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。3 r- B# a- a; @8 r
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>: m& r4 u8 ]) A2 }( h
- #include <malloc.h>. Y0 m3 D R3 w6 K* L# v
- #include <sys/types.h>, t: ? Y# k* ]- y: J" t
- #include <sys/stat.h>3 N! E* W& w( x7 x' m6 @, H
- #include <sys/ioctl.h>
% D8 S& t- z0 e+ U% w4 w* |5 i" G - #include <stdio.h>. i" \3 z5 _$ S4 I/ Y" X
- #include <string.h>
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- typedef struct {
8 B- ^' K7 t4 w5 g - unsigned int e2prom_cmd_sub_addr;3 q( W" Z9 ?" T0 C
- unsigned int sub_addr_count;
/ n5 {5 j- f6 r0 _ - unsigned char* e2prom_cmd_data;+ ^2 f1 A6 C, s
- unsigned int data_count;8 h) ^7 T) O/ Z8 j# W
- } e2prom_s_cmd;" `) J3 b0 n8 R4 l1 [& \1 `
- # ^# R; n- [& c9 s( R
- #define E2PROM_CMD_READ 1) [& w% R: G/ }) k4 u! W9 Q1 m
- #define E2PROM_CMD_WRITE 2! ~! M" l4 ?/ R. k
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"* `- R+ ~" R- x+ E
$ F2 e+ Q3 T! `5 j- static int readparam(unsigned char *mac, unsigned char *stbid)% f6 C& B! b( g. K
- {
) P* i# }9 c# p: s' a. g8 c - int fd, ret;
1 l, B4 p6 M) r, C* K3 o - e2prom_s_cmd arg; @. s* G9 x* c5 P
- unsigned char buf[0x18];
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4 i; {$ Q8 g' A, L. E; J- fd = open(E2PROM_DEVICE, O_RDWR);0 `. E1 z1 w6 k, }4 `3 P( u
- if (fd < 0) {/ A y! ~) `: w! U+ [3 e
- printf("Device %s open error.\n", E2PROM_DEVICE);0 G) C' K" O! [3 T! p9 D5 c. D% i
- return -1;
% x3 k ?. a+ @6 a" h. g% _$ ~ - }
4 e/ @( M) R- E6 R( n9 ^6 Y) O - arg.sub_addr_count = 2;
; Y6 k+ J b. O" c. }5 E - arg.data_count = 0x18;
0 \* ]$ f% l* g+ S' ^6 \ - arg.e2prom_cmd_sub_addr = 0x290;
' R! d1 @& I! q, J - arg.e2prom_cmd_data = buf;3 n. _7 O6 I' N. J2 h
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);0 s8 t1 u% j4 P5 e: `2 c. P
- if (ret != 0) {! N4 q9 {3 V/ @' M0 u
- printf("Device %s read error.\n", E2PROM_DEVICE);9 }0 N( ^3 F3 Z% C" b. N% F% X
- return -1;3 Y: O( Z2 B2 z3 e4 d$ E5 x+ F
- }
' i$ E# x: ~) e" Y - memcpy(mac, buf, 6);$ y% |8 y/ Z$ D5 H* R* f2 ?
