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_DESCRIPTION("Adaptec AHA152X-compatible PCMCIA SCSI card driver");
79 MODULE_LICENSE("Dual MPL/GPL");
80
81 /*====================================================================*/
82
83 typedef struct scsi_info_t {
84 struct pcmcia_device *p_dev;
85 struct Scsi_Host *host;
86 } scsi_info_t;
87
88 static void aha152x_release_cs(struct pcmcia_device *link);
89 static void aha152x_detach(struct pcmcia_device *p_dev);
90 static int aha152x_config_cs(struct pcmcia_device *link);
91
aha152x_probe(struct pcmcia_device * link)92 static 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
aha152x_detach(struct pcmcia_device * link)112 static 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
aha152x_config_check(struct pcmcia_device * p_dev,void * priv_data)124 static 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
aha152x_config_cs(struct pcmcia_device * link)144 static 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
187 failed:
188 aha152x_release_cs(link);
189 return -ENODEV;
190 }
191
aha152x_release_cs(struct pcmcia_device * link)192 static 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
aha152x_resume(struct pcmcia_device * link)200 static 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
209 static 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 };
217 MODULE_DEVICE_TABLE(pcmcia, aha152x_ids);
218
219 static 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 };
227 module_pcmcia_driver(aha152x_cs_driver);
228