本帖最后由 0522 于 2012-3-21 23:04 编辑 & D& p+ \0 }. u7 n
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修改的代码早有了。到今天不会编译。
- `5 n1 J U/ s! ~需要 交叉开发工具 cross-compiler-armv5l.tar.bz2- #include <fcntl.h>+ G2 D/ k. B6 K
- #include <malloc.h>
0 b) c3 R8 t+ b; B - #include <sys/types.h>
, ]+ }$ n7 i" M4 N+ h - #include <sys/stat.h>
4 o- t+ r8 f M5 Y- O4 k: h. I - #include <sys/ioctl.h>9 Y6 f8 \4 v( u& u
- #include <stdio.h>+ @8 l7 E& ~' c
- #include <string.h>1 \ r5 w% f3 O. T* C
- 6 Z+ `" V/ n$ h5 Z w3 z
- typedef struct {) A" I/ A: l+ c* K! y' b
- unsigned int e2prom_cmd_sub_addr;, Y4 ^5 j: n* q$ k2 `4 I- W" o
- unsigned int sub_addr_count; \; Z/ [% D; k/ x
- unsigned char* e2prom_cmd_data;
6 Q* W% a, J" c4 p+ e' d f2 {0 ? - unsigned int data_count;
" k7 W/ u( l7 w$ D' L0 ? - } e2prom_s_cmd;) l( \5 s' Y0 r, Q/ D/ _" N
& S, }3 W4 Q+ W1 G- l* B- #define E2PROM_CMD_READ 1
: W9 `. f- U4 A( ` - #define E2PROM_CMD_WRITE 2. e- s, D. r- T' |2 i
- #define E2PROM_DEVICE "/dev/misc/e2prom_24lc16"9 ^! }. _7 x! m1 w. ?
( A, S Q7 d6 s7 c2 R- K$ s0 d$ A- static int readparam(unsigned char *mac, unsigned char *stbid)
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- int fd, ret;
$ t9 e. ` }# J _! j7 [ - e2prom_s_cmd arg;1 b1 D" N3 S, m/ B) X
- unsigned char buf[0x18];/ Y4 T3 H3 Z0 f- s* x% l0 ]
! ~- e' y5 C- M) }: V ^& U- fd = open(E2PROM_DEVICE, O_RDWR);
6 R3 t4 l& n, H. z4 e6 [ - if (fd < 0) {4 c( Z7 d1 W k4 g4 d
- printf("Device %s open error.\n", E2PROM_DEVICE);% m2 \( X7 o5 O# U
- return -1;
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- arg.sub_addr_count = 2;
3 u; w, g9 i; x$ p* } - arg.data_count = 0x18;% u6 @' e c! `
- arg.e2prom_cmd_sub_addr = 0x290;6 W6 ~ }, X- n, @$ a7 h
- arg.e2prom_cmd_data = buf;9 e" j2 M+ @4 R$ s: G. n# e u. a
- ret = ioctl(fd, E2PROM_CMD_READ, &arg);
9 P( P V- G. L9 ?5 S" u: n - if (ret != 0) {
/ N6 X4 `- O# Z! r% m - printf("Device %s read error.\n", E2PROM_DEVICE);9 \" D, D$ w! Q( O# k& Z x7 }
- return -1;
/ W/ Q; i& j p. p9 v, r - }
- S7 |/ j Y9 s" A9 ^ - memcpy(mac, buf, 6);
6 H- z; p0 o1 e* }8 _ - memcpy(stbid, &buf[6], 18);- ~. W, C7 G0 e6 s; @
- stbid[18] = '\0';! Y( R3 [* F: s6 u: p' d
7 Q" X- T% S; g& M& c" Z- return 0;% b+ b4 Q5 O7 V( x& u5 h
- }
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- static int writeparam(unsigned char *mac, unsigned char *stbid) z% W) n H) F4 i, [; k
- {- h* O" J/ [7 b& b. E; x
- int fd, ret;
1 J7 e; n$ U' a0 H2 @! A - e2prom_s_cmd arg;7 y7 a1 O- Y7 N# Z4 j0 M$ p
- unsigned char buf[0x18];
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( y- x3 U2 c& z3 `1 I( G- memcpy(buf, mac, 6);/ O$ W2 g- V5 T; g; L( \
- memcpy(&buf[6], stbid, 18);
. M: c: G9 q) k; K# W' \ H1 l - fd = open(E2PROM_DEVICE, O_RDWR);" C1 i q9 T x; s% y
- if (fd < 0) {
0 ?8 f8 F7 d4 T6 C# h - printf("Device %s open error.\n", E2PROM_DEVICE);
& _9 o( h( ?/ ?- } - return -1;
* i: \/ M7 a/ f! \ - }
, d% l/ ?+ u. \, m, z4 l9 d+ F - arg.sub_addr_count = 2;
