本帖最后由 0522 于 2012-3-21 23:04 编辑
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- ]* ?# ?) c" G0 y修改的代码早有了。到今天不会编译。8 ?- @( h [0 ^" T" `
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
5 A# S* e6 [* L+ h, a. b - #include <malloc.h>
. T& f. v2 d* q* K5 h' R5 ]. M - #include <sys/types.h>" \9 s( n: ?% Z2 h ?: A
- #include <sys/stat.h>$ j1 L* x J* F/ x8 Z2 n
- #include <sys/ioctl.h>
/ m, G( j9 g9 i5 {; X4 Y5 Z - #include <stdio.h>
; \; n" L+ W S% o$ Q8 y# y. h( E - #include <string.h>
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- typedef struct {3 C8 i5 A+ n- _3 s
- unsigned int e2prom_cmd_sub_addr;! a( S' s/ a; Z
- unsigned int sub_addr_count;, e5 Y3 {7 K. e1 Y1 h
- unsigned char* e2prom_cmd_data;. [) `8 _9 ]" b* g2 n5 w8 m
- unsigned int data_count;
$ {0 j+ M J+ O$ g- B% K. W7 b; W3 L0 [ - } e2prom_s_cmd;
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* k0 @9 A: w7 Y# x& d( h9 W6 S- #define E2PROM_CMD_READ 1
, f" `( b' p) l+ D - #define E2PROM_CMD_WRITE 2- [/ c6 @1 d6 Y- f+ F9 U5 ^% P) h
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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/ S$ F) J/ r. i* c: G. G# ?- static int readparam(unsigned char *mac, unsigned char *stbid)8 G4 P7 S6 ~# @# ~
- {
) @( S) J( z9 K$ _: q8 i6 {1 V; u - int fd, ret;
, I7 @$ a7 G% ?! I$ y. b - e2prom_s_cmd arg;$ f" u0 `# e# Q! S: h
- unsigned char buf[0x18];
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- fd = open(E2PROM_DEVICE, O_RDWR);
& I$ y+ j4 i! p' _) S - if (fd < 0) {: }- l# _- G* X6 q" y- v
- printf("Device %s open error.\n", E2PROM_DEVICE);; v8 F0 `! O& Q7 S
- return -1;
, I6 z: R/ Y L - }
& m7 w' Z* [5 G1 G - arg.sub_addr_count = 2;
0 N5 \3 b, N6 n. L - arg.data_count = 0x18;
# ]- [/ T" W& T$ d9 h0 C' m - arg.e2prom_cmd_sub_addr = 0x290;
2 M3 S B* N# ?+ @: y - arg.e2prom_cmd_data = buf;% |, F3 S2 s' _2 \1 p& L. d
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);9 p6 t; C) W/ p
- if (ret != 0) {
% U+ o( h3 {/ j9 X& {" s" j' O0 G- H - printf("Device %s read error.\n", E2PROM_DEVICE);
; V$ J1 d! t Z) J7 w- ^ \( R+ ^ V - return -1;
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- memcpy(mac, buf, 6);4 @8 u4 S, a, d/ u {
- memcpy(stbid, &buf[6], 18);
% L& Y: K- b" k" C3 K - stbid[18] = '\0';! z5 J9 P5 Q9 _. D
# c, X/ l0 y2 a. U- d- return 0; ~2 F- R5 {0 Y/ q% I. N- X1 U( t
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
0 H i0 `8 W- H( w% a, q - {
V: N) U, e& _* Z+ D5 Q, k - int fd, ret;
2 P7 D5 v; ?+ D0 N - e2prom_s_cmd arg;' u* z' \* l3 t- t
- unsigned char buf[0x18];
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- memcpy(buf, mac, 6);% I8 @& m3 ~& I& ]1 k
- memcpy(&buf[6], stbid, 18);$ m. L; a9 l2 e; ~% X* z& J# t
- fd = open(E2PROM_DEVICE, O_RDWR);
& K, ]4 E' C5 i - if (fd < 0) {7 H4 A2 c! O! F) H6 U4 X- L
