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/pnp.h> |
14 | #include <linux/string.h> |
15 | #include <linux/kernel.h> |
16 | #include <linux/property.h> |
17 | #include <linux/serial_core.h> |
18 | #include <linux/bitops.h> |
19 | |
20 | #include <asm/byteorder.h> |
21 | |
22 | #include "8250.h" |
23 | |
24 | #define UNKNOWN_DEV 0x3000 |
25 | #define CIR_PORT 0x0800 |
26 | |
27 | static const struct pnp_device_id pnp_dev_table[] = { |
28 | /* Archtek America Corp. */ |
29 | /* Archtek SmartLink Modem 3334BT Plug & Play */ |
30 | { "AAC000F" , 0 }, |
31 | /* Anchor Datacomm BV */ |
32 | /* SXPro 144 External Data Fax Modem Plug & Play */ |
33 | { "ADC0001" , 0 }, |
34 | /* SXPro 288 External Data Fax Modem Plug & Play */ |
35 | { "ADC0002" , 0 }, |
36 | /* PROLiNK 1456VH ISA PnP K56flex Fax Modem */ |
37 | { "AEI0250" , 0 }, |
38 | /* Actiontec ISA PNP 56K X2 Fax Modem */ |
39 | { "AEI1240" , 0 }, |
40 | /* Rockwell 56K ACF II Fax+Data+Voice Modem */ |
41 | { "AKY1021" , 0 /*SPCI_FL_NO_SHIRQ*/ }, |
42 | /* |
43 | * ALi Fast Infrared Controller |
44 | * Native driver (ali-ircc) is broken so at least |
45 | * it can be used with irtty-sir. |
46 | */ |
47 | { "ALI5123" , 0 }, |
48 | /* AZT3005 PnP SOUND DEVICE */ |
49 | { "AZT4001" , 0 }, |
50 | /* Best Data Products Inc. Smart One 336F PnP Modem */ |
51 | { "BDP3336" , 0 }, |
52 | /* Boca Research */ |
53 | /* Boca Complete Ofc Communicator 14.4 Data-FAX */ |
54 | { "BRI0A49" , 0 }, |
55 | /* Boca Research 33,600 ACF Modem */ |
56 | { "BRI1400" , 0 }, |
57 | /* Boca 33.6 Kbps Internal FD34FSVD */ |
58 | { "BRI3400" , 0 }, |
59 | /* Computer Peripherals Inc */ |
60 | /* EuroViVa CommCenter-33.6 SP PnP */ |
61 | { "CPI4050" , 0 }, |
62 | /* Creative Labs */ |
63 | /* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */ |
64 | { "CTL3001" , 0 }, |
65 | /* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */ |
66 | { "CTL3011" , 0 }, |
67 | /* Davicom ISA 33.6K Modem */ |
68 | { "DAV0336" , 0 }, |
69 | /* Creative */ |
70 | /* Creative Modem Blaster Flash56 DI5601-1 */ |
71 | { "DMB1032" , 0 }, |
72 | /* Creative Modem Blaster V.90 DI5660 */ |
73 | { "DMB2001" , 0 }, |
74 | /* E-Tech */ |
75 | /* E-Tech CyberBULLET PC56RVP */ |
76 | { "ETT0002" , 0 }, |
77 | /* FUJITSU */ |
78 | /* Fujitsu 33600 PnP-I2 R Plug & Play */ |
79 | { "FUJ0202" , 0 }, |
80 | /* Fujitsu FMV-FX431 Plug & Play */ |
81 | { "FUJ0205" , 0 }, |
82 | /* Fujitsu 33600 PnP-I4 R Plug & Play */ |
83 | { "FUJ0206" , 0 }, |
84 | /* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */ |
85 | { "FUJ0209" , 0 }, |
86 | /* Archtek America Corp. */ |
87 | /* Archtek SmartLink Modem 3334BT Plug & Play */ |
88 | { "GVC000F" , 0 }, |
89 | /* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */ |
90 | { "GVC0303" , 0 }, |
91 | /* Hayes */ |
92 | /* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */ |
93 | { "HAY0001" , 0 }, |
94 | /* Hayes Optima 336 V.34 + FAX + Voice PnP */ |
95 | { "HAY000C" , 0 }, |
96 | /* Hayes Optima 336B V.34 + FAX + Voice PnP */ |
97 | { "HAY000D" , 0 }, |
