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1// SPDX-License-Identifier: GPL-2.0
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
32#include <pcmcia/cisreg.h>
33#include <pcmcia/device_id.h>
34#include <pcmcia/ss.h>
35#include <pcmcia/ds.h>
36
37static const struct pcmcia_device_id ipw_ids[] = {
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;
52int ipwireless_out_queue = 10;
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]");
60MODULE_PARM_DESC(out_queue, "debug: set size of outgoing PPP queue [10]");
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;
68 pcmcia_reset_card(link->socket);
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
79static int ipwireless_probe(struct pcmcia_device *p_dev, void *priv_data)
80{
81 struct ipw_dev *ipw = priv_data;
82 int ret;
83
84 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
85 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
86
87 /* 0x40 causes it to generate level mode interrupts. */
88 /* 0x04 enables IREQ pin. */
89 p_dev->config_index |= 0x44;
90 p_dev->io_lines = 16;
91 ret = pcmcia_request_io(p_dev);
92 if (ret)
93 return ret;
94
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 }
101
102 p_dev->resource[2]->flags |=
103 WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
104
105 ret = pcmcia_request_window(p_dev, p_dev->resource[2], 0);
106 if (ret != 0)
107 goto exit1;
108
109 ret = pcmcia_map_mem_page(p_dev, p_dev->resource[2], p_dev->card_addr);
110 if (ret != 0)
111 goto exit1;
112
113 ipw->is_v2_card = resource_size(p_dev->resource[2]) == 0x100;
114
115 ipw->common_memory = ioremap(p_dev->resource[2]->start,
116 resource_size(p_dev->resource[2]));
117 if (!ipw->common_memory) {
118 ret = -ENOMEM;
119 goto exit1;
120 }
121 if (!request_mem_region(p_dev->resource[2]->start,
122 resource_size(p_dev->resource[2]),
123 IPWIRELESS_PCCARD_NAME)) {
124 ret = -EBUSY;
125 goto exit2;
126 }
127
128 p_dev->resource[3]->flags |= WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM |
129 WIN_ENABLE;
130 p_dev->resource[3]->end = 0; /* this used to be 0x1000 */
131 ret = pcmcia_request_window(p_dev, p_dev->resource[3], 0);
132 if (ret != 0)
133 goto exit3;
134
135 ret = pcmcia_map_mem_page(p_dev, p_dev->resource[3], 0);
136 if (ret != 0)
137 goto exit3;
138
139 ipw->attr_memory = ioremap(p_dev->resource[3]->start,
140 resource_size(p_dev->resource[3]));
141 if (!ipw->attr_memory) {
142 ret = -ENOMEM;
143 goto exit3;
144 }
145 if (!request_mem_region(p_dev->resource[3]->start,
146 resource_size(p_dev->resource[3]),
147 IPWIRELESS_PCCARD_NAME)) {
148 ret = -EBUSY;
149 goto exit4;
150 }
151
152 return 0;
153
154exit4:
155 iounmap(ipw->attr_memory);
156exit3:
157 release_mem_region(p_dev->resource[2]->start,
158 resource_size(p_dev->resource[2]));
159exit2:
160 iounmap(ipw->common_memory);
161exit1:
162 release_region(p_dev->resource[0]->start,
163 resource_size(p_dev->resource[0]));
164exit:
165 pcmcia_disable_device(p_dev);
166 return ret;
167}
168
169static int config_ipwireless(struct ipw_dev *ipw)
170{
171 struct pcmcia_device *link = ipw->link;
172 int ret = 0;
173
174 ipw->is_v2_card = 0;
175 link->config_flags |= CONF_AUTO_SET_IO | CONF_AUTO_SET_IOMEM |
176 CONF_ENABLE_IRQ;
177
178 ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
179 if (ret != 0)
180 return ret;
181
182 INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
183
184 ipwireless_init_hardware_v1(ipw->hardware, link->resource[0]->start,
185 ipw->attr_memory, ipw->common_memory,
186 ipw->is_v2_card, signalled_reboot_callback,
187 ipw);
188
189 ret = pcmcia_request_irq(link, ipwireless_interrupt);
190 if (ret != 0)
191 goto exit;
192
193 printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
194 ipw->is_v2_card ? "V2/V3" : "V1");
195 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
196 ": I/O ports %pR, irq %d\n", link->resource[0],
197 (unsigned int) link->irq);
198 if (ipw->attr_memory && ipw->common_memory)
199 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
200 ": attr memory %pR, common memory %pR\n",
201 link->resource[3],
202 link->resource[2]);
203
204 ipw->network = ipwireless_network_create(ipw->hardware);
205 if (!ipw->network)
206 goto exit;
207
208 ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network);
209 if (!ipw->tty)
210 goto exit;
211
212 ipwireless_init_hardware_v2_v3(ipw->hardware);
213
214 /*
215 * Do the RequestConfiguration last, because it enables interrupts.
