本帖最后由 0522 于 2012-3-21 23:04 编辑
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# a7 c8 \& X. h! Q7 c0 ~修改的代码早有了。到今天不会编译。9 j: z! d$ F3 L' J( `0 g) ~
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>$ D, R$ c- h& e4 _$ e$ Z* z) V
- #include <malloc.h>0 p* J- m% Z- \7 S. ]0 e' S$ r6 d
- #include <sys/types.h>7 V1 h1 t+ t: u+ a' L7 {
- #include <sys/stat.h>8 M2 p2 `# S) t2 _! ]
- #include <sys/ioctl.h>. L `8 u7 l8 I& J# w9 _2 c
- #include <stdio.h># c+ I8 W/ Q+ F0 T0 e/ |2 C1 a
- #include <string.h>7 g( K; {9 r r) @+ P9 K B
) Z6 s# \! t" D- G+ ~( f. _0 g- typedef struct {! m( h9 A5 ^, T3 M
- unsigned int e2prom_cmd_sub_addr;" E8 P2 t, t* P
- unsigned int sub_addr_count;6 Z1 H! Y$ |4 R! Z" J; b! C6 ~+ ~
- unsigned char* e2prom_cmd_data; u$ o- v- P: [# E/ z# X5 `
- unsigned int data_count;. ~( C8 ?6 f- z* H7 e
- } e2prom_s_cmd;
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: A% G9 s2 Y1 L: ~ l- #define E2PROM_CMD_READ 1
) p2 P# {6 h. |' B* h# i) F - #define E2PROM_CMD_WRITE 29 R. Z* e1 k7 b% P8 L, }5 ]
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16": t8 V2 D( z! G) s5 l
& v- x" z% ?, ^! Z9 r; y% j% V- static int readparam(unsigned char *mac, unsigned char *stbid) {' T( R3 U# l9 R& z
- {
$ k# u. k5 \! o- \1 l - int fd, ret;0 D0 x0 T# E) G% s) {/ O
- e2prom_s_cmd arg;
5 [1 Y4 i2 j4 `- v2 L% ` - unsigned char buf[0x18];
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& s# _. @2 l; ? r2 e! i. o- fd = open(E2PROM_DEVICE, O_RDWR);
9 J) ]4 j7 A- `0 `8 h/ u0 X - if (fd < 0) {
. f4 R' @5 M6 s* ]. x4 m5 L1 s) c8 R - printf("Device %s open error.\n", E2PROM_DEVICE);
& G/ W/ F& Q) X: c C3 ?/ E - return -1;
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- arg.sub_addr_count = 2;
9 x2 w% v0 P. I3 w' P& \4 A - arg.data_count = 0x18;2 S! l J j ]
- arg.e2prom_cmd_sub_addr = 0x290;# K9 ~' I. w7 x; u; D
- arg.e2prom_cmd_data = buf;* Y- h+ \8 g; y) z
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);7 f2 W$ Q2 c- n; H
- if (ret != 0) {& k0 S9 ^" d0 M- z1 p! Q
- printf("Device %s read error.\n", E2PROM_DEVICE);
" C( S# s8 @3 }. B# N' [6 y - return -1;
: n' M+ h$ P/ \, q - }
$ P0 Y1 z0 w& ^ - memcpy(mac, buf, 6);0 C) _* \* N/ p8 a; C( u$ B
- memcpy(stbid, &buf[6], 18);- J' U3 ?1 R1 K; P+ x, J% c
- stbid[18] = '\0';
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0 w& n) [7 w4 P" C0 F+ n$ ~1 Y- return 0;
: I3 m! u' f" r! R* p2 p - }; j5 m/ i8 O# h; b6 f
% q2 p; m9 @5 I0 a/ |' l# W& w* t- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;, R2 ~# E+ C) s; j( K$ J3 W
- e2prom_s_cmd arg; T9 J3 M4 u) Q6 K
- unsigned char buf[0x18];
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1 N0 s K5 }& h1 [- memcpy(buf, mac, 6);
, G; I9 Y$ n. x. d - memcpy(&buf[6], stbid, 18);# ^+ M2 \! [4 I' |, ~2 {6 a
- fd = open(E2PROM_DEVICE, O_RDWR);
4 f% [2 A1 p' u - if (fd < 0) {/ N! }5 y* A/ g; @+ h
