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1da177e4 LT |
1 | /*====================================================================== |
2 | ||
3 | A driver for PCMCIA serial devices | |
4 | ||
5 | serial_cs.c 1.134 2002/05/04 05:48:53 | |
6 | ||
7 | The contents of this file are subject to the Mozilla Public | |
8 | License Version 1.1 (the "License"); you may not use this file | |
9 | except in compliance with the License. You may obtain a copy of | |
10 | the License at http://www.mozilla.org/MPL/ | |
11 | ||
12 | Software distributed under the License is distributed on an "AS | |
13 | IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or | |
14 | implied. See the License for the specific language governing | |
15 | rights and limitations under the License. | |
16 | ||
17 | The initial developer of the original code is David A. Hinds | |
18 | <dahinds@users.sourceforge.net>. Portions created by David A. Hinds | |
19 | are Copyright (C) 1999 David A. Hinds. All Rights Reserved. | |
20 | ||
21 | Alternatively, the contents of this file may be used under the | |
22 | terms of the GNU General Public License version 2 (the "GPL"), in which | |
23 | case the provisions of the GPL are applicable instead of the | |
24 | above. If you wish to allow the use of your version of this file | |
25 | only under the terms of the GPL and not to allow others to use | |
26 | your version of this file under the MPL, indicate your decision | |
27 | by deleting the provisions above and replace them with the notice | |
28 | and other provisions required by the GPL. If you do not delete | |
29 | the provisions above, a recipient may use your version of this | |
30 | file under either the MPL or the GPL. | |
31 | ||
32 | ======================================================================*/ | |
33 | ||
34 | #include <linux/module.h> | |
35 | #include <linux/moduleparam.h> | |
36 | #include <linux/kernel.h> | |
37 | #include <linux/init.h> | |
38 | #include <linux/sched.h> | |
39 | #include <linux/ptrace.h> | |
40 | #include <linux/slab.h> | |
41 | #include <linux/string.h> | |
42 | #include <linux/timer.h> | |
43 | #include <linux/serial_core.h> | |
44 | #include <linux/major.h> | |
45 | #include <asm/io.h> | |
46 | #include <asm/system.h> | |
47 | ||
48 | #include <pcmcia/version.h> | |
49 | #include <pcmcia/cs_types.h> | |
50 | #include <pcmcia/cs.h> | |
51 | #include <pcmcia/cistpl.h> | |
52 | #include <pcmcia/ciscode.h> | |
53 | #include <pcmcia/ds.h> | |
54 | #include <pcmcia/cisreg.h> | |
55 | ||
56 | #include "8250.h" | |
57 | ||
58 | #ifdef PCMCIA_DEBUG | |
59 | static int pc_debug = PCMCIA_DEBUG; | |
60 | module_param(pc_debug, int, 0644); | |
61 | #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) | |
62 | static char *version = "serial_cs.c 1.134 2002/05/04 05:48:53 (David Hinds)"; | |
63 | #else | |
64 | #define DEBUG(n, args...) | |
65 | #endif | |
66 | ||
67 | /*====================================================================*/ | |
68 | ||
69 | /* Parameters that can be set with 'insmod' */ | |
70 | ||
71 | /* Enable the speaker? */ | |
72 | static int do_sound = 1; | |
73 | /* Skip strict UART tests? */ | |
74 | static int buggy_uart; | |
75 | ||
76 | module_param(do_sound, int, 0444); | |
77 | module_param(buggy_uart, int, 0444); | |
78 | ||
79 | /*====================================================================*/ | |
80 | ||
