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
|
/* $OpenBSD: sili.c,v 1.6 2007/04/04 10:49:42 dlg Exp $ */
/*
* Copyright (c) 2007 David Gwynne <dlg@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <machine/bus.h>
#include <dev/ata/atascsi.h>
#include <dev/ic/silireg.h>
#include <dev/ic/silivar.h>
struct cfdriver sili_cd = {
NULL, "sili", DV_DULL
};
struct sili_port {
struct sili_softc *sp_sc;
bus_space_handle_t sp_ioh;
};
int sili_ports_alloc(struct sili_softc *);
void sili_ports_free(struct sili_softc *);
u_int32_t sili_read(struct sili_softc *, bus_size_t);
void sili_write(struct sili_softc *, bus_size_t, u_int32_t);
u_int32_t sili_pread(struct sili_port *, bus_size_t);
void sili_pwrite(struct sili_port *, bus_size_t, u_int32_t);
/* atascsi interface */
int sili_ata_probe(void *, int);
struct ata_xfer *sili_ata_get_xfer(void *, int);
void sili_ata_put_xfer(struct ata_xfer *);
int sili_ata_cmd(struct ata_xfer *);
struct atascsi_methods sili_atascsi_methods = {
sili_ata_probe,
sili_ata_get_xfer,
sili_ata_cmd
};
int
sili_attach(struct sili_softc *sc)
{
struct atascsi_attach_args aaa;
printf("\n");
if (sili_ports_alloc(sc) != 0) {
/* error already printed by sili_port_alloc */
return (1);
}
/* bounce the controller */
sili_write(sc, SILI_REG_GC, SILI_REG_GC_GR);
sili_write(sc, SILI_REG_GC, 0x0);
bzero(&aaa, sizeof(aaa));
aaa.aaa_cookie = sc;
aaa.aaa_methods = &sili_atascsi_methods;
aaa.aaa_minphys = minphys;
aaa.aaa_nports = sc->sc_nports;
aaa.aaa_ncmds = SILI_MAX_CMDS;
sc->sc_atascsi = atascsi_attach(&sc->sc_dev, &aaa);
return (0);
}
int
sili_detach(struct sili_softc *sc, int flags)
{
return (0);
}
int
sili_intr(void *arg)
{
#if 0
struct sili_softc *sc = arg;
#endif
return (0);
}
int
sili_ports_alloc(struct sili_softc *sc)
{
struct sili_port *sp;
int i;
sc->sc_ports = malloc(sizeof(struct sili_port) * sc->sc_nports,
M_DEVBUF, M_WAITOK);
bzero(sc->sc_ports, sizeof(struct sili_port) * sc->sc_nports);
for (i = 0; i < sc->sc_nports; i++) {
sp = &sc->sc_ports[i];
sp->sp_sc = sc;
if (bus_space_subregion(sc->sc_iot_port, sc->sc_ioh_port,
SILI_PORT_OFFSET(i), SILI_PORT_SIZE, &sp->sp_ioh) != 0) {
printf("%s: unable to create register window "
"for port %d\n", DEVNAME(sc), i);
goto freeports;
}
}
return (0);
freeports:
/* bus_space(9) says subregions dont have to be freed */
free(sp, M_DEVBUF);
sc->sc_ports = NULL;
return (1);
}
void
sili_ports_free(struct sili_softc *sc)
{
/* bus_space(9) says subregions dont have to be freed */
free(sc->sc_ports, M_DEVBUF);
sc->sc_ports = NULL;
}
u_int32_t
sili_read(struct sili_softc *sc, bus_size_t r)
{
u_int32_t rv;
bus_space_barrier(sc->sc_iot_global, sc->sc_ioh_global, r, 4,
BUS_SPACE_BARRIER_READ);
rv = bus_space_read_4(sc->sc_iot_global, sc->sc_ioh_global, r);
return (rv);
}
void
sili_write(struct sili_softc *sc, bus_size_t r, u_int32_t v)
{
bus_space_write_4(sc->sc_iot_global, sc->sc_ioh_global, r, v);
bus_space_barrier(sc->sc_iot_global, sc->sc_ioh_global, r, 4,
BUS_SPACE_BARRIER_WRITE);
}
u_int32_t
sili_pread(struct sili_port *sp, bus_size_t r)
{
u_int32_t rv;
bus_space_barrier(sp->sp_sc->sc_iot_port, sp->sp_ioh, r, 4,
BUS_SPACE_BARRIER_READ);
rv = bus_space_read_4(sp->sp_sc->sc_iot_port, sp->sp_ioh, r);
return (rv);
}
void
sili_pwrite(struct sili_port *sp, bus_size_t r, u_int32_t v)
{
bus_space_write_4(sp->sp_sc->sc_iot_port, sp->sp_ioh, r, v);
bus_space_barrier(sp->sp_sc->sc_iot_port, sp->sp_ioh, r, 4,
BUS_SPACE_BARRIER_WRITE);
}
int
sili_ata_probe(void *xsc, int port)
{
return (ATA_PORT_T_NONE);
}
int
sili_ata_cmd(struct ata_xfer *xa)
{
return (ATA_ERROR);
}
struct ata_xfer *
sili_ata_get_xfer(void *xsc, int port)
{
return (NULL);
}
|
