本帖最后由 0522 于 2012-3-21 23:04 编辑
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9 z- y% V, Y3 F! O修改的代码早有了。到今天不会编译。( f* H% I8 Y% f" P2 N
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>2 `2 x z& ^6 H. f7 G+ N+ }" ]
- #include <malloc.h>
2 A, C1 o, O" }+ [2 L0 K - #include <sys/types.h>
1 M& i! ]/ f- ^* S& | - #include <sys/stat.h># n; [5 H8 I; [
- #include <sys/ioctl.h>
$ z. g' }. @$ {% r0 x; n - #include <stdio.h>2 y5 h$ M$ \. r( a5 Z l; s* O* r
- #include <string.h>
3 a7 n% e- ^- a0 c: z- p' y9 r
7 L) B( ? S. G- typedef struct {
: S: f2 h7 L& H8 I - unsigned int e2prom_cmd_sub_addr;
7 K( e' \0 D# m9 K - unsigned int sub_addr_count;
$ C7 F( y; G- O# i1 l7 R- g - unsigned char* e2prom_cmd_data;+ r' }( Y( P# n! @- n! ]
- unsigned int data_count;& m$ Y j, z5 T2 E( M: z% T
- } e2prom_s_cmd;% _/ d: Z# }5 f2 d8 b
- $ M) d5 j; f5 S/ k6 o
- #define E2PROM_CMD_READ 1
& l6 O0 \0 S$ g$ S3 Z* \; B - #define E2PROM_CMD_WRITE 2
# d0 k5 M v: o0 b# X - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"1 Z' I; b- q& X8 u' s
- 2 X) a( w9 S- y% l, w1 Z; H
- static int readparam(unsigned char *mac, unsigned char *stbid)
( j1 A) A5 L/ h - {
. W* R e: S1 n6 y - int fd, ret;
: l% D3 j! Z1 U - e2prom_s_cmd arg;
( g: C' [3 ^3 T( ^0 j - unsigned char buf[0x18];
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8 ]2 ~! H6 P( {6 x- fd = open(E2PROM_DEVICE, O_RDWR);
F3 C2 X: d& l - if (fd < 0) {
: d! A1 v( O9 _: M/ e - printf("Device %s open error.\n", E2PROM_DEVICE);
8 ?" i/ Q# A8 ?" B: S0 L$ y - return -1;
2 H. {% S- f2 S, J - }
8 X! W7 n' v' t ?& ?2 ?) a - arg.sub_addr_count = 2;1 t c7 ^, I8 z
- arg.data_count = 0x18;1 f3 M& p7 ^( b) Y1 n
- arg.e2prom_cmd_sub_addr = 0x290;7 d, u# a* ?8 E" r' R2 a
- arg.e2prom_cmd_data = buf;0 Q, u% A: a; j6 H) K" ^7 b
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);3 L7 K; N; S* |, u1 `5 ?% U
- if (ret != 0) {; M: z7 `! t8 h/ k
- printf("Device %s read error.\n", E2PROM_DEVICE);
M! M# b& K# |/ v8 z9 B! z( x - return -1;/ G) d1 K$ H7 h9 D) {4 Y2 f
- }3 _2 e) r' b1 q( H, C; u1 n3 j
- memcpy(mac, buf, 6);8 A5 `0 X+ A! Z0 ]# Q. G
- memcpy(stbid, &buf[6], 18);
4 }: n% M9 b( P0 v0 I2 a5 @ - stbid[18] = '\0';( E7 ~! k* T+ n5 T8 K5 l$ y% |
- " p L9 @7 h/ \$ Q7 Z
- return 0;
6 V$ M: w: t9 F( b4 C+ T - }
9 R2 `. U7 H3 @4 Y, B/ f1 |$ e - " _8 V/ B, H* W0 c/ R
- static int writeparam(unsigned char *mac, unsigned char *stbid)3 d! d; R) l' i4 _) l
- {
% n K2 ^4 L4 i5 [) N7 G8 Z - int fd, ret;. g. W) ~& S: u
- e2prom_s_cmd arg;
$ W: z2 Y, {- _6 p% ^ - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
% U0 D, o! p3 T4 Q. M, `+ u8 \ - memcpy(&buf[6], stbid, 18);" _" ~- _" H& z9 O
- fd = open(E2PROM_DEVICE, O_RDWR);
2 b& \4 F/ N# g - if (fd < 0) {
( @! w/ W& ^8 X% a# H$ H4 D - printf("Device %s open error.\n", E2PROM_DEVICE);
