本帖最后由 0522 于 2012-3-21 23:04 编辑
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4 A- e% e" i# s- J& L* P2 `+ T! d$ k修改的代码早有了。到今天不会编译。
6 {0 m2 x& C# m4 T1 G需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
) @% a6 f3 C9 I - #include <malloc.h>
0 E: c% y2 n \ - #include <sys/types.h>/ i3 `. Z% P6 ?) P0 d6 o7 w
- #include <sys/stat.h>' e' x" _( E T. H" ^( q5 d
- #include <sys/ioctl.h>
$ E* O4 n1 W6 M% F+ m0 k- n8 y# ^3 G - #include <stdio.h>
8 x- ~8 D- b0 O% V" F' j - #include <string.h>
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* c# e2 c3 E5 y: ?/ N3 `- typedef struct {* P5 N* g+ G, c3 n% T" @
- unsigned int e2prom_cmd_sub_addr;! B, U. t" x$ q! r, j5 G/ n# U
- unsigned int sub_addr_count;- Z: b$ E$ m6 {0 g. W0 X6 j
- unsigned char* e2prom_cmd_data;4 m4 D# k) D: n' `( [
- unsigned int data_count;- A5 Q1 s1 h3 l* G" y5 p
- } e2prom_s_cmd;: }! H% G) d5 p* ]8 f/ B% S
9 o) x$ o; G' D- #define E2PROM_CMD_READ 1) l1 M# n/ L1 C$ t2 n2 V Q T
- #define E2PROM_CMD_WRITE 2
8 q: k1 q+ m5 ^3 O W/ s; v - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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3 c: M" V0 t8 D/ f4 P% ?- static int readparam(unsigned char *mac, unsigned char *stbid)- k$ ?7 k) v9 {' V# @8 r3 Y
- {% Y* r) i* }4 S) n1 [7 V9 i( b& E
- int fd, ret;) M/ N0 c( f- X+ ]8 Z. f* g
- e2prom_s_cmd arg;. y4 }9 G( \( _: w+ X- ~2 V$ ]
- unsigned char buf[0x18];
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: _0 {. t$ i1 |- o0 U8 c- fd = open(E2PROM_DEVICE, O_RDWR);3 |! z% F: K/ ~% v* o9 @
- if (fd < 0) {
: m) M1 o9 z6 y0 H - printf("Device %s open error.\n", E2PROM_DEVICE);( U3 O, V5 b# g, H8 q! x8 D6 _7 j
- return -1;9 ^5 T0 _4 a4 N( x5 w9 h! C
- }
3 w" ~* w Z0 k7 \( V( }( q - arg.sub_addr_count = 2;
7 E' x* ^( I- m - arg.data_count = 0x18;* W: ^! z4 @2 P& |) k3 H
- arg.e2prom_cmd_sub_addr = 0x290;, b: O4 a0 L1 M7 s# y
- arg.e2prom_cmd_data = buf;
# w8 j1 w2 {7 M e9 A- S4 e - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
% o: V5 C( R$ [8 l) S - if (ret != 0) {; v' j9 e6 e6 h$ r9 Y
- printf("Device %s read error.\n", E2PROM_DEVICE);
* x$ Q! l/ L2 ]! t X6 d5 N - return -1;
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- memcpy(mac, buf, 6);: d" D* [9 h, }: M1 ?
- memcpy(stbid, &buf[6], 18);
, b% u( t- ^7 m) [$ V! R - stbid[18] = '\0';2 H. z, a/ L: s' o* S7 z& @" j
- 6 Z2 ]4 M1 q0 @9 f( M+ ]
- return 0;* }$ h* e4 q6 _/ n
- }( f: Z# ` u# I% ]% ]
- ' D) x1 C9 C3 s7 h# n4 w5 _
- static int writeparam(unsigned char *mac, unsigned char *stbid)- j5 P6 V' U) t! i/ n2 X- R
- {
7 g( C$ `8 ~! L7 T5 d - int fd, ret;8 T3 o; |0 ^& F" a
- e2prom_s_cmd arg;
+ @. p' \5 v4 \4 ^0 M - unsigned char buf[0x18];; ?% R$ k0 \; N( H
- 2 O W' s% s- d* p+ n, P6 W @, V5 ^
- memcpy(buf, mac, 6);
) k, z: [( G* N7 t: O% p0 O: [ - memcpy(&buf[6], stbid, 18);
% H" M8 i+ j- a2 \% e9 r1 L% o9 h - fd = open(E2PROM_DEVICE, O_RDWR);( Y! S6 ]* a7 [4 D7 W! |4 U, W
- if (fd < 0) {) a* H9 K* d1 K% @5 c( T7 e6 |7 {5 ?
