本帖最后由 0522 于 2012-3-21 23:04 编辑 + Y1 c$ T' i8 I
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修改的代码早有了。到今天不会编译。1 @2 ^0 B/ i& Q1 [3 Y( I
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>8 j/ E- h& x4 f P( B* s
- #include <malloc.h>
2 T- T: g( Y3 B5 ~( ^2 `1 @% U$ { - #include <sys/types.h>
O: Z# ^4 E c! Q' u2 [# U - #include <sys/stat.h>
: s% Y0 V2 Z7 A/ n! f t/ v - #include <sys/ioctl.h>4 o. ?& v+ q8 b; `. e5 H
- #include <stdio.h>
: K$ G2 m% U `, x1 Y, n3 d( [ - #include <string.h>% P, ]; t) s+ t% E
- 0 Y5 u0 }0 w6 b) E2 K' k! j2 b
- typedef struct {
N& v% v; I' K' N: Q4 s - unsigned int e2prom_cmd_sub_addr;
! S5 R. V) H: a( K3 W7 K - unsigned int sub_addr_count;( h. r- I9 A+ P1 i) u
- unsigned char* e2prom_cmd_data;
9 N7 r4 o% o7 L9 @( I" g - unsigned int data_count;$ Q7 F: |- l6 V) z
- } e2prom_s_cmd;
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0 L( e t* M' `2 N- #define E2PROM_CMD_READ 13 S7 x4 F$ |0 @- d+ Y5 G8 [ Z
- #define E2PROM_CMD_WRITE 2
6 J3 \; G$ ]3 E! H4 x - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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1 {% \6 z% C# B- static int readparam(unsigned char *mac, unsigned char *stbid)$ r$ q6 T/ ?4 \- \
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- int fd, ret;- D' v1 I$ y+ z9 U
- e2prom_s_cmd arg;/ e* e- ^9 _ W( ?: C5 V/ M
- unsigned char buf[0x18];
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/ G, ~5 |! t; E- fd = open(E2PROM_DEVICE, O_RDWR);+ [5 y' f3 e2 ^- D
- if (fd < 0) {, A1 W: _6 ]4 G8 t
- printf("Device %s open error.\n", E2PROM_DEVICE);
J" b# @% D6 E7 y4 x/ Q" p - return -1;
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- arg.sub_addr_count = 2;! `1 j3 e; }% g5 |( C
- arg.data_count = 0x18;
( b3 ~# F P8 k3 g9 \1 X- U s - arg.e2prom_cmd_sub_addr = 0x290;1 L: A# Q9 \: l V
- arg.e2prom_cmd_data = buf;
9 D+ r0 ^6 c! R# E4 f/ R - ret = ioctl(fd, E2PROM_CMD_READ, &arg);5 f3 T$ b1 O: V. ]) h+ c
- if (ret != 0) {5 a: x6 Z2 t' R" C
- printf("Device %s read error.\n", E2PROM_DEVICE);7 o7 C+ n8 M1 T" o. F
- return -1;4 d4 ?/ _' [, [. ]' q5 z
- }
' f3 w8 F% m r - memcpy(mac, buf, 6);* K: R$ `4 n4 E7 r. v
- memcpy(stbid, &buf[6], 18);
, ?; p0 ?6 U2 \ - stbid[18] = '\0';
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7 M! s, |4 T/ u% h- return 0;
; D( F) ^$ S$ v: \8 I% }' | - }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
7 c; C, c s) _3 c# [ - {
6 O9 w. W8 a' v - int fd, ret;7 i1 ^7 c: O+ o- u
- e2prom_s_cmd arg;
: `, d5 c- G8 R* a$ h8 w4 x9 @7 `/ A, Z - unsigned char buf[0x18];4 D7 |! h5 T: A
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- memcpy(buf, mac, 6);
, T' r0 t0 U6 v9 R! A3 E - memcpy(&buf[6], stbid, 18);% e. q! D0 L8 D# _+ e
- fd = open(E2PROM_DEVICE, O_RDWR);6 [' |# L R- ^3 X" ^' u2 I5 U
- if (fd < 0) {
, Q% G7 o( f# D2 ]. k+ Y - printf("Device %s open error.\n", E2PROM_DEVICE);+ I# R6 {" y8 ]) o' y6 \% R