216 * Then we don't get any interrupts before we're ready for them.
217 */
218 ret = pcmcia_enable_device(link);
219 if (ret != 0)
220 goto exit;
221
222 return 0;
223
224exit:
225 if (ipw->common_memory) {
226 release_mem_region(link->resource[2]->start,
227 resource_size(link->resource[2]));
228 iounmap(ipw->common_memory);
229 }
230 if (ipw->attr_memory) {
231 release_mem_region(link->resource[3]->start,
232 resource_size(link->resource[3]));
233 iounmap(ipw->attr_memory);
234 }
235 pcmcia_disable_device(link);
236 return -1;
237}
238
239static void release_ipwireless(struct ipw_dev *ipw)
240{
241 release_region(ipw->link->resource[0]->start,
242 resource_size(ipw->link->resource[0]));
243 if (ipw->common_memory) {
244 release_mem_region(ipw->link->resource[2]->start,
245 resource_size(ipw->link->resource[2]));
246 iounmap(ipw->common_memory);
247 }
248 if (ipw->attr_memory) {
249 release_mem_region(ipw->link->resource[3]->start,
250 resource_size(ipw->link->resource[3]));
251 iounmap(ipw->attr_memory);
252 }
253 pcmcia_disable_device(ipw->link);
254}
255
256/*
257 * ipwireless_attach() creates an "instance" of the driver, allocating
258 * local data structures for one device (one interface). The device
259 * is registered with Card Services.
260 *
261 * The pcmcia_device structure is initialized, but we don't actually
262 * configure the card at this point -- we wait until we receive a
263 * card insertion event.
264 */
265static int ipwireless_attach(struct pcmcia_device *link)
266{
267 struct ipw_dev *ipw;
268 int ret;
269
270 ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL);
271 if (!ipw)
272 return -ENOMEM;
273
274 ipw->link = link;
275 link->priv = ipw;
276
277 ipw->hardware = ipwireless_hardware_create();
278 if (!ipw->hardware) {
279 kfree(ipw);
280 return -ENOMEM;
281 }
282 /* RegisterClient will call config_ipwireless */
283
284 ret = config_ipwireless(ipw);
285
286 if (ret != 0) {
287 ipwireless_detach(link);
288 return ret;
289 }
290
291 return 0;
292}
293
294/*
295 * This deletes a driver "instance". The device is de-registered with
296 * Card Services. If it has been released, all local data structures
297 * are freed. Otherwise, the structures will be freed when the device
298 * is released.
299 */
300static void ipwireless_detach(struct pcmcia_device *link)
301{
302 struct ipw_dev *ipw = link->priv;
303
304 release_ipwireless(ipw);
305
306 if (ipw->tty != NULL)
307 ipwireless_tty_free(ipw->tty);
308 if (ipw->network != NULL)
309 ipwireless_network_free(ipw->network);
310 if (ipw->hardware != NULL)
311 ipwireless_hardware_free(ipw->hardware);
312 kfree(ipw);
313}
314
315static struct pcmcia_driver me = {
316 .owner = THIS_MODULE,
317 .probe = ipwireless_attach,
318 .remove = ipwireless_detach,
319 .name = IPWIRELESS_PCCARD_NAME,
320 .id_table = ipw_ids
321};
322
323/*
324 * Module insertion : initialisation of the module.
325 * Register the card with cardmgr...
