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/cs.h>
24 #include <pcmcia/cistpl.h>
25 #include <pcmcia/ciscode.h>
26 #include <pcmcia/ds.h>
27 #include <pcmcia/cisreg.h>
29 #include <linux/skbuff.h>
30 #include <linux/capi.h>
31 #include <linux/b1lli.h>
32 #include <linux/b1pcmcia.h>
34 /*====================================================================*/
36 MODULE_DESCRIPTION("CAPI4Linux: PCMCIA client driver for AVM B1/M1/M2");
37 MODULE_AUTHOR("Carsten Paeth");
38 MODULE_LICENSE("GPL");
40 /*====================================================================*/
43 The event() function is this driver's Card Services event handler.
44 It will be called by Card Services when an appropriate card status
45 event is received. The config() and release() entry points are
46 used to configure or release a socket, in response to card insertion
47 and ejection events. They are invoked from the skeleton event
51 static int avmcs_config(struct pcmcia_device *link);
52 static void avmcs_release(struct pcmcia_device *link);
55 The attach() and detach() entry points are used to create and destroy
56 "instances" of the driver, where each instance represents everything
57 needed to manage one actual PCMCIA card.
60 static void avmcs_detach(struct pcmcia_device *p_dev);
62 /*======================================================================
64 avmcs_attach() creates an "instance" of the driver, allocating
65 local data structures for one device. The device is registered
68 The dev_link structure is initialized, but we don't actually
69 configure the card at this point -- we wait until we receive a
72 ======================================================================*/
74 static int avmcs_probe(struct pcmcia_device *p_dev)
77 /* The io structure describes IO port mapping */
78 p_dev->io.NumPorts1 = 16;
79 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
80 p_dev->io.NumPorts2 = 0;
82 /* General socket configuration */
83 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
84 p_dev->conf.IntType = INT_MEMORY_AND_IO;
85 p_dev->conf.ConfigIndex = 1;
86 p_dev->conf.Present = PRESENT_OPTION;
88 return avmcs_config(p_dev);
91 /*======================================================================
93 This deletes a driver "instance". The device is de-registered
94 with Card Services. If it has been released, all local data
95 structures are freed. Otherwise, the structures will be freed
96 when the device is released.
98 ======================================================================*/
100 static void avmcs_detach(struct pcmcia_device *link)
105 /*======================================================================
107 avmcs_config() is scheduled to run after a CARD_INSERTION event
108 is received, to configure the PCMCIA socket, and to make the
109 ethernet device available to the system.
111 ======================================================================*/
113 static int avmcs_configcheck(struct pcmcia_device *p_dev,
114 cistpl_cftable_entry_t *cf,
115 cistpl_cftable_entry_t *dflt,
119 if (cf->io.nwin <= 0)
122 p_dev->io.BasePort1 = cf->io.win[0].base;
123 p_dev->io.NumPorts1 = cf->io.win[0].len;
124 p_dev->io.NumPorts2 = 0;
125 printk(KERN_INFO "avm_cs: testing i/o %#x-%#x\n",
127 p_dev->io.BasePort1+p_dev->io.NumPorts1-1);
128 return pcmcia_request_io(p_dev, &p_dev->io);
131 static int avmcs_config(struct pcmcia_device *link)
136 int (*addcard)(unsigned int port, unsigned irq);
139 if (link->prod_id[1])
140 strlcpy(devname, link->prod_id[1], sizeof(devname));
145 if (pcmcia_loop_config(link, avmcs_configcheck, NULL))
151 pcmcia_disable_device(link);
156 * configure the PCMCIA socket
158 i = pcmcia_request_configuration(link, &link->conf);
160 pcmcia_disable_device(link);
167 char *s = strrchr(devname, ' ');
171 if (strcmp("M1", s) == 0) {
172 cardtype = AVM_CARDTYPE_M1;
173 } else if (strcmp("M2", s) == 0) {
174 cardtype = AVM_CARDTYPE_M2;
176 cardtype = AVM_CARDTYPE_B1;
179 cardtype = AVM_CARDTYPE_B1;
181 /* If any step failed, release any partially configured state */
189 case AVM_CARDTYPE_M1: addcard = b1pcmcia_addcard_m1; break;
190 case AVM_CARDTYPE_M2: addcard = b1pcmcia_addcard_m2; break;
192 case AVM_CARDTYPE_B1: addcard = b1pcmcia_addcard_b1; break;
194 if ((i = (*addcard)(link->io.BasePort1, link->irq)) < 0) {
195 dev_err(&link->dev, "avm_cs: failed to add AVM-Controller at i/o %#x, irq %d\n",
196 link->io.BasePort1, link->irq);
204 /*======================================================================
206 After a card is removed, avmcs_release() will unregister the net
207 device, and release the PCMCIA configuration. If the device is
208 still open, this will be postponed until it is closed.
210 ======================================================================*/
212 static void avmcs_release(struct pcmcia_device *link)
214 b1pcmcia_delcard(link->io.BasePort1, link->irq);
215 pcmcia_disable_device(link);
216 } /* avmcs_release */
219 static struct pcmcia_device_id avmcs_ids[] = {
220 PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN-Controller B1", 0x95d42008, 0x845dc335),
221 PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M1", 0x95d42008, 0x81e10430),
222 PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M2", 0x95d42008, 0x18e8558a),
225 MODULE_DEVICE_TABLE(pcmcia, avmcs_ids);
227 static struct pcmcia_driver avmcs_driver = {
228 .owner = THIS_MODULE,
232 .probe = avmcs_probe,
233 .remove = avmcs_detach,
234 .id_table = avmcs_ids,
237 static int __init avmcs_init(void)
239 return pcmcia_register_driver(&avmcs_driver);
242 static void __exit avmcs_exit(void)
244 pcmcia_unregister_driver(&avmcs_driver);
247 module_init(avmcs_init);
248 module_exit(avmcs_exit);