本帖最后由 0522 于 2012-3-21 23:04 编辑 ; P3 Y" O w" ?- B1 r/ s
( t/ g! O$ U3 Q. _) r- ?修改的代码早有了。到今天不会编译。! C' Y7 W4 Z8 P: f4 l& ~3 K4 p3 a0 D
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h># o$ P2 g8 W9 z3 D- ?$ s: \4 f$ W1 V
- #include <malloc.h>
2 ?0 S% R: ~, k8 _: V( D# ] - #include <sys/types.h>
) P: u6 \2 Z; u, ? - #include <sys/stat.h>
! f, d- e, n* v' X8 V1 c - #include <sys/ioctl.h>$ m2 ?0 M/ |4 y' A! B
- #include <stdio.h>
( q' _3 B/ O- e9 K( n - #include <string.h> k8 y& V/ A1 m% o' N0 J
' u2 _7 [/ z3 `: q- typedef struct {
7 D, N [0 p# ^, m& E - unsigned int e2prom_cmd_sub_addr;
' t" W3 c) b( J1 e3 _1 T% x1 j/ ^ - unsigned int sub_addr_count;# _. l+ {1 i. C' s: Z$ R
- unsigned char* e2prom_cmd_data;
) s4 t$ C7 y) ~% v$ I2 W; z' | - unsigned int data_count;9 O* `# c" _. _2 K! G( M
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1& G9 k n! n( I' \1 e4 \
- #define E2PROM_CMD_WRITE 2. N! }) R$ d' t! [2 Y4 T
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
8 ]& Z! J( L8 c - e2prom_s_cmd arg;2 r4 {0 ~' g, g4 u4 h4 P
- unsigned char buf[0x18];
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2 o& L! ~$ a' n$ w% t p: N5 l- fd = open(E2PROM_DEVICE, O_RDWR);0 Q% N" \* ?: `7 I
- if (fd < 0) {' n' P" o' g) [* H$ Y7 N
- printf("Device %s open error.\n", E2PROM_DEVICE);4 g5 S. X- X6 C* M
- return -1;$ f4 W9 q5 X% Z. h9 a& D
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- arg.sub_addr_count = 2;
5 }8 a+ h9 _, z* t6 C/ X% d9 Q5 w - arg.data_count = 0x18;
0 d2 S: {) i) m6 S - arg.e2prom_cmd_sub_addr = 0x290;" [/ F0 ~" z8 N- [
- arg.e2prom_cmd_data = buf;
0 p( o7 f4 m" a( F$ q, u2 Z - ret = ioctl(fd, E2PROM_CMD_READ, &arg);4 U) X( N! K7 W/ d, R/ U! q. I
- if (ret != 0) {3 J9 c x) O' l8 b0 h( k& c
- printf("Device %s read error.\n", E2PROM_DEVICE);
# d* s# N; u2 _; i5 Z - return -1;
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- memcpy(mac, buf, 6);
( r( J4 j5 C# o$ v* S - memcpy(stbid, &buf[6], 18);
# [- y; `, n+ k - stbid[18] = '\0';- H) s* {# t' M# N/ q) @& x* c
; _ d0 t- _/ M# y% ~; t- return 0;
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- $ z. X2 ~' F [' a% p5 o
- static int writeparam(unsigned char *mac, unsigned char *stbid)% Y, E, Q _& e+ n, B
- {1 D% o: D B2 T- a- @
- int fd, ret;
4 {2 |: u. i' l' R, ~ - e2prom_s_cmd arg;+ j8 e; h% D0 `& t' o% M$ h8 J3 T
- unsigned char buf[0x18];# w3 [ W/ q& T: ?3 E( ~
- / e1 p; X% ?2 I+ P; ~) Z* T$ B6 Q
- memcpy(buf, mac, 6);
4 s% s* Z" ^6 X7 W5 [% a4 f - memcpy(&buf[6], stbid, 18);6 x9 V* }/ _ x! {+ x* r, C* e+ y
- fd = open(E2PROM_DEVICE, O_RDWR);7 M1 }8 Y* _5 `, x( E( b
- if (fd < 0) {
- n6 O3 {4 y' P0 F: Q6 j( h - printf("Device %s open error.\n", E2PROM_DEVICE);
