xref: /freebsd/sys/dev/ata/ata_if.m (revision 39beb93c) 
1# Copyright (c) 2004 - 2008 S�ren Schmidt <sos@FreeBSD.org>
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions
6# are met:
7# 1. Redistributions of source code must retain the above copyright
8#    notice, this list of conditions and the following disclaimer,
9#    without modification, immediately at the beginning of the file.
10# 2. Redistributions in binary form must reproduce the above copyright
11#    notice, this list of conditions and the following disclaimer in the
12#    documentation and/or other materials provided with the distribution.
13#
14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24#
25# $FreeBSD$
26
27#include <sys/bus.h>
28#include <sys/kernel.h>
29#include <sys/param.h>
30#include <sys/types.h>
31#include <sys/callout.h>
32#include <sys/sema.h>
33#include <sys/taskqueue.h>
34#include <vm/uma.h>
35#include <machine/bus.h>
36#include <sys/ata.h>
37#include <dev/ata/ata-all.h>
38
39INTERFACE ata;
40
41CODE {
42	static int ata_null_locking(device_t dev, int mode)
43	{
44	    struct ata_channel *ch = device_get_softc(dev);
45
46	    return ch->unit;
47	}
48};
49METHOD int locking {
50    device_t    channel;
51    int         mode;
52} DEFAULT ata_null_locking;
53HEADER {
54#define         ATA_LF_LOCK             0x0001
55#define         ATA_LF_UNLOCK           0x0002
56#define         ATA_LF_WHICH            0x0004
57};
58
59CODE {
60	static void ata_null_setmode(device_t parent, device_t dev)
61	{
62	    struct ata_device *atadev = device_get_softc(dev);
63
64	    atadev->mode = ata_limit_mode(dev, atadev->mode, ATA_PIO_MAX);
65	}
66};
67METHOD void setmode {
68    device_t    channel;
69    device_t    dev;
70}  DEFAULT ata_null_setmode;;
71
72METHOD void reset {
73    device_t    channel;
74} DEFAULT ata_generic_reset;
75
76METHOD int reinit {
77    device_t    dev;
78};
79