Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /*====================================================================== |
2 | ||
3 | An elsa_cs PCMCIA client driver | |
4 | ||
5 | This driver is for the Elsa PCM ISDN Cards, i.e. the MicroLink | |
6 | ||
7 | ||
8 | The contents of this file are subject to the Mozilla Public | |
9 | License Version 1.1 (the "License"); you may not use this file | |
10 | except in compliance with the License. You may obtain a copy of | |
11 | the License at http://www.mozilla.org/MPL/ | |
12 | ||
13 | Software distributed under the License is distributed on an "AS | |
14 | IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or | |
15 | implied. See the License for the specific language governing | |
16 | rights and limitations under the License. | |
17 | ||
18 | The initial developer of the original code is David A. Hinds | |
19 | <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
20 | are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
21 | ||
22 | Modifications from dummy_cs.c are Copyright (C) 1999-2001 Klaus | |
23 | Lichtenwalder <Lichtenwalder@ACM.org>. All Rights Reserved. | |
24 | ||
25 | Alternatively, the contents of this file may be used under the | |
26 | terms of the GNU General Public License version 2 (the "GPL"), in | |
27 | which case the provisions of the GPL are applicable instead of the | |
28 | above. If you wish to allow the use of your version of this file | |
29 | only under the terms of the GPL and not to allow others to use | |
30 | your version of this file under the MPL, indicate your decision | |
31 | by deleting the provisions above and replace them with the notice | |
32 | and other provisions required by the GPL. If you do not delete | |
33 | the provisions above, a recipient may use your version of this | |
34 | file under either the MPL or the GPL. | |
35 | ||
36 | ======================================================================*/ | |
37 | ||
38 | #include <linux/module.h> | |
39 | #include <linux/kernel.h> | |
40 | #include <linux/init.h> | |
1da177e4 LT |
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 | ||
1da177e4 LT |
49 | #include <pcmcia/cistpl.h> |
50 | #include <pcmcia/cisreg.h> | |
51 | #include <pcmcia/ds.h> | |
52 | #include "hisax_cfg.h" | |
53 | ||
54 | MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for Elsa PCM cards"); | |
55 | MODULE_AUTHOR("Klaus Lichtenwalder"); | |
56 | MODULE_LICENSE("Dual MPL/GPL"); | |
57 | ||
1da177e4 LT |
58 | |
59 | /*====================================================================*/ | |
60 | ||
61 | /* Parameters that can be set with 'insmod' */ | |
62 | ||
63 | static int protocol = 2; /* EURO-ISDN Default */ | |
64 | module_param(protocol, int, 0); | |
65 | ||
f61bb62e | 66 | static int elsa_cs_config(struct pcmcia_device *link) __devinit ; |
fba395ee | 67 | static void elsa_cs_release(struct pcmcia_device *link); |
f61bb62e | 68 | static void elsa_cs_detach(struct pcmcia_device *p_dev) __devexit; |
1da177e4 | 69 | |
1da177e4 | 70 | typedef struct local_info_t { |
fd238232 | 71 | struct pcmcia_device *p_dev; |
1da177e4 LT |
72 | int busy; |
73 | int cardnr; | |
74 | } local_info_t; | |
75 | ||
f61bb62e | 76 | static int __devinit elsa_cs_probe(struct pcmcia_device *link) |
1da177e4 | 77 | { |
1da177e4 | 78 | local_info_t *local; |
1da177e4 | 79 | |
e773cfe1 | 80 | dev_dbg(&link->dev, "elsa_cs_attach()\n"); |
1da177e4 LT |
81 | |
82 | /* Allocate space for private device-specific data */ | |
41f96935 | 83 | local = kzalloc(sizeof(local_info_t), GFP_KERNEL); |
f8cfa618 | 84 | if (!local) return -ENOMEM; |
fd238232 | 85 | |
fba395ee | 86 | local->p_dev = link; |
fd238232 DB |
87 | link->priv = local; |
88 | ||
1da177e4 | 89 | local->cardnr = -1; |
1da177e4 | 90 | |
15b99ac1 | 91 | return elsa_cs_config(link); |
1da177e4 LT |
92 | } /* elsa_cs_attach */ |
93 | ||
f61bb62e | 94 | static void __devexit elsa_cs_detach(struct pcmcia_device *link) |
1da177e4 | 95 | { |
e2d40963 | 96 | local_info_t *info = link->priv; |
1da177e4 | 97 | |
e773cfe1 | 98 | dev_dbg(&link->dev, "elsa_cs_detach(0x%p)\n", link); |
1da177e4 | 99 | |
e2d40963 DB |
100 | info->busy = 1; |
101 | elsa_cs_release(link); | |
1da177e4 | 102 | |
e2d40963 | 103 | kfree(info); |
1da177e4 LT |
104 | } /* elsa_cs_detach */ |
105 | ||
00990e7c | 106 | static int elsa_cs_configcheck(struct pcmcia_device *p_dev, void *priv_data) |
1da177e4 | 107 | { |
