summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/pcmcia/aha152x_stub.c
blob: 3dc6957bad102037938905f0f804c7c1a7616abf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
/*======================================================================

    A driver for Adaptec AHA152X-compatible PCMCIA SCSI cards.

    This driver supports the Adaptec AHA-1460, the New Media Bus
    Toaster, and the New Media Toast & Jam.
    
    aha152x_cs.c 1.54 2000/06/12 21:27:25

    The contents of this file are subject to the Mozilla Public
    License Version 1.1 (the "License"); you may not use this file
    except in compliance with the License. You may obtain a copy of
    the License at http://www.mozilla.org/MPL/

    Software distributed under the License is distributed on an "AS
    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
    implied. See the License for the specific language governing
    rights and limitations under the License.

    The initial developer of the original code is David A. Hinds
    <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.

    Alternatively, the contents of this file may be used under the
    terms of the GNU General Public License version 2 (the "GPL"), in which
    case the provisions of the GPL are applicable instead of the
    above.  If you wish to allow the use of your version of this file
    only under the terms of the GPL and not to allow others to use
    your version of this file under the MPL, indicate your decision
    by deleting the provisions above and replace them with the notice
    and other provisions required by the GPL.  If you do not delete
    the provisions above, a recipient may use your version of this
    file under either the MPL or the GPL.
    
======================================================================*/

#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/ioport.h>
#include <scsi/scsi.h>
#include <linux/major.h>
#include <linux/blkdev.h>
#include <scsi/scsi_ioctl.h>

#include "scsi.h"
#include <scsi/scsi_host.h>
#include "aha152x.h"

#include <pcmcia/version.h>
#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/ds.h>

#ifdef PCMCIA_DEBUG
static int pc_debug = PCMCIA_DEBUG;
module_param(pc_debug, int, 0644);
#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
static char *version =
"aha152x_cs.c 1.54 2000/06/12 21:27:25 (David Hinds)";
#else
#define DEBUG(n, args...)
#endif

/*====================================================================*/

/* Parameters that can be set with 'insmod' */

/* SCSI bus setup options */
static int host_id = 7;
static int reconnect = 1;
static int parity = 1;
static int synchronous = 1;
static int reset_delay = 100;
static int ext_trans = 0;

module_param(host_id, int, 0);
module_param(reconnect, int, 0);
module_param(parity, int, 0);
module_param(synchronous, int, 0);
module_param(reset_delay, int, 0);
module_param(ext_trans, int, 0);

MODULE_LICENSE("Dual MPL/GPL");

/*====================================================================*/

typedef struct scsi_info_t {
    dev_link_t		link;
    dev_node_t		node;
    struct Scsi_Host	*host;
} scsi_info_t;

static void aha152x_release_cs(dev_link_t *link);
static int aha152x_event(event_t event, int priority,
			 event_callback_args_t *args);

static dev_link_t *aha152x_attach(void);
static void aha152x_detach(dev_link_t *);

static dev_link_t *dev_list;
static dev_info_t dev_info = "aha152x_cs";

static dev_link_t *aha152x_attach(void)
{
    scsi_info_t *info;
    client_reg_t client_reg;
    dev_link_t *link;
    int ret;
    
    DEBUG(0, "aha152x_attach()\n");

    /* Create new SCSI device */
    info = kmalloc(sizeof(*info), GFP_KERNEL);
    if (!info) return NULL;
    memset(info, 0, sizeof(*info));
    link = &info->link; link->priv = info;

    link->io.NumPorts1 = 0x20;
    link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
    link->io.IOAddrLines = 10;
    link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
    link->irq.IRQInfo1 = IRQ_LEVEL_ID;
    link->conf.Attributes = CONF_ENABLE_IRQ;
    link->conf.Vcc = 50;
    link->conf.IntType = INT_MEMORY_AND_IO;
    link->conf.Present = PRESENT_OPTION;

    /* Register with Card Services */
    link->next = dev_list;
    dev_list = link;
    client_reg.dev_info = &dev_info;
    client_reg.Version = 0x0210;
    client_reg.event_callback_args.client_data = link;
    ret = pcmcia_register_client(&link->handle, &client_reg);
    if (ret != 0) {
	cs_error(link->handle, RegisterClient, ret);
	aha152x_detach(link);
	return NULL;
    }
    
    return link;
} /* aha152x_attach */

/*====================================================================*/

static void aha152x_detach(dev_link_t *link)
{
    dev_link_t **linkp;

    DEBUG(0, "aha152x_detach(0x%p)\n", link);
    
    /* Locate device structure */
    for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
	if (*linkp == link) break;
    if (*linkp == NULL)
	return;

    if (link->state & DEV_CONFIG)
	aha152x_release_cs(link);

    if (link->handle)
	pcmcia_deregister_client(link->handle);
    
    /* Unlink device structure, free bits */
    *linkp = link->next;
    kfree(link->priv);
    
} /* aha152x_detach */

/*====================================================================*/

#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)

static void aha152x_config_cs(dev_link_t *link)
{
    client_handle_t handle = link->handle;
    scsi_info_t *info = link->priv;
    struct aha152x_setup s;
    tuple_t tuple;
    cisparse_t parse;
    int i, last_ret, last_fn;
    u_char tuple_data[64];
    struct Scsi_Host *host;
    