81 | /* Table of multi-port card ID's */ | |
82 | ||
83 | struct multi_id { | |
84 | u_short manfid; | |
85 | u_short prodid; | |
86 | int multi; /* 1 = multifunction, > 1 = # ports */ | |
87 | }; | |
88 | ||
89 | static struct multi_id multi_id[] = { | |
90 | { MANFID_OMEGA, PRODID_OMEGA_QSP_100, 4 }, | |
91 | { MANFID_QUATECH, PRODID_QUATECH_DUAL_RS232, 2 }, | |
92 | { MANFID_QUATECH, PRODID_QUATECH_DUAL_RS232_D1, 2 }, | |
93 | { MANFID_QUATECH, PRODID_QUATECH_QUAD_RS232, 4 }, | |
94 | { MANFID_SOCKET, PRODID_SOCKET_DUAL_RS232, 2 }, | |
95 | { MANFID_INTEL, PRODID_INTEL_DUAL_RS232, 2 }, | |
96 | { MANFID_NATINST, PRODID_NATINST_QUAD_RS232, 4 } | |
97 | }; | |
98 | #define MULTI_COUNT (sizeof(multi_id)/sizeof(struct multi_id)) | |
99 | ||
100 | struct serial_info { | |
101 | dev_link_t link; | |
102 | int ndev; | |
103 | int multi; | |
104 | int slave; | |
105 | int manfid; | |
106 | dev_node_t node[4]; | |
107 | int line[4]; | |
108 | }; | |
109 | ||
110 | static void serial_config(dev_link_t * link); | |
111 | static int serial_event(event_t event, int priority, | |
112 | event_callback_args_t * args); | |
113 | ||
114 | static dev_info_t dev_info = "serial_cs"; | |
115 | ||
116 | static dev_link_t *serial_attach(void); | |
117 | static void serial_detach(dev_link_t *); | |
118 | ||
119 | static dev_link_t *dev_list = NULL; | |
120 | ||
121 | /*====================================================================== | |
122 | ||
123 | After a card is removed, serial_remove() will unregister | |
124 | the serial device(s), and release the PCMCIA configuration. | |
125 | ||
126 | ======================================================================*/ | |
127 | ||
128 | static void serial_remove(dev_link_t *link) | |
129 | { | |
130 | struct serial_info *info = link->priv; | |
131 | int i; | |
132 | ||
133 | link->state &= ~DEV_PRESENT; | |
134 | ||
135 | DEBUG(0, "serial_release(0x%p)\n", link); | |
136 | ||
137 | /* | |
138 | * Recheck to see if the device is still configured. | |
139 | */ | |
140 | if (info->link.state & DEV_CONFIG) { | |
141 | for (i = 0; i < info->ndev; i++) | |
142 | serial8250_unregister_port(info->line[i]); | |
143 | ||
144 | info->link.dev = NULL; | |
145 | ||
146 | if (!info->slave) { | |
147 | pcmcia_release_configuration(info->link.handle); | |
148 | pcmcia_release_io(info->link.handle, &info->link.io); | |
149 | pcmcia_release_irq(info->link.handle, &info->link.irq); | |
150 | } | |
151 | ||
152 | info->link.state &= ~DEV_CONFIG; | |
153 | } | |
154 | } | |
155 | ||
156 | static void serial_suspend(dev_link_t *link) | |
157 | { | |
158 | link->state |= DEV_SUSPEND; | |
159 | ||
160 | if (link->state & DEV_CONFIG) { | |
161 | struct serial_info *info = link->priv; | |
162 | int i; | |
163 | ||
164 | for (i = 0; i < info->ndev; i++) | |
165 | serial8250_suspend_port(info->line[i]); | |
166 | ||
167 | if (!info->slave) | |
168 | pcmcia_release_configuration(link->handle); | |
169 | } | |
170 | } | |
171 | ||
172 | static void serial_resume(dev_link_t *link) | |
173 | { | |
174 | link->state &= ~DEV_SUSPEND; | |
175 | ||
176 | if (DEV_OK(link)) { | |
177 | struct serial_info *info = link->priv; | |
178 | int i; | |
179 | ||
180 | if (!info->slave) | |
181 | pcmcia_request_configuration(link->handle, &link->conf); | |
182 | ||
183 | for (i = 0; i < info->ndev; i++) | |
184 | serial8250_resume_port(info->line[i]); | |
185 | } | |
186 | } | |
187 | ||
