Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Henne | f61bb62 | 2010-03-25 12:05:32 +0000 | [diff] [blame] | 66 | static int elsa_cs_config(struct pcmcia_device *link) __devinit ; |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 67 | static void elsa_cs_release(struct pcmcia_device *link); |
Henne | f61bb62 | 2010-03-25 12:05:32 +0000 | [diff] [blame] | 68 | static void elsa_cs_detach(struct pcmcia_device *p_dev) __devexit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | typedef struct local_info_t { |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 71 | struct pcmcia_device *p_dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | int busy; |
| 73 | int cardnr; |
| 74 | } local_info_t; |
| 75 | |
Henne | f61bb62 | 2010-03-25 12:05:32 +0000 | [diff] [blame] | 76 | static int __devinit elsa_cs_probe(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | local_info_t *local; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | |
Dominik Brodowski | e773cfe | 2009-10-24 15:50:13 +0200 | [diff] [blame] | 80 | dev_dbg(&link->dev, "elsa_cs_attach()\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | |
| 82 | /* Allocate space for private device-specific data */ |
Burman Yan | 41f9693 | 2006-12-08 02:39:35 -0800 | [diff] [blame] | 83 | local = kzalloc(sizeof(local_info_t), GFP_KERNEL); |
Dominik Brodowski | f8cfa61 | 2005-11-14 21:25:51 +0100 | [diff] [blame] | 84 | if (!local) return -ENOMEM; |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 85 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 86 | local->p_dev = link; |
Dominik Brodowski | fd23823 | 2006-03-05 10:45:09 +0100 | [diff] [blame] | 87 | link->priv = local; |
| 88 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | local->cardnr = -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 91 | return elsa_cs_config(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | } /* elsa_cs_attach */ |
| 93 | |
Henne | f61bb62 | 2010-03-25 12:05:32 +0000 | [diff] [blame] | 94 | static void __devexit elsa_cs_detach(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | { |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 96 | local_info_t *info = link->priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | |
Dominik Brodowski | e773cfe | 2009-10-24 15:50:13 +0200 | [diff] [blame] | 98 | dev_dbg(&link->dev, "elsa_cs_detach(0x%p)\n", link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 100 | info->busy = 1; |
| 101 | elsa_cs_release(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | |
Dominik Brodowski | e2d4096 | 2006-03-02 00:09:29 +0100 | [diff] [blame] | 103 | kfree(info); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | } /* elsa_cs_detach */ |
| 105 | |
Dominik Brodowski | 00990e7 | 2010-07-30 13:13:46 +0200 | [diff] [blame] | 106 | static int elsa_cs_configcheck(struct pcmcia_device *p_dev, void *priv_data) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | { |
Dominik Brodowski | 5fcd4da | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 108 | int j; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | |
Dominik Brodowski | 90abdc3 | 2010-07-24 17:23:51 +0200 | [diff] [blame] | 110 | p_dev->io_lines = 3; |
Dominik Brodowski | 00990e7 | 2010-07-30 13:13:46 +0200 | [diff] [blame] | 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; |
Dominik Brodowski | 90abdc3 | 2010-07-24 17:23:51 +0200 | [diff] [blame] | 114 | |
Dominik Brodowski | 00990e7 | 2010-07-30 13:13:46 +0200 | [diff] [blame] | 115 | if ((p_dev->resource[0]->end) && p_dev->resource[0]->start) { |
Dominik Brodowski | 5fcd4da | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 116 | printk(KERN_INFO "(elsa_cs: looks like the 96 model)\n"); |
Dominik Brodowski | 90abdc3 | 2010-07-24 17:23:51 +0200 | [diff] [blame] | 117 | if (!pcmcia_request_io(p_dev)) |
Dominik Brodowski | 5fcd4da | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 118 | return 0; |
| 119 | } else { |
| 120 | printk(KERN_INFO "(elsa_cs: looks like the 97 model)\n"); |
Dominik Brodowski | 5fcd4da | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 121 | for (j = 0x2f0; j > 0x100; j -= 0x10) { |
Dominik Brodowski | 90abdc3 | 2010-07-24 17:23:51 +0200 | [diff] [blame] | 122 | p_dev->resource[0]->start = j; |
| 123 | if (!pcmcia_request_io(p_dev)) |
Dominik Brodowski | 5fcd4da | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 124 | return 0; |
| 125 | } |
| 126 | } |
| 127 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | } |
| 129 | |
Henne | f61bb62 | 2010-03-25 12:05:32 +0000 | [diff] [blame] | 130 | static int __devinit elsa_cs_config(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 131 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | local_info_t *dev; |
Dominik Brodowski | e773cfe | 2009-10-24 15:50:13 +0200 | [diff] [blame] | 133 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | IsdnCard_t icard; |
| 135 | |
Dominik Brodowski | e773cfe | 2009-10-24 15:50:13 +0200 | [diff] [blame] | 136 | dev_dbg(&link->dev, "elsa_config(0x%p)\n", link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | dev = link->priv; |
