本帖最后由 0522 于 2012-3-21 23:04 编辑 5 q. b! L1 f2 Q; T. r
* D$ }: G9 e: `: q2 u6 b修改的代码早有了。到今天不会编译。
0 t% B6 a8 Z; p9 l* N* C( c9 `6 R- e需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>% L* @4 _- A9 e
- #include <malloc.h>
6 e1 O2 M" b5 G7 e; S - #include <sys/types.h>
, D% M6 m* J) q/ T - #include <sys/stat.h>
4 L, S+ P5 W& [! @1 Q5 r - #include <sys/ioctl.h>5 M L5 M% ?% V
- #include <stdio.h>
1 ^( ~1 e2 N$ T4 g9 U - #include <string.h> w+ V4 X6 }0 x. y) V8 J' s& g+ K
- w2 I, c+ H& h" E& g6 o: z1 f# i- typedef struct {
' a0 n9 Q) G9 S- Z - unsigned int e2prom_cmd_sub_addr;
0 B& Y7 w+ M8 l - unsigned int sub_addr_count;
9 @. e. T. S" r, F' P. L- f! I - unsigned char* e2prom_cmd_data;% h' b, e/ y, P* N) x% F
- unsigned int data_count;
; L' g d6 R# s7 b! j: F/ J3 E: B - } e2prom_s_cmd;
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- #define E2PROM_CMD_READ 1, o$ R5 R; i1 s1 u! W, r* X
- #define E2PROM_CMD_WRITE 29 _6 N+ m, ^$ z! d
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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0 b( q) M. q9 n' K& T- N8 N. g- static int readparam(unsigned char *mac, unsigned char *stbid): `& u/ W. B5 V8 ?
- {2 z: ^+ x& p5 B( S& p+ L5 Z U
- int fd, ret;
1 u- S* J0 I! ] \* L - e2prom_s_cmd arg;
' u" {0 t" Q8 U! ?& O4 M - unsigned char buf[0x18];
- s t% b' {1 [5 ]1 y2 \ - & o$ G, E* ^& q# S4 e
- fd = open(E2PROM_DEVICE, O_RDWR);
. C7 O: h1 W6 {+ I! T, f - if (fd < 0) {9 c$ K" Y) T3 Q1 u. O6 C. k
- printf("Device %s open error.\n", E2PROM_DEVICE);
7 z' Z3 j! I8 z% R( [$ Z - return -1;
4 S, ^' R u+ Y+ e2 p - }
4 i& G* v1 C: t2 n' J4 t& B8 T+ K - arg.sub_addr_count = 2;% q# {, m0 S* w
- arg.data_count = 0x18;( ]0 S/ C _- j
- arg.e2prom_cmd_sub_addr = 0x290;
s8 @% t! x- c8 k4 m, z - arg.e2prom_cmd_data = buf;
1 d; E5 K3 S7 j, J" f# f G, \: r- { - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
6 e. `5 j& p. @' n/ S1 Q - if (ret != 0) {* k) d' \0 ?7 V; q$ t% { |% Q
- printf("Device %s read error.\n", E2PROM_DEVICE);% C! K) Z: G+ C- `/ ` W) j
- return -1;! I4 N7 v: ]* l' O& J9 |4 I8 n% C
- }2 {! A( Q' b, P. w! M
- memcpy(mac, buf, 6);" w8 |0 P: D5 t
- memcpy(stbid, &buf[6], 18);
& [) B9 E1 b0 u. P3 l0 X4 E - stbid[18] = '\0';
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" _# U9 s0 i1 A, K' h- return 0;+ }- I: v3 V1 C0 d; r, O
- }
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; D5 x* M) W- ~0 `2 F5 H* t- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;$ S5 A% b: Z9 ^ o* f0 \- B
- e2prom_s_cmd arg;
0 A' p/ Y# \# g% M5 s - unsigned char buf[0x18];
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- memcpy(buf, mac, 6);6 a; @. n: y; l/ J1 m+ [
- memcpy(&buf[6], stbid, 18);$ t4 z! Q5 J7 E7 Z
- fd = open(E2PROM_DEVICE, O_RDWR);
3 E- _ n" q8 K6 | - if (fd < 0) {" r9 m$ o- l& D6 B1 e- s' ^8 v' R
