aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/tty/serial/8250/8250_pnp.c
blob: 2b8a6ac173f65abe06ced5e6405310e4fcea7ab0 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
/*
 *  Probe for 8250/16550-type ISAPNP serial ports.
 *
 *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
 *
 *  Copyright (C) 2001 Russell King, All Rights Reserved.
 *
 *  Ported to the Linux PnP Layer - (C) Adam Belay.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License.
 */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/pnp.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/serial_core.h>
#include <linux/bitops.h>

#include <asm/byteorder.h>

#include "8250.h"

#define UNKNOWN_DEV 0x3000
#define CIR_PORT	0x0800

static const struct pnp_device_id pnp_dev_table[] = {
	/* Archtek America Corp. */
	/* Archtek SmartLink Modem 3334BT Plug & Play */
	{	"AAC000F",		0	},
	/* Anchor Datacomm BV */
	/* SXPro 144 External Data Fax Modem Plug & Play */
	{	"ADC0001",		0	},
	/* SXPro 288 External Data Fax Modem Plug & Play */
	{	"ADC0002",		0	},
	/* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
	{	"AEI0250",		0	},
	/* Actiontec ISA PNP 56K X2 Fax Modem */
	{	"AEI1240",		0	},
	/* Rockwell 56K ACF II Fax+Data+Voice Modem */
	{	"AKY1021",		0 /*SPCI_FL_NO_SHIRQ*/	},
	/* AZT3005 PnP SOUND DEVICE */
	{	"AZT4001",		0	},
	/* Best Data Products Inc. Smart One 336F PnP Modem */
	{	"BDP3336",		0	},
	/*  Boca Research */
	/* Boca Complete Ofc Communicator 14.4 Data-FAX */
	{	"BRI0A49",		0	},
	/* Boca Research 33,600 ACF Modem */
	{	"BRI1400",		0	},
	/* Boca 33.6 Kbps Internal FD34FSVD */
	{	"BRI3400",		0	},
	/* Boca 33.6 Kbps Internal FD34FSVD */
	{	"BRI0A49",		0	},
	/* Best Data Products Inc. Smart One 336F PnP Modem */
	{	"BDP3336",		0	},
	/* Computer Peripherals Inc */
	/* EuroViVa CommCenter-33.6 SP PnP */
	{	"CPI4050",		0	},
	/* Creative Labs */
	/* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
	{	"CTL3001",		0	},
	/* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
	{	"CTL3011",		0	},
	/* Davicom ISA 33.6K Modem */
	{	"DAV0336",		0	},
	/* Creative */
	/* Creative Modem Blaster Flash56 DI5601-1 */
	{	"DMB1032",		0	},
	/* Creative Modem Blaster V.90 DI5660 */
	{	"DMB2001",		0	},
	/* E-Tech */
	/* E-Tech CyberBULLET PC56RVP */
	{	"ETT0002",		0	},
	/* FUJITSU */
	/* Fujitsu 33600 PnP-I2 R Plug & Play */
	{	"FUJ0202",		0	},
	/* Fujitsu FMV-FX431 Plug & Play */
	{	"FUJ0205",		0	},
	/* Fujitsu 33600 PnP-I4 R Plug & Play */
	{	"FUJ0206",		0	},
	/* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
	{	"FUJ0209",		0	},
	/* Archtek America Corp. */
	/* Archtek SmartLink Modem 3334BT Plug & Play */
	{	"GVC000F",		0	},
	/* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */
	{	"GVC0303",		0	},
	/* Hayes */
