本帖最后由 0522 于 2012-3-21 23:04 编辑 6 r ^; P% F) K @2 x, D2 p' v
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修改的代码早有了。到今天不会编译。6 o; C* I% ~1 W
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
8 {7 X0 N m& S' q/ i - #include <malloc.h>/ k, U( R) Z! H) X" `! [. y3 e
- #include <sys/types.h>
6 P* }/ i3 E& {$ \ - #include <sys/stat.h>
3 A: S, n1 _, Y; Q - #include <sys/ioctl.h>6 C+ {3 L% ^( i3 d. d
- #include <stdio.h>3 Z! S6 {7 @0 c8 S' H
- #include <string.h>
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- typedef struct {
7 v7 C# i; \) c' r3 }2 @7 Q2 L - unsigned int e2prom_cmd_sub_addr;
1 |- ~; V# `" M/ T4 S) } - unsigned int sub_addr_count;
: f5 r4 P3 y1 L' i) W - unsigned char* e2prom_cmd_data;
9 L* p; q7 i. B/ T3 m8 U - unsigned int data_count;
! A# e3 ]- H% k$ [ T! ~ - } e2prom_s_cmd;2 Q# Y: @% L* _+ Y# M1 q% i1 B
- 6 {0 h) X, P% @9 e# m
- #define E2PROM_CMD_READ 1" ]( |/ E0 B4 J+ o& O/ G
- #define E2PROM_CMD_WRITE 2
7 D, d% }/ P+ y3 G8 s- r" ]2 k - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"0 |; A) u4 _. P5 E# t/ {( X; }) U
- 4 A; O$ A4 z0 D3 U
- static int readparam(unsigned char *mac, unsigned char *stbid)# A) G8 z3 R4 A# b
- {! O. n* f8 Q1 B9 O+ x
- int fd, ret;
: T3 g$ R# T9 {9 r- o) l3 T - e2prom_s_cmd arg;" C5 S. ~: A5 h, v
- unsigned char buf[0x18];4 ?& G% i" d5 S. T
# ]* j) e* H: z2 m3 a1 b/ N* @/ x- fd = open(E2PROM_DEVICE, O_RDWR);. |* p7 H. g/ _ e0 q5 A8 T
- if (fd < 0) {
+ M8 Y/ T1 T( t+ c9 F - printf("Device %s open error.\n", E2PROM_DEVICE); X! W& L- A# Z; o8 u5 g
- return -1;
* } a4 F) s( E6 w0 z& x - }
5 b7 c) V, y/ \1 h$ F+ J" } - arg.sub_addr_count = 2;4 \( S8 B7 Z2 f# ?6 f4 v+ R) G
- arg.data_count = 0x18;
; E- M% B- X5 E e5 c - arg.e2prom_cmd_sub_addr = 0x290;
9 |% z* e+ g' J. _1 F - arg.e2prom_cmd_data = buf;# a1 m* Z! @1 v: N' T6 H; ~; J" p
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
) q* \" o7 r8 D/ U: ]- m0 V" s - if (ret != 0) {: V: C. T- R% e5 i4 b3 e
- printf("Device %s read error.\n", E2PROM_DEVICE);0 A. |' C+ a* b1 x1 i. M
- return -1;4 K- \. l' K. O* p4 V9 ?
