本帖最后由 0522 于 2012-3-21 23:04 编辑
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6 f: ~$ ^1 L3 c7 Q# q修改的代码早有了。到今天不会编译。- C I6 C# B0 H, u
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>, {+ C8 b8 e& d' R
- #include <malloc.h>) N; A: R. A4 o. @. e5 r
- #include <sys/types.h>+ ^$ K1 v' Z0 l$ R' G
- #include <sys/stat.h>
5 l& z/ z+ E; Y+ H5 z3 i - #include <sys/ioctl.h>' y( l4 {0 [! s( Q0 Z& l
- #include <stdio.h>
5 v+ M$ B; I; O s, {6 A+ u - #include <string.h>8 q8 w$ @0 {9 ^% r4 w$ d
- + Z% z+ u; T: T' w, w
- typedef struct {
- V& J) o8 B; n5 Q# u - unsigned int e2prom_cmd_sub_addr;
" g* b( z" I' t& g' | - unsigned int sub_addr_count;
& V# B2 X+ Y# r6 ? - unsigned char* e2prom_cmd_data;
5 P* Z; x: Q) F- R9 o/ j$ C - unsigned int data_count;
{+ s, U% |+ q0 \$ E" _5 `4 j/ W - } e2prom_s_cmd;
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" ^5 |1 k6 u" i9 l. v( [( Y8 [- #define E2PROM_CMD_READ 1
9 _8 s/ k$ f( H( c) q - #define E2PROM_CMD_WRITE 2
2 ^0 G8 l7 N) m; N' e - #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"/ k, |. A/ d+ M0 l
6 {4 y9 c; A3 k, R$ e) Y3 b; M- static int readparam(unsigned char *mac, unsigned char *stbid)* @+ y- D6 L6 H3 |, ]4 N- C
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- int fd, ret;
3 g1 d. c ^' }2 P8 d - e2prom_s_cmd arg;
. `& X" S6 ]; a! ]# y - unsigned char buf[0x18];
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# Y' V! Y& U6 q( k M$ m$ A# ^$ h- fd = open(E2PROM_DEVICE, O_RDWR);0 x- R! K- l* ]3 S* V- O
- if (fd < 0) {
( |+ q W' I, \/ ^1 F2 z f- W/ y - printf("Device %s open error.\n", E2PROM_DEVICE);
, X. k4 `, _& G8 {- i2 I - return -1;
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- arg.sub_addr_count = 2;
1 e+ D* {2 L$ f7 O' K' J - arg.data_count = 0x18;- n+ c0 ~; }' c8 f0 g2 D
- arg.e2prom_cmd_sub_addr = 0x290;' L2 i- g' i7 f% {
- arg.e2prom_cmd_data = buf;7 [' i# F$ Z: H- {- I; c, w
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
5 `) A! D3 b* h, k - if (ret != 0) {
1 q R/ S4 q' ?# @2 @- G9 e6 w - printf("Device %s read error.\n", E2PROM_DEVICE);
- |2 w4 ~0 J* O2 j, [ - return -1;& u* ]& R/ \; p! ]
- }
3 j [* \' B% J7 _ - memcpy(mac, buf, 6);
, _+ V2 S8 E* J" x7 }; ?1 b' J - memcpy(stbid, &buf[6], 18);0 e1 Q a3 Y9 N9 N$ \+ _
- stbid[18] = '\0';
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9 ^' v# ^9 }! A* L- j- return 0;
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# P K! U, B6 S- static int writeparam(unsigned char *mac, unsigned char *stbid)0 u* S- B& O3 T, I7 h Y
- {4 V8 C3 b: h& G% b' g; {# k; C
- int fd, ret;
* g. I W" c2 B/ r) J - e2prom_s_cmd arg;8 r) \- I# ]8 ?2 H9 j- E: n
- unsigned char buf[0x18];
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3 h1 t. c% h6 \( ?8 {- memcpy(buf, mac, 6);
9 U" P2 M, L; v" |% B& b - memcpy(&buf[6], stbid, 18);9 [8 ?. \# t* d6 l4 d9 j2 n
- fd = open(E2PROM_DEVICE, O_RDWR);
7 i* n6 n5 M9 t% l) c - if (fd < 0) {
