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。
& Q) W# B: \9 h% h6 w% h) B+ W( l需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>4 L1 p# S+ W$ j3 x: r0 z* l4 y/ f0 H
- #include <malloc.h>
: m/ f8 C4 ?1 p% `! p6 R2 K - #include <sys/types.h>4 e0 M- |: c% i$ b3 j
- #include <sys/stat.h>1 W7 ~4 y1 v! A5 h) H& `
- #include <sys/ioctl.h>
3 B+ w( e1 m% w) o9 k/ e6 W( y - #include <stdio.h>
3 ^. q h/ I: j' O9 Q3 Y' \ - #include <string.h>
2 c) P. d& W' l4 j5 X - : z& z) A/ r8 h: Z
- typedef struct {+ `0 O% [; O t/ W$ C8 {4 q( h
- unsigned int e2prom_cmd_sub_addr;
* x9 `6 Y, g5 }+ B" \ - unsigned int sub_addr_count;4 t$ P) L$ T, w# y( ]: n
- unsigned char* e2prom_cmd_data;
: u3 e# r, s) d2 i/ `/ N - unsigned int data_count;( C$ W$ x& p" J( S" u! c F* Y4 H
- } e2prom_s_cmd;8 U+ _. ~, T( F0 D
+ X* b+ n% f% z2 D7 S; ~- #define E2PROM_CMD_READ 1+ \3 _) [ l& m8 A+ t: U- q
- #define E2PROM_CMD_WRITE 2$ Z, H: `/ i" `
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"! G# g' g: h& ^9 P# J
- ( M( U/ F w1 u
- static int readparam(unsigned char *mac, unsigned char *stbid)) O: _4 C1 d% L
- {
# R1 l" h0 I# X5 F) V0 j - int fd, ret;
2 B& d3 J. M2 y. W - e2prom_s_cmd arg;, s5 ^8 ]. F1 G2 m- k
- unsigned char buf[0x18];
* N& ?. u& P3 P5 x( A - ( F* b9 ^) V* {6 d" @# _* k1 g* N
- fd = open(E2PROM_DEVICE, O_RDWR);
9 ~$ i% N6 E8 z* ^: U4 Q$ Q7 X - if (fd < 0) {6 ?8 ^: Z$ J- m% N
- printf("Device %s open error.\n", E2PROM_DEVICE);5 U4 E5 p* {# |9 _# ~: L* D5 }) a
- return -1;. H A! Z' n0 i- c, q
- }
. R) x; r8 G- V/ l# e6 d, [4 e - arg.sub_addr_count = 2;
" i Y5 r: C$ w4 C7 [6 f' N - arg.data_count = 0x18;' h4 \' D3 g7 S. `* O
- arg.e2prom_cmd_sub_addr = 0x290;
8 N, v# [5 ~, n3 _* @8 m' Q' f - arg.e2prom_cmd_data = buf; \* V. M. W* l Q
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
& ^4 y( n- A0 z* F& W. v - if (ret != 0) {' K$ U! b% R+ g- X
- printf("Device %s read error.\n", E2PROM_DEVICE);
' H$ T; A7 Q8 P E1 \8 R - return -1;2 j" \" d. @' O$ p& k' u- M7 a7 j- l
- }9 k+ @- }" z' Z2 Z
- memcpy(mac, buf, 6);
/ j4 N, N- O: P+ ~ - memcpy(stbid, &buf[6], 18);
7 E+ i; j0 K6 Y' z3 b, O - stbid[18] = '\0';
- I4 E4 p2 i; i# F2 l - ' V1 l G4 {# X; s
- return 0;
' i3 I; u8 a7 J - }
* {! I% j9 m: F! c5 [ - , ^8 i$ r, P/ y; I/ _$ E% w9 U
- static int writeparam(unsigned char *mac, unsigned char *stbid)% S. s0 k0 y$ f# Q) t: q" J
- {
7 U4 S% y0 s+ U" v1 w ]/ y - int fd, ret;8 X; I% b z! W- @! L& J6 l: p/ I7 `
- e2prom_s_cmd arg;
5 A# l. t$ D% j. ^ - unsigned char buf[0x18];: h6 Q: k9 d. W. s+ e
, m+ _ W1 N) J# F* ?" G- memcpy(buf, mac, 6);
( V* |! |$ N7 B$ s' i {+ f - memcpy(&buf[6], stbid, 18);
5 ?, @" C- ]5 F* L4 a* e; f - fd = open(E2PROM_DEVICE, O_RDWR);$ y z* Q- w3 n! v0 M1 ~
- if (fd < 0) {+ K3 [7 K7 a& T- p
- printf("Device %s open error.\n", E2PROM_DEVICE);
