本帖最后由 0522 于 2012-3-21 23:04 编辑 ' {: c( F* g9 m5 p
0 m. x% d0 `) `1 M# Q" C' r修改的代码早有了。到今天不会编译。
0 x& U* z( L+ W& y( T需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
* n4 `. u; f# l( F - #include <malloc.h>3 A9 h. M' H& n: V V
- #include <sys/types.h>
9 M3 t* D/ K* U% m' H; n - #include <sys/stat.h>2 n' ?9 P& s! F
- #include <sys/ioctl.h>* g0 v" K: _ }
- #include <stdio.h>
2 w9 q6 a% j! v7 z6 y* O: h- m - #include <string.h>5 c( ]! j7 S) `) B! t* T: L7 G7 \
) n% @. q" _5 P, O7 w- typedef struct { r# w' q7 a+ E3 c; q( C# f+ S# E
- unsigned int e2prom_cmd_sub_addr;3 D) r5 b/ g6 a% F- | Y% y3 t
- unsigned int sub_addr_count;
+ Y+ U4 ?' A/ M( z+ d - unsigned char* e2prom_cmd_data;
( A: d9 g6 V _( y - unsigned int data_count;
( |: ?6 H1 ?: d - } e2prom_s_cmd;5 u' W) F# Y9 X) J- R$ T
- 5 Q' C. K8 W) X1 M! N; u
- #define E2PROM_CMD_READ 1
+ w* N1 ~ q% m% u6 N& S% S& y9 { - #define E2PROM_CMD_WRITE 2
3 ]2 O4 H$ U" g# E# z/ i- s3 Q - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"$ ]3 e+ d6 S. t, J: z; u
- , m2 m5 n+ I' B% h, C5 J
- static int readparam(unsigned char *mac, unsigned char *stbid)
1 S5 I n4 y7 Q! { - {
, i# G5 k! Q$ |' }: F" ^3 c - int fd, ret;, }% o5 L# w6 m! U+ Z1 c8 }/ g# x+ W
- e2prom_s_cmd arg;! S2 z4 Y* U. o3 m1 l7 n O
- unsigned char buf[0x18];
8 s( r! m# E" D, J! m
. f; l6 Y3 z+ n# N8 C$ G- fd = open(E2PROM_DEVICE, O_RDWR);
( Z. ?- i' g' e. N- w8 |/ W - if (fd < 0) {
1 U0 } R3 ~1 v" U$ \: y! x# } - printf("Device %s open error.\n", E2PROM_DEVICE);5 H$ o! B. z2 s. k! ~* _
- return -1;1 S4 M$ C( {2 [7 f/ O4 F
- }
% H6 @: z6 g s: {8 j - arg.sub_addr_count = 2;
8 r/ O7 U* b3 n4 y2 T - arg.data_count = 0x18;# L4 i. a0 Q* v8 X# b4 ]9 L4 G, z7 H
- arg.e2prom_cmd_sub_addr = 0x290;, r" D/ }7 ]' j& D4 o3 t2 i
- arg.e2prom_cmd_data = buf;* U% f$ W0 p7 }( a" {! I! G8 M
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);' c: ~: C7 R9 ?5 l) j
- if (ret != 0) {
. u0 G7 \, N$ Y9 u5 n% z% L - printf("Device %s read error.\n", E2PROM_DEVICE);
7 e" q3 V5 ~4 `9 U- ]+ X - return -1;1 j) @. w3 b, S" `: l2 n& s, M3 G
- }
8 R% Y0 W) d; z8 \# c" ? - memcpy(mac, buf, 6);- a* F5 f/ J) \2 k0 R9 x% e
- memcpy(stbid, &buf[6], 18);
& P |; A* H0 R9 a5 K4 ~ - stbid[18] = '\0';; h( j, C2 H0 h+ C3 @6 I! ?4 T# s
- 7 ^/ X% Y( L9 V0 l4 b1 _% |
- return 0;6 J: N# A. g, |0 I! d5 v1 C3 _
- }
. `( h" t9 D' j1 I/ v
$ H! \& N8 a) o$ X6 d4 A$ d- static int writeparam(unsigned char *mac, unsigned char *stbid)' o. D% c& a5 _- R) {
- {
1 v% Y( v# I# j) L# \ - int fd, ret;
- H4 @% r0 P- [$ _ - e2prom_s_cmd arg;
/ Q7 f! s! c- O: T4 ?9 p - unsigned char buf[0x18];- e+ r1 t: g8 z6 d+ k
: N+ X$ p8 R2 s. [4 s- memcpy(buf, mac, 6);
# h+ v+ R" U8 r3 r9 ^( G - memcpy(&buf[6], stbid, 18);
; F9 v' m( ^- P6 N* J0 _! s- N - fd = open(E2PROM_DEVICE, O_RDWR);
# T% h% H$ r: j3 j+ S! f+ b1 J9 I - if (fd < 0) {
e" n, x: h* |4 O P: i - printf("Device %s open error.\n", E2PROM_DEVICE);
! ~2 o2 ~* m; _ - return -1;) g/ k0 ?" \( n _) K
- }
+ F! S c4 ~0 @3 o3 Y4 l; t - arg.sub_addr_count = 2;
: f( ^$ g1 ]3 H; q. A, e - arg.data_count = 0x18;1 N7 ^. L$ H! k
- arg.e2prom_cmd_sub_addr = 0x290;) U5 ~0 w3 d5 H: ^% V+ l
- arg.e2prom_cmd_data = buf;
8 c8 i0 F2 k! z1 ~ - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
+ _+ m' z1 {4 h) \ - if (ret != 0) {
$ a5 j% R* Q- V. ~ - printf("Device %s write error.\n", E2PROM_DEVICE);- a% [ ^3 T; T2 _! \$ ^9 I- A6 ?
