2 * IPWireless 3G PCMCIA Network Driver
5 * by Stephen Blackheath <stephen@blacksapphire.com>,
6 * Ben Martel <benm@symmetric.co.nz>
8 * Copyrighted as follows:
9 * Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
11 * Various driver changes and rewrites, port to new kernels
12 * Copyright (C) 2006-2007 Jiri Kosina
14 * Misc code cleanups and updates
15 * Copyright (C) 2007 David Sterba
23 #include <linux/delay.h>
24 #include <linux/init.h>
26 #include <linux/kernel.h>
27 #include <linux/module.h>
28 #include <linux/sched.h>
29 #include <linux/slab.h>
31 #include <pcmcia/cisreg.h>
32 #include <pcmcia/device_id.h>
33 #include <pcmcia/ss.h>
34 #include <pcmcia/ds.h>
35 #include <pcmcia/cs.h>
37 static struct pcmcia_device_id ipw_ids
[] = {
38 PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0100),
39 PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0200),
42 MODULE_DEVICE_TABLE(pcmcia
, ipw_ids
);
44 static void ipwireless_detach(struct pcmcia_device
*link
);
49 /* Debug mode: more verbose, print sent/recv bytes */
51 int ipwireless_loopback
;
52 int ipwireless_out_queue
= 10;
54 module_param_named(debug
, ipwireless_debug
, int, 0);
55 module_param_named(loopback
, ipwireless_loopback
, int, 0);
56 module_param_named(out_queue
, ipwireless_out_queue
, int, 0);
57 MODULE_PARM_DESC(debug
, "switch on debug messages [0]");
58 MODULE_PARM_DESC(loopback
,
59 "debug: enable ras_raw channel [0]");
60 MODULE_PARM_DESC(out_queue
, "debug: set size of outgoing PPP queue [10]");
62 /* Executes in process context. */
63 static void signalled_reboot_work(struct work_struct
*work_reboot
)
65 struct ipw_dev
*ipw
= container_of(work_reboot
, struct ipw_dev
,
67 struct pcmcia_device
*link
= ipw
->link
;
68 pcmcia_reset_card(link
->socket
);
71 static void signalled_reboot_callback(void *callback_data
)
73 struct ipw_dev
*ipw
= (struct ipw_dev
*) callback_data
;
75 /* Delegate to process context. */
76 schedule_work(&ipw
->work_reboot
);
79 static int ipwireless_probe(struct pcmcia_device
*p_dev
,
80 cistpl_cftable_entry_t
*cfg
,
81 cistpl_cftable_entry_t
*dflt
,
85 struct ipw_dev
*ipw
= priv_data
;
86 struct resource
*io_resource
;
89 p_dev
->resource
[0]->flags
|= IO_DATA_PATH_WIDTH_AUTO
;
90 p_dev
->resource
[0]->start
= cfg
->io
.win
[0].base
;
91 p_dev
->resource
[0]->end
= cfg
->io
.win
[0].len
;
93 /* 0x40 causes it to generate level mode interrupts. */
94 /* 0x04 enables IREQ pin. */
95 p_dev
->conf
.ConfigIndex
= cfg
->index
| 0x44;
97 ret
= pcmcia_request_io(p_dev
);
101 io_resource
= request_region(p_dev
->resource
[0]->start
,
102 resource_size(p_dev
->resource
[0]),
103 IPWIRELESS_PCCARD_NAME
);
105 if (cfg
->mem
.nwin
== 0)
108 ipw
->request_common_memory
.Attributes
=
109 WIN_DATA_WIDTH_16
| WIN_MEMORY_TYPE_CM
| WIN_ENABLE
;
110 ipw
->request_common_memory
.Base
= cfg
->mem
.win
[0].host_addr
;
111 ipw
->request_common_memory
.Size
= cfg
->mem
.win
[0].len
;
112 if (ipw
->request_common_memory
.Size
< 0x1000)
113 ipw
->request_common_memory
.Size
= 0x1000;
114 ipw
->request_common_memory
.AccessSpeed
= 0;
116 ret
= pcmcia_request_window(p_dev
, &ipw
->request_common_memory
,
117 &ipw
->handle_common_memory
);
122 ret
= pcmcia_map_mem_page(p_dev
, ipw
->handle_common_memory
,
123 cfg
->mem
.win
[0].card_addr
);
128 ipw
->is_v2_card
= cfg
->mem
.win
[0].len
== 0x100;
130 ipw
->common_memory
= ioremap(ipw
->request_common_memory
.Base
,
131 ipw
->request_common_memory
.Size
);
132 request_mem_region(ipw
->request_common_memory
.Base
,
133 ipw
->request_common_memory
.Size
,
134 IPWIRELESS_PCCARD_NAME
);
136 ipw
->request_attr_memory
.Attributes
=
137 WIN_DATA_WIDTH_16
| WIN_MEMORY_TYPE_AM
| WIN_ENABLE
;
138 ipw
->request_attr_memory
.Base
= 0;
139 ipw
->request_attr_memory
.Size
= 0; /* this used to be 0x1000 */
140 ipw
->request_attr_memory
.AccessSpeed
= 0;
142 ret
= pcmcia_request_window(p_dev
, &ipw
->request_attr_memory
,
143 &ipw
->handle_attr_memory
);
148 ret
= pcmcia_map_mem_page(p_dev
, ipw
->handle_attr_memory
, 0);
152 ipw
->attr_memory
= ioremap(ipw
->request_attr_memory
.Base
,
153 ipw
->request_attr_memory
.Size
);
154 request_mem_region(ipw
->request_attr_memory
.Base
,
155 ipw
->request_attr_memory
.Size
, IPWIRELESS_PCCARD_NAME
);
161 if (ipw
->common_memory
) {
162 release_mem_region(ipw
->request_common_memory
.Base
,
163 ipw
->request_common_memory
.Size
);
164 iounmap(ipw
->common_memory
);
167 release_resource(io_resource
);
168 pcmcia_disable_device(p_dev
);
172 static int config_ipwireless(struct ipw_dev
*ipw
)
174 struct pcmcia_device
*link
= ipw
->link
;
