本帖最后由 0522 于 2012-3-21 23:04 编辑 4 ^2 E9 z0 y/ z8 q7 Q, n. {
l4 M* S' ~8 L" {6 D, f! u4 d修改的代码早有了。到今天不会编译。1 k9 z& K! X) f6 X! D& H! O! h4 W( M
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
. P) G+ Q4 H! W. d' t* { - #include <malloc.h>& n* Q8 X8 l2 N9 o
- #include <sys/types.h>" |! |$ t* D' {4 A. j- Z- d$ A$ [
- #include <sys/stat.h>+ R, n# j, U3 ?& P; k
- #include <sys/ioctl.h>/ q2 Y; a g. W2 y3 B
- #include <stdio.h>
; R9 C3 e( p. {* w7 _ - #include <string.h>
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- typedef struct {( N$ W1 {1 u2 ]1 f1 g- u$ _1 V
- unsigned int e2prom_cmd_sub_addr;
" r/ \: Q8 A- J ^) v$ U; }1 U - unsigned int sub_addr_count;
0 e! v& C5 `3 o& k8 I$ D7 ?% n/ H - unsigned char* e2prom_cmd_data;; J E! O& f. z3 n, g
- unsigned int data_count;: Y6 B6 r7 Q* |1 W( E/ a4 O
- } e2prom_s_cmd;# C5 z: l7 F+ @) r) d
, x6 r/ n5 y6 x- #define E2PROM_CMD_READ 1
$ g) \5 g* B2 a& j& K4 c1 J - #define E2PROM_CMD_WRITE 2
$ a" s X! T1 {' [ - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"$ m! U; v- h4 j) R+ n6 {3 b; z
- & }# o9 ], X$ ]5 P
- static int readparam(unsigned char *mac, unsigned char *stbid)
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6 |5 X8 t% j) d' U: K6 D, l3 g p- A. C - int fd, ret;
8 t2 s8 K: |9 O - e2prom_s_cmd arg;
2 C9 @+ Q9 d6 | - unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);, l8 W' ~4 r* o$ w" t( s
- if (fd < 0) {
# s# T' J3 A, b% x, L) M9 g9 x6 J - printf("Device %s open error.\n", E2PROM_DEVICE);
* c* ~" a5 @& ?. r9 v9 l - return -1;" `4 ^. @0 F" P: H
- }% {' K: n+ V9 V; w' O. D
- arg.sub_addr_count = 2;
! P0 t7 e& I. N+ { - arg.data_count = 0x18;
. O$ L/ H/ A1 l1 ^; w" P3 v$ \4 x - arg.e2prom_cmd_sub_addr = 0x290;
4 s# l; Z. R! @4 { A' x - arg.e2prom_cmd_data = buf;
" y! u4 z, U5 t - ret = ioctl(fd, E2PROM_CMD_READ, &arg);# n4 g( j& X( t
- if (ret != 0) {
7 C) J' g% D x' r% ^) P/ V( G - printf("Device %s read error.\n", E2PROM_DEVICE);# p/ p) F( s6 k' \) ~7 q- Z
- return -1;4 s P; t) J' D+ z% C. F* n: v
- }: Y3 L2 o; Z( g$ c: ]
- memcpy(mac, buf, 6);! D; G8 g) v! d7 B
- memcpy(stbid, &buf[6], 18);
7 P4 ^9 X* b' j/ v - stbid[18] = '\0';
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- return 0;" a& o, K& v9 p: V) w
- }. r8 u" y# I& G+ ]) Y
- * d! B* `5 [) V p: R
- static int writeparam(unsigned char *mac, unsigned char *stbid)
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5 M$ n d: V* Y4 Y; D - int fd, ret;+ c6 u! _8 P0 _. o3 Z
- e2prom_s_cmd arg;8 T0 _+ P- x, l$ I! [
- unsigned char buf[0x18];
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( o# Z; E& n& Q3 o- z, R- memcpy(buf, mac, 6);
! @. }! E& G) N0 w, S# q - memcpy(&buf[6], stbid, 18);
. ]$ @) u/ ^" C& X: H* \ - fd = open(E2PROM_DEVICE, O_RDWR);
( m/ \6 V) w" Z' ]3 @& `/ J" {. P - if (fd < 0) {
; O0 y! e$ m, T2 _ - printf("Device %s open error.\n", E2PROM_DEVICE);0 u* r o0 d( s