| 138 | |
Dominik Brodowski | 00990e7 | 2010-07-30 13:13:46 +0200 | [diff] [blame] | 139 | link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; |
| 140 | |
Dominik Brodowski | 5fcd4da | 2008-07-29 08:38:55 +0200 | [diff] [blame] | 141 | i = pcmcia_loop_config(link, elsa_cs_configcheck, NULL); |
Dominik Brodowski | e773cfe | 2009-10-24 15:50:13 +0200 | [diff] [blame] | 142 | if (i != 0) |
| 143 | goto failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | |
Dominik Brodowski | eb14120 | 2010-03-07 12:21:16 +0100 | [diff] [blame] | 145 | if (!link->irq) |
Dominik Brodowski | e773cfe | 2009-10-24 15:50:13 +0200 | [diff] [blame] | 146 | goto failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | |
Dominik Brodowski | 1ac71e5 | 2010-07-29 19:27:09 +0200 | [diff] [blame] | 148 | i = pcmcia_enable_device(link); |
Dominik Brodowski | e773cfe | 2009-10-24 15:50:13 +0200 | [diff] [blame] | 149 | if (i != 0) |
| 150 | goto failed; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | |
Dominik Brodowski | eb14120 | 2010-03-07 12:21:16 +0100 | [diff] [blame] | 152 | icard.para[0] = link->irq; |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 153 | icard.para[1] = link->resource[0]->start; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) { |
Dominik Brodowski | 9a017a9 | 2010-07-24 15:58:54 +0200 | [diff] [blame] | 159 | printk(KERN_ERR "elsa_cs: failed to initialize Elsa " |
| 160 | "PCMCIA %d with %pR\n", i, link->resource[0]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | elsa_cs_release(link); |
| 162 | } else |
| 163 | ((local_info_t*)link->priv)->cardnr = i; |
| 164 | |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 165 | return 0; |
Dominik Brodowski | e773cfe | 2009-10-24 15:50:13 +0200 | [diff] [blame] | 166 | failed: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | elsa_cs_release(link); |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 168 | return -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | } /* elsa_cs_config */ |
| 170 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 171 | static void elsa_cs_release(struct pcmcia_device *link) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | { |
| 173 | local_info_t *local = link->priv; |
| 174 | |
Dominik Brodowski | e773cfe | 2009-10-24 15:50:13 +0200 | [diff] [blame] | 175 | dev_dbg(&link->dev, "elsa_cs_release(0x%p)\n", link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | |
| 177 | if (local) { |
| 178 | if (local->cardnr >= 0) { |
| 179 | /* no unregister function with hisax */ |
| 180 | HiSax_closecard(local->cardnr); |
| 181 | } |
| 182 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 184 | pcmcia_disable_device(link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | } /* elsa_cs_release */ |
| 186 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 187 | static int elsa_suspend(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 188 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 189 | local_info_t *dev = link->priv; |
| 190 | |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 191 | dev->busy = 1; |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 192 | |
| 193 | return 0; |
| 194 | } |
| 195 | |
Dominik Brodowski | fba395e | 2006-03-31 17:21:06 +0200 | [diff] [blame] | 196 | static int elsa_resume(struct pcmcia_device *link) |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 197 | { |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 198 | local_info_t *dev = link->priv; |
| 199 | |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 200 | dev->busy = 0; |
| 201 | |
| 202 | return 0; |
| 203 | } |
| 204 | |
Dominik Brodowski | 02ae38c | 2005-06-27 16:28:39 -0700 | [diff] [blame] | 205 | static 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 | }; |
| 210 | MODULE_DEVICE_TABLE(pcmcia, elsa_ids); |
| 211 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | static struct pcmcia_driver elsa_cs_driver = { |
| 213 | .owner = THIS_MODULE, |
Dominik Brodowski | 2e9b981 | 2010-08-08 11:36:26 +0200 | [diff] [blame] | 214 | .name = "elsa_cs", |
Dominik Brodowski | 15b99ac | 2006-03-31 17:26:06 +0200 | [diff] [blame] | 215 | .probe = elsa_cs_probe, |
Henne | f61bb62 | 2010-03-25 12:05:32 +0000 | [diff] [blame] | 216 | .remove = __devexit_p(elsa_cs_detach), |
Dominik Brodowski | 02ae38c | 2005-06-27 16:28:39 -0700 | [diff] [blame] | 217 | .id_table = elsa_ids, |
Dominik Brodowski | 98e4c28 | 2005-11-14 21:21:18 +0100 | [diff] [blame] | 218 | .suspend = elsa_suspend, |
| 219 | .resume = elsa_resume, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | }; |
| 221 | |
| 222 | static int __init init_elsa_cs(void) |
| 223 | { |
| 224 | return pcmcia_register_driver(&elsa_cs_driver); |
| 225 | } |
| 226 | |
| 227 | static void __exit exit_elsa_cs(void) |
| 228 | { |
| 229 | pcmcia_unregister_driver(&elsa_cs_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | } |
| 231 | |
| 232 | module_init(init_elsa_cs); |
| 233 | module_exit(exit_elsa_cs); |