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 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;
81 struct resource *io_resource;
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 io_resource = request_region(p_dev->resource[0]->start,
96 resource_size(p_dev->resource[0]),
97 IPWIRELESS_PCCARD_NAME);
99 p_dev->resource[2]->flags |=
100 WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
102 ret = pcmcia_request_window(p_dev, p_dev->resource[2], 0);
106 ret = pcmcia_map_mem_page(p_dev, p_dev->resource[2], p_dev->card_addr);
110 ipw->is_v2_card = resource_size(p_dev->resource[2]) == 0x100;
112 ipw->attr_memory = ioremap(p_dev->resource[2]->start,
113 resource_size(p_dev->resource[2]));
114 request_mem_region(p_dev->resource[2]->start,
115 resource_size(p_dev->resource[2]),
116 IPWIRELESS_PCCARD_NAME);
118 p_dev->resource[3]->flags |= WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM |
120 p_dev->resource[3]->end = 0; /* this used to be 0x1000 */
121 ret = pcmcia_request_window(p_dev, p_dev->resource[3], 0);
125 ret = pcmcia_map_mem_page(p_dev, p_dev->resource[3], 0);
129 ipw->attr_memory = ioremap(p_dev->resource[3]->start,
130 resource_size(p_dev->resource[3]));
131 request_mem_region(p_dev->resource[3]->start,
132 resource_size(p_dev->resource[3]),
133 IPWIRELESS_PCCARD_NAME);
139 if (ipw->common_memory) {
140 release_mem_region(p_dev->resource[2]->start,
141 resource_size(p_dev->resource[2]));
142 iounmap(ipw->common_memory);
145 release_resource(io_resource);
146 pcmcia_disable_device(p_dev);
150 static int config_ipwireless(struct ipw_dev *ipw)
152 struct pcmcia_device *link = ipw->link;
156 link->config_flags |= CONF_AUTO_SET_IO | CONF_AUTO_SET_IOMEM |
159 ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
163 INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
165 ipwireless_init_hardware_v1(ipw->hardware, link->resource[0]->start,
166 ipw->attr_memory, ipw->common_memory,
167 ipw->is_v2_card, signalled_reboot_callback,
170 ret = pcmcia_request_irq(link, ipwireless_interrupt);
174 printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
175 ipw->is_v2_card ? "V2/V3" : "V1");
176 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
177 ": I/O ports %pR, irq %d\n", link->resource[0],
178 (unsigned int) link->irq);
179 if (ipw->attr_memory && ipw->common_memory)
180 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
181 ": attr memory %pR, common memory %pR\n",
185 ipw->network = ipwireless_network_create(ipw->hardware);
189 ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network);
193 ipwireless_init_hardware_v2_v3(ipw->hardware);
196 * Do the RequestConfiguration last, because it enables interrupts.
197 * Then we don't get any interrupts before we're ready for them.
199 ret = pcmcia_enable_device(link);
206 if (ipw->common_memory) {
207 release_mem_region(link->resource[2]->start,
208 resource_size(link->resource[2]));
209 iounmap(ipw->common_memory);
211 if (ipw->attr_memory) {
212 release_mem_region(link->resource[3]->start,
213 resource_size(link->resource[3]));
214 iounmap(ipw->attr_memory);
216 pcmcia_disable_device(link);
220 static void release_ipwireless(struct ipw_dev *ipw)
222 if (ipw->common_memory) {
223 release_mem_region(ipw->link->resource[2]->start,
224 resource_size(ipw->link->resource[2]));
225 iounmap(ipw->common_memory);
227 if (ipw->attr_memory) {
228 release_mem_region(ipw->link->resource[3]->start,
229 resource_size(ipw->link->resource[3]));
230 iounmap(ipw->attr_memory);
232 pcmcia_disable_device(ipw->link);
236 * ipwireless_attach() creates an "instance" of the driver, allocating
237 * local data structures for one device (one interface). The device
238 * is registered with Card Services.
240 * The pcmcia_device structure is initialized, but we don't actually
241 * configure the card at this point -- we wait until we receive a
242 * card insertion event.
244 static int ipwireless_attach(struct pcmcia_device *link)
249 ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL);
256 ipw->hardware = ipwireless_hardware_create();
257 if (!ipw->hardware) {
261 /* RegisterClient will call config_ipwireless */
263 ret = config_ipwireless(ipw);
266 ipwireless_detach(link);
274 * This deletes a driver "instance". The device is de-registered with
275 * Card Services. If it has been released, all local data structures
276 * are freed. Otherwise, the structures will be freed when the device
279 static void ipwireless_detach(struct pcmcia_device *link)
281 struct ipw_dev *ipw = link->priv;
283 release_ipwireless(ipw);
285 if (ipw->tty != NULL)
286 ipwireless_tty_free(ipw->tty);
287 if (ipw->network != NULL)
288 ipwireless_network_free(ipw->network);
289 if (ipw->hardware != NULL)
290 ipwireless_hardware_free(ipw->hardware);
294 static struct pcmcia_driver me = {
295 .owner = THIS_MODULE,
296 .probe = ipwireless_attach,
297 .remove = ipwireless_detach,
298 .name = IPWIRELESS_PCCARD_NAME,
303 * Module insertion : initialisation of the module.
304 * Register the card with cardmgr...
306 static int __init init_ipwireless(void)
310 ret = ipwireless_tty_init();
314 ret = pcmcia_register_driver(&me);
316 ipwireless_tty_release();
324 static void __exit exit_ipwireless(void)
326 pcmcia_unregister_driver(&me);
327 ipwireless_tty_release();
330 module_init(init_ipwireless);
331 module_exit(exit_ipwireless);
333 MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR);
334 MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION);
335 MODULE_LICENSE("GPL");