本帖最后由 0522 于 2012-3-21 23:04 编辑 : Q; E& c2 ?" W
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修改的代码早有了。到今天不会编译。
& O) t4 Y/ }' Y( m6 p& a需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
/ X/ c: P- i% D) c - #include <malloc.h>
& p& L, X: ]" A5 a' v7 s0 @ - #include <sys/types.h>
, D' E1 C5 z$ q; C - #include <sys/stat.h>
3 ?1 d4 _6 o" P; Y2 ], p H6 Y# `0 H" ` - #include <sys/ioctl.h>* _3 V V8 ^2 o M1 M
- #include <stdio.h>
1 L# V' N9 a$ M0 I - #include <string.h>* E' [& {" p$ D7 l; W" H
- 9 j+ w( f' d8 ~
- typedef struct {- i8 F8 N7 u1 F
- unsigned int e2prom_cmd_sub_addr;/ i+ J3 J4 \1 w6 N: _: g7 N
- unsigned int sub_addr_count;
+ ]' @6 A( S2 m6 g - unsigned char* e2prom_cmd_data;" {/ g3 z6 Y: B9 I
- unsigned int data_count;8 ^5 J" M4 r+ |, z5 I% I5 k b1 D
- } e2prom_s_cmd;
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1 x$ n6 A. d) ^1 j, E$ A" [- #define E2PROM_CMD_READ 1
# @; U/ @2 _. J& z, x - #define E2PROM_CMD_WRITE 29 V q$ o& d/ V" c: {" g
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid), }2 b } M( w6 N5 P9 U( N2 b
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- int fd, ret;
- g3 Q% v+ @! c- u" ~" I. \4 I - e2prom_s_cmd arg;' z7 H; [& C$ e" e
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
. K( i# t! c2 Z - if (fd < 0) {
7 v& X: W1 K$ T* q- O/ R7 Z - printf("Device %s open error.\n", E2PROM_DEVICE);
g& j: p6 |, P& w' A - return -1;
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- arg.sub_addr_count = 2;
" L1 y( ]$ R( B# h5 }5 q+ ^3 x - arg.data_count = 0x18;+ E8 z) w0 N' ~
- arg.e2prom_cmd_sub_addr = 0x290;7 @! ^( A4 n2 v
- arg.e2prom_cmd_data = buf;) j+ A. ]! w3 r- }, V
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);4 M6 r" e" S W) O8 z* {# ~
- if (ret != 0) {% N7 W- g* S! Y& n
- printf("Device %s read error.\n", E2PROM_DEVICE);6 b" E6 p; X1 Z. l
- return -1;2 h+ Z+ M; v8 O
- }2 u9 u! X8 P5 p2 o
- memcpy(mac, buf, 6); g$ |, g8 T/ G8 d2 o, ^
- memcpy(stbid, &buf[6], 18);
4 @/ O S, }% O# x! E - stbid[18] = '\0';% W' `0 l1 t% N4 K" L
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- return 0;
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) H. W" X( g: T9 l& P) v- static int writeparam(unsigned char *mac, unsigned char *stbid)1 C) u P4 h3 l9 {
- {
. s, K8 s5 m. T - int fd, ret;
8 O; o$ l1 O' d. P. q8 r) A - e2prom_s_cmd arg;( g, N2 U5 y3 V# A2 u
- unsigned char buf[0x18];! P0 m- H0 n" ~: G9 L6 w
- 9 G( u" x8 N- x+ g% i
- memcpy(buf, mac, 6);% i F+ a' h# b9 K6 d0 n
- memcpy(&buf[6], stbid, 18); ?2 \% r# a0 g: p
- fd = open(E2PROM_DEVICE, O_RDWR);; d/ i+ m& y0 h2 \6 q6 Y
- if (fd < 0) {4 h5 ^7 c* d+ w: s/ w# ~6 b5 w
- printf("Device %s open error.\n", E2PROM_DEVICE);
! A( t6 L+ p+ [/ V' D) h( \0 f - return -1;3 L2 e# e0 n2 b( x0 C
