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 u3 v' a, y需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>* Z+ [) I3 H" H$ I- o( I4 E8 b0 e
- #include <malloc.h>
, h% D: }* K) `/ I - #include <sys/types.h>1 ?, c1 _+ ^8 L' T7 p7 f X) W1 z
- #include <sys/stat.h>
' \9 t$ R; @9 l! ?9 ?0 m, W - #include <sys/ioctl.h>
_2 Y" ?& @0 |5 C - #include <stdio.h>* u% ^2 Q7 y% R3 L3 J
- #include <string.h>
# i6 |- U% s! T - . |: @# U+ ?2 r3 r2 Y! G0 L
- typedef struct {2 S# W# L4 u$ M3 _3 V8 Y/ ^
- unsigned int e2prom_cmd_sub_addr;0 ~3 B0 n* N/ w
- unsigned int sub_addr_count;
! I' @ q3 t0 c1 Q - unsigned char* e2prom_cmd_data;
* S, V( g3 ]# ?, N7 S2 q, S4 g" K7 Q - unsigned int data_count;
( y5 g* r: O9 I h& p6 j0 E- m - } e2prom_s_cmd;) Z" {) q+ w$ _# X7 X& z; h- V+ F
- * } T/ K8 _2 F- l
- #define E2PROM_CMD_READ 1
* E( ^& o$ I' @) Z" s3 ?, z4 z - #define E2PROM_CMD_WRITE 2
9 n4 ]1 W) u5 t3 v' v - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- j5 h7 p* n, M) T; l+ f* A- static int readparam(unsigned char *mac, unsigned char *stbid)! E7 Z' ^. K$ H5 C
- {
2 G0 ^! m4 F+ [; _! \" q8 G- S1 j - int fd, ret;) a- _3 _8 J9 E
- e2prom_s_cmd arg;% N1 O ?( n9 \5 k- ?) F
- unsigned char buf[0x18];
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4 c% k" F3 N1 V( _' r- fd = open(E2PROM_DEVICE, O_RDWR);
# t* B) k* w5 u5 j$ R( j - if (fd < 0) {2 V1 r$ Q3 {4 B3 X* y/ u' f, F, p$ |
- printf("Device %s open error.\n", E2PROM_DEVICE);4 P8 [' z( d* a/ l8 I
- return -1;4 K- h* Q4 N: j5 C8 e! ]
- }
! G6 l' Y5 o7 { - arg.sub_addr_count = 2;! [8 m+ P6 @5 i2 O8 u; a3 d1 A
- arg.data_count = 0x18;
0 M0 U3 @# W/ c2 B- z. v - arg.e2prom_cmd_sub_addr = 0x290;
0 \ x' t2 r C+ w% u5 R- {' } - arg.e2prom_cmd_data = buf;
/ C) o& X( Y0 _) n9 A - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
' S `3 m* e+ h1 w" W8 c% R. _7 k - if (ret != 0) {; q# b4 o/ D* a6 l: ^ J. i
- printf("Device %s read error.\n", E2PROM_DEVICE);7 F$ z3 s ^! {. G8 U* ~" A
- return -1;
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- memcpy(mac, buf, 6);
: j- o4 ]- A& C$ {1 Z - memcpy(stbid, &buf[6], 18);
) D7 \4 f$ r: G4 W z, p: z - stbid[18] = '\0';+ k$ V2 m" l2 s, h! y
6 D" h) R7 g/ L9 S4 p- return 0;
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- 8 C1 l7 l9 E# _6 ^3 R4 |
- static int writeparam(unsigned char *mac, unsigned char *stbid)5 G3 M/ q; A1 f! M3 `
- {
8 ]7 f* M) ^8 m - int fd, ret;, f' ?, e( M- s4 R
- e2prom_s_cmd arg;3 _+ m3 F. s; q8 a" R3 `! m
- unsigned char buf[0x18];7 z9 G/ Y- r. P. }6 B
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- memcpy(buf, mac, 6);
& V+ I6 Q* w8 f - memcpy(&buf[6], stbid, 18);" U8 g$ w4 i7 M2 H
- fd = open(E2PROM_DEVICE, O_RDWR);
) }9 m2 ?* ^" b0 G0 R - if (fd < 0) {
+ Y9 ~3 {# L4 }! v; p& N - printf("Device %s open error.\n", E2PROM_DEVICE);$ Y0 A6 O* z3 H, } h% b9 j
- return -1;
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- arg.sub_addr_count = 2;
+ N; c0 N) p" M9 k1 ^# N - arg.data_count = 0x18;) I- _; e( B6 n# ^0 M3 x6 p
- arg.e2prom_cmd_sub_addr = 0x290;
6 m2 p' P+ _/ d% b- ^: Q6 O4 Q - arg.e2prom_cmd_data = buf;
5 S- O1 s, w. i; t" `0 d) \5 ^0 V - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);: d5 Z3 Z$ a( B
- if (ret != 0) {
0 k& G3 I0 D/ \8 t/ C+ K7 C- _+ Y, h" i - printf("Device %s write error.\n", E2PROM_DEVICE);; f* h5 \+ |) [
- return -1;
+ @: { D5 p' F* v) z x - }
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- return 0;
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& G1 t! L3 d9 S0 a/ B- int main()
7 K8 N8 \& {. B - {
9 X a6 `# L, l! Q4 ^' l9 i- Q - char c;
# H- P: T+ | |9 R L - int i, macs[6];
; a# O! [' C" J7 P' z- k - unsigned char mac[6];
. @/ `3 E' H5 b - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
2 O" d/ X. ^: X' [ k+ F7 E6 g) b - return 1;
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- printf("Current parameters: \n");5 k& \0 ~; w/ ~7 y7 L) k2 T
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);( C8 e; h9 \ g* W5 s% S) v! b' l
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");3 y" Y& p# }- d$ Y$ j& i
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
+ O. ~. R0 d6 N- w z - printf("Input MAC error\n");
) F1 ^0 s+ o' Z3 A) S - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];( N+ J9 u0 O2 `) c4 z
- printf("\nPlease input new STBID: ");% Y( w( a, {. \& j+ N: |
- scanf("%s", stbid); p' t% }2 @; t/ V1 ]0 P
- if (strlen(stbid) != 18) {5 j5 b/ o: ^7 s3 e/ s- L! v& G* _
- printf("Invalid stbid\n");
5 H/ h+ H& P3 ~6 C. G) P X - return 1;# g" z* l9 P. ^, b; z2 Z [; j1 w
- }
( ~4 B+ ]9 P0 J: l7 N Q - printf("\nNew parameters: \n");* ~- E$ p1 [) y* g/ a& J& j+ C8 g
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);/ n. [& }4 b- \: r. b; X6 x& U( c4 R
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
/ N Z/ j, e; A1 Z J - for (;;) {$ @ g/ C! B1 Y' m' _# C, I
- c = getchar();* k# ]" T9 Y2 z. ]
- if (c == 'y' || c == 'Y')
/ `9 M* W% |: U) N& l - break;
8 |) ?- e/ g w- \, k, Y! k - if (c == 'n' || c == 'N') {& l* @1 u8 n# p* e$ f
- printf("\nAborted.\n");
# [# o; R: n" p4 L8 E3 l9 J% N" W9 K - return 1;
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- }
3 m- k6 {5 T$ o- } X - if (writeparam(mac, stbid) == 0) & [7 z; x! ?- C1 c
- printf("Parameters changed.\n");
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: C1 x" R) n* s- return 0;
5 D x9 M- D& b1 l O - }
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