本帖最后由 0522 于 2012-3-21 23:04 编辑 O2 P1 L7 B: E
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修改的代码早有了。到今天不会编译。
( J' c# @" [, q2 U1 v( x需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
' O5 O2 [' F) c2 v# o( V - #include <malloc.h>
% k: x% s% P- B4 l, T - #include <sys/types.h>
" y; Y/ t5 O6 c. c. @: ` - #include <sys/stat.h>
- ~1 K; s- g% L, G - #include <sys/ioctl.h>. r% A1 V( G9 O6 B, K
- #include <stdio.h>
: J# l3 \$ k% y4 r - #include <string.h>
0 i2 D. ]( X# A2 P - ( j0 J. F' }) J9 b7 R
- typedef struct {6 X8 v% O) ?* {5 |# I3 F
- unsigned int e2prom_cmd_sub_addr;9 S! S& L1 h# k' f
- unsigned int sub_addr_count;+ t9 y2 |3 ]3 w- y* ?
- unsigned char* e2prom_cmd_data;
4 H6 A+ f) ~- H/ ^ - unsigned int data_count;
# i2 X- n g6 e% H$ M* `0 K - } e2prom_s_cmd;0 A$ T' |/ k- M( d
' X C( f( a j+ P6 X- #define E2PROM_CMD_READ 1
# l6 N8 J. e; l# O! C - #define E2PROM_CMD_WRITE 2
" i; t& K" a, Q9 | - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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. Y4 f E5 X; p- static int readparam(unsigned char *mac, unsigned char *stbid)9 @' c8 S9 ]5 _8 d" Z
- {
# M$ \; z+ d: a" h- x: N4 | - int fd, ret;
5 x" M2 |; Z$ i; p5 f - e2prom_s_cmd arg;
; |: m+ F' }+ ~& `" O - unsigned char buf[0x18];' P6 h; Q: x" H+ k
$ F3 A" ?) W! D5 \- fd = open(E2PROM_DEVICE, O_RDWR);# Q) f8 [9 h4 a$ J9 @& N& K" V7 V
- if (fd < 0) {
. C, F4 ]5 M2 Y' n: Q - printf("Device %s open error.\n", E2PROM_DEVICE);
9 P' ]$ e( k+ m+ a) m0 X0 | - return -1;. L/ L; C9 O$ E6 ~6 u. x: g
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- arg.sub_addr_count = 2;) b$ F) i- h& F, R, F0 y9 u& L
- arg.data_count = 0x18;4 n) s. g- h' P% p4 p) A
- arg.e2prom_cmd_sub_addr = 0x290;
* z C. w. G+ T8 F* [8 ?6 C; w - arg.e2prom_cmd_data = buf;
3 g: T$ m- c5 g5 S2 q1 \ - ret = ioctl(fd, E2PROM_CMD_READ, &arg);1 u/ Z% ?+ n6 ~
- if (ret != 0) {
, @" G8 @/ E. p4 Z: y2 @) _ - printf("Device %s read error.\n", E2PROM_DEVICE);
8 V8 F" \# r) j0 \- |4 v/ R - return -1;
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- memcpy(mac, buf, 6);
" I0 t; x, g1 J! H - memcpy(stbid, &buf[6], 18);
+ b1 g4 O+ N" ^, L: l - stbid[18] = '\0'; n9 U* h6 U7 U: R7 O+ `
% w8 F7 b3 M% I5 u; b- return 0;2 n& W$ @/ r$ h% R& Y
- }
3 ?8 k- A) G& m
! \6 v0 C7 C# T2 [& ?8 S$ f- static int writeparam(unsigned char *mac, unsigned char *stbid)
7 @- G: l4 C3 J) V# J7 j6 I - {
( G& L4 U5 b2 g. c, r6 {$ M - int fd, ret;
+ Z4 A! {% e' v: P+ E/ E- h% V - e2prom_s_cmd arg;2 X0 Q; r D" n+ K; j8 J
- unsigned char buf[0x18];
& _9 l% l5 e+ a% Y; f7 D - 9 p8 y2 D6 U9 t! G; T @- {
- memcpy(buf, mac, 6);5 n; D+ b& }$ v) w b
- memcpy(&buf[6], stbid, 18);
9 n7 t' C } W6 Y - fd = open(E2PROM_DEVICE, O_RDWR);
* Z7 x) L: l: j3 R6 o9 _ - if (fd < 0) {0 E/ I* o& w( _6 f0 H4 G
- printf("Device %s open error.\n", E2PROM_DEVICE);
! j% X& R/ x+ A% v - return -1;
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- arg.sub_addr_count = 2;9 U+ c: z' D) \: [# ]6 {
- arg.data_count = 0x18;0 r6 \" r9 c% P, r, y* B" Z5 `
- arg.e2prom_cmd_sub_addr = 0x290;
, o; l$ Q+ e9 ]: i% ^( X - arg.e2prom_cmd_data = buf;
) p+ i7 s2 z Z. g8 C! n - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg); \1 \3 [' k5 {7 e9 [$ J6 u
- if (ret != 0) {% F! r& b- f' A3 ?
