Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6-block.git] / drivers / tty / ipwireless / main.c
CommitLineData
e3b3d0f5 1// SPDX-License-Identifier: GPL-2.0
099dc4fb
DS
2/*
3 * IPWireless 3G PCMCIA Network Driver
4 *
5 * Original code
6 * by Stephen Blackheath <stephen@blacksapphire.com>,
7 * Ben Martel <benm@symmetric.co.nz>
8 *
9 * Copyrighted as follows:
10 * Copyright (C) 2004 by Symmetric Systems Ltd (NZ)
11 *
12 * Various driver changes and rewrites, port to new kernels
13 * Copyright (C) 2006-2007 Jiri Kosina
14 *
15 * Misc code cleanups and updates
16 * Copyright (C) 2007 David Sterba
17 */
18
19#include "hardware.h"
20#include "network.h"
21#include "main.h"
22#include "tty.h"
23
24#include <linux/delay.h>
25#include <linux/init.h>
26#include <linux/io.h>
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/sched.h>
30#include <linux/slab.h>
31
099dc4fb
DS
32#include <pcmcia/cisreg.h>
33#include <pcmcia/device_id.h>
34#include <pcmcia/ss.h>
35#include <pcmcia/ds.h>
099dc4fb 36
25f8f54f 37static const struct pcmcia_device_id ipw_ids[] = {
099dc4fb
DS
38 PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0100),
39 PCMCIA_DEVICE_MANF_CARD(0x02f2, 0x0200),
40 PCMCIA_DEVICE_NULL
41};
42MODULE_DEVICE_TABLE(pcmcia, ipw_ids);
43
44static void ipwireless_detach(struct pcmcia_device *link);
45
46/*
47 * Module params
48 */
49/* Debug mode: more verbose, print sent/recv bytes */
50int ipwireless_debug;
51int ipwireless_loopback;
bee9c7c0 52int ipwireless_out_queue = 10;
099dc4fb
DS
53
54module_param_named(debug, ipwireless_debug, int, 0);
55module_param_named(loopback, ipwireless_loopback, int, 0);
56module_param_named(out_queue, ipwireless_out_queue, int, 0);
57MODULE_PARM_DESC(debug, "switch on debug messages [0]");
58MODULE_PARM_DESC(loopback,
59 "debug: enable ras_raw channel [0]");
bee9c7c0 60MODULE_PARM_DESC(out_queue, "debug: set size of outgoing PPP queue [10]");
099dc4fb
DS
61
62/* Executes in process context. */
63static void signalled_reboot_work(struct work_struct *work_reboot)
64{
65 struct ipw_dev *ipw = container_of(work_reboot, struct ipw_dev,
66 work_reboot);
67 struct pcmcia_device *link = ipw->link;
cbf624f0 68 pcmcia_reset_card(link->socket);
099dc4fb
DS
69}
70
71static void signalled_reboot_callback(void *callback_data)
72{
73 struct ipw_dev *ipw = (struct ipw_dev *) callback_data;
74
75 /* Delegate to process context. */
76 schedule_work(&ipw->work_reboot);
77}
78
00990e7c 79static int ipwireless_probe(struct pcmcia_device *p_dev, void *priv_data)
aaa8cfda 80{
af757923 81 struct ipw_dev *ipw = priv_data;
af757923
DB
82 int ret;
83
00990e7c 84 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
90abdc3b 85 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
aaa8cfda 86
aaa8cfda
DB
87 /* 0x40 causes it to generate level mode interrupts. */
88 /* 0x04 enables IREQ pin. */
00990e7c 89 p_dev->config_index |= 0x44;
90abdc3b
DB
90 p_dev->io_lines = 16;
91 ret = pcmcia_request_io(p_dev);
af757923
DB
92 if (ret)
93 return ret;
aaa8cfda 94
d5bb2923
JL
95 if (!request_region(p_dev->resource[0]->start,
96 resource_size(p_dev->resource[0]),
97 IPWIRELESS_PCCARD_NAME)) {
98 ret = -EBUSY;
99 goto exit;
100 }
099dc4fb 101
cdb13808 102 p_dev->resource[2]->flags |=
af757923 103 WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
099dc4fb 104
cdb13808 105 ret = pcmcia_request_window(p_dev, p_dev->resource[2], 0);
cbf624f0 106 if (ret != 0)
af757923 107 goto exit1;
