xref: /netbsd/sys/arch/amiga/dev/empsc.c (revision 6550d01e)
1 /*	$NetBSD: empsc.c,v 1.26 2005/12/11 12:16:28 christos Exp $ */
2 
3 /*
4  * Copyright (c) 1982, 1990 The Regents of the University of California.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  *
31  */
32 
33 /*
34 
35  * Copyright (c) 1995 Sean Riddle, Bo Najdrovsky
36  * Copyright (c) 1994 Michael L. Hitch
37  *
38  * Redistribution and use in source and binary forms, with or without
39  * modification, are permitted provided that the following conditions
40  * are met:
41  * 1. Redistributions of source code must retain the above copyright
42  *    notice, this list of conditions and the following disclaimer.
43  * 2. Redistributions in binary form must reproduce the above copyright
44  *    notice, this list of conditions and the following disclaimer in the
45  *    documentation and/or other materials provided with the distribution.
46  * 3. All advertising materials mentioning features or use of this software
47  *    must display the following acknowledgement:
48  *	This product includes software developed by the University of
49  *	California, Berkeley and its contributors.
50  * 4. Neither the name of the University nor the names of its contributors
51  *    may be used to endorse or promote products derived from this software
52  *    without specific prior written permission.
53  *
54  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
64  * SUCH DAMAGE.
65  *
66  */
67 
68 #include <sys/cdefs.h>
69 __KERNEL_RCSID(0, "$NetBSD: empsc.c,v 1.26 2005/12/11 12:16:28 christos Exp $");
70 
71 #include <sys/param.h>
72 #include <sys/systm.h>
73 #include <sys/kernel.h>
74 #include <sys/device.h>
75 #include <dev/scsipi/scsi_all.h>
76 #include <dev/scsipi/scsipi_all.h>
77 #include <dev/scsipi/scsiconf.h>
78 #include <amiga/amiga/custom.h>
79 #include <amiga/amiga/device.h>
80 #include <amiga/amiga/isr.h>
81 #include <amiga/dev/scireg.h>
82 #include <amiga/dev/scivar.h>
83 #include <amiga/dev/zbusvar.h>
84 
85 void empscattach(struct device *, struct device *, void *);
86 int empscmatch(struct device *, struct cfdata *, void *);
87 int empsc_intr(void *);
88 
89 #ifdef DEBUG
90 extern int sci_debug;
91 #endif
92 
93 extern int sci_data_wait;
94 
95 CFATTACH_DECL(empsc, sizeof(struct sci_softc),
96     empscmatch, empscattach, NULL, NULL);
97 
98 /*
99  * if this is an EMPLANT board
100  */
101 int
102 empscmatch(struct device *pdp, struct cfdata *cfp, void *auxp)
103 {
104 	struct zbus_args *zap;
105 
106 	zap = auxp;
107 
108 	/*
109 	 * Check manufacturer and product id.
110 	 */
111 	if (zap->manid == 2171 && ((zap->prodid == 21)||(zap->prodid==32)))
112 		return(1);
113 	else
114 		return(0);
115 }
116 
117 void
118 empscattach(struct device *pdp, struct device *dp, void *auxp)
119 {
120 	volatile u_char *rp;
121 	struct sci_softc *sc = (struct sci_softc *)dp;
122 	struct zbus_args *zap;
123 	struct scsipi_adapter *adapt = &sc->sc_adapter;
124 	struct scsipi_channel *chan = &sc->sc_channel;
125 
126 	printf("\n");
127 
128 	zap = auxp;
129 
130 	rp = (u_char *)zap->va + 0x5000;
131 
132 	sc->sci_data = rp;
133 	sc->sci_odata = rp;
134 	sc->sci_icmd = rp + 0x10;
135 	sc->sci_mode = rp + 0x20;
136 	sc->sci_tcmd = rp + 0x30;
137 	sc->sci_bus_csr = rp + 0x40;
138 	sc->sci_sel_enb = rp + 0x40;
139 	sc->sci_csr = rp + 0x50;
140 	sc->sci_dma_send = rp + 0x50;
141 	sc->sci_idata = rp + 0x60;
142 	sc->sci_trecv = rp + 0x60;
143 	sc->sci_iack = rp + 0x70;
144 	sc->sci_irecv = rp + 0x70;
145 	sc->sc_isr.isr_intr = empsc_intr;
146 	sc->sc_isr.isr_arg = sc;
147 	sc->sc_isr.isr_ipl = 2;
148 	add_isr(&sc->sc_isr);
149 
150 	scireset(sc);
151 
152 	/*
153 	 * Fill in the scsipi_adapter.
154 	 */
155 	memset(adapt, 0, sizeof(*adapt));
156 	adapt->adapt_dev = &sc->sc_dev;
157 	adapt->adapt_nchannels = 1;
158 	adapt->adapt_openings = 7;
159 	adapt->adapt_max_periph = 1;
160 	adapt->adapt_request = sci_scsipi_request;
161 	adapt->adapt_minphys = sci_minphys;
162 
163 	/*
164 	 * Fill in the scsipi_channel.
165 	 */
166 	memset(chan, 0, sizeof(*chan));
167 	chan->chan_adapter = adapt;
168 	chan->chan_bustype = &scsi_bustype;
169 	chan->chan_channel = 0;
170 	chan->chan_ntargets = 8;
171 	chan->chan_nluns = 8;
172 	chan->chan_id = 7;
173 
174 	/*
175 	 * attach all scsi units on us
176 	 */
177 	config_found(dp, chan, scsiprint);
178 }
179 
180 int
181 empsc_intr(void *arg)
182 {
183 	struct sci_softc *dev = arg;
184 	u_char stat;
185 
186 	if ((*dev->sci_csr & SCI_CSR_INT) == 0)
187 		return(0);
188 	stat = *dev->sci_iack;
189 	/* XXXX is: something is missing here, at least a: */
190 	return(1);
191 }
192