本帖最后由 0522 于 2012-3-21 23:04 编辑
$ M7 E- P7 G% r+ y# d
$ ~/ H5 N3 X' _/ l+ [0 [修改的代码早有了。到今天不会编译。
" E* V2 o l) L& p6 y5 x S& m需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>9 W9 \9 y( s! D0 U+ M
- #include <malloc.h>- N. j3 ^& T, d8 _4 v2 s _
- #include <sys/types.h>
* T: c* T. J! G4 k - #include <sys/stat.h>
% M( M$ ], p( m$ s+ Q# p% c0 Z/ M - #include <sys/ioctl.h>, u/ v* l3 r2 ]" y# y3 [
- #include <stdio.h>
$ H, _( c8 X0 G& `5 f/ \ - #include <string.h>
" L' l. T0 g" D0 |- \2 L" x6 {
* P U6 W0 M2 v" ~6 ?) r, p5 Q- typedef struct {
, ~ @; j0 s' c+ \% ` - unsigned int e2prom_cmd_sub_addr;
* t0 K2 j" x L0 p) a: v - unsigned int sub_addr_count;
$ c1 F; V% b- a( |( h: {) u! ]2 K - unsigned char* e2prom_cmd_data; {& c- s/ Z2 [( J3 p( ~/ g
- unsigned int data_count;
& B( X1 R$ H& H3 w - } e2prom_s_cmd;
2 H1 R; T1 J* U/ K" i
$ J2 d( y4 \/ v" ^: B- #define E2PROM_CMD_READ 19 ^ ~* j1 i8 F, u* |4 T" P
- #define E2PROM_CMD_WRITE 2
& m. V G4 ?- X2 K - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16" q2 ^2 T: ?5 f/ a. j* G# [
' D# Q$ k$ c8 ]$ n- e+ g- static int readparam(unsigned char *mac, unsigned char *stbid)1 G3 d% H! ]* l6 ~5 u# S, e
- {
9 z! V, c) F; j& T* V - int fd, ret;
+ i4 z* z2 z: `9 I, D% L - e2prom_s_cmd arg;
/ Q, y( _. Z2 o, U2 J, D& @ - unsigned char buf[0x18];' u. I2 Z+ s" V2 M& u
1 F) r+ m+ e5 M1 s- fd = open(E2PROM_DEVICE, O_RDWR);$ r% b- p- U: a: g6 J
- if (fd < 0) {$ q9 x: C" c1 i6 Q3 F
- printf("Device %s open error.\n", E2PROM_DEVICE);6 r. L" Y/ [+ H0 l; j
- return -1;
7 f! H u' X6 v' A9 ?% Z4 g - }. s' h6 v' L7 p
- arg.sub_addr_count = 2;3 g* n8 H J) e9 f
- arg.data_count = 0x18;
% e- [' S1 Z1 T% m. c8 K5 G2 L - arg.e2prom_cmd_sub_addr = 0x290;
4 K6 `" p. W' U& t- v- b7 J - arg.e2prom_cmd_data = buf;
9 w" B; S7 r! P1 _( o/ Q+ r - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
0 D4 l; h+ z6 G% O - if (ret != 0) {
6 g' \; {+ `* g" ]) F7 V L. @5 {% r - printf("Device %s read error.\n", E2PROM_DEVICE);: I1 B- b5 @8 Z, I
- return -1;
: Q; K% q1 \- i. ]- f% D - }: j. O8 r9 q' D2 S) c: { S6 t
- memcpy(mac, buf, 6);. _! p0 h& U, ]
- memcpy(stbid, &buf[6], 18);& d$ B+ e# Q+ {- ?
