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