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。. c0 O8 i/ b4 R* @- S/ w' R
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>) s. s$ h$ }) ]# R$ T
- #include <malloc.h>2 ?/ y3 S2 H0 @) n# ?2 m
- #include <sys/types.h>
1 }% d3 W7 V1 ]8 f2 L2 q% T - #include <sys/stat.h> u' M' i/ K; F; ?* C# j
- #include <sys/ioctl.h>& {( [ K, k# @
- #include <stdio.h>
q/ u" |7 x5 d" b. n6 J; r( d - #include <string.h>2 j; E) f' S( O/ z
- 8 g, j- x$ H1 Y' t( e; [
- typedef struct {
; n1 i' c8 h; ?8 a - unsigned int e2prom_cmd_sub_addr;! v( f6 Z1 z( ~5 { q( { t% S
- unsigned int sub_addr_count;
) o* ? O3 @( a9 { - unsigned char* e2prom_cmd_data;4 H- c q- {4 {, R; ?
- unsigned int data_count;
( F. Y5 U8 n( e6 F( b - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
/ P9 K8 y* i/ @% R+ @6 d* q! p - #define E2PROM_CMD_WRITE 2( s0 A' _. x3 X' h* b1 R
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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! s' m/ g- I, J7 N4 K% F- static int readparam(unsigned char *mac, unsigned char *stbid)
8 ~5 j8 n- C7 `$ l! f - {
& j$ `% O2 K6 B) N7 `2 W" ? m - int fd, ret;
7 a3 ]' v9 X- }6 d9 \! {5 | - e2prom_s_cmd arg;
. i O# `* p! s3 ]- D - unsigned char buf[0x18];
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5 E h3 j- c- o! A- fd = open(E2PROM_DEVICE, O_RDWR);' V+ d; {* o' ^: I& @8 S# K$ |
- if (fd < 0) {
& p# l) |: J- f1 ?: n - printf("Device %s open error.\n", E2PROM_DEVICE);# \+ M* t& e) x6 \: F" O8 ^3 h
- return -1;
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- arg.sub_addr_count = 2;
# ?) C8 |7 V2 b7 ]" K: s! t - arg.data_count = 0x18;) H, Z- o3 a5 b- i2 g
- arg.e2prom_cmd_sub_addr = 0x290;
7 X* {6 }( r- U4 V& f" t9 D7 f+ X% { - arg.e2prom_cmd_data = buf;$ p5 G$ T k1 c
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
9 [) p% D7 V/ G: Q - if (ret != 0) { \2 m3 J, Y) h' t% B
- printf("Device %s read error.\n", E2PROM_DEVICE);2 q9 [/ ^+ M' X; v2 |
- return -1;
- K" q' ?; W* g* E8 c - }
/ s3 `0 @1 d4 i8 @ - memcpy(mac, buf, 6);' R' x2 _! @1 V1 C
- memcpy(stbid, &buf[6], 18);# C0 s7 A* S) @" G U1 A& @; a' J
- stbid[18] = '\0';: W2 ~ I2 R8 i
- % {' _% e8 l- q1 k
- return 0;
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4 d& }9 X) n0 X* [4 g1 H- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;- s0 v" I/ X2 X; W
- e2prom_s_cmd arg;$ |% @' o) x; o
- unsigned char buf[0x18];
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- F& v! k* P- c" |7 Q5 }- memcpy(buf, mac, 6);% Y6 {8 f! w. N- S6 Y+ H2 U6 A
- memcpy(&buf[6], stbid, 18);
5 [' c4 l/ J/ w8 R4 E. _ [ - fd = open(E2PROM_DEVICE, O_RDWR);
* n# W# i) ~( E) {" d }% r - if (fd < 0) {
& K) v, E& L9 F# I9 X - printf("Device %s open error.\n", E2PROM_DEVICE);& n5 g/ K# X+ Y6 J) u: @: ~; V) s
- return -1;
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- arg.sub_addr_count = 2;
9 ]% F8 }% c2 `' W5 o/ J - arg.data_count = 0x18;. g) T1 m2 J# E; S
- arg.e2prom_cmd_sub_addr = 0x290;5 z g f; Z( B2 \( u
- arg.e2prom_cmd_data = buf;/ X) h' r$ U' N5 M6 y
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
* h8 i4 Y# A# m8 A. a - if (ret != 0) {# B2 X$ d! j$ e) W E6 _/ |
- printf("Device %s write error.\n", E2PROM_DEVICE);3 d3 f4 v* t, ~, W N, T/ T# n
- return -1;% [: E6 Y3 U7 q5 e6 A( Q2 r* _* C
- }
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- return 0;
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- 2 q% e d5 U& S: U9 j
- int main()
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4 u, `1 H' H O: I9 q8 f! m - char c;
' o$ L, ?/ q+ ~* w7 t: q - int i, macs[6];. m( g# X; v8 o1 |: }
- unsigned char mac[6]; s! n, j Z9 |& a: H$ D' B1 m
- unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0) }) V0 T8 ^! [" @. `
- return 1;; F% u! b/ |2 y5 \: N1 z* U8 a% N6 `
- & b3 p, o( g: a k5 h$ s
- printf("Current parameters: \n");0 h0 R3 e( V3 W6 R5 K( e, K
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);5 k& E0 s; H' p: {; A* \
- printf(" STBID: %s\n", stbid);$ c5 p U: Y* x8 f! X, s
- / O# X+ ~, A$ H5 V' b/ F
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");$ d* y2 [0 | B- g% }3 ?
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
5 c7 e: w1 d- J7 @. w b$ a1 j' p% X - printf("Input MAC error\n");
$ [) y, d; Z( F - return 1;
- ]" Y6 u& k7 l/ L% ^: N/ ^- x7 ^ - }
8 ~8 s3 l( v/ Q4 S$ M) } - for (i=0; i<6; i++)mac[i] = macs[i];: f# k4 _( f/ Z: j2 z r$ t9 T( W- x
- printf("\nPlease input new STBID: ");# Z3 R3 u+ Q2 |- a$ X. p) |
- scanf("%s", stbid);4 w+ y4 z- t! {4 }
- if (strlen(stbid) != 18) {+ Y3 ^5 E5 I7 z
- printf("Invalid stbid\n");
* ~; k9 S; d; Y/ G1 ?) E - return 1;
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- printf("\nNew parameters: \n");
, V6 I' n) ^! U0 S6 J, f - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
- X0 j& W! X# ?/ d+ o1 H - printf(" STBID: %s\n", stbid);' A+ ^! P$ K) \* ]" v9 A0 {. ^' w% ]
e! J2 E) \, H1 L- printf("\nDo you want to change paramemters? (y/N) ");1 p3 F" q! e3 _: u9 t; j1 _/ `! M
- for (;;) {
: V% R( D! j9 d' q. ?. W; u: G# ] - c = getchar();
j# E/ g1 f+ [( k - if (c == 'y' || c == 'Y')
$ T* Z: q# ]0 I# X - break;
" A5 a: e' |4 [% C& T& K - if (c == 'n' || c == 'N') {# K, R5 e( F5 h) ^5 d0 F$ G
- printf("\nAborted.\n");
9 P3 U0 Y0 m4 \/ F }3 ?6 s4 J - return 1;
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- }# t" Q1 g& K6 J8 M
- if (writeparam(mac, stbid) == 0) ; c8 X7 Z4 l/ l
- printf("Parameters changed.\n");
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* P0 y3 S& x* S( N% b0 z1 f3 k% ]- return 0;( ~1 }3 j! M9 u% _+ H" u
- }
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