本帖最后由 0522 于 2012-3-21 23:04 编辑
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8 _4 _& t' d# ~/ H; N3 T8 @需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>0 [. n, r" C) L/ R
- #include <malloc.h>! b: m. m1 Q. e% n
- #include <sys/types.h>0 v! ^6 [3 ]0 {9 K3 i* r3 x
- #include <sys/stat.h>
5 @' R; d1 L# k - #include <sys/ioctl.h> U! ^: n" A! K* z! P( X T, @
- #include <stdio.h>
( h* A- K7 r% F# O+ C2 V$ ~3 I- a - #include <string.h>/ |4 D: q+ Y/ c! V
- I, W: A9 @& U& E; }+ J- typedef struct {; q8 ~- ]# A6 r
- unsigned int e2prom_cmd_sub_addr;
7 ]4 N& L- |, l" S0 ] - unsigned int sub_addr_count;
+ g& u, d- L ]; J* u - unsigned char* e2prom_cmd_data;
) p9 t+ D( k# A - unsigned int data_count;+ G9 q# i8 }6 `7 y/ T6 f" N9 N
- } e2prom_s_cmd;
K1 T: n2 c% r- X( x - , T+ q+ D4 H0 q1 v0 k0 \
- #define E2PROM_CMD_READ 1
5 E/ V2 ?! Q2 [- N* g7 W! d - #define E2PROM_CMD_WRITE 2; J8 d/ g0 A& u: t7 A
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)# S8 f. I; o3 G, I* b1 D; D
- {
a( J; {- Z* K0 H - int fd, ret;, p0 j; C' C5 g) Y6 p; |
- e2prom_s_cmd arg;
* l+ \. ]3 o/ k; |0 K+ W; B9 c/ f. Q - unsigned char buf[0x18];+ ^! F# n; S: g+ J! a( t
1 a! @8 W }; _, M1 d; Q" i% H- fd = open(E2PROM_DEVICE, O_RDWR);
+ L4 }4 e' O/ [ - if (fd < 0) {
9 X. y8 p/ d8 U" | - printf("Device %s open error.\n", E2PROM_DEVICE);
5 t E. g) [* N$ I - return -1;, y4 s; k3 \7 a4 }* p2 g
- } E, c# D- _2 v' m0 K
- arg.sub_addr_count = 2;
4 [1 x) [" V& a8 s8 v, o - arg.data_count = 0x18;
: H6 O, n" S5 \( \7 a+ n8 w4 A - arg.e2prom_cmd_sub_addr = 0x290;1 h! M, U+ G" {0 n O
- arg.e2prom_cmd_data = buf;
9 ^; {# y3 w% z) S, L& ^6 Z& }& [ - ret = ioctl(fd, E2PROM_CMD_READ, &arg);5 n2 v' o& E8 C1 P+ o- N
- if (ret != 0) {
8 p) c: c6 ~/ \ - printf("Device %s read error.\n", E2PROM_DEVICE);
1 r. k' [* E' q9 c7 e% `' j I. C - return -1;
! J, ]' J( B1 H% O# R) P - }3 r7 A" K) D' `# P& [4 t9 Q0 ?
- memcpy(mac, buf, 6);
6 Z( P; X9 {/ S& n+ \) } - memcpy(stbid, &buf[6], 18);
" B6 {0 u% A2 r( I* I: t - stbid[18] = '\0';
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- return 0; w# T! S5 I- h) I+ M
- }
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. d7 J$ d( b, o: |- static int writeparam(unsigned char *mac, unsigned char *stbid)
, k8 c' G Q/ ~6 v$ U" N$ z& A - {
: ?# T1 @9 U; x+ d. r - int fd, ret;
4 t# B7 w+ Z+ @; d; C3 n' t1 j( y+ l - e2prom_s_cmd arg;, P4 E' d. @% L# }+ S
- unsigned char buf[0x18];
# X/ U. O9 M, n: m% { - / ?) E/ W1 m# W
- memcpy(buf, mac, 6);9 s# ]& K& e- U6 l7 q1 r9 x
- memcpy(&buf[6], stbid, 18);$ }* l, r' y4 v# Y' E2 I7 X* C; }
- fd = open(E2PROM_DEVICE, O_RDWR);
2 V5 G9 F# F0 P - if (fd < 0) {
8 ~9 K8 V; `8 N* V- k" ?. i% Q - printf("Device %s open error.\n", E2PROM_DEVICE);0 O; v. ?+ } i' J
- return -1;1 `9 X3 n* J2 A" S. E0 L
- }! J1 j6 o/ R1 B1 m7 [ _
- arg.sub_addr_count = 2;+ g. v5 R8 B0 V! z
- arg.data_count = 0x18;
: S/ B) z0 W3 F/ X/ o) z& d! n( o3 _ - arg.e2prom_cmd_sub_addr = 0x290;& l7 O! y4 R: c$ p
- arg.e2prom_cmd_data = buf;* d; q; S& j. \( i l5 I5 b: \" S
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);1 t$ M( R8 j8 ^# _; h1 j
- if (ret != 0) {' j) O) [& M) K* k
- printf("Device %s write error.\n", E2PROM_DEVICE);" |9 }/ V( ]- z
- return -1;4 t! u: M- \' h& }
- }
S& _- o' d6 r4 b1 ?