5fcd4da0 DB |
108 | int j; |
109 | ||
90abdc3b | 110 | p_dev->io_lines = 3; |
00990e7c DB |
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; | |
90abdc3b | 114 | |
00990e7c | 115 | if ((p_dev->resource[0]->end) && p_dev->resource[0]->start) { |
5fcd4da0 | 116 | printk(KERN_INFO "(elsa_cs: looks like the 96 model)\n"); |
90abdc3b | 117 | if (!pcmcia_request_io(p_dev)) |
5fcd4da0 DB |
118 | return 0; |
119 | } else { | |
120 | printk(KERN_INFO "(elsa_cs: looks like the 97 model)\n"); | |
5fcd4da0 | 121 | for (j = 0x2f0; j > 0x100; j -= 0x10) { |
90abdc3b DB |
122 | p_dev->resource[0]->start = j; |
123 | if (!pcmcia_request_io(p_dev)) | |
5fcd4da0 DB |
124 | return 0; |
125 | } | |
126 | } | |
127 | return -ENODEV; | |
1da177e4 LT |
128 | } |
129 | ||
f61bb62e | 130 | static int __devinit elsa_cs_config(struct pcmcia_device *link) |
1da177e4 | 131 | { |
e773cfe1 | 132 | int i; |
1da177e4 LT |
133 | IsdnCard_t icard; |
134 | ||
e773cfe1 | 135 | dev_dbg(&link->dev, "elsa_config(0x%p)\n", link); |
1da177e4 | 136 | |
00990e7c DB |
137 | link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; |
138 | ||
5fcd4da0 | 139 | i = pcmcia_loop_config(link, elsa_cs_configcheck, NULL); |
e773cfe1 DB |
140 | if (i != 0) |
141 | goto failed; | |
1da177e4 | 142 | |
eb14120f | 143 | if (!link->irq) |
e773cfe1 | 144 | goto failed; |
1da177e4 | 145 | |
1ac71e5a | 146 | i = pcmcia_enable_device(link); |
e773cfe1 DB |
147 | if (i != 0) |
148 | goto failed; | |
1da177e4 | 149 | |
eb14120f | 150 | icard.para[0] = link->irq; |
9a017a91 | 151 | icard.para[1] = link->resource[0]->start; |
1da177e4 LT |
152 | icard.protocol = protocol; |
153 | icard.typ = ISDN_CTYPE_ELSA_PCMCIA; | |
154 | ||
155 | i = hisax_init_pcmcia(link, &(((local_info_t*)link->priv)->busy), &icard); | |
156 | if (i < 0) { | |
9a017a91 DB |
157 | printk(KERN_ERR "elsa_cs: failed to initialize Elsa " |
158 | "PCMCIA %d with %pR\n", i, link->resource[0]); | |
1da177e4 LT |
159 | elsa_cs_release(link); |
160 | } else | |
161 | ((local_info_t*)link->priv)->cardnr = i; | |
162 | ||
15b99ac1 | 163 | return 0; |
e773cfe1 | 164 | failed: |
1da177e4 | 165 | elsa_cs_release(link); |
15b99ac1 | 166 | return -ENODEV; |
1da177e4 LT |
167 | } /* elsa_cs_config */ |
168 | ||
fba395ee | 169 | static void elsa_cs_release(struct pcmcia_device *link) |
1da177e4 LT |
170 | { |
171 | local_info_t *local = link->priv; | |
172 | ||
e773cfe1 | 173 | dev_dbg(&link->dev, "elsa_cs_release(0x%p)\n", link); |
1da177e4 LT |
174 | |
175 | if (local) { | |
176 | if (local->cardnr >= 0) { | |
177 | /* no unregister function with hisax */ | |
178 | HiSax_closecard(local->cardnr); | |
179 | } | |
180 | } | |
5f2a71fc | 181 | |
fba395ee | 182 | pcmcia_disable_device(link); |
1da177e4 LT |
183 | } /* elsa_cs_release */ |
184 | ||
fba395ee | 185 | static int elsa_suspend(struct pcmcia_device *link) |
98e4c28b | 186 | { |
98e4c28b DB |
187 | local_info_t *dev = link->priv; |
188 | ||
98e4c28b | 189 | dev->busy = 1; |
98e4c28b DB |
190 | |
191 | return 0; | |
192 | } | |
193 | ||
fba395ee | 194 | static int elsa_resume(struct pcmcia_device *link) |
98e4c28b | 195 | { |
98e4c28b DB |
196 | local_info_t *dev = link->priv; |
197 | ||
98e4c28b DB |
198 | dev->busy = 0; |
199 | ||
200 | return 0; | |
201 | } | |
202 | ||
02ae38cf DB |
203 | static struct pcmcia_device_id elsa_ids[] = { |
204 | PCMCIA_DEVICE_PROD_ID12("ELSA AG (Aachen, Germany)", "MicroLink ISDN/MC ", 0x983de2c4, 0x333ba257), | |
205 | PCMCIA_DEVICE_PROD_ID12("ELSA GmbH, Aachen", "MicroLink ISDN/MC ", 0x639e5718, 0x333ba257), | |
206 | PCMCIA_DEVICE_NULL | |
207 | }; | |
208 | MODULE_DEVICE_TABLE(pcmcia, elsa_ids); | |
209 | ||
1da177e4 LT |
210 | static struct pcmcia_driver elsa_cs_driver = { |
211 | .owner = THIS_MODULE, | |
2e9b981a | 212 | .name = "elsa_cs", |
15b99ac1 | 213 | .probe = elsa_cs_probe, |
f61bb62e | 214 | .remove = __devexit_p(elsa_cs_detach), |
02ae38cf | 215 | .id_table = elsa_ids, |
98e4c28b DB |
216 | .suspend = elsa_suspend, |
217 | .resume = elsa_resume, | |
1da177e4 LT |
218 | }; |
219 | ||
220 | static int __init init_elsa_cs(void) | |
221 | { | |
222 | return pcmcia_register_driver(&elsa_cs_driver); | |
223 | } | |
224 | ||
225 | static void __exit exit_elsa_cs(void) | |
226 | { | |
227 | pcmcia_unregister_driver(&elsa_cs_driver); | |
1da177e4 LT |
228 | } |
229 | ||
230 | module_init(init_elsa_cs); | |
231 | module_exit(exit_elsa_cs); |