本帖最后由 0522 于 2012-3-21 23:04 编辑 * c& Y) ~. ~+ h! o* d
" l& K/ i, Y: Y( H修改的代码早有了。到今天不会编译。
2 ]( Y/ A/ G- P( [5 a& m需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>0 @3 Q7 i7 U5 U' {
- #include <malloc.h>. W# _; y4 Y# |" U* T
- #include <sys/types.h>6 } \6 Y0 C, Y6 o+ k' t
- #include <sys/stat.h>1 |0 A; d- O Z8 v! q
- #include <sys/ioctl.h>
, T* u; Y7 y% W8 Y Y9 s% F - #include <stdio.h>
2 P- W: c7 Q: t: }" L. Z( i5 p4 A - #include <string.h>
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, t) z, }& {$ d8 U- typedef struct {: n& o7 n1 ?. g* s3 U* b
- unsigned int e2prom_cmd_sub_addr;
7 B6 a) b/ H% [* C5 h& D - unsigned int sub_addr_count;* }+ Q/ Q$ y9 K/ K
- unsigned char* e2prom_cmd_data;) f4 f& f2 U$ n9 h: c3 X/ M- M
- unsigned int data_count;
; U4 W3 q# J! @" t% Y9 M: | - } e2prom_s_cmd;' h" F' z4 q p2 d8 T2 p2 V
- / J( `4 \8 g0 ^+ F
- #define E2PROM_CMD_READ 1
+ [" h) s# \! v7 W+ o2 W* a - #define E2PROM_CMD_WRITE 2
/ K! E1 z y1 I' g" G& I - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)
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$ b+ f/ e# a2 w7 |7 K3 g - int fd, ret;
1 |/ ?. k# \. L2 Y$ ?# l - e2prom_s_cmd arg;
( X& T6 y7 b2 p1 S - unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);: N8 U" U' J5 b" E* a. ]
- if (fd < 0) {. C7 `' Z3 M; Q, P
- printf("Device %s open error.\n", E2PROM_DEVICE);
! ~ Z G1 k( S; Z1 @( v - return -1;
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- arg.sub_addr_count = 2;
: K9 W) f. S; H( G$ N) f - arg.data_count = 0x18;
! ]" g5 l' S2 ?6 n8 v2 I- l! X! _ - arg.e2prom_cmd_sub_addr = 0x290;) Q, n1 g! k: \/ u' @
- arg.e2prom_cmd_data = buf;
2 x. R/ y1 x& P1 E) g - ret = ioctl(fd, E2PROM_CMD_READ, &arg);! h& m' {" V/ W7 T
- if (ret != 0) {
6 m: f8 B# @+ s& c' g; N - printf("Device %s read error.\n", E2PROM_DEVICE);
5 u7 {+ E1 H9 r5 ~3 j - return -1;/ \& g3 O4 d p2 J8 Q4 B
- }
8 P" ?1 a. P6 A - memcpy(mac, buf, 6);
9 d, R# @ K+ U9 J1 v6 j - memcpy(stbid, &buf[6], 18);1 u! B: E6 ?9 G! {- {0 M7 L
- stbid[18] = '\0';
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- return 0;
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- $ Q4 F, I* _. \8 I* c+ H
- static int writeparam(unsigned char *mac, unsigned char *stbid)
! g+ T2 [* l4 k% n) h - {
3 q* B' m$ B6 I" V9 Y - int fd, ret;( k4 Y6 G5 F0 e, a% n' n% ~$ z
- e2prom_s_cmd arg;
% [5 u7 Q. s% D9 X z) N - unsigned char buf[0x18];
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' F, Y1 f9 q% \& @% u- memcpy(buf, mac, 6);7 ^# t( r& V9 |
- memcpy(&buf[6], stbid, 18);; h% X2 \. t( l* b5 D$ w f3 f
- fd = open(E2PROM_DEVICE, O_RDWR);+ e5 i1 [* @6 V
- if (fd < 0) {# [/ g! ?& J" k/ S$ C' z
- printf("Device %s open error.\n", E2PROM_DEVICE);) B- [# T7 b& [8 D; g
- return -1;& \4 H2 h. b/ m3 u5 }
- }, p- ~8 g9 o) t5 R( y) p7 K' U
- arg.sub_addr_count = 2;1 w& q' V8 I' S' q/ B
- arg.data_count = 0x18;9 ^ n5 r' k0 ~; C( H, l4 b
- arg.e2prom_cmd_sub_addr = 0x290;3 g/ n: @5 V8 C
- arg.e2prom_cmd_data = buf;; h5 B8 S* {/ g( }1 v
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);& j& r1 {$ p- A" M t9 I
- if (ret != 0) {
6 v& {2 C/ Y' ~7 z/ p; ?: B m2 z& I, x - printf("Device %s write error.\n", E2PROM_DEVICE);
( E! Z2 M# W2 J9 {+ @4 D - return -1;
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- return 0;
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' {3 M5 d* {; x" l) W; a: H7 v5 W9 r- int main(); s8 b- N! L8 ~+ O0 M& r
- {+ c) e! i4 e0 ~4 G# i1 P( ^
- char c;0 v- Z' x9 `8 c# o
- int i, macs[6];
' u; L2 {7 T Y& r! B) i' R - unsigned char mac[6];4 c+ @: U. z9 i( j% o& i
- unsigned char stbid[256];9 D/ n9 ^' f2 t( _8 W
. D6 x8 n0 D/ U& j4 M- if (readparam(mac, stbid) < 0)
1 w2 [& _# R: |& B. J- z - return 1;& w, Z( u' k2 `' s
- + j/ n# H6 W S8 `
- printf("Current parameters: \n");
5 Z7 V9 O! m' n g - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
" {% ?/ l. [) s% j @1 o - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
7 H2 x' \4 j( h - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {4 O9 n8 S. d2 q5 f" g
- printf("Input MAC error\n");& B, }3 I, Y: i( f, L' S
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];# J5 M1 n$ s* C. _! p" _! k
- printf("\nPlease input new STBID: ");1 A* Z7 b# v& T; H9 [- V
- scanf("%s", stbid);
: X' Q5 [' H* I% t+ x - if (strlen(stbid) != 18) {
0 d' d& r! w2 z" @% z3 c3 \ - printf("Invalid stbid\n");9 f+ j; }' @" X% L- A$ n- j. C
- return 1;
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- printf("\nNew parameters: \n");
( Y1 P' O; p0 E/ w: j - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
; q1 \- U) g1 N) G x: h7 g - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");) Y+ \4 J" z6 B
- for (;;) {
7 d8 M) s, K- P( M& }& V - c = getchar();
4 g) y: _/ o+ G2 G, ~ - if (c == 'y' || c == 'Y')
, E6 [+ |! c7 p7 f9 B- n - break;
/ U. X! N+ M* i/ p+ g- \0 J - if (c == 'n' || c == 'N') {
; M0 V/ k0 C1 s3 B - printf("\nAborted.\n");, g/ Y; C4 R* s3 K2 Z6 E! b2 s
- return 1;
; R9 m" z, A1 U* w2 x0 f - }
/ H* R9 |5 [, N) p1 [- k - }
/ T8 O3 c) q Z9 G3 k( ~( y - if (writeparam(mac, stbid) == 0) & N' w E; N, q2 I2 C
- printf("Parameters changed.\n");
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; }7 ^3 H. e) H' ~" K* V/ ?2 z7 {* E5 w- return 0;
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