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/slab.h>
17 #include <linux/string.h>
18 #include <linux/tty.h>
19 #include <linux/serial.h>
20 #include <linux/major.h>
22 #include <asm/system.h>
24 #include <pcmcia/cs_types.h>
25 #include <pcmcia/cs.h>
26 #include <pcmcia/cistpl.h>
27 #include <pcmcia/ciscode.h>
28 #include <pcmcia/ds.h>
29 #include <pcmcia/cisreg.h>
31 #include <linux/skbuff.h>
32 #include <linux/capi.h>
33 #include <linux/b1lli.h>
34 #include <linux/b1pcmcia.h>
36 /*====================================================================*/
38 MODULE_DESCRIPTION("CAPI4Linux: PCMCIA client driver for AVM B1/M1/M2");
39 MODULE_AUTHOR("Carsten Paeth");
40 MODULE_LICENSE("GPL");
42 /*====================================================================*/
45 The event() function is this driver's Card Services event handler.
46 It will be called by Card Services when an appropriate card status
47 event is received. The config() and release() entry points are
48 used to configure or release a socket, in response to card insertion
49 and ejection events. They are invoked from the skeleton event
53 static int avmcs_config(struct pcmcia_device *link);
54 static void avmcs_release(struct pcmcia_device *link);
57 The attach() and detach() entry points are used to create and destroy
58 "instances" of the driver, where each instance represents everything
59 needed to manage one actual PCMCIA card.
62 static void avmcs_detach(struct pcmcia_device *p_dev);
64 /*======================================================================
66 avmcs_attach() creates an "instance" of the driver, allocating
67 local data structures for one device. The device is registered
70 The dev_link structure is initialized, but we don't actually
71 configure the card at this point -- we wait until we receive a
74 ======================================================================*/
76 static int avmcs_probe(struct pcmcia_device *p_dev)
79 /* The io structure describes IO port mapping */
80 p_dev->io.NumPorts1 = 16;
81 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
82 p_dev->io.NumPorts2 = 0;
84 /* General socket configuration */
85 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
86 p_dev->conf.IntType = INT_MEMORY_AND_IO;
87 p_dev->conf.ConfigIndex = 1;
88 p_dev->conf.Present = PRESENT_OPTION;
90 return avmcs_config(p_dev);
93 /*======================================================================
95 This deletes a driver "instance". The device is de-registered
96 with Card Services. If it has been released, all local data
97 structures are freed. Otherwise, the structures will be freed
98 when the device is released.
100 ======================================================================*/
102 static void avmcs_detach(struct pcmcia_device *link)
107 /*======================================================================
109 avmcs_config() is scheduled to run after a CARD_INSERTION event
110 is received, to configure the PCMCIA socket, and to make the
111 ethernet device available to the system.
113 ======================================================================*/
115 static int avmcs_configcheck(struct pcmcia_device *p_dev,
116 cistpl_cftable_entry_t *cf,
117 cistpl_cftable_entry_t *dflt,
121 if (cf->io.nwin <= 0)
124 p_dev->io.BasePort1 = cf->io.win[0].base;
125 p_dev->io.NumPorts1 = cf->io.win[0].len;
126 p_dev->io.NumPorts2 = 0;
127 printk(KERN_INFO "avm_cs: testing i/o %#x-%#x\n",
129 p_dev->io.BasePort1+p_dev->io.NumPorts1-1);
130 return pcmcia_request_io(p_dev, &p_dev->io);
133 static int avmcs_config(struct pcmcia_device *link)
138 int (*addcard)(unsigned int port, unsigned irq);
141 if (link->prod_id[1])
142 strlcpy(devname, link->prod_id[1], sizeof(devname));
147 if (pcmcia_loop_config(link, avmcs_configcheck, NULL))
153 pcmcia_disable_device(link);
158 * configure the PCMCIA socket
160 i = pcmcia_request_configuration(link, &link->conf);
162 pcmcia_disable_device(link);
169 char *s = strrchr(devname, ' ');
173 if (strcmp("M1", s) == 0) {
174 cardtype = AVM_CARDTYPE_M1;
175 } else if (strcmp("M2", s) == 0) {
176 cardtype = AVM_CARDTYPE_M2;
178 cardtype = AVM_CARDTYPE_B1;
181 cardtype = AVM_CARDTYPE_B1;
183 /* If any step failed, release any partially configured state */
191 case AVM_CARDTYPE_M1: addcard = b1pcmcia_addcard_m1; break;
192 case AVM_CARDTYPE_M2: addcard = b1pcmcia_addcard_m2; break;
194 case AVM_CARDTYPE_B1: addcard = b1pcmcia_addcard_b1; break;
196 if ((i = (*addcard)(link->io.BasePort1, link->irq)) < 0) {
197 dev_err(&link->dev, "avm_cs: failed to add AVM-Controller at i/o %#x, irq %d\n",
198 link->io.BasePort1, link->irq);
206 /*======================================================================
208 After a card is removed, avmcs_release() will unregister the net
209 device, and release the PCMCIA configuration. If the device is
210 still open, this will be postponed until it is closed.
212 ======================================================================*/
214 static void avmcs_release(struct pcmcia_device *link)
216 b1pcmcia_delcard(link->io.BasePort1, link->irq);
217 pcmcia_disable_device(link);
218 } /* avmcs_release */
221 static struct pcmcia_device_id avmcs_ids[] = {
222 PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN-Controller B1", 0x95d42008, 0x845dc335),
223 PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M1", 0x95d42008, 0x81e10430),
224 PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M2", 0x95d42008, 0x18e8558a),
227 MODULE_DEVICE_TABLE(pcmcia, avmcs_ids);
229 static struct pcmcia_driver avmcs_driver = {
230 .owner = THIS_MODULE,
234 .probe = avmcs_probe,
235 .remove = avmcs_detach,
236 .id_table = avmcs_ids,
239 static int __init avmcs_init(void)
241 return pcmcia_register_driver(&avmcs_driver);
244 static void __exit avmcs_exit(void)
246 pcmcia_unregister_driver(&avmcs_driver);
249 module_init(avmcs_init);
250 module_exit(avmcs_exit);