本帖最后由 0522 于 2012-3-21 23:04 编辑
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3 o+ l$ Q, X- P9 F- Y修改的代码早有了。到今天不会编译。
7 W$ p# {0 D" }9 b3 q需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>( Z+ {& w: E2 N1 X
- #include <malloc.h>! _, |( `1 a% c
- #include <sys/types.h>
2 s8 Z, E9 e! v( I - #include <sys/stat.h>
2 Z5 ^# [8 A; _4 d' W. n9 j, e5 z: A - #include <sys/ioctl.h>! k6 T; D1 w5 ^( m
- #include <stdio.h>: @- q1 ]$ O" `" D8 x
- #include <string.h>
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- typedef struct {
2 U V1 z3 P: b" p5 {2 Q$ @9 b - unsigned int e2prom_cmd_sub_addr;
5 Z4 x: d1 u( {7 r& Y4 g - unsigned int sub_addr_count;, M: {& c1 w- n2 P2 i* `
- unsigned char* e2prom_cmd_data;
6 B$ S Q6 c- w$ S* C - unsigned int data_count;
. t% |: p5 G/ \! d& i( A - } e2prom_s_cmd;: ]) r: D1 l. O. J7 I3 d
- 6 ?: \& [& e; p. z6 v' ?: ~& R
- #define E2PROM_CMD_READ 1# x6 T; Q& D& s7 E) H( _& [5 r
- #define E2PROM_CMD_WRITE 2
2 k3 n7 c, @! u8 U0 J6 N, V - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"1 i# t7 r) S$ c
- 7 u! h0 ?2 V1 _
- static int readparam(unsigned char *mac, unsigned char *stbid)
$ Z7 x v! R8 A' ?# p7 T% o) l - {2 {& s* |0 A* G1 _- ]# C& U
- int fd, ret;7 k4 Y7 _0 A( G) ]7 J" }4 t
- e2prom_s_cmd arg;
$ R5 q. D( Q/ }% D$ C - unsigned char buf[0x18];
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4 u" ^- @9 S6 M- fd = open(E2PROM_DEVICE, O_RDWR);
- [" k& i, a3 E; _ - if (fd < 0) {
. S+ m9 s2 C6 X) C - printf("Device %s open error.\n", E2PROM_DEVICE);
* D& b" q7 W; A. x( \4 D4 E - return -1;
' e" x1 W) W# L5 f: @! E2 t - }
: {& I' D( l$ x4 d: s - arg.sub_addr_count = 2;: h- }$ w+ H/ _
- arg.data_count = 0x18;9 G W# p# Q2 c
- arg.e2prom_cmd_sub_addr = 0x290;
1 r4 u. R3 z( R( ~. C: p' J4 h5 O - arg.e2prom_cmd_data = buf;# c9 ]6 X) `. o, C3 r+ F
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
}. |7 H$ x/ F& S1 x S - if (ret != 0) {: U v/ d' @* l* [2 s: R2 ]+ `8 `" Z
- printf("Device %s read error.\n", E2PROM_DEVICE);
" a0 s7 L$ P6 |8 A, H/ k - return -1;
9 f+ O# T- R0 w+ z& e - }
* X; F% x) W* M8 p r: ^' ?* S+ c0 K - memcpy(mac, buf, 6);) z n+ j4 e8 I& Z. N5 K6 B
- memcpy(stbid, &buf[6], 18);
/ B& |5 i" X; R# | - stbid[18] = '\0';
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- return 0;
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- 3 D7 M7 h% E" i
- static int writeparam(unsigned char *mac, unsigned char *stbid)3 g: H, `8 W& C- O+ W
- {. {5 T9 h' e% |" `7 [( R
- int fd, ret;
' M& i$ I# v2 c* W; P1 [/ L - e2prom_s_cmd arg;3 G4 R% t" S$ x& Y6 U: a+ M% @
- unsigned char buf[0x18];
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$ }; Y& a% x6 j- memcpy(buf, mac, 6);4 G' C9 W. E& N0 i6 @ s7 q
- memcpy(&buf[6], stbid, 18);
; C- f/ X9 s6 L& [3 {5 `4 L* d2 K* d - fd = open(E2PROM_DEVICE, O_RDWR);- {$ E$ N; |$ B1 S
- if (fd < 0) {
