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
|
/*
* Copyright 2002 by Peter Grehan. All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*/
/*
* Mac-io ATA controller
*/
#include "opt_ata.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/disk.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/bio.h>
#include <sys/malloc.h>
#include <sys/devicestat.h>
#include <sys/sysctl.h>
#include <machine/stdarg.h>
#include <machine/resource.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <dev/ata/ata-all.h>
#include <dev/ofw/openfirm.h>
#include <powerpc/powermac/maciovar.h>
/*
* Define the macio ata bus attachment. This creates a pseudo-bus that
* the ATA device can be attached to
*/
static int ata_macio_attach(device_t dev);
static int ata_macio_probe(device_t dev);
static int ata_macio_print_child(device_t dev, device_t child);
struct resource *ata_macio_alloc_resource(device_t, device_t, int, int *,
u_long, u_long, u_long, u_int);
static int ata_macio_release_resource(device_t, device_t, int, int,
struct resource *);
static device_method_t ata_macio_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ata_macio_probe),
DEVMETHOD(device_attach, ata_macio_attach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
/* Bus methods */
DEVMETHOD(bus_print_child, ata_macio_print_child),
DEVMETHOD(bus_alloc_resource, ata_macio_alloc_resource),
DEVMETHOD(bus_release_resource, ata_macio_release_resource),
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
{ 0, 0 }
};
static driver_t ata_macio_driver = {
"atamacio",
ata_macio_methods,
0,
};
static devclass_t ata_macio_devclass;
DRIVER_MODULE(atamacio, macio, ata_macio_driver, ata_macio_devclass, 0, 0);
static int
ata_macio_probe(device_t dev)
{
char *type = macio_get_devtype(dev);
if (strcmp(type, "ata") != 0)
return (ENXIO);
/* Print keylargo/pangea ??? */
device_set_desc(dev, "Mac-IO ATA Controller");
return (0);
}
static int
ata_macio_attach(device_t dev)
{
/*
* Add a single child per controller. Should be able
* to add two
*/
device_add_child(dev, "ata",
devclass_find_free_unit(ata_devclass, 0));
return (bus_generic_attach(dev));
}
static int
ata_macio_print_child(device_t dev, device_t child)
{
int retval = 0;
retval += bus_print_child_header(dev, child);
retval += bus_print_child_footer(dev, child);
return (retval);
}
/* offset to control registers from base */
#define ATA_MACIO_ALTOFFSET 0x160
struct resource *
ata_macio_alloc_resource(device_t dev, device_t child, int type, int *rid,
u_long start, u_long end, u_long count, u_int flags)
{
struct resource *res = NULL;
int myrid;
u_int *ofw_regs;
ofw_regs = macio_get_regs(dev);
/*
* The offset for the register bank is in the first ofw register,
* with the base address coming from the parent macio bus (but
* accessible via the ata-macio child)
*/
if (type == SYS_RES_IOPORT) {
switch (*rid) {
case ATA_IOADDR_RID:
myrid = 0;
start = ofw_regs[0];
end = start + (ATA_IOSIZE << 4) - 1;
count = ATA_IOSIZE << 4;
res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
SYS_RES_IOPORT, &myrid,
start, end, count,
PPC_BUS_SPARSE4 | flags);
break;
case ATA_ALTADDR_RID:
myrid = 0;
start = ofw_regs[0] + ATA_MACIO_ALTOFFSET;
end = start + (ATA_ALTIOSIZE << 4) - 1;
count = ATA_ALTIOSIZE << 4;
res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
SYS_RES_IOPORT, &myrid,
start, end, count,
PPC_BUS_SPARSE4 | flags);
break;
case ATA_BMADDR_RID:
/* looks difficult to support DBDMA in FreeBSD... */
break;
}
return (res);
} else if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) {
/*
* Pass this on to the parent, using the IRQ from the
* ATA pseudo-bus resource
*/
res = bus_generic_rl_alloc_resource(device_get_parent(dev),
dev, SYS_RES_IRQ, 0, 0, ~0, 1, flags);
return (res);
} else {
return (NULL);
}
}
static int
ata_macio_release_resource(device_t dev, device_t child, int type, int rid,
struct resource *r)
{
printf("macio: release resource\n");
return (0);
}
/*
* Define the actual ATA device. This is a sub-bus to the ata-macio layer
* to allow the higher layer bus to massage the resource allocation.
*/
static int ata_macio_sub_probe(device_t dev);
static device_method_t ata_macio_sub_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ata_macio_sub_probe),
DEVMETHOD(device_attach, ata_attach),
DEVMETHOD(device_detach, ata_detach),
DEVMETHOD(device_resume, ata_resume),
{ 0, 0 }
};
static driver_t ata_macio_sub_driver = {
"ata",
ata_macio_sub_methods,
sizeof(struct ata_channel),
};
DRIVER_MODULE(ata, atamacio, ata_macio_sub_driver, ata_devclass, 0, 0);
static int
ata_macio_sub_probe(device_t dev)
{
struct ata_channel *ch = device_get_softc(dev);
ch->unit = 0;
ch->flags = ATA_USE_16BIT;
return ata_probe(dev);
}
|
