本帖最后由 0522 于 2012-3-21 23:04 编辑 f3 i+ R: |4 P/ V: L" X( C) [7 A
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修改的代码早有了。到今天不会编译。
2 t+ r1 }2 K" [- u) u1 @/ [需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>; k- f2 B0 t% H4 m' _7 B. `/ g+ _0 P
- #include <malloc.h># l. H" J3 _. F- b# R
- #include <sys/types.h>% d' D1 C. T& A' F
- #include <sys/stat.h>
& b5 u# z4 h6 C - #include <sys/ioctl.h>
; X J& w: `) n6 w: Q - #include <stdio.h>3 Z7 F1 C. ]5 n/ @+ N
- #include <string.h>
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- typedef struct {* d1 ?5 L/ Q- p4 i5 Q
- unsigned int e2prom_cmd_sub_addr;1 I0 O" ^0 a; h0 [+ c$ l( O
- unsigned int sub_addr_count;
4 t* S4 j$ r, r6 M3 e - unsigned char* e2prom_cmd_data;7 }' ?/ L X1 q6 f& w6 B0 P
- unsigned int data_count;
/ Y" M7 [- l0 C: A - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
& |: T- ^2 W* T - #define E2PROM_CMD_WRITE 2
& r( y9 W: i, i# U3 S9 b: B' _: Q - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"4 J6 f2 w1 _+ m9 m: m) `+ M" v2 n
- ' e. t5 U- d7 G. h
- static int readparam(unsigned char *mac, unsigned char *stbid)
- B# @ t# K* C$ A' ^: K - {
9 k& r. k" l. g& j - int fd, ret;9 ?; Q" `( Z$ j+ c3 v
- e2prom_s_cmd arg;
" `2 c# f: l. V( {; p5 ~" p - unsigned char buf[0x18];8 K: A: e @, j$ }2 k0 r
% F8 |9 o0 X' Q8 i* ~9 w+ T0 I- fd = open(E2PROM_DEVICE, O_RDWR);* y; { n/ H F+ x9 H, ?' a$ ~
- if (fd < 0) {
; ]+ b1 G5 g' c0 U7 i) _ - printf("Device %s open error.\n", E2PROM_DEVICE);
) X' M1 L3 Q: f; h$ n/ Y+ |+ B2 D - return -1;
6 w. C* \! O3 c1 K6 \; S# _" y - }
* V3 R4 X' c/ W. I3 X - arg.sub_addr_count = 2;0 Q! F2 I g! A, X& y. Z
- arg.data_count = 0x18;/ c( E" _' }4 d
- arg.e2prom_cmd_sub_addr = 0x290;
, E# B7 [( s, K. \) ^ h1 u! _ - arg.e2prom_cmd_data = buf;" c: s; H3 F0 @% J- _9 _! c
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
y, W6 q" x9 e. L9 ~ u/ q - if (ret != 0) {
% `& R$ s6 E" w& h - printf("Device %s read error.\n", E2PROM_DEVICE);
' U+ |/ H+ F5 t" H1 v9 @ - return -1;
' h2 z. i0 Y- ]% e ] - }; C( X2 i F4 \& ?8 b# M
- memcpy(mac, buf, 6);7 |6 K7 z" E! o2 C: Z! A$ @
- memcpy(stbid, &buf[6], 18);7 x5 j3 x6 a5 S2 Y
- stbid[18] = '\0';. F. E0 {, G+ x' k
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- return 0;5 I) _0 L5 ?1 X3 r7 e* u
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- static int writeparam(unsigned char *mac, unsigned char *stbid)# h- Z$ w% M/ N0 P% J+ }5 T
- {4 @0 Z l+ M) \4 I
- int fd, ret;
* b' T- D x- i8 i/ k5 l% u - e2prom_s_cmd arg;
# n# p0 l4 x( u: X - unsigned char buf[0x18];- ~$ q1 U+ \+ @* Q6 c
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- memcpy(buf, mac, 6);/ @8 [. T* e( F* T) X- B
- memcpy(&buf[6], stbid, 18);. Y- o0 O9 d) D- c
- fd = open(E2PROM_DEVICE, O_RDWR);( M! W/ V/ n* v
- if (fd < 0) {
# e+ S/ _! p8 S+ I, n! O - printf("Device %s open error.\n", E2PROM_DEVICE);
* _! z( t' _' \) Q" W - return -1;
