本帖最后由 0522 于 2012-3-21 23:04 编辑 * B" M' t) S6 S5 n% ?- H
3 \+ p9 T& p/ ]. }/ `6 M4 R) f修改的代码早有了。到今天不会编译。
! G$ J. d9 @9 s8 P需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
2 J& V" O) m0 @ - #include <malloc.h>+ u3 q$ e# O% i/ p
- #include <sys/types.h>' ~" |( y) }, x( ^- ~
- #include <sys/stat.h>- W0 ~; c; t1 B9 B
- #include <sys/ioctl.h>4 X3 r/ i: q$ \+ {: H9 I
- #include <stdio.h>7 y% Y* R s z/ Z+ p# z6 b9 U& J
- #include <string.h>. t% I9 l3 P- N) S4 e1 y
$ e" ?5 s+ B4 F3 B+ l- typedef struct {
! n! `0 U& U: o) x b2 B, l - unsigned int e2prom_cmd_sub_addr;
& ~* T" p g5 p9 k/ ?7 ~ - unsigned int sub_addr_count;
$ L K$ n. M" X - unsigned char* e2prom_cmd_data;
. m* z+ j% U8 f - unsigned int data_count;1 S Q4 c) n1 X! s
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1: j9 x' Q7 a+ I5 f3 U* z4 R/ T
- #define E2PROM_CMD_WRITE 2
4 _0 e% m9 P- n: ^# A/ v; V" v - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
2 ^' y9 d4 J) @- ]$ u9 r s4 J: P - , q$ ?5 u6 p: x: Q7 j
- static int readparam(unsigned char *mac, unsigned char *stbid)
( N! s( H7 l& [0 o9 I# Z - {
2 @" d. g- G( g3 H1 f' u; ^. z8 B$ f - int fd, ret;* K: k: t( t2 u; ~
- e2prom_s_cmd arg;4 R. `) W7 ?3 `/ u# B6 h
- unsigned char buf[0x18];
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* W) T, t! {5 `" `' r- fd = open(E2PROM_DEVICE, O_RDWR); ?$ u# R5 Y7 y- G6 A4 G4 k& p
- if (fd < 0) {; p0 V+ e4 s) H
- printf("Device %s open error.\n", E2PROM_DEVICE);
2 g# W) C( a$ H6 g$ C' M4 |" V - return -1;8 d0 `3 n5 I3 {3 k
- }6 X& a1 y/ u. m, N& Z$ ?
- arg.sub_addr_count = 2;4 R% }+ j8 |1 N3 o0 C- T6 ?- _8 S7 Z
- arg.data_count = 0x18;- B0 t+ @0 y+ s
- arg.e2prom_cmd_sub_addr = 0x290;
4 X# F3 P8 }- S; g9 ~9 u - arg.e2prom_cmd_data = buf;2 s8 m+ M5 I. K9 ]# |* {3 x
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
+ L) b u* b) l% r: ` - if (ret != 0) {2 J3 V, M5 n6 p# g- b
- printf("Device %s read error.\n", E2PROM_DEVICE);
, w x1 W4 \# [ H& `/ @ - return -1;7 I* l1 g5 c- N0 M
- }
, \# ?- S A" n% Y - memcpy(mac, buf, 6);$ _, N( k i( K( n2 Q4 q* c
- memcpy(stbid, &buf[6], 18);
5 m" _% f8 v# U' { - stbid[18] = '\0';* e' Z% v, k! I- {
5 E% v( A; ~5 w' N5 o, s: J- return 0;
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- * @1 D9 C: g. U E% u1 K
- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;/ F0 m _+ E" S$ h, ]8 g" I; K
- e2prom_s_cmd arg;5 m* X( B$ B2 O* M) \# Z
- unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
$ u" N; Z- W; F4 u) z; t - memcpy(&buf[6], stbid, 18);( q% |' V) o* Z6 |' a9 r _
- fd = open(E2PROM_DEVICE, O_RDWR);
' @$ S0 w4 _% {: x. F - if (fd < 0) {# j% Y" e& o3 j; ~: I2 D1 m
- printf("Device %s open error.\n", E2PROM_DEVICE);
