1/*-
2 * FreeBSD, EISA product support functions
3 *
4 *
5 * Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice immediately at the beginning of the file, without modification,
13 *    this list of conditions, and the following disclaimer.
14 * 2. 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 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/ahc_eisa.c#13 $
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD$");
34
35#include <dev/aic7xxx/aic7xxx_osm.h>
36
37#include <dev/eisa/eisaconf.h>
38
39static int
40aic7770_probe(device_t dev)
41{
42	struct	 aic7770_identity *entry;
43	struct	 resource *regs;
44	uint32_t iobase;
45	bus_space_handle_t bsh;
46	bus_space_tag_t	tag;
47	u_int	 irq;
48	u_int	 intdef;
49	u_int	 hcntrl;
50	int	 shared;
51	int	 rid;
52	int	 error;
53
54	entry = aic7770_find_device(eisa_get_id(dev));
55	if (entry == NULL)
56		return (ENXIO);
57	device_set_desc(dev, entry->name);
58
59	iobase = (eisa_get_slot(dev) * EISA_SLOT_SIZE) + AHC_EISA_SLOT_OFFSET;
60
61	eisa_add_iospace(dev, iobase, AHC_EISA_IOSIZE, RESVADDR_NONE);
62
63	rid = 0;
64	regs = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
65	if (regs == NULL) {
66		device_printf(dev, "Unable to map I/O space?!\n");
67		return ENOMEM;
68	}
69
70	tag = rman_get_bustag(regs);
71	bsh = rman_get_bushandle(regs);
72	error = 0;
73
74	/* Pause the card preseving the IRQ type */
75	hcntrl = bus_space_read_1(tag, bsh, HCNTRL) & IRQMS;
76	bus_space_write_1(tag, bsh, HCNTRL, hcntrl | PAUSE);
77	while ((bus_space_read_1(tag, bsh, HCNTRL) & PAUSE) == 0)
78		;
79
80	/* Make sure we have a valid interrupt vector */
81	intdef = bus_space_read_1(tag, bsh, INTDEF);
82	shared = (intdef & EDGE_TRIG) ? EISA_TRIGGER_EDGE : EISA_TRIGGER_LEVEL;
83	irq = intdef & VECTOR;
84	switch (irq) {
85	case 9:
86	case 10:
87	case 11:
88	case 12:
89	case 14:
90	case 15:
91		break;
92	default:
93		printf("aic7770 at slot %d: illegal irq setting %d\n",
94		       eisa_get_slot(dev), intdef);
95		error = ENXIO;
96	}
97
98	if (error == 0)
99		eisa_add_intr(dev, irq, shared);
100
101	bus_release_resource(dev, SYS_RES_IOPORT, rid, regs);
102	return (error);
103}
104
105static int
106aic7770_attach(device_t dev)
107{
108	struct	 aic7770_identity *entry;
109	struct	 ahc_softc *ahc;
110	char	*name;
111	int	 error;
112
113	entry = aic7770_find_device(eisa_get_id(dev));
114	if (entry == NULL)
115		return (ENXIO);
116
117	/*
118	 * Allocate a softc for this card and
119	 * set it up for attachment by our
120	 * common detect routine.
121	 */
122	name = malloc(strlen(device_get_nameunit(dev)) + 1, M_DEVBUF, M_NOWAIT);
123	if (name == NULL)
124		return (ENOMEM);
125	strcpy(name, device_get_nameunit(dev));
126	ahc = ahc_alloc(dev, name);
127	if (ahc == NULL)
128		return (ENOMEM);
129
130	ahc_set_unit(ahc, device_get_unit(dev));
131
132	/* Allocate a dmatag for our SCB DMA maps */
133	error = aic_dma_tag_create(ahc, /*parent*/bus_get_dma_tag(dev),
134				   /*alignment*/1, /*boundary*/0,
135				   /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
136				   /*highaddr*/BUS_SPACE_MAXADDR,
137				   /*filter*/NULL, /*filterarg*/NULL,
138				   /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
139				   /*nsegments*/AHC_NSEG,
140				   /*maxsegsz*/AHC_MAXTRANSFER_SIZE,
141				   /*flags*/0,
142				   &ahc->parent_dmat);
143
144	if (error != 0) {
145		printf("ahc_eisa_attach: Could not allocate DMA tag "
146		       "- error %d\n", error);
147		ahc_free(ahc);
148		return (ENOMEM);
149	}
150	ahc->dev_softc = dev;
151	error = aic7770_config(ahc, entry, /*unused ioport arg*/0);
152	if (error != 0) {
153		ahc_free(ahc);
154		return (error);
155	}
156
157	ahc_attach(ahc);
158	return (0);
159}
160
161
162static device_method_t ahc_eisa_device_methods[] = {
163	/* Device interface */
164	DEVMETHOD(device_probe,		aic7770_probe),
165	DEVMETHOD(device_attach,	aic7770_attach),
166	DEVMETHOD(device_detach,	ahc_detach),
167	{ 0, 0 }
168};
169
170static driver_t ahc_eisa_driver = {
171	"ahc",
172	ahc_eisa_device_methods,
173	sizeof(struct ahc_softc)
174};
175
176DRIVER_MODULE(ahc_eisa, eisa, ahc_eisa_driver, ahc_devclass, 0, 0);
177MODULE_DEPEND(ahc_eisa, ahc, 1, 1, 1);
178MODULE_VERSION(ahc_eisa, 1);
179