	/* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
	{	"HAY0001",		0	},
	/* Hayes Optima 336 V.34 + FAX + Voice PnP */
	{	"HAY000C",		0	},
	/* Hayes Optima 336B V.34 + FAX + Voice PnP */
	{	"HAY000D",		0	},
	/* Hayes Accura 56K Ext Fax Modem PnP */
	{	"HAY5670",		0	},
	/* Hayes Accura 56K Ext Fax Modem PnP */
	{	"HAY5674",		0	},
	/* Hayes Accura 56K Fax Modem PnP */
	{	"HAY5675",		0	},
	/* Hayes 288, V.34 + FAX */
	{	"HAYF000",		0	},
	/* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */
	{	"HAYF001",		0	},
	/* IBM */
	/* IBM Thinkpad 701 Internal Modem Voice */
	{	"IBM0033",		0	},
	/* Intermec */
	/* Intermec CV60 touchscreen port */
	{	"PNP4972",		0	},
	/* Intertex */
	/* Intertex 28k8 33k6 Voice EXT PnP */
	{	"IXDC801",		0	},
	/* Intertex 33k6 56k Voice EXT PnP */
	{	"IXDC901",		0	},
	/* Intertex 28k8 33k6 Voice SP EXT PnP */
	{	"IXDD801",		0	},
	/* Intertex 33k6 56k Voice SP EXT PnP */
	{	"IXDD901",		0	},
	/* Intertex 28k8 33k6 Voice SP INT PnP */
	{	"IXDF401",		0	},
	/* Intertex 28k8 33k6 Voice SP EXT PnP */
	{	"IXDF801",		0	},
	/* Intertex 33k6 56k Voice SP EXT PnP */
	{	"IXDF901",		0	},
	/* Kortex International */
	/* KORTEX 28800 Externe PnP */
	{	"KOR4522",		0	},
	/* KXPro 33.6 Vocal ASVD PnP */
	{	"KORF661",		0	},
	/* Lasat */
	/* LASAT Internet 33600 PnP */
	{	"LAS4040",		0	},
	/* Lasat Safire 560 PnP */
	{	"LAS4540",		0	},
	/* Lasat Safire 336  PnP */
	{	"LAS5440",		0	},
	/* Microcom, Inc. */
	/* Microcom TravelPorte FAST V.34 Plug & Play */
	{	"MNP0281",		0	},
	/* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */
	{	"MNP0336",		0	},
	/* Microcom DeskPorte FAST EP 28.8 Plug & Play */
	{	"MNP0339",		0	},
	/* Microcom DeskPorte 28.8P Plug & Play */
	{	"MNP0342",		0	},
	/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
	{	"MNP0500",		0	},
	/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
	{	"MNP0501",		0	},
	/* Microcom DeskPorte 28.8S Internal Plug & Play */
	{	"MNP0502",		0	},
	/* Motorola */
	/* Motorola BitSURFR Plug & Play */
	{	"MOT1105",		0	},
	/* Motorola TA210 Plug & Play */
	{	"MOT1111",		0	},
	/* Motorola HMTA 200 (ISDN) Plug & Play */
	{	"MOT1114",		0	},
	/* Motorola BitSURFR Plug & Play */
	{	"MOT1115",		0	},
	/* Motorola Lifestyle 28.8 Internal */
	{	"MOT1190",		0	},
	/* Motorola V.3400 Plug & Play */
	{	"MOT1501",		0	},
	/* Motorola Lifestyle 28.8 V.34 Plug & Play */
	{	"MOT1502",		0	},
	/* Motorola Power 28.8 V.34 Plug & Play */
	{	"MOT1505",		0	},
	/* Motorola ModemSURFR External 28.8 Plug & Play */
	{	"MOT1509",		0	},
	/* Motorola Premier 33.6 Desktop Plug & Play */
	{	"MOT150A",		0	},
	/* Motorola VoiceSURFR 56K External PnP */
	{	"MOT150F",		0	},
	/* Motorola ModemSURFR 56K External PnP */
	{	"MOT1510",		0	},
	/* Motorola ModemSURFR 56K Internal PnP */
