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
;
87 memreq_t memreq_attr_memory
;
88 memreq_t memreq_common_memory
;
91 p_dev
->resource
[0]->flags
|= IO_DATA_PATH_WIDTH_AUTO
;
92 p_dev
->resource
[0]->start
= cfg
->io
.win
[0].base
;
93 p_dev
->resource
[0]->end
= cfg
->io
.win
[0].len
;
95 /* 0x40 causes it to generate level mode interrupts. */
96 /* 0x04 enables IREQ pin. */
97 p_dev
->conf
.ConfigIndex
= cfg
->index
| 0x44;
99 ret
= pcmcia_request_io(p_dev
);
103 io_resource
= request_region(p_dev
->resource
[0]->start
,
104 resource_size(p_dev
->resource
[0]),
105 IPWIRELESS_PCCARD_NAME
);
107 if (cfg
->mem
.nwin
== 0)
110 ipw
->request_common_memory
.Attributes
=
111 WIN_DATA_WIDTH_16
| WIN_MEMORY_TYPE_CM
| WIN_ENABLE
;
112 ipw
->request_common_memory
.Base
= cfg
->mem
.win
[0].host_addr
;
113 ipw
->request_common_memory
.Size
= cfg
->mem
.win
[0].len
;
114 if (ipw
->request_common_memory
.Size
< 0x1000)
115 ipw
->request_common_memory
.Size
= 0x1000;
116 ipw
->request_common_memory
.AccessSpeed
= 0;
118 ret
= pcmcia_request_window(p_dev
, &ipw
->request_common_memory
,
119 &ipw
->handle_common_memory
);
124 memreq_common_memory
.CardOffset
= cfg
->mem
.win
[0].card_addr
;
125 memreq_common_memory
.Page
= 0;
127 ret
= pcmcia_map_mem_page(p_dev
, ipw
->handle_common_memory
,
128 &memreq_common_memory
);
133 ipw
->is_v2_card
= cfg
->mem
.win
[0].len
== 0x100;
135 ipw
->common_memory
= ioremap(ipw
->request_common_memory
.Base
,
136 ipw
->request_common_memory
.Size
);
137 request_mem_region(ipw
->request_common_memory
.Base
,
138 ipw
->request_common_memory
.Size
,
139 IPWIRELESS_PCCARD_NAME
);
141 ipw
->request_attr_memory
.Attributes
=
142 WIN_DATA_WIDTH_16
| WIN_MEMORY_TYPE_AM
| WIN_ENABLE
;
143 ipw
->request_attr_memory
.Base
= 0;
144 ipw
->request_attr_memory
.Size
= 0; /* this used to be 0x1000 */
145 ipw
->request_attr_memory
.AccessSpeed
= 0;
147 ret
= pcmcia_request_window(p_dev
, &ipw
->request_attr_memory
,
148 &ipw
->handle_attr_memory
);
153 memreq_attr_memory
.CardOffset
= 0;
154 memreq_attr_memory
.Page
= 0;
156 ret
= pcmcia_map_mem_page(p_dev
, ipw
->handle_attr_memory
,
157 &memreq_attr_memory
);
162 ipw
->attr_memory
= ioremap(ipw
->request_attr_memory
.Base
,
163 ipw
->request_attr_memory
.Size
);
164 request_mem_region(ipw
->request_attr_memory
.Base
,
165 ipw
->request_attr_memory
.Size
, IPWIRELESS_PCCARD_NAME
);
170 pcmcia_release_window(p_dev
, ipw
->handle_attr_memory
);
172 if (ipw
->common_memory
) {
173 release_mem_region(ipw
->request_common_memory
.Base
,
174 ipw
->request_common_memory
.Size
);
175 iounmap(ipw
->common_memory
);
176 pcmcia_release_window(p_dev
, ipw
->handle_common_memory
);
178 pcmcia_release_window(p_dev
, ipw
->handle_common_memory
);
180 release_resource(io_resource
);
181 pcmcia_disable_device(p_dev
);
185 static int config_ipwireless(struct ipw_dev
*ipw
)
187 struct pcmcia_device
*link
= ipw
->link
;
192 ret
= pcmcia_loop_config(link
, ipwireless_probe
, ipw
);
196 link
->conf
.Attributes
= CONF_ENABLE_IRQ
;
197 link
->conf
.IntType
= INT_MEMORY_AND_IO
;
199 INIT_WORK(&ipw
->work_reboot
, signalled_reboot_work
);
201 ipwireless_init_hardware_v1(ipw
->hardware
, link
->resource
[0]->start
,
202 ipw
->attr_memory
, ipw
->common_memory
,
203 ipw
->is_v2_card
, signalled_reboot_callback
,
206 ret
= pcmcia_request_irq(link
, ipwireless_interrupt
);
210 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
": Card type %s\n",
211 ipw
->is_v2_card
? "V2/V3" : "V1");
212 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
213 ": I/O ports %pR, irq %d\n", link
->resource
[0],
214 (unsigned int) link
->irq
);
215 if (ipw
->attr_memory
&& ipw
->common_memory
)
216 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
217 ": attr memory 0x%08lx-0x%08lx, common memory 0x%08lx-0x%08lx\n",
218 ipw
->request_attr_memory
.Base
,
219 ipw
->request_attr_memory
.Base
220 + ipw
->request_attr_memory
.Size
- 1,
221 ipw
->request_common_memory
.Base
,
222 ipw
->request_common_memory
.Base
223 + ipw
->request_common_memory
.Size
- 1);
225 ipw
->network
= ipwireless_network_create(ipw
->hardware
);
229 ipw
->tty
= ipwireless_tty_create(ipw
->hardware
, ipw
->network
);
233 ipwireless_init_hardware_v2_v3(ipw
->hardware
);
236 * Do the RequestConfiguration last, because it enables interrupts.
