本帖最后由 0522 于 2012-3-21 23:04 编辑
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5 Z" h! P/ J2 {2 _7 I修改的代码早有了。到今天不会编译。3 J3 Y H/ w; |. U& p( g
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>7 ?3 ?% y$ @6 ]8 ^
- #include <malloc.h>% U: W0 f4 |' I+ h9 [! C' F
- #include <sys/types.h>
/ }$ o$ D" E: s( W3 r3 O, b" l - #include <sys/stat.h>9 e# l0 d3 A# N6 @' x3 t+ U0 _
- #include <sys/ioctl.h>7 S# D9 p O. Y' z7 P
- #include <stdio.h>
) u8 H; O& s; ~6 _: k6 T - #include <string.h>! D7 ^6 y0 O9 I% b, F0 B$ P
' C+ z2 y4 C8 T9 F3 U! Y- typedef struct {2 V2 x- I% O5 Z, u- v3 {. P
- unsigned int e2prom_cmd_sub_addr;; `# a& F" w0 x
- unsigned int sub_addr_count;
/ l4 z4 l6 V* D/ q6 a6 ]9 q - unsigned char* e2prom_cmd_data;
$ p z' {% Y+ P( Z) {7 P" t - unsigned int data_count;
* q5 }. ?! k5 q% r - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 10 t7 S0 j. N" G- w5 k6 m
- #define E2PROM_CMD_WRITE 2
" N" I& g q5 a; S7 P; v( L - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"6 ^. F% ]! k2 U9 l8 ^- A
7 W z9 B; O9 o, T0 w- static int readparam(unsigned char *mac, unsigned char *stbid)
6 J& o: _+ l9 @' ]: y - {
: J& Q% m4 E, n8 a5 k - int fd, ret;
& j, m# u$ H M - e2prom_s_cmd arg;
( s# k; V- \/ g2 p1 o6 ?) \ - unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
2 m/ G1 R) Y2 G) d/ v- B7 m5 y1 A0 F2 P - if (fd < 0) {
. I( g7 U) ~ U0 C5 l" s - printf("Device %s open error.\n", E2PROM_DEVICE);# G1 b' V6 x9 N: ?% W+ q4 M3 @
- return -1;1 B1 k5 U/ o! O' L' l {
- }( E/ F5 Z% \1 X; e7 V1 ?' Z, L y6 ?
- arg.sub_addr_count = 2;( \! J9 c+ q/ t8 E. o6 A
- arg.data_count = 0x18;
9 Y% v* o K! u - arg.e2prom_cmd_sub_addr = 0x290;
" v' @! C4 f" O; m3 c+ Q$ ]6 _2 p - arg.e2prom_cmd_data = buf;+ ^) L& c' | p8 u( D
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);5 l. o+ I1 }7 U" K& o
- if (ret != 0) {) z* K7 D& `) i8 @
- printf("Device %s read error.\n", E2PROM_DEVICE);
# V+ j/ w6 d" |: k+ c b! G - return -1;
% K3 `" O: t: A' C/ u8 Q. ^* r - }5 K0 S4 ^0 b5 u- y4 S+ J5 t* W& K
- memcpy(mac, buf, 6);
) _+ \2 w: L5 K0 Z - memcpy(stbid, &buf[6], 18);
% O' Y9 H' }7 H' `- P. a& C - stbid[18] = '\0';; t( z/ j/ y' H, n! @
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- return 0;
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* r. ^* x5 [2 g7 X0 L* A2 ]- static int writeparam(unsigned char *mac, unsigned char *stbid)3 ~3 g( U! R4 C+ R" c6 f. F
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- int fd, ret;
: i$ F9 K" ^: G1 X9 O! o7 H& y - e2prom_s_cmd arg;" {8 I" N! Q, j7 w
- unsigned char buf[0x18];
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3 c# ^0 u: w6 e* s, _# y- memcpy(buf, mac, 6);+ V+ k7 ]! ?- h; \
- memcpy(&buf[6], stbid, 18);
2 q6 i; r3 ` l9 ] - fd = open(E2PROM_DEVICE, O_RDWR);
