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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 | ||
16f31113 YR |
110 | struct serial_cfg_mem { |
111 | tuple_t tuple; | |
112 | cisparse_t parse; | |
113 | u_char buf[256]; | |
114 | }; | |
115 | ||
116 | ||
1da177e4 LT |
117 | static void serial_config(dev_link_t * link); |
118 | static int serial_event(event_t event, int priority, | |
119 | event_callback_args_t * args); | |
120 | ||
121 | static dev_info_t dev_info = "serial_cs"; | |
122 | ||
123 | static dev_link_t *serial_attach(void); | |
124 | static void serial_detach(dev_link_t *); | |
125 | ||
126 | static dev_link_t *dev_list = NULL; | |
127 | ||
128 | /*====================================================================== | |
129 | ||
130 | After a card is removed, serial_remove() will unregister | |
131 | the serial device(s), and release the PCMCIA configuration. | |
132 | ||
133 | ======================================================================*/ | |
134 | ||
135 | static void serial_remove(dev_link_t *link) | |
136 | { | |
137 | struct serial_info *info = link->priv; | |
138 | int i; | |
139 | ||
140 | link->state &= ~DEV_PRESENT; | |
141 | ||
142 | DEBUG(0, "serial_release(0x%p)\n", link); | |
143 | ||
144 | /* | |
145 | * Recheck to see if the device is still configured. | |
146 | */ | |
147 | if (info->link.state & DEV_CONFIG) { | |
148 | for (i = 0; i < info->ndev; i++) | |
149 | serial8250_unregister_port(info->line[i]); | |
150 | ||
151 | info->link.dev = NULL; | |
152 | ||
153 | if (!info->slave) { | |
154 | pcmcia_release_configuration(info->link.handle); | |
155 | pcmcia_release_io(info->link.handle, &info->link.io); | |
156 | pcmcia_release_irq(info->link.handle, &info->link.irq); | |
157 | } | |
158 | ||
159 | info->link.state &= ~DEV_CONFIG; | |
160 | } | |
161 | } | |
162 | ||
163 | static void serial_suspend(dev_link_t *link) | |
164 | { | |
165 | link->state |= DEV_SUSPEND; | |
166 | ||
167 | if (link->state & DEV_CONFIG) { | |
168 | struct serial_info *info = link->priv; | |
169 | int i; | |
170 | ||
171 | for (i = 0; i < info->ndev; i++) | |
172 | serial8250_suspend_port(info->line[i]); | |
173 | ||
174 | if (!info->slave) | |
175 | pcmcia_release_configuration(link->handle); | |
176 | } | |
177 | } | |
178 | ||
179 | static void serial_resume(dev_link_t *link) | |
180 | { | |
181 | link->state &= ~DEV_SUSPEND; | |
182 | ||
183 | if (DEV_OK(link)) { | |
184 | struct serial_info *info = link->priv; | |
185 | int i; | |
186 | ||
187 | if (!info->slave) | |
188 | pcmcia_request_configuration(link->handle, &link->conf); | |
189 | ||
190 | for (i = 0; i < info->ndev; i++) | |
191 | serial8250_resume_port(info->line[i]); | |
192 | } | |
193 | } | |
194 | ||
195 | /*====================================================================== | |
196 | ||
197 | serial_attach() creates an "instance" of the driver, allocating | |
198 | local data structures for one device. The device is registered | |
199 | with Card Services. | |
200 | ||
201 | ======================================================================*/ | |
202 | ||
203 | static dev_link_t *serial_attach(void) | |
