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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * PCMCIA client driver for AVM A1 / Fritz!PCMCIA
3 *
4 * Author Carsten Paeth
5 * Copyright 1998-2001 by Carsten Paeth <calle@calle.in-berlin.de>
6 *
7 * This software may be used and distributed according to the terms
8 * of the GNU General Public License, incorporated herein by reference.
9 *
10 */
11
12#include <linux/module.h>
13
14
15#include <linux/kernel.h>
16#include <linux/init.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#include <linux/ptrace.h>
18#include <linux/slab.h>
19#include <linux/string.h>
20#include <asm/io.h>
21#include <asm/system.h>
22
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include <pcmcia/cs_types.h>
24#include <pcmcia/cs.h>
25#include <pcmcia/cistpl.h>
26#include <pcmcia/ds.h>
27#include "hisax_cfg.h"
28
29MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for AVM A1/Fritz!PCMCIA cards");
30MODULE_AUTHOR("Carsten Paeth");
31MODULE_LICENSE("GPL");
32
Linus Torvalds1da177e2005-04-16 15:20:36 -070033
34/*====================================================================*/
35
36/* Parameters that can be set with 'insmod' */
37
38static int isdnprot = 2;
39
40module_param(isdnprot, int, 0);
41
42/*====================================================================*/
43
44/*
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
50 handler.
51*/
52
Dominik Brodowski15b99ac2006-03-31 17:26:06 +020053static int avma1cs_config(struct pcmcia_device *link);
Dominik Brodowskifba395e2006-03-31 17:21:06 +020054static void avma1cs_release(struct pcmcia_device *link);
Linus Torvalds1da177e2005-04-16 15:20:36 -070055
56/*
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.
60*/
61
Dominik Brodowskicc3b4862005-11-14 21:23:14 +010062static void avma1cs_detach(struct pcmcia_device *p_dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -070063
Linus Torvalds1da177e2005-04-16 15:20:36 -070064
65/*
66 A linked list of "instances" of the skeleton device. Each actual
67 PCMCIA card corresponds to one device instance, and is described
Dominik Brodowskifba395e2006-03-31 17:21:06 +020068 by one struct pcmcia_device structure (defined in ds.h).
Linus Torvalds1da177e2005-04-16 15:20:36 -070069
70 You may not want to use a linked list for this -- for example, the
Dominik Brodowskifba395e2006-03-31 17:21:06 +020071 memory card driver uses an array of struct pcmcia_device pointers, where minor
Linus Torvalds1da177e2005-04-16 15:20:36 -070072 device numbers are used to derive the corresponding array index.
73*/
74
Linus Torvalds1da177e2005-04-16 15:20:36 -070075/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 A driver needs to provide a dev_node_t structure for each device
77 on a card. In some cases, there is only one device per card (for
78 example, ethernet cards, modems). In other cases, there may be
79 many actual or logical devices (SCSI adapters, memory cards with
80 multiple partitions). The dev_node_t structures need to be kept
Dominik Brodowskifba395e2006-03-31 17:21:06 +020081 in a linked list starting at the 'dev' field of a struct pcmcia_device
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 structure. We allocate them in the card's private data structure,
83 because they generally can't be allocated dynamically.
84*/
85
86typedef struct local_info_t {
87 dev_node_t node;
88} local_info_t;
89
90/*======================================================================
91
92 avma1cs_attach() creates an "instance" of the driver, allocating
93 local data structures for one device. The device is registered
94 with Card Services.
95
96 The dev_link structure is initialized, but we don't actually
97 configure the card at this point -- we wait until we receive a
98 card insertion event.