326 */
327static int __init init_ipwireless(void)
328{
329 int ret;
330
331 ret = ipwireless_tty_init();
332 if (ret != 0)
333 return ret;
334
335 ret = pcmcia_register_driver(&me);
336 if (ret != 0)
337 ipwireless_tty_release();
338
339 return ret;
340}
341
342/*
343 * Module removal
344 */
345static void __exit exit_ipwireless(void)
346{
347 pcmcia_unregister_driver(&me);
348 ipwireless_tty_release();
349}
350
351module_init(init_ipwireless);
352module_exit(exit_ipwireless);
353
354MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR);
355MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION);
356MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0
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
32#include <pcmcia/cisreg.h>
33#include <pcmcia/device_id.h>
34#include <pcmcia/ss.h>
35#include <pcmcia/ds.h>
36
37static const struct pcmcia_device_id ipw_ids[] = {
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;
52int ipwireless_out_queue = 10;
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]");
60MODULE_PARM_DESC(out_queue, "debug: set size of outgoing PPP queue [10]");
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;
68 pcmcia_reset_card(link->socket);
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
79static int ipwireless_probe(struct pcmcia_device *p_dev, void *priv_data)
80{
81 struct ipw_dev *ipw = priv_data;
82 int ret;
83
84 p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
85 p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
86
87 /* 0x40 causes it to generate level mode interrupts. */
88 /* 0x04 enables IREQ pin. */
89 p_dev->config_index |= 0x44;
90 p_dev->io_lines = 16;
91 ret = pcmcia_request_io(p_dev);
92 if (ret)
93 return ret;
94
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 }
101
102 p_dev->resource[2]->flags |=
103 WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE;
104
105 ret = pcmcia_request_window(p_dev, p_dev->resource[2], 0);
106 if (ret != 0)
107 goto exit1;
108
109 ret = pcmcia_map_mem_page(p_dev, p_dev->resource[2], p_dev->card_addr);
110 if (ret != 0)
111 goto exit1;
112
113 ipw->is_v2_card = resource_size(p_dev->resource[2]) == 0x100;
114
115 ipw->common_memory = ioremap(p_dev->resource[2]->start,
116 resource_size(p_dev->resource[2]));
117 if (!ipw->common_memory) {
118 ret = -ENOMEM;
119 goto exit1;
120 }
121 if (!request_mem_region(p_dev->resource[2]->start,
122 resource_size(p_dev->resource[2]),
123 IPWIRELESS_PCCARD_NAME)) {
124 ret = -EBUSY;
125 goto exit2;
126 }
127
128 p_dev->resource[3]->flags |= WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM |
129 WIN_ENABLE;
130 p_dev->resource[3]->end = 0; /* this used to be 0x1000 */
131 ret = pcmcia_request_window(p_dev, p_dev->resource[3], 0);
132 if (ret != 0)
133 goto exit3;
134
135 ret = pcmcia_map_mem_page(p_dev, p_dev->resource[3], 0);
136 if (ret != 0)
137 goto exit3;
138
139 ipw->attr_memory = ioremap(p_dev->resource[3]->start,
140 resource_size(p_dev->resource[3]));
141 if (!ipw->attr_memory) {
142 ret = -ENOMEM;
143 goto exit3;
144 }
145 if (!request_mem_region(p_dev->resource[3]->start,
146 resource_size(p_dev->resource[3]),
147 IPWIRELESS_PCCARD_NAME)) {
148 ret = -EBUSY;
149 goto exit4;
150 }
151
152 return 0;
153
154exit4:
155 iounmap(ipw->attr_memory);
156exit3:
157 release_mem_region(p_dev->resource[2]->start,
158 resource_size(p_dev->resource[2]));
159exit2:
160 iounmap(ipw->common_memory);
161exit1:
162 release_region(p_dev->resource[0]->start,
163 resource_size(p_dev->resource[0]));
164exit:
165 pcmcia_disable_device(p_dev);
166 return ret;
167}
168
169static int config_ipwireless(struct ipw_dev *ipw)
170{
171 struct pcmcia_device *link = ipw->link;
172 int ret = 0;
173
174 ipw->is_v2_card = 0;
175 link->config_flags |= CONF_AUTO_SET_IO | CONF_AUTO_SET_IOMEM |
176 CONF_ENABLE_IRQ;
177
178 ret = pcmcia_loop_config(link, ipwireless_probe, ipw);
179 if (ret != 0)
180 return ret;
181
182 INIT_WORK(&ipw->work_reboot, signalled_reboot_work);
183
184 ipwireless_init_hardware_v1(ipw->hardware, link->resource[0]->start,
185 ipw->attr_memory, ipw->common_memory,
186 ipw->is_v2_card, signalled_reboot_callback,
187 ipw);
188
189 ret = pcmcia_request_irq(link, ipwireless_interrupt);
190 if (ret != 0)
191 goto exit;
192
193 printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n",
194 ipw->is_v2_card ? "V2/V3" : "V1");
195 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
196 ": I/O ports %pR, irq %d\n", link->resource[0],
197 (unsigned int) link->irq);
198 if (ipw->attr_memory && ipw->common_memory)
199 printk(KERN_INFO IPWIRELESS_PCCARD_NAME
200 ": attr memory %pR, common memory %pR\n",
201 link->resource[3],
202 link->resource[2]);
203
204 ipw->network = ipwireless_network_create(ipw->hardware);
205 if (!ipw->network)
206 goto exit;
207
208 ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network);
209 if (!ipw->tty)
210 goto exit;
211
212 ipwireless_init_hardware_v2_v3(ipw->hardware);
213
214 /*
215 * Do the RequestConfiguration last, because it enables interrupts.
