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。
+ w& }+ R' \( ^, C/ k- S需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>0 H9 {' a. G9 Z# b r4 c
- #include <malloc.h>
! |5 h8 P9 |. N% `7 M' b+ @" N - #include <sys/types.h>
& L5 @/ ?- v% N, j! o/ | - #include <sys/stat.h>" v" M/ ~3 p& \! s
- #include <sys/ioctl.h>
9 ]+ F& H) B$ b, F - #include <stdio.h>
% Z' l6 a# [5 Y+ m+ q* K, P/ v - #include <string.h> Z- C2 r }* b
; `, t; v3 [! m( x- typedef struct {
$ U, H2 C O8 I4 [6 S6 A' s - unsigned int e2prom_cmd_sub_addr;) k; A9 O5 O' m$ u9 d
- unsigned int sub_addr_count;
$ r4 W/ G B5 g - unsigned char* e2prom_cmd_data;1 F3 c9 k& h9 j0 w
- unsigned int data_count;
. L! A3 e3 ?1 d ~ - } e2prom_s_cmd;1 [; q$ G0 Y) K+ a$ n' s
9 B u: C$ M8 W2 A( v9 C, h$ J- #define E2PROM_CMD_READ 1
9 s- `) Z8 N5 F2 r; v - #define E2PROM_CMD_WRITE 2' u2 l5 a& B# O+ u. r
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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! U8 V3 U4 f, H8 b7 {2 V6 J; e7 |- static int readparam(unsigned char *mac, unsigned char *stbid)
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: }, z4 K6 S) E8 Q3 H - int fd, ret;, S# d( x9 ~$ [" n& k1 h4 P
- e2prom_s_cmd arg;. Y, k+ ~. |8 f- e7 k+ i
- unsigned char buf[0x18];4 u; s: ?/ I) J( X/ u8 o7 K( }
! x! P! N& y! ]0 r9 j6 r n- fd = open(E2PROM_DEVICE, O_RDWR);
: V/ P* y) T4 }% Q' M( v - if (fd < 0) {! i \3 H. o' H* L* m/ e' g/ ~. |
- printf("Device %s open error.\n", E2PROM_DEVICE);7 ]% _7 C. }3 p5 Z8 q4 A5 H+ J
- return -1; c5 q0 m9 C _" M
- }
- g( p, \6 h' Y/ `4 L# e - arg.sub_addr_count = 2;9 x% T9 G0 S# j; J d/ h
- arg.data_count = 0x18;
/ e% G+ Y3 l% y/ S6 K - arg.e2prom_cmd_sub_addr = 0x290; f5 s" s, }3 _3 D) ^
- arg.e2prom_cmd_data = buf;" f/ c- n5 @' M5 O7 e# a
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);3 X. F/ E8 |1 ~0 g6 f6 }
- if (ret != 0) {, \, G. @/ }2 O$ m" d/ I |/ ^
- printf("Device %s read error.\n", E2PROM_DEVICE);. d2 o& G8 ]% w) r5 e- j
- return -1;& z% C. C; |6 [, @* q' g; ~% O/ g
- }
7 v0 g, n: [* k$ E9 Z ^ } - memcpy(mac, buf, 6);# `& u" A0 o! V8 w4 A4 C
- memcpy(stbid, &buf[6], 18);" x/ M2 v& N" x: i; m6 [
- stbid[18] = '\0';
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4 P" d( e d7 h' n6 {- return 0;
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) K" x6 C! S8 X5 n2 j+ Z6 h& H- static int writeparam(unsigned char *mac, unsigned char *stbid)
9 S; a" B; O5 `9 J2 `% f - {
2 i( Y! l" r/ J$ s, L$ b, I" r - int fd, ret;. y" S6 Z$ P6 J: p7 R0 ~
- e2prom_s_cmd arg;
# S9 Y @- o" `1 h2 G8 P* l) R! u4 ]$ o - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);
& i1 r) c3 Q# |" ~% i) O - memcpy(&buf[6], stbid, 18);0 G& n P: `5 e( v+ p5 X/ g) h
- fd = open(E2PROM_DEVICE, O_RDWR);7 {6 z2 r8 g' z1 m" B
- if (fd < 0) {/ v" W) c) }; x: k
- printf("Device %s open error.\n", E2PROM_DEVICE);
