Commit | Line | Data |
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099dc4fb DS |
1 | /* |
2 | * IPWireless 3G PCMCIA Network Driver | |
3 | * | |
4 | * Original code | |
5 | * by Stephen Blackheath <stephen@blacksapphire.com>, | |
6 | * Ben Martel <benm@symmetric.co.nz> | |
7 | * | |
8 | * Copyrighted as follows: | |
9 | * Copyright (C) 2004 by Symmetric Systems Ltd (NZ) | |
10 | * | |
11 | * Various driver changes and rewrites, port to new kernels | |
12 | * Copyright (C) 2006-2007 Jiri Kosina | |
13 | * | |
14 | * Misc code cleanups and updates | |
15 | * Copyright (C) 2007 David Sterba | |
16 | */ | |
17 | ||
18 | #include "hardware.h" | |
19 | #include "network.h" | |
20 | #include "main.h" | |
21 | #include "tty.h" | |
22 | ||
23 | #include <linux/delay.h> | |
24 | #include <linux/init.h> | |
25 | #include <linux/io.h> | |
26 | #include <linux/kernel.h> | |
27 | #include <linux/module.h> | |
28 | #include <linux/sched.h> | |
29 | #include <linux/slab.h> | |
30 | ||
099dc4fb DS |
31 | #include <pcmcia/cisreg.h> |
32 | #include <pcmcia/device_id.h> | |
33 | #include <pcmcia/ss.h> | |
34 | #include <pcmcia/ds.h> | |
35 | #include <pcmcia/cs.h> | |
36 | ||
37 | static 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 | }; | |
42 | MODULE_DEVICE_TABLE(pcmcia, ipw_ids); | |
43 | ||
44 | static void ipwireless_detach(struct pcmcia_device *link); | |
45 | ||
46 | /* | |
47 | * Module params | |
48 | */ | |
49 | /* Debug mode: more verbose, print sent/recv bytes */ | |
50 | int ipwireless_debug; | |
51 | int ipwireless_loopback; | |
bee9c7c0 | 52 | int ipwireless_out_queue = 10; |
099dc4fb DS |
53 | |
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]"); | |
bee9c7c0 | 60 | MODULE_PARM_DESC(out_queue, "debug: set size of outgoing PPP queue [10]"); |
099dc4fb DS |
61 | |
62 | /* Executes in process context. */ | |
63 | static 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 | ||
71 | static 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 | ||
af757923 DB |
79 | static int ipwireless_probe(struct pcmcia_device *p_dev, |
80 | cistpl_cftable_entry_t *cfg, | |
81 | cistpl_cftable_entry_t *dflt, | |
82 | unsigned int vcc, | |
83 | void *priv_data) | |
aaa8cfda | 84 | { |
af757923 DB |
85 | struct ipw_dev *ipw = priv_data; |
86 | struct resource *io_resource; | |
87 | memreq_t memreq_attr_memory; | |
88 | memreq_t memreq_common_memory; | |
89 | int ret; | |
90 | ||
90abdc3b DB |
91 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; |
92 | p_dev->resource[0]->start = cfg->io.win[0].base; | |
93 | p_dev->resource[0]->end = cfg->io.win[0].len; | |
aaa8cfda | 94 | |
aaa8cfda DB |
95 | /* 0x40 causes it to generate level mode interrupts. */ |
96 | /* 0x04 enables IREQ pin. */ | |
97 | p_dev->conf.ConfigIndex = cfg->index | 0x44; | |
90abdc3b DB |
98 | p_dev->io_lines = 16; |
99 | ret = pcmcia_request_io(p_dev); | |
af757923 DB |
100 | if (ret) |
101 | return ret; | |
aaa8cfda | 102 | |
9a017a91 DB |
103 | io_resource = request_region(p_dev->resource[0]->start, |
104 | resource_size(p_dev->resource[0]), | |
af757923 | 105 | IPWIRELESS_PCCARD_NAME); |
099dc4fb | 106 | |
af757923 DB |
107 | if (cfg->mem.nwin == 0) |
108 | return 0; | |
099dc4fb | 109 | |
af757923 DB |
110 | ipw->request_common_memory.Attributes = |
111 | WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_CM | WIN_ENABLE; | |
112 | ipw->request_common_memory.Base = cfg->mem.win[0].host_addr; | |
113 | ipw->request_common_memory.Size = cfg->mem.win[0].len; | |
