本帖最后由 0522 于 2012-3-21 23:04 编辑 : B H- X( W3 O* j$ |
2 j3 f) P% ^& L修改的代码早有了。到今天不会编译。+ t8 }2 j' Z# C, L
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
7 `' {8 s: m9 I; v3 b' [7 r - #include <malloc.h>
+ k5 k! u7 L' N5 D6 j/ r9 l - #include <sys/types.h>
# y9 k0 Y! ?+ x7 C8 c4 z - #include <sys/stat.h>
, C3 i6 R; W8 ^$ T/ _ - #include <sys/ioctl.h>
: |. m2 h0 S" w. w# ?. u - #include <stdio.h>
, L! t7 a \* w& E& s9 [ - #include <string.h>
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* O! w0 |) I8 E' ^- typedef struct {0 o6 I9 ^" s; E. b
- unsigned int e2prom_cmd_sub_addr;& w4 J, B9 {# D& @% r
- unsigned int sub_addr_count;
3 x3 d- p4 K! w% S7 n, ^$ B( x - unsigned char* e2prom_cmd_data;8 F4 ]' [: X2 U5 x' j# d
- unsigned int data_count;
4 @; e: m/ _4 |' y4 `) k N - } e2prom_s_cmd;9 C+ R: y I, F3 s+ @" D' S
8 N, t$ j q' O7 \- #define E2PROM_CMD_READ 1
1 D( X. m: b8 L3 ]3 P [ - #define E2PROM_CMD_WRITE 2# r. N7 q& O' F
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16": P+ }' S* g1 C' O* Q
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- static int readparam(unsigned char *mac, unsigned char *stbid)5 u, F' U& z [+ G* h. N, Z
- {
3 J% q3 v- T+ \7 f7 Q2 i! ]& G6 \ - int fd, ret;% s' G9 z: @+ @
- e2prom_s_cmd arg;
& }0 Y9 \ I+ P0 l2 X) L+ z+ J - unsigned char buf[0x18];
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* Z, {6 I' ~2 ~5 P; `* S! J; F+ i- fd = open(E2PROM_DEVICE, O_RDWR);/ o; Y9 B* L4 D* Y
- if (fd < 0) {
: G/ U9 P8 J: \% f+ C3 s0 M, p - printf("Device %s open error.\n", E2PROM_DEVICE);2 w1 D+ u) ~; q# M0 C( u i# h
- return -1;3 {' |5 }2 K: y6 M8 P
- }
. `$ K0 D: @! K6 E: g. t - arg.sub_addr_count = 2;
3 B) f8 B/ V" e! q& _: f - arg.data_count = 0x18;; b7 G0 e+ j6 A, c
- arg.e2prom_cmd_sub_addr = 0x290;, h" l# ^0 ?; ]
- arg.e2prom_cmd_data = buf;1 i% @7 K8 j/ r! E5 C
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
* L& i9 L6 M8 I* ~8 H& ], w) ] - if (ret != 0) {
9 ]" h! G3 ?/ A. P m! i - printf("Device %s read error.\n", E2PROM_DEVICE);# N! q9 A+ T' r; G0 p
- return -1;
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- memcpy(mac, buf, 6);
* Y! \! J4 B# E, d$ H& E3 c8 Y - memcpy(stbid, &buf[6], 18);
+ }) |8 V( M9 b - stbid[18] = '\0';$ u1 k3 p7 H# A. k) A
% Q9 r0 T* X* T/ h- return 0;
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" h2 E+ S+ u7 o" J- static int writeparam(unsigned char *mac, unsigned char *stbid)
0 Z8 T4 o( R% v) X: E - {
: B# @3 g$ ] g' o6 @/ O2 ^/ g' h" p - int fd, ret;
- w$ O$ { Z4 ?7 |# j8 m+ H' X - e2prom_s_cmd arg;
- Y+ W& h) f- c0 ]: Y - unsigned char buf[0x18];$ y. c( `% T/ f2 [3 f
1 M V- T3 k' @: Q3 E$ k' O- memcpy(buf, mac, 6);
4 m; p1 {. k. V/ s - memcpy(&buf[6], stbid, 18);! L. y1 `2 k5 {8 a( R7 M, k ]1 ] J