98 | /* Hayes Accura 56K Ext Fax Modem PnP */ |
99 | { "HAY5670" , 0 }, |
100 | /* Hayes Accura 56K Ext Fax Modem PnP */ |
101 | { "HAY5674" , 0 }, |
102 | /* Hayes Accura 56K Fax Modem PnP */ |
103 | { "HAY5675" , 0 }, |
104 | /* Hayes 288, V.34 + FAX */ |
105 | { "HAYF000" , 0 }, |
106 | /* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */ |
107 | { "HAYF001" , 0 }, |
108 | /* IBM */ |
109 | /* IBM Thinkpad 701 Internal Modem Voice */ |
110 | { "IBM0033" , 0 }, |
111 | /* Intermec */ |
112 | /* Intermec CV60 touchscreen port */ |
113 | { "PNP4972" , 0 }, |
114 | /* Intertex */ |
115 | /* Intertex 28k8 33k6 Voice EXT PnP */ |
116 | { "IXDC801" , 0 }, |
117 | /* Intertex 33k6 56k Voice EXT PnP */ |
118 | { "IXDC901" , 0 }, |
119 | /* Intertex 28k8 33k6 Voice SP EXT PnP */ |
120 | { "IXDD801" , 0 }, |
121 | /* Intertex 33k6 56k Voice SP EXT PnP */ |
122 | { "IXDD901" , 0 }, |
123 | /* Intertex 28k8 33k6 Voice SP INT PnP */ |
124 | { "IXDF401" , 0 }, |
125 | /* Intertex 28k8 33k6 Voice SP EXT PnP */ |
126 | { "IXDF801" , 0 }, |
127 | /* Intertex 33k6 56k Voice SP EXT PnP */ |
128 | { "IXDF901" , 0 }, |
129 | /* Kortex International */ |
130 | /* KORTEX 28800 Externe PnP */ |
131 | { "KOR4522" , 0 }, |
132 | /* KXPro 33.6 Vocal ASVD PnP */ |
133 | { "KORF661" , 0 }, |
134 | /* Lasat */ |
135 | /* LASAT Internet 33600 PnP */ |
136 | { "LAS4040" , 0 }, |
137 | /* Lasat Safire 560 PnP */ |
138 | { "LAS4540" , 0 }, |
139 | /* Lasat Safire 336 PnP */ |
140 | { "LAS5440" , 0 }, |
141 | /* Microcom, Inc. */ |
142 | /* Microcom TravelPorte FAST V.34 Plug & Play */ |
143 | { "MNP0281" , 0 }, |
144 | /* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */ |
145 | { "MNP0336" , 0 }, |
146 | /* Microcom DeskPorte FAST EP 28.8 Plug & Play */ |
147 | { "MNP0339" , 0 }, |
148 | /* Microcom DeskPorte 28.8P Plug & Play */ |
149 | { "MNP0342" , 0 }, |
150 | /* Microcom DeskPorte FAST ES 28.8 Plug & Play */ |
151 | { "MNP0500" , 0 }, |
152 | /* Microcom DeskPorte FAST ES 28.8 Plug & Play */ |
153 | { "MNP0501" , 0 }, |
154 | /* Microcom DeskPorte 28.8S Internal Plug & Play */ |
155 | { "MNP0502" , 0 }, |
156 | /* Motorola */ |
157 | /* Motorola BitSURFR Plug & Play */ |
158 | { "MOT1105" , 0 }, |
159 | /* Motorola TA210 Plug & Play */ |
160 | { "MOT1111" , 0 }, |
161 | /* Motorola HMTA 200 (ISDN) Plug & Play */ |
162 | { "MOT1114" , 0 }, |
163 | /* Motorola BitSURFR Plug & Play */ |
164 | { "MOT1115" , 0 }, |
165 | /* Motorola Lifestyle 28.8 Internal */ |
166 | { "MOT1190" , 0 }, |
167 | /* Motorola V.3400 Plug & Play */ |
168 | { "MOT1501" , 0 }, |
169 | /* Motorola Lifestyle 28.8 V.34 Plug & Play */ |
170 | { "MOT1502" , 0 }, |
171 | /* Motorola Power 28.8 V.34 Plug & Play */ |
172 | { "MOT1505" , 0 }, |
173 | /* Motorola ModemSURFR External 28.8 Plug & Play */ |
174 | { "MOT1509" , 0 }, |
175 | /* Motorola Premier 33.6 Desktop Plug & Play */ |
176 | { "MOT150A" , 0 }, |
177 | /* Motorola VoiceSURFR 56K External PnP */ |
178 | { "MOT150F" , 0 }, |
179 | /* Motorola ModemSURFR 56K External PnP */ |
180 | { "MOT1510" , 0 }, |
