本帖最后由 0522 于 2012-3-21 23:04 编辑
- Y8 U" R" \( |* S9 u" d( L% z
2 k6 r; F9 G# L& p" L9 C修改的代码早有了。到今天不会编译。) w0 F2 y6 g2 d" l8 e4 n- v
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>! u" U& G' C; K8 ~
- #include <malloc.h>$ w7 @. E4 o" V5 q) O, G
- #include <sys/types.h>- |4 i* K$ v0 V
- #include <sys/stat.h>4 e9 m3 ]7 I% N' v4 n0 c
- #include <sys/ioctl.h>
# }( R" B+ L/ m" } - #include <stdio.h>
3 s2 B6 B3 B# n$ V8 s - #include <string.h>
( r6 Q4 e& A/ L3 \1 |
6 N3 p" i; ^& c4 O ?! p5 a+ V( L- typedef struct {
) h( ~4 _& |& o3 k. ~- G3 H - unsigned int e2prom_cmd_sub_addr;/ v% M( a8 o( A
- unsigned int sub_addr_count;' G' F. J; Q- T6 ?; ?- t& {) ^
- unsigned char* e2prom_cmd_data;& D$ O* B% ?' r' H
- unsigned int data_count;" B4 c5 F7 k) V: l! ~5 d
- } e2prom_s_cmd;
3 J4 E* ~/ M/ T& U; d& R - 8 ^, U+ Q: |; ^' X" M0 ^+ }* z/ V
- #define E2PROM_CMD_READ 1
. {* _0 ~0 i2 F3 E; A# k( J - #define E2PROM_CMD_WRITE 2
+ U" V+ ^* F' _# c8 z - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"6 X, q% g2 J, y
- t( u! }; `/ z, P% Z2 R
- static int readparam(unsigned char *mac, unsigned char *stbid)1 H: v6 I* a- _8 w- f1 h% L
- {
# |( I. C" ]6 ] - int fd, ret;1 k* ~% b: i# x
- e2prom_s_cmd arg;! b+ R6 w4 N' g# R8 t7 I
- unsigned char buf[0x18];
# O4 f q& Q- J
- r) S4 t1 G# `" o% N6 ?- fd = open(E2PROM_DEVICE, O_RDWR);% {% N: n& q6 {# L
- if (fd < 0) {
w1 t7 j3 ~# u' B+ N - printf("Device %s open error.\n", E2PROM_DEVICE);
& ?" t7 h$ J9 |5 w - return -1;
. t! g4 { ?) P6 s6 ^8 |$ I0 D - }
" g( Y% B- h" H& F: I - arg.sub_addr_count = 2;
6 f1 _2 X' z4 O _- m1 s - arg.data_count = 0x18;4 R3 W F4 u5 E# ]
- arg.e2prom_cmd_sub_addr = 0x290;: Q: x# {' ?2 x6 A" B/ S
- arg.e2prom_cmd_data = buf;) ?7 V& F; U4 B% N3 M& v
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
; \- l; @* i. b! A$ z9 G - if (ret != 0) {6 P5 A5 Z0 X' O9 w
- printf("Device %s read error.\n", E2PROM_DEVICE);# M2 w7 X0 h, j( T9 V
- return -1;8 p+ z' `+ ?& |, k/ e1 |
- }
- f8 e" w' l4 l, J - memcpy(mac, buf, 6);
' K: i# X, q3 B - memcpy(stbid, &buf[6], 18);
4 d( w& T2 o* q& d4 R - stbid[18] = '\0';( X; j5 e2 f" e% S8 W. f
- % c7 M$ Y/ s5 Y z$ f; s
- return 0;
2 X( ^6 G! o$ T$ i8 w' [. | - }
$ r3 I1 J, r) P: i, C
1 ^6 ~, D5 x; Y4 f- static int writeparam(unsigned char *mac, unsigned char *stbid)3 J7 j( A, H" F# v- x
- {
3 b# \: y6 [ o: z5 g - int fd, ret;
) b1 Z/ H0 D$ f$ v9 P - e2prom_s_cmd arg;
( G% L, }2 L. ` - unsigned char buf[0x18];
6 t; Q8 d7 ^! T w [% `
1 Z: `0 d$ @9 h) C( J- memcpy(buf, mac, 6);% p1 O6 c$ i! b+ F
- memcpy(&buf[6], stbid, 18);8 r9 p! F$ y+ ?3 y% Q0 g; t
- fd = open(E2PROM_DEVICE, O_RDWR);
/ H6 l* O+ _1 @3 ]" k1 M2 R( D - if (fd < 0) {
' J: s( v5 g1 Y3 A - printf("Device %s open error.\n", E2PROM_DEVICE);4 |6 ^. Q7 ?( T8 Q3 F+ F- s
