本帖最后由 0522 于 2012-3-21 23:04 编辑 - p3 A# h0 y9 B" b
9 g/ k$ K/ Q+ u8 u/ D% a修改的代码早有了。到今天不会编译。2 t8 q N3 i, A0 Y' A0 g
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>2 ?! g" @( q g
- #include <malloc.h>
0 l$ [- ?4 i; L6 A4 F, e - #include <sys/types.h>3 Y" z: a% i1 a/ @4 G. `3 H
- #include <sys/stat.h>6 ?* O2 \% r) m8 O
- #include <sys/ioctl.h>5 a- q. q# y! A
- #include <stdio.h>- b( d* i6 b( i5 g; m
- #include <string.h>2 y, k1 b2 Z ~
: S1 \/ b) I! [- typedef struct {# o) g3 d, f+ g: L7 W. m6 s4 |
- unsigned int e2prom_cmd_sub_addr;
2 k r4 f* L9 S9 E. s - unsigned int sub_addr_count;$ c, M9 W1 d3 q* U* ?
- unsigned char* e2prom_cmd_data;9 s; F% Q" X" }# E+ M
- unsigned int data_count;. e. s& s$ v/ E: I7 U5 m; h
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1 L0 G) F ^4 k" |: [% M/ M( W6 T
- #define E2PROM_CMD_WRITE 2
" c Y5 @! u, C) K+ W7 b1 u/ ?, d - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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# L: r/ X" U: q7 l8 z9 W0 k- static int readparam(unsigned char *mac, unsigned char *stbid)
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5 Q8 v& `, I. Y3 v- |: g - int fd, ret;
" v5 }6 ~* P: N - e2prom_s_cmd arg;
: \# A" s0 I" d& } - unsigned char buf[0x18];$ Q% j6 h1 f6 Z0 b
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- fd = open(E2PROM_DEVICE, O_RDWR);
$ k, O$ r- q" ~' g' j - if (fd < 0) { N( L+ Z) ?+ }' Z+ e
- printf("Device %s open error.\n", E2PROM_DEVICE);* M3 d% k6 ^0 w$ n, ?3 j6 ]6 c
- return -1;
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5 f1 j& Z$ Q+ ^ - arg.sub_addr_count = 2;
: V- _7 W4 \& V) ~ - arg.data_count = 0x18;" Y; }& K6 p0 I7 \, P ~" [
- arg.e2prom_cmd_sub_addr = 0x290;
6 Q$ S) |6 J ~; w# S8 f - arg.e2prom_cmd_data = buf;
8 [- Q2 m# B- n8 r - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
9 V3 b: F: k# t/ ^: z - if (ret != 0) {
8 ?; g7 F7 a6 `. N0 | - printf("Device %s read error.\n", E2PROM_DEVICE);# T" |9 Z7 I& b8 s+ T" _4 v4 e& ~
- return -1;
S9 b0 v" Q% v: H) h ^; b - }
% L) `1 _% m) b - memcpy(mac, buf, 6);
: B" d5 P. w& K( V - memcpy(stbid, &buf[6], 18);& C2 X | m( W6 a- h: ?
