1 /*---------------------------------------------------------------------------
2 FT1000 driver for Flarion Flash OFDM NIC Device
4 Copyright (C) 1999 David A. Hinds. All Rights Reserved.
5 Copyright (C) 2002 Flarion Technologies, All rights reserved.
6 Copyright (C) 2006 Patrik Ostrihon, All rights reserved.
7 Copyright (C) 2006 ProWeb Consulting, a.s, All rights reserved.
9 The initial developer of the original code is David A. Hinds
10 <dahinds@users.sourceforge.net>. Portions created by David A. Hinds.
12 This file was modified to support the Flarion Flash OFDM NIC Device
13 by Wai Chan (w.chan@flarion.com).
15 Port for kernel 2.6 created by Patrik Ostrihon (patrik.ostrihon@pwc.sk)
17 This program is free software; you can redistribute it and/or modify it
18 under the terms of the GNU General Public License as published by the Free
19 Software Foundation; either version 2 of the License, or (at your option) any
20 later version. This program is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
22 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
23 more details. You should have received a copy of the GNU General Public
24 License along with this program; if not, write to the
25 Free Software Foundation, Inc., 59 Temple Place -
26 Suite 330, Boston, MA 02111-1307, USA.
27 -----------------------------------------------------------------------------*/
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/init.h>
32 #include <linux/ptrace.h>
33 #include <linux/slab.h>
34 #include <linux/string.h>
35 #include <linux/timer.h>
36 #include <linux/ioport.h>
37 #include <linux/delay.h>
39 #include <linux/netdevice.h>
40 #include <linux/etherdevice.h>
42 #include <pcmcia/cistpl.h>
43 #include <pcmcia/cisreg.h>
44 #include <pcmcia/ds.h>
47 #include <asm/system.h>
48 #include <asm/byteorder.h>
49 #include <asm/uaccess.h>
51 /*====================================================================*/
53 /* Module parameters */
55 #define INT_MODULE_PARM(n, v) static int n = v; MODULE_PARM(n, "i")
57 MODULE_AUTHOR("Wai Chan");
58 MODULE_DESCRIPTION("FT1000 PCMCIA driver");
59 MODULE_LICENSE("GPL");
61 /* Newer, simpler way of listing specific interrupts */
63 /* The old way: bit map of interrupts to choose from */
64 /* This means pick from 15, 14, 12, 11, 10, 9, 7, 5, 4, and 3 */
67 All the PCMCIA modules use PCMCIA_DEBUG to control debugging. If
68 you do not define PCMCIA_DEBUG at all, all the debug code will be
69 left out. If you compile with PCMCIA_DEBUG=0, the debug code will
70 be present but disabled.
73 #define DEBUG(n, args...) printk(KERN_DEBUG args)
75 #define DEBUG(n, args...)
78 /*====================================================================*/
80 struct net_device *init_ft1000_card(struct pcmcia_device *link,
82 void stop_ft1000_card(struct net_device *);
84 static int ft1000_config(struct pcmcia_device *link);
85 static void ft1000_release(struct pcmcia_device *link);
88 The attach() and detach() entry points are used to create and destroy
89 "instances" of the driver, where each instance represents everything
90 needed to manage one actual PCMCIA card.
93 static void ft1000_detach(struct pcmcia_device *link);
94 static int ft1000_attach(struct pcmcia_device *link);
96 typedef struct local_info_t {
97 struct pcmcia_device *link;
98 struct net_device *dev;
101 #define MAX_ASIC_RESET_CNT 10
102 #define COR_DEFAULT 0x55
104 /*====================================================================*/
106 static void ft1000_reset(struct pcmcia_device * link)
108 pcmcia_reset_card(link->socket);
111 /*======================================================================
114 ======================================================================*/
116 static int ft1000_attach(struct pcmcia_device *link)
121 DEBUG(0, "ft1000_cs: ft1000_attach()\n");
123 local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
132 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
134 return ft1000_config(link);
136 } /* ft1000_attach */
138 /*======================================================================
140 This deletes a driver "instance". The device is de-registered
141 with Card Services. If it has been released, all local data
142 structures are freed. Otherwise, the structures will be freed
143 when the device is released.