	{	"MOT1550",		0	},
	/* Motorola ModemSURFR Internal 28.8 Plug & Play */
	{	"MOT1560",		0	},
	/* Motorola Premier 33.6 Internal Plug & Play */
	{	"MOT1580",		0	},
	/* Motorola OnlineSURFR 28.8 Internal Plug & Play */
	{	"MOT15B0",		0	},
	/* Motorola VoiceSURFR 56K Internal PnP */
	{	"MOT15F0",		0	},
	/* Com 1 */
	/*  Deskline K56 Phone System PnP */
	{	"MVX00A1",		0	},
	/* PC Rider K56 Phone System PnP */
	{	"MVX00F2",		0	},
	/* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */
	{	"nEC8241",		0	},
	/* Pace 56 Voice Internal Plug & Play Modem */
	{	"PMC2430",		0	},
	/* Generic */
	/* Generic standard PC COM port	 */
	{	"PNP0500",		0	},
	/* Generic 16550A-compatible COM port */
	{	"PNP0501",		0	},
	/* Compaq 14400 Modem */
	{	"PNPC000",		0	},
	/* Compaq 2400/9600 Modem */
	{	"PNPC001",		0	},
	/* Dial-Up Networking Serial Cable between 2 PCs */
	{	"PNPC031",		0	},
	/* Dial-Up Networking Parallel Cable between 2 PCs */
	{	"PNPC032",		0	},
	/* Standard 9600 bps Modem */
	{	"PNPC100",		0	},
	/* Standard 14400 bps Modem */
	{	"PNPC101",		0	},
	/*  Standard 28800 bps Modem*/
	{	"PNPC102",		0	},
	/*  Standard Modem*/
	{	"PNPC103",		0	},
	/*  Standard 9600 bps Modem*/
	{	"PNPC104",		0	},
	/*  Standard 14400 bps Modem*/
	{	"PNPC105",		0	},
	/*  Standard 28800 bps Modem*/
	{	"PNPC106",		0	},
	/*  Standard Modem */
	{	"PNPC107",		0	},
	/* Standard 9600 bps Modem */
	{	"PNPC108",		0	},
	/* Standard 14400 bps Modem */
	{	"PNPC109",		0	},
	/* Standard 28800 bps Modem */
	{	"PNPC10A",		0	},
	/* Standard Modem */
	{	"PNPC10B",		0	},
	/* Standard 9600 bps Modem */
	{	"PNPC10C",		0	},
	/* Standard 14400 bps Modem */
	{	"PNPC10D",		0	},
	/* Standard 28800 bps Modem */
	{	"PNPC10E",		0	},
	/* Standard Modem */
	{	"PNPC10F",		0	},
	/* Standard PCMCIA Card Modem */
	{	"PNP2000",		0	},
	/* Rockwell */
	/* Modular Technology */
	/* Rockwell 33.6 DPF Internal PnP */
	/* Modular Technology 33.6 Internal PnP */
	{	"ROK0030",		0	},
	/* Kortex International */
	/* KORTEX 14400 Externe PnP */
	{	"ROK0100",		0	},
	/* Rockwell 28.8 */
	{	"ROK4120",		0	},
	/* Viking Components, Inc */
	/* Viking 28.8 INTERNAL Fax+Data+Voice PnP */
	{	"ROK4920",		0	},
	/* Rockwell */
	/* British Telecom */
	/* Modular Technology */
	/* Rockwell 33.6 DPF External PnP */
	/* BT Prologue 33.6 External PnP */
	/* Modular Technology 33.6 External PnP */
	{	"RSS00A0",		0	},
	/* Viking 56K FAX INT */
	{	"RSS0262",		0	},
	/* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */
	{       "RSS0250",              0       },
	/* SupraExpress 28.8 Data/Fax PnP modem */
	{	"SUP1310",		0	},
	/* SupraExpress 336i PnP Voice Modem */
	{	"SUP1381",		0	},
	/* SupraExpress 33.6 Data/Fax PnP modem */
	{	"SUP1421",		0	},
	/* SupraExpress 33.6 Data/Fax PnP modem */
	{	"SUP1590",		0	},