- return -1;" y& B* w, p8 {0 I$ `
- }
* Z1 Q$ r, q/ F( @: j/ K - arg.sub_addr_count = 2;
6 b. B4 }1 v) V t - arg.data_count = 0x18;5 _, A8 Z/ x% n) M3 N
- arg.e2prom_cmd_sub_addr = 0x290;
. ?6 ]! M+ K. |0 ] - arg.e2prom_cmd_data = buf;
; Q+ O: E% a% [. j4 i" z' p6 b - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);# [9 S I2 i$ ~4 C$ c \
- if (ret != 0) {; A' w; a! w+ O7 B5 L6 K
- printf("Device %s write error.\n", E2PROM_DEVICE);
5 D$ Q" }. R9 s1 S, L - return -1;
: Q' m$ Y1 W* t) @7 L& H) ^ - }
; L$ H. r& V6 U
! K& b/ K( Z9 P+ V' T- return 0;& m9 ]3 J6 X- T* G6 H
- }
) T8 |+ E: P8 l5 ]8 R$ J: u; G
* m% Y6 {" V/ w, L! H2 E- int main()
6 B: _7 g) |& q6 b/ ^. n Q0 `6 Z - {
% R; M. d; g: I, K1 w - char c;; u+ _) r. M3 n6 a
- int i, macs[6];
- K% H2 o# F+ o* a0 T- I - unsigned char mac[6];0 p: [7 L' e9 t3 c
- unsigned char stbid[256];8 v! o; e1 c' h! i. G6 G1 m6 B Y
% n* W( [+ d1 u( j3 M" V- if (readparam(mac, stbid) < 0)
& S. y) p% p/ |! V - return 1;9 F" s- ^6 }$ L
7 f- o* s" N8 b) Z% k0 n" S- printf("Current parameters: \n");
. E- H* h u4 I2 k - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);1 l, G- d* y% G" W3 a0 p- @ N V
- printf(" STBID: %s\n", stbid);
( T% F/ {; {* I5 E2 c; v$ g) z) f -
6 o- E. T" l( w, s9 R - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
3 }$ b( J( P! z3 G - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {" [6 ]0 m+ ^" i* s# }) ~- ^
- printf("Input MAC error\n");' D/ h' j S. ~% x: ~* O3 a
- return 1;
/ ^. A8 c) |0 A$ Z/ i! o' n' p4 M - }6 i! ?& ]! S" w3 j
- for (i=0; i<6; i++)mac[i] = macs[i];+ m/ B" W( v1 Q6 f+ e P
- printf("\nPlease input new STBID: ");) c8 T" P7 K" z$ E2 @. C
- scanf("%s", stbid);
4 I) p5 _+ w& ~( m" F1 {9 ] - if (strlen(stbid) != 18) {8 n! v& {$ n) g1 d6 C+ `
- printf("Invalid stbid\n");0 q5 V& E9 S; Z% V* b- A; u8 q
- return 1;
, U% [5 o- Z: a& c - }
0 q( f8 D' L. z+ Q6 [: t. I3 B7 W - printf("\nNew parameters: \n");& D6 y0 u7 y! x% ~; R; \
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
9 \& X0 y& \; X - printf(" STBID: %s\n", stbid);) w- q! r# L' c+ g5 y* k/ {! z* ~
- d- H p8 @# Y# e% c; N1 s/ O) `
- printf("\nDo you want to change paramemters? (y/N) ");
) C0 g0 k* p9 D! O* E" i - for (;;) {2 u% n7 c; k6 ]4 X1 ~' o
- c = getchar();
3 [4 T4 c# O2 ?, \. q$ ^ - if (c == 'y' || c == 'Y')
6 _) O0 [$ E! p1 S* \/ t- d* m, `( K - break;
8 ^8 Z ?( t$ [$ p% f - if (c == 'n' || c == 'N') {
* I4 ?8 Q% n* k7 ^- V ] - printf("\nAborted.\n");
: X2 r( E! ]7 B - return 1;
$ M% L `. W" D. n$ g5 M- J - }' L7 a- K- ~* P Z0 \% `
- }2 L* L2 `5 l9 c9 g! o5 z
- if (writeparam(mac, stbid) == 0) % w) ]. w1 v+ j3 S$ _
- printf("Parameters changed.\n");0 r9 F8 N1 ^% X3 R+ @/ Q- o8 z% M6 w
- 6 O. @* v* g) d0 F+ j
- return 0;* l4 V* O) B+ n5 b4 k" W5 y' ?+ C
- }
复制代码 |