tmc18c30_isa.c revision 92739 
1/*	$FreeBSD: head/sys/dev/stg/tmc18c30_isa.c 92739 2002-03-20 02:08:01Z alfred $	*/
2/*	$NecBSD: tmc18c30_pisa.c,v 1.22 1998/11/26 01:59:21 honda Exp $	*/
3/*	$NetBSD$	*/
4
5/*
6 * [Ported for FreeBSD]
7 *  Copyright (c) 2000
8 *      Noriaki Mitsunaga, Mitsuru Iwasaki and Takanori Watanabe.
9 *      All rights reserved.
10 * [NetBSD for NEC PC-98 series]
11 *  Copyright (c) 1996, 1997, 1998
12 *	NetBSD/pc98 porting staff. All rights reserved.
13 *  Copyright (c) 1996, 1997, 1998
14 *	Naofumi HONDA. All rights reserved.
15 *  Copyright (c) 1996, 1997, 1998
16 *	Kouichi Matsuda. All rights reserved.
17 *
18 *  Redistribution and use in source and binary forms, with or without
19 *  modification, are permitted provided that the following conditions
20 *  are met:
21 *  1. Redistributions of source code must retain the above copyright
22 *     notice, this list of conditions and the following disclaimer.
23 *  2. Redistributions in binary form must reproduce the above copyright
24 *     notice, this list of conditions and the following disclaimer in the
25 *     documentation and/or other materials provided with the distribution.
26 *  3. The name of the author may not be used to endorse or promote products
27 *     derived from this software without specific prior written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
30 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
31 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
32 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
38 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39 * POSSIBILITY OF SUCH DAMAGE.
40 */
41
42#include <sys/param.h>
43#include <sys/systm.h>
44#include <sys/kernel.h>
45#include <sys/module.h>
46#include <sys/bus.h>
47#include <sys/disklabel.h>
48#if defined(__FreeBSD__) && __FreeBSD_version >= 500001
49#include <sys/bio.h>
50#endif
51#include <sys/buf.h>
52#include <sys/queue.h>
53#include <sys/malloc.h>
54#include <sys/errno.h>
55
56#include <vm/vm.h>
57
58#include <machine/bus_pio.h>
59#include <machine/bus.h>
60#include <machine/resource.h>
61#include <sys/rman.h>
62
63#include <isa/isavar.h>
64
65#include <machine/dvcfg.h>
66
67#include <sys/device_port.h>
68
69#include <cam/scsi/scsi_low.h>
70#include <isa/isa_common.h>
71#include <cam/scsi/scsi_low_pisa.h>
72
73#include <dev/stg/tmc18c30reg.h>
74#include <dev/stg/tmc18c30var.h>
75
76#define	STG_HOSTID	7
77
78#include	<sys/kernel.h>
79#include	<sys/module.h>
80
81static	int	stgprobe(device_t devi);
82static	int	stgattach(device_t devi);
83
84static	void	stg_isa_unload	(device_t);
85
86static void
87stg_isa_intr(void * arg)
88{
89	stgintr(arg);
90}
91
92static void
93stg_release_resource(device_t dev)
94{
95	struct stg_softc	*sc = device_get_softc(dev);
96
97	if (sc->stg_intrhand) {
98		bus_teardown_intr(dev, sc->irq_res, sc->stg_intrhand);
99	}
100
101	if (sc->port_res) {
102		bus_release_resource(dev, SYS_RES_IOPORT,
103				     sc->port_rid, sc->port_res);
104	}
105
106	if (sc->irq_res) {
107		bus_release_resource(dev, SYS_RES_IRQ,
108				     sc->irq_rid, sc->irq_res);
109	}
110
111	if (sc->mem_res) {
112		bus_release_resource(dev, SYS_RES_MEMORY,
113				     sc->mem_rid, sc->mem_res);
114	}
115}
116
117static int
118stg_alloc_resource(device_t dev)
119{
120	struct stg_softc	*sc = device_get_softc(dev);
121	u_long			maddr, msize;
122	int			error;
123
124	sc->port_rid = 0;
125	sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->port_rid,
126					  0, ~0, STGIOSZ, RF_ACTIVE);
127	if (sc->port_res == NULL) {
128		stg_release_resource(dev);
129		return(ENOMEM);