6 s9 z" e: x3 Q# M - return -1;0 \( Q1 U3 g$ w* i0 {# s8 b- {% v0 K
- }
1 y1 Q- B8 F, T6 m. ^& M2 q, I* `& ~ - arg.sub_addr_count = 2;
4 L' x& s$ b7 G- } ^ - arg.data_count = 0x18;8 I4 m2 v' |( j, h+ ]* }% B, f
- arg.e2prom_cmd_sub_addr = 0x290;
) }& K7 Z2 O. Q/ \ - arg.e2prom_cmd_data = buf;$ v- N0 h% Y, j
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);2 ?4 b2 @* a6 B0 k
- if (ret != 0) {
" j, O' a% ^5 Q G& t/ I - printf("Device %s write error.\n", E2PROM_DEVICE);" ^' a; l5 s' ]$ h! p6 l8 Y1 x
- return -1;0 j# S" e/ @- E; W
- }
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- return 0;
, {" _. a i0 ^* ?' h6 t" l - }
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- int main()0 e! N( O# [8 Z( u6 ]; p
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- char c;% F5 {* n2 z, A8 ?2 G' @
- int i, macs[6];, O% b7 y" j! y
- unsigned char mac[6]; V o a7 b- t" b5 Z
- unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
+ R* P2 c j e8 ?& w0 ?7 ^ - return 1;6 C4 ]. r4 A/ {8 |- u
- `& g! w' _5 _ J! d! c
- printf("Current parameters: \n");0 h0 q5 V' C" N1 ?$ L( C
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
' n- X( P2 e6 G - printf(" STBID: %s\n", stbid);
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0 Q' _/ O2 g, v1 M" l5 O& I - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");. O4 s+ \/ S8 _% L# S9 C+ v- O
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
" t. Q& J, w5 `& l/ Q - printf("Input MAC error\n");
& E" C+ E8 i. D( m/ w* ~" h) ^ - return 1;4 l) M1 s9 W; e; ^- f4 A
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- for (i=0; i<6; i++)mac[i] = macs[i];8 E. Q" h l8 v" _2 e' x2 y
- printf("\nPlease input new STBID: ");
4 ~. m% P2 {) B2 d: u0 f - scanf("%s", stbid);
6 G$ L3 l/ g2 b3 o - if (strlen(stbid) != 18) {
/ [. i6 u& T& b: G& p, F - printf("Invalid stbid\n");* X* k) t1 N; v7 `
- return 1;! ^2 U/ l# u) X4 j2 e
- }/ c+ p8 u% |5 s% A7 T" n/ n
- printf("\nNew parameters: \n");
, W9 f/ R' P3 ~) C9 \0 i/ \ - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
) z: J! ?8 k1 z1 }; @ - printf(" STBID: %s\n", stbid);
0 V! U) j, `$ c- M - & V. T' w1 l& C; M6 }
- printf("\nDo you want to change paramemters? (y/N) ");4 y2 }6 s7 k7 L3 ]
- for (;;) {
3 Y6 W% M. x% j0 r- h1 }/ H - c = getchar();
$ D0 d$ L# W* e9 k - if (c == 'y' || c == 'Y'): ^6 E2 G& a" P
- break;4 s$ G( ~ F! D& @
- if (c == 'n' || c == 'N') {8 H5 o& F, ^2 M" ~' @" }/ B
- printf("\nAborted.\n");0 ^' m; W$ x/ I- `
- return 1;
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- if (writeparam(mac, stbid) == 0) 1 V& `+ p( G, Q
- printf("Parameters changed.\n");
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; E- R9 l6 s/ m- [% P4 V+ {) I- return 0;8 G6 o9 U' d, u, |0 T
- }
复制代码 |