本帖最后由 0522 于 2012-3-21 23:04 编辑 . J. }2 x0 z8 h1 Z9 D
; @1 [1 e) J4 X5 x# P1 [3 X; F P修改的代码早有了。到今天不会编译。
0 I: ]. q$ p, Y9 |3 e& G. L需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>: O0 ]7 u" y6 N) l8 n# G
- #include <malloc.h>, I( J7 [( [- @! }; M
- #include <sys/types.h>" F! D4 ~- j: {% [0 Q4 t
- #include <sys/stat.h>% y3 u( ?& ?( _: |! S
- #include <sys/ioctl.h>
2 x% k3 V9 S' G/ T1 L - #include <stdio.h>8 Q0 c" I e- t9 |5 p% F3 \
- #include <string.h>1 M# r4 q$ W4 e+ ]: L' _, `
% s' S! o8 |3 X- E4 z- typedef struct {8 u: h# O. Y0 E* _3 w
- unsigned int e2prom_cmd_sub_addr;7 `$ i' T+ n1 x# N- Q" D* P& b" p
- unsigned int sub_addr_count;1 ]8 [; Z- G0 q* n% F2 g& g
- unsigned char* e2prom_cmd_data;8 G2 X0 y5 q w" m. }0 |
- unsigned int data_count;
0 X4 j* u' A4 {- \3 U+ t - } e2prom_s_cmd;: E) p/ c. m3 s
6 v% L( G$ e. B! s! ~: z- #define E2PROM_CMD_READ 1- Q7 v& B: j& |0 N8 z" H
- #define E2PROM_CMD_WRITE 2
( ?" H5 m4 a2 {$ T- H. g - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"+ n3 {: Q" l; U, a
' g6 B# F7 E1 T- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;" d+ R, P% P( Y9 z1 E! a
- e2prom_s_cmd arg;' ~# Q# q& t3 `1 T% D
- unsigned char buf[0x18];1 W' S! ]" b+ l1 U1 @( i
- 5 p- s" V6 j& v4 h, s- ]
- fd = open(E2PROM_DEVICE, O_RDWR);
6 R" r' C; l$ m - if (fd < 0) {
) g& Y' F1 I) E8 d - printf("Device %s open error.\n", E2PROM_DEVICE);
, m; M+ I$ |& h. B - return -1;
7 Z5 B" ^7 g6 J - }
# p9 \+ m, e0 K; f' v/ g L9 R - arg.sub_addr_count = 2;
* C) \4 z0 G* b+ `5 m - arg.data_count = 0x18;7 S I- x1 [5 B
- arg.e2prom_cmd_sub_addr = 0x290;* `! @+ Y2 g) E1 _( L' ?: ?4 ~9 ^
- arg.e2prom_cmd_data = buf;
& T" L2 [% D6 C: Z/ [ - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
V1 D5 _7 X \$ y0 q - if (ret != 0) {/ b" j; t' y/ C1 Y
- printf("Device %s read error.\n", E2PROM_DEVICE); j* B; d( _6 \( `' k
- return -1;
0 M/ ]/ z1 {+ i/ H - }
/ X2 d4 T7 E, \8 d1 @3 J - memcpy(mac, buf, 6);
( |0 f s" k! G& k! j - memcpy(stbid, &buf[6], 18);, b2 w" r5 ]- l, o
- stbid[18] = '\0';% E, t( u3 q; `5 l+ M; R/ y; [
- , Z1 ?0 c5 k8 l
- return 0;7 T* ]* F% f* \: ?/ [) y
- }6 V2 x# l8 e0 J
) B3 \( b5 K. Z9 {; r ?- static int writeparam(unsigned char *mac, unsigned char *stbid)
* C V D+ o. c5 x @ - {
- V# W0 ~9 F4 `* d: H$ \6 `" C7 t - int fd, ret;
0 p8 n$ U$ F: z - e2prom_s_cmd arg; i* i5 m3 b4 J [/ L* q) u- ^
- unsigned char buf[0x18];
* ]4 F2 H+ e: ?7 U2 B$ k
7 j' }! G, _% T- memcpy(buf, mac, 6);5 t4 r" m- J+ [. Z+ B: L0 W4 v
- memcpy(&buf[6], stbid, 18);" L0 h; P, l# a; X1 a
- fd = open(E2PROM_DEVICE, O_RDWR);
) o% g) l* Z( ?2 u - if (fd < 0) {
8 j3 C( B4 r) C- r - printf("Device %s open error.\n", E2PROM_DEVICE);# L( x; p; S0 r( Q P
- return -1;
: b9 W3 @2 ]4 j1 ^+ O, m$ h1 H& u+ \ - }
