Line data Source code
1 : // SPDX-License-Identifier: GPL-2.0
2 : /*
3 : * Probe for 8250/16550-type ISAPNP serial ports.
4 : *
5 : * Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
6 : *
7 : * Copyright (C) 2001 Russell King, All Rights Reserved.
8 : *
9 : * Ported to the Linux PnP Layer - (C) Adam Belay.
10 : */
11 : #include <linux/module.h>
12 : #include <linux/pci.h>
13 : #include <linux/pm.h>
14 : #include <linux/pnp.h>
15 : #include <linux/string.h>
16 : #include <linux/kernel.h>
17 : #include <linux/property.h>
18 : #include <linux/serial_core.h>
19 : #include <linux/bitops.h>
20 :
21 : #include <asm/byteorder.h>
22 :
23 : #include "8250.h"
24 :
25 : #define UNKNOWN_DEV 0x3000
26 : #define CIR_PORT 0x0800
27 :
28 : static const struct pnp_device_id pnp_dev_table[] = {
29 : /* Archtek America Corp. */
30 : /* Archtek SmartLink Modem 3334BT Plug & Play */
31 : { "AAC000F", 0 },
32 : /* Anchor Datacomm BV */
33 : /* SXPro 144 External Data Fax Modem Plug & Play */
34 : { "ADC0001", 0 },
35 : /* SXPro 288 External Data Fax Modem Plug & Play */
36 : { "ADC0002", 0 },
37 : /* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
38 : { "AEI0250", 0 },
39 : /* Actiontec ISA PNP 56K X2 Fax Modem */
40 : { "AEI1240", 0 },
41 : /* Rockwell 56K ACF II Fax+Data+Voice Modem */
42 : { "AKY1021", 0 /*SPCI_FL_NO_SHIRQ*/ },
43 : /*
44 : * ALi Fast Infrared Controller
45 : * Native driver (ali-ircc) is broken so at least
46 : * it can be used with irtty-sir.
47 : */
48 : { "ALI5123", 0 },
49 : /* AZT3005 PnP SOUND DEVICE */
50 : { "AZT4001", 0 },
51 : /* Best Data Products Inc. Smart One 336F PnP Modem */
52 : { "BDP3336", 0 },
53 : /* Boca Research */
54 : /* Boca Complete Ofc Communicator 14.4 Data-FAX */
55 : { "BRI0A49", 0 },
56 : /* Boca Research 33,600 ACF Modem */
57 : { "BRI1400", 0 },
58 : /* Boca 33.6 Kbps Internal FD34FSVD */
59 : { "BRI3400", 0 },
60 : /* Computer Peripherals Inc */
61 : /* EuroViVa CommCenter-33.6 SP PnP */
62 : { "CPI4050", 0 },
63 : /* Creative Labs */
64 : /* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
65 : { "CTL3001", 0 },
66 : /* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
67 : { "CTL3011", 0 },
68 : /* Davicom ISA 33.6K Modem */
69 : { "DAV0336", 0 },
70 : /* Creative */
71 : /* Creative Modem Blaster Flash56 DI5601-1 */
72 : { "DMB1032", 0 },
73 : /* Creative Modem Blaster V.90 DI5660 */
74 : { "DMB2001", 0 },
75 : /* E-Tech */
76 : /* E-Tech CyberBULLET PC56RVP */
77 : { "ETT0002", 0 },
78 : /* FUJITSU */
79 : /* Fujitsu 33600 PnP-I2 R Plug & Play */
80 : { "FUJ0202", 0 },
81 : /* Fujitsu FMV-FX431 Plug & Play */
82 : { "FUJ0205", 0 },
83 : /* Fujitsu 33600 PnP-I4 R Plug & Play */
84 : { "FUJ0206", 0 },
85 : /* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
86 : { "FUJ0209", 0 },
87 : /* Archtek America Corp. */
88 : /* Archtek SmartLink Modem 3334BT Plug & Play */
89 : { "GVC000F", 0 },
90 : /* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */
