本帖最后由 0522 于 2012-3-21 23:04 编辑
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) S* `2 p7 {. \* t1 O修改的代码早有了。到今天不会编译。
" I+ b9 }3 c0 I& t. j# U需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
8 `- J' e' i3 F, m# k - #include <malloc.h>
" m" N' ?! C1 @2 B( s - #include <sys/types.h>" N' x7 _9 g! G% J
- #include <sys/stat.h>: M& z4 Q) [+ Z8 i3 Z6 B
- #include <sys/ioctl.h>
* b. `- E0 S/ @- H: z D; S - #include <stdio.h>
( h [$ X" q$ F7 g& w - #include <string.h>
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5 O# }# i8 R$ I. q7 |- typedef struct {
( `2 Z) c' i. M) ~8 b - unsigned int e2prom_cmd_sub_addr;9 q9 h" o, p6 ^& E- v+ n3 O, p& C
- unsigned int sub_addr_count;2 \# U* X* Z2 k2 I# z
- unsigned char* e2prom_cmd_data;
3 ]8 m% F0 H$ b; n5 @8 | - unsigned int data_count;
& m% y9 N/ T) f5 W4 j0 @1 V - } e2prom_s_cmd;% H, t" u4 g4 y' e
- 3 p" l1 H( U) Q
- #define E2PROM_CMD_READ 1
3 G- v! g/ \: E8 ?9 i( D* c - #define E2PROM_CMD_WRITE 2" r) K2 `0 A! A+ w; ~# _. p
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16" p: v! y% i& X3 u' r4 _
- 9 ]7 n& L* f9 s7 U; o$ E# C/ ]
- static int readparam(unsigned char *mac, unsigned char *stbid)
0 V8 O5 x7 N6 S; E( Z - {
; B4 \8 C) l' a3 k - int fd, ret;
5 h* [# Q; [! T. I2 \# z5 d - e2prom_s_cmd arg;
7 a& t* d" k& x0 [% P; ~( @ - unsigned char buf[0x18];" G6 o- ~( R2 x6 v& E9 ~
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- fd = open(E2PROM_DEVICE, O_RDWR);
" ?8 g; |9 |/ k# `4 g - if (fd < 0) {5 t# G+ B( N0 V* D( W
- printf("Device %s open error.\n", E2PROM_DEVICE);
, \' _5 I; C" O6 Y - return -1;
& Q' q" @$ ^$ [ - }6 }0 r3 }; A1 \
- arg.sub_addr_count = 2; A# n* d: k/ E& [0 F* v
- arg.data_count = 0x18;
& N! U4 m. Y- a6 T; e& \" d - arg.e2prom_cmd_sub_addr = 0x290;
' }5 @9 j. U" B - arg.e2prom_cmd_data = buf;4 M0 W3 L0 \/ Q/ e
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);6 s# b5 V. e9 [7 k! [4 Z' |1 |2 H
- if (ret != 0) {/ _, J; K8 Z6 E2 J3 T! Y* X
- printf("Device %s read error.\n", E2PROM_DEVICE);
- t) k* \! ~2 ?. u - return -1;9 g+ k }: h- K$ N2 ?& n( A
- }
5 |& U# V: O; e; i+ p/ y - memcpy(mac, buf, 6);
- _! B+ Z, a! ^( K - memcpy(stbid, &buf[6], 18);
2 H5 J6 R4 Y9 _' W- q/ } - stbid[18] = '\0';8 D c4 f9 g' X, h1 H6 R
- / r# h8 T% |% ]5 h' G% s( M1 U- G
- return 0;
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8 s4 o4 Q: D& O" E' O) p) Z2 t- static int writeparam(unsigned char *mac, unsigned char *stbid)
$ R* h6 |6 r @2 ?2 ^' o - {) C& L4 Y; }# [* J2 @( b. |0 R
- int fd, ret;0 l1 R1 W$ e X* N
- e2prom_s_cmd arg;
- w% H2 ^; |$ u, w. T6 B. z - unsigned char buf[0x18];
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$ a) \0 ] Y j; S! d* N- memcpy(buf, mac, 6);0 F4 C3 L" X* w3 X0 Y+ m }5 {
- memcpy(&buf[6], stbid, 18);
$ V2 s' t+ R, V* l5 | - fd = open(E2PROM_DEVICE, O_RDWR);
! N( }: f( u: A: C0 _ - if (fd < 0) {9 j6 C. W8 g4 X( V8 C
