本帖最后由 0522 于 2012-3-21 23:04 编辑 , |( v* Q- U l8 J2 u, r2 o
6 b5 y1 x# i+ e, N修改的代码早有了。到今天不会编译。
7 f5 n4 X2 |1 v( n. _6 Z2 L& }- p1 ?需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>4 d7 t4 O& B" K
- #include <malloc.h> f% [! Q, \* c
- #include <sys/types.h>
* C; P/ \0 @1 U* ]7 D) n+ Y: h - #include <sys/stat.h>
7 G' o% l- o0 k2 y" n+ f' g - #include <sys/ioctl.h>, d& n: m; o+ x Q, M. E6 F
- #include <stdio.h>* T! }- D! @* X% _ ^/ O# u
- #include <string.h>
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; c! y0 c& G. O# j- typedef struct {
: [) B* c6 p C+ S, m6 p - unsigned int e2prom_cmd_sub_addr;. P9 N/ w. S& Q
- unsigned int sub_addr_count;- b9 C2 F5 c6 ]& I
- unsigned char* e2prom_cmd_data;
' W* E& [9 P0 f9 a2 O$ ?: T - unsigned int data_count;
# Q, Y1 c* T' g" j c$ | - } e2prom_s_cmd;
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2 c1 T4 V& P; {* v; v7 s! a- #define E2PROM_CMD_READ 1
6 e7 Z- ?) ?5 d. c& b - #define E2PROM_CMD_WRITE 21 @# o7 M) _8 G- N+ O
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"5 t( H9 c2 m: R$ I: Z* s
- Q3 w% y" \( t- h- static int readparam(unsigned char *mac, unsigned char *stbid)
. l/ I: o+ B( Q2 I6 y" V* E2 O0 A - {
* c2 w+ h5 Z5 Q" I - int fd, ret;
1 |- z9 a3 u$ R) F7 }% ]6 J - e2prom_s_cmd arg;3 D8 V' r8 J% A, U! Y/ }9 X
- unsigned char buf[0x18];
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: p" X, M; B* U. y1 t" Y" _, T- fd = open(E2PROM_DEVICE, O_RDWR);) W, X& M. A1 g% l ?' Q
- if (fd < 0) {2 N1 w! A6 ]0 A! l+ k" m" l
- printf("Device %s open error.\n", E2PROM_DEVICE);+ h" I5 O# u% h, G% j j" q
- return -1;9 X* S# h# ?4 ^; C5 E. V! S+ \5 d$ b
- }
1 A7 I0 y- l6 ^$ m1 B! z - arg.sub_addr_count = 2;
2 @; Y% Z" X; V8 [9 o, { - arg.data_count = 0x18;- \' \$ Q: ~" U+ {
- arg.e2prom_cmd_sub_addr = 0x290;
" z2 O; O C5 t( o: ]8 d - arg.e2prom_cmd_data = buf;
! N; J" |# O. a0 v4 Y3 V - ret = ioctl(fd, E2PROM_CMD_READ, &arg);4 k! w3 R2 k; u" j8 y" l: N
- if (ret != 0) {5 a. `$ Q# k C5 o b0 N" r
- printf("Device %s read error.\n", E2PROM_DEVICE);; R, g6 P. c/ o5 b# R- C5 m
- return -1;
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- memcpy(mac, buf, 6);
% d* a3 t+ ~9 I - memcpy(stbid, &buf[6], 18);# h3 i* Z$ X& f1 Y* t8 c
- stbid[18] = '\0';3 g. ?/ D1 I l
5 y" J- y' T4 @; z- return 0;% o, H9 x g( p d# \
- }, ?% I0 b% ^- G' a; r$ ~
- & e, h0 U/ n+ t) Z$ b
- static int writeparam(unsigned char *mac, unsigned char *stbid)8 I+ S4 r! k" _/ C3 F0 A
- {
% {3 ~. R7 u8 e; P) `# H' E - int fd, ret;2 m0 |( i+ \! O2 ~4 g" ?