91 : { "GVC0303", 0 },
92 : /* Hayes */
93 : /* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
94 : { "HAY0001", 0 },
95 : /* Hayes Optima 336 V.34 + FAX + Voice PnP */
96 : { "HAY000C", 0 },
97 : /* Hayes Optima 336B V.34 + FAX + Voice PnP */
98 : { "HAY000D", 0 },
99 : /* Hayes Accura 56K Ext Fax Modem PnP */
100 : { "HAY5670", 0 },
101 : /* Hayes Accura 56K Ext Fax Modem PnP */
102 : { "HAY5674", 0 },
103 : /* Hayes Accura 56K Fax Modem PnP */
104 : { "HAY5675", 0 },
105 : /* Hayes 288, V.34 + FAX */
106 : { "HAYF000", 0 },
107 : /* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */
108 : { "HAYF001", 0 },
109 : /* IBM */
110 : /* IBM Thinkpad 701 Internal Modem Voice */
111 : { "IBM0033", 0 },
112 : /* Intermec */
113 : /* Intermec CV60 touchscreen port */
114 : { "PNP4972", 0 },
115 : /* Intertex */
116 : /* Intertex 28k8 33k6 Voice EXT PnP */
117 : { "IXDC801", 0 },
118 : /* Intertex 33k6 56k Voice EXT PnP */
119 : { "IXDC901", 0 },
120 : /* Intertex 28k8 33k6 Voice SP EXT PnP */
121 : { "IXDD801", 0 },
122 : /* Intertex 33k6 56k Voice SP EXT PnP */
123 : { "IXDD901", 0 },
124 : /* Intertex 28k8 33k6 Voice SP INT PnP */
125 : { "IXDF401", 0 },
126 : /* Intertex 28k8 33k6 Voice SP EXT PnP */
127 : { "IXDF801", 0 },
128 : /* Intertex 33k6 56k Voice SP EXT PnP */
129 : { "IXDF901", 0 },
130 : /* Kortex International */
131 : /* KORTEX 28800 Externe PnP */
132 : { "KOR4522", 0 },
133 : /* KXPro 33.6 Vocal ASVD PnP */
134 : { "KORF661", 0 },
135 : /* Lasat */
136 : /* LASAT Internet 33600 PnP */
137 : { "LAS4040", 0 },
138 : /* Lasat Safire 560 PnP */
139 : { "LAS4540", 0 },
140 : /* Lasat Safire 336 PnP */
141 : { "LAS5440", 0 },
142 : /* Microcom, Inc. */
143 : /* Microcom TravelPorte FAST V.34 Plug & Play */
144 : { "MNP0281", 0 },
145 : /* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */
146 : { "MNP0336", 0 },
147 : /* Microcom DeskPorte FAST EP 28.8 Plug & Play */
148 : { "MNP0339", 0 },
149 : /* Microcom DeskPorte 28.8P Plug & Play */
150 : { "MNP0342", 0 },
151 : /* Microcom DeskPorte FAST ES 28.8 Plug & Play */
152 : { "MNP0500", 0 },
153 : /* Microcom DeskPorte FAST ES 28.8 Plug & Play */
154 : { "MNP0501", 0 },
155 : /* Microcom DeskPorte 28.8S Internal Plug & Play */
156 : { "MNP0502", 0 },
157 : /* Motorola */
158 : /* Motorola BitSURFR Plug & Play */
159 : { "MOT1105", 0 },
160 : /* Motorola TA210 Plug & Play */
161 : { "MOT1111", 0 },
162 : /* Motorola HMTA 200 (ISDN) Plug & Play */
163 : { "MOT1114", 0 },
164 : /* Motorola BitSURFR Plug & Play */
165 : { "MOT1115", 0 },
166 : /* Motorola Lifestyle 28.8 Internal */
167 : { "MOT1190", 0 },
168 : /* Motorola V.3400 Plug & Play */
169 : { "MOT1501", 0 },
170 : /* Motorola Lifestyle 28.8 V.34 Plug & Play */
171 : { "MOT1502", 0 },
172 : /* Motorola Power 28.8 V.34 Plug & Play */
173 : { "MOT1505", 0 },
174 : /* Motorola ModemSURFR External 28.8 Plug & Play */
175 : { "MOT1509", 0 },
176 : /* Motorola Premier 33.6 Desktop Plug & Play */
