本帖最后由 0522 于 2012-3-21 23:04 编辑 $ P7 ?6 ?3 H5 T2 @- [. m
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修改的代码早有了。到今天不会编译。
: g$ L m1 ^. t8 H, r需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>: D G" q6 g/ L' G1 ^
- #include <malloc.h>8 h" _* a2 v1 f1 Z; b7 f9 e
- #include <sys/types.h>
7 k" g) R& ]4 K - #include <sys/stat.h>2 u( g' \4 V2 M# \4 ?- G
- #include <sys/ioctl.h>
" ?; i2 ?6 G. @& I5 v - #include <stdio.h>/ ~5 S$ L& w0 {# I- ^" Y. N
- #include <string.h>& x* l. O! {" H7 j0 a, e- Z* c
- 3 G! e2 f R7 m
- typedef struct {: ^1 c2 t1 C+ [. Z7 r- e
- unsigned int e2prom_cmd_sub_addr;
J R/ Q) a4 @9 H- I+ Z4 O - unsigned int sub_addr_count;
7 C( n+ d9 A m6 M4 E+ F: }- z) w - unsigned char* e2prom_cmd_data;! S- D$ Q1 K c( k1 E3 x7 c4 {
- unsigned int data_count; d8 y/ |1 h" @+ m9 h
- } e2prom_s_cmd;9 Z0 s: B/ u9 G: Q4 z; T! q
- / X7 V# A, e+ ~9 t5 b# M" B
- #define E2PROM_CMD_READ 1
8 s1 G. K' j; q6 H+ M& h O; n - #define E2PROM_CMD_WRITE 2' c+ z0 L1 p# t! y2 P2 A% h' c+ m. d
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"9 x* Q( W! U& @5 ]6 G5 R5 `
- 4 |, y; E B s, M2 U+ q2 N
- static int readparam(unsigned char *mac, unsigned char *stbid)2 k! T9 `7 {4 o
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- int fd, ret;3 R& P' W' M7 A" I
- e2prom_s_cmd arg;
. Q0 W/ ^ y: `5 M - unsigned char buf[0x18];
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" `6 r$ ~. b! _- fd = open(E2PROM_DEVICE, O_RDWR);, N+ ?- a% X o( |% a
- if (fd < 0) {
+ Q4 K2 u6 q% Y( l7 k6 P u5 Q- P; m - printf("Device %s open error.\n", E2PROM_DEVICE);8 B# Z; M9 ~( B9 V
- return -1;
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- arg.sub_addr_count = 2;
* Y3 U' C2 w; E7 {; u% z# T+ ]# t9 | - arg.data_count = 0x18;
: N# s3 T3 u. X! `5 \) o& H - arg.e2prom_cmd_sub_addr = 0x290;- ?+ P7 Z4 \2 a7 k" R4 F3 _
- arg.e2prom_cmd_data = buf;
) o7 K4 P/ ]9 i6 C - ret = ioctl(fd, E2PROM_CMD_READ, &arg);6 I# M# N; c9 m W
- if (ret != 0) {
9 o) K8 e( \6 ~6 ] - printf("Device %s read error.\n", E2PROM_DEVICE);
8 c9 l$ k5 c$ P* J. V- w - return -1;: D' j. y8 n% }# Q: Z. G3 _% e; H
- }
/ I! p6 m4 [" ]$ j% F+ R - memcpy(mac, buf, 6);
" p6 E, i, g1 k& R; a1 G, a! z - memcpy(stbid, &buf[6], 18);
: \/ Y. V8 J8 p, ]/ ] - stbid[18] = '\0';0 A1 h7 @( Q' P: Y4 \& g& U
* k8 s# L3 F6 t+ \- return 0;6 G* X) {( k8 [) O3 i7 y4 j; j2 L
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- " W8 p- X9 P; q3 d$ U
- static int writeparam(unsigned char *mac, unsigned char *stbid)
' `/ L- F' O* \ - {
: @: Q& _8 O: L3 m8 a6 { - int fd, ret;- k! H( h2 a# @+ i ~
- e2prom_s_cmd arg;: L8 E1 R4 { Z& j" l
- unsigned char buf[0x18];
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- p) @1 B1 Z( {3 g2 j2 B- memcpy(buf, mac, 6);, F7 s% y8 m0 Q I) _& t( Z
- memcpy(&buf[6], stbid, 18);
