本帖最后由 0522 于 2012-3-21 23:04 编辑
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修改的代码早有了。到今天不会编译。
7 c0 x3 X+ e- O/ ^% `1 `需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
1 B0 O, r$ e5 ` e0 C& s - #include <malloc.h> w/ F7 t, J! y, h
- #include <sys/types.h>
6 Y) A3 t0 _7 [$ V - #include <sys/stat.h>. g# ]. Y! w% w9 g
- #include <sys/ioctl.h>( h3 }0 E* o7 |/ [1 ?
- #include <stdio.h>$ e! Y& w; [% G. v6 A+ D
- #include <string.h>
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0 p3 s8 f5 ~/ B5 s' f- typedef struct {" T) M+ @ l3 b* W; Q
- unsigned int e2prom_cmd_sub_addr;
4 }9 s( t0 N+ C! B' r) ] - unsigned int sub_addr_count;
: \. V* y3 g1 U' P: D) C- X - unsigned char* e2prom_cmd_data;
9 D2 l3 B: j4 Z( d$ y - unsigned int data_count;
9 ~0 ~4 w" [* v$ x) |+ F8 p$ q - } e2prom_s_cmd;
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% c C( c& h$ }0 E; S$ K- #define E2PROM_CMD_READ 1
1 L0 r0 S. w2 r# u( S - #define E2PROM_CMD_WRITE 21 Q& s) U8 S: u; K% b: u3 G: S& i$ D
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"" m8 E; E7 B9 i( O; E* g
- # b; g: l: h$ ~+ u9 p
- static int readparam(unsigned char *mac, unsigned char *stbid)) e* T% u" k( Z, m7 @3 j- X0 |; Z
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- int fd, ret;
. O2 f4 H* m$ k; x( g - e2prom_s_cmd arg;
/ U5 L6 E, f& `; v9 Y, V - unsigned char buf[0x18];, [- S: e1 F2 U. u( {( P
% V3 E0 \! B0 Y! e: d( V1 H- fd = open(E2PROM_DEVICE, O_RDWR);
% B0 B, z W/ ~# A4 U7 y - if (fd < 0) {
* n4 n( H% D/ |( ~3 t# J G( C - printf("Device %s open error.\n", E2PROM_DEVICE);
) U& [0 [- J' g& O' h2 ]* m" S - return -1;% a1 T7 `& [' `0 e# _+ N+ `( E
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- arg.sub_addr_count = 2;
+ N6 k* W5 c$ w3 M- n: [ - arg.data_count = 0x18;
; S" J" q, }. d8 D* u: q - arg.e2prom_cmd_sub_addr = 0x290;8 [% Y4 d; ?3 B/ ]* @$ i( ]
- arg.e2prom_cmd_data = buf;5 h: n, d y" O8 h% Z
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);. |! a2 Y/ {$ s4 e. a
- if (ret != 0) {
0 P4 c/ K" k7 E5 c: }# k6 Q - printf("Device %s read error.\n", E2PROM_DEVICE);& v2 v- ^2 U& G6 O! p. j' `
- return -1;
+ n; h' Z, x+ ~$ c4 u - }
. O9 c/ ^0 i, s3 P - memcpy(mac, buf, 6);0 M0 d" r4 K+ |4 c+ D8 X+ _ Z
- memcpy(stbid, &buf[6], 18);
$ `. G( S9 @3 y; m, E0 }6 p- f - stbid[18] = '\0';
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- return 0;7 P" B0 p" H) j* l- m. m, z0 b( x- v
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- 7 j0 |2 B, a+ y( `/ x2 |! P
- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
6 C, w) e m' h+ T - e2prom_s_cmd arg;
F0 S& H8 C" L: i( v5 G+ n - unsigned char buf[0x18];, h$ a. g/ E- _+ J. Y3 u9 E1 d
0 s) P1 S' \& o- H. X3 X% t6 ^- memcpy(buf, mac, 6);
7 f; h, G2 b! `) ^# u$ @ - memcpy(&buf[6], stbid, 18);
& ?: ?! E* ]" b4 }9 }% w9 T - fd = open(E2PROM_DEVICE, O_RDWR);' c- q' x$ E# x! P2 k) ?