188 | /*====================================================================== | |
189 | ||
190 | serial_attach() creates an "instance" of the driver, allocating | |
191 | local data structures for one device. The device is registered | |
192 | with Card Services. | |
193 | ||
194 | ======================================================================*/ | |
195 | ||
196 | static dev_link_t *serial_attach(void) | |
197 | { | |
198 | struct serial_info *info; | |
199 | client_reg_t client_reg; | |
200 | dev_link_t *link; | |
201 | int ret; | |
202 | ||
203 | DEBUG(0, "serial_attach()\n"); | |
204 | ||
205 | /* Create new serial device */ | |
206 | info = kmalloc(sizeof (*info), GFP_KERNEL); | |
207 | if (!info) | |
208 | return NULL; | |
209 | memset(info, 0, sizeof (*info)); | |
210 | link = &info->link; | |
211 | link->priv = info; | |
212 | ||
213 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
214 | link->io.NumPorts1 = 8; | |
215 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; | |
216 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; | |
217 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
218 | if (do_sound) { | |
219 | link->conf.Attributes |= CONF_ENABLE_SPKR; | |
220 | link->conf.Status = CCSR_AUDIO_ENA; | |
221 | } | |
222 | link->conf.IntType = INT_MEMORY_AND_IO; | |
223 | ||
224 | /* Register with Card Services */ | |
225 | link->next = dev_list; | |
226 | dev_list = link; | |
227 | client_reg.dev_info = &dev_info; | |
228 | client_reg.EventMask = | |
229 | CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL | | |
230 | CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET | | |
231 | CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME; | |
232 | client_reg.event_handler = &serial_event; | |
233 | client_reg.Version = 0x0210; | |
234 | client_reg.event_callback_args.client_data = link; | |
235 | ret = pcmcia_register_client(&link->handle, &client_reg); | |
236 | if (ret != CS_SUCCESS) { | |
237 | cs_error(link->handle, RegisterClient, ret); | |
238 | serial_detach(link); | |
239 | return NULL; | |
240 | } | |
241 | ||
242 | return link; | |
243 | } | |
244 | ||
245 | /*====================================================================== | |
246 | ||
247 | This deletes a driver "instance". The device is de-registered | |
248 | with Card Services. If it has been released, all local data | |
249 | structures are freed. Otherwise, the structures will be freed | |
250 | when the device is released. | |
251 | ||
252 | ======================================================================*/ | |
253 | ||
254 | static void serial_detach(dev_link_t * link) | |
255 | { | |
256 | struct serial_info *info = link->priv; | |
257 | dev_link_t **linkp; | |
258 | int ret; | |
259 | ||
260 | DEBUG(0, "serial_detach(0x%p)\n", link); | |
261 | ||
262 | /* Locate device structure */ | |
263 | for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) | |
264 | if (*linkp == link) | |
265 | break; | |
266 | if (*linkp == NULL) | |
267 | return; | |
268 | ||
269 | /* | |
270 | * Ensure any outstanding scheduled tasks are completed. | |
271 | */ | |
272 | flush_scheduled_work(); | |
273 | ||
274 | /* | |
275 | * Ensure that the ports have been released. | |
276 | */ | |
277 | serial_remove(link); | |
278 | ||
279 | if (link->handle) { | |
280 | ret = pcmcia_deregister_client(link->handle); | |
281 | if (ret != CS_SUCCESS) | |