114 | if (ipw->request_common_memory.Size < 0x1000) | |
115 | ipw->request_common_memory.Size = 0x1000; | |
116 | ipw->request_common_memory.AccessSpeed = 0; | |
117 | ||
6838b03f | 118 | ret = pcmcia_request_window(p_dev, &ipw->request_common_memory, |
af757923 | 119 | &ipw->handle_common_memory); |
099dc4fb | 120 | |
cbf624f0 | 121 | if (ret != 0) |
af757923 | 122 | goto exit1; |
099dc4fb | 123 | |
af757923 DB |
124 | memreq_common_memory.CardOffset = cfg->mem.win[0].card_addr; |
125 | memreq_common_memory.Page = 0; | |
09e491e9 | 126 | |
868575d1 | 127 | ret = pcmcia_map_mem_page(p_dev, ipw->handle_common_memory, |
af757923 | 128 | &memreq_common_memory); |
099dc4fb | 129 | |
cbf624f0 | 130 | if (ret != 0) |
af757923 | 131 | goto exit2; |
099dc4fb | 132 | |
af757923 | 133 | ipw->is_v2_card = cfg->mem.win[0].len == 0x100; |
099dc4fb | 134 | |
af757923 DB |
135 | ipw->common_memory = ioremap(ipw->request_common_memory.Base, |
136 | ipw->request_common_memory.Size); | |
137 | request_mem_region(ipw->request_common_memory.Base, | |
138 | ipw->request_common_memory.Size, | |
139 | IPWIRELESS_PCCARD_NAME); | |
140 | ||
141 | ipw->request_attr_memory.Attributes = | |
142 | WIN_DATA_WIDTH_16 | WIN_MEMORY_TYPE_AM | WIN_ENABLE; | |
143 | ipw->request_attr_memory.Base = 0; | |
144 | ipw->request_attr_memory.Size = 0; /* this used to be 0x1000 */ | |
145 | ipw->request_attr_memory.AccessSpeed = 0; | |
099dc4fb | 146 | |
6838b03f | 147 | ret = pcmcia_request_window(p_dev, &ipw->request_attr_memory, |
af757923 | 148 | &ipw->handle_attr_memory); |
099dc4fb | 149 | |
cbf624f0 | 150 | if (ret != 0) |
af757923 | 151 | goto exit2; |
099dc4fb | 152 | |
af757923 DB |
153 | memreq_attr_memory.CardOffset = 0; |
154 | memreq_attr_memory.Page = 0; | |
099dc4fb | 155 | |
868575d1 | 156 | ret = pcmcia_map_mem_page(p_dev, ipw->handle_attr_memory, |
af757923 | 157 | &memreq_attr_memory); |
099dc4fb | 158 | |
cbf624f0 | 159 | if (ret != 0) |
af757923 | 160 | goto exit3; |
099dc4fb | 161 | |
af757923 DB |
162 | ipw->attr_memory = ioremap(ipw->request_attr_memory.Base, |
163 | ipw->request_attr_memory.Size); | |
164 | request_mem_region(ipw->request_attr_memory.Base, | |
165 | ipw->request_attr_memory.Size, IPWIRELESS_PCCARD_NAME); | |
099dc4fb | 166 | |
af757923 | 167 | return 0; |
099dc4fb | 168 | |
af757923 | 169 | exit3: |
f5560da5 | 170 | pcmcia_release_window(p_dev, ipw->handle_attr_memory); |
af757923 DB |
171 | exit2: |
172 | if (ipw->common_memory) { | |
173 | release_mem_region(ipw->request_common_memory.Base, | |
09e491e9 | 174 | ipw->request_common_memory.Size); |
af757923 | 175 | iounmap(ipw->common_memory); |
f5560da5 | 176 | pcmcia_release_window(p_dev, ipw->handle_common_memory); |
af757923 | 177 | } else |
f5560da5 | 178 | pcmcia_release_window(p_dev, ipw->handle_common_memory); |
af757923 DB |
179 | exit1: |
180 | release_resource(io_resource); | |
181 | pcmcia_disable_device(p_dev); | |
182 | return -1; | |
183 | } | |
099dc4fb | 184 | |
af757923 DB |
185 | static int config_ipwireless(struct ipw_dev *ipw) |
186 | { | |
187 | struct pcmcia_device *link = ipw->link; | |
188 | int ret = 0; | |
099dc4fb | 189 | |
af757923 | 190 | ipw->is_v2_card = 0; |
099dc4fb | 191 | |
af757923 | 192 | ret = pcmcia_loop_config(link, ipwireless_probe, ipw); |
cbf624f0 | 193 | if (ret != 0) |
af757923 | 194 | return ret; |
099dc4fb | 195 | |
af757923 DB |
196 | link->conf.Attributes = CONF_ENABLE_IRQ; |
197 | link->conf.IntType = INT_MEMORY_AND_IO; | |
099dc4fb | 198 | |
