1 // SPDX-License-Identifier: GPL-2.0
3 * IPWireless 3G PCMCIA Network Driver
6 * by Stephen Blackheath <stephen@blacksapphire.com>,
7 * Ben Martel <benm@symmetric.co.nz>
9 * Copyrighted as follows:
10 * Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
12 * Various driver changes and rewrites, port to new kernels
13 * Copyright (C) 2006-2007 Jiri Kosina
15 * Misc code cleanups and updates
16 * Copyright (C) 2007 David Sterba
24 #include <linux/delay.h>
25 #include <linux/init.h>
27 #include <linux/kernel.h>
28 #include <linux/module.h>
29 #include <linux/sched.h>
30 #include <linux/slab.h>
32 #include <pcmcia/cisreg.h>
33 #include <pcmcia/device_id.h>
34 #include <pcmcia/ss.h>
35 #include <pcmcia/ds.h>
37 static const 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
, void *priv_data
)
81 struct ipw_dev
*ipw
= priv_data
;
84 p_dev
->resource
[0]->flags
&= ~IO_DATA_PATH_WIDTH
;
85 p_dev
->resource
[0]->flags
|= IO_DATA_PATH_WIDTH_AUTO
;
87 /* 0x40 causes it to generate level mode interrupts. */
88 /* 0x04 enables IREQ pin. */
89 p_dev
->config_index
|= 0x44;
91 ret
= pcmcia_request_io(p_dev
);
95 if (!request_region(p_dev
->resource
[0]->start
,
96 resource_size(p_dev
->resource
[0]),
97 IPWIRELESS_PCCARD_NAME
)) {
102 p_dev
->resource
[2]->flags
|=
103 WIN_DATA_WIDTH_16
| WIN_MEMORY_TYPE_CM
| WIN_ENABLE
;
105 ret
= pcmcia_request_window(p_dev
, p_dev
->resource
[2], 0);
109 ret
= pcmcia_map_mem_page(p_dev
, p_dev
->resource
[2], p_dev
->card_addr
);
113 ipw
->is_v2_card
= resource_size(p_dev
->resource
[2]) == 0x100;
115 ipw
->common_memory
= ioremap(p_dev
->resource
[2]->start
,
116 resource_size(p_dev
->resource
[2]));
117 if (!request_mem_region(p_dev
->resource
[2]->start
,
118 resource_size(p_dev
->resource
[2]),
119 IPWIRELESS_PCCARD_NAME
)) {
124 p_dev
->resource
[3]->flags
|= WIN_DATA_WIDTH_16
| WIN_MEMORY_TYPE_AM
|
126 p_dev
->resource
[3]->end
= 0; /* this used to be 0x1000 */
127 ret
= pcmcia_request_window(p_dev
, p_dev
->resource
[3], 0);
131 ret
= pcmcia_map_mem_page(p_dev
, p_dev
->resource
[3], 0);
135 ipw
->attr_memory
= ioremap(p_dev
->resource
[3]->start
,
136 resource_size(p_dev
->resource
[3]));
137 if (!request_mem_region(p_dev
->resource
[3]->start
,
138 resource_size(p_dev
->resource
[3]),
139 IPWIRELESS_PCCARD_NAME
)) {
147 iounmap(ipw
->attr_memory
);
149 release_mem_region(p_dev
->resource
[2]->start
,
150 resource_size(p_dev
->resource
[2]));
152 iounmap(ipw
->common_memory
);
154 release_region(p_dev
->resource
[0]->start
,
155 resource_size(p_dev
->resource
[0]));
157 pcmcia_disable_device(p_dev
);
161 static int config_ipwireless(struct ipw_dev
*ipw
)
163 struct pcmcia_device
*link
= ipw
->link
;
167 link
->config_flags
|= CONF_AUTO_SET_IO
| CONF_AUTO_SET_IOMEM
|
170 ret
= pcmcia_loop_config(link
, ipwireless_probe
, ipw
);
174 INIT_WORK(&ipw
->work_reboot
, signalled_reboot_work
);
176 ipwireless_init_hardware_v1(ipw
->hardware
, link
->resource
[0]->start
,
177 ipw
->attr_memory
, ipw
->common_memory
,
178 ipw
->is_v2_card
, signalled_reboot_callback
,
181 ret
= pcmcia_request_irq(link
, ipwireless_interrupt
);
185 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
": Card type %s\n",
186 ipw
->is_v2_card
? "V2/V3" : "V1");
187 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
188 ": I/O ports %pR, irq %d\n", link
->resource
[0],
189 (unsigned int) link
->irq
);
190 if (ipw
->attr_memory
&& ipw
->common_memory
)
191 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
192 ": attr memory %pR, common memory %pR\n",
196 ipw
->network
= ipwireless_network_create(ipw
->hardware
);
200 ipw
->tty
= ipwireless_tty_create(ipw
->hardware
, ipw
->network
);
204 ipwireless_init_hardware_v2_v3(ipw
->hardware
);
207 * Do the RequestConfiguration last, because it enables interrupts.