- return -1;# T- Q3 Y1 \ x U; O) k3 Q
- }
9 M% q( m! n/ P - arg.sub_addr_count = 2;; z$ ?# w- i5 N* X9 h' m: G2 m
- arg.data_count = 0x18;
" d. a' ] B7 N( S: N - arg.e2prom_cmd_sub_addr = 0x290;* ~6 Y! s) J- |/ }% z$ A
- arg.e2prom_cmd_data = buf;
: I5 F. w6 a5 |0 W" ?( W - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);3 v7 |: h; N) M$ g) p) M$ G
- if (ret != 0) {
+ H4 c# U& ~& v; `1 a; l - printf("Device %s write error.\n", E2PROM_DEVICE);& Z8 v3 t5 l1 Q1 s$ n; S
- return -1;) ^0 }, `% R9 {9 ]1 t4 R
- }
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- return 0;' D& N+ [* T7 T) P
- }6 n6 N. |8 m1 ~1 k6 {
8 A! K0 y, [6 d) ^/ h* s, C- int main()
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6 U, x0 \3 ?! d - char c;1 [& o0 w8 H7 ^' U. ?
- int i, macs[6];
- b, S6 y. |- }3 o: g - unsigned char mac[6];. {/ P; O( {# I5 X+ m
- unsigned char stbid[256];
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7 \" E4 Y3 D8 k0 E9 ~- if (readparam(mac, stbid) < 0)
8 z: w9 g/ c. L4 W9 ~, l0 ] - return 1;6 s" J+ i: i# c& n
" u. Y! @8 G4 T7 t# Q0 g5 a; _- printf("Current parameters: \n");( r3 `% [0 i& o
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
/ @, L6 {! D! \2 H( ]1 i. t- j G - printf(" STBID: %s\n", stbid);
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0 g* o m! S2 N" p" N3 B - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");8 \' `4 V0 E% L9 q0 q: D
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {0 e& y$ ^: I' V8 a0 _3 }
- printf("Input MAC error\n");3 t- m9 l: ?# ^, D! X8 G! }
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];
: L8 l4 {% A) X+ n6 ] - printf("\nPlease input new STBID: ");' P- ^; {+ e4 z6 I o& P2 ~3 V
- scanf("%s", stbid);
7 C3 g$ G; [7 a0 u" u5 O5 I - if (strlen(stbid) != 18) {2 c: t. H5 ], F6 ^, I3 Y) M
- printf("Invalid stbid\n");
( h3 W3 k# R/ Y, T" V - return 1;
( G/ T D* c- B( D0 Q% G) @& g - }
+ a4 _ W7 G* Z! e# x - printf("\nNew parameters: \n");& v' n) N) b2 N5 |' \
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);- i! h: m$ K6 M* ^* a
- printf(" STBID: %s\n", stbid);
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+ K/ U S# n2 |8 _) V- printf("\nDo you want to change paramemters? (y/N) ");+ @9 V' B& l0 j2 @+ S& c( ~7 N4 N1 P
- for (;;) {2 l3 s% d& M( f4 g
- c = getchar();; g2 o2 K( f: o1 ?' l
- if (c == 'y' || c == 'Y'); K6 M' C) p" Z$ x* w9 k
- break;: d, d1 J6 W1 u+ \+ b
- if (c == 'n' || c == 'N') {
0 O" |" `. ]3 F- b$ ^ - printf("\nAborted.\n");# }( n4 [6 C: d: {- E
- return 1;; b! c* ?: Y0 z
- }
+ W+ J. E' L" T$ p( g9 n - }
; r" r& E) ~& ?* b* g3 @ - if (writeparam(mac, stbid) == 0)
' h! a/ \1 U' I1 }) a - printf("Parameters changed.\n");
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- return 0;7 P9 l, T* R s; [. A
- }
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