本帖最后由 0522 于 2012-3-21 23:04 编辑
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" Y+ z1 l5 M, Y修改的代码早有了。到今天不会编译。/ ]5 G# ~$ X: E, ^0 F" J
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>$ S0 X' k1 v6 ]- I7 ^! d& _4 U
- #include <malloc.h>
( f4 o; ] _3 e/ H - #include <sys/types.h>
3 \( a- X0 {0 D( Q" e p - #include <sys/stat.h>
0 s9 V6 j: F0 s N/ q) v - #include <sys/ioctl.h>- R6 G$ W& T, ~4 |& \6 H/ r- x+ @
- #include <stdio.h>- l/ [; {! N& w( J
- #include <string.h>) c$ J8 O+ ~# k+ n' j
- 4 q. A6 j# g. f: l: v* O
- typedef struct {
- ~8 S' z1 g2 I |! Y0 l- u8 w - unsigned int e2prom_cmd_sub_addr;
9 [6 K8 r6 U2 W( ~" F - unsigned int sub_addr_count;) w" u% w" l! e( c* ?
- unsigned char* e2prom_cmd_data;
c/ b4 t, r& z6 d - unsigned int data_count;% V8 g* p5 }9 w# h; {) \
- } e2prom_s_cmd;/ Z# A- ^, ^! H4 q9 T( h. O ]3 N% L
+ \ I& p, Y% ]" i7 }$ K1 N E- #define E2PROM_CMD_READ 1
; m& B& u, j: z# C - #define E2PROM_CMD_WRITE 2
, ]" h4 l2 Y! g$ ^% u - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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9 x3 w4 L0 @" F- static int readparam(unsigned char *mac, unsigned char *stbid)
' _7 d0 c" Y) O: Z4 L5 S - {
9 E" a( E0 B. z. M t: ?* L" y - int fd, ret;: s3 x0 N: S: W8 y" L# L" X. S# e
- e2prom_s_cmd arg;# f* X) q( x. y! r
- unsigned char buf[0x18];
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0 {* d$ \" Q* q$ C- fd = open(E2PROM_DEVICE, O_RDWR);
. p2 r3 E+ Y$ U! y5 @9 ]/ C - if (fd < 0) {: v; G: K2 F9 l/ b# b
- printf("Device %s open error.\n", E2PROM_DEVICE);6 k6 Y* d+ o" q) C% v3 [ v
- return -1;% p- Y0 b+ q8 F% T' o) B
- }3 X; D& E- t; f2 v, t
- arg.sub_addr_count = 2;2 g1 b) ~; l& ?0 l8 h: |+ n4 d! d' i
- arg.data_count = 0x18;
" D u4 Q1 }0 D9 N% ^ - arg.e2prom_cmd_sub_addr = 0x290;
3 Y; K$ }3 `6 L' W - arg.e2prom_cmd_data = buf;" E3 h* g ~( t6 s ~# Q
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
7 I& f b3 F5 G9 F9 B - if (ret != 0) {
. U- N- i5 p7 F - printf("Device %s read error.\n", E2PROM_DEVICE);! L4 B5 ?) U+ [1 F( u
- return -1;
( h$ V& s$ i" r4 x" n - }! t8 z3 d1 k! j! C7 Z) z- |' }
- memcpy(mac, buf, 6);
8 s7 w" d, q7 D& m8 S - memcpy(stbid, &buf[6], 18);
; u; _. g9 h; B* O5 ^: u - stbid[18] = '\0';
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- return 0;$ Q5 Q7 M. L ~+ c; W
- }
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/ D2 v" @; V* L- static int writeparam(unsigned char *mac, unsigned char *stbid)% c+ u& C" s0 n6 z% S
- {
# M/ Y' P# j6 K; k - int fd, ret;( {, Q. d. w; N6 E
- e2prom_s_cmd arg;6 { ^% v7 W! H
- unsigned char buf[0x18];0 O5 N' {- H# r
1 v$ ^# N5 ~" y- memcpy(buf, mac, 6);
/ i2 E* c0 m3 s# o' {7 J - memcpy(&buf[6], stbid, 18);
- _; _/ V+ B" I$ F- Q8 v - fd = open(E2PROM_DEVICE, O_RDWR);
' {, ~! E! f5 R* g. n - if (fd < 0) {
0 X1 p6 v6 K7 H - printf("Device %s open error.\n", E2PROM_DEVICE);# a; e. n8 e0 k7 c q
