1 /*======================================================================
2
3 A driver for Future Domain-compatible PCMCIA SCSI cards
4
5 fdomain_cs.c 1.47 2001/10/13 00:08:52
6
7 The contents of this file are subject to the Mozilla Public
8 License Version 1.1 (the "License"); you may not use this file
9 except in compliance with the License. You may obtain a copy of
10 the License at http://www.mozilla.org/MPL/
11
12 Software distributed under the License is distributed on an "AS
13 IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
14 implied. See the License for the specific language governing
15 rights and limitations under the License.
16
17 The initial developer of the original code is David A. Hinds
18 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
19 are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
20
21 Alternatively, the contents of this file may be used under the
22 terms of the GNU General Public License version 2 (the "GPL"), in
23 which case the provisions of the GPL are applicable instead of the
24 above. If you wish to allow the use of your version of this file
25 only under the terms of the GPL and not to allow others to use
26 your version of this file under the MPL, indicate your decision
27 by deleting the provisions above and replace them with the notice
28 and other provisions required by the GPL. If you do not delete
29 the provisions above, a recipient may use your version of this
30 file under either the MPL or the GPL.
31
32 ======================================================================*/
33
34 #include <linux/module.h>
35 #include <linux/init.h>
36 #include <linux/kernel.h>
37 #include <linux/slab.h>
38 #include <linux/string.h>
39 #include <linux/ioport.h>
40 #include <scsi/scsi.h>
41 #include <linux/major.h>
42 #include <linux/blkdev.h>
43 #include <scsi/scsi_ioctl.h>
44
45 #include "scsi.h"
46 #include <scsi/scsi_host.h>
47 #include "fdomain.h"
48
49 #include <pcmcia/cs_types.h>
50 #include <pcmcia/cs.h>
51 #include <pcmcia/cistpl.h>
52 #include <pcmcia/ds.h>
53
54 /*====================================================================*/
55
56 /* Module parameters */
57
58 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
59 MODULE_DESCRIPTION("Future Domain PCMCIA SCSI driver");
60 MODULE_LICENSE("Dual MPL/GPL");
61
62 #ifdef PCMCIA_DEBUG
63 static int pc_debug = PCMCIA_DEBUG;
64 module_param(pc_debug, int, 0);
65 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
66 static char *version =
67 "fdomain_cs.c 1.47 2001/10/13 00:08:52 (David Hinds)";
68 #else
69 #define DEBUG(n, args...)
70 #endif
71
72 /*====================================================================*/
73
74 typedef struct scsi_info_t {
75 struct pcmcia_device *p_dev;
76 dev_node_t node;
77 struct Scsi_Host *host;
78 } scsi_info_t;
79
80
81 static void fdomain_release(struct pcmcia_device *link);
82 static void fdomain_detach(struct pcmcia_device *p_dev);
83 static int fdomain_config(struct pcmcia_device *link);
84
fdomain_probe(struct pcmcia_device * link)85 static int fdomain_probe(struct pcmcia_device *link)
86 {
87 scsi_info_t *info;
88
89 DEBUG(0, "fdomain_attach()\n");
90
91 /* Create new SCSI device */
92 info = kzalloc(sizeof(*info), GFP_KERNEL);
93 if (!info)
94 return -ENOMEM;
95
96 info->p_dev = link;
97 link->priv = info;
98 link->io.NumPorts1 = 0x10;
99 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
100 link->io.IOAddrLines = 10;
101 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
102 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
103 link->conf.Attributes = CONF_ENABLE_IRQ;
104 link->conf.IntType = INT_MEMORY_AND_IO;
105 link->conf.Present = PRESENT_OPTION;
106
107 return fdomain_config(link);
108 } /* fdomain_attach */
109
110 /*====================================================================*/
