本帖最后由 0522 于 2012-3-21 23:04 编辑
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- ]* k' C, W) f3 J! y$ T, E修改的代码早有了。到今天不会编译。
2 d) t6 M @: e* k' c0 l/ A需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
8 A* ^+ _- y: a, S8 g9 E+ ]; W. R - #include <malloc.h>3 H( q" q& d, ^6 Q6 [
- #include <sys/types.h>
* _. {: S& [- T; E$ z; S9 _ - #include <sys/stat.h>1 C+ r- V$ U6 Z" s/ q+ P9 o
- #include <sys/ioctl.h>
5 Z( }3 d/ M& _" ? - #include <stdio.h>0 Z" Z) x) O$ M8 R2 a) H% Y$ e
- #include <string.h>
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1 D8 Z3 V: z9 H, n+ ?5 ~0 f- typedef struct {+ V2 [" ?0 x# d) I2 P
- unsigned int e2prom_cmd_sub_addr;1 R# s( Y" [3 [1 X9 b$ p3 R
- unsigned int sub_addr_count;
3 f9 W) s" p4 n4 B. r! Z! H - unsigned char* e2prom_cmd_data;
- G* M/ H0 S2 ]( m' j* g - unsigned int data_count;7 K Y; V( o% f% E/ D
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1* s1 I4 x6 g( Q. h9 r1 U/ r5 H
- #define E2PROM_CMD_WRITE 2
" L6 A; Q2 u0 ~! A4 T4 J' S/ x8 ~ - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"3 h- h; P1 q- s/ j+ t8 g/ P
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- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
; e3 \( b% v: j/ ~ ^ - e2prom_s_cmd arg;! F" N h2 g/ A! W7 E5 k
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);. {; s; d) w9 h8 f! v6 u
- if (fd < 0) {
7 d, B- {! r3 L- E @ - printf("Device %s open error.\n", E2PROM_DEVICE);
$ u! S. |9 l1 ]0 V! ~ - return -1;
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- arg.sub_addr_count = 2;
; v( E4 O" l* d0 s+ l/ w+ ` - arg.data_count = 0x18;* U" }/ n; |# X Y+ ~
- arg.e2prom_cmd_sub_addr = 0x290;
& G4 L8 P9 A5 T: ^$ c6 ?" U* {! ` - arg.e2prom_cmd_data = buf;! o0 l, H: s! _" U
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
/ Y' P' |# C3 h" O$ f: ]( h4 z - if (ret != 0) {
% t" E. M% M# U - printf("Device %s read error.\n", E2PROM_DEVICE);; M; q. L; J7 ~4 j4 F* U2 L9 r
- return -1;' i. A: z) N- i6 t: p; K3 V
- }
, T- p4 r8 {# H - memcpy(mac, buf, 6);
/ Z9 G- @+ a" Z+ d6 o) n- f - memcpy(stbid, &buf[6], 18); M6 t+ S! R$ F- E# t& D4 z/ J
- stbid[18] = '\0';
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- k. U$ m1 F2 n, I1 l( r5 B- return 0;5 i4 U/ ?9 s& B0 A: k a3 E
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6 I, G% o7 E* n4 E0 }1 `- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
( g+ }( R; Z% s- [- q6 p5 ~ - e2prom_s_cmd arg;1 K8 N2 K) G1 X1 k: l# g
- unsigned char buf[0x18];
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# N* U3 a9 J. C: j- memcpy(buf, mac, 6);+ h3 U- r: Z5 c( ~ ?! U
- memcpy(&buf[6], stbid, 18);) R+ |+ h& L5 v# G: ?% \1 n+ l& b
- fd = open(E2PROM_DEVICE, O_RDWR);
, C( h3 ]! ?! X+ F) q - if (fd < 0) {2 a/ L# o8 V: X" [/ H, J
- printf("Device %s open error.\n", E2PROM_DEVICE);
# \) e; j6 a9 V - return -1;
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M" c T* B: n0 f - arg.sub_addr_count = 2;+ T3 h$ |7 k, c3 l9 A( c0 Z# ]' q% D
- arg.data_count = 0x18;
6 H1 _' F2 x( V0 v( M0 z+ Y; l4 Y - arg.e2prom_cmd_sub_addr = 0x290;
" V7 K- j1 f+ R4 ?& A, _; y - arg.e2prom_cmd_data = buf;
% d6 K+ v: ^1 l& h. [7 \9 }7 a - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
$ W4 t; Q) }1 o* O - if (ret != 0) {0 f& J# n+ i3 W
- printf("Device %s write error.\n", E2PROM_DEVICE);5 o8 M- C9 n2 a$ J. y
- return -1;
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0 D* _! y3 R& |! G7 h- v7 |- return 0;
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- int main()0 B) p3 f: Y7 P8 o
- {
) v6 f6 g9 s# D, F% v - char c;" M3 ]' i- \7 P1 n9 P
- int i, macs[6];* p# c3 [; q6 x: K4 }$ }+ e7 m( m s
- unsigned char mac[6];
4 Y6 Y4 G$ ?6 h# h# ^! [ - unsigned char stbid[256];
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5 a) @2 f" b8 Y. m' b4 j- if (readparam(mac, stbid) < 0)- O% F# K- b* N, e# B$ s \
- return 1;
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- printf("Current parameters: \n");: _% T: }& o; W7 Z5 c
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+ u* u. r4 W% w6 {: E) p - printf(" STBID: %s\n", stbid);
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& A O3 T2 n+ w9 Y3 S/ S, P - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");4 f1 i2 X9 r7 @- t9 w& W% q1 @- H! R
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) { `) x' g( _! a5 M* g
- printf("Input MAC error\n");! M6 @! e' g8 Q$ g C
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];) P* B+ p8 M K r
- printf("\nPlease input new STBID: ");6 H: ?+ z7 q' T! l
- scanf("%s", stbid);
2 N# [4 H$ t: T L8 y: g. g8 [5 I/ a - if (strlen(stbid) != 18) {' N4 _5 T$ e$ b" x) o( C* w
- printf("Invalid stbid\n");
% ?. I' Z7 x+ m2 X0 _ - return 1;
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- printf("\nNew parameters: \n");
9 E3 R- A6 d1 ]4 c% ? - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
; _1 i. O$ G9 ^ - printf(" STBID: %s\n", stbid);" {# Z9 p6 O$ i6 j6 r
% q4 x3 D) T2 `# _/ ?4 I/ J* t- printf("\nDo you want to change paramemters? (y/N) ");
" [' |+ z, a, G+ k5 R8 L2 O2 H - for (;;) {4 ?7 L% l& ^5 w9 p& x- p
- c = getchar();
% H, X% U0 J) `+ m - if (c == 'y' || c == 'Y')
7 v: Y; `- U- {- u8 P. L% ` Q - break;
0 n7 V6 u# J6 H8 N1 t. ~ - if (c == 'n' || c == 'N') {8 X" I: } e- {
- printf("\nAborted.\n");) M% b7 Y+ Y: M/ ~0 u/ K- r* C. @
- return 1;
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- if (writeparam(mac, stbid) == 0) , ~: ~/ |. f! c8 M
- printf("Parameters changed.\n");
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- return 0;
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