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 */
61 static int host_id = 7;
62 static int reconnect = 1;
63 static int parity = 1;
64 static int synchronous = 1;
65 static int reset_delay = 100;
66 static int ext_trans = 0;
67
68 module_param(host_id, int, 0);
69 module_param(reconnect, int, 0);
70 module_param(parity, int, 0);
71 module_param(synchronous, int, 0);
72 module_param(reset_delay, int, 0);
73 module_param(ext_trans, int, 0);
74
75 MODULE_LICENSE("Dual MPL/GPL");
76
77 /*====================================================================*/
78
79 typedef struct scsi_info_t {
80 struct pcmcia_device *p_dev;
81 struct Scsi_Host *host;
82 } scsi_info_t;
83
84 static void aha152x_release_cs(struct pcmcia_device *link);
85 static void aha152x_detach(struct pcmcia_device *p_dev);
86 static int aha152x_config_cs(struct pcmcia_device *link);
87
aha152x_probe(struct pcmcia_device * link)88 static 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
aha152x_detach(struct pcmcia_device * link)108 static 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
aha152x_config_check(struct pcmcia_device * p_dev,void * priv_data)120 static 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
aha152x_config_cs(struct pcmcia_device * link)140 static 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
183 failed:
184 aha152x_release_cs(link);
185 return -ENODEV;
186 }
187
aha152x_release_cs(struct pcmcia_device * link)188 static 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
aha152x_resume(struct pcmcia_device * link)196 static 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
205 static 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 };
213 MODULE_DEVICE_TABLE(pcmcia, aha152x_ids);
214
215 static 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
init_aha152x_cs(void)224 static int __init init_aha152x_cs(void)
225 {
226 return pcmcia_register_driver(&aha152x_cs_driver);
227 }
228
exit_aha152x_cs(void)229 static void __exit exit_aha152x_cs(void)
230 {
231 pcmcia_unregister_driver(&aha152x_cs_driver);
232 }
233
234 module_init(init_aha152x_cs);
235 module_exit(exit_aha152x_cs);
236