282 | cs_error(link->handle, DeregisterClient, ret); | |
283 | } | |
284 | ||
285 | /* Unlink device structure, free bits */ | |
286 | *linkp = link->next; | |
287 | kfree(info); | |
288 | } | |
289 | ||
290 | /*====================================================================*/ | |
291 | ||
292 | static int setup_serial(client_handle_t handle, struct serial_info * info, | |
293 | kio_addr_t iobase, int irq) | |
294 | { | |
295 | struct uart_port port; | |
296 | int line; | |
297 | ||
298 | memset(&port, 0, sizeof (struct uart_port)); | |
299 | port.iobase = iobase; | |
300 | port.irq = irq; | |
301 | port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ; | |
302 | port.uartclk = 1843200; | |
303 | port.dev = &handle_to_dev(handle); | |
304 | if (buggy_uart) | |
305 | port.flags |= UPF_BUGGY_UART; | |
306 | line = serial8250_register_port(&port); | |
307 | if (line < 0) { | |
308 | printk(KERN_NOTICE "serial_cs: serial8250_register_port() at " | |
309 | "0x%04lx, irq %d failed\n", (u_long)iobase, irq); | |
310 | return -EINVAL; | |
311 | } | |
312 | ||
313 | info->line[info->ndev] = line; | |
314 | sprintf(info->node[info->ndev].dev_name, "ttyS%d", line); | |
315 | info->node[info->ndev].major = TTY_MAJOR; | |
316 | info->node[info->ndev].minor = 0x40 + line; | |
317 | if (info->ndev > 0) | |
318 | info->node[info->ndev - 1].next = &info->node[info->ndev]; | |
319 | info->ndev++; | |
320 | ||
321 | return 0; | |
322 | } | |
323 | ||
324 | /*====================================================================*/ | |
325 | ||
326 | static int | |
327 | first_tuple(client_handle_t handle, tuple_t * tuple, cisparse_t * parse) | |
328 | { | |
329 | int i; | |
330 | i = pcmcia_get_first_tuple(handle, tuple); | |
331 | if (i != CS_SUCCESS) | |
332 | return CS_NO_MORE_ITEMS; | |
333 | i = pcmcia_get_tuple_data(handle, tuple); | |
334 | if (i != CS_SUCCESS) | |
335 | return i; | |
336 | return pcmcia_parse_tuple(handle, tuple, parse); | |
337 | } | |
338 | ||
339 | static int | |
340 | next_tuple(client_handle_t handle, tuple_t * tuple, cisparse_t * parse) | |
341 | { | |
342 | int i; | |
343 | i = pcmcia_get_next_tuple(handle, tuple); | |
344 | if (i != CS_SUCCESS) | |
345 | return CS_NO_MORE_ITEMS; | |
346 | i = pcmcia_get_tuple_data(handle, tuple); | |
347 | if (i != CS_SUCCESS) | |
348 | return i; | |
349 | return pcmcia_parse_tuple(handle, tuple, parse); | |
350 | } | |
351 | ||
352 | /*====================================================================*/ | |
353 | ||
354 | static int simple_config(dev_link_t *link) | |
355 | { | |
356 | static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; | |
357 | static int size_table[2] = { 8, 16 }; | |
358 | client_handle_t handle = link->handle; | |
359 | struct serial_info *info = link->priv; | |
360 | tuple_t tuple; | |
361 | u_char buf[256]; | |
362 | cisparse_t parse; | |
363 | cistpl_cftable_entry_t *cf = &parse.cftable_entry; | |
364 | config_info_t config; | |
365 | int i, j, try; | |
366 | int s; | |
367 | ||
368 | /* If the card is already configured, look up the port and irq */ | |
369 | i = pcmcia_get_configuration_info(handle, &config); | |
370 | if ((i == CS_SUCCESS) && (config.Attributes & CONF_VALID_CLIENT)) { | |
371 | kio_addr_t port = 0; | |
372 | if ((config.BasePort2 != 0) && (config.NumPorts2 == 8)) { | |
373 | port = config.BasePort2; | |
374 | info->slave = 1; | |
375 | } else if ((info->manfid == MANFID_OSITECH) && | |
