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
aha152x_probe(struct pcmcia_device * link)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
aha152x_detach(struct pcmcia_device * link)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
aha152x_config_check(struct pcmcia_device * p_dev,void * priv_data)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
aha152x_config_cs(struct pcmcia_device * link)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
aha152x_release_cs(struct pcmcia_device * link)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
aha152x_resume(struct pcmcia_device * link)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