179 ret
= pcmcia_loop_config(link
, ipwireless_probe
, ipw
);
183 link
->conf
.Attributes
= CONF_ENABLE_IRQ
;
184 link
->conf
.IntType
= INT_MEMORY_AND_IO
;
186 INIT_WORK(&ipw
->work_reboot
, signalled_reboot_work
);
188 ipwireless_init_hardware_v1(ipw
->hardware
, link
->resource
[0]->start
,
189 ipw
->attr_memory
, ipw
->common_memory
,
190 ipw
->is_v2_card
, signalled_reboot_callback
,
193 ret
= pcmcia_request_irq(link
, ipwireless_interrupt
);
197 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
": Card type %s\n",
198 ipw
->is_v2_card
? "V2/V3" : "V1");
199 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
200 ": I/O ports %pR, irq %d\n", link
->resource
[0],
201 (unsigned int) link
->irq
);
202 if (ipw
->attr_memory
&& ipw
->common_memory
)
203 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
204 ": attr memory 0x%08lx-0x%08lx, common memory 0x%08lx-0x%08lx\n",
205 ipw
->request_attr_memory
.Base
,
206 ipw
->request_attr_memory
.Base
207 + ipw
->request_attr_memory
.Size
- 1,
208 ipw
->request_common_memory
.Base
,
209 ipw
->request_common_memory
.Base
210 + ipw
->request_common_memory
.Size
- 1);
212 ipw
->network
= ipwireless_network_create(ipw
->hardware
);
216 ipw
->tty
= ipwireless_tty_create(ipw
->hardware
, ipw
->network
);
220 ipwireless_init_hardware_v2_v3(ipw
->hardware
);
223 * Do the RequestConfiguration last, because it enables interrupts.
224 * Then we don't get any interrupts before we're ready for them.
226 ret
= pcmcia_request_configuration(link
, &link
->conf
);
234 if (ipw
->attr_memory
) {
235 release_mem_region(ipw
->request_attr_memory
.Base
,
236 ipw
->request_attr_memory
.Size
);
237 iounmap(ipw
->attr_memory
);
240 if (ipw
->common_memory
) {
241 release_mem_region(ipw
->request_common_memory
.Base
,
242 ipw
->request_common_memory
.Size
);
243 iounmap(ipw
->common_memory
);
245 pcmcia_disable_device(link
);
249 static void release_ipwireless(struct ipw_dev
*ipw
)
251 if (ipw
->common_memory
) {
252 release_mem_region(ipw
->request_common_memory
.Base
,
253 ipw
->request_common_memory
.Size
);
254 iounmap(ipw
->common_memory
);
256 if (ipw
->attr_memory
) {
257 release_mem_region(ipw
->request_attr_memory
.Base
,
258 ipw
->request_attr_memory
.Size
);
259 iounmap(ipw
->attr_memory
);
261 pcmcia_disable_device(ipw
->link
);
265 * ipwireless_attach() creates an "instance" of the driver, allocating
266 * local data structures for one device (one interface). The device
267 * is registered with Card Services.
269 * The pcmcia_device structure is initialized, but we don't actually
270 * configure the card at this point -- we wait until we receive a
271 * card insertion event.
273 static int ipwireless_attach(struct pcmcia_device
*link
)
278 ipw
= kzalloc(sizeof(struct ipw_dev
), GFP_KERNEL
);
285 ipw
->hardware
= ipwireless_hardware_create();
286 if (!ipw
->hardware
) {
290 /* RegisterClient will call config_ipwireless */
292 ret
= config_ipwireless(ipw
);
295 ipwireless_detach(link
);
303 * This deletes a driver "instance". The device is de-registered with
304 * Card Services. If it has been released, all local data structures
305 * are freed. Otherwise, the structures will be freed when the device
308 static void ipwireless_detach(struct pcmcia_device
*link
)
310 struct ipw_dev
*ipw
= link
->priv
;
312 release_ipwireless(ipw
);
314 if (ipw
->tty
!= NULL
)
315 ipwireless_tty_free(ipw
->tty
);
316 if (ipw
->network
!= NULL
)
317 ipwireless_network_free(ipw
->network
);
318 if (ipw
->hardware
!= NULL
)
319 ipwireless_hardware_free(ipw
->hardware
);
323 static struct pcmcia_driver me
= {
324 .owner
= THIS_MODULE
,
325 .probe
= ipwireless_attach
,
326 .remove
= ipwireless_detach
,
327 .drv
= { .name
= IPWIRELESS_PCCARD_NAME
},
332 * Module insertion : initialisation of the module.
333 * Register the card with cardmgr...
335 static int __init
init_ipwireless(void)
339 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
" "
340 IPWIRELESS_PCMCIA_VERSION
" by " IPWIRELESS_PCMCIA_AUTHOR
"\n");
342 ret
= ipwireless_tty_init();
346 ret
= pcmcia_register_driver(&me
);
348 ipwireless_tty_release();
356 static void __exit
exit_ipwireless(void)
358 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
" "
359 IPWIRELESS_PCMCIA_VERSION
" removed\n");
361 pcmcia_unregister_driver(&me
);
362 ipwireless_tty_release();
365 module_init(init_ipwireless
);
366 module_exit(exit_ipwireless
);
368 MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR
);
369 MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME
" " IPWIRELESS_PCMCIA_VERSION
);
370 MODULE_LICENSE("GPL");