376 | (config.NumPorts1 == 0x40)) { | |
377 | port = config.BasePort1 + 0x28; | |
378 | info->slave = 1; | |
379 | } | |
380 | if (info->slave) | |
381 | return setup_serial(handle, info, port, config.AssignedIRQ); | |
382 | } | |
383 | link->conf.Vcc = config.Vcc; | |
384 | ||
385 | /* First pass: look for a config entry that looks normal. */ | |
386 | tuple.TupleData = (cisdata_t *) buf; | |
387 | tuple.TupleOffset = 0; | |
388 | tuple.TupleDataMax = 255; | |
389 | tuple.Attributes = 0; | |
390 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
391 | /* Two tries: without IO aliases, then with aliases */ | |
392 | for (s = 0; s < 2; s++) { | |
393 | for (try = 0; try < 2; try++) { | |
394 | i = first_tuple(handle, &tuple, &parse); | |
395 | while (i != CS_NO_MORE_ITEMS) { | |
396 | if (i != CS_SUCCESS) | |
397 | goto next_entry; | |
398 | if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM)) | |
399 | link->conf.Vpp1 = link->conf.Vpp2 = | |
400 | cf->vpp1.param[CISTPL_POWER_VNOM] / 10000; | |
401 | if ((cf->io.nwin > 0) && (cf->io.win[0].len == size_table[s]) && | |
402 | (cf->io.win[0].base != 0)) { | |
403 | link->conf.ConfigIndex = cf->index; | |
404 | link->io.BasePort1 = cf->io.win[0].base; | |
405 | link->io.IOAddrLines = (try == 0) ? | |
406 | 16 : cf->io.flags & CISTPL_IO_LINES_MASK; | |
407 | i = pcmcia_request_io(link->handle, &link->io); | |
408 | if (i == CS_SUCCESS) | |
409 | goto found_port; | |
410 | } | |
411 | next_entry: | |
412 | i = next_tuple(handle, &tuple, &parse); | |
413 | } | |
414 | } | |
415 | } | |
416 | /* Second pass: try to find an entry that isn't picky about | |
417 | its base address, then try to grab any standard serial port | |
418 | address, and finally try to get any free port. */ | |
419 | i = first_tuple(handle, &tuple, &parse); | |
420 | while (i != CS_NO_MORE_ITEMS) { | |
421 | if ((i == CS_SUCCESS) && (cf->io.nwin > 0) && | |
422 | ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) { | |
423 | link->conf.ConfigIndex = cf->index; | |
424 | for (j = 0; j < 5; j++) { | |
425 | link->io.BasePort1 = base[j]; | |
426 | link->io.IOAddrLines = base[j] ? 16 : 3; | |
427 | i = pcmcia_request_io(link->handle, &link->io); | |
428 | if (i == CS_SUCCESS) | |
429 | goto found_port; | |
430 | } | |
431 | } | |
432 | i = next_tuple(handle, &tuple, &parse); | |
433 | } | |
434 | ||
435 | found_port: | |
436 | if (i != CS_SUCCESS) { | |
437 | printk(KERN_NOTICE | |
438 | "serial_cs: no usable port range found, giving up\n"); | |
439 | cs_error(link->handle, RequestIO, i); | |
440 | return -1; | |
441 | } | |
442 | ||
443 | i = pcmcia_request_irq(link->handle, &link->irq); | |
444 | if (i != CS_SUCCESS) { | |
445 | cs_error(link->handle, RequestIRQ, i); | |
446 | link->irq.AssignedIRQ = 0; | |
447 | } | |
448 | if (info->multi && (info->manfid == MANFID_3COM)) | |
449 | link->conf.ConfigIndex &= ~(0x08); | |
450 | i = pcmcia_request_configuration(link->handle, &link->conf); | |
451 | if (i != CS_SUCCESS) { | |
452 | cs_error(link->handle, RequestConfiguration, i); | |
453 | return -1; | |
454 | } | |
455 | ||
456 | return setup_serial(handle, info, link->io.BasePort1, link->irq.AssignedIRQ); | |
457 | } | |
458 | ||
459 | static int multi_config(dev_link_t * link) | |
460 | { | |
461 | client_handle_t handle = link->handle; | |
462 | struct serial_info *info = link->priv; | |
463 | tuple_t tuple; | |
464 | u_char buf[256]; | |
