本帖最后由 0522 于 2012-3-21 23:04 编辑 : z7 g. O/ r7 D
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修改的代码早有了。到今天不会编译。! G1 Z; k1 X. G$ N# I
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
4 C0 T: i# j- N4 M7 u1 w. z, c - #include <malloc.h>, Q' \4 G/ x9 J; T) y4 O& R
- #include <sys/types.h>
; `8 o( f9 O$ n, f3 P4 ? - #include <sys/stat.h>
2 w' s- |8 K$ d, p - #include <sys/ioctl.h>
3 R, F2 q, c+ I! B% M; _# O$ h - #include <stdio.h>
1 g7 i' J: w) G! _5 G - #include <string.h>1 s; ]% N3 s2 G0 h( o. o. m
) w: I; ^0 X9 U3 z2 L* D- typedef struct {
% `' L7 X. G' Y3 r: m2 G% ~2 ?% U' e - unsigned int e2prom_cmd_sub_addr;
e; S+ Q: y j0 ~% F5 V# v - unsigned int sub_addr_count;+ o7 I* V8 I/ R/ [9 \- N
- unsigned char* e2prom_cmd_data;7 w' `$ F4 b( P9 b4 c! u
- unsigned int data_count;
' [9 a# c: F! I - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
& n8 J' R+ z3 ]5 ?8 Z# | - #define E2PROM_CMD_WRITE 2
% Q) I, b1 m7 w - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)' Z: y) c7 @. G# T% \$ z( a
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- int fd, ret;% w/ A' f" W9 F S( T; q
- e2prom_s_cmd arg;( u" o" o9 j* g6 Q" J% p$ F
- unsigned char buf[0x18];# ^" u! i2 [' G
; ~( o/ V% @/ K7 ^" i% K- fd = open(E2PROM_DEVICE, O_RDWR);
4 [/ K& P7 x5 A6 B2 t! e: v - if (fd < 0) {7 ~9 @3 a. e& x- g# ?# s
- printf("Device %s open error.\n", E2PROM_DEVICE);, d: E. R% Q& b3 z0 h( k5 B$ M
- return -1;
) D: r$ A$ u; B - }
; P5 M' ]' p5 F8 P \/ I - arg.sub_addr_count = 2;* n' {& _0 H6 a4 {8 D8 E
- arg.data_count = 0x18;# p8 _# n$ w6 z2 m) i$ X. x8 p
- arg.e2prom_cmd_sub_addr = 0x290;
+ @5 {4 `, A' U" k9 `" D5 x - arg.e2prom_cmd_data = buf;
7 C k& Q; S1 Q$ a& I - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
" t! i$ E+ C. o* O; K - if (ret != 0) {' J4 t, X, G% }4 i
- printf("Device %s read error.\n", E2PROM_DEVICE);
& ]) D7 o2 Y2 v5 U - return -1;
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- memcpy(mac, buf, 6);
) n0 t" U2 C/ i) g - memcpy(stbid, &buf[6], 18);$ ~; c X) u' w& @3 d$ f% O8 W
- stbid[18] = '\0';
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) C( Y) V3 S) X& f4 Z. w0 p# T, c0 N- return 0;4 c2 P0 R1 `1 Y( z$ e3 E
- }
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9 ]; O# q8 j/ J; V- static int writeparam(unsigned char *mac, unsigned char *stbid), L+ d! t$ U- \: v
- {
5 n \& ]! T) q0 k - int fd, ret;3 ~1 X* p' ~( K' p
- e2prom_s_cmd arg;
% e# _* r1 i- N5 ~: a1 u4 [% n - unsigned char buf[0x18];1 x+ m5 b; u1 } `: A# u7 M
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- memcpy(buf, mac, 6);8 t+ c f' X* k3 g$ `9 B
- memcpy(&buf[6], stbid, 18); a1 ]8 r9 i& A( R
- fd = open(E2PROM_DEVICE, O_RDWR);! e. b, ^( U3 p0 r6 G
- if (fd < 0) {: I; [- ^: e# i1 W/ |$ u- H; k) Q
