1 /*======================================================================
3 A driver for PCMCIA parallel port adapters
5 (specifically, for the Quatech SPP-100 EPP card: other cards will
6 probably require driver tweaks)
8 parport_cs.c 1.29 2002/10/11 06:57:41
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/
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.
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.
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.
35 ======================================================================*/
37 #include <linux/kernel.h>
38 #include <linux/module.h>
39 #include <linux/init.h>
40 #include <linux/sched.h>
41 #include <linux/ptrace.h>
42 #include <linux/slab.h>
43 #include <linux/string.h>
44 #include <linux/timer.h>
45 #include <linux/ioport.h>
46 #include <linux/major.h>
48 #include <linux/parport.h>
49 #include <linux/parport_pc.h>
51 #include <pcmcia/cs_types.h>
52 #include <pcmcia/cs.h>
53 #include <pcmcia/cistpl.h>
54 #include <pcmcia/ds.h>
55 #include <pcmcia/cisreg.h>
56 #include <pcmcia/ciscode.h>
58 /*====================================================================*/
60 /* Module parameters */
62 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
63 MODULE_DESCRIPTION("PCMCIA parallel port card driver");
64 MODULE_LICENSE("Dual MPL/GPL");
66 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
68 INT_MODULE_PARM(epp_mode, 1);
71 INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
72 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
73 static char *version =
74 "parport_cs.c 1.29 2002/10/11 06:57:41 (David Hinds)";
76 #define DEBUG(n, args...)
79 /*====================================================================*/
81 #define FORCE_EPP_MODE 0x08
83 typedef struct parport_info_t {
84 struct pcmcia_device *p_dev;
90 static void parport_detach(struct pcmcia_device *p_dev);
91 static int parport_config(struct pcmcia_device *link);
92 static void parport_cs_release(struct pcmcia_device *);
94 /*======================================================================
96 parport_attach() creates an "instance" of the driver, allocating
97 local data structures for one device. The device is registered
100 ======================================================================*/
102 static int parport_probe(struct pcmcia_device *link)
104 parport_info_t *info;
106 DEBUG(0, "parport_attach()\n");
108 /* Create new parport device */
109 info = kmalloc(sizeof(*info), GFP_KERNEL);
110 if (!info) return -ENOMEM;
111 memset(info, 0, sizeof(*info));
115 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
116 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
117 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
118 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
119 link->conf.Attributes = CONF_ENABLE_IRQ;
120 link->conf.IntType = INT_MEMORY_AND_IO;
122 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
123 return parport_config(link);
124 } /* parport_attach */
126 /*======================================================================
128 This deletes a driver "instance". The device is de-registered
129 with Card Services. If it has been released, all local data
130 structures are freed. Otherwise, the structures will be freed
131 when the device is released.
133 ======================================================================*/
135 static void parport_detach(struct pcmcia_device *link)
137 DEBUG(0, "parport_detach(0x%p)\n", link);
139 if (link->state & DEV_CONFIG)
140 parport_cs_release(link);
143 } /* parport_detach */
145 /*======================================================================
147 parport_config() is scheduled to run after a CARD_INSERTION event
148 is received, to configure the PCMCIA socket, and to make the
149 parport device available to the system.
151 ======================================================================*/
153 #define CS_CHECK(fn, ret) \
154 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
156 static int parport_config(struct pcmcia_device *link)
158 parport_info_t *info = link->priv;
162 cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
163 cistpl_cftable_entry_t dflt = { 0 };
165 int last_ret, last_fn;
167 DEBUG(0, "parport_config(0x%p)\n", link);
169 tuple.TupleData = (cisdata_t *)buf;
170 tuple.TupleOffset = 0; tuple.TupleDataMax = 255;
171 tuple.Attributes = 0;
172 tuple.DesiredTuple = CISTPL_CONFIG;
173 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
174 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
175 CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
176 link->conf.ConfigBase = parse.config.base;
177 link->conf.Present = parse.config.rmask[0];
180 link->state |= DEV_CONFIG;
182 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
183 tuple.Attributes = 0;
184 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
186 if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
187 pcmcia_parse_tuple(link, &tuple, &parse) != 0)
190 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
191 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
192 link->conf.ConfigIndex = cfg->index;
194 link->conf.ConfigIndex |= FORCE_EPP_MODE;
195 link->io.BasePort1 = io->win[0].base;
196 link->io.NumPorts1 = io->win[0].len;
197 link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
199 link->io.BasePort2 = io->win[1].base;
200 link->io.NumPorts2 = io->win[1].len;
202 if (pcmcia_request_io(link, &link->io) != 0)
204 /* If we've got this far, we're done */
209 if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
210 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
213 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
214 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
216 p = parport_pc_probe_port(link->io.BasePort1, link->io.BasePort2,
217 link->irq.AssignedIRQ, PARPORT_DMA_NONE,
220 printk(KERN_NOTICE "parport_cs: parport_pc_probe_port() at "
221 "0x%3x, irq %u failed\n", link->io.BasePort1,
222 link->irq.AssignedIRQ);
226 p->modes |= PARPORT_MODE_PCSPP;
228 p->modes |= PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP;
230 info->node.major = LP_MAJOR;
231 info->node.minor = p->number;
233 strcpy(info->node.dev_name, p->name);
234 link->dev_node = &info->node;
236 link->state &= ~DEV_CONFIG_PENDING;
240 cs_error(link, last_fn, last_ret);
242 parport_cs_release(link);
243 link->state &= ~DEV_CONFIG_PENDING;
245 } /* parport_config */
247 /*======================================================================
249 After a card is removed, parport_cs_release() will unregister the
250 device, and release the PCMCIA configuration. If the device is
251 still open, this will be postponed until it is closed.
253 ======================================================================*/
255 void parport_cs_release(struct pcmcia_device *link)
257 parport_info_t *info = link->priv;
259 DEBUG(0, "parport_release(0x%p)\n", link);
262 struct parport *p = info->port;
263 parport_pc_unregister_port(p);
267 pcmcia_disable_device(link);
268 } /* parport_cs_release */
271 static struct pcmcia_device_id parport_ids[] = {
272 PCMCIA_DEVICE_FUNC_ID(3),
273 PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0003),
276 MODULE_DEVICE_TABLE(pcmcia, parport_ids);
278 static struct pcmcia_driver parport_cs_driver = {
279 .owner = THIS_MODULE,
281 .name = "parport_cs",
283 .probe = parport_probe,
284 .remove = parport_detach,
285 .id_table = parport_ids,
288 static int __init init_parport_cs(void)
290 return pcmcia_register_driver(&parport_cs_driver);
293 static void __exit exit_parport_cs(void)
295 pcmcia_unregister_driver(&parport_cs_driver);
298 module_init(init_parport_cs);
299 module_exit(exit_parport_cs);