summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/aic7xxx/aic7770_osm.c
blob: 0cb8ef64b5ce794ae720b73ecdc8849faa14421d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
/*
 * Linux driver attachment glue for aic7770 based controllers.
 *
 * Copyright (c) 2000-2003 Adaptec Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7770_osm.c#14 $
 */

#include "aic7xxx_osm.h"

#include <linux/device.h>
#include <linux/eisa.h>

int
aic7770_map_registers(struct ahc_softc *ahc, u_int port)
{
	/*
	 * Lock out other contenders for our i/o space.
	 */
	if (!request_region(port, AHC_EISA_IOSIZE, "aic7xxx"))
		return (ENOMEM);
	ahc->tag = BUS_SPACE_PIO;
	ahc->bsh.ioport = port;
	return (0);
}

int
aic7770_map_int(struct ahc_softc *ahc, u_int irq)
{
	int error;
	int shared;

	shared = 0;
	if ((ahc->flags & AHC_EDGE_INTERRUPT) == 0)
		shared = IRQF_SHARED;

	error = request_irq(irq, ahc_linux_isr, shared, "aic7xxx", ahc);
	if (error == 0)
		ahc->platform_data->irq = irq;
	
	return (-error);
}

static int
aic7770_probe(struct device *dev)
{
	struct eisa_device *edev = to_eisa_device(dev);
	u_int eisaBase = edev->base_addr+AHC_EISA_SLOT_OFFSET;
	struct	ahc_softc *ahc;
	char	buf[80];
	char   *name;
	int	error;

	sprintf(buf, "ahc_eisa:%d", eisaBase >> 12);
	name = kmalloc(strlen(buf) + 1, GFP_ATOMIC);
	if (name == NULL)
		return (ENOMEM);
	strcpy(name, buf);
	ahc = ahc_alloc(&aic7xxx_driver_template, name);
	if (ahc == NULL)
		return (ENOMEM);
	error = aic7770_config(ahc, aic7770_ident_table + edev->id.driver_data,
			       eisaBase);
	if (error != 0) {
		ahc->bsh.ioport = 0;
		ahc_free(ahc);
		return (error);
	}

 	dev_set_drvdata(dev, ahc);

	error = ahc_linux_register_host(ahc, &aic7xxx_driver_template);
	return (error);
}

static int
aic7770_remove(struct device *dev)
{
	struct ahc_softc *ahc = dev_get_drvdata(dev);
	u_long s;

	if (ahc->platform_data && ahc->platform_data->host)
			scsi_remove_host(ahc->platform_data->host);

	ahc_lock(ahc, &s);
	ahc_intr_enable(ahc, FALSE);
	ahc_unlock(ahc, &s);

	ahc_free(ahc);
	return 0;
}
 
static struct eisa_device_id aic7770_ids[] = {
	{ "ADP7771", 0 }, /* AHA 274x */
	{ "ADP7756", 1 }, /* AHA 284x BIOS enabled */
	{ "ADP7757", 2 }, /* AHA 284x BIOS disabled */
	{ "ADP7782", 3 }, /* AHA 274x Olivetti OEM */
	{ "ADP7783", 4 }, /* AHA 274x Olivetti OEM (Differential) */
	{ "ADP7770", 5 }, /* AIC7770 generic */
	{ "" }
};
MODULE_DEVICE_TABLE(eisa, aic7770_ids);

static struct eisa_driver aic7770_driver = {
	.id_table	= aic7770_ids,
	.driver = {
		.name   = "aic7xxx",
		.probe  = aic7770_probe,
		.remove = aic7770_remove,
	}
};
  
int
ahc_linux_eisa_init(void)
{
	return eisa_driver_register(&aic7770_driver);
}
  
void
ahc_linux_eisa_exit(void)
{
	eisa_driver_unregister(&aic7770_driver);
}
OpenPOWER on IntegriCloud