Commit | Line | Data |
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1da177e4 LT |
1 | /*====================================================================== |
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> | |
1da177e4 LT |
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> | |
51dcdfec | 46 | #include <linux/interrupt.h> |
1da177e4 LT |
47 | |
48 | #include <linux/parport.h> | |
49 | #include <linux/parport_pc.h> | |
50 | ||
1da177e4 LT |
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 | ||
61 | MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); | |
62 | MODULE_DESCRIPTION("PCMCIA parallel port card driver"); | |
63 | MODULE_LICENSE("Dual MPL/GPL"); | |
64 | ||
65 | #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0) | |
66 | ||
67 | INT_MODULE_PARM(epp_mode, 1); | |
68 | ||
1da177e4 LT |
69 | |
70 | /*====================================================================*/ | |
71 | ||
72 | #define FORCE_EPP_MODE 0x08 | |
73 | ||
74 | typedef struct parport_info_t { | |
fd238232 | 75 | struct pcmcia_device *p_dev; |
1da177e4 | 76 | int ndev; |
1da177e4 LT |
77 | struct parport *port; |
78 | } parport_info_t; | |
79 | ||
cc3b4866 | 80 | static void parport_detach(struct pcmcia_device *p_dev); |
15b99ac1 | 81 | static int parport_config(struct pcmcia_device *link); |
fba395ee | 82 | static void parport_cs_release(struct pcmcia_device *); |
1da177e4 LT |
83 | |
84 | /*====================================================================== | |
85 | ||
86 | parport_attach() creates an "instance" of the driver, allocating | |
87 | local data structures for one device. The device is registered | |
88 | with Card Services. | |
89 | ||
90 | ======================================================================*/ | |
91 | ||
15b99ac1 | 92 | static int parport_probe(struct pcmcia_device *link) |
1da177e4 LT |
93 | { |
94 | parport_info_t *info; | |
f8cfa618 | 95 | |
9b44de20 | 96 | dev_dbg(&link->dev, "parport_attach()\n"); |
1da177e4 LT |
97 | |
98 | /* Create new parport device */ | |
dd00cc48 | 99 | info = kzalloc(sizeof(*info), GFP_KERNEL); |
f8cfa618 | 100 | if (!info) return -ENOMEM; |
fd238232 | 101 | link->priv = info; |
fba395ee | 102 | info->p_dev = link; |
1da177e4 | 103 | |
90abdc3b DB |
104 | link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; |
105 | link->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; | |
1da177e4 | 106 | link->conf.Attributes = CONF_ENABLE_IRQ; |
1da177e4 | 107 | link->conf.IntType = INT_MEMORY_AND_IO; |
f8cfa618 | 108 | |
15b99ac1 | 109 | return parport_config(link); |
1da177e4 LT |
110 | } /* parport_attach */ |
111 | ||
112 | /*====================================================================== | |
113 | ||
114 | This deletes a driver "instance". The device is de-registered | |
115 | with Card Services. If it has been released, all local data | |
116 | structures are freed. Otherwise, the structures will be freed | |
117 | when the device is released. | |
118 | ||
119 | ======================================================================*/ | |
120 | ||
fba395ee | 121 | static void parport_detach(struct pcmcia_device *link) |
1da177e4 | 122 | { |
9b44de20 | 123 | dev_dbg(&link->dev, "parport_detach\n"); |
cc3b4866 | 124 | |
e2d40963 | 125 | parport_cs_release(link); |
cc3b4866 | 126 | |
1da177e4 | 127 | kfree(link->priv); |
1da177e4 LT |
128 | } /* parport_detach */ |
129 | ||
130 | /*====================================================================== | |
131 | ||
132 | parport_config() is scheduled to run after a CARD_INSERTION event | |
133 | is received, to configure the PCMCIA socket, and to make the | |
134 | parport device available to the system. | |
135 | ||
136 | ======================================================================*/ | |
137 | ||
84e2d340 DB |
138 | static int parport_config_check(struct pcmcia_device *p_dev, |
139 | cistpl_cftable_entry_t *cfg, | |
8e2fc39d | 140 | cistpl_cftable_entry_t *dflt, |
ad913c11 | 141 | unsigned int vcc, |
84e2d340 DB |
142 | void *priv_data) |
143 | { | |
84e2d340 DB |
144 | if ((cfg->io.nwin > 0) || (dflt->io.nwin > 0)) { |
145 | cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt->io; | |
90abdc3b | 146 | p_dev->io_lines = io->flags & CISTPL_IO_LINES_MASK; |
