1/*-
2 * [Ported for FreeBSD]
3 *  Copyright (c) 2000
4 *      Noriaki Mitsunaga, Mitsuru Iwasaki and Takanori Watanabe.
5 *      All rights reserved.
6 * [NetBSD for NEC PC-98 series]
7 *  Copyright (c) 1996, 1997, 1998
8 *	NetBSD/pc98 porting staff. All rights reserved.
9 *  Copyright (c) 1996, 1997, 1998
10 *	Naofumi HONDA. All rights reserved.
11 *  Copyright (c) 1996, 1997, 1998
12 *	Kouichi Matsuda. All rights reserved.
13 *
14 *  Redistribution and use in source and binary forms, with or without
15 *  modification, are permitted provided that the following conditions
16 *  are met:
17 *  1. Redistributions of source code must retain the above copyright
18 *     notice, this list of conditions and the following disclaimer.
19 *  2. Redistributions in binary form must reproduce the above copyright
20 *     notice, this list of conditions and the following disclaimer in the
21 *     documentation and/or other materials provided with the distribution.
22 *  3. The name of the author may not be used to endorse or promote products
23 *     derived from this software without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
26 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
27 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
28 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
29 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
33 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
34 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 *
37 */
38
39#include <sys/cdefs.h>
40__FBSDID("$FreeBSD$");
41
42#include <sys/param.h>
43#include <sys/systm.h>
44#include <sys/kernel.h>
45#include <sys/socket.h>
46
47#include <sys/module.h>
48#include <sys/bus.h>
49
50#include <machine/bus.h>
51#include <machine/resource.h>
52#include <sys/rman.h>
53
54#include <cam/scsi/scsi_low.h>
55
56#include <dev/stg/tmc18c30reg.h>
57#include <dev/stg/tmc18c30var.h>
58#include <dev/stg/tmc18c30.h>
59
60#define	STG_HOSTID	7
61
62devclass_t stg_devclass;
63
64int
65stg_alloc_resource(device_t dev)
66{
67	struct stg_softc *	sc = device_get_softc(dev);
68	u_long			maddr, msize;
69	int			error;
70
71	sc->port_res = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
72					      &sc->port_rid, RF_ACTIVE);
73	if (sc->port_res == NULL) {
74		stg_release_resource(dev);
75		return(ENOMEM);
76	}
77
78	sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
79					     RF_ACTIVE);
80	if (sc->irq_res == NULL) {
81		stg_release_resource(dev);
82		return(ENOMEM);
83	}
84	error = bus_get_resource(dev, SYS_RES_MEMORY, 0, &maddr, &msize);
85	if (error) {
86		return(0);      /* XXX */
87	}
88
89	/* no need to allocate memory if not configured */
90	if (maddr == 0 || msize == 0) {
91		return(0);
92	}
93
94	sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
95					     RF_ACTIVE);
96	if (sc->mem_res == NULL) {
97		stg_release_resource(dev);
98		return(ENOMEM);
99	}
100
101	return(0);
102}
103
104void
105stg_release_resource(device_t dev)
106{
107	struct stg_softc	*sc = device_get_softc(dev);
108
109	if (sc->stg_intrhand)
110		bus_teardown_intr(dev, sc->irq_res, sc->stg_intrhand);
111	if (sc->port_res)
112		bus_release_resource(dev, SYS_RES_IOPORT,
113				     sc->port_rid, sc->port_res);
114	if (sc->irq_res)
115		bus_release_resource(dev, SYS_RES_IRQ,
116				     sc->irq_rid, sc->irq_res);
117	if (sc->mem_res)
118		bus_release_resource(dev, SYS_RES_MEMORY,
119				     sc->mem_rid, sc->mem_res);
120	return;
121}
122
123int
124stg_probe(device_t dev)
125{
126	int rv;
127	struct stg_softc *sc = device_get_softc(dev);
128
129	rv = stgprobesubr(rman_get_bustag(sc->port_res),
130			  rman_get_bushandle(sc->port_res),
131			  device_get_flags(dev));
132
133	return rv;
134}
135
136int
137stg_attach(device_t dev)
138{
139	struct stg_softc *sc;
140	struct scsi_low_softc *slp;
141	u_int32_t flags = device_get_flags(dev);
142	intrmask_t s;
143	char	dvname[16];
144
145	sc = device_get_softc(dev);
146
147	strcpy(dvname,"stg");
148
149	slp = &sc->sc_sclow;
150	slp->sl_dev = dev;
151	sc->sc_iot = rman_get_bustag(sc->port_res);
152	sc->sc_ioh = rman_get_bushandle(sc->port_res);
153
154	slp->sl_hostid = STG_HOSTID;
155	slp->sl_cfgflags = flags;
156
157	s = splcam();
158	stgattachsubr(sc);
159	splx(s);
160
161	return(STGIOSZ);
162}
163
164int
165stg_detach (device_t dev)
166{
167	struct stg_softc *sc = device_get_softc(dev);
168	intrmask_t s;
169
170	s = splcam();
171	scsi_low_deactivate((struct scsi_low_softc *)sc);
172	scsi_low_dettach(&sc->sc_sclow);
173	splx(s);
174	stg_release_resource(dev);
175	return (0);
176}
177
178void
179stg_intr (void *arg)
180{
181	stgintr(arg);
182	return;
183}
184