177 : { "MOT150A", 0 },
178 : /* Motorola VoiceSURFR 56K External PnP */
179 : { "MOT150F", 0 },
180 : /* Motorola ModemSURFR 56K External PnP */
181 : { "MOT1510", 0 },
182 : /* Motorola ModemSURFR 56K Internal PnP */
183 : { "MOT1550", 0 },
184 : /* Motorola ModemSURFR Internal 28.8 Plug & Play */
185 : { "MOT1560", 0 },
186 : /* Motorola Premier 33.6 Internal Plug & Play */
187 : { "MOT1580", 0 },
188 : /* Motorola OnlineSURFR 28.8 Internal Plug & Play */
189 : { "MOT15B0", 0 },
190 : /* Motorola VoiceSURFR 56K Internal PnP */
191 : { "MOT15F0", 0 },
192 : /* Com 1 */
193 : /* Deskline K56 Phone System PnP */
194 : { "MVX00A1", 0 },
195 : /* PC Rider K56 Phone System PnP */
196 : { "MVX00F2", 0 },
197 : /* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */
198 : { "nEC8241", 0 },
199 : /* Pace 56 Voice Internal Plug & Play Modem */
200 : { "PMC2430", 0 },
201 : /* Generic */
202 : /* Generic standard PC COM port */
203 : { "PNP0500", 0 },
204 : /* Generic 16550A-compatible COM port */
205 : { "PNP0501", 0 },
206 : /* Compaq 14400 Modem */
207 : { "PNPC000", 0 },
208 : /* Compaq 2400/9600 Modem */
209 : { "PNPC001", 0 },
210 : /* Dial-Up Networking Serial Cable between 2 PCs */
211 : { "PNPC031", 0 },
212 : /* Dial-Up Networking Parallel Cable between 2 PCs */
213 : { "PNPC032", 0 },
214 : /* Standard 9600 bps Modem */
215 : { "PNPC100", 0 },
216 : /* Standard 14400 bps Modem */
217 : { "PNPC101", 0 },
218 : /* Standard 28800 bps Modem*/
219 : { "PNPC102", 0 },
220 : /* Standard Modem*/
221 : { "PNPC103", 0 },
222 : /* Standard 9600 bps Modem*/
223 : { "PNPC104", 0 },
224 : /* Standard 14400 bps Modem*/
225 : { "PNPC105", 0 },
226 : /* Standard 28800 bps Modem*/
227 : { "PNPC106", 0 },
228 : /* Standard Modem */
229 : { "PNPC107", 0 },
230 : /* Standard 9600 bps Modem */
231 : { "PNPC108", 0 },
232 : /* Standard 14400 bps Modem */
233 : { "PNPC109", 0 },
234 : /* Standard 28800 bps Modem */
235 : { "PNPC10A", 0 },
236 : /* Standard Modem */
237 : { "PNPC10B", 0 },
238 : /* Standard 9600 bps Modem */
239 : { "PNPC10C", 0 },
240 : /* Standard 14400 bps Modem */
241 : { "PNPC10D", 0 },
242 : /* Standard 28800 bps Modem */
243 : { "PNPC10E", 0 },
244 : /* Standard Modem */
245 : { "PNPC10F", 0 },
246 : /* Standard PCMCIA Card Modem */
247 : { "PNP2000", 0 },
248 : /* Rockwell */
249 : /* Modular Technology */
250 : /* Rockwell 33.6 DPF Internal PnP */
251 : /* Modular Technology 33.6 Internal PnP */
252 : { "ROK0030", 0 },
253 : /* Kortex International */
254 : /* KORTEX 14400 Externe PnP */
255 : { "ROK0100", 0 },
256 : /* Rockwell 28.8 */
257 : { "ROK4120", 0 },
258 : /* Viking Components, Inc */
259 : /* Viking 28.8 INTERNAL Fax+Data+Voice PnP */
260 : { "ROK4920", 0 },
261 : /* Rockwell */
262 : /* British Telecom */
263 : /* Modular Technology */
264 : /* Rockwell 33.6 DPF External PnP */
265 : /* BT Prologue 33.6 External PnP */
266 : /* Modular Technology 33.6 External PnP */
267 : { "RSS00A0", 0 },
