本帖最后由 0522 于 2012-3-21 23:04 编辑
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# b8 J: s- s/ s修改的代码早有了。到今天不会编译。
5 I. W* r# Z6 x需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
5 S5 C6 `6 [" Y7 E - #include <malloc.h>
9 J. d' R1 g2 p5 O8 s6 k- J1 m - #include <sys/types.h>
$ t' I$ W o8 m. ?! ^4 @! S - #include <sys/stat.h>+ h! b0 [( n- A3 ^! o+ `# m y; ?
- #include <sys/ioctl.h>) l4 T/ {" g; \2 Y- I4 w, y
- #include <stdio.h>9 y2 r9 Q) V. l3 _4 n8 ^) a
- #include <string.h># |6 a5 u4 ~ |. d1 R1 u( H$ ]
3 X. O/ L. T7 t7 `- typedef struct {' Z, K* _$ w- h8 I* ?0 A- h
- unsigned int e2prom_cmd_sub_addr;/ F6 S% t$ U8 g! q
- unsigned int sub_addr_count;0 b% L) ]# ?9 D
- unsigned char* e2prom_cmd_data;8 K7 x M: b& x
- unsigned int data_count;
& Z4 Q. `, i8 p8 u' {9 S - } e2prom_s_cmd;6 G& J) |& I, s
- $ ^! d' c- S6 ]! l% G% K. A
- #define E2PROM_CMD_READ 1( Q! ^% a2 W& q1 Z9 {/ N# x! ]
- #define E2PROM_CMD_WRITE 2
4 u" o0 a% y# Z4 v$ [, t - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16". W% e, o. q6 o6 \
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- static int readparam(unsigned char *mac, unsigned char *stbid)
6 i- M4 x7 ^9 U3 s - {
' |( S9 W1 }3 o, S9 A - int fd, ret;
+ `" ^: ~3 q, n8 C* J6 R - e2prom_s_cmd arg;
' q. U8 J+ s9 M* t+ m+ r) M - unsigned char buf[0x18];* n% l- S/ Y3 s
- 3 a' ^: e% s! @
- fd = open(E2PROM_DEVICE, O_RDWR);- T( j# m" I. i( R r9 J5 {
- if (fd < 0) {
5 m- Z! t, J# u3 ?" u - printf("Device %s open error.\n", E2PROM_DEVICE);
5 y( U8 o; R7 Z" Z5 j6 E - return -1;
. |- n7 d0 W. S( O! h7 s - }
9 b1 o' k# [1 S% i - arg.sub_addr_count = 2;7 j9 b0 U! L& I% q4 g
- arg.data_count = 0x18;8 Q. e8 o+ v2 a
- arg.e2prom_cmd_sub_addr = 0x290;) \+ c/ b4 e9 Y! n5 i- y
- arg.e2prom_cmd_data = buf;
2 D! M* _) p( ?6 q - ret = ioctl(fd, E2PROM_CMD_READ, &arg);/ L3 G: e/ }1 h* b H$ o
- if (ret != 0) {
! Y6 I1 L9 k( s% s6 U - printf("Device %s read error.\n", E2PROM_DEVICE);6 K7 F+ r9 E) N
- return -1;
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- memcpy(mac, buf, 6);
1 t0 {5 \* A" \2 G! j. E - memcpy(stbid, &buf[6], 18);3 U- g1 E- i; H8 M2 ]4 R3 U$ m) D
- stbid[18] = '\0';' x6 _: M" n; S% M# E8 Z$ A
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- return 0;
% ~6 ?: o" i$ \ - }
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9 S. T. S9 U3 {" ^! ~, g- static int writeparam(unsigned char *mac, unsigned char *stbid)9 p6 `: T- q4 A9 }
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- int fd, ret;+ [/ F6 X; `+ H; m: a) p, i5 t0 p
- e2prom_s_cmd arg;( E! o2 s# Q# z. c5 k
- unsigned char buf[0x18];* F& m% D3 P$ h' r3 {! \
/ w, K, q. ~( f* r' I- memcpy(buf, mac, 6);! T; W* }+ c3 n9 U' ~% h
- memcpy(&buf[6], stbid, 18);3 O: H7 N) f7 Q$ ?- ^
- fd = open(E2PROM_DEVICE, O_RDWR);
; M6 D7 S5 x: p& G& }0 [% i' z& o - if (fd < 0) {
+ ?9 g [* ]( T) T - printf("Device %s open error.\n", E2PROM_DEVICE);
, P7 v4 K( G: Y' D' T% J - return -1;
& N& t/ B& S4 G) g - }5 t* n6 R' {7 X* H0 T& q
- arg.sub_addr_count = 2;
1 e- e9 J' g/ B - arg.data_count = 0x18;
6 o7 i7 {9 ]5 H. a* ] - arg.e2prom_cmd_sub_addr = 0x290;1 Q( U2 C$ ~- B0 w
- arg.e2prom_cmd_data = buf;
' o2 Q- t& [; G K% \, L - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);5 \7 U% V/ Q7 e5 O# I" y/ L8 k* U7 ?
