本帖最后由 0522 于 2012-3-21 23:04 编辑 + v3 @0 N' u3 Y- K6 H; e8 C2 V
/ _7 j3 w. X p- p+ i4 w- r( G4 L修改的代码早有了。到今天不会编译。% t# c$ `: X& N7 \2 l$ }
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
. j- E) E) }4 A) t - #include <malloc.h>$ G7 x+ [2 |$ h3 ~ W
- #include <sys/types.h>7 B5 R& ]; r/ D5 G* W
- #include <sys/stat.h>% ?8 k! H% G) F% S; @
- #include <sys/ioctl.h>
* ^0 s/ a+ V# K6 w8 @: p. q9 Y4 F8 J - #include <stdio.h>
4 [* b! `" J- Y1 f, D0 s - #include <string.h>
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- typedef struct {6 _6 s) W0 p3 t
- unsigned int e2prom_cmd_sub_addr;
( D9 d% o6 @: _) P' Z0 ? - unsigned int sub_addr_count;7 J' M& F, h" l, C% }" t
- unsigned char* e2prom_cmd_data;- R, X# Z+ v/ b9 M& W
- unsigned int data_count;
/ ^6 A1 |! L: V! D" o. r - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1
/ _ D' j# e8 I% A1 H - #define E2PROM_CMD_WRITE 2' ^4 t/ n# M" ^, r& i/ N
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"4 Y+ L$ P; E! ~* c; V
" W( {3 ~$ y1 S/ H- static int readparam(unsigned char *mac, unsigned char *stbid)
" L" ~+ A1 B; N- i9 x- B4 v - {
) |5 ^4 O9 v5 q9 W3 X - int fd, ret;
; d) H! L8 q/ i* e! c8 j; q# T' g - e2prom_s_cmd arg; Y! |1 M' D! O+ @# E' U" t6 i
- unsigned char buf[0x18];# C# [1 S) S) i
- 6 ]& a6 d3 c4 L- s4 S$ V" W3 E% Y
- fd = open(E2PROM_DEVICE, O_RDWR);5 }' N$ M: X6 d- }
- if (fd < 0) {! f' X, ~7 M9 S( K @
- printf("Device %s open error.\n", E2PROM_DEVICE);
) ?4 s- q. _4 J5 A2 {1 l - return -1;
* s6 @5 g9 G7 O* ] - }
7 B; B% T7 D0 }$ C, v& Y - arg.sub_addr_count = 2;8 _( Z( Y! j9 X0 k5 [* U
- arg.data_count = 0x18;
( _9 ^6 O0 Q+ N4 M" s" Q' V e - arg.e2prom_cmd_sub_addr = 0x290;
( H/ }! y4 f u: J5 y: R8 j k - arg.e2prom_cmd_data = buf;
4 S2 ?* j9 ~$ `" E - ret = ioctl(fd, E2PROM_CMD_READ, &arg);0 T) k ?! L6 T
- if (ret != 0) {1 D |, k3 B# H5 [
- printf("Device %s read error.\n", E2PROM_DEVICE);6 |( O/ _ Y7 G* i' q; V
- return -1;0 y+ D* j9 H5 @: x4 z, {
- }5 m# w* H U" Y$ F X0 v. U3 x
- memcpy(mac, buf, 6);: j& e7 _8 t& r/ I2 U P. d
- memcpy(stbid, &buf[6], 18);6 T% O6 v. i, H. {& |4 q
- stbid[18] = '\0';* @, ~: x0 m+ ]3 N6 O) J9 U& R
- 8 w7 M6 W7 Z- y: y. `% G
- return 0;0 V# n7 w2 q2 m. H, v
- }, z5 a8 Q3 V) {8 P
- 9 ]3 h2 z \2 N, s( N
- static int writeparam(unsigned char *mac, unsigned char *stbid). |8 |0 \3 d7 D8 h, i( F% O3 G
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- int fd, ret;! g' e: M: Y) |
- e2prom_s_cmd arg;
/ `0 D! q; P& G5 @ - unsigned char buf[0x18];* T$ W- `6 O. ~1 ^- r) f
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- memcpy(buf, mac, 6);
' I7 T' V5 [4 ]& s5 F, K - memcpy(&buf[6], stbid, 18);# [9 {5 f' J9 I+ W
- fd = open(E2PROM_DEVICE, O_RDWR);
