本帖最后由 0522 于 2012-3-21 23:04 编辑 # M" O- C- W9 s
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修改的代码早有了。到今天不会编译。, `. S; V% J9 S* Z8 e: Z! J8 v
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
8 C+ A! B! z$ {+ d# q5 L# F - #include <malloc.h>- v! l! m% z# o3 O+ Z0 e2 w+ ^
- #include <sys/types.h>
' K. x' S4 w1 ^$ | - #include <sys/stat.h>
* }# o6 ?& j0 N8 k! j - #include <sys/ioctl.h>( O! ] W9 [0 |
- #include <stdio.h>1 T% a7 [& c9 ~( C y0 V$ @
- #include <string.h>( Z) } i4 m0 M% N( Z5 r# s
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- typedef struct {4 N" X, \: s9 v1 ]
- unsigned int e2prom_cmd_sub_addr;
; j1 m+ S! s. _3 r! w" R# m$ D. y - unsigned int sub_addr_count;4 p* \& I% E% v. `7 }; J
- unsigned char* e2prom_cmd_data;: X3 E. z: Q" e& j( J; B: |, }* f
- unsigned int data_count;. a; x* ~9 H: a$ O( [
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1- c* I$ z, |: `: L. R& p! S
- #define E2PROM_CMD_WRITE 2- y) Y) m) {' X2 {1 E
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"% f. n% C% c: S6 B3 H: f
. e8 k3 s" \0 f3 C+ g7 J- static int readparam(unsigned char *mac, unsigned char *stbid)( d8 R' p N2 X" P1 g: w
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- int fd, ret;6 Y; P+ C: U" p% f' O3 P
- e2prom_s_cmd arg;: H2 a! g$ F4 ^
- unsigned char buf[0x18];
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9 L& G' O- k/ ~# w1 G9 r- fd = open(E2PROM_DEVICE, O_RDWR);
; s7 @4 ]! y2 z$ V: A - if (fd < 0) {' e4 ]/ L, ]! X: L
- printf("Device %s open error.\n", E2PROM_DEVICE);. C; \: t/ ]2 I- j
- return -1;7 n' u2 c4 v9 [1 M/ v2 q
- }
- G6 _% t, C1 a R - arg.sub_addr_count = 2;: r/ \4 u# f5 w' y
- arg.data_count = 0x18;; U. Q" U& r/ t* w( W. `5 w
- arg.e2prom_cmd_sub_addr = 0x290;) A) c" h: o u( L# {' X
- arg.e2prom_cmd_data = buf;9 Q8 V6 _* S% P2 o. ]! Z; O
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);3 T+ m% G5 Z7 F+ s- F G
- if (ret != 0) {
8 q1 I, j& p* u4 M9 i - printf("Device %s read error.\n", E2PROM_DEVICE);& {/ A- K( d+ ]9 d+ Q
- return -1; e8 w3 b1 {* v2 R
- }
4 U/ G( f" F2 z1 m. f% Z4 { - memcpy(mac, buf, 6);
+ v4 ]0 A& M' Y' K4 K/ F: o - memcpy(stbid, &buf[6], 18);" q" B5 n/ h1 ] R$ S, Z/ O! b4 q
- stbid[18] = '\0';7 g* s* z4 a5 w p5 q* z
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- return 0;
( X: [' E+ H( V" L - }
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& [3 ^( p7 R6 T. b# b8 Z% C8 ^( W- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;" R) y$ O& T/ M; e I
- e2prom_s_cmd arg;
7 c: n( |+ O! Z3 j - unsigned char buf[0x18]; l- x x1 Q& ?
