本帖最后由 0522 于 2012-3-21 23:04 编辑
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3 u- } D- y5 e, W& \修改的代码早有了。到今天不会编译。- D3 I. ~+ R+ h
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>$ k# G9 c( i) e$ O- U
- #include <malloc.h>
+ p6 S% ?+ {3 f. E9 Q0 u. W - #include <sys/types.h>5 @: W$ |: ~4 s
- #include <sys/stat.h> n& ~' U. a U) g
- #include <sys/ioctl.h>
8 S& o a& j M& n6 ` - #include <stdio.h>. a: J4 a& q' O+ l; T0 g' M1 F5 M# L
- #include <string.h>: {" d- Y6 @4 S1 O" ^4 a
, v1 o& C, v* n! A) Z- typedef struct {
y$ U; Z5 V+ t- F _# N; X - unsigned int e2prom_cmd_sub_addr;
6 }$ M* b9 L+ g8 w( G0 L - unsigned int sub_addr_count;
/ N/ [; X2 \/ V" L) O' y - unsigned char* e2prom_cmd_data;
+ I6 A2 K& `1 h% ~: J& o - unsigned int data_count;
( [: ?* F' V2 _1 r) e: X - } e2prom_s_cmd;
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- x2 o# j' h/ I! _/ f* r- #define E2PROM_CMD_READ 1
Y/ d6 i8 F5 s" W2 E. D - #define E2PROM_CMD_WRITE 2
. y9 s* f) A. B1 G/ }% l - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"; |: C, l8 [& K9 \1 W
5 Q& E, M i: r3 [1 [! f1 t- static int readparam(unsigned char *mac, unsigned char *stbid)# a# H, F. x) T7 c% a
- {
8 h; Q- i* m+ C* _6 G - int fd, ret;0 u/ a! W. v9 Z
- e2prom_s_cmd arg;
1 o3 w' c9 S& A# T) p- m0 v' j( f - unsigned char buf[0x18]; J* z+ b! ~( w
- 7 ]0 Y1 K( u2 s7 Z
- fd = open(E2PROM_DEVICE, O_RDWR);
$ @+ U$ m& x. Y3 a$ k3 G5 H# U - if (fd < 0) {
- E5 r- C9 C" [" r j" B - printf("Device %s open error.\n", E2PROM_DEVICE);
) O' Z/ U1 `9 W. X3 C* r: I! W - return -1;% _- L) P1 {& [: D# g' j
- }( @* C/ g/ w+ u9 A& ^. w
- arg.sub_addr_count = 2;8 d2 }2 T& ]* {
- arg.data_count = 0x18;
; n4 H2 m# M( f! |$ D4 N! l - arg.e2prom_cmd_sub_addr = 0x290;
8 ?* ?) Z+ X: F" H( f, G - arg.e2prom_cmd_data = buf;6 @6 I6 I( ]: W3 X! M% b" t' R
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
' \( l |: p' g ^% k! ^ - if (ret != 0) {
1 ?7 b1 I2 ~" g& v - printf("Device %s read error.\n", E2PROM_DEVICE);
, Y3 J! V( ]9 a - return -1;/ `' B7 ]" N3 A7 \4 e
- }
7 B3 j. u% }7 j; M, n* f' e+ Z - memcpy(mac, buf, 6);
- C# G8 J$ l4 Y6 l - memcpy(stbid, &buf[6], 18);6 j; a' `: ~, V$ C% J) i! G
- stbid[18] = '\0';
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- return 0;
$ }( |: O6 t" J* t - }
' F( y; |5 J& W - # W% d! ], ^: o8 a8 Y
- static int writeparam(unsigned char *mac, unsigned char *stbid)1 Q5 U: X4 G% Z8 h/ m# s8 x/ y
- {
: v7 l0 [5 g+ R - int fd, ret;
0 b1 l2 S& ~6 E" u% H! Z/ E/ I i - e2prom_s_cmd arg;
( v0 }9 j: k: @7 P- s( t - unsigned char buf[0x18];7 c/ M' \# d' F# `* O
+ Q9 o: l' Q! B% d6 i; b- m- memcpy(buf, mac, 6);
. o$ F- g" t: \( s3 q# a - memcpy(&buf[6], stbid, 18);, C+ S( N H8 [, Q2 Z7 r+ b& p6 f
- fd = open(E2PROM_DEVICE, O_RDWR);& [6 T2 k$ s5 {% {1 F* Q
