本帖最后由 0522 于 2012-3-21 23:04 编辑
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& }) @. r, Y" T2 Z' j2 `修改的代码早有了。到今天不会编译。
- |. `9 t- t' A6 i$ S需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>- `* O0 B7 r: m# M/ A) }6 s9 H
- #include <malloc.h>" u3 Y0 I: r; x9 L! Q
- #include <sys/types.h>+ X7 `) @+ K+ ~8 k
- #include <sys/stat.h>: b! _9 o% i4 |) W: p
- #include <sys/ioctl.h>
- I6 N# W* p9 j6 I$ d - #include <stdio.h>1 Q! N" H: S, t
- #include <string.h>
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) ~* p1 Q% K/ N) |$ v$ P- typedef struct {% F# c3 q+ g5 g- x& i b9 B2 p
- unsigned int e2prom_cmd_sub_addr;
7 J! i( ~' Q! Y8 a2 M5 k$ o i$ s; ~ - unsigned int sub_addr_count;
0 R8 A ]& o( P - unsigned char* e2prom_cmd_data;. L( U, Q5 e+ L5 }
- unsigned int data_count;
1 b8 ?. y8 `' t! W& r$ Y - } e2prom_s_cmd;$ t7 y9 T+ e% i9 z9 u% b- F
' V* c: N; b' H% K) O' D% Z, Q- #define E2PROM_CMD_READ 18 n5 O' s2 c P" S( c0 H8 @( i% j/ {
- #define E2PROM_CMD_WRITE 22 f, b6 }, q. z7 b+ B
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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* H. G3 x7 X/ @' N; ~( T/ E% \- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
2 P, P! B6 m% ~ @; r - e2prom_s_cmd arg;
; t; J4 X6 A# [ - unsigned char buf[0x18];4 n8 {, T9 Q+ B! ]: _/ S
$ R- I+ W- W% F' E" }& e- M/ K; I- fd = open(E2PROM_DEVICE, O_RDWR);
' T4 E1 Z8 \/ J& B - if (fd < 0) {" G# \: W/ z* T/ n. k4 V& h1 J
- printf("Device %s open error.\n", E2PROM_DEVICE);; E7 g% d9 C! L1 G3 Q$ i
- return -1;
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; ^5 [; Y4 E U- q: H# X1 M - arg.sub_addr_count = 2;& X2 {" } U# [" D- i
- arg.data_count = 0x18;
" V- R ~$ n0 V - arg.e2prom_cmd_sub_addr = 0x290;
' b$ k' P' M. J/ h - arg.e2prom_cmd_data = buf;
6 Q$ n" \$ ~9 V* z - ret = ioctl(fd, E2PROM_CMD_READ, &arg);+ Q% u. D0 j+ u3 K4 S
- if (ret != 0) {9 k5 y1 e- O6 X- B: [
- printf("Device %s read error.\n", E2PROM_DEVICE); Y5 G! K8 y. \0 K, v. n( I/ b. y
- return -1;
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5 g5 h' E* W+ l9 U3 c' s4 j$ t - memcpy(mac, buf, 6);8 G. D$ n% d# x. P) {2 c. \) z5 g' d
- memcpy(stbid, &buf[6], 18);
3 l6 s: F& E4 H+ x+ \& ^ - stbid[18] = '\0';. ^5 x* e- N2 y" Q
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- return 0; k; I+ b g) o& w8 N& _0 H
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- static int writeparam(unsigned char *mac, unsigned char *stbid)& ?# Z7 i+ f4 F1 `7 J A
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- int fd, ret;
. p; C( j( o ?, n0 ^ - e2prom_s_cmd arg;) A8 ~3 o; y! F, I( R* K0 C, `
- unsigned char buf[0x18];
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& k q6 |; u, |' t8 a5 Z! b. P- memcpy(buf, mac, 6);9 O( C+ t6 @; _9 ^+ \* _3 B7 [8 h; L
- memcpy(&buf[6], stbid, 18);
