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38#include <linux/module.h>
39#include <linux/kernel.h>
40#include <linux/init.h>
41#include <linux/ptrace.h>
42#include <linux/slab.h>
43#include <linux/string.h>
44#include <linux/timer.h>
45#include <linux/ioport.h>
46#include <asm/io.h>
47#include <asm/system.h>
48
49#include <pcmcia/cistpl.h>
50#include <pcmcia/cisreg.h>
51#include <pcmcia/ds.h>
52#include "hisax_cfg.h"
53
54MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for Elsa PCM cards");
55MODULE_AUTHOR("Klaus Lichtenwalder");
56MODULE_LICENSE("Dual MPL/GPL");
57
58
59
60
61
62
63static int protocol = 2;
64module_param(protocol, int, 0);
65
66static int elsa_cs_config(struct pcmcia_device *link) __devinit ;
67static void elsa_cs_release(struct pcmcia_device *link);
68static void elsa_cs_detach(struct pcmcia_device *p_dev) __devexit;
69
70typedef struct local_info_t {
71 struct pcmcia_device *p_dev;
72 int busy;
73 int cardnr;
74} local_info_t;
75
76static int __devinit elsa_cs_probe(struct pcmcia_device *link)
77{
78 local_info_t *local;
79
80 dev_dbg(&link->dev, "elsa_cs_attach()\n");
81
82
83 local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
84 if (!local) return -ENOMEM;
85
86 local->p_dev = link;
87 link->priv = local;
88
89 local->cardnr = -1;
90
91 return elsa_cs_config(link);
92}
93
94static void __devexit elsa_cs_detach(struct pcmcia_device *link)
95{
96 local_info_t *info = link->priv;
97
98 dev_dbg(&link->dev, "elsa_cs_detach(0x%p)\n", link);
99
100 info->busy = 1;
101 elsa_cs_release(link);
102
103 kfree(info);
104}
105
106static int elsa_cs_configcheck(struct pcmcia_device *p_dev, void *priv_data)
107{
108 int j;
109
110 p_dev->io_lines = 3;
111 p_dev->resource[0]->end = 8;
112 p_dev->resource[0]->flags &= IO_DATA_PATH_WIDTH;
113 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
114
115 if ((p_dev->resource[0]->end) && p_dev->resource[0]->start) {
116 printk(KERN_INFO "(elsa_cs: looks like the 96 model)\n");
117 if (!pcmcia_request_io(p_dev))
118 return 0;
119 } else {
120 printk(KERN_INFO "(elsa_cs: looks like the 97 model)\n");
121 for (j = 0x2f0; j > 0x100; j -= 0x10) {
122 p_dev->resource[0]->start = j;
123 if (!pcmcia_request_io(p_dev))
124 return 0;
125 }
126 }
127 return -ENODEV;
128}
129
130static int __devinit elsa_cs_config(struct pcmcia_device *link)
131{
132 local_info_t *dev;
133 int i;
134 IsdnCard_t icard;
135
136 dev_dbg(&link->dev, "elsa_config(0x%p)\n", link);
137 dev = link->priv;
138
139 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
140
141 i = pcmcia_loop_config(link, elsa_cs_configcheck, NULL);
142 if (i != 0)
143 goto failed;
144
145 if (!link->irq)
146 goto failed;
147
148 i = pcmcia_enable_device(link);
149 if (i != 0)
150 goto failed;
151
152 icard.para[0] = link->irq;
153 icard.para[1] = link->resource[0]->start;
154 icard.protocol = protocol;
155 icard.typ = ISDN_CTYPE_ELSA_PCMCIA;
156
157 i = hisax_init_pcmcia(link, &(((local_info_t*)link->priv)->busy), &icard);
158 if (i < 0) {
159 printk(KERN_ERR "elsa_cs: failed to initialize Elsa "
160 "PCMCIA %d with %pR\n", i, link->resource[0]);
161 elsa_cs_release(link);
162 } else
163 ((local_info_t*)link->priv)->cardnr = i;
164
165 return 0;
166failed:
167 elsa_cs_release(link);
168 return -ENODEV;
169}
170
171static void elsa_cs_release(struct pcmcia_device *link)
172{
173 local_info_t *local = link->priv;
174
175 dev_dbg(&link->dev, "elsa_cs_release(0x%p)\n", link);
176
177 if (local) {
178 if (local->cardnr >= 0) {
179
180 HiSax_closecard(local->cardnr);
181 }
182 }
183
184 pcmcia_disable_device(link);
185}
186
187static int elsa_suspend(struct pcmcia_device *link)
188{
189 local_info_t *dev = link->priv;
190
191 dev->busy = 1;
192
193 return 0;
194}
195
196static int elsa_resume(struct pcmcia_device *link)
197{
198 local_info_t *dev = link->priv;
199
200 dev->busy = 0;
201
202 return 0;
203}
204
205static struct pcmcia_device_id elsa_ids[] = {
206 PCMCIA_DEVICE_PROD_ID12("ELSA AG (Aachen, Germany)", "MicroLink ISDN/MC ", 0x983de2c4, 0x333ba257),
207 PCMCIA_DEVICE_PROD_ID12("ELSA GmbH, Aachen", "MicroLink ISDN/MC ", 0x639e5718, 0x333ba257),
208 PCMCIA_DEVICE_NULL
209};
210MODULE_DEVICE_TABLE(pcmcia, elsa_ids);
211
212static struct pcmcia_driver elsa_cs_driver = {
213 .owner = THIS_MODULE,
214 .name = "elsa_cs",
215 .probe = elsa_cs_probe,
216 .remove = __devexit_p(elsa_cs_detach),
217 .id_table = elsa_ids,
218 .suspend = elsa_suspend,
219 .resume = elsa_resume,
220};
221
222static int __init init_elsa_cs(void)
223{
224 return pcmcia_register_driver(&elsa_cs_driver);
225}
226
227static void __exit exit_elsa_cs(void)
228{
229 pcmcia_unregister_driver(&elsa_cs_driver);
230}
231
232module_init(init_elsa_cs);
233module_exit(exit_elsa_cs);
234