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。* f( k* N0 t; e' c3 r1 z
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>( S, Z E% Z0 x$ l) p
- #include <malloc.h>1 S1 a( j# z# A1 q- Z0 _8 _9 ^. L
- #include <sys/types.h>
/ {# Z; j6 v! j$ B# K6 h: l - #include <sys/stat.h>8 q( V z/ e( ^* R+ _# _' B
- #include <sys/ioctl.h>
G, l$ w. R! M1 [6 t/ o: p - #include <stdio.h>$ k" p9 `2 ]9 d. L0 B/ Q3 ~
- #include <string.h>
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- typedef struct {
( _5 n% {- {) N I4 |7 r8 V - unsigned int e2prom_cmd_sub_addr;
( U) D2 b8 [ A2 G2 X* ~/ v% z7 `, S - unsigned int sub_addr_count;5 I3 q' R# \" b5 [8 g
- unsigned char* e2prom_cmd_data;3 ^9 R: t: w3 l4 M" Y
- unsigned int data_count;
) s4 G- N ]( m! ]! A' C- x0 { - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 17 ^/ q2 H" r4 K3 A
- #define E2PROM_CMD_WRITE 2 i' i0 T9 P- a6 H* V
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"0 t' X# E; r. q4 @7 T) K8 R. e
- N. j$ X$ Q4 x) m$ O1 D2 V- static int readparam(unsigned char *mac, unsigned char *stbid)2 l( F# p9 B4 @4 f6 C" m
- {
/ x3 I- B4 K) J - int fd, ret;; o' W# I9 |2 V& x
- e2prom_s_cmd arg;
$ }+ e! b6 m- U1 f* @! x* x! Y - unsigned char buf[0x18];" I8 ~4 D" f# c6 [/ M/ f
1 d# I& k F/ C3 i8 h7 f4 P4 J- fd = open(E2PROM_DEVICE, O_RDWR);, Z" s2 K3 Y2 K+ T- I; D
- if (fd < 0) {
* S6 P0 l$ L" Q7 w, J - printf("Device %s open error.\n", E2PROM_DEVICE);
" j x ?) C$ N( ]1 u - return -1;4 k0 y1 U j* J7 ?
- }
W' V( l* Y2 W; _/ v' S: T. o - arg.sub_addr_count = 2;
; _- m9 R2 z( G9 b1 d1 Q7 v - arg.data_count = 0x18;0 s T0 U+ }/ `8 B
- arg.e2prom_cmd_sub_addr = 0x290;2 `( ~& F. d; r3 h) g2 n2 h: E8 k
- arg.e2prom_cmd_data = buf;
) Q8 O( C0 z% P% d7 L$ [) ] - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
4 s' M. n; l2 n/ K$ g0 e% j# {- M: [0 g - if (ret != 0) {
) w5 x ?9 S# b, s6 E - printf("Device %s read error.\n", E2PROM_DEVICE);
; D# ^; ]8 t+ l' @ - return -1;" Z7 c; W2 p& |: ~# l* [
- }
! {* k: s7 G6 O* Z* j - memcpy(mac, buf, 6);2 S: d1 ^2 J$ v, ~9 X; G& n! {
- memcpy(stbid, &buf[6], 18);0 h' W' i9 F$ U$ P' O' I( n
- stbid[18] = '\0'; U+ R0 {# L) x ]9 H4 q
- . y3 h$ i) A+ I. a. {: D
- return 0;* f- D" t% j6 M$ s
- }; |% z8 `8 m! S
- 3 a W+ M' A. F, }
- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;/ L/ Q N" ^4 V" g( W4 Y+ R4 i) b! J
- e2prom_s_cmd arg;
+ n; T9 O5 @# ?% i; c9 ]; _ - unsigned char buf[0x18];
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- I3 A3 p* g$ j% ~- memcpy(buf, mac, 6);0 {2 T, l- {) G* t' L: E" ^
- memcpy(&buf[6], stbid, 18);
# ` T* O3 t" r. J# C2 t - fd = open(E2PROM_DEVICE, O_RDWR);
) y. i# I3 m* y0 y1 t - if (fd < 0) {3 I, N6 K6 B2 R) Y" o
- printf("Device %s open error.\n", E2PROM_DEVICE);& k) J; Q: g& C8 B+ N8 {2 b
- return -1;% f# Z. e% G9 v5 }4 Q
- }8 i+ _4 j, K' j! Q* m3 S' ~" q
- arg.sub_addr_count = 2;1 P3 S) f1 S0 C0 H+ m
- arg.data_count = 0x18;, E3 X) i- B* s/ O8 N5 y
- arg.e2prom_cmd_sub_addr = 0x290;1 `- C& n" @! `2 Y' Q) a* @
- arg.e2prom_cmd_data = buf;$ D& C1 z- k1 G6 ?+ M/ F+ C
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
0 k/ l. |2 M4 q+ ] - if (ret != 0) {% t2 H' J6 t9 v, ]+ O8 {
- printf("Device %s write error.\n", E2PROM_DEVICE);% z" n- R% C/ k J
- return -1;3 Q g( N: \: f, Q2 |
- }
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- return 0;) N, z7 |% X' Z' W ?
