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。
5 |- R* L7 ` T' L8 ~& N需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>. ^# F) O- ~3 h! ? ~& }; Y
- #include <malloc.h>5 R- c* W. _/ F* k+ k
- #include <sys/types.h>
* |9 m- D3 c4 X, d& V# u0 G6 \. t9 D2 b - #include <sys/stat.h>, Q% R1 o9 w6 `3 O& S% \7 }$ H* |. R
- #include <sys/ioctl.h>, [& }1 b( @' P8 m
- #include <stdio.h>
0 b0 F* ]3 h. L. C/ y- t e0 S - #include <string.h>
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) I2 }! E+ q; N: h6 A- typedef struct {( m$ d9 E8 u" w X c1 J
- unsigned int e2prom_cmd_sub_addr;% ]% r# Y1 x9 Q' C+ k0 Q' x
- unsigned int sub_addr_count;
! Y% p( m- U6 ?: s5 M! j5 z - unsigned char* e2prom_cmd_data;, d( G7 o& F: Z5 b- T
- unsigned int data_count;# @5 E* @0 m; P7 p
- } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1/ w% K5 U3 i4 f
- #define E2PROM_CMD_WRITE 22 T/ S. I; b7 F- P/ @4 f4 [
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"; a) W# H' }6 D, ~# t
: o K8 ~- V& f+ T5 ?- static int readparam(unsigned char *mac, unsigned char *stbid)
8 t- A- R: o$ T; q# u! h - {
! J7 E6 ]# y& N - int fd, ret;
: b+ f8 R: ]! h- x& r( f0 } - e2prom_s_cmd arg;0 Q# ~( E4 @) C6 O' d7 E, t5 k
- unsigned char buf[0x18];
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8 W! Z$ ]4 m! C' }8 I- fd = open(E2PROM_DEVICE, O_RDWR);
: K! @/ g) k. \5 d' T' G/ D& F - if (fd < 0) {5 v& {5 D( e5 I* S2 G
- printf("Device %s open error.\n", E2PROM_DEVICE);9 E( T8 a- `, G( }/ y2 p
- return -1;. [' L I, W/ x% ?
- }
# y/ B8 ]/ @9 p- H& c1 B" | q$ i - arg.sub_addr_count = 2;+ c) h) j9 `& \$ e) |
- arg.data_count = 0x18;+ ^. o1 [& _; R- C7 X9 t
- arg.e2prom_cmd_sub_addr = 0x290;3 E4 W5 y* z: A9 Q% @ i. D+ g
- arg.e2prom_cmd_data = buf;6 \0 `: E9 n" @7 q4 ^4 Z) ~+ i
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
+ m$ @4 |" ~- I* ^. [ - if (ret != 0) {7 t! f" e: c" G L- I+ O* s% M
- printf("Device %s read error.\n", E2PROM_DEVICE);
7 i( m n; E {8 W+ C, h/ g - return -1;1 H) a9 ^# e$ C! U" y) e L* |
- }0 X# o. V# I# b% q; A
- memcpy(mac, buf, 6); d3 P- l8 ?% ~, U( I( ^; S
- memcpy(stbid, &buf[6], 18);
9 k2 M; ]4 b) b( [& f, v - stbid[18] = '\0';: f, x$ b, n8 N6 u
+ k0 F) e/ e" A; {. @- return 0;5 C( s/ y C3 E7 F
- }, H& m. O1 ]& R9 s: B
- $ T1 d0 q# E Q9 s. F! g0 V
- static int writeparam(unsigned char *mac, unsigned char *stbid)8 Q& o# c5 e7 b9 i# E) n5 _
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- int fd, ret;: x) w6 O u+ R/ p3 V4 l
- e2prom_s_cmd arg;
! O2 D# X" H- \0 C - unsigned char buf[0x18];
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3 o6 N6 K6 b: O$ m8 u P- memcpy(buf, mac, 6);- S! Z4 x/ C, w: X
- memcpy(&buf[6], stbid, 18);
* [5 r1 p: x) |3 h8 d# G - fd = open(E2PROM_DEVICE, O_RDWR);2 s" t7 M2 n' U) ~/ G
- if (fd < 0) {7 N! F5 ^- t3 ?1 A+ h5 H k8 U/ \
- printf("Device %s open error.\n", E2PROM_DEVICE);
