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。- v# ~. Z: y* E& L6 _ C+ m9 @
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>! E& R: ]) T" A
- #include <malloc.h>8 k& z8 ^0 b2 m, w5 `8 E( O
- #include <sys/types.h>3 ~& L$ U+ d' T
- #include <sys/stat.h>
' A. Z: u9 O* U* V9 \ - #include <sys/ioctl.h>8 D2 g b _) {
- #include <stdio.h>. U7 }) l% F1 ^9 T+ W
- #include <string.h>" \ z3 e/ _7 |5 u
- ! ]& v6 v P3 _+ U! {% i! [; j
- typedef struct {9 V+ g6 o4 @2 r
- unsigned int e2prom_cmd_sub_addr;! q& u- E9 [- l/ E
- unsigned int sub_addr_count;& ^0 K+ R }8 }* e
- unsigned char* e2prom_cmd_data;, _, h8 Q& F2 n. _: M! p) l& \
- unsigned int data_count;
; S+ q; p2 g1 C - } e2prom_s_cmd;* K" q* x9 O0 N a4 D8 D
- # v* q, ?$ W+ c1 y3 k" e; N
- #define E2PROM_CMD_READ 13 h7 {3 D0 e2 r6 {% p
- #define E2PROM_CMD_WRITE 2
$ a. l0 J/ m/ e; Q, A0 e3 Y - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"5 Y! t }$ X* Y" r
k$ T$ e) _1 w- static int readparam(unsigned char *mac, unsigned char *stbid)
8 `, m; B( W: Z - {
0 {+ a; [: C0 B$ _: u0 d - int fd, ret;* V. ]( h/ T* q% Q. E7 h" B
- e2prom_s_cmd arg;
5 v- }9 o+ L+ Y8 Q6 }( J3 z - unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);. E# G: Y" }- T" G/ k7 i' k
- if (fd < 0) {/ G* g1 z8 U; [3 O, @* O7 z
- printf("Device %s open error.\n", E2PROM_DEVICE);
L% o+ A9 Y e% N. d p! F - return -1;
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- arg.sub_addr_count = 2;# T$ D. t' u* B5 {! m, X) X4 E
- arg.data_count = 0x18;
* B4 z+ ]: n. m" Y - arg.e2prom_cmd_sub_addr = 0x290;7 V& |8 }6 [- r
- arg.e2prom_cmd_data = buf;0 V, F5 e* z$ X$ M
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
) ?6 u" k7 J# b/ y9 z - if (ret != 0) {, S/ r$ }: k- W; |6 \
- printf("Device %s read error.\n", E2PROM_DEVICE);
$ P! Q0 C7 c6 C8 U - return -1;
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- memcpy(mac, buf, 6);
5 s! ^* V8 y- i0 u b - memcpy(stbid, &buf[6], 18);
$ g" M; S8 z% G3 ^5 m - stbid[18] = '\0';5 E" q2 {) S, V% E3 U
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- return 0;
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) D# P$ @4 Q5 H- static int writeparam(unsigned char *mac, unsigned char *stbid) I# _+ p$ Y8 I4 O/ O E* Y
- {
& a' P! j/ U" h* X, v - int fd, ret; _" `9 u' C6 n% O+ R, z- U: z9 K. g
- e2prom_s_cmd arg;
, [4 e- d4 M, e+ K- k2 i! Z9 k' D( t - unsigned char buf[0x18];+ I% X: F+ T3 {/ M$ P4 K/ F
- 8 j) |0 B% x- E' m$ E" B/ s* O7 _
- memcpy(buf, mac, 6);' u& j0 N$ Q/ s$ e; m6 {0 S
- memcpy(&buf[6], stbid, 18);, i* |' H! h2 T6 ~# H1 _. N: Y% P7 F
- fd = open(E2PROM_DEVICE, O_RDWR);" w* o5 B0 F# \4 w- G, h
- if (fd < 0) {
4 j4 X- ` {! [) w# I - printf("Device %s open error.\n", E2PROM_DEVICE);, Y* m5 C4 i2 k1 r" Z
- return -1;
4 p+ t J w/ o. p9 A7 F - }
" B+ [& A: u- Q! C6 \4 \, a - arg.sub_addr_count = 2;# b1 u9 J( |9 m P
- arg.data_count = 0x18;0 c8 g$ m; V2 }1 t R
- arg.e2prom_cmd_sub_addr = 0x290;# M- s/ P/ f& w* e" a/ }5 t C
- arg.e2prom_cmd_data = buf;
! ~4 y9 a$ h; T - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
, w" O3 m8 k! p+ i; ] P - if (ret != 0) {. G: ~1 N8 [: k" s$ {, }5 z; m& r
- printf("Device %s write error.\n", E2PROM_DEVICE);* R- { R6 v1 q; x5 L1 o
- return -1;- f- J# Q, J. i2 |
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- ( v( L. Q. C% X, e4 D \
- return 0;6 h% d0 \& l1 E
- }
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- int main()- e# b: g/ Q( Z# _/ w
- {6 C- v" ]$ W& h+ d2 a. |8 c
- char c;
( f% B Q( y! _; N - int i, macs[6];, A: }( a! G4 M! `0 D' f
- unsigned char mac[6];# [5 B3 ~' `1 k" l* `
- unsigned char stbid[256];
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2 i- b' D# m1 S. S$ G0 Z9 m: t- if (readparam(mac, stbid) < 0)
" t# X: D- i; I6 i2 n! C; F: ~ - return 1;- i \3 f- j+ n' a& G
- , Y# X2 V8 d# q5 r
- printf("Current parameters: \n");7 f4 B1 }' s Z3 e9 ~
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
/ a/ u9 U. n) \0 N - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");4 K2 b: r! W8 }$ U, V# n
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
# A" V2 g( w1 E% E - printf("Input MAC error\n");0 T3 ?' G7 `$ v
- return 1;
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9 `! ^) k. `6 _: q1 h. \! o - for (i=0; i<6; i++)mac[i] = macs[i];! v2 T# f) {# e. Z. `; b
- printf("\nPlease input new STBID: ");
& @0 R; R# D: n! B - scanf("%s", stbid);9 `0 D4 f4 ~9 S! B5 D) Y
- if (strlen(stbid) != 18) {$ D( @9 X* }. K& |
- printf("Invalid stbid\n");
- d. g) p7 c7 w/ g - return 1;
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3 q$ x) U( o2 |% j# j - printf("\nNew parameters: \n");6 n1 m" j9 g: Z. A
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
) B. C! g; C) G3 a! @& w- C% Q - printf(" STBID: %s\n", stbid);
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( K3 |) b" h. P# b- printf("\nDo you want to change paramemters? (y/N) ");
& a6 B7 T( R* p) Z - for (;;) {
1 T# B' E0 _, Q, w - c = getchar();
( x1 A$ p0 y! E% |, f" m - if (c == 'y' || c == 'Y')( c3 Q- a B. \ v
- break;# [% ^7 s2 U. h% f
- if (c == 'n' || c == 'N') {
! c2 M. Y1 K" } d/ y9 w. K0 ` - printf("\nAborted.\n");# s, |: o6 N) d& z6 t, ~' o4 t
- return 1;
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- }
& _" L2 a+ v0 U$ q - if (writeparam(mac, stbid) == 0) ' Q6 v& L& f0 q: ^( T
- printf("Parameters changed.\n");% H: t6 H" H; \* O
- o/ U5 U. \9 U% h) a4 B3 N, ^1 {+ \
- return 0;4 p/ {& G" T2 c$ _4 v( I2 i# q
- }
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