% n# M& Q( x, D4 u- U, r2 M" @8 P7 C - if (fd < 0) {% k1 p7 C8 s' V9 U8 F4 B7 v: F
- printf("Device %s open error.\n", E2PROM_DEVICE);
* \& N( A, t8 H( Q - return -1;
+ t' J; N- s0 \/ } - }
' V; u& p! g# w9 U" Y - arg.sub_addr_count = 2;1 P3 c. B) K9 e& D' M m: S$ ]2 G) Q' O
- arg.data_count = 0x18;+ |4 n4 s: e1 _& f
- arg.e2prom_cmd_sub_addr = 0x290;( T- @" r* U: Y+ M
- arg.e2prom_cmd_data = buf;/ K" H/ p! H6 L0 S' g/ v
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);# F0 J! }3 J- B( V* o9 i( x) O9 Q+ d
- if (ret != 0) {; N4 J# Q7 l' e6 w, z. [0 X' @) i
- printf("Device %s write error.\n", E2PROM_DEVICE);
0 j6 C# t" @6 @ - return -1;' N' V- U8 ]% |) I" e I$ \+ w' v
- }
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- return 0;
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- 2 S& G1 n0 \+ V
- int main()
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- char c;
- g. W/ y; u5 _' k - int i, macs[6];) P$ B+ r7 ^+ c, q5 s
- unsigned char mac[6];
# B9 h2 s E8 }# P5 x - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)
+ j) I( t% w* H' s - return 1;% d) T% a6 |1 ?8 D4 \8 ~: O
- 0 \7 @% A$ }7 Q' a
- printf("Current parameters: \n");7 O! r4 S7 D8 S! \
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);2 d% A0 U1 Z- ~1 p" K9 R
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");+ p, [8 T$ J3 k8 ?
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {# e& I9 g0 A5 A
- printf("Input MAC error\n");: u/ K# y2 p* b5 U. M; J7 P- ~
- return 1;/ G7 x; P# M, C' z H' F, [8 S# _' s
- }
1 v3 p: X& v1 o+ U0 ]% O - for (i=0; i<6; i++)mac[i] = macs[i];! c7 _0 x, n- c* ]# Z4 x
- printf("\nPlease input new STBID: ");, b! Y! n; }( h4 e g
- scanf("%s", stbid);* T/ f' ]0 y) } f* |
- if (strlen(stbid) != 18) {
* ~5 H ^8 E; W. F6 l' p - printf("Invalid stbid\n");
* a7 K$ H5 t2 N8 g$ ~ - return 1;
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- printf("\nNew parameters: \n");
4 k6 K* h# Z p4 S - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
$ m* J0 I# ?* {! k& J; }* m - printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");
; R. f8 L/ ?, e3 }1 |8 _5 r V - for (;;) {( L* c0 ~4 j8 _
- c = getchar();
) W! L0 {% E7 t( t - if (c == 'y' || c == 'Y')5 P. p: f- U6 S
- break;
$ M- P+ u- p7 t0 w - if (c == 'n' || c == 'N') {' V* g, l" y: w8 t) S
- printf("\nAborted.\n");! P. k7 }; O6 ~) }9 I4 c
- return 1;7 ?( x$ @ ^1 }0 M% _
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- }" [. _) j+ e# v
- if (writeparam(mac, stbid) == 0) ' l$ }2 z" h: ~0 d( _: G! q8 F: ]
- printf("Parameters changed.\n");
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: R! A, {; L: H" O- return 0;
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