2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2004-2005 M. Warner Losh <imp@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 /* XXX should audit this file to see if additional copyrights needed */
33 FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1
37 * Per controller structure (softc).
40 int fdcu; /* our unit number */
43 #define FDC_HASDMA 0x01
44 #define FDC_STAT_VALID 0x08
45 #define FDC_HAS_FIFO 0x10
46 #define FDC_NEEDS_RESET 0x20
47 #define FDC_NODMA 0x40 /* Don't do DMA */
48 #define FDC_NOFAST 0x80 /* Don't register isr as a fast one */
49 #define FDC_KTHREAD_EXIT 0x1000 /* request worker thread to stop */
50 #define FDC_KTHREAD_ALIVE 0x2000 /* worker thread is alive */
51 struct fd_data *fd; /* The active drive */
53 int fdout; /* mirror of the w/o digital output reg */
54 u_int status[7]; /* copy of the registers */
55 enum fdc_type fdct; /* chip version of FDC */
56 int fdc_errs; /* number of logged errors */
57 struct bio_queue_head head;
58 struct bio *bp; /* active buffer */
59 struct resource *res_irq, *res_drq;
62 int ridio[FDC_MAXREG];
63 struct resource *resio[FDC_MAXREG];
65 bus_space_handle_t ioh[FDC_MAXREG];
70 struct proc *fdc_thread;
73 extern devclass_t fdc_devclass;
75 enum fdc_device_ivars {
80 __BUS_ACCESSOR(fdc, fdunit, FDC, FDUNIT, int);
81 __BUS_ACCESSOR(fdc, fdtype, FDC, FDTYPE, int);
83 void fdc_release_resources(struct fdc_data *);
84 int fdc_attach(device_t);
85 void fdc_start_worker(device_t);
86 int fdc_hints_probe(device_t);
87 int fdc_detach(device_t dev);
88 device_t fdc_add_child(device_t, const char *, int);
89 int fdc_initial_reset(device_t, struct fdc_data *);
90 int fdc_print_child(device_t, device_t);
91 int fdc_read_ivar(device_t, device_t, int, uintptr_t *);
92 int fdc_write_ivar(device_t, device_t, int, uintptr_t);
93 int fdc_isa_alloc_resources(device_t, struct fdc_data *);