本帖最后由 0522 于 2012-3-21 23:04 编辑 - z1 [6 G2 q* ?$ h' @: _
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修改的代码早有了。到今天不会编译。8 s* ^7 j( q$ K* J% a* q
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
& N. {7 z, @" E: z* h* }$ T - #include <malloc.h>
4 l1 P7 j- Y* O; x* b7 X - #include <sys/types.h>
' f7 `! m& L: j! Z - #include <sys/stat.h>; ~* z' Y& r Y* b
- #include <sys/ioctl.h>
% T$ m% A, P8 r4 Y - #include <stdio.h>9 n: H' u! _7 Z' k4 x" m+ t ~
- #include <string.h># S8 u* m z: n0 x9 e- A
! Q& l0 d# f0 F- typedef struct {% `- }! w6 y/ A) _$ h
- unsigned int e2prom_cmd_sub_addr;3 U$ k* z9 Z& Y0 c
- unsigned int sub_addr_count;
7 S2 ]6 A* J* c C8 Q* y0 B+ q - unsigned char* e2prom_cmd_data;
! @0 u, G3 Z6 h0 M- m) I - unsigned int data_count;
4 O9 X" e/ G/ h: d" C( n) |6 n - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
9 X* `/ V t( b+ W- L' r. d - #define E2PROM_CMD_WRITE 2; n. x) Y' B$ ~
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"9 ?9 V0 O1 l2 N, j; s/ o, S* Y
8 T/ c# a' M0 z' T0 w/ F' {- static int readparam(unsigned char *mac, unsigned char *stbid)* Z- v5 M" C3 V1 H @7 X
- {
5 a5 E O* {) s* U! h l Y - int fd, ret;3 N' c" d6 Z* c7 |$ M' l/ [
- e2prom_s_cmd arg;
3 |8 k9 c; J' J* q - unsigned char buf[0x18];4 ]6 p( f$ Y' }2 Q
. x1 c5 u* M) P- F k- fd = open(E2PROM_DEVICE, O_RDWR);! C) E& [: ?% u4 @/ ^# _* d
- if (fd < 0) {
7 C8 k% C" P$ s* V" I% p - printf("Device %s open error.\n", E2PROM_DEVICE);
' o0 t; b6 E8 t4 H - return -1;
1 Z4 b# l5 m+ R5 J K z - }
4 ?8 \4 p* [; r* T1 B9 a& z - arg.sub_addr_count = 2;
5 x0 y8 M) c% L - arg.data_count = 0x18;
4 L3 J. V* |% Y" }/ W @ - arg.e2prom_cmd_sub_addr = 0x290;2 l6 q* Z( r7 _/ {5 v9 Z7 M
- arg.e2prom_cmd_data = buf;6 g' U P2 [! `5 R2 |+ W2 a
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);, h- t1 v2 ~, L, ?9 \: u: t- v: u
- if (ret != 0) {9 J% t' K, a# N# Y; \
- printf("Device %s read error.\n", E2PROM_DEVICE);; Y: A- o; R4 C/ l) n7 x+ q0 H
- return -1;
+ M" ]2 q/ _) y. I4 }8 M0 u5 [0 ?8 y - }
1 d( [/ w9 B# q/ c9 q - memcpy(mac, buf, 6);0 A5 ~% U; F% W
- memcpy(stbid, &buf[6], 18);
! s/ w( k$ o6 |/ i6 x - stbid[18] = '\0';
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- return 0;, j3 ~" @; I. P3 a) T$ y# L) E
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)9 t& G% @' E0 f; C
- {3 i' T: O! P Z' h
- int fd, ret;
% q O! S+ H- S: o5 ` - e2prom_s_cmd arg;5 D! D! P3 V6 C+ `, z
- unsigned char buf[0x18];/ c3 |% x/ ?7 F2 S
! J: W& r0 v# o* O- memcpy(buf, mac, 6);4 e+ A) l' Z0 s1 W
- memcpy(&buf[6], stbid, 18);
" s1 K, Z* h7 }' Z/ Z - fd = open(E2PROM_DEVICE, O_RDWR);& _* w" Q, R, m' Z: x' a, |" d
- if (fd < 0) {
/ J. N* e8 n) T2 ^/ `1 q) J* Z/ U; s - printf("Device %s open error.\n", E2PROM_DEVICE);% \( T. a3 n- z
- return -1;+ b( I; R n: |9 N7 W
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- arg.sub_addr_count = 2;