216 * Then we don't get any interrupts before we're ready for them.
217 */
218 ret = pcmcia_enable_device(link);
219 if (ret != 0)
220 goto exit;
221
222 return 0;
223
224exit:
225 if (ipw->common_memory) {
226 release_mem_region(link->resource[2]->start,
227 resource_size(link->resource[2]));
228 iounmap(ipw->common_memory);
229 }
230 if (ipw->attr_memory) {
231 release_mem_region(link->resource[3]->start,
232 resource_size(link->resource[3]));
233 iounmap(ipw->attr_memory);
234 }
235 pcmcia_disable_device(link);
236 return -1;
237}
238
239static void release_ipwireless(struct ipw_dev *ipw)
240{
241 release_region(ipw->link->resource[0]->start,
242 resource_size(ipw->link->resource[0]));
243 if (ipw->common_memory) {
244 release_mem_region(ipw->link->resource[2]->start,
245 resource_size(ipw->link->resource[2]));
246 iounmap(ipw->common_memory);
247 }
248 if (ipw->attr_memory) {
249 release_mem_region(ipw->link->resource[3]->start,
250 resource_size(ipw->link->resource[3]));
251 iounmap(ipw->attr_memory);
252 }
253 pcmcia_disable_device(ipw->link);
254}
255
256/*
257 * ipwireless_attach() creates an "instance" of the driver, allocating
258 * local data structures for one device (one interface). The device
259 * is registered with Card Services.
260 *
261 * The pcmcia_device structure is initialized, but we don't actually
262 * configure the card at this point -- we wait until we receive a
263 * card insertion event.
264 */
265static int ipwireless_attach(struct pcmcia_device *link)
266{
267 struct ipw_dev *ipw;
268 int ret;
269
270 ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL);
271 if (!ipw)
272 return -ENOMEM;
273
274 ipw->link = link;
275 link->priv = ipw;
276
277 ipw->hardware = ipwireless_hardware_create();
278 if (!ipw->hardware) {
279 kfree(ipw);
280 return -ENOMEM;
281 }
282 /* RegisterClient will call config_ipwireless */
283
284 ret = config_ipwireless(ipw);
285
286 if (ret != 0) {
287 ipwireless_detach(link);
288 return ret;
289 }
290
291 return 0;
292}
293
294/*
295 * This deletes a driver "instance". The device is de-registered with
296 * Card Services. If it has been released, all local data structures
297 * are freed. Otherwise, the structures will be freed when the device
298 * is released.
299 */
300static void ipwireless_detach(struct pcmcia_device *link)
301{
302 struct ipw_dev *ipw = link->priv;
303
304 release_ipwireless(ipw);
305
306 if (ipw->tty != NULL)
307 ipwireless_tty_free(ipw->tty);
308 if (ipw->network != NULL)
309 ipwireless_network_free(ipw->network);
310 if (ipw->hardware != NULL)
311 ipwireless_hardware_free(ipw->hardware);
312 kfree(ipw);
313}
314
315static struct pcmcia_driver me = {
316 .owner = THIS_MODULE,
317 .probe = ipwireless_attach,
318 .remove = ipwireless_detach,
319 .name = IPWIRELESS_PCCARD_NAME,
320 .id_table = ipw_ids
321};
322
323/*
324 * Module insertion : initialisation of the module.
325 * Register the card with cardmgr...
326 */
327static int __init init_ipwireless(void)
328{
329 int ret;
330
331 ret = ipwireless_tty_init();
332 if (ret != 0)
333 return ret;
334
335 ret = pcmcia_register_driver(&me);
336 if (ret != 0)
337 ipwireless_tty_release();
338
339 return ret;
340}
341
342/*
343 * Module removal
344 */
345static void __exit exit_ipwireless(void)
346{
347 pcmcia_unregister_driver(&me);
348 ipwireless_tty_release();
349}
350
351module_init(init_ipwireless);
352module_exit(exit_ipwireless);
353
354MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR);
355MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION);
356MODULE_LICENSE("GPL");