204 | { | |
205 | struct serial_info *info; | |
206 | client_reg_t client_reg; | |
207 | dev_link_t *link; | |
208 | int ret; | |
209 | ||
210 | DEBUG(0, "serial_attach()\n"); | |
211 | ||
212 | /* Create new serial device */ | |
213 | info = kmalloc(sizeof (*info), GFP_KERNEL); | |
214 | if (!info) | |
215 | return NULL; | |
216 | memset(info, 0, sizeof (*info)); | |
217 | link = &info->link; | |
218 | link->priv = info; | |
219 | ||
220 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
221 | link->io.NumPorts1 = 8; | |
222 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; | |
223 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; | |
224 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
225 | if (do_sound) { | |
226 | link->conf.Attributes |= CONF_ENABLE_SPKR; | |
227 | link->conf.Status = CCSR_AUDIO_ENA; | |
228 | } | |
229 | link->conf.IntType = INT_MEMORY_AND_IO; | |
230 | ||
231 | /* Register with Card Services */ | |
232 | link->next = dev_list; | |
233 | dev_list = link; | |
234 | client_reg.dev_info = &dev_info; | |
235 | client_reg.EventMask = | |
236 | CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL | | |
237 | CS_EVENT_RESET_PHYSICAL | CS_EVENT_CARD_RESET | | |
238 | CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME; | |
239 | client_reg.event_handler = &serial_event; | |
240 | client_reg.Version = 0x0210; | |
241 | client_reg.event_callback_args.client_data = link; | |
242 | ret = pcmcia_register_client(&link->handle, &client_reg); | |
243 | if (ret != CS_SUCCESS) { | |
244 | cs_error(link->handle, RegisterClient, ret); | |
245 | serial_detach(link); | |
246 | return NULL; | |
247 | } | |
248 | ||
249 | return link; | |
250 | } | |
251 | ||
252 | /*====================================================================== | |
253 | ||
254 | This deletes a driver "instance". The device is de-registered | |
255 | with Card Services. If it has been released, all local data | |
256 | structures are freed. Otherwise, the structures will be freed | |
257 | when the device is released. | |
258 | ||
259 | ======================================================================*/ | |
260 | ||
261 | static void serial_detach(dev_link_t * link) | |
262 | { | |
263 | struct serial_info *info = link->priv; | |
264 | dev_link_t **linkp; | |
265 | int ret; | |
266 | ||
267 | DEBUG(0, "serial_detach(0x%p)\n", link); | |
268 | ||
269 | /* Locate device structure */ | |
270 | for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next) | |
271 | if (*linkp == link) | |
272 | break; | |
273 | if (*linkp == NULL) | |
274 | return; | |
275 | ||
276 | /* | |
277 | * Ensure any outstanding scheduled tasks are completed. | |
278 | */ | |
279 | flush_scheduled_work(); | |
280 | ||
281 | /* | |
282 | * Ensure that the ports have been released. | |
283 | */ | |
284 | serial_remove(link); | |
285 | ||
286 | if (link->handle) { | |
287 | ret = pcmcia_deregister_client(link->handle); | |
288 | if (ret != CS_SUCCESS) | |
289 | cs_error(link->handle, DeregisterClient, ret); | |
290 | } | |
291 | ||
292 | /* Unlink device structure, free bits */ | |
293 | *linkp = link->next; | |
294 | kfree(info); | |
295 | } | |
