2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2004-2005 M. Warner Losh.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
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
20 * FOR 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
31 /* XXX should audit this file to see if additional copyrights needed */
34 FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1
38 * Per controller structure (softc).
41 int fdcu; /* our unit number */
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 /* Don't do DMA */
49 #define FDC_NOFAST 0x80 /* Don't register isr as a fast one */
50 #define FDC_KTHREAD_EXIT 0x1000 /* request worker thread to stop */
51 #define FDC_KTHREAD_ALIVE 0x2000 /* worker thread is alive */
52 struct fd_data *fd; /* The active drive */
54 int fdout; /* mirror of the w/o digital output reg */
55 u_int status[7]; /* copy of the registers */
56 enum fdc_type fdct; /* chip version of FDC */
57 int fdc_errs; /* number of logged errors */
58 struct bio_queue_head head;
59 struct bio *bp; /* active buffer */
60 struct resource *res_irq, *res_drq;
63 int ridio[FDC_MAXREG];
64 struct resource *resio[FDC_MAXREG];
66 bus_space_handle_t ioh[FDC_MAXREG];
71 struct proc *fdc_thread;
74 extern devclass_t fdc_devclass;
76 enum fdc_device_ivars {
81 __BUS_ACCESSOR(fdc, fdunit, FDC, FDUNIT, int);
82 __BUS_ACCESSOR(fdc, fdtype, FDC, FDTYPE, int);
84 void fdc_release_resources(struct fdc_data *);
85 int fdc_attach(device_t);
86 void fdc_start_worker(device_t);
87 int fdc_hints_probe(device_t);
88 int fdc_detach(device_t dev);
89 device_t fdc_add_child(device_t, const char *, int);
90 int fdc_initial_reset(device_t, struct fdc_data *);
91 int fdc_print_child(device_t, device_t);
92 int fdc_read_ivar(device_t, device_t, int, uintptr_t *);
93 int fdc_write_ivar(device_t, device_t, int, uintptr_t);
94 int fdc_isa_alloc_resources(device_t, struct fdc_data *);