本帖最后由 0522 于 2012-3-21 23:04 编辑
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修改的代码早有了。到今天不会编译。) n$ F3 u# a1 l( P- G8 u
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>0 L. \7 H8 b F
- #include <malloc.h>
" T. s# A! v( U+ Z* h! A# Q# o - #include <sys/types.h>0 [3 `+ x2 N2 h: |) q2 U
- #include <sys/stat.h>2 _+ g! J* O9 M
- #include <sys/ioctl.h>0 _8 R8 }; l* h" h& z2 B! m
- #include <stdio.h>' E7 Z7 J! g$ u* e# W3 k. V# t
- #include <string.h>" U& Z; U( h6 D5 Y) h, @# \
& p3 N( B% a- V% k8 L8 n- typedef struct {
. w% P0 d) ~/ r3 S) V$ ^ - unsigned int e2prom_cmd_sub_addr;
2 M; y# x% X; v, {0 [6 Y+ C - unsigned int sub_addr_count;
( u+ ]7 U/ C$ @& Z% G - unsigned char* e2prom_cmd_data;
0 V) Y! x, g8 X - unsigned int data_count;& E1 b. |) `5 v
- } e2prom_s_cmd;1 x: v6 L8 S) Z
3 O; ?* K* D8 {3 i/ @+ H% h I- #define E2PROM_CMD_READ 1; l! `: `: l( E5 u7 u
- #define E2PROM_CMD_WRITE 2
. D l6 a3 g1 r$ d - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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1 I' D7 j O6 d& j- static int readparam(unsigned char *mac, unsigned char *stbid)+ c y g% s8 R6 z
- {% ~- K( q5 j7 P. i
- int fd, ret;
7 l& j/ [- |0 e) v, D! Q - e2prom_s_cmd arg;) Z/ ^ S! l) S; r7 f2 s
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
/ y8 q/ ~0 A% v. a0 |5 Q: n/ o - if (fd < 0) {& l3 g+ `- W6 a% W& o$ `
- printf("Device %s open error.\n", E2PROM_DEVICE);
# K) }! J& \. F/ S; u, |" U - return -1;
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- arg.sub_addr_count = 2;
0 j0 o5 B4 h2 S0 ?# E - arg.data_count = 0x18;
4 F9 h8 u+ A: T/ R" o- K - arg.e2prom_cmd_sub_addr = 0x290;
/ |' L4 x+ M4 y2 T4 G( E4 A# O - arg.e2prom_cmd_data = buf;
' g7 W* r" R9 {( Z3 X - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
; s& Z( b4 j! V& i& \/ s0 V - if (ret != 0) {
) Y8 ` S) k5 e% z% j! t+ D - printf("Device %s read error.\n", E2PROM_DEVICE);1 f8 s+ x$ |+ K |5 o* S0 }. [4 S
- return -1;
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- memcpy(mac, buf, 6);
- F* D; I& `4 f" e1 d, F: c" W - memcpy(stbid, &buf[6], 18);; o: p, ^# N! v
- stbid[18] = '\0';
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- return 0;
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- ~) n8 g9 ?+ f J- p- static int writeparam(unsigned char *mac, unsigned char *stbid) y/ H5 x9 T- Q3 l
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- int fd, ret;. G" D' l3 n N; j2 v
- e2prom_s_cmd arg;
/ A3 X( m$ q* c5 c$ ] r& G% E+ j - unsigned char buf[0x18];) t/ v0 y1 _& ?7 |" E" \
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- memcpy(buf, mac, 6);
% R/ ?* R% j* q( z - memcpy(&buf[6], stbid, 18);
8 B, H9 ]* Y* Z7 i - fd = open(E2PROM_DEVICE, O_RDWR);4 o2 w) s/ k2 u- p, m" X
- if (fd < 0) {
" P0 m: N* B, Y. }0 z1 Z2 L - printf("Device %s open error.\n", E2PROM_DEVICE);8 y+ ^% z# y$ C3 L
- return -1;
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- arg.sub_addr_count = 2;) E+ o0 T3 q9 k9 E
- arg.data_count = 0x18;3 o# a+ h, z* \8 h5 s
- arg.e2prom_cmd_sub_addr = 0x290;! D _/ J" k0 Y3 q/ T& f
- arg.e2prom_cmd_data = buf;7 [! p+ e: e& {% ?$ c. S
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
+ V3 n5 c: x5 d6 B - if (ret != 0) {) [; `* N8 q" i" k1 P( b$ x, F
- printf("Device %s write error.\n", E2PROM_DEVICE);
) j1 g4 L6 k& D2 u7 e9 c$ [. J+ w - return -1;/ j5 [, O& X* E
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9 s3 c& k* M! u$ A5 i- return 0;9 C; Z9 W9 E9 C& s5 ~1 O
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- int main()
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0 A' g# d9 n, J - char c;& ?! o) s5 f: k9 u! b( T5 K& q: r
- int i, macs[6];* f* x/ L% _# ~
- unsigned char mac[6];
) W d8 k" s5 @9 } - unsigned char stbid[256]; n! A# A, }; c, ?; B) j, O! o
- 4 h4 w$ i2 k3 Q8 _! S+ @9 {- C
- if (readparam(mac, stbid) < 0)
/ l' w& \' {# V0 b8 } - return 1;
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7 _( ]. M- E1 S) a- ^1 e' n4 @- printf("Current parameters: \n");
. s$ f& C8 F7 D! q& n - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);1 g# K2 W4 ~8 |+ E4 @
- printf(" STBID: %s\n", stbid);# u! ?! @6 {+ z4 k* y6 q
- 1 [6 x8 _# l: o" ?! |+ _
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
+ y0 Z# G. j6 N) X7 A9 s$ K - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
5 d" K# K5 @# N5 r. w! I0 k. ^ - printf("Input MAC error\n");. s1 `: k$ v, J9 v# X
- return 1;7 e- o- M% s" Y; h) y4 d/ @" I
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- for (i=0; i<6; i++)mac[i] = macs[i];
- x$ S: F: G& J; g+ @ - printf("\nPlease input new STBID: ");
" y6 b4 @/ M) w& p( ~$ i' E - scanf("%s", stbid);. ~; ?' x5 k' K
- if (strlen(stbid) != 18) {" R' E. o4 {' |, W% h
- printf("Invalid stbid\n");! Q1 M$ w$ N' m; b1 m/ z; a8 Z
- return 1;
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- printf("\nNew parameters: \n");
# a. ~1 n0 \0 w! `/ R+ i - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);& D: T" l. P* m& I3 {7 I9 D, W y
- printf(" STBID: %s\n", stbid);
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8 h4 Q) K0 d8 b' g- printf("\nDo you want to change paramemters? (y/N) ");
: ]7 Z C: n4 i. o( O* L0 g$ b - for (;;) {
$ O3 e3 U. o. F+ n - c = getchar();
+ B Z5 W* a) O s3 [( r - if (c == 'y' || c == 'Y')7 }0 X+ Q! M! _. F
- break;
3 c; K0 v& j/ e' ^7 b0 Z1 D - if (c == 'n' || c == 'N') {, a2 `2 ^+ F0 x1 ^2 y
- printf("\nAborted.\n");
9 q G4 l; I1 }& l3 d - return 1;
- r& z1 H: _( g0 z - }
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9 a0 }0 L0 l1 @$ f+ L" | - if (writeparam(mac, stbid) == 0) 8 Q3 `2 a$ u+ k5 L5 A+ V( Z
- printf("Parameters changed.\n");9 W& j0 y. Y$ z. u% }0 \
. v8 m7 `1 H% e1 X _, s- return 0;
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