本帖最后由 0522 于 2012-3-21 23:04 编辑
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+ e0 f4 S. I8 B m修改的代码早有了。到今天不会编译。
" C$ m3 Q" g" c2 v+ i需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h> O! ]* n' Q1 [8 A' H* B3 y
- #include <malloc.h>' B& b) Z3 m7 X8 G1 S! g
- #include <sys/types.h>1 X$ Z: ^/ |) I! }4 E
- #include <sys/stat.h>
% t# k1 b, J6 Y" [) V - #include <sys/ioctl.h>
9 B, p( J3 n6 f! C( B - #include <stdio.h>% `$ d! r$ U) F" ~- w
- #include <string.h>
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- typedef struct {, X) R# i; c2 `2 K! n
- unsigned int e2prom_cmd_sub_addr;
. {2 X# j# n0 n* v# m3 X* X - unsigned int sub_addr_count;7 Q2 o& g2 P# |' r
- unsigned char* e2prom_cmd_data;6 v6 h- R, v% F3 }! ?' Q# b6 k
- unsigned int data_count;
* b* ^, X6 x1 C/ U - } e2prom_s_cmd;
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! k( g" t) V+ d4 }+ K- #define E2PROM_CMD_READ 1' A) ]% D) k. G. G6 ?
- #define E2PROM_CMD_WRITE 2
5 r) f7 P* n$ C) N! E: P - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"! D" P" X. ^1 l& T+ ?6 }, P+ Z
6 e" l/ ~: C6 a6 a0 C- static int readparam(unsigned char *mac, unsigned char *stbid)
% E: G% Q+ R% F8 a u1 E. y - {
1 b: D% A! Q8 X3 l8 e/ r - int fd, ret;
* J! ~5 E, f; p - e2prom_s_cmd arg;
# h3 ~$ X7 {( U* F/ I& F - unsigned char buf[0x18];8 |! s$ b+ U- S I& a; W' D- z
- + W3 M9 l; F# a% g
- fd = open(E2PROM_DEVICE, O_RDWR);; C4 [1 c ~6 N) k! F% j8 Q
- if (fd < 0) {8 R1 V! U& W$ }9 y' d! Z
- printf("Device %s open error.\n", E2PROM_DEVICE);- c& L- c0 S$ T7 z
- return -1;
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- arg.sub_addr_count = 2;
3 Z) t1 q; a7 y2 c - arg.data_count = 0x18;
" B$ y8 A8 \ g( s4 A4 J - arg.e2prom_cmd_sub_addr = 0x290;: M0 ~- D' F) h7 `) _& g) Y- ^
- arg.e2prom_cmd_data = buf;% J0 c* O7 e3 R
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);' B; Y8 S0 L) p H" N
- if (ret != 0) {
: {" o- ?$ {( k6 q* k0 F - printf("Device %s read error.\n", E2PROM_DEVICE);6 T X6 M, O: c/ `
- return -1;; X( w/ s2 Q' e
- }& M6 Z1 {0 e' {. {- s$ k
- memcpy(mac, buf, 6);
) E4 [$ t' M. P5 o& P8 S# W' X - memcpy(stbid, &buf[6], 18);
" e5 g8 J( ~1 j- U/ D# r: K - stbid[18] = '\0';
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* L- x# }" B. V! y- return 0;
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
* x$ M! G* a! V: l. f& E& ?0 n - {5 ?2 w0 Z4 [- P7 |" \# z
- int fd, ret;
6 t8 b5 j+ K6 E4 z - e2prom_s_cmd arg;3 T6 x- A% m, L& [4 g
- unsigned char buf[0x18];' _. y; j: [6 z/ S& a- o
: P3 C Z; J9 e; Y5 t- memcpy(buf, mac, 6);0 _' m0 E: C# N. z6 j$ r/ N
- memcpy(&buf[6], stbid, 18);8 i2 S0 t Y, e) ^4 `% Z+ P
- fd = open(E2PROM_DEVICE, O_RDWR);, ^1 U* b$ b" m7 ]- n% q- r
- if (fd < 0) {9 A: v9 X* V& A& a