- printf("Device %s open error.\n", E2PROM_DEVICE);% ]: S* l$ r3 d% v; ~- ]
- return -1;; ]9 u) M2 D/ r; V; s$ ], W+ k
- }$ ^/ ^1 L8 b% x3 @
- arg.sub_addr_count = 2;
% b5 K' z1 X5 h: w$ k' n - arg.data_count = 0x18;( i8 D# @: J! E, m
- arg.e2prom_cmd_sub_addr = 0x290;( q- F! C; Q$ k7 x- J- K
- arg.e2prom_cmd_data = buf;
; ?- w' s" [! J - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);9 u* c$ @) i* S3 [8 A; M
- if (ret != 0) {0 F* ` }7 p5 ]+ q6 }# G& k; G* Q
- printf("Device %s write error.\n", E2PROM_DEVICE);/ A; \8 J' p; D! b
- return -1;
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- return 0;: t/ ] e8 m9 r# o
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- int main() E+ W# E- ]) T" m
- {: D3 F6 @$ a5 J: D; j6 @. X1 V0 K
- char c; R. I( |+ r. z/ V7 [ I
- int i, macs[6];/ U) C6 f7 J9 s2 x% q* L' a: }
- unsigned char mac[6];9 d* l1 Y, |* S/ V9 N$ S
- unsigned char stbid[256];2 p) G8 X2 ~* p. W, G- y1 x
9 S+ ]/ v9 f# K- if (readparam(mac, stbid) < 0)5 L$ E" E, B. P3 L
- return 1;" _6 K6 c, I' P3 O5 B% d
- ' i3 w) e, F4 k/ t) C5 `9 d% d. L( w7 U
- printf("Current parameters: \n");2 W0 \5 |" q/ K
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);3 A4 w, u6 u, U
- printf(" STBID: %s\n", stbid);
2 I. y8 K3 H7 d5 H -
1 o) L/ J2 I; Z4 ?& C2 K$ i' Q - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
2 Q5 {9 \, ~! f$ m. B1 T; |8 w - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
/ _" ]2 R1 G( v# Y - printf("Input MAC error\n");' h& n" M5 a) g& R. d) k% g6 ^
- return 1;
9 v6 [. Z1 J( K5 j" O: P8 x! c - }: O( k w: s7 J
- for (i=0; i<6; i++)mac[i] = macs[i];
& _0 i; ^" q: }5 E, R0 J - printf("\nPlease input new STBID: ");
+ [- y0 i X, u* L+ `2 ^ - scanf("%s", stbid);1 [9 R; s0 B6 r5 \, Z
- if (strlen(stbid) != 18) {
* `+ E5 _4 p1 k - printf("Invalid stbid\n");
( r4 G( m2 o- g& ~7 ^; p' r& F, M - return 1;& h$ S# V+ G! R' t" ~( p" \
- }
. `3 ]& { K( u" o - printf("\nNew parameters: \n");. m$ n6 q5 ?8 ^) Z' M
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);1 w( v6 g% J8 m4 P: }7 N
- printf(" STBID: %s\n", stbid);
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$ C2 x4 @+ O8 k7 g" A. |- printf("\nDo you want to change paramemters? (y/N) ");
3 z1 u% [8 O3 I S - for (;;) {7 k0 A3 i9 }3 B4 t
- c = getchar();* l' w& X, a/ v, e. F k
- if (c == 'y' || c == 'Y')3 u! c0 R- X4 B8 b
- break;( `: A( L( B M. _: W3 z
- if (c == 'n' || c == 'N') {% t+ v5 F* q/ l* P! j1 v3 ? E
- printf("\nAborted.\n");
% S# \! ^& }% u7 B5 n" o - return 1;
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- if (writeparam(mac, stbid) == 0)
$ J, f5 _, B; o' N - printf("Parameters changed.\n");; y, L8 W( }; Z
6 B. }! I& D) q; O# b- return 0;
- c- @" B2 }4 M5 U - }
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