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
|
/* $OpenBSD: tmscp.c,v 1.4 1997/05/29 00:04:28 niklas Exp $ */
/* $NetBSD: tmscp.c,v 1.3 1996/08/02 11:22:53 ragge Exp $ */
/*
* Copyright (c) 1995 Ludd, University of Lule}, Sweden.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed at Ludd, University of Lule}.
* 4. 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.
*/
/* All bugs are subject to removal without further notice */
#define NRSP 0 /* Kludge */
#define NCMD 0 /* Kludge */
#include "sys/param.h"
#include "sys/disklabel.h"
#include "lib/libsa/stand.h"
#include "../include/pte.h"
#include "../include/macros.h"
#include "../uba/ubareg.h"
#include "../uba/udareg.h"
#include "../mscp/mscp.h"
#include "../mscp/mscpreg.h"
#include "vaxstand.h"
static command(int,int);
/*
* These routines for TMSCP tape standalone boot is very simple,
* assuming a lots of thing like that we only working at one tape at
* a time, no separate routines for uba driver etc..
* This code is directly copied from ra disk driver.
*/
struct ra_softc {
int udaddr;
int ubaddr;
int unit;
};
static volatile struct uda {
struct mscp_1ca uda_ca; /* communications area */
struct mscp uda_rsp; /* response packets */
struct mscp uda_cmd; /* command packets */
} uda;
static volatile struct uda *ubauda;
static volatile struct udadevice *udacsr;
static struct ra_softc ra_softc;
static char io_buf[MAXBSIZE];
tmscpopen(f, adapt, ctlr, unit, part)
struct open_file *f;
int ctlr, unit, part;
{
char *msg;
extern u_int tmsaddr;
volatile struct ra_softc *ra=&ra_softc;
volatile struct uba_regs *mr=(void *)ubaaddr[adapt];
volatile u_int *nisse;
unsigned short johan;
int i,err;
if(adapt>nuba) return(EADAPT);
if(ctlr>nuda) return(ECTLR);
ra->udaddr=uioaddr[adapt]+tmsaddr;
ra->ubaddr=(int)mr;
ra->unit=unit;
udacsr=(void*)ra->udaddr;
nisse=(u_int *)&mr->uba_map[0];
nisse[494]=PG_V|(((u_int)&uda)>>9);
nisse[495]=nisse[494]+1;
ubauda=(void*)0x3dc00+(((u_int)(&uda))&0x1ff);
/*
* Init of this tmscp ctlr.
*/
udacsr->udaip=0; /* Start init */
while((udacsr->udasa&MP_STEP1) == 0);
udacsr->udasa=0x8000;
while((udacsr->udasa&MP_STEP2) == 0);
johan=(((u_int)ubauda)&0xffff)+8;
udacsr->udasa=johan;
while((udacsr->udasa&MP_STEP3) == 0);
udacsr->udasa=3;
while((udacsr->udasa&MP_STEP4) == 0);
udacsr->udasa=0x0001;
uda.uda_ca.ca_rspdsc=(int)&ubauda->uda_rsp.mscp_cmdref;
uda.uda_ca.ca_cmddsc=(int)&ubauda->uda_cmd.mscp_cmdref;
uda.uda_cmd.mscp_un.un_seq.seq_addr = (long *)&uda.uda_ca.ca_cmddsc;
uda.uda_rsp.mscp_un.un_seq.seq_addr = (long *)&uda.uda_ca.ca_rspdsc;
uda.uda_cmd.mscp_vcid = 1;
uda.uda_cmd.mscp_un.un_sccc.sccc_ctlrflags = 0;
command(M_OP_SETCTLRC, 0);
uda.uda_cmd.mscp_unit=ra->unit;
command(M_OP_ONLINE, 0);
if (part) {
uda.uda_cmd.mscp_un.un_seq.seq_buffer = part;
command(M_OP_POS, 0);
uda.uda_cmd.mscp_un.un_seq.seq_buffer = 0;
}
f->f_devdata=(void *)ra;
return(0);
}
static
command(cmd, arg)
{
volatile int hej;
uda.uda_cmd.mscp_opcode = cmd;
uda.uda_cmd.mscp_modifier = arg;
uda.uda_cmd.mscp_msglen = MSCP_MSGLEN;
uda.uda_rsp.mscp_msglen = MSCP_MSGLEN;
uda.uda_ca.ca_rspdsc |= MSCP_OWN|MSCP_INT;
uda.uda_ca.ca_cmddsc |= MSCP_OWN|MSCP_INT;
hej = udacsr->udaip;
while (uda.uda_ca.ca_rspdsc < 0) {
if (uda.uda_ca.ca_cmdint)
uda.uda_ca.ca_cmdint = 0;
}
}
static int curblock = 0;
tmscpstrategy(ra, func, dblk, size, buf, rsize)
struct ra_softc *ra;
int func;
daddr_t dblk;
char *buf;
u_int size, *rsize;
{
u_int i,j,pfnum, mapnr, nsize, bn, cn, sn, tn;
volatile struct uba_regs *ur=(void *)ra->ubaddr;
volatile struct udadevice *udadev=(void*)ra->udaddr;
volatile u_int *ptmapp = (u_int *)&ur->uba_map[0];
volatile int hej;
pfnum=(u_int)buf>>PGSHIFT;
for(mapnr=0, nsize=size;(nsize+NBPG)>0;nsize-=NBPG)
ptmapp[mapnr++]=PG_V|pfnum++;
/*
* First position tape. Remember where we are.
*/
if (dblk < curblock) {
uda.uda_cmd.mscp_seq.seq_bytecount = curblock - dblk;
command(M_OP_POS, 12); /* 12 == step block backward */
} else {
uda.uda_cmd.mscp_seq.seq_bytecount = dblk - curblock;
command(M_OP_POS, 4); /* 4 == step block forward */
}
curblock = size/512 + dblk;
/*
* Read in the number of blocks we need.
* Why doesn't read of multiple blocks work?????
*/
for (i = 0 ; i < size/512 ; i++) {
uda.uda_cmd.mscp_seq.seq_lbn = 1;
uda.uda_cmd.mscp_seq.seq_bytecount = 512;
uda.uda_cmd.mscp_seq.seq_buffer =
(((u_int)buf) & 0x1ff) + i * 512;
uda.uda_cmd.mscp_unit = ra->unit;
command(M_OP_READ, 0);
}
*rsize=size;
return 0;
}
|