    DEBUG(0, "aha152x_config(0x%p)\n", link);

    tuple.DesiredTuple = CISTPL_CONFIG;
    tuple.TupleData = tuple_data;
    tuple.TupleDataMax = 64;
    tuple.TupleOffset = 0;
    CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
    CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
    CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
    link->conf.ConfigBase = parse.config.base;

    /* Configure card */
    link->state |= DEV_CONFIG;

    tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
    CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
    while (1) {
	if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
		pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
	    goto next_entry;
	/* For New Media T&J, look for a SCSI window */
	if (parse.cftable_entry.io.win[0].len >= 0x20)
	    link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
	else if ((parse.cftable_entry.io.nwin > 1) &&
		 (parse.cftable_entry.io.win[1].len >= 0x20))
	    link->io.BasePort1 = parse.cftable_entry.io.win[1].base;
	if ((parse.cftable_entry.io.nwin > 0) &&
	    (link->io.BasePort1 < 0xffff)) {
	    link->conf.ConfigIndex = parse.cftable_entry.index;
	    i = pcmcia_request_io(handle, &link->io);
	    if (i == CS_SUCCESS) break;
	}
    next_entry:
	CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
    }
    
    CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
    CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
    
    /* Set configuration options for the aha152x driver */
    memset(&s, 0, sizeof(s));
    s.conf        = "PCMCIA setup";
    s.io_port     = link->io.BasePort1;
    s.irq         = link->irq.AssignedIRQ;
    s.scsiid      = host_id;
    s.reconnect   = reconnect;
    s.parity      = parity;
    s.synchronous = synchronous;
    s.delay       = reset_delay;
    if (ext_trans)
        s.ext_trans = ext_trans;

    host = aha152x_probe_one(&s);
    if (host == NULL) {
	printk(KERN_INFO "aha152x_cs: no SCSI devices found\n");
	goto cs_failed;
    }

    sprintf(info->node.dev_name, "scsi%d", host->host_no);
    link->dev = &info->node;
    info->host = host;

    link->state &= ~DEV_CONFIG_PENDING;
    return;
    
cs_failed:
    cs_error(link->handle, last_fn, last_ret);
    aha152x_release_cs(link);
    return;
}

static void aha152x_release_cs(dev_link_t *link)
{
	scsi_info_t *info = link->priv;

	aha152x_release(info->host);
	link->dev = NULL;
    
	pcmcia_release_configuration(link->handle);
	pcmcia_release_io(link->handle, &link->io);
	pcmcia_release_irq(link->handle, &link->irq);
    
	link->state &= ~DEV_CONFIG;
}

static int aha152x_event(event_t event, int priority,
			 event_callback_args_t *args)
{
    dev_link_t *link = args->client_data;
    scsi_info_t *info = link->priv;
    
    DEBUG(0, "aha152x_event(0x%06x)\n", event);
    
    switch (event) {
    case CS_EVENT_CARD_REMOVAL:
	link->state &= ~DEV_PRESENT;
	if (link->state & DEV_CONFIG)
	    aha152x_release_cs(link);
	break;
    case CS_EVENT_CARD_INSERTION:
	link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
	aha152x_config_cs(link);
	break;
    case CS_EVENT_PM_SUSPEND:
	link->state |= DEV_SUSPEND;
	/* Fall through... */
    case CS_EVENT_RESET_PHYSICAL:
	if (link->state & DEV_CONFIG)
	    pcmcia_release_configuration(link->handle);
	break;
    case CS_EVENT_PM_RESUME:
	link->state &= ~DEV_SUSPEND;
	/* Fall through... */
    case CS_EVENT_CARD_RESET:
	if (link->state & DEV_CONFIG) {
	    Scsi_Cmnd tmp;
	    pcmcia_request_configuration(link->handle, &link->conf);
	    tmp.device->host = info->host;
	    aha152x_host_reset(&tmp);
	}
	break;
    }
    return 0;
}

static struct pcmcia_device_id aha152x_ids[] = {
	PCMCIA_DEVICE_PROD_ID123("New Media", "SCSI", "Bus Toaster", 0xcdf7e4cc, 0x35f26476, 0xa8851d6e),
	PCMCIA_DEVICE_PROD_ID123("NOTEWORTHY", "SCSI", "Bus Toaster", 0xad89c6e8, 0x35f26476, 0xa8851d6e),
	PCMCIA_DEVICE_PROD_ID12("Adaptec, Inc.", "APA-1460 SCSI Host Adapter", 0x24ba9738, 0x3a3c3d20),
	PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Multimedia Sound/SCSI", 0x085a850b, 0x80a6535c),
	PCMCIA_DEVICE_PROD_ID12("NOTEWORTHY", "NWCOMB02 SCSI/AUDIO COMBO CARD", 0xad89c6e8, 0x5f9a615b),
	PCMCIA_DEVICE_NULL,
};
MODULE_DEVICE_TABLE(pcmcia, aha152x_ids);

static struct pcmcia_driver aha152x_cs_driver = {
	.owner		= THIS_MODULE,
	.drv		= {
		.name	= "aha152x_cs",
	},
	.attach		= aha152x_attach,
	.event		= aha152x_event,
	.detach		= aha152x_detach,
	.id_table       = aha152x_ids,
};

static int __init init_aha152x_cs(void)
{
	return pcmcia_register_driver(&aha152x_cs_driver);
}

static void __exit exit_aha152x_cs(void)
{
	pcmcia_unregister_driver(&aha152x_cs_driver);
	BUG_ON(dev_list != NULL);
}

module_init(init_aha152x_cs);
module_exit(exit_aha152x_cs);