, Q( t! f4 z: G$ s - arg.data_count = 0x18;
D' U1 g8 E- z+ k% [: Q" c2 u - arg.e2prom_cmd_sub_addr = 0x290;
' E ?5 k) Y* E9 R9 f. ? - arg.e2prom_cmd_data = buf;# r" A7 |( g; N( D3 M
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
' I9 o+ Q- K! Y3 T - if (ret != 0) {
3 B; h3 m/ E; y0 S1 b, _ - printf("Device %s write error.\n", E2PROM_DEVICE);
+ ~$ ^4 A& o4 v0 F+ q% | - return -1;/ D# J$ q8 r. v+ }9 i9 {3 l W* i* [
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! q9 c1 [- Q2 \* c( W$ K; G- return 0;
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- int main()
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- char c;9 }, Z2 D3 T/ |4 k& }
- int i, macs[6];
/ J m& j( d$ ^* J/ E$ k1 O1 ^ - unsigned char mac[6];9 e F& W' t6 n1 p! b2 P; o
- unsigned char stbid[256];
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5 l# I1 r) O' [7 K, C; ]- if (readparam(mac, stbid) < 0)4 N+ d3 ^% Q! l; s$ u4 ?, v- q
- return 1;* L; X* l& o' E" r. o G
- . {* }1 x* K0 \) ~2 I+ l
- printf("Current parameters: \n");
' e3 O0 b. _( s7 G4 F - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
; B ^4 Z! E: x+ o2 C# _5 H; x9 E - printf(" STBID: %s\n", stbid);
# x' Y. v' V! H. ^, ^% Z- k -
8 I" u) Z& ]0 b8 b5 p0 t4 C - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
2 e4 R4 ?/ y. K) V: t5 q - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
8 w) K+ ]; q5 H( G - printf("Input MAC error\n");3 p8 E G" B# X5 @3 X: f
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];1 x) o2 H- ~' Y" m7 v
- printf("\nPlease input new STBID: ");
* \! I: v9 A- L6 l! {( W8 z s - scanf("%s", stbid);: e# `3 u) ~: K0 U6 s
- if (strlen(stbid) != 18) {, l8 M8 H& K" ^/ ?
- printf("Invalid stbid\n");3 N3 t6 k S/ \. y. p$ F# k. L
- return 1;
- u0 @$ |, j+ ]' T - }3 @. |( C% q% P/ u! g* @1 ^
- printf("\nNew parameters: \n");
1 y+ O$ U3 E) D; G% i8 y - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);* N. c7 P- h) l3 ^4 |1 q4 ?
- printf(" STBID: %s\n", stbid);
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$ Q, ^* u# A) k8 M7 U+ V0 }- printf("\nDo you want to change paramemters? (y/N) ");
7 B% ~" {7 ~) M; A) j6 k - for (;;) {2 ~7 U$ n0 j* Y0 U, P' U
- c = getchar();
! g5 P8 O6 G" o& K - if (c == 'y' || c == 'Y')3 A, n- g2 H. J) _& P; b9 }" t7 T
- break;
9 }( s( B7 Q; F: k* {7 C - if (c == 'n' || c == 'N') {
8 x5 j! v' y, C" [, K' e! V$ @ |3 [ - printf("\nAborted.\n");7 \, x6 `( J+ X ~8 h& Y
- return 1;, ] F! ?! z1 S% A% G( i. H& ?
- }
5 s) m# R$ W5 G2 E' d/ y - }9 J4 t5 }) s) e1 p4 G3 v: e
- if (writeparam(mac, stbid) == 0)
5 x3 ?$ {/ t% i/ x9 z" \) T4 S3 @4 O - printf("Parameters changed.\n");
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' K1 c2 c) y4 G6 r* u: P2 f- return 0;1 o Y# V! v! Z8 r
- }
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