本帖最后由 0522 于 2012-3-21 23:04 编辑 ' V1 q7 k1 E1 R i M
5 d- o, B5 W" J5 ^ `& J3 y" h; y, g! W/ B修改的代码早有了。到今天不会编译。- ?3 x4 w3 h* N( I
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>" c$ C% [. A4 h8 |1 R5 V+ n
- #include <malloc.h>; f" `: l) J2 l6 d, _
- #include <sys/types.h>' a( ]& H1 a3 Q2 z; w
- #include <sys/stat.h>
: |; A- {1 I$ \! T5 V8 C - #include <sys/ioctl.h>* y/ I6 K9 l9 e% ?1 `( C: `
- #include <stdio.h>. u: {# h3 x' t' j
- #include <string.h>( r, y. h0 f$ C% r! f0 F
- $ j2 `$ G9 d! `7 {
- typedef struct {
. W) v# x1 u R# D - unsigned int e2prom_cmd_sub_addr;$ O4 m, w& y2 `" t- Z0 A' F
- unsigned int sub_addr_count;
" U5 b: R5 W! ? - unsigned char* e2prom_cmd_data;( Q) ?+ l8 E# f1 d& X! N+ C* ]
- unsigned int data_count;1 d1 o5 t7 c9 ]: x6 D$ U
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 11 M3 W6 m f$ N* {9 D( l
- #define E2PROM_CMD_WRITE 2! l g+ R7 |3 Z# d6 t( `+ L! ~
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"' v$ |- n: k! ?8 r. w- V
- S/ X+ p# D7 n5 c7 {& d- static int readparam(unsigned char *mac, unsigned char *stbid)( m) u, D/ v" I5 x# O/ O
- {
; a9 Y+ L. N q3 m- P2 A( w - int fd, ret;' u$ c3 Q9 ^) m) D
- e2prom_s_cmd arg; ~$ \( _- a' z# F/ F6 B
- unsigned char buf[0x18];# U( [# M, K% q
7 g6 o0 }; ?+ P) B8 D& [- fd = open(E2PROM_DEVICE, O_RDWR);
" Y2 G4 Z) S. N& P: g - if (fd < 0) {, B. `0 z2 h7 H# X6 `1 b+ ?
- printf("Device %s open error.\n", E2PROM_DEVICE);; b3 Y7 C8 {" a% v2 l
- return -1;, J9 j! @3 q$ J: V3 E5 f7 ~
- }
+ ]- N" H# t2 u0 ~ - arg.sub_addr_count = 2;
8 d" i: \. M8 M2 x - arg.data_count = 0x18; b, C7 O/ Y d* f* V4 I
- arg.e2prom_cmd_sub_addr = 0x290;
6 _( i; Q9 k" z. M5 j( n, U. ^) i - arg.e2prom_cmd_data = buf;
( ]% H) N R/ L- Q5 Q7 p4 P - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
8 G+ A3 g R8 e8 N; T" Z - if (ret != 0) {
8 p0 H& w1 ^: `6 |* k0 w" `8 p - printf("Device %s read error.\n", E2PROM_DEVICE);
% V( p! r- R g/ {. g" D: f - return -1;* C ~+ I4 \4 h+ y( l$ X$ s
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- memcpy(mac, buf, 6);$ o- J: ?! j9 J0 E. c: d: u
- memcpy(stbid, &buf[6], 18);5 j+ Q, d5 B/ y3 G) P
- stbid[18] = '\0';
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- return 0;
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; o5 G9 x+ N9 D. V- static int writeparam(unsigned char *mac, unsigned char *stbid)8 |2 V; L+ B2 N6 C! j0 ~- Q/ P
- {% q) j0 N* f8 c" l
- int fd, ret;
) @* X5 }3 D1 j1 B - e2prom_s_cmd arg;
, n1 h6 L" Z3 d D$ E, E! i' y - unsigned char buf[0x18];
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. F5 s: K: P$ t4 f5 \- memcpy(buf, mac, 6);7 n- N) A; [2 D2 {0 N
- memcpy(&buf[6], stbid, 18);
- l) Y. l2 S3 V! n( R `6 H, p% b - fd = open(E2PROM_DEVICE, O_RDWR);
( n0 q8 ?- d9 E, m/ t7 @ - if (fd < 0) {: D+ i% s$ _) T# H2 Z' M1 ]( W5 N
- printf("Device %s open error.\n", E2PROM_DEVICE);
7 I+ K( w9 [# F0 l2 }* R - return -1;
- k. Q; t7 s( \' ^+ _5 t - }
) @7 [8 u6 l) ]! N7 Z/ B0 [1 z: Q - arg.sub_addr_count = 2;
, t2 t2 g ]5 X: u: F6 Z - arg.data_count = 0x18;
5 J" k1 L9 g+ }- O8 e - arg.e2prom_cmd_sub_addr = 0x290;
2 d# z6 ?3 `9 K: T, T& Q. H - arg.e2prom_cmd_data = buf;
2 O8 z# N2 P l p# v( o. |$ e7 l9 s - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);: R4 Y/ o! T: z, I g+ b) g
- if (ret != 0) {$ e% S1 d4 I, H
- printf("Device %s write error.\n", E2PROM_DEVICE);
1 z8 ~. Q* f) _0 Y3 ^0 o5 D0 \ - return -1;( W& l( M5 j7 ]/ ?
