Subversion Repositories planix.SVN

Rev

Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
2 - 1 
/*
2 
 * Ctlr for the boards using the National Semiconductor DP8390
3 
 * and SMC 83C90 Network Interface Controller.
4 
 * Common code is in ether8390.c.
5 
 */
6 
typedef struct {
7 
	Lock;
8 
 
9 
	ulong	port;			/* I/O address of 8390 */
10 
	ulong	data;			/* I/O data port if no shared memory */
11 
 
12 
	uchar	width;			/* data transfer width in bytes */
13 
	uchar	ram;			/* true if card has shared memory */
14 
	uchar	dummyrr;		/* do dummy remote read */
15 
 
16 
	uchar	nxtpkt;			/* receive: software bndry */
17 
	uchar	pstart;
18 
	uchar	pstop;
19 
 
20 
	int	txbusy;			/* transmit */
21 
	uchar	tstart;			/* 8390 ring addresses */
22 
 
23 
	uchar	mar[8];			/* shadow multicast address registers */
24 
	int	mref[64];		/* reference counts for multicast groups */
25 
} Dp8390;
26 
 
27 
#define Dp8390BufSz	256
28 
 
29 
extern int dp8390reset(Ether*);
30 
extern void *dp8390read(Dp8390*, void*, ulong, ulong);
31 
extern void dp8390getea(Ether*, uchar*);
32 
extern void dp8390setea(Ether*);
33 
 
34 
/*
35 
 * x86-specific code.
36 
 */
37 
#define regr(c, r)	inb((c)->port+(r))
38 
#define regw(c, r, v)	outb((c)->port+(r), (v))
39 
 
40 
static void
41 
rdread(Dp8390* ctlr, void* to, int len)
42 
{
43 
	switch(ctlr->width){
44 
	default:
45 
		panic("dp8390 rdread: width %d\n", ctlr->width);
46 
		break;
47 
 
48 
	case 2:
49 
		inss(ctlr->data, to, len/2);
50 
		break;
51 
 
52 
	case 1:
53 
		insb(ctlr->data, to, len);
54 
		break;
55 
	}
56 
}
57 
 
58 
static void
59 
rdwrite(Dp8390* ctlr, void* from, int len)
60 
{
61 
	switch(ctlr->width){
62 
	default:
63 
		panic("dp8390 rdwrite: width %d\n", ctlr->width);
64 
		break;
65 
 
66 
	case 2:
67 
		outss(ctlr->data, from, len/2);
68 
		break;
69 
 
70 
	case 1:
71 
		outsb(ctlr->data, from, len);
72 
		break;
73 
	}
74 
}