本帖最后由 0522 于 2012-3-21 23:04 编辑
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8 d5 W+ M- n- J' B/ _4 s3 n修改的代码早有了。到今天不会编译。5 t9 {9 v; C* C5 G9 X
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
/ y# g% o" S: p - #include <malloc.h> B/ W6 n0 c8 c. A* w. C% c
- #include <sys/types.h>
* D" \" g4 b' R( S% X" o+ V - #include <sys/stat.h>
$ C$ B- f" X. w& R - #include <sys/ioctl.h>
. O" w% l8 q5 `6 y - #include <stdio.h>" a! V; w) t0 a$ i
- #include <string.h>, a# h; v+ g3 b6 k7 Z2 \/ a
- 4 h7 ]- d- `- D8 o. [% g
- typedef struct {5 w. [- D& P- t/ \+ x. I0 {
- unsigned int e2prom_cmd_sub_addr;
; d [* n+ k' N/ n' n - unsigned int sub_addr_count;" y6 u* x( d! d, o0 ~0 M
- unsigned char* e2prom_cmd_data;
, v4 @! W" A6 @5 C9 J$ K/ A - unsigned int data_count;% \2 ?3 d# ?% c5 n' d
- } e2prom_s_cmd;8 O7 _" B/ r+ l5 h' c/ U
1 x, d4 K: r( V6 J5 n; R) v$ ^- #define E2PROM_CMD_READ 1
5 ~) ]6 H% y, g, w5 r - #define E2PROM_CMD_WRITE 2* o1 J3 D' J+ a4 T& F4 D4 U
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret; Q) U" `) x% o
- e2prom_s_cmd arg;+ a+ P6 P; B% I1 T
- unsigned char buf[0x18];
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! b5 F2 A& q+ {5 h- fd = open(E2PROM_DEVICE, O_RDWR);% l, [. M) q! ^7 C. h5 i2 y
- if (fd < 0) {2 U! J1 `. z* n: J" g8 g- n5 q: f
- printf("Device %s open error.\n", E2PROM_DEVICE);
$ A. g# a# U) s) ~8 i) _ q* j - return -1;
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- arg.sub_addr_count = 2;
" w( d: d. F; R- d1 B4 T# q - arg.data_count = 0x18;4 O+ ~# y- F8 @
- arg.e2prom_cmd_sub_addr = 0x290;
; ]# {9 |" W7 \# O# o7 i - arg.e2prom_cmd_data = buf;9 h, f; I$ J; i1 ]. z# h
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);4 O6 J" Q/ H# H1 ?
- if (ret != 0) {
* B4 O- _; m: {2 u - printf("Device %s read error.\n", E2PROM_DEVICE);) i5 U4 r$ H1 b4 u+ I ]7 p% Y
- return -1;9 c# f5 t# P5 p8 p* v' [
- }
B7 `$ d$ o a3 o$ W - memcpy(mac, buf, 6);0 C, B; K4 P* |1 G! l) m4 K) ]7 T
- memcpy(stbid, &buf[6], 18);
; ?+ U7 e" J9 r) K0 T - stbid[18] = '\0';
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- return 0;
" @; Z2 K6 g2 a: ^9 Z% K* V - }
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6 p- _3 d1 L9 h% J( B- ]) y- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
$ Q0 J3 N+ ]! }0 g' D5 W/ m4 B - e2prom_s_cmd arg;
1 T; A: P) k3 j: |7 x5 c/ u - unsigned char buf[0x18];. D4 [( V/ B# I8 o# G% e
+ Y* R+ k+ R- s! k- memcpy(buf, mac, 6);
: l# f) f1 y9 x: B - memcpy(&buf[6], stbid, 18);* n, w. _8 h3 ]& X% {* Q
- fd = open(E2PROM_DEVICE, O_RDWR);8 b1 i) y1 @( `
- if (fd < 0) {3 W. L3 R# [5 I* r* n" e
- printf("Device %s open error.\n", E2PROM_DEVICE);
/ L4 P1 x! F: y0 ]6 p! @" ?% @ - return -1;
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- arg.sub_addr_count = 2;
I) v) B1 M8 n9 { - arg.data_count = 0x18;' t, [. H9 x. ~) Q+ o5 f: s5 g
- arg.e2prom_cmd_sub_addr = 0x290;
! d: K1 G) }& J" ]4 N - arg.e2prom_cmd_data = buf;8 r1 X! i5 q) O
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
3 i$ G0 J: W3 X - if (ret != 0) {
8 M# O# W. g8 h8 J6 W - printf("Device %s write error.\n", E2PROM_DEVICE);
1 r7 y) S/ J- [. e - return -1;
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- return 0;
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- int main()
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# ]; A/ R2 p5 _4 j: ~5 y# i - char c;
. U# N. m/ A$ E9 d: h- M0 [ - int i, macs[6];8 U3 m( f7 K" l5 _1 t4 v1 D
- unsigned char mac[6];5 L. v8 E, P/ [* L5 ^- ?2 h0 P
- unsigned char stbid[256];( p) X0 L5 F( w1 l) V9 C
- 8 N( H- W1 `: \4 K; M
- if (readparam(mac, stbid) < 0)
# o/ g5 N& b0 k# J9 Z3 E, C - return 1;
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: b2 A7 l6 o$ D0 m- M1 V- printf("Current parameters: \n");# B6 R, N0 H* v- a2 N Q
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);9 _! j$ j) F, G9 T- R6 N, J5 z
- printf(" STBID: %s\n", stbid);' {' k2 S3 u9 D1 I& [# [6 T$ T8 o. _' D
-
- E6 |0 I8 T) W3 h/ g - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
6 r3 @+ H/ g; [- k, Q/ B5 D - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {; z- R2 z# G. m% Z
- printf("Input MAC error\n");! N4 e- k4 Y! F) V$ n
- return 1;, a$ X) V% u( R5 Z$ M% D1 C) _
- }
1 M8 o. D: l" V - for (i=0; i<6; i++)mac[i] = macs[i];+ Y& D* W2 z! H/ x% Y
- printf("\nPlease input new STBID: ");
5 P* x5 e7 R. `. j: C* u! G7 w& X% D - scanf("%s", stbid);0 ^% G- p+ j" K$ H
- if (strlen(stbid) != 18) {
! ~ ~# }" v2 K. n4 o - printf("Invalid stbid\n");+ `. t% Z8 z N( L
- return 1;
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8 D9 U( Q% t5 |8 O" i - printf("\nNew parameters: \n");" }6 k! d0 x9 g6 q5 e
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);3 t% v/ {3 R# E( R7 b5 q& ]( c
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
# d1 g7 k4 i4 r% K - for (;;) {
0 h: {' ~* O# R% h7 w - c = getchar();5 o/ [2 c7 q6 F5 l' K$ N) p& E
- if (c == 'y' || c == 'Y')& u$ h: \3 r, A5 K5 l, U. a
- break;* H0 r+ I4 { D
- if (c == 'n' || c == 'N') {+ f9 S6 h' `# w& D8 u$ C
- printf("\nAborted.\n");; } v+ t' Z) }
- return 1;
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- }
) c* y! v" Y7 w, _. Y - if (writeparam(mac, stbid) == 0) 2 {( g' D! k& u8 Y+ G7 u7 L% i
- printf("Parameters changed.\n");
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- return 0;
0 J. E/ W. b! T* O - }
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