- }
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: _: M! _" c1 F- int main()- E9 ^# T- X& V- u3 L
- {
) u ^! y5 K+ c! k7 L - char c;
: a5 u/ p5 F$ y1 A0 V2 \ - int i, macs[6];: I* t. Y; G6 @- ~ t
- unsigned char mac[6];
1 w2 i. E9 n/ n8 t. ~ - unsigned char stbid[256];! L+ A- Y* \" l/ ]
- 3 Y7 d$ u7 Q: D) s6 x- h& R( E- i% c
- if (readparam(mac, stbid) < 0)! t7 e2 t( e" A$ r y
- return 1;1 Z7 \; K4 B" o- z4 q: Y
" |, [7 ^' K. U; F7 {4 o- printf("Current parameters: \n");
2 r8 N* U h n0 t2 ~0 |$ z - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);3 A$ E& G2 J2 c7 O
- printf(" STBID: %s\n", stbid);
& R# J7 {7 M3 c/ a5 ` -
" x7 K! z3 W& ^, v0 j. Z - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
& u3 u" K; C6 I# q G: M% h - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {1 R" @+ C! }! L+ W$ K7 H6 {
- printf("Input MAC error\n");- [% E3 A3 s% W- z7 x# E8 D
- return 1;9 p- k% C2 _6 a+ _# b" T
- }
. u P9 U$ N* R9 m; y9 X5 I - for (i=0; i<6; i++)mac[i] = macs[i];" h6 F5 q, |, i$ c i# N, s* N9 m
- printf("\nPlease input new STBID: ");
$ X" X7 L3 e, `% @$ _ R1 x2 b3 P - scanf("%s", stbid);5 A' ?9 S- w& |" n1 I
- if (strlen(stbid) != 18) {9 {: K* Z$ F6 w6 S+ I b6 u
- printf("Invalid stbid\n");* p; r4 t. W' d- g6 Z) `, v% o
- return 1;
' l1 R6 z$ t9 Y- v+ k: b Z K6 t - }
- A9 {/ w$ J! q# K& {8 ]9 T - printf("\nNew parameters: \n");, X5 u3 m }8 S' H0 H# t5 L
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
/ g" I$ x L! u% d% |2 ? - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");# P2 x! O& V# M' o
- for (;;) {2 a8 C5 Z, O& J0 K8 N
- c = getchar();( y" E$ I$ ]2 H$ c ~
- if (c == 'y' || c == 'Y')& v* D* S/ i& B
- break;- m0 K9 |( Y% c9 R. P' R5 S
- if (c == 'n' || c == 'N') {
% p& X7 r9 v6 h0 `+ P( e/ Z/ S$ s - printf("\nAborted.\n");3 S) H6 p0 }2 _
- return 1;! F' U: r7 ?; m. }
- }) U& U- m7 J- @! U) g
- }
. z% a7 p2 f1 @$ \7 E- k) m - if (writeparam(mac, stbid) == 0)
# A1 s) W- T; |, `' Q3 D - printf("Parameters changed.\n");' i q" S2 a* _ a6 M! |2 @
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- return 0;- p2 Q4 ^8 D, z7 n2 }5 O: ~
- }
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