145 ======================================================================*/
147 static void ft1000_detach(struct pcmcia_device *link)
149 struct net_device *dev = ((local_info_t *) link->priv)->dev;
151 DEBUG(0, "ft1000_cs: ft1000_detach(0x%p)\n", link);
154 DEBUG(0,"ft1000_cs:ft1000_detach: Got a NULL pointer\n");
159 stop_ft1000_card(dev);
162 pcmcia_disable_device(link);
164 /* This points to the parent local_info_t struct */
167 } /* ft1000_detach */
169 /*======================================================================
171 Check if the io window is configured
173 ======================================================================*/
174 int ft1000_confcheck(struct pcmcia_device *link, void *priv_data)
177 return pcmcia_request_io(link);
178 } /* ft1000_confcheck */
180 /*======================================================================
182 ft1000_config() is scheduled to run after a CARD_INSERTION event
183 is received, to configure the PCMCIA socket, and to make the
184 device available to the system.
186 ======================================================================*/
188 static int ft1000_config(struct pcmcia_device *link)
192 dev_dbg(&link->dev, "ft1000_cs: ft1000_config(0x%p)\n", link);
194 /* setup IO window */
195 ret = pcmcia_loop_config(link, ft1000_confcheck, NULL);
197 printk(KERN_INFO "ft1000: Could not configure pcmcia\n");
201 /* configure device */
202 ret = pcmcia_enable_device(link);
204 printk(KERN_INFO "ft1000: could not enable pcmcia\n");
208 ((local_info_t *) link->priv)->dev = init_ft1000_card(link,
210 if (((local_info_t *) link->priv)->dev == NULL) {
211 printk(KERN_INFO "ft1000: Could not register as network device\n");
215 /* Finally, report what we've done */
219 ft1000_release(link);
222 } /* ft1000_config */
224 /*======================================================================
226 After a card is removed, ft1000_release() will unregister the
227 device, and release the PCMCIA configuration. If the device is
228 still open, this will be postponed until it is closed.
230 ======================================================================*/
232 static void ft1000_release(struct pcmcia_device * link)
235 DEBUG(0, "ft1000_cs: ft1000_release(0x%p)\n", link);
238 If the device is currently in use, we won't release until it
239 is actually closed, because until then, we can't be sure that
240 no one will try to access the device or its data structures.
244 In a normal driver, additional code may be needed to release
245 other kernel data structures associated with this device.
247 kfree((local_info_t *) link->priv);
248 /* Don't bother checking to see if these succeed or not */
250 pcmcia_disable_device(link);
251 } /* ft1000_release */
253 /*======================================================================
255 The card status event handler. Mostly, this schedules other
256 stuff to run after an event is received.
258 When a CARD_REMOVAL event is received, we immediately set a
259 private flag to block future accesses to this device. All the
260 functions that actually access the device should check this flag
261 to make sure the card is still present.
263 ======================================================================*/
265 static int ft1000_suspend(struct pcmcia_device *link)
267 struct net_device *dev = ((local_info_t *) link->priv)->dev;
269 DEBUG(1, "ft1000_cs: ft1000_event(0x%06x)\n", event);
272 netif_device_detach(dev);
276 static int ft1000_resume(struct pcmcia_device *link)
278 /* struct net_device *dev = link->priv;
285 /*====================================================================*/
287 static struct pcmcia_device_id ft1000_ids[] = {
288 PCMCIA_DEVICE_MANF_CARD(0x02cc, 0x0100),
289 PCMCIA_DEVICE_MANF_CARD(0x02cc, 0x1000),
290 PCMCIA_DEVICE_MANF_CARD(0x02cc, 0x1300),
294 MODULE_DEVICE_TABLE(pcmcia, ft1000_ids);
296 static struct pcmcia_driver ft1000_cs_driver = {
297 .owner = THIS_MODULE,
301 .probe = ft1000_attach,
302 .remove = ft1000_detach,
303 .id_table = ft1000_ids,
304 .suspend = ft1000_suspend,
305 .resume = ft1000_resume,
308 static int __init init_ft1000_cs(void)
310 DEBUG(0, "ft1000_cs: loading\n");
311 return pcmcia_register_driver(&ft1000_cs_driver);
314 static void __exit exit_ft1000_cs(void)
316 DEBUG(0, "ft1000_cs: unloading\n");
317 pcmcia_unregister_driver(&ft1000_cs_driver);
320 module_init(init_ft1000_cs);
321 module_exit(exit_ft1000_cs);