/drivers/scsi/pcmcia/fdomain_stub.c

  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/*====================================================================*/
 63
 64typedef struct scsi_info_t {
 65	struct pcmcia_device	*p_dev;
 66    dev_node_t		node;
 67    struct Scsi_Host	*host;
 68} scsi_info_t;
 69
 70
 71static void fdomain_release(struct pcmcia_device *link);
 72static void fdomain_detach(struct pcmcia_device *p_dev);
 73static int fdomain_config(struct pcmcia_device *link);
 74
 75static int fdomain_probe(struct pcmcia_device *link)
 76{
 77	scsi_info_t *info;
 78
 79	dev_dbg(&link->dev, "fdomain_attach()\n");
 80
 81	/* Create new SCSI device */
 82	info = kzalloc(sizeof(*info), GFP_KERNEL);
 83	if (!info)
 84		return -ENOMEM;
 85
 86	info->p_dev = link;
 87	link->priv = info;
 88	link->io.NumPorts1 = 0x10;
 89	link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
 90	link->io.IOAddrLines = 10;
 91	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
 92	link->conf.Attributes = CONF_ENABLE_IRQ;
 93	link->conf.IntType = INT_MEMORY_AND_IO;
 94	link->conf.Present = PRESENT_OPTION;
 95
 96	return fdomain_config(link);
 97} /* fdomain_attach */
 98
 99/*====================================================================*/
100
101static void fdomain_detach(struct pcmcia_device *link)
102{
103	dev_dbg(&link->dev, "fdomain_detach\n");
104
105	fdomain_release(link);
106
107	kfree(link->priv);
108} /* fdomain_detach */
109
110/*====================================================================*/
111
112static int fdomain_config_check(struct pcmcia_device *p_dev,
113				cistpl_cftable_entry_t *cfg,
114				cistpl_cftable_entry_t *dflt,
115				unsigned int vcc,
116				void *priv_data)
117{
118	p_dev->io.BasePort1 = cfg->io.win[0].base;
119	return pcmcia_request_io(p_dev, &p_dev->io);
120}
121
122
123static int fdomain_config(struct pcmcia_device *link)
124{
125    scsi_info_t *info = link->priv;
126    int ret;
127    char str[22];
128    struct Scsi_Host *host;
129
130    dev_dbg(&link->dev, "fdomain_config\n");
131
132    ret = pcmcia_loop_config(link, fdomain_config_check, NULL);
133    if (ret)
134	    goto failed;
135
136    ret = pcmcia_request_irq(link, &link->irq);
137    if (ret)
138	    goto failed;
139    ret = pcmcia_request_configuration(link, &link->conf);
140    if (ret)
141	    goto failed;
142
143    /* A bad hack... */
144    release_region(link->io.BasePort1, link->io.NumPorts1);
145
146    /* Set configuration options for the fdomain driver */
147    sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
148    fdomain_setup(str);
149
150    host = __fdomain_16x0_detect(&fdomain_driver_template);
151    if (!host) {
152        printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
153	goto failed;
154    }
155
156    if (scsi_add_host(host, NULL))
157	    goto failed;
158    scsi_scan_host(host);
159
160    sprintf(info->node.dev_name, "scsi%d", host->host_no);
161    link->dev_node = &info->node;
162    info->host = host;
163
164    return 0;
165
166failed:
167    fdomain_release(link);
168    return -ENODEV;
169} /* fdomain_config */
170
171/*====================================================================*/
172
173static void fdomain_release(struct pcmcia_device *link)
174{
175	scsi_info_t *info = link->priv;
176
177	dev_dbg(&link->dev, "fdomain_release\n");
178
179	scsi_remove_host(info->host);
180	pcmcia_disable_device(link);
181	scsi_unregister(info->host);
182}
183
184/*====================================================================*/
185
186static int fdomain_resume(struct pcmcia_device *link)
187{
188	fdomain_16x0_bus_reset(NULL);
189
190	return 0;
191}
192
193static struct pcmcia_device_id fdomain_ids[] = {
194	PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
195	PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
196	PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
197	PCMCIA_DEVICE_NULL,
198};
199MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
200
201static struct pcmcia_driver fdomain_cs_driver = {
202	.owner		= THIS_MODULE,
203	.drv		= {
204		.name	= "fdomain_cs",
205	},
206	.probe		= fdomain_probe,
207	.remove		= fdomain_detach,
208	.id_table       = fdomain_ids,
209	.resume		= fdomain_resume,
210};
211
212static int __init init_fdomain_cs(void)
213{
214	return pcmcia_register_driver(&fdomain_cs_driver);
215}
216
217static void __exit exit_fdomain_cs(void)
218{
219	pcmcia_unregister_driver(&fdomain_cs_driver);
220}
221
222module_init(init_fdomain_cs);
223module_exit(exit_fdomain_cs);