099dc4fb DS |
199 | INIT_WORK(&ipw->work_reboot, signalled_reboot_work); |
200 | ||
9a017a91 | 201 | ipwireless_init_hardware_v1(ipw->hardware, link->resource[0]->start, |
099dc4fb DS |
202 | ipw->attr_memory, ipw->common_memory, |
203 | ipw->is_v2_card, signalled_reboot_callback, | |
204 | ipw); | |
205 | ||
eb14120f | 206 | ret = pcmcia_request_irq(link, ipwireless_interrupt); |
cbf624f0 | 207 | if (ret != 0) |
af757923 | 208 | goto exit; |
099dc4fb | 209 | |
099dc4fb DS |
210 | printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": Card type %s\n", |
211 | ipw->is_v2_card ? "V2/V3" : "V1"); | |
212 | printk(KERN_INFO IPWIRELESS_PCCARD_NAME | |
9a017a91 | 213 | ": I/O ports %pR, irq %d\n", link->resource[0], |
eb14120f | 214 | (unsigned int) link->irq); |
099dc4fb DS |
215 | if (ipw->attr_memory && ipw->common_memory) |
216 | printk(KERN_INFO IPWIRELESS_PCCARD_NAME | |
622e713e | 217 | ": attr memory 0x%08lx-0x%08lx, common memory 0x%08lx-0x%08lx\n", |
09e491e9 DS |
218 | ipw->request_attr_memory.Base, |
219 | ipw->request_attr_memory.Base | |
220 | + ipw->request_attr_memory.Size - 1, | |
221 | ipw->request_common_memory.Base, | |
222 | ipw->request_common_memory.Base | |
223 | + ipw->request_common_memory.Size - 1); | |
099dc4fb DS |
224 | |
225 | ipw->network = ipwireless_network_create(ipw->hardware); | |
226 | if (!ipw->network) | |
af757923 | 227 | goto exit; |
099dc4fb | 228 | |
b498ada6 | 229 | ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network); |
099dc4fb | 230 | if (!ipw->tty) |
af757923 | 231 | goto exit; |
099dc4fb DS |
232 | |
233 | ipwireless_init_hardware_v2_v3(ipw->hardware); | |
234 | ||
235 | /* | |
236 | * Do the RequestConfiguration last, because it enables interrupts. | |
237 | * Then we don't get any interrupts before we're ready for them. | |
238 | */ | |
239 | ret = pcmcia_request_configuration(link, &link->conf); | |
240 | ||
cbf624f0 | 241 | if (ret != 0) |
af757923 | 242 | goto exit; |
099dc4fb | 243 | |
099dc4fb DS |
244 | return 0; |
245 | ||
af757923 | 246 | exit: |
099dc4fb | 247 | if (ipw->attr_memory) { |
09e491e9 DS |
248 | release_mem_region(ipw->request_attr_memory.Base, |
249 | ipw->request_attr_memory.Size); | |
099dc4fb | 250 | iounmap(ipw->attr_memory); |
f5560da5 | 251 | pcmcia_release_window(link, ipw->handle_attr_memory); |
099dc4fb | 252 | } |
099dc4fb | 253 | if (ipw->common_memory) { |
09e491e9 DS |
254 | release_mem_region(ipw->request_common_memory.Base, |
255 | ipw->request_common_memory.Size); | |
099dc4fb | 256 | iounmap(ipw->common_memory); |
f5560da5 | 257 | pcmcia_release_window(link, ipw->handle_common_memory); |
099dc4fb | 258 | } |
099dc4fb | 259 | pcmcia_disable_device(link); |
099dc4fb DS |
260 | return -1; |
261 | } | |
262 | ||
263 | static void release_ipwireless(struct ipw_dev *ipw) | |
264 | { | |
09e491e9 DS |
265 | if (ipw->common_memory) { |
266 | release_mem_region(ipw->request_common_memory.Base, | |
267 | ipw->request_common_memory.Size); | |
099dc4fb | 268 | iounmap(ipw->common_memory); |
09e491e9 DS |
269 | } |
270 | if (ipw->attr_memory) { | |
271 | release_mem_region(ipw->request_attr_memory.Base, | |
272 | ipw->request_attr_memory.Size); | |
099dc4fb | 273 | iounmap(ipw->attr_memory); |
09e491e9 | 274 | } |
099dc4fb | 275 | if (ipw->common_memory) |
f5560da5 | 276 | pcmcia_release_window(ipw->link, ipw->handle_common_memory); |
099dc4fb | 277 | if (ipw->attr_memory) |
f5560da5 | 278 | pcmcia_release_window(ipw->link, ipw->handle_attr_memory); |