- if (fd < 0) {. Q8 X: o4 V1 d! {' }3 a: {
- printf("Device %s open error.\n", E2PROM_DEVICE); J/ b# c) P3 Z
- return -1;1 j2 A7 U/ Y0 [* T8 o
- }
2 h. p1 q( x1 @ g5 c! A - arg.sub_addr_count = 2;
. v" o3 ^( |, _& ?( E4 l - arg.data_count = 0x18;% K/ O r8 Z4 I+ P2 \0 A5 y
- arg.e2prom_cmd_sub_addr = 0x290;
! e: p; ~0 f* O' n1 \# b$ U - arg.e2prom_cmd_data = buf;/ m7 N6 U6 T! E) R
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);, M! p, O; f2 g4 t) ^2 P
- if (ret != 0) {# ? h6 d5 Z) {( G; h
- printf("Device %s write error.\n", E2PROM_DEVICE);
& A$ \3 K( l- X2 J1 g - return -1;
x8 r# W) Z9 `3 a - }
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- return 0;. f# W+ E9 _; L* Q5 }! w) q
- }
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3 _# K- P# y$ c8 H) P9 e [, f- int main()
1 v0 B0 X- t9 z - {- x) _% o5 ?0 H4 s" u" r( w( w
- char c;7 }' i4 B2 e+ r9 ]6 w7 [
- int i, macs[6];
P- j) {4 S; V S5 g. H - unsigned char mac[6];+ t0 j4 h* s9 \, j# _1 J% a
- unsigned char stbid[256];6 d7 q& w# L+ q- y7 [ _9 C9 \
2 S/ L* f$ s% v' H' d/ [- if (readparam(mac, stbid) < 0)0 w1 E5 R1 x, s6 i
- return 1;2 j" V8 s8 |7 Y
7 l! }6 M" R7 D/ E5 T. y- P- printf("Current parameters: \n");6 {! o( o1 R) V( O3 j7 b
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
2 D* D; y, K. L) W; b - printf(" STBID: %s\n", stbid);2 D6 J- x7 ^! }& P p$ b
- ; f% p, z8 y- j) P0 n1 H; l( F/ _' h% h6 E
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
: T& z1 d: f+ f5 ~6 e# V! _ ^* x - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
, v% @, a% q; o( a! e - printf("Input MAC error\n");- l$ l) v) ~) W( T, c/ u' u
- return 1;" M. s- P$ ?0 [; h) W
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- for (i=0; i<6; i++)mac[i] = macs[i];
) G. _. ~' S( m9 z; H- O7 |" q - printf("\nPlease input new STBID: ");
4 r& ]. q' s+ n8 k7 f2 ? - scanf("%s", stbid);( S1 j. t4 L5 v0 n. \) Z
- if (strlen(stbid) != 18) {
& g3 y. r C% m/ G8 @' r4 r E - printf("Invalid stbid\n");
& j5 V$ u; Q- Q1 B4 Q' q+ |0 k - return 1;/ w5 Q" j) T( ]1 \
- }
K0 c) r! e6 x - printf("\nNew parameters: \n");* j& I2 M8 i6 k' w- {3 A
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
" F* X9 R( g% j* Y0 r" J+ i6 N0 i: J - printf(" STBID: %s\n", stbid);, c$ k/ ?8 u5 B, ~# Z
+ X- v4 r; x* H# v- T7 a! C8 ]5 ?, K- printf("\nDo you want to change paramemters? (y/N) ");7 N. s# H+ D5 q/ Z
- for (;;) {
# e W i0 M0 p# V - c = getchar();. y0 B L2 _7 p) a0 Y
- if (c == 'y' || c == 'Y')
/ l- \6 n# h0 I7 {* a - break;1 d2 q4 h4 h) `" V) \' s
- if (c == 'n' || c == 'N') {
% z7 F6 h g8 w3 v3 n8 m- \ - printf("\nAborted.\n");
5 ^) M% s' f$ u9 N6 E* W - return 1;2 |6 {' w8 T1 D g
- }
4 I0 ~. K, } ^7 w | - }
! T1 r( e, Y& M7 r1 z0 f3 e5 f( B: o - if (writeparam(mac, stbid) == 0)
6 X+ p2 |; x5 b! k) U" u - printf("Parameters changed.\n");
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- return 0;2 s+ K4 D% e. ~- D7 j! n3 ~8 P
- }
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