1 /* $Id: teles_cs.c,v 1.1.2.2 2004/01/25 15:07:06 keil Exp $ */
2 /*======================================================================
4 A teles S0 PCMCIA client driver
6 Based on skeleton by David Hinds, dhinds@allegro.stanford.edu
7 Written by Christof Petig, christof.petig@wtal.de
9 Also inspired by ELSA PCMCIA driver
10 by Klaus Lichtenwalder <Lichtenwalder@ACM.org>
12 Extensions to new hisax_pcmcia by Karsten Keil
14 minor changes to be compatible with kernel 2.4.x
15 by Jan.Schubert@GMX.li
17 ======================================================================*/
19 #include <linux/kernel.h>
20 #include <linux/module.h>
21 #include <linux/init.h>
22 #include <linux/ptrace.h>
23 #include <linux/slab.h>
24 #include <linux/string.h>
25 #include <linux/timer.h>
26 #include <linux/ioport.h>
28 #include <asm/system.h>
30 #include <pcmcia/cistpl.h>
31 #include <pcmcia/cisreg.h>
32 #include <pcmcia/ds.h>
33 #include "hisax_cfg.h"
35 MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for Teles PCMCIA cards");
36 MODULE_AUTHOR("Christof Petig, christof.petig@wtal.de, Karsten Keil, kkeil@suse.de");
37 MODULE_LICENSE("GPL");
40 /*====================================================================*/
42 /* Parameters that can be set with 'insmod' */
44 static int protocol = 2; /* EURO-ISDN Default */
45 module_param(protocol, int, 0);
47 static int teles_cs_config(struct pcmcia_device *link) __devinit;
48 static void teles_cs_release(struct pcmcia_device *link);
49 static void teles_detach(struct pcmcia_device *p_dev) __devexit;
51 typedef struct local_info_t {
52 struct pcmcia_device *p_dev;
57 static int __devinit teles_probe(struct pcmcia_device *link)
61 dev_dbg(&link->dev, "teles_attach()\n");
63 /* Allocate space for private device-specific data */
64 local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
65 if (!local) return -ENOMEM;
71 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
73 return teles_cs_config(link);
76 static void __devexit teles_detach(struct pcmcia_device *link)
78 local_info_t *info = link->priv;
80 dev_dbg(&link->dev, "teles_detach(0x%p)\n", link);
83 teles_cs_release(link);
88 static int teles_cs_configcheck(struct pcmcia_device *p_dev, void *priv_data)
93 p_dev->resource[0]->end = 96;
94 p_dev->resource[0]->flags &= IO_DATA_PATH_WIDTH;
95 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
97 if ((p_dev->resource[0]->end) && p_dev->resource[0]->start) {
98 printk(KERN_INFO "(teles_cs: looks like the 96 model)\n");
99 if (!pcmcia_request_io(p_dev))
102 printk(KERN_INFO "(teles_cs: looks like the 97 model)\n");
103 for (j = 0x2f0; j > 0x100; j -= 0x10) {
104 p_dev->resource[0]->start = j;
105 if (!pcmcia_request_io(p_dev))
112 static int __devinit teles_cs_config(struct pcmcia_device *link)
117 dev_dbg(&link->dev, "teles_config(0x%p)\n", link);
119 i = pcmcia_loop_config(link, teles_cs_configcheck, NULL);
126 i = pcmcia_enable_device(link);
130 icard.para[0] = link->irq;
131 icard.para[1] = link->resource[0]->start;
132 icard.protocol = protocol;
133 icard.typ = ISDN_CTYPE_TELESPCMCIA;
135 i = hisax_init_pcmcia(link, &(((local_info_t *)link->priv)->busy), &icard);
137 printk(KERN_ERR "teles_cs: failed to initialize Teles PCMCIA %d at i/o %#x\n",
138 i, (unsigned int) link->resource[0]->start);
139 teles_cs_release(link);
143 ((local_info_t *)link->priv)->cardnr = i;
147 teles_cs_release(link);
149 } /* teles_cs_config */
151 static void teles_cs_release(struct pcmcia_device *link)
153 local_info_t *local = link->priv;
155 dev_dbg(&link->dev, "teles_cs_release(0x%p)\n", link);
158 if (local->cardnr >= 0) {
159 /* no unregister function with hisax */
160 HiSax_closecard(local->cardnr);
164 pcmcia_disable_device(link);
165 } /* teles_cs_release */
167 static int teles_suspend(struct pcmcia_device *link)
169 local_info_t *dev = link->priv;
176 static int teles_resume(struct pcmcia_device *link)
178 local_info_t *dev = link->priv;
186 static const struct pcmcia_device_id teles_ids[] = {
187 PCMCIA_DEVICE_PROD_ID12("TELES", "S0/PC", 0x67b50eae, 0xe9e70119),
190 MODULE_DEVICE_TABLE(pcmcia, teles_ids);
192 static struct pcmcia_driver teles_cs_driver = {
193 .owner = THIS_MODULE,
195 .probe = teles_probe,
196 .remove = __devexit_p(teles_detach),
197 .id_table = teles_ids,
198 .suspend = teles_suspend,
199 .resume = teles_resume,
202 static int __init init_teles_cs(void)
204 return pcmcia_register_driver(&teles_cs_driver);
207 static void __exit exit_teles_cs(void)
209 pcmcia_unregister_driver(&teles_cs_driver);
212 module_init(init_teles_cs);
213 module_exit(exit_teles_cs);