本帖最后由 0522 于 2012-3-21 23:04 编辑
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" X0 |9 `; d* l) n2 n6 [修改的代码早有了。到今天不会编译。. ^/ o @' F7 {: O: A4 T
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
9 v* a4 t& D3 M - #include <malloc.h>
$ C: o; Z l$ a% h. U2 ]. Q - #include <sys/types.h>
s! K- ?' B: M# x+ h8 A - #include <sys/stat.h>
+ ~8 ?- K! Z2 U$ d. X - #include <sys/ioctl.h>! p9 ^- I+ {, E0 q( C: c A
- #include <stdio.h>& X% y1 V R4 [
- #include <string.h>
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8 f" \ G& ?$ h, ]) c* \6 q- typedef struct {
4 w; \* D; E+ N4 B3 G - unsigned int e2prom_cmd_sub_addr;
, N, r, s( L' F9 W - unsigned int sub_addr_count; ]7 o" R* U/ U6 W' @9 C3 I5 M! S; d2 P
- unsigned char* e2prom_cmd_data;
- ]" k# H; B, Y% }: C% i! | - unsigned int data_count;4 ] a" G7 k8 I+ ]; d1 ]" t
- } e2prom_s_cmd;. D, r& w( m- s7 ]' a" A
: K$ J6 v( ~/ P3 j, k- K- #define E2PROM_CMD_READ 1& ^0 m! P1 k) s5 V
- #define E2PROM_CMD_WRITE 2
. J" Z2 M7 ~7 K: W& D - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16" B, P2 p! s% a% k. G' G; R# e3 z) J
! l, S$ T& s5 v5 _1 U: T% z( B- static int readparam(unsigned char *mac, unsigned char *stbid)6 \: t+ ?- E) @5 Z& ]$ B: p
- {
. G$ O5 f4 u( I0 W+ G - int fd, ret;
6 h: w7 C# L& {0 k/ l0 C - e2prom_s_cmd arg;
$ y# `& e' U) p1 F8 [" P - unsigned char buf[0x18];
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/ W: ~8 v7 X2 }. ]. }- fd = open(E2PROM_DEVICE, O_RDWR);- x6 H1 u: Y7 x# h% N& E) k c& Z
- if (fd < 0) {
) P) ^ r8 G- _9 @ - printf("Device %s open error.\n", E2PROM_DEVICE);
1 [8 ^7 y3 H" B: M# ]9 C2 s - return -1;- H, B; I7 E. {; n' m6 w! O
- }
f, ^, K0 {; U: I - arg.sub_addr_count = 2;( v1 W" o7 D! F
- arg.data_count = 0x18;% c/ g- |' l2 I7 G# I
- arg.e2prom_cmd_sub_addr = 0x290;1 B9 ]5 M0 ~& t- ?* U: ?& n
- arg.e2prom_cmd_data = buf;) C* r: |! v$ N$ U; I; e
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
+ ]; v: D8 r, R6 O+ u- z1 y - if (ret != 0) {& O' |9 p. x7 z8 _2 a: s3 |- i
- printf("Device %s read error.\n", E2PROM_DEVICE);
0 }& @+ s" Y; f9 v6 A2 T1 {5 C3 @ - return -1;+ I N% z& S0 W1 r) x
- }% ]4 @/ t/ z7 p2 U, Y
- memcpy(mac, buf, 6);
' |9 t+ g% c" D- s0 c6 i. L x- P - memcpy(stbid, &buf[6], 18);% P8 f0 J; V! S, v3 h% n
- stbid[18] = '\0';' y+ ~% Y9 T3 R# F4 S; v. O
- A; k$ h. Y# C$ @! K( [+ ?5 Q2 }- return 0;3 p, A/ S/ ], M
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
- B* V, z6 ^+ G8 D7 A8 {8 f - {/ B' |* Y2 }5 D5 \/ b
- int fd, ret;
: }# k) v, P4 N" J* T+ P1 x& V - e2prom_s_cmd arg;
% u- d) B7 [2 P5 j F5 ?0 b - unsigned char buf[0x18];
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+ N5 @" o J @8 d+ O- memcpy(buf, mac, 6);, a2 _$ H5 d9 L2 n1 h2 ? s
- memcpy(&buf[6], stbid, 18);3 ~( E2 r! h) _$ Z7 C3 |
- fd = open(E2PROM_DEVICE, O_RDWR);
3 c* h: s9 _/ [- W - if (fd < 0) {, K0 k; f- I! k, \) E: T6 _8 m