@3 W, A2 C6 g' ^ - return -1;
' P5 U2 i4 I& x - }
* h+ y f3 t" ?' f, G4 [ - arg.sub_addr_count = 2;( j9 [' X9 f( o. g( L$ C+ |5 @
- arg.data_count = 0x18;
% F9 }* A7 h( ^) Q* }& P" m - arg.e2prom_cmd_sub_addr = 0x290;
$ Q" G! `9 f2 N0 v$ e7 C% _3 V. s - arg.e2prom_cmd_data = buf;/ ~7 I9 K: G* l3 x% } [' c
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);9 b x$ m- M0 ^' \$ e r
- if (ret != 0) {0 S# ^. ]0 M) W+ V. U- a+ P+ t0 L
- printf("Device %s write error.\n", E2PROM_DEVICE);8 X8 [& O/ Y( l; u) S
- return -1;$ X" ?! j# s8 U) V O
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# f8 @, e/ s7 ]# L- V0 j- return 0;! w+ q( f# A3 R: Q3 i
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- int main()
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" R: ]" Z, t- F( }+ Y2 R+ W: j& { - char c;# |5 R3 h8 @/ d& a, n
- int i, macs[6];
' X, }6 M& O" |: t& t% @9 ? - unsigned char mac[6];
9 E7 |4 u0 B# U1 e- v5 y% Y - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)+ T# X& ~8 {7 A$ d( C
- return 1;
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& Y: |0 x+ d5 P+ V5 Y0 b5 ]* c* Z. f- printf("Current parameters: \n");2 D$ o) @* M5 ]
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);) ?6 l9 c# `+ r# d
- printf(" STBID: %s\n", stbid);9 T& k8 i) h: O) U% g/ {$ k" T
-
1 ~5 G, w$ f% z( K: O6 l7 i; W - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
9 G2 I. V4 @7 ?& H9 N - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {( [, }* y: s3 h/ n, s
- printf("Input MAC error\n");, E# S/ k- n, L
- return 1;' Y8 N- w' P- k1 p e4 o! E
- }( Q; W" z" R; |
- for (i=0; i<6; i++)mac[i] = macs[i];
' ]8 e: k6 [; }6 ]- } - printf("\nPlease input new STBID: ");6 R# J: w+ N L- \
- scanf("%s", stbid);
% @5 A% Q* k( h4 y0 {1 q2 `+ D6 ]5 @ - if (strlen(stbid) != 18) {8 ?& Y" k# Z6 A3 `; u
- printf("Invalid stbid\n");
& S0 V* I( d4 ?& z" h& B - return 1;1 N# |2 T" F: [$ P
- }- M/ D/ O2 y! R i
- printf("\nNew parameters: \n");
# y" T' `4 g7 d. z) Z - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+ F; z3 D D6 k - printf(" STBID: %s\n", stbid);9 b( T! W1 W0 a4 ?. D: V# K
- 1 L* x y) Y! m5 Q$ Q
- printf("\nDo you want to change paramemters? (y/N) ");
+ W( p/ [, U! t9 R: e - for (;;) {
6 E2 l) h7 j4 Z2 m# J - c = getchar();
' u( q2 \( h K: k$ Z4 y, ~# O' Z8 f: [ - if (c == 'y' || c == 'Y')
5 J( _5 s' H/ n$ R& G& M - break;9 [% r6 q. [8 W# P z
- if (c == 'n' || c == 'N') {5 \4 l9 R% w8 N
- printf("\nAborted.\n");. |3 U2 ]% W' J: s/ J8 a2 ]
- return 1;8 u! I2 h: ^: ?% @
- }
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- if (writeparam(mac, stbid) == 0)
3 R8 j( M5 E- a1 u - printf("Parameters changed.\n");, ?2 x% ]( R5 K# }8 c: W* U- G- M1 F
8 \$ X) E3 ]- I9 j- return 0;& d9 {/ f6 c( J: ^2 N
- }
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