2 r# U% Q8 }5 c, P. \- y" K - if (fd < 0) {
' K" n! N7 h) M - printf("Device %s open error.\n", E2PROM_DEVICE);
7 B9 |7 ^5 b7 U1 c9 `2 w: W - return -1;: i J7 F V5 i6 r/ ?" k
- }( O6 `( U% C7 G7 Y! F
- arg.sub_addr_count = 2;
0 |1 C. J* K2 m( N3 A) n - arg.data_count = 0x18;
* D. E( A) Q1 V& j8 a$ K - arg.e2prom_cmd_sub_addr = 0x290;5 E8 u* a! W+ I( a; D% W6 [4 K
- arg.e2prom_cmd_data = buf;
6 i: L% q! Q, k+ r8 k - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
5 A% G1 G+ h+ y: L5 F - if (ret != 0) {
4 B) k3 V3 N6 p7 j, g/ J - printf("Device %s write error.\n", E2PROM_DEVICE);! o3 a% v! I6 }- |' W6 Z
- return -1;
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- x( H8 A1 Y2 Q- return 0;6 M" R- g; S% i |& ~* J1 q
- }4 b' Y, ^% I$ p/ s A7 {
, j6 M9 C; N9 ~: P2 ]- int main(); a! _7 Y$ o/ a
- {
% p" f5 Y# j; l7 k6 w/ M6 P - char c;
3 ]& A+ u# [. q0 B4 k/ Q+ o* h - int i, macs[6];
; m. o6 ]" a- ^& {1 R, d! h8 I$ N - unsigned char mac[6];2 ?. f9 \( b {
- unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
( N- x. \) O; B7 M- R: v - return 1;/ D. e- B' R7 t4 n+ X5 s4 y
- : S4 h' ^! E8 f$ |7 K5 }& n* m
- printf("Current parameters: \n");
; F% d! M' A; s7 k) S - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
0 O# x# L$ n, r! m& F - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
* d H% Q3 J, S+ H - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
. K. g6 Z& u( K; {/ ^3 V$ ` - printf("Input MAC error\n");
T# C$ a$ \" \ - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];3 O5 w. a6 B3 g/ ~6 v
- printf("\nPlease input new STBID: ");
0 @0 B/ |- e! M4 |! l, a - scanf("%s", stbid);
5 Y, @ J# N( R, M9 @+ F7 V/ _9 s - if (strlen(stbid) != 18) {
2 k+ E7 o2 r' s' I" A - printf("Invalid stbid\n");
4 J# H' R% M3 u# l0 X - return 1;& i$ v1 H; b4 v: x6 c" x
- }
+ u$ c5 @+ S* r2 B2 l8 f - printf("\nNew parameters: \n");
) d' Z+ o- l! @. c* ]% n/ [5 L - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
2 T& `! I7 W6 ]8 r2 F6 T+ I - printf(" STBID: %s\n", stbid);
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8 V$ R5 ? }1 r- printf("\nDo you want to change paramemters? (y/N) ");
8 T" v. h: l& }2 t/ U - for (;;) {
" C, x2 v3 h4 } - c = getchar();- r5 u; o7 \9 j/ f. n, ?& Y. R
- if (c == 'y' || c == 'Y')/ |5 k' z7 i8 i4 [9 e0 z( I6 a% e9 V
- break;
) |4 N- u2 ~1 {# z3 ~4 J4 g - if (c == 'n' || c == 'N') {/ } @$ Q$ I1 s* w& l. I& A
- printf("\nAborted.\n");/ o7 {' m' v8 K; D0 I8 g' O
- return 1;0 q6 Q0 r) L+ H: L) \- }
- }
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9 }* ?- x7 p+ Z* O1 S/ ^2 z - if (writeparam(mac, stbid) == 0) # B2 Q& K9 ` W6 M
- printf("Parameters changed.\n"); ^, p3 A, C1 _
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- return 0;
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