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 void 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_attach(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 parport_config(link);
126 } /* parport_attach */
128 /*======================================================================
130 This deletes a driver "instance". The device is de-registered
131 with Card Services. If it has been released, all local data
132 structures are freed. Otherwise, the structures will be freed
133 when the device is released.
135 ======================================================================*/
137 static void parport_detach(struct pcmcia_device *link)
139 DEBUG(0, "parport_detach(0x%p)\n", link);
141 if (link->state & DEV_CONFIG)
142 parport_cs_release(link);
145 } /* parport_detach */
147 /*======================================================================
149 parport_config() is scheduled to run after a CARD_INSERTION event
150 is received, to configure the PCMCIA socket, and to make the
151 parport device available to the system.
153 ======================================================================*/
155 #define CS_CHECK(fn, ret) \
156 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
158 void parport_config(struct pcmcia_device *link)
160 parport_info_t *info = link->priv;
164 cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
165 cistpl_cftable_entry_t dflt = { 0 };
167 int last_ret, last_fn;
169 DEBUG(0, "parport_config(0x%p)\n", link);
171 tuple.TupleData = (cisdata_t *)buf;
172 tuple.TupleOffset = 0; tuple.TupleDataMax = 255;
173 tuple.Attributes = 0;
174 tuple.DesiredTuple = CISTPL_CONFIG;
175 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
176 CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link, &tuple));
177 CS_CHECK(ParseTuple, pcmcia_parse_tuple(link, &tuple, &parse));
178 link->conf.ConfigBase = parse.config.base;
179 link->conf.Present = parse.config.rmask[0];
182 link->state |= DEV_CONFIG;
184 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
185 tuple.Attributes = 0;
186 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
188 if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
189 pcmcia_parse_tuple(link, &tuple, &parse) != 0)
192 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
193 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
194 link->conf.ConfigIndex = cfg->index;
196 link->conf.ConfigIndex |= FORCE_EPP_MODE;
197 link->io.BasePort1 = io->win[0].base;
198 link->io.NumPorts1 = io->win[0].len;
199 link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
201 link->io.BasePort2 = io->win[1].base;
202 link->io.NumPorts2 = io->win[1].len;
204 if (pcmcia_request_io(link, &link->io) != 0)
206 /* If we've got this far, we're done */
211 if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
212 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
215 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
216 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
218 p = parport_pc_probe_port(link->io.BasePort1, link->io.BasePort2,
219 link->irq.AssignedIRQ, PARPORT_DMA_NONE,
222 printk(KERN_NOTICE "parport_cs: parport_pc_probe_port() at "
223 "0x%3x, irq %u failed\n", link->io.BasePort1,
224 link->irq.AssignedIRQ);
228 p->modes |= PARPORT_MODE_PCSPP;
230 p->modes |= PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP;
232 info->node.major = LP_MAJOR;
233 info->node.minor = p->number;
235 strcpy(info->node.dev_name, p->name);
236 link->dev_node = &info->node;
238 link->state &= ~DEV_CONFIG_PENDING;
242 cs_error(link, last_fn, last_ret);
244 parport_cs_release(link);
245 link->state &= ~DEV_CONFIG_PENDING;
247 } /* parport_config */
249 /*======================================================================
251 After a card is removed, parport_cs_release() will unregister the
252 device, and release the PCMCIA configuration. If the device is
253 still open, this will be postponed until it is closed.
255 ======================================================================*/
257 void parport_cs_release(struct pcmcia_device *link)
259 parport_info_t *info = link->priv;
261 DEBUG(0, "parport_release(0x%p)\n", link);
264 struct parport *p = info->port;
265 parport_pc_unregister_port(p);
269 pcmcia_disable_device(link);
270 } /* parport_cs_release */
273 static struct pcmcia_device_id parport_ids[] = {
274 PCMCIA_DEVICE_FUNC_ID(3),
275 PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0003),
278 MODULE_DEVICE_TABLE(pcmcia, parport_ids);
280 static struct pcmcia_driver parport_cs_driver = {
281 .owner = THIS_MODULE,
283 .name = "parport_cs",
285 .probe = parport_attach,
286 .remove = parport_detach,
287 .id_table = parport_ids,
290 static int __init init_parport_cs(void)
292 return pcmcia_register_driver(&parport_cs_driver);
295 static void __exit exit_parport_cs(void)
297 pcmcia_unregister_driver(&parport_cs_driver);
300 module_init(init_parport_cs);
301 module_exit(exit_parport_cs);