- printf("Device %s open error.\n", E2PROM_DEVICE);( c1 X4 g2 [4 S ?# x% e2 f$ Z
- return -1;
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- arg.sub_addr_count = 2;- O4 ^( ^/ e. r" b0 X" C% W8 G
- arg.data_count = 0x18;& G9 y. n1 D& F+ m7 J
- arg.e2prom_cmd_sub_addr = 0x290;8 W9 _* o. X, G2 y3 \, \- `8 t
- arg.e2prom_cmd_data = buf;
+ r( j0 M# ?- M/ Z7 h" W - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
+ p* d4 W* u9 B. R f6 ^( P9 w - if (ret != 0) {
: z4 }/ S0 t0 N% e! y - printf("Device %s write error.\n", E2PROM_DEVICE);% E1 h2 m. |, Z: h
- return -1;1 g! J" k' ^4 c
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- return 0;
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% j0 w# H( m8 p. O- int main()# K \1 G+ v/ Z% D2 {& U6 }
- {
# B+ `& C9 J5 Q- I6 |& i* p - char c;
, B+ s+ A) B9 g6 l0 z9 D. X - int i, macs[6];
) _# }# `% y/ I" \ - unsigned char mac[6];) I$ E9 `7 D; U3 |" m- A/ g( g7 g
- unsigned char stbid[256];
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) t0 ~- a9 `8 n# l- if (readparam(mac, stbid) < 0)3 I, Q; M4 W& y6 G% ~3 _
- return 1;
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# `5 G& [! s5 ~' h8 x- printf("Current parameters: \n");) j# G* `9 A9 D7 z
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
& [' T* r. D0 s - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");5 C( R, g" g. l+ p9 y3 b
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {: P& \ q+ F* [* w
- printf("Input MAC error\n");
0 ^# d" S+ b: _0 [# u$ B - return 1;
' H+ k8 I t3 N: k' w - }
! {. z. l7 w" q; ^" P9 g8 r: X" ^# z* v - for (i=0; i<6; i++)mac[i] = macs[i];6 ] w; o* @& a G/ v4 s( w6 `
- printf("\nPlease input new STBID: ");, p$ W0 ~% o# x' P
- scanf("%s", stbid);, [* E& K0 n2 B5 I4 C
- if (strlen(stbid) != 18) {! |" k. i5 q" L: t U* m7 I
- printf("Invalid stbid\n");
$ |& `( C! |" E: c' U - return 1;% q8 ~8 f0 N- F$ r
- }
$ o" ~5 f% z4 k9 U9 Z/ j- H - printf("\nNew parameters: \n");" @: d# P0 S& N2 {, }" W+ X
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);, Y+ n9 M# S _1 C+ B4 E/ \
- printf(" STBID: %s\n", stbid);$ U3 Y- E3 |1 W+ J2 Y% ~
- 5 ^ d4 Q$ ~2 j
- printf("\nDo you want to change paramemters? (y/N) ");6 W+ |! z+ w9 k* G# d7 y5 `& V
- for (;;) {. o. h6 E2 l4 q' n/ B' U
- c = getchar();
+ a* p1 ]3 E1 Z/ d/ u - if (c == 'y' || c == 'Y')
% f/ [" O6 E' P% {6 p- Z" ^ - break;
0 E! E$ \ c' h c& h - if (c == 'n' || c == 'N') {
) z! o: \+ ^3 v6 a - printf("\nAborted.\n");. R2 R) J4 ^, [" l- `9 ^3 A! C6 h
- return 1;
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- }
& Q9 k. a$ _; {/ I! j/ b( B2 ^ - if (writeparam(mac, stbid) == 0) & t7 K, { I/ A0 H
- printf("Parameters changed.\n");
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1 H5 h" d5 \' J# C& U9 E- return 0;9 g9 B+ Q4 \0 [0 [& |) T
- }
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