- printf("Device %s open error.\n", E2PROM_DEVICE);
0 S9 v5 ?0 }, M8 y7 r5 J - return -1;3 {5 T5 o% O( n
- }
: B2 J# f5 ]: v3 l - arg.sub_addr_count = 2;1 U6 J' R2 V5 d2 y% `* `
- arg.data_count = 0x18;
1 ^; ? H D/ G0 [9 P - arg.e2prom_cmd_sub_addr = 0x290;
5 u/ a$ Y" G" x) c' y7 C - arg.e2prom_cmd_data = buf;
( Y4 L. @% Y1 z, B" E. k - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);5 } j# m3 H0 V* E
- if (ret != 0) {! q+ R/ ~" J( B2 F" i& `/ v8 D% {
- printf("Device %s write error.\n", E2PROM_DEVICE);# J; s9 t5 F$ B% u7 e. _9 L
- return -1;
0 @* @' F9 ]- M+ X ` [6 G# f4 ` - }
. B) M# I/ [# H9 U8 }% Z' d+ l - 5 ?- W$ u$ ^) t2 {
- return 0;
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2 u# e; t' S5 L$ q. d% m6 D% c4 ^- int main()4 I8 B5 g$ }% P# j
- {( ~. i8 z4 P. O r7 R/ ?
- char c;
) z! a3 P8 \+ O2 a - int i, macs[6];0 [% V* v4 d! t" m. j
- unsigned char mac[6];8 t% E5 W4 N' R$ g, r$ K
- unsigned char stbid[256];! t+ e! ]; o j1 m6 V7 O
, v' V) q* F! [7 o- if (readparam(mac, stbid) < 0)' s0 z% D, t$ {9 Y4 \
- return 1;
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; A" k2 a0 e- f8 U- printf("Current parameters: \n");+ h, a# E: s& S) C
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);; C' x) J1 I% w
- printf(" STBID: %s\n", stbid);2 I2 u9 d0 h7 M+ [0 L, j
-
t j4 F* [+ M, y" ]- n - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
C# T( S7 R' f% h5 R3 | - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {) H3 A: K' d# ^! I( c' R" `
- printf("Input MAC error\n");% `& W# y' `+ T8 { o' F; v
- return 1;" d) J z2 }, Y3 A
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- for (i=0; i<6; i++)mac[i] = macs[i];/ }8 h1 G7 A: |
- printf("\nPlease input new STBID: ");
O! b+ U! |: A$ Y8 A - scanf("%s", stbid);) X& w4 c$ @: u
- if (strlen(stbid) != 18) {
) _: B/ ^9 T) V - printf("Invalid stbid\n");
9 z" X$ f# A' t) x8 B6 S# \ - return 1;
: Z6 |) f* z' k0 V, i0 X - }0 |9 u8 s. d3 y% k: b+ B8 D
- printf("\nNew parameters: \n");
. q& |5 h! @% k1 u8 N/ ^6 e - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);1 G. I7 ^" z1 t
- printf(" STBID: %s\n", stbid);
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- printf("\nDo you want to change paramemters? (y/N) ");9 E) b# y; P4 X# i. x& z3 @& n$ E
- for (;;) {2 X" d3 [0 i, j# c2 a9 g: R
- c = getchar();1 ~" y- o' W# _# W" T8 `" H
- if (c == 'y' || c == 'Y')* q4 B4 X- d- L3 C& h
- break;) y$ T+ A; L# q! t
- if (c == 'n' || c == 'N') {
2 O7 C/ ?# m! C0 t& ~ - printf("\nAborted.\n");
5 M% ^3 x4 s' x: B) T - return 1;, e( N$ J: u* p$ p z
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- if (writeparam(mac, stbid) == 0) . K( w9 n) ?4 [$ f* _* B
- printf("Parameters changed.\n");
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- return 0;, H+ H2 X) q, [2 z6 \- }' i
- }
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