181 | /* Motorola ModemSURFR 56K Internal PnP */ |
182 | { "MOT1550" , 0 }, |
183 | /* Motorola ModemSURFR Internal 28.8 Plug & Play */ |
184 | { "MOT1560" , 0 }, |
185 | /* Motorola Premier 33.6 Internal Plug & Play */ |
186 | { "MOT1580" , 0 }, |
187 | /* Motorola OnlineSURFR 28.8 Internal Plug & Play */ |
188 | { "MOT15B0" , 0 }, |
189 | /* Motorola VoiceSURFR 56K Internal PnP */ |
190 | { "MOT15F0" , 0 }, |
191 | /* Com 1 */ |
192 | /* Deskline K56 Phone System PnP */ |
193 | { "MVX00A1" , 0 }, |
194 | /* PC Rider K56 Phone System PnP */ |
195 | { "MVX00F2" , 0 }, |
196 | /* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */ |
197 | { "nEC8241" , 0 }, |
198 | /* Pace 56 Voice Internal Plug & Play Modem */ |
199 | { "PMC2430" , 0 }, |
200 | /* Generic */ |
201 | /* Generic standard PC COM port */ |
202 | { "PNP0500" , 0 }, |
203 | /* Generic 16550A-compatible COM port */ |
204 | { "PNP0501" , 0 }, |
205 | /* Compaq 14400 Modem */ |
206 | { "PNPC000" , 0 }, |
207 | /* Compaq 2400/9600 Modem */ |
208 | { "PNPC001" , 0 }, |
209 | /* Dial-Up Networking Serial Cable between 2 PCs */ |
210 | { "PNPC031" , 0 }, |
211 | /* Dial-Up Networking Parallel Cable between 2 PCs */ |
212 | { "PNPC032" , 0 }, |
213 | /* Standard 9600 bps Modem */ |
214 | { "PNPC100" , 0 }, |
215 | /* Standard 14400 bps Modem */ |
216 | { "PNPC101" , 0 }, |
217 | /* Standard 28800 bps Modem*/ |
218 | { "PNPC102" , 0 }, |
219 | /* Standard Modem*/ |
220 | { "PNPC103" , 0 }, |
221 | /* Standard 9600 bps Modem*/ |
222 | { "PNPC104" , 0 }, |
223 | /* Standard 14400 bps Modem*/ |
224 | { "PNPC105" , 0 }, |
225 | /* Standard 28800 bps Modem*/ |
226 | { "PNPC106" , 0 }, |
227 | /* Standard Modem */ |
228 | { "PNPC107" , 0 }, |
229 | /* Standard 9600 bps Modem */ |
230 | { "PNPC108" , 0 }, |
231 | /* Standard 14400 bps Modem */ |
232 | { "PNPC109" , 0 }, |
233 | /* Standard 28800 bps Modem */ |
234 | { "PNPC10A" , 0 }, |
235 | /* Standard Modem */ |
236 | { "PNPC10B" , 0 }, |
237 | /* Standard 9600 bps Modem */ |
238 | { "PNPC10C" , 0 }, |
239 | /* Standard 14400 bps Modem */ |
240 | { "PNPC10D" , 0 }, |
241 | /* Standard 28800 bps Modem */ |
242 | { "PNPC10E" , 0 }, |
243 | /* Standard Modem */ |
244 | { "PNPC10F" , 0 }, |
245 | /* Standard PCMCIA Card Modem */ |
246 | { "PNP2000" , 0 }, |
247 | /* Rockwell */ |
248 | /* Modular Technology */ |
249 | /* Rockwell 33.6 DPF Internal PnP */ |
250 | /* Modular Technology 33.6 Internal PnP */ |
251 | { "ROK0030" , 0 }, |
252 | /* Kortex International */ |
253 | /* KORTEX 14400 Externe PnP */ |
254 | { "ROK0100" , 0 }, |
255 | /* Rockwell 28.8 */ |
256 | { "ROK4120" , 0 }, |
257 | /* Viking Components, Inc */ |
258 | /* Viking 28.8 INTERNAL Fax+Data+Voice PnP */ |
259 | { "ROK4920" , 0 }, |
260 | /* Rockwell */ |
261 | /* British Telecom */ |
262 | /* Modular Technology */ |
263 | /* Rockwell 33.6 DPF External PnP */ |
264 | /* BT Prologue 33.6 External PnP */ |
265 | /* Modular Technology 33.6 External PnP */ |
266 | { "RSS00A0" , 0 }, |
267 | /* Viking 56K FAX INT */ |
268 | { "RSS0262" , 0 }, |