- printf("Device %s open error.\n", E2PROM_DEVICE);
' y" o/ Q: x* r: s. }3 e$ @# Q% a - return -1;
3 w' i, d; t( _% }* E: B4 R9 c$ B - }
/ j8 V K1 O6 F; ?7 @2 q - arg.sub_addr_count = 2;
/ Z- J7 {1 d) B: `3 s% g - arg.data_count = 0x18;
7 Z& T; C! p) F" b/ L - arg.e2prom_cmd_sub_addr = 0x290;* @' z# h- w5 P( w, c
- arg.e2prom_cmd_data = buf;2 g0 }5 O+ F7 p1 j+ A
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);" j4 A: a t8 ]& E
- if (ret != 0) {- _1 d* l; @: s$ g
- printf("Device %s write error.\n", E2PROM_DEVICE);
8 s$ t( Z* \! c; r - return -1;# O9 j) b$ S4 a6 J5 a4 k2 v" r
- }9 R9 {6 y' ~3 t) _' y+ C8 Q: |
- O$ f9 B4 f( e% S7 c, N4 b$ q
- return 0;& _0 U1 E) ~& E4 B, W
- }$ V0 w# E$ V* w+ z$ q
- X6 U0 Z$ R& j- int main()
$ _4 V" o3 X; B/ D - {- J8 Q9 P# h& n# x! `( h
- char c;
# j7 [7 S8 Q4 j$ n1 W% D - int i, macs[6];+ h p# ?7 ^5 E+ S9 S; ]
- unsigned char mac[6];
- ]$ ?) V; n% w0 t' R - unsigned char stbid[256];* q N) J+ ?6 Z) p6 I# n! k3 Z8 @
- w9 T+ g' F5 R1 X( [- if (readparam(mac, stbid) < 0)
1 A3 b# f2 C6 }6 |8 ?7 T - return 1;2 Y* C" h1 z3 W+ L: r( I( z
- 1 i5 Q; L' y3 C9 @ e
- printf("Current parameters: \n");% J% y9 {9 J! E' t
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);. g; i Q9 S, y' f
- printf(" STBID: %s\n", stbid);4 w1 B G) }( A5 l5 _3 [
-
# c3 |' v) w+ k8 B5 x - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
$ _; S: q/ w' ~2 G7 N7 [/ d - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
Z9 R' _# y: w* g- l* g! y+ l - printf("Input MAC error\n");
0 W% s2 |2 ` D; |- j! m2 G9 z - return 1;
, N7 p$ Z2 j) K! `, o' t* c" O - }
; l9 P" v1 W P! r9 K* d* n - for (i=0; i<6; i++)mac[i] = macs[i];
; V+ w* r# e- {' x# X - printf("\nPlease input new STBID: ");
9 z: U) j3 g2 T3 ^8 M, G/ B2 r5 H - scanf("%s", stbid);
4 w* R3 W2 i+ j7 B# D" r: U3 J& @+ O - if (strlen(stbid) != 18) {
' t2 | i$ x1 s) C - printf("Invalid stbid\n");
6 o/ w- X3 }! Z/ Z9 d3 z* y/ Z - return 1;
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- printf("\nNew parameters: \n");# D* g% N- a. V: `- K. i, ~
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
* k8 R0 Y/ F { - printf(" STBID: %s\n", stbid);: ]1 n, r8 R7 C6 u# e7 E4 L! l
- 6 H1 n' o0 t7 P% t% l# ]
- printf("\nDo you want to change paramemters? (y/N) ");# y2 M0 Q$ b* l6 ?
- for (;;) {
1 |8 k4 [( f8 W/ G - c = getchar();
$ x- J9 u# Y1 _. w6 N9 m1 T1 c - if (c == 'y' || c == 'Y')% Z! S0 q: J7 A$ o
- break;- G* \ w3 a7 ?
- if (c == 'n' || c == 'N') {; o* Q& x: C6 i0 H
- printf("\nAborted.\n");3 H) Z; O( s* d3 q/ E
- return 1;: ~% v0 G) R& c) G1 K$ @6 O/ J8 [
- }* \/ I& z' O6 T3 N' A7 q
- }
+ n+ D) g$ ]: Y9 m3 Z# F" P# ]$ m9 | - if (writeparam(mac, stbid) == 0) + @4 C9 B! \) l2 `$ N
- printf("Parameters changed.\n");. x; l: h% l4 l* N" h% a* e5 Z2 F
" g1 V; k0 H$ y8 A% C. K" H- return 0;
q) z- [8 U6 s) a - }
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