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。
4 |7 Y0 j5 Q9 k, ?# O需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>3 Q' }# L$ u$ f- A+ O
- #include <malloc.h>! E( O3 N" T, f3 X6 E
- #include <sys/types.h>
6 r" T9 D5 S, E1 Z, l6 I& L - #include <sys/stat.h>
/ @' y' ]. S" K& O7 A% J$ r - #include <sys/ioctl.h>8 }9 Z$ L+ v2 ?! y
- #include <stdio.h># L5 d3 L2 \- p2 p4 r
- #include <string.h># D! }! o0 d1 t5 [8 r( ~+ w
9 ?8 P! q2 q- ?2 J& z) q- typedef struct {
# z, ~ c, K& [3 Z# S) O - unsigned int e2prom_cmd_sub_addr;3 r; X3 T- w/ g9 ]! H
- unsigned int sub_addr_count;
) [+ W2 F0 z; n4 Y8 q' e& Q - unsigned char* e2prom_cmd_data;
( M3 G' ?* N6 V; M. T$ f - unsigned int data_count;
5 P) J G% ^8 F4 m - } e2prom_s_cmd;
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) T. w: b \+ M1 f+ }0 _- #define E2PROM_CMD_READ 17 L/ _8 g" B, A1 f* j! L' A
- #define E2PROM_CMD_WRITE 2
0 G% z' P; [: z! R - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"* [/ g) e. D" w( C& {$ a1 N
- ' s& m: T; t" k% n
- static int readparam(unsigned char *mac, unsigned char *stbid)6 i7 G- q5 s/ n4 I7 g1 q
- {5 P& F. r1 {* z- P
- int fd, ret;' N: W7 [( r0 T1 M9 Y5 ^9 L
- e2prom_s_cmd arg;- k& t: L1 x' ]4 r$ l
- unsigned char buf[0x18];3 H) M8 G5 X; W1 C3 Z
- ) d& w9 i% _: j1 {1 `$ t
- fd = open(E2PROM_DEVICE, O_RDWR);
/ G( R" i5 P. S3 I% Z: Z - if (fd < 0) {
8 v$ A5 z; H# C - printf("Device %s open error.\n", E2PROM_DEVICE);
1 a" A# X* k) K: H( P, g! I& B - return -1;
; Q) q0 m! f; e. a! v' _; `$ l0 x" f! Q N - }
/ t( t7 ]. T6 { U - arg.sub_addr_count = 2;
6 p& w. `/ k( P% K0 h4 `2 Z0 J4 @9 { - arg.data_count = 0x18;
4 o# V! a4 O, f1 O - arg.e2prom_cmd_sub_addr = 0x290;
/ i$ x4 ^% k2 K/ q* m% n2 ^ - arg.e2prom_cmd_data = buf;
, O- N; j: w) ?! h% f - ret = ioctl(fd, E2PROM_CMD_READ, &arg);( r6 W, J9 Z0 q5 d, O5 p' J
- if (ret != 0) {$ K* y: l0 |5 N/ F5 z+ R$ ]- u. x
- printf("Device %s read error.\n", E2PROM_DEVICE);
8 z# r% L) d' F; u4 K4 W5 y - return -1;
; }( B& y' H2 L - }2 Q! q' E* z# U @+ i
- memcpy(mac, buf, 6);
" g) r/ }5 M- g$ w. b - memcpy(stbid, &buf[6], 18);
: s. B9 X# G$ x" x- j8 t2 k - stbid[18] = '\0';
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, U$ J6 H- ~0 r4 y- return 0;0 d% u/ v( @. k
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- 6 m; I) ^+ K. M8 d2 v! q* l
- static int writeparam(unsigned char *mac, unsigned char *stbid)3 r: p" v; W( H- d, ]
- {9 a" Q% v2 G( N9 G
- int fd, ret;
/ o% H/ G6 ?5 b& ^* D- v+ J) x - e2prom_s_cmd arg;) C7 W+ k: l' X6 [8 { V$ j; V
- unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
& \+ ^' P7 i! E) ?. C1 C7 O) \ - memcpy(&buf[6], stbid, 18);& x! G& J T! X4 Q5 I% b# b+ G& ^2 ^. A
- fd = open(E2PROM_DEVICE, O_RDWR); e1 ?1 t( O/ l& x