- }" q$ z6 B& W: d
- memcpy(mac, buf, 6);! ]# O/ k. v7 m
- memcpy(stbid, &buf[6], 18);
- k. k3 v2 L1 u4 {3 j+ l4 L - stbid[18] = '\0';
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9 \3 D( w" v4 m5 H9 v- return 0;( l+ b/ b" V P7 W5 w
- }& r- v" V/ G$ X
- & q4 x. I1 R( L
- static int writeparam(unsigned char *mac, unsigned char *stbid)
$ T. x) _2 j: @7 d; K - {
# a6 g3 P- ^' y( _( s$ e - int fd, ret;6 y$ C8 b& P! L" g9 g4 }
- e2prom_s_cmd arg;$ i5 X; u& y, T: z, \! v n+ _+ ~
- unsigned char buf[0x18];* f; i/ M' X# S, m% o
/ ~$ G1 `! T+ J* U- memcpy(buf, mac, 6);
/ v5 A! P7 b$ D1 _. V* X4 M' U - memcpy(&buf[6], stbid, 18);6 t& @1 Z; i, b7 F7 R
- fd = open(E2PROM_DEVICE, O_RDWR);3 F* O5 {1 |8 l4 @5 [/ l) C3 ]% I
- if (fd < 0) {5 r! D7 o; Y$ E0 r5 d
- printf("Device %s open error.\n", E2PROM_DEVICE);
4 ]3 i4 e6 e4 \9 G - return -1;
, j$ R/ y' Y$ o2 H# h8 F3 a: U2 E - }
. F- i b* q m) f, D; ] - arg.sub_addr_count = 2;
8 G" A! i4 r( [' u% U2 w - arg.data_count = 0x18;
: m( y( G+ u4 P V' O4 f - arg.e2prom_cmd_sub_addr = 0x290;9 T4 c' ^, T/ {- B5 H6 j
- arg.e2prom_cmd_data = buf;& Z5 C" _( B/ t* U7 t4 ]# W; r1 g
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
5 h8 j2 P7 _* x, E( [. \ - if (ret != 0) {7 v7 ]) a8 Y; {4 m
- printf("Device %s write error.\n", E2PROM_DEVICE);
; c# v4 l9 s1 z8 I2 i$ o* `2 O7 E - return -1;; J: ^! C6 P" J: H
- }' u! Z- {/ A% \; s/ j" a2 `0 Q
" ]% n: R j% N- X- return 0; E; t& A: e# A/ V3 t
- }
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; G U) y" `7 W- int main()
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- char c;; g) d& ~; v8 A9 F
- int i, macs[6];9 m# j; K" t- t, s" X7 N
- unsigned char mac[6];3 ]4 q, j, `; P" P$ ?
- unsigned char stbid[256];; Z8 p1 [/ K* o
- + a/ E( [+ k. S9 P% x
- if (readparam(mac, stbid) < 0)& x* M+ h% g2 ~# D" X' F* }
- return 1;
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; }- F9 n; |: }7 i2 L( L9 R/ w) @$ w- printf("Current parameters: \n");
8 f) P& u4 ?: m4 r6 V - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);) J: v. Q" g) m2 R
- printf(" STBID: %s\n", stbid);
- _1 ~( W% T; X+ l* V -
9 F7 I* z% s2 E) ~ - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
4 R2 m( d7 l+ V - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {1 S& U# y- u. z0 T: S9 e# t8 ?
- printf("Input MAC error\n");; I& I) A2 i1 t& C% D/ x
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];
. z; \( C; H- T8 ]# |4 J: C - printf("\nPlease input new STBID: ");
) h$ ]2 Y" G0 q! G - scanf("%s", stbid);: Y1 {0 g/ r* [6 O, F. v
- if (strlen(stbid) != 18) {
4 Q I9 d& p" u4 |# @( h - printf("Invalid stbid\n");
! ]2 c2 J/ F' E2 ~4 [9 B - return 1;
2 W/ j0 r+ E" X( N% I# w% _ - }
4 F7 F5 X; Y8 M4 t# P - printf("\nNew parameters: \n");
# _7 K" G* P8 x8 O( m& }5 M - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
# l& l- k0 D* I+ i z3 Q0 C( ^5 }( Z* O - printf(" STBID: %s\n", stbid);
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9 c% v( N) i% b0 a; t, Y- printf("\nDo you want to change paramemters? (y/N) ");4 H9 |5 Q0 F1 [! E
- for (;;) {5 C5 D. P. V" q" z4 `4 M% A
- c = getchar();
X: R, |. ]0 `& V2 H7 j3 U - if (c == 'y' || c == 'Y')6 g% Z- f$ s' h4 D
- break;
' l4 B: t5 E) C J - if (c == 'n' || c == 'N') {. C8 y9 A' G+ I
- printf("\nAborted.\n");
* {* l$ d8 t7 D; F, n - return 1;
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- }% _# f5 m; X, \
- if (writeparam(mac, stbid) == 0) 9 m e2 Q2 _" F+ r
- printf("Parameters changed.\n");
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, y4 G! b `" z a, R- return 0;
2 n2 \8 Q# E1 R9 ^$ C, J+ y, w - }
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