269 | /* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */ |
270 | { "RSS0250" , 0 }, |
271 | /* SupraExpress 28.8 Data/Fax PnP modem */ |
272 | { "SUP1310" , 0 }, |
273 | /* SupraExpress 336i PnP Voice Modem */ |
274 | { "SUP1381" , 0 }, |
275 | /* SupraExpress 33.6 Data/Fax PnP modem */ |
276 | { "SUP1421" , 0 }, |
277 | /* SupraExpress 33.6 Data/Fax PnP modem */ |
278 | { "SUP1590" , 0 }, |
279 | /* SupraExpress 336i Sp ASVD */ |
280 | { "SUP1620" , 0 }, |
281 | /* SupraExpress 33.6 Data/Fax PnP modem */ |
282 | { "SUP1760" , 0 }, |
283 | /* SupraExpress 56i Sp Intl */ |
284 | { "SUP2171" , 0 }, |
285 | /* Phoebe Micro */ |
286 | /* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */ |
287 | { "TEX0011" , 0 }, |
288 | /* Archtek America Corp. */ |
289 | /* Archtek SmartLink Modem 3334BT Plug & Play */ |
290 | { "UAC000F" , 0 }, |
291 | /* 3Com Corp. */ |
292 | /* Gateway Telepath IIvi 33.6 */ |
293 | { "USR0000" , 0 }, |
294 | /* U.S. Robotics Sporster 33.6K Fax INT PnP */ |
295 | { "USR0002" , 0 }, |
296 | /* Sportster Vi 14.4 PnP FAX Voicemail */ |
297 | { "USR0004" , 0 }, |
298 | /* U.S. Robotics 33.6K Voice INT PnP */ |
299 | { "USR0006" , 0 }, |
300 | /* U.S. Robotics 33.6K Voice EXT PnP */ |
301 | { "USR0007" , 0 }, |
302 | /* U.S. Robotics Courier V.Everything INT PnP */ |
303 | { "USR0009" , 0 }, |
304 | /* U.S. Robotics 33.6K Voice INT PnP */ |
305 | { "USR2002" , 0 }, |
306 | /* U.S. Robotics 56K Voice INT PnP */ |
307 | { "USR2070" , 0 }, |
308 | /* U.S. Robotics 56K Voice EXT PnP */ |
309 | { "USR2080" , 0 }, |
310 | /* U.S. Robotics 56K FAX INT */ |
311 | { "USR3031" , 0 }, |
312 | /* U.S. Robotics 56K FAX INT */ |
313 | { "USR3050" , 0 }, |
314 | /* U.S. Robotics 56K Voice INT PnP */ |
315 | { "USR3070" , 0 }, |
316 | /* U.S. Robotics 56K Voice EXT PnP */ |
317 | { "USR3080" , 0 }, |
318 | /* U.S. Robotics 56K Voice INT PnP */ |
319 | { "USR3090" , 0 }, |
320 | /* U.S. Robotics 56K Message */ |
321 | { "USR9100" , 0 }, |
322 | /* U.S. Robotics 56K FAX EXT PnP*/ |
323 | { "USR9160" , 0 }, |
324 | /* U.S. Robotics 56K FAX INT PnP*/ |
325 | { "USR9170" , 0 }, |
326 | /* U.S. Robotics 56K Voice EXT PnP*/ |
327 | { "USR9180" , 0 }, |
328 | /* U.S. Robotics 56K Voice INT PnP*/ |
329 | { "USR9190" , 0 }, |
330 | /* Wacom tablets */ |
331 | { "WACFXXX" , 0 }, |
332 | /* Compaq touchscreen */ |
333 | { "FPI2002" , 0 }, |
334 | /* Fujitsu Stylistic touchscreens */ |
335 | { "FUJ02B2" , 0 }, |
336 | { "FUJ02B3" , 0 }, |
337 | /* Fujitsu Stylistic LT touchscreens */ |
338 | { "FUJ02B4" , 0 }, |
339 | /* Passive Fujitsu Stylistic touchscreens */ |
340 | { "FUJ02B6" , 0 }, |
341 | { "FUJ02B7" , 0 }, |
342 | { "FUJ02B8" , 0 }, |
343 | { "FUJ02B9" , 0 }, |
344 | { "FUJ02BC" , 0 }, |
345 | /* Fujitsu Wacom Tablet PC device */ |
346 | { "FUJ02E5" , 0 }, |
347 | /* Fujitsu P-series tablet PC device */ |
348 | { "FUJ02E6" , 0 }, |
349 | /* Fujitsu Wacom 2FGT Tablet PC device */ |
350 | { "FUJ02E7" , 0 }, |
351 | /* Fujitsu Wacom 1FGT Tablet PC device */ |
352 | { "FUJ02E9" , 0 }, |
353 | /* |