- e2prom_s_cmd arg;
9 w+ m5 S. i" w( O0 R - unsigned char buf[0x18];4 Z5 n- L( D8 x# q5 ^6 B3 p
( l$ i6 W( g1 g- memcpy(buf, mac, 6);
9 I) T' [6 r5 q - memcpy(&buf[6], stbid, 18);
" E# O: M: z2 L# i" V - fd = open(E2PROM_DEVICE, O_RDWR);5 T( F" |& ^: h& ]! \! e
- if (fd < 0) {, @# k- A+ L5 }0 r
- printf("Device %s open error.\n", E2PROM_DEVICE);0 x/ L# \ k0 C* h/ i; ~! ]' i
- return -1;
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- arg.sub_addr_count = 2;; y1 ]+ D" C# a( a5 X0 ]: o
- arg.data_count = 0x18;1 B/ U% _8 p6 `) y. b- o' |* Q
- arg.e2prom_cmd_sub_addr = 0x290;: N1 |6 k- q* p6 X: Q# B
- arg.e2prom_cmd_data = buf;. E$ M" Y; I! ^% o3 g
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);/ U- o8 A0 g5 s/ N
- if (ret != 0) {
4 |. g' e/ W) u2 D" ? - printf("Device %s write error.\n", E2PROM_DEVICE);
9 z% ^, o5 ^0 u* O1 _9 h+ i; m9 n - return -1;
+ L' Q5 o* K9 u3 \' i" s8 M - }9 X$ X# Z, k+ u# z5 `" s, f& ?- u A
- # {; v& y$ _6 u7 L3 g. ^+ z$ |
- return 0;1 p1 p8 `4 y$ b3 |
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, S) P8 G: `6 z- \1 l7 ]- int main()4 ^1 i6 K2 D$ @ h9 y
- {
' `$ {% I" Y+ h+ z - char c; c! a: X9 V) D7 ~- @; z4 t% I2 H
- int i, macs[6];, N& N6 s1 N0 Z" H! V5 M, S1 }9 q
- unsigned char mac[6];+ X1 E4 l1 T: j& S0 U. [
- unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
+ Q" Z) I; C. S s' f$ n8 m - return 1;, I+ Q( P6 n5 }' w# q a
3 [ ]: r, s+ b# q M) F- printf("Current parameters: \n");! t/ r8 U5 b; O
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
( V8 W, I% u: B, U: ?+ c - printf(" STBID: %s\n", stbid);' N$ g7 D. \3 W. U! d2 @" p
-
6 H+ A' l( M; Z- j0 e1 I - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
, S' a) o K; d; ^) v8 W5 q0 a+ V - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
# X$ ~: J1 s/ u' a, Z; z- I - printf("Input MAC error\n");
* o9 n4 j0 I3 E/ ] - return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];4 M5 v" E! S2 Z) Q
- printf("\nPlease input new STBID: ");
% u; q) _" n9 W* | - scanf("%s", stbid);
: D. d1 I" O% F - if (strlen(stbid) != 18) {
E$ I% K: D* v& r3 B- E) O6 | - printf("Invalid stbid\n");/ e% {6 i' M7 }3 u* U& F6 F
- return 1;
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- printf("\nNew parameters: \n"); y4 ]; L) h+ ~; v ?& K) q/ R$ d
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);" k. ] U7 o1 f {
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");3 C- D3 H+ d& A" g4 x; i# ?8 H
- for (;;) {
- f9 D8 X1 B1 O4 }; H+ _$ n# y) y - c = getchar();
1 g% J7 d* h% n- o( r - if (c == 'y' || c == 'Y')
: F& ?( E- b) y, y/ U) I) E - break;' f0 l* _. A4 Z/ t* F- W
- if (c == 'n' || c == 'N') {
; N. [ H) w( X2 i - printf("\nAborted.\n");! k4 N6 H" u, D
- return 1;' A' i! U5 W, E; k4 y" Y% ?
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- }
/ H+ n& ^) T Z: q. V - if (writeparam(mac, stbid) == 0) ' a9 K' o- {1 F* Z4 V
- printf("Parameters changed.\n");$ n" v V" E( h0 s0 r
- ' q+ S# w* R+ j
- return 0;
: [1 H4 B, x6 h8 q0 K! Q1 s - }
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