268 : /* Viking 56K FAX INT */
269 : { "RSS0262", 0 },
270 : /* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */
271 : { "RSS0250", 0 },
272 : /* SupraExpress 28.8 Data/Fax PnP modem */
273 : { "SUP1310", 0 },
274 : /* SupraExpress 336i PnP Voice Modem */
275 : { "SUP1381", 0 },
276 : /* SupraExpress 33.6 Data/Fax PnP modem */
277 : { "SUP1421", 0 },
278 : /* SupraExpress 33.6 Data/Fax PnP modem */
279 : { "SUP1590", 0 },
280 : /* SupraExpress 336i Sp ASVD */
281 : { "SUP1620", 0 },
282 : /* SupraExpress 33.6 Data/Fax PnP modem */
283 : { "SUP1760", 0 },
284 : /* SupraExpress 56i Sp Intl */
285 : { "SUP2171", 0 },
286 : /* Phoebe Micro */
287 : /* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
288 : { "TEX0011", 0 },
289 : /* Archtek America Corp. */
290 : /* Archtek SmartLink Modem 3334BT Plug & Play */
291 : { "UAC000F", 0 },
292 : /* 3Com Corp. */
293 : /* Gateway Telepath IIvi 33.6 */
294 : { "USR0000", 0 },
295 : /* U.S. Robotics Sporster 33.6K Fax INT PnP */
296 : { "USR0002", 0 },
297 : /* Sportster Vi 14.4 PnP FAX Voicemail */
298 : { "USR0004", 0 },
299 : /* U.S. Robotics 33.6K Voice INT PnP */
300 : { "USR0006", 0 },
301 : /* U.S. Robotics 33.6K Voice EXT PnP */
302 : { "USR0007", 0 },
303 : /* U.S. Robotics Courier V.Everything INT PnP */
304 : { "USR0009", 0 },
305 : /* U.S. Robotics 33.6K Voice INT PnP */
306 : { "USR2002", 0 },
307 : /* U.S. Robotics 56K Voice INT PnP */
308 : { "USR2070", 0 },
309 : /* U.S. Robotics 56K Voice EXT PnP */
310 : { "USR2080", 0 },
311 : /* U.S. Robotics 56K FAX INT */
312 : { "USR3031", 0 },
313 : /* U.S. Robotics 56K FAX INT */
314 : { "USR3050", 0 },
315 : /* U.S. Robotics 56K Voice INT PnP */
316 : { "USR3070", 0 },
317 : /* U.S. Robotics 56K Voice EXT PnP */
318 : { "USR3080", 0 },
319 : /* U.S. Robotics 56K Voice INT PnP */
320 : { "USR3090", 0 },
321 : /* U.S. Robotics 56K Message */
322 : { "USR9100", 0 },
323 : /* U.S. Robotics 56K FAX EXT PnP*/
324 : { "USR9160", 0 },
325 : /* U.S. Robotics 56K FAX INT PnP*/
326 : { "USR9170", 0 },
327 : /* U.S. Robotics 56K Voice EXT PnP*/
328 : { "USR9180", 0 },
329 : /* U.S. Robotics 56K Voice INT PnP*/
330 : { "USR9190", 0 },
331 : /* Wacom tablets */
332 : { "WACFXXX", 0 },
333 : /* Compaq touchscreen */
334 : { "FPI2002", 0 },
335 : /* Fujitsu Stylistic touchscreens */
336 : { "FUJ02B2", 0 },
337 : { "FUJ02B3", 0 },
338 : /* Fujitsu Stylistic LT touchscreens */
339 : { "FUJ02B4", 0 },
340 : /* Passive Fujitsu Stylistic touchscreens */
341 : { "FUJ02B6", 0 },
342 : { "FUJ02B7", 0 },
343 : { "FUJ02B8", 0 },
344 : { "FUJ02B9", 0 },
345 : { "FUJ02BC", 0 },
346 : /* Fujitsu Wacom Tablet PC device */
347 : { "FUJ02E5", 0 },
348 : /* Fujitsu P-series tablet PC device */
349 : { "FUJ02E6", 0 },
350 : /* Fujitsu Wacom 2FGT Tablet PC device */
351 : { "FUJ02E7", 0 },
352 : /* Fujitsu Wacom 1FGT Tablet PC device */
353 : { "FUJ02E9", 0 },
354 : /*
355 : * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6
356 : * in disguise).