	/* SupraExpress 336i Sp ASVD */
	{	"SUP1620",		0	},
	/* SupraExpress 33.6 Data/Fax PnP modem */
	{	"SUP1760",		0	},
	/* SupraExpress 56i Sp Intl */
	{	"SUP2171",		0	},
	/* Phoebe Micro */
	/* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
	{	"TEX0011",		0	},
	/* Archtek America Corp. */
	/* Archtek SmartLink Modem 3334BT Plug & Play */
	{	"UAC000F",		0	},
	/* 3Com Corp. */
	/* Gateway Telepath IIvi 33.6 */
	{	"USR0000",		0	},
	/* U.S. Robotics Sporster 33.6K Fax INT PnP */
	{	"USR0002",		0	},
	/*  Sportster Vi 14.4 PnP FAX Voicemail */
	{	"USR0004",		0	},
	/* U.S. Robotics 33.6K Voice INT PnP */
	{	"USR0006",		0	},
	/* U.S. Robotics 33.6K Voice EXT PnP */
	{	"USR0007",		0	},
	/* U.S. Robotics Courier V.Everything INT PnP */
	{	"USR0009",		0	},
	/* U.S. Robotics 33.6K Voice INT PnP */
	{	"USR2002",		0	},
	/* U.S. Robotics 56K Voice INT PnP */
	{	"USR2070",		0	},
	/* U.S. Robotics 56K Voice EXT PnP */
	{	"USR2080",		0	},
	/* U.S. Robotics 56K FAX INT */
	{	"USR3031",		0	},
	/* U.S. Robotics 56K FAX INT */
	{	"USR3050",		0	},
	/* U.S. Robotics 56K Voice INT PnP */
	{	"USR3070",		0	},
	/* U.S. Robotics 56K Voice EXT PnP */
	{	"USR3080",		0	},
	/* U.S. Robotics 56K Voice INT PnP */
	{	"USR3090",		0	},
	/* U.S. Robotics 56K Message  */
	{	"USR9100",		0	},
	/* U.S. Robotics 56K FAX EXT PnP*/
	{	"USR9160",		0	},
	/* U.S. Robotics 56K FAX INT PnP*/
	{	"USR9170",		0	},
	/* U.S. Robotics 56K Voice EXT PnP*/
	{	"USR9180",		0	},
	/* U.S. Robotics 56K Voice INT PnP*/
	{	"USR9190",		0	},
	/* Wacom tablets */
	{	"WACFXXX",		0	},
	/* Compaq touchscreen */
	{       "FPI2002",              0 },
	/* Fujitsu Stylistic touchscreens */
	{       "FUJ02B2",              0 },
	{       "FUJ02B3",              0 },
	/* Fujitsu Stylistic LT touchscreens */
	{       "FUJ02B4",              0 },
	/* Passive Fujitsu Stylistic touchscreens */
	{       "FUJ02B6",              0 },
	{       "FUJ02B7",              0 },
	{       "FUJ02B8",              0 },
	{       "FUJ02B9",              0 },
	{       "FUJ02BC",              0 },
	/* Fujitsu Wacom Tablet PC device */
	{	"FUJ02E5",		0	},
	/* Fujitsu P-series tablet PC device */
	{	"FUJ02E6",		0	},
	/* Fujitsu Wacom 2FGT Tablet PC device */
	{	"FUJ02E7",		0	},
	/* Fujitsu Wacom 1FGT Tablet PC device */
	{	"FUJ02E9",		0	},
	/*
	 * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 in
	 * disguise)
	 */
	{	"LTS0001",		0       },
	/* Rockwell's (PORALiNK) 33600 INT PNP */
	{	"WCI0003",		0	},
	/* Unknown PnP modems */
	{	"PNPCXXX",		UNKNOWN_DEV	},
	/* More unknown PnP modems */
	{	"PNPDXXX",		UNKNOWN_DEV	},
	/* Winbond CIR port, should not be probed. We should keep track
	   of it to prevent the legacy serial driver from probing it */
	{	"WEC1022",		CIR_PORT	},
	{	"",			0	}
};

