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。5 _: C# X. Y1 M; o6 \+ r- y, P
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
, [5 Y% D" @/ Z2 [ - #include <malloc.h>" V8 Q1 q) W$ b* {9 k+ l$ |. G; e
- #include <sys/types.h>6 V) j; u) S: n4 m: K
- #include <sys/stat.h>
, o% [0 v% S( @2 M9 `7 C8 o( x" J - #include <sys/ioctl.h>0 C& Q( C1 d/ e {9 p2 C
- #include <stdio.h> Y0 d e0 L0 r5 _7 J' z- I
- #include <string.h>
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- typedef struct {( n2 I9 L$ k: ^" i
- unsigned int e2prom_cmd_sub_addr;& E: |4 ]* ~: H5 [& w, c9 R6 m3 w8 q
- unsigned int sub_addr_count;7 e9 J I: ^; I% V0 H
- unsigned char* e2prom_cmd_data;8 D. s: V' ]6 q5 K! p, ^) d$ C% S+ d
- unsigned int data_count;
; N' k# j2 L: F- N - } e2prom_s_cmd;
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' k9 A. O! E, j8 c; A& e0 U1 ~' w- #define E2PROM_CMD_READ 1
8 F$ \. }, \9 Y6 t/ K+ V - #define E2PROM_CMD_WRITE 2
0 \. ~: T( E4 R, o% { - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"( M7 Y2 `& Y8 j. A; b8 s( Z: _
- 5 W: G; y0 t/ l' \7 E. _
- static int readparam(unsigned char *mac, unsigned char *stbid)
j* t6 {4 ?/ o. V& @$ F0 L - {
) D8 X q7 [2 r' @; L/ q( L - int fd, ret;; J) [% l: y: U* q
- e2prom_s_cmd arg;9 v4 |0 Y7 x' C/ h9 i$ Z4 h* P; R
- unsigned char buf[0x18];9 W4 H- |% e, U1 r
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- fd = open(E2PROM_DEVICE, O_RDWR);0 B! f3 D, L9 b" K. Z
- if (fd < 0) {9 E h& `8 q/ f# w4 m+ {5 e9 X; \
- printf("Device %s open error.\n", E2PROM_DEVICE);; g! Z" ]. M" d/ v/ M% a" U
- return -1;
: x$ q9 I% y" X$ U4 z - }
; ~$ b1 ]1 i& \/ t- c - arg.sub_addr_count = 2;
/ I3 w- a. h1 _ - arg.data_count = 0x18;
: x% C# l: W Q - arg.e2prom_cmd_sub_addr = 0x290;3 g* x& Y. c' M a
- arg.e2prom_cmd_data = buf;
1 {4 G" R. w: o0 ?. F - ret = ioctl(fd, E2PROM_CMD_READ, &arg);$ k" T' V7 g& C% o
- if (ret != 0) {
7 G4 R: P2 k( G" @* ?+ m( w - printf("Device %s read error.\n", E2PROM_DEVICE);( R1 D& J8 H0 Y& D
- return -1;
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- memcpy(mac, buf, 6);4 M) Z( v: s' ]7 I) L
- memcpy(stbid, &buf[6], 18);* G1 E- ^# n z7 e) f" Z2 C
- stbid[18] = '\0';
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- return 0;
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5 F- u) R8 H" c- static int writeparam(unsigned char *mac, unsigned char *stbid)
( _+ {# _% I4 H' | - {
9 _& |, V* ?, l6 L) v - int fd, ret;7 \! b' V. e b3 P; w
- e2prom_s_cmd arg;
7 g& ^1 y( _1 c - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
/ A4 u% h- b! ?( B - memcpy(&buf[6], stbid, 18);
B" y8 I$ d0 i. \ - fd = open(E2PROM_DEVICE, O_RDWR);6 A9 e* C( z/ `8 h4 y% n* D, t5 j4 x
- if (fd < 0) {
) S1 X$ z. M* o3 u - printf("Device %s open error.\n", E2PROM_DEVICE);
( o( b4 ~; ?" [$ R9 Q$ H' k5 Y0 j - return -1;: }2 t2 x9 X ~# P9 g% e! P5 g
- }
2 [' G0 V, |; x% R) x8 i0 l - arg.sub_addr_count = 2;4 C7 R- e$ q T& d
- arg.data_count = 0x18;
' i6 O' _. p" r0 C/ w' @ - arg.e2prom_cmd_sub_addr = 0x290;, C" o9 a& \( O# X% m9 I. }
- arg.e2prom_cmd_data = buf;
0 K9 a( E+ w. X( }/ l+ v7 I - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);7 M( |% n4 c$ S( E9 F: w, D5 S( O
- if (ret != 0) {7 i+ n( G5 a- o$ u' C+ m! l( Q
- printf("Device %s write error.\n", E2PROM_DEVICE);
7 J2 I: V8 O! B! s0 V - return -1;
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- return 0;1 N j/ S8 K9 v" Q/ J
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; p! w8 {! b9 n- int main()5 @8 o' |1 t7 T! [" i Q( ]
- {
; S3 f8 |9 v$ N9 @) e - char c;
+ Q0 F0 d3 Q& L - int i, macs[6];
) m$ I: @$ [) H - unsigned char mac[6];2 M: \; Y$ P9 k" K" c5 f/ }
- unsigned char stbid[256];0 d' x, k! `; N
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- if (readparam(mac, stbid) < 0)$ V" W! b& ?. g0 q
- return 1;6 M+ {8 l- Y; V9 ^
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- printf("Current parameters: \n");$ x! A. M' _/ f' \+ o/ x
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);; Y2 x# ^% _' V6 w- ?2 y/ m
- printf(" STBID: %s\n", stbid);7 P7 f: q0 g) ?
- # Z3 A( y% M/ x% U9 s+ K
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
/ W; Z' L {0 @) J" k) z - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
& D6 X: Y6 I/ k) n3 M7 y( E - printf("Input MAC error\n");9 [$ G8 u6 q1 K4 [2 z
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];
, L* K0 V% b6 p# a9 M$ p" e - printf("\nPlease input new STBID: ");9 z! g- C% N6 [" S( F3 ?* X
- scanf("%s", stbid);
3 b/ ?% V% v) ~" {4 E# ?& `5 q - if (strlen(stbid) != 18) {
1 P! f6 c( G/ v3 | [3 P* F - printf("Invalid stbid\n");
% F v" u( y" Q - return 1;; X p; j' m; a A& G
- }
k# ]+ {& |2 i3 b* @& w: x& V/ D - printf("\nNew parameters: \n");
' B2 o+ [" z9 \* D7 q y' ~ - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);+ J* F. t+ R4 ~% a1 d
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
, V; B9 A* v! D2 j2 m - for (;;) {
8 h) e* o$ p" O9 c( [ - c = getchar();
8 a5 Q6 V7 G* h" y( | - if (c == 'y' || c == 'Y')
! E# z S; W! G, p8 ]+ X - break;
# p+ X; r7 d9 C7 j- M. d) } - if (c == 'n' || c == 'N') {% Z$ G# x% Q3 Z9 ^
- printf("\nAborted.\n");
8 V1 ~* v/ ^' S$ B9 p' T+ L6 u- M - return 1;' Z* N' z6 Q5 m
- }
3 p" Q. l7 Y" O0 m4 ~* N$ D - }
" N& ]3 S! C( U a' V - if (writeparam(mac, stbid) == 0) 8 J1 j+ ]+ Q( e$ Q
- printf("Parameters changed.\n");' ^! j8 P; S. W! Q9 }# ?. G
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- return 0;! B! l9 [9 A& O$ [
- }
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