357 : */
358 : { "LTS0001", 0 },
359 : /* Rockwell's (PORALiNK) 33600 INT PNP */
360 : { "WCI0003", 0 },
361 : /* Unknown PnP modems */
362 : { "PNPCXXX", UNKNOWN_DEV },
363 : /* More unknown PnP modems */
364 : { "PNPDXXX", UNKNOWN_DEV },
365 : /*
366 : * Winbond CIR port, should not be probed. We should keep track of
367 : * it to prevent the legacy serial driver from probing it.
368 : */
369 : { "WEC1022", CIR_PORT },
370 : /*
371 : * SMSC IrCC SIR/FIR port, should not be probed by serial driver as
372 : * well so its own driver can bind to it.
373 : */
374 : { "SMCF010", CIR_PORT },
375 : { "", 0 }
376 : };
377 :
378 : MODULE_DEVICE_TABLE(pnp, pnp_dev_table);
379 :
380 : static const char *modem_names[] = {
381 : "MODEM", "Modem", "modem", "FAX", "Fax", "fax",
382 : "56K", "56k", "K56", "33.6", "28.8", "14.4",
383 : "33,600", "28,800", "14,400", "33.600", "28.800", "14.400",
384 : "33600", "28800", "14400", "V.90", "V.34", "V.32", NULL
385 : };
386 :
387 0 : static bool check_name(const char *name)
388 : {
389 0 : const char **tmp;
390 :
391 0 : for (tmp = modem_names; *tmp; tmp++)
392 0 : if (strstr(name, *tmp))
393 0 : return true;
394 :
395 0 : return false;
396 0 : }
397 :
398 0 : static bool check_resources(struct pnp_dev *dev)
399 : {
400 : static const resource_size_t base[] = {0x2f8, 0x3f8, 0x2e8, 0x3e8};
401 0 : unsigned int i;
402 :
403 0 : for (i = 0; i < ARRAY_SIZE(base); i++) {
404 0 : if (pnp_possible_config(dev, IORESOURCE_IO, base[i], 8))
405 0 : return true;
406 0 : }
407 :
408 0 : return false;
409 0 : }
410 :
411 : /*
412 : * Given a complete unknown PnP device, try to use some heuristics to
413 : * detect modems. Currently use such heuristic set:
414 : * - dev->name or dev->bus->name must contain "modem" substring;
415 : * - device must have only one IO region (8 byte long) with base address
416 : * 0x2e8, 0x3e8, 0x2f8 or 0x3f8.
417 : *
418 : * Such detection looks very ugly, but can detect at least some of numerous
419 : * PnP modems, alternatively we must hardcode all modems in pnp_devices[]
420 : * table.