- printf("Device %s write error.\n", E2PROM_DEVICE);+ k8 T* a2 M! e. l
- return -1;7 ^- ?: k3 d. Z6 N
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' R4 h5 G7 w" F# p7 O( ~, F0 C- return 0;
* U# [) c" m* w - }
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- int main()
, e$ Q: G' p1 ?/ `% u9 D; i - {( S6 f2 a$ H$ N8 j
- char c;
5 v8 @! I E, E9 T( `7 I. J8 Y# F - int i, macs[6];
: d& _# x1 c5 Z( | - unsigned char mac[6];
$ R1 c# ^2 {6 p - unsigned char stbid[256];0 c: Y, S( |% R5 \! E$ c, O4 u
# c& A2 P4 u" R v2 E/ N2 C- if (readparam(mac, stbid) < 0)
. h: i, l0 c% P; d9 R; A) n& g) s - return 1;
) {5 k( N( k6 v3 L% P/ E - ) {5 z G4 V7 l n
- printf("Current parameters: \n");
% i8 l5 f( W5 z6 q$ ^1 a' _ - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);# f K2 K3 O8 [
- printf(" STBID: %s\n", stbid);) c, t0 F8 S( j2 I
- 4 j& F* U" q3 K |
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");3 r9 Y4 @; w" {
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {. C' m X# \* e
- printf("Input MAC error\n");1 q& x7 `# j4 ^; O2 f( ?
- return 1;+ \1 t; K4 x- Q! a# b4 t& I
- }
" H; R( V k9 k - for (i=0; i<6; i++)mac[i] = macs[i];* G7 Z+ D( \) L/ _) x3 t" f
- printf("\nPlease input new STBID: ");
# t' l& B( T$ u3 ~: }4 q/ {& {& N - scanf("%s", stbid);" ~5 W" y* i9 ~
- if (strlen(stbid) != 18) {9 C( ?1 M( l& \# j/ b
- printf("Invalid stbid\n");
5 P1 v# w: |2 }3 t( \- n - return 1;( ~- R) Q* `% N
- }. c* n& C; j f: T4 A
- printf("\nNew parameters: \n");2 j: F7 E( Y* j( {* }+ [
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);5 x; b W# J# |6 u1 m
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
& r# i6 h: O3 T' l6 I - for (;;) {& o1 Y; R! h* p$ x" L" P
- c = getchar();' v5 `& t6 U/ v5 Q
- if (c == 'y' || c == 'Y')
- g0 \. {! C! c, ?( ?0 F# Q( h - break;. T' }+ K+ [. r$ V
- if (c == 'n' || c == 'N') {
9 z& {; F! _; Q U ^) ^/ E' O! y1 S - printf("\nAborted.\n");
9 V; {% P1 G0 |9 {$ ~) f - return 1;
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- }
/ W; Y1 G# {: W4 L: `! d/ x6 h - if (writeparam(mac, stbid) == 0)
9 c8 x" L' B3 T; l2 a* ?3 o - printf("Parameters changed.\n");6 G& ]8 x2 k" D
/ h0 o z9 a! N# s- return 0;
- f- R( v% Y0 q1 j9 ? - }
复制代码 |