296 | ||
297 | /*====================================================================*/ | |
298 | ||
299 | static int setup_serial(client_handle_t handle, struct serial_info * info, | |
300 | kio_addr_t iobase, int irq) | |
301 | { | |
302 | struct uart_port port; | |
303 | int line; | |
304 | ||
305 | memset(&port, 0, sizeof (struct uart_port)); | |
306 | port.iobase = iobase; | |
307 | port.irq = irq; | |
308 | port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ; | |
309 | port.uartclk = 1843200; | |
310 | port.dev = &handle_to_dev(handle); | |
311 | if (buggy_uart) | |
312 | port.flags |= UPF_BUGGY_UART; | |
313 | line = serial8250_register_port(&port); | |
314 | if (line < 0) { | |
315 | printk(KERN_NOTICE "serial_cs: serial8250_register_port() at " | |
316 | "0x%04lx, irq %d failed\n", (u_long)iobase, irq); | |
317 | return -EINVAL; | |
318 | } | |
319 | ||
320 | info->line[info->ndev] = line; | |
321 | sprintf(info->node[info->ndev].dev_name, "ttyS%d", line); | |
322 | info->node[info->ndev].major = TTY_MAJOR; | |
323 | info->node[info->ndev].minor = 0x40 + line; | |
324 | if (info->ndev > 0) | |
325 | info->node[info->ndev - 1].next = &info->node[info->ndev]; | |
326 | info->ndev++; | |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
331 | /*====================================================================*/ | |
332 | ||
333 | static int | |
334 | first_tuple(client_handle_t handle, tuple_t * tuple, cisparse_t * parse) | |
335 | { | |
336 | int i; | |
337 | i = pcmcia_get_first_tuple(handle, tuple); | |
338 | if (i != CS_SUCCESS) | |
339 | return CS_NO_MORE_ITEMS; | |
340 | i = pcmcia_get_tuple_data(handle, tuple); | |
341 | if (i != CS_SUCCESS) | |
342 | return i; | |
343 | return pcmcia_parse_tuple(handle, tuple, parse); | |
344 | } | |
345 | ||
346 | static int | |
347 | next_tuple(client_handle_t handle, tuple_t * tuple, cisparse_t * parse) | |
348 | { | |
349 | int i; | |
350 | i = pcmcia_get_next_tuple(handle, tuple); | |
351 | if (i != CS_SUCCESS) | |
352 | return CS_NO_MORE_ITEMS; | |
353 | i = pcmcia_get_tuple_data(handle, tuple); | |
354 | if (i != CS_SUCCESS) | |
355 | return i; | |
356 | return pcmcia_parse_tuple(handle, tuple, parse); | |
357 | } | |
358 | ||
359 | /*====================================================================*/ | |
360 | ||
361 | static int simple_config(dev_link_t *link) | |
362 | { | |
363 | static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; | |
364 | static int size_table[2] = { 8, 16 }; | |
365 | client_handle_t handle = link->handle; | |
366 | struct serial_info *info = link->priv; | |
16f31113 YR |
367 | struct serial_cfg_mem *cfg_mem; |
368 | tuple_t *tuple; | |
369 | u_char *buf; | |
370 | cisparse_t *parse; | |
371 | cistpl_cftable_entry_t *cf; | |
1da177e4 LT |
372 | config_info_t config; |
373 | int i, j, try; | |
374 | int s; | |
375 | ||
16f31113 YR |
376 | cfg_mem = kmalloc(sizeof(struct serial_cfg_mem), GFP_KERNEL); |
377 | if (!cfg_mem) | |
378 | return -1; | |
379 | ||
380 | tuple = &cfg_mem->tuple; | |
381 | parse = &cfg_mem->parse; | |
382 | cf = &parse->cftable_entry; | |
383 | buf = cfg_mem->buf; | |
384 | ||
1da177e4 LT |
