本帖最后由 0522 于 2012-3-21 23:04 编辑
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% U: m1 h/ ]* k, J$ F0 e修改的代码早有了。到今天不会编译。
0 z, y2 K; K- }+ D3 |6 A C需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
! p) F- U( L6 P& Y/ c1 h4 R - #include <malloc.h>
. c8 |( S; c9 K% f - #include <sys/types.h>; P& L% g. g5 {6 Z
- #include <sys/stat.h>
0 q( K6 J$ p8 F& g7 w( M - #include <sys/ioctl.h>
% o& S6 r R' j+ g* n B. ] - #include <stdio.h>
4 T" a" _3 P! _. y+ u- Z8 U( q - #include <string.h>3 [: [; K* O, @% j! N/ t6 l9 g
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- typedef struct {% r& w1 Q- D6 u( x+ q" C' F
- unsigned int e2prom_cmd_sub_addr;6 Z3 V* _& H$ ?; Y2 M
- unsigned int sub_addr_count;. ` I( ? R! ?8 H$ l
- unsigned char* e2prom_cmd_data;- g, \% c5 ?9 `1 I/ q- y2 M e0 h
- unsigned int data_count;
' ?4 [0 P+ z( {' W - } e2prom_s_cmd;; C$ W5 m! a; h
4 x% E. Z4 I* u% }. w. w- #define E2PROM_CMD_READ 1& o% h2 g, T, F3 Q
- #define E2PROM_CMD_WRITE 24 O: j( U& }: J- `+ B$ B2 n& \
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"1 c3 f8 _& S& ~) ]) \; s* o
5 d% S/ Q% G, D1 L8 C( @0 \ ?: f- static int readparam(unsigned char *mac, unsigned char *stbid)( R4 P" M& ?- r5 p
- {% ` x+ i7 @* ^# O7 Y( b
- int fd, ret;
5 A' |; E/ E# t L - e2prom_s_cmd arg;1 {# s3 @4 q" R/ A4 a0 w7 A: W3 _
- unsigned char buf[0x18];" G& F# z" T0 I" \7 T
4 p/ a; G8 H+ e2 J2 A. Y, P5 v9 e- fd = open(E2PROM_DEVICE, O_RDWR);
8 i2 m) j& [! q& C! {: g* x - if (fd < 0) {
9 I1 s1 \- L- t! ]2 s0 v - printf("Device %s open error.\n", E2PROM_DEVICE);
& l+ F8 W0 L) e" R - return -1;! Q- p8 @& n; v# K
- }) @7 O4 x# J% W1 p* x" f& |3 q" U
- arg.sub_addr_count = 2;* D2 V2 J3 |0 W6 ]& Q3 D
- arg.data_count = 0x18;
* n* J1 C$ V$ x/ D/ n1 G3 r - arg.e2prom_cmd_sub_addr = 0x290;
+ N+ A. |/ D& a2 i0 x; p - arg.e2prom_cmd_data = buf;
1 f- C& E" i; m8 J9 N+ z - ret = ioctl(fd, E2PROM_CMD_READ, &arg);% [ l9 Y! @* }
- if (ret != 0) {
' S+ k; A! i& {# V3 t$ P9 t7 z4 C- n - printf("Device %s read error.\n", E2PROM_DEVICE);
; a/ R, P2 `% {+ T( d# H6 Q: T - return -1;% ^8 H/ R$ `( K0 P
- }6 b) K/ \" B9 N" n& c, u9 S
- memcpy(mac, buf, 6); d6 e9 k: [% V
- memcpy(stbid, &buf[6], 18);
* Y" b& z, c, n# U! Z) ]. H# A* w# c - stbid[18] = '\0';
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- return 0;
# r9 f {# U6 J q, b3 w+ E- p - }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
( K9 ~9 s. O0 F9 X/ }6 o+ r - {
4 T( o g5 F0 w7 \( i - int fd, ret;' T. P, r( N1 x; f6 H3 Y+ C4 z* f
- e2prom_s_cmd arg;2 c4 V7 e* S w* F
- unsigned char buf[0x18];; g$ i# Y$ i8 q6 Q- c8 X$ k* {
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- memcpy(buf, mac, 6);
9 w: v' H6 f1 {( _+ V' u - memcpy(&buf[6], stbid, 18);; x( N4 m! D6 q
- fd = open(E2PROM_DEVICE, O_RDWR);) }1 Z) R/ O8 W4 Q1 B
- if (fd < 0) {) D& J0 ^$ v+ E5 _$ q, ^) w, _
- printf("Device %s open error.\n", E2PROM_DEVICE);# Z, U9 N+ x9 s% J( J) ~