- printf("Device %s open error.\n", E2PROM_DEVICE);( `0 R I o3 Z0 _0 E. |1 n$ R. |
- return -1;) c2 l& w/ H! U" {
- }$ [7 w1 W, B* z) m( E3 x/ }- ^! M( m0 K9 J
- arg.sub_addr_count = 2;, T" e' v) |+ H, B
- arg.data_count = 0x18;
" f4 Y/ U* v! X( V+ L; X - arg.e2prom_cmd_sub_addr = 0x290;
) G1 ]: @- P0 Z, X - arg.e2prom_cmd_data = buf;
3 z) n& d/ x8 [# V5 C0 N3 `: { - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
& N V0 {" V0 Y; ^ - if (ret != 0) {
/ ~: Q% W1 u& l1 ~$ V - printf("Device %s write error.\n", E2PROM_DEVICE);
6 ~1 g7 X9 X( O: a - return -1;
B, f: Q. D- B6 n# P G - }
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- return 0;0 V5 _2 Y" F4 Q M2 y
- }
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- int main()
3 E' x- H& n& U- A - {
* N3 G+ N o4 U( G5 p5 |% C - char c;/ v0 t/ J8 `) `- h/ Y$ f4 y! ^
- int i, macs[6];
7 X4 q; ]0 M1 q0 d - unsigned char mac[6];
7 |% w7 _: I. f3 @ P" G% d: H - unsigned char stbid[256];1 W0 E- A9 z4 d! O A% N8 r( U4 b0 W
- 6 u3 g/ J& X& \) i" c9 U- {+ M
- if (readparam(mac, stbid) < 0)
6 R, h G" v# n. h5 Q - return 1;0 `8 G7 l4 }( F9 F! v4 v+ @
( z: ~- U. z! L, p, a. ~- e6 T- printf("Current parameters: \n");- a1 Y/ M3 @' k1 s! K
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);0 Y0 w% U; K" i) R l5 m/ j; K7 Q
- printf(" STBID: %s\n", stbid);4 g4 ]2 o: Z5 O* R; Q/ L7 f
-
1 H' {+ Z- [0 [5 ] - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
I- A4 u) |6 `& r - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
+ z0 {' I% s9 G% O( ^ - printf("Input MAC error\n");
^, d/ S: S% q5 R- ^5 x - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];
' h& q& C' {2 e6 e- H8 R; J - printf("\nPlease input new STBID: ");. h3 V l1 I, }$ | z# q
- scanf("%s", stbid);+ F% j+ [( T9 y6 F
- if (strlen(stbid) != 18) {
# B! |* Y+ D/ y' E/ \2 y3 l1 @ - printf("Invalid stbid\n");( O }8 U: D& G
- return 1;
! c. o1 i0 Y: r/ R; N6 q2 a6 _ - }
2 i* B( s; [) ]( S3 F - printf("\nNew parameters: \n");
9 x5 ?* V- u, C# t - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);" p$ X& `) m0 U3 {8 t) K8 g4 `5 u
- printf(" STBID: %s\n", stbid);& O. }' o+ w' k) ~( N2 k2 j: a
8 D' X8 `; y# I( t6 ?3 ^- printf("\nDo you want to change paramemters? (y/N) ");
( N8 O7 S8 I9 Z! F3 j - for (;;) {
: Q: a4 O, C8 J" |" S - c = getchar();& W) g7 l& [5 g1 d1 X8 W9 ^
- if (c == 'y' || c == 'Y')
/ x" H; C U" `. G - break;2 o- {4 e8 C8 m& L$ N" b, S: \
- if (c == 'n' || c == 'N') {5 v4 N' ^' H7 h. j
- printf("\nAborted.\n");' y; ?1 i1 V1 p0 |$ ~
- return 1;
7 |0 h( H: n5 j* _( L - }; y: W9 }8 u) |% b! M# W
- }
. \! ]9 _' k5 N. ?; [# i6 O - if (writeparam(mac, stbid) == 0) . G+ R: R% w8 [# J( {
- printf("Parameters changed.\n");
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4 q$ J$ x7 y+ ?' G: C- return 0;
7 C0 L9 b: z+ a. e - }
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