385 | /* If the card is already configured, look up the port and irq */ |
386 | i = pcmcia_get_configuration_info(handle, &config); | |
387 | if ((i == CS_SUCCESS) && (config.Attributes & CONF_VALID_CLIENT)) { | |
388 | kio_addr_t port = 0; | |
389 | if ((config.BasePort2 != 0) && (config.NumPorts2 == 8)) { | |
390 | port = config.BasePort2; | |
391 | info->slave = 1; | |
392 | } else if ((info->manfid == MANFID_OSITECH) && | |
393 | (config.NumPorts1 == 0x40)) { | |
394 | port = config.BasePort1 + 0x28; | |
395 | info->slave = 1; | |
396 | } | |
16f31113 YR |
397 | if (info->slave) { |
398 | kfree(cfg_mem); | |
1da177e4 | 399 | return setup_serial(handle, info, port, config.AssignedIRQ); |
16f31113 | 400 | } |
1da177e4 LT |
401 | } |
402 | link->conf.Vcc = config.Vcc; | |
403 | ||
404 | /* First pass: look for a config entry that looks normal. */ | |
16f31113 YR |
405 | tuple->TupleData = (cisdata_t *) buf; |
406 | tuple->TupleOffset = 0; | |
407 | tuple->TupleDataMax = 255; | |
408 | tuple->Attributes = 0; | |
409 | tuple->DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
1da177e4 LT |
410 | /* Two tries: without IO aliases, then with aliases */ |
411 | for (s = 0; s < 2; s++) { | |
412 | for (try = 0; try < 2; try++) { | |
16f31113 | 413 | i = first_tuple(handle, tuple, parse); |
1da177e4 LT |
414 | while (i != CS_NO_MORE_ITEMS) { |
415 | if (i != CS_SUCCESS) | |
416 | goto next_entry; | |
417 | if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM)) | |
418 | link->conf.Vpp1 = link->conf.Vpp2 = | |
419 | cf->vpp1.param[CISTPL_POWER_VNOM] / 10000; | |
420 | if ((cf->io.nwin > 0) && (cf->io.win[0].len == size_table[s]) && | |
421 | (cf->io.win[0].base != 0)) { | |
422 | link->conf.ConfigIndex = cf->index; | |
423 | link->io.BasePort1 = cf->io.win[0].base; | |
424 | link->io.IOAddrLines = (try == 0) ? | |
425 | 16 : cf->io.flags & CISTPL_IO_LINES_MASK; | |
426 | i = pcmcia_request_io(link->handle, &link->io); | |
427 | if (i == CS_SUCCESS) | |
428 | goto found_port; | |
429 | } | |
430 | next_entry: | |
16f31113 | 431 | i = next_tuple(handle, tuple, parse); |
1da177e4 LT |
432 | } |
433 | } | |
434 | } | |
435 | /* Second pass: try to find an entry that isn't picky about | |
436 | its base address, then try to grab any standard serial port | |
437 | address, and finally try to get any free port. */ | |
16f31113 | 438 | i = first_tuple(handle, tuple, parse); |
1da177e4 LT |
439 | while (i != CS_NO_MORE_ITEMS) { |
440 | if ((i == CS_SUCCESS) && (cf->io.nwin > 0) && | |
441 | ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) { | |
442 | link->conf.ConfigIndex = cf->index; | |
443 | for (j = 0; j < 5; j++) { | |
444 | link->io.BasePort1 = base[j]; | |
445 | link->io.IOAddrLines = base[j] ? 16 : 3; | |
446 | i = pcmcia_request_io(link->handle, &link->io); | |
447 | if (i == CS_SUCCESS) | |
448 | goto found_port; | |
449 | } | |
450 | } | |
16f31113 | 451 | i = next_tuple(handle, tuple, parse); |
1da177e4 LT |
452 | } |
453 | ||
454 | found_port: | |
455 | if (i != CS_SUCCESS) { | |
456 | printk(KERN_NOTICE | |
457 | "serial_cs: no usable port range found, giving up\n"); | |
458 | cs_error(link->handle, RequestIO, i); | |
