本帖最后由 0522 于 2012-3-21 23:04 编辑 : ?; v' g& O/ Z4 g
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修改的代码早有了。到今天不会编译。
1 N; P* F/ P d: W! H) w- S; ~! V9 ^需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
9 q2 V- [2 q3 |& i - #include <malloc.h>8 `* K( ]! \# J) Q7 s8 v
- #include <sys/types.h>
( t; a" x$ ~' F; X - #include <sys/stat.h>
# w: z+ E2 ]$ o/ V8 O+ x% e - #include <sys/ioctl.h>
) f* @) s" X' e. l+ |6 R" R - #include <stdio.h>
. G L: C9 _5 M$ ]( a; Z - #include <string.h>4 |; N) F) }7 u' A j) B ^. S
- * m4 t$ j7 k3 n" ]" |
- typedef struct {( A# m7 N8 r5 o0 I0 N
- unsigned int e2prom_cmd_sub_addr;
3 m+ [4 o a" Z0 K. ? - unsigned int sub_addr_count;
. K! t7 k* \$ G9 J# O' X - unsigned char* e2prom_cmd_data;
, H2 F3 _* x+ G# w" F3 y - unsigned int data_count;
* G* j. I+ L9 E$ l* R2 C$ x - } e2prom_s_cmd;! b- u q9 K; I4 D
T0 T- @+ E L; g* \, X/ P8 i- #define E2PROM_CMD_READ 1, j# f3 J. S* S$ o/ f4 f
- #define E2PROM_CMD_WRITE 2% ?- Q: r+ z+ J
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"
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- static int readparam(unsigned char *mac, unsigned char *stbid) {( a Z5 a% s- |4 l5 G9 T
- {4 a/ t3 U8 R. j* u2 ?: D+ [
- int fd, ret;$ Q2 ]* h3 F, E: [8 {
- e2prom_s_cmd arg;3 Y8 ^4 O" A H, \" J4 d
- unsigned char buf[0x18];
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( M7 e- F7 R/ `; g3 q& ` ~& r: R- fd = open(E2PROM_DEVICE, O_RDWR);
" B" K9 A; \- s0 i - if (fd < 0) {) L- ^" k! o# K: w+ c" h: ^" P0 R& X/ j
- printf("Device %s open error.\n", E2PROM_DEVICE);5 ^3 Z( J# a& W
- return -1;# z( D6 j) Q! L, P& z; P
- }
. o+ k, T; l3 e& C2 W+ X- u7 C$ _ - arg.sub_addr_count = 2;
0 A: O* |* b$ F {$ \2 l" [& g - arg.data_count = 0x18;, n; }3 e$ ~& W1 b8 ?
- arg.e2prom_cmd_sub_addr = 0x290;7 I5 W) u& c5 T; l0 ?9 O8 C$ {
- arg.e2prom_cmd_data = buf;
& v" D* s! @, h: {2 C3 e - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
* Z5 c$ X/ u/ ?: F& R" N - if (ret != 0) {
2 `% E5 w2 m# q6 c* n - printf("Device %s read error.\n", E2PROM_DEVICE);* [; G4 S2 D% ~2 S8 Y# i# ]
- return -1;2 b& {% r. O3 a( \/ j. C
- }( {% c! Q4 `0 v: g
- memcpy(mac, buf, 6);
1 a: X" b H4 V8 W/ T - memcpy(stbid, &buf[6], 18);. ^0 {. g2 C" D6 Q* T
- stbid[18] = '\0';
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- return 0;! n4 P& r/ T4 e# m1 U! ~
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid)
# `7 `- A' z+ L: j3 y$ R" j - {
. l ]5 s, a& J& ?- S4 ` - int fd, ret;
' r& T" J9 K* R$ [" v* s( ]6 | - e2prom_s_cmd arg;2 Q. m' @9 T8 Z5 l
- unsigned char buf[0x18];+ ]/ W& A/ {8 i! h# B- D5 K. ^
' c& u0 {# h. j, E( [/ ~- memcpy(buf, mac, 6);
4 v$ \2 N, e" t' q/ E - memcpy(&buf[6], stbid, 18);
8 _& T" J' Y2 J& N - fd = open(E2PROM_DEVICE, O_RDWR);' C$ Z* s2 ?2 u1 L& p4 o$ t8 n2 k7 T
- if (fd < 0) {/ I4 l, n6 v( N+ K9 s1 M
- printf("Device %s open error.\n", E2PROM_DEVICE);
