8250_pnp.c revision 57fd51a8be26921b56747ddd09d1d9e01c11c9e0 
1/*
2 *  linux/drivers/char/8250_pnp.c
3 *
4 *  Probe module for 8250/16550-type ISAPNP serial ports.
5 *
6 *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
7 *
8 *  Copyright (C) 2001 Russell King, All Rights Reserved.
9 *
10 *  Ported to the Linux PnP Layer - (C) Adam Belay.
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License.
15 *
16 *  $Id: 8250_pnp.c,v 1.10 2002/07/21 21:32:30 rmk Exp $
17 */
18#include <linux/module.h>
19#include <linux/init.h>
20#include <linux/pci.h>
21#include <linux/pnp.h>
22#include <linux/string.h>
23#include <linux/kernel.h>
24#include <linux/serial_core.h>
25#include <linux/bitops.h>
26
27#include <asm/byteorder.h>
28
29#include "8250.h"
30
31#define UNKNOWN_DEV 0x3000
32
33
34static const struct pnp_device_id pnp_dev_table[] = {
35	/* Archtek America Corp. */
36	/* Archtek SmartLink Modem 3334BT Plug & Play */
37	{	"AAC000F",		0	},
38	/* Anchor Datacomm BV */
39	/* SXPro 144 External Data Fax Modem Plug & Play */
40	{	"ADC0001",		0	},
41	/* SXPro 288 External Data Fax Modem Plug & Play */
42	{	"ADC0002",		0	},
43	/* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
44	{	"AEI0250",		0	},
45	/* Actiontec ISA PNP 56K X2 Fax Modem */
46	{	"AEI1240",		0	},
47	/* Rockwell 56K ACF II Fax+Data+Voice Modem */
48	{	"AKY1021",		0 /*SPCI_FL_NO_SHIRQ*/	},
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	/* Boca 33.6 Kbps Internal FD34FSVD */
61	{	"BRI0A49",		0	},
62	/* Best Data Products Inc. Smart One 336F PnP Modem */
63	{	"BDP3336",		0	},
64	/* Computer Peripherals Inc */
65	/* EuroViVa CommCenter-33.6 SP PnP */
66	{	"CPI4050",		0	},
67	/* Creative Labs */
68	/* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
69	{	"CTL3001",		0	},
70	/* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
71	{	"CTL3011",		0	},
72	/* Davicom ISA 33.6K Modem */
73	{	"DAV0336",		0	},
74	/* Creative */
75	/* Creative Modem Blaster Flash56 DI5601-1 */
76	{	"DMB1032",		0	},
77	/* Creative Modem Blaster V.90 DI5660 */
78	{	"DMB2001",		0	},
79	/* E-Tech */
80	/* E-Tech CyberBULLET PC56RVP */
81	{	"ETT0002",		0	},
82	/* FUJITSU */
83	/* Fujitsu 33600 PnP-I2 R Plug & Play */
84	{	"FUJ0202",		0	},
85	/* Fujitsu FMV-FX431 Plug & Play */
86	{	"FUJ0205",		0	},
87	/* Fujitsu 33600 PnP-I4 R Plug & Play */
88	{	"FUJ0206",		0	},
89	/* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
90	{	"FUJ0209",		0	},
91	/* Archtek America Corp. */
92	/* Archtek SmartLink Modem 3334BT Plug & Play */
93	{	"GVC000F",		0	},
94	/* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */
95	{	"GVC0303",		0	},
96	/* Hayes */
97	/* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
98	{	"HAY0001",		0	},
99	/* Hayes Optima 336 V.34 + FAX + Voice PnP */
100	{	"HAY000C",		0	},
101	/* Hayes Optima 336B V.34 + FAX + Voice PnP */
102	{	"HAY000D",		0	},
103	/* Hayes Accura 56K Ext Fax Modem PnP */
104	{	"HAY5670",		0	},
105	/* Hayes Accura 56K Ext Fax Modem PnP */
106	{	"HAY5674",		0	},
107	/* Hayes Accura 56K Fax Modem PnP */
108	{	"HAY5675",		0	},
109	/* Hayes 288, V.34 + FAX */
110	{	"HAYF000",		0	},
111	/* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */
112	{	"HAYF001",		0	},
113	/* IBM */
114	/* IBM Thinkpad 701 Internal Modem Voice */
115	{	"IBM0033",		0	},
116	/* Intertex */
117	/* Intertex 28k8 33k6 Voice EXT PnP */
118	{	"IXDC801",		0	},
119	/* Intertex 33k6 56k Voice EXT PnP */
120	{	"IXDC901",		0	},
121	/* Intertex 28k8 33k6 Voice SP EXT PnP */
122	{	"IXDD801",		0	},
123	/* Intertex 33k6 56k Voice SP EXT PnP */
124	{	"IXDD901",		0	},