# r1 I5 r, v6 B3 ~ - arg.data_count = 0x18;) j6 \3 l6 |- u2 F/ N B: f1 y/ |, _
- arg.e2prom_cmd_sub_addr = 0x290;: M7 `8 }# J1 q' r& l& {& C0 X& \; v
- arg.e2prom_cmd_data = buf;
) _' N5 e' M3 F! P5 X8 x - ret = ioctl(fd, E2PROM_CMD_WRITE, &arg);
K: [( h! v; r - if (ret != 0) {6 u* ~5 W: O0 j: V3 y9 Z
- printf("Device %s write error.\n", E2PROM_DEVICE);
! l3 Q( i* y+ }( a9 e5 [ - return -1;
; q" N o" h6 s - }
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+ v+ D3 Q6 ^2 ~ V; z* H- return 0;
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- y- `) x7 X, R4 f! c K- int main()5 b* J1 a n' \8 q5 P: Q
- {
. u$ f6 }: W+ N8 _) d5 P/ i* O - char c;
/ |3 r$ S! i9 V9 ^, m& ]# W# c - int i, macs[6];+ o+ c) |; y V: U
- unsigned char mac[6];7 S- H( I5 f) o' e9 c
- unsigned char stbid[256];- s. @6 H$ M5 m8 I% m
- 5 E5 g2 S6 g8 |- Z9 P: C8 D
- if (readparam(mac, stbid) < 0)
4 b B/ N( g0 N+ g5 d$ |# d - return 1;0 y: m& c# g; c, g- z) {( Z( q$ d
+ U4 @9 I& r8 m# V; k2 q. h- printf("Current parameters: \n");0 w* d. P) g; E2 D" `6 v% m
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
5 A5 D3 y E# X$ A! z8 ~ - printf(" STBID: %s\n", stbid);7 ~/ ]8 @# Z) E( n' y$ X
-
7 \8 A: ^8 }: F: f: [0 ` - printf("\nPlease input new MAC (1a:2b:3c:4d:5e:6f): ");# P7 }2 x; Z* B# G/ m: T. k& x' e2 u
- if (scanf("%02x:%02x:%02x:%02x:%02x:%02x", &macs[0], &macs[1], &macs[2], &macs[3], &macs[4], &macs[5]) != 6) {8 H; v0 r% F- ?
- printf("Input MAC error\n");
3 N" }& x' L# W- k" ~ - return 1;$ p1 B5 f# y0 b+ \1 _
- }
0 Z( U) n+ q& i6 m4 h& I6 {+ f0 T - for (i=0; i<6; i++)mac[i] = macs[i];4 r$ O5 u- g& j0 u8 @
- printf("\nPlease input new STBID: ");: Y% e2 e" j& i- c+ u& v) y
- scanf("%s", stbid);9 ^* t+ R, _9 a- o+ Q8 r( M- p
- if (strlen(stbid) != 18) {
5 I3 g3 \4 t( _; R* q - printf("Invalid stbid\n");. p% S; K2 G5 l1 @. h: |7 J
- return 1;
7 G6 ]7 h! T5 u$ C - }
& f+ h9 D; U2 l" A* _ - printf("\nNew parameters: \n");7 ?& V: ]+ f) G9 h2 w+ b
- printf(" MAC: %02x:%02x:%02x:%02x:%02x:%02x\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
/ Y. ^, K' l( _# s - printf(" STBID: %s\n", stbid);; X1 a# O, D4 U; k6 @# Z! }
9 V; n0 N8 X8 N+ T8 d. D- printf("\nDo you want to change paramemters? (y/N) ");
3 i4 @% P$ f4 e* y* M6 h4 T, D( S$ f - for (;;) {
+ e6 C0 }6 M- b! K+ G& @ l- t3 z' u - c = getchar();
1 F4 P( S1 o+ P' j - if (c == 'y' || c == 'Y')
" S S9 W# j) }. U+ B - break;# k4 o! F& w# b; O# t* g$ e2 D
- if (c == 'n' || c == 'N') {) \" l/ J! V# ?
- printf("\nAborted.\n");
. `/ {) t( o) s5 ] i8 ^% u9 V* v& R0 k$ E - return 1;3 V$ q% s+ P/ j8 V
- }$ {$ {1 [7 O, ~& D4 M9 B7 H! y
- }4 B6 Y& D# ` i3 Z% P- W7 P; j+ o5 I
- if (writeparam(mac, stbid) == 0) 3 V* T# a% x. w2 c% ?
- printf("Parameters changed.\n");
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- w+ g, l& Y- X- return 0;+ c* B2 i0 x( ~9 N+ b( P! E2 B
- }
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