1/*======================================================================
2
3    A driver for Adaptec AHA152X-compatible PCMCIA SCSI cards.
4
5    This driver supports the Adaptec AHA-1460, the New Media Bus
6    Toaster, and the New Media Toast & Jam.
7
8    aha152x_cs.c 1.54 2000/06/12 21:27:25
9
10    The contents of this file are subject to the Mozilla Public
11    License Version 1.1 (the "License"); you may not use this file
12    except in compliance with the License. You may obtain a copy of
13    the License at http://www.mozilla.org/MPL/
14
15    Software distributed under the License is distributed on an "AS
16    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
17    implied. See the License for the specific language governing
18    rights and limitations under the License.
19
20    The initial developer of the original code is David A. Hinds
21    <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
22    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
23
24    Alternatively, the contents of this file may be used under the
25    terms of the GNU General Public License version 2 (the "GPL"), in which
26    case the provisions of the GPL are applicable instead of the
27    above.  If you wish to allow the use of your version of this file
28    only under the terms of the GPL and not to allow others to use
29    your version of this file under the MPL, indicate your decision
30    by deleting the provisions above and replace them with the notice
31    and other provisions required by the GPL.  If you do not delete
32    the provisions above, a recipient may use your version of this
33    file under either the MPL or the GPL.
34
35======================================================================*/
36
37#include <linux/module.h>
38#include <linux/init.h>
39#include <linux/kernel.h>
40#include <linux/slab.h>
41#include <linux/string.h>
42#include <linux/ioport.h>
43#include <scsi/scsi.h>
44#include <linux/major.h>
45#include <linux/blkdev.h>
46#include <scsi/scsi_ioctl.h>
47
48#include "scsi.h"
49#include <scsi/scsi_host.h>
50#include "aha152x.h"
51
52#include <pcmcia/cistpl.h>
53#include <pcmcia/ds.h>
54
55
56/*====================================================================*/
57
58/* Parameters that can be set with 'insmod' */
59
60/* SCSI bus setup options */
61static int host_id = 7;
62static int reconnect = 1;
63static int parity = 1;
64static int synchronous = 1;
65static int reset_delay = 100;
66static int ext_trans = 0;
67
68module_param(host_id, int, 0);
69module_param(reconnect, int, 0);
70module_param(parity, int, 0);
71module_param(synchronous, int, 0);
72module_param(reset_delay, int, 0);
73module_param(ext_trans, int, 0);
74
75MODULE_LICENSE("Dual MPL/GPL");
76
77/*====================================================================*/
78
79typedef struct scsi_info_t {
80	struct pcmcia_device	*p_dev;
81    struct Scsi_Host	*host;
82} scsi_info_t;
83
84static void aha152x_release_cs(struct pcmcia_device *link);
85static void aha152x_detach(struct pcmcia_device *p_dev);
86static int aha152x_config_cs(struct pcmcia_device *link);
87
88static int aha152x_probe(struct pcmcia_device *link)
89{
90    scsi_info_t *info;
91
92    dev_dbg(&link->dev, "aha152x_attach()\n");
93
94    /* Create new SCSI device */
95    info = kzalloc(sizeof(*info), GFP_KERNEL);
96    if (!info) return -ENOMEM;
97    info->p_dev = link;
98    link->priv = info;
99
100    link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
101    link->config_regs = PRESENT_OPTION;
102
103    return aha152x_config_cs(link);
104} /* aha152x_attach */
105
106/*====================================================================*/
107