421 : */
422 0 : static int serial_pnp_guess_board(struct pnp_dev *dev)
423 : {
424 0 : if (!(check_name(pnp_dev_name(dev)) ||
425 0 : (dev->card && check_name(dev->card->name))))
426 0 : return -ENODEV;
427 :
428 0 : if (check_resources(dev))
429 0 : return 0;
430 :
431 0 : return -ENODEV;
432 0 : }
433 :
434 : static int
435 0 : serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
436 : {
437 0 : struct uart_8250_port uart, *port;
438 0 : int ret, flags = dev_id->driver_data;
439 0 : long line;
440 :
441 0 : if (flags & UNKNOWN_DEV) {
442 0 : ret = serial_pnp_guess_board(dev);
443 0 : if (ret < 0)
444 0 : return ret;
445 0 : }
446 :
447 0 : memset(&uart, 0, sizeof(uart));
448 0 : if ((flags & CIR_PORT) && pnp_port_valid(dev, 2)) {
449 0 : uart.port.iobase = pnp_port_start(dev, 2);
450 0 : } else if (pnp_port_valid(dev, 0)) {
451 0 : uart.port.iobase = pnp_port_start(dev, 0);
452 0 : } else if (pnp_mem_valid(dev, 0)) {
453 0 : uart.port.mapbase = pnp_mem_start(dev, 0);
454 0 : uart.port.mapsize = pnp_mem_len(dev, 0);
455 0 : uart.port.flags = UPF_IOREMAP;
456 0 : } else
457 0 : return -ENODEV;
458 :
459 0 : uart.port.uartclk = 1843200;
460 0 : uart.port.dev = &dev->dev;
461 0 : uart.port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
462 :
463 0 : ret = uart_read_port_properties(&uart.port);
464 : /* no interrupt -> fall back to polling */
465 0 : if (ret == -ENXIO)
466 0 : ret = 0;
467 0 : if (ret)
468 0 : return ret;
469 :
470 0 : if (flags & CIR_PORT) {
471 0 : uart.port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE;
472 0 : uart.port.type = PORT_8250_CIR;
473 0 : }
474 :
475 : dev_dbg(&dev->dev,
476 : "Setup PNP port: port %#lx, mem %#llx, size %#llx, irq %u, type %u\n",
477 : uart.port.iobase, (unsigned long long)uart.port.mapbase,
478 : (unsigned long long)uart.port.mapsize, uart.port.irq, uart.port.iotype);
479 :
480 0 : line = serial8250_register_8250_port(&uart);
481 0 : if (line < 0 || (flags & CIR_PORT))
482 0 : return -ENODEV;
483 :
484 0 : port = serial8250_get_port(line);
485 0 : if (uart_console(&port->port))
486 0 : dev->capabilities |= PNP_CONSOLE;
487 :
488 0 : pnp_set_drvdata(dev, (void *)line);
489 0 : return 0;
490 0 : }
491 :
492 0 : static void serial_pnp_remove(struct pnp_dev *dev)
493 : {
494 0 : long line = (long)pnp_get_drvdata(dev);
495 :
496 0 : dev->capabilities &= ~PNP_CONSOLE;
497 0 : serial8250_unregister_port(line);
498 0 : }
499 :
500 0 : static int serial_pnp_suspend(struct device *dev)
501 : {
502 0 : long line = (long)dev_get_drvdata(dev);
503 :
504 0 : serial8250_suspend_port(line);
505 0 : return 0;
506 0 : }
507 :
508 0 : static int serial_pnp_resume(struct device *dev)
509 : {
510 0 : long line = (long)dev_get_drvdata(dev);
511 :
512 0 : serial8250_resume_port(line);
513 0 : return 0;
514 0 : }
515 :
516 : static DEFINE_SIMPLE_DEV_PM_OPS(serial_pnp_pm_ops, serial_pnp_suspend, serial_pnp_resume);
517 :
518 : static struct pnp_driver serial_pnp_driver = {
519 : .name = "serial",
520 : .probe = serial_pnp_probe,
521 : .remove = serial_pnp_remove,
522 : .driver = {
523 : .pm = pm_sleep_ptr(&serial_pnp_pm_ops),
524 : },
525 : .id_table = pnp_dev_table,
526 : };
527 :
528 0 : int serial8250_pnp_init(void)
529 : {
530 0 : return pnp_register_driver(&serial_pnp_driver);
531 : }
532 :
533 0 : void serial8250_pnp_exit(void)
534 : {
535 0 : pnp_unregister_driver(&serial_pnp_driver);
536 0 : }
537 :
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