( S% `0 D6 v( H! X - arg.sub_addr_count = 2;6 J- B% q% R. O
- arg.data_count = 0x18;; K% X( D& Z% {# `& Z: a+ p8 u
- arg.e2prom_cmd_sub_addr = 0x290;7 M/ n' v6 P) W# `. [+ [4 Z2 w* U
- arg.e2prom_cmd_data = buf;( a7 T5 h, o8 Z/ K* @* {) T# b
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);- Y3 K5 f* v0 k$ F+ \
- if (ret != 0) {" h& _2 h. q$ f
- printf("Device %s write error.\n", E2PROM_DEVICE);% k* r, ~0 i& C/ X1 Q, Z/ D3 ~
- return -1;
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- return 0; c$ [* f& L# t' e; T9 p! L, ^
- }
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3 C& a+ v$ B" d; J; ]5 k- int main()
- w. Z+ T; m6 Z" z' b0 k" k8 \ - {
) Z& u; F8 P# o; |1 N - char c;
( c- \1 D. W8 ~% o5 G j p ` - int i, macs[6];2 r ?6 @1 Z: w* I x, P
- unsigned char mac[6];
% U# V/ V J( u; [1 [ - unsigned char stbid[256]; F5 p! f" f. f# L0 V, z: f& d) X9 O
0 g/ {+ B8 j g( ]- if (readparam(mac, stbid) < 0)
: z6 D j3 B+ m - return 1;
2 ~. J( C1 e! G$ i - 7 o" @6 Z8 l/ Q/ `4 d
- printf("Current parameters: \n");7 f3 l2 M2 Q6 O, {
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);1 y% U+ Y1 X' Z* Q
- printf(" STBID: %s\n", stbid);
8 h2 X- W* t2 l& |2 \ - ; Z. ?. ?0 b- V) P) V8 N/ l
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
7 q" Y0 e9 P L1 z$ h' ^" g( B - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
% {! b. R! W) R4 f4 H - printf("Input MAC error\n");
% v) i' C! Z }: ^; Y0 u0 R - return 1;6 ]0 t: S/ c; P! Q
- }
A3 n5 L# W! W - for (i=0; i<6; i++)mac[i] = macs[i];5 A L8 P0 X- }, Z$ z) B8 e4 b# t3 W
- printf("\nPlease input new STBID: ");1 `( T( X% B, j. s
- scanf("%s", stbid);
# \, j$ s" V6 g. R; g$ y1 K - if (strlen(stbid) != 18) {& I. a# |! p% D D# C+ U/ S0 k( P
- printf("Invalid stbid\n");
& P/ ?" E+ A$ g: |+ a7 ~ - return 1;' B( Z7 `1 R: y/ u, _, D( r
- }
9 i; D* r9 B5 b1 M o7 {9 C - printf("\nNew parameters: \n");
0 N( o5 R B/ q" X - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);% Z7 y8 l( j6 `
- printf(" STBID: %s\n", stbid);
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P/ s& k. {( V5 b" m: b- printf("\nDo you want to change paramemters? (y/N) ");
' a1 ]% g& g l+ v - for (;;) {5 R3 A' Q* t* v" R9 q
- c = getchar();
- w, y. h6 V# z" H/ h - if (c == 'y' || c == 'Y')
d& H) W' _4 [/ o8 o) {$ n - break;
. k$ O' }0 F9 u9 C' I2 O9 | - if (c == 'n' || c == 'N') {
; W* x: E( J, v0 Y+ d7 R9 E. l - printf("\nAborted.\n");
% B7 m* N6 e: | w) F - return 1;
7 W+ Q3 K# |/ Q5 N. d6 j! T - }
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- if (writeparam(mac, stbid) == 0)
3 ? v& e# `6 I9 K, k - printf("Parameters changed.\n");1 v& E3 [5 ?# j/ d! P- a( T
! t: Q' `4 Y7 v8 ]3 P3 _: C- return 0;
% m* `# V. s, f" p: G; }" d - }
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