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 #include <asm/system.h>
22
23 #include <pcmcia/cistpl.h>
24 #include <pcmcia/ds.h>
25 #include "hisax_cfg.h"
26
27 MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for AVM A1/Fritz!PCMCIA cards");
28 MODULE_AUTHOR("Carsten Paeth");
29 MODULE_LICENSE("GPL");
30
31
32 /*====================================================================*/
33
34 /* Parameters that can be set with 'insmod' */
35
36 static int isdnprot = 2;
37
38 module_param(isdnprot, int, 0);
39
40 /*====================================================================*/
41
42 static int avma1cs_config(struct pcmcia_device *link) __devinit ;
43 static void avma1cs_release(struct pcmcia_device *link);
44 static void avma1cs_detach(struct pcmcia_device *p_dev) __devexit ;
45
avma1cs_probe(struct pcmcia_device * p_dev)46 static int __devinit avma1cs_probe(struct pcmcia_device *p_dev)
47 {
48 dev_dbg(&p_dev->dev, "avma1cs_attach()\n");
49
50 /* General socket configuration */
51 p_dev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
52 p_dev->config_index = 1;
53 p_dev->config_regs = PRESENT_OPTION;
54
55 return avma1cs_config(p_dev);
56 } /* avma1cs_attach */
57
avma1cs_detach(struct pcmcia_device * link)58 static void __devexit avma1cs_detach(struct pcmcia_device *link)
59 {
60 dev_dbg(&link->dev, "avma1cs_detach(0x%p)\n", link);
61 avma1cs_release(link);
62 kfree(link->priv);
63 } /* avma1cs_detach */
64
avma1cs_configcheck(struct pcmcia_device * p_dev,void * priv_data)65 static int avma1cs_configcheck(struct pcmcia_device *p_dev, void *priv_data)
66 {
67 p_dev->resource[0]->end = 16;
68 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
69 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
70 p_dev->io_lines = 5;
71
72 return pcmcia_request_io(p_dev);
73 }
74
75
avma1cs_config(struct pcmcia_device * link)76 static int __devinit avma1cs_config(struct pcmcia_device *link)
77 {
78 int i = -1;
79 char devname[128];
80 IsdnCard_t icard;
81 int busy = 0;
82
83 dev_dbg(&link->dev, "avma1cs_config(0x%p)\n", link);
84
85 devname[0] = 0;
86 if (link->prod_id[1])
87 strlcpy(devname, link->prod_id[1], sizeof(devname));
88
89 if (pcmcia_loop_config(link, avma1cs_configcheck, NULL))
90 return -ENODEV;
91
92 do {
93 /*
94 * allocate an interrupt line
95 */
96 if (!link->irq) {
97 /* undo */
98 pcmcia_disable_device(link);
99 break;
100 }
101
102 /*
103 * configure the PCMCIA socket
104 */
105 i = pcmcia_enable_device(link);
106 if (i != 0) {
107 pcmcia_disable_device(link);
108 break;
109 }
110
111 } while (0);
112
113 /* If any step failed, release any partially configured state */
114 if (i != 0) {
115 avma1cs_release(link);
116 return -ENODEV;
117 }
118
119 icard.para[0] = link->irq;
120 icard.para[1] = link->resource[0]->start;
121 icard.protocol = isdnprot;
122 icard.typ = ISDN_CTYPE_A1_PCMCIA;
123
124 i = hisax_init_pcmcia(link, &busy, &icard);
125 if (i < 0) {
126 printk(KERN_ERR "avma1_cs: failed to initialize AVM A1 "
127 "PCMCIA %d at i/o %#x\n", i,
128 (unsigned int) link->resource[0]->start);
129 avma1cs_release(link);
130 return -ENODEV;
131 }
132 link->priv = (void *) (unsigned long) i;
133
134 return 0;
135 } /* avma1cs_config */
136
avma1cs_release(struct pcmcia_device * link)137 static void avma1cs_release(struct pcmcia_device *link)
138 {
139 unsigned long minor = (unsigned long) link->priv;
140
141 dev_dbg(&link->dev, "avma1cs_release(0x%p)\n", link);
142
143 /* now unregister function with hisax */
144 HiSax_closecard(minor);
145
146 pcmcia_disable_device(link);
147 } /* avma1cs_release */
148
149 static const struct pcmcia_device_id avma1cs_ids[] = {
150 PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN A", 0x95d42008, 0xadc9d4bb),
151 PCMCIA_DEVICE_PROD_ID12("ISDN", "CARD", 0x8d9761c8, 0x01c5aa7b),
152 PCMCIA_DEVICE_NULL
153 };
154 MODULE_DEVICE_TABLE(pcmcia, avma1cs_ids);
155
156 static struct pcmcia_driver avma1cs_driver = {
157 .owner = THIS_MODULE,
158 .name = "avma1_cs",
159 .probe = avma1cs_probe,
160 .remove = __devexit_p(avma1cs_detach),
161 .id_table = avma1cs_ids,
162 };
163
init_avma1_cs(void)164 static int __init init_avma1_cs(void)
165 {
166 return pcmcia_register_driver(&avma1cs_driver);
167 }
168
exit_avma1_cs(void)169 static void __exit exit_avma1_cs(void)
170 {
171 pcmcia_unregister_driver(&avma1cs_driver);
172 }
173
174 module_init(init_avma1_cs);
175 module_exit(exit_avma1_cs);
176