dpt_eisa.c revision 39234 
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 1.3 1998/08/09 02:22:34 jkh 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
50#include <machine/bus_pio.h>
51#include <machine/bus.h>
52
53#include <cam/scsi/scsi_all.h>
54
55#include <dev/dpt/dpt.h>
56
57#include <i386/eisa/eisaconf.h>
58#include <i386/eisa/dpt_eisa.h>
59
60#include <machine/clock.h>
61
62#include <vm/vm.h>
63#include <vm/vm_param.h>
64#include <vm/pmap.h>
65
66/* Function Prototypes */
67
68static int dpt_eisa_probe(void);
69static int dpt_eisa_attach(struct eisa_device*);
70
71static const char	*dpt_eisa_match(eisa_id_t);
72
73static struct eisa_driver dpt_eisa_driver =
74{
75	"dpt",
76	dpt_eisa_probe,
77	dpt_eisa_attach,
78	NULL,
79	&dpt_unit
80};
81
82DATA_SET (eisadriver_set, dpt_eisa_driver);
83
84static int
85dpt_eisa_probe(void)
86{
87	struct eisa_device *e_dev = NULL;
88        int		    count;
89	u_int32_t	    io_base;
90	u_int		    intdef;
91	u_int		    irq;
92
93	e_dev = NULL;
94	count = 0;
95	while ((e_dev = eisa_match_dev(e_dev, dpt_eisa_match))) {
96		io_base = (e_dev->ioconf.slot * EISA_SLOT_SIZE)
97			 + DPT_EISA_SLOT_OFFSET;
98
99		eisa_add_iospace(e_dev, io_base,
100				 DPT_EISA_IOSIZE, RESVADDR_NONE);
101
102		intdef =  inb(DPT_EISA_INTDEF + io_base);
103
104		irq = intdef & DPT_EISA_INT_NUM_MASK;
105		switch (irq) {
106		case DPT_EISA_INT_NUM_11:
107			irq = 11;
108			break;
109		case DPT_EISA_INT_NUM_15:
110			irq = 15;
111			break;
112		case DPT_EISA_INT_NUM_14:
113			irq = 14;
114			break;
115		default:
116			printf("dpt at slot %d: illegal irq setting %d\n",
117			       e_dev->ioconf.slot, irq);
118			irq = 0;
119			break;
120		}
121		if (irq == 0)
122			continue;
123
124		eisa_add_intr(e_dev, irq);
125		eisa_registerdev(e_dev, &dpt_eisa_driver);
126		count++;
127	}
128	return count;
129}
130
131int
132dpt_eisa_attach(e_dev)
133	struct eisa_device	*e_dev;
134{
135	dpt_softc_t	*dpt;
136	resvaddr_t	*io_space;
137        int		unit = e_dev->unit;
138        int		irq;
139	int		shared;
140	int		s;
141
142	if (TAILQ_FIRST(&e_dev->ioconf.irqs) == NULL) {
143		printf("dpt%d: Can't retrieve irq from EISA config struct.\n",
144			unit);
145		return -1;
146	}
147
148	irq = TAILQ_FIRST(&e_dev->ioconf.irqs)->irq_no;
149	io_space = e_dev->ioconf.ioaddrs.lh_first;
150
151	if (!io_space) {
152		printf("dpt%d: No I/O space?!\n", unit);
153		return -1;
154	}
155
156	shared = inb(DPT_EISA_INTDEF + io_space->addr) & DPT_EISA_INT_LEVEL;
157
158	dpt = dpt_alloc(unit, I386_BUS_SPACE_IO,
159			io_space->addr + DPT_EISA_EATA_REG_OFFSET);
160	if (dpt == NULL)
161		return -1;
162
163	/* Allocate a dmatag representing the capabilities of this attachment */
164	/* XXX Should be a child of the EISA bus dma tag */
165	if (bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/0, /*boundary*/0,
166			       /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
167			       /*highaddr*/BUS_SPACE_MAXADDR,
168			       /*filter*/NULL, /*filterarg*/NULL,
169			       /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
170			       /*nsegments*/BUS_SPACE_UNRESTRICTED,
171			       /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
172			       /*flags*/0, &dpt->parent_dmat) != 0) {
173		dpt_free(dpt);
174		return -1;
175	}
176
177	if (eisa_reg_intr(e_dev, irq, dpt_intr, (void *)dpt, &cam_imask,
178			  shared)) {
179                printf("dpt%d: eisa_reg_intr() failed.\n", unit);
180		dpt_free(dpt);
181		return -1;
182        }
183        eisa_reg_end(e_dev);
184
185        /* Enable our interrupt handler. */
186        if (eisa_enable_intr(e_dev, irq)) {
187#ifdef DPT_DEBUG_ERROR
188                printf("dpt%d: eisa_enable_intr() failed.\n", unit);
189#endif
190                free(dpt, M_DEVBUF);
191                eisa_release_intr(e_dev, irq, dpt_intr);
192                return -1;
193        }
194	/*
195	 * Enable our interrupt handler.
196	 */
197	if (eisa_enable_intr(e_dev, irq)) {
198		dpt_free(dpt);
199		eisa_release_intr(e_dev, irq, dpt_intr);
200		return -1;
201	}
202
203	s = splcam();
204	if (dpt_init(dpt) != 0) {
205		dpt_free(dpt);
206		return -1;
207	}
208
209	/* Register with the XPT */
210	dpt_attach(dpt);
211	splx(s);
212
213	return 0;
214}
215
216static const char	*
217dpt_eisa_match(type)
218	eisa_id_t	type;
219{
220	switch (type) {
221		case DPT_EISA_DPT2402 :
222			return ("DPT PM2012A/9X");
223			break;
224		case DPT_EISA_DPTA401 :
225			return ("DPT PM2012B/9X");
226			break;
227		case DPT_EISA_DPTA402 :
228			return ("DPT PM2012B2/9X");
229			break;
230		case DPT_EISA_DPTA410 :
231			return ("DPT PM2x22A/9X");
232			break;
233		case DPT_EISA_DPTA411 :
234			return ("DPT Spectre");
235			break;
236		case DPT_EISA_DPTA412 :
237			return ("DPT PM2021A/9X");
238			break;
239		case DPT_EISA_DPTA420 :
240			return ("DPT Smart Cache IV (PM2042)");
241			break;
242		case DPT_EISA_DPTA501 :
243			return ("DPT PM2012B1/9X");
244			break;
245		case DPT_EISA_DPTA502 :
246			return ("DPT PM2012Bx/9X");
247			break;
248		case DPT_EISA_DPTA701 :
249			return ("DPT PM2011B1/9X");
250			break;
251		case DPT_EISA_DPTBC01 :
252			return ("DPT PM3011/7X ESDI");
253			break;
254		case DPT_EISA_NEC8200 :
255			return ("NEC EATA SCSI");
256			break;
257		case DPT_EISA_ATT2408 :
258			return ("ATT EATA SCSI");
259			break;
260		default:
261			break;
262	}
263
264	return (NULL);
265}
266
267#endif /* NEISA > 0 */
268