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>
36 static const struct pcmcia_device_id ipw_ids[] = {
37 PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0100),
38 PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0200),
41 MODULE_DEVICE_TABLE(pcmcia, ipw_ids);
43 static void ipwireless_detach(struct pcmcia_device *link);
48 /* Debug mode: more verbose, print sent/recv bytes */
50 int ipwireless_loopback;
51 int ipwireless_out_queue = 10;
53 module_param_named(debug, ipwireless_debug, int, 0);
54 module_param_named(loopback, ipwireless_loopback, int, 0);
55 module_param_named(out_queue, ipwireless_out_queue, int, 0);
56 MODULE_PARM_DESC(debug, "switch on debug messages [0]");
57 MODULE_PARM_DESC(loopback,
58 "debug: enable ras_raw channel [0]");
59 MODULE_PARM_DESC(out_queue, "debug: set size of outgoing PPP queue [10]");
61 /* Executes in process context. */
62 static void signalled_reboot_work(struct work_struct *work_reboot)
64 struct ipw_dev *ipw = container_of(work_reboot, struct ipw_dev,
66 struct pcmcia_device *link = ipw->link;
67 pcmcia_reset_card(link->socket);
70 static void signalled_reboot_callback(void *callback_data)
72 struct ipw_dev *ipw = (struct ipw_dev *) callback_data;
74 /* Delegate to process context. */
75 schedule_work(&ipw->work_reboot);
78 static int ipwireless_probe(struct pcmcia_device *p_dev, void *priv_data)
80 struct ipw_dev *ipw = priv_data;
83 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
84 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
86 /* 0x40 causes it to generate level mode interrupts. */
87 /* 0x04 enables IREQ pin. */
88 p_dev->config_index |= 0x44;
90 ret = pcmcia_request_io(p_dev);
94 if (!request_region(p_dev->resource[0]->start,
95 resource_size(p_dev->resource[0]),
96 IPWIRELESS_PCCARD_NAME)) {
101 p_dev->resource[2]->flags |=
102 WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
104 ret = pcmcia_request_window(p_dev, p_dev->resource[2], 0);
108 ret = pcmcia_map_mem_page(p_dev, p_dev->resource[2], p_dev->card_addr);
112 ipw->is_v2_card = resource_size(p_dev->resource[2]) == 0x100;
114 ipw->common_memory = ioremap(p_dev->resource[2]->start,
115 resource_size(p_dev->resource[2]));
116 if (!ipw->common_memory) {
120 if (!request_mem_region(p_dev->resource[2]->start,
121 resource_size(p_dev->resource[2]),
122 IPWIRELESS_PCCARD_NAME)) {
127 p_dev->resource[3]->flags |= WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM |
129 p_dev->resource[3]->end = 0; /* this used to be 0x1000 */
130 ret = pcmcia_request_window(p_dev, p_dev->resource[3], 0);
134 ret = pcmcia_map_mem_page(p_dev, p_dev->resource[3], 0);
138 ipw->attr_memory = ioremap(p_dev->resource[3]->start,
139 resource_size(p_dev->resource[3]));
140 if (!ipw->attr_memory) {
144 if (!request_mem_region(p_dev->resource[3]->start,
145 resource_size(p_dev->resource[3]),
146 IPWIRELESS_PCCARD_NAME)) {
154 iounmap(ipw->attr_memory);
156 release_mem_region(p_dev->resource[2]->start,
157 resource_size(p_dev->resource[2]));
159 iounmap(ipw->common_memory);
161 release_region(p_dev->resource[0]->start,
162 resource_size(p_dev->resource[0]));
164 pcmcia_disable_device(p_dev);
168 static int config_ipwireless(struct ipw_dev *ipw)
170 struct pcmcia_device *link = ipw->link;
174 link->config_flags |= CONF_AUTO_SET_IO | CONF_AUTO_SET_IOMEM |
177 ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
181 INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
183 ipwireless_init_hardware_v1(ipw->hardware, link->resource[0]->start,
184 ipw->attr_memory, ipw->common_memory,
185 ipw->is_v2_card, signalled_reboot_callback,
188 ret = pcmcia_request_irq(link, ipwireless_interrupt);
192 printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
193 ipw->is_v2_card ? "V2/V3" : "V1");
194 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
195 ": I/O ports %pR, irq %d\n", link->resource[0],
196 (unsigned int) link->irq);
197 if (ipw->attr_memory && ipw->common_memory)
198 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
199 ": attr memory %pR, common memory %pR\n",
203 ipw->network = ipwireless_network_create(ipw->hardware);
207 ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network);
211 ipwireless_init_hardware_v2_v3(ipw->hardware);
214 * Do the RequestConfiguration last, because it enables interrupts.