- fd = open(E2PROM_DEVICE, O_RDWR);8 S3 l& K8 q/ q' o0 b. j* G
- if (fd < 0) {
9 c% y: x& ]- C. u D/ P% J - printf("Device %s open error.\n", E2PROM_DEVICE);
8 j6 M5 f" y0 B# [3 d8 G - return -1;- s; o" }; ^6 I; q0 N( i
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- arg.sub_addr_count = 2;
9 ?, ?- ~, ~' x' ~ - arg.data_count = 0x18;
3 T0 O$ ]2 G% H6 Z - arg.e2prom_cmd_sub_addr = 0x290;
4 e5 ?. Q# O4 A7 S - arg.e2prom_cmd_data = buf;' s4 j d0 C$ y; D( _# y# ^1 p6 X
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
j( O8 F2 A* r* V# U* I. J9 O - if (ret != 0) {5 Z7 q6 ^( m1 K5 K/ K
- printf("Device %s write error.\n", E2PROM_DEVICE);0 R% l0 W( }% a+ Z
- return -1;5 t l) o q- n0 k7 E+ k0 b
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- return 0;+ b/ Q0 l' H% e: n! ?& j
- }
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5 q; {, V& B. i0 d- int main()
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- char c;
1 G, T; \% ]+ v3 [/ f' N7 g - int i, macs[6];8 @* x2 }4 y0 t$ t! I
- unsigned char mac[6];. \9 _) O0 f3 _' }/ U/ @
- unsigned char stbid[256];$ u0 ]' _7 U5 j" r
' {# ~6 Q! l0 K9 n& c- if (readparam(mac, stbid) < 0)
. K ?& b/ E0 J* Y - return 1;% G! V7 N9 @. q; s) Q
- # s6 y5 L1 ~$ ?# [3 u/ I( e
- printf("Current parameters: \n");5 U3 c4 @/ Z& N( W& K
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
) H6 t/ h# Y; i7 N* a - printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
. A- { K8 u9 f# b9 m - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
0 p% `3 G& d! d; f) D - printf("Input MAC error\n");2 C4 Z% s8 L |+ C' A
- return 1;4 c j/ q% k9 ?% m! D2 ?; I
- }8 Y7 }! Y9 ^ `+ q' o: B; {
- for (i=0; i<6; i++)mac[i] = macs[i];' _0 L! t! l. [7 R7 Y7 d
- printf("\nPlease input new STBID: ");; j* K/ d5 L" r- l/ h/ P
- scanf("%s", stbid);; M+ A0 f6 P4 O5 l* w ^) D
- if (strlen(stbid) != 18) {
5 x6 p+ o0 R. H8 J8 Z - printf("Invalid stbid\n");7 n" V+ R! t. ]# }: a1 W1 T/ O' [
- return 1;& S) y9 X$ ^' L5 d f) u8 y
- }
) A% O# m4 f, S: j( Y+ F6 C - printf("\nNew parameters: \n");
0 |+ \3 p, v9 j# j9 B - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
, g. x: g, B; z [ - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
w* V5 v0 Z. t4 @; h- ] - for (;;) {* p/ T Y9 |8 u, I! C
- c = getchar();
( B5 x+ E: h- u! E% K8 q# A! ~ - if (c == 'y' || c == 'Y')# \2 v+ X5 B# O
- break;
9 s, }2 |6 l9 U% H+ ~ - if (c == 'n' || c == 'N') {
3 f0 b! R2 r% `' \ - printf("\nAborted.\n");# W1 L+ U8 ?, V
- return 1;
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- if (writeparam(mac, stbid) == 0) - Z! F" A/ g) G) D I4 a
- printf("Parameters changed.\n");* i3 `! T- z3 k; t
0 O4 w# v2 ]* N4 I( O5 y- J- return 0;
3 |$ Z H3 V, N# f' a9 W# ? - }
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