130	}
131
132	sc->irq_rid = 0;
133	sc->irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irq_rid,
134					 0, ~0, 1, RF_ACTIVE);
135	if (sc->irq_res == NULL) {
136		stg_release_resource(dev);
137		return(ENOMEM);
138	}
139
140	error = bus_get_resource(dev, SYS_RES_MEMORY, 0, &maddr, &msize);
141	if (error) {
142		return(0);      /* XXX */
143	}
144
145	/* no need to allocate memory if not configured */
146	if (maddr == 0 || msize == 0) {
147		return(0);
148	}
149
150	sc->mem_rid = 0;
151	sc->mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->mem_rid,
152					 0, ~0, 1, RF_ACTIVE);
153	if (sc->mem_res == NULL) {
154		stg_release_resource(dev);
155		return(ENOMEM);
156	}
157
158	return(0);
159}
160
161static int
162stg_isa_probe(device_t dev)
163{
164	struct stg_softc	*sc = device_get_softc(dev);
165	int			error;
166
167	bzero(sc, sizeof(struct stg_softc));
168
169	error = stg_alloc_resource(dev);
170	if (error) {
171		return(error);
172	}
173
174	if (stgprobe(dev) == 0) {
175		stg_release_resource(dev);
176		return(ENXIO);
177	}
178
179	stg_release_resource(dev);
180
181	return(0);
182}
183
184static int
185stg_isa_attach(device_t dev)
186{
187	struct stg_softc	*sc = device_get_softc(dev);
188	int			error;
189
190	error = stg_alloc_resource(dev);
191	if (error) {
192		return(error);
193	}
194
195	error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_CAM | INTR_ENTROPY,
196			       stg_isa_intr, (void *)sc, &sc->stg_intrhand);
197	if (error) {
198		stg_release_resource(dev);
199		return(error);
200	}
201
202	if (stgattach(dev) == 0) {
203		stg_release_resource(dev);
204		return(ENXIO);
205	}
206
207	return(0);
208}
209
210static	void
211stg_isa_detach(device_t dev)
212{
213	stg_isa_unload(dev);
214	stg_release_resource(dev);
215}
216
217static device_method_t stg_isa_methods[] = {
218	/* Device interface */
219	DEVMETHOD(device_probe,		stg_isa_probe),
220	DEVMETHOD(device_attach,	stg_isa_attach),
221	DEVMETHOD(device_detach,	stg_isa_detach),
222
223	{ 0, 0 }
224};
225
226static driver_t stg_isa_driver = {
227	"stg",
228	stg_isa_methods,
229	sizeof(struct stg_softc),
230};
231
232static devclass_t stg_devclass;
233
234DRIVER_MODULE(stg, isa, stg_isa_driver, stg_devclass, 0, 0);
235
236static	void
237stg_isa_unload(device_t devi)
238{
239	struct stg_softc *sc = device_get_softc(devi);
240	intrmask_t s;
241
242	printf("%s: unload\n",sc->sc_sclow.sl_xname);
243	s = splcam();
244	scsi_low_deactivate((struct scsi_low_softc *)sc);
245	scsi_low_dettach(&sc->sc_sclow);
246	splx(s);
247}
248
249static	int
250stgprobe(device_t devi)
251{
252	int rv;
253	struct stg_softc *sc = device_get_softc(devi);
254
255	rv = stgprobesubr(rman_get_bustag(sc->port_res),
256			  rman_get_bushandle(sc->port_res),
257			  device_get_flags(devi));
258
259	return rv;
260}
261
262static	int
263stgattach(device_t devi)
264{
265	struct stg_softc *sc;
266	struct scsi_low_softc *slp;
267	u_int32_t flags = device_get_flags(devi);
268	u_int iobase = bus_get_resource_start(devi, SYS_RES_IOPORT, 0);
269	intrmask_t s;
270	char	dvname[16];
271
272	strcpy(dvname,"stg");
273
274
275	if (iobase == 0)
276	{
277		printf("%s: no ioaddr is given\n", dvname);
278		return (0);
279	}
280
281	sc = device_get_softc(devi);
282	if (sc == NULL) {
283		return(0);
284	}
285
286	slp = &sc->sc_sclow;
287	slp->sl_dev = devi;
288	sc->sc_iot = rman_get_bustag(sc->port_res);
289	sc->sc_ioh = rman_get_bushandle(sc->port_res);
290
291	slp->sl_hostid = STG_HOSTID;
292	slp->sl_cfgflags = flags;
293
294	s = splcam();
295	stgattachsubr(sc);
296	splx(s);
297
298	return(STGIOSZ);
299}
300