MODULE_DEVICE_TABLE(pnp, pnp_dev_table);

static char *modem_names[] __devinitdata = {
	"MODEM", "Modem", "modem", "FAX", "Fax", "fax",
	"56K", "56k", "K56", "33.6", "28.8", "14.4",
	"33,600", "28,800", "14,400", "33.600", "28.800", "14.400",
	"33600", "28800", "14400", "V.90", "V.34", "V.32", NULL
};

static int check_name(char *name)
{
	char **tmp;

	for (tmp = modem_names; *tmp; tmp++)
		if (strstr(name, *tmp))
			return 1;

	return 0;
}

static int check_resources(struct pnp_dev *dev)
{
	resource_size_t base[] = {0x2f8, 0x3f8, 0x2e8, 0x3e8};
	int i;

	for (i = 0; i < ARRAY_SIZE(base); i++) {
		if (pnp_possible_config(dev, IORESOURCE_IO, base[i], 8))
			return 1;
	}

	return 0;
}

/*
 * Given a complete unknown PnP device, try to use some heuristics to
 * detect modems. Currently use such heuristic set:
 *     - dev->name or dev->bus->name must contain "modem" substring;
 *     - device must have only one IO region (8 byte long) with base address
 *       0x2e8, 0x3e8, 0x2f8 or 0x3f8.
 *
 * Such detection looks very ugly, but can detect at least some of numerous
 * PnP modems, alternatively we must hardcode all modems in pnp_devices[]
 * table.
 */
static int serial_pnp_guess_board(struct pnp_dev *dev)
{
	if (!(check_name(pnp_dev_name(dev)) ||
		(dev->card && check_name(dev->card->name))))
			return -ENODEV;

	if (check_resources(dev))
		return 0;

	return -ENODEV;
}

static int
serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
{
	struct uart_8250_port uart;
	int ret, line, flags = dev_id->driver_data;

	if (flags & UNKNOWN_DEV) {
		ret = serial_pnp_guess_board(dev);
		if (ret < 0)
			return ret;
	}

	memset(&uart, 0, sizeof(uart));
	if (pnp_irq_valid(dev, 0))
		uart.port.irq = pnp_irq(dev, 0);
	if ((flags & CIR_PORT) && pnp_port_valid(dev, 2)) {
		uart.port.iobase = pnp_port_start(dev, 2);
		uart.port.iotype = UPIO_PORT;
	} else if (pnp_port_valid(dev, 0)) {
		uart.port.iobase = pnp_port_start(dev, 0);
		uart.port.iotype = UPIO_PORT;
	} else if (pnp_mem_valid(dev, 0)) {
		uart.port.mapbase = pnp_mem_start(dev, 0);
		uart.port.iotype = UPIO_MEM;
		uart.port.flags = UPF_IOREMAP;
	} else
		return -ENODEV;

#ifdef SERIAL_DEBUG_PNP
	printk(KERN_DEBUG
		"Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
		       uart.port.iobase, uart.port.mapbase, uart.port.irq, uart.port.iotype);
#endif
	if (flags & CIR_PORT) {
		uart.port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE;
		uart.port.type = PORT_8250_CIR;
	}

	uart.port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
	if (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE)
		uart.port.flags |= UPF_SHARE_IRQ;
	uart.port.uartclk = 1843200;
	uart.port.dev = &dev->dev;

	line = serial8250_register_8250_port(&uart);
	if (line < 0 || (flags & CIR_PORT))
		return -ENODEV;

	pnp_set_drvdata(dev, (void *)((long)line + 1));
	return 0;
}

static void __devexit serial_pnp_remove(struct pnp_dev *dev)
{
	long line = (long)pnp_get_drvdata(dev);
	if (line)
		serial8250_unregister_port(line - 1);
}

#ifdef CONFIG_PM
static int serial_pnp_suspend(struct pnp_dev *dev, pm_message_t state)
{
	long line = (long)pnp_get_drvdata(dev);

	if (!line)
		return -ENODEV;
	serial8250_suspend_port(line - 1);
	return 0;
}

static int serial_pnp_resume(struct pnp_dev *dev)
{
	long line = (long)pnp_get_drvdata(dev);

	if (!line)
		return -ENODEV;
	serial8250_resume_port(line - 1);
	return 0;
}
#else
#define serial_pnp_suspend NULL
#define serial_pnp_resume NULL
#endif /* CONFIG_PM */

static struct pnp_driver serial_pnp_driver = {
	.name		= "serial",
	.probe		= serial_pnp_probe,
	.remove		= serial_pnp_remove,
	.suspend	= serial_pnp_suspend,
	.resume		= serial_pnp_resume,
	.id_table	= pnp_dev_table,
};

int serial8250_pnp_init(void)
{
	return pnp_register_driver(&serial_pnp_driver);
}

void serial8250_pnp_exit(void)
{
	pnp_unregister_driver(&serial_pnp_driver);
}