84e2d340 DB |
147 | if (epp_mode) |
148 | p_dev->conf.ConfigIndex |= FORCE_EPP_MODE; | |
90abdc3b DB |
149 | p_dev->resource[0]->start = io->win[0].base; |
150 | p_dev->resource[0]->end = io->win[0].len; | |
84e2d340 | 151 | if (io->nwin == 2) { |
90abdc3b DB |
152 | p_dev->resource[1]->start = io->win[1].base; |
153 | p_dev->resource[1]->end = io->win[1].len; | |
84e2d340 | 154 | } |
90abdc3b | 155 | if (pcmcia_request_io(p_dev) != 0) |
8e2fc39d | 156 | return -ENODEV; |
84e2d340 DB |
157 | return 0; |
158 | } | |
ad913c11 | 159 | return -ENODEV; |
84e2d340 DB |
160 | } |
161 | ||
15b99ac1 | 162 | static int parport_config(struct pcmcia_device *link) |
1da177e4 | 163 | { |
1da177e4 | 164 | parport_info_t *info = link->priv; |
1da177e4 | 165 | struct parport *p; |
9b44de20 | 166 | int ret; |
84e2d340 | 167 | |
9b44de20 | 168 | dev_dbg(&link->dev, "parport_config\n"); |
84e2d340 | 169 | |
9b44de20 DB |
170 | ret = pcmcia_loop_config(link, parport_config_check, NULL); |
171 | if (ret) | |
84e2d340 | 172 | goto failed; |
84e2d340 | 173 | |
eb14120f | 174 | if (!link->irq) |
9b44de20 DB |
175 | goto failed; |
176 | ret = pcmcia_request_configuration(link, &link->conf); | |
177 | if (ret) | |
178 | goto failed; | |
1da177e4 | 179 | |
9a017a91 DB |
180 | p = parport_pc_probe_port(link->resource[0]->start, |
181 | link->resource[1]->start, | |
eb14120f | 182 | link->irq, PARPORT_DMA_NONE, |
51dcdfec | 183 | &link->dev, IRQF_SHARED); |
1da177e4 LT |
184 | if (p == NULL) { |
185 | printk(KERN_NOTICE "parport_cs: parport_pc_probe_port() at " | |
9a017a91 DB |
186 | "0x%3x, irq %u failed\n", |
187 | (unsigned int) link->resource[0]->start, | |
eb14120f | 188 | link->irq); |
1da177e4 LT |
189 | goto failed; |
190 | } | |
191 | ||
192 | p->modes |= PARPORT_MODE_PCSPP; | |
193 | if (epp_mode) | |
194 | p->modes |= PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP; | |
195 | info->ndev = 1; | |
1da177e4 | 196 | info->port = p; |
1da177e4 | 197 | |
15b99ac1 DB |
198 | return 0; |
199 | ||
1da177e4 LT |
200 | failed: |
201 | parport_cs_release(link); | |
15b99ac1 | 202 | return -ENODEV; |
1da177e4 LT |
203 | } /* parport_config */ |
204 | ||
205 | /*====================================================================== | |
206 | ||
207 | After a card is removed, parport_cs_release() will unregister the | |
208 | device, and release the PCMCIA configuration. If the device is | |
209 | still open, this will be postponed until it is closed. | |
210 | ||
211 | ======================================================================*/ | |
212 | ||
23d5f96c | 213 | static void parport_cs_release(struct pcmcia_device *link) |
1da177e4 | 214 | { |
5f2a71fc | 215 | parport_info_t *info = link->priv; |
1da177e4 | 216 | |
9b44de20 | 217 | dev_dbg(&link->dev, "parport_release\n"); |
5f2a71fc DB |
218 | |
219 | if (info->ndev) { | |
220 | struct parport *p = info->port; | |
221 | parport_pc_unregister_port(p); | |
222 | } | |
223 | info->ndev = 0; | |
1da177e4 | 224 | |
fba395ee | 225 | pcmcia_disable_device(link); |
1da177e4 LT |
226 | } /* parport_cs_release */ |
227 | ||
98e4c28b | 228 | |
476835af DB |
229 | static struct pcmcia_device_id parport_ids[] = { |
230 | PCMCIA_DEVICE_FUNC_ID(3), | |
44e5e33e | 231 | PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial+Parallel Port: SP230",0x3beb8cf2,0xdb9e58bc), |
476835af DB |
232 | PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0003), |
233 | PCMCIA_DEVICE_NULL | |
234 | }; | |
235 | MODULE_DEVICE_TABLE(pcmcia, parport_ids); | |
236 | ||
1da177e4 LT |
237 | static struct pcmcia_driver parport_cs_driver = { |
238 | .owner = THIS_MODULE, | |
239 | .drv = { | |
240 | .name = "parport_cs", | |
241 | }, | |
15b99ac1 | 242 | .probe = parport_probe, |
cc3b4866 | 243 | .remove = parport_detach, |
476835af | 244 | .id_table = parport_ids, |
1da177e4 LT |
245 | }; |
246 | ||
247 | static int __init init_parport_cs(void) | |
248 | { | |
249 | return pcmcia_register_driver(&parport_cs_driver); | |
250 | } | |
251 | ||
252 | static void __exit exit_parport_cs(void) | |
253 | { | |
254 | pcmcia_unregister_driver(&parport_cs_driver); | |
1da177e4 LT |
255 | } |
256 | ||
257 | module_init(init_parport_cs); | |
258 | module_exit(exit_parport_cs); |