1 /*
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>
17 #include <linux/ptrace.h>
18 #include <linux/slab.h>
19 #include <linux/string.h>
20 #include <asm/io.h>
21
22 #include <pcmcia/cistpl.h>
23 #include <pcmcia/ds.h>
24 #include "hisax_cfg.h"
25
26 MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for AVM A1/Fritz!PCMCIA cards");
27 MODULE_AUTHOR("Carsten Paeth");
28 MODULE_LICENSE("GPL");
29
30
31 /*====================================================================*/
32
33 /* Parameters that can be set with 'insmod' */
34
35 static int isdnprot = 2;
36
37 module_param(isdnprot, int, 0);
38
39 /*====================================================================*/
40
41 static int avma1cs_config(struct pcmcia_device *link);
42 static void avma1cs_release(struct pcmcia_device *link);
43 static void avma1cs_detach(struct pcmcia_device *p_dev);
44
avma1cs_probe(struct pcmcia_device * p_dev)45 static int avma1cs_probe(struct pcmcia_device *p_dev)
46 {
47 dev_dbg(&p_dev->dev, "avma1cs_attach()\n");
48
49 /* General socket configuration */
50 p_dev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
51 p_dev->config_index = 1;
52 p_dev->config_regs = PRESENT_OPTION;
53
54 return avma1cs_config(p_dev);
55 } /* avma1cs_attach */
56
avma1cs_detach(struct pcmcia_device * link)57 static void avma1cs_detach(struct pcmcia_device *link)
58 {
59 dev_dbg(&link->dev, "avma1cs_detach(0x%p)\n", link);
60 avma1cs_release(link);
61 kfree(link->priv);
62 } /* avma1cs_detach */
63
avma1cs_configcheck(struct pcmcia_device * p_dev,void * priv_data)64 static int avma1cs_configcheck(struct pcmcia_device *p_dev, void *priv_data)
65 {
66 p_dev->resource[0]->end = 16;
67 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
68 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
69 p_dev->io_lines = 5;
70
71 return pcmcia_request_io(p_dev);
72 }
73
74
avma1cs_config(struct pcmcia_device * link)75 static int avma1cs_config(struct pcmcia_device *link)
76 {
77 int i = -1;
78 char devname[128];
79 IsdnCard_t icard;
80 int busy = 0;
81
82 dev_dbg(&link->dev, "avma1cs_config(0x%p)\n", link);
83
84 devname[0] = 0;
85 if (link->prod_id[1])
86 strlcpy(devname, link->prod_id[1], sizeof(devname));
87
88 if (pcmcia_loop_config(link, avma1cs_configcheck, NULL))
89 return -ENODEV;
90
91 do {
92 /*
93 * allocate an interrupt line
94 */
95 if (!link->irq) {
96 /* undo */
97 pcmcia_disable_device(link);
98 break;
99 }
100
101 /*
102 * configure the PCMCIA socket
103 */
104 i = pcmcia_enable_device(link);
105 if (i != 0) {
106 pcmcia_disable_device(link);
107 break;
108 }
109
110 } while (0);
111
112 /* If any step failed, release any partially configured state */
113 if (i != 0) {
114 avma1cs_release(link);
115 return -ENODEV;
116 }
117
118 icard.para[0] = link->irq;
119 icard.para[1] = link->resource[0]->start;
120 icard.protocol = isdnprot;
121 icard.typ = ISDN_CTYPE_A1_PCMCIA;
122
123 i = hisax_init_pcmcia(link, &busy, &icard);
124 if (i < 0) {
125 printk(KERN_ERR "avma1_cs: failed to initialize AVM A1 "
126 "PCMCIA %d at i/o %#x\n", i,
127 (unsigned int) link->resource[0]->start);
128 avma1cs_release(link);
129 return -ENODEV;
130 }
131 link->priv = (void *) (unsigned long) i;
132
133 return 0;
134 } /* avma1cs_config */
135
avma1cs_release(struct pcmcia_device * link)136 static void avma1cs_release(struct pcmcia_device *link)
137 {
138 unsigned long minor = (unsigned long) link->priv;
139
140 dev_dbg(&link->dev, "avma1cs_release(0x%p)\n", link);
141
142 /* now unregister function with hisax */
143 HiSax_closecard(minor);
144
145 pcmcia_disable_device(link);
146 } /* avma1cs_release */
147
148 static const struct pcmcia_device_id avma1cs_ids[] = {
149 PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN A", 0x95d42008, 0xadc9d4bb),
150 PCMCIA_DEVICE_PROD_ID12("ISDN", "CARD", 0x8d9761c8, 0x01c5aa7b),
151 PCMCIA_DEVICE_NULL
152 };
153 MODULE_DEVICE_TABLE(pcmcia, avma1cs_ids);
154
155 static struct pcmcia_driver avma1cs_driver = {
156 .owner = THIS_MODULE,
157 .name = "avma1_cs",
158 .probe = avma1cs_probe,
159 .remove = avma1cs_detach,
160 .id_table = avma1cs_ids,
161 };
162 module_pcmcia_driver(avma1cs_driver);
163