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
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
|
/* $OpenBSD: wdc_isa.c,v 1.8 2002/03/14 01:26:56 millert Exp $ */
/* $NetBSD: wdc_isa.c,v 1.15 1999/05/19 14:41:25 bouyer 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/wdcvar.h>
#ifdef __OpenBSD__
#include "isadma.h"
#else
#define NISADMA 1
#endif
#define WDC_ISA_REG_NPORTS 8
#define WDC_ISA_AUXREG_OFFSET 0x206
#define WDC_ISA_AUXREG_NPORTS 1 /* XXX "fdc" owns ports 0x3f7/0x377 */
/* options passed via the 'flags' config keyword */
#define WDC_OPTIONS_32 0x01 /* try to use 32bit data I/O */
struct wdc_isa_softc {
struct wdc_softc sc_wdcdev;
struct channel_softc *wdc_chanptr;
struct channel_softc wdc_channel;
#ifdef __OpenBSD__
struct device *sc_isa;
#endif
isa_chipset_tag_t sc_ic;
void *sc_ih;
int sc_drq;
};
#ifndef __OpenBSD__
int wdc_isa_probe(struct device *, struct cfdata *, void *);
#else
int wdc_isa_probe(struct device *, void *, void *);
#endif
void wdc_isa_attach(struct device *, struct device *, void *);
struct cfattach wdc_isa_ca = {
sizeof(struct wdc_isa_softc), wdc_isa_probe, wdc_isa_attach
};
#if NISADMA > 0
static void wdc_isa_dma_setup(struct wdc_isa_softc *);
static int wdc_isa_dma_init(void*, int, int, void *, size_t, int);
static void wdc_isa_dma_start(void*, int, int);
static int wdc_isa_dma_finish(void*, int, int);
#endif /* NISADMA > 0 */
int
wdc_isa_probe(parent, match, aux)
struct device *parent;
#ifndef __OpenBSD__
struct cfdata *match;
#else
void *match;
#endif
void *aux;
{
struct channel_softc ch;
struct isa_attach_args *ia = aux;
struct cfdata *cf = match;
int result = 0;
bzero(&ch, sizeof ch);
ch.cmd_iot = ia->ia_iot;
if (bus_space_map(ch.cmd_iot, ia->ia_iobase, WDC_ISA_REG_NPORTS, 0,
&ch.cmd_ioh))
goto out;
ch.ctl_iot = ia->ia_iot;
if (bus_space_map(ch.ctl_iot, ia->ia_iobase + WDC_ISA_AUXREG_OFFSET,
WDC_ISA_AUXREG_NPORTS, 0, &ch.ctl_ioh))
goto outunmap;
if (cf->cf_flags & WDC_OPTION_PROBE_VERBOSE)
ch.ch_flags |= WDCF_VERBOSE_PROBE;
result = wdcprobe(&ch);
if (result) {
ia->ia_iosize = WDC_ISA_REG_NPORTS;
ia->ia_msize = 0;
}
bus_space_unmap(ch.ctl_iot, ch.ctl_ioh, WDC_ISA_AUXREG_NPORTS);
outunmap:
bus_space_unmap(ch.cmd_iot, ch.cmd_ioh, WDC_ISA_REG_NPORTS);
out:
return (result);
}
void
wdc_isa_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct wdc_isa_softc *sc = (void *)self;
struct isa_attach_args *ia = aux;
printf("\n");
sc->wdc_channel.cmd_iot = ia->ia_iot;
sc->wdc_channel.ctl_iot = ia->ia_iot;
sc->sc_ic = ia->ia_ic;
sc->sc_isa = parent;
if (bus_space_map(sc->wdc_channel.cmd_iot, ia->ia_iobase,
WDC_ISA_REG_NPORTS, 0, &sc->wdc_channel.cmd_ioh) ||
bus_space_map(sc->wdc_channel.ctl_iot,
ia->ia_iobase + WDC_ISA_AUXREG_OFFSET, WDC_ISA_AUXREG_NPORTS,
0, &sc->wdc_channel.ctl_ioh)) {
printf("%s: couldn't map registers\n",
sc->sc_wdcdev.sc_dev.dv_xname);
}
sc->wdc_channel.data32iot = sc->wdc_channel.cmd_iot;
sc->wdc_channel.data32ioh = sc->wdc_channel.cmd_ioh;
#ifdef __OpenBSD__
sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
IPL_BIO, wdcintr, &sc->wdc_channel, sc->sc_wdcdev.sc_dev.dv_xname);
#else
sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
IPL_BIO, wdcintr, &sc->wdc_channel);
#endif
if (ia->ia_drq != DRQUNK) {
#if NISADMA > 0
sc->sc_drq = ia->ia_drq;
sc->sc_wdcdev.cap |= WDC_CAPABILITY_DMA;
sc->sc_wdcdev.dma_arg = sc;
sc->sc_wdcdev.dma_init = wdc_isa_dma_init;
sc->sc_wdcdev.dma_start = wdc_isa_dma_start;
sc->sc_wdcdev.dma_finish = wdc_isa_dma_finish;
wdc_isa_dma_setup(sc);
#else /* NISADMA > 0 */
printf("%s: ignoring drq, isa dma not supported",
sc->sc_wdcdev.sc_dev.dv_xname);
#endif /* NISADMA > 0 */
}
sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_PREATA;
if (sc->sc_wdcdev.sc_dev.dv_cfdata->cf_flags & WDC_OPTIONS_32)
sc->sc_wdcdev.cap |= 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("%s: can't allocate memory for command queue",
sc->sc_wdcdev.sc_dev.dv_xname);
return;
}
wdcattach(&sc->wdc_channel);
wdc_print_current_modes(&sc->wdc_channel);
}
#if NISADMA > 0
static void
wdc_isa_dma_setup(sc)
struct wdc_isa_softc *sc;
{
#ifndef __OpenBSD__
if (isa_dmamap_create(sc->sc_ic, sc->sc_drq,
MAXPHYS, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) {
#else
if (isa_dmamap_create(sc->sc_isa, sc->sc_drq,
MAXPHYS, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) {
#endif
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 int
wdc_isa_dma_init(v, channel, drive, databuf, datalen, read)
void *v;
void *databuf;
size_t datalen;
int read;
{
struct wdc_isa_softc *sc = v;
#ifndef __OpenBSD__
isa_dmastart(sc->sc_ic, sc->sc_drq, databuf, datalen, NULL,
(read ? DMAMODE_READ : DMAMODE_WRITE) | DMAMODE_DEMAND,
BUS_DMA_NOWAIT);
#else
isa_dmastart(sc->sc_isa, sc->sc_drq, databuf, datalen, NULL,
(read ? DMAMODE_READ : DMAMODE_WRITE),
BUS_DMA_NOWAIT);
#endif
return 0;
}
static void
wdc_isa_dma_start(v, channel, drive)
void *v;
int channel, drive;
{
/* nothing to do */
}
static int
wdc_isa_dma_finish(v, channel, drive)
void *v;
int channel, drive;
{
struct wdc_isa_softc *sc = v;
#ifndef __OpenBSD__
isa_dmadone(sc->sc_ic, sc->sc_drq);
#else
isa_dmadone(sc->sc_isa, sc->sc_drq);
#endif
return 0;
}
#endif /* NISADMA > 0 */
|
