( q0 ?. u8 b' F/ r/ @
- }
$ S# a- H$ c3 ^% V; a7 S: C - 2 [- q0 W4 Q. c5 e( M
- return 0;
7 z- t' P$ j" H4 R' a5 D - }6 M/ g$ i9 ~2 Y+ A* N, N
' l; h: e0 G4 M/ s" y4 q3 M& J5 P- int main()+ E0 V5 Q2 B( M& {4 |# q
- {
+ X" |% ^0 \8 \( u! K - char c;2 c; P: @' {# y( j& {: c# y5 z) y: v
- int i, macs[6];7 D2 ?# W% n: r8 E
- unsigned char mac[6];
: z' Y5 q- N+ z+ e8 r6 I( K - unsigned char stbid[256];0 Z9 |: P# S" V2 F6 b1 N0 r# N
7 [( B+ ]6 ?- k5 ], f. D- if (readparam(mac, stbid) < 0)
9 `0 z6 t b4 L% d - return 1;' R c8 {7 U1 N
3 n/ }- y* n- e% _+ ]6 d* C+ K+ {- printf("Current parameters: \n");
/ l% j7 G8 f. ~: j# G - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
) j2 i8 t: D* q* y. n/ B& q! x - printf(" STBID: %s\n", stbid);
2 ~# b8 @% ~" ~3 S - 2 e E% h: j' @- t5 D
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");! j- y' K9 Y5 d* ]+ d
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {6 b1 a: i4 k5 L, i9 j6 N
- printf("Input MAC error\n");
1 }! H$ T# i. _( H4 Y6 d7 z$ ?+ w - return 1;& i- t$ }+ D" d% G% c3 W& P
- }' X) R8 u! l8 z# P
- for (i=0; i<6; i++)mac[i] = macs[i];
4 N( |3 \! i* }. ?' f5 u/ O. ` - printf("\nPlease input new STBID: ");
- `% h. y9 C+ w; H! ^8 c! f6 r - scanf("%s", stbid);
. s0 z* n, k- X$ w( _1 g# N - if (strlen(stbid) != 18) {
8 v% w# z4 R0 F0 y% z2 w2 ` - printf("Invalid stbid\n");& l: \2 g9 d: n: s$ Z
- return 1;
: S& M* i$ @- B: m# | - }
+ W( l% f4 O2 E0 j8 E - printf("\nNew parameters: \n");
5 r* }- G# ]# t7 l4 i8 |+ ] - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
: ]5 `+ ~" t0 ]+ j" b3 g; y4 q - printf(" STBID: %s\n", stbid);; L( U3 G/ u9 \% X2 R9 v
' o1 w9 w2 X* O; ?3 y! g- printf("\nDo you want to change paramemters? (y/N) ");- W0 S" i. U; p1 y& j' M$ {8 o
- for (;;) {
{ I" I9 g6 ~0 F7 T9 O - c = getchar();
5 f1 M2 h/ S, M9 p6 g - if (c == 'y' || c == 'Y')
) k7 G" w/ l- W s7 N. L0 V - break;
; x( Z3 |/ f: J( A- s/ s) Z- n - if (c == 'n' || c == 'N') {
3 {+ [0 ^5 u; Q6 X7 W! f - printf("\nAborted.\n");6 y8 S: V0 R' k t# B6 W% P0 I
- return 1;
/ x6 O+ m5 P. O* S - }
- g }4 {3 C- ?5 L! g; t ? - }
4 m! f* j) R+ z - if (writeparam(mac, stbid) == 0)
, s+ P. z$ m( a" J8 }+ A - printf("Parameters changed.\n");2 y4 Y0 n' q- Y' J0 D# o6 ^
- 9 ~7 A( |) t; D
- return 0;* M" _% F( R) f/ }4 d
- }
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