465 | cisparse_t parse; | |
466 | cistpl_cftable_entry_t *cf = &parse.cftable_entry; | |
467 | config_info_t config; | |
468 | int i, base2 = 0; | |
469 | ||
470 | i = pcmcia_get_configuration_info(handle, &config); | |
471 | if (i != CS_SUCCESS) { | |
472 | cs_error(handle, GetConfigurationInfo, i); | |
473 | return -1; | |
474 | } | |
475 | link->conf.Vcc = config.Vcc; | |
476 | ||
477 | tuple.TupleData = (cisdata_t *) buf; | |
478 | tuple.TupleOffset = 0; | |
479 | tuple.TupleDataMax = 255; | |
480 | tuple.Attributes = 0; | |
481 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
482 | ||
483 | /* First, look for a generic full-sized window */ | |
484 | link->io.NumPorts1 = info->multi * 8; | |
485 | i = first_tuple(handle, &tuple, &parse); | |
486 | while (i != CS_NO_MORE_ITEMS) { | |
487 | /* The quad port cards have bad CIS's, so just look for a | |
488 | window larger than 8 ports and assume it will be right */ | |
489 | if ((i == CS_SUCCESS) && (cf->io.nwin == 1) && | |
490 | (cf->io.win[0].len > 8)) { | |
491 | link->conf.ConfigIndex = cf->index; | |
492 | link->io.BasePort1 = cf->io.win[0].base; | |
493 | link->io.IOAddrLines = | |
494 | cf->io.flags & CISTPL_IO_LINES_MASK; | |
495 | i = pcmcia_request_io(link->handle, &link->io); | |
496 | base2 = link->io.BasePort1 + 8; | |
497 | if (i == CS_SUCCESS) | |
498 | break; | |
499 | } | |
500 | i = next_tuple(handle, &tuple, &parse); | |
501 | } | |
502 | ||
503 | /* If that didn't work, look for two windows */ | |
504 | if (i != CS_SUCCESS) { | |
505 | link->io.NumPorts1 = link->io.NumPorts2 = 8; | |
506 | info->multi = 2; | |
507 | i = first_tuple(handle, &tuple, &parse); | |
508 | while (i != CS_NO_MORE_ITEMS) { | |
509 | if ((i == CS_SUCCESS) && (cf->io.nwin == 2)) { | |
510 | link->conf.ConfigIndex = cf->index; | |
511 | link->io.BasePort1 = cf->io.win[0].base; | |
512 | link->io.BasePort2 = cf->io.win[1].base; | |
513 | link->io.IOAddrLines = | |
514 | cf->io.flags & CISTPL_IO_LINES_MASK; | |
515 | i = pcmcia_request_io(link->handle, &link->io); | |
516 | base2 = link->io.BasePort2; | |
517 | if (i == CS_SUCCESS) | |
518 | break; | |
519 | } | |
520 | i = next_tuple(handle, &tuple, &parse); | |
521 | } | |
522 | } | |
523 | ||
524 | if (i != CS_SUCCESS) { | |
525 | cs_error(link->handle, RequestIO, i); | |
526 | return -1; | |
527 | } | |
528 | ||
529 | i = pcmcia_request_irq(link->handle, &link->irq); | |
530 | if (i != CS_SUCCESS) { | |
531 | printk(KERN_NOTICE | |
532 | "serial_cs: no usable port range found, giving up\n"); | |
533 | cs_error(link->handle, RequestIRQ, i); | |
534 | link->irq.AssignedIRQ = 0; | |
535 | } | |
536 | /* Socket Dual IO: this enables irq's for second port */ | |
537 | if (info->multi && (info->manfid == MANFID_SOCKET)) { | |
538 | link->conf.Present |= PRESENT_EXT_STATUS; | |
539 | link->conf.ExtStatus = ESR_REQ_ATTN_ENA; | |
540 | } | |
541 | i = pcmcia_request_configuration(link->handle, &link->conf); | |
542 | if (i != CS_SUCCESS) { | |
543 | cs_error(link->handle, RequestConfiguration, i); | |
544 | return -1; | |
545 | } | |
546 | ||
547 | /* The Oxford Semiconductor OXCF950 cards are in fact single-port: | |
548 | 8 registers are for the UART, the others are extra registers */ | |
549 | if (info->manfid == MANFID_OXSEMI) { | |
550 | if (cf->index == 1 || cf->index == 3) { | |
551 | setup_serial(handle, info, base2, link->irq.AssignedIRQ); | |
