本帖最后由 0522 于 2012-3-21 23:04 编辑 0 U1 E& I: p& c% e) C" k
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修改的代码早有了。到今天不会编译。
0 B/ \( {$ B s5 \6 Z- h需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>/ Q8 b: S! v) U, w! O' L
- #include <malloc.h>4 o+ h6 p' I e! ]: U
- #include <sys/types.h>& l' E8 B$ H& M R6 M6 _& C
- #include <sys/stat.h>$ ?, n6 S3 F2 ~7 X t5 r2 E T7 w
- #include <sys/ioctl.h>
/ M2 f) v, m8 F# H; X& w5 U+ A: ` - #include <stdio.h>0 O8 m# T9 T; X3 p6 g6 B& s
- #include <string.h>8 t9 N1 o$ b! G/ ] x
7 i N+ o2 l% R( a3 k$ M- typedef struct {. e+ U& U2 {6 f9 @1 a
- unsigned int e2prom_cmd_sub_addr;
- t; ^# S5 [+ A& g% z - unsigned int sub_addr_count;
- |/ ^) G; o7 W - unsigned char* e2prom_cmd_data;
$ u2 H, M& R a( d+ I/ ` - unsigned int data_count;
9 A/ b- J& c' B2 b - } e2prom_s_cmd;
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0 B5 C4 `' p% Y; i- #define E2PROM_CMD_READ 1
& j8 z2 x4 z6 u6 y& l - #define E2PROM_CMD_WRITE 2) i4 a) Z4 ~9 W4 L
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)5 Z1 n" c" E- z7 p
- {
R( n2 r+ G" S; { - int fd, ret;! X9 l: q/ K/ b
- e2prom_s_cmd arg;
" _# S, o' [0 h2 t - unsigned char buf[0x18];$ @6 b) S# v. I* e' d6 t$ `
9 [; c" J3 k: `" T- fd = open(E2PROM_DEVICE, O_RDWR);$ `2 }( E0 r G8 o
- if (fd < 0) {
1 V: q$ P5 z/ ?' L - printf("Device %s open error.\n", E2PROM_DEVICE);( g1 d! d; v$ l5 r' \3 }8 a, M
- return -1;
7 E- ^- j' |# c7 c d9 r. h - }
. `" J6 E) y! \) q3 E9 t - arg.sub_addr_count = 2;$ e) J( B T+ o3 X& V
- arg.data_count = 0x18;
9 }- C/ w. U: \1 x, q - arg.e2prom_cmd_sub_addr = 0x290;* G: M5 ?* l5 r0 W
- arg.e2prom_cmd_data = buf; y- J$ |- A/ z
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);0 h- d1 }5 X0 B4 a1 {7 | \' U' U
- if (ret != 0) {! X! H8 i+ Y! p& P; M* i! Q1 o
- printf("Device %s read error.\n", E2PROM_DEVICE);: ?3 \' [- R& w# X6 r' A
- return -1;
' U% {. @# V) K* H# Q; @+ ?( u5 J - }
( r5 W4 T, z5 J* x - memcpy(mac, buf, 6);
0 A% N) m. b% C- g - memcpy(stbid, &buf[6], 18);
+ W. O/ q: j/ j, H; r, d* c' h/ W - stbid[18] = '\0'; ?* ~& D# ]4 S, K5 @" J# q; [
& ^* m: d3 i0 [% ?7 }- b- return 0;5 ~6 ?) K& s; q/ U% a; H
- }0 b5 ^2 R7 |* i! W
1 y+ w6 l" b* ^; k2 w5 h- static int writeparam(unsigned char *mac, unsigned char *stbid)
+ b# v* X; g) |& ~" x; _) G9 f: F - {' q9 z& ^5 v6 N0 l. T9 R. f f
- int fd, ret;
' P; z% D! h1 S; ]" X- T - e2prom_s_cmd arg;
: o1 |* x" [, C! S7 U* g/ r9 V - unsigned char buf[0x18];) h* G1 g0 R( A/ B9 j
- 6 r9 B/ ~6 C1 C% T5 r( N8 O, Z: x
- memcpy(buf, mac, 6);: @( Z' d. }7 P, l3 @! p
- memcpy(&buf[6], stbid, 18);
) u5 C5 d/ B* o* x' W - fd = open(E2PROM_DEVICE, O_RDWR);: Y# h, T W2 A7 `. n3 h2 j8 ^
- if (fd < 0) {
% `7 h6 o- `+ I# f7 e - printf("Device %s open error.\n", E2PROM_DEVICE);. N# d& `" i' I- x0 C
