本帖最后由 0522 于 2012-3-21 23:04 编辑
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3 V6 L# E1 E& q" @! Q3 y% f! P+ O修改的代码早有了。到今天不会编译。) W2 j) P4 S( f# E4 r5 p
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
0 n. d; S2 G$ t2 O5 X) { - #include <malloc.h>6 T! F+ Q6 l3 g. l$ ~* \& S, T
- #include <sys/types.h>
8 O* p7 G9 y G/ T# P3 d, o5 t& v1 z - #include <sys/stat.h>& Q4 P/ m w8 ?7 M9 [3 X
- #include <sys/ioctl.h>
% E2 y3 Y0 X% O$ k - #include <stdio.h>; _# H3 ?1 n5 ~% v
- #include <string.h>
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- typedef struct {
4 x" {: }- K* z - unsigned int e2prom_cmd_sub_addr;
* f5 A( L& }1 F+ v; {: |8 F - unsigned int sub_addr_count;' P% F4 ~9 D" {; k7 C
- unsigned char* e2prom_cmd_data;
5 K+ H4 n8 A- s+ B! Q - unsigned int data_count;- S! z6 X: E9 w% \7 h. g2 w% l
- } e2prom_s_cmd;5 x+ S. o( X, \
& O* e. R8 g% g3 B- #define E2PROM_CMD_READ 1 r2 k5 N2 [( ?+ U) X" c7 k$ D' M
- #define E2PROM_CMD_WRITE 2( P: \9 K' n/ ]: ]
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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: l5 J/ e/ W" e6 W# F- static int readparam(unsigned char *mac, unsigned char *stbid)- |7 S9 S# U/ v2 k/ l9 N+ N
- {
" @3 o) l1 [4 M6 ?# z1 M' H - int fd, ret;
4 C0 C! G# k* O- ^! S - e2prom_s_cmd arg;
- s! Y% M5 W$ _& Y [) ] - unsigned char buf[0x18];) e7 d/ |! [4 v2 \$ m
+ y# ~+ K) j" g3 u* L$ R! R; K* O+ u- fd = open(E2PROM_DEVICE, O_RDWR);
+ i4 M- x0 C/ s/ R9 y- ^! o( w - if (fd < 0) {5 m7 s9 t4 G/ R% Q& \
- printf("Device %s open error.\n", E2PROM_DEVICE);
; }# K- ?! @1 X; c6 V# |: p - return -1;
6 R9 q7 r+ R1 j! U( L - }
( Z$ Y- R# b- W9 { - arg.sub_addr_count = 2;& S; y" u( n/ ^+ P9 P
- arg.data_count = 0x18;
8 G- r: P: T5 ~ I - arg.e2prom_cmd_sub_addr = 0x290; e9 r2 P p0 C
- arg.e2prom_cmd_data = buf;
0 D" E, D! E; r! C. v - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
# Z1 e+ w: r4 Q/ U# Z! i* X; I [ - if (ret != 0) {) \' k6 ^# n. W
- printf("Device %s read error.\n", E2PROM_DEVICE);. W7 Y5 C& k. E2 u
- return -1;
' ~. S' F+ Q1 v$ M8 l- J5 W" [ - }
2 j! L# l% j) X - memcpy(mac, buf, 6);
9 y$ i1 {3 g& \( t, P - memcpy(stbid, &buf[6], 18);* U8 r2 P& H G J, S
- stbid[18] = '\0';. n$ {/ G J! u! f1 k
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- return 0;
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- 3 N- v7 i* u) @! Q% }
- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
9 C* _4 z) ~% g9 m9 ? - e2prom_s_cmd arg;
: @0 Q5 {+ _( n4 t6 b2 ]# A, N6 T - unsigned char buf[0x18];3 _( M. i3 t1 L4 X
- ; x8 |+ c2 A% v( W! k
- memcpy(buf, mac, 6);# o3 e0 q; @& h* Q
- memcpy(&buf[6], stbid, 18);
! D' k6 k- g* Z! h5 R - fd = open(E2PROM_DEVICE, O_RDWR);
6 G' }- t p+ ?/ b a - if (fd < 0) {
& w3 M" ?2 Z: h5 P5 o/ r1 o - printf("Device %s open error.\n", E2PROM_DEVICE);5 n2 |, |+ g1 Q& o7 s
