本帖最后由 0522 于 2012-3-21 23:04 编辑
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% N* U2 s( t% [. V% j8 ^修改的代码早有了。到今天不会编译。' m+ }, R. m3 ?: \, R0 ?% k
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
2 d" [/ R4 @8 Q3 m* z, v+ m2 G - #include <malloc.h>
' i \& R y1 r, L- l - #include <sys/types.h>
' k2 @/ A; T8 |3 y - #include <sys/stat.h>
P2 N2 Q( E3 n& \* _+ \4 I - #include <sys/ioctl.h>( a3 d1 ?5 v5 k8 N* k/ a0 ~
- #include <stdio.h>
& ?1 j& `8 c3 L I& O. ?$ `( R. e - #include <string.h>
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- typedef struct {' W% p$ d8 s% l# ^
- unsigned int e2prom_cmd_sub_addr;
4 y' `1 d% n! @, l% ^. }! t6 j9 ` - unsigned int sub_addr_count;
' _9 i. ]) Q7 G5 a+ l% f) R - unsigned char* e2prom_cmd_data;+ r% b1 u; ~( k8 G1 E$ c2 m4 }
- unsigned int data_count;
1 q3 k1 ^+ \$ ?5 f - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1: {1 m* x6 q) X0 L& V$ l+ I
- #define E2PROM_CMD_WRITE 2 K% _4 o' ^" l2 k
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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9 a7 g, i* V/ l$ O- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
9 s% y$ y6 @/ N% x k' [/ Y0 e% d - e2prom_s_cmd arg;$ f2 I& c" x+ B) Z
- unsigned char buf[0x18];' D2 _9 L# Z, _0 l% D
& D) H! Z0 u3 z6 W- fd = open(E2PROM_DEVICE, O_RDWR);$ D, V% o7 [ {" j {
- if (fd < 0) {
& t, O1 |9 l* T/ r9 i - printf("Device %s open error.\n", E2PROM_DEVICE);. ?; \% W6 L6 l# x+ B, y
- return -1;# r' ^8 w7 i% ~8 D. a
- }
: b. X+ G/ g* D! O" x - arg.sub_addr_count = 2;
: T; Z0 k/ G* W4 ^* }9 `$ l. J- a - arg.data_count = 0x18;# ~" b8 f: H C
- arg.e2prom_cmd_sub_addr = 0x290;
4 b. ^$ d, P# y, C/ R, w2 i - arg.e2prom_cmd_data = buf;
- |; V5 ~3 U0 y - ret = ioctl(fd, E2PROM_CMD_READ, &arg);5 C! [. v8 s! n/ N0 M9 g
- if (ret != 0) {7 v+ V( u6 S+ w- |& Y0 @- w
- printf("Device %s read error.\n", E2PROM_DEVICE);4 L* u$ C6 O5 L6 i% w. j" H
- return -1;
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- memcpy(mac, buf, 6);
. G+ Q! Z' G4 a3 w( e - memcpy(stbid, &buf[6], 18);) K5 H% m; U: F- j8 X3 ], m
- stbid[18] = '\0';
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: f; ~) v" |2 q. ~( w- return 0;
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret; D& |; f. F% Z3 ?- I
- e2prom_s_cmd arg;
/ z! K5 d+ O9 s) q* | - unsigned char buf[0x18];5 ~/ ?. r- V* T: n; @
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- memcpy(buf, mac, 6);. P0 T, t8 W) W& n0 y
- memcpy(&buf[6], stbid, 18);- ?; [7 D0 |3 O6 b% T$ k# C) T$ N
- fd = open(E2PROM_DEVICE, O_RDWR);% Z. d0 V) V" Q# l7 x0 g
- if (fd < 0) {
2 I' o6 y1 m% L D - printf("Device %s open error.\n", E2PROM_DEVICE);
: d% k. R9 I' L2 C8 O3 K4 G5 [ @ - return -1;
7 o6 {/ k) }$ ~* ^7 z& n - }
1 H1 r# D9 {6 [* _8 H" ~" b1 N - arg.sub_addr_count = 2;1 f: g" b1 ]6 C/ G) ^& ^
- arg.data_count = 0x18;
9 `$ J8 ~! B( ]+ b9 U n - arg.e2prom_cmd_sub_addr = 0x290;
) f2 S+ m# x8 ]. ?; a3 d - arg.e2prom_cmd_data = buf;
- ]- W& @: x2 s2 J1 h - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
! t( a7 r/ f8 |- A' v - if (ret != 0) {: A1 {& y5 g6 c) B
- printf("Device %s write error.\n", E2PROM_DEVICE);
2 V1 |) I9 Z" c7 B$ @0 G - return -1;& y; C# U% ?& X" b$ v" \
- }
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3 j; n4 \ `; n& v1 R/ _* c8 e- return 0;% S% m* J) @9 n5 V0 v. ^
- }
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- int main()( p# y. D" y: v
- {
5 l. I; K& l1 w0 Q& i - char c;" J! b6 y1 d) d4 @ U3 `! G5 L' i
- int i, macs[6];
6 [( H3 C: Y e3 g' O - unsigned char mac[6];
5 E& C. g% V0 }4 v' f+ a& s1 Y* { - unsigned char stbid[256];& s! o; H+ F, N0 D) D9 l- Y, J! g
- # l: p2 I: q' y) l3 b
- if (readparam(mac, stbid) < 0)
7 _, [% x0 p+ b3 u, B - return 1;
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: m+ ]8 A$ S- n0 X' R; Y: Z- printf("Current parameters: \n");+ D! W) }/ h6 N0 y+ x Y
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); p6 G8 }; g! k, U. x7 ^
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
+ x/ J% Y6 M j" L Z2 w J; @- u - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {* Q' d. F& t2 c1 K' Y
- printf("Input MAC error\n");. d) a6 {( Q c2 S9 I" _
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];
. C3 r6 I) Z) p7 ^1 k: ]8 g - printf("\nPlease input new STBID: ");
( o$ z* } A6 k, d; P - scanf("%s", stbid);
4 V7 M9 ^- X- d - if (strlen(stbid) != 18) {2 _* t6 ~4 Q- R3 T3 f% ~3 v
- printf("Invalid stbid\n");; w' `3 A) k6 W1 \% S ^* \
- return 1;
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- printf("\nNew parameters: \n");
# V, r% t2 e% q r$ o( H - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
5 [2 a. Q9 k: T - printf(" STBID: %s\n", stbid);( j! r9 q f7 Y+ X$ v
- A3 z6 ^" `5 |7 b6 R# }- Q8 |9 n- printf("\nDo you want to change paramemters? (y/N) ");
: u3 O2 i4 Y9 ^6 G) L - for (;;) {8 r6 F8 x1 v" B ?# Q
- c = getchar();
- t) L: g. B! O - if (c == 'y' || c == 'Y')
4 u& N: v) B- {4 T& O - break;
1 Y' P4 O' N& W$ v$ E4 W; a - if (c == 'n' || c == 'N') {
3 K! x8 C: w$ A1 [6 g - printf("\nAborted.\n");) N0 B) g9 `2 B) }; v2 I# O
- return 1;
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- }
6 j* c2 \7 o& {4 ~, j h - if (writeparam(mac, stbid) == 0) : m7 l9 l& K) @* [
- printf("Parameters changed.\n");8 Y# y9 U# E, k. ?* w: ]
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- return 0;6 P4 L, ^" V; m3 J
- }
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