- return -1;
/ I) P( e$ ]! {; R3 `5 ?5 q/ A - }! r J* o0 ~8 J ~; z6 x6 w* b
- arg.sub_addr_count = 2;
& v. {* V2 B; G* |4 \, T8 } - arg.data_count = 0x18;
M7 J) j; ?/ n# |) O) v" j - arg.e2prom_cmd_sub_addr = 0x290;
# |. z: R4 ~( V - arg.e2prom_cmd_data = buf;
# L7 K8 r5 U d+ t; `' u5 l2 K - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
4 A. A) Y4 S2 U5 ]- M7 J0 ? - if (ret != 0) {
- ]; ~9 K* X* }! |8 h - printf("Device %s write error.\n", E2PROM_DEVICE);
3 l; |. x0 A1 V - return -1;
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, {' ~6 A$ N; Y4 m' I, R- return 0;' o7 K' r- J4 R" m3 A: P# E
- }
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0 T6 A& B! G; |* \: k4 V- int main()
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- char c;! S* `1 l! {. Z7 J" Z2 f' U& J9 V- y) C+ z
- int i, macs[6];1 x7 j2 ]6 b" S2 G+ L4 W0 c4 }$ I
- unsigned char mac[6];7 G- l1 q, I6 ^0 S# K. l
- unsigned char stbid[256];5 j3 j* g* j" k) y/ s
- & I- t" z! v* y# R* D1 a; A, U) u
- if (readparam(mac, stbid) < 0)# ^5 \& `" y, b S9 E+ ]$ m
- return 1;5 a5 i& M- b1 x, P6 s# D: }
# X0 Z* a. m6 r r# f2 [- printf("Current parameters: \n");0 D$ \* u U: |& b0 p Z
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);8 \" j4 p; I- |: W/ O( J, |
- printf(" STBID: %s\n", stbid);
$ N. U! `" I- r5 X" f5 n1 g/ Y - ( ~% Y$ B( S" Q' M: i7 \
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");5 l u# z& o! A0 s+ S
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {1 _3 z5 e4 K7 X0 d
- printf("Input MAC error\n");$ b3 v5 [4 r* ^: [
- return 1;
2 I* Q) q; _, U! a. }, k" F - }
9 }. z' {: y' K, E2 P2 A8 z: l - for (i=0; i<6; i++)mac[i] = macs[i];0 l) `% T3 y5 B$ p
- printf("\nPlease input new STBID: ");
& _+ b+ A% i; U3 Z$ F4 R8 M3 h3 N - scanf("%s", stbid);
$ n! M3 c1 p& M0 f# Z - if (strlen(stbid) != 18) {
) O" c2 s, w/ p6 P3 B* a. r - printf("Invalid stbid\n");
0 X5 O6 P* x% W @9 k# d \( e - return 1;% c/ a6 J6 r& \" W' b
- }
$ T6 K. r2 v$ T$ | - printf("\nNew parameters: \n");3 {' j- V. U6 Q' e6 J; r0 ]9 o( b
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);2 L. F1 w, ~) s3 k$ Q1 @' h9 ?
- printf(" STBID: %s\n", stbid);# q# {4 P4 x: q4 s
+ x* o" }. c' h* O+ p# w& _! y- printf("\nDo you want to change paramemters? (y/N) ");
m7 z8 w7 `0 k! r X) A- _ - for (;;) {
) [2 n: O3 e# A" Z' w; k1 { ` - c = getchar();$ l, }# K# Z, f- P0 o1 {) P
- if (c == 'y' || c == 'Y'). a/ F# R& Z& v7 y
- break;
" Q( P5 Q4 R! |2 n _& r! V! h: P - if (c == 'n' || c == 'N') {
% e- z h" d& x - printf("\nAborted.\n");2 P: z6 t+ U, c# f- ~
- return 1;
% g% k3 ]$ J( A3 Z" I - }
0 m) ~) P: L* R& [7 b* @. S0 P - }
0 o+ Q$ Y$ C* M5 x4 {. Z7 {6 p/ A - if (writeparam(mac, stbid) == 0)
p$ M3 E' F6 w! ?1 Y' g% a7 M# r1 F4 H - printf("Parameters changed.\n"); R. N" i+ V( X5 K- V
( b- L( k9 ~& H% O0 K3 ^) j6 ~- return 0;4 D9 Y9 V& G( d" R
- }
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