) }3 o% t `- H4 c - return -1;6 w* J. \$ {/ D
- }) a9 s3 |5 K* g2 K( F
- arg.sub_addr_count = 2;
1 {* F% p6 C, B! c" a; Y% ?$ u& D - arg.data_count = 0x18;+ {5 [2 S# w3 S: c% m/ k9 R
- arg.e2prom_cmd_sub_addr = 0x290;$ B* R) \; }% n7 B
- arg.e2prom_cmd_data = buf;
/ m1 |* T Y1 e! K - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
! F+ G& }5 E2 J8 B6 q V1 T& H7 W - if (ret != 0) {; v& F* L% p; L! f/ d& R3 e3 o
- printf("Device %s write error.\n", E2PROM_DEVICE);4 `. ]5 ]4 W# E! @
- return -1;. F8 d6 |; T# i. v$ K& r3 s+ Z3 L2 u
- }
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7 \: d4 K% K* T; @0 F& x+ N0 v- return 0;4 O2 o( n* g4 _" M6 W, i
- }4 @7 P ^& [$ q" z. n c
; Z* D0 f1 Q* F& `; T Y n- int main()
& \0 {1 f+ M/ ?+ Q% r - {
, K [+ [, y7 s) _: K - char c;
8 o, _8 }8 ?5 x$ R, c - int i, macs[6];1 o+ [) y: z" Z! m ^' r
- unsigned char mac[6];
4 @8 ~4 K4 U0 ]# ?7 Y" s9 n L. T+ Q - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0): e: M% y, v' w$ n
- return 1;2 |( M8 L4 r* h
3 I" o! a5 S2 }3 {$ d1 c" x- printf("Current parameters: \n");
5 ]8 D4 i; x# R( d" K( ~7 J - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);+ M( f+ {9 f g4 W
- printf(" STBID: %s\n", stbid);3 I2 d* O' Q% m3 f& D+ J3 O
-
% N( S! W+ c) b, q0 b2 c - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
, F8 |2 X/ [$ u+ S5 v9 w' I ` - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
/ ?1 E! G' M% L - printf("Input MAC error\n");
8 X6 C7 G0 }2 `; c m+ G/ v/ w - return 1;& Z/ ]3 D, n; \0 A' }8 ? D( M
- }7 p0 @* c. E2 r
- for (i=0; i<6; i++)mac[i] = macs[i];
9 g; O! ]& ] z5 t# \ - printf("\nPlease input new STBID: ");8 z& t9 t2 M# A L. m
- scanf("%s", stbid);! W/ v! p! b" l! {
- if (strlen(stbid) != 18) {
* y' W( z+ q/ f& Q' `' h1 D- K - printf("Invalid stbid\n");+ R/ c9 C/ V% F$ I& W. I4 D9 ?
- return 1;# H4 ^6 L5 ]- G: P7 K0 G
- }+ Y. y1 ` f( C5 {) p
- printf("\nNew parameters: \n");
( W- t! O% t0 y2 T* ]' N- F! i - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);9 X" A p, G/ J+ b* x+ _) W1 g
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");7 s/ x% r% O% w# o- E
- for (;;) {
6 L6 m+ u2 D* L9 ~ - c = getchar();
2 {* C5 @9 W' B9 A. H) \ - if (c == 'y' || c == 'Y')$ p) D8 I$ ]$ e5 o4 j
- break;, i, B M) {' h; \
- if (c == 'n' || c == 'N') {
$ x: ^# c2 J" o5 U4 S - printf("\nAborted.\n");# E& t0 A* O$ P" E3 N
- return 1;5 d, d/ j1 J4 Z$ h
- }
9 s# L ]* J0 x8 [9 T0 U - } q" D$ k1 T0 ^! A' l) c: j1 ^
- if (writeparam(mac, stbid) == 0)
* J7 m, S% B8 w1 j4 F, @. l - printf("Parameters changed.\n");5 j- \3 T0 Y, ?8 X) ?
* L9 l5 Q5 |. ^1 H2 B- return 0;4 y3 X m5 o9 e6 r) ^* z5 i
- }
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