blob: 802a81d4736778192166ff41e7d8635b3cb5a406 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*======================================================================
2
3 A driver for PCMCIA parallel port adapters
4
5 (specifically, for the Quatech SPP-100 EPP card: other cards will
6 probably require driver tweaks)
7
8 parport_cs.c 1.29 2002/10/11 06:57:41
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
26 which 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/kernel.h>
38#include <linux/module.h>
39#include <linux/init.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070040#include <linux/ptrace.h>
41#include <linux/slab.h>
42#include <linux/string.h>
43#include <linux/timer.h>
44#include <linux/ioport.h>
45#include <linux/major.h>
46
47#include <linux/parport.h>
48#include <linux/parport_pc.h>
49
Linus Torvalds1da177e2005-04-16 15:20:36 -070050#include <pcmcia/cs_types.h>
51#include <pcmcia/cs.h>
52#include <pcmcia/cistpl.h>
53#include <pcmcia/ds.h>
54#include <pcmcia/cisreg.h>
55#include <pcmcia/ciscode.h>
56
57/*====================================================================*/
58
59/* Module parameters */
60
61MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
62MODULE_DESCRIPTION("PCMCIA parallel port card driver");
63MODULE_LICENSE("Dual MPL/GPL");
64
65#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
66
67INT_MODULE_PARM(epp_mode, 1);
68
69#ifdef PCMCIA_DEBUG
70INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
71#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
72static char *version =
73"parport_cs.c 1.29 2002/10/11 06:57:41 (David Hinds)";
74#else
75#define DEBUG(n, args...)
76#endif
77
78/*====================================================================*/
79
80#define FORCE_EPP_MODE 0x08
81
82typedef struct parport_info_t {
Dominik Brodowskifd238232006-03-05 10:45:09 +010083 struct pcmcia_device *p_dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 int ndev;
85 dev_node_t node;
86 struct parport *port;
87} parport_info_t;
88
Dominik Brodowskicc3b4862005-11-14 21:23:14 +010089static void parport_detach(struct pcmcia_device *p_dev);
Dominik Brodowski15b99ac2006-03-31 17:26:06 +020090static int parport_config(struct pcmcia_device *link);
Dominik Brodowskifba395e2006-03-31 17:21:06 +020091static void parport_cs_release(struct pcmcia_device *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070092
93/*======================================================================
94
95 parport_attach() creates an "instance" of the driver, allocating
96 local data structures for one device. The device is registered
97 with Card Services.
98
99======================================================================*/
100
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200101static int parport_probe(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102{
103 parport_info_t *info;
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100104
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105 DEBUG(0, "parport_attach()\n");
106
107 /* Create new parport device */
Yoann Padioleaudd00cc42007-07-19 01:49:03 -0700108 info = kzalloc(sizeof(*info), GFP_KERNEL);
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100109 if (!info) return -ENOMEM;
Dominik Brodowskifd238232006-03-05 10:45:09 +0100110 link->priv = info;
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200111 info->p_dev = link;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112
113 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
114 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
115 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
116 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
117 link->conf.Attributes = CONF_ENABLE_IRQ;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 link->conf.IntType = INT_MEMORY_AND_IO;
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100119
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200120 return parport_config(link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121} /* parport_attach */
122
123/*======================================================================
124
125 This deletes a driver "instance". The device is de-registered
126 with Card Services. If it has been released, all local data
127 structures are freed. Otherwise, the structures will be freed
128 when the device is released.
129
130======================================================================*/
131
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200132static void parport_detach(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134 DEBUG(0, "parport_detach(0x%p)\n", link);
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100135
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100136 parport_cs_release(link);
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100137
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 kfree(link->priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139} /* parport_detach */
140
141/*======================================================================
142
143 parport_config() is scheduled to run after a CARD_INSERTION event
144 is received, to configure the PCMCIA socket, and to make the
145 parport device available to the system.
