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	ahc->dev = dev;
95	error = aic7770_config(ahc, aic7770_ident_table + edev->id.driver_data,
96			       eisaBase);
97	if (error != 0) {
98		ahc->bsh.ioport = 0;
99		ahc_free(ahc);
100		return error < 0 ? error : -error;
101	}
102
103 	dev_set_drvdata(dev, ahc);
104
105	error = ahc_linux_register_host(ahc, &aic7xxx_driver_template);
106	return (error);
107}
108
109static int
110aic7770_remove(struct device *dev)
111{
112	struct ahc_softc *ahc = dev_get_drvdata(dev);
113	u_long s;
114
115	if (ahc->platform_data && ahc->platform_data->host)
116			scsi_remove_host(ahc->platform_data->host);
117
118	ahc_lock(ahc, &s);
119	ahc_intr_enable(ahc, FALSE);
120	ahc_unlock(ahc, &s);
121
122	ahc_free(ahc);
123	return 0;
124}
125
126static struct eisa_device_id aic7770_ids[] = {
127	{ "ADP7771", 0 }, /* AHA 274x */
128	{ "ADP7756", 1 }, /* AHA 284x BIOS enabled */
129	{ "ADP7757", 2 }, /* AHA 284x BIOS disabled */
130	{ "ADP7782", 3 }, /* AHA 274x Olivetti OEM */
131	{ "ADP7783", 4 }, /* AHA 274x Olivetti OEM (Differential) */
132	{ "ADP7770", 5 }, /* AIC7770 generic */
133	{ "" }
134};
135MODULE_DEVICE_TABLE(eisa, aic7770_ids);
136
137static struct eisa_driver aic7770_driver = {
138	.id_table	= aic7770_ids,
139	.driver = {
140		.name   = "aic7xxx",
141		.probe  = aic7770_probe,
142		.remove = aic7770_remove,
143	}
144};
145
146int
147ahc_linux_eisa_init(void)
148{
149	return eisa_driver_register(&aic7770_driver);
150}
151
152void
153ahc_linux_eisa_exit(void)
154{
155	eisa_driver_unregister(&aic7770_driver);
156}
157