$ r2 \9 p$ _; z! Z: ^0 P5 Z8 }& m0 v- return 0;
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9 q4 Y; V* e& p- int main()
; |6 z; f! K* K' i9 p) `, @ - {( O3 L$ i9 q9 G
- char c;
8 a+ q- R) h( v; Q$ U9 q - int i, macs[6];9 e3 g4 I1 S: j- a; Y+ r8 o9 H8 p ~4 r8 J
- unsigned char mac[6];
$ C; ]* J; g6 m* i8 N& u) d( I - unsigned char stbid[256];
+ p6 T/ S' L% ~; T% s4 Z/ h6 t, U
9 g s( r: ]! X# w( q |) |0 `- if (readparam(mac, stbid) < 0)
, O/ |/ w1 E$ R" V/ Q$ X3 a. q - return 1;
6 S3 Z2 t. S0 m( e; K0 t+ r0 ?
. [2 A% S3 p; G- ~- ]3 A+ K. l- printf("Current parameters: \n");8 h/ \2 C% d! r8 d. n0 A
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
% x9 j8 {; v( h: u0 b6 @9 u - printf(" STBID: %s\n", stbid);, T* A# V, ^0 d! }
- 2 n4 Y: J2 l8 B- r2 f
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");( u5 C/ w, c3 X. s+ N% ^7 G
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
, d Z. C) v6 n8 N' S - printf("Input MAC error\n");
3 Y4 U1 T. X$ p$ y; w - return 1;
* t3 }* |" e- }& O/ v4 P - }
4 j) \% o+ e7 _6 { - for (i=0; i<6; i++)mac[i] = macs[i];6 x, W9 n* I* ~5 i! n
- printf("\nPlease input new STBID: ");
# l' h# W. h3 m, N - scanf("%s", stbid);
" [* X5 A) P7 S* l, J( ^ - if (strlen(stbid) != 18) {5 \% `3 W6 p' U) L
- printf("Invalid stbid\n");0 I2 [) [7 C% f
- return 1; s( ?; y4 z* N' m7 u) b
- }
# ~/ T- |2 d) \9 j - printf("\nNew parameters: \n");) b( Q. {$ W U4 y* a$ D
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);9 X+ P# \' K5 v3 P
- printf(" STBID: %s\n", stbid);) `" S7 S9 n6 f1 t+ c: W
6 r/ X" ?& H% x- printf("\nDo you want to change paramemters? (y/N) ");
6 m2 q# Z8 o/ J3 G+ s5 m& { - for (;;) {
% r2 }2 S- Q* ^ n* \/ o - c = getchar();% ?* ~' ?; E5 Y/ M) B! O
- if (c == 'y' || c == 'Y')( [: I0 H2 N* s. r! G
- break;8 z" J: C7 x* B) @
- if (c == 'n' || c == 'N') {, `) F$ F8 ?& x, g( c1 e
- printf("\nAborted.\n");
" T/ g+ p7 V) M - return 1;4 Q) [7 ?5 ~% h8 R0 l. i0 v' v+ ?
- }
7 h b1 w. y; s! ]# `) U8 ]5 k: L% i - }. ~6 M& B* [2 \, c" `/ X9 I
- if (writeparam(mac, stbid) == 0)
! D; g- v5 o) x' F9 n# V - printf("Parameters changed.\n");$ r# l7 e- T/ q7 n; u+ c
- $ ?+ @5 F1 X u0 L( f% u- I/ W& W
- return 0;. F7 |& S* G3 Q% K3 R
- }
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