- return -1;
+ ~( X' j1 X# q# |, Y0 R - }7 q1 X! q# ~, I; N7 V- S6 R. z9 E
- arg.sub_addr_count = 2;
1 {% T7 D6 D9 x; o/ d2 X - arg.data_count = 0x18;
& n0 y& J# }( t7 n - arg.e2prom_cmd_sub_addr = 0x290;
2 g5 V) ?! Q2 n - arg.e2prom_cmd_data = buf;2 |9 O+ e* i" R% k
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);( X+ e; X! O/ ~3 j; U9 y
- if (ret != 0) {3 O4 G. R5 }" K; [
- printf("Device %s write error.\n", E2PROM_DEVICE); h9 E5 b( s* Z7 l, E" x! `' [
- return -1;
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$ H2 a: e; b3 E* s' g" U) ]- return 0;/ J4 I4 Y Q* i
- }
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- int main()3 W* f* r5 f! t( p) b, V
- {
8 y3 d+ g3 d# D4 ]: S: D( d/ `1 o - char c;& y1 t# r& C8 l6 @
- int i, macs[6];
- W3 ?# ?! \5 Z7 U1 R, _" Z+ R - unsigned char mac[6];, h. l" x7 {7 [# E7 b
- unsigned char stbid[256];9 b/ \4 s0 z% s9 i
- 2 U# x) |8 z2 d7 b
- if (readparam(mac, stbid) < 0)2 i2 _( \( U+ i( D+ y3 h# R
- return 1;
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- printf("Current parameters: \n");9 }# ]- h0 K3 A
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);% D g. D( D4 m6 U
- printf(" STBID: %s\n", stbid);( d( F" j. [: a) R$ {
-
5 Z) L' H, e; n+ a5 g - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");6 O3 G0 P# ]% q
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {' r K2 |- {0 E" N+ O) k* Q, f! \, ?
- printf("Input MAC error\n");7 X1 d$ F! C A7 x
- return 1;% m0 }$ ^; O0 J* N8 n
- }; u: G" j5 g- X- y9 f
- for (i=0; i<6; i++)mac[i] = macs[i];
) m" |1 E- H$ ^ - printf("\nPlease input new STBID: ");3 }; M8 `9 I7 r/ E
- scanf("%s", stbid);% M8 Y/ P( a- L* W) x/ z
- if (strlen(stbid) != 18) {
) k( m1 C; l# { - printf("Invalid stbid\n"); h6 g/ F& X! ]3 h; e) I
- return 1;
1 r t5 W+ g% _: A - }
6 v8 j' m( T3 u4 l3 [9 I% h- c" Q) H - printf("\nNew parameters: \n");/ f# r: x7 v7 D$ O0 ?( [% j" D
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);2 u/ O; ^ A* W& F
- printf(" STBID: %s\n", stbid);
4 M! M( S! k1 i- ~$ q( b* D - / C1 a) q2 p n; I% O+ e3 ?
- printf("\nDo you want to change paramemters? (y/N) ");
3 y' {3 ^( v# Z% j3 F* O* g - for (;;) {
5 U3 i z3 i- w9 k - c = getchar();6 T$ d9 f. A% N- d7 j2 x3 Z" b1 V: e" v
- if (c == 'y' || c == 'Y')( g* D& P7 c: {- ?4 K# ~
- break;$ P' g" ]. d. N) n N
- if (c == 'n' || c == 'N') {
1 M2 U/ }( K1 x4 ^5 P, }7 _7 B - printf("\nAborted.\n");; v! m* k0 O! j/ \
- return 1;
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- }
9 d- n* s) v1 s$ F' A - if (writeparam(mac, stbid) == 0) 0 z$ k9 d* i A! U: J
- printf("Parameters changed.\n");, [, o5 @ L' m+ k& Y, O
- 6 y: j! {" k/ C: a
- return 0;) `% I5 A9 {7 {5 v
- }
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