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1 p- J& e2 o _3 S6 P# a- return 0;
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. s+ a7 E- T& L& K- int main()" ?7 B3 U; ]1 o1 x+ a. t, H) X
- {+ S& z" V- d! e- u% I' R
- char c;$ J6 m& p$ I0 J: ]
- int i, macs[6];* n, T7 B/ S/ e& l$ ?$ x
- unsigned char mac[6];
& H# K2 Z5 |( ?: g; X - unsigned char stbid[256];5 P6 A m4 E4 Q2 n' [; B
- 3 M" L L6 R% h2 w5 p* }6 i) m/ [
- if (readparam(mac, stbid) < 0)( k* G y4 G. q1 }, x& E6 {% d
- return 1;2 w5 b$ P7 a) o1 l1 d: E+ c
" a O1 W2 i3 d- M% S: k- printf("Current parameters: \n");
$ z0 j4 E s5 e4 R3 a8 ] - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);4 t3 {7 f8 g8 ] I6 [$ x$ B
- printf(" STBID: %s\n", stbid);% T3 ?/ ?$ A3 t7 D/ ^
-
: E: C8 Y" u, ^& h - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");$ I( ]6 H& l7 l- N
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {% B( Q, v3 J0 W9 a/ V9 M7 ^( }; n
- printf("Input MAC error\n");
4 [' k' w6 n) [' R+ C( z5 J: `( G9 _ - return 1; `. r) N( M- V9 H) q
- }4 M# S B; q& K1 i' K
- for (i=0; i<6; i++)mac[i] = macs[i];
6 F9 `2 c2 k2 F& J; j9 J - printf("\nPlease input new STBID: ");
+ ~4 O; H Q* r) R; L - scanf("%s", stbid);( r& P/ E$ f4 D6 s6 A! {. G6 D: o5 s
- if (strlen(stbid) != 18) {1 q0 `' H: v" s2 a- c
- printf("Invalid stbid\n");+ n, I& g- l6 L; a1 Q( `
- return 1;& D+ U9 @% K7 l+ Y4 N) K* i! S
- }" D( w& ?) ^0 a) _9 P
- printf("\nNew parameters: \n");! S) Z9 W& ]* \& E" ^) x3 b" ?- _: ?
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);0 J; S( F/ |3 F
- printf(" STBID: %s\n", stbid);2 H9 b2 U2 e( O# r8 |" i
- 0 [* B& b* z% `* M5 m
- printf("\nDo you want to change paramemters? (y/N) ");, R) Y' F0 u) y/ c' F: J4 s& {
- for (;;) {
8 b$ a( b" o0 x - c = getchar();
& M4 k* b8 |; }. O$ d. Q7 @ - if (c == 'y' || c == 'Y')
/ U& }! z: {* M* @* A - break;6 S& z' M3 b4 F, p
- if (c == 'n' || c == 'N') {5 m4 b5 V" F s. k7 Z7 r
- printf("\nAborted.\n");: J3 c! X4 Y' J4 T7 |0 x. f
- return 1;
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- }
, m" | a X7 _5 t3 g0 p* R' | - if (writeparam(mac, stbid) == 0)
! {# d$ m+ b& k0 _+ ]& j2 Y - printf("Parameters changed.\n");
- B6 Q1 x* h" g* q - j8 G+ w: l" z
- return 0;1 X5 k/ ~, n3 _$ `0 P
- }
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