+ V. s R$ [5 g - return -1;
# s* J! Y9 d, I7 F: q3 a" X2 }& {# W - }, R2 g) N2 Q9 i* @7 [; p( l; h; a
- arg.sub_addr_count = 2;! W9 v* c( ]7 l* O" x b, E
- arg.data_count = 0x18;* r# {' X, X! [" [
- arg.e2prom_cmd_sub_addr = 0x290;
5 g, [% z4 ~3 g" \ - arg.e2prom_cmd_data = buf;
, f8 a3 n" u; N6 Z" p7 T - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);; H0 Y" Y1 a% h
- if (ret != 0) {
5 {+ q3 |/ }6 ~) O - printf("Device %s write error.\n", E2PROM_DEVICE);
* d# h W9 A- G/ j3 a+ A, f9 H- @ - return -1;" `. @, l9 Z( j" g# [4 J
- }
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- a- ~ `0 J' W: Y E- n5 G- return 0;
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* y2 Z1 F8 o/ i- r) r7 c4 |7 q- int main()* W3 L& z9 \3 b6 q! z" v
- {
t5 P& S% T) r4 d* _. l: e - char c;
8 ]& W( ?2 Q% |7 M - int i, macs[6];+ B% I0 O8 M t+ ~
- unsigned char mac[6];& |) H& e" h) Y8 N* ]
- unsigned char stbid[256];2 N9 G8 O+ D! V# Y1 n: S4 O: c
- 2 |( c3 x' Y' X4 }/ l
- if (readparam(mac, stbid) < 0)
9 `# h3 }, Q | - return 1;
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- printf("Current parameters: \n");4 T# f. u- o6 k0 n
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);# G' w4 v6 V; a" [& \6 [
- printf(" STBID: %s\n", stbid);
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- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
, }2 ~; z$ m2 R2 I C- k - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {& p8 ]- \ e: e. S
- printf("Input MAC error\n");
+ m5 k' L7 T+ ~; L! s - return 1;
( \- h# `" k' Y8 f2 W1 I - }
, {/ B& H, l2 f ` - for (i=0; i<6; i++)mac[i] = macs[i];
: d5 \1 F9 N1 @4 T5 M! O( b - printf("\nPlease input new STBID: "); ^7 E+ F" _; B5 ?( `/ L
- scanf("%s", stbid);
Z \6 c3 M. t - if (strlen(stbid) != 18) {
- M S' @# V/ O0 ]3 R+ _( ~: X' U - printf("Invalid stbid\n");
9 m4 [' P, P$ g0 T' @: G - return 1;7 k& {" k& |8 Q, B$ r* Y6 U
- }4 [4 i* x* T6 h3 V! J7 A
- printf("\nNew parameters: \n");
: r `# A8 s) d. R8 O - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);: f6 B) [6 Y* B0 Z; t
- printf(" STBID: %s\n", stbid);
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1 O' N9 n( O; e+ v3 r+ ?/ n- printf("\nDo you want to change paramemters? (y/N) ");
- \ f* D a) M' Z. [+ I j - for (;;) {
6 I/ L8 q6 K9 D9 ]& E - c = getchar();
( F5 k& {9 L* k8 Y - if (c == 'y' || c == 'Y')$ i8 z* V- b! Q% `: ?8 A
- break;0 I( {' N! ?3 o
- if (c == 'n' || c == 'N') {
9 r! {( u h( O! T- w' N - printf("\nAborted.\n");" ?) G0 \9 H- y
- return 1;
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- }
5 Q7 a0 J5 L& h+ }, @: N - if (writeparam(mac, stbid) == 0)
. p9 e, G, {6 Q+ Z# {( O6 F8 H - printf("Parameters changed.\n");
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0 _' T4 r3 {1 ]/ N% v- return 0;
) \: x* j I" f - }
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