fdcvar.h revision 135392 
1/*-
2 * Copyright (c) 2004 M. Warner Losh.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions, and the following disclaimer,
10 *    without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in
13 *    the documentation and/or other materials provided with the
14 *    distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/dev/fdc/fdcvar.h 135392 2004-09-17 18:50:38Z imp $
29 */
30
31/* XXX should audit this file to see if additional copyrights needed */
32
33enum fdc_type {
34	FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1
35};
36
37/*
38 * Per controller structure (softc).
39 */
40struct fdc_data {
41	int	fdcu;		/* our unit number */
42	int	dmachan;
43	int	flags;
44#define FDC_HASDMA	0x01
45#define FDC_STAT_VALID	0x08
46#define FDC_HAS_FIFO	0x10
47#define FDC_NEEDS_RESET	0x20
48#define FDC_NODMA	0x40
49	struct	fd_data *fd;	/* The active drive */
50	int	retry;
51	int	fdout;		/* mirror of the w/o digital output reg */
52	u_int	status[7];	/* copy of the registers */
53	enum	fdc_type fdct;	/* chip version of FDC */
54	int	fdc_errs;	/* number of logged errors */
55	struct	bio_queue_head head;
56	struct	bio *bp;	/* active buffer */
57	struct	resource *res_ioport, *res_sts, *res_ctl, *res_irq, *res_drq;
58	int	rid_ioport, rid_sts, rid_ctl, rid_irq, rid_drq;
59	bus_space_tag_t portt;
60	bus_space_handle_t porth;
61	bus_space_tag_t stst;
62	bus_space_handle_t stsh;
63	bus_space_tag_t ctlt;
64	bus_space_handle_t ctlh;
65	int	port_off;
66	int	ctl_off;
67	int	sts_off;
68	void	*fdc_intr;
69	struct	device *fdc_dev;
70	struct mtx fdc_mtx;
71	struct proc *fdc_thread;
72};
73
74extern devclass_t fdc_devclass;
75
76enum fdc_device_ivars {
77	FDC_IVAR_FDUNIT,
78	FDC_IVAR_FDTYPE,
79};
80
81__BUS_ACCESSOR(fdc, fdunit, FDC, FDUNIT, int);
82__BUS_ACCESSOR(fdc, fdtype, FDC, FDTYPE, int);
83
84void fdc_release_resources(struct fdc_data *);
85int fdc_attach(device_t);
86int fdc_hints_probe(device_t);
87int fdc_detach(device_t dev);
88device_t fdc_add_child(device_t, const char *, int);
89int fdc_initial_reset(device_t, struct fdc_data *);
90int fdc_print_child(device_t, device_t);
91int fdc_read_ivar(device_t, device_t, int, uintptr_t *);
92int fdc_write_ivar(device_t, device_t, int, uintptr_t);
93int fdc_isa_alloc_resources(device_t, struct fdc_data *);
94