本帖最后由 0522 于 2012-3-21 23:04 编辑 ) Z5 @+ `: i+ C
: j0 V# M! q: w0 n修改的代码早有了。到今天不会编译。
. K3 l4 _: k$ l' l需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>+ v+ x2 d; f2 e3 c4 F2 |: d b$ o
- #include <malloc.h>- ]% r1 S$ h3 O$ G
- #include <sys/types.h>
8 _) ~! i6 z$ Q- `) ?/ } - #include <sys/stat.h>- C& t/ P6 G3 Y# m3 }
- #include <sys/ioctl.h>& i# A1 [5 h: S
- #include <stdio.h>
- n) K! l1 l {( N7 s* O3 | - #include <string.h>% k, L |" N8 n5 u% {5 O# t
- t" L' l( ?$ A* [; l, U, S- typedef struct {- U8 ?9 f& C( f' u% f5 f
- unsigned int e2prom_cmd_sub_addr;6 z3 y, f' `0 c6 W P
- unsigned int sub_addr_count;
" `: R1 ~6 |) |3 R: A0 s - unsigned char* e2prom_cmd_data;
, I; h$ ]% k7 N3 h - unsigned int data_count;: j7 N! T, S; [) F7 d2 ~1 O2 a, t
- } e2prom_s_cmd;& u" l* b& O# Q( g$ o' v' \
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- #define E2PROM_CMD_READ 1
/ y, Y w; s8 T - #define E2PROM_CMD_WRITE 2" ?5 g2 {+ e' i a8 n& \3 {3 W
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16" H I% G; j' `
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- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;+ o+ h- W+ |2 d! s
- e2prom_s_cmd arg;
" m! V6 m- F% k' Q: q l8 { - unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
2 b% @) G3 K5 S( j7 o - if (fd < 0) {. P% [8 z8 [$ k. c1 j. D: W
- printf("Device %s open error.\n", E2PROM_DEVICE);, e* A' o. c2 z- U; [; |0 `+ O& R, D
- return -1;
. W& O+ {' g6 x; L3 m# A - }
4 o9 g+ T- v2 B% |- Q# d - arg.sub_addr_count = 2;
9 o ~0 }; \% I! {( j6 S0 n( | - arg.data_count = 0x18;
* c8 g) i4 i- P. v1 \2 e0 f - arg.e2prom_cmd_sub_addr = 0x290;
% U, V- I5 L9 D# V - arg.e2prom_cmd_data = buf;) R6 N' s4 ^( ]; [$ ?/ e/ }7 M; M" @
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
3 i) ]9 E& o) B* Q3 v4 V' u2 e - if (ret != 0) {8 O6 ]2 a0 ^+ |- F
- printf("Device %s read error.\n", E2PROM_DEVICE);7 j) [' B7 c8 L
- return -1;' p6 R ` a) M. B
- }& Q* f' K$ s0 W5 q/ R6 I
- memcpy(mac, buf, 6);9 a9 G: _2 @ K$ T
- memcpy(stbid, &buf[6], 18);
3 M$ m* @5 ]# i8 I - stbid[18] = '\0';7 U# X) c3 Y3 i; i
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- return 0;: o: u$ a. C8 l
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;1 @' a/ L; v- I% p
- e2prom_s_cmd arg;7 l7 h. X* W3 c h% }# Q
- unsigned char buf[0x18];2 k: h% b/ z/ v; _5 D7 C! Z
- / G# i; D4 U8 j! L8 c! Q) G/ I5 `
- memcpy(buf, mac, 6); Q9 L1 u/ ?( k! H+ p& d
- memcpy(&buf[6], stbid, 18);1 H2 H" g! d" D. E9 V
- fd = open(E2PROM_DEVICE, O_RDWR);( A# K6 T, L8 m9 {2 q) G3 l
- if (fd < 0) {* @4 G3 I: o! d& Y ?5 {
- printf("Device %s open error.\n", E2PROM_DEVICE);
$ S* c: H8 w; F+ o' X - return -1;
9 J! W7 ?2 I7 c' ~ - }
- V6 |' Z4 x+ K' k) m5 F) e - arg.sub_addr_count = 2;" e# ?5 B# q# u: D& U% | L5 n3 o
- arg.data_count = 0x18;
4 O) ~/ G! d; u" s+ z; F! w - arg.e2prom_cmd_sub_addr = 0x290;
1 Q: h0 l3 n. k- R1 S9 }* M - arg.e2prom_cmd_data = buf;
3 F0 x) W# F! U6 I5 M3 h6 ?* J - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
, e% _4 y) D9 w6 S/ _( W - if (ret != 0) {8 L5 }* n" c0 I7 C% Z
- printf("Device %s write error.\n", E2PROM_DEVICE);
. C0 z2 K& i, Q. Z& G# | - return -1;9 l; p) P6 P: j6 `' o% L
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- return 0;6 ?1 A5 [( J9 G; g2 s+ Z5 J& T7 ?
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# R4 H* A0 ^9 w- d9 O- int main(), v* p; F8 W' O! y! t$ l# @1 z
- {. v4 U) v* s/ ~8 }" d
- char c;" Z' q5 ?; A G8 Q# \) x& a
- int i, macs[6]; c' L7 U& P% `8 s# q. x
- unsigned char mac[6];3 {2 |- S3 P' f$ }" j
- unsigned char stbid[256];% I3 U! `) Y$ y
5 h9 U2 G8 O# }6 v7 X- if (readparam(mac, stbid) < 0)
7 _# _0 ~8 O2 }9 w, E - return 1;
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- k- Q) c6 \1 n4 p: s& ]3 d- printf("Current parameters: \n");
$ K' u( ?7 j8 p7 a5 J - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);% g: q/ X1 S8 X- J% _
- printf(" STBID: %s\n", stbid);
7 ]8 |6 C" N7 z. Q) j6 a -
$ }5 f4 o$ V4 f0 ?9 z: l - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");, x5 |9 I0 b6 @% \% T
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {8 _# f2 d) Y: X/ K* L6 m; D
- printf("Input MAC error\n");$ r6 V1 \+ t3 G+ R! T4 \2 T5 ?& q$ w
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];
4 n9 A8 Z" E% D w- ^ - printf("\nPlease input new STBID: ");( }) _! o" U" x! W- M/ r4 B5 T
- scanf("%s", stbid);
6 s, l3 M7 F" z9 t - if (strlen(stbid) != 18) {4 X2 J; h' }1 d$ r% Y
- printf("Invalid stbid\n");0 Y. ^) W2 z- N2 W* o9 Y5 Z
- return 1;$ V9 j) g" s6 c3 ~
- }
: d. H6 O( n& M$ }; @* o - printf("\nNew parameters: \n");
+ y% c6 L& \9 P7 b - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
3 M, u+ H1 G) K - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
3 Y5 f8 c6 k* c) T; M! ^ - for (;;) {& `* H, {# S3 }* w5 N% P
- c = getchar();3 ]8 E1 e) Q: M
- if (c == 'y' || c == 'Y')
* k4 ~9 l3 r. B" o - break;
9 |# Y& c; G% ?! {9 Y& ?* ~ - if (c == 'n' || c == 'N') {
6 d* d/ ~; l: E2 ]; G; E# V - printf("\nAborted.\n");
* n0 ^" F/ q- u+ \ I+ K2 A - return 1;! j; G% k& H5 Y! a/ N
- }
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- if (writeparam(mac, stbid) == 0)
; L( v) ` p) P1 W - printf("Parameters changed.\n");
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- return 0;
- W4 D' s6 y0 \ E! p - }
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