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_types.h>
24 #include <pcmcia/cs.h>
25 #include <pcmcia/cistpl.h>
26 #include <pcmcia/ciscode.h>
27 #include <pcmcia/ds.h>
28 #include <pcmcia/cisreg.h>
30 #include <linux/skbuff.h>
31 #include <linux/capi.h>
32 #include <linux/b1lli.h>
33 #include <linux/b1pcmcia.h>
35 /*====================================================================*/
37 MODULE_DESCRIPTION("CAPI4Linux: PCMCIA client driver for AVM B1/M1/M2");
38 MODULE_AUTHOR("Carsten Paeth");
39 MODULE_LICENSE("GPL");
41 /*====================================================================*/
44 The event() function is this driver's Card Services event handler.
45 It will be called by Card Services when an appropriate card status
46 event is received. The config() and release() entry points are
47 used to configure or release a socket, in response to card insertion
48 and ejection events. They are invoked from the skeleton event
52 static int avmcs_config(struct pcmcia_device *link);
53 static void avmcs_release(struct pcmcia_device *link);
56 The attach() and detach() entry points are used to create and destroy
57 "instances" of the driver, where each instance represents everything
58 needed to manage one actual PCMCIA card.
61 static void avmcs_detach(struct pcmcia_device *p_dev);
63 /*======================================================================
65 avmcs_attach() creates an "instance" of the driver, allocating
66 local data structures for one device. The device is registered
69 The dev_link structure is initialized, but we don't actually
70 configure the card at this point -- we wait until we receive a
73 ======================================================================*/
75 static int avmcs_probe(struct pcmcia_device *p_dev)
78 /* The io structure describes IO port mapping */
79 p_dev->io.NumPorts1 = 16;
80 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
81 p_dev->io.NumPorts2 = 0;
83 /* General socket configuration */
84 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
85 p_dev->conf.IntType = INT_MEMORY_AND_IO;
86 p_dev->conf.ConfigIndex = 1;
87 p_dev->conf.Present = PRESENT_OPTION;
89 return avmcs_config(p_dev);
92 /*======================================================================
94 This deletes a driver "instance". The device is de-registered
95 with Card Services. If it has been released, all local data
96 structures are freed. Otherwise, the structures will be freed
97 when the device is released.
99 ======================================================================*/
101 static void avmcs_detach(struct pcmcia_device *link)
106 /*======================================================================
108 avmcs_config() is scheduled to run after a CARD_INSERTION event
109 is received, to configure the PCMCIA socket, and to make the
110 ethernet device available to the system.
112 ======================================================================*/
114 static int avmcs_configcheck(struct pcmcia_device *p_dev,
115 cistpl_cftable_entry_t *cf,
116 cistpl_cftable_entry_t *dflt,
120 if (cf->io.nwin <= 0)
123 p_dev->io.BasePort1 = cf->io.win[0].base;
124 p_dev->io.NumPorts1 = cf->io.win[0].len;
125 p_dev->io.NumPorts2 = 0;
126 printk(KERN_INFO "avm_cs: testing i/o %#x-%#x\n",
128 p_dev->io.BasePort1+p_dev->io.NumPorts1-1);
129 return pcmcia_request_io(p_dev, &p_dev->io);
132 static int avmcs_config(struct pcmcia_device *link)
137 int (*addcard)(unsigned int port, unsigned irq);
140 if (link->prod_id[1])
141 strlcpy(devname, link->prod_id[1], sizeof(devname));
146 if (pcmcia_loop_config(link, avmcs_configcheck, NULL))
152 pcmcia_disable_device(link);
157 * configure the PCMCIA socket
159 i = pcmcia_request_configuration(link, &link->conf);
161 pcmcia_disable_device(link);
168 char *s = strrchr(devname, ' ');
172 if (strcmp("M1", s) == 0) {
173 cardtype = AVM_CARDTYPE_M1;
174 } else if (strcmp("M2", s) == 0) {
175 cardtype = AVM_CARDTYPE_M2;
177 cardtype = AVM_CARDTYPE_B1;
180 cardtype = AVM_CARDTYPE_B1;
182 /* If any step failed, release any partially configured state */
190 case AVM_CARDTYPE_M1: addcard = b1pcmcia_addcard_m1; break;
191 case AVM_CARDTYPE_M2: addcard = b1pcmcia_addcard_m2; break;
193 case AVM_CARDTYPE_B1: addcard = b1pcmcia_addcard_b1; break;
195 if ((i = (*addcard)(link->io.BasePort1, link->irq)) < 0) {
196 dev_err(&link->dev, "avm_cs: failed to add AVM-Controller at i/o %#x, irq %d\n",
197 link->io.BasePort1, link->irq);
205 /*======================================================================
207 After a card is removed, avmcs_release() will unregister the net
208 device, and release the PCMCIA configuration. If the device is
209 still open, this will be postponed until it is closed.
211 ======================================================================*/
213 static void avmcs_release(struct pcmcia_device *link)
215 b1pcmcia_delcard(link->io.BasePort1, link->irq);
216 pcmcia_disable_device(link);
217 } /* avmcs_release */
220 static struct pcmcia_device_id avmcs_ids[] = {
221 PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN-Controller B1", 0x95d42008, 0x845dc335),
222 PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M1", 0x95d42008, 0x81e10430),
223 PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M2", 0x95d42008, 0x18e8558a),
226 MODULE_DEVICE_TABLE(pcmcia, avmcs_ids);
228 static struct pcmcia_driver avmcs_driver = {
229 .owner = THIS_MODULE,
233 .probe = avmcs_probe,
234 .remove = avmcs_detach,
235 .id_table = avmcs_ids,
238 static int __init avmcs_init(void)
240 return pcmcia_register_driver(&avmcs_driver);
243 static void __exit avmcs_exit(void)
245 pcmcia_unregister_driver(&avmcs_driver);
248 module_init(avmcs_init);
249 module_exit(avmcs_exit);