- printf("Device %s open error.\n", E2PROM_DEVICE);4 `3 J) g/ d' B$ T; T* _
- return -1;1 C5 o$ P2 J" v- D
- } `) e" x7 x2 c2 I3 |
- arg.sub_addr_count = 2;
( X' U" r6 P# u# V - arg.data_count = 0x18;( J9 Y$ a, } H% Q; k" @9 f- c
- arg.e2prom_cmd_sub_addr = 0x290;1 u/ |& K1 ?4 {1 i; M' g
- arg.e2prom_cmd_data = buf;" u, O0 H! _7 l, C' E
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg); v' F' Z1 a7 }6 c0 V
- if (ret != 0) {2 C+ a a8 T4 I+ `
- printf("Device %s write error.\n", E2PROM_DEVICE);4 C0 k6 \& Z' t/ ^6 P
- return -1;
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% v. M" U6 w# l$ J- return 0;! {! |9 ~! l# L ?8 W6 @5 U! M' e
- }) X8 M2 i; Y* _5 V; W/ Z7 L/ g
# J$ e' I6 ~# H# V- int main()7 k) f/ Z- ^" r: |7 m
- {( d: ?/ @* U% z6 R* f
- char c;
7 w% E1 M! S. C - int i, macs[6];1 o8 c" O4 G" {& v$ r" w7 \, k6 N
- unsigned char mac[6];% L: G+ G/ ~4 X, @/ O, d
- unsigned char stbid[256];- ^9 C" D; b) D9 a8 L5 |: {
- $ ~8 d% x1 e% i/ F0 \
- if (readparam(mac, stbid) < 0)7 z+ y; i3 ~- {# F" J
- return 1;
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8 R' }5 @8 M# s. k" }- q6 q+ q4 O9 U- printf("Current parameters: \n");
) j4 N8 P+ @4 P/ V/ h! p2 b2 A9 e$ [ - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);9 C& k7 x- I, `, R4 I1 P6 }
- printf(" STBID: %s\n", stbid);
% L1 r3 I$ d% Z) @3 n - $ ?+ G3 i' \1 g- S& {
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");8 _7 ]' p0 \8 J7 a0 e9 C, ]* T7 L: b8 T) [
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {! j- b' {3 w# M8 Y
- printf("Input MAC error\n");# Z, r1 R( \, `# ?
- return 1;, \7 v4 ]- J% r4 J) I9 [
- }
' y' g0 C+ b+ v$ p' r- \# h: m5 p - for (i=0; i<6; i++)mac[i] = macs[i];" u/ p- l0 l# f0 t- y
- printf("\nPlease input new STBID: ");
9 z4 F! Z) [4 {$ G+ L0 h - scanf("%s", stbid);2 v4 j/ d; {, d3 N
- if (strlen(stbid) != 18) {* a: A% S$ B8 f4 m$ N
- printf("Invalid stbid\n");$ _) B8 D/ n b! q( f0 r1 i
- return 1;( c7 U( U p2 Y
- }, ]/ H. X2 h' G3 @: v
- printf("\nNew parameters: \n");6 c! k1 O% T# s/ k Z
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
- |/ C( i7 r3 m - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");. E y' P- s9 R/ k+ P5 _) F5 p8 ?
- for (;;) {
* a% g; Y+ C; d7 z; y - c = getchar();6 q* m( Q4 u2 h$ V% {1 U
- if (c == 'y' || c == 'Y')+ w3 a$ _, k; {1 ?
- break;
4 n8 g9 S) f1 P" l( V - if (c == 'n' || c == 'N') {
, | @8 D1 c9 O - printf("\nAborted.\n");+ N# @& S. ?2 h& E; O o
- return 1;) P, w+ h7 Y3 |1 {
- }
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- if (writeparam(mac, stbid) == 0) 4 i, z+ z9 d) s
- printf("Parameters changed.\n");& h# G# g" H2 Q- x; b8 I; ?5 ]
- , t/ ?' C3 i; Y- Y1 n
- return 0;
% E3 I5 u8 ~7 W) G/ y, a* X h - }
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