- stbid[18] = '\0';) W" i+ R9 F. @
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- return 0;8 R; l$ L2 x& O# |: N
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! ~4 i" v$ M; `3 G7 {9 o; e- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
2 G( P. V9 ?8 L6 c# b+ @! g, L - e2prom_s_cmd arg;
0 {. ?% |! K: ]$ P7 }; }1 Q: b - unsigned char buf[0x18];5 ?- b! t* ?$ E* H+ S
4 Q R7 x3 _& J [9 R, j- memcpy(buf, mac, 6);8 a" @+ B/ h5 G" }( B& {9 l E: p
- memcpy(&buf[6], stbid, 18);* D+ c0 Y+ ? c/ h
- fd = open(E2PROM_DEVICE, O_RDWR);
8 y5 T- G4 X# v$ ^" G! O; t) M/ j - if (fd < 0) {
1 h$ }" R/ `8 K. a' _2 V - printf("Device %s open error.\n", E2PROM_DEVICE);
4 f, w9 I5 l9 L8 b# f - return -1;
9 b5 F4 B& e4 o* Z - }
4 r H7 M/ K! K2 K1 W5 P1 D - arg.sub_addr_count = 2;# h0 o6 n+ e U5 K6 \ W5 U2 P
- arg.data_count = 0x18;
. y& s2 Q3 q: d6 g& _) X- Y/ ~ - arg.e2prom_cmd_sub_addr = 0x290;3 d" Q, {. z7 u8 ?6 R2 N. _
- arg.e2prom_cmd_data = buf;& t% @0 v8 U# b
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
) ]3 @1 v$ n# s. k2 l, E - if (ret != 0) {
, ?, Z) [) C! }) [$ z0 K; s - printf("Device %s write error.\n", E2PROM_DEVICE);
: V2 A0 c. X' ^8 F# C6 `' ] - return -1;1 V: P& `! ^* }: L( G" K
- }
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6 K8 g1 `2 c5 Z. k$ d, t0 M& R8 i& }- return 0;
/ E5 s4 v9 [8 h& H) J5 l8 | - }
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# h. k! m" f* h- int main()% p+ l- J# T# a1 `- u! [
- {
: h" y$ e8 J$ E# c* V; z - char c;) s& ]! |( v5 _6 A M$ O* z5 u( c
- int i, macs[6];
, n, e2 N; z v* ` ^1 P1 Z3 T - unsigned char mac[6];/ G8 H/ u1 E' v1 h
- unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
9 x9 T% G, @ a1 o' N* P( f - return 1;
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- printf("Current parameters: \n");
0 g8 f1 K, U$ V2 C1 p9 P( A1 w - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);. S6 { A3 Y. C$ {
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
, d; v( Q' t, ?6 a - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
% R, t9 m k; x; L; K - printf("Input MAC error\n");6 @0 n- U8 C H7 X
- return 1;! V) l6 ?3 Z3 G& P5 H$ [7 ^
- }
- H Y8 q. |5 M$ G. Q8 y3 W - for (i=0; i<6; i++)mac[i] = macs[i];/ Y% S, r+ N( K/ g5 b' U/ U
- printf("\nPlease input new STBID: ");
' O2 t/ [& f8 S# I+ z0 @8 c - scanf("%s", stbid);
$ H. b) ~# I D7 u! \- ^ - if (strlen(stbid) != 18) {' L% d! c( o+ T% H- U0 L
- printf("Invalid stbid\n");, E: |/ w3 N5 B! W+ V$ E% X2 ~
- return 1;+ W, [# T8 z0 \+ ?8 M4 g
- }
: D+ F0 I, Y8 i; k: ? X - printf("\nNew parameters: \n");6 q& x0 h& L# }) T8 \, f+ R' d) t5 C
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
! B; x& j6 k0 a! J2 f/ ? - printf(" STBID: %s\n", stbid);3 X* O8 b% S: w! _
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- printf("\nDo you want to change paramemters? (y/N) ");
) z3 N7 z" r. N/ T! q3 K1 ?* q0 e3 X - for (;;) {
; R5 l6 T. ~0 A0 K$ b - c = getchar();6 s, y* O# P* X" k9 \5 E
- if (c == 'y' || c == 'Y')( c1 u( t. b6 }* W' N
- break;/ _1 v, L8 ?, D+ r$ B" o+ |
- if (c == 'n' || c == 'N') {* B" c3 s3 f2 H( C4 k g) ^. X$ r
- printf("\nAborted.\n");" c0 y* ~# A4 o% W, p3 E
- return 1;
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- }
1 l0 _& \5 I5 t1 |9 E - if (writeparam(mac, stbid) == 0) : I0 Q) j* f+ e( b# e: v" s3 I
- printf("Parameters changed.\n");
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- p# W2 j% [/ `& b: y5 @- return 0;
. |# l% o5 J" ^9 ~! W# w$ ` - }
复制代码 |