- if (fd < 0) {5 x/ ]) K/ J' B! x4 r
- printf("Device %s open error.\n", E2PROM_DEVICE);: T/ Z9 i. E7 U t2 _/ ~
- return -1;7 c1 i$ s. M" a$ u! {6 \$ A
- }
6 e" z3 }* c- v$ _* {- i - arg.sub_addr_count = 2;
- V( S, T% I1 w3 d - arg.data_count = 0x18;
4 z2 z+ I8 |* p! S* `2 w - arg.e2prom_cmd_sub_addr = 0x290;
( h6 j9 R: |( a, m. ]& t" D9 X - arg.e2prom_cmd_data = buf;& W, R: W0 O$ |8 [% e1 l7 e/ f* J
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);5 p2 |. k) j0 z
- if (ret != 0) {
6 n, v! ]! D H7 f$ a - printf("Device %s write error.\n", E2PROM_DEVICE);2 S+ }% m* p6 Q. U+ h. r
- return -1;
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( R2 o; ]* i4 q7 T/ ]- return 0;
! g- `6 s) G: ?( D - }
6 b; {* W4 H+ c! E% r2 F - + B* S' I4 m" o {
- int main()
+ U$ r* p9 ^6 ~" B# [2 u - {
8 h9 M5 s( A g5 x" w! x8 V+ J+ B - char c;
+ @0 d( Y5 l6 p! }, a& _! h - int i, macs[6];5 q! h0 W, k+ [+ W
- unsigned char mac[6];$ Y/ _# d; E! k$ t; n4 }; ?
- unsigned char stbid[256];1 s0 R: X4 d. J& b$ a" r F1 o
* N: _# C7 M( p: a' D* [1 {. C: I- if (readparam(mac, stbid) < 0) H1 F! j0 d. P& K6 v5 H
- return 1;
5 P9 K! \: }+ {
; R) Q# Y) d. _- printf("Current parameters: \n");0 [( A2 c/ `$ G0 [/ ]& R5 K- s
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);, R- q+ H& k5 Q0 o4 A3 _) o1 s# x
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");. ]6 M% ^+ t% U! H( R3 D
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {, w; n" A' o- N( W5 f( Q7 @9 K
- printf("Input MAC error\n");' l+ A. l% A8 `( v; v
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];! N) ~' t' f; p( e t
- printf("\nPlease input new STBID: ");
& b0 O1 G4 \9 z' _2 V! d: s1 j - scanf("%s", stbid);
( n3 _6 d" }- ?6 e6 ^0 B$ J - if (strlen(stbid) != 18) {% |0 e S T( f6 {2 i
- printf("Invalid stbid\n");" E2 _* M9 X: n8 E2 b- b( h5 f/ h& }
- return 1;
3 I8 F$ V- O! A3 r) L9 h; K/ b( u - }7 `: _3 G) o6 n5 ~) z& F
- printf("\nNew parameters: \n");
0 @4 D$ c# E+ A( S; c5 ?" a - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
, K% i2 Q% r" K - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");2 E- S! n0 M, z8 ^8 [: `; Y2 D% {
- for (;;) {
7 g8 ?$ s* z, j, F4 R - c = getchar();0 Q" g# P* B2 E8 C
- if (c == 'y' || c == 'Y')
1 H. J+ l) I6 s! `% C - break;
3 d! E6 |5 ]& V3 u$ s - if (c == 'n' || c == 'N') {
' u5 C v- X9 B$ n# w; N - printf("\nAborted.\n");
: u5 |* h3 B# u0 K6 d6 d - return 1;: u% x- o: U: L8 j. B
- }, g7 o9 O0 i+ S- @( Y% Y
- }8 H C" b G7 H' z
- if (writeparam(mac, stbid) == 0) , V- [& |# G8 l" Y1 T
- printf("Parameters changed.\n");
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# O3 p* @9 c# ]" X6 ~+ ?% O1 z- return 0;/ B. h' F( x3 X
- }
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