8 Z6 v# u, p# U5 V) `+ y - return -1;: Q4 |8 j( s" j7 A# T* |
- }
, n& B V1 R$ {1 n# Z& F( y - arg.sub_addr_count = 2;4 i/ v# r; z; P) A7 e
- arg.data_count = 0x18;; u. v7 C$ C6 _; I7 Q
- arg.e2prom_cmd_sub_addr = 0x290;" ~ a6 d3 a0 L
- arg.e2prom_cmd_data = buf;8 S2 X) m0 ?9 m, X. b$ U
- ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
3 z1 C6 x2 ~' @% C' j! T' D# G, b- L - if (ret != 0) {# k6 z/ d# M- q+ {4 o
- printf("Device %s write error.\n", E2PROM_DEVICE);. o7 v+ N' ~( ]& ]
- return -1;4 H1 Q; e0 V+ X
- }9 e$ h7 a. Z7 d" ?* {+ i
4 |- K0 w# ^$ x, D+ X" U- return 0;
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- u$ j* a5 R0 C8 s; @ A- int main()/ x* K$ B) n: o9 i( P! ^" A) r5 G2 n
- {, f, ]7 [$ F& P) D
- char c;: u' ?7 e4 ~' b0 R* \+ r' y& x
- int i, macs[6];
- w9 C9 d7 E3 J3 {0 V - unsigned char mac[6];3 x3 a& ^/ u4 e: s5 P! g
- unsigned char stbid[256];
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0 {: V5 F( r2 W' o5 `- if (readparam(mac, stbid) < 0)
( {/ q) {4 H" M - return 1;
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- printf("Current parameters: \n");; ]6 d3 W; |, R2 i, q! K
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);" H6 P% s. W3 F& l
- printf(" STBID: %s\n", stbid);0 Y# z f( `/ |, m/ x- v9 W- \% u
- ) N, \5 X6 e7 d* M) w3 B
- printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");
! W( @1 \+ u/ b/ K! W0 a4 v - if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {. |( ?% m$ V# m( }+ |- |
- printf("Input MAC error\n");1 H1 W7 Y6 M# L3 M
- return 1;2 [ L: d1 z5 Q: m* T. F! I
- }
5 A$ O' j( x) O8 r- x7 d4 H - for (i=0; i<6; i++)mac[i] = macs[i];
% R* i/ _- S# b: Z' X+ f3 p' a! o - printf("\nPlease input new STBID: ");
! Y# l. | Q; ]7 S) M( q - scanf("%s", stbid);
4 \# N: }2 O: s. D$ \' t r8 X - if (strlen(stbid) != 18) {/ I, E, k4 c3 b' g( a ?
- printf("Invalid stbid\n");
& U4 t3 k6 @, W' n* i - return 1;- A( \& \2 H5 C s: P2 S: J
- }5 B" t$ J- z j( h2 X. @6 @, W
- printf("\nNew parameters: \n"); v, f4 ?- l* E3 d& e) x4 x# \7 L- W
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); j- \5 F3 F, J: L1 y: s# o
- printf(" STBID: %s\n", stbid); W6 ?; n& d7 X+ L4 Q) g# i
- - W$ M1 W* n% l9 @! `% s
- printf("\nDo you want to change paramemters? (y/N) ");
5 F. k9 t1 p3 @ - for (;;) {
. K& ^1 Z3 f0 f0 A1 y% D - c = getchar();
: i# J9 [4 l: j2 G4 Y - if (c == 'y' || c == 'Y')3 H6 R# J7 {- v
- break;; Q3 S, o8 F$ n
- if (c == 'n' || c == 'N') {
% h- \2 V7 \% `, ]2 n# o+ T4 P @ - printf("\nAborted.\n");: N1 p6 E7 q- P
- return 1; M; b( s/ |7 @+ B6 v
- }/ L6 G! \! S" r9 o
- }
& H$ _" F' ^! D! S - if (writeparam(mac, stbid) == 0) # v E) Y& g/ A( `
- printf("Parameters changed.\n");
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- return 0;/ k) }2 K5 n6 G* O7 M
- }
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