1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1996, Javier Mart^mn Rueda (jmrueda@diatel.upm.es)
5 * All rights reserved.
6 *
7 * Copyright (c) 2000 Matthew N. Dodd
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *	$FreeBSD$
32 */
33
34struct ex_softc {
35  	struct ifnet	*ifp;
36	struct ifmedia	ifmedia;
37	u_char		enaddr[6];
38
39	device_t	dev;
40	struct resource *ioport;
41	int		ioport_rid;
42	struct resource *irq;
43	int		irq_rid;
44	void *		ih;
45
46	u_short		irq_no;		/* IRQ number. */
47
48	char *		irq2ee;		/* irq <-> internal		*/
49	u_char *	ee2irq;		/* representation conversion	*/
50
51	u_int		mem_size;	/* Total memory size, in bytes. */
52	u_int		rx_mem_size;	/* Rx memory size (by default,	*/
53					/* first 3/4 of total memory).	*/
54
55	u_int		rx_lower_limit;	/* Lower and upper limits of	*/
56	u_int		rx_upper_limit;	/* receive buffer.		*/
57
58	u_int		rx_head;	/* Head of receive ring buffer. */
59	u_int		tx_mem_size;	/* Tx memory size (by default,	*/
60					/* last quarter of total memory).*/
61
62	u_int		tx_lower_limit;	/* Lower and upper limits of	*/
63	u_int		tx_upper_limit;	/* transmit buffer.		*/
64
65	u_int		tx_head;	/* Head and tail of 		*/
66	u_int		tx_tail;	/* transmit ring buffer.	*/
67
68	u_int		tx_last;	/* Pointer to beginning of last	*/
69					/* frame in the chain.		*/
70	struct mtx	lock;
71	struct callout	timer;
72	int		tx_timeout;
73	int		flags;
74#define	HAS_INT_NO_REG	1
75};
76
77extern devclass_t ex_devclass;
78
79extern char	irq2eemap[];
80extern u_char	ee2irqmap[];
81extern char	plus_irq2eemap[];
82extern u_char	plus_ee2irqmap[];
83
84int		ex_alloc_resources(device_t);
85void		ex_release_resources(device_t);
86int		ex_attach(device_t);
87int		ex_detach(device_t);
88
89driver_intr_t	ex_intr;
90
91u_int16_t	ex_eeprom_read(struct ex_softc *, int);
92void		ex_get_address(struct ex_softc *, u_char *);
93int		ex_card_type(u_char *);
94
95void		ex_stop(struct ex_softc *);
96
97#define CSR_READ_1(sc, off) (bus_read_1((sc)->ioport, off))
98#define CSR_READ_2(sc, off) (bus_read_2((sc)->ioport, off))
99#define CSR_WRITE_1(sc, off, val) \
100	bus_write_1((sc)->ioport, off, val)
101#define CSR_WRITE_2(sc, off, val) \
102	bus_write_2((sc)->ioport, off, val)
103#define CSR_WRITE_MULTI_1(sc, off, addr, count) \
104	bus_write_multi_1((sc)->ioport, off, addr, count)
105#define CSR_WRITE_MULTI_2(sc, off, addr, count) \
106	bus_write_multi_2((sc)->ioport, off, addr, count)
107#define CSR_WRITE_MULTI_4(sc, off, addr, count) \
108	bus_write_multi_4((sc)->ioport, off, addr, count)
109#define CSR_READ_MULTI_1(sc, off, addr, count) \
110	bus_read_multi_1((sc)->ioport, off, addr, count)
111#define CSR_READ_MULTI_2(sc, off, addr, count) \
112	bus_read_multi_2((sc)->ioport, off, addr, count)
113#define CSR_READ_MULTI_4(sc, off, addr, count) \
114	bus_read_multi_4((sc)->ioport, off, addr, count)
115
116#define	EX_LOCK(sc)		mtx_lock(&(sc)->lock)
117#define	EX_UNLOCK(sc)		mtx_unlock(&(sc)->lock)
118#define	EX_ASSERT_LOCKED(sc)	mtx_assert(&(sc)->lock, MA_OWNED)
119