本帖最后由 0522 于 2012-3-21 23:04 编辑
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( O8 i) {4 q, T4 R: z9 V/ ^修改的代码早有了。到今天不会编译。1 e6 o7 D+ ^' V
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
; E; j2 g. K5 N - #include <malloc.h>
+ A% _: x4 v$ T- ]& r - #include <sys/types.h>, v& a; J) h+ O4 r7 | d
- #include <sys/stat.h>9 W* z$ ~# L6 e$ w
- #include <sys/ioctl.h>& ?# ^1 w: W. L1 g
- #include <stdio.h>. T6 d& P: |! @5 _2 p4 N- R
- #include <string.h>
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- typedef struct {* W! G! S1 R3 y! C3 ^
- unsigned int e2prom_cmd_sub_addr;
* Z! E) a' x9 r' T2 n7 W- ?' K - unsigned int sub_addr_count;2 r* O' n" Z' V% [# o1 ~# O4 T
- unsigned char* e2prom_cmd_data;
* E0 K" }+ ^8 r - unsigned int data_count;; m% p8 _. |' j: Q- Q( V
- } e2prom_s_cmd;
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4 h9 U. Y! s2 n" c8 C* p6 T- #define E2PROM_CMD_READ 1
$ \. n: @! y0 L; k8 c ^ - #define E2PROM_CMD_WRITE 27 E: C/ I8 x( |6 |% v$ [1 W
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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. Z* z7 b/ I3 u7 e5 r$ t6 `- static int readparam(unsigned char *mac, unsigned char *stbid)* r, C; M& P, m' H
- {
% i& |8 f! G: [$ A' g - int fd, ret;
: X# x0 E( ~" C6 ]0 I+ t# a - e2prom_s_cmd arg;
. [* h4 z/ _" K- {% Y3 |1 U - unsigned char buf[0x18];
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& B( y4 Z; J; d) u% l# l- fd = open(E2PROM_DEVICE, O_RDWR);# v7 R' |/ D( z3 Z2 n* a1 _
- if (fd < 0) {6 Q/ J3 t6 y9 i, V$ b& H
- printf("Device %s open error.\n", E2PROM_DEVICE);
7 v+ h- o3 w, x# J1 _ - return -1;
# H \0 F8 q8 m( x$ `. m: l9 v: r - }
- Z+ O+ P( L, C% { Z - arg.sub_addr_count = 2;
% T) T4 \' a3 P# M9 s1 q4 e - arg.data_count = 0x18;
% B5 J8 s- A+ [/ a - arg.e2prom_cmd_sub_addr = 0x290;3 }6 R8 r8 t# w; d( ^- G
- arg.e2prom_cmd_data = buf;
8 Z8 O. j3 ]3 Q0 b - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
2 t9 z8 v1 f4 e' v# v& @3 \ - if (ret != 0) {
$ C m/ u2 p( E3 C: v% Q - printf("Device %s read error.\n", E2PROM_DEVICE);
& d$ z6 y, E2 o+ M - return -1;
3 B' B. z+ K$ m+ H0 ^ - }
5 N3 c8 O0 n F2 l' h - memcpy(mac, buf, 6);. k5 Z' N% x( T1 {, \
- memcpy(stbid, &buf[6], 18);- Z6 ]& ^7 M) z' ^( O
- stbid[18] = '\0';
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: i2 I7 z. s5 q: P* ~6 `- return 0;* u% V1 l# C! l6 T
- }
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7 E; u/ y$ Z! c# i- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
9 m% G6 w- K {% a! N) J! [ - e2prom_s_cmd arg;
, N3 U! c: f- k, z6 A/ T - unsigned char buf[0x18];' M3 s/ t) z1 W* r
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- memcpy(buf, mac, 6);
* m9 S0 y0 N8 y - memcpy(&buf[6], stbid, 18);
6 C7 B: G5 V" t1 | - fd = open(E2PROM_DEVICE, O_RDWR);
) q* N+ ]( `. s |: k- q - if (fd < 0) {' B1 N6 D) S2 f& {+ |6 V8 [; Q, p