237 * Then we don't get any interrupts before we're ready for them.
239 ret
= pcmcia_request_configuration(link
, &link
->conf
);
247 if (ipw
->attr_memory
) {
248 release_mem_region(ipw
->request_attr_memory
.Base
,
249 ipw
->request_attr_memory
.Size
);
250 iounmap(ipw
->attr_memory
);
251 pcmcia_release_window(link
, ipw
->handle_attr_memory
);
253 if (ipw
->common_memory
) {
254 release_mem_region(ipw
->request_common_memory
.Base
,
255 ipw
->request_common_memory
.Size
);
256 iounmap(ipw
->common_memory
);
257 pcmcia_release_window(link
, ipw
->handle_common_memory
);
259 pcmcia_disable_device(link
);
263 static void release_ipwireless(struct ipw_dev
*ipw
)
265 if (ipw
->common_memory
) {
266 release_mem_region(ipw
->request_common_memory
.Base
,
267 ipw
->request_common_memory
.Size
);
268 iounmap(ipw
->common_memory
);
270 if (ipw
->attr_memory
) {
271 release_mem_region(ipw
->request_attr_memory
.Base
,
272 ipw
->request_attr_memory
.Size
);
273 iounmap(ipw
->attr_memory
);
275 if (ipw
->common_memory
)
276 pcmcia_release_window(ipw
->link
, ipw
->handle_common_memory
);
277 if (ipw
->attr_memory
)
278 pcmcia_release_window(ipw
->link
, ipw
->handle_attr_memory
);
280 pcmcia_disable_device(ipw
->link
);
284 * ipwireless_attach() creates an "instance" of the driver, allocating
285 * local data structures for one device (one interface). The device
286 * is registered with Card Services.
288 * The pcmcia_device structure is initialized, but we don't actually
289 * configure the card at this point -- we wait until we receive a
290 * card insertion event.
292 static int ipwireless_attach(struct pcmcia_device
*link
)
297 ipw
= kzalloc(sizeof(struct ipw_dev
), GFP_KERNEL
);
304 ipw
->hardware
= ipwireless_hardware_create();
305 if (!ipw
->hardware
) {
309 /* RegisterClient will call config_ipwireless */
311 ret
= config_ipwireless(ipw
);
314 ipwireless_detach(link
);
322 * This deletes a driver "instance". The device is de-registered with
323 * Card Services. If it has been released, all local data structures
324 * are freed. Otherwise, the structures will be freed when the device
327 static void ipwireless_detach(struct pcmcia_device
*link
)
329 struct ipw_dev
*ipw
= link
->priv
;
331 release_ipwireless(ipw
);
333 if (ipw
->tty
!= NULL
)
334 ipwireless_tty_free(ipw
->tty
);
335 if (ipw
->network
!= NULL
)
336 ipwireless_network_free(ipw
->network
);
337 if (ipw
->hardware
!= NULL
)
338 ipwireless_hardware_free(ipw
->hardware
);
342 static struct pcmcia_driver me
= {
343 .owner
= THIS_MODULE
,
344 .probe
= ipwireless_attach
,
345 .remove
= ipwireless_detach
,
346 .drv
= { .name
= IPWIRELESS_PCCARD_NAME
},
351 * Module insertion : initialisation of the module.
352 * Register the card with cardmgr...
354 static int __init
init_ipwireless(void)
358 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
" "
359 IPWIRELESS_PCMCIA_VERSION
" by " IPWIRELESS_PCMCIA_AUTHOR
"\n");
361 ret
= ipwireless_tty_init();
365 ret
= pcmcia_register_driver(&me
);
367 ipwireless_tty_release();
375 static void __exit
exit_ipwireless(void)
377 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
" "
378 IPWIRELESS_PCMCIA_VERSION
" removed\n");
380 pcmcia_unregister_driver(&me
);
381 ipwireless_tty_release();
384 module_init(init_ipwireless
);
385 module_exit(exit_ipwireless
);
387 MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR
);
388 MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME
" " IPWIRELESS_PCMCIA_VERSION
);
389 MODULE_LICENSE("GPL");