serial: xilinx_uartps: fix bad register write in console_write
[linux-2.6-xlnx.git] / drivers / isdn / hisax / elsa_cs.c
bloba8c4d3fc9a6d6d8d7000ae8f6a5a6d4b02ca3d34
1 /*======================================================================
3 An elsa_cs PCMCIA client driver
5 This driver is for the Elsa PCM ISDN Cards, i.e. the MicroLink
8 The contents of this file are subject to the Mozilla Public
9 License Version 1.1 (the "License"); you may not use this file
10 except in compliance with the License. You may obtain a copy of
11 the License at http://www.mozilla.org/MPL/
13 Software distributed under the License is distributed on an "AS
14 IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
15 implied. See the License for the specific language governing
16 rights and limitations under the License.
18 The initial developer of the original code is David A. Hinds
19 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
20 are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
22 Modifications from dummy_cs.c are Copyright (C) 1999-2001 Klaus
23 Lichtenwalder <Lichtenwalder@ACM.org>. All Rights Reserved.
25 Alternatively, the contents of this file may be used under the
26 terms of the GNU General Public License version 2 (the "GPL"), in
27 which case the provisions of the GPL are applicable instead of the
28 above. If you wish to allow the use of your version of this file
29 only under the terms of the GPL and not to allow others to use
30 your version of this file under the MPL, indicate your decision
31 by deleting the provisions above and replace them with the notice
32 and other provisions required by the GPL. If you do not delete
33 the provisions above, a recipient may use your version of this
34 file under either the MPL or the GPL.
36 ======================================================================*/
38 #include <linux/module.h>
39 #include <linux/kernel.h>
40 #include <linux/init.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 <asm/io.h>
48 #include <pcmcia/cistpl.h>
49 #include <pcmcia/cisreg.h>
50 #include <pcmcia/ds.h>
51 #include "hisax_cfg.h"
53 MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for Elsa PCM cards");
54 MODULE_AUTHOR("Klaus Lichtenwalder");
55 MODULE_LICENSE("Dual MPL/GPL");
58 /*====================================================================*/
60 /* Parameters that can be set with 'insmod' */
62 static int protocol = 2; /* EURO-ISDN Default */
63 module_param(protocol, int, 0);
65 static int elsa_cs_config(struct pcmcia_device *link) __devinit;
66 static void elsa_cs_release(struct pcmcia_device *link);
67 static void elsa_cs_detach(struct pcmcia_device *p_dev) __devexit;
69 typedef struct local_info_t {
70 struct pcmcia_device *p_dev;
71 int busy;
72 int cardnr;
73 } local_info_t;
75 static int __devinit elsa_cs_probe(struct pcmcia_device *link)
77 local_info_t *local;
79 dev_dbg(&link->dev, "elsa_cs_attach()\n");
81 /* Allocate space for private device-specific data */
82 local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
83 if (!local) return -ENOMEM;
85 local->p_dev = link;
86 link->priv = local;
88 local->cardnr = -1;
90 return elsa_cs_config(link);
91 } /* elsa_cs_attach */
93 static void __devexit elsa_cs_detach(struct pcmcia_device *link)
95 local_info_t *info = link->priv;
97 dev_dbg(&link->dev, "elsa_cs_detach(0x%p)\n", link);
99 info->busy = 1;
100 elsa_cs_release(link);
102 kfree(info);
103 } /* elsa_cs_detach */
105 static int elsa_cs_configcheck(struct pcmcia_device *p_dev, void *priv_data)
107 int j;
109 p_dev->io_lines = 3;
110 p_dev->resource[0]->end = 8;
111 p_dev->resource[0]->flags &= IO_DATA_PATH_WIDTH;
112 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
114 if ((p_dev->resource[0]->end) && p_dev->resource[0]->start) {
115 printk(KERN_INFO "(elsa_cs: looks like the 96 model)\n");
116 if (!pcmcia_request_io(p_dev))
117 return 0;
118 } else {
119 printk(KERN_INFO "(elsa_cs: looks like the 97 model)\n");
120 for (j = 0x2f0; j > 0x100; j -= 0x10) {
121 p_dev->resource[0]->start = j;
122 if (!pcmcia_request_io(p_dev))
123 return 0;
126 return -ENODEV;
129 static int __devinit elsa_cs_config(struct pcmcia_device *link)
131 int i;
132 IsdnCard_t icard;
134 dev_dbg(&link->dev, "elsa_config(0x%p)\n", link);
136 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
138 i = pcmcia_loop_config(link, elsa_cs_configcheck, NULL);
139 if (i != 0)
140 goto failed;
142 if (!link->irq)
143 goto failed;
145 i = pcmcia_enable_device(link);
146 if (i != 0)
147 goto failed;
149 icard.para[0] = link->irq;
150 icard.para[1] = link->resource[0]->start;
151 icard.protocol = protocol;
152 icard.typ = ISDN_CTYPE_ELSA_PCMCIA;
154 i = hisax_init_pcmcia(link, &(((local_info_t *)link->priv)->busy), &icard);
155 if (i < 0) {
156 printk(KERN_ERR "elsa_cs: failed to initialize Elsa "
157 "PCMCIA %d with %pR\n", i, link->resource[0]);
158 elsa_cs_release(link);
159 } else
160 ((local_info_t *)link->priv)->cardnr = i;
162 return 0;
163 failed:
164 elsa_cs_release(link);
165 return -ENODEV;
166 } /* elsa_cs_config */
168 static void elsa_cs_release(struct pcmcia_device *link)
170 local_info_t *local = link->priv;
172 dev_dbg(&link->dev, "elsa_cs_release(0x%p)\n", link);
174 if (local) {
175 if (local->cardnr >= 0) {
176 /* no unregister function with hisax */
177 HiSax_closecard(local->cardnr);
181 pcmcia_disable_device(link);
182 } /* elsa_cs_release */
184 static int elsa_suspend(struct pcmcia_device *link)
186 local_info_t *dev = link->priv;
188 dev->busy = 1;
190 return 0;
193 static int elsa_resume(struct pcmcia_device *link)
195 local_info_t *dev = link->priv;
197 dev->busy = 0;
199 return 0;
202 static const struct pcmcia_device_id elsa_ids[] = {
203 PCMCIA_DEVICE_PROD_ID12("ELSA AG (Aachen, Germany)", "MicroLink ISDN/MC ", 0x983de2c4, 0x333ba257),
204 PCMCIA_DEVICE_PROD_ID12("ELSA GmbH, Aachen", "MicroLink ISDN/MC ", 0x639e5718, 0x333ba257),
205 PCMCIA_DEVICE_NULL
207 MODULE_DEVICE_TABLE(pcmcia, elsa_ids);
209 static struct pcmcia_driver elsa_cs_driver = {
210 .owner = THIS_MODULE,
211 .name = "elsa_cs",
212 .probe = elsa_cs_probe,
213 .remove = __devexit_p(elsa_cs_detach),
214 .id_table = elsa_ids,
215 .suspend = elsa_suspend,
216 .resume = elsa_resume,
219 static int __init init_elsa_cs(void)
221 return pcmcia_register_driver(&elsa_cs_driver);
224 static void __exit exit_elsa_cs(void)
226 pcmcia_unregister_driver(&elsa_cs_driver);
229 module_init(init_elsa_cs);
230 module_exit(exit_elsa_cs);