- printf("Device %s open error.\n", E2PROM_DEVICE);$ m6 V( o6 i6 J4 Z* D! e* _. ?
- return -1;
G" N0 o9 ~* a2 i5 U8 a - }1 D, H4 l8 x3 C, X8 V: X$ `
- arg.sub_addr_count = 2;2 [. Y+ ` m0 ?3 H8 z# }
- arg.data_count = 0x18;
4 n. o9 j& J" m" Y7 W, H+ o - arg.e2prom_cmd_sub_addr = 0x290;+ c d+ M$ F" a$ S5 q) Z& }0 \
- arg.e2prom_cmd_data = buf;# x, [1 m0 _: ]# }1 U; p9 u2 m
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);5 I- l, T9 G5 V6 z$ z; z
- if (ret != 0) {
9 [5 m4 h0 F: H+ a B& L4 u N3 g; c/ Z - printf("Device %s write error.\n", E2PROM_DEVICE);
$ \8 m6 y: J: I - return -1;* B1 p. w1 {1 I2 W$ O
- }
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- return 0;
' t4 Y% \- ?1 W( o0 M - }
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. O/ `0 W3 {. ]7 J, ~+ c4 J- int main()
1 W$ u& u8 J- i& b/ P% o - {
, J4 S! r( i; V - char c;1 s c$ K- Q2 |1 A- B8 A3 S
- int i, macs[6];
# H6 ]) l$ d+ v2 R4 p1 T7 C - unsigned char mac[6];/ M& q0 ^4 H# i, G% j( i1 t5 _, _( [
- unsigned char stbid[256];
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) m4 y' k1 b. }, X: ?# s- if (readparam(mac, stbid) < 0)
% u, g7 W/ \3 t. V - return 1;; H& { `, ]- Z
- 1 m3 Y: p3 S; Z7 k* D
- printf("Current parameters: \n");
6 |: P$ i3 T+ e# O1 _8 | - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);8 [! h* [& j/ }& t B
- printf(" STBID: %s\n", stbid);# q2 T' t$ r) F( K# ]) S: Z b9 `
-
+ C8 L! c) A [1 e& h - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
" }+ i9 E/ Z: U K0 l2 ?( | - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {6 \4 U# t% D7 e- N; C- S
- printf("Input MAC error\n");# S1 {8 m- o% [) ]; `! G
- return 1;9 ~* ]# c3 f4 M
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- for (i=0; i<6; i++)mac[i] = macs[i];" k9 \8 `2 Y' p: I+ d4 X6 w
- printf("\nPlease input new STBID: ");
; t! S: J4 G) s! [+ K - scanf("%s", stbid);3 R# h& z) ^" `8 r& h
- if (strlen(stbid) != 18) {
$ d3 N: V9 p6 O( |, V( ^1 V7 u - printf("Invalid stbid\n");) E R/ |% x7 h1 W- \4 @* U- J8 t+ k
- return 1;( b# r4 e0 H# n2 C+ F1 ^
- }& J$ i* X7 f t* f/ P o
- printf("\nNew parameters: \n");
* a( r2 j' P8 \. r$ R. @* e - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
0 ~5 C7 t& W! J3 l4 ` - printf(" STBID: %s\n", stbid);; }; Y) O% \1 e) Y4 L. |( f# F
- * e3 M; h b2 d
- printf("\nDo you want to change paramemters? (y/N) ");
' m M, ^, X4 J f - for (;;) {
1 u2 P/ m- B1 T6 D - c = getchar();
5 \9 T. h; u; I/ ]6 a8 k - if (c == 'y' || c == 'Y')
Y A# _( t0 h( Y, ? - break;! v; @7 S$ y: m/ R8 ?3 J
- if (c == 'n' || c == 'N') {
: c# l8 `3 b% N' M+ G ] - printf("\nAborted.\n");# u7 \' Z1 R4 i ?' @
- return 1;
( e& p7 `9 H3 ~% n$ ? - }
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- if (writeparam(mac, stbid) == 0) 2 ]2 z' }( T* r* K' Z6 l6 L
- printf("Parameters changed.\n");$ s( k( D- L w! X: P8 p
$ j& X: K6 D: e1 j4 g% L/ ^- return 0;1 c1 q; _( F N
- }
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