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/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>
47 #include <linux/parport.h>
48 #include <linux/parport_pc.h>
50 #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>
57 /*====================================================================*/
59 /* Module parameters */
61 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
62 MODULE_DESCRIPTION("PCMCIA parallel port card driver");
63 MODULE_LICENSE("Dual MPL/GPL");
65 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
67 INT_MODULE_PARM(epp_mode, 1);
70 INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
71 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
72 static char *version =
73 "parport_cs.c 1.29 2002/10/11 06:57:41 (David Hinds)";
75 #define DEBUG(n, args...)
78 /*====================================================================*/
80 #define FORCE_EPP_MODE 0x08
82 typedef struct parport_info_t {
83 struct pcmcia_device *p_dev;
89 static void parport_detach(struct pcmcia_device *p_dev);
90 static int parport_config(struct pcmcia_device *link);
91 static void parport_cs_release(struct pcmcia_device *);
93 /*======================================================================
95 parport_attach() creates an "instance" of the driver, allocating
96 local data structures for one device. The device is registered
99 ======================================================================*/
101 static int parport_probe(struct pcmcia_device *link)
103 parport_info_t *info;
105 DEBUG(0, "parport_attach()\n");
107 /* Create new parport device */
108 info = kmalloc(sizeof(*info), GFP_KERNEL);
109 if (!info) return -ENOMEM;
110 memset(info, 0, sizeof(*info));
114 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
115 link->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
116 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
117 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
118 link->conf.Attributes = CONF_ENABLE_IRQ;
119 link->conf.IntType = INT_MEMORY_AND_IO;
121 return parport_config(link);
122 } /* parport_attach */
124 /*======================================================================
126 This deletes a driver "instance". The device is de-registered
127 with Card Services. If it has been released, all local data
128 structures are freed. Otherwise, the structures will be freed
129 when the device is released.
131 ======================================================================*/
133 static void parport_detach(struct pcmcia_device *link)
135 DEBUG(0, "parport_detach(0x%p)\n", link);
137 parport_cs_release(link);
140 } /* parport_detach */
142 /*======================================================================
144 parport_config() is scheduled to run after a CARD_INSERTION event
145 is received, to configure the PCMCIA socket, and to make the
146 parport device available to the system.
148 ======================================================================*/
150 #define CS_CHECK(fn, ret) \
151 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
153 static int parport_config(struct pcmcia_device *link)
155 parport_info_t *info = link->priv;
159 cistpl_cftable_entry_t *cfg = &parse.cftable_entry;
160 cistpl_cftable_entry_t dflt = { 0 };
162 int last_ret, last_fn;
164 DEBUG(0, "parport_config(0x%p)\n", link);
166 tuple.TupleData = (cisdata_t *)buf;
167 tuple.TupleOffset = 0; tuple.TupleDataMax = 255;
168 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
169 tuple.Attributes = 0;
170 CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link, &tuple));
172 if (pcmcia_get_tuple_data(link, &tuple) != 0 ||
173 pcmcia_parse_tuple(link, &tuple, &parse) != 0)
176 if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
177 cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
178 link->conf.ConfigIndex = cfg->index;
180 link->conf.ConfigIndex |= FORCE_EPP_MODE;
181 link->io.BasePort1 = io->win[0].base;
182 link->io.NumPorts1 = io->win[0].len;
183 link->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
185 link->io.BasePort2 = io->win[1].base;
186 link->io.NumPorts2 = io->win[1].len;
188 if (pcmcia_request_io(link, &link->io) != 0)
190 /* If we've got this far, we're done */
195 if (cfg->flags & CISTPL_CFTABLE_DEFAULT) dflt = *cfg;
196 CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(link, &tuple));
199 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
200 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
202 p = parport_pc_probe_port(link->io.BasePort1, link->io.BasePort2,
203 link->irq.AssignedIRQ, PARPORT_DMA_NONE,
206 printk(KERN_NOTICE "parport_cs: parport_pc_probe_port() at "
207 "0x%3x, irq %u failed\n", link->io.BasePort1,
208 link->irq.AssignedIRQ);
212 p->modes |= PARPORT_MODE_PCSPP;
214 p->modes |= PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP;
216 info->node.major = LP_MAJOR;
217 info->node.minor = p->number;
219 strcpy(info->node.dev_name, p->name);
220 link->dev_node = &info->node;
225 cs_error(link, last_fn, last_ret);
227 parport_cs_release(link);
229 } /* parport_config */
231 /*======================================================================
233 After a card is removed, parport_cs_release() will unregister the
234 device, and release the PCMCIA configuration. If the device is
235 still open, this will be postponed until it is closed.
237 ======================================================================*/
239 void parport_cs_release(struct pcmcia_device *link)
241 parport_info_t *info = link->priv;
243 DEBUG(0, "parport_release(0x%p)\n", link);
246 struct parport *p = info->port;
247 parport_pc_unregister_port(p);
251 pcmcia_disable_device(link);
252 } /* parport_cs_release */
255 static struct pcmcia_device_id parport_ids[] = {
256 PCMCIA_DEVICE_FUNC_ID(3),
257 PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial+Parallel Port: SP230",0x3beb8cf2,0xdb9e58bc),
258 PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0003),
261 MODULE_DEVICE_TABLE(pcmcia, parport_ids);
263 static struct pcmcia_driver parport_cs_driver = {
264 .owner = THIS_MODULE,
266 .name = "parport_cs",
268 .probe = parport_probe,
269 .remove = parport_detach,
270 .id_table = parport_ids,
273 static int __init init_parport_cs(void)
275 return pcmcia_register_driver(&parport_cs_driver);
278 static void __exit exit_parport_cs(void)
280 pcmcia_unregister_driver(&parport_cs_driver);
283 module_init(init_parport_cs);
284 module_exit(exit_parport_cs);