- return -1;8 M$ a$ G: Q/ B! {( h, Z' Z
- }6 W- N0 e% R% [
M, q# Z* p9 r0 I1 n# ]4 M) y" l- return 0;% t0 ~( X9 U3 o( N
- }
: K6 x. l3 | r - - {5 a4 H( |; w% L; G
- int main()
- k8 E# H h) ^% i7 F+ S' K - {
$ N. ?6 f( B ~2 L/ ` - char c;
) q; ?6 |# |3 w7 _! I$ [+ y - int i, macs[6];! ^3 s& ?' k$ F0 @/ W: V
- unsigned char mac[6]; ?8 N4 }. g& _& u8 A0 W
- unsigned char stbid[256];
* W% O* i" x* z* D3 g8 N - # m& s, s @0 `
- if (readparam(mac, stbid) < 0): G! y# U) a3 j" f) n
- return 1;! ]6 f( u5 j. D2 d* W( N$ _
1 [- r8 r6 w- Y# M! q; n f- printf("Current parameters: \n");8 d% b f+ m h- M. C( t$ L9 n
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);' @, X" E, D- W: L! M0 B
- printf(" STBID: %s\n", stbid);3 @) O( s5 p+ r( v4 }
- 9 N5 I) |. L, Q7 T) w H4 y
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");; d W4 \: j& E0 u$ N0 C8 v
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {( P1 {# l, [1 a% D$ |) Y
- printf("Input MAC error\n");( |- d* u- T; t
- return 1;
9 M3 j" g+ p& R* Y - }
; }6 u+ p, {/ V0 b - for (i=0; i<6; i++)mac[i] = macs[i];
, @) c6 I/ b; W - printf("\nPlease input new STBID: ");0 v( C' X% |& w+ H* _5 n
- scanf("%s", stbid);
* T4 ~2 y) ^3 t$ u! g - if (strlen(stbid) != 18) {8 b, R! ` { K- E
- printf("Invalid stbid\n");; U5 G G3 s& t2 ~
- return 1;
9 V) T# i! P' ^4 X& P+ e$ d2 r - }
( l5 K/ \, w O3 O% v - printf("\nNew parameters: \n");
3 [' t( G9 H( }( ~ - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);; x+ h* Q# q' b7 S8 I! |
- printf(" STBID: %s\n", stbid);* r: G, P2 Z, H0 o# U+ M0 q4 T
# h" _+ o' R2 Q- printf("\nDo you want to change paramemters? (y/N) ");# Z$ {& b$ t& o+ Q8 G
- for (;;) {
0 F6 h( K6 h# o o% i4 }. ^3 b - c = getchar();' W- f, b5 a* M' v6 Y
- if (c == 'y' || c == 'Y')) e9 n- ~& i0 c" @( s4 m1 k
- break;! Y* c/ v6 M) c& R' k4 c
- if (c == 'n' || c == 'N') {- W K3 \, ?5 d( Q' V4 z- J
- printf("\nAborted.\n");" v# t5 k2 l* s' V6 O; q$ Y" ^3 [
- return 1;" k- ?5 l- |/ t2 \+ ]
- }
0 D) q5 J) ~! z& K# t6 ^' K - }6 E4 R+ A% c; x
- if (writeparam(mac, stbid) == 0)
9 U" C. n q, N a1 Q6 S - printf("Parameters changed.\n");! k. ?2 W, t1 H p# N9 L4 V( n# ^
- $ u5 J8 E' _8 m) r4 ^! |
- return 0;: g1 X% I3 M r4 I7 m+ _# n
- }
复制代码 |