- if (ret != 0) {$ J& M6 X( G( n, R, m% m8 O
- printf("Device %s write error.\n", E2PROM_DEVICE);1 S. Y: G1 d: f" x2 W: u
- return -1;
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2 [+ { d( z9 j0 z& N& D' \) n- return 0;
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- - v N4 Q9 t7 v3 h
- int main()* F3 T3 Q& M( J) m$ l% f- ^% P# K
- {3 f& u' Y; R3 y" J2 F2 e' ^* N
- char c;
F8 p( r# V3 s4 n7 t - int i, macs[6];- {3 E% G, ~: J U* x
- unsigned char mac[6];5 y: A3 o. a( Y3 {
- unsigned char stbid[256];8 ~* n- o3 n/ K1 J$ F* I: \
3 n7 ]' O+ N a7 l: @- if (readparam(mac, stbid) < 0)
9 k1 c% D5 z) [0 b5 n/ c; [ - return 1;
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% W. l0 Y D! e1 m* F2 M* V- printf("Current parameters: \n");
5 N1 c- w5 E* u' k - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);7 m2 Q( `3 x) p. V
- printf(" STBID: %s\n", stbid);
7 P: O1 M. a4 ?4 H( B* \4 L - / f& \% q0 d, j$ S& N6 m
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
8 a* H$ f0 F e1 L - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {$ \6 h6 D. i1 Z% X* N2 n9 q0 Y
- printf("Input MAC error\n");$ H$ M# `1 `$ n5 ~' x& R9 d/ ?4 i
- return 1;
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- for (i=0; i<6; i++)mac[i] = macs[i];2 \# y+ `7 n/ `9 R
- printf("\nPlease input new STBID: ");* p4 Z; ]# l# Q9 m, Y& D% k/ e
- scanf("%s", stbid);
+ N! ^. r5 H9 E$ a6 ? - if (strlen(stbid) != 18) {
1 j7 a3 b/ K M6 d0 S - printf("Invalid stbid\n");" V2 p6 m& X6 n9 h1 n% Y
- return 1;; v+ P6 U2 h) g1 ]( Z
- }+ a( q# G2 p+ k x6 I9 ?
- printf("\nNew parameters: \n");1 X8 }0 `8 b: N# d1 e
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);. O* A8 Q7 e8 N& S2 g/ Q
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
! p5 c$ v0 E& z# |3 p - for (;;) {/ `, y; K" s% e7 r/ [8 E
- c = getchar();
$ p0 R3 i0 v* z7 X1 V! g. m" w) O+ k - if (c == 'y' || c == 'Y')# b( X, }4 S4 {9 Q+ V
- break;5 t/ I4 I* I! {% ] s
- if (c == 'n' || c == 'N') {! E. ?: d \* Q9 s& G0 u! M) p3 y
- printf("\nAborted.\n");
8 W) H& B2 Y1 Q6 M# \ - return 1;6 h1 w$ U! I- U
- }
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- if (writeparam(mac, stbid) == 0) * }* U( }2 r8 r$ Q5 ?
- printf("Parameters changed.\n");
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- return 0;% D: o* ]; a' J
- }
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