- S4 I/ y3 [( |# R) E* v! f - fd = open(E2PROM_DEVICE, O_RDWR);
3 ?/ C& Q: J: ^ - if (fd < 0) {2 w+ j! H3 h7 ?1 a0 q
- printf("Device %s open error.\n", E2PROM_DEVICE);
1 o; y# Z6 ~3 M1 V& b( o - return -1;7 c# H9 p( |+ X
- }
, |9 q# p# m/ q( X* r9 h! S - arg.sub_addr_count = 2;
8 i3 l& R0 _2 B. ]/ ?3 v - arg.data_count = 0x18;& j2 \% @# H: q! I7 A
- arg.e2prom_cmd_sub_addr = 0x290;; v7 |4 b1 C; I: t9 w
- arg.e2prom_cmd_data = buf;' R K4 N: w* X! B9 ^1 {
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
! j! Q6 s7 {* K: M - if (ret != 0) {
, w9 \! D; T% x, z - printf("Device %s write error.\n", E2PROM_DEVICE);. o( R. i; R/ B! n
- return -1;
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7 m# V/ [0 q y( a# p- return 0;
& q. l" y! @% o# O' n - }
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# p7 A& r2 M# u- v$ p0 o0 x- int main()3 ]9 r3 t! }4 {; A
- {
1 v# o( S j+ I* f8 g - char c;
' s$ i) K; M1 M& M8 R - int i, macs[6];
3 z+ G* I; I2 X8 ^( w2 e - unsigned char mac[6];
* u' U# J0 S0 I( N - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)* m, R8 h+ b7 Z7 d: w
- return 1;- `) E* L" ?8 d9 i6 n& ^* \' J( {
$ {4 r1 P7 j2 ~" G6 J6 J- printf("Current parameters: \n");
' c% `; R3 E% Y& s# @' G- v; } - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);9 Q, V4 f; n! f8 J4 s' T2 J
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
. g# ~3 w3 y7 |& V( I - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {" a! Q1 i# c6 |
- printf("Input MAC error\n");
1 J' `5 S; x \6 P' u8 f. C( [ - return 1;7 u9 {% ^. T6 q7 f. w- H
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- for (i=0; i<6; i++)mac[i] = macs[i]; g N! E5 i3 V+ c6 x
- printf("\nPlease input new STBID: ");
+ B6 f+ i, Q4 K ` _6 ] - scanf("%s", stbid);
$ V( {; M, f& [* o& a - if (strlen(stbid) != 18) {2 E" o5 d; [# O) \3 j" L
- printf("Invalid stbid\n");
% f) m& S% H& n8 y1 y7 o - return 1;
' g" D: |/ [* }8 s2 R- ] - }
- o, \/ b2 }& @# S - printf("\nNew parameters: \n");2 ?/ h" G, I# n, k" z! t, T
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);8 P+ b- P2 w; T' G
- printf(" STBID: %s\n", stbid);) @! E2 I7 o, Q4 c, T2 o3 [
7 H# N. T0 c4 t2 i% `; d7 j* e4 }- printf("\nDo you want to change paramemters? (y/N) ");
* k' O9 F$ U5 ^ - for (;;) {
4 j; F# i$ h. R- j4 }# P - c = getchar();
6 L- h. h/ m& L6 A* K9 l8 M! n - if (c == 'y' || c == 'Y'), B z( }' E/ `% _( T
- break;$ ?! ^& M7 W t# m
- if (c == 'n' || c == 'N') {1 c7 I' ~ g, z2 x' X O6 A: {1 G
- printf("\nAborted.\n");
4 H; f: H: o8 s# ]+ b - return 1;1 x6 @) ` l0 |# p% \
- }5 {& j3 ?0 {, X) Q# u
- }
: y0 ~& |0 G/ q4 u5 ^7 Q - if (writeparam(mac, stbid) == 0) ! @/ ^( J8 D. N5 q' [* u
- printf("Parameters changed.\n");
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- return 0;
. Y9 g# B8 b! K: ~ - }
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