099dc4fb 108
00990e7c 109 ret = pcmcia_map_mem_page(p_dev, p_dev->resource[2], p_dev->card_addr);
cbf624f0 110 if (ret != 0)
d5bb2923 111 goto exit1;
099dc4fb 112
00990e7c 113 ipw->is_v2_card = resource_size(p_dev->resource[2]) == 0x100;
099dc4fb 114
d5bb2923 115 ipw->common_memory = ioremap(p_dev->resource[2]->start,
cdb13808 116 resource_size(p_dev->resource[2]));
d5bb2923
JL
117 if (!request_mem_region(p_dev->resource[2]->start,
118 resource_size(p_dev->resource[2]),
119 IPWIRELESS_PCCARD_NAME)) {
120 ret = -EBUSY;
121 goto exit2;
122 }
af757923 123
cdb13808
DB
124 p_dev->resource[3]->flags |= WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM |
125 WIN_ENABLE;
126 p_dev->resource[3]->end = 0; /* this used to be 0x1000 */
127 ret = pcmcia_request_window(p_dev, p_dev->resource[3], 0);
cbf624f0 128 if (ret != 0)
d5bb2923 129 goto exit3;
099dc4fb 130
cdb13808 131 ret = pcmcia_map_mem_page(p_dev, p_dev->resource[3], 0);
cbf624f0 132 if (ret != 0)
af757923 133 goto exit3;
099dc4fb 134
cdb13808
DB
135 ipw->attr_memory = ioremap(p_dev->resource[3]->start,
136 resource_size(p_dev->resource[3]));
d5bb2923
JL
137 if (!request_mem_region(p_dev->resource[3]->start,
138 resource_size(p_dev->resource[3]),
139 IPWIRELESS_PCCARD_NAME)) {
140 ret = -EBUSY;
141 goto exit4;
142 }
099dc4fb 143
af757923 144 return 0;
099dc4fb 145
d5bb2923
JL
146exit4:
147 iounmap(ipw->attr_memory);
af757923 148exit3:
d5bb2923
JL
149 release_mem_region(p_dev->resource[2]->start,
150 resource_size(p_dev->resource[2]));
af757923 151exit2:
d5bb2923 152 iounmap(ipw->common_memory);
af757923 153exit1:
d5bb2923
JL
154 release_region(p_dev->resource[0]->start,
155 resource_size(p_dev->resource[0]));
156exit:
af757923 157 pcmcia_disable_device(p_dev);
d5bb2923 158 return ret;
af757923 159}
099dc4fb 160
af757923
DB
161static int config_ipwireless(struct ipw_dev *ipw)
162{
163 struct pcmcia_device *link = ipw->link;
164 int ret = 0;
099dc4fb 165
af757923 166 ipw->is_v2_card = 0;
00990e7c
DB
167 link->config_flags |= CONF_AUTO_SET_IO | CONF_AUTO_SET_IOMEM |
168 CONF_ENABLE_IRQ;
099dc4fb 169
af757923 170 ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
cbf624f0 171 if (ret != 0)
af757923 172 return ret;
099dc4fb 173
099dc4fb
DS
174 INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
175
9a017a91 176 ipwireless_init_hardware_v1(ipw->hardware, link->resource[0]->start,
099dc4fb
DS
177 ipw->attr_memory, ipw->common_memory,
178 ipw->is_v2_card, signalled_reboot_callback,
179 ipw);
180
eb14120f 181 ret = pcmcia_request_irq(link, ipwireless_interrupt);
cbf624f0 182 if (ret != 0)
af757923 183 goto exit;
099dc4fb 184
099dc4fb
DS
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
9a017a91 188 ": I/O ports %pR, irq %d\n", link->resource[0],
eb14120f 189 (unsigned int) link->irq);
099dc4fb
DS
190 if (ipw->attr_memory && ipw->common_memory)
191 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
cdb13808
DB
192 ": attr memory %pR, common memory %pR\n",
193 link->resource[3],
194 link->resource[2]);
099dc4fb
DS
195
196 ipw->network = ipwireless_network_create(ipw->hardware);
197 if (!ipw->network)
af757923 198 goto exit;
099dc4fb 199
b498ada6 200 ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network);
099dc4fb 201 if (!ipw->tty)
af757923 202 goto exit;
099dc4fb
DS
203
204 ipwireless_init_hardware_v2_v3(ipw->hardware);
205
206 /*
207 * Do the RequestConfiguration last, because it enables interrupts.