) E. X# q# |9 g: `& n, w- memcpy(buf, mac, 6);
2 l$ @2 ]! X2 T8 J - memcpy(&buf[6], stbid, 18);
4 ?* O# r6 c0 A) H% b" c3 ~ - fd = open(E2PROM_DEVICE, O_RDWR);, s* i; f2 f( q! T+ }
- if (fd < 0) {
% D$ y" _7 g; h" e - printf("Device %s open error.\n", E2PROM_DEVICE);7 k4 \7 ]' V* d6 P- |6 q7 A, W) B
- return -1;5 W0 L% }1 N- t: n0 O
- }
w* ?5 _" y+ H+ R5 W- \7 b$ a - arg.sub_addr_count = 2;
+ B3 X* e/ W6 ] - arg.data_count = 0x18;
- d( D7 P/ p0 a/ L0 D' [4 h - arg.e2prom_cmd_sub_addr = 0x290;# j3 U4 K' \$ _: y* S
- arg.e2prom_cmd_data = buf;
6 @* ?; \: @% L- {8 R - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
, }* y) m! k$ x W6 K- R - if (ret != 0) {
, Y: \, j. w: q! b# e4 u - printf("Device %s write error.\n", E2PROM_DEVICE);
3 Q! X O% d5 z1 b+ { - return -1;
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- return 0;
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- int main()
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" U! P; |1 y) _+ _8 M( y8 {- } - char c;! j6 Y% Z6 {& c- F
- int i, macs[6];
- @- [9 |/ R" P# |7 _ - unsigned char mac[6];
- ]# V, [1 W7 w2 n$ U* B - unsigned char stbid[256];- ~3 ?9 N! _, }( H# E+ h
1 T) H9 p. e" @2 i4 a- if (readparam(mac, stbid) < 0)
9 ~# N0 e) q. [6 ?& R - return 1;! n4 v/ C# M8 h4 I; O' D
; X( j$ W# K& L) ~( U- printf("Current parameters: \n");- D" b5 G2 u; Z* `6 R7 ?8 O
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
! O" |( U& F# z' q5 h+ h1 V - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
2 G7 U) k3 W0 s# K& s/ X - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) { _3 H, v1 B- q2 d8 ?
- printf("Input MAC error\n");
0 Z: U9 C! Z" n3 g- k' l" G! t( x - return 1;
# l( P9 x, f3 M% F' `4 o - }
5 I% s$ K% e! M( o% u, H6 W - for (i=0; i<6; i++)mac[i] = macs[i];
8 [$ \; r% x9 V/ N2 `# C7 [ - printf("\nPlease input new STBID: ");
8 X4 X. o- ?$ b - scanf("%s", stbid);6 \8 N. L( {4 y& d
- if (strlen(stbid) != 18) {
6 L- M* Y* f8 k4 f - printf("Invalid stbid\n");5 `" b8 u2 Q0 k, b9 k4 i
- return 1;& ^% e& F% I8 G3 E7 k/ K+ [
- }
. [' @: K, A7 I1 c - printf("\nNew parameters: \n");" }6 }7 a; E; F9 N% A6 N, V
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);+ W2 o! t. i) q
- printf(" STBID: %s\n", stbid);- w% l5 y" _4 }7 |
' k1 b( F: ~" r9 h& X- printf("\nDo you want to change paramemters? (y/N) ");9 V$ L1 }0 L! N
- for (;;) {
$ V3 L" X8 m* Z+ m$ U) i% Z - c = getchar();
* l" j w: j! r: U: ] - if (c == 'y' || c == 'Y')
. {- f5 o* ?2 ]! | - break;; M. `8 c+ g7 t2 T: U+ c
- if (c == 'n' || c == 'N') {
6 j- l9 l7 {3 Y& r. d. C9 Z m - printf("\nAborted.\n");9 V' a$ |) Y5 v G. b+ ~
- return 1;
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- if (writeparam(mac, stbid) == 0)
- @: A! N M5 \2 y; a! i# X! R8 } - printf("Parameters changed.\n");
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8 J( a6 C/ h$ |. e. p3 G0 a9 y- return 0;4 m$ ^' K, F% H2 M0 H$ @ d
- }
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