- return -1;, v0 f5 @! C( V
- }
$ t% O1 w8 G8 ` g# ]0 e" ] - arg.sub_addr_count = 2;4 g/ t4 f* i. \% E O5 j
- arg.data_count = 0x18;/ K/ h. Q) S; K3 A0 q, h# A
- arg.e2prom_cmd_sub_addr = 0x290;5 y$ F( \: h5 F/ I$ m/ ~ x; n9 C
- arg.e2prom_cmd_data = buf;% R: m/ N: m! Y' K# F2 C
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
0 n1 e% Z% H; x% P7 ^* U# p - if (ret != 0) {5 L7 T& v9 g' t+ R+ a/ O4 k
- printf("Device %s write error.\n", E2PROM_DEVICE);' f- @4 l. Y$ W- t
- return -1;& X `; u' s/ W+ I1 G& D
- }
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- return 0;% x0 E4 k7 B2 k C5 O Q" P
- }
% {# g8 x& k/ ~6 f
# n! q( J) O3 |4 ^: \2 \- int main()- M5 ~& i* |4 w6 a# }' ^
- {! _9 F' L7 O$ ?
- char c;
. x/ ^% h5 i; w' E; u- S8 i3 S, `0 c - int i, macs[6];% N: x- s$ f: Y3 n( P' k) j
- unsigned char mac[6];& h) f, x! ]+ c7 L) ~
- unsigned char stbid[256];! Q) E: x7 d7 D3 ^6 Q; |
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- if (readparam(mac, stbid) < 0)
S1 R- v1 ~6 X/ |1 b. m) k+ U/ l - return 1;9 d" \6 i2 L$ z u
9 [. J9 V1 _- T- printf("Current parameters: \n");
! b( P% o, \. D8 D4 \7 u - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
1 [6 J- B! \* B' X - printf(" STBID: %s\n", stbid);, W! W$ q+ v0 o* _
- / i' O2 i/ v8 @8 ~
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
# M8 s# u* m0 \ - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {! u% f6 I- Q9 N2 Z; A" {6 |* G
- printf("Input MAC error\n");# \! W% O: m2 M5 `. A' M
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];$ z- b! U( t! T" Z7 V: B' ~
- printf("\nPlease input new STBID: ");9 w J' A$ V* b1 f# @9 @2 S
- scanf("%s", stbid);) j% G8 G! R g2 x3 x
- if (strlen(stbid) != 18) {, E7 N* V( {" c& N4 y6 ^+ T5 E
- printf("Invalid stbid\n");
' @1 \; K5 Q/ ?; K' a9 F7 b - return 1;
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- printf("\nNew parameters: \n");
$ z+ n, r* \/ [1 L8 f - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);0 ^) F: d' c$ ~# U
- printf(" STBID: %s\n", stbid);
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+ f, V4 _; O3 D* q* e% ~- printf("\nDo you want to change paramemters? (y/N) ");6 @7 }& M2 {5 H" G6 c
- for (;;) {; R! g5 H; o4 i, C$ d6 u1 m0 D
- c = getchar();
- q9 o G) s0 `& o - if (c == 'y' || c == 'Y')
: ?5 b$ O6 B Z3 D - break;4 }# H' w( z4 R- O* v5 x/ L
- if (c == 'n' || c == 'N') {7 P" j F8 {8 ]# S
- printf("\nAborted.\n");
. U8 L% R8 \7 r4 T4 @. b - return 1;
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- }
1 j" ?* r# w: Q2 u. _ - if (writeparam(mac, stbid) == 0)
( p( E5 a6 S$ l0 x - printf("Parameters changed.\n");
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- return 0;% |$ D$ q9 V% {4 A
- }
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