1/*
2 * Linux driver attachment glue for aic7770 based controllers.
3 *
4 * Copyright (c) 2000-2003 Adaptec Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions, and the following disclaimer,
12 *    without modification.
13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14 *    substantially similar to the "NO WARRANTY" disclaimer below
15 *    ("Disclaimer") and any redistribution must be conditioned upon
16 *    including a substantially similar Disclaimer requirement for further
17 *    binary redistribution.
18 * 3. Neither the names of the above-listed copyright holders nor the names
19 *    of any contributors may be used to endorse or promote products derived
20 *    from this software without specific prior written permission.
21 *
22 * Alternatively, this software may be distributed under the terms of the
23 * GNU General Public License ("GPL") version 2 as published by the Free
24 * Software Foundation.
25 *
26 * NO WARRANTY
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
30 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
31 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
35 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
36 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGES.
38 *
39 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7770_osm.c#14 $
40 */
41
42#include "aic7xxx_osm.h"
43
44#include <linux/device.h>
45#include <linux/eisa.h>
46
47int
48aic7770_map_registers(struct ahc_softc *ahc, u_int port)
49{
50	/*
51	 * Lock out other contenders for our i/o space.
52	 */
53	if (!request_region(port, AHC_EISA_IOSIZE, "aic7xxx"))
54		return (ENOMEM);
55	ahc->tag = BUS_SPACE_PIO;
56	ahc->bsh.ioport = port;
57	return (0);
58}
59
60int
61aic7770_map_int(struct ahc_softc *ahc, u_int irq)
62{
63	int error;
64	int shared;
65
66	shared = 0;
67	if ((ahc->flags & AHC_EDGE_INTERRUPT) == 0)
68		shared = IRQF_SHARED;
69
70	error = request_irq(irq, ahc_linux_isr, shared, "aic7xxx", ahc);
71	if (error == 0)
72		ahc->platform_data->irq = irq;
73
74	return (-error);
75}
76
77static int
78aic7770_probe(struct device *dev)
79{
80	struct eisa_device *edev = to_eisa_device(dev);
81	u_int eisaBase = edev->base_addr+AHC_EISA_SLOT_OFFSET;
82	struct	ahc_softc *ahc;
83	char	buf[80];
84	char   *name;
85	int	error;
86
87	sprintf(buf, "ahc_eisa:%d", eisaBase >> 12);
88	name = kstrdup(buf, GFP_ATOMIC);
89	if (name == NULL)
90		return (ENOMEM);
91	ahc = ahc_alloc(&aic7xxx_driver_template, name);
92	if (ahc == NULL)
93		return (ENOMEM);
94	error = aic7770_config(ahc, aic7770_ident_table + edev->id.driver_data,
95			       eisaBase);
96	if (error != 0) {
97		ahc->bsh.ioport = 0;
98		ahc_free(ahc);
99		return (error);
100	}
101
102 	dev_set_drvdata(dev, ahc);
103
104	error = ahc_linux_register_host(ahc, &aic7xxx_driver_template);
105	return (error);
106}
107
108static int
109aic7770_remove(struct device *dev)
110{
111	struct ahc_softc *ahc = dev_get_drvdata(dev);
112	u_long s;
113
114	if (ahc->platform_data && ahc->platform_data->host)
115			scsi_remove_host(ahc->platform_data->host);
116
117	ahc_lock(ahc, &s);
118	ahc_intr_enable(ahc, FALSE);
119	ahc_unlock(ahc, &s);
120
121	ahc_free(ahc);
122	return 0;
123}
124
125static struct eisa_device_id aic7770_ids[] = {
126	{ "ADP7771", 0 }, /* AHA 274x */
127	{ "ADP7756", 1 }, /* AHA 284x BIOS enabled */
128	{ "ADP7757", 2 }, /* AHA 284x BIOS disabled */
129	{ "ADP7782", 3 }, /* AHA 274x Olivetti OEM */
130	{ "ADP7783", 4 }, /* AHA 274x Olivetti OEM (Differential) */
131	{ "ADP7770", 5 }, /* AIC7770 generic */
132	{ "" }
133};
134MODULE_DEVICE_TABLE(eisa, aic7770_ids);
135
136static struct eisa_driver aic7770_driver = {
137	.id_table	= aic7770_ids,
138	.driver = {
139		.name   = "aic7xxx",
140		.probe  = aic7770_probe,
141		.remove = aic7770_remove,
142	}
143};
144
145int
146ahc_linux_eisa_init(void)
147{
148	return eisa_driver_register(&aic7770_driver);
149}
150
151void
152ahc_linux_eisa_exit(void)
153{
154	eisa_driver_unregister(&aic7770_driver);
155}
156