- printf("Device %s open error.\n", E2PROM_DEVICE);
/ Y6 b' X/ q! V% |/ K8 h, K - return -1;+ ~* U( D* V0 e& n% F
- }
1 v8 j% {) M; U. W$ I& _ - arg.sub_addr_count = 2;3 P) Y6 w8 ` g, B/ L% T: a- D
- arg.data_count = 0x18;
7 R: Q" G/ H7 i# |: I - arg.e2prom_cmd_sub_addr = 0x290;
; f2 O1 J0 b3 \- e+ N" I% l - arg.e2prom_cmd_data = buf;
: R9 V: B+ [) G% y* g; Z8 E4 g - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
. `- U3 [5 Y( t - if (ret != 0) {4 A q* C5 C! _! n$ T {; n$ l
- printf("Device %s write error.\n", E2PROM_DEVICE);- B: I5 l) H# t/ m/ _* {
- return -1;1 o; N, c( ?) x. Q3 G9 C! j8 l" f+ Z
- }
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- return 0;1 [' X. N7 e8 a4 V* n& _9 j! O
- }
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$ ?9 H8 n4 }7 z8 a2 v0 {0 |" l- int main()9 H9 n8 ]3 c5 R G" C9 U9 \
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- char c;( B! D( @4 v" A# t% M; N. y
- int i, macs[6];2 Z* K5 `' ^0 l* V% S# Y
- unsigned char mac[6];
% m9 l# P) a: d) r - unsigned char stbid[256];
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' c$ y0 s. X3 q) U- if (readparam(mac, stbid) < 0); e* A4 X9 a+ d9 T, W: \
- return 1;! h8 P: d9 X' @5 Z; I. b
- , B' U4 ? |% C. h( W: n e
- printf("Current parameters: \n");
8 j% K2 L; p! ] - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);$ j" H% }( y- z& p
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
3 u2 h. p: g/ U1 N: i' Z1 H - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
; v) y# O2 [5 I - printf("Input MAC error\n");7 f- i& Z8 N; a# R3 c# c, r6 x
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];2 H5 ~" y. l4 H: W$ P6 c
- printf("\nPlease input new STBID: ");
# ^: }# v, x7 F3 z - scanf("%s", stbid);, R! B) H. k3 e1 {0 v* J* n3 U
- if (strlen(stbid) != 18) {% U! ?6 `7 P+ @# d: A. s2 X
- printf("Invalid stbid\n");9 F/ t6 e4 J8 P. [2 D, R
- return 1;
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- printf("\nNew parameters: \n");1 t+ k% M* y L* Z& S. Y
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+ d5 @+ |! I {( [% O2 r0 d$ {" y - printf(" STBID: %s\n", stbid);% g2 ?' H3 i c: V% j; B; U
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- printf("\nDo you want to change paramemters? (y/N) ");3 W. t& @" @: m4 O4 E
- for (;;) {
6 I' t3 h+ I; D, I$ Z, H! u$ Y - c = getchar();
4 ?9 L. O1 z+ a% F - if (c == 'y' || c == 'Y')+ L' G5 x. Q/ R
- break;. W7 \/ o( F8 S% U
- if (c == 'n' || c == 'N') {7 G4 x% W9 _/ K2 c( g$ Q
- printf("\nAborted.\n");! {* a. m5 {) X2 A! {
- return 1;* {$ R+ g5 ~; P$ i
- }
2 ^6 G( L3 m. u5 m. E - }
: C: A* T3 b4 s' K. F/ d) u h - if (writeparam(mac, stbid) == 0) & r5 J- y. f0 y q
- printf("Parameters changed.\n"); o0 b. A* N! {0 [6 ^
# ^: u2 P9 e8 o4 E: I6 j4 k- return 0;
* j3 l- v0 E3 e# Y& h( x: ` - }
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