09e491e9 | 279 | |
09e491e9 | 280 | pcmcia_disable_device(ipw->link); |
099dc4fb DS |
281 | } |
282 | ||
283 | /* | |
284 | * ipwireless_attach() creates an "instance" of the driver, allocating | |
285 | * local data structures for one device (one interface). The device | |
286 | * is registered with Card Services. | |
287 | * | |
288 | * The pcmcia_device structure is initialized, but we don't actually | |
289 | * configure the card at this point -- we wait until we receive a | |
290 | * card insertion event. | |
291 | */ | |
292 | static int ipwireless_attach(struct pcmcia_device *link) | |
293 | { | |
294 | struct ipw_dev *ipw; | |
295 | int ret; | |
296 | ||
297 | ipw = kzalloc(sizeof(struct ipw_dev), GFP_KERNEL); | |
298 | if (!ipw) | |
299 | return -ENOMEM; | |
300 | ||
301 | ipw->link = link; | |
302 | link->priv = ipw; | |
099dc4fb | 303 | |
099dc4fb DS |
304 | ipw->hardware = ipwireless_hardware_create(); |
305 | if (!ipw->hardware) { | |
306 | kfree(ipw); | |
307 | return -ENOMEM; | |
308 | } | |
309 | /* RegisterClient will call config_ipwireless */ | |
310 | ||
311 | ret = config_ipwireless(ipw); | |
312 | ||
313 | if (ret != 0) { | |
099dc4fb DS |
314 | ipwireless_detach(link); |
315 | return ret; | |
316 | } | |
317 | ||
318 | return 0; | |
319 | } | |
320 | ||
321 | /* | |
322 | * This deletes a driver "instance". The device is de-registered with | |
323 | * Card Services. If it has been released, all local data structures | |
324 | * are freed. Otherwise, the structures will be freed when the device | |
325 | * is released. | |
326 | */ | |
327 | static void ipwireless_detach(struct pcmcia_device *link) | |
328 | { | |
329 | struct ipw_dev *ipw = link->priv; | |
330 | ||
331 | release_ipwireless(ipw); | |
332 | ||
099dc4fb DS |
333 | if (ipw->tty != NULL) |
334 | ipwireless_tty_free(ipw->tty); | |
335 | if (ipw->network != NULL) | |
336 | ipwireless_network_free(ipw->network); | |
337 | if (ipw->hardware != NULL) | |
338 | ipwireless_hardware_free(ipw->hardware); | |
339 | kfree(ipw); | |
340 | } | |
341 | ||
342 | static struct pcmcia_driver me = { | |
343 | .owner = THIS_MODULE, | |
344 | .probe = ipwireless_attach, | |
345 | .remove = ipwireless_detach, | |
346 | .drv = { .name = IPWIRELESS_PCCARD_NAME }, | |
347 | .id_table = ipw_ids | |
348 | }; | |
349 | ||
350 | /* | |
351 | * Module insertion : initialisation of the module. | |
352 | * Register the card with cardmgr... | |
353 | */ | |
354 | static int __init init_ipwireless(void) | |
355 | { | |
356 | int ret; | |
357 | ||
358 | printk(KERN_INFO IPWIRELESS_PCCARD_NAME " " | |
359 | IPWIRELESS_PCMCIA_VERSION " by " IPWIRELESS_PCMCIA_AUTHOR "\n"); | |
360 | ||
361 | ret = ipwireless_tty_init(); | |
362 | if (ret != 0) | |
363 | return ret; | |
364 | ||
365 | ret = pcmcia_register_driver(&me); | |
366 | if (ret != 0) | |
367 | ipwireless_tty_release(); | |
368 | ||
369 | return ret; | |
370 | } | |
371 | ||
372 | /* | |
373 | * Module removal | |
374 | */ | |
375 | static void __exit exit_ipwireless(void) | |
376 | { | |
377 | printk(KERN_INFO IPWIRELESS_PCCARD_NAME " " | |
378 | IPWIRELESS_PCMCIA_VERSION " removed\n"); | |
379 | ||
380 | pcmcia_unregister_driver(&me); | |
381 | ipwireless_tty_release(); | |
382 | } | |
383 | ||
384 | module_init(init_ipwireless); | |
385 | module_exit(exit_ipwireless); | |
386 | ||
387 | MODULE_AUTHOR(IPWIRELESS_PCMCIA_AUTHOR); | |
388 | MODULE_DESCRIPTION(IPWIRELESS_PCCARD_NAME " " IPWIRELESS_PCMCIA_VERSION); | |
389 | MODULE_LICENSE("GPL"); |