552 | outb(12, link->io.BasePort1 + 1); | |
553 | } else { | |
554 | setup_serial(handle, info, link->io.BasePort1, link->irq.AssignedIRQ); | |
555 | outb(12, base2 + 1); | |
556 | } | |
557 | return 0; | |
558 | } | |
559 | ||
560 | setup_serial(handle, info, link->io.BasePort1, link->irq.AssignedIRQ); | |
561 | /* The Nokia cards are not really multiport cards */ | |
562 | if (info->manfid == MANFID_NOKIA) | |
563 | return 0; | |
564 | for (i = 0; i < info->multi - 1; i++) | |
565 | setup_serial(handle, info, base2 + (8 * i), link->irq.AssignedIRQ); | |
566 | ||
567 | return 0; | |
568 | } | |
569 | ||
570 | /*====================================================================== | |
571 | ||
572 | serial_config() is scheduled to run after a CARD_INSERTION event | |
573 | is received, to configure the PCMCIA socket, and to make the | |
574 | serial device available to the system. | |
575 | ||
576 | ======================================================================*/ | |
577 | ||
578 | void serial_config(dev_link_t * link) | |
579 | { | |
580 | client_handle_t handle = link->handle; | |
581 | struct serial_info *info = link->priv; | |
582 | tuple_t tuple; | |
583 | u_short buf[128]; | |
584 | cisparse_t parse; | |
585 | cistpl_cftable_entry_t *cf = &parse.cftable_entry; | |
586 | int i, last_ret, last_fn; | |
587 | ||
588 | DEBUG(0, "serial_config(0x%p)\n", link); | |
589 | ||
590 | tuple.TupleData = (cisdata_t *) buf; | |
591 | tuple.TupleOffset = 0; | |
592 | tuple.TupleDataMax = 255; | |
593 | tuple.Attributes = 0; | |
594 | /* Get configuration register information */ | |
595 | tuple.DesiredTuple = CISTPL_CONFIG; | |
596 | last_ret = first_tuple(handle, &tuple, &parse); | |
597 | if (last_ret != CS_SUCCESS) { | |
598 | last_fn = ParseTuple; | |
599 | goto cs_failed; | |
600 | } | |
601 | link->conf.ConfigBase = parse.config.base; | |
602 | link->conf.Present = parse.config.rmask[0]; | |
603 | ||
604 | /* Configure card */ | |
605 | link->state |= DEV_CONFIG; | |
606 | ||
607 | /* Is this a compliant multifunction card? */ | |
608 | tuple.DesiredTuple = CISTPL_LONGLINK_MFC; | |
609 | tuple.Attributes = TUPLE_RETURN_COMMON | TUPLE_RETURN_LINK; | |
610 | info->multi = (first_tuple(handle, &tuple, &parse) == CS_SUCCESS); | |
611 | ||
612 | /* Is this a multiport card? */ | |
613 | tuple.DesiredTuple = CISTPL_MANFID; | |
614 | if (first_tuple(handle, &tuple, &parse) == CS_SUCCESS) { | |
615 | info->manfid = le16_to_cpu(buf[0]); | |
616 | for (i = 0; i < MULTI_COUNT; i++) | |
617 | if ((info->manfid == multi_id[i].manfid) && | |
618 | (le16_to_cpu(buf[1]) == multi_id[i].prodid)) | |
619 | break; | |
620 | if (i < MULTI_COUNT) | |
621 | info->multi = multi_id[i].multi; | |
622 | } | |
623 | ||
624 | /* Another check for dual-serial cards: look for either serial or | |
625 | multifunction cards that ask for appropriate IO port ranges */ | |
626 | tuple.DesiredTuple = CISTPL_FUNCID; | |
627 | if ((info->multi == 0) && | |
628 | ((first_tuple(handle, &tuple, &parse) != CS_SUCCESS) || | |
629 | (parse.funcid.func == CISTPL_FUNCID_MULTI) || | |
630 | (parse.funcid.func == CISTPL_FUNCID_SERIAL))) { | |
631 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
632 | if (first_tuple(handle, &tuple, &parse) == CS_SUCCESS) { | |
633 | if ((cf->io.nwin == 1) && (cf->io.win[0].len % 8 == 0)) | |
634 | info->multi = cf->io.win[0].len >> 3; | |
635 | if ((cf->io.nwin == 2) && (cf->io.win[0].len == 8) && | |