108static void aha152x_detach(struct pcmcia_device *link)
109{
110    dev_dbg(&link->dev, "aha152x_detach\n");
111
112    aha152x_release_cs(link);
113
114    /* Unlink device structure, free bits */
115    kfree(link->priv);
116} /* aha152x_detach */
117
118/*====================================================================*/
119
120static int aha152x_config_check(struct pcmcia_device *p_dev, void *priv_data)
121{
122	p_dev->io_lines = 10;
123
124	/* For New Media T&J, look for a SCSI window */
125	if ((p_dev->resource[0]->end < 0x20) &&
126		(p_dev->resource[1]->end >= 0x20))
127		p_dev->resource[0]->start = p_dev->resource[1]->start;
128
129	if (p_dev->resource[0]->start >= 0xffff)
130		return -EINVAL;
131
132	p_dev->resource[1]->start = p_dev->resource[1]->end = 0;
133	p_dev->resource[0]->end = 0x20;
134	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
135	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
136
137	return pcmcia_request_io(p_dev);
138}
139
140static int aha152x_config_cs(struct pcmcia_device *link)
141{
142    scsi_info_t *info = link->priv;
143    struct aha152x_setup s;
144    int ret;
145    struct Scsi_Host *host;
146
147    dev_dbg(&link->dev, "aha152x_config\n");
148
149    ret = pcmcia_loop_config(link, aha152x_config_check, NULL);
150    if (ret)
151	    goto failed;
152
153    if (!link->irq)
154	    goto failed;
155
156    ret = pcmcia_enable_device(link);
157    if (ret)
158	    goto failed;
159
160    /* Set configuration options for the aha152x driver */
161    memset(&s, 0, sizeof(s));
162    s.conf        = "PCMCIA setup";
163    s.io_port     = link->resource[0]->start;
164    s.irq         = link->irq;
165    s.scsiid      = host_id;
166    s.reconnect   = reconnect;
167    s.parity      = parity;
168    s.synchronous = synchronous;
169    s.delay       = reset_delay;
170    if (ext_trans)
171        s.ext_trans = ext_trans;
172
173    host = aha152x_probe_one(&s);
174    if (host == NULL) {
175	printk(KERN_INFO "aha152x_cs: no SCSI devices found\n");
176	goto failed;
177    }
178
179    info->host = host;
180
181    return 0;
182
183failed:
184    aha152x_release_cs(link);
185    return -ENODEV;
186}
187
188static void aha152x_release_cs(struct pcmcia_device *link)
189{
190	scsi_info_t *info = link->priv;
191
192	aha152x_release(info->host);
193	pcmcia_disable_device(link);
194}
195
196static int aha152x_resume(struct pcmcia_device *link)
197{
198	scsi_info_t *info = link->priv;
199
200	aha152x_host_reset_host(info->host);
201
202	return 0;
203}
204
205static const struct pcmcia_device_id aha152x_ids[] = {
206	PCMCIA_DEVICE_PROD_ID123("New Media", "SCSI", "Bus Toaster", 0xcdf7e4cc, 0x35f26476, 0xa8851d6e),
207	PCMCIA_DEVICE_PROD_ID123("NOTEWORTHY", "SCSI", "Bus Toaster", 0xad89c6e8, 0x35f26476, 0xa8851d6e),
208	PCMCIA_DEVICE_PROD_ID12("Adaptec, Inc.", "APA-1460 SCSI Host Adapter", 0x24ba9738, 0x3a3c3d20),
209	PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Multimedia Sound/SCSI", 0x085a850b, 0x80a6535c),
210	PCMCIA_DEVICE_PROD_ID12("NOTEWORTHY", "NWCOMB02 SCSI/AUDIO COMBO CARD", 0xad89c6e8, 0x5f9a615b),
211	PCMCIA_DEVICE_NULL,
212};
213MODULE_DEVICE_TABLE(pcmcia, aha152x_ids);
214
215static struct pcmcia_driver aha152x_cs_driver = {
216	.owner		= THIS_MODULE,
217	.name		= "aha152x_cs",
218	.probe		= aha152x_probe,
219	.remove		= aha152x_detach,
220	.id_table       = aha152x_ids,
221	.resume		= aha152x_resume,
222};
223
224static int __init init_aha152x_cs(void)
225{
226	return pcmcia_register_driver(&aha152x_cs_driver);
227}
228
229static void __exit exit_aha152x_cs(void)
230{
231	pcmcia_unregister_driver(&aha152x_cs_driver);
232}
233
234module_init(init_aha152x_cs);
235module_exit(exit_aha152x_cs);
236