1/*======================================================================
2
3    A driver for Future Domain-compatible PCMCIA SCSI cards
4
5    fdomain_cs.c 1.47 2001/10/13 00:08:52
6
7    The contents of this file are subject to the Mozilla Public
8    License Version 1.1 (the "License"); you may not use this file
9    except in compliance with the License. You may obtain a copy of
10    the License at http://www.mozilla.org/MPL/
11
12    Software distributed under the License is distributed on an "AS
13    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
14    implied. See the License for the specific language governing
15    rights and limitations under the License.
16
17    The initial developer of the original code is David A. Hinds
18    <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
19    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
20
21    Alternatively, the contents of this file may be used under the
22    terms of the GNU General Public License version 2 (the "GPL"), in
23    which case the provisions of the GPL are applicable instead of the
24    above.  If you wish to allow the use of your version of this file
25    only under the terms of the GPL and not to allow others to use
26    your version of this file under the MPL, indicate your decision
27    by deleting the provisions above and replace them with the notice
28    and other provisions required by the GPL.  If you do not delete
29    the provisions above, a recipient may use your version of this
30    file under either the MPL or the GPL.
31
32======================================================================*/
33
34#include <linux/module.h>
35#include <linux/init.h>
36#include <linux/kernel.h>
37#include <linux/slab.h>
38#include <linux/string.h>
39#include <linux/ioport.h>
40#include <scsi/scsi.h>
41#include <linux/major.h>
42#include <linux/blkdev.h>
43#include <scsi/scsi_ioctl.h>
44
45#include "scsi.h"
46#include <scsi/scsi_host.h>
47#include "fdomain.h"
48
49#include <pcmcia/cs_types.h>
50#include <pcmcia/cs.h>
51#include <pcmcia/cistpl.h>
52#include <pcmcia/ds.h>
53
54/*====================================================================*/
55
56/* Module parameters */
57
58MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
59MODULE_DESCRIPTION("Future Domain PCMCIA SCSI driver");
60MODULE_LICENSE("Dual MPL/GPL");
61
62#ifdef PCMCIA_DEBUG
63static int pc_debug = PCMCIA_DEBUG;
64module_param(pc_debug, int, 0);
65#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
66static char *version =
67"fdomain_cs.c 1.47 2001/10/13 00:08:52 (David Hinds)";
68#else
69#define DEBUG(n, args...)
70#endif
71
72/*====================================================================*/
73
74typedef struct scsi_info_t {
75	struct pcmcia_device	*p_dev;
76    dev_node_t		node;
77    struct Scsi_Host	*host;
78} scsi_info_t;
79
80
81static void fdomain_release(struct pcmcia_device *link);
82static void fdomain_detach(struct pcmcia_device *p_dev);
83static int fdomain_config(struct pcmcia_device *link);
84
85static int fdomain_probe(struct pcmcia_device *link)
86{
87	scsi_info_t *info;
88
89	DEBUG(0, "fdomain_attach()\n");
90
91	/* Create new SCSI device */
92	info = kzalloc(sizeof(*info), GFP_KERNEL);
93	if (!info)
94		return -ENOMEM;
95
96	info->p_dev = link;
97	link->priv = info;
98	link->io.NumPorts1 = 0x10;
99	link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
100	link->io.IOAddrLines = 10;
101	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
102	link->irq.IRQInfo1 = IRQ_LEVEL_ID;
103	link->conf.Attributes = CONF_ENABLE_IRQ;
104	link->conf.IntType = INT_MEMORY_AND_IO;
105	link->conf.Present = PRESENT_OPTION;
106
107	return fdomain_config(link);
108} /* fdomain_attach */
109
110/*====================================================================*/
111
112static void fdomain_detach(struct pcmcia_device *link)
113{
114	DEBUG(0, "fdomain_detach(0x%p)\n", link);
115
116	fdomain_release(link);
117
118	kfree(link->priv);
119} /* fdomain_detach */
120
121/*====================================================================*/
122
123#define CS_CHECK(fn, ret) \
124do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
125
126static int fdomain_config(struct pcmcia_device *link)
127{
128    scsi_info_t *info = link->priv;
129    tuple_t tuple;
130    cisparse_t parse;
131    int i, last_ret, last_fn;
132    u_char tuple_data[64];
133    char str[16];
134    struct Scsi_Host *host;
135
136    DEBUG(0, "fdomain_config(0x%p)\n", link);
137
138    tuple.TupleData = tuple_data;
139    tuple.TupleDataMax = 64;
140    tuple.TupleOffset = 0;
141
142    tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
143    CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
144    while (1) {
145	if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
146		pcmcia_parse_tuple(link, &tuple, &parse) != 0)
147	    goto next_entry;
148	link->conf.ConfigIndex = parse.cftable_entry.index;
149	link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
150	i = pcmcia_request_io(link, &link->io);
151	if (i == CS_SUCCESS) break;
152    next_entry:
153	CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
154    }
155
156    CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
157    CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
158
159    /* A bad hack... */
160    release_region(link->io.BasePort1, link->io.NumPorts1);
161
162    /* Set configuration options for the fdomain driver */
163    sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
164    fdomain_setup(str);
165
166    host = __fdomain_16x0_detect(&fdomain_driver_template);
167    if (!host) {
168        printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
169	goto cs_failed;
170    }
171
172    if (scsi_add_host(host, NULL))
173	    goto cs_failed;
174    scsi_scan_host(host);
175
176    sprintf(info->node.dev_name, "scsi%d", host->host_no);
177    link->dev_node = &info->node;
178    info->host = host;
179
180    return 0;
181
182cs_failed:
183    cs_error(link, last_fn, last_ret);
184    fdomain_release(link);
185    return -ENODEV;
186} /* fdomain_config */
187
188/*====================================================================*/
189
190static void fdomain_release(struct pcmcia_device *link)
191{
192	scsi_info_t *info = link->priv;
193
194	DEBUG(0, "fdomain_release(0x%p)\n", link);
195
196	scsi_remove_host(info->host);
197	pcmcia_disable_device(link);
198	scsi_unregister(info->host);
199}
200
201/*====================================================================*/
202
203static int fdomain_resume(struct pcmcia_device *link)
204{
205	fdomain_16x0_bus_reset(NULL);
206
207	return 0;
208}
209
210static struct pcmcia_device_id fdomain_ids[] = {
211	PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
212	PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
213	PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
214	PCMCIA_DEVICE_NULL,
215};
216MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
217
218static struct pcmcia_driver fdomain_cs_driver = {
219	.owner		= THIS_MODULE,
220	.drv		= {
221		.name	= "fdomain_cs",
222	},
223	.probe		= fdomain_probe,
224	.remove		= fdomain_detach,
225	.id_table       = fdomain_ids,
226	.resume		= fdomain_resume,
227};
228
229static int __init init_fdomain_cs(void)
230{
231	return pcmcia_register_driver(&fdomain_cs_driver);
232}
233
234static void __exit exit_fdomain_cs(void)
235{
236	pcmcia_unregister_driver(&fdomain_cs_driver);
237}
238
239module_init(init_fdomain_cs);
240module_exit(exit_fdomain_cs);
241