99
100======================================================================*/
101
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200102static int avma1cs_probe(struct pcmcia_device *p_dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104 local_info_t *local;
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100105
Dominik Brodowskie773cfe2009-10-24 15:50:13 +0200106 dev_dbg(&p_dev->dev, "avma1cs_attach()\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108 /* Allocate space for private device-specific data */
Burman Yan41f96932006-12-08 02:39:35 -0800109 local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
Dominik Brodowskifd238232006-03-05 10:45:09 +0100110 if (!local)
Dominik Brodowskif8cfa612005-11-14 21:25:51 +0100111 return -ENOMEM;
Dominik Brodowskifd238232006-03-05 10:45:09 +0100112
Dominik Brodowskifd238232006-03-05 10:45:09 +0100113 p_dev->priv = local;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114
115 /* The io structure describes IO port mapping */
Dominik Brodowskifd238232006-03-05 10:45:09 +0100116 p_dev->io.NumPorts1 = 16;
117 p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
118 p_dev->io.NumPorts2 = 16;
119 p_dev->io.Attributes2 = IO_DATA_PATH_WIDTH_16;
120 p_dev->io.IOAddrLines = 5;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121
122 /* Interrupt setup */
Dominik Brodowskie15c1c12009-11-28 18:12:06 +0100123 p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125 /* General socket configuration */
Dominik Brodowskifd238232006-03-05 10:45:09 +0100126 p_dev->conf.Attributes = CONF_ENABLE_IRQ;
127 p_dev->conf.IntType = INT_MEMORY_AND_IO;
128 p_dev->conf.ConfigIndex = 1;
129 p_dev->conf.Present = PRESENT_OPTION;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200131 return avma1cs_config(p_dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132} /* avma1cs_attach */
133
134/*======================================================================
135
136 This deletes a driver "instance". The device is de-registered
137 with Card Services. If it has been released, all local data
138 structures are freed. Otherwise, the structures will be freed
139 when the device is released.
140
141======================================================================*/
142
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200143static void avma1cs_detach(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144{
Dominik Brodowskie773cfe2009-10-24 15:50:13 +0200145 dev_dbg(&link->dev, "avma1cs_detach(0x%p)\n", link);
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100146 avma1cs_release(link);
147 kfree(link->priv);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148} /* avma1cs_detach */
149
150/*======================================================================
151
152 avma1cs_config() is scheduled to run after a CARD_INSERTION event
153 is received, to configure the PCMCIA socket, and to make the
154 ethernet device available to the system.
155
156======================================================================*/
157
Dominik Brodowski5fcd4da2008-07-29 08:38:55 +0200158static int avma1cs_configcheck(struct pcmcia_device *p_dev,
Dominik Brodowski8e2fc392008-08-02 15:30:31 +0200159 cistpl_cftable_entry_t *cf,
160 cistpl_cftable_entry_t *dflt,
Dominik Brodowskiad913c12008-08-02 16:12:00 +0200161 unsigned int vcc,
Dominik Brodowski8e2fc392008-08-02 15:30:31 +0200162 void *priv_data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163{
Dominik Brodowski5fcd4da2008-07-29 08:38:55 +0200164 if (cf->io.nwin <= 0)
165 return -ENODEV;
166
Dominik Brodowski5fcd4da2008-07-29 08:38:55 +0200167 p_dev->io.BasePort1 = cf->io.win[0].base;
168 p_dev->io.NumPorts1 = cf->io.win[0].len;
169 p_dev->io.NumPorts2 = 0;
170 printk(KERN_INFO "avma1_cs: testing i/o %#x-%#x\n",
171 p_dev->io.BasePort1,
172 p_dev->io.BasePort1+p_dev->io.NumPorts1-1);
173 return pcmcia_request_io(p_dev, &p_dev->io);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174}
175
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200177static int avma1cs_config(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700179 local_info_t *dev;
180 int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 char devname[128];
182 IsdnCard_t icard;
183 int busy = 0;
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200184
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 dev = link->priv;
186
Dominik Brodowskie773cfe2009-10-24 15:50:13 +0200187 dev_dbg(&link->dev, "avma1cs_config(0x%p)\n", link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188
Dominik Brodowski5fcd4da2008-07-29 08:38:55 +0200189 devname[0] = 0;
190 if (link->prod_id[1])
191 strlcpy(devname, link->prod_id[1], sizeof(devname));
192
193 if (pcmcia_loop_config(link, avma1cs_configcheck, NULL))
194 return -ENODEV;
195
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 do {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197 /*