" j8 p" U' Z' e0 D - return -1;
* A$ l0 Q; {& c. ~ - }
2 @3 \1 Y" C0 \. h$ S$ i6 t - arg.sub_addr_count = 2;& Q$ I( x' I! h; @" l9 x0 g8 r+ D
- arg.data_count = 0x18;
, }' A. |; L# R4 S5 u5 [ - arg.e2prom_cmd_sub_addr = 0x290;$ Q H! U) P" l( d- q% m( F, d0 P
- arg.e2prom_cmd_data = buf;; i9 T& r7 s M6 S# c2 S5 X& C
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
" ]; X3 Q: d# g( \2 u) p, k* ` - if (ret != 0) {
, v( d& L5 [* o' ~, n6 i* @ - printf("Device %s write error.\n", E2PROM_DEVICE);
- ?, M, U" l( C" J$ i - return -1;
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$ q D& S! ~, _8 p- return 0;
6 g: v) ~$ j# y$ d - }
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2 z4 G7 Z o8 u7 y& S( n5 I0 v& C- int main()
) O f$ E+ x+ Q' M/ r4 v - {
( D0 n) N+ {$ M0 j9 A' z - char c;
, H2 r+ [" C" ]/ j5 i) {; E& A4 A - int i, macs[6];
( h8 D N# @$ C. H1 l, y; C+ ~ - unsigned char mac[6];
* {- w8 N# b# h- u. X' v - unsigned char stbid[256];
3 y4 P7 S' S) P
/ U( x# r2 K/ f# H' s% R- if (readparam(mac, stbid) < 0)8 [2 f: |" q1 S: j
- return 1;' X1 [; _- Q3 J* D6 a; b/ C9 M
8 a7 F$ A" P6 _* d" p' Y3 Z- printf("Current parameters: \n");
1 t! \4 V0 w$ z6 w - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
5 u* h5 k, b1 y - printf(" STBID: %s\n", stbid);
2 }+ u$ a2 E' T% n, M -
/ T6 {4 S5 e F6 G Q/ A: | - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
+ P- D% |7 I+ D) F - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
. Y. y ^7 B' U8 B; u - printf("Input MAC error\n");
) {3 ?; ]. ?: V, ~$ ` - return 1;
. z6 ]$ r. d! _+ t1 p1 i! T+ X0 b - }
, l& T" Y5 C& R/ k7 O8 O1 D; b, @ - for (i=0; i<6; i++)mac[i] = macs[i];
/ }1 N0 P" M5 d; U - printf("\nPlease input new STBID: ");
$ {1 A6 t- I/ B4 I' u, r" T - scanf("%s", stbid);
2 q& ^1 e9 D7 [ - if (strlen(stbid) != 18) {
/ I u% n2 \6 C5 G - printf("Invalid stbid\n");
, h* e; s: r1 M8 F - return 1;
& ?% c9 w( N, U! ]. w6 J/ D( a - }
& t! f' E1 ^7 E4 c8 S - printf("\nNew parameters: \n");" b% N: W( k5 L1 L. y" X
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+ b2 e p: C' s8 k8 d# H* v - printf(" STBID: %s\n", stbid);3 f+ P# Z: r& z1 E6 s9 {- w7 \
I$ f& U2 k$ \/ G- printf("\nDo you want to change paramemters? (y/N) ");2 z: I" a, ?3 ?% }* j+ q
- for (;;) {
4 \2 R5 j3 @! w: s4 S6 A - c = getchar();
Q4 u$ ]4 x; D; O8 R6 e& c! B - if (c == 'y' || c == 'Y')
! d) a" P( k& A - break;
1 t+ I: C9 l8 l# l - if (c == 'n' || c == 'N') {
( d2 z) a+ W8 @: i2 o! G - printf("\nAborted.\n");
; g9 e1 O/ Z( m* x - return 1;9 \0 n$ n8 \/ U- ?+ l& \
- }0 |+ u- b" V7 h q. `& ]
- }
* Q3 T; d5 |' D" y q - if (writeparam(mac, stbid) == 0) / |5 V' `, B! c" ]
- printf("Parameters changed.\n");; b( |9 R# Z# V
( h2 T- ~( e9 Y& j) p- return 0;
1 p% V7 A$ E9 F4 u- v ^ - }
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