aha152x_stub.c

  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 <linux/major.h>
 44#include <linux/blkdev.h>
 45
 46#include <scsi/scsi.h>
 47#include <scsi/scsi_cmnd.h>
 48#include <scsi/scsi_device.h>
 49#include <scsi/scsi_eh.h>
 50#include <scsi/scsi_host.h>
 51#include <scsi/scsi_ioctl.h>
 52#include <scsi/scsi_tcq.h>
 53#include "aha152x.h"
 54
 55#include <pcmcia/cistpl.h>
 56#include <pcmcia/ds.h>
 57
 58
 59/*====================================================================*/
 60
 61/* Parameters that can be set with 'insmod' */
 62
 63/* SCSI bus setup options */
 64static int host_id = 7;
 65static int reconnect = 1;
 66static int parity = 1;
 67static int synchronous = 1;
 68static int reset_delay = 100;
 69static int ext_trans = 0;
 70
 71module_param(host_id, int, 0);
 72module_param(reconnect, int, 0);
 73module_param(parity, int, 0);
 74module_param(synchronous, int, 0);
 75module_param(reset_delay, int, 0);
 76module_param(ext_trans, int, 0);
 77
 78MODULE_DESCRIPTION("Adaptec AHA152X-compatible PCMCIA SCSI card driver");
 79MODULE_LICENSE("Dual MPL/GPL");
 80
 81/*====================================================================*/
 82
 83typedef struct scsi_info_t {
 84	struct pcmcia_device	*p_dev;
 85    struct Scsi_Host	*host;
 86} scsi_info_t;
 87
 88static void aha152x_release_cs(struct pcmcia_device *link);
 89static void aha152x_detach(struct pcmcia_device *p_dev);
 90static int aha152x_config_cs(struct pcmcia_device *link);
 91
 92static int aha152x_probe(struct pcmcia_device *link)
 93{
 94    scsi_info_t *info;
 95
 96    dev_dbg(&link->dev, "aha152x_attach()\n");
 97
 98    /* Create new SCSI device */
 99    info = kzalloc(sizeof(*info), GFP_KERNEL);
100    if (!info) return -ENOMEM;
101    info->p_dev = link;
102    link->priv = info;
103
104    link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
105    link->config_regs = PRESENT_OPTION;
106
107    return aha152x_config_cs(link);
108} /* aha152x_attach */
109
110/*====================================================================*/
111
112static void aha152x_detach(struct pcmcia_device *link)
113{
114    dev_dbg(&link->dev, "aha152x_detach\n");
115
116    aha152x_release_cs(link);
117
118    /* Unlink device structure, free bits */
119    kfree(link->priv);
120} /* aha152x_detach */
121
122/*====================================================================*/
123
124static int aha152x_config_check(struct pcmcia_device *p_dev, void *priv_data)
125{
126	p_dev->io_lines = 10;
127
128	/* For New Media T&J, look for a SCSI window */
129	if ((p_dev->resource[0]->end < 0x20) &&
130		(p_dev->resource[1]->end >= 0x20))
131		p_dev->resource[0]->start = p_dev->resource[1]->start;
132
133	if (p_dev->resource[0]->start >= 0xffff)
134		return -EINVAL;
135
136	p_dev->resource[1]->start = p_dev->resource[1]->end = 0;
137	p_dev->resource[0]->end = 0x20;
138	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
139	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
140
141	return pcmcia_request_io(p_dev);
142}
143
144static int aha152x_config_cs(struct pcmcia_device *link)
145{
146    scsi_info_t *info = link->priv;
147    struct aha152x_setup s;
148    int ret;
149    struct Scsi_Host *host;
150
151    dev_dbg(&link->dev, "aha152x_config\n");
152
153    ret = pcmcia_loop_config(link, aha152x_config_check, NULL);
154    if (ret)
155	    goto failed;
156
157    if (!link->irq)
158	    goto failed;
159
160    ret = pcmcia_enable_device(link);
161    if (ret)
162	    goto failed;
163    
164    /* Set configuration options for the aha152x driver */
165    memset(&s, 0, sizeof(s));
166    s.conf        = "PCMCIA setup";
167    s.io_port     = link->resource[0]->start;
168    s.irq         = link->irq;
169    s.scsiid      = host_id;
170    s.reconnect   = reconnect;
171    s.parity      = parity;
172    s.synchronous = synchronous;
173    s.delay       = reset_delay;
174    if (ext_trans)
175        s.ext_trans = ext_trans;
176
177    host = aha152x_probe_one(&s);
178    if (host == NULL) {
179	printk(KERN_INFO "aha152x_cs: no SCSI devices found\n");
180	goto failed;
181    }
182
183    info->host = host;
184
185    return 0;
186
187failed:
188    aha152x_release_cs(link);
189    return -ENODEV;
190}
191
192static void aha152x_release_cs(struct pcmcia_device *link)
193{
194	scsi_info_t *info = link->priv;
195
196	aha152x_release(info->host);
197	pcmcia_disable_device(link);
198}
199
200static int aha152x_resume(struct pcmcia_device *link)
201{
202	scsi_info_t *info = link->priv;
203
204	aha152x_host_reset_host(info->host);
205
206	return 0;
207}
208
209static const struct pcmcia_device_id aha152x_ids[] = {
210	PCMCIA_DEVICE_PROD_ID123("New Media", "SCSI", "Bus Toaster", 0xcdf7e4cc, 0x35f26476, 0xa8851d6e),
211	PCMCIA_DEVICE_PROD_ID123("NOTEWORTHY", "SCSI", "Bus Toaster", 0xad89c6e8, 0x35f26476, 0xa8851d6e),
212	PCMCIA_DEVICE_PROD_ID12("Adaptec, Inc.", "APA-1460 SCSI Host Adapter", 0x24ba9738, 0x3a3c3d20),
213	PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Multimedia Sound/SCSI", 0x085a850b, 0x80a6535c),
214	PCMCIA_DEVICE_PROD_ID12("NOTEWORTHY", "NWCOMB02 SCSI/AUDIO COMBO CARD", 0xad89c6e8, 0x5f9a615b),
215	PCMCIA_DEVICE_NULL,
216};
217MODULE_DEVICE_TABLE(pcmcia, aha152x_ids);
218
219static struct pcmcia_driver aha152x_cs_driver = {
220	.owner		= THIS_MODULE,
221	.name		= "aha152x_cs",
222	.probe		= aha152x_probe,
223	.remove		= aha152x_detach,
224	.id_table       = aha152x_ids,
225	.resume		= aha152x_resume,
226};
227module_pcmcia_driver(aha152x_cs_driver);