9 E8 A, }$ q4 j. M+ B; z - return -1;
3 x4 O; m2 V- E# _; N4 S2 m( K& L - }
6 V9 v; `2 [5 ]$ j+ n- L7 C. m - arg.sub_addr_count = 2;
3 l, ~- r) b; D3 i: B - arg.data_count = 0x18;1 o6 d8 L* a6 L6 H2 I7 s
- arg.e2prom_cmd_sub_addr = 0x290;% K0 Y. L- T$ t! z+ J0 k9 \1 V
- arg.e2prom_cmd_data = buf;( ^) [. l; r) ~& |
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);/ c! j5 W$ u. X0 k; }0 c1 R' V
- if (ret != 0) {
% L# P7 ?! [0 k9 \6 B. @ - printf("Device %s write error.\n", E2PROM_DEVICE);
$ n; ]: h, ~& G# m* ?6 q. } - return -1;% _- @4 o. ?$ z- c) b- w
- }
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! {9 I% D7 ~1 u- return 0;, ^2 X$ t9 J6 r$ i# G" H/ |
- }
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- int main() `. q8 \' W: |% \ `& K2 N
- {
/ j) x. V, w5 Y0 m6 w8 ?! @ - char c;+ D" B, p0 w) f, T2 T7 E: Q
- int i, macs[6];
2 W7 L8 S3 N7 K8 s% t! W f - unsigned char mac[6];- m6 W, I S. f$ o8 G7 o- N, k) n) c
- unsigned char stbid[256];
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: y* q( F% Z0 r9 ^* _1 }- if (readparam(mac, stbid) < 0)
' j) D) g) Q( G J3 d {+ y8 Y - return 1;
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0 ?* b3 \0 n( W6 z- Z$ t- h- printf("Current parameters: \n");" k3 v8 f8 r& R9 Q) U# Y
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);. e, z- e) q% V0 S( z+ @2 _' r$ x+ `
- printf(" STBID: %s\n", stbid);
. @1 U1 d& Q+ N - ' Z( d; i5 ]" d# |5 r) ^( @8 z
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
% C5 Q0 H) e% z, Y - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {3 l! c" W" p, F- _0 d1 m- f, K( b. y
- printf("Input MAC error\n");- l1 L/ K- d5 y8 `% Q1 o& m
- return 1;$ z. u, v" a$ h0 e t" x
- }
% l! Z) @5 @8 w, w; G( C - for (i=0; i<6; i++)mac[i] = macs[i];( o, a9 S! `. H U
- printf("\nPlease input new STBID: ");
$ R5 @7 M8 V4 N. J2 q# }" | - scanf("%s", stbid);
2 S3 v3 {; i+ K - if (strlen(stbid) != 18) {
- s8 i T" i* U% b - printf("Invalid stbid\n");# J3 h: z b5 _4 m
- return 1;
! ]" {( L% g! X) G U" } - }
& f. [6 a( A) c+ K' `& D/ { - printf("\nNew parameters: \n");
7 C5 a) V4 O' D - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);+ `. B6 [1 C# e* I
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
2 S: Q9 d" U9 P - for (;;) {" [0 @7 p/ s/ C1 g$ E
- c = getchar();
' I. Y8 ~' r. P# _5 \. X6 F - if (c == 'y' || c == 'Y')9 F& X1 p& n. T+ s3 v" d
- break;
2 X& G0 w5 ?" w- H Q - if (c == 'n' || c == 'N') {
6 ?+ h; f' i, b; X9 ^& Z - printf("\nAborted.\n");
& `. A4 Y+ \ C% W- G/ O - return 1;
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- }: i# ^3 Q8 u% J, t5 Q
- if (writeparam(mac, stbid) == 0)
E) X* z* H8 s6 f7 Z - printf("Parameters changed.\n");( I* C7 ?* K) V7 t4 D* z
- 9 R& x0 F9 ]3 p2 r$ p
- return 0;
9 H& A# m- p' \# b c - }
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