354 | * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 |
355 | * in disguise). |
356 | */ |
357 | { "LTS0001" , 0 }, |
358 | /* Rockwell's (PORALiNK) 33600 INT PNP */ |
359 | { "WCI0003" , 0 }, |
360 | /* Unknown PnP modems */ |
361 | { "PNPCXXX" , UNKNOWN_DEV }, |
362 | /* More unknown PnP modems */ |
363 | { "PNPDXXX" , UNKNOWN_DEV }, |
364 | /* |
365 | * Winbond CIR port, should not be probed. We should keep track of |
366 | * it to prevent the legacy serial driver from probing it. |
367 | */ |
368 | { "WEC1022" , CIR_PORT }, |
369 | /* |
370 | * SMSC IrCC SIR/FIR port, should not be probed by serial driver as |
371 | * well so its own driver can bind to it. |
372 | */ |
373 | { "SMCF010" , CIR_PORT }, |
374 | { "" , 0 } |
375 | }; |
376 | |
377 | MODULE_DEVICE_TABLE(pnp, pnp_dev_table); |
378 | |
379 | static const char *modem_names[] = { |
380 | "MODEM" , "Modem" , "modem" , "FAX" , "Fax" , "fax" , |
381 | "56K" , "56k" , "K56" , "33.6" , "28.8" , "14.4" , |
382 | "33,600" , "28,800" , "14,400" , "33.600" , "28.800" , "14.400" , |
383 | "33600" , "28800" , "14400" , "V.90" , "V.34" , "V.32" , NULL |
384 | }; |
385 | |
386 | static bool check_name(const char *name) |
387 | { |
388 | const char **tmp; |
389 | |
390 | for (tmp = modem_names; *tmp; tmp++) |
391 | if (strstr(name, *tmp)) |
392 | return true; |
393 | |
394 | return false; |
395 | } |
396 | |
397 | static bool check_resources(struct pnp_dev *dev) |
398 | { |
399 | static const resource_size_t base[] = {0x2f8, 0x3f8, 0x2e8, 0x3e8}; |
400 | unsigned int i; |
401 | |
402 | for (i = 0; i < ARRAY_SIZE(base); i++) { |
403 | if (pnp_possible_config(dev, IORESOURCE_IO, base: base[i], size: 8)) |
404 | return true; |
405 | } |
406 | |
407 | return false; |
408 | } |
409 | |
410 | /* |
411 | * Given a complete unknown PnP device, try to use some heuristics to |
412 | * detect modems. Currently use such heuristic set: |
413 | * - dev->name or dev->bus->name must contain "modem" substring; |
414 | * - device must have only one IO region (8 byte long) with base address |
415 | * 0x2e8, 0x3e8, 0x2f8 or 0x3f8. |
416 | * |
417 | * Such detection looks very ugly, but can detect at least some of numerous |
418 | * PnP modems, alternatively we must hardcode all modems in pnp_devices[] |
419 | * table. |
420 | */ |
421 | static int serial_pnp_guess_board(struct pnp_dev *dev) |
422 | { |
423 | if (!(check_name(pnp_dev_name(dev)) || |
424 | (dev->card && check_name(name: dev->card->name)))) |
425 | return -ENODEV; |
426 | |
427 | if (check_resources(dev)) |
428 | return 0; |
429 | |
430 | return -ENODEV; |
431 | } |
432 | |
433 | static int |
434 | serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) |
435 | { |
436 | struct uart_8250_port uart, *port; |
437 | int ret, line, flags = dev_id->driver_data; |
438 | |
439 | if (flags & UNKNOWN_DEV) { |
440 | ret = serial_pnp_guess_board(dev); |
441 | if (ret < 0) |
442 | return ret; |
443 | } |
444 | |
445 | memset(&uart, 0, sizeof(uart)); |
446 | if (pnp_irq_valid(dev, bar: 0)) |
447 | uart.port.irq = pnp_irq(dev, bar: 0); |