125	/* Intertex 28k8 33k6 Voice SP INT PnP */
126	{	"IXDF401",		0	},
127	/* Intertex 28k8 33k6 Voice SP EXT PnP */
128	{	"IXDF801",		0	},
129	/* Intertex 33k6 56k Voice SP EXT PnP */
130	{	"IXDF901",		0	},
131	/* Kortex International */
132	/* KORTEX 28800 Externe PnP */
133	{	"KOR4522",		0	},
134	/* KXPro 33.6 Vocal ASVD PnP */
135	{	"KORF661",		0	},
136	/* Lasat */
137	/* LASAT Internet 33600 PnP */
138	{	"LAS4040",		0	},
139	/* Lasat Safire 560 PnP */
140	{	"LAS4540",		0	},
141	/* Lasat Safire 336  PnP */
142	{	"LAS5440",		0	},
143	/* Microcom, Inc. */
144	/* Microcom TravelPorte FAST V.34 Plug & Play */
145	{	"MNP0281",		0	},
146	/* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */
147	{	"MNP0336",		0	},
148	/* Microcom DeskPorte FAST EP 28.8 Plug & Play */
149	{	"MNP0339",		0	},
150	/* Microcom DeskPorte 28.8P Plug & Play */
151	{	"MNP0342",		0	},
152	/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
153	{	"MNP0500",		0	},
154	/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
155	{	"MNP0501",		0	},
156	/* Microcom DeskPorte 28.8S Internal Plug & Play */
157	{	"MNP0502",		0	},
158	/* Motorola */
159	/* Motorola BitSURFR Plug & Play */
160	{	"MOT1105",		0	},
161	/* Motorola TA210 Plug & Play */
162	{	"MOT1111",		0	},
163	/* Motorola HMTA 200 (ISDN) Plug & Play */
164	{	"MOT1114",		0	},
165	/* Motorola BitSURFR Plug & Play */
166	{	"MOT1115",		0	},
167	/* Motorola Lifestyle 28.8 Internal */
168	{	"MOT1190",		0	},
169	/* Motorola V.3400 Plug & Play */
170	{	"MOT1501",		0	},
171	/* Motorola Lifestyle 28.8 V.34 Plug & Play */
172	{	"MOT1502",		0	},
173	/* Motorola Power 28.8 V.34 Plug & Play */
174	{	"MOT1505",		0	},
175	/* Motorola ModemSURFR External 28.8 Plug & Play */
176	{	"MOT1509",		0	},
177	/* Motorola Premier 33.6 Desktop Plug & Play */
178	{	"MOT150A",		0	},
179	/* Motorola VoiceSURFR 56K External PnP */
180	{	"MOT150F",		0	},
181	/* Motorola ModemSURFR 56K External PnP */
182	{	"MOT1510",		0	},
183	/* Motorola ModemSURFR 56K Internal PnP */
184	{	"MOT1550",		0	},
185	/* Motorola ModemSURFR Internal 28.8 Plug & Play */
186	{	"MOT1560",		0	},
187	/* Motorola Premier 33.6 Internal Plug & Play */
188	{	"MOT1580",		0	},
189	/* Motorola OnlineSURFR 28.8 Internal Plug & Play */
190	{	"MOT15B0",		0	},
191	/* Motorola VoiceSURFR 56K Internal PnP */
192	{	"MOT15F0",		0	},
193	/* Com 1 */
194	/*  Deskline K56 Phone System PnP */
195	{	"MVX00A1",		0	},
196	/* PC Rider K56 Phone System PnP */
197	{	"MVX00F2",		0	},
198	/* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */
199	{	"nEC8241",		0	},
200	/* Pace 56 Voice Internal Plug & Play Modem */
201	{	"PMC2430",		0	},
202	/* Generic */
203	/* Generic standard PC COM port	 */
204	{	"PNP0500",		0	},
205	/* Generic 16550A-compatible COM port */
206	{	"PNP0501",		0	},
207	/* Compaq 14400 Modem */
208	{	"PNPC000",		0	},
209	/* Compaq 2400/9600 Modem */
210	{	"PNPC001",		0	},
211	/* Dial-Up Networking Serial Cable between 2 PCs */
212	{	"PNPC031",		0	},
213	/* Dial-Up Networking Parallel Cable between 2 PCs */
214	{	"PNPC032",		0	},
215	/* Standard 9600 bps Modem */
216	{	"PNPC100",		0	},
217	/* Standard 14400 bps Modem */
218	{	"PNPC101",		0	},
219	/*  Standard 28800 bps Modem*/
220	{	"PNPC102",		0	},
221	/*  Standard Modem*/
222	{	"PNPC103",		0	},
223	/*  Standard 9600 bps Modem*/
224	{	"PNPC104",		0	},
225	/*  Standard 14400 bps Modem*/
226	{	"PNPC105",		0	},
227	/*  Standard 28800 bps Modem*/
228	{	"PNPC106",		0	},
229	/*  Standard Modem */
230	{	"PNPC107",		0	},
231	/* Standard 9600 bps Modem */
232	{	"PNPC108",		0	},
233	/* Standard 14400 bps Modem */
234	{	"PNPC109",		0	},
