本帖最后由 0522 于 2012-3-21 23:04 编辑 & c' M/ u1 [/ I
5 O% ? R9 z, g' X- [修改的代码早有了。到今天不会编译。) |6 D/ O* q6 s. N# T
需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>
0 I7 l/ n+ U8 j% L( P - #include <malloc.h>
6 }7 e0 t/ K9 I( [( ~ - #include <sys/types.h>9 J9 z* j$ x }6 d+ x: f& Y: F
- #include <sys/stat.h>+ v: O# b" \' I" u) p. J
- #include <sys/ioctl.h>/ q. J. z4 E8 ~$ w" d6 U! e
- #include <stdio.h>9 l' T3 G6 |3 Y2 e7 {" ~
- #include <string.h>
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- typedef struct {/ l, r7 e8 @6 @ I& _/ r
- unsigned int e2prom_cmd_sub_addr;
0 l3 X5 @9 t7 [# S8 j - unsigned int sub_addr_count;
9 Y- S$ i0 l3 { - unsigned char* e2prom_cmd_data;
" d0 D9 f1 H3 c1 E2 @ - unsigned int data_count;
. h0 [: w5 _1 @7 ^6 M - } e2prom_s_cmd;
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& Q# v7 J4 c, m9 V+ e$ A+ X* s- #define E2PROM_CMD_READ 1" H' a; \6 y+ f4 S1 {$ V3 |2 j( {2 O
- #define E2PROM_CMD_WRITE 2; O0 p; c) N' Q; G1 H* @! u& w
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"$ Z' b! Y& G# ~& H3 C
- . U M/ G! K% K) r7 ]. t3 Z6 T! B- \
- static int readparam(unsigned char *mac, unsigned char *stbid)
& W# z' z0 ]9 J2 a0 s# E; | b- V - {
3 O6 N, e0 s: y0 H - int fd, ret;
. K4 K; x# | ?; @ - e2prom_s_cmd arg;. k6 I4 U) z+ x
- unsigned char buf[0x18];" j" J. q1 t) f
- ) ^( E$ a0 I0 b/ |- I
- fd = open(E2PROM_DEVICE, O_RDWR);" B" L- b/ G9 t9 J. G! G- U6 ~
- if (fd < 0) {
9 e+ K5 g9 X% H/ o2 C; }1 [/ x9 ] - printf("Device %s open error.\n", E2PROM_DEVICE);2 L) e; I' w! ^% I7 ?) x
- return -1;' ]) r0 q& z2 J# {
- }
5 q" _6 \6 g: e- b4 S" R/ x - arg.sub_addr_count = 2;3 |, Z: i5 n" s: u/ P4 k: q
- arg.data_count = 0x18;
. u& _& }+ P# @6 q - arg.e2prom_cmd_sub_addr = 0x290;# C0 f9 h: l) U/ F( t3 `. o
- arg.e2prom_cmd_data = buf;
$ n, [; L6 Q: ] D% S* h) [ - ret = ioctl(fd, E2PROM_CMD_READ, &arg);
# F' H; U+ K/ S7 H, e8 A9 d: G - if (ret != 0) {; [* s. ` F: |8 N2 V
- printf("Device %s read error.\n", E2PROM_DEVICE);; l7 ^! B% ~, n0 F: e+ d6 Z
- return -1;
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- memcpy(mac, buf, 6);. K9 ~. v: X- U2 y6 _9 g+ D/ r$ O
- memcpy(stbid, &buf[6], 18);
g7 H# K. o n" R - stbid[18] = '\0';2 X; C1 H3 b& v9 w3 K `/ z3 a2 \
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- return 0;
4 [) e6 t& K- } - }
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5 f' \5 u6 |& G5 d- static int writeparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
) ^- K1 p r! N8 [ - e2prom_s_cmd arg;
# ~8 p0 e3 c) Y6 h' n5 I - unsigned char buf[0x18];5 l" P* L6 S: R6 j) v! B1 R
3 H& W9 M1 A% \9 o) R$ @2 `+ ]- memcpy(buf, mac, 6);
) g; d4 P2 e# N( Y - memcpy(&buf[6], stbid, 18);
! D2 M: ^3 p0 q/ w - fd = open(E2PROM_DEVICE, O_RDWR);
% r" N l3 m5 ^ C# l6 W4 [ - if (fd < 0) {
* e, V0 B* u- ^+ U - printf("Device %s open error.\n", E2PROM_DEVICE);