! U) ?% B2 c2 j1 h: l - printf("Device %s open error.\n", E2PROM_DEVICE);/ L) F S2 B) E- h) `2 \! _ L! P H
- return -1;
- M, g& Z2 e+ N" p0 ] - }
# S4 B: [, ? o- N( D( C - arg.sub_addr_count = 2;: ^% a' Y6 o7 X3 a- o+ a) b# z
- arg.data_count = 0x18;
8 t$ j" ], s& J3 `7 b; @& a - arg.e2prom_cmd_sub_addr = 0x290;: H% g+ r1 u: k8 j7 r& a
- arg.e2prom_cmd_data = buf;8 E: Z" s" q( Y1 v+ C
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
$ b* n% r4 ^2 w, P' N$ e1 \! l - if (ret != 0) {
) f S% ]1 \' ?: J - printf("Device %s write error.\n", E2PROM_DEVICE);
2 F7 J' T0 t: c0 c4 Z1 d - return -1;7 @3 m9 U' Q1 a! m
- }
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- return 0;4 |# q# }1 y: K9 G. @; [* u" Z
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& ]( e$ C/ x9 h3 P/ v8 I- int main()3 m* _" Q+ V7 u! u5 H& W
- {
( k" d5 v# e' t - char c;
5 F0 |& G$ F: S; V0 v - int i, macs[6];
- o+ V& k, ^ ~/ y% i# S - unsigned char mac[6];
& B" Z. Q4 |9 r, l. S3 H - unsigned char stbid[256];
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% @- J7 Q+ v3 F I n- if (readparam(mac, stbid) < 0)# w1 O" W1 _3 S9 O q# W' T
- return 1;
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- printf("Current parameters: \n");
5 q" S4 {& l3 t- w V - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
5 k, T9 r4 M8 `: h/ Z+ c - printf(" STBID: %s\n", stbid);
( A) m+ T# P/ p1 b -
' A! Z+ B# y/ t9 `$ y" |0 ? - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
7 h/ e6 u8 m/ T8 D. d" ]5 V+ O6 I - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
) L w2 h" B X5 ]( V3 ~ - printf("Input MAC error\n");
S; @: ~0 m% Z/ s( X J8 t, ^ - return 1;2 v8 V- ~3 ~1 k; ` G, S. ?
- }) ^2 Y. [( X: |$ B! o0 b
- for (i=0; i<6; i++)mac[i] = macs[i];
7 g: B7 E! k4 V - printf("\nPlease input new STBID: ");4 s$ z- G- L1 |2 g+ f
- scanf("%s", stbid);9 r) g& p' Y; S, p/ b+ k$ |) W
- if (strlen(stbid) != 18) {
9 S8 c( g" H, Z% V - printf("Invalid stbid\n");
7 J$ J/ C& V& o/ x - return 1;
* _& y& p* Y @7 R" Y - } ]* q9 p! p3 g& N1 e7 t# b
- printf("\nNew parameters: \n");
' U/ [/ C0 G2 e# o: G2 H w4 I/ t) n - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
$ p2 h: I9 V( y: K - printf(" STBID: %s\n", stbid);$ O1 n' A$ z0 m3 N
# z8 f5 ~% c- y4 p. E- printf("\nDo you want to change paramemters? (y/N) "); N5 n) k/ i. ^, G
- for (;;) {
* P1 p3 ]" \1 w2 t. K& u - c = getchar();
& ~4 i, W1 h6 f( Z5 |0 X9 F' F - if (c == 'y' || c == 'Y')! Y' S ~1 g3 Q x& X% s5 I) ^
- break;- L# N; Y1 V. \6 V, _- A6 Y
- if (c == 'n' || c == 'N') {; g. B2 d1 G# S' s8 g# W
- printf("\nAborted.\n");
, V6 S% s4 m+ Y! @% c+ n$ v( s - return 1;' r3 K" v9 c/ \% {4 w6 Z, q0 K
- }
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- if (writeparam(mac, stbid) == 0) 7 N @/ j* U, {8 |' L$ J, b
- printf("Parameters changed.\n");" C/ `8 @3 X/ s
$ m4 S3 }/ E% C; |- return 0;. `9 @" @8 ]) p$ u) V
- }
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