1 /* $Id: avm_cs.c,v 1.4.6.3 2001/09/23 22:24:33 kai Exp $
3 * A PCMCIA client driver for AVM B1/M1/M2
5 * Copyright 1999 by Carsten Paeth <calle@calle.de>
7 * This software may be used and distributed according to the terms
8 * of the GNU General Public License, incorporated herein by reference.
12 #include <linux/module.h>
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/ptrace.h>
16 #include <linux/string.h>
17 #include <linux/tty.h>
18 #include <linux/serial.h>
19 #include <linux/major.h>
21 #include <asm/system.h>
23 #include <pcmcia/cistpl.h>
24 #include <pcmcia/ciscode.h>
25 #include <pcmcia/ds.h>
26 #include <pcmcia/cisreg.h>
28 #include <linux/skbuff.h>
29 #include <linux/capi.h>
30 #include <linux/b1lli.h>
31 #include <linux/b1pcmcia.h>
33 /*====================================================================*/
35 MODULE_DESCRIPTION("CAPI4Linux: PCMCIA client driver for AVM B1/M1/M2");
36 MODULE_AUTHOR("Carsten Paeth");
37 MODULE_LICENSE("GPL");
39 /*====================================================================*/
42 The event() function is this driver's Card Services event handler.
43 It will be called by Card Services when an appropriate card status
44 event is received. The config() and release() entry points are
45 used to configure or release a socket, in response to card insertion
46 and ejection events. They are invoked from the skeleton event
50 static int avmcs_config(struct pcmcia_device
*link
);
51 static void avmcs_release(struct pcmcia_device
*link
);
54 The attach() and detach() entry points are used to create and destroy
55 "instances" of the driver, where each instance represents everything
56 needed to manage one actual PCMCIA card.
59 static void avmcs_detach(struct pcmcia_device
*p_dev
);
61 /*======================================================================
63 avmcs_attach() creates an "instance" of the driver, allocating
64 local data structures for one device. The device is registered
67 The dev_link structure is initialized, but we don't actually
68 configure the card at this point -- we wait until we receive a
71 ======================================================================*/
73 static int avmcs_probe(struct pcmcia_device
*p_dev
)
75 /* General socket configuration */
76 p_dev
->config_flags
|= CONF_ENABLE_IRQ
| CONF_AUTO_SET_IO
;
77 p_dev
->config_index
= 1;
78 p_dev
->config_regs
= PRESENT_OPTION
;
80 return avmcs_config(p_dev
);
83 /*======================================================================
85 This deletes a driver "instance". The device is de-registered
86 with Card Services. If it has been released, all local data
87 structures are freed. Otherwise, the structures will be freed
88 when the device is released.
90 ======================================================================*/
92 static void avmcs_detach(struct pcmcia_device
*link
)
97 /*======================================================================
99 avmcs_config() is scheduled to run after a CARD_INSERTION event
100 is received, to configure the PCMCIA socket, and to make the
101 ethernet device available to the system.
103 ======================================================================*/
105 static int avmcs_configcheck(struct pcmcia_device
*p_dev
, void *priv_data
)
107 p_dev
->resource
[0]->end
= 16;
108 p_dev
->resource
[0]->flags
&= ~IO_DATA_PATH_WIDTH
;
109 p_dev
->resource
[0]->flags
|= IO_DATA_PATH_WIDTH_8
;
111 return pcmcia_request_io(p_dev
);
114 static int avmcs_config(struct pcmcia_device
*link
)
119 int (*addcard
)(unsigned int port
, unsigned irq
);
122 if (link
->prod_id
[1])
123 strlcpy(devname
, link
->prod_id
[1], sizeof(devname
));
128 if (pcmcia_loop_config(link
, avmcs_configcheck
, NULL
))
134 pcmcia_disable_device(link
);
139 * configure the PCMCIA socket
141 i
= pcmcia_enable_device(link
);
143 pcmcia_disable_device(link
);
150 char *s
= strrchr(devname
, ' ');
154 if (strcmp("M1", s
) == 0) {
155 cardtype
= AVM_CARDTYPE_M1
;
156 } else if (strcmp("M2", s
) == 0) {
157 cardtype
= AVM_CARDTYPE_M2
;
159 cardtype
= AVM_CARDTYPE_B1
;
162 cardtype
= AVM_CARDTYPE_B1
;
164 /* If any step failed, release any partially configured state */
172 case AVM_CARDTYPE_M1
: addcard
= b1pcmcia_addcard_m1
; break;
173 case AVM_CARDTYPE_M2
: addcard
= b1pcmcia_addcard_m2
; break;
175 case AVM_CARDTYPE_B1
: addcard
= b1pcmcia_addcard_b1
; break;
177 if ((i
= (*addcard
)(link
->resource
[0]->start
, link
->irq
)) < 0) {
179 "avm_cs: failed to add AVM-Controller at i/o %#x, irq %d\n",
180 (unsigned int) link
->resource
[0]->start
, link
->irq
);
188 /*======================================================================
190 After a card is removed, avmcs_release() will unregister the net
191 device, and release the PCMCIA configuration. If the device is
192 still open, this will be postponed until it is closed.
194 ======================================================================*/
196 static void avmcs_release(struct pcmcia_device
*link
)
198 b1pcmcia_delcard(link
->resource
[0]->start
, link
->irq
);
199 pcmcia_disable_device(link
);
200 } /* avmcs_release */
203 static struct pcmcia_device_id avmcs_ids
[] = {
204 PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN-Controller B1", 0x95d42008, 0x845dc335),
205 PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M1", 0x95d42008, 0x81e10430),
206 PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M2", 0x95d42008, 0x18e8558a),
209 MODULE_DEVICE_TABLE(pcmcia
, avmcs_ids
);
211 static struct pcmcia_driver avmcs_driver
= {
212 .owner
= THIS_MODULE
,
216 .probe
= avmcs_probe
,
217 .remove
= avmcs_detach
,
218 .id_table
= avmcs_ids
,
221 static int __init
avmcs_init(void)
223 return pcmcia_register_driver(&avmcs_driver
);
226 static void __exit
avmcs_exit(void)
228 pcmcia_unregister_driver(&avmcs_driver
);
231 module_init(avmcs_init
);
232 module_exit(avmcs_exit
);