111
fdomain_detach(struct pcmcia_device * link)112 static void fdomain_detach(struct pcmcia_device *link)
113 {
114 DEBUG(0, "fdomain_detach(0x%p)\n", link);
115
116 fdomain_release(link);
117
118 kfree(link->priv);
119 } /* fdomain_detach */
120
121 /*====================================================================*/
122
123 #define CS_CHECK(fn, ret) \
124 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
125
fdomain_config_check(struct pcmcia_device * p_dev,cistpl_cftable_entry_t * cfg,cistpl_cftable_entry_t * dflt,unsigned int vcc,void * priv_data)126 static int fdomain_config_check(struct pcmcia_device *p_dev,
127 cistpl_cftable_entry_t *cfg,
128 cistpl_cftable_entry_t *dflt,
129 unsigned int vcc,
130 void *priv_data)
131 {
132 p_dev->io.BasePort1 = cfg->io.win[0].base;
133 return pcmcia_request_io(p_dev, &p_dev->io);
134 }
135
136
fdomain_config(struct pcmcia_device * link)137 static int fdomain_config(struct pcmcia_device *link)
138 {
139 scsi_info_t *info = link->priv;
140 int last_ret, last_fn;
141 char str[22];
142 struct Scsi_Host *host;
143
144 DEBUG(0, "fdomain_config(0x%p)\n", link);
145
146 last_ret = pcmcia_loop_config(link, fdomain_config_check, NULL);
147 if (last_ret) {
148 cs_error(link, RequestIO, last_ret);
149 goto failed;
150 }
151
152 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
153 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
154
155 /* A bad hack... */
156 release_region(link->io.BasePort1, link->io.NumPorts1);
157
158 /* Set configuration options for the fdomain driver */
159 sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
160 fdomain_setup(str);
161
162 host = __fdomain_16x0_detect(&fdomain_driver_template);
163 if (!host) {
164 printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
165 goto cs_failed;
166 }
167
168 if (scsi_add_host(host, NULL))
169 goto cs_failed;
170 scsi_scan_host(host);
171
172 sprintf(info->node.dev_name, "scsi%d", host->host_no);
173 link->dev_node = &info->node;
174 info->host = host;
175
176 return 0;
177
178 cs_failed:
179 cs_error(link, last_fn, last_ret);
180 failed:
181 fdomain_release(link);
182 return -ENODEV;
183 } /* fdomain_config */
184
185 /*====================================================================*/
186
fdomain_release(struct pcmcia_device * link)187 static void fdomain_release(struct pcmcia_device *link)
188 {
189 scsi_info_t *info = link->priv;
190
191 DEBUG(0, "fdomain_release(0x%p)\n", link);
192
193 scsi_remove_host(info->host);
194 pcmcia_disable_device(link);
195 scsi_unregister(info->host);
196 }
197
198 /*====================================================================*/
199
fdomain_resume(struct pcmcia_device * link)200 static int fdomain_resume(struct pcmcia_device *link)
201 {
202 fdomain_16x0_bus_reset(NULL);
203
204 return 0;
205 }
206
207 static struct pcmcia_device_id fdomain_ids[] = {
208 PCMCIA_DEVICE_PROD_ID12("IBM Corp.", "SCSI PCMCIA Card", 0xe3736c88, 0x859cad20),
209 PCMCIA_DEVICE_PROD_ID1("SCSI PCMCIA Adapter Card", 0x8dacb57e),
210 PCMCIA_DEVICE_PROD_ID12(" SIMPLE TECHNOLOGY Corporation", "SCSI PCMCIA Credit Card Controller", 0x182bdafe, 0xc80d106f),
211 PCMCIA_DEVICE_NULL,
212 };
213 MODULE_DEVICE_TABLE(pcmcia, fdomain_ids);
214
215 static struct pcmcia_driver fdomain_cs_driver = {
216 .owner = THIS_MODULE,
217 .drv = {
218 .name = "fdomain_cs",
219 },
220 .probe = fdomain_probe,
221 .remove = fdomain_detach,
222 .id_table = fdomain_ids,
223 .resume = fdomain_resume,
224 };
225
init_fdomain_cs(void)226 static int __init init_fdomain_cs(void)
227 {
228 return pcmcia_register_driver(&fdomain_cs_driver);
229 }
230
exit_fdomain_cs(void)231 static void __exit exit_fdomain_cs(void)
232 {
233 pcmcia_unregister_driver(&fdomain_cs_driver);
234 }
235
236 module_init(init_fdomain_cs);
237 module_exit(exit_fdomain_cs);
238