- return -1;
1 `; I# n# F% {, @) l - }
' }/ n6 v+ e1 s. h5 C - arg.sub_addr_count = 2;
% x' s( v9 x* ^6 } - arg.data_count = 0x18;
" h- F* r. L T% H: k - arg.e2prom_cmd_sub_addr = 0x290;% y3 U- ? `, f6 l
- arg.e2prom_cmd_data = buf;) H4 O7 M1 e- P
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);* k$ L7 X* } p% G/ {9 i) z
- if (ret != 0) {
/ x+ q3 {" C. C; ] - printf("Device %s write error.\n", E2PROM_DEVICE);7 E6 u# F- R9 r3 o8 ?$ I K6 c
- return -1;9 Q8 `/ c) w( s
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: J: I+ S: j3 |5 v& T' i- return 0;
) S2 r, A6 q. q& @ - }
/ U& i" M5 h0 k( h8 B0 T0 X - ; U: a. x7 t9 X0 `# E8 e% c$ {
- int main()0 D# n% [; U0 u( w- Y2 D; }
- {" x# b( ? U' v4 l; ]3 y
- char c;
" {0 r& b1 Y3 q% s M; S8 Q9 A - int i, macs[6];
5 N, K6 X& f2 |" s7 } - unsigned char mac[6];
* O5 J7 ~/ G7 Z) x - unsigned char stbid[256];5 \- y& \' {7 j4 R* t
/ T9 n6 o4 W# D; h, b9 i! e- if (readparam(mac, stbid) < 0)7 v3 p/ J+ @0 O* x9 H+ ^
- return 1;5 @. R& `7 D$ a2 q4 r
- % B1 V) F0 f% K4 U: C$ G/ R( i
- printf("Current parameters: \n");6 y/ ]: o' T0 c9 x" ]
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);+ | a6 e; ]; U8 g/ o
- printf(" STBID: %s\n", stbid);
3 H w& q, q0 l( R0 g9 X( C3 b -
# I; l g$ l- U7 M1 _) r7 Y - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): "); {" T: x4 H c$ b3 }8 k
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) { [' K1 }: G! c$ p9 c1 `6 }) X
- printf("Input MAC error\n");
3 G6 R# N) z& K% O! q0 U - return 1;, J8 R& d+ g, O
- }
9 `- L) u# }5 b! ~4 Z - for (i=0; i<6; i++)mac[i] = macs[i];- c. `$ K; D; W, Y" J5 l3 W2 Q
- printf("\nPlease input new STBID: ");
b6 s' J9 E2 @2 C - scanf("%s", stbid);* C% L4 e' p+ S, G; Z
- if (strlen(stbid) != 18) {1 U( `6 H! Y$ J. q/ f
- printf("Invalid stbid\n");- o$ S! |# Y5 o; J% ^
- return 1;' b( z" l1 I" J& ~
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- printf("\nNew parameters: \n");4 m# H6 I* [& F) L
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
, L! J& g* T& ^7 m5 Q - printf(" STBID: %s\n", stbid);
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: x8 Q3 A8 m9 d& d, h1 b/ D; k- printf("\nDo you want to change paramemters? (y/N) ");
# S' L- e) U. F C/ D' w0 s0 p - for (;;) { F3 X7 P- `" o6 R
- c = getchar();
0 G+ T% m( V$ C4 k9 s3 J* v - if (c == 'y' || c == 'Y')* ?0 g9 C5 Y2 m+ P$ U
- break;
+ O6 s# P6 D% _# S - if (c == 'n' || c == 'N') {
6 L7 ]% l$ w" _4 b' w7 N) L# ?, q - printf("\nAborted.\n");" m. C7 z/ C7 F2 c. P" j
- return 1;& X5 V- t8 C& j) B- f; m% |
- }
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- if (writeparam(mac, stbid) == 0)
* ^" J/ C! [: I! x6 I - printf("Parameters changed.\n");
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* j9 [4 ?. u: {5 z2 l- Z) N- return 0;
; T5 q+ f6 d/ T - }
复制代码 |