198 * allocate an interrupt line
199 */
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200200 i = pcmcia_request_irq(link, &link->irq);
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200201 if (i != 0) {
Dominik Brodowski50db3fd2006-01-15 10:05:19 +0100202 /* undo */
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200203 pcmcia_disable_device(link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204 break;
205 }
Dominik Brodowski50db3fd2006-01-15 10:05:19 +0100206
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 /*
208 * configure the PCMCIA socket
209 */
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200210 i = pcmcia_request_configuration(link, &link->conf);
Dominik Brodowski4c89e882008-08-03 10:07:45 +0200211 if (i != 0) {
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200212 pcmcia_disable_device(link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700213 break;
214 }
215
216 } while (0);
217
218 /* At this point, the dev_node_t structure(s) should be
219 initialized and arranged in a linked list at link->dev. */
220
221 strcpy(dev->node.dev_name, "A1");
222 dev->node.major = 45;
223 dev->node.minor = 0;
Dominik Brodowskifd238232006-03-05 10:45:09 +0100224 link->dev_node = &dev->node;
Dominik Brodowskie2d40962006-03-02 00:09:29 +0100225
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226 /* If any step failed, release any partially configured state */
227 if (i != 0) {
228 avma1cs_release(link);
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200229 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 }
231
232 printk(KERN_NOTICE "avma1_cs: checking at i/o %#x, irq %d\n",
233 link->io.BasePort1, link->irq.AssignedIRQ);
234
235 icard.para[0] = link->irq.AssignedIRQ;
236 icard.para[1] = link->io.BasePort1;
237 icard.protocol = isdnprot;
238 icard.typ = ISDN_CTYPE_A1_PCMCIA;
239
240 i = hisax_init_pcmcia(link, &busy, &icard);
241 if (i < 0) {
242 printk(KERN_ERR "avma1_cs: failed to initialize AVM A1 PCMCIA %d at i/o %#x\n", i, link->io.BasePort1);
243 avma1cs_release(link);
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200244 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245 }
246 dev->node.minor = i;
247
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200248 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249} /* avma1cs_config */
250
251/*======================================================================
252
253 After a card is removed, avma1cs_release() will unregister the net
254 device, and release the PCMCIA configuration. If the device is
255 still open, this will be postponed until it is closed.
256
257======================================================================*/
258
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200259static void avma1cs_release(struct pcmcia_device *link)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260{
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100261 local_info_t *local = link->priv;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262
Dominik Brodowskie773cfe2009-10-24 15:50:13 +0200263 dev_dbg(&link->dev, "avma1cs_release(0x%p)\n", link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264
Dominik Brodowski5f2a71f2006-01-15 09:32:39 +0100265 /* now unregister function with hisax */
266 HiSax_closecard(local->node.minor);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267
Dominik Brodowskifba395e2006-03-31 17:21:06 +0200268 pcmcia_disable_device(link);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269} /* avma1cs_release */
270
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271
Dominik Brodowskic594c122005-06-27 16:28:34 -0700272static struct pcmcia_device_id avma1cs_ids[] = {
273 PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN A", 0x95d42008, 0xadc9d4bb),
274 PCMCIA_DEVICE_PROD_ID12("ISDN", "CARD", 0x8d9761c8, 0x01c5aa7b),
275 PCMCIA_DEVICE_NULL
276};
277MODULE_DEVICE_TABLE(pcmcia, avma1cs_ids);
278
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279static struct pcmcia_driver avma1cs_driver = {
280 .owner = THIS_MODULE,
281 .drv = {
282 .name = "avma1_cs",
283 },
Dominik Brodowski15b99ac2006-03-31 17:26:06 +0200284 .probe = avma1cs_probe,
Dominik Brodowskicc3b4862005-11-14 21:23:14 +0100285 .remove = avma1cs_detach,
Dominik Brodowskic594c122005-06-27 16:28:34 -0700286 .id_table = avma1cs_ids,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287};
Dominik Brodowski8661bb52006-03-02 00:02:33 +0100288
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289/*====================================================================*/
290
291static int __init init_avma1_cs(void)
292{
293 return(pcmcia_register_driver(&avma1cs_driver));
294}
295
296static void __exit exit_avma1_cs(void)
297{
298 pcmcia_unregister_driver(&avma1cs_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299}
300
301module_init(init_avma1_cs);
302module_exit(exit_avma1_cs);