本帖最后由 0522 于 2012-3-21 23:04 编辑 8 @# X# F/ q G" W2 X
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修改的代码早有了。到今天不会编译。8 c2 f" E: U3 X' j
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
; R; M+ Q4 G- r- ]+ L0 y6 W- f - #include <malloc.h>
1 [% D, i; G* \4 D# m - #include <sys/types.h>
+ A8 q$ ~1 }8 b/ ?$ v2 v - #include <sys/stat.h>, S. i, c ] |" {
- #include <sys/ioctl.h>
$ h- H$ r5 n1 P3 e; q$ p: ]7 M - #include <stdio.h>
! P5 x ~. j: Q2 j* K - #include <string.h>+ Y& o- o- j: t+ ~
- 8 D2 E: E3 b) n& t9 u
- typedef struct {
" _, [- s, i# T; ~& K& y1 X - unsigned int e2prom_cmd_sub_addr;
, ~0 z6 _$ s8 i$ j2 n - unsigned int sub_addr_count;; ?1 ^. j) ^2 e" \5 A8 ]
- unsigned char* e2prom_cmd_data;
+ `% r+ i1 x' b8 L5 k! R3 H - unsigned int data_count;6 x- P% K/ A: M; X1 S* E$ F2 l
- } e2prom_s_cmd;
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; r0 q- p! {9 o- #define E2PROM_CMD_READ 1
1 e3 y' v* _' ~6 J! z$ g$ L - #define E2PROM_CMD_WRITE 2# e1 @, N6 c# p3 y! ~7 X; Q
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"# V3 E' F3 P; C+ x3 N! }
7 S' F+ I( ~7 D% l" l9 ]- static int readparam(unsigned char *mac, unsigned char *stbid)% m, X# q2 _6 Y; P$ o; Q
- {
. ` { ]" E% C1 H4 q0 s& z$ P - int fd, ret;* E3 K* a8 z8 I% V* J; Y7 {
- e2prom_s_cmd arg;/ ] Y. T }2 ?( e# C4 {
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);" g$ \ v6 t- q- \5 a9 { ~- ^
- if (fd < 0) {
! ^' h% W$ H9 q$ x2 ^% {% q, G - printf("Device %s open error.\n", E2PROM_DEVICE);
2 U0 M5 b# Y; _/ `* F( q - return -1;$ }; }5 {& {! P0 }' [3 P2 m
- }
0 H) }0 ~% f2 J; T) q$ [ - arg.sub_addr_count = 2;
( ~$ o0 m* c: A6 P! Q) ~3 l: { - arg.data_count = 0x18;) q6 W' E$ F. A1 P: ~: r
- arg.e2prom_cmd_sub_addr = 0x290;
$ S! ^. r' L: k+ o, d4 Z# h5 T8 t - arg.e2prom_cmd_data = buf;8 l0 ]- `# ?9 E: V7 F; l$ R
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);6 m5 G% o/ D1 T( e \5 R
- if (ret != 0) {* r% {3 q5 z1 k- ?
- printf("Device %s read error.\n", E2PROM_DEVICE);
" n# c4 _( W3 j6 B! s, ^9 M# g$ R - return -1;
' i+ B1 K" b" a& N7 e" v - }6 _9 ~- g9 w) M. u G, B- H& q! J
- memcpy(mac, buf, 6);
]" {3 P; x5 k+ u- B - memcpy(stbid, &buf[6], 18);( G" C7 ]6 _; Q% L
- stbid[18] = '\0';6 A4 M9 } P, b' \9 G# b
4 _1 {) K! f/ p- return 0;% y* c$ ^1 q2 w7 W
- }, |! i# N, P+ V/ K6 l7 v {* {
, Y- e. M4 M# \/ O+ x- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;. W" e3 @* H1 c9 a& N' _
- e2prom_s_cmd arg;
+ n2 A0 G9 F: e$ r - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);; u" W$ n3 l: G+ H# s7 r3 ?
