dpt_eisa.c revision 45791 
1/*
2 *       Copyright (c) 1997 by Matthew N. Dodd <winter@jurai.net>
3 *       All Rights Reserved
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions, and the following disclaimer,
10 *    without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30/*
31 * Credits:  Based on and part of the DPT driver for FreeBSD written and
32 *           maintained by Simon Shapiro <shimon@simon-shapiro.org>
33 */
34
35/*
36 * $Id: dpt_eisa.c,v 1.4 1998/09/15 08:33:35 gibbs Exp $
37 */
38
39#include "eisa.h"
40#if NEISA > 0
41#include "opt_dpt.h"
42
43#include <sys/param.h>
44#include <sys/systm.h>
45#include <sys/malloc.h>
46#include <sys/buf.h>
47#include <sys/proc.h>
48#include <sys/kernel.h>
49#include <sys/module.h>
50#include <sys/bus.h>
51
52#include <machine/bus_pio.h>
53#include <machine/bus.h>
54#include <machine/resource.h>
55#include <sys/rman.h>
56
57#include <cam/scsi/scsi_all.h>
58
59#include <dev/dpt/dpt.h>
60
61#include <i386/eisa/eisaconf.h>
62#include <i386/eisa/dpt_eisa.h>
63
64#include <machine/clock.h>
65
66#include <vm/vm.h>
67#include <vm/vm_param.h>
68#include <vm/pmap.h>
69
70/* Function Prototypes */
71
72static const char	*dpt_eisa_match(eisa_id_t);
73
74static int
75dpt_eisa_probe(device_t dev)
76{
77	const char	    *desc;
78	u_int32_t	    io_base;
79	u_int		    intdef;
80	u_int		    irq;
81
82	desc = dpt_eisa_match(eisa_get_id(dev));
83	if (!desc)
84		return (ENXIO);
85	device_set_desc(dev, desc);
86
87	io_base = (eisa_get_slot(dev) * EISA_SLOT_SIZE)
88	    + DPT_EISA_SLOT_OFFSET;
89
90	eisa_add_iospace(dev, io_base, DPT_EISA_IOSIZE, RESVADDR_NONE);
91
92	intdef =  inb(DPT_EISA_INTDEF + io_base);
93
94	irq = intdef & DPT_EISA_INT_NUM_MASK;
95	switch (irq) {
96	case DPT_EISA_INT_NUM_11:
97	    irq = 11;
98	    break;
99	case DPT_EISA_INT_NUM_15:
100	    irq = 15;
101	    break;
102	case DPT_EISA_INT_NUM_14:
103	    irq = 14;
104	    break;
105	default:
106	    printf("dpt at slot %d: illegal irq setting %d\n",
107		   eisa_get_slot(dev), irq);
108	    irq = 0;
109	    break;
110	}
111	if (irq == 0)
112	    return ENXIO;
113
114	eisa_add_intr(dev, irq);
115
116	return 0;
117}
118
119static int
120dpt_eisa_attach(device_t dev)
121{
122	dpt_softc_t	*dpt;
123	struct resource *io = 0;
124	struct resource *irq = 0;
125        int		unit = device_get_unit(dev);
126	int		shared;
127	int		s;
128	int		rid;
129	void		*ih;
130
131	rid = 0;
132	io = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
133				0, ~0, 1, RF_ACTIVE);
134	if (!io) {
135		device_printf(dev, "No I/O space?!\n");
136		return ENOMEM;
137	}
138
139	shared = (inb(DPT_EISA_INTDEF + rman_get_start(io))
140		  & DPT_EISA_INT_LEVEL) ? RF_SHAREABLE : 0;
141
142	dpt = dpt_alloc(unit, rman_get_bustag(io),
143			rman_get_bushandle(io) + DPT_EISA_EATA_REG_OFFSET);
144	if (dpt == NULL)
145		goto bad;
146
147	/* Allocate a dmatag representing the capabilities of this attachment */
148	/* XXX Should be a child of the EISA bus dma tag */
149	if (bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/0, /*boundary*/0,
150			       /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
151			       /*highaddr*/BUS_SPACE_MAXADDR,
152			       /*filter*/NULL, /*filterarg*/NULL,
153			       /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
154			       /*nsegments*/BUS_SPACE_UNRESTRICTED,
155			       /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
156			       /*flags*/0, &dpt->parent_dmat) != 0) {
157		dpt_free(dpt);
158		goto bad;
159	}
160
161	rid = 0;
162	irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
163				 0, ~0, 1, shared | RF_ACTIVE);
164	if (!irq) {
165		device_printf(dev, "No irq?!\n");
166		goto bad;
167	}
168
169	s = splcam();
170	if (dpt_init(dpt) != 0) {
171		dpt_free(dpt);
172		goto bad;
173	}
174
175	/* Register with the XPT */
176	dpt_attach(dpt);
177	bus_setup_intr(dev, irq, dpt_intr, dpt, &ih);
178
179	splx(s);
180
181	return 0;
182
183 bad:
184	if (io)
185		bus_release_resource(dev, SYS_RES_IOPORT, 0, io);
186	if (irq)
187		bus_release_resource(dev, SYS_RES_IRQ, 0, irq);
188	return -1;
189}
190
191static const char	*
192dpt_eisa_match(type)
193	eisa_id_t	type;
194{
195	switch (type) {
196		case DPT_EISA_DPT2402 :
197			return ("DPT PM2012A/9X");
198			break;
199		case DPT_EISA_DPTA401 :
200			return ("DPT PM2012B/9X");
201			break;
202		case DPT_EISA_DPTA402 :
203			return ("DPT PM2012B2/9X");
204			break;
205		case DPT_EISA_DPTA410 :
206			return ("DPT PM2x22A/9X");
207			break;
208		case DPT_EISA_DPTA411 :
209			return ("DPT Spectre");
210			break;
211		case DPT_EISA_DPTA412 :
212			return ("DPT PM2021A/9X");
213			break;
214		case DPT_EISA_DPTA420 :
215			return ("DPT Smart Cache IV (PM2042)");
216			break;
217		case DPT_EISA_DPTA501 :
218			return ("DPT PM2012B1/9X");
219			break;
220		case DPT_EISA_DPTA502 :
221			return ("DPT PM2012Bx/9X");
222			break;
223		case DPT_EISA_DPTA701 :
224			return ("DPT PM2011B1/9X");
225			break;
226		case DPT_EISA_DPTBC01 :
227			return ("DPT PM3011/7X ESDI");
228			break;
229		case DPT_EISA_NEC8200 :
230			return ("NEC EATA SCSI");
231			break;
232		case DPT_EISA_ATT2408 :
233			return ("ATT EATA SCSI");
234			break;
235		default:
236			break;
237	}
238
239	return (NULL);
240}
241
242static device_method_t dpt_eisa_methods[] = {
243	/* Device interface */
244	DEVMETHOD(device_probe,		dpt_eisa_probe),
245	DEVMETHOD(device_attach,	dpt_eisa_attach),
246
247	{ 0, 0 }
248};
249
250static driver_t dpt_eisa_driver = {
251	"dpt",
252	dpt_eisa_methods,
253	DRIVER_TYPE_CAM,
254	1,			/* unused */
255};
256
257static devclass_t dpt_devclass;
258
259DRIVER_MODULE(dpt, eisa, dpt_eisa_driver, dpt_devclass, 0, 0);
260
261#endif /* NEISA > 0 */
262