本帖最后由 0522 于 2012-3-21 23:04 编辑
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2 R" B3 [$ Z& X# r; U修改的代码早有了。到今天不会编译。; ]$ Q) g2 n9 _" Z# m. T; c
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>1 B- x d" {6 D* U
- #include <malloc.h>3 u8 q# P/ C2 A# d
- #include <sys/types.h>
3 F6 X! S4 j. ?$ _ - #include <sys/stat.h>
& |/ B" ~1 \' m' a3 g5 k- p - #include <sys/ioctl.h>1 t& O& E4 x3 f4 P" ?$ n' E
- #include <stdio.h> o: A1 Q+ |. P- l. \" a: ^6 x
- #include <string.h>. l; f R# r6 s c" B/ R
$ y2 c5 i; r* J' o6 c- typedef struct {
* B' E( {( t% A9 K5 k8 K; I" P C - unsigned int e2prom_cmd_sub_addr;+ ~! w7 I8 N2 C% t. n$ V
- unsigned int sub_addr_count;
$ ]: P M; o2 ]+ b( F. y - unsigned char* e2prom_cmd_data;/ o3 r4 L) }- j* k) V3 y
- unsigned int data_count;' y1 p+ Y' Z i% @" i* T' W
- } e2prom_s_cmd;9 b& R( x- C% x/ d# d# r3 |
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- #define E2PROM_CMD_READ 1; n) r# I3 |4 E' l
- #define E2PROM_CMD_WRITE 2
: m; v' |5 P) [* {. R4 i0 Y4 f) V# d - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)
& S! N4 ], o3 ?, D$ o/ u! n. V. L. t - {
- v" E6 T) `2 Q: i( i - int fd, ret;
+ f- H8 Y! K6 n8 ~1 C9 ] - e2prom_s_cmd arg;
; W$ k% @8 j# y' v( h+ Y - unsigned char buf[0x18];
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( |6 l, `0 b, `6 g' \2 [- fd = open(E2PROM_DEVICE, O_RDWR);- R9 K: c k* L8 j) k: B' j: J7 ?
- if (fd < 0) {$ j/ P& s# U" z) ]4 ^* f: F; G
- printf("Device %s open error.\n", E2PROM_DEVICE);% x# ]! j" [5 }! G
- return -1;5 c' \* J% j5 S3 K1 }$ s
- }
$ U4 r2 G- ~' d8 I - arg.sub_addr_count = 2;
6 i2 @3 m1 W. Z% u' j - arg.data_count = 0x18;
( A M) \! |& {* O; ~0 R - arg.e2prom_cmd_sub_addr = 0x290;
5 p& X3 r5 A2 M4 ` - arg.e2prom_cmd_data = buf;; a( d: i W( i: z2 `0 s
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
, r6 ^4 W; ^: {8 T - if (ret != 0) {
M: z1 r* T4 A% w8 b - printf("Device %s read error.\n", E2PROM_DEVICE);0 S. [. l7 i" Y; S
- return -1;% q) t! {9 j5 L# T7 x
- }! d2 x, Q, S5 D* s9 J
- memcpy(mac, buf, 6);
/ p2 C0 H- E) q1 y- S - memcpy(stbid, &buf[6], 18);
' p, p4 L2 p2 N8 F - stbid[18] = '\0';& L2 x" v, l7 r* p5 `3 O
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- return 0;4 G! u- J! h+ C+ W; {1 `1 f
- }! A% c! `$ ^9 P0 B
! i4 }7 k% s# O& p2 h; V- static int writeparam(unsigned char *mac, unsigned char *stbid)
. [# F5 }& @8 } - {
0 S( q3 s, C) a- Q& X% N8 \( q - int fd, ret;4 G8 Q* o' ]- z& g" |
- e2prom_s_cmd arg;" Y: P3 v+ V9 u8 d2 c3 h( b) ^+ L. X
- unsigned char buf[0x18];! w% S/ N4 A" l- y2 g. }% @) ]
) l* {7 {! k" l% W8 z# t' ?- memcpy(buf, mac, 6);. j5 f; Q/ T% r+ Q
- memcpy(&buf[6], stbid, 18); {# H7 J' k' P* w* l8 w* y" s
- fd = open(E2PROM_DEVICE, O_RDWR);
) J0 R6 z/ Z. \6 a - if (fd < 0) {* x' C3 X3 [9 F2 {+ d+ e" D
- printf("Device %s open error.\n", E2PROM_DEVICE);$ R: X( f* }% a8 [; A