- if (fd < 0) {# P- o# i/ ?1 c; D( e: e& L7 u8 [2 L
- printf("Device %s open error.\n", E2PROM_DEVICE);( d" Z% L/ T+ A9 b, q
- return -1;
! ~$ {7 [7 x( e/ z2 n" A& P9 K. Z - }
. P! @) V. W+ V - arg.sub_addr_count = 2;7 Z- O4 p, U: }# @" j
- arg.data_count = 0x18;- V1 i2 f% V' M x
- arg.e2prom_cmd_sub_addr = 0x290; }! N0 g5 N& {2 ]
- arg.e2prom_cmd_data = buf;
1 T( G& P1 T- p) v4 X9 S, ?: K - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
0 E" B: `- u/ O0 ^/ ~) k; y; k% K - if (ret != 0) {
, j/ W" ^! n" E# A, { - printf("Device %s write error.\n", E2PROM_DEVICE);4 D+ K4 ~4 D% H7 w' C! y: t/ ^
- return -1;
1 L- Q5 D3 g; g t# \8 X - }
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- return 0;
+ O' u8 s: {5 H0 D; S7 m9 i - }
+ n! a6 {: T% H* \1 G* }8 u
$ [& j% d6 N/ w+ K7 `; z) j- int main()
* t D' u9 y% B4 f, ~# S - {$ E, M) D3 h" |! o: L# B. V
- char c;
+ ~ y4 u7 N8 e5 c& }4 A" _ - int i, macs[6];8 Y: I1 ]; E) h0 f( }
- unsigned char mac[6];
" C7 _! g% }, [ - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
, s. Z+ Y2 D) `4 u- x ` - return 1;+ p( K$ n6 [* g: p
) e) U6 M9 [; K- printf("Current parameters: \n");& p! O% S# P$ q4 G, ?* k7 p' j9 L
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
/ W2 K: w! z- B+ M S - printf(" STBID: %s\n", stbid);8 @! F2 X. N( U0 G. a# K
- ' D7 k0 [" ?& i* y! N3 i% n
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
4 m, C8 j" V# c5 I7 q+ V - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {; M1 U7 ^! u; R. T/ I8 b8 P
- printf("Input MAC error\n");
( I- i& J/ p) e2 y! y - return 1;- B/ _: W) _ r! e! T$ P- G7 {
- }
" |7 t8 Y' X3 _2 S9 J - for (i=0; i<6; i++)mac[i] = macs[i];
# x4 F4 f/ T. c - printf("\nPlease input new STBID: ");
" h7 o; X' P5 X; A9 ] - scanf("%s", stbid);
6 f1 U, |! R% N! P" o - if (strlen(stbid) != 18) {( J7 k" _! q3 |4 Q4 P9 U
- printf("Invalid stbid\n");
- c# T1 q. W/ u4 C9 n - return 1;0 Q0 {+ |4 U. X3 @- r: H
- }
- v5 K# @- X$ V* f' c - printf("\nNew parameters: \n");
# [! s% {0 q9 { - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);. n: ]: |0 X3 \# Q* I
- printf(" STBID: %s\n", stbid);& V6 ~0 ^4 [( T- o" m8 g7 h
4 A( e1 t. F1 A- printf("\nDo you want to change paramemters? (y/N) ");
# A3 e8 ~" ?1 \/ F - for (;;) {
9 q% N0 ~' v0 ] - c = getchar();
8 t- Q( i j; n- ~( h7 A9 V2 V - if (c == 'y' || c == 'Y')
2 ?* T( }+ g& h" V+ S" c; M" X - break;! T8 ?7 J) @( M2 }) m* J9 y
- if (c == 'n' || c == 'N') {8 B* V- {9 u& d2 q
- printf("\nAborted.\n");# C2 m7 Y4 N6 @8 H$ w. T
- return 1;
4 k! a/ u: J4 R6 N; d6 R+ i - }
' S, v5 v0 A. Z# T1 x" {; I7 E$ q - }
: r! N2 Y. y2 `* Q- R - if (writeparam(mac, stbid) == 0)
+ q. b7 c& m% B* B' N - printf("Parameters changed.\n");# F1 F* r6 L' \" ]1 s; k4 U
- 1 c1 l+ X- ?# B$ e0 q+ E8 ]
- return 0;
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