- stbid[18] = '\0';+ S8 E: ]+ u$ H& ?% T
p# B9 J$ { p! t- return 0;
# e8 ?% j/ O' V9 y' J s - }
- C/ ]0 n# D% ?3 Y" e$ I - " @1 x v/ ?3 W& A
- static int writeparam(unsigned char *mac, unsigned char *stbid)
& Q) W# h/ r4 `' g& n/ L - {, O" ^$ l( B G" C c
- int fd, ret;* b, D! ~+ K' w$ [5 ]6 m& I1 f! _) k
- e2prom_s_cmd arg;
7 m! i; S) ^* ?) a3 J/ ^7 o& x6 c - unsigned char buf[0x18];/ |( Z2 l; l/ J1 j" F: Q
& O3 J6 J' L6 G9 ^( P- memcpy(buf, mac, 6);
7 o( j& q6 E! J3 e - memcpy(&buf[6], stbid, 18);: c" g- Y7 |1 P! q9 p0 m
- fd = open(E2PROM_DEVICE, O_RDWR);8 n8 W9 u# e8 u3 |
- if (fd < 0) {
' S. E# M0 P" d1 \1 W - printf("Device %s open error.\n", E2PROM_DEVICE);1 H5 n* b* H; u. h, a. x/ J
- return -1;) W3 _- `2 i r7 H
- }* x& r! l+ ]4 _+ N0 k F, O# I& P
- arg.sub_addr_count = 2;
/ X' j) f/ b R H - arg.data_count = 0x18;
8 _- d0 _) |% F9 s% f - arg.e2prom_cmd_sub_addr = 0x290;# E5 ~7 I4 c" W
- arg.e2prom_cmd_data = buf;
( N. i* T' u/ W4 h - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
' B& r4 o& ]& x* }3 g% H - if (ret != 0) {: X8 G% ` B. j* B
- printf("Device %s write error.\n", E2PROM_DEVICE);. a2 s! h( v* |9 j
- return -1;
# t# f& I" `+ b+ A) m - }) _3 b4 Q2 P1 U: ^5 g2 y* o' ^: w
- 8 ^& u4 K! _' N+ E0 D4 [8 h* P
- return 0; x8 N% v6 ^1 a# p @
- }- G! P# a1 o' Q
) {1 f: A8 u( z2 `- int main()
% E7 ]1 g: W# y- `9 R - {1 d& I/ g' n% P9 ?! V1 N
- char c;2 l6 N. J( E0 i- S7 k3 c
- int i, macs[6];2 Q" @$ }- {% J$ b- }2 q6 K' \6 s
- unsigned char mac[6];
9 ^' d- x) j6 J - unsigned char stbid[256];- Y* ]3 r0 W9 r4 j9 B) q
7 ^5 q# z5 A5 ]- C; |7 x- if (readparam(mac, stbid) < 0)* K* v! ?! t/ q' T( Q
- return 1;
# D( w6 W6 C2 j2 z G - 0 E9 R9 n1 i0 h& @; ]9 G
- printf("Current parameters: \n"); `# y0 t5 A. K0 l
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);" O% V5 @5 l) y4 t& v' w- o
- printf(" STBID: %s\n", stbid);
8 t/ _3 Z7 b' l8 m3 E8 R8 P - ! {9 p6 O- u, w/ T2 \) L; G
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
% m& G b2 A! h1 b( X0 N - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
* |% c9 y" n: h, k( x1 A6 V& X4 _- B - printf("Input MAC error\n");
2 {9 Z9 D' E$ Z7 i' h - return 1;4 T4 s7 j8 F. C! a* n
- }
" G2 k% A' _4 O. e - for (i=0; i<6; i++)mac[i] = macs[i];
; V8 e" _0 [2 ?' F9 I# d - printf("\nPlease input new STBID: ");/ R; r) X7 X& |% h% r0 L
- scanf("%s", stbid);
' o7 s$ g( v" B - if (strlen(stbid) != 18) {
2 V8 ]" @# t4 c' {) g, h8 X [6 \ - printf("Invalid stbid\n");: e# |9 e3 ]# t+ l2 G! P
- return 1;
! G/ f) y4 [7 @; C( | - }; I: L2 M- V. O4 F
- printf("\nNew parameters: \n");; [: D& o; C$ x r; x1 Y$ x& q( N
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);! B7 \6 Y, L6 W
- printf(" STBID: %s\n", stbid);
$ k6 a! Q/ T- F, g/ S( J
( q4 f- s5 h* v7 ^9 A" C- printf("\nDo you want to change paramemters? (y/N) ");
- W# R1 f0 \1 C+ o/ g - for (;;) {
& N/ \' u8 }' D2 E; H L - c = getchar();
1 F5 d0 M+ X( y6 O2 Z j - if (c == 'y' || c == 'Y')( r, F! p7 w, Q) \( E' c. e
- break;
% l0 g; i& {- e - if (c == 'n' || c == 'N') {5 k- j# j. {0 i; B
- printf("\nAborted.\n");5 A7 m: c+ j& U& a f6 K5 }* _
- return 1;
0 r4 \3 ^! ]( ~ - }
. B' S9 B3 J5 I3 F3 e1 Q - }
8 p4 |6 L# Q u/ ? - if (writeparam(mac, stbid) == 0)
1 M" [' c. R/ q4 F: p( ~8 \1 n - printf("Parameters changed.\n");% C# D, E" j, V0 o2 L* t _' V) m0 l
; t' E7 x( s4 ~0 G$ ]- return 0;
1 r1 |" ]% D* ^, t( U - }
复制代码 |