' t2 Y8 q& Z! ^# I - }
, @6 e: @% J/ o - arg.sub_addr_count = 2;
% H1 s8 T+ h6 d0 D3 M8 J' c - arg.data_count = 0x18;9 c; D% I+ l# d" n8 I
- arg.e2prom_cmd_sub_addr = 0x290;
3 @' r3 W% H V# U( z$ L - arg.e2prom_cmd_data = buf;) Q5 o- k( [3 _. O: Z' c1 {6 M7 y
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
9 p8 b+ n C, a) u2 d. H" k - if (ret != 0) {# P X! m% x5 `' X% h
- printf("Device %s write error.\n", E2PROM_DEVICE);
: M# F8 z: l! W - return -1;
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- return 0;% [. W$ u; g+ S% @
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$ e# g# `) F+ x C6 }- int main(), b. V) z( D; L$ M% i% u2 `0 x
- {
* x. J; G: s7 M - char c;5 R' j( e2 f6 z y6 I8 Z
- int i, macs[6];0 ?3 @' O' D$ x1 H
- unsigned char mac[6];
- J# T1 C6 q6 [" l H, q2 J: n$ M4 z L - unsigned char stbid[256];
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% L. L* c1 F8 K& y# D2 Q2 z- if (readparam(mac, stbid) < 0)$ S4 Y7 o) d; f- N) m/ o/ i/ p
- return 1;& o0 w+ |6 A6 ^ G- S0 `3 Y
2 w. G4 ?$ k9 M, K, V4 `- printf("Current parameters: \n");' z& ^& D% G }2 v, f( K( L& ~
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);/ _& E9 m& Z6 A8 L
- printf(" STBID: %s\n", stbid);9 g$ }( A v8 J" A
- # l, c( k6 F L% [3 r/ A
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
& b9 R" S0 Y0 I6 r- d- R: ^& [3 \& \: @ - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
: |9 W: C% k! D* F, r1 o - printf("Input MAC error\n");
2 k; O+ x7 j( F, R3 d6 ` - return 1;
. j ~0 V4 v9 P2 I+ D" t - }
. C$ s% q6 e P4 Z - for (i=0; i<6; i++)mac[i] = macs[i];+ H0 ] ]5 l# P/ w/ O& W( Q
- printf("\nPlease input new STBID: ");
* g4 Q# Y( ~% ]6 Q% c- k# D0 K" x - scanf("%s", stbid);( A ]6 Z& z3 t! ?! x$ `, ?
- if (strlen(stbid) != 18) {
' t$ E b& J# T& C - printf("Invalid stbid\n");
$ c" w* Q# C9 A3 g+ [' ]$ f. J' } - return 1;* K8 d* j- w; G: r) `% A
- }8 [/ P: m" P4 k$ D! M" F
- printf("\nNew parameters: \n");
7 V; i$ d- j6 ~ t! R - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);. G7 B7 h+ i; u, f' W
- printf(" STBID: %s\n", stbid);
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. {7 g$ Y, |; {; L G* g- `- printf("\nDo you want to change paramemters? (y/N) ");
( j& w' x4 x# D$ ]! C2 z4 l4 C - for (;;) { u0 j1 U$ u! V8 v( g
- c = getchar();
2 F6 Z2 f7 p; z. E7 H+ R) a) w - if (c == 'y' || c == 'Y')) G6 F5 n# C$ Q9 a2 \* V2 W, e; ^: p
- break;' G, c4 B9 k u3 f0 F
- if (c == 'n' || c == 'N') {* _, Q1 K% u: C
- printf("\nAborted.\n");5 b4 B+ i% j/ S, ^9 C
- return 1;
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- }7 \* r6 ~: B' _$ `& a! y! p6 C5 f
- if (writeparam(mac, stbid) == 0) 5 p) S% p- A' P. [
- printf("Parameters changed.\n");
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- return 0;
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