235	/* Standard 28800 bps Modem */
236	{	"PNPC10A",		0	},
237	/* Standard Modem */
238	{	"PNPC10B",		0	},
239	/* Standard 9600 bps Modem */
240	{	"PNPC10C",		0	},
241	/* Standard 14400 bps Modem */
242	{	"PNPC10D",		0	},
243	/* Standard 28800 bps Modem */
244	{	"PNPC10E",		0	},
245	/* Standard Modem */
246	{	"PNPC10F",		0	},
247	/* Standard PCMCIA Card Modem */
248	{	"PNP2000",		0	},
249	/* Rockwell */
250	/* Modular Technology */
251	/* Rockwell 33.6 DPF Internal PnP */
252	/* Modular Technology 33.6 Internal PnP */
253	{	"ROK0030",		0	},
254	/* Kortex International */
255	/* KORTEX 14400 Externe PnP */
256	{	"ROK0100",		0	},
257	/* Rockwell 28.8 */
258	{	"ROK4120",		0	},
259	/* Viking Components, Inc */
260	/* Viking 28.8 INTERNAL Fax+Data+Voice PnP */
261	{	"ROK4920",		0	},
262	/* Rockwell */
263	/* British Telecom */
264	/* Modular Technology */
265	/* Rockwell 33.6 DPF External PnP */
266	/* BT Prologue 33.6 External PnP */
267	/* Modular Technology 33.6 External PnP */
268	{	"RSS00A0",		0	},
269	/* Viking 56K FAX INT */
270	{	"RSS0262",		0	},
271	/* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */
272	{       "RSS0250",              0       },
273	/* SupraExpress 28.8 Data/Fax PnP modem */
274	{	"SUP1310",		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	{	"WACF004",		0	},
332	{	"WACF005",		0	},
333	{       "WACF006",              0       },
334	{       "WACF007",              0       },
335	{       "WACF008",              0       },
336	/* Compaq touchscreen */
337	{       "FPI2002",              0 },
338	/* Fujitsu Stylistic touchscreens */
339	{       "FUJ02B2",              0 },
340	{       "FUJ02B3",              0 },
341	/* Fujitsu Stylistic LT touchscreens */
342	{       "FUJ02B4",              0 },
343	/* Passive Fujitsu Stylistic touchscreens */
344	{       "FUJ02B6",              0 },
345	{       "FUJ02B7",              0 },
346	{       "FUJ02B8",              0 },
347	{       "FUJ02B9",              0 },
348	{       "FUJ02BC",              0 },
349	/* Fujitsu Wacom Tablet PC devices */
350	{	"FUJ02E5",		0	},
351	{	"FUJ02E6",		0	},
352	/*
353	 * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 in
354	 * disguise)
355	 */
356	{	"LTS0001",		0       },
357	/* Rockwell's (PORALiNK) 33600 INT PNP */
358	{	"WCI0003",		0	},
359	/* Unkown PnP modems */
360	{	"PNPCXXX",		UNKNOWN_DEV	},
361	/* More unkown PnP modems */
362	{	"PNPDXXX",		UNKNOWN_DEV	},
363	{	"",			0	}
364};
365
366MODULE_DEVICE_TABLE(pnp, pnp_dev_table);
367
368static char *modem_names[] __devinitdata = {
369	"MODEM", "Modem", "modem", "FAX", "Fax", "fax",
370	"56K", "56k", "K56", "33.6", "28.8", "14.4",
371	"33,600", "28,800", "14,400", "33.600", "28.800", "14.400",
372	"33600", "28800", "14400", "V.90", "V.34", "V.32", NULL
373};
374
375static int __devinit check_name(char *name)
376{
377	char **tmp;
378
379	for (tmp = modem_names; *tmp; tmp++)
380		if (strstr(name, *tmp))
381			return 1;
382
383	return 0;
384}
385
386static int __devinit check_resources(struct pnp_dev *dev)
387{
388	resource_size_t base[] = {0x2f8, 0x3f8, 0x2e8, 0x3e8};
389	int i;
390
391	for (i = 0; i < ARRAY_SIZE(base); i++) {
392		if (pnp_possible_config(dev, IORESOURCE_IO, base[i], 8))
393			return 1;
394	}
395
396	return 0;
397}
398
399/*
400 * Given a complete unknown PnP device, try to use some heuristics to
401 * detect modems. Currently use such heuristic set:
402 *     - dev->name or dev->bus->name must contain "modem" substring;
403 *     - device must have only one IO region (8 byte long) with base address
404 *       0x2e8, 0x3e8, 0x2f8 or 0x3f8.
