本帖最后由 0522 于 2012-3-21 23:04 编辑 # D! C! k$ C# e4 g+ a
( b7 Y% i7 w, v O) g" M& b修改的代码早有了。到今天不会编译。, P- ?3 K6 V- x$ b" ~! Q% j6 _
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
1 g# M7 v$ H7 ?0 K+ J) Q - #include <malloc.h>' \1 ?- z2 d0 u! K. [' e
- #include <sys/types.h>
( L9 Z( R0 O% K' W - #include <sys/stat.h>
- q9 x) W( x2 G+ m - #include <sys/ioctl.h>
6 C( p" J: j/ A" O, i3 Q) y - #include <stdio.h>
* b$ w; ?6 Z& j: _3 ?1 X5 H! T - #include <string.h>- ^' B& @; g) c: N* {, ^
8 u$ S6 E' _% s- typedef struct {
# y( n+ b/ n5 w' p! _ - unsigned int e2prom_cmd_sub_addr;+ [5 ~1 F3 }. T! s& x. e
- unsigned int sub_addr_count;1 E# ]- m* X6 V3 i# i" E
- unsigned char* e2prom_cmd_data;. C3 `1 W, m4 ~1 C
- unsigned int data_count;
. X" n7 O5 V4 Y$ {% O - } e2prom_s_cmd;
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* r8 m8 g. {: H1 E9 o- #define E2PROM_CMD_READ 12 q" E* L; H2 Q6 t9 I. F# l. V
- #define E2PROM_CMD_WRITE 2
3 M1 R |% f3 @ - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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: B' U U" a8 w+ w- r- static int readparam(unsigned char *mac, unsigned char *stbid)
) R! Y2 M7 s/ c: L. r - {
' @# b) F$ ~, f v1 W - int fd, ret;
( @4 Y$ E! {6 x% w! W+ f, N - e2prom_s_cmd arg;
2 i; K4 A: p4 {; W - unsigned char buf[0x18];6 l2 T+ Y% V/ B! y# W# \3 v
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- fd = open(E2PROM_DEVICE, O_RDWR);
# o9 R% D7 v3 D5 C9 N - if (fd < 0) {
5 C3 _0 j8 [# W) k - printf("Device %s open error.\n", E2PROM_DEVICE);
2 ~$ y1 q' x8 t- |+ u! l - return -1;
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- arg.sub_addr_count = 2;' N* c# t8 [; d& Q
- arg.data_count = 0x18;
' g3 P6 }) G" R. I0 E9 r2 S& E - arg.e2prom_cmd_sub_addr = 0x290;2 M0 P3 `* k( p- u- w; c
- arg.e2prom_cmd_data = buf;) n, ]: f3 z1 r9 X
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);2 c8 d) `' E" C4 E! p3 J
- if (ret != 0) {
" u2 M4 U- ]# G+ D - printf("Device %s read error.\n", E2PROM_DEVICE);3 S% H/ t1 X1 r* r! E8 I
- return -1;
: p8 @; ?0 F/ z$ | - }
3 Y1 u/ }! f* ?8 J( Q9 p - memcpy(mac, buf, 6);+ A( l( | {0 L9 k# m2 v L* p& p
- memcpy(stbid, &buf[6], 18);
) k9 N, d; A) B2 k - stbid[18] = '\0';
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* |1 [7 E: ?7 W& A- return 0;
9 E X* X$ D9 c - }
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! h! U- E/ q5 m: F: h4 O H* P: f- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;8 ^$ d: c" g1 {& u. ~$ J) \: s
- e2prom_s_cmd arg;7 F1 N6 g5 V2 G2 P9 M
- unsigned char buf[0x18];. R. {4 v; }% d" O
, L; {( F& }3 O1 y+ c1 ~- memcpy(buf, mac, 6);
, `/ j# L, d+ |4 T - memcpy(&buf[6], stbid, 18);# {. ^' i6 l) P1 w4 K
- fd = open(E2PROM_DEVICE, O_RDWR);
8 X; V& M, K+ r# g K% }" q - if (fd < 0) {% K! w/ X7 m( ^( G: v$ s) ]6 n