146
147======================================================================*/
148
149#define CS_CHECK(fn, ret) \
150do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
151
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200152static int parport_config(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154 parport_info_t *info = link->priv;
155 tuple_t tuple;
156 u_short buf[128];
157 cisparse_t parse;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158 cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
159 cistpl_cftable_entry_t dflt = { 0 };
160 struct parport *p;
161 int last_ret, last_fn;
162
163 DEBUG(0, "parport_config(0x%p)\n", link);
164
165 tuple.TupleData = (cisdata_t *)buf;
166 tuple.TupleOffset = 0; tuple.TupleDataMax = 255;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
168 tuple.Attributes = 0;
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200169 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 while (1) {
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200171 if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
172 pcmcia_parse_tuple(link, &tuple, &parse) != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173 goto next_entry;
174
175 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
176 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
177 link->conf.ConfigIndex = cfg->index;
178 if (epp_mode)
179 link->conf.ConfigIndex |= FORCE_EPP_MODE;
180 link->io.BasePort1 = io->win[0].base;
181 link->io.NumPorts1 = io->win[0].len;
182 link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
183 if (io->nwin == 2) {
184 link->io.BasePort2 = io->win[1].base;
185 link->io.NumPorts2 = io->win[1].len;
186 }
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200187 if (pcmcia_request_io(link, &link->io) != 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188 goto next_entry;
189 /* If we've got this far, we're done */
190 break;
191 }
192
193 next_entry:
194 if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200195 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 }
197
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200198 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
199 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201 p = parport_pc_probe_port(link->io.BasePort1, link->io.BasePort2,
202 link->irq.AssignedIRQ, PARPORT_DMA_NONE,
David Brownellc15a3832007-05-08 00:27:35 -0700203 &link->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 if (p == NULL) {
205 printk(KERN_NOTICE "parport_cs: parport_pc_probe_port() at "
206 "0x%3x, irq %u failed\n", link->io.BasePort1,
207 link->irq.AssignedIRQ);
208 goto failed;
209 }
210
211 p->modes |= PARPORT_MODE_PCSPP;
212 if (epp_mode)
213 p->modes |= PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP;
214 info->ndev = 1;
215 info->node.major = LP_MAJOR;
216 info->node.minor = p->number;
217 info->port = p;
218 strcpy(info->node.dev_name, p->name);
Dominik Brodowskifd238232006-03-05 10:45:09 +0100219 link->dev_node = &info->node;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200221 return 0;
222
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223cs_failed:
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200224 cs_error(link, last_fn, last_ret);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225failed:
226 parport_cs_release(link);
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200227 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228} /* parport_config */
229
230/*======================================================================
231
232 After a card is removed, parport_cs_release() will unregister the
233 device, and release the PCMCIA configuration. If the device is
234 still open, this will be postponed until it is closed.
235
236======================================================================*/
237
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200238void parport_cs_release(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239{
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100240 parport_info_t *info = link->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100242 DEBUG(0, "parport_release(0x%p)\n", link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100244 if (info->ndev) {
245 struct parport *p = info->port;
246 parport_pc_unregister_port(p);
247 }
248 info->ndev = 0;
249
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200250 pcmcia_disable_device(link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251} /* parport_cs_release */
252
Dominik Brodowski98e4c282005-11-14 21:21:18 +0100253
Dominik Brodowski476835a2005-06-27 16:28:29 -0700254static struct pcmcia_device_id parport_ids[] = {
255 PCMCIA_DEVICE_FUNC_ID(3),
Tony Olech44e5e332006-11-29 08:54:51 +0000256 PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial+Parallel Port: SP230",0x3beb8cf2,0xdb9e58bc),
Dominik Brodowski476835a2005-06-27 16:28:29 -0700257 PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0003),
258 PCMCIA_DEVICE_NULL
259};
260MODULE_DEVICE_TABLE(pcmcia, parport_ids);
261
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262static struct pcmcia_driver parport_cs_driver = {
263 .owner = THIS_MODULE,
264 .drv = {
265 .name = "parport_cs",
266 },
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200267 .probe = parport_probe,
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100268 .remove = parport_detach,
Dominik Brodowski476835a2005-06-27 16:28:29 -0700269 .id_table = parport_ids,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270};
271
272static int __init init_parport_cs(void)
273{
274 return pcmcia_register_driver(&parport_cs_driver);
275}
276
277static void __exit exit_parport_cs(void)
278{
279 pcmcia_unregister_driver(&parport_cs_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280}
281
282module_init(init_parport_cs);
283module_exit(exit_parport_cs);