208 * Then we don't get any interrupts before we're ready for them.
210 ret
= pcmcia_enable_device(link
);
217 if (ipw
->common_memory
) {
218 release_mem_region(link
->resource
[2]->start
,
219 resource_size(link
->resource
[2]));
220 iounmap(ipw
->common_memory
);
222 if (ipw
->attr_memory
) {
223 release_mem_region(link
->resource
[3]->start
,
224 resource_size(link
->resource
[3]));
225 iounmap(ipw
->attr_memory
);
227 pcmcia_disable_device(link
);
231 static void release_ipwireless(struct ipw_dev
*ipw
)
233 release_region(ipw
->link
->resource
[0]->start
,
234 resource_size(ipw
->link
->resource
[0]));
235 if (ipw
->common_memory
) {
236 release_mem_region(ipw
->link
->resource
[2]->start
,
237 resource_size(ipw
->link
->resource
[2]));
238 iounmap(ipw
->common_memory
);
240 if (ipw
->attr_memory
) {
241 release_mem_region(ipw
->link
->resource
[3]->start
,
242 resource_size(ipw
->link
->resource
[3]));
243 iounmap(ipw
->attr_memory
);
245 pcmcia_disable_device(ipw
->link
);
249 * ipwireless_attach() creates an "instance" of the driver, allocating
250 * local data structures for one device (one interface). The device
251 * is registered with Card Services.
253 * The pcmcia_device structure is initialized, but we don't actually
254 * configure the card at this point -- we wait until we receive a
255 * card insertion event.
257 static int ipwireless_attach(struct pcmcia_device
*link
)
262 ipw
= kzalloc(sizeof(struct ipw_dev
), GFP_KERNEL
);
269 ipw
->hardware
= ipwireless_hardware_create();
270 if (!ipw
->hardware
) {
274 /* RegisterClient will call config_ipwireless */
276 ret
= config_ipwireless(ipw
);
279 ipwireless_detach(link
);
287 * This deletes a driver "instance". The device is de-registered with
288 * Card Services. If it has been released, all local data structures
289 * are freed. Otherwise, the structures will be freed when the device
292 static void ipwireless_detach(struct pcmcia_device
*link
)
294 struct ipw_dev
*ipw
= link
->priv
;
296 release_ipwireless(ipw
);
298 if (ipw
->tty
!= NULL
)
299 ipwireless_tty_free(ipw
->tty
);
300 if (ipw
->network
!= NULL
)
301 ipwireless_network_free(ipw
->network
);
302 if (ipw
->hardware
!= NULL
)
303 ipwireless_hardware_free(ipw
->hardware
);
307 static struct pcmcia_driver me
= {
308 .owner
= THIS_MODULE
,
309 .probe
= ipwireless_attach
,
310 .remove
= ipwireless_detach
,
311 .name
= IPWIRELESS_PCCARD_NAME
,
316 * Module insertion : initialisation of the module.
317 * Register the card with cardmgr...
319 static int __init
init_ipwireless(void)
323 ret
= ipwireless_tty_init();
327 ret
= pcmcia_register_driver(&me
);
329 ipwireless_tty_release();
337 static void __exit
exit_ipwireless(void)
339 pcmcia_unregister_driver(&me
);
340 ipwireless_tty_release();
343 module_init(init_ipwireless
);
344 module_exit(exit_ipwireless
);
346 MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR
);
347 MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME
" " IPWIRELESS_PCMCIA_VERSION
);
348 MODULE_LICENSE("GPL");