208 * Then we don't get any interrupts before we're ready for them.
209 */
1ac71e5a 210 ret = pcmcia_enable_device(link);
cbf624f0 211 if (ret != 0)
af757923 212 goto exit;
099dc4fb 213
099dc4fb
DS
214 return 0;
215
af757923 216exit:
099dc4fb 217 if (ipw->common_memory) {
cdb13808
DB
218 release_mem_region(link->resource[2]->start,
219 resource_size(link->resource[2]));
099dc4fb 220 iounmap(ipw->common_memory);
099dc4fb 221 }
cdb13808
DB
222 if (ipw->attr_memory) {
223 release_mem_region(link->resource[3]->start,
224 resource_size(link->resource[3]));
225 iounmap(ipw->attr_memory);
226 }
099dc4fb 227 pcmcia_disable_device(link);
099dc4fb
DS
228 return -1;
229}
230
231static void release_ipwireless(struct ipw_dev *ipw)
232{
d5bb2923
JL
233 release_region(ipw->link->resource[0]->start,
234 resource_size(ipw->link->resource[0]));
09e491e9 235 if (ipw->common_memory) {
cdb13808
DB
236 release_mem_region(ipw->link->resource[2]->start,
237 resource_size(ipw->link->resource[2]));
099dc4fb 238 iounmap(ipw->common_memory);
09e491e9
DS
239 }
240 if (ipw->attr_memory) {
cdb13808
DB
241 release_mem_region(ipw->link->resource[3]->start,
242 resource_size(ipw->link->resource[3]));
099dc4fb 243 iounmap(ipw->attr_memory);
09e491e9 244 }
09e491e9 245 pcmcia_disable_device(ipw->link);
099dc4fb
DS
246}
247
248/*
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.
252 *
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.
256 */
257static int ipwireless_attach(struct pcmcia_device *link)
258{
259 struct ipw_dev *ipw;
260 int ret;
261
262 ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL);
263 if (!ipw)
264 return -ENOMEM;
265
266 ipw->link = link;
267 link->priv = ipw;
099dc4fb 268
099dc4fb
DS
269 ipw->hardware = ipwireless_hardware_create();
270 if (!ipw->hardware) {
271 kfree(ipw);
272 return -ENOMEM;
273 }
274 /* RegisterClient will call config_ipwireless */
275
276 ret = config_ipwireless(ipw);
277
278 if (ret != 0) {
099dc4fb
DS
279 ipwireless_detach(link);
280 return ret;
281 }
282
283 return 0;
284}
285
286/*
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
290 * is released.
291 */
292static void ipwireless_detach(struct pcmcia_device *link)
293{
294 struct ipw_dev *ipw = link->priv;
295
296 release_ipwireless(ipw);
297
099dc4fb
DS
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);
304 kfree(ipw);
305}
306
307static struct pcmcia_driver me = {
308 .owner = THIS_MODULE,
309 .probe = ipwireless_attach,
310 .remove = ipwireless_detach,
2e9b981a 311 .name = IPWIRELESS_PCCARD_NAME,
099dc4fb
DS
312 .id_table = ipw_ids
313};
314
315/*
316 * Module insertion : initialisation of the module.
317 * Register the card with cardmgr...
318 */
319static int __init init_ipwireless(void)
320{
321 int ret;
322
099dc4fb
DS
323 ret = ipwireless_tty_init();
324 if (ret != 0)
325 return ret;
326
327 ret = pcmcia_register_driver(&me);
328 if (ret != 0)
329 ipwireless_tty_release();
330
331 return ret;
332}
333
334/*
335 * Module removal
336 */
337static void __exit exit_ipwireless(void)
338{
099dc4fb
DS
339 pcmcia_unregister_driver(&me);
340 ipwireless_tty_release();
341}
342
343module_init(init_ipwireless);
344module_exit(exit_ipwireless);
345
346MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR);
347MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION);
348MODULE_LICENSE("GPL");