16f31113 | 459 | kfree(cfg_mem); |
1da177e4 LT |
460 | return -1; |
461 | } | |
462 | ||
463 | i = pcmcia_request_irq(link->handle, &link->irq); | |
464 | if (i != CS_SUCCESS) { | |
465 | cs_error(link->handle, RequestIRQ, i); | |
466 | link->irq.AssignedIRQ = 0; | |
467 | } | |
468 | if (info->multi && (info->manfid == MANFID_3COM)) | |
469 | link->conf.ConfigIndex &= ~(0x08); | |
470 | i = pcmcia_request_configuration(link->handle, &link->conf); | |
471 | if (i != CS_SUCCESS) { | |
472 | cs_error(link->handle, RequestConfiguration, i); | |
16f31113 | 473 | kfree(cfg_mem); |
1da177e4 LT |
474 | return -1; |
475 | } | |
16f31113 | 476 | kfree(cfg_mem); |
1da177e4 LT |
477 | return setup_serial(handle, info, link->io.BasePort1, link->irq.AssignedIRQ); |
478 | } | |
479 | ||
480 | static int multi_config(dev_link_t * link) | |
481 | { | |
482 | client_handle_t handle = link->handle; | |
483 | struct serial_info *info = link->priv; | |
16f31113 YR |
484 | struct serial_cfg_mem *cfg_mem; |
485 | tuple_t *tuple; | |
486 | u_char *buf; | |
487 | cisparse_t *parse; | |
488 | cistpl_cftable_entry_t *cf; | |
1da177e4 | 489 | config_info_t config; |
16f31113 YR |
490 | int i, rc, base2 = 0; |
491 | ||
492 | cfg_mem = kmalloc(sizeof(struct serial_cfg_mem), GFP_KERNEL); | |
493 | if (!cfg_mem) | |
494 | return -1; | |
495 | tuple = &cfg_mem->tuple; | |
496 | parse = &cfg_mem->parse; | |
497 | cf = &parse->cftable_entry; | |
498 | buf = cfg_mem->buf; | |
1da177e4 LT |
499 | |
500 | i = pcmcia_get_configuration_info(handle, &config); | |
501 | if (i != CS_SUCCESS) { | |
502 | cs_error(handle, GetConfigurationInfo, i); | |
16f31113 YR |
503 | rc = -1; |
504 | goto free_cfg_mem; | |
1da177e4 LT |
505 | } |
506 | link->conf.Vcc = config.Vcc; | |
507 | ||
16f31113 YR |
508 | tuple->TupleData = (cisdata_t *) buf; |
509 | tuple->TupleOffset = 0; | |
510 | tuple->TupleDataMax = 255; | |
511 | tuple->Attributes = 0; | |
512 | tuple->DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
1da177e4 LT |
513 | |
514 | /* First, look for a generic full-sized window */ | |
515 | link->io.NumPorts1 = info->multi * 8; | |
16f31113 | 516 | i = first_tuple(handle, tuple, parse); |
1da177e4 LT |
517 | while (i != CS_NO_MORE_ITEMS) { |
518 | /* The quad port cards have bad CIS's, so just look for a | |
519 | window larger than 8 ports and assume it will be right */ | |
520 | if ((i == CS_SUCCESS) && (cf->io.nwin == 1) && | |
521 | (cf->io.win[0].len > 8)) { | |
522 | link->conf.ConfigIndex = cf->index; | |
523 | link->io.BasePort1 = cf->io.win[0].base; | |
524 | link->io.IOAddrLines = | |
525 | cf->io.flags & CISTPL_IO_LINES_MASK; | |
526 | i = pcmcia_request_io(link->handle, &link->io); | |
527 | base2 = link->io.BasePort1 + 8; | |
528 | if (i == CS_SUCCESS) | |
529 | break; | |
530 | } | |
16f31113 | 531 | i = next_tuple(handle, tuple, parse); |
1da177e4 LT |
532 | } |
533 | ||
534 | /* If that didn't work, look for two windows */ | |
535 | if (i != CS_SUCCESS) { | |
536 | link->io.NumPorts1 = link->io.NumPorts2 = 8; | |
537 | info->multi = 2; | |
16f31113 | 538 | i = first_tuple(handle, tuple, parse); |
1da177e4 LT |