405 *
406 * Such detection looks very ugly, but can detect at least some of numerous
407 * PnP modems, alternatively we must hardcode all modems in pnp_devices[]
408 * table.
409 */
410static int __devinit serial_pnp_guess_board(struct pnp_dev *dev, int *flags)
411{
412	if (!(check_name(pnp_dev_name(dev)) ||
413		(dev->card && check_name(dev->card->name))))
414			return -ENODEV;
415
416	if (check_resources(dev))
417		return 0;
418
419	return -ENODEV;
420}
421
422static int __devinit
423serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
424{
425	struct uart_port port;
426	int ret, line, flags = dev_id->driver_data;
427
428	if (flags & UNKNOWN_DEV) {
429		ret = serial_pnp_guess_board(dev, &flags);
430		if (ret < 0)
431			return ret;
432	}
433
434	memset(&port, 0, sizeof(struct uart_port));
435	if (pnp_irq_valid(dev, 0))
436		port.irq = pnp_irq(dev, 0);
437	if (pnp_port_valid(dev, 0)) {
438		port.iobase = pnp_port_start(dev, 0);
439		port.iotype = UPIO_PORT;
440	} else if (pnp_mem_valid(dev, 0)) {
441		port.mapbase = pnp_mem_start(dev, 0);
442		port.iotype = UPIO_MEM;
443		port.flags = UPF_IOREMAP;
444	} else
445		return -ENODEV;
446
447#ifdef SERIAL_DEBUG_PNP
448	printk(KERN_DEBUG
449		"Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
450		       port.iobase, port.mapbase, port.irq, port.iotype);
451#endif
452
453	port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
454	if (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE)
455		port.flags |= UPF_SHARE_IRQ;
456	port.uartclk = 1843200;
457	port.dev = &dev->dev;
458
459	line = serial8250_register_port(&port);
460	if (line < 0)
461		return -ENODEV;
462
463	pnp_set_drvdata(dev, (void *)((long)line + 1));
464	return 0;
465}
466
467static void __devexit serial_pnp_remove(struct pnp_dev *dev)
468{
469	long line = (long)pnp_get_drvdata(dev);
470	if (line)
471		serial8250_unregister_port(line - 1);
472}
473
474#ifdef CONFIG_PM
475static int serial_pnp_suspend(struct pnp_dev *dev, pm_message_t state)
476{
477	long line = (long)pnp_get_drvdata(dev);
478
479	if (!line)
480		return -ENODEV;
481	serial8250_suspend_port(line - 1);
482	return 0;
483}
484
485static int serial_pnp_resume(struct pnp_dev *dev)
486{
487	long line = (long)pnp_get_drvdata(dev);
488
489	if (!line)
490		return -ENODEV;
491	serial8250_resume_port(line - 1);
492	return 0;
493}
494#else
495#define serial_pnp_suspend NULL
496#define serial_pnp_resume NULL
497#endif /* CONFIG_PM */
498
499static struct pnp_driver serial_pnp_driver = {
500	.name		= "serial",
501	.probe		= serial_pnp_probe,
502	.remove		= __devexit_p(serial_pnp_remove),
503	.suspend	= serial_pnp_suspend,
504	.resume		= serial_pnp_resume,
505	.id_table	= pnp_dev_table,
506};
507
508static int __init serial8250_pnp_init(void)
509{
510	return pnp_register_driver(&serial_pnp_driver);
511}
512
513static void __exit serial8250_pnp_exit(void)
514{
515	pnp_unregister_driver(&serial_pnp_driver);
516}
517
518module_init(serial8250_pnp_init);
519module_exit(serial8250_pnp_exit);
520
521MODULE_LICENSE("GPL");
522MODULE_DESCRIPTION("Generic 8250/16x50 PnP serial driver");
523