- printf("Device %s open error.\n", E2PROM_DEVICE);/ [5 a* ]) D1 C+ `9 t
- return -1;3 q8 |8 G+ N0 Z3 r( {
- }6 Y. c5 Z; Z) J2 G, d$ E
- arg.sub_addr_count = 2;
8 Z/ o [' d0 P - arg.data_count = 0x18;
: R/ J0 t! S0 T% s v8 u - arg.e2prom_cmd_sub_addr = 0x290;/ d* H3 M: e2 c
- arg.e2prom_cmd_data = buf;% y/ d, y' i! L& p- R% L6 A% @
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
+ n9 K1 m" O! s i& ]2 R7 n - if (ret != 0) {3 |+ K, l+ j$ R1 R' b. g
- printf("Device %s write error.\n", E2PROM_DEVICE);
" p: v$ Q U9 A X! ]$ L( ^ - return -1;1 a; e3 v" \: L1 n! B
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. l) l7 D$ u& Z3 J, N' f. C- return 0;
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- int main()5 S7 N) m6 Z) e. m
- {: y/ ~3 {) Q5 b3 P1 t2 ^) @
- char c;" Z4 c3 h; B% x
- int i, macs[6];
$ C# l$ L8 l+ |0 L7 d - unsigned char mac[6];
0 U$ O& Q/ T! B( C. H - unsigned char stbid[256];2 T# S* D ]( Q' g* o
- 1 u! H' P* D+ N4 n1 O
- if (readparam(mac, stbid) < 0)4 H7 s+ w( L! U1 [7 K( D
- return 1;( P$ o) o4 j% F0 o4 C' q3 \
9 s8 K9 `6 I, z, T% n# g0 e t8 K1 F- printf("Current parameters: \n");
% ] }+ c( R; p1 x - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
; i! Z' K( P. Q" L- K! a8 ~: D - printf(" STBID: %s\n", stbid); f4 {1 N1 K; _- e' t
- ( P- R& H0 T4 ^: L3 K' S; J% c9 ?
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
. G6 D& w; W2 y( v( E - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {/ |. F& H# C. n7 S- l( g% W7 i
- printf("Input MAC error\n");) q$ b; D$ u6 T6 Y# H9 ]- M
- return 1;8 U. |& H4 x) H9 u
- }
6 V1 p6 Y# I- _$ B: ~6 E - for (i=0; i<6; i++)mac[i] = macs[i];$ D4 r. w9 ~8 V9 m. I9 s1 q
- printf("\nPlease input new STBID: ");
# X8 g! p- T& X* b4 }9 Z' U - scanf("%s", stbid);* M; I9 Z2 V' b/ m6 M% ], i
- if (strlen(stbid) != 18) {
1 m! W2 j( R9 f2 C- Z! m" q! w; c: o - printf("Invalid stbid\n");& {, c. A& E7 M/ y+ T- c# T
- return 1;
' i- I( ~% U9 O1 ^' U; y+ ~& ^9 @ - }
6 {7 T8 N( \3 V) u9 [3 N; I2 L - printf("\nNew parameters: \n");. M% u! d2 S+ \8 L C2 N
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);3 l# n. I6 r- m
- printf(" STBID: %s\n", stbid);- p0 I1 }6 c6 `2 a' C \) i4 Z
: G2 v: X3 A& f1 w- printf("\nDo you want to change paramemters? (y/N) ");
* o+ b1 e8 U! }# j" Z* B& r - for (;;) {
4 g( f$ b6 _! n1 w - c = getchar();
5 N5 |4 v5 {8 e9 t$ s - if (c == 'y' || c == 'Y')" U; Z' i$ Z. S: s0 `
- break;
+ T U& f! X# \( S; a, W3 i9 H - if (c == 'n' || c == 'N') {. M; H+ x9 R4 V* H
- printf("\nAborted.\n");, t, k* b8 ?& M8 p6 H$ T, z" g
- return 1;
+ Z5 G! O4 Y4 j - }
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- if (writeparam(mac, stbid) == 0) , p+ O- L1 d# J7 D
- printf("Parameters changed.\n");
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- return 0;
7 L" r! a2 F! o% z C. j - }
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