1/*	$NetBSD: if_mcvar.h,v 1.14 2022/09/18 10:54:52 thorpej Exp $	*/
2
3/*-
4 * Copyright (c) 1997 David Huang <khym@bga.com>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. The name of the author may not be used to endorse or promote products
13 *    derived from this software without specific prior written permission
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 */
27
28#include <macppc/dev/dbdma.h>
29
30#if 1
31#define integrate
32#define hide
33#else
34#define integrate	static /*inline*/
35#define hide		static
36#endif
37
38#define	MC_REGSPACING	16
39#define	MC_REGSIZE	MACE_NREGS * MC_REGSPACING
40#define	MACE_REG(x)	((x)*MC_REGSPACING)
41
42#define	NIC_GET(sc, reg)	(bus_space_read_1((sc)->sc_regt,	\
43				    (sc)->sc_regh, MACE_REG(reg)))
44#define	NIC_PUT(sc, reg, val)	(bus_space_write_1((sc)->sc_regt,	\
45				    (sc)->sc_regh, MACE_REG(reg), (val)))
46
47#ifndef	MC_RXDMABUFS
48#define	MC_RXDMABUFS	2
49#endif
50#if (MC_RXDMABUFS < 2)
51#error Must have at least two buffers for DMA!
52#endif
53
54#define	MC_NPAGES	((MC_RXDMABUFS * 0x800 + PAGE_SIZE - 1) / PAGE_SIZE)
55
56struct mc_rxframe {
57	uint8_t		rx_rcvcnt;
58	uint8_t		rx_rcvsts;
59	uint8_t		rx_rntpc;
60	uint8_t		rx_rcvcc;
61	uint8_t		*rx_frame;
62};
63
64struct mc_softc {
65	device_t	sc_dev;		/* base device glue */
66	struct ethercom	sc_ethercom;	/* Ethernet common part */
67#define	sc_if		sc_ethercom.ec_if
68	struct ifmedia	sc_media;
69
70	struct mc_rxframe	sc_rxframe;
71	u_int8_t	sc_biucc;
72	u_int8_t	sc_fifocc;
73	u_int8_t	sc_plscc;
74	u_int8_t	sc_enaddr[6];
75	u_int8_t	sc_pad[2];
76	int		sc_havecarrier; /* carrier status */
77	void		(*sc_bus_init)(struct mc_softc *);
78	void		(*sc_putpacket)(struct mc_softc *, u_int);
79	int		(*sc_mediachange)(struct mc_softc *);
80	void		(*sc_mediastatus)(struct mc_softc *,
81				struct ifmediareq *);
82
83	bus_space_tag_t	sc_regt;
84	bus_space_handle_t sc_regh;
85
86	u_char		*sc_txbuf, *sc_rxbuf;
87	int		sc_txbuf_phys, sc_rxbuf_phys;
88	int		sc_tail;
89	bool		sc_txbusy;
90
91	int		sc_node;
92	dbdma_regmap_t	*sc_txdma;
93	dbdma_command_t	*sc_txdmacmd;
94	dbdma_regmap_t	*sc_rxdma;
95	dbdma_command_t	*sc_rxdmacmd;
96};
97
98int	mcsetup(struct mc_softc *, u_int8_t *);
99int	mcintr(void *arg);
100void	mc_rint(struct mc_softc *sc);
101