539 | while (i != CS_NO_MORE_ITEMS) { |
540 | if ((i == CS_SUCCESS) && (cf->io.nwin == 2)) { | |
541 | link->conf.ConfigIndex = cf->index; | |
542 | link->io.BasePort1 = cf->io.win[0].base; | |
543 | link->io.BasePort2 = cf->io.win[1].base; | |
544 | link->io.IOAddrLines = | |
545 | cf->io.flags & CISTPL_IO_LINES_MASK; | |
546 | i = pcmcia_request_io(link->handle, &link->io); | |
547 | base2 = link->io.BasePort2; | |
548 | if (i == CS_SUCCESS) | |
549 | break; | |
550 | } | |
16f31113 | 551 | i = next_tuple(handle, tuple, parse); |
1da177e4 LT |
552 | } |
553 | } | |
554 | ||
555 | if (i != CS_SUCCESS) { | |
556 | cs_error(link->handle, RequestIO, i); | |
16f31113 YR |
557 | rc = -1; |
558 | goto free_cfg_mem; | |
1da177e4 LT |
559 | } |
560 | ||
561 | i = pcmcia_request_irq(link->handle, &link->irq); | |
562 | if (i != CS_SUCCESS) { | |
563 | printk(KERN_NOTICE | |
564 | "serial_cs: no usable port range found, giving up\n"); | |
565 | cs_error(link->handle, RequestIRQ, i); | |
566 | link->irq.AssignedIRQ = 0; | |
567 | } | |
568 | /* Socket Dual IO: this enables irq's for second port */ | |
569 | if (info->multi && (info->manfid == MANFID_SOCKET)) { | |
570 | link->conf.Present |= PRESENT_EXT_STATUS; | |
571 | link->conf.ExtStatus = ESR_REQ_ATTN_ENA; | |
572 | } | |
573 | i = pcmcia_request_configuration(link->handle, &link->conf); | |
574 | if (i != CS_SUCCESS) { | |
575 | cs_error(link->handle, RequestConfiguration, i); | |
16f31113 YR |
576 | rc = -1; |
577 | goto free_cfg_mem; | |
1da177e4 LT |
578 | } |
579 | ||
580 | /* The Oxford Semiconductor OXCF950 cards are in fact single-port: | |
581 | 8 registers are for the UART, the others are extra registers */ | |
582 | if (info->manfid == MANFID_OXSEMI) { | |
583 | if (cf->index == 1 || cf->index == 3) { | |
584 | setup_serial(handle, info, base2, link->irq.AssignedIRQ); | |
585 | outb(12, link->io.BasePort1 + 1); | |
586 | } else { | |
587 | setup_serial(handle, info, link->io.BasePort1, link->irq.AssignedIRQ); | |
588 | outb(12, base2 + 1); | |
589 | } | |
16f31113 YR |
590 | rc = 0; |
591 | goto free_cfg_mem; | |
1da177e4 LT |
592 | } |
593 | ||
594 | setup_serial(handle, info, link->io.BasePort1, link->irq.AssignedIRQ); | |
595 | /* The Nokia cards are not really multiport cards */ | |
16f31113 YR |
596 | if (info->manfid == MANFID_NOKIA) { |
597 | rc = 0; | |
598 | goto free_cfg_mem; | |
599 | } | |
1da177e4 | 600 | for (i = 0; i < info->multi - 1; i++) |
16f31113 YR |
601 | setup_serial(handle, info, base2 + (8 * i), |
602 | link->irq.AssignedIRQ); | |
603 | rc = 0; | |
604 | free_cfg_mem: | |
605 | kfree(cfg_mem); | |
606 | return rc; | |
1da177e4 LT |
607 | } |
608 | ||
609 | /*====================================================================== | |
610 | ||
611 | serial_config() is scheduled to run after a CARD_INSERTION event | |
612 | is received, to configure the PCMCIA socket, and to make the | |
613 | serial device available to the system. | |
614 | ||
615 | ======================================================================*/ | |
616 | ||
617 | void serial_config(dev_link_t * link) | |
618 | { | |
619 | client_handle_t handle = link->handle; | |
