1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
/* $NetBSD: wdc_isapnp.c,v 1.13 1999/03/22 10:00:12 mycroft Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum and by Onno van der Linden.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.h>
#include <dev/ata/atavar.h>
#include <dev/ic/wdcreg.h>
#include <dev/ic/wdcvar.h>
struct wdc_isapnp_softc {
struct wdc_softc sc_wdcdev;
struct channel_softc *wdc_chanptr;
struct channel_softc wdc_channel;
isa_chipset_tag_t sc_ic;
void *sc_ih;
int sc_drq;
};
int wdc_isapnp_match __P((struct device *, void *, void *));
void wdc_isapnp_attach __P((struct device *, struct device *, void *));
struct cfattach wdc_isapnp_ca = {
sizeof(struct wdc_isapnp_softc), wdc_isapnp_match, wdc_isapnp_attach
};
#ifdef notyet
static void wdc_isapnp_dma_setup __P((struct wdc_isapnp_softc *));
static void wdc_isapnp_dma_start __P((void *, void *, size_t, int));
static void wdc_isapnp_dma_finish __P((void *));
#endif
int
wdc_isapnp_match(parent, match, aux)
struct device *parent;
void *match;
void *aux;
{
return (1);
}
void
wdc_isapnp_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct wdc_isapnp_softc *sc = (void *)self;
struct isa_attach_args *ipa = aux;
if (ipa->ipa_nio != 2 ||
ipa->ipa_nmem != 0 ||
ipa->ipa_nmem32 != 0 ||
ipa->ipa_nirq != 1 ||
ipa->ipa_ndrq > 1) {
printf(": unexpected configuration\n");
return;
}
sc->wdc_channel.cmd_iot = ipa->ia_iot;
sc->wdc_channel.ctl_iot = ipa->ia_iot;
/*
* An IDE controller can feed us the regions in any order. Pass
* them along with the 8-byte region in sc_ad.ioh, and the other
* (2 byte) region in auxioh.
*/
if (ipa->ipa_io[0].length == 8) {
sc->wdc_channel.cmd_ioh = ipa->ipa_io[0].h;
sc->wdc_channel.ctl_ioh = ipa->ipa_io[1].h;
} else {
sc->wdc_channel.cmd_ioh = ipa->ipa_io[1].h;
sc->wdc_channel.ctl_ioh = ipa->ipa_io[0].h;
}
sc->wdc_channel.data32iot = sc->wdc_channel.cmd_iot;
sc->wdc_channel.data32ioh = sc->wdc_channel.cmd_ioh;
sc->sc_ic = ipa->ia_ic;
sc->sc_ih = isa_intr_establish(ipa->ia_ic, ipa->ipa_irq[0].num,
ipa->ipa_irq[0].type, IPL_BIO, wdcintr, &sc->wdc_channel,
sc->sc_wdcdev.sc_dev.dv_xname);
#ifdef notyet
if (ipa->ipa_ndrq > 0) {
sc->sc_drq = ipa->ipa_drq[0].num;
sc->sc_ad.cap |= WDC_CAPABILITY_DMA;
sc->sc_ad.dma_start = &wdc_isapnp_dma_start;
sc->sc_ad.dma_finish = &wdc_isapnp_dma_finish;
wdc_isapnp_dma_setup(sc);
}
#endif
sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_DATA32;
sc->sc_wdcdev.PIO_cap = 0;
sc->wdc_chanptr = &sc->wdc_channel;
sc->sc_wdcdev.channels = &sc->wdc_chanptr;
sc->sc_wdcdev.nchannels = 1;
sc->wdc_channel.channel = 0;
sc->wdc_channel.wdc = &sc->sc_wdcdev;
sc->wdc_channel.ch_queue = malloc(sizeof(struct channel_queue),
M_DEVBUF, M_NOWAIT);
if (sc->wdc_channel.ch_queue == NULL) {
printf(": can't allocate memory for command queue\n");
return;
}
printf("\n");
wdcattach(&sc->wdc_channel);
}
#ifdef notyet
static void
wdc_isapnp_dma_setup(sc)
struct wdc_isapnp_softc *sc;
{
if (isa_dmamap_create(sc->sc_ic, sc->sc_drq,
MAXPHYS, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) {
printf("%s: can't create map for drq %d\n",
sc->sc_wdcdev.sc_dev.dv_xname, sc->sc_drq);
sc->sc_wdcdev.cap &= ~WDC_CAPABILITY_DMA;
}
}
static void
wdc_isapnp_dma_start(scv, buf, size, read)
void *scv, *buf;
size_t size;
int read;
{
struct wdc_isapnp_softc *sc = scv;
isa_dmastart(sc->sc_ic, sc->sc_drq, buf, size, NULL,
(read ? DMAMODE_READ : DMAMODE_WRITE) | DMAMODE_DEMAND,
BUS_DMA_NOWAIT);
}
static void
wdc_isapnp_dma_finish(scv)
void *scv;
{
struct wdc_isapnp_softc *sc = scv;
isa_dmadone(sc->sc_ic, sc->sc_drq);
}
#endif
|