215 * Then we don't get any interrupts before we're ready for them.
217 ret = pcmcia_enable_device(link);
224 if (ipw->common_memory) {
225 release_mem_region(link->resource[2]->start,
226 resource_size(link->resource[2]));
227 iounmap(ipw->common_memory);
229 if (ipw->attr_memory) {
230 release_mem_region(link->resource[3]->start,
231 resource_size(link->resource[3]));
232 iounmap(ipw->attr_memory);
234 pcmcia_disable_device(link);
238 static void release_ipwireless(struct ipw_dev *ipw)
240 release_region(ipw->link->resource[0]->start,
241 resource_size(ipw->link->resource[0]));
242 if (ipw->common_memory) {
243 release_mem_region(ipw->link->resource[2]->start,
244 resource_size(ipw->link->resource[2]));
245 iounmap(ipw->common_memory);
247 if (ipw->attr_memory) {
248 release_mem_region(ipw->link->resource[3]->start,
249 resource_size(ipw->link->resource[3]));
250 iounmap(ipw->attr_memory);
252 pcmcia_disable_device(ipw->link);
256 * ipwireless_attach() creates an "instance" of the driver, allocating
257 * local data structures for one device (one interface). The device
258 * is registered with Card Services.
260 * The pcmcia_device structure is initialized, but we don't actually
261 * configure the card at this point -- we wait until we receive a
262 * card insertion event.
264 static int ipwireless_attach(struct pcmcia_device *link)
269 ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL);
276 ipw->hardware = ipwireless_hardware_create();
277 if (!ipw->hardware) {
281 /* RegisterClient will call config_ipwireless */
283 ret = config_ipwireless(ipw);
286 ipwireless_detach(link);
294 * This deletes a driver "instance". The device is de-registered with
295 * Card Services. If it has been released, all local data structures
296 * are freed. Otherwise, the structures will be freed when the device
299 static void ipwireless_detach(struct pcmcia_device *link)
301 struct ipw_dev *ipw = link->priv;
303 release_ipwireless(ipw);
305 if (ipw->tty != NULL)
306 ipwireless_tty_free(ipw->tty);
307 if (ipw->network != NULL)
308 ipwireless_network_free(ipw->network);
309 if (ipw->hardware != NULL)
310 ipwireless_hardware_free(ipw->hardware);
314 static struct pcmcia_driver me = {
315 .owner = THIS_MODULE,
316 .probe = ipwireless_attach,
317 .remove = ipwireless_detach,
318 .name = IPWIRELESS_PCCARD_NAME,
323 * Module insertion : initialisation of the module.
324 * Register the card with cardmgr...
326 static int __init init_ipwireless(void)
330 ret = ipwireless_tty_init();
334 ret = pcmcia_register_driver(&me);
336 ipwireless_tty_release();
344 static void __exit exit_ipwireless(void)
346 pcmcia_unregister_driver(&me);
347 ipwireless_tty_release();
350 module_init(init_ipwireless);
351 module_exit(exit_ipwireless);
353 MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR);
354 MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION);
355 MODULE_LICENSE("GPL");