本帖最后由 0522 于 2012-3-21 23:04 编辑 . }, s1 _. e4 X
! |* |: B. t! {4 c7 O0 G7 w修改的代码早有了。到今天不会编译。" U, i+ k! `% L# k+ [/ k
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
7 i/ _: _# }& Q' X" ^ - #include <malloc.h>" a: E& S; _( o: R) B
- #include <sys/types.h>: @# i: p" q$ L; }/ M" i, h
- #include <sys/stat.h>2 _5 f( D: i# r
- #include <sys/ioctl.h>- m5 [& W4 Y% N; R
- #include <stdio.h>9 w4 h8 J( U {2 E
- #include <string.h>: i/ l; }6 G/ R/ X
# k- D( Z( L$ E) S0 G7 T8 b' }- typedef struct {
6 j+ \ A5 s+ y: V; H* o, g - unsigned int e2prom_cmd_sub_addr;
% g0 E0 D# J6 I% G4 X1 O - unsigned int sub_addr_count;
3 m) g4 Y! B1 b5 r9 Y - unsigned char* e2prom_cmd_data;
2 @5 J# @7 S; X" z5 P - unsigned int data_count;
1 _; I7 O6 C3 b- k4 l. `5 o: D - } e2prom_s_cmd;" y% `/ H: K! V: R2 d
2 y) r5 h% `: n8 B% C8 P2 F- #define E2PROM_CMD_READ 1
3 @8 U7 J* l6 n. Z - #define E2PROM_CMD_WRITE 2
9 G8 P- q4 P; S4 c8 \ - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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; T& X, G6 C# u: i. l8 z( ^) n- static int readparam(unsigned char *mac, unsigned char *stbid)
3 y$ C: a. G; s8 R! P" B1 h! v: X - {
5 p3 E4 Y( [, K4 f9 R5 b - int fd, ret;
o3 o( X; Z! L - e2prom_s_cmd arg;( w. @) k" y- L6 x4 F" o1 H
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
Q F, @$ z" R3 N7 x/ X% f7 K1 `9 t - if (fd < 0) {
) [; g3 m! I& G; v/ ]- P* e: ? - printf("Device %s open error.\n", E2PROM_DEVICE);# w! x/ N8 d7 g: i' D4 n8 z+ |
- return -1;0 D" A& L8 a/ B
- }& I2 O# V- c, N S
- arg.sub_addr_count = 2;
7 V, ?3 H; b# ^, | - arg.data_count = 0x18;: j3 N9 r7 U- N% e- h# k7 Y5 ~# q/ g
- arg.e2prom_cmd_sub_addr = 0x290;
- J) W8 e& Y J/ H% ?& q. h$ N* J; U - arg.e2prom_cmd_data = buf;6 h+ e: V; B; g' j3 R! u" ~1 R
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);0 U8 y$ j: r6 W
- if (ret != 0) {
, ~& S6 s/ T. w- [ - printf("Device %s read error.\n", E2PROM_DEVICE);0 K" Z* {) _6 T" K7 m$ W# S: E
- return -1;: m* C' w7 M- `+ S9 v+ {4 K4 }
- }
! s8 n' P1 F* o# J - memcpy(mac, buf, 6);
5 n3 Y1 E" s1 { F0 j7 b - memcpy(stbid, &buf[6], 18);
! A* c5 t2 F( Z% t - stbid[18] = '\0';
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- return 0;1 b0 g- }% @ y) v; e0 v
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
: r- J/ R& M5 `' g1 z - {( g, I# m1 O j+ _3 `* U+ W* `7 }
- int fd, ret;
5 R% Q2 }8 O2 k, I0 T9 | - e2prom_s_cmd arg;
+ X% _/ M9 V/ [* j6 [ - unsigned char buf[0x18];" d# v9 d3 ~( G! j, X1 ~
$ E9 Q4 Y/ I: _2 N- memcpy(buf, mac, 6);- L/ \+ k5 L3 u- |/ Y" W
- memcpy(&buf[6], stbid, 18);; i% V/ @4 `1 h4 ~3 J
- fd = open(E2PROM_DEVICE, O_RDWR);1 S% Q4 |4 d3 J9 C! i) C
- if (fd < 0) {' k$ \; @9 x+ e' e; I# u$ e
- printf("Device %s open error.\n", E2PROM_DEVICE);
7 f, v9 r% n- @& w% l% f - return -1;& m' q% c" `8 x0 x9 r