- return -1;
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- arg.sub_addr_count = 2;6 u& e; \) X+ B& N
- arg.data_count = 0x18;/ U" j2 n$ B; q" X8 L
- arg.e2prom_cmd_sub_addr = 0x290;
# k4 N$ U J9 ]+ f6 [" F+ K - arg.e2prom_cmd_data = buf;
3 p0 n' w8 y+ q: y/ n - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
0 E3 L" y0 }9 h% B1 f0 l& W - if (ret != 0) {
) n' v5 @3 W% L) j3 P - printf("Device %s write error.\n", E2PROM_DEVICE);
- `4 n0 f. \% o- F& q - return -1;0 b8 m6 z' m/ @% K4 J
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s! r/ _$ ?+ o U7 _3 ^% m$ F- return 0;
1 q/ U \7 H0 A# t8 `( ?5 p2 ^ - }
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- int main()) g( A. D$ E! [
- {
( `5 b: [8 v& F0 s* N0 o4 Y - char c;
. }2 h+ l( e- ~: x% |! D1 A9 R - int i, macs[6];; e3 o& \- I1 l- X8 y) }2 D, n' [
- unsigned char mac[6];5 K( i( s: s6 y, }% F" {+ m5 P
- unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)" o2 | ]& X- [
- return 1;
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2 L) {0 X O' V9 b4 H, Y2 @2 x- printf("Current parameters: \n");3 |- C X* |8 e" F3 n" ^
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
' M, \: `' E8 ^; K, K' A - printf(" STBID: %s\n", stbid);$ \4 o: Y0 b+ n
-
. \. V& n9 P! u7 } X - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");/ W/ }4 b+ }% v" c# n5 h3 ?
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {$ _* @7 j# B7 V3 T ]) V) J
- printf("Input MAC error\n");
, M! g; z* s9 x: C - return 1;4 E+ o9 z1 X& v2 Z, C
- }& _* z, O) u5 A; \7 V+ k
- for (i=0; i<6; i++)mac[i] = macs[i];, v* U1 Q3 P3 U+ U8 W
- printf("\nPlease input new STBID: ");
& P$ B1 ~- k- v; U0 n/ j - scanf("%s", stbid);
9 q; w- }, U3 h7 D3 _7 ^! _ - if (strlen(stbid) != 18) {0 e2 M5 o w# T! {2 e6 L9 R7 O) z
- printf("Invalid stbid\n");
$ |- [0 }& N0 Y& ?# l9 ?1 c! B+ s - return 1;
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, Q9 `) e, k) P9 m2 I+ t) C* V - printf("\nNew parameters: \n");
; f0 A6 X" a# z( V" J - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);4 ]: d( a5 |" {1 P, t2 C# v
- printf(" STBID: %s\n", stbid);
- ]' g, B) q |- f: P0 R( ?; d4 j - ( B) Y: {. O O1 N6 L' }" x" _
- printf("\nDo you want to change paramemters? (y/N) ");+ t# x) G, @& G4 R5 a9 ?+ E# H
- for (;;) {
/ m+ Y7 F; W# M% C* ` - c = getchar();
$ p; l. M6 {9 a3 g! t3 r2 b - if (c == 'y' || c == 'Y')
. [% e) m1 ~4 v2 Y, q - break;2 Q! y, L* H- G- `# z
- if (c == 'n' || c == 'N') {; q4 u8 P2 C' A5 l
- printf("\nAborted.\n");
* @6 G L6 V3 ?# e$ o7 | - return 1;) ^6 N Z" b% J) D
- }. @7 v S% P0 S( w
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- if (writeparam(mac, stbid) == 0)
4 t) q2 k* D( s b0 Z( B - printf("Parameters changed.\n");
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- return 0;
8 J8 s8 L" h2 w+ }6 q - }
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