- }8 Q8 K# N) z8 x4 _3 c
- arg.sub_addr_count = 2;4 b1 e. v3 i9 [+ v
- arg.data_count = 0x18;/ L* e/ I8 L* Z% S% |. W6 e
- arg.e2prom_cmd_sub_addr = 0x290;
' v/ C8 [( N" P( L F - arg.e2prom_cmd_data = buf;6 ^+ \, \4 G8 v! S7 P4 D, c R
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
' J5 z+ u! P+ S" O% J5 a y - if (ret != 0) {
. R3 Q9 U- R2 O. Q- ~0 D - printf("Device %s write error.\n", E2PROM_DEVICE);7 A; g) T" ]; f0 O* z2 s
- return -1;# Y# N: h1 c+ Y7 h2 X
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- return 0;0 [7 ] ?0 j- K% y5 W7 U5 `
- }
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- r+ x$ O' `7 ^/ v( m- int main()2 s6 ?3 ~4 i1 p# j/ m( a
- {0 }1 s! U* g+ j. [+ \# s
- char c;$ Q3 g) M2 I# O" B% o
- int i, macs[6];: f8 n8 G3 w, f) I1 s( q. U: G
- unsigned char mac[6];
+ \+ y) w- p( ]$ j7 F/ B$ r; _ - unsigned char stbid[256];
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) M: H0 l2 g# \" w' s% P/ _8 X- if (readparam(mac, stbid) < 0)
3 O! E$ l( R$ {* O. B) P - return 1; q% `1 G, F1 [( a6 h* A. ^
' `1 n( p3 F2 s8 f3 v- printf("Current parameters: \n");# x* @2 @! u3 A4 i7 V. o/ x% K A% g
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);: B/ k! Q& ^) O
- printf(" STBID: %s\n", stbid);4 X4 g" n$ U& R* }
- P+ m# C4 ^' Q$ W5 {1 f3 {9 p! G
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
j: w. z Z a& z+ P - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
+ ~* {/ T0 r/ S3 w% N. @& R8 o2 \) ~ - printf("Input MAC error\n");9 D8 u( D' D, b1 ~$ D
- return 1;4 ^! q2 B# e( X0 M
- }
8 L5 q" j* W* l- S5 | - for (i=0; i<6; i++)mac[i] = macs[i];% f8 @; Q; c9 u+ V
- printf("\nPlease input new STBID: ");% ], u3 c; p4 O o% ?* Z% u; I: t6 L
- scanf("%s", stbid);# Y7 W0 J8 E# d- ~9 i& e
- if (strlen(stbid) != 18) {9 D8 s5 g6 l) a6 d! I- i
- printf("Invalid stbid\n");9 i0 I0 J" v) ]0 v4 d K. U; n
- return 1;
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3 h" }1 S2 Z3 t - printf("\nNew parameters: \n");
6 Q/ ]0 |* N# G( R# p' B6 S& u - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
" ?8 [7 d8 e4 e8 d |+ f - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
6 R: l- ^- v, f0 { f! `8 m$ { - for (;;) {, ]4 D! H" j( {' O* o9 U; q, q
- c = getchar();
" Y4 B& J8 f$ J( a! o - if (c == 'y' || c == 'Y')
1 f1 s4 M2 d" N: D6 d. j - break;0 }* U# z: p% s `" r3 T$ O7 v, Z" ^
- if (c == 'n' || c == 'N') {2 {) ]; T) X: e5 e' d; u6 S) r0 L
- printf("\nAborted.\n");
, |" V# }1 ~ \ n( k - return 1;. h7 Q1 U! x% C3 g( F9 @7 |
- }
! E D6 Y. B! Q& i9 T - }
/ |( j8 O! }# z: T: g7 {; R: S' B$ p - if (writeparam(mac, stbid) == 0)
- T, } X. r/ V7 a9 { - printf("Parameters changed.\n");
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- return 0;
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复制代码 |