- }3 q v$ u+ g g, x. X% L
- arg.sub_addr_count = 2;
$ e( N# L) p; d - arg.data_count = 0x18;6 ^& e; I z3 v% W* }3 t5 C) T
- arg.e2prom_cmd_sub_addr = 0x290;0 J3 x5 Q; g# z& m) r* [; Y4 m5 d
- arg.e2prom_cmd_data = buf;
& k5 X, j$ y) [8 T - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
2 C; n; `) P: a - if (ret != 0) {
$ D1 N L, t( z2 z) |/ t( @; L - printf("Device %s write error.\n", E2PROM_DEVICE);& [5 L/ l( E3 J* ^7 c
- return -1;
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p, F2 a: M$ ?7 k- o# a- return 0;
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- 0 Y" i$ b6 v+ i* Q* { `
- int main()$ P4 x9 C( N" ^( m" L0 u
- {* W* U7 A2 P- n# z
- char c;
, ` Q/ d( C2 g6 i! |$ Z - int i, macs[6];
, a' y( s& e, I# [* `6 F - unsigned char mac[6];2 `4 D K T5 R# ?: y9 z% M. b. M3 z
- unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0) U( U, H3 v3 |9 U1 T R e
- return 1;
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, s8 u' r! r$ z& w: ^- m. D- printf("Current parameters: \n");1 m; @0 b+ r5 M* L0 _
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);9 Y: h* }2 S! S% R
- printf(" STBID: %s\n", stbid);1 `' F, J( j9 I2 s$ Y( o k
- . L& W% j1 o7 W. o m2 R
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");( c! F% s$ m2 ~
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {- l _" U V8 T" b( H" O( R! X
- printf("Input MAC error\n");
& U" U% c" V+ Q( Y1 ] - return 1;% y7 V- g8 L3 N1 c7 N) x
- }+ y h3 O! w* O) [
- for (i=0; i<6; i++)mac[i] = macs[i];* b z, F' o3 u& Y$ {6 d
- printf("\nPlease input new STBID: ");' K! i! p2 K7 F4 U5 D% t3 x g+ X
- scanf("%s", stbid);6 X q. R) F) G4 q6 n
- if (strlen(stbid) != 18) {
+ H! R" d$ M5 Q# w2 u, D, c - printf("Invalid stbid\n");0 V7 C( a( l! F' L- C2 y& B- i3 I( F
- return 1;
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- printf("\nNew parameters: \n");; x; Y; x' s3 N) Y" d' ^# @ L
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
9 {! F9 |# x6 j1 I$ g! n3 Z5 J - printf(" STBID: %s\n", stbid);+ `4 O# Y) M4 ?3 A, g% n
- . S+ w5 x' [& J5 X S8 U. _- p
- printf("\nDo you want to change paramemters? (y/N) ");9 m/ R9 \/ A, D: E' W
- for (;;) {: B# S& {* O9 d4 ?
- c = getchar();
' |0 L8 T4 p4 V' j, Q6 O - if (c == 'y' || c == 'Y')8 P) F9 }, x6 v# I
- break;9 h2 f; K+ e4 H% q# N
- if (c == 'n' || c == 'N') {
( |. _9 Q3 }+ P/ D - printf("\nAborted.\n");) s9 W% N0 c4 |# M! A5 {: ]4 r, Z: c
- return 1;
' }5 B* X* [3 _" [8 w+ A0 P& b - }
0 j' z" p7 f/ X+ M5 n - }
8 L+ R! Z# U* l, G - if (writeparam(mac, stbid) == 0)
8 M. }' D% X! Q. X) Y8 h0 | - printf("Parameters changed.\n");
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& _7 c7 S2 x, h- return 0;
m6 M! a2 j4 m) o$ q - }
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