- return -1;( Y* o( l6 c+ {
- }
! S" d, ~: Q2 p - arg.sub_addr_count = 2; F) [5 o. Y3 {2 p( S
- arg.data_count = 0x18;
! ~3 t2 o2 W9 Y, H - arg.e2prom_cmd_sub_addr = 0x290;
8 h3 B! j/ n3 A/ x- v- e* b, d X - arg.e2prom_cmd_data = buf;$ n" v( J+ y+ ]& ~! A/ |. }. a8 r
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
' D7 n0 F G8 n1 l( ~% a+ x% L - if (ret != 0) {
; D" G* T3 m' t2 _3 v: T8 R; O - printf("Device %s write error.\n", E2PROM_DEVICE);: C, d5 _% e$ W7 L6 j! T4 [
- return -1;
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- return 0;) m$ t) ~( r0 u, A" B9 o
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- # `' W+ L9 Q7 M7 J. D
- int main() Y& F( D# b7 D9 U! R
- {7 ]& w1 J/ w, J6 o- o
- char c;* q% e1 G2 c8 |
- int i, macs[6];
7 Q/ U7 R y5 L" f - unsigned char mac[6];
! `6 F5 i2 V6 }$ O6 N - unsigned char stbid[256];
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4 D3 c% L4 g! `1 f+ h1 s! |; D! F- if (readparam(mac, stbid) < 0)
" i4 L1 j9 T3 @& q3 g3 a+ X - return 1;9 F; V) w8 i7 x6 T
. ~ C+ c/ j/ ]# c- printf("Current parameters: \n");$ O" [1 z" f& M: _. s5 o$ U( h
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);/ p2 E% u' R" w8 Z: q
- printf(" STBID: %s\n", stbid);- Q4 e0 \% k- @' l
- 5 E' J% k1 h* y0 D, `: w- M
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");/ J' G# W8 D) E( `. o5 ~
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {* S. Y, S: V0 h8 p# ?6 k
- printf("Input MAC error\n");
% T, @3 E) Z0 T- N - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];- N' o3 j9 H- s+ D& P
- printf("\nPlease input new STBID: ");1 Q) Z7 G0 c ^) d3 d
- scanf("%s", stbid);
9 j7 a) W$ S& \ - if (strlen(stbid) != 18) {
* p: @8 L0 x/ |/ \# H3 D( s7 ~4 x - printf("Invalid stbid\n");$ b5 V) q/ ]; m6 L. X8 T
- return 1;
$ S- y y9 n7 ~ - }
1 D, T% y$ N4 S* \9 v x - printf("\nNew parameters: \n");7 C; Y3 b! k5 r; P* |9 T, g, i
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
- m1 A* i% M6 r v" q) F - printf(" STBID: %s\n", stbid);
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8 H, l t4 I) h+ R3 u- printf("\nDo you want to change paramemters? (y/N) ");+ I. E4 {& |# c; P
- for (;;) {
! c2 b. ]7 @# b, u: J/ V - c = getchar();: o3 D8 U4 N3 U7 C O; j3 f' r
- if (c == 'y' || c == 'Y')
4 O6 r* W6 C; H7 o" _ d# K& Z - break;4 {* D! |( s1 w& t! m
- if (c == 'n' || c == 'N') {* A. m; @% E1 t4 S1 W3 a
- printf("\nAborted.\n");
m) n4 `: y4 x0 o& s5 Q% H2 i3 L - return 1;- w4 @7 ^0 ~- t5 k+ u, x7 D/ c% V
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- }
: h6 R) A- k! R, x - if (writeparam(mac, stbid) == 0)
3 q$ ^3 ?: }& k) @" I( A. ~' l( n/ n - printf("Parameters changed.\n");2 O: b: b+ `5 |/ i5 S
& d; @. h- ?& x7 o0 \$ R0 N- return 0;
T5 g0 p% n4 k - }
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