636 | (cf->io.win[1].len == 8)) | |
637 | info->multi = 2; | |
638 | } | |
639 | } | |
640 | ||
641 | if (info->multi > 1) | |
642 | multi_config(link); | |
643 | else | |
644 | simple_config(link); | |
645 | ||
646 | if (info->ndev == 0) | |
647 | goto failed; | |
648 | ||
649 | if (info->manfid == MANFID_IBM) { | |
650 | conf_reg_t reg = { 0, CS_READ, 0x800, 0 }; | |
651 | last_ret = pcmcia_access_configuration_register(link->handle, ®); | |
652 | if (last_ret) { | |
653 | last_fn = AccessConfigurationRegister; | |
654 | goto cs_failed; | |
655 | } | |
656 | reg.Action = CS_WRITE; | |
657 | reg.Value = reg.Value | 1; | |
658 | last_ret = pcmcia_access_configuration_register(link->handle, ®); | |
659 | if (last_ret) { | |
660 | last_fn = AccessConfigurationRegister; | |
661 | goto cs_failed; | |
662 | } | |
663 | } | |
664 | ||
665 | link->dev = &info->node[0]; | |
666 | link->state &= ~DEV_CONFIG_PENDING; | |
667 | return; | |
668 | ||
669 | cs_failed: | |
670 | cs_error(link->handle, last_fn, last_ret); | |
671 | failed: | |
672 | serial_remove(link); | |
673 | link->state &= ~DEV_CONFIG_PENDING; | |
674 | } | |
675 | ||
676 | /*====================================================================== | |
677 | ||
678 | The card status event handler. Mostly, this schedules other | |
679 | stuff to run after an event is received. A CARD_REMOVAL event | |
680 | also sets some flags to discourage the serial drivers from | |
681 | talking to the ports. | |
682 | ||
683 | ======================================================================*/ | |
684 | ||
685 | static int | |
686 | serial_event(event_t event, int priority, event_callback_args_t * args) | |
687 | { | |
688 | dev_link_t *link = args->client_data; | |
689 | struct serial_info *info = link->priv; | |
690 | ||
691 | DEBUG(1, "serial_event(0x%06x)\n", event); | |
692 | ||
693 | switch (event) { | |
694 | case CS_EVENT_CARD_REMOVAL: | |
695 | serial_remove(link); | |
696 | break; | |
697 | ||
698 | case CS_EVENT_CARD_INSERTION: | |
699 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; | |
700 | serial_config(link); | |
701 | break; | |
702 | ||
703 | case CS_EVENT_PM_SUSPEND: | |
704 | serial_suspend(link); | |
705 | break; | |
706 | ||
707 | case CS_EVENT_RESET_PHYSICAL: | |
708 | if ((link->state & DEV_CONFIG) && !info->slave) | |
709 | pcmcia_release_configuration(link->handle); | |
710 | break; | |
711 | ||
712 | case CS_EVENT_PM_RESUME: | |
713 | serial_resume(link); | |
714 | break; | |
715 | ||
716 | case CS_EVENT_CARD_RESET: | |
717 | if (DEV_OK(link) && !info->slave) | |
718 | pcmcia_request_configuration(link->handle, &link->conf); | |
719 | break; | |
720 | } | |
721 | return 0; | |
722 | } | |
723 | ||
724 | static struct pcmcia_driver serial_cs_driver = { | |
725 | .owner = THIS_MODULE, | |
726 | .drv = { | |
727 | .name = "serial_cs", | |
728 | }, | |
729 | .attach = serial_attach, | |
730 | .detach = serial_detach, | |
731 | }; | |
732 | ||
733 | static int __init init_serial_cs(void) | |
734 | { | |
735 | return pcmcia_register_driver(&serial_cs_driver); | |
736 | } | |
737 | ||
738 | static void __exit exit_serial_cs(void) | |
739 | { | |
740 | pcmcia_unregister_driver(&serial_cs_driver); | |
741 | BUG_ON(dev_list != NULL); | |
742 | } | |
743 | ||
744 | module_init(init_serial_cs); | |
745 | module_exit(exit_serial_cs); | |
746 | ||
747 | MODULE_LICENSE("GPL"); |