620 | struct serial_info *info = link->priv; | |
16f31113 YR |
621 | struct serial_cfg_mem *cfg_mem; |
622 | tuple_t *tuple; | |
623 | u_char *buf; | |
624 | cisparse_t *parse; | |
625 | cistpl_cftable_entry_t *cf; | |
1da177e4 LT |
626 | int i, last_ret, last_fn; |
627 | ||
628 | DEBUG(0, "serial_config(0x%p)\n", link); | |
629 | ||
16f31113 YR |
630 | cfg_mem = kmalloc(sizeof(struct serial_cfg_mem), GFP_KERNEL); |
631 | if (!cfg_mem) | |
632 | goto failed; | |
633 | ||
634 | tuple = &cfg_mem->tuple; | |
635 | parse = &cfg_mem->parse; | |
636 | cf = &parse->cftable_entry; | |
637 | buf = cfg_mem->buf; | |
638 | ||
639 | tuple->TupleData = (cisdata_t *) buf; | |
640 | tuple->TupleOffset = 0; | |
641 | tuple->TupleDataMax = 255; | |
642 | tuple->Attributes = 0; | |
1da177e4 | 643 | /* Get configuration register information */ |
16f31113 YR |
644 | tuple->DesiredTuple = CISTPL_CONFIG; |
645 | last_ret = first_tuple(handle, tuple, parse); | |
1da177e4 LT |
646 | if (last_ret != CS_SUCCESS) { |
647 | last_fn = ParseTuple; | |
648 | goto cs_failed; | |
649 | } | |
16f31113 YR |
650 | link->conf.ConfigBase = parse->config.base; |
651 | link->conf.Present = parse->config.rmask[0]; | |
1da177e4 LT |
652 | |
653 | /* Configure card */ | |
654 | link->state |= DEV_CONFIG; | |
655 | ||
656 | /* Is this a compliant multifunction card? */ | |
16f31113 YR |
657 | tuple->DesiredTuple = CISTPL_LONGLINK_MFC; |
658 | tuple->Attributes = TUPLE_RETURN_COMMON | TUPLE_RETURN_LINK; | |
659 | info->multi = (first_tuple(handle, tuple, parse) == CS_SUCCESS); | |
1da177e4 LT |
660 | |
661 | /* Is this a multiport card? */ | |
16f31113 YR |
662 | tuple->DesiredTuple = CISTPL_MANFID; |
663 | if (first_tuple(handle, tuple, parse) == CS_SUCCESS) { | |
f1fc3990 | 664 | info->manfid = parse->manfid.manf; |
1da177e4 LT |
665 | for (i = 0; i < MULTI_COUNT; i++) |
666 | if ((info->manfid == multi_id[i].manfid) && | |
f1fc3990 | 667 | (parse->manfid.card == multi_id[i].prodid)) |
1da177e4 LT |
668 | break; |
669 | if (i < MULTI_COUNT) | |
670 | info->multi = multi_id[i].multi; | |
671 | } | |
672 | ||
673 | /* Another check for dual-serial cards: look for either serial or | |
674 | multifunction cards that ask for appropriate IO port ranges */ | |
16f31113 | 675 | tuple->DesiredTuple = CISTPL_FUNCID; |
1da177e4 | 676 | if ((info->multi == 0) && |
16f31113 YR |
677 | ((first_tuple(handle, tuple, parse) != CS_SUCCESS) || |
678 | (parse->funcid.func == CISTPL_FUNCID_MULTI) || | |
679 | (parse->funcid.func == CISTPL_FUNCID_SERIAL))) { | |
680 | tuple->DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
681 | if (first_tuple(handle, tuple, parse) == CS_SUCCESS) { | |
1da177e4 LT |
682 | if ((cf->io.nwin == 1) && (cf->io.win[0].len % 8 == 0)) |
683 | info->multi = cf->io.win[0].len >> 3; | |
684 | if ((cf->io.nwin == 2) && (cf->io.win[0].len == 8) && | |
685 | (cf->io.win[1].len == 8)) | |
686 | info->multi = 2; | |
687 | } | |
688 | } | |
689 | ||
690 | if (info->multi > 1) | |
691 | multi_config(link); | |
692 | else | |
693 | simple_config(link); | |
694 | ||
695 | if (info->ndev == 0) | |
696 | goto failed; | |
697 | ||
698 | if (info->manfid == MANFID_IBM) { | |