- printf("Device %s open error.\n", E2PROM_DEVICE);
; y4 S" z u! N1 P* H; `; X2 @/ a+ ~: H - return -1;7 b4 ^9 f) }+ u( X' C0 u7 I5 y
- }( o o! d; {% U! x2 e* I
- arg.sub_addr_count = 2;3 _" o1 j# I' }
- arg.data_count = 0x18;7 X. m4 u3 N' q3 \
- arg.e2prom_cmd_sub_addr = 0x290;) b% j! O( p: y$ H- J! \
- arg.e2prom_cmd_data = buf;' {. r0 p6 P+ `( f
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
3 |- M, @3 G' u - if (ret != 0) {0 n% j( @( C) O( ^1 X; `
- printf("Device %s write error.\n", E2PROM_DEVICE);
5 [1 ?3 G5 A/ y: S - return -1; ~' s+ y1 F D( F3 h( I; w
- }' Y1 A! ?* b, u: B4 ]: I
- A& ^4 i+ J, \- return 0;
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( t1 k, T! D1 f& L- int main()8 I2 e2 m( a9 |. q
- {
# v- _+ E7 z) V5 J# J6 T; a% R - char c;1 D8 h, C, y; t
- int i, macs[6];
! P5 K/ X8 t$ q! A9 h - unsigned char mac[6];
" c, I F$ X% s - unsigned char stbid[256];# H, S' ?6 r$ p+ m* M6 b- N
- . W& N$ M1 @2 ?2 u/ f( M3 `
- if (readparam(mac, stbid) < 0)4 i1 O" l" P. o$ b& D C
- return 1;+ a; {1 j8 y0 F3 V5 C) a
- 3 A/ ~! f2 ^9 t# |5 U6 i. a: a! A ~
- printf("Current parameters: \n");
+ {% [( o/ w' i, _8 I7 E7 y - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
; e7 z6 q9 u) h! M - printf(" STBID: %s\n", stbid);
B1 C' g- W2 n7 q4 z -
0 j; ^% ]6 w+ | - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");( _* i+ d, x! _! I
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {4 N1 M# [# |0 l" X0 i4 m/ ]
- printf("Input MAC error\n");
' r. I2 ~* }( z8 l7 R1 } x - return 1;. k6 G: {" d2 Q' u
- }
. Y( r* `- i2 p" O: T T - for (i=0; i<6; i++)mac[i] = macs[i];% [+ E) T+ q: Q; N4 |3 P
- printf("\nPlease input new STBID: ");0 X' n. k- \. U `5 B+ ^7 t
- scanf("%s", stbid);
: c5 s# ], j5 ?4 l# r - if (strlen(stbid) != 18) {
2 u/ @& C* `; b - printf("Invalid stbid\n");5 |' I9 \8 \, G. o T. `
- return 1;
0 C; {9 `) s3 r2 S) S4 W5 c* Q/ ? - }
1 b" f) M/ i0 E" u' a5 s& R - printf("\nNew parameters: \n");, U) l5 {0 }" {6 q% P
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);& o$ X! x2 `/ I0 b& m. A
- printf(" STBID: %s\n", stbid);
: ?1 o4 \# g. {
& q# H% e5 D! m/ }3 T2 g- printf("\nDo you want to change paramemters? (y/N) ");9 |6 ?5 Q8 P9 M3 }9 c( B X
- for (;;) {+ q9 Y" ~" }5 \% m) I# O
- c = getchar();9 J! O( H0 v7 G; z! y7 S
- if (c == 'y' || c == 'Y')
+ @8 I* I5 L* \8 c! `9 f - break;
" [+ q& G& S: S1 O E" S7 z - if (c == 'n' || c == 'N') {
3 C3 G0 o/ R& {% p Z/ X5 U c - printf("\nAborted.\n");, B5 N3 U5 K0 ^/ a A% z2 J! F
- return 1;
9 Q+ E( [/ y2 q1 x% y# }$ C - }
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- if (writeparam(mac, stbid) == 0)
, u, c% J% o6 @( b4 K6 i - printf("Parameters changed.\n");* R; \; \! a0 ^' I- R" L* N$ V
- " h. ~& z6 X. Z* J9 q, d! D
- return 0;
# x. g% ?: D0 A! o7 M - }
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