- memcpy(stbid, &buf[6], 18);6 V; ^# E" O, o' [$ r4 `3 m
- stbid[18] = '\0';
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- return 0;
* w. B. M! e# k: D+ K - }; ]& L3 Y- I1 T) a' c
2 x9 I/ R& y8 O- static int writeparam(unsigned char *mac, unsigned char *stbid) |! l" R- [* l7 ~* c. z( z u8 a; y
- { |9 `! {$ _, r: d$ M) d; x
- int fd, ret;
/ f V1 G1 p3 [4 u: P - e2prom_s_cmd arg;& O `: D2 E0 H" u. P/ ^! [% Z
- unsigned char buf[0x18];; H* s i9 P* J7 k% |# L' N7 G$ a
" d2 d0 G9 K- j& G1 ^- memcpy(buf, mac, 6);
& b( @9 |; B0 h5 F) j4 c - memcpy(&buf[6], stbid, 18);, E, Z* z8 [" t7 @: X d
- fd = open(E2PROM_DEVICE, O_RDWR);. R# V! @! B9 x; M
- if (fd < 0) {
2 e, d: s1 @& A- R5 a1 X# [ - printf("Device %s open error.\n", E2PROM_DEVICE);! t7 z8 n- j, Q2 u3 G4 U# Q# G
- return -1;
( b3 d! J0 y4 @0 k$ F+ t; l) j% N1 | - }
/ p4 s# L$ P5 x6 g- x, |( N - arg.sub_addr_count = 2;* R. i3 q" j/ Q a
- arg.data_count = 0x18;* ^6 g7 M' m& j7 L9 b" g
- arg.e2prom_cmd_sub_addr = 0x290;: m' x9 B2 Z* \
- arg.e2prom_cmd_data = buf;
: r9 z: F9 O& m; {' n7 ]) S - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
7 H3 k: c$ j/ k; ` - if (ret != 0) {
5 x# z& o1 X" Z( c3 l, a - printf("Device %s write error.\n", E2PROM_DEVICE);
+ c# O% D' c% O4 l, y' ^' L - return -1;1 `1 B! }) o4 A( ]9 S
- }
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- return 0;$ e6 x; l y+ M5 ~9 }2 K/ j
- }
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& w4 ?: n( s% w% m- f- int main()
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- char c;0 c7 f* h8 ]7 m; s) J# x" m
- int i, macs[6];
* l& P8 S; i; _3 D2 p1 L - unsigned char mac[6];) A, H, R' B! w8 b- ]) R4 g
- unsigned char stbid[256];
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( W5 E6 u2 h. s6 K3 ?) R. f- if (readparam(mac, stbid) < 0)% U- ^7 I1 B3 T: p
- return 1;2 ?: G. S' S" a6 }" N9 Y
- 9 z+ e" @; d, i3 K i; J
- printf("Current parameters: \n"); c8 _7 p6 d# L3 x: F
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
" Y3 ~! [, [$ m- k$ I - printf(" STBID: %s\n", stbid);, ^) s% f; R2 l- l4 c, w
-
6 A5 ]! e" H M - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
* S9 \0 |8 e2 H4 f2 e# J - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {5 p: p! |& z5 s$ ], ~
- printf("Input MAC error\n");
( M8 M7 c" P& g r - return 1;
0 A- p* k# \, w B5 l - }
9 M# a, w r8 B# m4 D4 L3 j - for (i=0; i<6; i++)mac[i] = macs[i];
7 e5 q- B$ @. k2 W$ U/ M, r, L# Q - printf("\nPlease input new STBID: ");
o) j# K8 a5 w2 O7 B$ V - scanf("%s", stbid);
; p$ @5 U; r W+ h/ j' Z' A3 v - if (strlen(stbid) != 18) {
5 N4 I3 S g$ f- x2 ^ - printf("Invalid stbid\n");
1 ~- S" p/ l: l+ p- C2 q7 @) H - return 1;& a4 c- B) [+ v7 ?( E& y0 p
- }
. q8 A% ~, r, t4 A+ t/ K - printf("\nNew parameters: \n");$ e% G1 ]; @3 v1 e$ a. E5 T' l
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);- ?. \! o8 K5 [# x& M1 h
- printf(" STBID: %s\n", stbid);$ u3 W! W1 I, z$ i3 F3 K; q
4 r! |4 M/ T- @8 S: F* j! Z" O- printf("\nDo you want to change paramemters? (y/N) ");
# ~/ v7 x. E1 ~. x* v2 v - for (;;) {3 j% f w8 ]# y
- c = getchar();
. a( N! ]9 n; O: y0 L; D; i' f - if (c == 'y' || c == 'Y')
9 S" z2 K# w% {1 x1 E" H - break;
2 m- }% ]! k5 U" t - if (c == 'n' || c == 'N') {/ x! ?5 L. K5 k% C
- printf("\nAborted.\n");5 d: W/ d& b1 j: O) u9 V
- return 1;# O1 B0 L3 Z+ X( m
- }" P2 T' S. | ~! u: V& V3 M
- }
, A0 m- B- z+ z0 S( U - if (writeparam(mac, stbid) == 0) # S9 o" l7 y/ x* P2 N$ x( Q
- printf("Parameters changed.\n");" K& M( i: v. e% D
- V6 D9 v: |& y1 u7 y6 k& t
- return 0;8 ~' R6 E1 m& z4 e" Y* E
- }
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