本帖最后由 0522 于 2012-3-21 23:04 编辑
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修改的代码早有了。到今天不会编译。; K8 h1 a0 d1 b$ W9 j$ `( d
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
# T+ w2 \+ L4 K4 W - #include <malloc.h>
# A) }7 I) r' u, v - #include <sys/types.h>
' L6 Y0 ^/ \3 P+ N- q - #include <sys/stat.h>( W, T0 w9 J$ m" X3 W+ ~4 Y( }
- #include <sys/ioctl.h>2 D& K3 n, f4 [ p# o; n6 M
- #include <stdio.h>
d- v' q5 t2 ? _) C9 C - #include <string.h>
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7 a2 W9 E8 u Z0 e. Y1 Q- typedef struct {
; L: g G/ P7 m8 o0 n: `' }" Y - unsigned int e2prom_cmd_sub_addr;
' U7 Q! D k& U - unsigned int sub_addr_count;
) U, V& s7 G% q/ K - unsigned char* e2prom_cmd_data;
* g4 f2 S5 L: e8 J# d+ ?5 o5 f - unsigned int data_count;0 y% N9 r# C8 C: r
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
4 M# y; O) C1 p7 E I t1 Y* F1 p# B - #define E2PROM_CMD_WRITE 2
) A r7 k4 ]4 m0 H) _ - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"6 S4 e8 m1 w$ x; O! G
8 a( M* [" {; j! x$ l/ Y- static int readparam(unsigned char *mac, unsigned char *stbid)
* p0 R2 v3 T2 `7 X; J1 v - {
& ?# r. ?5 z) H4 E - int fd, ret;
) z- C( a; X7 _% a/ K$ o; r+ ` - e2prom_s_cmd arg;
# J( l, X/ r& X - unsigned char buf[0x18];4 ?/ f# c3 M& j! z3 t
% Z8 y4 p2 H/ [# j+ [- fd = open(E2PROM_DEVICE, O_RDWR); X4 g# r5 [9 {1 J$ V
- if (fd < 0) {6 U9 y* J: `4 c w
- printf("Device %s open error.\n", E2PROM_DEVICE);. h) { ^5 ]: M
- return -1;
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- arg.sub_addr_count = 2;) d$ g: B- P$ |/ J5 _! U! g7 E. \
- arg.data_count = 0x18;
: F& i5 ?4 k2 J3 g - arg.e2prom_cmd_sub_addr = 0x290;
; }. Z% K4 t9 ]$ _3 r( G% ^, G% y - arg.e2prom_cmd_data = buf;% i6 _7 w7 V: j/ x3 v" W# d
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);3 k: B3 ?8 A6 A' t
- if (ret != 0) {; F- w% _8 f4 H) z; c
- printf("Device %s read error.\n", E2PROM_DEVICE);
0 G2 R0 Y! S } - return -1;; }2 l( Z5 f$ {" n+ m) E
- }$ k7 x6 q0 w' ~) b* C
- memcpy(mac, buf, 6);: ~3 D; W4 F. z7 Z( L3 T y* I
- memcpy(stbid, &buf[6], 18); z1 ?* p. @+ D) n; w
- stbid[18] = '\0';4 Y' h) z, i5 r% M& k% \
2 G# U! Q2 h" y# ~: ^& ^- return 0;
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; ?0 O: ]. |, N5 \( W; |9 S7 V- static int writeparam(unsigned char *mac, unsigned char *stbid)0 g, B0 c1 H" F2 L/ ^& d( A
- {
! `: u8 z: N6 H/ x5 I8 z - int fd, ret;
/ [# J+ z2 H4 t% j0 @4 r6 w - e2prom_s_cmd arg;. b5 C2 {$ u/ F" T- U9 x6 ~
- unsigned char buf[0x18];
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- memcpy(buf, mac, 6); { Y6 [5 e6 @; x
- memcpy(&buf[6], stbid, 18);
$ L3 D z) q- [1 l- F# v - fd = open(E2PROM_DEVICE, O_RDWR);8 D( Z" Q" t% K; h
- if (fd < 0) {( P- n6 B8 z) h `0 r! u' M
