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 */
64 static int host_id = 7;
65 static int reconnect = 1;
66 static int parity = 1;
67 static int synchronous = 1;
68 static int reset_delay = 100;
69 static int ext_trans = 0;
70 
71 module_param(host_id, int, 0);
72 module_param(reconnect, int, 0);
73 module_param(parity, int, 0);
74 module_param(synchronous, int, 0);
75 module_param(reset_delay, int, 0);
76 module_param(ext_trans, int, 0);
77 
78 MODULE_LICENSE("Dual MPL/GPL");
79 
80 /*====================================================================*/
81 
82 typedef struct scsi_info_t {
83 	struct pcmcia_device	*p_dev;
84     struct Scsi_Host	*host;
85 } scsi_info_t;
86 
87 static void aha152x_release_cs(struct pcmcia_device *link);
88 static void aha152x_detach(struct pcmcia_device *p_dev);
89 static int aha152x_config_cs(struct pcmcia_device *link);
90 
91 static int aha152x_probe(struct pcmcia_device *link)
92 {
93     scsi_info_t *info;
94 
95     dev_dbg(&link->dev, "aha152x_attach()\n");
96 
97     /* Create new SCSI device */
98     info = kzalloc(sizeof(*info), GFP_KERNEL);
99     if (!info) return -ENOMEM;
100     info->p_dev = link;
101     link->priv = info;
102 
103     link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
104     link->config_regs = PRESENT_OPTION;
105 
106     return aha152x_config_cs(link);
107 } /* aha152x_attach */
108 
109 /*====================================================================*/
110 
111 static void aha152x_detach(struct pcmcia_device *link)
112 {
113     dev_dbg(&link->dev, "aha152x_detach\n");
114 
115     aha152x_release_cs(link);
116 
117     /* Unlink device structure, free bits */
118     kfree(link->priv);
119 } /* aha152x_detach */
120 
121 /*====================================================================*/
122 
123 static int aha152x_config_check(struct pcmcia_device *p_dev, void *priv_data)
124 {
125 	p_dev->io_lines = 10;
126 
127 	/* For New Media T&J, look for a SCSI window */
128 	if ((p_dev->resource[0]->end < 0x20) &&
129 		(p_dev->resource[1]->end >= 0x20))
130 		p_dev->resource[0]->start = p_dev->resource[1]->start;
131 
132 	if (p_dev->resource[0]->start >= 0xffff)
133 		return -EINVAL;
134 
135 	p_dev->resource[1]->start = p_dev->resource[1]->end = 0;
136 	p_dev->resource[0]->end = 0x20;
137 	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
138 	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
139 
140 	return pcmcia_request_io(p_dev);
141 }
142 
143 static int aha152x_config_cs(struct pcmcia_device *link)
144 {
145     scsi_info_t *info = link->priv;
146     struct aha152x_setup s;
147     int ret;
148     struct Scsi_Host *host;
149 
150     dev_dbg(&link->dev, "aha152x_config\n");
151 
152     ret = pcmcia_loop_config(link, aha152x_config_check, NULL);
153     if (ret)
154 	    goto failed;
155 
156     if (!link->irq)
157 	    goto failed;
158 
159     ret = pcmcia_enable_device(link);
160     if (ret)
161 	    goto failed;
162 
163     /* Set configuration options for the aha152x driver */
164     memset(&s, 0, sizeof(s));
165     s.conf        = "PCMCIA setup";
166     s.io_port     = link->resource[0]->start;
167     s.irq         = link->irq;
168     s.scsiid      = host_id;
169     s.reconnect   = reconnect;
170     s.parity      = parity;
171     s.synchronous = synchronous;
172     s.delay       = reset_delay;
173     if (ext_trans)
174         s.ext_trans = ext_trans;
175 
176     host = aha152x_probe_one(&s);
177     if (host == NULL) {
178 	printk(KERN_INFO "aha152x_cs: no SCSI devices found\n");
179 	goto failed;
180     }
181 
182     info->host = host;
183 
184     return 0;
185 
186 failed:
187     aha152x_release_cs(link);
188     return -ENODEV;
189 }
190 
191 static void aha152x_release_cs(struct pcmcia_device *link)
192 {
193 	scsi_info_t *info = link->priv;
194 
195 	aha152x_release(info->host);
196 	pcmcia_disable_device(link);
197 }
198 
199 static int aha152x_resume(struct pcmcia_device *link)
200 {
201 	scsi_info_t *info = link->priv;
202 
203 	aha152x_host_reset_host(info->host);
204 
205 	return 0;
206 }
207 
208 static const struct pcmcia_device_id aha152x_ids[] = {
209 	PCMCIA_DEVICE_PROD_ID123("New Media", "SCSI", "Bus Toaster", 0xcdf7e4cc, 0x35f26476, 0xa8851d6e),
210 	PCMCIA_DEVICE_PROD_ID123("NOTEWORTHY", "SCSI", "Bus Toaster", 0xad89c6e8, 0x35f26476, 0xa8851d6e),
211 	PCMCIA_DEVICE_PROD_ID12("Adaptec, Inc.", "APA-1460 SCSI Host Adapter", 0x24ba9738, 0x3a3c3d20),
212 	PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Multimedia Sound/SCSI", 0x085a850b, 0x80a6535c),
213 	PCMCIA_DEVICE_PROD_ID12("NOTEWORTHY", "NWCOMB02 SCSI/AUDIO COMBO CARD", 0xad89c6e8, 0x5f9a615b),
214 	PCMCIA_DEVICE_NULL,
215 };
216 MODULE_DEVICE_TABLE(pcmcia, aha152x_ids);
217 
218 static struct pcmcia_driver aha152x_cs_driver = {
219 	.owner		= THIS_MODULE,
220 	.name		= "aha152x_cs",
221 	.probe		= aha152x_probe,
222 	.remove		= aha152x_detach,
223 	.id_table       = aha152x_ids,
224 	.resume		= aha152x_resume,
225 };
226 module_pcmcia_driver(aha152x_cs_driver);
227