7 W0 Y7 i8 I5 T6 X; \ - printf("Device %s open error.\n", E2PROM_DEVICE);
2 F4 O# o4 D! I - return -1;" d# ]% e, d" h$ w
- }1 P' l& V* j2 l' m1 U: `
- arg.sub_addr_count = 2;
; F; G7 ^3 q% S8 b% H - arg.data_count = 0x18;0 H$ i7 Q- j( R1 T" [7 ?) x# F+ }1 w
- arg.e2prom_cmd_sub_addr = 0x290;
& W/ [9 ]5 _) _& n0 Y% } - arg.e2prom_cmd_data = buf;
6 e$ e: W6 S' {9 ]$ Z0 S - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);; _3 @. o$ S. W+ A$ n
- if (ret != 0) {1 t" \+ s5 E( r) f
- printf("Device %s write error.\n", E2PROM_DEVICE);
+ b7 G4 s3 F( |7 f* h- u - return -1;
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- 0 m R# r+ _; S
- return 0;. t; n5 h9 G9 z+ D+ H+ j$ j$ s
- } Z+ J7 U1 U+ A* i" C
- - I; H6 e% W u8 q0 v6 \
- int main()
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- char c;% g& c! F0 }# \+ j& ^
- int i, macs[6];# M6 N8 k+ p; j7 \) p
- unsigned char mac[6];7 z+ t. t& V3 d, Z& u8 d3 E( y1 c
- unsigned char stbid[256];% n. @6 n' E( z8 ^
7 k4 q1 j, s/ v# S- if (readparam(mac, stbid) < 0)
. j: e2 f* ]" v, u$ N - return 1;
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8 `# v. Y8 `3 z' s7 O* Z- printf("Current parameters: \n");
! x* o( W0 G! W; n, d& n3 J) U - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);. R) m2 X w. G2 b
- printf(" STBID: %s\n", stbid);2 D# Z, Q9 ~! Q0 ?2 H
-
$ L; F d( k; G) v - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
) K+ J: Y: G s - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {9 F% O- A/ o6 d6 d
- printf("Input MAC error\n");" o' J4 d- l7 }5 ^" x6 F4 y
- return 1;; q. r; F0 }/ |6 z5 g* ]
- }: v2 f9 F. G0 {3 U8 y% y
- for (i=0; i<6; i++)mac[i] = macs[i];
3 l5 Q3 ^7 A5 }7 M+ v# j6 K* ` - printf("\nPlease input new STBID: ");: |. r! P8 F) Y% Q
- scanf("%s", stbid);
, s8 N& `2 O) Q9 y/ e9 g" r8 v - if (strlen(stbid) != 18) {
0 O; q) `: k+ c( r - printf("Invalid stbid\n");. |! d7 I: N! \& g0 Y
- return 1;
! W) c4 x8 w& M0 |1 K. t - }
7 N% H5 u- X# J4 e0 d - printf("\nNew parameters: \n");9 \ h( K5 w O" x$ c- ]
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);4 T D5 e5 L6 r7 \7 \" e
- printf(" STBID: %s\n", stbid);* a" \$ a1 T* t6 b9 s9 r3 U7 Q
1 q6 I7 q) d% B, r+ ?- printf("\nDo you want to change paramemters? (y/N) ");7 Q" @% Z. `- s" l9 i8 b
- for (;;) {! U7 `" j! Q& g8 o: J7 G
- c = getchar();
+ P8 X. p( c/ S8 }' z2 J. H - if (c == 'y' || c == 'Y')
' V1 g, j( S* ^ h" K% \ - break;
' |* z! J4 V( m4 c4 W4 ~ - if (c == 'n' || c == 'N') {
4 U$ v C2 H% D - printf("\nAborted.\n");3 _3 _5 M# x0 L( E+ i( b8 U
- return 1;! L. B. N/ { M7 J
- }
0 g9 W! ?$ Z+ R* F - }
0 X" G6 U) x- X7 G B - if (writeparam(mac, stbid) == 0) ; \+ q. M3 b$ x' L" O" n" d
- printf("Parameters changed.\n");* j2 i( j; C* G, g
- 6 u, L1 R' M; `) ^# L6 P7 k1 m1 \
- return 0;9 i9 K: d$ n! j
- }
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