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
|
/* $OpenBSD: sii_fwio.c,v 1.2 2008/08/23 12:40:22 miod Exp $ */
/*
* Copyright (c) 2008 Miodrag Vallat.
*
* 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/device.h>
#include <machine/bus.h>
#include <machine/cvax.h>
#include <uvm/uvm_extern.h>
#include <vax/mbus/mbusreg.h>
#include <vax/mbus/mbusvar.h>
#include <vax/mbus/fwioreg.h>
#include <vax/mbus/fwiovar.h>
#include <scsi/scsi_all.h>
#include <scsi/scsiconf.h>
#include <scsi/scsi_message.h>
#include <vax/dec/siireg.h>
#include <vax/dec/siivar.h>
struct sii_fwio_softc {
struct sii_softc sc_dev;
u_char *sc_buf;
};
int sii_fwio_match(struct device *, void *, void *);
void sii_fwio_attach(struct device *, struct device *, void *);
struct cfattach sii_fwio_ca = {
sizeof(struct sii_fwio_softc), sii_fwio_match, sii_fwio_attach
};
extern struct cfdriver sii_cd;
void sii_fwio_copyfrombuf(void *, u_int, u_char *, int);
void sii_fwio_copytobuf(void *, u_char *, u_int, int);
int sii_fwio_intr(void *);
int
sii_fwio_match(struct device *parent, void *vcf, void *aux)
{
struct fwio_attach_args *faa = (struct fwio_attach_args *)aux;
return strcmp(faa->faa_dev, sii_cd.cd_name) == 0 ? 1 : 0;
}
void
sii_fwio_attach(struct device *parent, struct device *self, void *aux)
{
struct fwio_attach_args *faa = (struct fwio_attach_args *)aux;
struct sii_fwio_softc *sfc = (struct sii_fwio_softc *)self;
struct sii_softc *sc = &sfc->sc_dev;
unsigned int vec;
vec = faa->faa_vecbase + FBIC_DEVIRQ0 * 4;
printf(" vec %d", vec);
/*
* Map registers.
*/
sc->sc_regs =
(SIIRegs *)vax_map_physmem(faa->faa_base + FWIO_SII_REG_OFFSET, 1);
/*
* Map buffers.
*/
sfc->sc_buf = (u_char *)uvm_km_valloc(kernel_map, FWIO_SII_BUF_SIZE);
if (sfc->sc_buf == NULL) {
vax_unmap_physmem(faa->faa_base + FWIO_SII_REG_OFFSET, 1);
printf(": can't map buffers\n");
return;
}
ioaccess((vaddr_t)sfc->sc_buf, faa->faa_base + FWIO_SII_BUF_OFFSET,
FWIO_SII_BUF_SIZE >> VAX_PGSHIFT);
sc->sii_copytobuf = sii_fwio_copytobuf;
sc->sii_copyfrombuf = sii_fwio_copyfrombuf;
/*
* Register interrupt handler.
*/
if (mbus_intr_establish(vec, IPL_BIO, sii_fwio_intr, sfc,
self->dv_xname) != 0) {
vax_unmap_physmem(faa->faa_base + FWIO_SII_REG_OFFSET, 1);
uvm_km_free(kernel_map, (vaddr_t)sfc->sc_buf,
FWIO_SII_BUF_SIZE);
printf(": can't establish interrupt\n");
return;
}
/*
* Complete attachment.
*/
sc->sc_hostid = *(uint8_t *)((vaddr_t)cvax_ssc_ptr + 0x4c0) & 07;
sii_attach(sc);
}
int
sii_fwio_intr(void *v)
{
struct sii_softc *sc = (struct sii_softc *)v;
int rc;
uint16_t csr;
/*
* FBIC expects edge interrupts, while the sii does level
* interrupts. To avoid missing interrupts while servicing,
* we disable further device interrupts while servicing.
*/
csr = sc->sc_regs->csr;
sc->sc_regs->csr = csr & ~SII_IE;
rc = sii_intr(v);
sc->sc_regs->csr = csr;
return rc;
}
/*
* Copy data between the fixed SCSI buffers. The sii driver only ``knows''
* offsets inside the SCSI buffer.
*/
void
sii_fwio_copyfrombuf(void *v, u_int offs, u_char *dst, int len)
{
struct sii_fwio_softc *sc = (struct sii_fwio_softc *)v;
u_char *src = sc->sc_buf + offs;
memcpy(dst, src, len);
}
void
sii_fwio_copytobuf(void *v, u_char *src, u_int offs, int len)
{
struct sii_fwio_softc *sc = (struct sii_fwio_softc *)v;
u_char *dst = sc->sc_buf + offs;
memcpy(dst, src, len);
}
|