- printf("Device %s open error.\n", E2PROM_DEVICE);
' M- U# z% X9 _% K9 x: i) r - return -1;
6 E# j. H. c6 H1 t - }
5 a) E! ], R9 W* j( H - arg.sub_addr_count = 2;
! v! z0 {8 M6 d2 R* G/ ^ - arg.data_count = 0x18;
' b6 |: P7 \3 y/ G: e - arg.e2prom_cmd_sub_addr = 0x290;* G" E5 e- U2 [2 ~9 l; S
- arg.e2prom_cmd_data = buf;
! Y4 W% Y$ a; Q y7 t3 S, Z - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);2 b) b2 B0 U! g Z9 D' g9 e
- if (ret != 0) {
9 b6 d: e5 A* Z5 S - printf("Device %s write error.\n", E2PROM_DEVICE);0 ~- z) R. |) {, A( q
- return -1;
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- return 0;+ Y4 ]' B% q. Y' ]
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u7 G9 h% h5 e, x- int main()
; y& w- K/ d( v M - {
& i' q+ u) J2 |) @3 k - char c;4 q" t$ F+ H7 \
- int i, macs[6];5 e* ?2 G( C0 Q7 U! f( o! V1 K
- unsigned char mac[6];
; C8 N. t9 A3 p) p* [8 i$ ] - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
5 {/ E$ c2 s, K3 r( K$ p# n - return 1;
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- printf("Current parameters: \n");1 W$ m# ]1 _; R5 p9 ]
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
. _- T* s+ o1 ~; U' V2 l& g - printf(" STBID: %s\n", stbid);
3 z3 K' }, r: @/ Q- n0 w -
4 G( _$ V- l- D; _ - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
% n' f; Z' Q3 X& t9 r- w; m - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {3 e- I9 q2 N5 w- L( v
- printf("Input MAC error\n");
- n4 Y: F L! }, P5 S - return 1;1 h7 L& e) o( ^ v% h
- }1 V9 Y# ]$ ?/ T7 x4 Q% r4 d1 b/ }
- for (i=0; i<6; i++)mac[i] = macs[i];% _6 G- c4 l6 a, _ p) o
- printf("\nPlease input new STBID: ");
- k2 v* h- ^8 D3 P+ V - scanf("%s", stbid);
8 q% ?) t3 v+ y. | - if (strlen(stbid) != 18) {& J! X0 v' R# c2 S, i9 m
- printf("Invalid stbid\n");
% e! n" `- ?+ e, i, h6 b) t - return 1;/ m4 Y0 N$ e I0 C8 a! \- D( B; F
- }
. o/ ~: Q4 O4 L# b1 I4 i D9 D - printf("\nNew parameters: \n");, I9 A9 ^' \4 J; A3 r9 ~
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);# U6 N/ G3 w5 s; S
- printf(" STBID: %s\n", stbid);6 f& p# f4 v. E% o$ C2 c
' i# a( x7 K* k9 K- printf("\nDo you want to change paramemters? (y/N) ");* Q" z- m; ]1 D- `& s% C8 E
- for (;;) {+ y- B3 r- k* ~2 _) C$ V
- c = getchar();% Z# ]) A6 t- a* e" t; K. a/ j
- if (c == 'y' || c == 'Y')) v1 w& U4 i+ e/ G. q
- break;+ y! N) z9 ~+ R8 ~. b/ t
- if (c == 'n' || c == 'N') {3 I) E' a2 T# k3 r: f. h
- printf("\nAborted.\n");
: ]2 g2 {) |" b5 Q; J+ B - return 1;9 D/ P" N7 x, Q
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- if (writeparam(mac, stbid) == 0) ' h5 j; @4 A# C
- printf("Parameters changed.\n");" v. M8 t% s6 e$ |. N3 o
: V# R- z9 c2 X5 Z0 `$ e- return 0;0 A5 \+ O$ J$ o* y6 {6 f: ?' j
- }
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