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/cs_types.h>
53 #include <pcmcia/cs.h>
54 #include <pcmcia/cistpl.h>
55 #include <pcmcia/ds.h>
56
57 #ifdef PCMCIA_DEBUG
58 static int pc_debug = PCMCIA_DEBUG;
59 module_param(pc_debug, int, 0644);
60 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
61 static char *version =
62 "aha152x_cs.c 1.54 2000/06/12 21:27:25 (David Hinds)";
63 #else
64 #define DEBUG(n, args...)
65 #endif
66
67 /*====================================================================*/
68
69 /* Parameters that can be set with 'insmod' */
70
71 /* SCSI bus setup options */
72 static int host_id = 7;
73 static int reconnect = 1;
74 static int parity = 1;
75 static int synchronous = 1;
76 static int reset_delay = 100;
77 static int ext_trans = 0;
78
79 module_param(host_id, int, 0);
80 module_param(reconnect, int, 0);
81 module_param(parity, int, 0);
82 module_param(synchronous, int, 0);
83 module_param(reset_delay, int, 0);
84 module_param(ext_trans, int, 0);
85
86 MODULE_LICENSE("Dual MPL/GPL");
87
88 /*====================================================================*/
89
90 typedef struct scsi_info_t {
91 struct pcmcia_device *p_dev;
92 dev_node_t node;
93 struct Scsi_Host *host;
94 } scsi_info_t;
95
96 static void aha152x_release_cs(struct pcmcia_device *link);
97 static void aha152x_detach(struct pcmcia_device *p_dev);
98 static int aha152x_config_cs(struct pcmcia_device *link);
99
100 static struct pcmcia_device *dev_list;
101
102 static int aha152x_probe(struct pcmcia_device *link)
103 {
104 scsi_info_t *info;
105
106 DEBUG(0, "aha152x_attach()\n");
107
108 /* Create new SCSI device */
109 info = kzalloc(sizeof(*info), GFP_KERNEL);
110 if (!info) return -ENOMEM;
111 info->p_dev = link;
112 link->priv = info;
113
114 link->io.NumPorts1 = 0x20;
115 link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
116 link->io.IOAddrLines = 10;
117 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
118 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
119 link->conf.Attributes = CONF_ENABLE_IRQ;
120 link->conf.IntType = INT_MEMORY_AND_IO;
121 link->conf.Present = PRESENT_OPTION;
122
123 return aha152x_config_cs(link);
124 } /* aha152x_attach */
125
126 /*====================================================================*/
127
128 static void aha152x_detach(struct pcmcia_device *link)
129 {
130 DEBUG(0, "aha152x_detach(0x%p)\n", link);
131
132 aha152x_release_cs(link);
133
134 /* Unlink device structure, free bits */
135 kfree(link->priv);
136 } /* aha152x_detach */
137
138 /*====================================================================*/
139
140 #define CS_CHECK(fn, ret) \
141 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
142
143 static int aha152x_config_check(struct pcmcia_device *p_dev,
144 cistpl_cftable_entry_t *cfg,
145 cistpl_cftable_entry_t *dflt,
146 unsigned int vcc,
147 void *priv_data)
148 {
149 /* For New Media T&J, look for a SCSI window */
150 if (cfg->io.win[0].len >= 0x20)
151 p_dev->io.BasePort1 = cfg->io.win[0].base;
152 else if ((cfg->io.nwin > 1) &&
153 (cfg->io.win[1].len >= 0x20))
154 p_dev->io.BasePort1 = cfg->io.win[1].base;
155 if ((cfg->io.nwin > 0) &&
156 (p_dev->io.BasePort1 < 0xffff)) {
157 if (!pcmcia_request_io(p_dev, &p_dev->io))
158 return 0;
159 }
160 return -EINVAL;
161 }
162
163 static int aha152x_config_cs(struct pcmcia_device *link)
164 {
165 scsi_info_t *info = link->priv;
166 struct aha152x_setup s;
167 int last_ret, last_fn;
168 struct Scsi_Host *host;
169
170 DEBUG(0, "aha152x_config(0x%p)\n", link);
171
172 last_ret = pcmcia_loop_config(link, aha152x_config_check, NULL);
173 if (last_ret) {
174 cs_error(link, RequestIO, last_ret);
175 goto failed;
176 }
177
178 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
179 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
180
181 /* Set configuration options for the aha152x driver */
182 memset(&s, 0, sizeof(s));
183 s.conf = "PCMCIA setup";
184 s.io_port = link->io.BasePort1;
185 s.irq = link->irq.AssignedIRQ;
186 s.scsiid = host_id;
187 s.reconnect = reconnect;
188 s.parity = parity;
189 s.synchronous = synchronous;
190 s.delay = reset_delay;
191 if (ext_trans)
192 s.ext_trans = ext_trans;
193
194 host = aha152x_probe_one(&s);
195 if (host == NULL) {
196 printk(KERN_INFO "aha152x_cs: no SCSI devices found\n");
197 goto cs_failed;
198 }
199
200 sprintf(info->node.dev_name, "scsi%d", host->host_no);
201 link->dev_node = &info->node;
202 info->host = host;
203
204 return 0;
205
206 cs_failed:
207 cs_error(link, last_fn, last_ret);
208 failed:
209 aha152x_release_cs(link);
210 return -ENODEV;
211 }
212
213 static void aha152x_release_cs(struct pcmcia_device *link)
214 {
215 scsi_info_t *info = link->priv;
216
217 aha152x_release(info->host);
218 pcmcia_disable_device(link);
219 }
220
221 static int aha152x_resume(struct pcmcia_device *link)
222 {
223 scsi_info_t *info = link->priv;
224
225 aha152x_host_reset_host(info->host);
226
227 return 0;
228 }
229
230 static struct pcmcia_device_id aha152x_ids[] = {
231 PCMCIA_DEVICE_PROD_ID123("New Media", "SCSI", "Bus Toaster", 0xcdf7e4cc, 0x35f26476, 0xa8851d6e),
232 PCMCIA_DEVICE_PROD_ID123("NOTEWORTHY", "SCSI", "Bus Toaster", 0xad89c6e8, 0x35f26476, 0xa8851d6e),
233 PCMCIA_DEVICE_PROD_ID12("Adaptec, Inc.", "APA-1460 SCSI Host Adapter", 0x24ba9738, 0x3a3c3d20),
234 PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Multimedia Sound/SCSI", 0x085a850b, 0x80a6535c),
235 PCMCIA_DEVICE_PROD_ID12("NOTEWORTHY", "NWCOMB02 SCSI/AUDIO COMBO CARD", 0xad89c6e8, 0x5f9a615b),
236 PCMCIA_DEVICE_NULL,
237 };
238 MODULE_DEVICE_TABLE(pcmcia, aha152x_ids);
239
240 static struct pcmcia_driver aha152x_cs_driver = {
241 .owner = THIS_MODULE,
242 .drv = {
243 .name = "aha152x_cs",
244 },
245 .probe = aha152x_probe,
246 .remove = aha152x_detach,
247 .id_table = aha152x_ids,
248 .resume = aha152x_resume,
249 };
250
251 static int __init init_aha152x_cs(void)
252 {
253 return pcmcia_register_driver(&aha152x_cs_driver);
254 }
255
256 static void __exit exit_aha152x_cs(void)
257 {
258 pcmcia_unregister_driver(&aha152x_cs_driver);
259 BUG_ON(dev_list != NULL);
260 }
261
262 module_init(init_aha152x_cs);
263 module_exit(exit_aha152x_cs);
264
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