- memcpy(&buf[6], stbid, 18);3 l, u) q4 \0 P# z
- fd = open(E2PROM_DEVICE, O_RDWR);; S1 L" l' o0 ?* H2 n5 ^# ?. r8 Z
- if (fd < 0) {
6 |, W* s1 b) k, Q0 T3 D$ f- d - printf("Device %s open error.\n", E2PROM_DEVICE);
/ S B8 v4 d3 x- P) a2 l5 B4 o - return -1;
4 `5 q) g, K7 C% _* V- Y( H - }
5 i/ g. P/ T" E; W* N% h - arg.sub_addr_count = 2;
) M9 ]1 h b& A$ c, u8 U - arg.data_count = 0x18;9 F! L! @( z, G5 S6 D9 |
- arg.e2prom_cmd_sub_addr = 0x290;8 [! Q: G- C4 v( H. S2 O. Z% n
- arg.e2prom_cmd_data = buf;
% r' w) P- N4 Z8 ~3 y% h3 E - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);0 C9 u2 Z! J" z+ ]& Q/ R4 j
- if (ret != 0) {; z: A& B9 J5 A& b. V1 B0 _- z; ^3 V
- printf("Device %s write error.\n", E2PROM_DEVICE);
3 G y1 H* L6 ~! Q3 s5 S. L - return -1;; k. H1 b, Y! H m" \
- }. Q/ H9 U* o% V: Y2 u5 k
& B; K3 I3 B5 F" f7 j: V- return 0;
* v/ S/ o+ v4 A8 B3 \* k - }
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8 f4 F( c: ~6 v9 A. K! o% {- int main()! L5 g" X$ T8 _) g; P( ?
- {- e, E6 Y; T) U4 U1 x/ u
- char c;" b+ A: v' d: {% F" \# t2 ~
- int i, macs[6];
% ?4 O r u2 v - unsigned char mac[6];0 H9 @& m: f8 Q9 ~
- unsigned char stbid[256];
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6 f: e& T* X2 p& \- if (readparam(mac, stbid) < 0)0 U# z: N( k5 q8 n
- return 1;
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) ]" D7 o: p/ d* P( r- printf("Current parameters: \n");! H/ m% s, v! A! R) `/ S$ b( S& K
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);% G* u+ v& ^' l1 h$ P9 _$ G" H
- printf(" STBID: %s\n", stbid);# I" Q2 o8 g" `/ c
-
- E. _4 E# m/ H5 ~! r - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");5 _4 E3 H8 K! G) A! z$ Q
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {+ n% Z" x, P2 J2 [+ y- c% P T
- printf("Input MAC error\n"); j+ Y7 U% E( Q' g
- return 1;
* x8 c% V: Y- N( Z& y8 s( l - }
# J/ W: v( d: q$ [ - for (i=0; i<6; i++)mac[i] = macs[i];
! M. N' U/ {, h. J" F - printf("\nPlease input new STBID: ");
5 o, g( p+ s) e - scanf("%s", stbid);# ~- X9 @* V, `+ B
- if (strlen(stbid) != 18) {; s3 [, L- p( L3 W3 U
- printf("Invalid stbid\n");
; T2 J5 ~6 W* j$ i7 g7 x - return 1;; L& q" ]" Z+ o1 Z
- }. Y5 l5 j0 R4 K6 Z5 t, L* d- E
- printf("\nNew parameters: \n");
* M; X) A; ]0 Z7 s - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);: e8 {1 j+ V9 U- @% M9 E) p
- printf(" STBID: %s\n", stbid);: h/ T! o0 d" Z# T3 T8 l9 |: `
% @8 d% Y/ @# O: o+ f% X3 I- printf("\nDo you want to change paramemters? (y/N) ");% s$ z( z1 z& E) q- {
- for (;;) {
7 J# F/ h' V2 }) ~4 ^+ A - c = getchar();
# {" i/ O% c% m - if (c == 'y' || c == 'Y')
' W' i q; V1 k$ e- k; U - break;2 u# O4 x4 h* B$ ], s9 N+ {5 f
- if (c == 'n' || c == 'N') {# N2 o$ Q: |# g, T2 a
- printf("\nAborted.\n");
- J, O# Z% Q# b# x% \+ j - return 1;: ^! d) ?* Z. ~
- }( V3 T- Y% e5 u e
- }
! b+ v3 f. J4 \ - if (writeparam(mac, stbid) == 0) % w+ d. K! @8 X7 `
- printf("Parameters changed.\n");: @; V& h8 V# J: B# ]# R
6 I$ Z9 |2 M% |9 V8 R5 T) a6 G- return 0;
9 @3 Z7 I% t4 @ Y& Z - }
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