699 | conf_reg_t reg = { 0, CS_READ, 0x800, 0 }; | |
700 | last_ret = pcmcia_access_configuration_register(link->handle, ®); | |
701 | if (last_ret) { | |
702 | last_fn = AccessConfigurationRegister; | |
703 | goto cs_failed; | |
704 | } | |
705 | reg.Action = CS_WRITE; | |
706 | reg.Value = reg.Value | 1; | |
707 | last_ret = pcmcia_access_configuration_register(link->handle, ®); | |
708 | if (last_ret) { | |
709 | last_fn = AccessConfigurationRegister; | |
710 | goto cs_failed; | |
711 | } | |
712 | } | |
713 | ||
714 | link->dev = &info->node[0]; | |
715 | link->state &= ~DEV_CONFIG_PENDING; | |
16f31113 | 716 | kfree(cfg_mem); |
1da177e4 LT |
717 | return; |
718 | ||
719 | cs_failed: | |
720 | cs_error(link->handle, last_fn, last_ret); | |
721 | failed: | |
722 | serial_remove(link); | |
723 | link->state &= ~DEV_CONFIG_PENDING; | |
16f31113 | 724 | kfree(cfg_mem); |
1da177e4 LT |
725 | } |
726 | ||
727 | /*====================================================================== | |
728 | ||
729 | The card status event handler. Mostly, this schedules other | |
730 | stuff to run after an event is received. A CARD_REMOVAL event | |
731 | also sets some flags to discourage the serial drivers from | |
732 | talking to the ports. | |
733 | ||
734 | ======================================================================*/ | |
735 | ||
736 | static int | |
737 | serial_event(event_t event, int priority, event_callback_args_t * args) | |
738 | { | |
739 | dev_link_t *link = args->client_data; | |
740 | struct serial_info *info = link->priv; | |
741 | ||
742 | DEBUG(1, "serial_event(0x%06x)\n", event); | |
743 | ||
744 | switch (event) { | |
745 | case CS_EVENT_CARD_REMOVAL: | |
746 | serial_remove(link); | |
747 | break; | |
748 | ||
749 | case CS_EVENT_CARD_INSERTION: | |
750 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; | |
751 | serial_config(link); | |
752 | break; | |
753 | ||
754 | case CS_EVENT_PM_SUSPEND: | |
755 | serial_suspend(link); | |
756 | break; | |
757 | ||
758 | case CS_EVENT_RESET_PHYSICAL: | |
759 | if ((link->state & DEV_CONFIG) && !info->slave) | |
760 | pcmcia_release_configuration(link->handle); | |
761 | break; | |
762 | ||
763 | case CS_EVENT_PM_RESUME: | |
764 | serial_resume(link); | |
765 | break; | |
766 | ||
767 | case CS_EVENT_CARD_RESET: | |
768 | if (DEV_OK(link) && !info->slave) | |
769 | pcmcia_request_configuration(link->handle, &link->conf); | |
770 | break; | |
771 | } | |
772 | return 0; | |
773 | } | |
774 | ||
775 | static struct pcmcia_driver serial_cs_driver = { | |
776 | .owner = THIS_MODULE, | |
777 | .drv = { | |
778 | .name = "serial_cs", | |
779 | }, | |
780 | .attach = serial_attach, | |
781 | .detach = serial_detach, | |
782 | }; | |
783 | ||
784 | static int __init init_serial_cs(void) | |
785 | { | |
786 | return pcmcia_register_driver(&serial_cs_driver); | |
787 | } | |
788 | ||
789 | static void __exit exit_serial_cs(void) | |
790 | { | |
791 | pcmcia_unregister_driver(&serial_cs_driver); | |
792 | BUG_ON(dev_list != NULL); | |
793 | } | |
794 | ||
795 | module_init(init_serial_cs); | |
796 | module_exit(exit_serial_cs); | |
797 | ||
798 | MODULE_LICENSE("GPL"); |