448 | if ((flags & CIR_PORT) && pnp_port_valid(dev, bar: 2)) { |
449 | uart.port.iobase = pnp_port_start(dev, bar: 2); |
450 | uart.port.iotype = UPIO_PORT; |
451 | } else if (pnp_port_valid(dev, bar: 0)) { |
452 | uart.port.iobase = pnp_port_start(dev, bar: 0); |
453 | uart.port.iotype = UPIO_PORT; |
454 | } else if (pnp_mem_valid(dev, bar: 0)) { |
455 | uart.port.mapbase = pnp_mem_start(dev, bar: 0); |
456 | uart.port.iotype = UPIO_MEM; |
457 | uart.port.flags = UPF_IOREMAP; |
458 | } else |
459 | return -ENODEV; |
460 | |
461 | dev_dbg(&dev->dev, |
462 | "Setup PNP port: port %#lx, mem %#llx, irq %u, type %u\n" , |
463 | uart.port.iobase, (unsigned long long)uart.port.mapbase, |
464 | uart.port.irq, uart.port.iotype); |
465 | |
466 | if (flags & CIR_PORT) { |
467 | uart.port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE; |
468 | uart.port.type = PORT_8250_CIR; |
469 | } |
470 | |
471 | uart.port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF; |
472 | if (pnp_irq_flags(dev, bar: 0) & IORESOURCE_IRQ_SHAREABLE) |
473 | uart.port.flags |= UPF_SHARE_IRQ; |
474 | uart.port.uartclk = 1843200; |
475 | device_property_read_u32(dev: &dev->dev, propname: "clock-frequency" , val: &uart.port.uartclk); |
476 | uart.port.dev = &dev->dev; |
477 | |
478 | line = serial8250_register_8250_port(&uart); |
479 | if (line < 0 || (flags & CIR_PORT)) |
480 | return -ENODEV; |
481 | |
482 | port = serial8250_get_port(line); |
483 | if (uart_console(&port->port)) |
484 | dev->capabilities |= PNP_CONSOLE; |
485 | |
486 | pnp_set_drvdata(pdev: dev, data: (void *)((long)line + 1)); |
487 | return 0; |
488 | } |
489 | |
490 | static void serial_pnp_remove(struct pnp_dev *dev) |
491 | { |
492 | long line = (long)pnp_get_drvdata(pdev: dev); |
493 | |
494 | dev->capabilities &= ~PNP_CONSOLE; |
495 | if (line) |
496 | serial8250_unregister_port(line: line - 1); |
497 | } |
498 | |
499 | static int __maybe_unused serial_pnp_suspend(struct device *dev) |
500 | { |
501 | long line = (long)dev_get_drvdata(dev); |
502 | |
503 | if (!line) |
504 | return -ENODEV; |
505 | serial8250_suspend_port(line: line - 1); |
506 | return 0; |
507 | } |
508 | |
509 | static int __maybe_unused serial_pnp_resume(struct device *dev) |
510 | { |
511 | long line = (long)dev_get_drvdata(dev); |
512 | |
513 | if (!line) |
514 | return -ENODEV; |
515 | serial8250_resume_port(line: line - 1); |
516 | return 0; |
517 | } |
518 | |
519 | static SIMPLE_DEV_PM_OPS(serial_pnp_pm_ops, serial_pnp_suspend, serial_pnp_resume); |
520 | |
521 | static struct pnp_driver serial_pnp_driver = { |
522 | .name = "serial" , |
523 | .probe = serial_pnp_probe, |
524 | .remove = serial_pnp_remove, |
525 | .driver = { |
526 | .pm = &serial_pnp_pm_ops, |
527 | }, |
528 | .id_table = pnp_dev_table, |
529 | }; |
530 | |
531 | int serial8250_pnp_init(void) |
532 | { |
533 | return pnp_register_driver(drv: &serial_pnp_driver); |
534 | } |
535 | |
536 | void serial8250_pnp_exit(void) |
537 | { |
538 | pnp_unregister_driver(drv: &serial_pnp_driver); |
539 | } |
540 | |
541 | |