$ w$ U' c9 J6 W9 Q# k8 W - return -1;
; S4 c3 Z# z! ` - }
9 m% m# w( P2 J# ]/ l3 e - arg.sub_addr_count = 2;8 u& ^" J4 ?# h# [6 k3 d8 k. X4 |2 ]
- arg.data_count = 0x18;
* l1 ` L; b( c* m9 _% w# K( a9 {/ S - arg.e2prom_cmd_sub_addr = 0x290;
* v8 g( ?" d, e+ A' F1 ` - arg.e2prom_cmd_data = buf;
; k4 y7 P. t5 ?1 P - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
0 g. x7 a! y: ~6 G - if (ret != 0) {' P7 }3 `" G8 B: g# X
- printf("Device %s write error.\n", E2PROM_DEVICE);
8 {8 ~ e1 @8 e$ p q# _5 P - return -1;
" g7 t F3 ?7 m, S1 y3 Y4 T L - }
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* @, i4 {1 z1 K- d- return 0;2 X" X8 l% M2 l' o% {
- }
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- int main()
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- char c;8 z) Q0 y; N$ f* r% U4 K
- int i, macs[6];1 N! d0 [6 E* @/ Q" J+ Q
- unsigned char mac[6];
4 b& W l) @; D# ]; T - unsigned char stbid[256];
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- if (readparam(mac, stbid) < 0)# O+ ?0 T5 }! B* ~
- return 1;
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- printf("Current parameters: \n");
2 \/ E% J9 S+ }3 q) g8 J - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
- ^, l; w( x3 a% I - printf(" STBID: %s\n", stbid);
! Z5 z) o- \: m& c1 K -
3 N! F* k$ j _( n+ O. ? - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");% b1 o2 q- X/ [5 d
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {
2 X0 j1 B( ~9 e/ t1 r+ R+ U# } - printf("Input MAC error\n");
& [4 J9 u5 K \& ^8 C* h. _ - return 1;
: [% \: j% K/ l - }2 K+ f. q$ |3 m4 u) o/ ]* d
- for (i=0; i<6; i++)mac[i] = macs[i];
# K0 R5 B: s6 b8 f. L2 \- _" {: w - printf("\nPlease input new STBID: ");* {. D0 \7 g7 O
- scanf("%s", stbid);
4 a+ h; T+ ]6 d+ p - if (strlen(stbid) != 18) {* x6 J }( L2 c" x& ?) A% C u
- printf("Invalid stbid\n");' S8 E7 U# N' n- |; J
- return 1;; Z& W3 ~4 e* ^6 E9 `5 @
- }
: j8 ^$ v3 L! ]4 `! o: _4 _3 ?$ b - printf("\nNew parameters: \n");
. v, [! o- F2 j3 i9 M1 E& { - printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
" S1 ~7 L2 v4 n - printf(" STBID: %s\n", stbid);4 ^( E2 I+ \/ {
- / j& L* f: W8 k8 r
- printf("\nDo you want to change paramemters? (y/N) ");
4 p, i, V7 @9 j. l - for (;;) {
U" B9 `) {: A6 _ - c = getchar();
3 l4 C+ Z% y k" s" ? - if (c == 'y' || c == 'Y')
& e9 E9 Q# D6 V! G - break;3 F/ D a( e4 }+ a5 r! O
- if (c == 'n' || c == 'N') {
" G) v9 Z7 }4 i' |+ H: R: i - printf("\nAborted.\n");6 b N5 a8 G* E* Q" |2 N) |9 F
- return 1;7 J% Z# Q; \2 Y. R- e8 G$ y5 s% V
- }
- W: U7 e0 e7 ~4 x0 ]) ^ - }
/ d/ s% ~/ s+ e5 w, w - if (writeparam(mac, stbid) == 0) , e4 F, B) ]) [) x$ L3 v5 {% h$ n
- printf("Parameters changed.\n");
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- return 0;
6 M8 N1 q, c0 O8 M - }
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