. e5 [; }$ Z! I9 W# X - fd = open(E2PROM_DEVICE, O_RDWR);# u0 a: ^/ K4 c! W
- if (fd < 0) {
# `$ S }8 c8 }) t# z# i - printf("Device %s open error.\n", E2PROM_DEVICE);1 g+ y- B7 h m h. `1 P1 U; `
- return -1;" x9 K; m5 g5 S/ f2 \7 }5 Y
- }
9 S0 C5 k9 _, O; u- \. J- Y, l) w. r* s - arg.sub_addr_count = 2;
7 b, a# d8 S: v; O - arg.data_count = 0x18;
* j+ I, E! X! | - arg.e2prom_cmd_sub_addr = 0x290;- N* T2 B6 V/ ]; A2 F; _
- arg.e2prom_cmd_data = buf;' p0 Z. B. n, R
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
# Y) y8 c( Q( q) c# K - if (ret != 0) {/ @9 l7 S! ^5 o
- printf("Device %s write error.\n", E2PROM_DEVICE);
0 [2 P1 U( ?9 B3 `! z* s - return -1;
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- return 0;# m+ Y% Q7 y! g- R; X6 d
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( Y1 D6 E8 [7 _( H$ f2 r3 Q/ G/ _- int main()4 W# m! @" \$ K# H" a: y
- {
e$ \( D6 i+ @" E - char c;
# \7 e0 @9 e5 v$ s: F - int i, macs[6];/ |! J; `- O( z+ M
- unsigned char mac[6];
) z- H _5 l3 j - unsigned char stbid[256];& J# [& j' G1 m* Q; G [: s
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- if (readparam(mac, stbid) < 0)* t. m/ Y; N. C" f& Y% y
- return 1;2 \' H# y+ K4 U! l. c( z$ l0 a
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- printf("Current parameters: \n");) l d! H# {5 Z
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);3 Q/ ^& f$ L0 p/ `, h
- printf(" STBID: %s\n", stbid);$ F) N! x% a, y2 }) u1 _
- 9 ]# t! O8 J2 T( v# D' r+ A
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");, R+ _0 E8 K) }- o9 t4 b% ]# ?' d
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {6 e$ _+ c6 z" f( @& r3 C
- printf("Input MAC error\n");9 q4 ^5 w3 l( c, @. j6 ]
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];* j- U1 c3 g) ~2 u- _1 e/ r# a3 A
- printf("\nPlease input new STBID: ");
& ~$ l( L- V+ O( [! f) k - scanf("%s", stbid);0 d, H# |# o% z( T9 U1 D0 x1 e
- if (strlen(stbid) != 18) {. Q; ^1 c: W0 U6 H$ g2 X; |
- printf("Invalid stbid\n");
2 H& E/ H" M/ L& v( A+ \ - return 1;1 a6 y3 f9 ~, ] S2 l2 ~& u' j
- }
6 E8 Z! q8 w8 ~$ P0 v - printf("\nNew parameters: \n");) }* T* c) k+ e+ i+ R% h
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);' S) o8 R0 v0 V# M
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");" `& Q. }8 Q7 N
- for (;;) {8 `7 A1 d1 f) c0 o5 f
- c = getchar();
+ W- n! D& ^2 A8 w$ @+ a - if (c == 'y' || c == 'Y'). |( V) J1 n& Q1 p, A
- break;
' \( f# n3 C9 C - if (c == 'n' || c == 'N') {
: Q" Z) m9 b6 T6 k( c - printf("\nAborted.\n");
8 }" e: @# ~* a* A2 u9 U - return 1;
6 H6 ~$ S- Q% T8 r" R# B- N - }
: \$ g/ z0 O6 t5 H; q - }
' i1 F% A: A- h7 V7 {9 }7 E - if (writeparam(mac, stbid) == 0)
. [ B- J7 |1 n4 j" m5 k1 t( R- P - printf("Parameters changed.\n");& H8 Y5 A+ p0 N
) u* n. D" N3 A' u3 l- return 0;; D) ]9 w8 e+ P; b
- }
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